A quick clamping mechanism for joint pair test
By designing a quick-clamping mechanism, using V-blocks, clamping blocks, and pressure blocks to fix the joints in all directions, the problem of cumbersome operation of traditional tooling is solved, and efficient and stable joint dragging tests are achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGSU YIYOU ROBOT TECH CO LTD
- Filing Date
- 2025-06-16
- Publication Date
- 2026-05-29
Smart Images
Figure CN224295669U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of joint performance testing technology, specifically a quick clamping mechanism for joint drag testing. Background Technology
[0002] In the field of joint performance testing, the drag test fixture is a commonly used testing device. It achieves synchronous rotation of two axes by mechanically coupling the joint under test with another joint, thereby evaluating key performance indicators such as torque, speed, and accuracy of the joint.
[0003] However, traditional towing test fixtures typically use screws to install the joints onto the fixture base when fixing them. This method requires tightening or loosening multiple screws with tools each time the joint is installed or removed, which is cumbersome and time-consuming. This significantly reduces testing efficiency, especially in test scenarios where the joint being tested is frequently changed. In addition, existing towing fixtures are usually compact devices with limited internal space, and the screws are often tightened around the mounting flange of the joint. Due to the limited space, it is difficult for operators to use wrenches or power tools flexibly.
[0004] Therefore, it is essential to design a quick-clamping mechanism for joint drag testing that is easy to operate and has ample assembly / disassembly space. Utility Model Content
[0005] The purpose of this invention is to provide a quick clamping mechanism for joint drag testing, so as to solve the problems mentioned in the background art.
[0006] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a quick clamping mechanism for joint dragging test, including a base plate, pushing components are installed on both sides of the base plate, positioning components are installed on the pushing components, a rotary connecting component is installed between the positioning components on both sides of the base plate, and clamping components are installed on both sides of the pushing components.
[0007] The clamping assembly includes a clamping base plate and a mounting plate. The mounting plate is fixedly connected to the clamping base plate. The mounting plate has clamping holes, and a V-shaped block is provided at the bottom of the clamping holes. Clamping blocks are provided on both sides of the clamping holes on the mounting plate. A first handle bolt is connected between the outer side of the clamping block and the mounting plate. Tightening the first handle bolt drives the clamping block to move towards the center of the clamping hole. A pressure plate is detachably connected to the top of the mounting plate. A pressure block is embedded in the pressure plate above the clamping hole. A second handle bolt is connected between the pressure plate and the pressure block. The pressure plate has threads corresponding to the second handle bolt. Tightening the second handle bolt drives the pressure block to move towards the center of the clamping hole. The V-shaped block, the clamping block, and the pressure block cooperate with each other to fix the bottom, sides, and top of the joint.
[0008] According to the above technical solution, the pushing component includes a first elbow clamp and a first support plate. A plurality of first sliding blocks are installed on both sides of the bottom of the first support plate. A first guide rail is provided on the bottom plate below the first sliding blocks. First limiting blocks are provided at both ends of the first guide rail. The first limiting blocks are installed on the bottom plate. The first sliding blocks are slidably connected to the first guide rail. A first moving arm is provided on the first elbow clamp. The end of the first moving arm away from the first elbow clamp is connected to the first support plate. By pushing and pulling the first elbow clamp to move the first moving arm, the first support plate moves back and forth along the first guide rail.
[0009] According to the above technical solution, the positioning component includes a second elbow clamp and a second support plate. A vertical plate is mounted on the second support plate. The second elbow clamp is mounted on the top of the vertical plate. A second movable arm is provided on the second elbow clamp. A gripper for positioning the tail of the joint is fixedly connected to the end of the second movable arm away from the second elbow clamp. A second sliding block is fixedly connected to the bottom of the gripper. A second guide rail corresponding to and matching the second sliding block is provided on the second support plate. The second sliding block is slidably connected to the second guide rail. Second limiting blocks are provided on both sides of the second guide rail. The second limiting blocks are mounted on the second support plate. The end of the first movable arm near the first support plate is fixedly connected to the second limiting block near the side of the vertical plate.
