Chuck type quick clamping tool

Abstract

A chuck type quick clamping tool is used in the technical field of vehicle chassis transmission shaft tests. The upper surface of the chuck type quick clamping tool base is fixedly connected with a circular box body, the inner wall of the circular box body is fixedly connected with a first cylinder, the surface of the first cylinder is fixedly connected with a first bearing, the outer ring of the first bearing is fixedly connected with a worm gear, and the front side and the rear side of the circular box body are each provided with a circular hole. According to the chuck type quick clamping tool, the base, the circular box body, the first cylinder, the first bearing, the worm, the circular hole, the cylinder, the worm, the groove, the second bearing, the fixing plate, the first strip-shaped hole, the second strip-shaped hole, the second cylinder, the clamping jaw, the circular plate, the guide groove, the connecting disc, the clamping groove and the baffle ring are matched, so that a user only needs to rotate the worm; therefore, the transmission shaft can be quickly fixed on the chuck type quick clamping tool, so that the mounting efficiency of the transmission shaft is greatly improved.

Description

Technical Field

[0001] This utility model relates to the field of vehicle chassis drive shaft testing technology, specifically a chuck-type quick-clamping tool. Background Technology

[0002] Currently, the driveshafts of special vehicles are commonly tested using a clamping method with double-sided flanges connected by several bolts. This method is quite cumbersome, especially for testing heavy-duty driveshafts. It requires transporting the driveshaft to the testing machine, aligning the holes on the testing machine flange with those on the driveshaft flange, and then connecting them with several bolts. This not only makes installation laborious for the testing personnel but also consumes a significant amount of time, severely impacting testing efficiency. Summary of the Invention

[0003] To overcome the shortcomings of the existing technology, the purpose of this invention is to provide a chuck-type quick-clamping fixture to improve the installation efficiency during transmission shaft testing and reduce the labor intensity of testing personnel.

[0004] To achieve the above-mentioned objectives, this utility model provides a chuck-type quick-clamping fixture comprising a base, a circular box fixedly connected to the upper surface of the base, a first cylinder fixedly connected to the inner wall of the circular box, a first bearing fixedly connected to the surface of the first cylinder, a worm gear fixedly connected to the outer ring of the first bearing, circular holes on both the front and rear sides of the circular box, a cylinder fixedly connected to the inner wall of the circular holes, a worm gear fitted into the inner wall of the cylinder, grooves on both the front and rear ends of the worm gear, the worm gear meshing with the worm gear, a second bearing fixedly connected to the surface of the worm gear, and fixing plates fixedly connected to the outer ring of the second bearing and the inner wall of the circular box. The upper surface of the body has a first strip-shaped hole, and the inside of the worm gear has a second strip-shaped hole. A second cylinder is fitted into the inner wall of both the first and second strip-shaped holes. A pawl is fixedly connected to the upper surface of the second cylinder. The bottom of the pawl is fitted into the upper surface of the circular box. A circular plate is fixedly connected to the upper surface of the circular box. A guide groove is formed on the surface of the circular plate. The inner wall of the guide groove is fitted into the surface of the pawl. A connecting plate is fitted into the upper surface of the circular plate. A slot is formed on the surface of the connecting plate. The inner wall of the slot is fitted into the surface of the pawl. A retaining ring is fixedly connected to the surface of the second cylinder. The upper surface of the retaining ring is fitted into the inner wall of the circular box.

[0005] The present invention is further configured such that a positioning post is fixedly connected to the bottom of the connecting plate, a positioning hole is provided inside the circular plate, and the surface of the positioning post is in contact with the inner wall of the positioning hole.

[0006] The present invention is further configured such that the number of positioning posts is four, and the four positioning posts are arranged in a circular array with the axis of the connecting disk as the center.

[0007] The present invention is further configured such that the upper surface of the connecting disk is provided with a toothed groove, and the middle part of the connecting disk is provided with a threaded hole.

[0008] The present invention is further configured such that a mounting ring is fixedly connected to the surface of the base, and a mounting hole is provided inside the mounting ring.

