A universal joint assembly device for a drive shaft assembly

Abstract

The present invention relates to the technical field of universal joint assembly, and discloses a universal joint assembly device for a drive shaft assembly. The present invention includes: a base table, a transfer mechanism and a housing are arranged on the top of the base table, and a steel ball installation mechanism is arranged inside the housing; the transfer mechanism includes a runner rotatably arranged on the base table for transferring the universal joint spherical shell, and a plurality of positioning ports distributed in a ring are arranged on the runner, and the positioning ports are used for limiting the spherical shell; the steel ball installation mechanism includes a funnel that can be lifted and rotated, a guiding pipe is fixedly arranged at the bottom of the funnel, and a rocker that can swing back and forth is arranged on one side of the guiding pipe, so as to adjust the angle of the universal joint cage. The present invention can control the angles of the star-shaped sleeve and the cage in the universal joint while feeding steel balls into the universal joint, so as to realize the automatic installation of the steel balls of the universal joint, thereby solving the tediousness of manual installation.

Description

Technical Field

[0001] The present invention relates to the technical field of universal joint assembly, and particularly relates to a universal joint assembly device for a drive shaft assembly. Background Art

[0002] The drive shaft assembly mainly consists of an intermediate shaft and universal joints arranged at both ends of the intermediate shaft. The universal joint is generally referred to as a constant velocity universal joint or a ball cage universal joint. The constant velocity universal joint mainly consists of a spherical shell (outer raceway), a cage (ball cage), a star-shaped sleeve (inner raceway), and steel balls. When assembling the universal joint, generally, the star-shaped sleeve is first placed in the cage, and then the combined star-shaped sleeve and cage are placed in the spherical shell. Finally, the steel balls are placed in the spherical shell by adjusting the angles of the star-shaped sleeve and the cage. The installation of the steel balls is also the most difficult and cumbersome step in the entire universal joint assembly process.

[0003] Currently, the installation of the inner bearing part of the ball cage universal joint mainly relies on manual labor, especially the installation of the steel balls. Since certain skills are required for installing the steel balls and the installation process is relatively cumbersome, it is necessary to continuously adjust the angle between the cage and the spherical shell (when the inclination angle between the cage and the star-shaped sleeve in the spherical shell reaches 45°, the window holes on the cage will be exposed from the spherical shell, and at this time, the steel balls can be taken out and put in. When the universal joint is connected to the intermediate shaft on the drive shaft, due to the diameter limitation of the intermediate shaft, the intermediate shaft cannot drive the cage and the star-shaped sleeve to incline at an angle of 45 degrees, and the intermediate shaft will contact the edge of the spherical shell in advance, resulting in a limitation. Therefore, when disassembling the universal joint, the intermediate shaft also needs to be removed from the universal joint), which leads to a relatively large operation difficulty and increases the workload of the staff. Therefore, it is necessary to propose a universal joint assembly device for a drive shaft assembly to realize the automatic installation of the steel balls. Summary of the Invention

[0004] To solve the above technical problems, the present invention provides a universal joint assembly device for a drive shaft assembly.

[0005] The present invention is realized by the following technical solutions: a base table, a transfer mechanism and a housing are arranged on the top of the base table, and a steel ball installation mechanism is arranged inside the housing; the transfer mechanism includes a runner rotatably arranged on the base table for transferring the spherical shell of the universal joint, and a plurality of positioning ports distributed in a ring are arranged on the runner, and the positioning ports are used for limiting the spherical shell; the steel ball installation mechanism includes a funnel that can be lifted and rotated, a guiding pipe is fixedly arranged at the bottom of the funnel, and a rocker that can swing back and forth is arranged on one side of the guiding pipe, so as to adjust the angle of the cage of the universal joint.

[0006] As a further improvement of the above solution, a first motor is provided at the bottom of the base table, and the shaft rod of the runner is fixedly connected to the output shaft of the first motor.

[0007] As a further improvement of the above solution, a leak port is provided on one side of the base table, and the leak port corresponds to the corresponding positioning port, so that after the universal joint is assembled, it can be transferred to the leak port and dropped out under the drive of the runner.

