Auxiliary assembling device for ball spline transmission shaft

Abstract

A ball spline transmission shaft auxiliary assembly device is used in the technical field of vehicle chassis transmission shaft assembly. A vertical column is fixedly connected to the upper surface of the bottom plate, a transverse plate is fixedly connected to the upper surface of the vertical column, a groove is formed in the front face of the transverse plate, a first sliding hole is formed in the transverse plate, a first cylinder is attached to the inner wall of the first sliding hole, and first electric push rods are fixedly connected to the bottom of the first cylinder and the upper surface of the bottom plate. The surface of the first cylinder is fixedly connected with a first bearing, and the outer ring of the first bearing is fixedly connected with a first connecting frame. According to the utility model, the traditional assembly mode of manually assembling the sealing cover is upgraded to a device-assisted assembly mode, so that the assembly efficiency is improved, and the labor intensity of assembly personnel is reduced.

Description

Technical Field

[0001] This utility model relates to the field of vehicle chassis drive shaft assembly technology, specifically an auxiliary assembly device for ball spline drive shafts. Background Technology

[0002] Currently, when assembling ball spline drive shafts for special vehicles, the parts are usually installed manually on a flat surface. However, due to the heavy weight of the drive shaft, the assemblers need to frequently move the drive shaft to install the parts, which not only consumes a lot of physical strength but also leads to low assembly efficiency. Summary of the Invention

[0003] To overcome the shortcomings of the existing technology, the purpose of this invention is to provide an auxiliary assembly device for ball spline drive shafts, so as to solve the problems of low assembly efficiency and high labor intensity of drive shafts.

[0004] To achieve the above-mentioned objectives, this utility model provides an auxiliary assembly device for a ball spline drive shaft, comprising a base plate, a column fixedly connected to the upper surface of the base plate, a horizontal plate fixedly connected to the upper surface of the column, a groove on the front of the horizontal plate, a first sliding hole inside the horizontal plate, a first cylinder fitted into the inner wall of the first sliding hole, a first electric push rod fixedly connected to the bottom of the first cylinder and the upper surface of the base plate, a first bearing fixedly connected to the surface of the first cylinder, a first connecting frame fixedly connected to the outer ring of the first bearing, a left support frame fixedly connected to the front of the first connecting frame, a second bearing fixedly connected to the surface of the first cylinder, a second connecting frame fixedly connected to the outer ring of the second bearing, a right support frame fixedly connected to the front of the second connecting frame, and a groove on the front of the horizontal plate. The second sliding hole has an L-shaped plate attached to its inner wall. The bottom of the L-shaped plate is fixedly connected to the top of the first cylinder. A second electric push rod is fixedly connected to the front of the L-shaped plate. A rectangular plate is fixedly connected to the front of the second electric push rod. A second cylinder is fixedly connected to the upper surface of the rectangular plate. Both the first and second connecting frames have strip-shaped holes inside. The inner wall of the strip-shaped holes is attached to the surface of the second cylinder. A positioning support column is fixedly connected to the upper surface of the base plate. Positioning grooves are provided on both the left and right sides of the positioning support column. A top block is attached to the inner wall of the positioning groove. A through hole is provided inside the top block. A fixing bolt is attached to the inner wall of the through hole. A threaded hole is provided inside the positioning support column. The inner wall of the threaded hole is threadedly connected to the surface of the fixing bolt.

[0005] The present invention is further configured such that both the left support frame and the right support frame are arc-shaped, and the center of the left support frame and the center of the right support frame coincide with the axis of the positioning support column.

[0006] The present invention is further configured such that the front of the groove is an opening, and the groove is located above the positioning support column.

[0007] The present invention is further configured such that the length of the strip hole is greater than the diameter of the second cylinder, and the width of the strip hole is equal to the diameter of the second cylinder.

[0008] The present invention is further configured such that the depth of the positioning groove is less than the width of the top block, and the height of the positioning groove is equal to the height of the top block.

[0009] The present invention is further configured such that pads are fixedly connected to the inner surfaces of the left support frame and the right support frame.

