Automatic differential planetary gear shaft assembly mechanism

Through innovative design of positioning adapter components and gear components, the problem of needing to replace grippers to adapt to different models of motor housings in existing technologies has been solved, realizing efficient clamping and installation of differential planetary gear shaft automatic assembly machine.

CN224674757UActive Publication Date: 2026-08-25福建冠维汽车零部件有限公司
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Patent Information

Application Number
CN202522153697.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-10-11
Publication Date
2026-08-25
Estimated Expiration
2035-10-11

AI Technical Summary

Technical Problem

Existing automatic assembly machines for differential planetary gear shafts require changing the clamps when holding different models of motor housings, making the assembly process cumbersome.

Method used

The device employs a comprehensive design that integrates positioning and adaptation components with active and auxiliary gears. By using the embedded springs and pressure rods in the grippers to adapt to different motor housing models, and by adjusting the rotation of the motor and the limiting post in conjunction with the aperture adjustment mechanism, the diameter of the clamping ring can be adjusted to accommodate different motor housing models.

Benefits of technology

This improves assembly efficiency, enabling stable clamping and installation of different motor housing models without the need to change the grippers, thus enhancing assembly efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a kind of planetary gear shaft automatic assembly mechanisms of differential, it is related to planetary gear shaft technical field, the planetary gear shaft automatic assembly mechanism of this differential, including counter, movement control mechanism and automatic assembly mechanism, further include: the movement control mechanism of being set in the top surface one side of counter, the side of movement control mechanism is fixedly installed with clamping table by screw, the top surface of clamping table is fixedly installed with clamping mechanism, the clamping mechanism includes jaw and clamping control element.The utility model is equipped with the setting of positioning adaptation component, when motor shell is placed into jaw interior, jaw is inwards retracted, if several abutting rods are contacted type abutting on the surface of motor shell, while part abutting rod is under the action of inlay spring, according to the surface shape of motor shell, adaptation type abutting is carried out, this assembly mechanism does not need to replace jaw to adapt different models of motor shell to carry out clamping, improve assembly efficiency.
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Description

Technical Field

[0001] This utility model belongs to the field of planetary gear shaft technology, specifically an automatic assembly mechanism for planetary gear shafts of differentials. Background Technology

[0002] The automatic assembly mechanism for the differential planetary gear shaft is a modern intelligent manufacturing unit that integrates precision mechanics, automated control, machine vision, and sensor technology. Its main function is to assemble the power-bearing shaft into the gear through an intelligent system with sensing, decision-making, and execution capabilities.

[0003] Currently, existing automatic assembly machines for planetary gear shafts of differentials directly use grippers to wrap around the surface of the motor housing when clamping and fixing it. However, the surface of the motor housing contains irregular structures such as annular grooves, and different motor housings require different grippers for wrapping and installation. When clamping other models of motors, it is necessary to change the grippers before assembly, which is quite cumbersome. Utility Model Content

[0004] The purpose of this utility model is to provide an automatic assembly mechanism for the planetary gear shaft of a differential, so as to solve the technical problem of clamping the housing of different models of motors mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an automatic assembly mechanism for planetary gear shafts of a differential, comprising a counter, a movement control mechanism, and an automatic shaft assembly control mechanism, further comprising: a movement control mechanism disposed on one side of the top surface of the counter, a clamping platform mounted on the side of the movement control mechanism, a clamping mechanism mounted on the top surface of the clamping platform, the clamping mechanism comprising jaws and clamping control components, the jaws being mounted on both sides of the clamping control components, and a plurality of positioning grooves being formed through the surfaces of both jaws, with a positioning adapter component mounted at one end of each of the positioning grooves; the positioning adapter component comprising a sleeve, an embedded spring, and a pressing rod, the sleeve being mounted at one end of the positioning groove, the embedded spring being connected to the inner bottom wall of the sleeve, and a pressing rod being connected to one end of the embedded spring, with the pressing rod slidably connected to the interior of the sleeve. The gripper and the pressure rod both press against and hold the motor housing; a plug-in plate is set in the middle of the top surface of the counter, and the top surface of the plug-in plate has several plug-in slots. An aperture adjustment motor is installed at the bottom of the inner side of the plug-in slots. A drive gear is installed at the output end of the aperture adjustment motor. An auxiliary gear is meshed and rotated on the surface of the drive gear. The surface of the auxiliary gear has four track slots. Limiting posts are slidably connected inside the four track slots. Pushers are connected to the bottom of the four limiting posts. A clamping ring is fixedly connected to one side of each of the four pushers. A cross-shaped limiting track is slidably connected to the surface of the pushers. A receiving post is fixedly connected to the middle of the surface of the cross-shaped limiting track. One end of the receiving post is installed in the middle of the auxiliary gear. A fixing plate is connected to the inner side of the cross-shaped limiting track. The surface of the fixing plate is rotatably connected to the middle of the drive gear.

