WO2021000715A1 - 一种数控铣齿机 - Google Patents

一种数控铣齿机 Download PDF

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Publication number
WO2021000715A1
WO2021000715A1 PCT/CN2020/095826 CN2020095826W WO2021000715A1 WO 2021000715 A1 WO2021000715 A1 WO 2021000715A1 CN 2020095826 W CN2020095826 W CN 2020095826W WO 2021000715 A1 WO2021000715 A1 WO 2021000715A1
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WO
WIPO (PCT)
Prior art keywords
axis
workpiece
box
tool
sliding table
Prior art date
Application number
PCT/CN2020/095826
Other languages
English (en)
French (fr)
Chinese (zh)
Other versions
WO2021000715A9 (zh
Inventor
李国胜
邹文毅
张春晖
李锡晗
陈闹
史伟
尚吉顺
蒋恺
Original Assignee
湖南中大创远数控装备有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Application filed by 湖南中大创远数控装备有限公司 filed Critical 湖南中大创远数控装备有限公司
Priority to KR1020227001221A priority Critical patent/KR102674942B1/ko
Priority to JP2021577917A priority patent/JP7504136B2/ja
Publication of WO2021000715A1 publication Critical patent/WO2021000715A1/zh
Publication of WO2021000715A9 publication Critical patent/WO2021000715A9/zh

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23F—MAKING GEARS OR TOOTHED RACKS
    • B23F1/00—Making gear teeth by tools of which the profile matches the profile of the required surface
    • B23F1/06—Making gear teeth by tools of which the profile matches the profile of the required surface by milling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23F—MAKING GEARS OR TOOTHED RACKS
    • B23F23/00—Accessories or equipment combined with or arranged in, or specially designed to form part of, gear-cutting machines
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23F—MAKING GEARS OR TOOTHED RACKS
    • B23F23/00—Accessories or equipment combined with or arranged in, or specially designed to form part of, gear-cutting machines
    • B23F23/12—Other devices, e.g. tool holders; Checking devices for controlling workpieces in machines for manufacturing gear teeth
    • 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
    • B23Q11/00—Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
    • B23Q11/0042—Devices for removing chips

