CN212843464U - Mechanism for eliminating spindle error and detecting shaft part jumping - Google Patents
Mechanism for eliminating spindle error and detecting shaft part jumping Download PDFInfo
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- CN212843464U CN212843464U CN202021529957.2U CN202021529957U CN212843464U CN 212843464 U CN212843464 U CN 212843464U CN 202021529957 U CN202021529957 U CN 202021529957U CN 212843464 U CN212843464 U CN 212843464U
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Abstract
The utility model discloses a mechanism for eliminating main shaft error and carrying out axle type part detection of beating. The two supporting mechanisms are fixed on the machine base through screws, and workpieces are placed on the two supporting mechanisms; the driven side clamping driving parts are respectively positioned at the left side and the right side of the workpiece and are fixed on the machine base; the clamping driving part at the driving and driven side is pushed out and clamped at the two ends of the workpiece through the rotating center, so that the workpiece is clamped and is driven to rotate the axis of the workpiece to do rotating motion; the center is driven by a servo motor to make the workpiece rotate around the axis of the center; the jumping detection mechanism is arranged beside the side of the workpiece and detects the surface jumping of the workpiece during rotary motion. The utility model provides a gyration of axle type part is beated and is detected the precision. On the premise of not reducing the production efficiency of the equipment and not sacrificing the detection precision, the requirements of the equipment tool clamp and the production and use cost are reduced.
Description
Technical Field
The utility model relates to an axle type part rotation detection mechanism especially relates to a mechanical structure who eliminates top/main shaft in the testing process and beats the influence to the test.
Background
The shaft parts have jumping requirements in the process of assembling with other parts. The shaft parts generally need to be subjected to rough turning, finish turning, grinding and other steps, and the process steps also have jumping requirements on the parts to be processed. The straightening equipment is automatic equipment for automatically straightening shaft parts to ensure that the runout of the shaft parts meets the technical requirements. The general action flow of the straightening equipment is to perform rotation run-out detection on a workpiece, then perform pressure cold/flame heat straightening, and repeat the steps until the final recheck meets the qualified requirements.
The jump detection link is a key step of production and operation of the straightening equipment, and the precision of the jump detection link often directly determines the precision grade of the equipment.
And the higher the equipment detection precision is, the internal qualification requirement of the equipment retest can be reduced to a certain extent. The straightening equipment mostly uses a rotating center, clamps the workpiece to enable the head of the rotating center to be matched with center holes at two ends of the workpiece, and then performs rotation detection. The jumping qualification requirement of common small and medium-sized shaft parts is 20-30 microns, and parts of workpieces with strict requirements can reach 5-10 microns. The jumping detection precision value at least needs 1/4-1/5 meeting the qualified requirement of jumping, namely, for general small and medium-sized shaft parts, the size needs to reach 5 micrometers.
In order to achieve the accuracy, a rotating center (jumping by 3-5 microns) with high accuracy is often selected for straightening equipment, and is periodically overhauled, calibrated and replaced, and meanwhile, a high-accuracy displacement sensor is selected for jumping detection. And some manufacturers add two sets of sensors specially used for detecting the tip/clamp jumping and compensating and correcting the tip/clamp jumping. In these ways, a level of jitter detection accuracy of around 3 microns can be achieved. However, the price of the high-precision tip and sensor measuring mechanism is often high, and frequent replacement can cause the use and maintenance cost of the equipment to be high. If the frock clamp is not overhauled and replaced for a long time, the precision of the equipment is influenced to a great extent. And it is also difficult to control the detection accuracy to better than 1 micron using the above device.
SUMMERY OF THE UTILITY MODEL
In order to solve the problem that exists among the background art, the utility model provides a mechanism for eliminating the main shaft error and carrying out axle type part detection of beating. The utility model discloses an increase complementary unit and with automatic re-setting rotary centre/measurement anchor clamps, realized that the work piece gyration detects the precision height, require relatively lower effect to measurement anchor clamps. The method is beneficial to improving the precision of the straightening equipment and reducing the generation and use cost of the straightening equipment.
