PCBA board test fixture

Abstract

The utility model relates to the technical field of PCBA (Printed Circuit Board Assembly) boards, in particular to a PCBA board test fixture, which comprises a placement table, four transverse clamping assemblies arranged on the upper surface of the placement table, longitudinal clamping assemblies arranged on the upper sides of the transverse clamping assemblies, two driving assemblies arranged on the lower sides of the transverse clamping assemblies, the longitudinal clamping assembly comprises an L-shaped plate, one end of the L-shaped plate is fixedly connected with the limiting plate, the other end of the L-shaped plate and a sliding sleeve are provided with a pressing rod, the bottom end of the pressing rod is fixedly connected with a pressing piece, a lifting plate is fixedly installed at the top of the pressing rod, and a spring is fixedly connected between the pressing piece and the L-shaped plate. The two driving assemblies are arranged in a crossed mode, an electric sliding table assembly is arranged at the bottom of the containing table, and a detection assembly is arranged at the top of the containing table. Through the synergistic effect of the transverse clamping assembly and the longitudinal clamping assembly, PCBA boards of different sizes and thicknesses can be accurately fixed, the testing efficiency is improved, and high stability and precision in the testing process are ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to PCBA board technical field, concretely is a kind of PCBA board test fixture. BACKGROUND

[0002] PCBA is the abbreviation of English Printed Circuit Board+Assembly, that is, on PCB empty board, first through SMT (surface mount technology) piece, then through the production process of DIP (dual in-line package technology) plug-in, in short, PCBA board is the PCB board that electronic component has been welded, assembled, PCBA board is a kind of printed circuit board, and it has wide application in modern industrial production. Its manufacturing process includes printing circuit pattern on insulating substrate, and forming conductor as wiring through electroplating process, so as to realize the connection of electronic components.

[0003] In the prior art, in the process of producing PCBA, many artificial or unpredictable factors can cause the product to be unqualified. In order to ensure high quality output and maintain the stability of quality, detection work becomes an indispensable part of production process. Specifically, for the PCBA board after manufacturing, it is necessary to strictly test the power supply part, port and other functions.

[0004] However, the clamping device of the current PCBA board test fixture is usually designed according to fixed specifications, which means that when facing different sizes and types of PCBA boards, the corresponding test fixture needs to be frequently replaced, which not only increases the operation complexity, but also directly leads to low test efficiency, and affects the overall production progress. Therefore, the utility model provides a kind of PCBA board test fixture to solve the above problems. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a kind of PCBA board test fixture to solve the problems raised in the above background technology.

[0006] To achieve the above object, the utility model provides the following technical scheme: a kind of PCBA board test fixture, comprising: placement table, four horizontal clamping components are arranged on the upper surface of placement table, four horizontal clamping components are distributed in square, the upper side of horizontal clamping component is provided with longitudinal clamping component, and the lower side of horizontal clamping component is provided with two drive components;

[0007] Horizontal clamping component includes limit plate that can slide on the surface of placement table, and the side of limit plate is fixedly connected with antiskid soft pad;

[0008] Longitudinal clamping component includes L-shaped plate, one end of L-shaped plate is fixedly connected with limit plate, the other end of L-shaped plate is provided with pressing rod with sliding sleeve, the bottom end of pressing rod is fixedly connected with pressing piece, the top of pressing rod is fixedly installed with pull plate, and spring is fixedly connected between pressing piece and L-shaped plate.

[0009] The two drive assemblies are arranged in a cross shape, the bottom of the placing table is provided with an electric sliding table assembly, and the top of the placing table is provided with a detection assembly.

[0010] Preferably, the drive assembly comprises a hand wheel, the hand wheel is fixedly connected to the upper end of a connecting shaft, a drive gear is fixedly sleeved on the lower end of the connecting shaft, the connecting shaft is rotatably sleeved in the placing table, and a driven gear is engaged on one side of the drive gear.

