Tool for machining planet carrier

By designing a multi-functional adjustable planetary carrier fixture, 360-degree rotation and multi-angle adjustment of the planetary carrier were achieved, solving the problems of low processing accuracy and efficiency in existing technologies, and improving production efficiency and safety.

CN121733451APending Publication Date: 2026-03-27ZHANGQIU KAIHUI FORGING CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-09-05
Publication Date
2026-03-27

AI Technical Summary

Technical Problem

The existing planetary carrier machining process suffers from repeated clamping, which affects accuracy and efficiency. The use of multiple toolings leads to scratches and slow production progress, wasting manpower and resources.

Method used

A machining planetary carrier tooling was designed, comprising a tooling bracket, a fixed base, a support, a servo motor, a clamping seat, and a multi-functional adjustment structure, enabling 360-degree rotation and multi-angle adjustment, and allowing for continuous machining in conjunction with a CNC machine tool.

Benefits of technology

It improves processing accuracy and efficiency, reduces manual operation, lowers safety hazards, and avoids problems such as scratches and frequent tooling changes.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention discloses a planet carrier machining tool, and belongs to the technical field of machining tools.The planet carrier machining tool comprises a tool support, a blank supporting mechanism used for supporting a metal planet carrier is installed on the inner side of a supporting part, a fixed clamping seat is rotationally connected to the supporting part, and a movable clamping seat is slidably installed on the fixed clamping seat; a clamping control mechanism for controlling the movable clamping seat to open and close is mounted on the fixed clamping seat; the movable clamping base is further provided with a rotation driving mechanism used for driving the metal planet carrier to rotate. An auxiliary positioning mechanism is fixedly installed on the top of the fixed clamping base and used for auxiliary clamping and positioning in the machining process of the metal planet carrier. By designing a multifunctional adjusting structure, the tool can be matched with a numerical control machine tool to complete multi-procedure continuous machining of the metal planet carrier, multiple times of clamping are not needed, the machining precision is guaranteed, and meanwhile the overall machining efficiency is also guaranteed.
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Description

Technical Field

[0001] This invention belongs to the field of machining tooling technology, specifically relating to a machining tooling for planetary carriers. Background Technology

[0002] The planet carrier is a crucial component in planetary gear transmission systems. It is typically a frame that supports the planetary gears and allows them to rotate about a central axis. Planet carriers are usually used in conjunction with the sun gear and internal ring gear, playing a critical role in many mechanical transmission systems, particularly in automotive transmissions, robotics, aerospace, and some heavy machinery.

[0003] Planetary carriers are typically designed with high strength and wear resistance because they withstand constantly changing loads and pressures. Their structure is relatively complex, with machining locations usually including a central shaft hole, multiple planetary shaft holes (evenly distributed), mounting surfaces, and complex lightweight structures (such as stiffeners and windows). Therefore, their machining involves multiple processes such as turning, milling, drilling, boring, and reaming. Due to these diverse processes, various tooling is used in planetary carrier machining. While multiple toolings can complete the machining of planetary carriers, several problems arise. Using multiple toolings requires repeated clamping of the planetary carrier, affecting overall machining accuracy and easily leaving scratches on the product surface. Furthermore, using different toolings also impacts the overall production schedule, requiring frequent tooling changes, which severely affects production efficiency and wastes manpower and resources. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to overcome the shortcomings of the prior art and provide a tooling for machining planetary carriers.

[0005] The technical solution adopted to solve the above technical problems is: a tooling for processing planetary carriers, including a tooling bracket, the tooling bracket including a fixed base, an integrated support part on one side of the top of the fixed base, a blank support mechanism for supporting the metal planetary carrier installed on the inner side of the support part, and a first servo motor installed on the top of the outer side of the support part. The first servo motor is used for the rotation drive of the fixed clamp, thereby driving the entire metal planetary carrier to rotate 360 ​​degrees. A fixed clamp is rotatably connected to the support, and the output end of the first servo motor is connected to one end of the fixed clamp. A movable clamp is slidably installed on the fixed clamp, and a clamping control mechanism for controlling the opening and closing of the movable clamp is installed on the fixed clamp. During operation, the clamping control mechanism can drive the movable clamp to open and close, thereby clamping and releasing the metal planetary carrier; The movable clamp is also equipped with a rotary drive mechanism for driving the metal planetary carrier to rotate. An auxiliary positioning mechanism is fixedly installed on the top of the fixed clamping base for auxiliary clamping and positioning during the metal planetary carrier processing.