The utility model adopts the technical proposal that:
the utility model comprises a supporting mechanism, a driving side clamping driving part, a driven side clamping driving part, a jumping detection mechanism and a workpiece; the two supporting mechanisms are fixed on the machine base through screws, and workpieces are placed on the two supporting mechanisms; the driving side clamping driving part and the driven side clamping driving part are respectively positioned at the left side and the right side of the workpiece and are fixed on the machine base; the driving side clamping driving part and the driven side clamping driving part are pushed out and clamped at two ends of a workpiece through respective rotating centers, so that the workpiece is clamped and is driven to rotate the axis of the workpiece to do rotating motion; the center is driven by a servo motor to make the workpiece rotate around the axis of the center; the jumping detection mechanism is arranged beside the side of the workpiece and detects the surface jumping of the workpiece during rotary motion.
The driving side clamping driving part comprises a driving side clamping mechanism base, a driving side clamping cylinder, a driving side linear bearing, a driving side rotating centre and a servo motor; the driving side clamping mechanism base is arranged on the base, the horizontal plate is fixedly connected to the rotating shaft, a driving side linear bearing is arranged on the driving side clamping mechanism base, the driving side rotating center comprises a shaft part and a tip part which are coaxially and fixedly connected, the shaft part of the driving side rotating center is sleeved in the driving side linear bearing, and the shaft part of the driving side rotating center penetrates through the driving side linear bearing and then is connected with the output end of the driving side clamping cylinder; the periphery of the tip of the driving side rotating centre is processed into a gear ring structure, and the end surface of the tip of the driving side rotating centre is provided with a conical centre connected to the center of the end surface of the workpiece; a servo motor is further mounted on the base of the driving side clamping mechanism, an output shaft of the servo motor is coaxially connected with a gear, and the gear is meshed with a gear ring of the driving side rotating center to form a driving gear pair; and a driving side origin sensor is arranged on a driving side clamping mechanism base at the side of the gear.
The driven side clamping driving part comprises a driven side clamping mechanism base, a driven side clamping cylinder, a driven side linear bearing, a driven side rotating centre and a rotary encoder; the driven side clamping mechanism base is arranged on the base, the horizontal plate is fixedly connected to the rotating shaft, a driven side linear bearing is arranged on the driven side clamping mechanism base, the driven side rotating center comprises a shaft part and a tip part which are coaxially and fixedly connected, the shaft part of the driven side rotating center is sleeved in the driven side linear bearing, and the shaft part of the driven side rotating center penetrates through the driven side linear bearing and then is connected with the output end of the driven side clamping cylinder; the periphery of the tip of the driven side rotating center is processed into a gear ring structure, and the end surface of the tip of the driven side rotating center is provided with a conical center connected to the center of the end surface of the workpiece; the base of the driven side clamping mechanism is also provided with a rotary encoder, an input shaft of the rotary encoder is coaxially connected with a gear, and the gear is meshed with a gear ring of the driven side rotating center to form a driven gear pair; a driven side origin sensor is arranged on a driven side clamping mechanism base on the side of the gear; a reset motor is installed on the base of the driven side clamping mechanism below the rotary encoder, an output shaft of the reset motor is coaxially connected with a tip reset gear, and the tip reset gear is meshed with a gear of an input shaft of the rotary encoder; the reset motor operates to drive the driven side rotating center to rotate back to the zero position angle.
The jumping detection mechanism is used for detecting the rotary jumping of the surface of the workpiece; comprises a measuring mechanism base, a measuring rotary component, a detecting rod and a displacement sensor; the pedestal mounting is on the frame, the both sides fixed mounting at the horizontal middle part of gauge rod has the measurement gyration part, measure the gyration part support mounting on the V type frame of base top both sides, make the gauge rod support on V type frame and around the measurement gyration part gyration, the one end of gauge rod extends and with work piece excircle lower surface contact towards the work piece, the other end of gauge rod and spring unit's upper end are connected, displacement sensor installs on the base, displacement sensor's detection end is up connected with spring unit's lower extreme.
