Tool clamp for gear machining

Abstract

The invention relates to the technical field of gear machining, in particular to a gear machining tool clamp which comprises a base table, a supporting cylinder is mounted on the upper side of the base table, a machining ring table is arranged on the upper side of the base table around the supporting cylinder, and at least two lower supporting parts and mounting grooves used for mounting the lower supporting parts are arranged on the upper side of the machining ring table. A first electric lifting rod is arranged in the lower supporting part, a positioning shaft is installed at the upper end of the first electric lifting rod, a threaded hole is coaxially formed in the upper end of the positioning shaft, an upper fixing shaft is installed at the position, above the machining ring table, of the supporting cylinder, and a threaded rod is installed at the lower end of the upper fixing shaft; a second electric lifting rod used for driving the positioning shaft to move up and down and a third motor used for driving the positioning shaft to rotate are arranged at the upper end of the positioning shaft, and a feeding and discharging assembly is arranged on the side, away from the upper fixing shaft, of the supporting cylinder. The problems that in the prior art, in the gear machining process, manual feeding and discharging are mostly adopted, time is consumed, and the machining efficiency is affected are solved.

Description

Technical Field

[0001] This invention relates to the field of gear processing technology, and more specifically to a tooling fixture for gear processing. Background Technology

[0002] Gears are mechanical components with teeth on their rims that can continuously mesh to transmit motion and power. They are toothed mechanical parts that can mesh with each other. Gears and gear products are important basic components of mechanical equipment. The main transmission components of most complete sets of mechanical equipment are gear drives, and their application in mechanical transmission and the entire mechanical field is extremely widespread.

[0003] Currently, gear processing involves fixing a steel billet in a fixture and then using various gear processing equipment such as gear hobbing machines, gear shaping machines, and gear grinding machines. Most gear processing currently relies on manual loading and unloading, requiring the finished gear to be disassembled and replaced with a new steel billet after each processing cycle. This method is time-consuming. Therefore, this application proposes a gear processing fixture that can automatically change gears and steel billets during the gear processing process, improving processing efficiency. Summary of the Invention

[0004] The purpose of this invention is to provide a tooling fixture for gear processing, which solves the problem that in the prior art, most gear processing is done manually, which is time-consuming and affects processing efficiency.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0006] A tooling fixture for gear machining includes a base, a supporting cylinder vertically mounted at the center of the upper side of the base, and a machining ring platform arranged around the supporting cylinder on the upper side of the base. The machining ring platform is driven by a first motor to rotate around the supporting cylinder. At least two lower support portions and mounting slots for mounting the lower support portions are provided on the upper side of the machining ring platform. A first lifting cavity is provided within each lower support portion, and a first electric lifting rod is vertically mounted at the bottom of the first lifting cavity. A mounting plate is mounted on the upper end of the first electric lifting rod, and a positioning shaft coaxial with the lower support portion is mounted on the upper side of the mounting plate. The upper end of the positioning shaft is coaxial with the lower support portion. The support column is equipped with a threaded hole and a second motor for driving the lower support to rotate along the vertical axis is installed in the mounting groove. The upper end of the lower support is equipped with a lifting hole that communicates with the first lifting chamber. The positioning shaft is placed in the lifting hole. The support column is equipped with an upper fixed shaft above the processing ring table. A pressure plate is installed at the lower end of the upper fixed shaft. A threaded rod matching the threaded hole is installed at the lower end of the pressure plate. The upper end of the positioning shaft is equipped with a second electric lifting rod for driving the positioning shaft to move up and down, and a third motor for driving the positioning shaft to rotate. The support column is equipped with a loading and unloading assembly on the side away from the upper fixed shaft.

[0007] A further technical solution is that a drive ring is arranged around the upper side of the base and supporting cylinder. The inner wall of the processing ring stage slides and fits against the outer wall of the drive ring. The outer wall of the drive ring is recessed and has a first drive ring groove. The inner wall of the processing ring stage is provided with an internal gear ring at the position corresponding to the first drive ring groove. A first motor is installed in the first drive ring groove. A first gear is installed on the output shaft of the first motor. The first gear meshes with the internal gear ring for transmission. The outer wall of the drive ring is recessed and has a mounting hole. A third electric lifting rod is installed in the mounting groove. A positioning pin is installed at the end of the output shaft of the third electric lifting rod. The outer wall of the processing ring stage is provided with at least two positioning holes that match the positioning pin. A first guide rail is arranged around the upper side of the base and supporting cylinder. A first guide rail groove is provided on the lower side of the processing ring stage and is slidably connected to the first guide rail.

[0008] A further technical solution is that a second drive ring groove is provided around the wall of the mounting groove, and an external gear ring is provided around the outer wall of the lower support corresponding to the second drive ring groove. A second motor is installed in the second drive ring groove, and a second gear is installed on the output shaft of the second motor. The second gear meshes with the external gear ring for transmission.