[0006] Furthermore, the support portion is provided with a storage groove, and a through mounting hole is also provided near the top of the support portion.

[0007] Through the above technical solution, during the processing stage, the blank support mechanism can be retracted into the storage groove, so as not to affect the normal machining. In addition, the mounting hole opened at the top of the support part is used to fix the mounting and positioning of the clamp, so that it can rotate synchronously under the drive of the first servo motor.

[0008] Furthermore, the blank support mechanism includes a rotating tray rotatably connected to the top of the inner side of the storage groove, and a control cylinder is rotatably connected to the storage groove, with the end of the piston rod of the control cylinder rotatably connected to the rotating tray.

[0009] Through the above technical solution, the billet support mechanism is used to provide auxiliary support for the metal planetary carrier during the loading and unloading stage. Since the metal planetary carrier itself has a certain weight, during loading and unloading, the control cylinder will drive the rotating pallet to unfold horizontally through the piston rod. At this time, the rotating pallet can support the bottom of the metal planetary carrier, making it easier for operators to load and unload the material. There is no need for manual lifting for a long time, which not only saves time and effort, but also reduces safety hazards.

[0010] Furthermore, the fixed clamp includes a connecting shaft passing through the mounting hole, one end of the connecting shaft is fixedly connected to a connecting part, the other end of the connecting part is fixedly connected to a fixed clamping arm, the rear end of the fixed clamping arm is fixedly connected to a first fixed seat, and the inner side of the fixed clamping arm is rotatably connected to a plurality of evenly distributed first movable rollers.

[0011] Through the above technical solution, the fixed clamp and the movable clamp, as clamping actuators, need to cooperate with each other during operation. Driven by the clamping control mechanism, they can clamp and fix the metal planetary carrier. Furthermore, driven by the first servo motor, the clamped metal planetary carrier can rotate 360 ​​degrees in the X-axis direction, thereby allowing for more flexible adjustment of the machining angle of the metal planetary carrier. In addition, multiple first movable rollers are rotatably connected to the inner side of the fixed clamp arm. During the machining process, driven by the rotary drive mechanism, the metal planetary carrier can also rotate 360 ​​degrees in the Y-axis direction, thus giving the fixture better flexible adjustment performance. Combined with CNC machine tools, it can complete the continuous machining of more complex structures.

[0012] Furthermore, the movable clamping base includes a second fixed base, on which multiple through-hole limiting circular holes are provided. A movable clamping arm is also fixedly connected to the second fixed base. Multiple evenly distributed second movable rollers are rotatably connected to the inner side of the movable clamping arm, and a mounting slot is provided on the outer side of the movable clamping arm.

[0013] Through the above technical solution, the overall structure of the movable clamp is basically the same as that of the fixed clamp. In use, it can cooperate with the fixed clamp to quickly clamp and fix the metal planetary carrier.

[0014] Furthermore, both the fixed clamping arm and the movable clamping arm are designed with an arc shape, and the front end between the fixed clamping arm and the movable clamping arm is provided with an opening structure for machine tool processing.

[0015] By designing both the fixed and movable clamping arms into symmetrical arc-shaped structures, the metal planetary carrier can be clamped and fixed. At the same time, the open structure at the front end facilitates the milling of the side wall of the metal planetary carrier by the machine tool spindle without interfering with normal processing. This makes the fixture more flexible and adjustable, and also facilitates the processing of the metal planetary carrier at various angles and positions.

[0016] Furthermore, the clamping control mechanism includes an adjusting cylinder mounted on a first fixed base, with a mounting block fixedly connected to the end of the piston rod of the adjusting cylinder, and multiple limiting rods fixedly connected to the inner side of the first fixed base.