[0008] As a further improvement of the above solution, sliding frames are fixedly installed on both inner walls of the outer shell, and the same shaft frame is slidably installed on the two sliding frames in a lifting manner. The funnel is rotatably connected to the shaft frame, and two hydraulic rods are fixedly installed on the inner wall of the top of the outer shell. The output rods of the two hydraulic rods are fixedly connected to the shaft frame, so as to drive the entire steel ball installation mechanism to lift stably.

[0009] As a further improvement of the above solution, a second motor for driving the rotation of the steel ball installation mechanism is fixedly installed on the shaft frame, and the second motor is in transmission connection with the funnel.

[0010] As a further improvement of the above solution, a support frame is provided on the guiding pipeline, a reciprocating wheel disc is rotatably installed on the support frame, a third motor for driving the rotation of the reciprocating wheel disc is fixedly arranged on the support frame, a driving frame that can reciprocate along with the reciprocating wheel disc is arranged on the support frame, a push rod is fixedly installed on one side of the driving frame, one end of the push rod penetrates through the guiding pipeline and is hinged to a slider, and the slider is slidably connected to a rocker, so as to drive the rocker to swing back and forth.

[0011] As a further improvement of the above solution, a resisting rod is slidably installed on the driving frame in a limited manner, a resisting block for tightly pressing the steel ball and extending into the guiding pipeline is fixedly installed at one end of the resisting rod, a spring is sleeved on the resisting rod, and the two ends of the spring are respectively abutted against the driving frame and the resisting block. A notch for the steel ball to pass through is provided on the push rod, so that when the driving frame moves, it can not only drive the rocker to swing through the push rod, so that the rocker adjusts the angle between the cage and the spherical shell, but also align the notch with the guiding pipeline, so that the steel ball can automatically fall into the spherical shell, and at the same time, it also pushes the resisting rod and the resisting block to limit another steel ball, avoiding too many steel balls falling in at one time.

[0012] As a further improvement of the above solution, a pressing arm composed of a semi-gear and an arc rod is rotatably arranged on one side of the guiding pipeline, and a rack that can be in transmission with the semi-gear is arranged at the bottom of the driving frame, so that when the driving frame drives the rack to approach the pressing arm, the pressing arm can be withdrawn from the guiding pipeline, so that the steel ball can smoothly fall into the spherical shell, and after the driving frame resets, it will drive the pressing arm back into the guiding pipeline and press the steel ball that is easy to get stuck.

[0013] As a further improvement of the above solution, a plug for inserting into the star-shaped sleeve is rotatably arranged at the bottom end of the rocker, so that the rocker can smoothly adjust the angles of the star-shaped sleeve and the cage, and at the same time, when the steel ball installation mechanism rotates and adjusts the position, it will not drive the star-shaped sleeve, the cage and the spherical shell to rotate together.

[0014] As a further improvement of the above solution, two arc-shaped sliding openings are arranged on both sides of the support frame, and a pair of sliding shafts are arranged on both sides of the rocker. The four sliding shafts respectively extend into the corresponding arc-shaped sliding openings and are slidably connected with the corresponding arc-shaped sliding openings, so as to reasonably control the swinging angle of the rocker.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0016] The transfer mechanism composed of the first motor, the runner and other structures cooperates with the steel ball installation mechanism composed of the guiding pipe and the rocker, etc., which can automatically install steel balls on the spherical shell with the cage and the star-shaped sleeve installed. Compared with manual installation, it saves manpower and reduces the burden on the staff. Moreover, during the installation of the steel balls, the spherical shell, the cage and the star-shaped sleeve can be pre-assembled and arranged, so as to improve the assembly efficiency of the universal joint;

[0017] By passing the push rod through the guiding pipe, setting a notch on the push rod, and synchronously arranging a resisting rod, a spring, a resisting block and other structures on the driving frame, so that when installing the steel balls, the push rod can not only adjust the angle of the cage through the rocker, but also make the notch and the guiding pipe automatically discharge the steel balls, so that the angle adjustment of the cage and the discharge of the steel balls can be realized synchronously. Moreover, the limiting work of the steel balls can be realized simultaneously by the resisting rod and the resisting block, so that only one steel ball falls and is installed at a time, avoiding the disorderly falling of the steel balls and affecting the normal installation;