[0009] A further technical solution is to provide a bottom ring around the outer wall of the upper end of the lower support, with the bottom ring positioned on the upper side of the base and the upper side of the bottom ring flush with the upper end of the lower support. The lower side of the bottom ring is slidably connected to the upper side of the base via a plane bearing. A second guide rail in the shape of an annular strip is provided at the bottom of the mounting groove, and a second guide rail groove that is slidably connected to the second guide rail strip is provided at the lower end of the lower support.

[0010] A further technical solution involves a mounting section above the base, where a second lifting chamber is located. A first lifting cylinder slides vertically within this chamber. The upper end of the mounting section has an upper through-hole communicating with the second lifting chamber, and the lower end has a lower through-hole also communicating with the second lifting chamber. An upper fixed shaft slides vertically within the lower through-hole, and its upper end is coaxially connected to the lower end of the first lifting cylinder. A drive hole is recessed at the upper end of the first lifting cylinder. A third motor is mounted above the mounting section with its output shaft facing downwards. The end of the third motor's output shaft is fitted with... The device includes a drive rod that passes through an upper through hole and is positioned within a drive hole. A lifting ring groove is provided around the outer wall of the first lifting cylinder. A third lifting cavity is also vertically arranged within the mounting part. A second lifting cylinder is slidably positioned up and down within the third lifting cavity. A first connecting hole is provided at the upper end of the mounting part, which communicates with the third lifting cavity. The output shaft of the second electric lifting rod passes through the first connecting hole into the third lifting cavity and connects with the second lifting cylinder. A vertically arranged slot connects the third lifting cavity and the second lifting cavity. A toggle rod is slidably positioned up and down within the slot. One end of the toggle rod is placed in the lifting ring groove, and the other end is connected to the second lifting cylinder.

[0011] A further technical solution is that a pressure chamber is provided inside the second lifting cylinder, and a second connecting hole connected to the pressure chamber is provided at the upper end of the second lifting cylinder. The lower end of the output shaft of the second electric lifting rod passes through the second connecting hole and is placed inside the pressure chamber. A push plate is connected inside the pressure chamber, and a pressure sensor is installed at the bottom of the pressure chamber. The push plate abuts against the pressure sensor through a first spring. A second spring is sleeved on the upper fixed shaft inside the second lifting chamber. The upper end of the second spring is connected to the lower end of the first lifting cylinder, and the lower end is connected to the lower cavity wall of the second lifting chamber.

[0012] A further technical solution is that the loading and unloading assembly includes a fixed arm, a movable plate, a first ball screw worktable, a second ball screw worktable, and a fourth electric lifting rod. The first ball screw worktable is horizontally arranged on the upper side of the fixed arm. The fourth electric lifting rod is connected to the first slider of the first ball screw worktable. The output shaft of the fourth electric lifting rod is downward and connected to the upper side of the movable plate. The second ball screw worktable is installed on the lower side of the movable plate. The screw of the second ball screw worktable has opposite thread directions from the middle to both ends. The screw of the second ball screw worktable has two second sliders threadedly connected to both sides of the middle section. The lower side of each of the two second sliders is provided with a clamping block. The opposite side of each clamping block is provided with an arc-shaped clamping groove.

[0013] A further technical solution involves a high-pressure air ring movably fitted onto the upper side of the pressure plate on the outer wall of the upper fixed shaft. A first guide rod is vertically arranged on the upper side of the high-pressure air ring, and a second guide rod is vertically arranged on the lower side of the mounting part. A guide ring is installed at the lower end of the second guide rod. The first guide rod slides up and down within the guide ring. An air distribution chamber is provided within the high-pressure air ring. A first air nozzle is provided on the side of the air distribution ring away from the supporting cylinder, and a second air nozzle is provided on the lower side of the air distribution ring. The first air nozzle is connected to the air distribution chamber through a first channel, and the second air nozzle is connected to the air distribution chamber through a second channel. The connection between the first and second channels and the air distribution chamber is located on the same side wall of the air distribution chamber. A control plate is fitted against the side wall of the air distribution chamber. A vent hole is provided on the control plate. A fifth electric lifting rod is provided on the air distribution ring to control the movement of the control plate so that the vent hole is aligned with the first or second channel. The air distribution chamber is connected to an external high-pressure air supply device through an air inlet channel.

