Potentiometer board testing device

Abstract

The utility model discloses a potentiometer board testing device which comprises a base, the base is provided with a testing device, the testing device comprises a rotating table, a testing table, a cylinder, a piston rod, a power box and a mounting table, the power box is mounted on one side of the base, the top end of the piston rod is connected with the cylinder, the bottom end of the piston rod is connected with the mounting table, and the testing table is mounted on the rotating table. One side of the mounting table is provided with a clamping mechanism, one side of the power box is provided with a wire clamping device, the wire clamping device comprises a wire bunching strip, a wire bunching block, a spiral groove, a top sleeve, a guide rail, a guide groove, a sliding groove, a sliding block, a wire bunching sleeve, a wire inlet groove, a rotating sleeve and a limiting ball, the wire bunching strip is arranged on one side of the wire bunching block, the wire bunching block is connected with the sliding block, and the spiral groove is formed in the inner side of the wire bunching sleeve; the limiting ball is installed on the outer side of the top sleeve, the top sleeve is installed on the inner side of the rotating sleeve, the guide rail is matched with the guide groove, the sliding block is installed in the sliding groove, and the wire inlet groove is formed in the side wall of the wire bunching sleeve. According to the utility model, the test efficiency is improved, the connection stability is ensured, and the maintenance operation is simplified.

Description

Technical Field

[0001] The utility model relates to the technical field of potentiometer board testing, and more specifically, to a potentiometer board testing device. Background Art

[0002] In the field of electronic manufacturing and quality inspection, the test device of the potentiometer board is one of the key tools to ensure that the performance and reliability of the potentiometer board meet the manufacturing standards. The existing technology and devices face a series of challenges in terms of operating efficiency, testing capabilities and maintenance. These challenges limit production efficiency and test accuracy, and have a negative impact on the optimization and improvement of the entire manufacturing process.

[0003] First of all, many existing potentiometer board test devices are usually simple in design, single in function, and are mainly designed for a single test station, which means that at a point in time, the test device can only detect a single potentiometer board. For large-scale electronic manufacturing companies, this single-station testing method greatly reduces the test throughput and extends the product testing cycle, which in turn affects production efficiency and delivery speed. In addition, single-station testing devices cannot meet the testing needs of diversified products, limiting their application scope and flexibility.

[0004] Secondly, existing test devices generally rely on cable connections for power connection and control operation. Although this method is feasible to a certain extent, the commonly used interface plug-in method has many shortcomings. The instability of cable plug-in is a common problem. The plug can easily loosen or fall off due to vibration or improper operation, resulting in interruption of the test process or inaccurate test results, reducing the service life and reliability of the test device.

[0005] Furthermore, for the mounting table equipped with an electric tester, the installation and disassembly operations in the prior art are usually cumbersome, which not only increases the workload of the operator, but also affects the flexibility and maintenance efficiency of the test device. Especially when it is necessary to frequently replace the electric tester or adjust the test configuration to adapt to different potentiometer boards, the cumbersome installation process greatly prolongs the preparation time, slows down the test process, and increases production costs. Utility Model Content

[0006] 1. Technical issues to be resolved

[0007] In view of the problems existing in the prior art, the utility model provides a potentiometer board testing device to solve the technical problems mentioned in the background technology.

[0008] (II) Technical solution

[0009] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a potentiometer plate test device, comprising a base, a test device is installed on the base, the test device comprises a rotating table, a test table, a cylinder, a piston rod, a power box and a mounting table, the power box is installed on one side of the base, the rotating table can be movably installed on the base, the cylinder is installed on the top of the base, the top of the piston rod is connected to the cylinder output end, the bottom of the piston rod is connected to the mounting table, the test table can be movably installed on the rotating table, a clamping mechanism is provided on one side of the mounting table, a wire clamping device is installed on one side of the power box, and the wire clamping device comprises a wire harness, a wire harness block, a spiral groove, and a top sleeve. , guide rails, guide grooves, sliding grooves, sliding blocks, cable sleeves, cable inlet grooves, rotating sleeves and limiting balls, the rotating sleeves are movably mounted on one side of the power box, the cable wires are arranged on one side of the cable block, one end of the cable block is connected to the sliding block, the spiral groove is arranged on the inner side of the cable sleeve, the limiting ball is arranged on the outer side of the top sleeve, and the limiting ball is slidably installed in the spiral groove, the top sleeve is movably mounted on the inner side of the rotating sleeve, the guide rails are arranged on the inner side of the rotating sleeve, the guide grooves are arranged on the outer side of the top sleeve, and the guide rails are adapted to the guide grooves, the sliding grooves are arranged in the cable sleeves, the sliding block is slidably installed in the sliding grooves, the cable sleeves are movably mounted on one side of the rotating sleeve, and the cable inlet grooves are arranged on the side wall of the cable sleeve.