[0009] The present invention is further configured such that the groove is a regular hexagon, and the center of the groove coincides with the axis of the worm.

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

[0011] 1. This utility model provides a chuck-type quick-clamping fixture. Through the cooperation of a base, a circular box, a first cylinder, a first bearing, a worm gear, a circular hole, a cylinder, a worm gear, a groove, a second bearing, a fixing plate, a first strip hole, a second strip hole, a second cylinder, a jaw, a circular plate, a guide groove, a connecting plate, a slot, and a retaining ring, the user only needs to rotate the worm gear to quickly fix the drive shaft on the chuck-type quick-clamping fixture, thereby greatly improving the installation efficiency of the drive shaft. At the same time, through the cooperation of the positioning pin and the positioning hole, the user can quickly align the slot with the jaw.

[0012] 2. The chuck-type quick clamping fixture of this utility model allows the connecting disc to be directly fixed to the drive shaft through the threaded hole on the connecting disc. At the same time, after the connecting disc is fixed to the drive shaft, the stability of the drive shaft during rotation can be effectively enhanced through the cooperation of the tooth groove and the end face teeth of the drive shaft. Attached Figure Description

[0013] 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:

[0014] Figure 1 This is a front view of the structure of this utility model.

[0015] Figure 2 yes Figure 1 Sectional view at point AA.

[0016] Figure 3 yes Figure 2 Enlarged view of section B in the middle.

[0017] Figure 4 This is a top view of the structure of this utility model.

[0018] Figure 5 yes Figure 4Sectional view at point CC.

[0019] Figure 6 yes Figure 1 Front view of the medium-sized circular box.

[0020] Figure 7 yes Figure 6 Top view.

[0021] Figure 8 yes Figure 1 Top view of the worm gear.

[0022] Figure 9 yes Figure 1 Top view of the middle circular plate.

[0023] Figure 10 yes Figure 1 Front view of the connecting disk.

[0024] Figure 11 yes Figure 10 Sectional view at point DD.

[0025] Figure 12 yes Figure 1 A bottom view of the connecting disc.

[0026] The attached diagram lists the components represented by each number as follows:

[0027] 1. Base; 2. Circular box; 3. First cylinder; 4. First bearing; 5. Worm gear; 6. Circular hole; 7. Cylindrical shaft; 8. Worm; 9. Groove; 10. Second bearing; 11. Fixing plate; 12. First strip hole; 13. Second strip hole; 14. Second cylinder; 15. Claw; 16. Circular plate; 17. Guide groove; 18. Connecting disc; 19. Slot; 20. Retaining ring; 21. Positioning pin; 22. Positioning hole; 23. Gear groove; 24. Threaded hole; 25. Mounting ring; 26. Mounting hole. 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, a chuck-type quick-clamping fixture of this utility model includes a base 1, a circular box 2 fixedly connected to the upper surface of the base 1, a first cylinder 3 fixedly connected to the inner wall of the circular box 2, a first bearing 4 fixedly connected to the surface of the first cylinder 3, a worm gear 5 fixedly connected to the outer ring of the first bearing 4, circular holes 6 on both the front and rear sides of the circular box 2, a cylinder 7 fixedly connected to the inner wall of the circular holes 6, a worm 8 fitted into the inner wall of the cylinder 7, grooves 9 on both the front and rear ends of the worm 8, the worm 8 meshing with the worm gear 5, a second bearing 10 fixedly connected to the surface of the worm 8, a fixing plate 11 fixedly connected to the outer ring of the second bearing 10 and the inner wall of the circular box 2, a first strip hole 12 on the upper surface of the circular box 2, and a second strip hole 13 inside the worm gear 5. 3. A second cylinder 14 is fitted to the inner wall of the first strip hole 12 and the inner wall of the second strip hole 13. A claw 15 is fixedly connected to the upper surface of the second cylinder 14. The bottom of the claw 15 is fitted to the upper surface of the circular box 2. A circular plate 16 is fixedly connected to the upper surface of the circular box 2. A guide groove 17 is formed on the surface of the circular plate 16. The inner wall of the guide groove 17 is fitted to the surface of the claw 15. A connecting plate 18 is fitted to the upper surface of the circular plate 16. A slot 19 is formed on the surface of the connecting plate 18. The inner wall of the slot 19 is fitted to the surface of the claw 15. A retaining ring 20 is fixedly connected to the surface of the second cylinder 14. The upper surface of the retaining ring 20 is fitted to the inner wall of the circular box 2. An installation ring 25 is fixedly connected to the surface of the base 1. An installation hole 26 is formed inside the installation ring 25.