[0010] According to the above technical solution, the rotary connection assembly includes a connecting seat, bearings are provided on both sides inside the connecting seat, a first transmission shaft is provided between the two bearings, couplings are connected to both ends of the first transmission shaft, a second transmission shaft is connected to the end of the couplings on both sides away from the first transmission shaft, and a floating end cap is connected to the end of the second transmission shafts on both sides away from the couplings. The pushing assembly can push the joint head into the floating end cap and lock it.
[0011] According to the above technical solution, an adjusting bolt and a locking nut for adjusting the height of the V-block are connected between the V-block and the clamping base plate. The adjusting bolt is screwed into the clamping base plate and presses against the V-block. After adjustment, it is fixed by the locking nut. A first mounting seat and a second mounting seat are provided on both sides of the pressure plate. A parallel pin is connected between the first mounting seat and the mounting plate and the parallel pin passes through the pressure plate. A ball-head handle is connected between the second mounting seat and the mounting plate and the ball-head handle passes through the pressure plate. A locking pin is provided on one side of the ball-head handle of the second mounting seat.
[0012] According to the above technical solution, the base plate has fixed seats on both sides below the first elbow clamp, and the first elbow clamp is installed on the top of the fixed seat.
[0013] Compared with the prior art, the beneficial effects achieved by this utility model are:
[0014] (1) By setting up a clamping component, the V-shaped block, clamping block and pressure block are fixed from the bottom, sides and top of the joint respectively to form an all-round clamping structure, which ensures the stability of the joint during the test and avoids the test results from being affected by loosening. Moreover, the position of the clamping block and pressure block can be adjusted by using the first handle bolt and the second handle bolt. No additional complicated tools are needed. The operation space is large and simple and quick, which effectively improves the efficiency of joint installation and disassembly. It is especially suitable for test scenarios where the tested joint needs to be frequently replaced.
[0015] (2) By setting up symmetrical double clamping stations, it is possible to perform drag tests on two joints at the same time. The two joints are in the same equipment environment, temperature, humidity and other environmental factors, which reduces the interference of environmental factors on the test results. The results can be compared in real time. If the test data of the two joints are too different, the joint quality problem can be investigated in time, making the test results more comparable and reliable. Attached Figure Description
[0016] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:
[0017] Figure 1 This is a schematic diagram of the structural composition of this utility model;
[0018] Figure 2 This is a schematic diagram of the clamping component structure of this utility model;
[0019] Figure 3 This is an isometric view of the clamping assembly of this utility model;
[0020] Figure 4This is a schematic diagram of the pushing component structure of this utility model;
[0021] Figure 5 This is a schematic diagram of the positioning component structure of this utility model;
[0022] Figure 6 This is a schematic diagram of the rotating connection component structure of this utility model;
[0023] In the diagram: 10. Base plate; 11. Fixed seat; 12. First limiting block; 13. Second limiting block; 20. Pushing assembly; 21. First elbow clamp; 22. First support plate; 23. First sliding block; 24. First guide rail; 25. First moving arm; 30. Positioning assembly; 31. Second elbow clamp; 32. Second support plate; 33. Vertical plate; 34. Second moving arm; 35. Gripping hand; 36. Second sliding block; 37. Second guide rail; 40. Rotary connecting assembly; 41. Connecting seat; 4 2. Bearing; 43. First drive shaft; 44. Coupling; 45. Second drive shaft; 46. Floating end cap; 50. Clamping assembly; 51. Clamping base plate; 52. Mounting plate; 53. Clamping hole; 54. V-block; 541. Adjusting bolt; 55. Clamping block; 56. First handle bolt; 57. Pressure plate; 571. First mounting base; 572. Second mounting base; 573. Parallel pin; 574. Ball head handle; 575. Locking pin; 58. Pressure block; 59. Second handle bolt. Detailed Implementation
[0024] To enable those skilled in the art to better understand the present invention, the solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.
[0025] This utility model provides a technical solution: a quick clamping mechanism for joint dragging test, including a base plate 10, pushing components 20 installed on both sides of the base plate 10, positioning components 30 installed on the pushing components 20, a rotary connecting component 40 installed between the two positioning components 30 on the base plate 10, and clamping components 50 installed on both sides of the pushing components 20.