[0018] By arranging a pressing arm on the guiding pipe and a rack at the bottom of the driving frame, so that after the steel balls are discharged from the guiding pipe, when the driving frame resets, it can first drive the pressing arm to press the steel balls, so that the steel balls can smoothly fall into the spherical shell, avoiding the installation failure caused by the steel balls being stuck. Description of the Drawings

[0019] Figure 1 It is an overall display diagram of the universal joint assembly device of the drive shaft assembly of the present invention;

[0020] Figure 2 It is a sectional view of the shell of the universal joint assembly device of the drive shaft assembly of the present invention;

[0021] Figure 3 It is a disassembled display diagram of the outer shell and the steel ball installation mechanism of the universal joint assembly device of the drive shaft assembly of the present invention;

[0022] Figure 4 It is a plan sectional view showing the steel ball installation mechanism;

[0023] Figure 5 It is a sectional view showing the steel ball installation mechanism;

[0024] Figure 6 It is a view showing the rocker and its driving structure in the steel ball installation mechanism;

[0025] Figure 7 It is a bottom view showing the steel ball installation mechanism;

[0026] Figure 8 It is a demonstration diagram of the universal joint assembly device.

[0027] Main symbol description:

[0028] 1. Base table; 2. First motor; 3. Runner; 4. Outer shell; 5. Slide carriage; 6. Hydraulic rod; 7. Shaft support; 8. Hopper; 9. Second motor; 10. Positioning port; 11. Guide pipe; 12. Support frame; 13. Third motor; 14. Reciprocating disc; 141. Guide shaft; 15. Driving frame; 151. Chute; 16. Push rod; 161. Slide block; 17. Rocker; 18. Plug; 19. Bracing rod; 20. Spring; 21. Bracing block; 22. Notch; 23. Pressing arm; 24. Rack. Specific implementation manner

[0029] Next, in combination with the accompanying drawings and specific implementation manners, the present invention will be further described.

[0030] Please refer to Figures 1 to 8 , the drive shaft assembly universal joint assembly device includes: a base table 1, a transfer mechanism and an outer shell 4 are provided on the top of the base table 1, a steel ball installation mechanism is provided inside the outer shell 4, the above-mentioned transfer mechanism includes a runner 3 rotatably arranged on the base table 1 for transferring the universal joint spherical shell, a first motor 2 is provided at the bottom of the base table 1, the shaft rod of the runner 3 is fixedly connected to the output shaft of the first motor 2, and a plurality of circumferentially distributed positioning ports 10 are provided on the runner 3, and the positioning ports 10 are used for limiting the spherical shell;