[0014] A further technical solution is that a gear shaper is installed on one side of the base for processing gears, and a proximity sensor is installed on the upper side of the high-pressure air ring via a support frame, with the proximity sensor aligned with the gear shaper cutter of the gear shaper.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: By setting two or more lower support parts, one of the lower support parts can be aligned with the gear shaper by rotating the processing ring table for gear processing. The other lower support part, not aligned with the gear shaper, has its processed gear removed by the loading and unloading assembly, and a steel billet installed, thereby improving the efficiency of loading and unloading during gear processing and increasing processing efficiency. When the lower support part rotates below the drive positioning shaft, the lower support part and the pressure plate clamp and fix the steel billet through the cooperation of a third motor and a second electric lifting rod, thereby performing gear processing. By setting the second motor, the steel billet can rotate together with the lower support part during processing, allowing the steel billet to rotate synchronously with the gear shaper on the gear shaper for gear processing. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of a gear machining fixture and gear shaping machine according to the present invention.

[0017] Figure 2 This is a side cross-sectional view of a gear machining fixture according to the present invention.

[0018] Figure 3 This is a partial cross-sectional schematic diagram of a gear machining fixture according to the present invention.

[0019] Figure 4 This is a cross-sectional schematic diagram of the mounting section of a tooling fixture for gear processing according to the present invention.

[0020] Figure 5 for Figure 1 A magnified view of the area marked A in the middle.

[0021] Icons: 1-Base, 2-Supporting cylinder, 3-Machining ring, 4-First motor, 5-Lower support, 6-Mounting slot, 7-First lifting chamber, 8-First electric lifting rod, 9-Mounting plate, 10-Positioning shaft, 11-Threaded hole, 12-Second motor, 13-Lifting hole, 14-Upper fixed shaft, 15-Pressure plate, 16-Threaded rod, 17-Second electric lifting rod, 18-Third motor, 19-Drive ring, 20-First drive ring groove 21-Internal gear ring, 22-First gear, 23-Mounting hole, 24-Third electric lifting rod, 25-Positioning pin, 26-Positioning hole, 27-First guide rail, 28-Second drive ring groove, 29-External gear ring, 30-Second gear, 31-Bottom ring, 32-Side bearing, 33-Second guide rail, 34-Mounting part, 35-Second lifting cavity, 36-First lifting cylinder, 37-Upper through hole, 38-Lower through hole, 39-Drive hole 40-Drive rod, 41-Lifting ring groove, 42-Third lifting chamber, 43-Second lifting cylinder, 44-First connecting hole, 46-Strip hole, 47-Actuating rod, 48-Pressure chamber, 49-Second connecting hole, 50-Push plate, 51-Pressure sensor, 52-First spring, 53-Fixed arm, 54-Moving plate, 55-First ball screw worktable, 56-Second ball screw worktable, 57-Fourth electric lifting rod, 58-First 59-Second slider, 60-Clamping block, 61-High-pressure air ring, 62-First guide rod, 63-Second guide rod, 64-Guide ring, 65-Air distribution chamber, 66-First air nozzle, 67-Second air nozzle, 68-First channel, 69-Second channel, 70-Control board, 71-Ventilation hole, 72-Air inlet channel, 73-Gear hobbing machine, 74-Support frame, 75-Proximity sensor, 76-Second spring, 77-Fifth electric lifting rod. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0023] Figures 1 to 5 The image shows an embodiment of the present invention.

[0024] Example:

[0025] A gear machining fixture includes a base 1, a supporting cylinder 2 vertically mounted at the center of the upper side of the base 1, a machining ring 3 arranged around the supporting cylinder 2 on the upper side of the base 1, the machining ring 3 being driven by a first motor 4 to rotate a ring 19 around the supporting cylinder 2, at least two lower support parts 5 and mounting grooves 6 for mounting the lower support parts 5 are provided on the upper side of the machining ring 3, a first lifting cavity 7 is provided in the lower support part 5, a first electric lifting rod 8 is vertically mounted at the bottom of the first lifting cavity 7, a mounting plate 9 is mounted on the upper end of the first electric lifting rod 8, a positioning shaft 10 coaxial with the lower support part 5 is mounted on the upper side of the mounting plate 9, and a threaded hole 1 is coaxially provided on the upper end of the positioning shaft 10. 1. A second motor 12 for driving the lower support 5 to rotate along the vertical axis is provided in the mounting groove 6. The upper end of the lower support 5 is provided with a lifting hole 13 that communicates with the first lifting chamber 7. The positioning shaft 10 is placed in the lifting hole 13. The upper fixed shaft 14 is installed on the support cylinder 2 above the processing ring table 3. The lower end of the upper fixed shaft 14 is provided with a pressure plate 15. The lower end of the pressure plate 15 is provided with a threaded rod 16 that matches the threaded hole 11. The upper end of the positioning shaft 10 is provided with a second electric lifting rod 17 for driving the positioning shaft 10 to move up and down, and a third motor 18 for driving the positioning shaft 10 to rotate. The support cylinder 2 is provided with a loading and unloading assembly on the side away from the upper fixed shaft 14. By setting two or more lower support parts 5, one of the lower support parts 5 can be aligned with the gear shaper 73 by rotating the processing ring table 3 for gear processing. The other lower support part 5, not aligned with the gear shaper 73, can have its processed gear removed by the loading and unloading assembly and a steel billet installed, thereby improving the loading and unloading efficiency during gear processing and increasing overall processing efficiency. When the lower support part 5 rotates below the drive positioning shaft 10, the lower support part 5 and the pressure plate 15 are clamped and fixed to the steel billet by the cooperation of the third motor 18 and the second electric lifting rod 17, thus performing gear processing. By setting the second motor 12, the steel billet can rotate together with the lower support part 5 during processing, allowing the steel billet to rotate synchronously with the gear shaper on the gear shaper 73 for gear processing.

