High-precision gear machining apparatus and process

Abstract

The application relates to the field of gear machining, in particular to a high-precision gear machining device and process, which comprises a workbench, a clamping fixture, a calibration assembly, a machining assembly and a transmission assembly, the clamping fixture is connected to the end face of the workbench, the transmission assembly is connected to the end face of the workbench, the machining assembly and the calibration assembly are both connected to the driving end of the transmission assembly, the calibration assembly comprises a calibration bench and a calibration table, the calibration bench is connected to the driving end of the transmission assembly, the calibration table is connected to the end face of the calibration bench, and a controller is connected between the calibration table and the transmission assembly; when the flatness of the gear end face measured by the calibration table is less than a preset value, the controller drives the transmission assembly to drive the machining assembly to approach the clamping fixture. In the application, the calibration table and the controller are arranged, separation of defective products and qualified products is realized, a worker does not need to hold a detection device to detect the flatness of the gear end face, the machining steps of gear machining are reduced, the work burden of the worker is reduced, and the machining cost of the gear is reduced.

Description

High-precision gear machining equipment and processes Technical Field

[0001] This application relates to the field of gear processing, and in particular to a high-precision gear processing equipment and process. Background Technology

[0002] A gear is a mechanical component with teeth on its rim that can continuously mesh to transmit motion and power. Gear machining equipment completes the machining by confining the gear to the end face of the gear machining equipment and rotating it, while the cutting tool mills multiple tooth grooves on the circumferential outer wall of the gear.

[0003] When the gear processing equipment finishes processing the gear, in order to ensure the quality of the gear in its later use, the staff needs to use a handheld inspection device to check the flatness of the gear end face and manually classify the defective and qualified products. This increases the processing steps of the gear processing, increases the workload of the staff, extends the gear processing cycle, and thus increases the gear processing cost. Summary of the Invention

[0004] To address the issue of gear processing costs, this application provides a high-precision gear processing equipment and process.

[0005] Firstly, this application provides a high-precision gear processing equipment, which adopts the following technical solution:

[0006] A high-precision gear machining equipment includes a worktable, a clamping fixture, a calibration component, a machining component, and a transmission component. The clamping fixture is connected to the end face of the worktable and is used to clamp gears. The transmission component is also connected to the end face of the worktable. Both the machining component and the calibration component are connected to the drive end of the transmission component. The transmission component drives the calibration component and the machining component to sequentially approach the clamping fixture. The machining component is used to machine the gears on the clamping fixture. The calibration component includes a calibration table and a calibration gauge. The calibration table is connected to the drive end of the transmission component, and the calibration gauge is connected to the end face of the calibration table. The calibration gauge is used to detect the flatness of the gear end face on the clamping fixture. A controller is connected between the calibration gauge and the transmission component. The controller receives the values ​​from the calibration gauge and controls the operation of the transmission component. When the flatness of the gear end face measured by the calibration gauge is less than a preset value, the controller drives the transmission component to drive the machining component closer to the clamping fixture.

[0007] By adopting the above technical solution, during gear processing, the clamping fixture holds the gear, the transmission component drives the calibration component to approach the clamping fixture, and the calibration gauge's detection end abuts against the gear end face on the clamping fixture and detects the flatness of the gear end face. When the flatness of the gear on the clamping fixture is less than a preset value, the gear flatness test is qualified, the controller drives the transmission component to drive the processing component to approach the clamping fixture, and the processing component's processing end completes the processing of the gear on the clamping fixture, realizing automatic gear processing; when the flatness of the gear on the clamping fixture is greater than a preset value, the gear flatness test is unqualified, the controller drives the transmission component to stop running, the processing component does not need to process the defective product, shortening the gear processing cycle, and the operator removes the defective gear, realizing the separation of defective and qualified products. The operator does not need to hold the detection device to detect the flatness of the gear end face, reducing the processing steps of gear processing, reducing the workload of the operator, and thus reducing the gear processing cost.

[0008] Optionally, the processing assembly includes a processing table and a processing tool. The processing table is connected to the drive end of the transmission assembly. The end face of the processing table has a processing hole for the processing tool to pass through. A clamping bolt is threaded onto the end face of the processing table. The end of the clamping bolt passes through the end face of the processing table and is located in the processing hole. When the fixed end of the processing tool passes through the processing hole, the end of the clamping bolt located in the processing hole abuts against the end face of the fixed end of the processing tool to form a fixation, and the processing end of the processing tool faces the clamping fixture.

[0009] By adopting the above technical solution, a machining hole is provided at the fixed end of the machining tool, and the end of the clamping bolt is tightened and fixed to the end face of the machining table. The end of the clamping bolt located in the machining hole is tightened and fixed to the end face of the machining end of the machining tool, and the machining end of the machining tool faces the gear on the clamping fixture. When the machining end of the machining tool processes the end face of the gear on the clamping fixture, the end of the clamping bolt is pressed against the end face of the fixed end of the machining tool to form a fixation, so that the fixed end of the machining tool is not easily displaced by gear vibration in the machining hole, thereby realizing stable machining of the gear by the machining tool and improving the machining accuracy of the gear.