[0031] The steel ball installation mechanism includes a funnel 8 that can be lifted and rotated. A round opening is provided on the top of the shell 4. The top of the funnel 8 extends to the outside of the shell 4 through the round opening. The funnel 8 is used to store the steel balls. Slides 5 are fixedly installed on the inner walls of both sides of the shell 4. The same shaft frame 7 is installed on the two slides 5 for lifting and sliding. The funnel 8 is rotatably connected to the shaft frame 7. Two hydraulic rods 6 are fixedly installed on the top inner wall of the shell 4. The output rods of the two hydraulic rods 6 are fixedly connected to the shaft frame 7. A second motor 9 for driving the steel ball installation mechanism to rotate is fixedly installed on the shaft frame 7. The output shaft of the second motor 9 is Gears are provided on the funnel 8, and the two gears are meshed, so that the second motor 9 is connected to the funnel 8, thereby driving the entire steel ball installation mechanism to rise and fall stably. A guide pipe 11 is fixedly provided at the bottom of the funnel 8, and a rocker 17 that can swing back and forth is provided on one side of the guide pipe 11. A support frame 12 is provided on the guide pipe 11, and a reciprocating wheel 14 is rotatably installed on the support frame 12. A third motor 13 for driving the reciprocating wheel 14 to rotate is fixedly provided on the support frame 12, and a The driving frame 15 is provided with a slide groove 151 on one side of the driving frame 15. A guide shaft 141 extending into the slide groove 151 is fixedly installed on the reciprocating wheel 14, thereby driving the driving frame 15 to reciprocate. Two slide bars are fixedly installed in the support frame 12. Both slide bars penetrate the driving frame 15 and are slidably connected to the driving frame 15, thereby ensuring the stability of the driving frame 15. A push rod 16 is fixedly installed on one side of the driving frame 15. One end of the push rod 16 penetrates the guide pipe 11 and is hinged with a slider 161. The slider 161 is slidably connected to the rocker 17, thereby driving the rocker 17 to swing back and forth. , used to adjust the angle of the universal joint holder, the swing axis of the rocker 17 is the active axis point of the universal joint (the holder and the star-shaped sleeve are movable nodes in the spherical shell. When the holder and the star-shaped sleeve are tilted at an angle of 45° in the spherical shell, the window hole on the holder will be exposed from the spherical shell, and the steel ball can be taken out and put in at this time). Two arc-shaped sliding openings are provided on both sides of the support frame 12, and a pair of sliding shafts are provided on both sides of the rocker 17. The four sliding shafts extend into the corresponding arc-shaped sliding openings respectively and are slidably connected with the corresponding arc-shaped sliding openings, so as to reasonably control the swing angle of the rocker 17.

[0032] The above technical solution saves manpower and reduces the burden on workers compared to manual installation. Moreover, during the installation of the steel ball, the spherical shell, retaining frame and star sleeve can be assembled and arranged in advance, thereby improving the assembly efficiency of the universal joint.

[0033] A leak is provided on one side of the base platform 1, and the leak corresponds to the corresponding positioning hole 10, so that the universal joint can be transferred to the leak driven by the rotating wheel 3 after assembly and fall out.

[0034] A push rod 19 is limitedly installed on the driving frame 15 for sliding, and a push block 21 is fixedly installed on one end of the push rod 19 and extends into the guide pipe 11 for pressing the steel ball. A spring 20 is sleeved on the push rod 19, and the two ends of the spring 20 are respectively pressed against the driving frame 15 and the push block 21. A notch 22 for the steel ball to pass through is provided on the push rod 16, so that when the driving frame 15 moves, it can not only drive the rocker 17 to swing through the push rod 16 to adjust the angle between the retaining frame and the spherical shell, but also align the notch 22 with the guide pipe 11, so that the steel ball can automatically fall into the spherical shell, and also push the push rod 19 and the push block 21 to limit another steel ball to avoid too many steel balls falling at one time.

[0035] Through the above technical scheme, when installing the steel ball, the push rod 16 can adjust the angle of the retaining frame through the rocker 17, and at the same time, the notch 22 and the guide pipe 11 can automatically discharge the steel ball, so that the angle adjustment of the retaining frame and the discharge of the steel ball can be achieved simultaneously. In addition, the steel ball can be limited by the support rod 19 and the support block 21 at the same time, so that only one steel ball falls and completes the installation at a time, avoiding the disorderly falling of the steel balls affecting the normal installation.

[0036] A pressing arm 23 composed of a half gear and an arc rod is rotatably provided on one side of the guide pipe 11, and a rack 24 that can transmit power to the half gear is provided at the bottom of the driving frame 15, so that when the driving frame 15 drives the rack 24 close to the pressing arm 23, the pressing arm 23 can be withdrawn from the guide pipe 11, so that the steel ball can fall smoothly into the spherical shell. After the driving frame 15 is reset, it will drive the pressing arm 23 back into the guide pipe 11 and press the steel ball that is easily stuck.

[0037] Through the above technical solution, after the steel ball is discharged from the guide pipe 11, the driving frame 15 can first drive the pressing arm 23 to press the steel ball when resetting, so that the steel ball can fall into the spherical shell smoothly, avoiding the steel ball getting stuck and causing installation failure.