The driving side origin sensor and the driven side origin sensor adopt light sensors or proximity sensors.
And the gear connected with the output shaft of the servo motor and the gear ring of the rotating center are processed into a spline shaft structure.
The workpiece is a shaft part.
The utility model has the advantages that:
the utility model discloses a mechanism can be used for promoting the gyration of axle type part and beat and detect the precision. On the premise of not reducing the production efficiency of the equipment and not sacrificing the detection precision, the requirements of the equipment tool clamp and the production and use cost are reduced.
Drawings
Fig. 1 is an exploded view of the layout of the workpiece and the measuring system of the present invention.
Fig. 2 is an overall assembly/measurement state diagram of the workpiece and measurement system of the present invention.
Fig. 3 is an exploded view of the driving side clamping driving component of the present invention.
Fig. 4 is an assembly view of the driving side clamping driving component of the present invention.
Fig. 5 is an exploded view of the driven side clamping driving member of the present invention.
Fig. 6 is an assembly view of the driven side clamping driving member of the present invention.
Fig. 7 is an exploded view of the measuring mechanism of the present invention.
Fig. 8 is an assembly view of the measuring mechanism of the present invention.
Fig. 9 is a mechanism reset state diagram of the present invention.
In the figure: a0: a support mechanism;
b0: drive side clamping drive member, B1: active side clamping mechanism base, B2: drive side clamp cylinder, B3: drive-side linear bearing, B4: drive side live center, B5: servo motor, B6: an active side origin sensor;
c0: driven-side clamp drive member, C1: driven-side gripper base, C2: driven-side clamp cylinder, C3: driven-side linear bearing, C4: driven-side live center, C5: rotary encoder, C6: driven-side origin sensor, C7: reset motor, C8: a tip reset gear;
d0: jump detection mechanism, D1: measuring mechanism base, D2: measurement rotary member, D3: probe rod, D4: displacement sensor, D5: a spring member;
e0: and (5) a workpiece.
Detailed Description
The invention will be further described with reference to the accompanying drawings and specific embodiments.
As shown in fig. 1 and 2, the present invention includes a supporting mechanism a0, a driving-side clamping driving part B0, a driven-side clamping driving part C0, a runout detecting mechanism D0, and a workpiece E0. The two supporting mechanisms A0 are fixed on the machine base through screws, and workpieces E0 are placed on the two supporting mechanisms A0 so as to carry out subsequent detection and straightening steps; the driving side clamping driving component B0 and the driven side clamping driving component C0 are respectively positioned at the left side and the right side of the workpiece E0, are fixed on the machine base and are also positioned at the two sides of the two supporting mechanisms A0; the clamping cylinder B2 of the driving side clamping driving component B0 and the clamping cylinder C2 of the driven side clamping driving component C0 are pushed out and clamped at two ends of a workpiece E0 through respective rotating centers B4 and C4, so that the workpiece E0 is clamped, and the servo motor B5 drives the rotating centers B4 and C4 to drive the workpiece E0 to rotate the axis of the workpiece E0; the clamping cylinder B2 and the clamping cylinder C2 are used for pushing out, so that the rotary center B4 and the rotary center C4 clamp the workpiece E0, and the servo motor B5 drives the centers to enable the workpiece E0 to do rotary motion around the axis of the workpiece E0; the runout detecting mechanism D0 is mounted beside the workpiece E0, and the runout detecting mechanism D0 detects surface runout of the workpiece E0 during the rotary motion. And after the control system processes the obtained bounce amount, subsequent pressure straightening correction is carried out.