Definitions

  • the invention belongs to the field of gear processing equipment, and specifically relates to a numerical control gear milling machine.
  • gear milling machines include mechanical gear milling machines and CNC gear milling machines, and mechanical gear milling machines are gradually eliminated because of their complex structure and adjustment links.
  • the existing CNC gear milling machine uses a computer to directly control three linear axes (ie X, Y, Z axis) and three rotation axes (ie A, B, C axis) to simulate the machining motion of a mechanical gear milling machine, thereby Machining gears.
  • a common CNC gear milling machine is shown in Figure 1 and includes a body 1, on which a B axis 2 is rotatably arranged in the horizontal direction, and an A-axis turntable 3 that rotates with it is arranged on the B axis 2.
  • the A-axis turntable 3 is rotatably provided with an A-axis 4 (that is, a workpiece spindle) perpendicular to the B-axis 2, and a workpiece is installed at one end of the A-axis 4.
  • a support column 5 is provided on the body 1, and the support column 5 is along the X-axis direction
  • the X-axis sliding table 6 is movably provided, and the Y-axis sliding table 7 is movably provided on the X-axis sliding table 6 along the Y-axis direction.
  • the side wall of the Y-axis sliding table 7 is movably provided with Z along the Z-axis direction.
  • the axis sliding table 8 and the Z axis sliding table 8 are provided with a rotatable C axis 9 (ie, a tool spindle) along the vertical direction, a tool is provided at the bottom of the C axis 9, and the tool is located above the A axis 4.
  • a rotatable C axis 9 ie, a tool spindle
  • the CNC gear milling machine with the above structure can realize gear processing, it has the following main defects:
  • the tool overhang In order to ensure that the motion axes do not interfere with each other and the tool can reach the processing point of the workpiece, the tool overhang must be long, and the tool spindle overhang will lead to poor rigidity, so that the tool is easy to use when the processing volume is slightly larger. Vibration, it is difficult to guarantee the machining accuracy;
  • the B-axis is a cradle structure, and the workpiece processing point is directly above the A-axis turntable.
  • iron chips are easy to accumulate, which is particularly unfavorable for dry cutting.
  • the high temperature of the iron chips will cause local deformation, which will affect the accuracy of the machine tool;
  • the position of the processed workpiece is between the two rotating supports of the B axis, which affects the loading and unloading of the workpiece and the observation during the processing;
  • a support column is set on the fuselage, an X-axis slide is set on the support column, a Z-axis slide is set on the X-axis slide, and a Y-axis slide is set on the axis slide. Finally, the C-axis is set on the Y-axis slide.
  • the technical problem to be solved by the present invention is to provide a numerical control gear milling machine with compact structure, small footprint, good stability, convenient operation, high machining accuracy and easy chip removal.
  • a CNC gear milling machine includes:
  • a sliding table is movably arranged on the bed body along the horizontal axis Y axis, a column is movably arranged on the sliding table along the horizontal axis Z axis, and a tool box is movably arranged on the vertical axis X axis on the side wall of the column
  • the C-axis of the tool spindle is rotatably arranged in the tool box, the C-axis of the tool spindle is parallel to the Z-axis, and one end of the C-axis of the tool spindle is equipped with a tool for processing the workpiece;
  • Rotary shaft box Rotary shaft box is arranged on the bed and located on the side of the sliding table in the Z-axis direction.
  • Rotary shaft B is rotatably arranged in the rotary shaft box.
  • the rotary shaft B is parallel to the X-axis direction.
  • the B axis of the rotating shaft is provided with a workpiece box at one end outside the body of the rotating shaft box.
  • the workpiece box rotates with the B axis of the rotating shaft.
  • the workpiece box is rotatably provided with a workpiece spindle A axis, a workpiece spindle A axis and a rotary axis B axis Vertical, the end of the workpiece spindle A axis close to the tool spindle C axis is used to install the workpiece;
  • the chip conveyor is arranged under the tool and the workpiece.
  • a first guide rail is arranged on the side wall of the column along the Y axis direction
  • the tool box is slidably arranged on the first guide rail
  • a second guide rail is arranged on the bed body along the X axis direction
  • the sliding table is slidably arranged on the second guide rail
  • a third guide rail is arranged on the sliding table along the Z-axis direction
  • the upright post is slidably arranged on the third guide rail.
  • it further includes a first driving device, the first driving device is arranged on the column, and the first driving device is in transmission connection with the tool box for driving the tool box to slide along the first guide rail.
  • it further includes a second driving device, the second driving device is arranged on the bed, and the second driving device is in transmission connection with the sliding table for driving the sliding table to slide along the second guide rail.
  • it further includes a third driving device, the third driving device is arranged on the sliding table, and the third driving device is in transmission connection with the upright post for driving the upright post to slide along the third guide rail.
  • the tool box is provided with a first drive motor that drives the C-axis of the tool spindle to rotate
  • the rotary shaft box is provided with a second drive motor that drives the B-axis of the rotary axis to rotate
  • the workpiece box is provided with a workpiece spindle that drives the A-axis to rotate
  • the third drive motor is provided.
  • the formation of the gear tooth surface depends on the relative movement of the tool and the workpiece
  • the relative position of the tool and the workpiece can be determined by the relative position of the bed and the sliding table, the relative position of the sliding table and the column, the column and the tool box
  • the relative position of the body and the rotary axis B axis, the tool spindle C axis, and the workpiece spindle A axis are determined. That is, the relative position of the tool and the workpiece can be determined by three linear axes and three rotation axes. The setting of six axes can maintain the tool And the workpiece can be in any relative position required.
  • the gear milling machine of the present invention has fewer parts, compact structure and small floor space;
  • the C-axis of the tool spindle is arranged along the horizontal Z-axis direction, which can make the position of the tool box lower, thereby making the gear milling machine as a whole
  • the center of gravity is lower and the stability is better;