[0011] Preferably, the driven gear is fixedly connected to one end of a threaded rod, the threaded rod is rotatably sleeved in support seats on both sides, the support seat is fixedly connected to the lower surface of the placing table at the top, and two threads are formed in the threaded rod and have opposite rotation directions.

[0012] Preferably, a sliding hole is formed in the upper surface of the placing table, a sliding rod is sleeved in the sliding hole, the upper end of the sliding rod is fixedly connected to a limiting plate, the lower end of the sliding rod is fixedly connected to a connecting block, and the connecting block is symmetrically arranged about the threaded rod and is threadedly sleeved on the threaded rod.

[0013] Preferably, a limiting hole is formed in the end of the L-shaped plate away from the limiting plate, the limiting hole is slidably connected between the limiting hole and a pressing rod, the pressing rod is linearly arranged about one side of the L-shaped plate, and the pressing plate is made of soft silica gel.

[0014] Preferably, the detection assembly comprises a detection pressing plate, the upper surface of the detection pressing plate is fixedly connected to the output end of an electric cylinder, the non-output end of the electric cylinder is fixedly connected to one end of a support frame, the other end of the support frame is fixedly connected to a bottom plate, the electric sliding table assembly is fixedly installed on the upper surface of the bottom plate, and the placing table is fixedly connected to the upper surface of a sliding block in the electric sliding table assembly.

[0015] Compared with the prior art, the utility model has the advantages that:

[0016] 1. Through the cooperation of the horizontal clamping assembly and the vertical clamping assembly, different sizes and thicknesses of PCBA boards can be accurately fixed. The horizontal clamping assembly adjusts the distance between the limiting plates by the drive assembly to adapt to various sizes, and the vertical clamping assembly realizes the compression and fixation of PCBA boards of different thicknesses through the cooperation of the spring and the pressing plate. This design enables a set of jigs to complete the efficient testing of PCBA boards of various specifications, significantly improving the testing efficiency and equipment utilization.

[0017] 2. The anti-skid soft pad increases the friction between the PCBA board and the pressing plate, avoiding sliding during clamping; the combination of the spring and the pressing plate further enhances the stability of clamping, ensuring that the PCBA board does not displace during movement and testing. In addition, the precise cooperation of the electric sliding table assembly and the detection assembly ensures the positional accuracy of the PCBA board during testing and the reliability of the test results, thereby improving the stability and precision of the overall testing. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is the whole structure schematic view of the utility model;

[0019] Figure 2 It is the inside structure overhead schematic view of the utility model;

[0020] Figure 3 It is the whole structure bottom view schematic view of the utility model;

[0021] Figure 4 It is the utility model Figure 3 The structure enlarged schematic view of A in the middle.

[0022] In the drawing: 1, the placement platform; 2, the limiting plate; 3, the antiskid soft pad; 4, the L-shaped plate; 5, the pressing rod; 6, the pressing piece; 7, the spring; 8, the detection assembly; 9, the hand wheel; 10, the connecting shaft; 11, the driving gear; 12, the driven gear; 13, the threaded rod; 14, the support seat; 15, the sliding hole; 16, the sliding rod; 17, the connecting block; 18, the pull plate; 19, the limiting hole; 20, the detection pressing plate; 21, the electric cylinder. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical scheme of the utility model to carry out clear, complete description, and the advantage is more clear and clear, the following combining the drawings to the utility model embodiment carries out further detailed explanation.Should understand, the specific embodiment described here is a part of the embodiment of the utility model, instead of all the embodiments, is used to explain the embodiment of the utility model, and is not used to limit the embodiment of the utility model, all other embodiments obtained by the ordinary skill in the art without doing the premise of creative labor, belong to the scope of the protection of the utility model.