As shown in fig. 3 and 4, the driving side clamping driving part B0 includes a driving side clamping mechanism base B1, a driving side clamping cylinder B2, a driving side linear bearing B3, a driving side rotating center B4 and a servo motor B5; the driving side clamping mechanism base B1 is installed on the machine base, the rotating shaft is parallel to the surface of the machine base, the horizontal plate is fixedly connected to the rotating shaft, a driving side linear bearing B3 is installed on the driving side clamping mechanism base B1, the driving side rotating center B4 comprises a shaft part and a tip part which are coaxially and fixedly connected, the shaft part of the driving side rotating center B4 is sleeved in the driving side linear bearing B3, the driving side linear bearing B3 is parallel to the axial direction of a workpiece E0, the shaft part of the driving side rotating center B4 penetrates through the driving side linear bearing B3 and then is connected with the output end of the driving side clamping cylinder B2, and the driving side clamping cylinder B2 is also installed on the base of the driving side linear bearing B3; the periphery of the tip of the driving side rotating center B4 is processed into a gear ring structure, and the end surface of the tip of the driving side rotating center B4 is provided with a conical center connected to the center of the end surface of a workpiece E0; a servo motor B5 is further mounted on the driving side clamping mechanism base B1, an output shaft of the servo motor B5 is coaxially connected with a gear, and the gear is meshed with a gear ring of a driving side rotating center B4 to form a driving gear pair; a driving side clamping cylinder B2 drives a driving side rotating center B4 to horizontally move along a driving side linear bearing B3, and a servo motor B5 operates to drive the driving side rotating center B4 to rotate through a driving gear pair. The drive side origin sensor B6 is provided to the drive side gripping mechanism base B1 on the gear side.
As shown in fig. 5 and 6, the driven side clamp driving member C0 includes a driven side clamp mechanism base C1, a driven side clamp cylinder C2, a driven side linear bearing C3, a driven side rotating center C4, and a rotary encoder C5; a driven side clamping mechanism base C1 is mounted on the machine base, the rotating shaft is parallel to the surface of the machine base, a horizontal plate is fixedly connected to the rotating shaft, a driven side linear bearing C3 is mounted on the driven side clamping mechanism base C1, the driven side rotating center C4 comprises a shaft part and a tip part which are coaxially and fixedly connected, the shaft part of the driven side rotating center C4 is sleeved in the driven side linear bearing C3, a driven side linear bearing C3 is parallel to the axial direction of a workpiece E0, the shaft part of the driven side rotating center C4 penetrates through the driven side linear bearing C3 and then is connected with the output end of a driven side clamping cylinder C2, and the driven side clamping cylinder C2 is also mounted on the base of the driven side linear bearing C3; the periphery of the tip of the driven side rotating center C4 is processed into a gear ring structure, and the end surface of the tip of the driven side rotating center C4 is provided with a conical center connected to the center of the end surface of the workpiece E0; the driven side clamping mechanism base C1 is also provided with a rotary encoder C5, an input shaft of the rotary encoder C5 is coaxially connected with a gear, and the gear is meshed with a gear ring of a driven side rotating center C4 to form a driven gear pair; the driven side clamping cylinder C2 drives the driven side rotating center C4 to move horizontally along the driven side linear bearing C3, and the rotation of the driven side rotating center C4 drives the rotary encoder C5 to rotate through the driven gear pair to detect the rotation angle. A driven side origin sensor C6 is arranged on a driven side clamping mechanism base C1 at the side of the gear; a driven side clamping mechanism base C1 below the rotary encoder C5 is provided with a reset motor C7, an output shaft of the reset motor C7 is coaxially connected with a centre reset gear C8, and a centre reset gear C8 is meshed with a gear of an input shaft of the rotary encoder C5; the reset motor C7 operates to drive the driven side rotating centre C4 to rotate back to the zero position angle; with the solution the utility model discloses the measurement problem that the rotatory small error of driven side live center C4 among the precision measurement brought improves measurement accuracy.
In a specific implementation, the driving side origin sensor B6 and the driven side origin sensor C6 are optical line sensors or proximity sensors.