[0010] The utility model is further configured that a motor is arranged inside the base, a transmission wheel is arranged at the output end of the motor and the bottom end of the rotating platform, and a transmission belt is arranged at the outer side of the transmission wheel.

[0011] The utility model is further configured that a push spring is provided on the inner side of the test bench, and the push spring is installed on the rotating table.

[0012] The utility model is further configured as follows: a slide rail is provided on the base, a slide table is provided on the slide rail, the slide table is slidably mounted on one side of the slide rail, one side of the mounting table is connected to the slide table, and the configuration of the slide rail and the slide table ensures stable movement of the mounting table.

[0013] The utility model is further configured that a second spring is provided inside the cable harness sleeve, and a bottom end of the second spring is connected to a top end of the cable harness block.

[0014] The utility model is further configured as follows: the clamping mechanism includes a clamping plate, a limiting sleeve, an installation groove, a movable rod, a receiving groove, a clamping block, a clamping slot, a giving groove, a guide plate and a guide groove; the clamping plate is fixedly connected to one end of the limiting sleeve; the limiting sleeve is detachably installed in the installation groove; the installation groove is arranged on the slide; the movable rod is movably installed in the limiting sleeve; the receiving groove is arranged on the side wall of the movable rod; one end of the clamping block is clamped in the clamping slot; the clamping slot is arranged in the installation groove; the giving groove is arranged on the side wall of the giving groove; the guide groove is arranged on the side wall of the giving groove; the guide plates are arranged on both sides of the clamping block; and the guide plates are slidably installed in the guide grooves; and the setting of the clamping mechanism realizes the rapid disassembly and assembly of the mounting platform.

[0015] The utility model is further configured that a first spring is sleeved on the outer side of the movable rod, and the first spring can be movably installed in the limiting sleeve. The configuration of the first spring makes the use of the clamping mechanism more stable.

[0016] The utility model is further configured that a handle is provided on one side of the card plate, and the handle is fixedly connected to the one side of the card plate. The setting of the handle facilitates the use of the limiting sleeve.

[0017] (III) Beneficial effects

[0018] Compared with the prior art, the utility model provides a potentiometer board testing device having the following

[0019] Beneficial effects:

[0020] 1. The test device realizes the ability of multi-station testing through the comprehensive application of components such as the rotary table, test table and cylinder. This design allows multiple potentiometer boards to be tested in sequence after a single setting, which significantly improves the test throughput and efficiency and shortens the product test cycle, so that it can meet the needs of large-scale production. The setting of the push spring also provides a buffer distance to prevent damage to the potentiometer board.

[0021] 2. The cable clamping device solves the problem of cable connection stability through the ingenious design of components such as cable harness wires, cable harness blocks and spiral grooves. The device can ensure that the cables are stably connected during the test, avoiding test interruptions and inaccurate results caused by loose or falling cables. In addition, the design of the cable clamping device also simplifies the cable installation and removal process, and improves the service life and reliability of the test device.

[0022] 3. The card connection mechanism realizes the function of quick disassembly and assembly of the mounting table and the test pen through the innovative combination of components such as the card plate, movable rod and card block. This design enables the operator to operate quickly and easily when the test pen needs to be maintained or replaced, which greatly reduces the preparation time and improves the efficiency of the test process. At the same time, the introduction of the card connection mechanism also improves the maintenance convenience of the test device and reduces the production cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall structure of a potentiometer board testing device in the utility model;

[0024] Figure 2 for Figure 1 A schematic diagram of the local enlarged structure at point A in the middle;

[0025] Figure 3 It is a schematic diagram of the overall structure of the second viewing angle of the utility model;

[0026] Figure 4 It is a cross-sectional structural diagram of the clamping mechanism part of the utility model;

[0027] Figure 5 It is a cross-sectional structural diagram of the wire clamping device part of the utility model;

[0028] Figure 6 It is a structural schematic diagram of the top sleeve part in the utility model.

