WO2021038859A1 - Machine d'usinage rotative et système d'usinage rotatif - Google Patents

Machine d'usinage rotative et système d'usinage rotatif Download PDF

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Publication number
WO2021038859A1
WO2021038859A1 PCT/JP2019/034242 JP2019034242W WO2021038859A1 WO 2021038859 A1 WO2021038859 A1 WO 2021038859A1 JP 2019034242 W JP2019034242 W JP 2019034242W WO 2021038859 A1 WO2021038859 A1 WO 2021038859A1
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WIPO (PCT)
Prior art keywords
acceleration
acceleration sensor
measurement direction
machining tool
rotary machining
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PCT/JP2019/034242
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English (en)
Japanese (ja)
Inventor
小池雄介
Original Assignee
住友電気工業株式会社
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Application filed by 住友電気工業株式会社 filed Critical 住友電気工業株式会社
Priority to JP2021541943A priority Critical patent/JP7264255B2/ja
Priority to PCT/JP2019/034242 priority patent/WO2021038859A1/fr
Publication of WO2021038859A1 publication Critical patent/WO2021038859A1/fr

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q17/00—Arrangements for observing, indicating or measuring on machine tools

Definitions

  • This disclosure relates to rotary machining tools and rotary machining systems.
  • Patent Document 1 Japanese Unexamined Patent Publication No. 2003-627173 discloses the following rotary machining tools. That is, a cylindrical straight shank having a constant diameter and a processed portion are coaxially integrally provided, and the straight shank is inserted into the insertion portion of the holder from the axial direction and held detachably.
  • a straight shank rotary machining tool that performs a predetermined machining by the machining portion by being rotationally driven around the axis in a state, the straight shank is provided with the straight shank in the axial direction when inserted into the insertion portion of the holder. It is characterized in that a stopper that is engaged with the holder and defines the protruding dimension of the processed portion from the holder is provided.
  • the rotary machining tool of the present disclosure includes a shaft portion, a blade mounting portion or a blade portion provided at an end portion of the shaft portion, and a first acceleration sensor attached to the shaft portion, and the first acceleration sensor.
  • the rotary processing tool of the present disclosure includes a shaft portion, a blade mounting portion or a blade portion provided at an end portion of the shaft portion, and a support portion that supports the first acceleration sensor in the shaft portion, and the support portion includes the support portion.
  • the first acceleration sensor is supported so that the first measurement direction of the first acceleration sensor is inclined with respect to each of the plane having the rotation axis of the shaft portion as a normal line and the rotation axis.
  • the rotary machining system of the present disclosure includes a rotary machining tool and a management device, and the rotary machining tool is provided on a shaft portion, a blade mounting portion or a blade portion provided at an end portion of the shaft portion, and the shaft portion.
  • a first measurement including a first accelerometer to be attached, wherein the first accelerometer is tilted with respect to a plane having a rotation axis of the shaft portion as a normal line and is tilted with respect to the rotation axis.
  • the rotary processing tool further includes a wireless communication device having a direction and transmitting sensor information indicating a measurement result of the first acceleration sensor, and the management device is the sensor transmitted from the wireless communication device. The information is received and the received sensor information is processed.
  • the rotary machining system of the present disclosure includes a rotary machining tool and a management device, and the rotary machining tool includes a shaft portion, a blade mounting portion or a blade portion provided at an end portion of the shaft portion, and the shaft portion.
  • the support portion includes a support portion that supports the first acceleration sensor, and the support portion includes a plane in which the first measurement direction of the first acceleration sensor is normal to the rotation axis of the shaft portion, and each of the rotation axes.
  • the management device includes a wireless communication device that supports the first acceleration sensor so as to be inclined with respect to the first acceleration sensor, and further transmits sensor information indicating a measurement result of the first acceleration sensor. Receives the sensor information transmitted from the wireless communication device and processes the received sensor information.
  • FIG. 1 is a side view showing a configuration of a rotary machining tool according to the first embodiment of the present disclosure.
  • FIG. 2 is a cross-sectional view schematically showing the correspondence relationship between the centrifugal acceleration generated in the rotary machining tool and the measurement direction of the acceleration sensor according to the first embodiment of the present disclosure.
  • FIG. 3 is a diagram showing a correspondence relationship between the centrifugal acceleration generated in the rotary machining tool and the measurement direction of the acceleration sensor according to the first embodiment of the present disclosure.
  • FIG. 4 is a diagram showing an example of the correspondence relationship between the centrifugal acceleration generated in the rotary machining tool and the rotation speed of the rotary machining tool according to the first embodiment of the present disclosure.
  • FIG. 1 is a side view showing a configuration of a rotary machining tool according to the first embodiment of the present disclosure.
  • FIG. 2 is a cross-sectional view schematically showing the correspondence relationship between the centrifugal acceleration generated in the rotary machining tool and the measurement direction of the acceleration
  • FIG. 5 is an arrow view showing the configuration of the rotary machining tool according to the first embodiment of the present disclosure.
  • FIG. 6 is a cross-sectional view schematically showing the configuration of a support portion in the rotary machining tool according to the first embodiment of the present disclosure.
  • FIG. 7 is a diagram showing a configuration of a rotary machining tool according to the first embodiment of the present disclosure.
  • FIG. 8 is a diagram showing a configuration of a rotary processing system according to the first embodiment of the present disclosure.
  • FIG. 9 is a side view showing another example of the configuration of the rotary machining tool according to the first embodiment of the present disclosure.
  • FIG. 10 is a side view showing another example of the configuration of the rotary machining tool according to the first embodiment of the present disclosure.
  • FIG. 10 is a side view showing another example of the configuration of the rotary machining tool according to the first embodiment of the present disclosure.
  • FIG. 11 is a side view showing the configuration of the rotary machining tool according to the second embodiment of the present disclosure.
  • FIG. 12 is a plan view showing a configuration of a support portion in the rotary machining tool according to the second embodiment of the present disclosure.
  • FIG. 13 is a partial cross-sectional view showing a modification 1 of the rotary machining tool according to the second embodiment of the present disclosure.
  • FIG. 14 is a block diagram showing a configuration of a control unit in the first modification of the rotary machining tool according to the second embodiment of the present disclosure.
  • FIG. 15 is a flowchart defining the processing procedure of the control unit in the first modification of the second embodiment of the present disclosure.
  • FIG. 16 is a side view showing the configuration of the rotary machining tool according to the third embodiment of the present disclosure.
  • FIG. 17 is a cross-sectional view schematically showing the configuration of the rotary machining tool according to the third embodiment of the present disclosure.
  • FIG. 18 is a diagram showing a configuration of a rotary machining tool according to a third embodiment of the present disclosure.
  • FIG. 19 is a diagram showing a configuration of a rotary processing system according to a third embodiment of the present disclosure.
  • FIG. 20 is a partial cross-sectional view showing a modification 1 of the rotary machining tool according to the third embodiment of the present disclosure.
  • FIG. 21 is a cross-sectional view schematically showing a modified example 1 of the rotary machining tool according to the third embodiment of the present disclosure.
  • FIG. 22 is a diagram showing a configuration of a rotary machining tool according to a first modification of the third embodiment of the present disclosure.
  • FIG. 23 is a diagram showing a configuration of a rotary processing system according to a third embodiment of the present disclosure.
  • FIG. 24 is a side view showing the configuration of the rotary machining tool according to the fourth embodiment of the present disclosure.
  • FIG. 25 is a perspective view showing the configuration of an acceleration sensor in the rotary machining tool according to the fourth embodiment of the present disclosure.
  • FIG. 26 is a cross-sectional view schematically showing the configuration of the rotary machining tool according to the fourth embodiment of the present disclosure.
  • FIG. 27 is a cross-sectional view of the rotary machining tool according to the fourth embodiment of the present disclosure, which is cut in a plane passing through the rotary axis and viewed from the B direction.
  • FIG. 28 is a partial cross-sectional view showing a modification 1 of the rotary machining tool according to the fourth embodiment of the present disclosure.
  • FIG. 29 is a side view showing the configuration of the rotary machining tool according to the fifth embodiment of the present disclosure.
  • FIG. 30 is a cross-sectional view schematically showing the configuration of the rotary machining tool according to the fifth embodiment of the present disclosure.
  • FIG. 31 is a side view showing the configuration of the rotary machining tool according to the sixth embodiment of the present disclosure.
  • FIG. 32 is a cross-sectional view schematically showing the configuration of the rotary machining tool according to the sixth embodiment of the present disclosure.
  • FIG. 33 is a cross-sectional view of the rotary machining tool according to the sixth embodiment of the present disclosure, which is cut in a plane passing through the rotary axis and viewed from the B direction.
  • FIG. 34 is a diagram showing an example of the correspondence relationship between the centrifugal acceleration generated in the rotary machining tool and the rotation speed of the rotary machining tool according to the sixth embodiment of the present disclosure.
  • FIG. 35 is a partial cross-sectional view showing a modification 1 of the rotary machining tool according to the sixth embodiment of the present disclosure.
  • the present disclosure has been made to solve the above-mentioned problems, and an object thereof is a rotary machining tool and a rotary machine capable of measuring centrifugal acceleration generated in a rotary machining tool beyond the limit of the measurement range of an acceleration sensor. It is to provide a processing system.
  • the rotary machining tool includes a shaft portion, a blade mounting portion or a blade portion provided at an end portion of the shaft portion, and a first acceleration sensor attached to the shaft portion.
  • the first acceleration sensor measures acceleration in a first measurement direction that is inclined with respect to each of a plane having a rotation axis of the shaft portion as a normal line and each of the rotation axes.
  • the sensitivity of the first acceleration sensor in the measurement direction to the centrifugal acceleration can be lowered by the configuration in which the measurement direction of the first acceleration sensor is deviated from the direction of the centrifugal acceleration generated by the rotation of the shaft portion. Therefore, it is possible to measure the centrifugal acceleration generated in the rotary machining tool beyond the limit of the measurement range of the acceleration sensor.
  • the rotary machining tool further includes an angle changing portion for changing the inclination angle in the first measurement direction.
  • the measurement range of the centrifugal acceleration can be changed according to the rotation speed of the shaft portion desired by the user, so that the centrifugal acceleration can be measured more reliably in the measurement range according to the user's request. Can be done.
  • the first acceleration sensor further measures the acceleration in the second measurement direction and the acceleration in the third measurement direction, and the first measurement direction, the second measurement direction, and the said.