[0010] Optionally, the clamping fixture includes a clamping rod and a plurality of clamping blocks. One end of the clamping rod is rotatably connected to the end face of the worktable around its own axis, and the other end of the clamping rod faces the transmission assembly and is used to clamp the gear. The plurality of clamping blocks are sequentially slidably connected to the end face of the clamping rod facing the transmission assembly around the axis of the clamping rod. The plurality of clamping blocks slide toward the direction close to the axis of the clamping rod and abut against and fix to the outer wall of the gear to form a limit, and the gear axis coincides with the axis of the clamping rod.

[0011] By adopting the above technical solution, during gear processing, the operator places the gear on the end face of the clamping rod facing the transmission component. Multiple clamping blocks slide towards the axis of the clamping rod and clamp the outer circumference of the gear to form a fixed position. The gear axis coincides with the axis of the clamping rod, thus fixing the gear on the end face of the worktable. When the transmission component drives the calibration component to approach the clamping fixture, the calibration gauge's detection end abuts against the gear end face. The clamping rod rotates and connects to the end face of the worktable, and the gear axis coincides with the axis of the clamping rod, causing the gear to rotate around its own axis. This enables the calibration gauge to stably detect the flatness of the gear end face, thereby improving the detection efficiency of the calibration gauge in detecting the flatness of the gear end face.

[0012] Optionally, a chip removal assembly is connected to the workbench. The chip removal assembly includes a chip removal seat, a first bevel gear, a second bevel gear, a transmission component, and a transmission fan. A fixed cavity for accommodating the chip removal seat is formed on the end face of the workbench. A rotating hole for the clamping rod to pass through is formed on the end face of the chip removal seat. A driving cavity is formed on the inner wall of the rotating hole. The second bevel gear is coaxially connected to the outer wall of the clamping rod. The second bevel gear is rotatably connected to the inner wall of the driving cavity, and the second bevel gear meshes with the first bevel gear. The transmission fan is rotatably connected to the inner wall of the driving cavity, and the exhaust end of the transmission fan faces the outer wall of the clamping rod. The transmission component is connected between the transmission fan and the second bevel gear. The transmission component is used to receive the power of the second bevel gear and drive the transmission fan to rotate. The clamping rod has a coaxial connecting annular groove on the outer wall facing the air outlet end of the transmission fan. The connecting annular groove connects to the drive cavity. An air passage one is opened on the inner wall of the connecting annular groove. An air passage two is opened on the end face of the clamping block facing the clamping rod. When the end face of the clamping block clamps the outer wall of the gear, the first air passage and the second air passage are connected. The air generated by the rotation of the transmission fan passes through the connecting annular groove, the first air passage and the second air passage in sequence and impacts the gear processing end face.

[0013] By adopting the above technical solution, when the gear is placed on the end face of the clamping rod facing the transmission component, multiple clamping blocks slide towards the direction close to the axis of the clamping rod and clamp the outer wall of the gear. The gear axis coincides with the axis of the clamping rod. At the same time, air passage one connects to air passage two. The clamping rod rotates, driving the bevel gear two to rotate. The transmission component receives the power of the bevel gear two and drives the transmission fan to rotate. The air outlet of the transmission fan faces the connecting annular groove. The air generated by the rotation of the transmission fan passes through the connecting annular groove, air passage one and air passage two in sequence and impacts the gear machining surface and the machining end of the machining tool. This drives the fine chips generated by the machining tool on the gear to be discharged, making it less likely for fine chips to accumulate on the gear end face and wear the machining end face of the machining tool, thereby extending the service life of the machining tool. At the same time, when the machining tool is machining the gear, part of the kinetic energy of the machining tool is converted into heat energy. The machining end of the machining tool heats up and expands. The machining tool transfers part of the heat energy to the air discharged from air passage two, thereby cooling the machining tool and making it less likely for the machining tool to heat up and expand, thereby improving the machining accuracy of the machining tool on the gear.

[0014] Optionally, a filter screen is connected to the inner wall of the second air passage facing the axis of the clamping rod. The filter screen is used to intercept fine debris from the gear end face from entering the inner cavity of the second air passage.

[0015] By adopting the above technical solution, when the fine chips generated during the machining of the gear end face are impacted by the centrifugal force generated by the rotation of the clamping rod towards the direction of air passage two, the filter screen is connected to the inner wall of air passage two facing the axis of the clamping rod. The filter screen is used to intercept the fine chips from entering the air passage two, and the fine chips are not easy to clog the inner cavity of air passage two, thereby improving the stability of the air in air passage one. The fine chips are discharged from air passage two and impact the gear end face, realizing automatic chip removal of the gear end face without the need for manual cleaning by the staff, thereby reducing the workload of the staff and improving the work efficiency of the staff.

[0016] Optionally, the chip removal assembly further includes a sealing plate, a first sealing ring, and a second sealing ring. The outer circumferential wall of the sealing plate is connected to the inner wall of the drive cavity to form a seal. The end face of the sealing plate facing the connecting ring groove has an air outlet chamber, which connects the drive cavity and the connecting ring groove. The first sealing ring and the second sealing ring are sequentially sleeved on the outer wall of the clamping rod. The first sealing ring and the second sealing ring are located on both sides of the connecting ring groove. The outer walls of the first sealing ring and the second sealing ring are both pressed against the outer wall of the sealing plate to form a seal.