When the driving side origin sensor B6 and the driven side origin sensor C6 adopt light sensors, the edge of the end face of the gear is provided with a marking line, and the light sensors detect the position of the marking line and then judge whether to reset to the original position.
When the driving side origin sensor B6 and the driven side origin sensor C6 adopt proximity sensors, the edge of the end face of the gear is provided with a protrusion, and the proximity sensors detect the position of the protrusion and then judge whether to reset to the original position.
In specific implementation, a gear connected with an output shaft of the servo motor B5 and a gear ring of the rotating center B4 are both processed into a spline shaft structure.
As shown in fig. 3 to 6, the clamping mechanism bases B1 and C1 of the two clamping driving components B0 and C0 are fixed on the machine base, and the bases are manually moved to move left and right along the guide rails during model changing. The clamping cylinders B2 and C2 push the rotating centers B4 and C4 to move back and forth in the linear bearings B3 and C3, so that the driving side rotating center B4 of the driving side clamping driving component B0 and the driven side rotating center C4 of the driven side clamping driving component C0 are respectively clamped from both ends of the workpiece E0, and the conical tips of the driving side rotating center B4 and the driven side rotating center C4 are positioned at the center of the end face of the workpiece E0.
Then, with the workpiece E0 clamped by the two clamp drive members B0, C0:
for the driving side clamping driving component B0, a servo motor B5 is installed on the side face of the center, the servo motor B5 drives the tip of the rotating center B4 to rotate through a gear, and the tip of the rotating center B4 is dragged to rotate with a workpiece E0 clamped in a matched mode.
For the driven side clamping driving part C0, the rotation of the workpiece E0 drives the rotating center C4 to rotate, and further drives the gear connected with the tip of the rotating center C4 to drive the rotary encoder C5 to rotate for detecting the angle, so that the current rotation angle of the workpiece E0 is detected.
For the driving side clamping driving component B0, the position is monitored in real time by an origin sensor B6, and the servo motor B5 executes the resetting action of a driving side rotating centre B4; the position of the driven side clamping driving component C0 is monitored in real time by an origin sensor C6, and the reset motor C7 and the center reset gear C8 are used for executing the reset action of the driven side rotating center C4. The origin sensors B6 and C6 serve as target positions for tip resetting.
As shown in fig. 7 and 8, the runout detecting mechanism/measuring mechanism D0 is used to detect the revolution runout of the workpiece surface; the mechanism is arranged on the machine base and can rotate in the vertical direction under a workpiece E0; comprises a measuring mechanism base D1, a measuring rotary component D2, a detecting rod D3 and a displacement sensor D4; base D1 installs on the frame, the both sides fixed mounting in the horizontal middle part of probe pin D3 has measurement revolving part D2, measurement revolving part D2 is axle type structure, measurement revolving part D2 supports and installs on the V type frame of base D1 top both sides, make probe pin D3 support and revolve around measurement revolving part D2 on the V type frame, the one end of probe pin D3 extends and contacts with work piece E0 outer circle lower surface, the other end and the upper end of spring part D5 of probe pin D3 are connected, displacement sensor D4 installs on base D1, displacement sensor D4 main part is in measuring revolving part D2 rotation plane, the detection end of displacement sensor D4 is up and is connected with the lower extreme of spring part D5.
Under the measuring state of the device, the measuring spring component D5 keeps normal tension, the spring force of the spring component D5 pulls the measuring rotary component D2, the end part of the detecting rod D3 is tightly attached to the lower surface of the workpiece E0 and jacks up the workpiece E0, the workpiece E0 indirectly detects the rotary runout of the surface of the workpiece E0 through the displacement sensor D4 in the rotating process, and therefore the runout condition of the workpiece E0 is obtained through analysis, and automatic pressure straightening is conducted subsequently.