[0029] In the figure: 1, base; 2, rotating table; 3, test table; 4, cylinder; 5, piston rod; 6, power box; 7, mounting table; 8, harness wire; 9, harness block; 10, spiral groove; 11, top sleeve; 12, guide rail; 13, guide groove; 14, sliding groove; 15, sliding block; 16, harness sleeve; 17, wire feed groove; 18, rotating sleeve; 19, limit ball; 20, motor; 21, transmission wheel; 22, transmission belt; 23, push spring; 24, slide rail; 25, slide table; 26, second spring; 27, clamping plate; 28, limit sleeve; 29, mounting groove; 30, movable rod; 31, accommodating groove; 32, clamping block; 33, clamping groove; 34, clearance groove; 35, guide plate; 36, guide groove; 37, first spring; 38, handle. DETAILED DESCRIPTION

[0030] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present utility model will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0031] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meanings as commonly understood by ordinary technicians in the technical field to which this application belongs.

[0032] In the present invention, unless otherwise specified, directions such as "up" and "down" are usually used in reference to the directions shown in the drawings, or in reference to the vertical, perpendicular or gravity direction; similarly, for ease of understanding and description, "left" and "right" are usually used in reference to the left and right shown in the drawings; "inside" and "outside" refer to the inside and outside relative to the outline of each component itself, but the above-mentioned directions are not used to limit the present invention.

[0033] See also Figure 1-6 A potentiometer plate test device comprises a base 1, a test device is installed on the base 1, the test device comprises a rotating table 2, a test table 3, a cylinder 4, a piston rod 5, a power box 6 and a mounting table 7, the power box 6 is installed on one side of the base 1, the rotating table 2 can be movably installed on the base 1, the cylinder 4 is installed on the top of the base 1, the top of the piston rod 5 is connected to the output end of the cylinder 4, the bottom of the piston rod 5 is connected to the mounting table 7, the test table 3 can be movably installed on the rotating table 2, a clamping mechanism is provided on one side of the mounting table 7, a wire clamping device is installed on one side of the power box 6, the wire clamping device comprises a wire harness 8, a wire harness block 9, a spiral groove 10, a top sleeve 11, a guide rail 12, a guide groove 13, a sliding groove 14, a sliding block 15, a wire harness sleeve 16, an inlet A wire groove 17, a rotating sleeve 18 and a limiting ball 19, the rotating sleeve 18 is movably installed on one side of the power box 6, the harness wire 8 is arranged on one side of the harness block 9, one end of the harness block 9 is connected to the sliding block 15, the spiral groove 10 is opened on the inner side of the harness sleeve 16, the limiting ball 19 is installed on the outer side of the top sleeve 11, and the limiting ball 19 is slidably installed in the spiral groove 10, the top sleeve 11 is movably installed on the inner side of the rotating sleeve 18, the guide rail 12 is arranged on the inner side of the rotating sleeve 18, the guide groove 13 is opened on the outer side of the top sleeve 11, and the guide rail 12 is adapted to the guide groove 13, the sliding groove 14 is opened in the harness sleeve 16, the sliding block 15 is slidably installed in the sliding groove 14, the harness sleeve 16 is movably installed on one side of the rotating sleeve 18, and the wire inlet groove 17 is opened on the side wall of the harness sleeve 16.

[0034] A motor 20 is arranged in the base 1 , and a transmission wheel 21 is arranged at the output end of the motor 20 and the bottom end of the rotating platform 2 , and a transmission belt 22 is sleeved on the outer side of the transmission wheel 21 .

[0035] A push spring 23 is provided inside the test table 3 , and the push spring 23 is installed on the rotating table 2 .

[0036] A slide rail 24 is provided on the base 1 , and a slide platform 25 is provided on the slide rail 24 . The slide platform 25 is slidably mounted on one side of the slide rail 24 , and one side of the mounting platform 7 is connected to the slide platform 25 .

[0037] A second spring 26 is disposed inside the cable harness sleeve 16 , and the bottom end of the second spring 26 is connected to the top end of the cable harness block 9 .