[0006] As a preferred embodiment of this utility model, a closed shell is fixedly installed on the top surface of the counter, and a corner glass observation window is provided at the front corner of the closed shell.

[0007] As a preferred technical solution of this utility model, a support mechanism is fixedly connected to the top of the counter. The support mechanism includes a support frame fixedly installed at the bottom of the counter. A support rod is threadedly connected to one side of the surface of the support frame, and a caster wheel is fixedly installed on the other side of the surface of the support frame. The support rod is assembled such that it is threadedly rotated on the support frame until the bottom of the support rod presses against the ground, thereby supporting the counter.

[0008] As a preferred embodiment of this utility model, a buffer sheet is fixedly connected to one end of the pressure rod, and the buffer sheet is made of silicone.

[0009] As a preferred technical solution of this utility model, an automatic shaft assembly control mechanism is fixedly installed on the other side of the top surface of the counter. The automatic assembly structure is assembled into a planetary gear for automatic assembly inside the motor housing.

[0010] As a preferred technical solution of this utility model, an inlet fan is provided on one side of the counter, and an exhaust vent is symmetrically provided on the other side of the counter. The exhaust vent is configured to allow the inlet fan to introduce cool air into the interior of the counter, mix and remove the hot air inside the counter, and then discharge it from the exhaust vent.

[0011] As a preferred embodiment of this utility model, the front of the counter is hinged with an inspection door, which is installed to close the counter and reduce the impact of dust on the working machines.

[0012] Compared with the prior art, this utility model provides an automatic assembly mechanism for the planetary gear shaft of a differential, which has the following advantages: 1. The planetary gear shaft automatic assembly mechanism of this differential, through the setting of the positioning and matching components, when the motor housing is placed inside the gripper, as the gripper retracts inward, several pressure rods make contact with and press against the surface of the motor housing. At the same time, some of the pressure rods, under the action of the embedded spring, make adaptive pressure according to the surface shape of the motor housing. This assembly mechanism does not require changing the gripper to fit different models of motor housings for clamping, thus improving assembly efficiency.

[0013] 2. The automatic assembly mechanism for the planetary gear shaft of this differential, through the comprehensive arrangement of the driving gear, auxiliary gear, track groove, limit post, pusher, cross limit track, and clamping ring, activates the aperture adjustment motor when the motor housing is placed into the plug-in plate. The output end of the aperture adjustment motor rotates, causing the driving gear and auxiliary gear to rotate synchronously. This causes the track groove set inside the auxiliary gear by the limit post to rotate, and then the limit post pushes the pusher, which is limited by the cross limit track, to retract outward or inward. This allows the clamping ring to change its diameter, thereby adapting to the bottom housing of different cylindrical motors for temporary plug-in. This facilitates the installation of gear shafts for different models of motors by the assembly mechanism. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the disassembled structure of the automatic assembly mechanism of this utility model; Figure 3 This is a schematic diagram showing the disassembled structure of the mobile control mechanism and clamping platform of this utility model; Figure 4 This is a schematic diagram of the clamping mechanism and positioning adapter components of this utility model; Figure 5 This utility model Figure 4 Schematic diagram of the structure at point A in the middle; Figure 6 This is a schematic diagram of the plug-in board structure of this utility model; Figure 7This is a schematic diagram of the overall structure of the driving gear, auxiliary gear, track groove, limiting post, pusher, cross limiting track and clamping ring of this utility model; Figure 8 This is a schematic diagram showing the disassembled structure of the driving gear, auxiliary gear, track groove, limiting post, pusher, cross limiting track, and clamping ring of this utility model.