[0010] Compared with the prior art, the technical effects achieved by this utility model are as follows:

[0011] 1. The ball spline drive shaft auxiliary assembly device of this utility model can position and support the drive shaft through the cooperation of the positioning support column and the top block. At the same time, when the drive shaft is placed on the top block, the left support frame and the right support frame can automatically clamp the drive shaft through the cooperation of the first cylinder, the first bearing, the first connecting frame, the second bearing, the second connecting frame, the L-shaped plate, the second electric push rod, the rectangular plate, the second cylinder and the strip hole. At this time, the traditional assembly method of manual assembly and sealing is upgraded to the device-assisted assembly method through this auxiliary assembly device, thereby improving the assembly efficiency and reducing the labor intensity of the assembly personnel.

[0012] 2. The ball spline drive shaft auxiliary assembly device of this utility model can adjust the height of the left support frame and the right support frame according to the different lengths of the drive shaft by means of the first electric push rod. At the same time, the top block and the positioning groove can be quickly disassembled and assembled by means of the cooperation of the fixing bolt and the threaded hole. Furthermore, by setting multiple positioning grooves at equal intervals on the positioning support column, the top block and the positioning support column have the function of positioning and locking at different heights. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model.

[0014] Figure 2 yes Figure 1 Sectional view at point AA.

[0015] Figure 3 This is a left view of the structure of this utility model.

[0016] Figure 4 yes Figure 1 Top view of the middle horizontal plate.

[0017] Figure 5 yes Figure 1 Top view of the first connecting frame.

[0018] Figure 6 yes Figure 1 Top view of the second connecting frame.

[0019] Figure 7 yes Figure 1 Side view of the top center block.

[0020] The attached diagram lists the components represented by each number as follows:

[0021] 1. Base plate; 2. Column; 3. Horizontal plate; 4. Groove; 5. First sliding hole; 6. First cylinder; 7. First electric push rod; 8. First bearing; 9. First connecting frame; 10. Left support frame; 11. Second bearing; 12. Second connecting frame; 13. Right support frame; 14. Second sliding hole; 15. L-shaped plate; 16. Second electric push rod; 17. Rectangular plate; 18. Second cylinder; 19. Strip hole; 20. Positioning support column; 21. Positioning groove; 22. Top block; 23. Through hole; 24. Fixing bolt; 25. Threaded hole; 26. Pad. Detailed Implementation

[0022] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0023] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0024] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7As shown, the auxiliary assembly device for a ball spline drive shaft of this utility model includes a base plate 1, a column 2 fixedly connected to the upper surface of the base plate 1, a horizontal plate 3 fixedly connected to the upper surface of the column 2, a groove 4 on the front of the horizontal plate 3, a first sliding hole 5 inside the horizontal plate 3, a first cylinder 6 fitted to the inner wall of the first sliding hole 5, a first electric push rod 7 fixedly connected to the bottom of the first cylinder 6 and the upper surface of the base plate 1, a first bearing 8 fixedly connected to the surface of the first cylinder 6, a first connecting frame 9 fixedly connected to the outer ring of the first bearing 8, a left support frame 10 fixedly connected to the front of the first connecting frame 9, a second bearing 11 fixedly connected to the surface of the first cylinder 6, a second connecting frame 12 fixedly connected to the outer ring of the second bearing 11, a right support frame 13 fixedly connected to the front of the second connecting frame 12, a second sliding hole 14 inside the horizontal plate 3, an L-shaped plate 15 fitted to the inner wall of the second sliding hole 14, and the L-shaped plate... The bottom of L-shaped plate 15 is fixedly connected to the top of the first cylinder 6. The front of L-shaped plate 15 is fixedly connected to the second electric push rod 16. The front of the second electric push rod 16 is fixedly connected to the rectangular plate 17. The upper surface of the rectangular plate 17 is fixedly connected to the second cylinder 18. The interior of the first connecting frame 9 and the interior of the second connecting frame 12 are both provided with strip holes 19. The inner wall of the strip holes 19 is in contact with the surface of the second cylinder 18. The upper surface of the bottom plate 1 is fixedly connected to the positioning support column 20. The left and right sides of the positioning support column 20 are both provided with positioning grooves 21. The inner wall of the positioning groove 21 is in contact with the top block 22. The interior of the top block 22 is provided with a through hole 23. The inner wall of the through hole 23 is in contact with the fixing bolt 24. The interior of the positioning support column 20 is provided with a threaded hole 25. The inner wall of the threaded hole 25 is threadedly connected to the surface of the fixing bolt 24. The inner surface of the left support frame 10 and the inner surface of the right support frame 13 are both fixedly connected to the pad block 26.