[0038] In this embodiment, when the device is needed to test the potentiometer board, the cable needs to be connected to the power box 6 first, and the cable is first allowed to enter the cable harness 16 from the cable inlet groove 17, and then the cable connector is plugged into the interface of the power box 6, and then the rotating sleeve 18 is rotated and the cable harness 16 is fixed so that the cable harness 16 does not rotate. Due to the mutual limitation of the guide rail 12 and the guide groove 13, the rotating sleeve 18 will drive the top sleeve 11 to rotate. Due to the special structural design of the spiral groove 10, the limiting ball 19 will spirally rise in the spiral groove 10, and then the top sleeve 11 will follow As the limiting ball 19 spirally rises, the guide groove 13 provided on the outer side of the top sleeve 11 will move along the slide rail 24, and then the top sleeve 11 will lift the cable block 9 to move, and the cable block 9 will drive the sliding block 15 to slide in the sliding groove 14. At the same time, the top sleeve 11 will compress the second spring 26 connected to the top. Due to the special structural design of the sliding groove 14 and the sliding block 15, the sliding block 15 will drive the cable block 9 to move inward when sliding in the sliding groove 14, thereby reducing the gap between the multiple cable blocks 9. When the multiple cable blocks 9 stably clamp the cables, they stop rotating. Turn the sleeve 18, and then place the potentiometer boards that need to be tested on the test bench 3 one by one, and then make one of the test benches 3 correspond to the position of the mounting bench 7, and then open the cylinder 4 installed on the top of the base 1, and the cylinder 4 drives the mounting bench 7 equipped with the test pencil to move down through the piston rod 5 connected to the output end, and at the same time, the mounting bench 7 will drive the slide 25 to slide on the slide rail 24. The setting of the slide rail 24 and the slide 25 ensures the stable movement of the mounting bench 7 and provides a safe limit distance for the movement of the mounting bench 7. The mounting bench 7 continues to move downward and cooperates with the test bench 3 to clamp the potentiometer board The push spring 23 arranged on the inner side of the mounting platform 7 can play a buffering role to prevent the potentiometer board from being damaged when the mounting platform 7 is pressed down. After the test is completed, the mounting platform 7 is raised, and then the motor 20 installed in the base 1 is turned on. The motor 20 drives the transmission belt 22 to move through the transmission wheel 21 connected to the output end, and then drives the transmission wheel 21 connected to the outer side of the rotating platform 2 to rotate, thereby driving the rotating platform 2 to rotate. When the mounting platform 7 and the other test platform 3 are in corresponding positions, the motor 20 is turned off, and then the above process is referred to for multiple operations, thereby realizing multi-station testing of the potentiometer board.

[0039] See also Figure 1-4, as an implementation method of a potentiometer board testing device for a clamping mechanism: the clamping mechanism includes a clamping plate 27, a limiting sleeve 28, a mounting groove 29, a movable rod 30, a receiving groove 31, a clamping block 32, a clamping groove 33, a giving groove 34, a guide plate 35 and a guide groove 36, the clamping plate 27 is fixedly connected to one end of the limiting sleeve 28, the limiting sleeve 28 is detachably installed in the mounting groove 29, the mounting groove 29 is arranged on the slide 25, the movable rod 30 is movably installed in the limiting sleeve 28, the receiving groove 31 is arranged on the side wall of the movable rod 30, one end of the clamping block 32 is clamped into the clamping groove 33, the clamping groove 33 is arranged in the mounting groove 29, the giving groove 34 is arranged on the side wall of the giving groove 34, the guide groove 36 is arranged on the side wall of the giving groove 34, the guide plates 35 are arranged on both sides of the clamping block 32, and the guide plates 35 are slidably installed in the guide groove 36.

[0040] A first spring 37 is sleeved on the outer side of the movable rod 30 , and the first spring 37 is movably installed in the limiting sleeve 28 .

[0041] A handle 38 is provided on one side of the clamping plate 27 , and the handle 38 is fixedly connected to the one side of the clamping plate 27 .

[0042] More specifically, when it is necessary to maintain or replace the mounting platform 7 or the electric tester installed on the mounting platform 7, the corresponding handle 38 is pulled and the movable rod 30 is pressed. The movable rod 30 will compress the first spring 37 sleeved on the outside, and then the movable rod 30 will slide in the limiting sleeve 28. Then the movable rod 30 will press the block 32 downward through the accommodating groove 31, so that the block 32 slides in the yielding groove 34. At the same time, the guide plates 35 arranged on both sides of the block 32 will slide in the guide groove 36. Due to the special structural design of the guide plates 35 and the guide groove 36, and the chamfered design at the bottom of the groove 33, when the block 32 slides in the yielding groove 34, The movable rod 30 is gradually received into the accommodating groove 31. When the movable rod 30 can no longer be pressed, the first spring 37 is compressed to the limit, and the block 32 is completely disengaged from the groove 33. Then, the limit sleeve 28 is pulled by the handle 38, so that the limit sleeve 28 and the movable rod 30 are pulled out of the mounting groove 29 together, and then the mounting platform 7 is removed. After maintenance or replacement, the mounting platform 7 is placed back in place, and the limit sleeve 28 is inserted into the mounting groove 29 through the mounting platform 7. Then, the movable rod 30 is released, and the first spring 37 will drive the movable rod 30 to reset, so that the movable rod 30 drives the block 32 to reset, so that the block 32 is engaged in the groove 33 again.

