An electronic device conductive performance test fixture

Abstract

The utility model relates to test fixture field especially, more particularly to a kind of electronic device conductivity test fixture. Including test fixture ontology and replacement structure, the upper surface of test fixture ontology is equipped with several operation buttons, digital display device and extrusion device, the upper surface of test fixture ontology is equipped with test mould by replacement structure, the inside of test mould is equipped with circuit board, the lower surface of extrusion device is equipped with limit stop by replacement structure, the upper surface of test fixture ontology is equipped with replacement structure. The utility model provides a kind of electronic device conductivity test fixture, which solves the problem of fixing the test mould on the test fixture ontology by bolts, and the personnel needs to use screwdriver and other tools to replace the test mould during the replacement process. Since this replacement method is very cumbersome, it can cause low work efficiency.

Description

Technical Field

[0001] This utility model relates to the field of testing fixtures, and in particular to a testing fixture for the conductivity performance of electronic devices. Background Technology

[0002] The test fixture mainly consists of a test fixture body, a pressing device, operating buttons, a test mold, a digital display device, and a limit plate. It is a common electronic device conductivity test fixture used to test the conductivity of circuit boards.

[0003] Existing technologies, such as the utility model with publication number CN214503683U, disclose a multifunctional electronic device testing fixture. This patent employs a housing, which includes a positioning platform supporting the electronic device. The positioning platform has insertion holes for pins on its insertion surface, and conductive terminals that mate with the pins are located within the insertion holes. At least one conductive terminal is a movable terminal, which is slidably mounted on the housing along a first direction parallel to the insertion surface. Each movable terminal corresponds to at least one positioning plate, and the positioning plate includes a movable slot corresponding to and capable of engaging with the movable terminal. A slot is provided on the housing at the position corresponding to the movable terminal for inserting the positioning plate. Inserting the positioning plate into the slot allows the movable terminal to be inserted into the corresponding movable slot, thus positioning the movable terminal in the first direction. This utility model selects different sized positioning plates according to different specifications of electronic devices to fix the movable terminal in a position matching the pins of the electronic device. It is applicable to electronic devices of different specifications, has strong versatility, and is easy to operate.

[0004] The inventors discovered in their daily work that the process of replacing test molds is cumbersome because existing methods use bolts to fix the test molds to the test fixture body, and personnel also need to use tools such as screwdrivers to replace the test molds. This replacement method is very complicated and leads to low work efficiency. Utility Model Content

[0005] The purpose of this utility model is to solve the shortcomings of the existing technology, which uses bolts to fix the test mold to the test fixture body, and requires personnel to use screwdrivers and other tools to replace the test mold. This replacement method is very cumbersome and leads to low work efficiency. Therefore, this utility model proposes an electronic device conductivity test fixture.

[0006] To solve the above-mentioned technical problems, this utility model provides a testing fixture for the conductivity performance of electronic devices, comprising: a testing fixture body and a replacement structure. The upper surface of the testing fixture body is equipped with several operation buttons, a digital display device, and a pressing device. A testing mold is mounted on the upper surface of the testing fixture body via the replacement structure. A circuit board is located inside the testing mold. A limit plate is mounted on the lower surface of the pressing device via the replacement structure. The replacement structure on the upper surface of the testing fixture body includes two fixing blocks, two slots, four positioning holes, a limit groove, and a fixing post. The two fixing blocks are fixedly connected to the testing fixture body. Both slots are formed on the testing mold, both positioning holes are formed on the testing mold, and the limit groove is formed on the test mold. On the extrusion device, the fixed column is fixedly connected to the extrusion device, the inner wall of the positioning hole is slidably connected to the positioning rod, the four positioning rods are fixedly connected to the test fixture body, the inner wall of the fixed block is slidably connected to the connecting rod, the two connecting rods are fixedly connected to each other on the side closest to each other, the surface of the connecting rod is fitted with a spring, the two ends of the spring are fixedly connected to the connecting rod and the fixed block respectively, the side of the connecting block away from the connecting rod is fixedly connected to a locking block, the locking block is slidably connected to the locking groove, the inner wall of the limiting groove is slidably connected to a connecting plate, the connecting plate is fixedly connected to the limiting plate, the end of the fixed column away from the extrusion device is rotatably connected to a stop block, the arc surface of the fixed column is fitted with a coil spring, the two ends of the coil spring are fixedly connected to the extrusion device and the stop block respectively.