[0015] In the diagram: 1. Counter; 2. Motion control mechanism; 3. Clamping platform; 4. Clamping mechanism; 401. Gripper; 402. Clamping control component; 5. Positioning slot; 6. Positioning adapter component; 601. Sleeve; 602. Embedded spring; 603. Pressing rod; 7. Motor housing; 8. Connecting plate; 9. Connecting slot; 10. Aperture adjustment motor; 11. Drive gear; 12. Auxiliary gear; 13. Track groove; 14. Limiting post; 15. Pushing component; 16. Cross limiting track; 17. Supporting post; 18. Fixing plate; 20. Enclosed shell; 21. Corner glass observation window; 22. Support frame; 23. Support rod; 24. Casters; 25. Buffer plate; 26. Inlet fan; 27. Inspection door; 28. Shaft assembly automatic control mechanism; 29. ​​Clamping ring. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] Please see Figures 1-8This utility model discloses an automatic assembly mechanism for planetary gear shafts of a differential. The automatic assembly mechanism includes a counter 1, a movement control mechanism 2, and an automatic shaft assembly control mechanism 28. It further includes: a movement control mechanism 2 disposed on one side of the top surface of the counter 1; a clamping platform 3 fixedly mounted to the side of the movement control mechanism 2 by screws; and a clamping mechanism 4 fixedly mounted on the top surface of the clamping platform 3. The clamping mechanism 4 includes grippers 401 and clamping control components 402. The grippers 401 are fixedly mounted to both sides of the clamping control components 402 by screws, and both grippers 401 have through-cut openings on their surfaces. Several positioning slots 5 are provided, and a positioning adapter component 6 is fixedly installed at one end of each positioning slot 5. The positioning adapter component 6 includes a sleeve 601, an embedded spring 602, and a pressing rod 603. The sleeve 601 is fixedly installed at one end of the positioning slot 5. An embedded spring 602 is fixedly connected to the inner bottom wall of the sleeve 601. A pressing rod 603 is fixedly connected to one end of the embedded spring 602, and the pressing rod 603 is slidably connected to the inside of the sleeve 601. Both the gripper 401 and the pressing rod 603 press and hold the motor housing 7. By setting up the positioning adapter component 6, it is not necessary to replace the gripper 401 to adapt to different models of motors. The outer casing is clamped, improving assembly efficiency. A plug-in plate 8 is located in the center of the top surface of the counter 1. Several plug-in slots 9 are formed on the top surface of the plug-in plate 8. An aperture adjustment motor 10 is fixedly installed at the bottom of the inner side of each plug-in slot 9. A drive gear 11 is fixedly installed at the output end of the aperture adjustment motor 10. An auxiliary gear 12 meshes with the surface of the drive gear 11. Four track grooves 13 are formed on the surface of the auxiliary gear 12. Limiting posts 14 are slidably connected inside each of the four track grooves 13. Pushers 15 are fixedly connected to the bottom of each of the four limiting posts 14. Clamping rings 29 are fixedly connected to one side of each of the four pushers 15. Furthermore, a cross-shaped limiting rail 16 is slidably connected to the surface of the pusher 15, and a receiving column 17 is fixedly connected to the middle of the surface of the cross-shaped limiting rail 16. One end of the receiving column 17 is fixedly installed on the middle of the auxiliary gear 12. A fixing plate 18 is fixedly connected to the inner side of the cross-shaped limiting rail 16, and the surface of the fixing plate 18 is rotatably connected to the middle of the drive gear 11. Through the comprehensive arrangement of the drive gear 11, auxiliary gear 12, rail groove 13, limiting column 14, pusher 15, cross-shaped limiting rail 16 and clamping ring 29, the assembly mechanism can be further improved to install different types of motor gear shafts.

[0018] Specifically, a closed shell 20 is fixedly installed on the top surface of the counter 1, and a corner glass observation window 21 is provided at the front corner of the closed shell 20.

[0019] In this implementation plan, the corner glass observation window 21 can both close off the top of the counter 1 to form a closed operating space and facilitate observation of the working conditions at the top of the counter 1.