[0043] In summary, when the overall device is in use or running: when the device needs to be used to test the potentiometer board, the cable needs to be connected to the power box 6 first, first the cable is allowed to enter the cable harness 16 from the cable entry groove 17, and then the cable connector is plugged into the interface of the power box 6, and then the rotating sleeve 18 is rotated and the cable harness 16 is fixed so that the cable harness 16 does not rotate. Due to the mutual limitation of the guide rail 12 and the guide groove 13, the rotating sleeve 18 will drive the top sleeve 11 to rotate. Due to the special structural design of the spiral groove 10, the limiting ball 19 will spirally rise in the spiral groove 10, and then The rear top sleeve 11 will spirally rise along the limiting ball 19, and the guide groove 13 arranged on the outer side of the top sleeve 11 will move along the slide rail 24, and then the top sleeve 11 will lift the cable block 9 to move, and the cable block 9 will drive the sliding block 15 to slide in the sliding groove 14, and the top sleeve 11 will compress the second spring 26 connected to the top end. Due to the special structural design of the sliding groove 14 and the sliding block 15, the sliding block 15 will drive the cable block 9 to move inward when sliding in the sliding groove 14, thereby reducing the gap between the multiple cable blocks 9. When the multiple cable blocks 9 stably clamp the cables, , stop rotating sleeve 18, then place the potentiometer boards to be tested on the test bench 3 one by one, then make one of the test benches 3 correspond to the position of the mounting bench 7, then open the cylinder 4 installed on the top of the base 1, and the cylinder 4 drives the mounting bench 7 with the test pencil installed to move down through the piston rod 5 connected to the output end, and at the same time, the mounting bench 7 drives the slide 25 to slide on the slide rail 24. The setting of the slide rail 24 and the slide 25 ensures the stable movement of the mounting bench 7 and provides a safe limit distance for the movement of the mounting bench 7. The mounting bench 7 continues to move downward and cooperates with the test bench 3 to move the potentiometer board Clamp it, the push spring 23 arranged on the inner side of the mounting platform 7 can play a buffering role to prevent the potentiometer board from being damaged when the mounting platform 7 is pressed down. After the test is completed, the mounting platform 7 is raised, and then the motor 20 installed in the base 1 is turned on. The motor 20 drives the transmission belt 22 to move through the transmission wheel 21 connected to the output end, and then drives the transmission wheel 21 connected to the outside of the rotating platform 2 to rotate, thereby driving the rotating platform 2 to rotate. When the mounting platform 7 and the other test platform 3 are in corresponding positions, the motor 20 is turned off, and then the above process is referred to for multiple operations, thereby realizing multi-station testing of the potentiometer board.

[0044] When it is necessary to maintain or replace the mounting platform 7 or the electric tester installed on the mounting platform 7, pull the corresponding handle 38 and press the movable rod 30, the movable rod 30 will compress the first spring 37 sleeved on the outside, and then the movable rod 30 will slide in the limiting sleeve 28, and then the movable rod 30 will press the block 32 downward through the accommodating groove 31, so that the block 32 slides in the yielding groove 34, and the guide plates 35 arranged on both sides of the block 32 will slide in the guide groove 36. Due to the special structural design of the guide plates 35 and the guide groove 36, and the chamfered design at the bottom of the slot 33, when the block 32 slides in the yielding groove 34, it will gradually be When the movable rod 30 can no longer be pressed, the first spring 37 is compressed to the limit, and the block 32 is completely disengaged from the slot 33. Then, the limit sleeve 28 is pulled by the handle 38, so that the limit sleeve 28 and the movable rod 30 are pulled out of the mounting slot 29 together, and then the mounting platform 7 is removed. After maintenance or replacement, the mounting platform 7 is placed back in place, and the limit sleeve 28 is inserted into the mounting slot 29 through the mounting platform 7. Then, the movable rod 30 is released, and the first spring 37 will drive the movable rod 30 to reset, so that the movable rod 30 drives the block 32 to reset, so that the block 32 is engaged in the slot 33 again.

