Test fixture with pre-pressing structure

Abstract

The utility model relates to the technical field of test fixtures, and discloses a test fixture with a prepressing structure, which comprises a fixture body, a test mechanism is fixedly arranged on the back of the fixture body, and a fixing mechanism is fixedly arranged on the side of the fixture body. The testing mechanism comprises a testing part and a connecting part; the top surface of the connecting part is fixedly connected with the bottom surface of the testing part; the connecting part comprises a supporting rod, and the front face of the supporting rod is hinged to the back face of the jig body through a hinge rod. The fixing mechanism comprises a fixing part and a power part; the back surface of the power part is fixedly connected with the front surface of the fixing part; the power portion includes a device plate. According to the display screen module pre-pressing device, the fixing mechanism is arranged, a motor and a two-way threaded rod A are arranged to work in a matched mode, meanwhile, a fixing belt can be contracted through a transmission assembly, and therefore the display screen module needing to be subjected to pre-pressing testing can be rapidly fixed and clamped, and the situation that the machining effect is affected due to position deviation does not occur when the display screen module is machined.

Description

Technical Field

[0001] The utility model relates to the technical field of test fixtures, in particular to a test fixture with a pre-pressing structure. Background Art

[0002] Before leaving the factory, LCD modules usually undergo functional testing on the production line. During the test, the connector of the LCD module must be placed in the probe slot of the test fixture for alignment before testing. However, the connector is relatively light, and when it is placed in the FPC access part for alignment, the FPC of the connector will be lifted up.

[0003] A Chinese patent discloses a test fixture with a pre-pressing structure, the publication number of which is CN211426547U, comprising a fixture body and a pre-pressing tongue structure installed on the fixture body, wherein the fixture body comprises a bottom surface and an upper cover which is reversibly installed on the bottom surface; an FPC access portion is provided on the bottom surface, and the pre-pressing tongue structure is reversibly installed on the bottom surface corresponding to the FPC access portion. The test fixture with a pre-pressing structure has a simple structure, solves the problem of the indeterminate warping of the connector FPC, is easy to operate, and is worthy of being vigorously promoted and used.

[0004] However, there are still the following disadvantages: when the test fixture with a pre-pressing structure is used, it is impossible to fix and clamp display screens of different specifications so that position deviation will not occur during the pre-pressing operation. Therefore, a test fixture with a pre-pressing structure is designed. Utility Model Content

[0005] The purpose of the utility model is to provide a test fixture with a pre-pressing structure to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a test fixture with a pre-pressing structure comprises a fixture body, a testing mechanism is fixedly arranged on the back of the fixture body, and a fixing mechanism is fixedly arranged on the side of the fixture body;

[0007] The testing mechanism comprises a testing part and a connecting part, wherein the top surface of the connecting part and the bottom surface of the testing part are fixedly connected;

[0008] The connecting part comprises a support rod, the front side of the support rod and the back side of the fixture body are hingedly connected by a hinge rod;

[0009] The fixing mechanism comprises a fixing part and a power part, and the back side of the power part and the front side of the fixing part are fixedly connected;

[0010] The power unit comprises a device plate. The bottom surfaces of the left and right ends of the fixture body are respectively fixedly connected to the top surfaces of the two device plates. A motor is fixedly arranged on the front surface of the device plate at the left end.

[0011] Preferably, a turning handle is provided on the right side of the bottom end of the support rod, the left side of the turning handle is fixedly connected to the right side of the bottom hinged rod, the top surface of the support rod is hingedly provided with a top plate, and the front end top surface of the top plate is fixedly provided with a hydraulic rod.

[0012] Preferably, the bottom surface of the hydraulic rod output rod passes through the top surface of the top plate and extends to below the top plate, a test plate is fixedly provided on the bottom surface of the hydraulic rod output rod, and four supporting legs are respectively fixedly provided on the bottom surfaces of the four ends of the fixture body.

[0013] Preferably, the back side of the motor output rod passes through the front side of the left device plate and extends to the inside of the device plate. A bidirectional threaded rod A is fixedly arranged on the back side of the motor output rod. The surface of the bidirectional threaded rod A and the inner wall of the left end device plate are rotatably connected by a bearing.