  • the third measurement direction is three-dimensionally orthogonal to each other, the second measurement direction is inclined with respect to each of the plane and the rotation axis, and the third measurement direction is along the plane.
  • the direction is along a direction orthogonal to the straight line connecting the first acceleration sensor and the rotation axis.
  • one acceleration sensor that measures acceleration in three measurement directions can be used to measure centrifugal acceleration and acceleration such as vibration associated with cutting, so that more diverse accelerations can be obtained. Can be measured. Further, for example, a wide range of centrifugal accelerations can be measured by one acceleration sensor, and the number of acceleration sensors attached to the shaft portion can be reduced.
  • the rotary machining tool further includes an angle changing portion for changing the inclination angle in the first measurement direction and the inclination angle in the second measurement direction.
  • the measurement range of the centrifugal acceleration can be changed according to the rotation speed of the shaft portion desired by the user, so that the centrifugal acceleration can be measured more reliably in the measurement range according to the user's request. Can be done.
  • the first acceleration sensor is a sensor that measures acceleration in one direction
  • the rotary machining tool further includes a second acceleration sensor that is a sensor that measures acceleration in one direction.
  • the second acceleration sensor measures the acceleration in the fourth measurement direction
  • the fourth measurement direction is a direction along the plane, and the second acceleration sensor and the rotation axis are connected to each other. Along the direction orthogonal to the connecting straight line.
  • the first acceleration sensor can measure the centrifugal acceleration
  • the second acceleration sensor can measure the acceleration such as vibration caused by cutting, so that more various accelerations can be measured. ..
  • the rotary machining tool further includes a third acceleration sensor which is a sensor for measuring acceleration in one direction, and the third acceleration sensor measures acceleration in the fifth measurement direction.
  • the fifth measurement direction is along the plane and is perpendicular to the straight line connecting the first acceleration sensor and the rotation axis.
  • the centrifugal acceleration can be measured by the first acceleration sensor, and the acceleration such as vibration accompanying cutting can be measured by the third acceleration sensor, and more various accelerations can be measured. ..
  • the first acceleration sensor is a sensor that measures acceleration in three directions
  • the first acceleration sensor includes acceleration in the first measurement direction, acceleration in the second measurement direction, and The acceleration in the third measurement direction is measured, and the first measurement direction, the second measurement direction, and the third measurement direction are three-dimensionally orthogonal to each other, and the second measurement direction and the second measurement direction are measured.
  • the measurement direction of 3 is inclined with respect to each of the plane and the rotation axis, and each of the first measurement direction, the second measurement direction, and the third measurement direction is the first in the plane. At least two of the angles formed with respect to the straight line connecting the acceleration sensor and the rotation axis are different from each other.
  • one acceleration sensor can be used to measure centrifugal acceleration in at least two different measurement ranges.
  • a wide range of centrifugal acceleration can be measured by one acceleration sensor, and the number of accelerometers attached to the shaft portion can be reduced.
  • the rotary machining tool further includes an angle changing portion for changing the inclination angle in the first measurement direction, the inclination angle in the second measurement direction, and the inclination angle in the third measurement direction. Be prepared.
  • the measurement range of the centrifugal acceleration can be changed according to the rotation speed of the shaft portion desired by the user, so that the centrifugal acceleration can be measured more reliably in the measurement range according to the user's request. Can be done.
  • the angle changing portion includes the range of acceleration that can be measured by the first acceleration sensor, the distance between the first acceleration sensor and the rotation axis of the shaft portion, and the rotation of the shaft portion. The tilt angle is changed based on the number.
  • the acceleration generated in the acceleration sensor in the measurement direction can be reliably changed by the inclination angle so as not to exceed the measurable range of the acceleration sensor.
  • the angle ⁇ formed by the first measurement direction and the plane is greater than 0 ° and less than 90 °, and is not 45 °.
  • centrifugal acceleration in two different measurement ranges by using, for example, one acceleration sensor that measures acceleration in three measurement directions. This allows a wider range of centrifugal accelerations to be measured, for example with one accelerometer.
  • the angle ⁇ is 70 ° or more and less than 90 °.
  • the accelerometer can measure the centrifugal acceleration corresponding to a larger rotation speed than when the angle ⁇ is 0 °.
  • the angle ⁇ is 80 ° or more and less than 90 °.
  • the accelerometer can measure the centrifugal acceleration corresponding to a larger rotation speed than when the angle ⁇ is 70 ° or more and less than 90 °.
  • the angle changing portion is removable from the shaft portion.
  • the angle changing part can be attached and detached as needed, and the convenience of the user can be improved.
  • the rotary machining tool includes a shaft portion, a blade mounting portion or a blade portion provided at an end portion of the shaft portion, and a support for supporting the first acceleration sensor in the shaft portion.
  • the support portion is provided with a portion so that the first measurement direction of the first acceleration sensor is inclined with respect to each of the plane having the rotation axis of the shaft portion as a normal line and the rotation axis. Supports one accelerometer.
  • the sensitivity of the first acceleration sensor to the centrifugal acceleration in the measurement direction can be lowered by the configuration in which the measurement direction of the first acceleration sensor is deviated from the direction of the centrifugal acceleration generated in the rotation of the shaft portion. Therefore, it is possible to measure the centrifugal acceleration generated in the rotary machining tool beyond the limit of the measurement range of the acceleration sensor.
  • the rotary processing system further includes a wireless communication device that transmits sensor information indicating the measurement result of the first acceleration sensor.
  • the rotary processing tool according to one, and a management device that receives the sensor information transmitted from the wireless communication device and processes the received sensor information.
  • the sensitivity of the first acceleration sensor in the measurement direction to the centrifugal acceleration can be lowered by the configuration in which the measurement direction of the first acceleration sensor is deviated from the direction of the centrifugal acceleration generated by the rotation of the shaft portion. Therefore, it is possible to measure the centrifugal acceleration generated in the rotary machining tool beyond the limit of the measurement range of the acceleration sensor. Further, with the configuration for processing the measurement result of the first acceleration sensor, for example, it is possible to calculate the angular velocity and the rotation speed of the shaft portion, and to determine whether or not there is an abnormality in the blade mounting portion or the blade portion. .. That is, the user can grasp whether or not the rotary machining tool is in an appropriate state.
  • FIG. 1 is a side view showing a configuration of a rotary machining tool according to the first embodiment of the present disclosure.
  • the rotary machining tool 101 is, for example, an end mill used in a milling machine or the like, and is used for cutting an object to be cut made of metal or the like.
  • the rotary machining tool 101 includes a shank portion 11 which is an example of a shaft portion, a blade mounting portion 12, a blade portion (not shown), an acceleration sensor 14, and a support portion 16.
  • the support portion 16 is shown by a two-dot chain line which is an imaginary line.
  • the rotary machining tool 101 may be configured not to have a blade portion. Further, the blade portion may be integrally fixed to the blade mounting portion 12, or may be detachably attached to the blade mounting portion 12.
  • the base material of the shank portion 11 is made of, for example, cemented carbide for cutting tools or steel for dies.
  • the rotary machining tool according to the embodiment of the present disclosure solves such a problem by the following configuration.
  • FIG. 2 is a cross-sectional view schematically showing the correspondence relationship between the centrifugal acceleration generated in the rotary machining tool and the measurement direction of the acceleration sensor according to the first embodiment of the present disclosure. More specifically, FIG. 2 is a schematic cross-sectional view of the rotary machining tool 101 shown in FIG. 1 when cut in a plane passing through the rotary shaft 17 and the acceleration sensor 14 and viewed from the B direction.
  • the acceleration sensor 14 measures the acceleration in the first measurement direction 141 that is inclined with respect to each of the plane 18 having the rotation axis 17 of the shank portion 11 as the normal line and the rotation axis 17. That is, the acceleration sensor 14 has sensitivity in the first measurement direction 141.
  • the plane 18 and the support portion 16 are shown by an alternate long and short dash line which is an imaginary line.
  • the acceleration sensor 14 is a so-called uniaxial acceleration sensor that measures acceleration in one direction.
  • the acceleration sensor 14 includes, for example, a sensor element 27, a pedestal portion 28 that supports the sensor element 27, and a housing 29 that houses the sensor element 27 and the pedestal portion 28.
  • the acceleration sensor 14 is arranged so that the one direction is along the first measurement direction 141.
  • the one direction is, for example, a direction perpendicular to the surface on which the sensor element 27 is supported by the pedestal portion 28.
  • a centrifugal acceleration a is generated in the acceleration sensor 14.
  • the direction in which the centrifugal acceleration a is generated is along the plane 18.
  • the direction in which the centrifugal acceleration a is generated is parallel to the plane 18.
  • Centrifugal acceleration a [mm / s ⁇ 2] is expressed by the following equation (1).
  • d is the distance [mm] from the peripheral surface of the shank portion 11 to the sensor element in the acceleration sensor 14 in the radial direction of the shank portion 11. That is, (r + d) is the distance [mm] between the rotating shaft 17 of the shank portion 11 and the sensor element of the acceleration sensor 14.
  • the operator " ⁇ " represents a power.
  • FIG. 3 is a diagram showing a correspondence relationship between the centrifugal acceleration generated in the rotary machining tool and the measurement direction of the acceleration sensor according to the first embodiment of the present disclosure.
  • the first measurement direction 141 is inclined with respect to the plane 18 at an angle ⁇ (hereinafter, also referred to as an inclination angle ⁇ ). Specifically, the first measurement direction 141 is tilted at a tilt angle ⁇ with respect to the plane 18 on the plane 15 including the acceleration sensor 14 and the rotation axis 17.
  • ⁇ is a value larger than 0 ° and smaller than 90 °.
  • a centrifugal acceleration a1 having a size corresponding to the cosine of the centrifugal acceleration a is generated. That is, the centrifugal acceleration a1 [mm / s ⁇ 2] generated in the first measurement direction 141 is represented by the following equation (2).
  • the centrifugal acceleration a1 changes according to the inclination angle ⁇ formed by the first measurement direction 141 and the plane 18. Further, in the range where ⁇ is larger than 0 ° and smaller than 90 °, the centrifugal acceleration a1 is smaller than the centrifugal acceleration a. That is, as the inclination angle ⁇ increases, the centrifugal acceleration a1 decreases.
  • the sensitivity of the acceleration sensor 14 to the centrifugal acceleration a in the first measurement direction 141 can be changed. Specifically, by increasing the inclination angle ⁇ in a range larger than 0 ° and smaller than 90 °, the sensitivity of the acceleration sensor 14 to the centrifugal acceleration a in the first measurement direction 141 can be lowered.
