A PCB testing fixture capable of fast positioning

Abstract

The utility model relates to automatic test technical field especially relates to a kind of quick positioning's PCB test fixture.The utility model provides such a kind of quick positioning's PCB test fixture, including organism and positioning mechanism, positioning mechanism for PCB positioning is slidably installed on organism, positioning mechanism includes cylinder two, support plate, connecting rod, bearing seat and slider etc.;Cylinder two is installed on organism, slider is slidably installed on both sides of organism, support plate is connected between same side slider, the output shaft of cylinder two is connected with the support plate of one side, connecting rod is rotatably installed on support plate, bearing seat is installed on organism.The utility model is driven support plate movement by cylinder two, and the self-adaptive clamping of PCB board of different length is carried out, cylinder one is driven to make wheel axle plate rotate, and four corners of PCB board are pushed by roller, to reach the effect of accurate positioning.

Description

Technical Field

[0001] This utility model relates to the field of automated testing technology, and in particular to a PCB testing fixture that can be quickly positioned. Background Technology

[0002] In modern electronics manufacturing, as electronic products become smaller and more multifunctional, the design of printed circuit boards (PCBs) is becoming increasingly complex, with a significant increase in component density. Traditional PCB test fixtures, due to their fixed design, struggle to adapt to the need for rapid switching between various PCB specifications and sizes, requiring tedious manual adjustments each time a test object is changed. This not only consumes a significant amount of time and reduces production efficiency, but also introduces errors during manual adjustments, affecting the consistency and accuracy of test results. Especially in high-volume production lines, frequent product model changes place even greater demands on the flexibility and responsiveness of testing equipment.

[0003] The limitations of traditional fixtures are mainly reflected in insufficient positioning accuracy, long changeover times, and low automation. For example, before performing functional or electrical performance tests, operators always need to spend extra time ensuring that the PCB is correctly and securely mounted on the fixture. Furthermore, due to differences between products, manual adjustments can lead to accelerated equipment wear, further increasing maintenance costs and downtime risks.

[0004] Therefore, there is an urgent need for a PCB test fixture that is easy to adapt and can be quickly positioned. Utility Model Content

[0005] In order to overcome the shortcomings of traditional fixtures, such as insufficient positioning accuracy and long changeover time, the present invention aims to provide a PCB test fixture that can be quickly positioned.

[0006] The technical solution of this utility model is as follows: This utility model provides a PCB test fixture that can be quickly positioned, including a body and a positioning mechanism. The positioning mechanism for PCB positioning is slidably mounted on the body. The positioning mechanism includes a wheel axle plate, rollers, cylinder one, cylinder two, a support plate, connecting rods, bearing seats, and sliders. Cylinder two is mounted on the body. Sliders are slidably mounted on both sides of the body. A support plate is connected between the sliders on the same side. The output shaft of cylinder two is connected to the support plate on one side. Connecting rods are rotatably mounted on the support plate. Bearing seats are mounted on the body. The connecting rods are rotatably connected to the bearing seats. Cylinder one is symmetrically mounted on the support plate. A wheel axle plate is connected to the output shaft of cylinder one. Rollers are rotatably mounted at both ends of the wheel axle plate.

[0007] Preferably, it also includes a slide block, which is installed inside the machine body, and the support plates are slidably connected to the slide block.

[0008] Preferably, it also includes limit rods, which are symmetrically installed on the support plate.

[0009] Preferably, the device also includes a lifting mechanism mounted on the body for raising and lowering the testing equipment. The lifting mechanism includes a mounting plate, a third cylinder, a second slide block, an electric slide rail, a motor, a threaded rod, a guide rod, and a detection plate. The mounting plate is mounted on the body, and a motor is mounted on one side of the mounting plate. A threaded rod is connected to the output shaft of the motor. Guide rods are symmetrically mounted on the mounting plate, and an electric slide rail is slidably mounted on the guide rods. The electric slide rail is threadedly connected to the threaded rod. A second slide block is slidably mounted on the electric slide rail, and a third cylinder is mounted on the second slide block. A detection plate is connected to the output shaft of the third cylinder.

[0010] Preferably, it also includes an elastic element, which is mounted on the wheel axle plate.

[0011] Preferably, the roller is covered with an anti-static jacket.

[0012] The beneficial effects of this utility model are:

[0013] This invention uses cylinder two to move the support plate, which adaptively clamps PCBs of different lengths. Cylinder one drives the wheel axle plate to rotate, causing the rollers to push the four corners of the PCB, thus achieving precise positioning.