[0026] A drive ring 19 is provided around the upper side of the base 1 and the supporting cylinder 2. The inner wall of the processing ring platform 3 is slidably fitted with the outer wall of the drive ring 19. The outer wall of the drive ring 19 is recessed and provided with a first drive ring groove 20. The inner wall of the processing ring platform 3 is provided with an internal gear ring 21 at the position corresponding to the first drive ring groove 20. A first motor 4 is installed in the first drive ring groove 20. A first gear 22 is installed on the output shaft of the first motor 4. The first gear 22 meshes with the internal gear ring 21 for transmission. The outer wall of the drive ring 19 is recessed and provided with a mounting hole 23. A third electric lifting rod 24 is installed in the mounting groove 6. A positioning pin 25 is installed at the end of the output shaft of the third electric lifting rod 24. The outer wall of the processing ring platform 3 is provided with at least two positioning holes 26 that match the positioning pin 25. A first guide rail 27 is provided around the upper side of the base 1 and the lower side of the processing ring platform 3 is provided with a first guide rail groove that is slidably connected to the first guide rail 27. When gear machining is required, the first motor 4 drives the first gear 22 to rotate the first gear ring, thereby controlling the rotation of the machining ring platform 3. This causes one of the lower support parts 5 to rotate to the position corresponding to the gear shaper 73 or other gear machining equipment. The third electric lifting rod 24 drives the positioning pin 25 into the positioning hole 26, thus fixing the machining ring platform 3 and preventing it from rotating during machining, providing stability. After machining is completed, the third electric lifting rod 24 is shortened to separate the positioning pin 25 from the positioning hole 26, allowing the first motor 4 to drive the machining ring platform 3 to rotate. The first guide rail 27 and the first guide rail groove ensure stable rotation of the machining ring platform 3.

[0027] A second drive ring groove 28 is provided around the wall of the mounting groove 6. An external gear ring 29 is provided around the outer wall of the lower support 5 corresponding to the second drive ring groove 28. A second motor 12 is installed in the second drive ring groove 28, and a second gear 30 is installed on the output shaft of the second motor 12. The second gear 30 meshes with the external gear ring 29 for transmission. During processing, it is necessary to drive the steel billet and the gear shaping cutter of the gear shaping machine 73 to rotate synchronously. In this application, the second motor 12 drives the second gear 30 to rotate, so that the second gear 30 drives the external gear ring 29, thereby driving the lower support 5 to rotate. The second motor 12 is a synchronous motor, which enables the steel billet to rotate synchronously with the gear shaping cutter of the gear shaping machine 73.

[0028] A bottom ring 31 is provided around the outer wall of the upper end of the lower support part 5. The bottom ring 31 is positioned on the upper side of the base 1, and the upper side of the bottom ring 31 is flush with the upper end of the lower support part 5. The lower side of the bottom ring 31 is slidably connected to the upper side of the base 1 through a plane bearing 32. A second guide rail 33 in the shape of an annulus is provided at the bottom of the mounting groove 6, and a second guide rail groove that is slidably connected to the second guide rail 33 is provided at the lower end of the lower support part 5. By providing the bottom ring 31, the lower side of the processed steel billet can be supported, thus making the steel billet more stable during processing. By providing the plane bearing 32 and cooperating with the second guide rail 33 and the second guide rail groove, the lower support part 5 can rotate more smoothly.