[0024] Embodiment one: please refer to Figures 1 to 4This utility model provides a technical solution: a PCBA board testing fixture, comprising: a placement stage 1 for placing PCBA boards; four transverse clamping components arranged in a square on the upper surface of the placement stage 1; longitudinal clamping components above the transverse clamping components for longitudinally limiting and fixing the PCBA boards; two driving components below the transverse clamping components for adjusting the transverse clamping components; each transverse clamping component includes a limiting plate 2 that can slide on the surface of the placement stage 1; an anti-slip pad 3 is fixedly connected to one side of the limiting plate 2 to increase the friction between the limiting plate 2 and the PCBA board; and an L-shaped plate 4, one end of which is connected to the limiting plate 2. The positioning plate 2 is fixedly connected, and the other end of the L-shaped plate 4 is fitted with a pressure rod 5. The L-shaped plate 4 limits the pressure rod 5. The bottom end of the pressure rod 5 is fixedly connected to the pressure plate 6. The pressure plate 6 can further limit and press the upper surface of the PCBA board to prevent it from shifting during movement. A lifting plate 18 is fixedly installed on the top of the pressure rod 5. A spring 7 is fixedly connected between the pressure plate 6 and the L-shaped plate 4. By pulling the lifting plate 18 and deforming the spring 7, the height of the pressure plate 6 can be easily adjusted, which facilitates pressing PCBA boards of different thicknesses. The two drive components are arranged in a cross shape. An electric slide assembly is set at the bottom of the placement stage 1. The electric slide assembly facilitates the transfer of the placement stage 1 to the detection assembly 8. The detection assembly 8 is set at the top of the placement stage 1. The detection assembly 8 is used to perform functional testing on the PCBA board.

[0025] The worker places the PCBA board on the upper surface of the placement table 1. Driven by the drive assembly, the limiting plates 2 in the transverse clamping assembly slide on the surface of the placement table 1, thereby adjusting the distance between the limiting plates 2. This facilitates the handling of PCBA boards of different sizes. The PCBA board is initially clamped by the contact between the anti-slip pad 3 on one side of the limiting plate 2 and the PCBA board. The anti-slip pad 3 also provides anti-slip properties, improving clamping stability. While the limiting plates 2 move, the longitudinal clamping assembly further clamps and fixes the board. Specifically, by pulling the lifting plate 18 upwards, the lifting plate 18 moves the pressure rod 5, thereby pressing... Rod 5 synchronously drives the pressure plate 6 to move, and the pressure plate 6 compresses the spring 7. So when the anti-slip pad 3 contacts and clamps the PCBA board, the lifting plate 18 is released. Under the reverse elastic force of the spring 7, the pressure rod 5 drives the pressure plate 6 to press against the edge of the PCBA board surface, thereby further clamping and fixing it. Then, the electric slide assembly transports the placement platform 1 to directly below the detection assembly 8, and then the detection assembly 8 performs further detection. After the test is completed, the electric slide assembly is restarted to continue transporting the placement platform 1. In this way, the PCBA board that has been tested is transported to the next process, realizing the efficient testing function of the PCBA board.

[0026] Example 2: Based on Example 1, the drive assembly includes a handwheel 9, which is fixedly connected to the upper end of a connecting shaft 10. A drive gear 11 is fixedly sleeved on the lower end of the connecting shaft 10. Rotation of the handwheel 9 facilitates the rotation of the drive gear 11 via the connecting shaft 10. The connecting shaft 10 is rotatably sleeved within a placement platform 1, on which a limit bearing is fixedly installed. The connecting shaft 10 is rotatably sleeved within the bearing, thereby improving the stability of the connecting shaft 10's rotation. A driven gear 12 meshes with one side of the drive gear 11, and the drive gear 11 and driven gear 12 mesh and transmit power. One end of the threaded rod 13 is fixedly connected to the support seat 14. The two sides of the threaded rod 13 are rotatably fitted into the support seat 14. The support seat 14 improves the stability of the rotation of the threaded rod 13. The top of the support seat 14 is fixedly connected to the lower surface of the placement platform 1. The threaded rod 13 has two threads with opposite directions of rotation. The upper surface of the placement platform 1 has a sliding hole 15. A sliding rod 16 is fitted inside the sliding hole 15. The sliding hole 15 limits the sliding rod 16. The upper end of the sliding rod 16 is fixedly connected to the limiting plate 2. The lower end of the sliding rod 16 is fixedly connected to the connecting block 17. The connecting block 17 is symmetrically arranged about the threaded rod 13 and threadedly fitted onto the threaded rod 13.