[0020] Specifically, a support mechanism is fixedly connected to the top of the counter 1. The support mechanism includes a support frame 22 fixedly installed at the bottom of the counter 1. A support rod 23 is threadedly connected to one side of the surface of the support frame 22, and a caster wheel 24 is fixedly installed on the other side of the surface of the support frame 22. The support rod 23 is assembled to rotate threadedly on the support frame 22 until the bottom of the support rod 23 presses against the ground, thereby supporting the counter 1.

[0021] In this embodiment, the position of the assembly machine can be flexibly adjusted by the adjustable support rod 23 and the casters 24.

[0022] Specifically, a buffer sheet 25 is fixedly connected to one end of the pressure rod 603. The buffer sheet 25 is made of silicone.

[0023] In this embodiment, the use of a silicone buffer sheet 25 helps to prevent hard damage when pressing against the motor housing 7.

[0024] Specifically, an automatic control mechanism 28 for shaft assembly is fixedly installed on the other side of the top surface of the counter 1. The automatic control mechanism 28 is assembled to automatically assemble the planetary gears inside the motor housing 7.

[0025] In this implementation scheme, the automatic control mechanism 28 for shaft assembly enables the automatic assembly of the planetary gears of the motor differential through a free control program.

[0026] Specifically, a fan 26 is provided on one side of the counter 1, and an exhaust vent is symmetrically provided on the other side of the counter 1. The exhaust vent is configured to allow the fan 26 to introduce cool air into the interior of the counter 1, mix and remove the hot air inside the counter 1, and then discharge it from the exhaust vent.

[0027] In this implementation scheme, the intake fan 26 serves to dissipate heat from the components during the assembly process.

[0028] Specifically, the front of the counter 1 is hinged with an access door 27, which is installed to close the counter 1 and reduce the impact of dust on the working machines.

[0029] In this implementation plan, the inspection door 27 is convenient to open for maintenance.

[0030] The working principle and usage process of this utility model are as follows: With the setting of the positioning and fitting component 6, when the motor housing 7 is placed inside the gripper 401, when the gripper 401 retracts inward, several pressing rods 603 make contact pressing on the surface of the motor housing 7. At the same time, some pressing rods 603, under the action of the embedded spring 602, make adaptive pressing according to the surface shape of the motor housing 7. This assembly mechanism does not require replacing the gripper 401 to fit different models of motor housings for clamping. When the motor housing 7 is placed into the plug plate 8, the aperture adjustment motor 10 is started. The output end of the aperture adjustment motor 10 rotates, driving the drive gear 11 and the auxiliary gear 12 to rotate synchronously. This causes the track groove 13 set inside the auxiliary gear 12 to rotate, and then the limit post 14 pushes the pusher 15, which is limited by the cross limit track 16, to retract outward or inward. This allows the clamping ring 29 to change its own diameter, thereby adapting to the bottom housing of different cylindrical motors for temporary plugging.

[0031] In summary, the automatic assembly mechanism for the planetary gear shaft of this differential, through the setting of the positioning adapter component 6, allows several pressing rods 603 to contact and press against the surface of the motor housing 7 when the motor housing 7 is placed inside the gripper 401 and the gripper 401 retracts inward. Simultaneously, some of the pressing rods 603, under the action of the embedded spring 602, adapt to the surface shape of the motor housing 7 and press accordingly. This assembly mechanism eliminates the need to replace the gripper 401 to accommodate different models of motor housings, thus improving assembly efficiency. Furthermore, the mechanism utilizes the drive gear 11, auxiliary gear 12, track groove 13, limit post 14, pusher 15, and cross limit rail. The combined arrangement of the guide rail 16 and the clamping ring 29 allows the aperture adjustment motor 10 to be activated when the motor housing 7 is placed into the plug plate 8. The output of the aperture adjustment motor 10 rotates, causing the drive gear 11 and the auxiliary gear 12 to rotate synchronously. This causes the track groove 13 set inside the auxiliary gear 12 to rotate, thereby pushing the pusher 15, which is limited by the cross-shaped limit track 16, to retract outward or inward. This allows the clamping ring 29 to change its diameter, thus adapting to the bottom housing of different cylindrical motors for temporary insertion. This facilitates the assembly mechanism to further improve the installation of gear shafts for different models of motors.