  • the C-axis of the tool spindle does not need to extend a long distance outside the tool box, so that the tool jitter is smaller and the machining accuracy is higher; at the same time, the tool and the workpiece They are all located outside the side of the bed, which is not only convenient for observation and operation, but also the iron chips will not fall on the machine body, and the chip removal is convenient.
  • Figure 1 is a schematic diagram of the overall structure of an existing gear milling machine
  • FIG. 2 is a schematic diagram of the overall structure of the first embodiment of the present invention.
  • FIG 3 is another perspective view of Embodiment 1 of the present invention.
  • Embodiment 1 of the present invention is a third perspective view of Embodiment 1 of the present invention.
  • FIG. 5 is a schematic diagram of the overall structure of the second embodiment of the present invention.
  • FIG. 6 is another perspective view of Embodiment 2 of the present invention.
  • FIG. 7 is a third perspective view of Embodiment 2 of the present invention.
  • the CNC gear milling machine of the present invention includes a bed 100.
  • a sliding table 200 is movably arranged on the bed 100 along the horizontal axis X axis.
  • the sliding table 200 is arranged along the horizontal axis.
  • a column 201 is movably arranged toward the Z axis.
  • a tool box 202 is movably arranged on the side wall of the column 201 along the vertical axis Y axis.
  • the tool box 202 is rotatably provided with a tool spindle C axis.
  • the C axis is parallel to the Z axis.
  • One end of the C axis of the tool spindle is equipped with a tool 203 for processing the workpiece.
  • the bed 100 is also provided with a rotary axis box 204, which is located on the sliding table 200 along the Z axis direction.
  • the rotary shaft box 204 is rotatably provided with a rotary axis B axis
  • the rotary axis B axis is parallel to the X axis direction
  • the rotary axis B axis is provided with a workpiece box 205 at one end outside the rotary axis box 204.
  • the box body 205 rotates with the rotary axis B axis.
  • the workpiece box body 205 is rotatably provided with the workpiece spindle A axis.
  • the workpiece spindle A axis is perpendicular to the rotary axis B axis.
  • the workpiece spindle A axis is close to the end of the tool spindle C axis for
  • the workpiece is installed, and a chip conveyor 300 is provided under the tool 203 and the workpiece.
  • the formation of the gear tooth surface depends on the relative movement of the tool 203 and the workpiece
  • the relative position of the tool 203 and the workpiece can be determined by the relative position of the bed 100 and the sliding table 200, and the relative position of the sliding table 200 and the column 201.
  • the position, the relative position of the column 201 and the tool box 202, the rotary axis B axis, the tool spindle C axis, and the workpiece spindle A axis are determined. That is, the relative position of the tool 203 and the workpiece can be determined by three linear axes and three rotation axes. ,
  • the six-axis setting can keep the tool 203 and the workpiece in any desired relative position.
  • the sliding table 13 is controlled to move to the appropriate position along the horizontal axis X axis, and the column 201 is controlled to be horizontal Move the Z axis to the appropriate position in the axial direction, and control the tool box 202 to move to the appropriate position along the vertical axis Y axis, so that the tool 203 contacts the workpiece to implement milling processing.
  • the rotary axis B axis can adjust the machining angle of the workpiece, and the machining position of the workpiece can be adjusted by rotating the workpiece spindle A axis and the tool spindle C axis.
  • the gear milling machine of the present invention has fewer parts, compact structure and small floor space.
  • the C-axis of the tool spindle is arranged along the horizontal Z-axis, which can make the position of the tool box 202 lower, which in turn makes the overall center of gravity of the gear milling machine lower and has better stability.
  • the C-axis of the tool spindle does not need to be extended beyond the tool box 202 for a long distance, so that the tool 203 shakes less and the machining accuracy is higher.
  • both the tool 203 and the workpiece are located outside the side of the bed 100, which is not only convenient for observation and operation, but also the iron filings will not fall on the bed 100, which is convenient for chip removal.
  • the position of the rotating shaft box 204 is fixed, and the position of the cutter 203 can be adjusted, so that the operation is more convenient and the machining accuracy is higher.
  • X-axis, Y-axis and Z-axis are the three axes of the spatial Cartesian coordinate system, wherein the X-axis and Z-axis are arranged in the horizontal direction, and the Y-axis is arranged in the vertical direction.
  • a first guide rail 400 is provided on the side wall of the column 201 along the Y axis direction, the tool box 202 is slidably disposed on the first guide rail 400, and the bed 100 is provided along the X axis direction.
  • the sliding table 200 is slidably disposed on the second guide rail 401
  • a third guide rail 402 is disposed on the sliding table 200 along the Z axis direction
  • the post 201 is slidably disposed on the third guide rail 402.
  • FIGS. 2 to 4 it further includes a first driving device 403, the first driving device 403 is arranged on the column 201, and the first driving device 403 is in transmission connection with the tool box 202 for driving the tool box
  • the body 202 slides along the first guide rail 400.
  • the second driving device 404 is arranged on the bed 100, and the second driving device 404 is drivingly connected to the sliding table 200 for driving the sliding table 200 along The second guide rail 401 slides.
  • the third driving device 405 is provided on the sliding table 200, and the third driving device 405 is drivingly connected with the column 201 for driving the column 201 along the third The guide rail 402 slides.
  • the spatial position of the tool box 202 can be adjusted, and the relative position of the tool 203 and the workpiece can be adjusted.
  • the first driving device 403 includes a first screw 406 and a first screw nut.
  • the first screw 406 is rotatably arranged on the column 201, and the first screw 406 is connected to the The Y-axis direction is parallel, the first screw nut is disposed on the tool housing 202 corresponding to the first screw 406, and the first screw nut is threadedly connected with the first screw 406.
  • the first screw 406 is driven to rotate by the motor, so that the first screw nut moves along the axial direction of the first screw 406, and the first screw nut drives the tool housing 202 to move along the Y-axis direction.
  • the second driving device 404 includes a second screw 407 and a second screw nut.
  • the second screw 407 is rotatably arranged on the bed 100, and the second screw 407 Parallel to the X-axis direction, the second screw nut is disposed on the sliding table 200 corresponding to the second screw 407, and the second screw nut is threadedly connected with the second screw 407.