  • FIG. 4 is a diagram showing an example of the correspondence relationship between the centrifugal acceleration generated in the rotary machining tool and the rotation speed of the rotary machining tool according to the first embodiment of the present disclosure.
  • the horizontal axis represents the rotation speed of the shank portion 11
  • the vertical axis represents the centrifugal acceleration generated in the shank portion 11.
  • the graphs g1, g2, and g3 show the correspondence between the centrifugal acceleration and the rotation speed when the inclination angles ⁇ are 0 °, 45 °, and 60 °, respectively.
  • the graphs g5, g6, and g7 show the correspondence between the centrifugal acceleration and the rotation speed when the inclination angles ⁇ are 70 °, 80 °, and 89 °, respectively.
  • the acceleration sensor 14 can accurately measure the centrifugal acceleration when the centrifugal acceleration is a value of 0 G to 200 G. Further, when the centrifugal acceleration exceeds 200 G, it becomes difficult for the acceleration sensor 14 to accurately measure the centrifugal acceleration.
  • the inclination of the graph decreases. That is, as the inclination angle ⁇ increases, the apparent sensitivity of the acceleration sensor 14 to the centrifugal acceleration a in the first measurement direction 141 decreases, and the acceleration sensor 14 can measure the centrifugal acceleration at a higher rotation speed. ..
  • the acceleration sensor 14 can measure the centrifugal acceleration up to nearly twice the rotation speed as compared with the case where the tilt angle ⁇ is 0 °. it can. Further, when the inclination angle ⁇ is 80 °, the acceleration sensor 14 can measure the centrifugal acceleration up to nearly three times the rotation speed as compared with the case where the inclination angle ⁇ is 0 °.
  • the centrifugal acceleration can be measured up to nearly four times the rotation speed as compared with the case where the inclination angle ⁇ is 0 °. Further, when the inclination angle ⁇ is 89 °, the centrifugal acceleration can be measured up to 8 times or more the rotation speed as compared with the case where the inclination angle ⁇ is 0 °.
  • the inclination angle ⁇ is preferably 70 ° or more and less than 90 °, and more preferably 80 ° or more and less than 90 °.
  • the acceleration sensor 14 can measure the centrifugal acceleration at a rotation speed of nearly twice or more as compared with the case where the tilt angle ⁇ is 0 °. .. Further, when the inclination angle ⁇ is 80 ° or more and less than 90 °, the acceleration sensor 14 can measure the centrifugal acceleration at a rotation speed of nearly three times or more as compared with the case where the inclination angle ⁇ is 0 °. ..
  • FIG. 5 is an arrow view showing the configuration of the rotary machining tool according to the first embodiment of the present disclosure.
  • FIG. 5 is an arrow view seen from the direction A in FIG.
  • the support portion 16 is shown by a two-dot chain line which is an imaginary line.
  • one acceleration sensor 14 is provided on or near the peripheral surface of the shank portion 11.
  • the acceleration sensor 14 may be provided at a position in contact with the peripheral surface of the shank portion 11, or may be provided at a position away from the peripheral surface of the shank portion 11.
  • the support portion 16 is a tubular body that supports the acceleration sensor 14.
  • the support portion 16 is a tubular body made of synthetic resin.
  • the support portion 16 is formed in a cylindrical shape, for example.
  • the acceleration sensor 14 is supported in a state of being embedded in the support portion 16.
  • the support portion 16 is configured to be divisible into two parts. Specifically, the support portion 16 includes a main body 161 and a connecting mechanism (not shown).
  • the main body 161 is formed in a tubular shape. Further, the main body 161 can be attached to the peripheral surface of the shank portion 11 so that the shank portion 11 can be inserted therethrough, and has an outer diameter larger than the diameter of the shank portion 11.
  • the acceleration sensor 14 is embedded in the main body 161.
  • the main body 161 is configured to be divisible into a plurality of parts on the plane 18.
  • the main body 161 is configured to be divisible into two portions, that is, two arc-shaped portions 161a and 161b forming a substantially semicircular shape when viewed from the A direction.
  • the arc-shaped portion 161a and the arc-shaped portion 161b are connected to each other by a connecting mechanism (not shown). Specifically, for example, the arcuate portion 161a and the arcuate portion 161b are connected by bolts and nuts.
  • the arc-shaped portion 161a and the arc-shaped portion 161b have dimensions such that they are closely fixed to the peripheral surface of the shank portion 11 in a state of being connected to each other.
  • the support portion 16 and the acceleration sensor 14 can be attached to the shank portion 11. Further, the support portion 16 and the acceleration sensor 14 can be removed from the shank portion 11 by disconnecting the arc-shaped portion 161a and the arc-shaped portion 161b by the connecting mechanism.
  • FIG. 6 is a cross-sectional view schematically showing the configuration of a support portion in the rotary machining tool according to the first embodiment of the present disclosure. Specifically, FIG. 6 is a partial cross-sectional view in the B direction in FIG.
  • the support portion 16 supports the acceleration sensor 14 at the shank portion 11. Specifically, the support portion 16 supports the acceleration sensor 14 so that the first measurement direction 141 of the acceleration sensor 14 is tilted with respect to the plane 18 and the rotation axis 17.
  • the acceleration sensor 14 is supported by the support portion 16 so that the first measurement direction 141 is tilted with respect to the plane 18 at an inclination angle ⁇ .
  • the support portion 16 is made of synthetic resin.
  • a liquid synthetic resin is injected into the mold, the injected synthetic resin is cured, and the mold is removed. It is composed of.
  • the acceleration sensor 14 By arranging the acceleration sensor 14 in the mold, the first measurement direction 141 is tilted with respect to the plane 18 at an inclination angle ⁇ .
  • FIG. 7 is a diagram showing a configuration of a rotary machining tool according to the first embodiment of the present disclosure.
  • FIG. 7 is a diagram showing a state in which the rotary machining tool is further equipped with a battery, a wireless communication device, and a housing in addition to the components shown in FIG.
  • the battery, the wireless communication device, and the housing are shown by an alternate long and short dash line, which is an imaginary line.
  • the rotary machining tool 101 further includes a battery 22, a wireless communication device 23, and a housing 24, in addition to the configuration shown in FIG.
  • the battery 22 is connected to the acceleration sensor 14 and the wireless communication device 23 via a power line (not shown).
  • the battery 22 supplies electric power to the acceleration sensor 14 and the wireless communication device 23 via the power line.
  • the power line is provided with a switch for switching the power supply on and off.
  • the wireless communication device 23 is connected to the acceleration sensor 14 via a signal line (not shown).
  • the acceleration sensor 14 outputs a measurement signal indicating the centrifugal acceleration generated in the acceleration sensor 14 to the wireless communication device 23 via a signal line.
  • the wireless communication device 23 When the wireless communication device 23 receives the measurement signal from the acceleration sensor 14, the wireless communication device 23 includes the measurement result indicated by the received measurement signal in the wireless signal and transmits it to an external management device such as a personal computer.
  • the management device for example, accumulates the received measurement results and analyzes the accumulated measurement results.
  • the management device is not limited to the analysis of the measurement result, and may perform other types of processing.
  • the housing 24 includes a bottom plate portion 25 and a side wall portion 26.
  • the housing 24 is fixed to, for example, the lower surface of the support portion 16.
  • the housing 24 accommodates the support portion 16, the battery 22, the wireless communication device 23, the power line and the signal line, specifically, the support portion 16 and the battery 22 and the like are covered from below and from the sides thereof. Holds the battery 22 and the wireless communication device 23.
  • the bottom plate portion 25 is formed in a disk shape, for example.
  • the bottom plate portion 25 is formed with a plurality of screw holes (not shown) at positions corresponding to the support portions 16. Further, a plurality of screw holes are also formed on the lower surface of the support portion 16.
  • the bottom plate portion 25 With the screw holes of the bottom plate portion 25 and the screw holes of the support portion 16 aligned, the bottom plate portion 25 is fixed to the support portion 16 by screwing screws into the screw holes of the bottom plate portion 25 and the support portion 16. can do.
  • the side wall portion 26 is formed in a cylindrical shape, for example. At the lower end of the side wall 26, a plurality of screw holes (not shown) are formed at positions corresponding to the peripheral edges of the bottom plate 25. Further, a plurality of screw holes are also formed on the peripheral edge of the bottom plate portion 25.
  • the side wall portion 26 is fixed to the bottom plate portion 25 by screwing screws into the screw holes of the bottom plate portion 25 and the side wall portion 26. can do.
  • FIG. 8 is a diagram showing a configuration of a rotary processing system according to the first embodiment of the present disclosure.
  • the rotary processing system 201 includes a rotary processing device 202 such as a milling machine and a management device 301.
  • the rotary processing device 202 includes a rotary processing tool 101, a drive unit, and a control unit that controls the drive unit.
  • the drive unit is a motor or the like that drives the rotary machining tool 101.
  • the control unit controls the rotation speed of the drive unit and the like.
  • the rotary machining tool 101 transmits a wireless signal including sensor information indicating the measurement result of the acceleration sensor 14.
  • the management device 301 receives a wireless signal including sensor information from the rotary processing tool 101, and processes the measurement result indicated by the received sensor information.
  • the management device 301 includes a wireless communication unit 31, a control unit 32, a storage unit 35, an operation input unit 36, and a display unit 33.
  • the wireless communication unit 31 wirelessly communicates with the wireless communication device 23 of the rotary processing tool 101. Specifically, the wireless communication unit 31 receives a wireless signal including sensor information from the wireless communication device 23 of the rotary processing tool 101, and stores the measurement result indicated by the sensor information included in the wireless signal in the storage unit 35. save.
  • the operation input unit 36 includes a user interface such as a keyboard and a mouse.
  • the operation input unit 36 receives instructions and data input from the user.
  • the storage unit 35 includes, for example, a storage device such as an HDD (Hard Disk Drive). Further, for example, the storage unit 35 may be a CD-ROM (Compact Disc Read Only Memory), a DVD-ROM (Digital York Disc Read Only Memory), or a BD-ROM (Blu-ray (registered trademark) Disc Read Memory). Includes auxiliary storage. Further, for example, the storage unit 35 includes a semiconductor memory such as a RAM (Random Access Memory) and a ROM (Read Only Memory).
  • the storage unit 35 stores programs and data for operating the control unit 32, measurement results received by the wireless communication unit 31 from the rotary machining tool 101, calculation results of the control unit 32, and the like.
  • the control unit 32 includes, for example, a CPU (Central Processing Unit).
