Driving shaft universal joint assembling and positioning device

Abstract

The utility model relates to the technical field of automobiles, and discloses a driving shaft universal joint assembling and positioning device which comprises a working table, a control panel is fixedly installed on one side of the working table, a supporting table is fixedly arranged on the top face of the working table, and a centering structure is movably arranged on the supporting table and comprises a baffle and a clamping block. The circle supporting assembly is movably arranged in the workbench and comprises a rack, a top plate, a gear column, a center box and a push plate, the push plate is arranged in the workbench in a sliding mode, the center box is fixedly arranged on the top face of the push plate, the top plate is fixedly arranged at one end of the rack, the rack is movably arranged in the center box, and the gear column is rotationally arranged in the center box; the elastic connection between the clamping blocks and the baffles adapts to the shape of the workpiece, the elastic connection between the racks and the center box elastically supports the inner ring of the workpiece, manual intervention is reduced, the device has certain self-adaptive positioning capacity, therefore, positioning errors are reduced, and the accuracy of assembly precision is guaranteed.

Description

Technical Field

[0001] This utility model belongs to the field of automotive technology, specifically, it relates to a drive shaft universal joint assembly and positioning device. Background Technology

[0002] In the automobile manufacturing process, the assembly precision of the drive shaft universal joint directly affects the vehicle's driving performance and safety.

[0003] Existing technology discloses a rapid and precise positioning and drilling device for universal joints (CN222520564U), which relates to the field of universal joint technology. The device includes a base, a drilling device on the top of the base, a rotating mechanism on the top of the base, and a positioning mechanism on the top of the base for rapid and precise positioning and drilling of the universal joint. The positioning mechanism includes: a lifting component on the top of the base; a centering component on the top of the mounting plate; and a kinetic energy component on the top of the mounting plate. Through the centering component and the kinetic energy component, an electric push rod moves a triangular block. The movement of the triangular block causes the right clamping rod to rotate clockwise and the left clamping rod to rotate counterclockwise via the right and left rollers. This causes the right and left clamping arc blocks to move synchronously towards each other, centering and clamping the end of the universal joint, thus achieving rapid and precise positioning and drilling.

[0004] The search revealed that the existing technology is specifically designed for cross-shaped universal joints, which has certain limitations in use and cannot meet the adaptation requirements of other automotive universal joints. In addition, the existing technology requires manual operation, which not only lacks self-adaptive capabilities but also makes positioning prone to errors, affecting assembly accuracy.

[0005] In view of this, this utility model is proposed. Utility Model Content

[0006] To solve the above-mentioned technical problems, the basic concept of the technical solution adopted by this utility model is as follows:

[0007] A drive shaft universal joint assembly and positioning device, comprising

[0008] A workbench, wherein a control panel is fixedly installed on one side of the workbench and a support platform is fixedly installed on the top surface of the workbench;

[0009] A centering structure is movably mounted on a support platform. The centering structure includes a baffle and a clamping block. The baffle is fixedly mounted on the top surface of the support platform, and the clamping block is slidably mounted on the support platform. The clamping block is elastically connected to the baffle.

[0010] A circular support assembly is movably disposed within a worktable. The circular support assembly includes a rack, a top plate, a gear column, a central box, and a push plate. The push plate is slidably disposed within the worktable. The central box is fixedly disposed on the top surface of the push plate. The top plate is fixedly disposed at one end of the rack. The rack is movably disposed within the central box. The gear column is rotatably disposed within the central box. There are four racks and four top plates. The gear column is driven between the four racks.

[0011] In a preferred embodiment of this utility model, the support platform is composed of a square platform and an octagonal platform. Four baffles are provided, and the four baffles are respectively located at the four corners of the top surface of the square platform. The baffles are in contact with the four inclined surfaces of the octagonal platform. A circular hole is provided in the support platform, and an inner groove is provided in the worktable. The circular hole communicates with the inner groove, and the push plate slides in the inner groove.

[0012] In a preferred embodiment of the present invention, the top surface of the octagonal platform is arrayed with four arc openings and four sliding grooves, the four arc openings and four sliding grooves are staggered, and each of the four sliding grooves is provided with a baffle, and the clamping block is slidably disposed in the sliding groove.