[0045] In all the schemes mentioned above, the connection between two parts can be selected according to actual conditions by welding, bolt and nut matching connection, bolt or screw connection or other well-known connection methods, which are not described here one by one. In the above, all fixed connections are preferably welded. Although the embodiments of the utility model have been shown and described, it can be understood by ordinary technicians in this field that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the utility model. The scope of the utility model is defined by the attached claims and their equivalents.

Claims

1. A potentiometer board testing device, comprising a base (1), characterized in that: A test device is installed on the base (1), and the test device comprises a rotating table (2), a test table (3), a cylinder (4), a piston rod (5), a power box (6) and a mounting table (7). The power box (6) is installed on one side of the base (1). The top end of the piston rod (5) is connected to the cylinder (4), and the bottom end is connected to the mounting table (7). The test table (3) is installed on the rotating table (2). A clamping mechanism is provided on one side of the mounting table (7). A wire clamping device is installed on one side of the power box (6). The wire clamping device comprises a wire harness (8), a wire harness block (9), a spiral groove (10), a top sleeve (11), a guide rail ( The invention relates to a wire harness (8) comprising a wire harness sleeve (16), a guide groove (13), a sliding groove (14), a sliding block (15), a wire harness sleeve (16), a wire inlet groove (17), a rotating sleeve (18) and a limiting ball (19); the wire harness (8) is arranged on one side of the wire harness block (9); the wire harness block (9) is connected to the sliding block (15); the spiral groove (10) is arranged on the inner side of the wire harness sleeve (16); the limiting ball (19) is installed on the outer side of the top sleeve (11); the top sleeve (11) is installed on the inner side of the rotating sleeve (18); the guide rail (12) is adapted to the guide groove (13); the sliding block (15) is installed in the sliding groove (14); and the wire inlet groove (17) is arranged on the side wall of the wire harness sleeve (16).

2. A potentiometer board testing device according to claim 1, characterized in that: A motor (20) is arranged inside the base (1), a transmission wheel (21) is arranged at the output end of the motor (20) and the bottom end of the rotating platform (2), and a transmission belt (22) is sleeved on the outer side of the transmission wheel (21).

3. A potentiometer board testing device according to claim 2, characterized in that: A push spring (23) is provided inside the test table (3), and the push spring (23) is installed on the rotating table (2).

4. A potentiometer board testing device according to claim 3, characterized in that: The base (1) is provided with a slide rail (24), the slide rail (24) is provided with a slide platform (25), the slide platform (25) is slidably mounted on one side of the slide rail (24), and one side of the mounting platform (7) is connected to the slide platform (25).

5. A potentiometer board testing device according to claim 1, characterized in that: A second spring (26) is provided inside the cable harness sleeve (16), and the bottom end of the second spring (26) is connected to the top end of the cable harness block (9).

6. A potentiometer board testing device according to any one of claims 1 to 5, characterized in that: The clamping mechanism comprises a clamping plate (27), a limiting sleeve (28), a mounting groove (29), a movable rod (30), a containing groove (31), a clamping block (32), a clamping groove (33), a giving groove (34), a guide plate (35) and a guide groove (36); the clamping plate (27) is fixedly connected to one end of the limiting sleeve (28); the limiting sleeve (28) is detachably mounted in the mounting groove (29); the mounting groove (29) is provided on the slide table (25); and the movable rod (30) is movably mounted on the slide table (25). The movable rod (30) is movably mounted in the limiting sleeve (28), the accommodating groove (31) is provided on the side wall of the movable rod (30), one end of the clamping block (32) is clamped in the clamping groove (33), the clamping groove (33) is provided in the mounting groove (29), the giving way groove (34) is provided on the side wall of the giving way groove (34), the guiding groove (36) is provided on the side wall of the giving way groove (34), the guiding plate (35) is provided on both sides of the clamping block (32), and the guiding plate (35) is slidably mounted in the guiding groove (36).

7. A potentiometer board testing device according to claim 6, characterized in that: A first spring (37) is sleeved on the outer side of the movable rod (30), and the first spring (37) is movably mounted in the limiting sleeve (28).

8. A potentiometer board testing device according to claim 7, characterized in that: A handle (38) is provided on one side of the card plate (27), and the handle (38) is fixedly connected to one side of the card plate (27).

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