[0007] The aforementioned components achieve the following effect: when personnel need to test circuit boards of other sizes, they can move the two connecting rods to slide the locking block out of the inner wall of the slot, then move the test mold until the positioning rod slides out of the inner wall of the positioning hole, and then move the stop block and connecting plate until the connecting plate completely slides out of the inner wall of the limiting groove. This allows personnel to easily replace the test mold and limiting plate with those suitable for circuit boards of other sizes, improving the applicability of the test fixture and the work efficiency of personnel.

[0008] Preferably, the inner wall of the fixing block is slidably connected to a limiting rod, and the two limiting rods are fixedly connected to the connecting block.

[0009] The effect achieved by the above components is that the limiting rod can limit the movement of the connecting block, thereby improving the stability of the connecting block during movement.

[0010] Preferably, a pull ring is fixedly connected to the end of the connecting rod away from the connecting block, and the pull ring has a circular cross-section.

[0011] The effect achieved by the above components is that the pull ring allows personnel to easily move the connecting rod, thereby improving the ease of operation for personnel.

[0012] Preferably, a guide block is fixedly connected to the upper end of the positioning rod.

[0013] The effect achieved by the above components is that the guide block can limit the positioning rod, making it convenient for personnel to slide the positioning rod into the inner wall of the positioning hole.

[0014] Preferably, the card block is a stainless steel block.

[0015] The effect achieved by the above components is that the stainless steel block has high strength and good wear resistance, which can prevent the block from deforming during short-term use.

[0016] Preferably, a protective structure is provided on one side of the test fixture body. The protective structure includes two positioning blocks and two iron plates. The two positioning blocks are fixedly connected to the test fixture body, and the two iron plates are fixedly connected to the test fixture body. An installation rod is fixedly connected to the side of each of the two positioning blocks that is close to each other. A rotating block is rotatably connected to the end of the installation rod away from the positioning block. A protective plate is fixedly connected to the side of the two rotating blocks that is away from the test fixture body. Two magnetic plates are fixedly connected to the inner wall of the protective plate, and a handle is fixedly connected to the side of the protective plate away from the magnetic plates.

[0017] The effect achieved by the above-mentioned components is that when personnel need to place the circuit board inside the test mold, they can first rotate the handle to make the magnetic plate attract the iron plate, thereby preventing personnel from accidentally touching the operation buttons during the operation and affecting their work efficiency.

[0018] Preferably, an anti-slip sleeve is fixedly connected to the arc surface of the grip, and the cross-section of the anti-slip sleeve is a hollow circle.

[0019] The effect achieved by the above components is that the anti-slip sleeve can increase the friction between the person's hand and the handle, and can prevent the person from slipping when moving the handle.

[0020] Compared with related technologies, the electronic device conductivity testing fixture provided by this utility model has the following beneficial effects:

[0021] By setting up a replacement structure, when personnel need to test circuit boards of other sizes, they can easily replace the limit plate and test mold, thereby speeding up the replacement process and improving work efficiency.

[0022] By setting up a protective structure, when personnel need to place the circuit board inside the test mold for testing, the operating buttons can be protected by the protective structure, which can prevent personnel from accidentally touching the operating buttons during the operation and affecting the work efficiency. Attached Figure Description

[0023] Figure 1 A schematic diagram of the structure of a testing fixture for the conductivity performance of electronic devices provided by this utility model;

[0024] Figure 2 for Figure 1 The diagram shows the structural schematic of the replacement structure.

[0025] Figure 3 for Figure 2 A schematic diagram of the enlarged structure at point A is shown.

[0026] Figure 4 for Figure 2 A schematic diagram of the enlarged structure at point B shown;

[0027] Figure 5 for Figure 1 The diagram shows the structure of the protective structure.