[0025] The left support frame 10 and the right support frame 13 are both arc-shaped. The center of the left support frame 10 and the center of the right support frame 13 coincide with the axis of the positioning support column 20. The front of the groove 4 is open and the groove 4 is located above the positioning support column 20. The length of the strip hole 19 is greater than the diameter of the second cylinder 18, and the width of the strip hole 19 is equal to the diameter of the second cylinder 18. The depth of the positioning groove 21 is less than the width of the top block 22, and the height of the positioning groove 21 is equal to the height of the top block 22.

[0026] It should be noted that the horizontal plate 3 is supported by the column 2. When the drive shaft is inserted into the positioning support column 20, the drive shaft is located in the groove 4. The drive shaft is positioned and supported by the positioning support column 20 and the top block 22. The height of the left support frame 10 and the right support frame 13 can be adjusted according to the different lengths of the drive shaft by the first electric push rod 7. At the same time, through the cooperation of the L-shaped plate 15 and the second sliding hole 14, the first cylinder 6 can only move up and down in the first sliding hole 5.

[0027] The left support frame 10 can rotate around the first cylinder 6 through the cooperation of the first bearing 8 and the first connecting frame 9. The right support frame 13 can rotate around the first cylinder 6 through the cooperation of the second bearing 11 and the second connecting frame 12. The rectangular plate 17 can be moved back and forth by the second electric push rod 16. When the distance between the rectangular plate 17 and the first cylinder 6 decreases, the opening degree between the left support frame 10 and the right support frame 13 decreases through the cooperation of the second cylinder 18 and the strip hole 19. When the distance between the rectangular plate 17 and the first cylinder 6 increases, the opening degree between the left support frame 10 and the right support frame 13 increases through the cooperation of the second cylinder 18 and the strip hole 19. When the left support frame 10 and the right support frame 13 clamp the drive shaft, the drive shaft can be supported and fixed by the left support frame 10 and the right support frame 13. The pad 26 is made of nylon material to prevent the paint surface of the drive shaft from being crushed or scratched when the left support frame 10 and the right support frame 13 clamp the drive shaft.

[0028] The working principle of this utility model is as follows: First, the distance between the rectangular plate 17 and the first cylinder 6 is increased by the second electric push rod 16. Then, the opening and closing degree between the left support frame 10 and the right support frame 13 is increased through the cooperation of the second cylinder 18 and the strip hole 19. When the opening and closing degree between the left support frame 10 and the right support frame 13 reaches its maximum value, the second electric push rod 16 stops retracting. Next, the drive shaft is inserted into the positioning support column 20, and the drive shaft contacts the upper surface of the top block 22. At this time, the top block 22 supports the drive shaft, and the positioning support column 20 positions the drive shaft. Then, the distance between the rectangular plate 17 and the first cylinder 6 is decreased by the second electric push rod 16, and the distance between the rectangular plate 17 and the first cylinder 6 is decreased through the cooperation of the second cylinder 18 and the strip hole 19. The cooperation with the strip hole 19 reduces the opening degree between the left support frame 10 and the right support frame 13. When the left support frame 10 and the right support frame 13 clamp the drive shaft, the second electric push rod 16 stops extending. At this time, the drive shaft is supported and fixed by the left support frame 10 and the right support frame 13. When it is necessary to remove the drive shaft, the second electric push rod 16 increases the distance between the rectangular plate 17 and the first cylinder 6. The cooperation between the second cylinder 18 and the strip hole 19 increases the opening degree between the left support frame 10 and the right support frame 13. When the opening degree between the left support frame 10 and the right support frame 13 increases to the maximum value, the second electric push rod 16 stops retracting. At this time, the drive shaft can be directly removed from the positioning support column 20.