[0017] By adopting the above technical solution, the outer circumferential wall of the sealing plate is connected to the inner wall of the drive cavity to form a seal. The drive cavity, the air outlet cavity, and the connecting ring groove are connected in sequence. Sealing ring one and sealing ring two are sleeved on the outer wall of the clamping rod. Sealing ring one and sealing ring two are located on both sides of the connecting ring groove. The inner wall of sealing ring one abuts against the outer wall of the clamping rod to form a seal. The outer wall of sealing ring one abuts against the outer wall of the sealing plate to form a seal. The inner wall of sealing ring two abuts against the outer wall of the clamping rod to form a seal. The outer wall of sealing ring two abuts against the outer wall of the sealing plate to form a seal. This allows the air generated by the rotation of the drive fan to stably pass through the air outlet cavity, the connecting ring groove, and air passage one, and be discharged from air passage two, reducing the loss of wind energy. This ensures that the air generated by the rotation of the drive fan stably impacts the gear end face and drives the fine debris from the gear end face to be discharged.

[0018] Optionally, the inner wall of the connecting ring groove is provided with a guide surface. The inclination height of the guide surface decreases as the distance to the opening of the air passage decreases. The guide surface guides the air in the connecting ring groove into the air passage.

[0019] By adopting the above technical solution, when the air generated by the transmission fan enters the connecting ring groove through the air outlet chamber, the guide surface guides the air in the connecting ring groove into the first air passage, making it less likely for the air in the connecting ring groove to hit the inner wall of the connecting ring groove, reducing the loss of wind energy, thereby improving the stability of the air in the second air passage to drive the fine debris from the gear end face to be discharged.

[0020] Optionally, the inner wall of the first air passage facing the second air passage is provided with a connecting groove, the length direction of the connecting groove is parallel to the sliding direction of the clamping block, and the connecting groove connects to the second air passage.

[0021] By adopting the above technical solution, the length direction of the connecting groove and the sliding direction of the clamping block are parallel to each other. When the clamping block is slidably connected to the end face of the clamping rod, the connecting groove connects air passage one and air passage two, so that the air generated by the rotation of the drive fan passes stably through the connecting ring groove and air passage one in sequence and is discharged from air passage two, thereby improving the stability of the air generated by the rotation of the drive fan being discharged from air passage two.

[0022] Optionally, the clamping block includes a sliding part and a splicing part. One end of the sliding part is connected to the end of the splicing part, and the other end of the sliding part is slidably connected to the end face of the clamping rod. The second air passage is located between the sliding part and the splicing part. The end face of the splicing part located in the second air passage is provided with a reinforcing surface. The inclination height of the reinforcing surface decreases as the distance to the filter decreases. The reinforcing surface guides the air in the second air passage to gather and discharge.

[0023] By adopting the above technical solution, the inclination height of the reinforcing surface decreases as the distance to the filter screen decreases, the air in the reinforcing surface guides the air in the second air passage to gather and discharge, enhances the air force discharged in the second air passage, further enhances the thrust of the fine chips discharged from the gear end face, and makes the machining tool less susceptible to wear due to interference from the fine chips on the gear end face, thereby extending the service life of the high-precision gear machining equipment.

[0024] Secondly, this application provides a high-precision gear machining process, which adopts the following technical solution:

[0025] A high-precision gear machining process includes the following steps:

[0026] When purchasing raw materials, select raw materials of the appropriate size;

[0027] Normalizing the blank: Normalizing the blank to ensure the hardness of the core of the blank;

[0028] Machining involves milling flat surfaces and turning outer diameters on the end faces and surfaces of the blank.

[0029] Drill the center hole at the center of the blank;

[0030] Gear hobbing involves using a gear hobbing machine to perform gear hobbing on a blank, machining tooth grooves on the blank, and leaving appropriate finishing allowances on the sidewalls of the tooth grooves.

[0031] The inspection involves placing the workpiece on a high-precision gear processing machine and using a calibration gauge to check the flatness of the workpiece's end face.

[0032] In the fine grinding process, the transmission assembly drives the machining assembly close to the inspected and qualified workpiece. The machining assembly performs fine grinding on the end face of the workpiece, removing sharp edges and burrs from the workpiece surface, thus completing the gear machining.

[0033] By adopting the above technical solution, during gear processing, the blank is first normalized to ensure that the core hardness of the blank meets the hardness requirements of the gear, thereby improving the gear processing accuracy. At the same time, the calibration table checks the flatness of the workpiece end face, realizing the separation of defective and qualified products. There is no need for workers to use handheld testing devices to check the flatness of the gear end face, reducing the processing steps in gear processing, reducing the workload of workers, and thus reducing the processing cost of gears.

[0034] In summary, this application includes at least one of the following beneficial technical effects:

[0035] 1. The calibration table and controller settings enable the separation of defective and qualified products, eliminating the need for staff to use handheld testing devices to check the flatness of gear end faces, reducing the number of processing steps in gear manufacturing, lowering the workload of staff, and thus reducing gear manufacturing costs;

[0036] 2. The setting of the clamping bolts prevents the fixed end of the machining tool from shifting due to gear vibration within the machining hole, thus achieving stable machining of the gear by the machining tool and improving the machining accuracy of the gear;

[0037] 3. The transmission fan drives the machining tool to discharge the fine chips generated during gear machining, preventing the chips from accumulating on the gear end face and wearing down the machining tool end face, thereby extending the service life of the machining tool. Attached Figure Description

[0038] Figure 1 is a schematic diagram of the overall structure of an embodiment of this application.