[0027] Before inspecting the PCBA board, the operator places the PCBA board on the upper surface of the placement table 1. At this time, the distance between the limiting plates 2 is adjusted according to the size of the PCBA board. By turning the handwheel 9, the connecting shaft 10 is driven to rotate under the limit of the placement table 1, thereby causing the connecting shaft 10 to drive the drive gear 11 to rotate. The drive gear 11 drives the threaded rod 13 to rotate under the limit of the support seat 14 through meshing with the driven gear 12. Since the connecting blocks 17 are symmetrically arranged about the threaded rod 13 and are threadedly connected to the threaded rod 13, the connecting blocks 17 on the threaded rod 13 can move towards or away from each other under the drive of the threaded rod 13. The connecting blocks 17 can move along the axis of the threaded rod 13 through the cooperation of the sliding rod 16 and the sliding hole 15. Then, through the sliding rod 16, the two limiting plates 2 are driven to move towards or away from each other, thereby realizing the adjustment of the distance between the two limiting plates 2, so as to adapt to the clamping and fixing of PCBA boards of different sizes.

[0028] Example 3: Based on Example 2, a limiting hole 19 is opened at the end of the L-shaped plate 4 away from the limiting plate 2. The limiting hole 19 is slidably connected to the pressure rod 5. The limiting hole 19 limits the pressure rod 5. The pressure rod 5 is arranged in a linear array about one side of the L-shaped plate 4. The pressure plate 6 is made of soft silicone to avoid damaging the PCBA board. The detection component 8 includes a detection pressure plate 20. The upper surface of the detection pressure plate 20 is fixedly connected to the output end of the electric cylinder 21. The detection pressure plate 20 and the electric cylinder 21 are electrically connected to an external control device. The non-output end of the electric cylinder 21 is fixedly connected to one end of the support frame. The support frame provides stable support for the electric cylinder 21. The other end of the support frame is fixedly connected to the base plate. The electric slide assembly is fixedly installed on the upper surface of the base plate. The placement platform 1 is fixedly connected to the upper surface of the slider in the electric slide assembly. The electric slide assembly is electrically connected to an external control device.

[0029] While the limiting plate 2 clamps and fixes the PCBA board, the lifting plate 18 is pulled upward, causing the lifting plate 18 to pull the pressure rod 5 upward within the limiting hole 19, thereby lifting the pressure plate 6. When the anti-slip pad 3 of the limiting plate 2 contacts the PCBA board, the lifting plate 18 is released. Under the reverse elastic force of the spring 7, the pressure rod 5 drives the pressure plate 6 to press against the edge of the upper surface of the PCBA board, thereby further clamping and fixing it. This allows for the fixing of PCBA boards of different thicknesses. After clamping and fixing, the electric slide assembly is started by the external control device, causing the slider on it to move the placement stage 1 to directly below the detection pressure plate 20. Then, the output end of the electric cylinder 21 is extended, so that the detection pressure plate 20 tests the PCBA board on the placement stage 1. After the test is completed, the output end of the electric cylinder 21 extends, and the electric slide assembly is started again, causing the slider on it to move the placement stage 1 to the next process, thus realizing the efficient testing function of the PCBA board.