[0013] In a preferred embodiment of this utility model, the clamping block is an L-shaped block, and an arc-shaped groove is provided on the side of the clamping block near the circular hole. A square spring is fixedly provided between the clamping block and the baffle, and the baffle is elastically connected to the clamping block through the square spring.

[0014] In a preferred embodiment of this utility model, a cylinder is fixedly installed on the bottom surface of the workbench, the output end of the cylinder is connected to the bottom surface of the push plate, a bracket and a motor are fixedly installed on the top surface of the center box, the motor is located between the center box and the bracket, the output end of the motor is connected to the top of the gear column, and the control panel signals control the cylinder and the motor.

[0015] In a preferred embodiment of this utility model, a square cavity is provided inside the central box, and a gear column is rotatably connected inside the square cavity. The gear column consists of a round shaft and two gears. Each gear meshes with and drives a pair of racks. The four top plates are all located on the outside of the central box. A compression spring is fixedly installed between each of the four racks and the inner wall of the square cavity. The racks are elastically connected to the central box through the compression springs.

[0016] In a preferred embodiment of this utility model, the central box is provided with four slots in an array, the slots are provided corresponding to the rack and the top plate, the top plate is slidably disposed in the slots, and each pair of racks is arranged obliquely symmetrically with the gear column as the center.

[0017] Compared with the prior art, the present invention has the following advantages:

[0018] 1. By setting a centering structure and a supporting structure, the centering structure can center-position universal joint structures such as cross shafts, while the supporting structure can center-support universal joints of the three-pin type. This avoids adaptation limitations during use and expands the applicability of the device.

[0019] 2. By setting up a centering structure and a supporting structure, the elastic connection between the clamping block and the baffle adapts to the shape of the workpiece. At the same time, the elastic connection between the rack and the center box provides elastic support for the inner ring of the workpiece, reducing manual intervention and enabling the device to have a certain adaptive positioning capability, thereby reducing positioning errors and ensuring accurate assembly precision.

[0020] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings. Attached Figure Description

[0021] In the attached diagram:

[0022] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0023] Figure 2 This is a schematic cross-sectional view of the overall structure of this utility model;

[0024] Figure 3 This is a schematic diagram of the internal cross-section of the workbench and the supporting assembly of this utility model;

[0025] Figure 4 This is a disassembly diagram of the centering structure in this utility model;

[0026] Figure 5 This is a disassembly diagram of the circular support component in this utility model.

[0027] In the diagram: 10. Workbench; 11. Support platform; 12. Control panel; 13. Cylinder; 14. Baffle; 15. Clamping block; 16. Inner groove; 17. Rack; 18. Top plate; 19. Gear column; 20. Center box; 21. Compression spring; 22. Arc opening; 23. Slide groove; 24. Square spring; 25. Push plate; 26. Bracket; 27. Slot; 28. Motor. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate this utility model.

[0029] A drive shaft universal joint assembly positioning device, such as Figure 1 , Figure 2 , Figure 3, Figure 4 and Figure 5 As shown, including

[0030] A workbench 10 is provided, with a control panel 12 fixedly installed on one side of the workbench 10 and a support platform 11 fixedly installed on the top surface of the workbench 10.

[0031] A centering structure is movably mounted on the support platform 11. The centering structure includes a baffle 14 and a clamping block 15. The baffle 14 is fixedly mounted on the top surface of the support platform 11, and the clamping block 15 is slidably mounted on the support platform 11. The clamping block 15 is elastically connected to the baffle 14.

[0032] The supporting assembly is movably disposed within the worktable 10. The supporting assembly includes a rack 17, a top plate 18, a gear column 19, a central box 20, and a push plate 25. The push plate 25 is slidably disposed within the worktable 10, the central box 20 is fixedly disposed on the top surface of the push plate 25, the top plate 18 is fixedly disposed on one end of the rack 17, the rack 17 is movably disposed within the central box 20, and the gear column 19 is rotatably disposed within the central box 20. There are four racks 17 and four top plates 18, and the gear column 19 is driven between the four racks 17.

[0033] Specifically, this device incorporates a centering structure and a support structure. The centering structure provides center positioning for universal joints such as cross shafts, while the support structure provides center support for universal joints of the three-pin type. This avoids compatibility limitations and expands the device's applicability. The elastic connection between the clamping block 15 and the baffle 14 adapts to the shape of the workpiece, while the elastic connection between the rack 17 and the center box 20 provides elastic support for the inner ring of the workpiece. This reduces manual intervention and gives the device a certain degree of adaptive positioning capability, thereby reducing positioning errors and ensuring accurate assembly precision.