[0039] Figure 2 is a partial cross-sectional view of an embodiment of this application, mainly showing the chip removal component.

[0040] Explanation of reference numerals in the attached drawings: 1. Worktable; 11. Transmission unit; 12. Limiting unit; 13. Fixed cavity; 2. Clamping fixture; 21. Clamping rod; 211. Sealing ring groove one; 212. Sealing ring groove two; 213. Connecting ring groove; 214. Air passage one; 2141. Guide surface; 215. Connecting groove; 22. Clamping block; 221. Air passage two; 222. Sliding part; 2221. Positioning hole; 223. Splicing part; 2231. Reinforcing surface; 3. Calibration assembly; 31. Calibration table; 32. Calibration gauge; 33. Calibration bolt; 4. Machining assembly; 41. Machining table; 411. 42. Machining hole; 43. Machining bolt; 5. Machining tool; 5. Transmission assembly; 51. Linear motor one; 52. Linear motor two; 53. Fixing plate; 531. Slide groove; 6. Gear; 7. Clamping bolt; 8. Chip removal assembly; 81. Chip removal seat; 811. Rotating hole; 812. Drive cavity; 82. Bevel gear one; 83. Bevel gear two; 84. Transmission component; 841. Transmission wheel; 842. Synchronous belt; 85. Transmission fan; 86. Sealing plate; 861. Connecting hole; 862. Air outlet cavity; 87. Sealing ring one; 88. Sealing ring two; 9. Filter screen; 10. Positioning rod. Detailed Implementation

[0041] The present application will be further described in detail below with reference to Figures 1-2.

[0042] This application discloses a high-precision gear processing equipment. Referring to Figure 1, the high-precision gear processing equipment includes a worktable 1, a clamping fixture 2, a calibration component 3, a processing component 4, and a transmission component 5. The worktable 1 includes a transmission part 11 and a limiting part 12. In this embodiment, both the transmission part 11 and the limiting part 12 are square plates. The end of the transmission part 11 along its length is welded and fixed to the end face of the limiting part 12, and the height of the limiting part 12 is higher than the height of the transmission part 11. The clamping fixture 2 is connected to the end face of the limiting part 12 facing the transmission part 11, and is used to clamp a gear 6. The transmission component 5 is connected to the end face of the transmission part 11 facing the clamping fixture 2. The calibration component 3 and the processing component 4 are connected at intervals to the drive end face of the transmission component 5. The transmission component 5 drives the calibration component 3 and the processing component 4 to pass sequentially through the clamping fixture 2. The calibration component 3 is used to detect the flatness of the end face of the gear 6 on the clamping fixture 2, and the processing component 4 is used to process the end face of the gear 6 on the clamping fixture 2.

[0043] Referring to Figure 1, the transmission assembly 5 includes a first linear motor 51, a second linear motor 52, and a fixing plate 53. The bottom of the first linear motor 51 is welded and fixed to the end face of the transmission part 11. The sliding direction of the moving part of the first linear motor 51 is parallel to the length direction of the transmission part 11. The bottom of the second linear motor 52 is welded and fixed to the end face of the moving part of the first linear motor 51. The sliding direction of the moving part of the second linear motor 52 is parallel to the width direction of the transmission part 11. The fixing plate 53 is welded and fixed to the end face of the moving part of the second linear motor 52. The processing assembly 4 and the calibration assembly 3 are both connected to the end face of the fixing plate 53. The first linear motor 51 drives the second linear motor 52 to approach the clamping fixture 2. The second linear motor 52 drives the calibration assembly 3 and the processing assembly 4 to approach the clamping fixture 2 in sequence.

[0044] Referring to Figure 1, the calibration assembly 3 includes a calibration platform 31, a calibration gauge 32, and a calibration bolt 33. Multiple grooves 531 are evenly spaced on the end face of the fixing plate 53. The length direction of the grooves 531 is parallel to the sliding direction of the fixing plate 53. One end of the calibration bolt 33 passes through the outer wall of the fixing plate 53 and is threaded and fixed to the inner wall of the groove 531, thus fixing the calibration platform 31 on the fixing plate 53. The calibration gauge 32 can be a dial indicator or a percentage indicator. In this embodiment, the calibration gauge 32 is a percentage indicator. A calibration hole is provided on the end face of the calibration platform 31 for the detection end of the calibration gauge 32 to pass through. The axis of the calibration hole is parallel to the length direction of the transmission part 11. The calibration hole passes through the outer wall of the calibration platform 31 along its own axis. When the detection end of the calibration gauge 32 passes through the calibration hole, the circumferential outer wall of the detection end of the calibration gauge 32 abuts against the inner wall of the calibration hole to form a fixation, and the detection end of the calibration gauge 32 faces the end face of the limiting part 12.