[0030] In actual use, the horizontal and vertical clamping components on the placement stage 1 achieve precise fixation of PCBA boards of different sizes and thicknesses. The horizontal clamping component consists of a limiting plate 2 and an anti-slip pad 3. The spacing of the limiting plates 2 is adjusted by the drive component to adapt to the size of the PCBA board, and the anti-slip pad 3 increases friction to improve stability. The vertical clamping component uses a lifting plate 18, a pressure rod 5, a spring 7, and a pressure plate 6 to press and fix the upper surface edge of the PCBA board, ensuring that it does not shift during movement. The electric slide assembly transports the placement stage 1 to the bottom of the detection assembly 8, and the detection pressure plate 20 performs functional testing on the PCBA board under the drive of the electric cylinder 21. After the test is completed, the electric slide assembly transports the placement stage 1 to the next process, thereby achieving efficient and stable PCBA board testing.

[0031] 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 PCBA board testing fixture, comprising a placement stage (1), characterized in that: The upper surface of the placement platform (1) is provided with four horizontal clamping components. The four horizontal clamping components are arranged in a square. A vertical clamping component is provided on the upper side of the horizontal clamping component, and two driving components are provided on the lower side of the horizontal clamping component. The lateral clamping assembly includes a limiting plate (2) that can slide on the surface of the placement table (1), and an anti-slip pad (3) is fixedly connected to one side of the limiting plate (2); The longitudinal clamping assembly includes an L-shaped plate (4), one end of which is fixedly connected to a limiting plate (2), and the other end of which is slidably fitted with a pressure rod (5). The bottom end of the pressure rod (5) is fixedly connected to a pressure plate (6), and a lifting plate (18) is fixedly installed on the top of the pressure rod (5). A spring (7) is fixedly connected between the pressure plate (6) and the L-shaped plate (4). The two drive components are arranged in a cross shape. An electric slide assembly is provided at the bottom of the placement platform (1), and a detection assembly (8) is provided at the top of the placement platform (1).

2. The PCBA board testing fixture according to claim 1, characterized in that: The drive assembly includes a handwheel (9), which is fixedly connected to the upper end of the connecting shaft (10). A drive gear (11) is fixedly sleeved on the lower end of the connecting shaft (10). The connecting shaft (10) is rotatably sleeved in the placement platform (1). A driven gear (12) meshes on one side of the drive gear (11).

3. A PCBA board testing fixture according to claim 2, characterized in that: The driven gear (12) is fixedly connected to one end of the threaded rod (13). The two sides of the threaded rod (13) are rotatably fitted into the support seat (14). The top of the support seat (14) is fixedly connected to the lower surface of the placement platform (1). The threaded rod (13) has two threads with opposite directions of rotation.

4. A PCBA board testing fixture according to claim 3, characterized in that: The upper surface of the placement platform (1) is provided with a sliding hole (15), and a sliding rod (16) is fitted inside the sliding hole (15). The upper end of the sliding rod (16) is fixedly connected to the limiting plate (2), and the lower end of the sliding rod (16) is fixedly connected to the connecting block (17). The connecting block (17) is symmetrically arranged about the threaded rod (13) and threadedly fitted onto the threaded rod (13).

5. A PCBA board testing fixture according to claim 1, characterized in that: The L-shaped plate (4) has a limiting hole (19) at the end away from the limiting plate (2). The limiting hole (19) is slidably connected to the pressure rod (5). The pressure rod (5) is arranged in a linear array about one side of the L-shaped plate (4). The pressure plate (6) is made of soft silicone.

6. A PCBA board testing fixture according to claim 1, characterized in that: The detection component (8) includes a detection plate (20), the upper surface of the detection plate (20) is fixedly connected to the output end of the electric cylinder (21), the non-output end of the electric cylinder (21) is fixedly connected to one end of the support frame, the other end of the support frame is fixedly connected to the base plate, the electric slide assembly is fixedly installed on the upper surface of the base plate, and the placement platform (1) is fixedly connected to the upper surface of the slider in the electric slide assembly.

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