[0017] Through the above technical solution, the clamping control mechanism is mainly used for the opening and closing control of the movable clamp. During operation, it can drive the entire movable clamp to move horizontally through the mounting block at the end of the piston rod, thereby moving the movable clamp closer to or away from the fixed clamp.

[0018] Furthermore, the plurality of the limiting rods respectively pass through the corresponding limiting circular holes.

[0019] Through the above technical solution, the setting of multiple limit rods can better limit and support the movement of the movable clamp, so as to ensure the stability and reliability of the clamp during the working process.

[0020] Furthermore, the rotary drive mechanism includes a second servo motor fixedly installed in the mounting slot, a drive wheel fixedly installed at the bottom end of the output shaft of the second servo motor, and an anti-slip rubber ring sleeved on the outer wall of the drive wheel.

[0021] Through the above technical solution, the rotary drive mechanism is used to drive the rotation of the metal planetary carrier. The drive wheel fixed at the bottom of the output shaft of the second servo motor can support the bottom edge of the metal planetary carrier. At the same time, during the rotation, it can also drive the metal planetary carrier to rotate 360 ​​degrees around the Y-axis through the friction between it and the anti-slip rubber ring, thereby facilitating the machine tool to perform milling and drilling on different positions of the metal planetary carrier.

[0022] Furthermore, the auxiliary positioning mechanism includes a fixed bracket fixed to the top of the connecting part, a limit rod fixedly connected to the fixed bracket, a return spring sleeved on the outer wall of the limit rod, a limit nut threaded to the other end of the limit rod, a roller bracket sleeved on the outer wall of the limit rod, a limit through hole for the limit rod to pass through at the end of the roller bracket, and limit rollers rotatably connected to the front and rear ends of the other side of the roller bracket.

[0023] Through the above technical solution, the auxiliary positioning mechanism also serves as an auxiliary structure. During the processing, it can assist in clamping and limiting the position of the side wall boss of the metal planetary carrier. When the metal planetary carrier is placed on the rotating pallet, the adjusting cylinder will drive the movable clamp to clamp it. During this process, the side wall boss of the metal planetary carrier will contact the two limiting rollers, and further drive the roller bracket to squeeze the return spring. Under the elastic counter-pushing force of the return spring, the two limiting rollers can be pushed in the opposite direction to clamp the side wall of the metal planetary carrier, thereby improving its stability during the processing. In addition, since the two limiting rollers can also rotate, the metal planetary carrier will not interfere with or obstruct it during rotation, nor will it leave scratches on its side wall.

[0024] The beneficial effects of the present invention are as follows: (1) By designing a fixed clamping arm and a movable clamping arm with an arc-shaped structure, the present invention can not only clamp and fix the metal planetary carrier, but also facilitate the milling of the side wall of the metal planetary carrier by the machine tool spindle, thus making the fixture more flexible and adjustable, and also facilitating the processing of the metal planetary carrier at various angles and positions; (2) By designing a first servo motor and a rotary drive mechanism, the present invention enables the fixture to drive the metal planetary carrier to rotate 360 ​​degrees around the X-axis and Y-axis respectively, thereby facilitating the processing of the metal planetary carrier by the machine tool spindle. (3) The invention designs a multi-functional adjustment structure so that the tooling can work with CNC machine tools to complete the multi-process continuous processing of the metal planetary carrier without having to clamp it multiple times. This ensures both the processing accuracy and the overall processing efficiency. (4) The invention designs a blank support mechanism so that the rotating pallet can support the bottom of the metal planetary carrier when loading and unloading, making it easier for operators to load and unload the material without having to manually lift it for a long time. This not only saves time and effort but also reduces safety hazards. Attached Figure Description

[0025] Figure 1 This is a first-view structural diagram of the present invention; Figure 2 This is a second-view structural diagram of the present invention; Figure 3 This is a third-view structural diagram of the present invention; Figure 4 This is the front view of the present invention; Figure 5 This is a cross-sectional view of the present invention; Figure 6 This is a schematic diagram of the tooling bracket and blank support mechanism of the present invention; Figure 7 This is a first-view structural diagram of the main structure of the present invention; Figure 8 This is a second-view structural diagram of the main structure of the present invention; Figure 9 This is a first-view structural diagram of the clamp of the present invention; Figure 10 This is a second-view structural diagram of the clamp of the present invention; Figure 11 This is a schematic diagram of the installation structure of the clamping control mechanism of the present invention; Figure 12 This is a schematic diagram of the structure of the fixing clamp of the present invention; Figure 13 This is a schematic diagram of the auxiliary positioning mechanism of the present invention; Figure 14 This is a schematic diagram of the structure of the finished planetary carrier of the present invention.