[0029] When it is necessary to change the height of the left support frame 10 and the right support frame 13, the height of the left support frame 10 and the right support frame 13 can be changed by retracting or extending the first electric push rod 7. When it is necessary to change the height of the top block 22, first unscrew the fixing bolt 24 from the threaded hole 25, then insert the top block 22 into the positioning groove 21 at the specified height, and screw the fixing bolt 24 into the corresponding threaded hole 25. At this time, the top block 22 can be fixed in the positioning groove 21 at the specified height by the cooperation of the fixing bolt 24 and the threaded hole 25.

[0030] The above description is merely a preferred embodiment of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model. Structures, devices, and operating methods not specifically described or explained in this utility model, unless otherwise specified or limited, shall be implemented using conventional methods in the field.

Claims

1. A ball spline shaft assembly aid characterized by: The system includes a base plate (1), a column (2) fixedly connected to the upper surface of the base plate (1), a horizontal plate (3) fixedly connected to the upper surface of the column (2), a groove (4) on the front of the horizontal plate (3), a first sliding hole (5) inside the horizontal plate (3), a first cylinder (6) fitted into the inner wall of the first sliding hole (5), a first electric push rod (7) fixedly connected to the bottom of the first cylinder (6) and the upper surface of the base plate (1), and a first bearing (8) fixedly connected to the surface of the first cylinder (6). The outer ring of the first bearing (8) is fixedly connected to a first connecting frame (9), and the front of the first connecting frame (9) is fixedly connected to a left support frame (10). The surface of the first cylinder (6) is fixedly connected to a second bearing (11), the outer ring of the second bearing (11) is fixedly connected to a second connecting frame (12), and the front of the second connecting frame (12) is fixedly connected to a right support frame (13). The inside of the horizontal plate (3) is provided with a second sliding hole (14), and the inner wall of the second sliding hole (14) is fitted with an L-shaped plate. (15) The bottom of the L-shaped plate (15) is fixedly connected to the top of the first cylinder (6). A second electric push rod (16) is fixedly connected to the front of the L-shaped plate (15). A rectangular plate (17) is fixedly connected to the front of the second electric push rod (16). A second cylinder (18) is fixedly connected to the upper surface of the rectangular plate (17). A strip hole (19) is opened in the interior of the first connecting frame (9) and the interior of the second connecting frame (12). The inner wall of the strip hole (19) is attached to the surface of the second cylinder (18). The upper surface of the base plate (1) is fixedly connected with a positioning support column (20). Positioning grooves (21) are provided on both the left and right sides of the positioning support column (20). A top block (22) is attached to the inner wall of the positioning groove (21). A through hole (23) is provided inside the top block (22). A fixing bolt (24) is attached to the inner wall of the through hole (23). A threaded hole (25) is provided inside the positioning support column (20). The inner wall of the threaded hole (25) is threadedly connected to the surface of the fixing bolt (24).

2. A ball spline shaft assembly aid according to claim 1, wherein: Both the left support frame (10) and the right support frame (13) are arc-shaped, and the center of the left support frame (10) and the center of the right support frame (13) coincide with the axis of the positioning support column (20).

3. The ball spline shaft assembly aid of claim 1, wherein: The front of the groove (4) is open, and the groove (4) is located above the positioning support column (20).

4. The ball spline shaft assembly aid of claim 1, wherein: The length of the strip hole (19) is greater than the diameter of the second cylinder (18), and the width of the strip hole (19) is equal to the diameter of the second cylinder (18).

5. The ball spline shaft assembly aid of claim 1, wherein: The depth of the positioning groove (21) is less than the width of the top block (22), and the height of the positioning groove (21) is equal to the height of the top block (22).

6. The ball spline shaft assembly aid of claim 1, wherein: The inner surfaces of the left support frame (10) and the right support frame (13) are both fixedly connected with pads (26).

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