[0014] Preferably, a bidirectional threaded rod B is arranged inside the device plate at the right end, the surface of the bidirectional threaded rod B and the inner wall of the device plate at the right end are rotatably connected by a bearing, and the rear end surfaces of the bidirectional threaded rod A and the bidirectional threaded rod B are respectively fixed with two pulleys.

[0015] Preferably, a belt is wound around the surfaces of the two pulleys, and the two pulleys are connected by a belt drive. Two moving blocks are threadedly sleeved on the front and rear end surfaces of the bidirectional threaded rod A and the bidirectional threaded rod B, and a limiting rod is fixedly provided on the top surface of the moving block.

[0016] Preferably, the side surface of the limit rod is slidably connected to the inner wall of the fixture body, a fixed block is fixedly provided on the front of the limit rod, a rotating rod is provided inside the fixed block, the surface of the rotating rod and the inner wall of the fixed block are rotatably connected by a bearing, a winding roller is fixedly provided on the surface of the rotating rod, and fixed belts are wound around the surfaces of the two winding rollers.

[0017] Compared with the prior art, the beneficial effects of the utility model are:

[0018] 1. The test fixture with a pre-pressing structure is provided with a fixing mechanism, a motor and a bidirectional threaded rod A are provided to cooperate with each other, and a fixed belt can be retracted through a transmission component, so as to quickly fix and clamp the display screen module that needs to be pre-pressed, so that the display screen module will not be offset during processing, which will affect the processing effect;

[0019] 2. The test fixture with a pre-stressing structure is provided with a test mechanism, and the whole top plate can be rotated by angle by the cooperation of the turning handle and the supporting rod. Therefore, when the pre-stressing test of the display module is performed according to actual needs, the top plate and the hydraulic rod can be stored and moved, so as to facilitate the normal testing work;

[0020] 3. The test fixture with a pre-stressing structure is equipped with a hydraulic rod and a test board that work together, so that after the display screen module is fixed on the top of the fixture body, the test board can be moved down, thereby solving the problem of the FPC of the connector being tilted indefinitely when the connector is placed in the FPC access part for alignment. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a three-dimensional schematic diagram of the front structure of the utility model;

[0022] Figure 2 It is a three-dimensional cross-sectional schematic diagram of the left-side structure of the utility model;

[0023] Figure 3 It is a three-dimensional schematic diagram of the back structure of the utility model;

[0024] Figure 4 It is a three-dimensional cross-sectional schematic diagram of the front structure of the utility model;

[0025] Figure 5 For this utility model Figure 3 A three-dimensional enlarged schematic diagram of the structure of area A in the middle.

[0026] In the figure: 1. fixture body; 2. testing mechanism; 201. support rod; 202. turning handle; 203. top plate; 204. hydraulic rod; 205. testing plate; 206. supporting leg; 3. fixing mechanism; 301. installation plate; 302. motor; 303. bidirectional threaded rod A; 304. bidirectional threaded rod B; 305. pulley; 306. belt; 307. moving block; 308. limiting rod; 309. fixing block; 310. rotating rod; 311. winding roller; 312. fixing belt. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] Embodiment 1

[0029] See also Figure 1-Figure 5As shown, a test fixture with a pre-pressing structure includes a fixture body 1, a test mechanism 2 is fixedly arranged on the back of the fixture body 1, and a fixing mechanism 3 is fixedly arranged on the side of the fixture body 1; the test mechanism 2 includes a test part and a connecting part, and the top surface of the connecting part is fixedly connected to the bottom surface of the test part; the connecting part includes a support rod 201, and the front surface of the support rod 201 and the back surface of the fixture body 1 are hinged by a hinge rod; the fixing mechanism 3 includes a fixing part and a power part, and the back surface of the power part is fixedly connected to the front surface of the fixing part; the power part includes a device plate 301, and the bottom surfaces of the left and right ends of the fixture body 1 are respectively fixedly connected to the top surfaces of the two device plates 301, and the front surface of the left end device plate 301 is fixedly provided with a motor 302;

[0030] During operation, the jig body 1 is placed firmly by the four supporting legs 206, the display screen module that needs to be pre-stressed is placed on the jig body 1, its two ends and the fixed belts 312 at both ends are fitted, and the motor 302 is started to rotate the bidirectional threaded rod A303.

