Hasp type quick-change tool

Abstract

A hasp type quick-change tool is mainly used in the technical field of vehicle chassis transmission shaft tests. A cover plate is fixedly connected to the upper surface of the mounting base, a sliding groove is formed in the bottom of the cover plate, clamping jaws are arranged on the inner wall of the sliding groove and the upper surface of the mounting base in an attached mode, springs are fixedly connected to one ends of the clamping jaws and one end of the sliding groove, trapezoidal blocks are fixedly connected to the other ends of the clamping jaws, and fixing blocks are arranged on the surfaces of the trapezoidal blocks in an attached mode. Traditional common flange connection is replaced by clamping jaw connection, the installation efficiency of the transmission shaft is greatly improved, the time needed for installation is effectively shortened, in the disassembly link, the tedious mode of disassembling bolts is abandoned, the mode is changed into the simple operation of pushing and pulling the transmission shaft, and therefore the transmission shaft can be rapidly disassembled, and the labor intensity of workers is reduced. And the labor intensity of testers is greatly reduced.

Description

Technical Field

[0001] This utility model relates to the field of vehicle chassis drive shaft testing technology, specifically a snap-on quick-change tooling. Background Technology

[0002] In the testing of driveshafts for special vehicles, the currently widely used clamping method involves using double-sided flanges and multiple bolts for connection. However, this method is extremely cumbersome in practice. Especially when testing heavy-duty driveshafts, test personnel must first move the heavy driveshaft to the testing machine, then precisely align the holes on the testing machine flange and the driveshaft flange, and finally install the bolts one by one. This not only consumes a great deal of physical strength but also takes a long time, severely impacting testing efficiency and increasing testing costs. Summary of the Invention

[0003] To overcome the shortcomings of the existing technology, the purpose of this invention is to provide a snap-on quick-change tooling that can improve the speed of test installation and disassembly of drive shafts and simplify the operation process.

[0004] To achieve the above-mentioned objectives, this utility model provides a snap-on quick-change tooling including a mounting base. A cover plate is fixedly connected to the upper surface of the mounting base. A sliding groove is formed at the bottom of the cover plate. A claw is fitted to the inner wall of the sliding groove and the upper surface of the mounting base. A spring is fixedly connected to one end of the claw and one end of the sliding groove. A trapezoidal block is fixedly connected to the other end of the claw. The surface of the trapezoidal block is fitted to the conical surface of the fixed block. The fixed block is a conical block. A first groove is formed on the surface of the fixed block. The inner wall of the first groove is fitted to the surface of the claw. A connecting post is fixedly connected to the inner wall of the fixed block. A connecting plate is fixedly connected to the upper surface of the connecting post. A conical slider is sleeved on the surface of the connecting post. A positioning cylinder is sleeved on the surface of the connecting post. A first hollow plate is fixedly connected to the surface of the positioning cylinder and the inner wall of the mounting base.

[0005] The present invention is further configured such that the axis of the connecting disc coincides with the axis of the connecting column.

[0006] The present invention is further configured such that a cylinder is fixedly connected to the upper surface of the connecting plate, a second hollow plate is fitted onto the surface of the cylinder, a circular hole is formed inside the second hollow plate, a bolt is fitted onto the inner wall of the circular hole, a retaining ring is fixedly connected to the surface of the bolt, the upper surface of the retaining ring is fitted onto the bottom of the second hollow plate, a threaded cylinder is threaded onto the surface of the bolt, the bottom of the threaded cylinder is fixedly connected to the upper surface of the connecting plate, a first rectangular hole is formed on the surface of the cylinder, a second groove is formed on the inner wall of the second hollow plate, clamping blocks are fitted onto the inner walls of the second groove and the first rectangular hole, a second rectangular hole is formed inside the clamping block, a cylinder is fitted onto the inner wall of the second rectangular hole, and both ends of the cylinder are fixedly connected to the inner wall of the second groove.

[0007] The present invention is further configured such that the angle between the second rectangular hole and the horizontal plane is 60°, and the length of the second rectangular hole is greater than the diameter of the cylinder.

[0008] The present invention is further configured such that a circular groove is formed on the upper surface of the connecting plate, a circular plate is fixedly connected to the inner wall of the circular groove, and a toothed groove is formed on the upper surface of the circular plate.

[0009] The present invention is further configured such that the circular plate is located in the middle of the connecting disk, and the thickness of the circular plate is less than the depth of the circular groove.

[0010] The present invention is further configured such that the bottom diameter of the slider is equal to the bottom diameter of the first groove.