[0026] Reference numerals: 1. Tooling bracket; 101. Fixed base; 102. Support part; 103. Storage slot; 104. Mounting hole; 2. Blank support mechanism; 201. Rotating pallet; 202. Control cylinder; 3. First servo motor; 4. Fixed clamp; 401. Connecting shaft; 402. Connecting part; 403. Fixed clamp arm; 404. First fixed seat; 405. First movable roller; 5. Movable clamp; 501. Second fixed seat; 502. Limiting hole; 503. Movable clamp arm; 50 4. Second movable roller; 505. Mounting slot; 6. Clamping control mechanism; 601. Adjusting cylinder; 602. Mounting block; 603. Limiting rod; 7. Rotary drive mechanism; 701. Second servo motor; 702. Drive wheel; 703. Anti-slip rubber ring; 8. Auxiliary positioning mechanism; 801. Fixed bracket; 802. Limiting rod; 803. Return spring; 804. Limiting nut; 805. Roller bracket; 806. Limiting through hole; 807. Limiting roller; 9. Metal planetary carrier. Detailed Implementation

[0027] 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.

[0028] like Figures 1-14 As shown, a planetary carrier machining fixture of this embodiment includes a fixture support 1. The fixture support 1 includes a fixed base 101. An integral support part 102 is provided on one side of the top of the fixed base 101. A blank support mechanism 2 for supporting the metal planetary carrier 9 is installed on the inner side of the support part 102. A first servo motor 3 is installed on the top of the outer side of the support part 102. The first servo motor 3 is used to drive the rotation of the fixed clamp 4, thereby driving the entire metal planetary carrier 9 to rotate 360 ​​degrees.

[0029] In this embodiment, the support part 102 is provided with a storage groove 103, and a through mounting hole 104 is also provided on the support part 102 near the top. During the processing stage, the blank support mechanism 2 can be retracted into the storage groove 103, so as not to affect the normal machining. In addition, the mounting hole 104 provided at the top of the support part 102 is used to fix the mounting and positioning of the clamp 4, so that it can rotate synchronously under the drive of the first servo motor 3.

[0030] Regarding billet support mechanism 2, refer to... Figures 5-6The billet support mechanism 2 includes a rotating pallet 201 rotatably connected to the top of the inner side of the receiving groove 103. The receiving groove 103 is rotatably connected to a control cylinder 202, and the end of the piston rod of the control cylinder 202 is rotatably connected to the rotating pallet 201. The billet support mechanism 2 is used for auxiliary support of the metal planetary carrier 9 during the loading and unloading stage. Since the metal planetary carrier 9 itself has a certain weight, during loading and unloading, the control cylinder 202 will drive the rotating pallet 201 to unfold horizontally through the piston rod. At this time, the rotating pallet 201 can lift the bottom of the metal planetary carrier 9, which makes it easier for operators to load and unload the billet without the need for manual lifting for a long time. This not only saves time and effort but also reduces safety hazards.