[0026] The clamping assembly 50 includes a clamping base plate 51 and a mounting plate 52. The mounting plate 52 is fixedly connected to the clamping base plate 51. The mounting plate 52 is provided with a clamping hole 53. A V-block 54 is provided at the bottom of the clamping hole 53. The mounting plate 52 is provided with clamping blocks 55 on both sides of the clamping hole 53. A first handle bolt 56 is connected between the outer side of the clamping block 55 and the mounting plate 52. By tightening the first handle bolt 56, the clamping block 55 is driven to move towards the center of the clamping hole 53. A pressure plate 57 is detachably connected to the top of the mounting plate 52. A pressure block 58 is embedded in the pressure plate 57 above the clamping hole 53. A second handle bolt 59 is connected between the pressure plate 57 and the pressure block 58. The pressure plate 57 is provided with a thread corresponding to the second handle bolt 59. By tightening the second handle bolt 59, the pressure block 58 is driven to move towards the center of the clamping hole 53. The V-block 54, the clamping block 55 and the pressure block 58 cooperate with each other to fix the bottom, sides and top of the joint.
[0027] Furthermore, the pushing component 20 includes a first elbow clamp 21 and a first support plate 22. Several first sliding blocks 23 are installed on both sides of the bottom of the first support plate 22. A first guide rail 24 is provided below the first sliding blocks 23 on the base plate 10. First limiting blocks 12 are provided at both ends of the first guide rail 24. The first limiting blocks 12 are installed on the base plate 10. The first sliding blocks 23 are slidably connected to the first guide rail 24. A first moving arm 25 is provided on the first elbow clamp 21. The end of the first moving arm 25 away from the first elbow clamp 21 is connected to the first support plate 22. By pushing and pulling the first elbow clamp 21 to move the first moving arm 25, the first support plate 22 moves back and forth along the first guide rail 24.
[0028] With this technical solution, the operator only needs to push and pull the first elbow clamp 21 to drive the first support plate 22 to move axially along the first guide rail 24 via the first moving arm 25, thereby realizing flexible and convenient adjustment of the joint position within the clamping assembly 50. When the first support plate 22 moves to the limit position, the first limit block 12 can prevent it from moving further, preventing the first sliding block 23 from disengaging from the first guide rail 24 and avoiding damage to the mechanism due to component misalignment.
[0029] Furthermore, the positioning component 30 includes a second elbow clamp 31 and a second support plate 32. A vertical plate 33 is mounted on the second support plate 32. The second elbow clamp 31 is mounted on the top of the vertical plate 33. A second movable arm 34 is provided on the second elbow clamp 31. A gripper 35 for positioning the tail of the joint is fixedly connected to the end of the second movable arm 34 away from the second elbow clamp 31. A second sliding block 36 is fixedly connected to the bottom of the gripper 35. A second guide rail 37 corresponding to and matching the second sliding block 36 is provided on the second support plate 32. The second sliding block 36 is slidably connected to the second guide rail 37. Second limiting blocks 13 are provided on both sides of the second guide rail 37. The second limiting blocks 13 are mounted on the second support plate 32. The end of the first movable arm 25 near the first support plate 22 is fixedly connected to the second limiting block 13 near the side of the vertical plate 33.
[0030] With this technical solution, the operator can easily push or pull the second moving arm 34 with the help of the second elbow clamp 31, thereby driving the second sliding block 36 to move smoothly along the second guide rail 37, and then driving the clamping hand 35 to move to the end of the joint, so as to achieve precise positioning and stable clamping of the end of the joint. The second limiting blocks 13 on both sides of the second guide rail 37 can effectively limit the sliding range of the second sliding block 36 and prevent the clamping hand 35 from exceeding the predetermined position during the movement.
[0031] Furthermore, the rotary connection assembly 40 includes a connecting seat 41, bearings 42 are provided on both sides inside the connecting seat 41, a first drive shaft 43 is provided between the two bearings 42, couplings 44 are connected to both ends of the first drive shaft 43, a second drive shaft 45 is connected to the end of the two couplings 44 away from the first drive shaft 43, and a floating end cap 46 is connected to the end of the two second drive shafts 45 away from the couplings 44. The pushing assembly 20 can push the joint head into the floating end cap 46 and lock it.