[0028] The diagram is labeled as follows: 1. Test fixture body; 2. Extrusion device; 3. Replacement structure; 301. Slot; 302. Block; 303. Fixing block; 304. Connecting rod; 305. Connecting block; 306. Pull ring; 307. Spring; 308. Limiting rod; 309. Positioning hole; 310. Positioning rod; 311. Guide block; 312. Limiting groove; 313. Connecting plate; 314. Fixing column; 315. Coil spring; 316. Stop block; 4. Protective structure; 41. Positioning block; 42. Mounting rod; 43. Rotating block; 44. Protective plate; 45. Magnetic plate; 46. Iron plate; 47. Handle; 48. Anti-slip sleeve; 5. Operation button; 6. Test mold; 7. Circuit board; 8. Digital display device; 9. Limiting plate. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0030] The specific implementation of this utility model will be described in detail below with reference to specific embodiments.

[0031] Please see Figure 1This utility model provides a test fixture for the conductivity performance of electronic devices, comprising: a test fixture body 1 and a replacement structure 3. The upper surface of the test fixture body 1 is equipped with a plurality of operation buttons 5, a digital display device 8 and a pressing device 2. The upper surface of the test fixture body 1 is equipped with a test mold 6 via the replacement structure 3. The interior of the test mold 6 is provided with a circuit board 7. The lower surface of the pressing device 2 is equipped with a limit plate 9 via the replacement structure 3. The upper surface of the test fixture body 1 is provided with the replacement structure 3. A protective structure 4 is provided on one side of the test fixture body 1.

[0032] In the embodiments of this utility model, please refer to Figures 2 to 4The replacement structure 3 includes two fixing blocks 303, two slots 301, four positioning holes 309, a limiting groove 312, and a fixing post 314. The two fixing blocks 303 are fixedly connected to the test fixture body 1. The two slots 301 are both formed on the test mold 6. The four positioning holes 309 are both formed on the test mold 6. The limiting groove 312 is formed on the extrusion device 2. The fixing post 314 is fixedly connected to the extrusion device 2. The inner wall of the positioning hole 309 is slidably connected to the positioning rod 310. The four positioning rods 310 are fixedly connected to the test fixture body 1. The inner wall of the fixing block 303 is slidably connected to the connecting rod 304. The two connecting rods 304 are close to each other. One side of each is fixedly connected to a connecting block 305. A spring 307 is sleeved on the surface of the connecting rod 304. The two ends of the spring 307 are fixedly connected to the connecting rod 304 and the fixing block 303 respectively. A locking block 302 is fixedly connected to the side of the connecting block 305 away from the connecting rod 304. The locking block 302 is slidably connected to the locking groove 301. A connecting plate 313 is slidably connected to the inner wall of the limiting groove 312. The connecting plate 313 is fixedly connected to the limiting plate 9. A stop block 316 is rotatably connected to the end of the fixing column 314 away from the extrusion device 2. A coil spring 315 is sleeved on the arc surface of the fixing column 314. The two ends of the coil spring 315 are fixedly connected to the extrusion device 2 and the stop block 316 respectively. When personnel need to test circuit boards 7 of other sizes, they can move the two connecting rods 304 to slide the locking block 302 out of the inner wall of the locking slot 301. Then, the personnel can move the test mold 6 until the positioning rod 310 slides out of the inner wall of the positioning hole 309. Then, the personnel can move the stop block 316 and the connecting plate 313 until the connecting plate 313 completely slides out of the inner wall of the limiting groove 312. This allows personnel to easily replace the test mold 6 and the limiting plate 9 with those suitable for circuit boards 7 of other sizes, improving the applicability of the test fixture body 1 and the work efficiency of the personnel. The inner wall of the fixing block 303 is slidably connected to the limiting rod 308, and the two limiting rods 308 are fixedly connected to the connecting block 305. The limiting rod 308 can limit the connecting block 305, which can improve the stability of the connecting block 305 during movement. The end of the connecting rod 304 away from the connecting block 305 is fixedly connected to a pull ring 306, which has a circular cross-section. The pull ring 306 facilitates the movement of the connecting rod 304, improving operational convenience. A guide block 311 is fixedly connected to the upper end of the positioning rod 310. The guide block 311 limits the positioning rod 310, allowing it to slide easily into the inner wall of the positioning hole 309. The locking block 302 is made of stainless steel. The stainless steel block has high strength and good wear resistance, preventing deformation of the locking block 302 during short-term use.