[0038] The bottom end of the rocker 17 is rotatably provided with a plug 18 for inserting into the star sleeve. The diameter of the plug 18 is close to the inner diameter of the internal spline on the star sleeve, so that the rocker 17 can smoothly adjust the angle of the star sleeve and the retaining frame. At the same time, when the steel ball mounting mechanism is rotated to adjust the position, it will not drive the star sleeve, the retaining frame and the spherical shell to rotate together.

[0039] The implementation principle of a universal joint assembly device for a drive shaft assembly in the embodiment of the present application is as follows:

[0040] When assembling the constant velocity joint, the steel balls to be installed are pre-placed in the funnel 8, and then the spherical housing with the cage and the star gear installed is placed in the corresponding positioning port 10 (during this process, the raceways on the spherical housing and the star gear need to be aligned with the windows on the cage to facilitate the falling of the steel balls);

[0041] Subsequently, the first motor 2 is started, the runner 3 drives the spherical housing to move to directly below the steel ball installation mechanism, and the hydraulic rod 6 is started to drive the steel ball installation mechanism to descend until the plug 18 is inserted into the internal spline in the middle of the star gear;

[0042] The third motor 13 is started to drive the reciprocating wheel disc 14 to rotate. The reciprocating wheel disc 14 drives the driving frame 15 to move and reset through the guide shaft 141. During the movement of the driving frame 15, the push rod 16 drives the rocker 17 to swing around the cage as the axis, so that one side of the cage is lifted and the windows at the corresponding angle are exposed. During this process, the notch 22 on the push rod 16 also guides the pipeline 11 to be aligned, so that the steel balls originally blocked by the push rod 16 will continue to fall through the notch 22 and fall into the spherical housing through the windows on the cage under the guidance of the guiding pipeline 11. At the same time, during the movement of the driving frame 15, the spring 20 also pushes the abutting rod 19, so that the abutting rod 19 holds the corresponding steel ball to prevent multiple steel balls from falling at the same time;

[0043] And when starting, the pressing arm 23 will also rotate counterclockwise by 90 degrees and move out of the guiding pipeline 11 driven by the rack 24. When the driving frame 15 moves back and resets, the pressing arm 23 will rotate clockwise by 90 degrees and return to the guiding pipeline 11 driven by the rack 24. If a steel ball gets stuck at this time and cannot smoothly pass through the window on the cage and fall into the spherical housing, the pressing arm 23 will press the steel ball accordingly to assist the steel ball to enter the spherical housing to complete the installation;

[0044] When one steel ball is completed, the second motor 9 drives the steel ball installation mechanism to rotate around the rocker 17 and the plug 18 as the axis, so as to achieve azimuth adjustment and automatically carry out the installation work of the next steel ball. This is repeated until all the steel balls are installed. Then, the runner 3 will transfer the assembled constant velocity joint to the leak port, so that the constant velocity joint will automatically fall and be discharged through the leak port.

[0045] The above embodiments are only the preferred embodiments of the present invention and cannot be used to limit the scope of protection of the present invention. Any non-substantial changes and substitutions made by those skilled in the art based on the present invention belong to the scope of protection required by the present invention.

Claims

1. A universal joint assembly device for a drive shaft assembly, characterized in that, Comprising: A base table (1), on the top of the base table (1) there is a transfer mechanism and a housing (4), and a steel ball mounting mechanism is arranged inside the housing (4); The transfer mechanism includes a runner (3) rotatably arranged on the base table (1) for transferring the universal joint spherical shell, and a plurality of positioning ports (10) distributed in a ring are arranged on the runner (3), and the positioning ports (10) are used for limiting the spherical shell; The steel ball mounting mechanism includes a funnel (8) that can be lifted and rotated, a guiding pipe (11) is fixedly arranged at the bottom of the funnel (8), and a rocker (17) that can swing back and forth is arranged on one side of the guiding pipe (11), so as to adjust the angle of the universal joint cage; A support frame (12) is arranged on the guiding pipe (11), a reciprocating wheel disc (14) is rotatably mounted on the support frame (12), a third motor (13) for driving the reciprocating wheel disc (14) to rotate is fixedly arranged on the support frame (12), a driving frame (15) that can reciprocate along with the reciprocating wheel disc (14) is arranged on the support frame (12), a push rod (16) is fixedly installed on one side of the driving frame (15), one end of the push rod (16) penetrates through the guiding pipe (11) and is hinged with a slider (161), and the slider (161) is slidably connected with the rocker (17), so as to drive the rocker (17) to swing back and forth.