[0031] Furthermore, a handle 202 is provided on the right side of the bottom end of the support rod 201, the left side of the handle 202 is fixedly connected to the right side of the bottom hinge rod, a top plate 203 is hingedly provided on the top surface of the support rod 201, and a hydraulic rod 204 is fixedly provided on the top surface of the front end of the top plate 203;

[0032] During operation, the handle 202 is rotated to flip the support rod 201 , and the top plate 203 is hinged to the support rod 201 so that the top plate 203 is aligned with the top of the display screen module.

[0033] Furthermore, the bottom surface of the output rod of the hydraulic rod 204 passes through the top surface of the top plate 203 and extends to the bottom of the top plate 203. A test plate 205 is fixedly arranged on the bottom surface of the output rod of the hydraulic rod 204. Four supporting legs 206 are respectively fixedly arranged on the bottom surfaces of the four ends of the fixture body 1.

[0034] During operation, the top plate 203 is aligned with the top of the display screen module, and the hydraulic rod 204 is started to move the test plate 205 downward to pre-press the display screen module.

[0035] Furthermore, the back of the output rod of the motor 302 passes through the front of the left device plate 301 and extends to the inside of the device plate 301. The model of the motor 302 is Y2-112M-6. A bidirectional threaded rod A303 is fixedly arranged on the back of the output rod of the motor 302. The surface of the bidirectional threaded rod A303 and the inner wall of the left end device plate 301 are rotatably connected by a bearing.

[0036] During operation, the motor 302 is started to rotate the bidirectional threaded rod A303.

[0037] Furthermore, a bidirectional threaded rod B304 is provided inside the right end device plate 301, and the surface of the bidirectional threaded rod B304 and the inner wall of the right end device plate 301 are rotatably connected by a bearing, and two pulleys 305 are fixedly sleeved on the rear end surfaces of the bidirectional threaded rod A303 and the bidirectional threaded rod B304 respectively;

[0038] During operation, the bidirectional threaded rod A303 rotates, and through the transmission effect of the pulley 305 and the belt 306, the bidirectional threaded rod B304 rotates simultaneously.

[0039] Furthermore, a belt 306 is wound around the surfaces of the two pulleys 305, and the two pulleys 305 are connected by the belt 306. Two moving blocks 307 are respectively threadedly sleeved on the front and rear end surfaces of the bidirectional threaded rod A303 and the bidirectional threaded rod B304, and a limit rod 308 is fixedly disposed on the top surface of the moving block 307.

[0040] During operation, the bidirectional threaded rod B304 rotates simultaneously, and through the action of the two reverse threads, the two moving blocks 307 drive the limiting rod 308 to move forward and backward.

[0041] Furthermore, the side of the limit rod 308 is slidably connected to the inner wall of the fixture body 1, the front of the limit rod 308 is fixedly provided with a fixed block 309, the fixed block 309 is provided with a rotating rod 310, the surface of the rotating rod 310 and the inner wall of the fixed block 309 are rotatably connected by a bearing, the surface of the rotating rod 310 is fixedly sleeved with a winding roller 311, and the surfaces of the two winding rollers 311 are wound with fixed belts 312;

[0042] During operation, the two moving blocks 307 drive the limiting rod 308 to move forward and backward, so that the fixed block 309 moves, and the fixed belt 312 wound around the surface of the winding roller 311 is tightened, so that the display screen module is fixed and clamped.