[0034] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the support platform 11 consists of a square platform and an octagonal platform. Four baffles 14 are provided, with the four baffles 14 located at the four corners of the top surface of the square platform. The baffles 14 fit into the four inclined surfaces of the octagonal platform. A circular hole is provided in the support platform 11, and an inner groove 16 is provided in the worktable 10. The circular hole communicates with the inner groove 16, and the push plate 25 slides in the inner groove 16.

[0035] like Figure 4 As shown, the top surface of the octagonal platform is arrayed with four arc openings 22 and four sliding grooves 23. The four arc openings 22 and four sliding grooves 23 are arranged alternately. Each of the four sliding grooves 23 is provided with a baffle 14. The clamping block 15 is slidably disposed in the sliding groove 23.

[0036] like Figure 2 and Figure 4 As shown, the clamping block 15 is an L-shaped block. An arc-shaped groove is provided on the side of the clamping block 15 near the round hole. A square spring 24 is fixedly provided between the clamping block 15 and the baffle 14. The baffle 14 is elastically connected to the clamping block 15 through the square spring 24.

[0037] Specifically, the four clamping blocks 15 are arranged in a cross shape. In use, the universal joint workpiece of the cross shaft type is placed on the arc opening 22, so that the bottom end of the workpiece is inserted into the inner groove 16. At this time, the universal joint workpiece automatically squeezes the clamping blocks 15 on the four sides. The clamping blocks 15 move in the corresponding sliding groove 23 under the deformation of the square spring 24. When the arc groove fits the wall of the universal joint workpiece, the centering structure completes the positioning work.

[0038] like Figure 1 , Figure 2 , Figure 3 and Figure 5 As shown, a cylinder 13 is fixedly installed on the bottom surface of the workbench 10. The output end of the cylinder 13 is connected to the bottom surface of the push plate 25. A bracket 26 and a motor 28 are fixedly installed on the top surface of the center box 20. The motor 28 is located between the center box 20 and the bracket 26. The output end of the motor 28 is connected to the top of the gear column 19. The control panel 12 controls the cylinder 13 and the motor 28 with signals.

[0039] The working principle is as follows: When in use, the control panel 12 drives the cylinder 13 and motor 28 to start and stop. When the cylinder 13 starts, it pushes the push plate 25 to slide up and down in the inner groove 16, and at the same time pushes the support assembly to rise and fall. When the motor 28 starts, it drives the rotation of the gear column 19. When the gear column 19 meshes with the four racks 17, the compression spring 21 deforms in coordination. The racks 17 drive the corresponding top plate 18 to contract and expand in the slot 27, thereby providing elastic support for the inner ring of the universal joint workpiece.

[0040] like Figure 3 and Figure 5 As shown, a square cavity is provided inside the central box 20. A gear column 19 is rotatably connected inside the square cavity. The gear column 19 consists of a round shaft and two gears. Each gear meshes with and drives a pair of racks 17. Four top plates 18 are all located on the outside of the central box 20. A compression spring 21 is fixedly installed between each of the four racks 17 and the inner wall of the square cavity. The racks 17 are elastically connected to the central box 20 through the compression springs 21.

[0041] like Figure 5 As shown, four slots 27 are arrayed on the central box 20. The slots 27 are set corresponding to the rack 17 and the top plate 18. The top plate 18 is slidably set in the slots 27. Each pair of racks 17 is arranged obliquely symmetrically with the gear column 19 as the center.

[0042] Specifically, the two gears of the gear column 19 are arranged vertically. The two racks 17 meshing with the upper gear are arranged obliquely symmetrically, and the two racks 17 meshing with the lower gear are also arranged obliquely symmetrically. The difference is that the two racks 17 meshing with the upper gear and the two racks 17 meshing with the lower gear are arranged in a cross shape, and their orientations are different. In use, the workpiece is first placed on the top surface of the support table 11. The workpiece will automatically press against the corresponding clamping block 15. Under the action of the corresponding square spring 24, the four clamping blocks 15 move the workpiece... The workpiece is clamped and then driven by the control panel 12 to start the cylinder 13. The cylinder 13 pushes the support assembly into the inner ring of the workpiece. At this time, the motor 28 is started, and the motor 28 drives the gear column 19 to rotate. The gear column 19 meshes with the four racks 17 in different orientations and positions. At this time, the compression spring 21 deforms in coordination with the movement of the racks 17. At the same time, the movement of the racks 17 drives the corresponding top plate 18 to move in the slot 27. At this time, the four top plates realize the simultaneous contraction or expansion movement, thereby providing elastic support for the inner ring of the universal joint workpiece.