[0045] Referring to Figure 1, a controller is connected between calibration meter 32, linear motor 1 51 and linear motor 2 52. Calibration meter 32 is used to measure the flatness of the end face of gear 6 and send the value to the controller. The controller sets a preset value and compares the value with the preset value.

[0046] Referring to Figure 1, when the value is less than the preset value, the controller first drives the linear motor 51 to run, and the linear motor 52 moves away from the limit part 12. The contact effect between the detection end of the calibration gauge 32 and the end face of the gear 6 disappears. The controller then drives the linear motor 52 to run, and the processing component 4 moves closer to the clamping fixture 2. The processing component 4 processes the circumferential outer wall of the gear 6 on the clamping fixture 2. When the value is greater than the preset value, the controller drives the linear motor 51 to run, and the linear motor 52 moves away from the limit part 12. The contact effect between the detection end of the calibration gauge 32 and the end face of the gear 6 disappears, so that the staff can remove the defective products from the clamping fixture 2 in advance.

[0047] Referring to Figure 1, the machining assembly 4 includes a machining table 41, a machining bolt 42, and a machining tool 43. One end of the machining bolt 42 passes through the outer wall of the machining table 41 and is threaded and fixed to the inner wall of the slide groove 531, thus fixing the machining table 41 on the fixing plate 53. The end face of the machining table 41 has a machining hole 411 for the tool to pass through. The axis of the machining hole 411 is parallel to the axis of the calibration hole. The machining hole 411 passes through the outer wall of the machining table 41 along its own axis. The fixed end of the machining tool 43 passes through the machining hole 411, and the machining end of the machining tool 43 faces the end face of the limiting part 12.

[0048] Referring to Figure 1, a clamping bolt 7 is threadedly connected to the end face of the machining table 41. The end of the clamping bolt 7 is threaded and fixed to the end face of the machining table 41 and embedded in the machining hole 411. The end of the clamping bolt 7 located in the machining hole 411 abuts against the end face of the fixed end of the machining tool 43 to form a fixation, so that the machining end of the machining tool 43 is less likely to deviate when machining the gear 6 on the clamping fixture 2, thereby improving the machining accuracy of the machining tool 43 on the gear 6.

[0049] Referring to Figures 1 and 2, in this embodiment of the application, the clamping fixture 2 is a pneumatic chuck. The clamping fixture 2 includes a clamping rod 21 and a plurality of clamping blocks 22. One end of the clamping rod 21 is rotatably connected to the end face of the limiting part 12 facing the transmission part 11 along its own axis. The rotation axis of the clamping rod 21 is parallel to the sliding direction of the linear motor 52. The other end of the clamping rod 21 faces the fixing plate 53 and is used to clamp the gear 6. The plurality of clamping blocks 22 are slidably connected to the end face of the clamping rod 21 facing the transmission assembly 5 around the axis of the clamping rod 21. When the gear 6 is placed on the end face of the clamping rod 21 facing the fixing plate 53, the plurality of clamping blocks 22 slide toward the direction close to the axis of the clamping rod 21 and clamp the outer peripheral surface of the gear 6, and the axis of the clamping rod 21 coincides with the axis of the gear 6.

[0050] Referring to Figures 1 and 2, a chip removal assembly 8 is connected to the worktable 1. The chip removal assembly 8 is used to drive the fine chips from the end face of the gear 6 to be discharged. The chip removal assembly 8 includes a chip removal seat 81, a first bevel gear 82, a second bevel gear 83, a transmission component 84, a transmission fan 85, a sealing plate 86, a first sealing ring 87, and a second sealing ring 88. In this embodiment, the chip removal seat 81 is cylindrical, and a fixed cavity 13 is provided on the end face of the limiting part 12 to accommodate the chip removal seat 81. The fixed cavity 13 is a cylindrical cavity, and the axis of the fixed cavity 13 is parallel to the axis of the machining hole 411. The outer circumferential wall of the chip removal seat 81 is welded and fixed to the inner wall of the fixed cavity 13 to form a fixation. The end face of the chip removal seat 81 facing the fixed plate 53 is coaxially provided with a rotating hole 811 for the clamping rod 21 to pass through. The rotating hole 811 penetrates the outer wall of the chip removal seat 81 along its own axis.

[0051] Referring to Figure 2, a driving cavity 812 is formed on the inner wall of the rotating hole 811. A first bevel gear 82 is coaxially welded and fixed to the outer wall of the clamping rod 21 located within the rotating hole 811. A second bevel gear 83 is rotatably connected to the inner wall of the driving cavity 812 along its own axis. The axis of the second bevel gear 83 is parallel and perpendicular to the axis of the first bevel gear 82, and the first bevel gear 82 meshes with the second bevel gear 83. A drive fan 85 is rotatably connected to the inner wall of the driving cavity 812, and the axis of rotation of the drive fan 85 is parallel to the axis of the second bevel gear 83. The transmission component 84 includes two drive wheels 841 and a synchronous belt 842 used in conjunction with the drive wheels 841. One drive wheel 841 is coaxially welded and fixed to the outer wall of the rotating shaft of the second bevel gear 83, and the other drive wheel 841 is coaxially welded and fixed to the outer wall of the rotating shaft of the drive fan 85. The synchronous belt 842 tensions and connects the two drive wheels 841.