Since the workpiece E0 has some bending deformation, its rotation will indirectly cause the deformation/movement of the detecting end of the displacement sensor D4, so that the reading of the displacement sensor D4 changes, and the rotary encoder C5 monitors the current angle of the workpiece E0 in real time. And the upper computer controller collects the reading of the displacement sensor D4 and the angle data generated by the rotary encoder C5, and draws a workpiece angle-surface displacement curve. Workpiece E0 jitter is primarily caused by its bending jitter, and the curve plotted above has a principal component of trigonometric function, which can be seen as a superposition of a sinusoidal signal and a dc component. The sinusoidal signal reflects the curvature of workpiece E0, with a frequency consistent with the workpiece revolution period. The sinusoidal signal may be described by the amplitude and phase of the sinusoidal function. The amplitude reflects the magnitude of the bending jump of workpiece E0, and the phase determines the position/specific angle of the bending jump on the circumference of the workpiece. The superposition of multiple sinusoidal signals of the same frequency is equivalent to the sum of multiple vectors. Where the amplitude of the sinusoidal signal can be considered as the length of the vector and the phase/angle can be considered as the direction of the vector.
The two ends of the workpiece E0 are clamped by the driving side clamping driving part B0 and the driven side clamping driving part C0 and the workpiece E0 is driven to rotate, the jumping vectors before and after the workpiece E0 rotates 180 degrees are measured by the jumping detection mechanism D0, the two jumping vectors are combined and halved to be used as an influence vector, and then the jumping vector obtained in each detection is used as a final detection result. Therefore, the influence of the jumping error caused by the self structure precision problem of the centre/clamp/main shaft is solved, the system error is avoided, and the detection precision is improved.
The utility model discloses an implement the working process and be:
as shown in fig. 2, in the measuring state, the clamping cylinders B2 and C2 are pushed out so that the head conical surfaces of the live center B4 and C4 fit with the center holes at both ends of the workpiece E0. The centers of the rotating centers B4 and C4 are slightly higher than the axle center of the bearing block at the upper part of the supporting mechanism A0, namely the workpiece E0 and the supporting mechanism A0 do not interfere with each other. The feeler lever D3 of the measuring mechanism D0 abuts against the workpiece. The servo motor B5 rotates to drive the workpiece E0 to carry out rotary run-out measurement.
As shown in fig. 9, in the automatic return state, the clamping cylinders B2, C2 are retracted so that the head tapered surfaces of the live center B4, C4 are relatively distant from the center holes at both ends of the workpiece E0. Workpiece E0 is resting on support mechanism a 0. For the driving side clamping driving component B0, a servo motor B5 drives a driving side rotating center B4 to rotate until a signal is detected by a driving side origin sensor B6; in the driven side clamping driving part C0, the center reset gear C8 is driven by the reset motor C7 to drive the rotary encoder C5, and finally the driven side rotary center C4 is rotationally reset until the driven side origin sensor C6 detects a signal.
The method is used for the conditions of replacing workpiece varieties and tool fixtures or needing to be calibrated according to the precision requirement. The equipment automatically acts to detect the standard workpiece so as to calibrate the rotary run-out measuring table. The experimental steps are as follows: 1. the standard workpiece E0 was manually placed on the support mechanism a0 and the machine calibration action was initiated. 2. The motor at two sides drives the center to reset. 3. And (4) pushing out the clamping cylinders B2 and C2 to measure the rotation runout. 4. The servomotor B5 drives the workpiece E0 so that its angle forms a specific angle (45 degrees) with the previous position. 5. The clamping cylinders B2 and C2 retract, the workpiece E0 falls on the supporting mechanism A0, and the steps 2-4 are repeated to the preset times (8 times). 6. The equipment automatically performs statistical analysis on the data.
After the test steps, the equipment obtains the rotating run-out data of the workpiece E0 and the rotating centers B4 and C4 under a plurality of (8) relative angles. The relative angles are uniformly distributed in the area of 0-360 degrees. And comparing the workpiece jumping data difference of each angle, so that the influence of the measuring main shaft on the workpiece jumping data can be observed. To eliminate this effect, the data can be processed to calculate the magnitude and orientation of the spindle/fixture effect on the workpiece runout data and eliminated in actual production measurements.