[0029] A mounting part 34 is provided above the base 1 for the supporting cylinder 2. A second lifting cavity 35 is provided within the mounting part 34. A first lifting cylinder 36 is slidably mounted within the second lifting cavity 35. An upper through hole 37 communicating with the second lifting cavity 35 is provided at the upper end of the mounting part 34, and a lower through hole 38 communicating with the second lifting cavity 35 is provided at the lower end of the mounting part 34. An upper fixed shaft 14 is slidably mounted within the lower through hole 38, and its upper end is coaxially connected to the lower end of the first lifting cylinder 36. A drive hole 39 is recessed at the upper end of the first lifting cylinder 36. A third motor 18 is mounted above the mounting part 34 with its output shaft facing downwards. A drive rod 40 is mounted at the end of the output shaft of the third motor 18. The first lifting cylinder 36 is positioned within the drive hole 39 through the upper through hole 37. A lifting ring groove 41 is provided around the outer wall of the first lifting cylinder 36. A third lifting cavity 42 is also vertically provided within the mounting part 34. A second lifting cylinder 43 is slidably positioned within the third lifting cavity 42. A first connecting hole 44 is provided at the upper end of the mounting part 34, communicating with the third lifting cavity 42. The output shaft of the second electric lifting rod 17 passes through the first connecting hole 44 into the third lifting cavity 42 and connects with the second lifting cylinder 43. A vertically positioned slot 46 connects the third lifting cavity 42 and the second lifting cavity 35. A sliding lever 47 is slidably positioned within the slot 46. One end of the lever 47 is placed within the lifting ring groove 41, and the other end is connected to the second lifting cylinder 43. The surface of the drive rod 40 is provided with a spline, and the inner wall of the drive hole 39 is provided with a spline groove that matches the spline. This allows the first lifting cylinder 36 to rotate when the drive rod 40 rotates. When fixing the steel billet, the second electric lifting rod 17 drives the second lifting cylinder 43 to move downwards. This, in turn, with the help of the actuating rod 47 and the lifting ring groove 41, drives the first lifting cylinder 36 to move downwards, causing the upper fixed shaft 14 to move downwards. This aligns the threaded rod 16 at the lower end of the upper fixed shaft 14 with the threaded hole 11. Then, the third motor 18 is started to rotate the first lifting cylinder 36, causing the threaded rod 16 to rotate and screw into the threaded hole 11. Finally, the pressure plate 15, in conjunction with the lower support part 5, clamps the steel billet, thus fixing the billet to the lower support part 5 for synchronous rotation and processing. After fixing the steel billet, the third motor 18 is de-energized. After de-energization, the third motor 18 does not have a self-locking function, preventing the output shaft of the third motor 18 from being unable to rotate freely during the power-off process, which would affect the rotation of the upper fixed shaft 14.Furthermore, the third motor 18 has the ability to rotate in both directions. After the steel billet is processed into a gear, the third motor 18 is reversed and, in conjunction with the second electric lifting rod 17, drives the upper fixed shaft 14 to move upward, thereby separating the threaded rod 16 from the threaded hole 11. In this way, the processed gear can be moved to the position of the loading and unloading assembly by rotating the processing ring 3, the processed gear can be unloaded, and an unprocessed steel billet can be placed on it. At the same time, the steel billet already placed on the other lower support 5 rotates to the lower fixed shaft 14 for processing during the rotation of the processing ring 3. This makes the entire processing process continuous and greatly improves the processing efficiency.

[0030] A pressure chamber 48 is provided inside the second lifting cylinder 43. A second connecting hole 49, which communicates with the pressure chamber 48, is provided at the upper end of the second lifting cylinder 43. The lower end of the output shaft of the second electric lifting rod 17 passes through the second connecting hole 49 and is placed inside the pressure chamber 48. A push plate 50 is connected inside the pressure chamber 48. A pressure sensor 51 is installed at the bottom of the pressure chamber 48. The push plate 50 abuts against the pressure sensor 51 via a first spring 52. A second spring 76 is sleeved inside the second lifting cavity 35 on the upper fixed shaft 14. The upper end of the second spring 76 is connected to the lower end of the first lifting cylinder 36, and the lower end is connected to the lower cavity wall of the second lifting cavity 35. With the help of the first spring 52 and the pressure sensor 51, when connecting the threaded rod 16 and the threaded hole 11, a certain downward pressure is applied to the second lifting cylinder 43 by the second electric lifting rod 17, allowing the threaded rod 16 to be smoothly screwed into the threaded hole 11. When separating the threaded rod 16 and the threaded hole 11, the second electric lifting rod 17 is shortened in advance to avoid affecting the upward movement of the upper fixed shaft 14. During disassembly, an upward thrust is applied with the help of the second spring 76 to drive the first lifting cylinder 36 to move upward as it is rotated in the opposite direction, thus improving the smoothness of disassembly.