[0052] Referring to Figure 2, the sealing plate 86 is embedded in the drive cavity 812. The outer circumferential wall of the sealing plate 86 is welded and fixed to the inner wall of the drive cavity 812 to form a seal. The end face of the sealing plate 86 has a connecting hole 861 for the rotating shaft of the second bevel gear 83 to pass through. The end face of the sealing plate 86 facing the drive fan 85 has an air outlet cavity 862, which connects the drive cavity 812 and the rotating hole 811. The outer wall of the clamping rod 21 located in the rotating hole 811 has a sealing ring groove 1 211 and a sealing ring groove 212 coaxially spaced apart. The sealing ring groove 1 211 and the sealing ring groove 212 are located on both sides of the air outlet cavity 862. The material of the sealing ring 1 87 and the sealing ring 2 88 can be rubber or silicone. In this embodiment, the material of the sealing ring 1 87 and the sealing ring 2 88 is rubber, which has a certain deformation capability.

[0053] Referring to Figure 2, sealing ring 1 87 and sealing ring 2 88 are sequentially sleeved on the outer wall of clamping rod 21. Sealing ring 1 87 is coaxially embedded in sealing ring groove 1 211. The inner wall of sealing ring 1 87 abuts against the inner wall of sealing ring groove to form a seal. The outer wall of sealing ring 1 87 abuts against the outer wall of sealing plate 86 to form a seal. Sealing ring 2 88 is coaxially embedded in sealing ring groove 2 212. The inner wall of sealing ring 2 88 abuts against the inner wall of sealing ring groove to form a seal. The outer wall of sealing ring 2 88 abuts against the outer wall of sealing plate 86 to form a seal.

[0054] Referring to Figure 2, a connecting annular groove 213 is coaxially formed on the outer wall of the clamping rod 21 facing the air outlet chamber 862. An air passage 214 is formed on the bottom wall of the connecting annular groove 213 facing the air outlet chamber 862. The air passage 214 penetrates the outer wall of the clamping rod 21 in the direction close to the clamping block 22. A guide surface 2141 is provided on the inner wall of the connecting annular groove 213. The inclination height of the guide surface 2141 decreases as the distance to the opening of the air passage 214 decreases. When the clamping rod 21 rotates, it drives the first bevel gear 82 and the second bevel gear 83 to rotate. The synchronous belt 842 drives the transmission fan 85 to rotate. The air generated by the rotation of the transmission fan 85 enters the connecting annular groove 213 through the air outlet chamber 862. The guide surface 2141 guides the air in the connecting annular groove 213 into the air passage 214, thereby realizing the discharge of the air generated by the rotation of the transmission fan 85.

[0055] Referring to Figure 2, the clamping block 22 has a second air passage 221 on its end face facing the clamping rod 21, and the second air passage 221 extends through the end face of the clamping block 22 in a direction close to the gear 6. A first air passage 214 has a connecting groove 215 on its inner wall facing the second air passage 221. In this embodiment, the connecting groove 215 is a strip-shaped groove, and the length direction of the connecting groove 215 is parallel to the sliding direction of the clamping block 22, and the connecting groove 215 connects the first air passage 214 and the second air passage 221.

[0056] Referring to Figures 1 and 2, when the multiple clamping blocks 22 slide towards the axis of the clamping rod 21 and clamp the outer circumference of the gear 6, the first air passage 214, the connecting groove 215, and the second air passage 221 are connected. The air in the first air passage 214 passes through the first air passage 214, the connecting groove 215, and the second air passage 221 in sequence and is discharged. The air impacts the machining area between the gear 6 and the machining tool 43 and drives the fine chips generated during the machining of the end face of the gear 6 to be discharged, making it less likely for the fine chips to remain on the end face of the gear 6 and wear the machining end of the machining tool 43, thereby reducing the wear of the machining tool 43 and extending the service life of the machining tool 43. At the same time, part of the kinetic energy of the machining end of the machining tool 43 on the end face of the gear 6 is converted into heat energy. The machining end of the machining tool 43 transfers part of the heat energy to the air discharged from the second air passage 221, thereby cooling the machining tool 43 and improving the machining accuracy of the machining tool 43 on the gear 6.

[0057] Referring to Figure 2, a filter screen 9 is welded and fixed to the inner wall of the second air passage 221 facing the gear 6. The filter screen 9 is used to intercept fine debris generated during the machining of the end face of the gear 6 and prevent it from entering the second air passage 221. The clamping block 22 includes a sliding part 222 and a splicing part 223. A positioning rod 10 is welded and fixed to the end face of the splicing part 223. A positioning hole 2221 for the positioning rod 10 to be inserted is opened on the end face of the sliding part 222. The outer wall of the positioning rod 10 is pressed against the inner wall of the positioning hole 2221 to form a fixed position. The end face of the sliding part 222 away from the splicing part 223 is slidably connected to the end face of the clamping rod 21. Airway 221 is located between splicing part 223 and sliding part 222. The end face of splicing part 223 inside airway 221 is provided with reinforcing surface 2231. The inclination height of reinforcing surface 2231 decreases as the distance to filter screen 9 decreases. Reinforcing surface 2231 guides the air inside airway 221 to gather and then discharge, thereby increasing the air velocity discharged from airway 221.