The collected data can be regarded as the result of the composition of the run-out vector of the main shaft and the run-out vector of the workpiece. The data are subjected to vector synthesis and then averaged to respectively obtain the run-out vectors of the workpiece E0 and the rotating centers B4 and C4, namely the run-out data of the workpiece which is not influenced by the centers/clamps can be obtained.
In actual production, under the condition that the clamping cylinders B2 and C2 are loosened, the center/clamp resetting action is carried out, and at the moment, the equipment is in a standby or pressure straightening state, so that the production rhythm is not influenced; the center is not loosened in the straightening process, and the center is reset after the straightening is finished. The acquired jumping data minus the magnitude of the tip/clamp influence and the inherent error of the measuring system of the device can obtain stable high-precision workpiece E0 jumping data.
Claims (5)
1. The utility model provides a mechanism for eliminating main shaft error and carry out axle type part and beat and detect which characterized in that: comprises a supporting mechanism (A0), a driving side clamping driving part (B0), a driven side clamping driving part (C0), a jumping detection mechanism (D0) and a workpiece (E0); the two supporting mechanisms (A0) are fixed on the machine base through screws, and workpieces (E0) are placed on the two supporting mechanisms (A0); the driving side clamping driving component (B0) and the driven side clamping driving component (C0) are respectively positioned at the left side and the right side of the workpiece (E0) and are fixed on the machine base; the driving side clamping driving part (B0) and the driven side clamping driving part (C0) are pushed out and clamped at two ends of a workpiece (E0) through respective rotating centers, so that the workpiece (E0) is clamped, and the workpiece (E0) is driven to rotate the axis of the workpiece (E0) to do rotating motion; the clamping cylinder (B2) and the driven side clamping cylinder (C2) are used for pushing out, so that the rotating center (B4) and the driven side rotating center (C4) clamp the workpiece (E0), and the servo motor (B5) drives the rotating centers to enable the workpiece (E0) to do rotating motion around the axis of the workpiece; the jumping detection mechanism (D0) is installed beside the side of the workpiece (E0), and the jumping detection mechanism (D0) detects the surface jumping of the workpiece (E0) during the rotary motion.
2. The mechanism of claim 1 for eliminating spindle error and detecting shaft run-out, wherein: the driving side clamping driving part (B0) comprises a driving side clamping mechanism base (B1), a driving side clamping cylinder (B2), a driving side linear bearing (B3), a driving side rotating center (B4) and a servo motor (B5); the driving side clamping mechanism base (B1) is installed on the machine base, the horizontal plate is fixedly connected to the rotating shaft, a driving side linear bearing (B3) is installed on the driving side clamping mechanism base (B1), the driving side rotating center (B4) comprises a shaft part and a tip part which are coaxially and fixedly connected, the shaft part of the driving side rotating center (B4) is sleeved in the driving side linear bearing (B3), and the shaft part of the driving side rotating center (B4) penetrates through the driving side linear bearing (B3) and then is connected with the output end of the driving side clamping cylinder (B2); the periphery of the tip of the driving side rotating center (B4) is processed into a gear ring structure, and the end surface of the tip of the driving side rotating center (B4) is provided with a conical center connected to the center of the end surface of the workpiece (E0); a servo motor (B5) is further mounted on the driving side clamping mechanism base (B1), an output shaft of the servo motor (B5) is coaxially connected with a gear, and the gear is meshed with a gear ring of the driving side rotating center (B4) to form a driving gear pair; a driving side origin sensor (B6) is arranged on a driving side clamping mechanism base (B1) at the side of the gear;