  • the control unit 32 analyzes the measurement result of the acceleration sensor 14 stored in the storage unit 35, and stores the analysis result in the storage unit 35. Further, the control unit 32 controls each unit in the management device 301.
  • a CPU Central Processing Unit
  • the display unit 33 is, for example, a display.
  • the display unit 33 displays the calculation result of the control unit 32 stored in the storage unit 35.
  • the display unit 33 may be provided outside the management device 301.
  • the rotary processing system 201 when it is difficult to directly transmit and receive a wireless signal between the rotary processing device 202 and the management device 301 due to a long distance or the like, the rotary processing system 201 is located between the two.
  • a relay device may be provided.
  • the rotation processing device 202 transmits the wireless signal to the management device 301 via the relay device.
  • the shank portion 11 of the rotary processing tool 101 is fixed to, for example, the holding portion of the rotary processing device 202 that holds the shank portion 11.
  • the acceleration sensor 14 outputs a measurement signal indicating the centrifugal acceleration generated in the shank portion 11 to the wireless communication device 23.
  • the wireless communication device 23 includes the sensor information indicating the measurement signal received from the acceleration sensor 14 in the wireless signal and transmits it to the external management device 301.
  • the wireless communication unit 31 stores in the storage unit 35 the measurement result indicated by the sensor information included in the wireless signal received from the wireless communication device 23.
  • the storage unit 35 stores the measurement result received from the rotary machining tool 101 by the wireless communication unit 31.
  • the control unit 32 analyzes the measurement result stored in the storage unit 35 in response to an instruction input from the user via the operation input unit 36.
  • the control unit 32 receives the measurement result of the acceleration sensor 14 received from the wireless communication device 23 via the wireless communication unit 31, the inclination angle ⁇ in the first measurement direction 141, and the sensor element in the acceleration sensor 14. And the angular velocity ⁇ and the number of rotations n of the shank portion 11 are calculated based on the distance (r + d) between the rotation axes 17.
  • the control unit 32 may be configured to calculate either the angular velocity ⁇ or the rotation speed n. Further, the control unit 32 is not limited to the analysis of the measurement result, and may perform other types of processing.
  • the display unit 33 displays the calculation result of the control unit 32.
  • the angular velocity ⁇ and the rotation speed n displayed by the display unit 33 are utilized, for example, for the user to grasp whether or not the rotary machining tool 101 is in an appropriate state.
  • 9 and 10 are side views showing other examples of the configuration of the rotary machining tool according to the first embodiment of the present disclosure, respectively.
  • the example shown in FIG. 1 has a configuration in which the acceleration sensor 14 is attached to an end mill which is a kind of rolling tool, but the present invention is not limited to this.
  • the acceleration sensor 14 may be attached to a body portion 118, which is an example of a shaft portion in a drill 102, which is a type of rolling tool.
  • the acceleration sensor 14 may be attached to a boss portion 119 which is an example of a shaft portion in a milling cutter 103 which is a kind of rolling tool.
  • the shank portion 113 is connected to the end portion of the boss portion 119 opposite to the blade mounting portion 12.
  • the milling cutter 103 may not be provided with the shank portion 113.
  • the rotary machining tool 101 is attached to the shank portion 11, the blade mounting portion 12 or the blade portion provided at the end of the shank portion 11, and the shank portion 11.
  • the acceleration sensor 14 is provided.
  • the acceleration sensor 14 measures the acceleration in the first measurement direction 141 that is inclined with respect to each of the plane 18 having the rotation axis 17 of the shank portion 11 as the normal line and the rotation axis 17.
  • the configuration in which the first measurement direction 141 of the acceleration sensor 14 is deviated from the direction of the centrifugal acceleration generated in the rotation of the shank portion 11 reduces the sensitivity of the acceleration sensor 14 to the centrifugal acceleration in the first measurement direction 141. be able to.
  • the centrifugal acceleration generated in the rotary machining tool 101 can be measured beyond the limitation of the measurement range of the acceleration sensor 14.
  • the rotary processing tool 101 has a shank portion 11, a blade mounting portion 12 or a blade portion provided at an end portion of the shank portion 11, and an acceleration sensor 14 at the shank portion 11. It is provided with a support portion 16 for supporting.
  • the support portion 16 supports the acceleration sensor 14 so that the first measurement direction 141 of the acceleration sensor 14 is inclined with respect to each of the plane 18 and the rotation shaft 17 having the rotation shaft 17 of the shank portion 11 as a normal line. ..
  • the first measurement direction 141 of the acceleration sensor 14 is displaced from the direction of the centrifugal acceleration generated in the rotation of the shank portion 11 to centrifuge. It is possible to reduce the sensitivity of the acceleration sensor 14 to acceleration in the first measurement direction 141.
  • the centrifugal acceleration generated in the rotary machining tool 101 can be measured beyond the limitation of the measurement range of the acceleration sensor 14.
  • the rotary machining system 201 is a rotary machining tool 101 further including a wireless communication device 23 for transmitting sensor information indicating a measurement result of the acceleration sensor 14, and a wireless communication device 23. It is provided with a management device 301 that receives the transmitted sensor information and processes the received sensor information.
  • the configuration in which the first measurement direction 141 of the acceleration sensor 14 is deviated from the direction of the centrifugal acceleration generated in the rotation of the shank portion 11 reduces the sensitivity of the acceleration sensor 14 to the centrifugal acceleration in the first measurement direction 141. be able to.
  • the centrifugal acceleration generated in the rotary machining tool 101 can be measured beyond the limitation of the measurement range of the acceleration sensor 14.
  • the angular velocity ⁇ and the rotation speed n of the shank portion 11 can be calculated, for example, by the configuration for processing the measurement result of the acceleration sensor 14.
  • the user can grasp whether or not the rotary machining tool 101 is in an appropriate state.
  • the present embodiment relates to a rotary machining tool having a support portion different from that of the rotary machining tool 101 according to the first embodiment. Except for the contents described below, the same is true for the rotary machining tool 101 according to the first embodiment.
  • FIG. 11 is a side view showing the configuration of the rotary machining tool according to the second embodiment of the present disclosure.
  • the rotary machining tool 104 includes a support portion 162 instead of the support portion 16 as compared with the rotary machining tool 101 shown in FIG.
  • the support portion 162 has a function of changing the inclination angle of the acceleration sensor 14 in the measurement direction in addition to the function of supporting the acceleration sensor 14. That is, the support portion 162 also functions as an angle changing portion.
  • the acceleration sensor 14 is a so-called uniaxial acceleration sensor that measures acceleration in one direction.
  • the acceleration sensor 14 includes, for example, the sensor element 27 shown in FIG. 2, a pedestal portion 28 that supports the sensor element 27, and a housing 29 that houses the sensor element 27 and the pedestal portion 28.
  • the one direction is, for example, a direction perpendicular to the surface on which the sensor element 27 is supported by the pedestal portion 28.
  • the acceleration sensor 14 is supported by the support portion 162 so that the one direction is along the first measurement direction 141.
  • FIG. 12 is a plan view showing a configuration of a support portion in the rotary machining tool according to the second embodiment of the present disclosure.
  • FIG. 12 is an arrow view of the support portion in FIG. 11 as viewed from the A direction.
  • the support portion 162 is a tubular body that supports the acceleration sensor 14.
  • the support portion 162 is a tubular body made of synthetic resin or metal.
  • the support portion 162 is formed, for example, in the shape of a deformed octagonal cylinder.
  • the support portion 162 is formed with a through hole 163 through which the shank portion 11 is inserted.
  • the support portion 162 has eight side surfaces 1621-1628. Each side is flat.
  • the side surface 1621 and the side surface 1625 are located on opposite sides of each other through the through hole 163.
  • the side surface 1622 and the side surface 1626 are located on opposite sides of each other through the through hole 163.
  • the side surface 1623 and the side surface 1627 are located on opposite sides of each other through the through hole 163.
  • the side surface 1624 and the side surface 1628 are located opposite to each other through the through hole 163.
  • the side surface 1621 and the side surface 1625 have the same angle with respect to the plane 18.
  • the angle is, for example, 90 °.
  • the side surface 1622 and the side surface 1626 have the same angle with respect to the plane 18.
  • the angle is, for example, 85 °.
  • the side surface 1623 and the side surface 1627 have the same angle with respect to the plane 18.
  • the angle is, for example, 80 °.
  • the side surface 1624 and the side surface 1628 have the same angle with respect to the plane 18.
  • the angle is, for example, 70 °.
  • the support portion 162 is configured to be divisible into two parts. Specifically, the support portion 162 includes a main body 164 and a connecting mechanism (not shown).
  • the main body 164 is formed in a tubular shape. Specifically, a through hole 163 is formed in the main body 164. Further, the main body 164 can be attached to the peripheral surface of the shank portion 11 so that the shank portion 11 inserts the through hole 163, and has an outer diameter larger than the diameter of the shank portion 11.
  • the main body 164 is configured to be divisible into a plurality of parts on the plane 18.
  • the main body 164 is divisible into two portions, that is, two arc-shaped portions 164a and 164b which form a substantially semicircular shape when viewed from the A direction.
  • the arc-shaped portion 164a and the arc-shaped portion 164b are connected to each other by a connecting mechanism (not shown).
  • the through hole 163 is formed by connecting the arc-shaped portion 164a and the arc-shaped portion 164b.
  • the arcuate portion 164a and the arcuate portion 164b are connected by bolts and nuts.
  • the arc-shaped portion 164a and the arc-shaped portion 164b have dimensions such that they are closely fixed to the peripheral surface of the shank portion 11 in a state of being connected to each other.
  • the support portion 162 and the acceleration sensor 14 can be attached to the shank portion 11. Further, the support portion 162 and the acceleration sensor 14 can be removed from the shank portion 11 by disconnecting the arc-shaped portion 164a and the arc-shaped portion 164b by the connecting mechanism.
  • the user can select the side surface to be attached from the eight side surfaces 1621-1628.
  • the user selects a side surface such that the first measurement direction 141 of the acceleration sensor 14 is inclined with respect to the plane 18 at a target inclination angle ⁇ , and attaches the acceleration sensor 14 to the selected side surface.
  • the inclination angle ⁇ formed by the first measurement direction 141 of the acceleration sensor 14 with respect to the plane 18 can be changed.
  • the support portion 162 having the angle changing function can be attached to and detached from the shank portion 11.
  • the support portion 162 can be attached and detached as needed, and the convenience of the user can be enhanced.
  • the support portion 162 may have a configuration that cannot be removed from the shank portion 11.