[0011] Compared with the prior art, the technical effects achieved by this utility model are as follows:

[0012] 1. By replacing the traditional flange connection with a claw connection, the installation efficiency of the drive shaft is greatly improved, and the installation time is effectively reduced. In addition, the cumbersome method of removing bolts is eliminated in the disassembly process, and a simple push-pull operation of the drive shaft is used instead, thereby realizing the rapid disassembly of the drive shaft and greatly reducing the labor intensity of the test personnel.

[0013] 2. Through the cooperation of the cylinder, the second hollow plate, the round hole, the bolt, the retaining ring, the threaded cylinder, the first rectangular hole, the second groove, the clamping block, the second rectangular hole and the cylinder, the user can easily realize the quick installation and disassembly of the drive shaft and the connecting plate by turning the bolt. Attached Figure Description

[0014] To make the content of this utility model easier to understand, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings, wherein:

[0015] Figure 1 This is a schematic diagram of the structure of this utility model.

[0016] Figure 2 yes Figure 1 Enlarged view of point A in the middle.

[0017] Figure 3 yes Figure 1 Top view of the mounting bracket.

[0018] Figure 4 yes Figure 1 Top view of the middle cover plate.

[0019] Figure 5 yes Figure 1 Bottom view of the middle cover plate.

[0020] Figure 6 yes Figure 1 Top view of the fixed block.

[0021] Figure 7 yes Figure 1 Top view of the connecting disc.

[0022] Figure 8 yes Figure 1 Top view of the middle slider.

[0023] Figure 9 yes Figure 1 Top view of the middle cylinder.

[0024] Figure 10 yes Figure 1 Front view of the middle cylinder.

[0025] Figure 11 yes Figure 1 Top view of the second hollow slab.

[0026] Figure 12 yes Figure 1 A schematic diagram of the clamping block.

[0027] In the diagram: 1. Mounting base; 2. Cover plate; 3. Slide groove; 4. Claw; 5. Spring; 6. Trapezoidal block; 7. Fixing block; 8. First groove; 9. Connecting column; 10. Connecting plate; 11. Slider; 12. Positioning cylinder; 13. First hollow plate; 14. Cylinder; 15. Second hollow plate; 16. Circular hole; 17. Bolt; 18. Retaining ring; 19. Threaded cylinder; 20. First rectangular hole; 21. Second groove; 22. Clamping block; 23. Second rectangular hole; 24. Cylinder; 25. Circular groove; 26. Circular plate; 27. Toothed groove. Detailed Implementation

[0028] 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.

[0029] 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.

[0030] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Figure 9 , Figure 10 , Figure 11 , Figure 12 As shown, the snap-on quick-change tooling of this utility model mainly includes a mounting base 1. A cover plate 2 is fixedly connected to the upper surface of the mounting base 1. A sliding groove 3 is provided at the bottom of the cover plate 2. A claw 4 is fitted to both the inner wall of the sliding groove 3 and the upper surface of the mounting base 1. A spring 5 is fixedly connected to one end of the claw 4 and one end of the sliding groove 3. A trapezoidal block 6 is fixedly connected to the other end of the claw 4. The surface of the trapezoidal block 6 is fitted to the conical surface of the fixing block 7. The fixing block 7 is a conical block. A first groove 8 is provided on the surface of the fixing block 7. The inner wall of the first groove 8 is fitted to the surface of the claw 4. A connecting post 9 is fixedly connected to the inner wall of the fixing block 7. A connecting plate 10 is fixedly connected to the upper surface of the connecting post 9. A conical slider 11 is sleeved on the surface of the connecting post 9. A positioning cylinder 12 is sleeved on the surface of the connecting post 9. A first hollow plate 13 is fixedly connected to both the surface of the positioning cylinder 12 and the inner wall of the mounting base 1.

[0031] The axis of the connecting disk 10 coincides with the axis of the connecting column 9; the bottom diameter of the slider 11 is equal to the bottom diameter of the first groove 8.

[0032] It should be noted that after the connecting post 9 is inserted into the positioning cylinder 12, the positioning cylinder 12 positions the connecting post 9. The fixing block 7 is a conical block. When the connecting plate 10 is pushed downwards, causing the fixing block 7 to press the claw 4 from top to bottom, the mutual squeezing between the conical surface of the fixing block 7 and the claw 4 automatically increases the distance between adjacent claws 4 and compresses the spring 5. When the fixing block 7 moves to the inside of the claw 4, the elastic force of the spring 5 causes the claw 4 to contact the first groove 8. At this time, through the cooperation of the claw 4, the fixing block 7, and the first groove 8, the connecting post 9 can be locked onto the mounting base 1. Through the cooperation of the claw 4 and the first groove 8, the fixing block 7 rotates with the mounting base 1. When the fixing block 7 is locked... As the inner side of the claw 4 continues to move downward, the distance between adjacent claws 4 automatically increases due to the compression between the conical surface of the fixing block 7 and the trapezoidal block 7. When the distance between adjacent claws 4 increases to its maximum value, the slider 11 can slide directly to the inner side of the claw 4 and make the slider 11 contact the fixing block 7. When the slider 11 moves to the inner side of the claw 4, the connecting plate 10 is rotated to make the claw 4 and the first groove 8 on the fixing block 7 misaligned. When the connecting plate 10 is pushed upward to push the slider 11 through the fixing block 7 and make the slider 11 move upward from the inner side of the claw 4, the distance between adjacent claws 4 automatically increases due to the compression between the conical surface of the slider 11 and the claw 4, and the fixing block 7 can be moved directly out from the inner side of the claw 4.