[0032] It should be noted that, in this document, terms such as "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0033] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An automatic assembly mechanism for planetary gear shafts of a differential, comprising a counter (1), a movement control mechanism (2), and an automatic shaft assembly control mechanism (28), characterized in that, Also includes: A movement control mechanism (2) is set on one side of the top surface of the counter (1). A clamping platform (3) is installed on the side of the movement control mechanism (2). A clamping mechanism (4) is installed on the top surface of the clamping platform (3). The clamping mechanism (4) includes a gripper (401) and a clamping control component (402). The gripper (401) is installed on both sides of the clamping control component (402). Several positioning grooves (5) are opened through the surface of both grippers (401). A positioning adapter component (6) is installed at one end of the several positioning grooves (5). The positioning adapter component (6) includes a sleeve (601), an embedded spring (602), and a pressing rod (603). The sleeve (601) is installed at one end of the positioning groove (5). An embedded spring (602) is connected to the inner bottom wall of the sleeve (601). One end of the embedded spring (602) is connected to the pressing rod (603), and the pressing rod (603) is slidably connected to the inside of the sleeve (601). The gripper (401) and the pressing rod (603) both press and hold the motor housing (7). A plug-in plate (8) is set in the middle of the top surface of the counter (1). The top surface of the plug-in plate (8) has several plug-in slots (9). An aperture adjustment motor (10) is installed at the bottom inside the plug-in slots (9). A drive gear (11) is installed at the output end of the aperture adjustment motor (10). An auxiliary gear (12) meshes with the surface of the drive gear (11). Four track slots (13) are opened on the surface of the auxiliary gear (12). Limiting posts (14) are slidably connected inside the four track slots (13). Each of the four pushers (14) is connected to a pusher (15) at its bottom. Each of the four pushers (15) is connected to a clamping ring (29) on one side. The surface of the pusher (15) is slidably connected to a cross-shaped limiting rail (16). A receiving post (17) is fixedly connected to the middle of the surface of the cross-shaped limiting rail (16). One end of the receiving post (17) is installed in the middle of the auxiliary gear (12). A fixing plate (18) is connected to the inner side of the cross-shaped limiting rail (16). The surface of the fixing plate (18) is rotatably connected to the middle of the driving gear (11).

2. The automatic assembly mechanism for the planetary gear shaft of a differential according to claim 1, characterized in that: The top surface of the counter (1) is fixedly equipped with a closed shell (20), and a corner glass observation window (21) is provided at the front corner of the closed shell (20).

3. The automatic assembly mechanism for the planetary gear shaft of a differential according to claim 1, characterized in that: The top of the counter (1) is fixedly connected to a support mechanism, which includes a support frame (22) fixedly installed at the bottom of the counter (1). A support rod (23) is threadedly connected to one side of the surface of the support frame (22), and a caster wheel (24) is fixedly installed on the other side of the surface of the support frame (22). The support rod (23) is assembled to support the counter (1) after it is threadedly rotated on the support frame (22) until the bottom of the support rod (23) presses against the ground.

4. The automatic assembly mechanism for the planetary gear shaft of a differential according to claim 1, characterized in that: One end of the pressure bar (603) is fixedly connected to a buffer sheet (25), which is made of silicone.

5. The automatic assembly mechanism for the planetary gear shaft of a differential according to claim 1, characterized in that: A shaft assembly automatic control mechanism (28) is fixedly installed on the other side of the top surface of the counter (1). The shaft assembly automatic control mechanism (28) is assembled to automatically assemble the planetary gear inside the motor housing (7).

6. The automatic assembly mechanism for the planetary gear shaft of a differential according to claim 1, characterized in that: The counter (1) is provided with an intake fan (26) on one side and an exhaust vent is provided symmetrically on the other side of the counter (1). The exhaust vent is configured to allow the intake fan (26) to introduce cool air into the counter (1), mix and carry away the hot air inside the counter (1), and then discharge it from the exhaust vent.

7. The automatic assembly mechanism for the planetary gear shaft of a differential according to claim 1, characterized in that: The front of the counter (1) is hinged with an access door (27), which is fitted to close the counter (1) to reduce the impact of dust on the working machines.