[0031] Among them, the groove 9 is a regular hexagon, and the center of the groove 9 coincides with the axis of the worm 8.

[0032] It should be noted that the worm gear 5 is connected to the first cylinder 3 via the first bearing 4, allowing the worm gear 5 to rotate freely on the first cylinder 3. The groove 9 allows the user to rotate the worm 8 using a hex wrench. When the worm 8 rotates, the worm gear 5 rotates due to the interaction between the worm 8 and the worm gear 5. When the worm 8 stops rotating, the self-locking property between the worm 8 and the worm gear 5 prevents the worm 8 from rotating. The engagement of the pawl 15 and the retaining ring 20 prevents the second cylinder 14 from being moved out of the first slot 12 and the second slot 13. The guide groove 17 further... The pawl 15 cannot rotate on the circular box 2. When the worm gear 5 rotates, the pawl 15 clamps or releases the connecting plate 18 through the cooperation of the first strip hole 12, the second strip hole 13, the second cylinder 14 and the guide groove 17. When the pawl 15 is inserted into the slot 19, the connecting plate 18 can be fixed on the circular box 2 through the cooperation of the pawl 15 and the slot 19. When the pawl 15 is separated from the slot 19, the connecting plate 18 can be directly separated from the circular box 2. After the bolt is inserted into the mounting hole 26, the base 1 can be connected to the drive shaft of the motor through the bolt.

[0033] A positioning post 21 is fixedly connected to the bottom of the connecting plate 18, and a positioning hole 22 is opened inside the circular plate 16. The surface of the positioning post 21 fits against the inner wall of the positioning hole 22.

[0034] There are four positioning posts 21, and the four positioning posts 21 are arranged in a circular array with the axis of the connecting plate 18 as the center.

[0035] It should be noted that the positioning pin 21 and the positioning hole 22 work together to enable the user to quickly align the slot 19 with the claw 15.

[0036] The upper surface of the connecting plate 18 is provided with a toothed groove 23, and the middle part of the connecting plate 18 is provided with a threaded hole 24.

[0037] It should be noted that the threaded hole 24 on the connecting plate 18 allows the connecting plate 18 to be directly fixed to the drive shaft. At the same time, after the connecting plate 18 is fixed to the drive shaft, the engagement of the tooth groove 23 and the end face teeth of the drive shaft can effectively enhance the stability of the drive shaft during rotation.

[0038] The working principle of this utility model is as follows: First, the thread on the drive shaft is screwed into the threaded hole 24, and the connecting plate 18 is fixed to the drive shaft by the thread. After the connecting plate 18 is fixed on the drive shaft, the connecting plate 18 and the drive shaft rotate synchronously through the cooperation of the tooth groove 23 and the end face teeth of the drive shaft.

[0039] Then, by rotating the worm gear 8, the worm wheel 5 rotates, and through the cooperation of the first slot 12, the second slot 13, the second cylinder 14, and the guide groove 17, the distance between the pawl 15 and the first cylinder 3 increases. When the distance between the pawl 15 and the first cylinder 3 increases to its maximum value, the rotation of the worm gear 8 is stopped. Then, the connecting plate 18 with the drive shaft is placed on the circular box 2, and the positioning pin 21 is inserted into the positioning hole 22. At this time, through the cooperation of the positioning pin 21 and the positioning hole 22, the slot 19 is aligned with the pawl 15. By rotating the worm 8, the worm wheel 5 rotates, and through the cooperation of the first strip hole 12, the second strip hole 13, the second cylinder 14 and the guide groove 17, the distance between the pawl 15 and the first cylinder 3 is reduced. When the pawl 15 is inserted into the slot 19, the rotation of the worm 8 stops. At this time, through the cooperation of the pawl 15 and the slot 19, the connecting plate 18 is fixed on the circular box 2. At the same time, through the self-locking property between the worm 8 and the worm wheel 5, the worm wheel 5 cannot rotate after the worm 8 stops, thus making it difficult for the slot 19 and the pawl 15 to loosen.