[0031] Regarding the fixed clamp 4, refer to... Figures 9-12 A fixed clamp 4 is rotatably connected to the support 102. The fixed clamp 4 includes a connecting shaft 401 that passes through the mounting hole 104. One end of the connecting shaft 401 is fixedly connected to a connecting part 402, and the other end of the connecting part 402 is fixedly connected to a fixed clamping arm 403. A first fixed seat 404 is fixedly connected to the rear end of the fixed clamping arm 403. A plurality of evenly distributed first movable rollers 405 are rotatably connected to the inner side of the fixed clamping arm 403. The fixed clamp 4 and the movable clamp 5 serve as clamping actuators and need to cooperate with each other during operation. Driven by the clamping control mechanism 6, they can complete the clamping of metal. The planetary carrier 9 is clamped and fixed. Furthermore, driven by the first servo motor 3, the clamped and fixed metal planetary carrier 9 can rotate 360 ​​degrees in the X-axis direction, thereby allowing for more flexible adjustment of the machining angle of the metal planetary carrier 9. In addition, multiple first movable rollers 405 are rotatably connected to the inner side of the fixed clamping arm 403. During the machining process, driven by the rotary drive mechanism 7, the metal planetary carrier 9 can also rotate 360 ​​degrees in the Y-axis direction, thus giving the fixture better flexible adjustment performance. In conjunction with the CNC machine tool, it can complete the continuous machining of more complex structures.

[0032] Regarding the movable bracket 5, please refer to... Figures 5-12 The output end of the first servo motor 3 is connected to one end of the fixed clamp 4. A movable clamp 5 is slidably mounted on the fixed clamp 4. The movable clamp 5 includes a second fixed seat 501. The second fixed seat 501 has multiple through-hole limiting round holes 502. A movable clamp arm 503 is also fixedly connected to the second fixed seat 501. Multiple evenly distributed second movable rollers 504 are rotatably connected to the inner side of the movable clamp arm 503. An installation slot 505 is provided on the outer side of the movable clamp arm 503. The overall structure of the movable clamp 5 is basically the same as that of the fixed clamp 4. In use, it can cooperate with the fixed clamp 4 to quickly clamp and fix the metal planetary carrier 9.

[0033] In this embodiment, both the fixed clamping arm 403 and the movable clamping arm 503 are designed with an arc shape, and the front end of the fixed clamping arm 403 and the movable clamping arm 503 is provided with an opening structure for machine tool processing. By designing both the fixed clamping arm 403 and the movable clamping arm 503 as symmetrical arc shapes, the metal planetary carrier 9 can be clamped and fixed. At the same time, the opening structure at its front end also facilitates the milling of the side wall of the metal planetary carrier 9 by the machine tool spindle without interfering with normal processing. This makes the fixture more flexible and adjustable, and also facilitates the processing of the metal planetary carrier 9 at various angles and positions.

[0034] Regarding clamping control mechanism 6, refer to... Figures 11-12 A clamping control mechanism 6 is installed on the fixed clamp 4 to control the opening and closing of the movable clamp 5. During operation, the clamping control mechanism 6 can drive the movable clamp 5 to open and close, so as to complete the clamping and release of the metal planetary carrier 9. The clamping control mechanism 6 includes an adjusting cylinder 601 installed on the first fixed seat 404. The end of the piston rod of the adjusting cylinder 601 is fixedly connected to the mounting block 602. Multiple limit rods 603 are fixedly connected to the inner side of the first fixed seat 404. The clamping control mechanism 6 is mainly used for the opening and closing control of the movable clamp 5. During operation, it can drive the entire movable clamp 5 to move horizontally through the mounting block 602 at the end of the piston rod, thereby driving the movable clamp 5 to move closer to or away from the fixed clamp 4.

[0035] In this embodiment, multiple limiting rods 603 pass through corresponding limiting holes 502. The multiple limiting rods 603 can better limit and support the movement of the movable clamp 5, so as to ensure the stability and reliability of the clamp during operation.

[0036] Regarding rotary drive mechanism 7, refer to... Figures 5-10 The movable clamp 5 is also equipped with a rotary drive mechanism 7 for driving the metal planetary carrier 9 to rotate. The rotary drive mechanism 7 includes a second servo motor 701 fixedly installed in the mounting slot 505. A drive wheel 702 is fixedly installed at the bottom end of the output shaft of the second servo motor 701. An anti-slip rubber ring 703 is sleeved on the outer wall of the drive wheel 702. The rotary drive mechanism 7 is used to drive the rotation of the metal planetary carrier 9. The drive wheel 702 fixed at the bottom end of the output shaft of the second servo motor 701 can provide a certain lifting effect on the bottom edge of the metal planetary carrier 9. At the same time, during the rotation, it can also drive the metal planetary carrier 9 to rotate 360 ​​degrees around the Y-axis through the friction between it and the anti-slip rubber ring 703, thereby facilitating the machine tool to perform milling and drilling operations on different positions of the metal planetary carrier 9.