[0033] A cylinder 14 is fixedly connected to the upper surface of the connecting plate 10. A second hollow plate 15 is fitted onto the surface of the cylinder 14. A circular hole 16 is formed inside the second hollow plate 15. A bolt 17 is fitted into the inner wall of the circular hole 16. A retaining ring 18 is fixedly connected to the surface of the bolt 17. The upper surface of the retaining ring 18 is fitted into the bottom of the second hollow plate 15. A threaded cylinder 19 is threadedly connected to the surface of the bolt 17. The bottom of the threaded cylinder 19 is fixedly connected to the upper surface of the connecting plate 10. A first rectangular hole is formed on the surface of the cylinder 14. 20. The inner wall of the second hollow plate 15 is provided with a second groove 21. The inner wall of the second groove 21 and the inner wall of the first rectangular hole 20 are both fitted with clamping blocks 22. The inside of the clamping block 22 is provided with a second rectangular hole 23. The inner wall of the second rectangular hole 23 is fitted with a cylinder 24. Both ends of the cylinder 24 are fixedly connected to the inner wall of the second groove 21. The upper surface of the connecting plate 10 is provided with a circular groove 25. The inner wall of the circular groove 25 is fixedly connected with a circular plate 26. The upper surface of the circular plate 26 is provided with a toothed groove 27.

[0034] The second rectangular hole 23 has an angle of 60° with the horizontal plane, the length of the second rectangular hole 23 is greater than the diameter of the cylinder 24, the circular plate 26 is located in the middle of the connecting plate 10, and the thickness of the circular plate 26 is less than the depth of the circular groove 25.

[0035] It should be noted that the retaining ring 18 prevents the bolt 17 from moving up and down within the circular hole 16. When the bolt 17 rotates, the engagement between the bolt 17 and the threaded cylinder 19 allows the bolt 17 to move up or down. The retaining ring 18 also causes the second hollow plate 15 to move along with the bolt 17. When the second hollow plate 15 moves downwards, the engagement of the first rectangular hole 20, the second rectangular hole 23, and the cylinder 24 allows the clamping block 22 to clamp the drive shaft within the circular groove 25. When the second hollow plate 15 moves upwards, the engagement of the first rectangular hole 20, the second rectangular hole 23, and the cylinder 24 allows the clamping block 22 to clamp the drive shaft within the circular groove 25. The engagement of the rectangular hole 23 and the cylinder 24 allows the clamping block 22 to loosen the drive shaft. Through the engagement of the cylinder 14, the second hollow plate 15, the circular hole 16, the bolt 17, the retaining ring 18, the threaded cylinder 19, the first rectangular hole 20, the second groove 21, the clamping block 22, the second rectangular hole 23, and the cylinder 24, the user can easily and quickly install and remove the drive shaft from the connecting plate 10 by rotating the bolt 17. At the same time, by setting the tooth groove 27 on the circular plate 26 that engages with the teeth on the end face of the drive shaft, the stability of the drive shaft during rotation is enhanced.

[0036] The working principle of this utility model is as follows: First, the drive shaft is inserted into the circular groove 25 and the end face teeth of the drive shaft are in contact with the tooth groove 27. Then, by rotating the bolt 17, the bolt 17 moves downward under the action of the threaded cylinder 19. Through the cooperation of the bolt 17 and the retaining ring 18, the second hollow plate 15 moves downward along with the bolt 17. At this time, the cylinder 24 moves downward through the downward moving second hollow plate 15. Through the cooperation of the first rectangular hole 20, the second rectangular hole 23 and the cylinder 24, the clamping block 22 clamps the drive shaft in the circular groove 25. At this time, the drive shaft is fixed on the connecting plate 10 by the clamping block 22.