[0043] It is understood that this utility model has been described through some embodiments, and those skilled in the art will recognize that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of this utility model. Furthermore, under the teachings of this utility model, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the protection scope of this utility model.

Claims

1. A drive shaft universal joint assembly positioning device, characterized by, include A workbench (10) is provided with a control panel (12) fixedly installed on one side of the workbench (10) and a support platform (11) fixedly installed on the top surface of the workbench (10). A centering structure is movably mounted on a support platform (11). The centering structure includes a baffle (14) and a clamping block (15). The baffle (14) is fixedly mounted on the top surface of the support platform (11), and the clamping block (15) is slidably mounted on the support platform (11). The clamping block (15) is elastically connected to the baffle (14). A circular support assembly is movably disposed within a workbench (10). The circular support assembly includes a rack (17), a top plate (18), a gear column (19), a center box (20), and a push plate (25). The push plate (25) is slidably disposed within the workbench (10). The center box (20) is fixedly disposed on the top surface of the push plate (25). The top plate (18) is fixedly disposed at one end of the rack (17). The rack (17) is movably disposed within the center box (20). The gear column (19) is rotatably disposed within the center box (20). There are four racks (17) and four top plates (18). The gear column (19) is driven between the four racks (17).

2. A drive shaft universal joint assembly positioning device as set forth in claim 1, wherein, The support platform (11) consists of a square platform and an octagonal platform. Four baffles (14) are provided, and the four baffles (14) are located at the four corners of the top surface of the square platform. The baffles (14) are in contact with the four inclined surfaces of the octagonal platform. A circular hole is provided in the support platform (11). An inner groove (16) is provided in the worktable (10). The circular hole communicates with the inner groove (16). The push plate (25) slides in the inner groove (16).

3. A drive shaft universal joint assembly positioning device as set forth in claim 2, wherein, The top surface of the octagonal platform is arrayed with four arc openings (22) and four sliding grooves (23). The four arc openings (22) and four sliding grooves (23) are staggered. Each of the four sliding grooves (23) is provided with a baffle (14). The clamping block (15) is slidably disposed in the sliding groove (23).

4. A drive shaft universal joint assembly positioning device as set forth in claim 3, wherein, The clamping block (15) is an L-shaped block. An arc-shaped groove is provided on the side of the clamping block (15) near the round hole. A square spring (24) is fixedly provided between the clamping block (15) and the baffle (14). The baffle (14) is elastically connected to the clamping block (15) through the square spring (24).

5. A drive shaft universal joint assembly positioning device as set forth in claim 2, wherein, A cylinder (13) is fixedly installed on the bottom surface of the workbench (10). The output end of the cylinder (13) is connected to the bottom surface of the push plate (25). A bracket (26) and a motor (28) are fixedly installed on the top surface of the center box (20). The motor (28) is located between the center box (20) and the bracket (26). The output end of the motor (28) is connected to the top of the gear column (19). The control panel (12) signals control the cylinder (13) and the motor (28).

6. A drive shaft universal joint assembly positioning device as set forth in claim 5, wherein, The central box (20) has a square cavity, and a gear column (19) is rotatably connected inside the square cavity. The gear column (19) consists of a round shaft and two gears. Each gear meshes with a pair of racks (17). The four top plates (18) are all located on the outside of the central box (20). A compression spring (21) is fixed between each of the four racks (17) and the inner wall of the square cavity. The racks (17) are elastically connected to the central box (20) through the compression springs (21).

7. A drive shaft universal joint assembly positioning device as set forth in claim 6, wherein, The central box (20) has four slots (27) arranged in an array. The slots (27) are set to correspond to the rack (17) and the top plate (18). The top plate (18) is slidably set in the slots (27). Each pair of racks (17) is arranged obliquely symmetrically with the gear column (19) as the center.

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