[0033] In the embodiments of this utility model, please refer to Figure 5The protective structure 4 includes two positioning blocks 41 and two iron plates 46. The two positioning blocks 41 are fixedly connected to the test fixture body 1, and the two iron plates 46 are also fixedly connected to the test fixture body 1. Mounting rods 42 are fixedly connected to the sides of the two positioning blocks 41 that are close to each other. A rotating block 43 is rotatably connected to the end of the mounting rod 42 away from the positioning block 41. A protective plate 44 is fixedly connected to the side of the two rotating blocks 43 away from the test fixture body 1. Two magnetic plates 45 are fixedly connected to the inner wall of the protective plate 44, and a handle 47 is fixedly connected to the side of the protective plate 44 away from the magnetic plates 45. This design allows personnel to place the circuit board 7 inside the test mold 6 by rotating the handle 47, causing the magnetic plates 45 to attract the iron plates 46. This prevents personnel from accidentally touching the operation button 5 during operation, thus affecting their work efficiency. An anti-slip sleeve 48 is fixedly connected to the arc surface of the handle 47. The anti-slip sleeve 48 has a hollow circular cross-section. The anti-slip sleeve 48 can increase the friction between the person's hand and the handle 47, and can prevent the person from slipping when moving the handle 47;

[0034] The working principle of the electronic device conductivity testing fixture provided by this utility model is as follows: When personnel need to test the circuit board 7, they first place the circuit board 7 inside the test mold 6. Then, by moving the pressing device 2, the limiting plate 9 presses and limits the circuit board 7, making the circuit board 7 contact the test element inside the test mold 6. Then, the personnel operate the button 5 to test the conductivity of the circuit board 7. The test value will be displayed on the digital display device 8. When personnel need to test circuit boards 7 of other sizes, they can first use the pull ring 306 to drive the connecting rod 304 away from the slot 301. The pull ring 306 facilitates the movement of the connecting rod 304, improving the ease of operation. Then, the connecting rod 304 drives the connecting block 305 away from the slot 301. The connecting rod 304 also drives the spring 307 to stretch. Then, the connecting block 305 drives the two limiting rods 308 and the slot 302 away from the slot 301. The test mold 6 moves in the following direction. The limiting rod 308 can limit the connecting block 305, improving its stability during movement. This continues until the locking block 302 slides out of the inner wall of the locking groove 301. Then, the operator moves the test mold 6 upwards until the positioning rod 310 and guide block 311 completely slide out of the inner wall of the positioning hole 309. The guide block 311 limits the positioning rod 310, allowing the operator to easily slide it into the inner wall of the positioning hole 309. Then, the operator rotates the stop block 316, which drives the coil spring 315 to rewind until the stop block 316 is away from the side of the connecting plate 313. Then, the operator moves the limiting plate 9, which drives the connecting plate 313 to move away from the limiting groove 312 until the connecting plate 313 completely slides out of the inner wall of the limiting groove 312. The locking block 302 is a stainless steel block. The stainless steel block has high strength and good wear resistance, which can prevent the locking block 302 from deforming during short-term use.

[0035] In addition, when personnel need to place the circuit board 7 inside the test mold 6 for testing, they can first use the anti-slip sleeve 48 to rotate the handle 47, so that the handle 47 rotates towards the operation button 5. The anti-slip sleeve 48 can increase the friction between the personnel's hand and the handle 47, which can prevent the personnel from slipping during the movement of the handle 47. Then the handle 47 drives the protective plate 44 to rotate towards the operation button 5. The protective plate 44 drives the two magnetic plates 45 and the two rotating blocks 43 to rotate towards the operation button 5 until the magnetic plates 45 and the iron plate 46 are attracted to each other.