the driven side clamping driving part (C0) comprises a driven side clamping mechanism base (C1), a driven side clamping air cylinder (C2), a driven side linear bearing (C3), a driven side rotating center (C4) and a rotary encoder (C5); a driven side clamping mechanism base (C1) is installed on the machine base, a horizontal plate is fixedly connected to the rotating shaft, a driven side linear bearing (C3) is installed on the driven side clamping mechanism base (C1), a driven side rotating center (C4) comprises a shaft part and a tip part which are coaxially and fixedly connected, the shaft part of the driven side rotating center (C4) is sleeved in the driven side linear bearing (C3), and the shaft part of the driven side rotating center (C4) penetrates through the driven side linear bearing (C3) and then is connected with the output end of a driven side clamping cylinder (C2); the periphery of the tip of the driven side rotating center (C4) is processed into a gear ring structure, and the end surface of the tip of the driven side rotating center (C4) is provided with a conical center connected to the center of the end surface of the workpiece (E0); the driven side clamping mechanism base (C1) is also provided with a rotary encoder (C5), an input shaft of the rotary encoder (C5) is coaxially connected with a gear, and the gear is meshed with a gear ring of the driven side rotating center (C4) to form a driven gear pair; a driven side origin sensor (C6) is arranged on a driven side clamping mechanism base (C1) at the side of the gear; a driven side clamping mechanism base (C1) below the rotary encoder (C5) is provided with a reset motor (C7), an output shaft of the reset motor (C7) is coaxially connected with a centre reset gear (C8), and the centre reset gear (C8) is meshed with a gear of an input shaft of the rotary encoder (C5); the reset motor (C7) operates to drive the driven side rotating centre (C4) to rotate back to the zero position angle;
the jump detection mechanism (D0) is used for detecting the rotary jump of the surface of the workpiece; comprises a measuring mechanism base (D1), a measuring rotary component (D2), a detecting rod (D3) and a displacement sensor (D4); the base (D1) is installed on the stand, two sides of the horizontal middle part of the detection rod (D3) are fixedly provided with measurement rotary components (D2), the measurement rotary components (D2) are supported and installed on (V) type frames on two sides of the top of the base (D1), the detection rod (D3) is supported on the (V) type frames and rotates around the measurement rotary components (D2), one end of the detection rod (D3) extends towards the workpiece (E0) and is in contact with the outer circle lower surface of the workpiece (E0), the other end of the detection rod (D3) is connected with the upper end of the spring component (D5), the displacement sensor (D4) is installed on the base (D1), and the detection end of the displacement sensor (D4) faces upwards and is connected with the lower end of the spring component (D5).
3. The mechanism of claim 2 for eliminating spindle error and detecting shaft run-out, wherein: the driving side origin sensor (B6) and the driven side origin sensor (C6) adopt light sensors or proximity sensors.
4. The mechanism of claim 2 for eliminating spindle error and detecting shaft run-out, wherein: and a gear connected with an output shaft of the servo motor (B5) and a gear ring of the rotating center (B4) are both processed into a spline shaft structure.
5. The mechanism of claim 2 for eliminating spindle error and detecting shaft run-out, wherein: the workpiece (E0) is a shaft part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021529957.2U CN212843464U (en) | 2020-07-29 | 2020-07-29 | Mechanism for eliminating spindle error and detecting shaft part jumping |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021529957.2U CN212843464U (en) | 2020-07-29 | 2020-07-29 | Mechanism for eliminating spindle error and detecting shaft part jumping |
Publications (1)
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113275412A (en) * | 2021-06-15 | 2021-08-20 | 杭州予琚智能装备有限责任公司 | Straightness measuring and correcting device for long-strip-shaped part with special-shaped section |
| CN114346603A (en) * | 2021-12-29 | 2022-04-15 | 中国原子能科学研究院 | Machining process method suitable for slender rod piece of iron-horse steel |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113275412A (en) * | 2021-06-15 | 2021-08-20 | 杭州予琚智能装备有限责任公司 | Straightness measuring and correcting device for long-strip-shaped part with special-shaped section |
| CN114346603A (en) * | 2021-12-29 | 2022-04-15 | 中国原子能科学研究院 | Machining process method suitable for slender rod piece of iron-horse steel |
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