  • FIG. 13 is a partial cross-sectional view showing a modification 1 of the rotary machining tool according to the second embodiment of the present disclosure.
  • the rotary machining tool 105 includes a support portion 165 instead of the support portion 16.
  • the support portion 165 has a function of changing the inclination angle ⁇ of the first measurement direction 141 of the acceleration sensor 14 in addition to the function of supporting the acceleration sensor 14. That is, the support portion 165 also functions as an angle changing portion.
  • the acceleration sensor 14 is a so-called uniaxial acceleration sensor that measures acceleration in one direction.
  • the acceleration sensor 14 includes, for example, the sensor element 27 shown in FIG. 2, a pedestal portion 28 that supports the sensor element 27, and a housing 29 that houses the sensor element 27 and the pedestal portion 28.
  • the one direction is, for example, a direction perpendicular to the installation surface, which is the surface on which the sensor element 27 is supported by the pedestal portion 28.
  • the acceleration sensor 14 is supported by the support portion 165 so that the one direction is along the first measurement direction 141.
  • the acceleration sensor 14 is supported by the support portion 165 so that the one direction is inclined with respect to the plane 18 at an inclination angle ⁇ . Specifically, for example, by tilting the installation surface of the acceleration sensor 14 with respect to the rotation axis 17 of the shank portion 11 at an angle ⁇ , the one direction is tilted with respect to the plane 18 at an inclination angle ⁇ .
  • the support portion 165 includes a pedestal portion 166 and an angle changing portion 167.
  • the pedestal portion 166 supports the acceleration sensor 14.
  • the acceleration sensor 14 is attached to the pedestal portion 166 by, for example, a fixing member such as a bolt and a nut.
  • FIG. 14 is a block diagram showing a configuration of a control unit in the first modification of the rotary machining tool according to the second embodiment of the present disclosure.
  • the angle changing portion 167 changes the posture of the pedestal portion 166.
  • the angle changing unit 167 includes, for example, a control unit 168, an actuator such as a motor, and a power conversion mechanism (not shown).
  • the power conversion mechanism converts the movement of the actuator into an operation of changing the inclination angle ⁇ a of the pedestal portion 166 with respect to the shank portion 11 shown in FIG.
  • the actuator may be a type of actuator other than the motor, such as a piezoelectric element.
  • the control unit 168 includes, for example, a receiving device, a transmitting device, a CPU, and a storage device such as an HDD. Further, the control unit 168 includes, for example, an auxiliary storage device such as a CD-ROM, and a semiconductor memory such as a RAM and a ROM.
  • the control unit 168 changes the inclination angle ⁇ a based on, for example, the range of centrifugal acceleration that can be measured by the acceleration sensor 14, the distance between the acceleration sensor 14 and the rotation axis 17 of the shank unit 11, and the rotation speed of the shank unit 11. , This changes the tilt angle ⁇ .
  • the control unit 168 has an inclination angle ⁇ a based on parameters other than the range of centrifugal acceleration that can be measured by the acceleration sensor 14, the distance between the acceleration sensor 14 and the rotation axis 17 of the shank unit 11, and the rotation speed of the shank unit 11. , And the inclination angle ⁇ may be changed accordingly.
  • the control unit 168 includes an acquisition unit 169, a processing unit 170, a storage unit 171 and a communication unit 172.
  • the acquisition unit 169 includes, for example, a receiving device.
  • the acquisition unit 169 acquires the information input by the user via the operation input unit, specifically, the rotation speed of the shank unit 11 desired by the user, and stores it in the storage unit 171.
  • the storage unit 171 includes, for example, a storage device such as an HDD. Further, for example, the storage unit 171 includes an auxiliary storage device such as a CD-ROM. Further, for example, the storage unit 171 includes a semiconductor memory such as a RAM and a ROM.
  • the storage unit 171 stores programs and data for operating the processing unit 170, information acquired by the acquisition unit 169 from the operation input unit, calculation results of the processing unit 170, and the like.
  • the range of centrifugal acceleration that can be measured by the acceleration sensor 14 and the distance between the acceleration sensor 14 and the rotation shaft 17 of the shank unit 11 are stored.
  • the distance is, for example, the distance between the sensor element in the acceleration sensor 14 and the rotating shaft 17.
  • the storage unit 171 stores the distance (r + d) between the sensor element in the acceleration sensor 14 and the rotation shaft 17 of the shank unit 11.
  • the storage unit 171 stores 200 G, which is the upper limit value of the centrifugal acceleration that can be measured by the acceleration sensor 14, and the centrifugal acceleration and the shank unit 11 generated in the acceleration sensor 14. The correspondence between the number of rotations and the tilt angle ⁇ is preserved.
  • the processing unit 170 includes, for example, a CPU.
  • the processing unit 170 obtains the inclination angle ⁇ based on the information acquired from the storage unit 171. Specifically, the processing unit 170 obtains the inclination angle ⁇ based on the upper limit value of the centrifugal acceleration that can be measured by the acceleration sensor 14 and the above-mentioned correspondence relationship, and stores it in the storage unit 171.
  • the communication unit 172 includes, for example, a transmission device.
  • the communication unit 172 transmits the angle information indicating the inclination angle ⁇ obtained by the processing unit 170 and stored in the storage unit 171 to the actuator.
  • the rotary machining tool 105 includes a computer including a part or all of the storage unit 171.
  • the arithmetic processing unit such as a CPU in the computer stores a program including a part or all of each step of the following sequence diagram or flowchart. Read from the memory of unit 171 and execute.
  • the program for this device can be installed externally.
  • the program of this device is distributed in a state of being stored in a recording medium.
  • FIG. 15 is a flowchart defining the processing procedure of the control unit in the first modification of the second embodiment of the present disclosure.
  • the processing unit 170 acquires a desired rotation speed of the shank unit 11 from the storage unit 171. Further, the processing unit 170 acquires the upper limit values of the distance (r + d) and the centrifugal acceleration from the storage unit 171 (step S101).
  • the processing unit 170 obtains the inclination angle ⁇ based on the information acquired from the storage unit 171. Specifically, referring to FIG. 4 again, for example, when the rotation speed of the shank portion 11 desired by the user is 10000 rpm and the inclination angle ⁇ is 85 ° (graph g7), the centrifugal acceleration is 200 G. Since it does not exceed, 85 ° is obtained as the inclination angle ⁇ (step S103).
  • the processing unit 170 calculates the tilt angle ⁇ a based on the correlation between the tilt angle ⁇ and the tilt angle ⁇ a and the tilt angle ⁇ being 85 °. Then, the processing unit 170 calculates the parameters of the actuator, for example, the rotation angle of the motor based on the calculated tilt angle ⁇ a (step S105).
  • the processing unit 170 outputs a control signal including the calculated rotation angle to the communication unit 172 (step S107).
  • the communication unit 172 transmits the control signal received from the processing unit 170 to the actuator (step S109).
  • the actuator operates based on the control signal received from the communication unit 172, and changes the posture of the pedestal unit 166.
  • the angle changing unit 167 may be configured to change the posture of the pedestal unit 166 by operating a button by the user, for example.
  • the rotary machining tool 101 may be provided with a button for designating the posture of the pedestal portion 166, that is, the inclination angle ⁇ a, or the inclination angle ⁇ .
  • the user specifies the tilt angle ⁇ a or the tilt angle ⁇ by operating a button, and changes ⁇ a or ⁇ to the specified tilt angle.
  • the rotary machining tool 105 includes an angle changing portion 167 that changes the inclination angle ⁇ in the first measurement direction 141.
  • the measurement range of the centrifugal acceleration can be changed according to the rotation speed of the shank portion 11 desired by the user, so that the centrifugal acceleration can be measured more reliably in the measurement range according to the user's request. be able to.
  • the angle changing portion 167 is the range of acceleration that can be measured by the acceleration sensor 14, the rotation shaft 17 of the acceleration sensor 14 and the shank portion 11.
  • the inclination angle ⁇ is changed based on the distance between them (r + d) and the rotation speed n of the shank portion 11.
  • the acceleration generated in the acceleration sensor 14 in the first measurement direction 141 can be reliably changed by the inclination angle ⁇ so as not to exceed the measurable range of the acceleration sensor 14.
  • the embodiment of the present disclosure relates to a rotary machining tool to which an acceleration sensor is added as compared with the rotary machining tool 101 according to the first embodiment. Except for the contents described below, the same is true for the rotary machining tool 101 according to the first embodiment.
  • FIG. 16 is a side view showing the configuration of the rotary machining tool according to the third embodiment of the present disclosure.
  • the rotary machining tool 106 further includes an acceleration sensor 142 as compared with the rotary machining tool 101 shown in FIG.
  • FIG. 17 is a cross-sectional view schematically showing the configuration of the rotary machining tool according to the third embodiment of the present disclosure. Specifically, FIG. 17 is a cross-sectional view of the rotary machining tool 106 in FIG. 16 cut in a plane 18 and viewed from the C direction.
  • the rotary machining tool 106 further includes an acceleration sensor 142 as compared with the rotary machining tool 101.
  • the acceleration sensor 142 measures the acceleration in the fourth measurement direction 143.
  • the fourth measurement direction 143 is a direction along the plane 18 and along a direction orthogonal to the straight line 144 connecting the acceleration sensor 142 and the rotation axis 17.
  • the acceleration sensor 142 is a so-called uniaxial acceleration sensor that measures acceleration in one direction.
  • the acceleration sensor 142 has, for example, a structure similar to that of the acceleration sensor 14 shown in FIG. That is, the acceleration sensor 142 includes, for example, the sensor element 27 shown in FIG. 2, the pedestal portion 28 that supports the sensor element 27, and the housing 29 that houses the sensor element 27 and the pedestal portion 28.
  • the one direction is, for example, a direction perpendicular to the installation surface, which is the surface on which the sensor element 27 is supported by the pedestal portion 28.
  • the acceleration sensor 142 is supported by the support portion 16 shown in FIG. 16, specifically, for example, the support portion 16 shown in FIG. 6 so that the one direction is along the fourth measurement direction 143.
  • the acceleration sensor 142 may be supported by the support portion 162 shown in FIG. 11 or the support portion 165 shown in FIG.
  • the fourth measurement direction 143 is the direction in which vibration is generated due to cutting by the rotary machining tool 106. Further, the fourth measurement direction 143 is a direction in which centrifugal acceleration does not occur. Therefore, the acceleration sensor 142 can measure the acceleration of vibration accompanying cutting, not the centrifugal acceleration, by measuring the acceleration in the fourth measurement direction 143.