[0036] The circuits and controls involved in this utility model are all existing technologies, and will not be described in detail here.

[0037] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A fixture for testing the conductivity of electronic devices, characterized in that, include: The test fixture body (1) and the replacement structure (3) are provided. The upper surface of the test fixture body (1) is equipped with several operation buttons (5), a digital display device (8), and a pressing device (2). A test mold (6) is mounted on the upper surface of the test fixture body (1) via the replacement structure (3). A circuit board (7) is provided inside the test mold (6). A limit plate (9) is mounted on the lower surface of the pressing device (2) via the replacement structure (3). The upper surface of the test fixture body (1) is provided with the replacement structure (3). 3) Includes two fixing blocks (303), two slots (301), four positioning holes (309), a limiting groove (312), and a fixing post (314). The two fixing blocks (303) are fixedly connected to the test fixture body (1). The two slots (301) are all opened on the test mold (6). The four positioning holes (309) are all opened on the test mold (6). The limiting groove (312) is opened on the extrusion device (2). The fixing post (314) is fixedly connected to the extrusion device (2). The positioning holes (309) are fixedly connected to the test fixture body (1). The inner wall of the fixture is slidably connected with positioning rods (310), and the four positioning rods (310) are fixedly connected to the test fixture body (1). The inner wall of the fixing block (303) is slidably connected with connecting rods (304). The two connecting rods (304) are fixedly connected to each other on the side closest to each other. The surface of the connecting rod (304) is fitted with a spring (307). The two ends of the spring (307) are fixedly connected to the connecting rod (304) and the fixing block (303) respectively. The connecting block (305) is away from the connecting rod (310). A locking block (302) is fixedly connected to one side of the 04), the locking block (302) is slidably connected to the locking groove (301), a connecting plate (313) is slidably connected to the inner wall of the limiting groove (312), the connecting plate (313) is fixedly connected to the limiting plate (9), a stop block (316) is rotatably connected to one end of the fixed column (314) away from the extrusion device (2), a coil spring (315) is sleeved on the arc surface of the fixed column (314), and the two ends of the coil spring (315) are fixedly connected to the extrusion device (2) and the stop block (316) respectively.

2. The electronic device conductivity testing fixture according to claim 1, characterized in that, The inner wall of the fixing block (303) is slidably connected to a limiting rod (308), and the two limiting rods (308) are fixedly connected to the connecting block (305).

3. The electronic device conductivity testing fixture according to claim 1, characterized in that, A pull ring (306) is fixedly connected to one end of the connecting rod (304) away from the connecting block (305), and the pull ring (306) has a circular cross-section.

4. The electronic device conductivity testing fixture according to claim 1, characterized in that, The upper end of the positioning rod (310) is fixedly connected to a guide block (311).

5. The electronic device conductivity testing fixture according to claim 1, characterized in that, The card block (302) is a stainless steel block.

6. The electronic device conductivity testing fixture according to claim 1, characterized in that, The test fixture body (1) has a protective structure (4) on one side. The protective structure (4) includes two positioning blocks (41) and two iron plates (46). The two positioning blocks (41) are fixedly connected to the test fixture body (1), and the two iron plates (46) are fixedly connected to the test fixture body (1). The two positioning blocks (41) are fixedly connected to the side of each other with a mounting rod (42). The end of the mounting rod (42) away from the positioning block (41) is rotatably connected to a rotating block (43). The side of the two rotating blocks (43) away from the test fixture body (1) is fixedly connected to a protective plate (44). The inner wall of the protective plate (44) is fixedly connected to two magnetic plates (45). The side of the protective plate (44) away from the magnetic plates (45) is fixedly connected to a handle (47).

7. The electronic device conductivity testing fixture according to claim 6, characterized in that, The grip (47) has an anti-slip sleeve (48) fixedly connected to its arc surface, and the anti-slip sleeve (48) has a hollow circular cross-section.

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