  • the motor drives the second screw 407 to rotate, so that the second screw nut moves along the axial direction of the second screw 407, and the second screw nut drives the sliding table 200 to move in the X-axis direction.
  • the third driving device 405 includes a third screw 408 and a third screw nut.
  • the third screw 408 is rotatably arranged on the sliding table 200, and the third screw 408 Parallel to the Z-axis direction, the third screw nut is disposed on the column 201 corresponding to the third screw 408, and the third screw nut is threadedly connected with the third screw 408.
  • the motor drives the third screw 408 to rotate, so that the third screw nut moves along the axial direction of the third screw 408, and the third screw nut drives the column 201 to move along the Z-axis direction.
  • the motor can directly drive the first lead screw 406, the second lead screw 407, and the third lead screw 408 to rotate, and the motor can also indirectly drive the first lead screw 406, the second lead screw 406, and the second lead screw through a conveyor belt or gear.
  • the rod 407 and the third screw 408 rotate.
  • thread holes that are compatible with the first screw 406, the second screw 407, and the third screw 408 can also be directly machined on the tool box 202, the sliding table 200, and the column 201.
  • one or more of the first driving device 403, the second driving device 404, and the third driving device 405 may also be one of linear motors, air cylinders, or oil cylinders.
  • the second driving device 404 and the third driving device 405 are linear motors
  • the bodies of the three linear motors are respectively arranged on the column 201, the bed 100 and the sliding table 200, and the linear drive shafts of the three linear motors are respectively connected to the tool box 202 ,
  • the sliding table 200 and the column 201 are in transmission connection.
  • the bodies of the three air cylinders or oil cylinders are respectively arranged on the column 201, the bed 100 and the sliding table 200, and the three The piston rod of the air cylinder or the oil cylinder is respectively drivingly connected with the tool box 202, the sliding table 200 and the column 201.
  • first guide rails 400 there are two first guide rails 400, the two first guide rails 400 are respectively disposed on both sides of the first driving device 403, the second guide rails 401 are two, and the two second guide rails 401 are The guide rails 401 are respectively disposed on both sides of the second driving device 404, the third guide rails 402 are two, and the two third guide rails 402 are respectively disposed on both sides of the third driving device 405.
  • This arrangement can make the tool box 202, the sliding table 200 and the column 201 more stable and smooth in the moving process, and the driving device is arranged in the middle of the corresponding two guide rails, which can make the structure of the whole machine more compact.
  • the number of the first guide rail 400, the second guide rail 401, and the third guide rail 402 can also be multiple and they are respectively provided in two of the first driving device 403, the second driving device 404, and the third driving device 405. side.
  • the side walls of the first guide rail 400, the second guide rail 401, and the third guide rail 402 are provided with grooves 409 along the axial direction, the tool box 202, the sliding table 200 and the column Corresponding protrusions are provided on the 201.
  • the cooperation of the groove 409 and the protrusions can make the tool box 202, the sliding table 200 and the upright 201 clamped on the first rail 400, the second rail 401 and the third rail 402 to It is used to prevent the tool box 202, the sliding table 200 and the column 201 from falling off during the movement.
  • protrusions can also be provided on the side walls of the first guide rail 400, the second guide rail 401, and the third guide rail 402, and corresponding grooves 409 are provided on the tool box 202, the sliding table 200 and the column 201. .
  • the tool box 202 is provided with a first drive motor that drives the tool spindle C axis to rotate
  • the rotary axis box 204 is provided with a second drive motor that drives the rotary axis B axis to rotate.
  • the box body 205 is provided with a third driving motor that drives the workpiece spindle A to rotate.
  • the first drive motor, the second drive motor and the third drive motor do not need to be exposed, which can increase the service life. It should be noted that the first drive motor, the second drive motor, and the third drive motor can directly drive the tool spindle C axis, the rotary axis B axis, and the workpiece spindle A axis to rotate, respectively.
  • the first drive motor, the second drive motor, and the The third drive motor can also drive the conveyor belt or gear and other transmission mechanisms to operate, and the conveyor belt or gear and other transmission mechanisms indirectly drive the tool spindle C axis, the rotary axis B axis and the workpiece spindle A axis to rotate.
  • the numerical control gear milling machine provided by this embodiment is basically the same as that of the first embodiment.
  • the main difference is that the connection method of the column 201 and the sliding table 200 of this embodiment is the same as that of the first embodiment. The difference.
  • two third guide rails 402 are horizontally arranged on the upper surface of the sliding table 200, and the column 201 is slidably arranged on the third guide rail 402, and the third guide rails 402 of this embodiment are at least two and are respectively arranged on the sliding table
  • the lower end of the column 201 and the side wall away from the tool box 202 are provided with first openings along the Z axis direction, so that the cross section of the column 201 in the Z axis direction is upside down
  • the upper end of the sliding table 200 and the side wall close to the tool box 202 are arranged along the Z axis direction
  • the second opening makes the cross section of the sliding table 200 in the Z-axis direction a step-like structure for reserving installation space for the third driving device 405.
  • This arrangement not only makes the structure more compact, but also allows the side wall provided with the first guide rail 400 on the column 201 to extend downward, so that the position of the tool box 202 can be lower, and finally the center of gravity of the gear milling machine is lower. Stability is better.
  • the second opening of the sliding table 200 can also reduce the overall weight of the sliding table 200, thereby reducing the power required to drive the sliding table 200.
  • the third driving device 405 is arranged between the upper surface of the sliding table 200 and the third guide rail 402 on the side, which not only makes the column 201 more stable and smooth during the movement, but also makes the structure of the whole machine more compact.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Machine Tool Units (AREA)
  • Auxiliary Devices For Machine Tools (AREA)
  • Gear Processing (AREA)
PCT/CN2020/095826 2019-07-01 2020-06-12 一种数控铣齿机 WO2021000715A1 (zh)