  • the fourth measurement direction 143 is a direction in which vibration due to the damage is generated when the blade mounting portion 12 or the blade portion is damaged.
  • the acceleration sensor 142 measures the acceleration in the fourth measurement direction 143 to obtain not the centrifugal acceleration but the acceleration of vibration accompanying cutting and the blade mounting. It is possible to measure the combined amount with the acceleration due to the vibration caused by the damage caused to the portion 12 or the blade portion.
  • FIG. 18 is a diagram showing a configuration of a rotary machining tool according to a third embodiment of the present disclosure.
  • FIG. 18 is a diagram showing a state in which a rotary machining tool is further equipped with a battery, a wireless communication device, and a housing in addition to the components shown in FIG.
  • the battery, the wireless communication device, and the housing are shown by an alternate long and short dash line, which is an imaginary line.
  • the rotary machining tool 106 further includes a battery 22, a wireless communication device 23, and a housing 24, in addition to the configuration shown in FIG.
  • the wireless communication device 23 is connected to the acceleration sensor 14 and the acceleration sensor 142 via a signal line (not shown).
  • the acceleration sensor 14 outputs a measurement signal indicating the centrifugal acceleration generated in the acceleration sensor 14 to the wireless communication device 23 via a signal line.
  • the acceleration sensor 142 outputs a measurement signal indicating the acceleration generated by the acceleration sensor 142 to the wireless communication device 23 via the signal line.
  • the wireless communication device 23 When the wireless communication device 23 receives the measurement signals from the acceleration sensor 14 and the acceleration sensor 142, the wireless communication device 23 includes the measurement results indicated by the received measurement signals in the wireless signals and transmits the measurement results to an external management device such as a personal computer.
  • the management device for example, accumulates each received measurement result and processes each accumulated measurement result.
  • FIG. 19 is a diagram showing a configuration of a rotary processing system according to a third embodiment of the present disclosure.
  • the rotary processing system 203 includes a rotary processing device 204 such as a milling machine and a management device 302.
  • the rotary processing device 204 includes a rotary processing tool 106, a drive unit, and a control unit that controls the drive unit.
  • the drive unit is a motor or the like that drives the rotary machining tool 106.
  • the control unit controls the number of rotations of the drive unit and the like.
  • the management device 302 further includes a determination unit 34 as compared with the management device 301 in the rotary machining tool 101 according to the first embodiment.
  • the wireless communication unit 31 wirelessly communicates with the wireless communication device 23 of the rotary processing tool 106.
  • the storage unit 35 contains a program and data for operating the control unit 32 and the determination unit 34, a measurement result received by the wireless communication unit 31 from the rotary machining tool 106, a calculation result of the control unit 32, and a determination of the determination unit 34. Results etc. are saved.
  • the determination unit 34 determines whether or not there is an abnormality in the blade mounting portion 12 or the blade portion based on the measurement result of the acceleration sensor 142.
  • the determination unit 34 includes, for example, a CPU.
  • the determination unit 34 determines that the blade mounting portion 12 or the blade portion has an abnormality. Further, when the measurement result of the acceleration sensor 142 is less than the threshold value, the determination unit 34 determines that the blade mounting portion 12 or the blade portion is normal, and stores the determination result in the storage unit 35.
  • the display unit 33 displays the determination result of the determination unit 34 accumulated in the storage unit 35.
  • the acceleration sensor 14 is a sensor that measures acceleration in one direction.
  • the rotary machining tool 106 further includes an acceleration sensor 142 which is a sensor for measuring acceleration in one direction.
  • the acceleration sensor 142 measures the acceleration in the fourth measurement direction 143.
  • the fourth measurement direction 143 is a direction along the plane 18 and along a direction orthogonal to the straight line 144 connecting the acceleration sensor 142 and the rotation axis 17.
  • the acceleration sensor 14 can measure the centrifugal acceleration, and the acceleration sensor 142 can measure the acceleration such as vibration caused by cutting, so that more various accelerations can be measured.
  • the rotary machining system 203 is a rotary machining tool 106 further including a wireless communication device 23 for transmitting sensor information indicating a measurement result of the acceleration sensor 14, and a wireless communication device 23. It includes a management device 302 that receives the transmitted sensor information and processes the received sensor information.
  • the configuration in which the first measurement direction 141 of the acceleration sensor 14 is deviated from the direction of the centrifugal acceleration generated in the rotation of the shank portion 11 reduces the sensitivity of the acceleration sensor 14 to the centrifugal acceleration in the first measurement direction 141. be able to.
  • the centrifugal acceleration generated in the rotary machining tool 106 can be measured beyond the limitation of the measurement range of the acceleration sensor 14.
  • the user can grasp whether or not the rotary machining tool 106 is in an appropriate state.
  • FIG. 20 is a partial cross-sectional view showing a modification 1 of the rotary machining tool according to the third embodiment of the present disclosure.
  • the rotary machining tool 107 according to the first modification further includes an acceleration sensor 145.
  • the acceleration sensor 145 is a so-called uniaxial acceleration sensor that measures acceleration in one direction.
  • the acceleration sensor 145 has, for example, a structure similar to that of the acceleration sensor 14 shown in FIG. That is, the acceleration sensor 145 includes, for example, the sensor element 27 shown in FIG. 2, the pedestal portion 28 that supports the sensor element 27, and the housing 29 that houses the sensor element 27 and the pedestal portion 28.
  • the one direction is, for example, a direction perpendicular to the surface on which the sensor element 27 is supported by the pedestal portion 28.
  • FIG. 21 is a cross-sectional view schematically showing a modified example 1 of the rotary machining tool according to the third embodiment of the present disclosure. More specifically, FIG. 21 is a cross-sectional view of the rotary machining tool 107 in FIG. 20 cut in a plane 18 and viewed from the C direction.
  • the acceleration sensor 145 measures the acceleration in the fifth measurement direction 146.
  • the fifth measurement direction 146 is a direction along the plane 18 and along a direction orthogonal to the straight line 147 connecting the acceleration sensor 145 and the rotation axis 17.
  • the acceleration sensor 145 is supported by the support portion 16 shown in FIG. 20, specifically, for example, the support portion 16 shown in FIG. 6 so that the one direction is along the fifth measurement direction 146.
  • the acceleration sensor 145 may be supported by the support portion 162 shown in FIG. 11 or the support portion 165 shown in FIG.
  • the fifth measurement direction 146 is the direction in which vibration is generated due to cutting by the rotary machining tool 107. Further, the fifth measurement direction 146 is a direction in which centrifugal acceleration does not occur. Therefore, the acceleration sensor 145 can measure the acceleration of vibration accompanying cutting, not the centrifugal acceleration, by measuring the acceleration in the fifth measurement direction 146.
  • the fifth measurement direction 146 is a direction in which vibration due to the damage is generated when the blade mounting portion 12 or the blade portion is damaged.
  • the acceleration sensor 145 measures the acceleration in the fifth measurement direction 146 to measure the acceleration of vibration accompanying cutting and the blade mounting, instead of the centrifugal acceleration. It is possible to measure the combined amount with the acceleration due to the vibration caused by the damage caused to the portion 12 or the blade portion.
  • the abnormality of the blade mounting portion 12 or the blade portion can be further improved as compared with the rotary machining tool 106 according to the third embodiment. It can be detected accurately.
  • the position of the blade mounting portion 12 or the blade portion where the abnormality has occurred can be detected more accurately.
  • the torsional stress generated in the shank portion 11 can be calculated based on each measurement result.
  • FIG. 22 is a diagram showing the configuration of the rotary machining tool according to the first modification of the third embodiment of the present disclosure.
  • FIG. 22 is a diagram showing a state in which the rotary machining tool is further equipped with a battery, a wireless communication device, and a housing in addition to the components shown in FIG.
  • the battery, the wireless communication device, and the housing are shown by an alternate long and short dash line, which is an imaginary line.
  • the rotary machining tool 106 further includes a battery 22, a wireless communication device 23, and a housing 24, in addition to the configuration shown in FIG.
  • the wireless communication device 23 is connected to the acceleration sensor 14, the acceleration sensor 142, and the acceleration sensor 145 via a signal line (not shown).
  • the acceleration sensor 14 outputs a measurement signal indicating the acceleration generated by the acceleration sensor 14 to the wireless communication device 23 via a signal line.
  • the acceleration sensor 142 outputs a measurement signal indicating the acceleration generated by the acceleration sensor 142 to the wireless communication device 23 via a signal line.
  • the acceleration sensor 145 outputs a measurement signal indicating the acceleration generated by the acceleration sensor 145 to the wireless communication device 23 via a signal line.
  • the wireless communication device 23 When the wireless communication device 23 receives the measurement signals from the acceleration sensor 14, the acceleration sensor 142, and the acceleration sensor 145, the wireless communication device 23 includes the measurement result indicated by the received measurement signals in the wireless signal and transmits the measurement result to an external management device such as a personal computer.
  • the management device for example, accumulates the received measurement results and processes the accumulated measurement results.
  • FIG. 23 is a diagram showing a configuration of a rotary processing system according to a third embodiment of the present disclosure.
  • the rotary processing system 205 includes a rotary processing device 206 such as a milling machine and a management device 303.
  • the rotary processing device 206 includes a rotary processing tool 107, a drive unit, and a control unit that controls the drive unit.
  • the drive unit is a motor or the like that drives the rotary machining tool 107.
  • the control unit controls the rotation speed of the drive unit and the like.
  • the management device 303 further includes a determination unit 341 as compared with the management device 301 in the rotary machining tool according to the first embodiment.
  • the wireless communication unit 31 wirelessly communicates with the wireless communication device 23 of the rotary processing tool 107.
  • the storage unit 35 contains a program and data for operating the control unit 32 and the determination unit 341, a measurement result received by the wireless communication unit 31 from the rotary machining tool 107, a calculation result of the control unit 32, and a determination of the determination unit 341. Results etc. are saved.
  • the determination unit 341 determines whether or not there is an abnormality in the blade mounting portion 12 or the blade portion based on the measurement results of the acceleration sensor 142 and the acceleration sensor 145.
  • the determination unit 341 includes, for example, a CPU.
  • the determination unit 341 determines that the blade mounting portion 12 or the blade portion has an abnormality. Further, when the measurement results of the acceleration sensor 142 and the acceleration sensor 145 are less than the threshold value, the determination unit 341 determines that the blade mounting portion 12 or the blade portion is normal, and stores the determination result in the storage unit 35.