[0037] Regarding auxiliary positioning mechanism 8, refer to... Figures 11-13An auxiliary positioning mechanism 8 is fixedly installed on the top of the fixed clamping base 4 for auxiliary clamping and positioning during the processing of the metal planetary carrier 9. The auxiliary positioning mechanism 8 includes a fixed bracket 801 fixed to the top of the connecting part 402. A limit rod 802 is fixedly connected to the fixed bracket 801. A return spring 803 is sleeved on the outer wall of the limit rod 802. A limit nut 804 is threaded to the other end of the limit rod 802. A roller bracket 805 is also sleeved on the outer wall of the limit rod 802. A limit through hole 806 is opened at the end of the roller bracket 805 for the limit rod 802 to pass through. Limit rollers 807 are rotatably connected to the front and rear ends of the other side of the roller bracket 805. The auxiliary positioning mechanism 8 also serves as an auxiliary structure, which can provide clamping and positioning for the metal planetary carrier 9 during processing. The side wall protrusions serve as auxiliary clamping and limiting positions. When the metal planetary carrier 9 is placed on the rotating tray 201, the adjusting cylinder 601 will drive the movable clamping seat 5 to clamp it. During this process, the side wall protrusions of the metal planetary carrier 9 will contact the two limiting rollers 807, and further drive the roller bracket 805 to squeeze the return spring 803. Under the elastic counter-pushing force of the return spring 803, the two limiting rollers 807 can be pushed in the opposite direction to clamp the side wall of the metal planetary carrier 9, thereby improving its stability during processing. In addition, since the two limiting rollers 807 can also rotate, the metal planetary carrier 9 will not interfere with or obstruct it during rotation, nor will it leave scratches on its side wall.

[0038] The working principle of this embodiment is as follows: During processing, the rotating pallet 201 is first horizontally unfolded by controlling the control cylinder 202. At this time, the operator can place the metal planetary carrier 9 on the rotating pallet 201, which can support the bottom of the metal planetary carrier 9. Subsequently, the clamping control mechanism 6 will drive the movable clamp 5 to approach the fixed clamp 4 through the piston rod, thereby completing the clamping and fixing of the metal planetary carrier 9. During this process, the side wall boss of the metal planetary carrier 9 will contact the two limiting rollers 807, and further drive the roller bracket 805 to squeeze the return spring 803. Under the elastic counter-pushing force of the return spring 803, the two limiting rollers 807 can be pushed in the opposite direction to clamp the side wall of the metal planetary carrier 9, thereby improving its stability during the processing. Both the fixed clamping arm 403 and the movable clamping arm 503 are designed with a symmetrical arc-shaped structure, which can not only clamp and fix the metal planetary carrier 9, but also facilitate the milling of the side wall of the metal planetary carrier 9 by the machine tool spindle without interfering with normal processing. After clamping, the control cylinder 202 drives the rotating pallet 201 to retract and reset. At this time, the machine tool can perform CNC machining on the metal planetary carrier 9. During the machining process, the first servo motor 3 can drive the clamped metal planetary carrier 9 to rotate 360 ​​degrees in the X-axis direction, and the second servo motor 701 can drive the metal planetary carrier 9 to rotate 360 ​​degrees around the Y-axis direction. This facilitates the machine tool to perform milling and drilling on different positions of the metal planetary carrier 9. After machining, the clamping control mechanism 6 drives the movable clamp 5 to open, and the material can be unloaded.

[0039] The above description is merely a preferred embodiment of the present invention and is not intended to limit the scope of protection of the present invention.