2. The universal joint assembly device of the drive shaft assembly according to claim 1, characterized in that, A first motor (2) is arranged at the bottom of the base table (1), and the shaft rod of the runner (3) is fixedly connected with the output shaft of the first motor (2).

3. The universal joint assembly device of the drive shaft assembly according to claim 1, characterized in that, A leak port is arranged on one side of the base table (1), and the leak port corresponds to the corresponding positioning port (10), so that after the universal joint is assembled, it can be transferred to the leak port by the runner (3) and dropped and discharged.

4. The universal joint assembly device of the drive shaft assembly according to claim 1, characterized in that, Sliding frames (5) are fixedly installed on both inner walls of the housing (4), and the same shaft frame (7) is slidably mounted up and down on the two sliding frames (5), the funnel (8) is rotatably connected with the shaft frame (7), and two hydraulic rods (6) are fixedly installed on the top inner wall of the housing (4), and the output rods of the two hydraulic rods (6) are fixedly connected with the shaft frame (7), so as to drive the whole steel ball mounting mechanism to lift stably.

5. The universal joint assembly device of the drive shaft assembly according to claim 4, characterized in that, A second motor (9) for driving the steel ball mounting mechanism to rotate is fixedly installed on the shaft frame (7), and the second motor (9) is in transmission connection with the funnel (8).

6. The universal joint assembly device of the drive shaft assembly according to claim 1, characterized in that, The driving frame (15) is limitedly and slidably mounted with a push rod (19), one end of which is fixedly mounted with a push block (21) extending into the guide pipe (11) and used to press against the steel ball, the push rod (19) is sleeved with a spring (20), the two ends of the spring (20) respectively press against the driving frame (15) and the push block (21), and the push rod (16) is provided with a notch (22) for the steel ball to pass through, so that when the driving frame (15) moves, the push rod (16) can not only drive the rocker (17) to swing, so that the rocker (17) adjusts the angle between the retaining frame and the spherical shell, but also align the notch (22) with the guide pipe (11), so that the steel ball can automatically fall into the spherical shell, and also push the push rod (19) and the push block (21) to limit another steel ball, so as to avoid too many steel balls falling in at one time.

7. The universal joint assembly device for a drive shaft assembly according to claim 1, wherein A pressing arm (23) composed of a half gear and an arc-shaped rod is rotatably provided on one side of the guide pipe (11), and a rack (24) that can transmit power to the half gear is provided at the bottom of the driving frame (15), so that when the driving frame (15) drives the rack (24) close to the pressing arm (23), the pressing arm (23) can be withdrawn from the guide pipe (11), so that the steel ball can smoothly fall into the spherical shell, and after the driving frame (15) is reset, it will drive the pressing arm (23) back into the guide pipe (11) and press the steel ball that is easily stuck.

8. The universal joint assembly device of the drive shaft assembly according to claim 1, characterized in that, The bottom end of the rocker (17) is rotatably provided with a plug (18) for inserting into the star-shaped sleeve, so that the rocker (17) can smoothly adjust the angle of the star-shaped sleeve and the retaining frame, and also ensures that when the steel ball mounting mechanism is rotated to adjust the position, the star-shaped sleeve, the retaining frame and the spherical shell will not be driven to rotate together.

9. The universal joint assembly device of the drive shaft assembly according to claim 1, characterized in that, Two arc-shaped sliding openings are provided on both sides of the support frame (12), and a pair of sliding shafts are provided on both sides of the rocker (17). The four sliding shafts extend into corresponding arc-shaped sliding openings and are slidably connected to the corresponding arc-shaped sliding openings, thereby reasonably controlling the swing angle of the rocker (17).

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