  • the display unit 33 displays the determination result of the determination unit 341 stored in the storage unit 35.
  • the rotary machining tool 107 is a sensor that measures acceleration in one direction in addition to the configuration of the rotary machining tool 106 shown in FIG.
  • the acceleration sensor 145 is provided.
  • the acceleration sensor 145 measures the acceleration in the fifth measurement direction 146.
  • the fifth measurement direction 146 is a direction along the plane 18 and along a direction orthogonal to the straight line 147 connecting the acceleration sensor 145 and the rotation axis 17.
  • the accelerometer 14 can measure the centrifugal acceleration, and the accelerometer 142 and the acceleration sensor 145 can measure the acceleration such as vibration accompanying cutting, and more various accelerations can be measured. ..
  • the present embodiment relates to a rotary machining tool having a different number of measurement directions from the acceleration sensor as compared with the rotary machining tool 101 according to the first embodiment. Except for the contents described below, the same is true for the rotary machining tool 101 according to the first embodiment.
  • FIG. 24 is a side view showing the configuration of the rotary machining tool according to the fourth embodiment of the present disclosure.
  • the rotary machining tool 108 includes an acceleration sensor 148 instead of the acceleration sensor 14 as compared with the rotary machining tool 101 shown in FIG.
  • FIG. 25 is a perspective view showing the configuration of an acceleration sensor in the rotary machining tool according to the fourth embodiment of the present disclosure.
  • the housing 291 is shown by a two-dot chain line which is an imaginary line.
  • FIG. 26 is a cross-sectional view schematically showing the configuration of the rotary machining tool according to the fourth embodiment of the present disclosure. Specifically, FIG. 26 is a cross-sectional view of a rotary machining tool cut in a plane having a rotation axis as a normal and viewed from the D direction shown in FIG. 24.
  • FIG. 27 is a cross-sectional view of the rotary machining tool according to the fourth embodiment of the present disclosure, cut in a plane passing through the rotary axis and viewed from the B direction shown in FIG. 24.
  • the acceleration sensor 148 is a so-called three-axis acceleration sensor that measures acceleration in three directions.
  • the acceleration sensor 148 includes, for example, a sensor element 271, a pedestal portion 281 that supports the sensor element 271, and a housing 291 that houses the sensor element 271 and the pedestal portion 281.
  • the three directions, specifically, the first direction X1, the second direction Y1 and the third direction Z1 shown in FIG. 25 are three-dimensionally orthogonal to each other, that is, form a three-dimensional orthogonal axis.
  • the first direction X1 is a direction perpendicular to the installation surface, which is the surface on which the sensor element 271 is supported by the pedestal portion 281.
  • the second direction Y1 and the third direction Z1 are on a plane parallel to the installation surface.
  • the acceleration sensor 148 is supported by the support portion 16 shown in FIG. 26, specifically, for example, the support portion 16 shown in FIG.
  • the acceleration sensor 148 may be supported by the support portion 162 shown in FIG. 11 or the support portion 165 shown in FIG.
  • the acceleration sensor 148 measures acceleration in three directions while the predetermined posture is maintained by the support portion 16 shown in FIG. 26.
  • the three directions that is, the first direction X1, the second direction Y1 and the third direction Z1 are the first measurement directions 1410 shown in FIGS. 26 and 27, respectively.
  • the acceleration in the first measurement direction 1410, the acceleration in the second measurement direction 149, and the acceleration in the third direction are measured. measure.
  • the first measurement direction 1410, the second measurement direction 149, and the third measurement direction 150 are three-dimensionally orthogonal to each other, that is, form a three-dimensional orthogonal axis.
  • the first measurement direction 1410 is inclined with respect to each of the plane 18 and the rotation axis 17.
  • the second measurement direction 149 is inclined with respect to each of the plane 18 and the rotation axis 17.
  • the third measurement direction 150 is a direction along the plane 18 and is along a direction orthogonal to the straight line 151 connecting the acceleration sensor 148 and the rotation axis 17.
  • the first measurement direction 1410 is a direction that goes diagonally upward to the right of the paper surface along the paper surface of FIG. 26.
  • the second measurement direction 149 is a direction diagonally downward to the right of the paper surface along the paper surface of FIG. 26.
  • the third measurement direction 150 is a direction perpendicular to the paper surface of FIG. 26 and a direction from the front side to the back side of the paper surface.
  • the first measurement direction 1410 is inclined with respect to the plane 18 at an inclination angle ⁇ . Specifically, the first measurement direction 1410 passes through the acceleration sensor 14 and is tilted at a tilt angle ⁇ with respect to the plane 18 on the plane 15 including the rotation axis 17.
  • the inclination angle ⁇ is a value larger than 0 ° and smaller than 90 °. Further, the inclination angle ⁇ may be 45 ° or not 45 °.
  • the second measurement direction 149 is inclined with respect to the plane 18 toward the side opposite to the first measurement direction 1410 at an inclination angle (90 ° - ⁇ ). Specifically, the second measurement direction 149 is inclined with respect to the plane 18 toward the side opposite to the first measurement direction 1410 at an inclination angle (90 ° ⁇ ).
  • the inclination angle ⁇ is a value larger than 0 ° and smaller than 90 °.
  • the sensitivity of the acceleration sensor 14 to the centrifugal acceleration a in the first measurement direction 1410 can be changed, and the sensitivity of the acceleration sensor 148 to the centrifugal acceleration a in the second measurement direction 149.
  • the sensitivity can be changed.
  • the tilt angle (90 ° ⁇ ) is 85 ° (graph g7)
  • the angle (90 ° ⁇ ) is 5 °
  • the inclination angle ⁇ is 80 ° (graph g6).
  • the tilt angle (90 ° - ⁇ ) is 10 ° and the tilt angle ⁇ is 70 ° (graph g5)
  • the tilt angle (90 ° - ⁇ ) is 20 ° and the tilt angle ⁇ is 60 °.
  • the tilt angle (90 ° ⁇ ) is 30 °.
  • the accelerometer 148 can measure the centrifugal acceleration in the range of 0G to 200G. That is, for example, when the inclination angle ⁇ is 85 ° (graph g7), the acceleration sensor 148 can measure from 0 rpm to about 4000 rpm in the first measurement direction 1410, and the second measurement direction 149. It is possible to measure from 0 rpm to about 14000 rpm.
  • the acceleration sensor 148 can exhibit high resolution in the range of 0 rpm to about 4000 rpm.
  • the measurement of the centrifugal acceleration in the low speed rotation range of 0 rpm to about 4000 rpm is carried out in the first measurement direction 1410, and the measurement of the centrifugal acceleration in the high speed rotation range of about 4000 rpm to about 14000 rpm is performed in the second measurement direction.
  • Centrifugal acceleration can be measured in a wide range of rotation speeds in two measurement directions, mainly in the measurement direction 149 of. Further, in the low speed rotation range, measurement can be performed with high resolution.
  • the acceleration sensor 148 measures the acceleration in the first measurement direction 1410, the acceleration in the second measurement direction 149, and the acceleration in the third measurement direction 150.
  • the first measurement direction 1410, the second measurement direction 149, and the third measurement direction 150 are three-dimensionally orthogonal to each other, that is, form a three-dimensional orthogonal axis.
  • the second measurement direction 149 is inclined with respect to each of the plane 18 and the rotation axis 17.
  • the third measurement direction 150 is a direction along the plane 18 and is along a direction orthogonal to the straight line 151 connecting the acceleration sensor 148 and the rotation axis 17.
  • one acceleration sensor 148 that measures acceleration in three measurement directions can be used to measure centrifugal acceleration and acceleration such as vibration associated with cutting, so that more diverse accelerations can be measured. Can be measured.
  • the number of acceleration sensors attached to the shank portion 11 can be reduced.
  • the inclination angle ⁇ formed by the first measurement direction 1410 and the plane 18 is larger than 0 ° and less than 90 °, and 45 °. Not.
  • the inclination angle ⁇ is 70 ° or more and less than 90 °.
  • the acceleration sensor 148 can measure the centrifugal acceleration corresponding to a larger rotation speed than when the inclination angle ⁇ is 0 °.
  • the inclination angle ⁇ is 80 ° or more and less than 90 °.
  • the accelerometer 148 can measure the centrifugal acceleration corresponding to a larger rotation speed than when the inclination angle ⁇ is 70 ° or more and less than 90 °.
  • FIG. 28 is a partial cross-sectional view showing a modification 1 of the rotary machining tool according to the fourth embodiment of the present disclosure.
  • the rotary machining tool 109 includes a support portion 165 having an angle changing function as shown in FIG. 13 instead of the support portion 16.
  • the rotary machining tool 109 can change the inclination angle ⁇ a and change the inclination angle ⁇ by the angle change function of the support portion 165.
  • the rotary machining tool 109 in addition to the configuration of the rotary machining tool 108, the rotary machining tool 109 further has an inclination angle ⁇ in the first measurement direction 1410 and a second.
  • a support portion 165 for changing the inclination angle (90 ° - ⁇ ) of the measurement direction 149 of 2 is provided.
  • the measurement range of the centrifugal acceleration can be changed according to the rotation speed of the shank portion 11 desired by the user, so that the centrifugal acceleration can be measured more reliably in the measurement range according to the user's request. be able to.
  • the present embodiment relates to a rotary machining tool to which an acceleration sensor is added as compared with the rotary machining tool 108 according to the fourth embodiment. Except for the contents described below, the same is true for the rotary machining tool 108 according to the fourth embodiment.
  • FIG. 29 is a side view showing the configuration of the rotary machining tool according to the fifth embodiment of the present disclosure.
  • the rotary machining tool 110 further includes an acceleration sensor 142 as compared with the rotary machining tool 108 shown in FIG.
  • FIG. 30 is a cross-sectional view schematically showing the configuration of the rotary machining tool according to the fifth embodiment of the present disclosure. Specifically, FIG. 30 is a cross-sectional view of the rotary machining tool 110 in FIG. 29 cut in a plane 18 and viewed from the C direction.
  • the acceleration sensor 142 measures the acceleration in the fourth measurement direction 143.
  • the fourth measurement direction 143 is a direction along the plane 18 and along a direction orthogonal to the straight line 144 connecting the acceleration sensor 142 and the rotation axis 17.
  • the acceleration sensor 142 is a so-called uniaxial acceleration sensor that measures acceleration in one direction.
  • the acceleration sensor 142 has, for example, a structure similar to that of the acceleration sensor 14 shown in FIG. That is, the acceleration sensor 142 includes, for example, the sensor element 27 shown in FIG. 2, the pedestal portion 28 that supports the sensor element 27, and the housing 29 that houses the sensor element 27 and the pedestal portion 28.