[0032] Through this technical solution, the bearing 42 in the connecting seat 41 provides stable and low-friction support for the first drive shaft 43, ensuring that the first drive shaft 43 can rotate smoothly, push the fixed joint head into the floating end cover 46 of the rotating connection assembly 40 and lock it, thereby mechanically coupling one joint to another joint through the coupling 44, so that the first drive shaft 43 and the second drive shaft 45 rotate synchronously, and then test the various performance indicators of the joint.
[0033] Furthermore, an adjusting bolt 541 and a locking nut for adjusting the height of the V-block 54 are connected between the V-block 54 and the clamping base plate 51. The adjusting bolt 541 is screwed into the clamping base plate 51 through the thread and presses against the V-block 54. After adjustment, it is fixed by the locking nut. A first mounting seat 571 and a second mounting seat 572 are provided on both sides of the pressure plate 57. A parallel pin 573 is connected between the first mounting seat 571 and the mounting plate 52 and passes through the pressure plate 57. A ball head handle 574 is connected between the second mounting seat 572 and the mounting plate 52 and passes through the pressure plate 57. A locking pin 575 is provided on one side of the ball head handle 574 in the second mounting seat 572.
[0034] With this technical solution, the height of the V-block 54 can be changed by tightening or loosening the adjusting bolt 541, which can fit joints of different sizes. After adjustment, the locking nut will securely lock the height of the V-block 54, enhancing the versatility of the mechanism.
[0035] Furthermore, the base plate 10 has fixed seats 11 fixedly connected to both sides below the first elbow clamp 21, and the first elbow clamp 21 is installed on the top of the fixed seat 11;
[0036] Through this technical solution, the fixed base 11 provides a solid and reliable mounting foundation for the first elbow clamp 21, ensuring that the first elbow clamp 21 will not shift or shake during frequent pushing and pulling, thus improving the stability of the entire quick clamping mechanism during long-term use.
[0037] Working principle: First, place the joint onto the V-block 54 of the clamping assembly 50. Since the V-block 54 is connected to the clamping base plate 51 by adjusting bolts 541 and locking nuts, the height of the V-block 54 can be adjusted and fixed according to the joint size. Next, tighten the first handle bolts 56 on both sides of the clamping hole 53 to drive the clamping block 55 to move towards the center of the clamping hole 53, clamping both sides of the joint. Then, cover with the pressure plate 57 and perform initial positioning using parallel pins 573 and ball-head handles 574. Then, lock the pressure plate 57 with locking pins 575. After that, tighten the second handle bolts 59 between the pressure plate 57 and the pressure block 58 to adjust the downward pressure height of the pressure block 58, thereby achieving the clamping of the joint top. After the joint is fixed, the second elbow clamp 31 of the positioning component 30 is operated, and the second sliding block 36 is driven to move axially along the second guide rail 37 through the second moving arm 34 to position and fix the tail of the joint. Finally, the first elbow clamp 21 of the pushing component 20 is operated, and the first support plate 22 is driven to move along the first guide rail 24 through the first moving arm 25 to push the fixed joint head into the floating end cover 46 of the rotary connection component 40 and lock it, thereby mechanically coupling one joint to another through the coupling 44, so that the first drive shaft 43 and the second drive shaft 45 rotate synchronously, and then test the various performance indicators of the joint.
[0038] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation or specific orientation structure and operation, and therefore should not be construed as a limitation of this utility model; the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In addition, unless otherwise explicitly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.
[0039] In the description of this utility model, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this utility model. In this utility model, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. Moreover, those skilled in the art can combine different embodiments or examples and features of different embodiments or examples described in this utility model without contradiction.