[0043] Working principle: When in use, first place the fixture body 1 firmly through the four supporting legs 206, place the display screen module that needs to be pre-stressed on the fixture body 1, fit its two ends with the fixed belts 312 at both ends, start the motor 302, so that the bidirectional threaded rod A303 rotates, and the bidirectional threaded rod B304 rotates simultaneously through the transmission action of the pulley 305 and the belt 306, and the two moving blocks 307 drive the limit rod 308 to move forward and backward through the action of the two reverse threads, so that the fixed block 309 moves, and the fixed belt 312 wrapped around the surface of the winding roller 311 is tightened to fix and clamp the display screen module, turn the handle 202 to flip the support rod 201, and through the hinge of the top plate 203 and the support rod 201, the top plate 203 is aligned with the top of the display screen module, start the hydraulic rod 204, and move the test plate 205 downward to pre-stress the display screen module.

[0044] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A test fixture with a pre-pressing structure, comprising a fixture body (1), characterized in that: A testing mechanism (2) is fixedly arranged on the back of the jig body (1), and a fixing mechanism (3) is fixedly arranged on the side of the jig body (1); The testing mechanism (2) comprises a testing part and a connecting part, wherein the top surface of the connecting part and the bottom surface of the testing part are fixedly connected; The connecting portion comprises a support rod (201), the front side of the support rod (201) and the back side of the fixture body (1) being hingedly connected by a hinge rod; The fixing mechanism (3) comprises a fixing part and a power part, and the back side of the power part and the front side of the fixing part are fixedly connected; The power unit comprises a device plate (301), the bottom surfaces of the left and right ends of the fixture body (1) are fixedly connected to the top surfaces of the two device plates (301) respectively, and a motor (302) is fixedly arranged on the front surface of the device plate (301) at the left end.

2. A test fixture with a pre-pressing structure according to claim 1, characterized in that: A turning handle (202) is provided on the right side of the bottom end of the support rod (201); the left side of the turning handle (202) is fixedly connected to the right side of the bottom end hinged rod; a top plate (203) is hingedly provided on the top surface of the support rod (201); and a hydraulic rod (204) is fixedly provided on the front end top surface of the top plate (203).

3. A test fixture with a pre-pressing structure according to claim 2, characterized in that: The bottom surface of the output rod of the hydraulic rod (204) passes through the top surface of the top plate (203) and extends to below the top plate (203). A test plate (205) is fixedly arranged on the bottom surface of the output rod of the hydraulic rod (204). Four supporting legs (206) are respectively fixedly arranged on the bottom surfaces of the four ends of the fixture body (1).

4. The test fixture with a pre-pressing structure according to claim 1, characterized in that: The back side of the output rod of the motor (302) passes through the front side of the left device plate (301) and extends into the interior of the device plate (301). A bidirectional threaded rod A (303) is fixedly arranged on the back side of the output rod of the motor (302). The surface of the bidirectional threaded rod A (303) and the inner wall of the left device plate (301) are rotatably connected via a bearing.

5. The test fixture with a pre-pressing structure according to claim 4, characterized in that: A bidirectional threaded rod B (304) is arranged inside the device plate (301) at the right end, and the surface of the bidirectional threaded rod B (304) and the inner wall of the device plate (301) at the right end are rotatably connected by a bearing, and two pulleys (305) are fixedly sleeved on the rear end surfaces of the bidirectional threaded rod A (303) and the bidirectional threaded rod B (304), respectively.

6. The test fixture with a pre-pressing structure according to claim 5, characterized in that: A belt (306) is wound around the surfaces of the two pulleys (305), and the two pulleys (305) are connected by the belt (306). Two moving blocks (307) are respectively threadedly sleeved on the front and rear end surfaces of the bidirectional threaded rod A (303) and the bidirectional threaded rod B (304), and a limiting rod (308) is fixedly arranged on the top surface of the moving block (307).

7. The test fixture with a pre-pressing structure according to claim 6, characterized in that: The side surface of the limiting rod (308) is slidably connected to the inner wall of the fixture body (1); a fixed block (309) is fixedly arranged on the front of the limiting rod (308); a rotating rod (310) is arranged inside the fixed block (309); the surface of the rotating rod (310) and the inner wall of the fixed block (309) are rotatably connected by a bearing; a winding roller (311) is fixedly sleeved on the surface of the rotating rod (310); and fixed belts (312) are wound around the surfaces of the two winding rollers (311).

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