[0031] The loading and unloading assembly includes a fixed arm 53, a movable plate 54, a first ball screw worktable 55, a second ball screw worktable 56, and a fourth electric lifting rod 57. The first ball screw worktable 55 is horizontally arranged on the upper side of the fixed arm 53. The fourth electric lifting rod 57 is connected to the first slider 58 of the first ball screw worktable 55. The output shaft of the fourth electric lifting rod 57 is downward and connected to the upper side of the movable plate 54. The second ball screw worktable 56 is installed on the lower side of the movable plate 54. The screw of the second ball screw worktable 56 has opposite thread directions from the middle to both ends. The screw of the second ball screw worktable 56 has two second sliders 59 threadedly connected to both sides of the middle part. Each of the two second sliders 59 has a clamping block 60 on its lower side. Each of the two clamping blocks 60 has an arc-shaped clamping groove on its opposite side. A loading conveyor belt and a unloading conveyor belt are respectively arranged on both sides of the first ball screw worktable 55. By controlling the movement of the first slider 58 of the first ball screw worktable 55, the moving plate 54 is moved to the upper part of the lower support 5. The fourth electric lifting rod 57 moves down, so that the two clamping blocks 60 are placed on both sides of the processed gear. Then, the second slider 59 is controlled by the second ball screw worktable 56 to move closer to each other, thereby clamping the processed gear. Then, the fourth electric lifting rod 57 drives the moving plate 54 to move up a certain distance. Then, the first slider 58 of the first ball screw worktable 55 drives the moving plate 54 to move onto the unloading conveyor belt, and the two clamping blocks 60 separate to place the processed gear onto the unloading conveyor belt. Then, the first slider 58 is driven to move the moving plate 54 to the feeding conveyor belt. The new steel billet is clamped by two clamping blocks 60, and the moving plate 54 is moved above the lower support part 5 by the first slider 58. The steel billet is placed on the upper side of the lower support part 5, and the center hole of the steel billet is aligned with the positioning shaft 10. Then, the positioning shaft 10 is driven by the first electric lifting rod 8 to pass into the center hole of the steel billet. After the previous steel billet is processed, the prepared steel billet is rotated to the side of the gear shaper 73 for gear processing.

[0032] A high-pressure air ring 61 is movably sleeved on the outer wall of the upper fixed shaft 14 above the pressure plate 15. A first guide rod 62 is vertically arranged on the upper side of the high-pressure air ring 61, and a second guide rod 63 is vertically arranged on the lower side of the mounting part 34. A guide ring 64 is installed at the lower end of the second guide rod 63. The first guide rod 62 is slidably arranged in the guide ring 64. An air distribution chamber 65 is provided inside the high-pressure air ring 61. A first air nozzle 66 is provided on the side of the air distribution ring away from the supporting cylinder 2, and a second air nozzle 67 is provided on the lower side of the air distribution ring. The first air nozzle 66 passes through a first channel 68 and a distribution chamber 65. The air chamber 65 is connected, and the second air nozzle 67 is connected to the air distribution chamber 65 through the second channel 69. The connection between the first channel 68 and the second channel 69 and the air distribution chamber 65 is located on the same side wall of the air distribution chamber 65. A control plate 70 is attached to the side wall of the air distribution chamber 65. A vent hole 71 is provided on the control plate 70. A fifth electric lifting rod 77 is provided on the air distribution ring to control the movement of the control plate 70 so that the vent hole 71 is aligned with the first channel 68 or the second channel 69. The air distribution chamber 65 is connected to an external high-pressure air supply device through an air inlet channel 72. During gear machining, the gear shaper 73's gear cutter cuts the steel billet discontinuously. During the cutting process, cooling oil cools both the gear shaper 73 and the steel billet, and this cooling process also washes away metal chips from the cutter's kerf. However, for some small metal chips, and those that are firmly attached during machining, the free flow of cooling oil is insufficient to remove them. These metal chips affect the machining quality. During the cutting process, friction between the cutter kerf and the gear teeth affects the smoothness of the tooth surface and generates more burrs. Therefore, this application uses a first air nozzle 66 and a second air nozzle 67 to spray high-pressure gas to flush the cutter kerf of the gear shaper and the surface of the machined gear, thereby cleaning away metal chips and improving machining quality. Specifically, when the gear shaper cutter moves upward, high-pressure air is sprayed through the first air nozzle 66 to clean the tooth gaps of the cutter. During the air spraying process, the flowing cooling oil quickly cools the cutter and removes metal debris by impacting the tooth gaps. When the cutter moves downward, the second air nozzle 67 blows away the cooling oil on the surface of the gear being machined. The oil is blown away directly from the top of the gear, rather than flowing down between the machined teeth. This prevents metal debris washed down from the cutter's tooth gaps from falling onto the top of the gear and flowing into the tooth gaps. The fifth electric lifting rod 77 moves the control plate 70 against the wall of the air distribution chamber 65, which controls the alignment of the vent 71 with either the first channel 68 or the second channel 69, thereby controlling whether the high-pressure gas is ejected from the first air nozzle 66 or the second air nozzle 67.

[0033] A gear shaper 73 for machining gears is mounted on one side of the base 1. A proximity sensor 75 is mounted on the upper side of the high-pressure air ring 61 via a support frame 74, and the proximity sensor 75 is aligned with the gear shaper cutter of the gear shaper 73. By setting the proximity sensor 75, the position of the gear shaper cutter can be monitored, thereby coordinating with the control of the fifth electric lifting rod 77 to control the position of the control board 70, and thus perform corresponding air jetting. The proximity sensor 75 can also be replaced with other types of sensors that can monitor the distance between itself and the gear shaper cutter, thus facilitating the determination of the machining action at this time.