Priority Applications (2)

Application Number Priority Date Filing Date Title
KR1020227001221A KR102674942B1 (ko) 2019-07-01 2020-06-12 수치제어 기어 밀링 머신
JP2021577917A JP7504136B2 (ja) 2019-07-01 2020-06-12 数値制御式歯車切削装置

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201910585449.1A CN110340453A (zh) 2019-07-01 2019-07-01 一种数控铣齿机
CN201910585449.1 2019-07-01

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WO2021000715A1 true WO2021000715A1 (zh) 2021-01-07
WO2021000715A9 WO2021000715A9 (zh) 2021-02-18

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JP (1) JP7504136B2 (ja)
KR (1) KR102674942B1 (ja)
CN (1) CN110340453A (ja)
WO (1) WO2021000715A1 (ja)

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CN113118792A (zh) * 2021-03-31 2021-07-16 北京精雕科技集团有限公司 一种立卧结合的双工位复合机床
CN113231892A (zh) * 2021-06-10 2021-08-10 广州市威嘉机床有限公司 一种模块化的加工中心
CN117620755A (zh) * 2024-01-26 2024-03-01 山东豪迈机械制造有限公司 一种容器管箱水纹线加工装置

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CN113878150B (zh) * 2021-09-16 2024-05-17 山东雷德数控机械股份有限公司 一种环保型数控五轴四铣刀端面铣床

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CN113231892A (zh) * 2021-06-10 2021-08-10 广州市威嘉机床有限公司 一种模块化的加工中心
CN117620755A (zh) * 2024-01-26 2024-03-01 山东豪迈机械制造有限公司 一种容器管箱水纹线加工装置
CN117620755B (zh) * 2024-01-26 2024-04-26 山东豪迈机械制造有限公司 一种容器管箱水纹线加工装置

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