[0014] This invention uses a motor to move an electric slide rail horizontally along a thread, and the electric slide rail allows for vertical adjustment of the slide block two, achieving the effect of quickly adjusting the position of the detection plate. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0016] Figure 2 This is a schematic diagram of the three-dimensional structure of the positioning mechanism of this utility model.

[0017] Figure 3 This is a top view of the three-dimensional structure of the positioning mechanism of this utility model.

[0018] Figure 4 This is a three-dimensional structural diagram of the lifting mechanism of this utility model.

[0019] The labels in the attached diagram are as follows: 1-Main body, 2-Positioning mechanism, 201-Wheel axle plate, 202-Roller, 203-Limit rod, 204-Cylinder 1, 205-Cylinder 2, 206-Bracket plate, 207-Slide 1, 208-Connecting rod, 209-Bearing seat, 210-Slider, 3-Lifting mechanism, 301-Cylinder 3, 302-Slide 2, 303-Electric slide rail, 304-Motor, 305-Threaded rod, 306-Guide rod, 307-Detection plate, 4-Elastic element, 5-Mounting plate. Detailed Implementation

[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0021] Example 1: A PCB test fixture for rapid positioning, such as Figure 1 , Figure 2 and Figure 3 As shown, the device includes a body 1 and a positioning mechanism 2. The positioning mechanism 2 is slidably mounted on the body 1 to achieve rapid clamping and precise positioning of the PCB board, ensuring that it is in the correct position during testing. The positioning mechanism 2 includes a wheel and axle plate 201, a roller 202, a first cylinder 204, a second cylinder 205, a support plate 206, a connecting rod 208, a bearing seat 209, and a slider 210. The second cylinder 205 is located on the front side of the inside of the body 1. Two sliders 210 are slidably mounted on both the left and right sides of the body 1. A support plate 206 is installed between every two sliders 210. The second cylinder 205 is connected to the left support plate 206 through an output shaft. The second cylinder 205 pushes the left support plate 206 to move, achieving adaptive clamping of PCBs of different lengths. The bottom of the support plate 206 is rotatably connected to the connecting rod 208. The middle part of the body 1 A bearing seat 209 is provided, and two connecting rods 208 are rotatably connected to the bearing seat 209. The connecting rods 208 are connected to the two side support plates 206, and synchronous movement is achieved through linkage with the bearing seat 209. A cylinder 204 is provided at the middle of both ends of the support plate 206. A wheel axle plate 201 is installed on the output shaft at the top of the cylinder 204. The wheel axle plate 201 has an L-shaped structure, and rollers 202 are rotatably connected to both ends. The rollers 202 contact the four corners of the PCB to achieve flexible positioning and prevent damage to the PCB surface. An anti-static sleeve is provided on the rollers 202. During the operation and movement of the PCB, electrostatic discharge may cause irreversible damage to the electronic components on the circuit board. The anti-static sleeve can effectively reduce or eliminate the accumulation of static electricity when the rollers 202 contact the PCB, thereby avoiding the potential threat of static electricity to sensitive components.

[0022] like Figure 2 and Figure 3As shown, it also includes a slide block 1, a limiting rod 203, and an elastic element 4. The slide block 207 is installed inside the machine body 1. The bottom of the slide block 207 is slidably connected to the support plate 206. The support plate 206 is provided with two limiting rods 203, both located on one side of the axle plate 201, to prevent the axle plate 201 from rotating too much and to ensure that the axle plate 201 and its rollers 202 move within a preset angle range, thus ensuring the accurate positioning of the PCB board. The axle plate 201 is equipped with an elastic element 4. When placing the PCB board, the elastic element 4 can absorb impact and vibration, preventing hard contact from causing physical damage to the PCB.

[0023] When it is necessary to test the positioning of PCBs of different sizes, the PCB is placed between the four wheel axle plates 201. The second cylinder 205 is activated to push the support plate 206 to move, and the slider 210 moves accordingly. At the same time, the connecting rod 208 connected to the support plate 206 is driven through the bearing seat 209, thereby driving the other support plate 206 to move synchronously. This achieves adaptive clamping of PCBs of different lengths, which greatly improves the versatility of the fixture, reduces the time for changing fixtures, and improves testing efficiency. Then, all the first cylinders 204 are activated to drive the wheel axle plates 201 to rotate, so that the rollers 202 on them move closer to the four corners of the PCB and push it to complete the precise positioning. This ensures that the PCB is firmly and accurately fixed in the predetermined position, which facilitates subsequent operations, reduces the need for manual intervention and errors by operators, and lowers labor costs.