Claims

1. A machining planet carrier tooling, comprising a tooling support (1), the tooling support (1) comprises a fixed base (101), one side of the top of the fixed base (101) is provided with an integrated support part (102), characterized in that: The inner side of the support part (102) is provided with a blank support mechanism (2) for supporting a metal planet carrier (9), and the top of the outer side of the support part (102) is provided with a first servo motor (3); The support part (102) is rotationally connected with a fixed clamp seat (4), one end of the output end of the first servo motor (3) is connected with the fixed clamp seat (4), the fixed clamp seat (4) is slidably connected with a movable clamp seat (5), and the fixed clamp seat (4) is provided with a clamping control mechanism (6) for controlling the opening and closing of the movable clamp seat (5); During operation, the clamping control mechanism (6) can drive the movable clamp seat (5) to open and close, so as to clamp and release the metal planet carrier (9); The movable clamp seat (5) is further provided with a rotating drive mechanism (7) for driving the metal planet carrier (9) to rotate. The top of the fixed clamp seat (4) is fixedly provided with an auxiliary positioning mechanism (8) for auxiliary clamping and positioning during the processing of the metal planet carrier (9).

2. The machining planetary carrier tooling of claim 1, wherein, The support part (102) is provided with a receiving groove (103), and the support part (102) is further provided with a through mounting hole (104) near the top.

3. The machining planetary carrier tooling of claim 2, wherein, The blank support mechanism (2) comprises a rotating support plate (201) rotationally connected to the top of the inner side of the receiving groove (103), and the receiving groove (103) is rotationally connected with a control cylinder (202), and the end of the piston rod of the control cylinder (202) is rotationally connected with the rotating support plate (201).

4. The machining planetary carrier fixture of claim 2, wherein, The fixed clamp seat (4) comprises a connecting shaft (401) penetrating into the mounting hole (104), one end of the connecting shaft (401) is fixedly connected with a connecting part (402), the other end of the connecting part (402) is fixedly connected with a fixed clamp arm (403), the rear end of the fixed clamp arm (403) is fixedly connected with a first fixed seat (404), and the inner side of the fixed clamp arm (403) is rotationally connected with a plurality of uniformly distributed first movable rollers (405).

5. The machining planetary carrier tooling of claim 4, wherein, The movable clamp seat (5) comprises a second fixed seat (501), a plurality of through limiting round holes (502) are formed in the second fixed seat (501), the second fixed seat (501) is further fixedly connected with a movable clamp arm (503), the inner side of the movable clamp arm (503) is rotationally connected with a plurality of uniformly distributed second movable rollers (504), and the outer side of the movable clamp arm (503) is provided with a mounting clamping groove (505).

6. The machining planetary carrier tooling of claim 5, wherein, The fixed clamp arm (403) and the movable clamp arm (503) are both designed in a circular arc structure, and the front ends between the fixed clamp arm (403) and the movable clamp arm (503) are provided with an opening structure for machine tool processing.

7. The machining planetary carrier fixture of claim 5, wherein, The clamping control mechanism (6) comprises an adjusting cylinder (601) mounted on the first fixed seat (404), the end of the piston rod of the adjusting cylinder (601) is fixedly connected with a mounting block (602), and the inner side of the first fixed seat (404) is fixedly connected with a plurality of limiting insertion rods (603).

8. The machining planetary carrier tooling of claim 7, wherein, The plurality of limiting insertion rods (603) respectively penetrate through the corresponding limiting round holes (502).

9. The machining planetary carrier fixture of claim 5, wherein, The rotating driving mechanism (7) comprises a second servo motor (701) fixedly installed in the mounting slot (505), the bottom end of the output shaft of the second servo motor (701) is fixedly installed with a driving wheel disc (702), and the outer wall of the driving wheel disc (702) is sleeved with an antiskid rubber ring (703).

10. The machining planetary carrier fixture of claim 4, wherein, The auxiliary positioning mechanism (8) comprises a fixed support (801) fixed to the top of the connecting portion (402), a limiting rod (802) is fixedly connected to the fixed support (801), a reset spring (803) is sleeved on the outer wall of the limiting rod (802), a limiting nut (804) is screwedly connected to the other end of the limiting rod (802), a roller support (805) is also sleeved on the outer wall of the limiting rod (802), limiting through holes (806) are formed in the end portions of the roller support (805) and the limiting rod (802) penetrates through the limiting through holes (806), and limiting rollers (807) are rotatably connected to the front and rear ends of the other side of the roller support (805).