[0040] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A quick clamping mechanism for joint dragging test, comprising a base plate (10), pushing components (20) mounted on both sides of the base plate (10), positioning components (30) mounted on the pushing components (20), a rotary connecting component (40) mounted between the positioning components (30) on both sides of the base plate (10), and clamping components (50) mounted on both sides of the pushing components (20). Its features are: The clamping assembly (50) includes a clamping base plate (51) and a mounting plate (52). The mounting plate (52) is fixedly connected to the clamping base plate (51). The mounting plate (52) is provided with a clamping hole (53). A V-shaped block (54) is provided at the bottom of the clamping hole (53). The mounting plate (52) is provided with clamping blocks (55) on both sides of the clamping hole (53). A first handle bolt (56) is connected between the outer side of the clamping block (55) and the mounting plate (52). By tightening the first handle bolt (56), the clamping block (55) is driven to move towards the center of the clamping hole (53). The mounting plate (52) is detachably connected to a pressure plate (57) on its top. The pressure plate (57) has a pressure block (58) embedded above the clamping hole (53). A second handle bolt (59) is connected between the pressure plate (57) and the pressure block (58). The pressure plate (57) has a thread corresponding to the second handle bolt (59). By tightening the second handle bolt (59), the pressure block (58) is driven to move toward the center of the clamping hole (53). The V-shaped block (54), the clamping block (55) and the pressure block (58) cooperate with each other to fix the bottom, sides and top of the joint.
2. The quick-clamping mechanism for joint dragging test according to claim 1, characterized in that: The pushing component (20) includes a first elbow clamp (21) and a first support plate (22). Several first sliding blocks (23) are installed on both sides of the bottom of the first support plate (22). The base plate (10) is provided with a first guide rail (24) below the first sliding block (23). First limiting blocks (12) are provided at both ends of the first guide rail (24). The first limiting blocks (12) are installed on the base plate (10). The first sliding block (23) is slidably connected to the first guide rail (24). A first moving arm (25) is provided on the first elbow clamp (21). The end of the first moving arm (25) away from the first elbow clamp (21) is connected to the first support plate (22). By pushing and pulling the first elbow clamp (21) to move the first moving arm (25), the first support plate (22) moves back and forth along the first guide rail (24).
3. A quick-clamping mechanism for joint dragging test according to claim 2, characterized in that: The positioning component (30) includes a second elbow clamp (31) and a second support plate (32). A vertical plate (33) is mounted on the second support plate (32). The second elbow clamp (31) is mounted on the top of the vertical plate (33). A second movable arm (34) is provided on the second elbow clamp (31). A clamping hand (35) for positioning the tail of the joint is fixedly connected to the end of the second movable arm (34) away from the second elbow clamp (31). A second sliding block (36) is fixedly connected to the bottom of the clamping hand (35). A second guide rail (37) corresponding to and matching the second sliding block (36) is provided on the second support plate (32). The second sliding block (36) is slidably connected to the second guide rail (37). A second limiting block (13) is provided on both sides of the second guide rail (37). The second limiting block (13) is mounted on the second support plate (32). The end of the first movable arm (25) near the first support plate (22) is fixedly connected to the second limiting block (13) near the side of the vertical plate (33).
4. A quick-clamping mechanism for joint dragging test according to claim 1, characterized in that: The rotary connection assembly (40) includes a connecting seat (41), bearings (42) are provided on both sides inside the connecting seat (41), a first drive shaft (43) is provided between the two bearings (42), a coupling (44) is connected to both ends of the first drive shaft (43), a second drive shaft (45) is connected to one end of the coupling (44) away from the first drive shaft (43), and a floating end cap (46) is connected to one end of the second drive shaft (45) away from the coupling (44). The pushing assembly (20) can push the joint head into the floating end cap (46) and lock it.
5. A quick-clamping mechanism for joint dragging test according to claim 1, characterized in that: The V-block (54) and the clamping base plate (51) are connected by an adjusting bolt (541) and a locking nut for adjusting the height of the V-block (54). The adjusting bolt (541) is screwed into the clamping base plate (51) by a thread and presses against the V-block (54). After adjustment, it is fixed by the locking nut. The pressure plate (57) is provided with a first mounting seat (571) and a second mounting seat (572) on both sides. The first mounting seat (571) is connected to the mounting plate (52) by a parallel pin (573) and the parallel pin (573) passes through the pressure plate (57). The second mounting seat (572) is connected to the mounting plate (52) by a ball head handle (574) and the ball head handle (574) passes through the pressure plate (57). The second mounting seat (572) is provided with a locking pin (575) on one side of the ball head handle (574).
6. A quick-clamping mechanism for joint dragging test according to claim 2, characterized in that: The base plate (10) has fixed seats (11) on both sides below the first elbow clamp (21), and the first elbow clamp (21) is installed on the top of the fixed seat (11).