[0034] Although the invention has been described herein with reference to several illustrative embodiments, it should be understood that many other modifications and implementations can be devised by those skilled in the art, which will fall within the scope and spirit of the principles disclosed herein. More specifically, various variations and modifications can be made to the components and / or layout of the subject matter arrangement within the scope of the disclosure, drawings, and claims. Besides variations and modifications to the components and / or layout, other uses will be apparent to those skilled in the art.

Claims

1. A tooling fixture for gear machining, characterized in that, The system includes a base (1), on which a supporting cylinder (2) is vertically mounted at the center of its upper side. A processing ring platform (3) is arranged around the supporting cylinder (2) on the upper side of the base (1). The processing ring platform (3) is driven by a first motor (4) to rotate a ring (19) around the supporting cylinder (2). At least two lower support parts (5) and a mounting groove (6) for mounting the lower support parts (5) are provided on the upper side of the processing ring platform (3). A first lifting cavity (7) is provided inside the lower support part (5). A first electric lifting rod (8) is installed vertically upward at the bottom of the first lifting cavity (7). A mounting plate (9) is installed at the upper end of the first electric lifting rod (8). A positioning shaft (10) coaxial with the lower support part (5) is installed on the upper side of the mounting plate (9). A threaded hole (11) is coaxially provided at the upper end of the positioning shaft (10). The mounting slot (6) is provided with a second motor (12) for driving the lower support part (5) to rotate along the vertical axis. The upper end of the lower support part (5) is provided with a lifting hole (13) that communicates with the first lifting cavity (7). The positioning shaft (10) is placed in the lifting hole (13). The support cylinder (2) is provided with an upper fixed shaft (14) above the processing ring (3). The lower end of the upper fixed shaft (14) is provided with a pressure plate (15). The lower end of the pressure plate (15) is provided with a threaded rod (16) that matches the threaded hole (11). The upper end of the positioning shaft (10) is provided with a second electric lifting rod (17) for driving the positioning shaft (10) to move up and down, and a third motor (18) for driving the positioning shaft (10) to rotate. The support cylinder (2) is provided with a loading and unloading assembly on the side away from the upper fixed shaft (14).

2. The tooling fixture for gear machining according to claim 1, characterized in that: A drive ring (19) is provided around the upper side of the base (1) surrounding the supporting cylinder (2). The inner wall of the processing ring platform (3) slides against the outer wall of the drive ring (19). The outer wall of the drive ring (19) is recessed and provided with a first drive ring groove (20). An internal gear ring (21) is provided on the inner wall of the processing ring platform (3) at a position corresponding to the first drive ring groove (20). The first motor (4) is installed in the first drive ring groove (20). A first gear (22) is installed on the output shaft of the first motor (4). The first gear (22) and the internal gear ring (21) are connected. In the meshing transmission, the outer wall of the drive ring (19) is recessed with a mounting hole (23), a third electric lifting rod (24) is installed in the mounting groove (6), a positioning pin (25) is installed at the output shaft end of the third electric lifting rod (24), and the outer wall of the processing ring platform (3) is provided with at least two positioning holes (26) that match the positioning pin (25); a first guide rail (27) is provided around the support cylinder (2) on the upper side of the base (1), and a first guide rail groove is provided on the lower side of the processing ring platform (3) that is slidably connected to the first guide rail (27).

3. The tooling fixture for gear machining according to claim 1, characterized in that: A second drive ring groove (28) is provided around the wall of the mounting groove (6), and an external gear ring (29) is provided around the outer wall of the lower support (5) corresponding to the second drive ring groove (28). The second motor (12) is installed in the second drive ring groove (28), and a second gear (30) is installed on the output shaft of the second motor (12). The second gear (30) meshes with the external gear ring (29) for transmission.

4. The tooling fixture for gear machining according to claim 1, characterized in that: A bottom ring (31) is provided around the outer wall of the upper end of the lower support part (5). The bottom ring (31) is placed on the upper side of the base (1), and the upper side of the bottom ring (31) is flush with the upper end of the lower support part (5). The lower side of the bottom ring (31) is slidably connected to the upper side of the base (1) through a plane bearing (32). A second guide rail (33) in the shape of an annular shape is provided at the bottom of the mounting groove (6). A second guide rail groove that is slidably connected to the second guide rail (33) is provided at the lower end of the lower support part (5).