[0024] Example 2: Based on Example 1, such as Figure 1 and Figure 4 As shown, the system also includes a lifting mechanism 3 mounted on the body 1, which can adjust the height of the detection module to accurately align it with different areas of the PCB. The lifting mechanism 3 includes a mounting plate 5, a cylinder 301, a slide block 302, an electric slide rail 303, a motor 304, a threaded rod 305, a guide rod 306, and a detection plate 307. The mounting plate 5 is mounted on the rear side of the body 1. The motor 304 is located in the middle of the right side of the mounting plate 5. A threaded rod 305 is mounted on the output shaft on the left side of the motor 304. Two guide rods 306 are located in the middle of the mounting plate 5 to provide guidance for the horizontal movement process and enhance the stability of the system operation. An electric slide rail 303 is slidably mounted on the guide rods 306, and the rear side of the electric slide rail 303 is threadedly connected to the threaded rod 305. A slide block 302 is slidably mounted on the electric slide rail 303. A cylinder 301 is mounted on the slide block 302. The detection plate 307 is connected to the bottom output shaft of the cylinder 301.

[0025] When the position of the detection plate 307 needs to be adjusted, the motor 304 is started. The motor 304 drives the threaded rod 305 to rotate, thereby causing the electric slide rail 303 connected to it to move and adjust horizontally along the thread, thus achieving precise positioning of the detection plate 307 in the X-axis direction. Activating the electric slide rail 303 allows the slide block 302 to be adjusted vertically under the action of the electric slide rail 303, further improving the adaptability of the detection plate 307 in the height direction. Thus, the detection plate 307 can flexibly adjust its position in both horizontal and vertical directions according to the size of different PCB boards and detection requirements, ensuring that it can be accurately aligned with the area to be tested, significantly improving detection efficiency and quality.

[0026] The above-described embodiments are merely preferred embodiments of the present invention, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications, improvements, and substitutions without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of the present invention should be determined by the appended claims.

Claims

1. A PCB test fixture capable of rapid positioning, comprising an organism (1) characterized in that, It also includes a positioning mechanism (2). The positioning mechanism (2) for PCB positioning is slidably mounted on the body (1). The positioning mechanism (2) includes a wheel axle plate (201), a roller (202), a cylinder one (204), a cylinder two (205), a support plate (206), a connecting rod (208), a bearing seat (209), and a slider (210). The cylinder two (205) is mounted on the body (1). Sliders (210) are slidably mounted on both sides of the body (1). The sliders (210) on the same side are connected by a support. The output shaft of cylinder 2 (205) is connected to the support plate (206) on one side. The support plate (206) is rotatably mounted with connecting rods (208). The machine body (1) is mounted with bearing seats (209). The connecting rods (208) are rotatably connected to the bearing seats (209). Cylinder 1 (204) is symmetrically mounted on the support plate (206). The output shaft of cylinder 1 (204) is connected with a wheel axle plate (201). Rollers (202) are rotatably mounted at both ends of the wheel axle plate (201).

2. The PCB test fixture for rapid positioning according to claim 1, characterized in that, It also includes a slide (207), which is installed inside the body (1), and the support plate (206) is slidably connected to the slide (207).

3. The PCB test fixture for rapid positioning according to claim 2, characterized in that, It also includes a limit rod (203), which is symmetrically installed on the bracket plate (206).

4. A PCB test fixture for rapid positioning according to claim 3, characterized in that, It also includes a lifting mechanism (3) installed on the body (1) for lifting the testing equipment. The lifting mechanism (3) includes a mounting plate (5), a cylinder three (301), a slide two (302), an electric slide rail (303), a motor (304), a threaded rod (305), a guide rod (306), and a testing plate (307). The mounting plate (5) is installed on the body (1), and a motor (304) is installed on one side of the mounting plate (5). The output shaft of the motor (304) A threaded rod (305) is connected to the upper part of the mounting plate (5). Guide rods (306) are symmetrically mounted on the mounting plate (5). Electric slide rails (303) are slidably mounted on the guide rods (306). Electric slide rails (303) are threadedly connected to threaded rods (305). Slide seat two (302) is slidably mounted on electric slide rails (303). Cylinder three (301) is mounted on slide seat two (302). Detection plate (307) is connected to the output shaft of cylinder three (301).

5. A PCB test fixture for rapid positioning according to claim 4, characterized in that, It also includes an elastic element (4), which is installed on the wheel axle plate (201).

6. A PCB test fixture for rapid positioning according to claim 5, characterized in that, The roller (202) is covered with an anti-static jacket.

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