[0058] The implementation principle of a high-precision gear processing equipment according to an embodiment of this application is as follows: When processing gear 6, gear 6 is placed on the end face of clamping rod 21 facing fixed plate 53. Multiple clamping blocks 22 slide towards the axis of clamping rod 21 and clamp and fix it to the outer circumferential wall of gear 6. Linear motor 1 51 drives linear motor 2 52 to slide towards the clamping fixture 2. The detection end of calibration gauge 32 abuts against the end face of gear 6 and detects the flatness of the end face of gear 6. When the value is less than the preset value, the controller first causes linear motor 1 51 to run, and linear motor 2 52 moves away from the limit part 12. The contact effect between the detection end of calibration gauge 32 and the end face of gear 6 disappears, and the controller... Then, the linear motor 52 is driven to run, the processing component 4 approaches the clamping fixture 2, and the processing tool 43 processes the gear 6 on the clamping fixture 2; when the value is greater than the preset value, the controller drives the linear motor 51 to run, and the linear motor 52 moves away from the limit part 12, so that the contact effect between the detection end of the calibration gauge 32 and the end face of the gear 6 disappears, thus making it convenient for the staff to remove the defective products from the clamping fixture 2 in advance, realizing the separation of defective products and qualified products. The staff does not need to hold the detection device to check the flatness of the end face of the gear 6, reducing the processing steps of the gear 6, reducing the workload of the staff, and thus reducing the processing cost of the gear 6.

[0059] This application also discloses a high-precision gear machining process, including the following steps:

[0060] When purchasing raw materials, select raw materials of the appropriate size;

[0061] Normalizing the blank: Normalizing the blank to ensure the hardness of the core of the blank;

[0062] Machining involves milling flat surfaces and turning outer diameters on the end faces and surfaces of the blank.

[0063] Drill the center hole at the center of the blank;

[0064] Gear hobbing involves using a gear hobbing machine to perform gear hobbing on a blank, machining tooth grooves on the blank, and leaving appropriate finishing allowances on the sidewalls of the tooth grooves.

[0065] For inspection, the workpiece is placed on a high-precision gear processing equipment, and the flatness of the workpiece end face is inspected using calibrator 32.

[0066] In the fine grinding process, the transmission component 5 drives the processing component 4 close to the inspected and qualified workpiece. The processing component 4 performs fine grinding on the end face of the workpiece to remove sharp edges and burrs, thus completing the machining of the gear 6.

[0067] The implementation principle of a high-precision gear machining process in this application embodiment is as follows: When machining gear 6, the blank is first normalized to ensure that the core hardness of the blank meets the hardness requirements of gear 6, thereby improving the machining accuracy of gear 6. At the same time, the calibration table 32 is used to detect the flatness of the workpiece end face, realizing the separation of defective products and qualified products. There is no need for the staff to use a handheld detection device to detect the flatness of the end face of gear 6, reducing the machining steps of gear 6, reducing the workload of the staff, and thus reducing the machining cost of gear 6.

[0068] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A high-precision gear processing equipment, characterized in that: The assembly includes a worktable (1), a clamping fixture (2), a calibration component (3), a machining component (4), and a transmission component (5). The clamping fixture (2) is connected to the end face of the worktable (1) and is used to clamp a gear (6). The transmission component (5) is connected to the end face of the worktable (1). The machining component (4) and the calibration component (3) are both connected to the drive end of the transmission component (5). The transmission component (5) is used to drive the calibration component (3) and the machining component (4) to approach the clamping fixture (2) in sequence. The machining component (4) is used to machine the gear (6) on the clamping fixture (2). The calibration component (3) includes a calibration table (3). 1) and calibration table (32), the calibration table (31) is connected to the drive end of the transmission assembly (5), the calibration table (32) is connected to the end face of the calibration table (31), the calibration table (32) is used to detect the flatness of the end face of the gear (6) on the clamping fixture (2), the calibration table (32) and the transmission assembly (5) are connected to a controller, the controller is used to receive the value of the calibration table (32) and control the operation of the transmission assembly (5), when the flatness of the end face of the gear (6) measured by the calibration table (32) is less than the preset value, the controller drives the transmission assembly (5) to drive the machining assembly (4) to approach the clamping fixture (2); the machining assembly ( 4) Includes a machining table (41) and a machining tool (43). The machining table (41) is connected to the drive end of the transmission assembly (5). The end face of the machining table (41) has a machining hole (411) for the machining tool (43) to pass through. The end face of the machining table (41) is threaded with a clamping bolt (7). The end of the clamping bolt (7) passes through the end face of the machining table (41) and is located in the machining hole (411). When the fixed end of the machining tool (43) passes through the machining hole (411), the end of the clamping bolt (7) located in the machining hole (411) abuts against the fixed end face of the machining tool (43) to form a fixation, and the machining tool (43) is tightened. The working end faces the clamping fixture (2); the clamping fixture (2) includes a clamping rod (21) and a plurality of clamping blocks (22). One end of the clamping rod (21) is rotatably connected to the end face of the worktable (1) around its own axis. The other end of the clamping rod (21) faces the transmission assembly (5) and is used to clamp the gear (6). The plurality of clamping blocks (22) are slidably connected to the end face of the clamping rod (21) facing the transmission assembly (5) around the axis of the clamping rod (21). The plurality of clamping blocks (22) slide toward the axis of the clamping rod (21) and abut against and fix to the outer wall of the gear (6) to form a limit. The axis of the gear (6) coincides with the axis of the clamping rod (21).A chip removal assembly (8) is connected to the workbench (1). The chip removal assembly (8) includes a chip removal seat (81), a first bevel gear (82), a second bevel gear (83), a transmission component (84), and a transmission fan (85). The end face of the workbench (1) is provided with a fixed cavity (13) for accommodating the chip removal seat (81). The end face of the chip removal seat (81) is provided with a rotating hole (811) for the clamping rod (21) to pass through. The inner wall of the rotating hole (811) is provided with a driving cavity (812). The first bevel gear (82) is coaxially connected to the outer wall of the clamping rod (21). The second bevel gear (83) is rotatably connected to the inner wall of the driving cavity (812), and the second bevel gear (83) meshes with the first bevel gear (82). The transmission fan (85) is rotatably connected to the inner wall of the driving cavity (812). The air outlet of the transmission fan (85) faces the outer wall of the clamping rod (21). The moving part (84) is connected between the transmission fan (85) and the second bevel gear (83). The transmission part (84) is used to receive the power of the second bevel gear (83) and drive the transmission fan (85) to rotate. The clamping rod (21) has a coaxial connecting annular groove (213) on the outer wall facing the air outlet of the transmission fan (85). The connecting annular groove (213) is connected to the drive cavity (812). The inner wall of the connecting annular groove (213) has an air passage (214). The clamping block (22) has an air passage (221) on the end face facing the clamping rod (21). When the end face of the clamping block (22) clamps the outer wall of the gear (6), the air passage (214) and the air passage (221) are connected. The wind generated by the rotation of the transmission fan (85) passes through the connecting annular groove (213), the air passage (214) and the air passage (221) in sequence and impacts the processing end face of the gear (6). ; 2. The high-precision gear processing equipment according to claim 1, characterized in that: The inner wall of the second air passage (221) facing the axis of the clamping rod (21) is connected to a filter screen (9), which is used to intercept fine debris from the end face of the gear (6) into the inner cavity of the second air passage (221).