5. A tooling fixture for gear machining according to claim 1, characterized in that: The supporting cylinder (2) is provided with a mounting part (34) above the base (1). The mounting part (34) is provided with a second lifting cavity (35). The first lifting cylinder (36) is slidably arranged in the second lifting cavity (35). The upper end of the mounting part (34) is provided with an upper through hole (37) communicating with the second lifting cavity (35). The lower end of the mounting part (34) is provided with a lower through hole (38) communicating with the second lifting cavity (35). The upper fixed shaft (14) is slidably arranged in the lower through hole (38). The upper end of the upper fixed shaft (14) is coaxially connected with the lower end of the first lifting cylinder (36). The upper end of the first lifting cylinder (36) is recessed and provided with a driving hole (39). The third motor (18) is installed above the mounting part (34) with its output shaft facing downward. The output shaft end of the third motor (18) is provided with a driving rod (40). The upper through hole (37) is placed inside the drive hole (39), and a lifting ring groove (41) is provided around the outer wall of the first lifting cylinder (36); a third lifting cavity (42) is also vertically provided inside the mounting part (34), and a second lifting cylinder (43) is slidably arranged inside the third lifting cavity (42). A first connecting hole (44) connected to the third lifting cavity (42) is provided at the upper end of the mounting part (34). The output shaft of the second electric lifting rod (17) passes through the first connecting hole (44) into the third lifting cavity (42) and is connected to the second lifting cylinder (43). A strip hole (46) is connected between the third lifting cavity (42) and the second lifting cavity (35). The strip hole (46) is vertically arranged, and a toggle rod (47) is slidably arranged inside the strip hole (46). One end of the toggle rod (47) is placed inside the lifting ring groove (41), and the other end is connected to the second lifting cylinder (43).

6. A tooling fixture for gear machining according to claim 5, characterized in that: The second lifting cylinder (43) is provided with a pressure chamber (48). The upper end of the second lifting cylinder (43) is provided with a second connecting hole (49) that communicates with the pressure chamber (48). The lower end of the output shaft of the second electric lifting rod (17) passes through the second connecting hole (49) and is placed in the pressure chamber (48). A push plate (50) is connected in the pressure chamber (48). A pressure sensor (51) is installed at the bottom of the pressure chamber (48). The push plate (50) abuts against the pressure sensor (51) through a first spring (52). The upper fixed shaft (14) is fitted with a second spring (76) in the second lifting chamber (35). The upper end of the second spring (76) is connected to the lower end of the first lifting cylinder (36), and the lower end is connected to the lower cavity wall of the second lifting chamber (35).

7. The tooling fixture for gear machining according to claim 1, characterized in that: The loading and unloading assembly includes a fixed arm (53), a movable plate (54), a first ball screw worktable (55), a second ball screw worktable (56), and a fourth electric lifting rod (57). The first ball screw worktable (55) is horizontally arranged on the upper side of the fixed arm (53). The fourth electric lifting rod (57) is connected to the first slider (58) of the first ball screw worktable (55). The output shaft of the fourth electric lifting rod (57) is downward and connected to the upper side of the movable plate (54). The second ball screw worktable (56) is installed on the lower side of the movable plate (54). The screw of the second ball screw worktable (56) has opposite thread directions from the middle to both ends. The screw of the second ball screw worktable (56) is threadedly matched with two second sliders (59) on both sides of the middle. Each of the two second sliders (59) has a clamping block (60) on its lower side. Each of the two clamping blocks (60) has an arc-shaped clamping groove on its opposite side.

8. A tooling fixture for gear machining according to claim 1, characterized in that: A high-pressure air ring (61) is movably sleeved on the upper side of the pressure plate (15) on the outer wall of the upper fixed shaft (14). A first guide rod (62) is vertically arranged on the upper side of the high-pressure air ring (61), and a second guide rod (63) is vertically arranged on the lower side of the mounting part (34). A guide ring (64) is installed at the lower end of the second guide rod (63). The first guide rod (62) is slidably arranged in the guide ring (64). An air distribution chamber (65) is provided in the high-pressure air ring (61). A first air nozzle (66) is provided on the side of the air distribution ring away from the supporting cylinder (2). A second air nozzle (67) is provided on the lower side of the air distribution ring. The first air nozzle (66) passes through the first channel (68) and the... The air distribution chamber (65) is connected, and the second air nozzle (67) is connected to the air distribution chamber (65) through the second channel (69). The connection between the first channel (68) and the second channel (69) and the air distribution chamber (65) is located on the same side wall of the air distribution chamber (65). The air distribution chamber (65) is fitted with a control plate (70) on the side wall. The control plate (70) is provided with a vent hole (71). The air distribution ring is provided with a fifth electric lifting rod (77) for controlling the movement of the control plate (70) so that the vent hole (71) is aligned with the first channel (68) or the second channel (69). The air distribution chamber (65) is connected to an external high-pressure air supply device through an air inlet channel (72).

9. A tooling fixture for gear machining according to claim 8, characterized in that: A gear shaper (73) for processing gears is mounted on one side of the base (1). A proximity sensor (75) is mounted on the upper side of the high-pressure air ring (61) via a support frame (74). The proximity sensor (75) is aligned with the gear shaper cutter of the gear shaper (73).

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