  • the one direction is, for example, a direction perpendicular to the installation surface, which is the surface on which the sensor element 27 is supported by the pedestal portion 28.
  • the acceleration sensor 142 is supported by the support portion 16 shown in FIG. 16, specifically, for example, the support portion 16 shown in FIG. 6 so that the one direction is along the fourth measurement direction 143.
  • the acceleration sensor 142 may be supported by the support portion 162 shown in FIG. 11 or the support portion 165 shown in FIG.
  • the fourth measurement direction 143 is the direction in which vibration is generated due to cutting by the rotary machining tool 110. Further, the fourth measurement direction 143 is a direction in which centrifugal acceleration does not occur. Therefore, the acceleration sensor 142 can measure the acceleration of vibration accompanying cutting, not the centrifugal acceleration, by measuring the acceleration in the fourth measurement direction 143.
  • the fourth measurement direction 143 is a direction in which vibration due to the damage is generated when the blade mounting portion 12 or the blade portion is damaged.
  • the acceleration sensor 142 measures the acceleration in the fourth measurement direction 143 to obtain not the centrifugal acceleration but the acceleration of vibration accompanying cutting and the blade mounting. It is possible to measure the combined amount with the acceleration due to the vibration caused by the damage caused to the portion 12 or the blade portion.
  • the present embodiment relates to a rotary machining tool having a third measurement direction different from that of the rotary machining tool 108 according to the fourth embodiment. Except for the contents described below, the same is true for the rotary machining tool 108 according to the fourth embodiment.
  • FIG. 31 is a side view showing the configuration of the rotary machining tool according to the sixth embodiment of the present disclosure.
  • the rotary machining tool 111 includes an acceleration sensor 152 instead of the acceleration sensor 148 in the rotary machining tool 108 according to the fourth embodiment.
  • FIG. 32 is a cross-sectional view schematically showing the configuration of the rotary machining tool according to the sixth embodiment of the present disclosure.
  • FIG. 32 is a cross-sectional view of a rotary machining tool cut in a plane having a rotation axis as a normal and viewed from the D direction.
  • FIG. 33 is a cross-sectional view of the rotary machining tool according to the sixth embodiment of the present disclosure, which is cut in a plane passing through the rotary axis and viewed from the B direction.
  • the acceleration sensor 152 is a so-called three-axis acceleration sensor that measures acceleration in three directions.
  • the acceleration sensor 152 has, for example, the same structure as the acceleration sensor 148 shown in FIG. 25.
  • the acceleration sensor 152 is supported by the support portion 16 shown in FIG. 32, specifically, for example, the support portion 16 shown in FIG.
  • the acceleration sensor 152 may be supported by the support portion 162 shown in FIG. 11 or the support portion 165 shown in FIG.
  • the acceleration sensor 152 measures acceleration in three directions while the support portion 16 maintains a predetermined posture.
  • the acceleration sensor 152 has a state in which the postures of the acceleration sensor 152 are adjusted so that the three directions are along the first measurement direction 1411, the second measurement direction 1490, and the third measurement direction 1500, respectively.
  • the acceleration of the first measurement direction 1411, the acceleration of the second measurement direction 1490, and the acceleration of the third measurement direction 1500 are measured.
  • the first measurement direction 1411, the second measurement direction 1490, and the third measurement direction 1500 are three-dimensionally orthogonal to each other, that is, form a three-dimensional orthogonal axis.
  • the first measurement direction 1411, the second measurement direction 1490, and the third measurement direction 1500 are inclined with respect to each of the plane 18 and the rotation axis 17.
  • the first measurement direction 1411, the second measurement direction 1490, and the third measurement direction 1500 are directions that intersect the paper surface of FIG. 32 and intersect the paper surface of FIG. 33. Further, the first measurement direction 1411 is a direction diagonally upward to the right of the paper surface of FIG. 32. The second measurement direction 1490 and the third measurement direction 1500 are directions diagonally downward to the right of the paper surface of FIG. 32.
  • the angles ⁇ 3 are different from each other.
  • any two of the inclination angle ⁇ 1, the inclination angle ⁇ 2, and the inclination angle ⁇ 3 may be the same as each other.
  • FIG. 34 is a diagram showing an example of the correspondence relationship between the centrifugal acceleration generated in the rotary machining tool and the rotation speed of the rotary machining tool according to the sixth embodiment of the present disclosure.
  • the horizontal axis represents the rotation speed of the shank portion 11
  • the vertical axis represents the centrifugal acceleration generated in the shank portion 11.
  • the graphs g9, g10, and g11 show the correspondence between the centrifugal acceleration and the rotation speed when the inclination angles ⁇ are ⁇ 1, ⁇ 2, and ⁇ 3, respectively.
  • the relationship between ⁇ 1, ⁇ 2, and ⁇ 3 is “ ⁇ 1 ⁇ 2 ⁇ 3”.
  • the acceleration sensor 152 can accurately measure the centrifugal acceleration when the centrifugal acceleration is a value of 0 G to 200 G, and when the centrifugal acceleration exceeds 200 G, it becomes difficult to accurately measure the centrifugal acceleration. It shall be.
  • the acceleration sensor 152 can measure the centrifugal acceleration up to twice or more the rotation speed as compared with the case where the tilt angle ⁇ is ⁇ 1. Further, the acceleration sensor 152 can measure the centrifugal acceleration up to a rotation speed nearly three times higher when the tilt angle ⁇ is ⁇ 3 than when the tilt angle ⁇ is ⁇ 1.
  • the tilt angle ⁇ 1, the tilt angle ⁇ 2, and the tilt angle ⁇ 3 may be the same as each other.
  • FIG. 35 is a partial cross-sectional view showing a modification 1 of the rotary machining tool according to the sixth embodiment of the present disclosure.
  • the rotary machining tool 112 includes a support portion 165 having an angle changing function as shown in FIG. 13 instead of the support portion 16.
  • the rotary machining tool 112 can change the inclination angle ⁇ a and change the inclination angles ⁇ 1 to ⁇ 3 by the angle changing function of the support portion 165.
  • the rotary machining tool 112 is the configuration of the rotary machining tool 111 according to the sixth embodiment of the present disclosure, and further. It is provided with an angle changing unit 167 that changes the inclination angle ⁇ 1 of the measurement direction 1411 of 1, the inclination angle ⁇ 2 of the second measurement direction 1490, and the inclination angle ⁇ 3 of the third measurement direction 1500.
  • the measurement range of the centrifugal acceleration can be changed according to the rotation speed of the shank portion 11 desired by the user, so that the centrifugal acceleration can be measured more reliably in the measurement range according to the user's request. be able to.
  • Appendix 1 It is a rotary processing device Rotating tools and Equipped with a management device The rotary machining tool Shaft part and With the blade mounting portion or the blade portion provided at the end of the shaft portion, Including a first acceleration sensor attached to the shaft portion The first acceleration sensor measures the acceleration in the first measurement direction that is inclined with respect to each of the plane having the rotation axis of the shaft portion as a normal and the rotation axis.
  • the management device is At least one of the angular velocity and the rotation speed of the shaft portion is calculated based on the measurement result of the acceleration sensor, the inclination angle in the first measurement direction, and the distance between the first acceleration sensor and the rotation axis.
  • Control unit and A rotary processing apparatus including a display unit that displays a calculation result of the control unit.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Machine Tool Sensing Apparatuses (AREA)

Abstract

Cette invention concerne une machine d'usinage rotative, comprenant : une partie arbre ; une partie de fixation de lame ou une partie lame disposée sur une partie d'extrémité de la partie arbre ; et un premier capteur d'accélération fixé à la partie arbre, le premier capteur d'accélération mesurant un taux d'accélération dans une première direction de mesure qui est inclinée par rapport à chacun des éléments suivants : un plan ayant une ligne normale correspondant à un axe de rotation de la partie arbre ; et l'axe de rotation.
PCT/JP2019/034242 2019-08-30 2019-08-30 Machine d'usinage rotative et système d'usinage rotatif WO2021038859A1 (fr)

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JP2021541943A JP7264255B2 (ja) 2019-08-30 2019-08-30 回転加工工具および回転加工システム
PCT/JP2019/034242 WO2021038859A1 (fr) 2019-08-30 2019-08-30 Machine d'usinage rotative et système d'usinage rotatif

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Citations (7)

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Publication number Priority date Publication date Assignee Title
JPS63245358A (ja) * 1987-03-30 1988-10-12 Toyoda Mach Works Ltd 工具ホルダ
JP2008524006A (ja) * 2004-12-20 2008-07-10 レニショウ パブリック リミテッド カンパニー 機械及び制御システム
JP2009002735A (ja) * 2007-06-20 2009-01-08 Epson Toyocom Corp 角速度検出装置
JP2010268732A (ja) * 2009-05-21 2010-12-02 Yamabiko Corp 安全装置付き刈払機
JP2011518048A (ja) * 2008-03-17 2011-06-23 エイ． サプロック，クリストファー スマートマシニングシステム及びそれに用いられるスマートツールホルダー
JP2014172107A (ja) * 2013-03-07 2014-09-22 Mitsubishi Heavy Ind Ltd 工作機械の異常診断装置及び異常診断方法
JP2016043443A (ja) * 2014-08-21 2016-04-04 オークマ株式会社 回転速度表示方法

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110103076B (zh) * 2019-05-08 2021-02-02 北京理工大学 一种深孔镗削加工状态实时监测的智能镗杆***

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63245358A (ja) * 1987-03-30 1988-10-12 Toyoda Mach Works Ltd 工具ホルダ
JP2008524006A (ja) * 2004-12-20 2008-07-10 レニショウ パブリック リミテッド カンパニー 機械及び制御システム
JP2009002735A (ja) * 2007-06-20 2009-01-08 Epson Toyocom Corp 角速度検出装置
JP2011518048A (ja) * 2008-03-17 2011-06-23 エイ． サプロック，クリストファー スマートマシニングシステム及びそれに用いられるスマートツールホルダー
JP2010268732A (ja) * 2009-05-21 2010-12-02 Yamabiko Corp 安全装置付き刈払機
JP2014172107A (ja) * 2013-03-07 2014-09-22 Mitsubishi Heavy Ind Ltd 工作機械の異常診断装置及び異常診断方法
JP2016043443A (ja) * 2014-08-21 2016-04-04 オークマ株式会社 回転速度表示方法

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