[0037] Then, the connecting post 9 is inserted into the positioning cylinder 12, and the connecting plate 10 is pushed downward to press the conical surface of the fixing block 7 against the claw 4. At this time, the distance between adjacent claws 4 can be automatically increased by the conical surface of the fixing block 7, and the spring 5 is compressed. When the fixing block 7 moves to the inside of the claw 4, the claw 4 contacts the first groove 8 by the elastic force of the spring 5. At this time, the connecting post 9 can be locked on the mounting base 1 by the cooperation of the claw 4, the fixing block 7 and the first groove 8, and the fixing block 7 can rotate with the mounting base 1 by the cooperation of the claw 4 and the first groove 8.

[0038] After the drive shaft test is completed, push the connecting plate 10 downwards to press the conical surface of the fixed block 7 against the trapezoidal block 7. At this time, the distance between adjacent jaws 4 can be automatically increased through the conical surface of the fixed block 7. When the distance between adjacent jaws 4 increases to the maximum value, the slider 11 can slide directly to the inside of the jaw 4 and make the slider 11 contact the fixed block 7. When the slider 11 moves to the inside of the jaw 4, the jaw 4 is displaced from the first groove 8 on the fixed block 7 by rotating the connecting plate 10. When the connecting plate 10 is pushed upwards to push the slider 11 through the fixed block 7, the distance between adjacent jaws 4 can be automatically increased through the pressing between the conical surface of the slider 11 and the jaw 4, and the fixed block 7 can be directly moved out from the inside of the jaw 4.

[0039] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A snap-on quick-change tooling, characterized in that: Includes a mounting base (1), on which a cover plate (2) is fixedly connected. A groove (3) is provided at the bottom of the cover plate (2). A claw (4) is fitted to both the inner wall of the groove (3) and the upper surface of the mounting base (1). A spring (5) is fixedly connected to one end of the claw (4) and one end of the groove (3). A trapezoidal block (6) is fixedly connected to the other end of the claw (4). The surface of the trapezoidal block (6) fits against the conical surface of the fixing block (7). The fixing block (7) is conical. The surface of the fixed block (7) is provided with a first groove (8), the inner wall of the first groove (8) is in contact with the surface of the claw (4), the inner wall of the fixed block (7) is fixedly connected with a connecting column (9), the upper surface of the connecting column (9) is fixedly connected with a connecting plate (10), the surface of the connecting column (9) is fitted with a conical slider (11), the surface of the connecting column (9) is fitted with a positioning cylinder (12), the surface of the positioning cylinder (12) and the inner wall of the mounting base (1) are both fixedly connected with a first hollow plate (13).

2. The snap-on quick-change tooling according to claim 1, characterized in that: The axis of the connecting plate (10) coincides with the axis of the connecting column (9).

3. The snap-on quick-change tooling according to claim 1, characterized in that: A cylinder (14) is fixedly connected to the upper surface of the connecting plate (10). A second hollow plate (15) is fitted onto the surface of the cylinder (14). A circular hole (16) is opened inside the second hollow plate (15). A bolt (17) is fitted into the inner wall of the circular hole (16). A retaining ring (18) is fixedly connected to the surface of the bolt (17). The upper surface of the retaining ring (18) is fitted into the bottom of the second hollow plate (15). A threaded cylinder (19) is threaded onto the surface of the bolt (17). The bottom of the threaded cylinder (19) is connected to the connecting plate (10). The upper surface of the receiving plate (10) is fixedly connected. The surface of the cylinder (14) is provided with a first rectangular hole (20). The inner wall of the second hollow plate (15) is provided with a second groove (21). The inner wall of the second groove (21) and the inner wall of the first rectangular hole (20) are both fitted with clamping blocks (22). The inside of the clamping block (22) is provided with a second rectangular hole (23). The inner wall of the second rectangular hole (23) is fitted with a cylinder (24). Both ends of the cylinder (24) are fixedly connected to the inner wall of the second groove (21).

4. The snap-on quick-change tooling according to claim 3, characterized in that: The second rectangular hole (23) has an angle of 60° with the horizontal plane, and the length of the second rectangular hole (23) is greater than the diameter of the cylinder (24).

5. A snap-on quick-change tooling according to claim 1, characterized in that: The upper surface of the connecting plate (10) is provided with a circular groove (25), and a circular plate (26) is fixedly connected to the inner wall of the circular groove (25). The upper surface of the circular plate (26) is provided with a toothed groove (27).

6. The snap-on quick-change tooling according to claim 5, characterized in that: The circular plate (26) is located in the middle of the connecting plate (10), and the thickness of the circular plate (26) is less than the depth of the circular groove (25).

7. The snap-on quick-change tooling according to claim 1, characterized in that: The bottom diameter of the slider (11) is equal to the bottom diameter of the first groove (8).

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