3. The high-precision gear processing equipment according to claim 1, characterized in that: The chip removal assembly (8) further includes a sealing plate (86), a first sealing ring (87), and a second sealing ring (88). The outer circumferential wall of the sealing plate (86) is connected to the inner wall of the drive cavity (812) to form a seal. The end face of the sealing plate (86) facing the connecting ring groove (213) has an air outlet chamber (862). The air outlet chamber (862) connects the drive cavity (812) and the connecting ring groove (213). The first sealing ring (87) and the second sealing ring (88) are sequentially sleeved on the outer wall of the clamping rod (21). The first sealing ring (87) and the second sealing ring (88) are located on both sides of the connecting ring groove (213). The outer walls of the first sealing ring (87) and the second sealing ring (88) are both pressed against the outer wall of the sealing plate (86) to form a seal.

4. The high-precision gear processing equipment according to claim 3, characterized in that: The inner wall of the connecting ring groove (213) is provided with a guide surface (2141). The inclination height of the guide surface (2141) decreases as the distance to the opening of the air passage (214) decreases. The guide surface (2141) guides the air in the connecting ring groove (213) into the air passage (214).

5. The high-precision gear processing equipment according to claim 1, characterized in that: The inner wall of the first air passage (214) facing the second air passage (221) has a connecting groove (215). The length direction of the connecting groove (215) is parallel to the sliding direction of the clamping block (22), and the connecting groove (215) connects to the second air passage (221).

6. The high-precision gear processing equipment according to claim 2, characterized in that: The clamping block (22) includes a sliding part (222) and a splicing part (223). One end of the sliding part (222) is connected to the end of the splicing part (223), and the other end of the sliding part (222) is slidably connected to the end face of the clamping rod (21). The second air passage (221) is located between the sliding part (222) and the splicing part (223). The end face of the splicing part (223) located in the second air passage (221) is provided with a reinforcing surface (2231). The inclination height of the reinforcing surface (2231) decreases as the distance to the filter (9) decreases. The reinforcing surface (2231) guides the air in the second air passage (221) to gather and discharge.

7. A high-precision gear machining process, characterized by: Includes the following steps: Selection of blanks: Select blanks of appropriate size; normalizing of blanks: Perform normalizing treatment on blanks to ensure the hardness of the core of blanks; machining: Mill the end face and surface of blanks and turn the outer circle; grinding of center hole: Drill a center hole at the center position of blanks; gear hobbing: Use a gear hobbing machine to perform gear hobbing on blanks, process the gear grooves on blanks, and leave an appropriate finishing allowance on the side wall of the gear grooves; inspection: Place the workpiece on the high-precision gear processing equipment described in any one of claims 1-6, and use a calibration table (32) to inspect the flatness of the end face of the workpiece; fine grinding: The transmission component (5) drives the processing component (4) to approach the qualified workpiece, and the processing component (4) performs fine grinding on the end face of the workpiece to remove the sharp edges and burrs on the surface of the workpiece, thereby completing the processing of the gear (6).

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