[0040] When it is necessary to disassemble the connecting plate 18, the worm gear 8 is rotated to make the worm wheel 5 rotate. Through the cooperation of the first strip hole 12, the second strip hole 13, the second cylinder 14 and the guide groove 17, the distance between the pawl 15 and the first cylinder 3 is increased. When the pawl 15 is completely separated from the groove 19, the connecting plate 18 can be directly removed from the circular box 2.

[0041] 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 chuck-type quick-clamping fixture, characterized in that: Includes a base (1), a circular box (2) is fixedly connected to the upper surface of the base (1), a first cylinder (3) is fixedly connected to the inner wall of the circular box (2), a first bearing (4) is fixedly connected to the surface of the first cylinder (3), a worm wheel (5) is fixedly connected to the outer ring of the first bearing (4), a circular hole (6) is opened on both the front and rear sides of the circular box (2), a cylinder (7) is fixedly connected to the inner wall of the circular hole (6), a worm (8) is fitted to the inner wall of the cylinder (7), a groove (9) is opened at both the front and rear ends of the worm (8), the worm (8) meshes with the worm wheel (5), a second bearing (10) is fixedly connected to the surface of the worm (8), a fixing plate (11) is fixedly connected to the outer ring of the second bearing (10) and the inner wall of the circular box (2), a first strip hole (12) is opened on the upper surface of the circular box (2), and the worm wheel (5) is fixedly connected to the inner wall of the circular box (2). The interior of the first cylindrical box (2) has a second strip-shaped hole (13). The inner walls of the first cylindrical box (12) and the second cylindrical box (13) are fitted with a second cylinder (14). The upper surface of the second cylinder (14) is fixedly connected with a claw (15). The bottom of the claw (15) is fitted with the upper surface of the circular box (2). The upper surface of the circular box (2) is fixedly connected with a circular plate (16). The surface of the circular plate (16) has a guide groove (17). The inner wall of the guide groove (17) is fitted with the surface of the claw (15). The upper surface of the circular plate (16) is fitted with a connecting plate (18). The surface of the connecting plate (18) has a slot (19). The inner wall of the slot (19) is fitted with the surface of the claw (15). The surface of the second cylindrical box (14) is fixedly connected with a retaining ring (20). The upper surface of the retaining ring (20) is fitted with the inner wall of the circular box (2).

2. The chuck-type quick-clamping fixture according to claim 1, characterized in that: The bottom of the connecting plate (18) is fixedly connected to a positioning post (21), and the inside of the circular plate (16) is provided with a positioning hole (22). The surface of the positioning post (21) is in contact with the inner wall of the positioning hole (22).

3. The chuck-type quick-clamping fixture according to claim 2, characterized in that: The number of positioning posts (21) is four, and the four positioning posts (21) are arranged in a circular array with the axis of the connecting plate (18) as the center.

4. The chuck-type quick-clamping fixture according to claim 1, characterized in that: The upper surface of the connecting plate (18) is provided with a toothed groove (23), and the middle part of the connecting plate (18) is provided with a threaded hole (24).

5. A chuck-type quick-clamping fixture according to claim 1, characterized in that: The base (1) is fixedly connected to a mounting ring (25), and the mounting ring (25) has a mounting hole (26) inside.

6. The chuck-type quick-clamping fixture according to claim 1, characterized in that: The groove (9) is a regular hexagon, and the center of the groove (9) coincides with the axis of the worm (8).

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