A fixture device for PCB board detection

Abstract

The utility model provides a clamp device for PCB board detection, which relates to the technical field of PCB board detection, and comprises a detection body and a placement frame arranged inside the detection body. A limit assembly is arranged inside the placement frame. The device is provided with two limit plates. During use, the opposite sides of the PCB board are brought into contact with the upper ends of the two limit plates, and the adjacent edges of the two limit plates are arranged in an arc shape, so that the two limit plates are pushed by the PCB board and pushed in opposite directions. The two limit plates are made to fit the opposite sides of the PCB board through the elastic force of a plurality of first springs, so that the PCB board is fixed, and the fixing of the PCB board tends to the position of the center of the two limit plates. Two fixing groups are used to apply a fixing force in a vertical direction to the PCB board, so as to further improve the fixing effect of the PCB board, so that the detection accuracy of the overall device is higher.

Description

Technical Field

[0001] The utility model relates to the technical field of PCB board detection, in particular to a clamp device used for PCB board detection. Background Art

[0002] PCB board inspection refers to various tests on printed circuit boards to ensure that their quality and performance meet the specifications. PCB is an indispensable component of electronic equipment, responsible for connecting and transmitting electrical signals, power and data. However, due to errors in the manufacturing process or the influence of the external environment, PCB may have various defects, resulting in performance degradation or malfunction of electronic equipment. The main purpose of PCB board inspection is to find and eliminate possible defects or faults to ensure product quality and reliability. This usually includes appearance inspection, size inspection, electrical performance inspection and reliability inspection. Among them, the appearance inspection mainly checks whether there are surface defects such as scratches, oxidation, discoloration, etc. on the PCB board surface, the size inspection is to check whether the size of the PCB board meets the design requirements, and the electrical performance inspection is to check the electrical performance indicators such as conductivity and insulation of the PCB board; while the reliability inspection is to check the reliability indicators of the PCB board under different environmental conditions.

[0003] In the existing process of PCB board detection, special PCB board detection equipment is usually required, which generally includes a driving member, a detection member, a fixing frame and a placement frame. During use, the driving member is generally set on the fixing frame, and the driving member is generally a cylinder. The PCB board to be detected is placed inside the placement frame, and the driving member is started, and the detection member is driven to move downward by the driving member, and the detection member contacts the PCB board to achieve detection of the PCB board. The detection member is mainly a flying probe test device, which contacts the test points on the PCB board through the flying probe to measure the connection status of the circuit to detect possible open circuit or short circuit problems. However, in the existing detection process, when the size of the PCB board is inconsistent, the position of the PCB board needs to be manually adjusted during the PCB board detection process, and the position of the PCB board may be offset, which causes the detection result to deviate, affecting the final detection accuracy.

[0004] Therefore, it is necessary to provide a new fixture device for PCB board detection to solve the above technical problems. Utility Model Content

[0005] In order to solve the above technical problems, the utility model provides a fixture device for PCB board detection.

[0006] The fixture device for PCB board detection provided by the utility model comprises a detection body and a placement frame arranged inside the detection body, wherein a limit position component is arranged inside the placement frame;

[0007] The limit assembly includes a limit plate and a first spring. Two limit plates are provided. The opposite sides of the two limit plates are in contact with the inner wall of the placement frame. The edges of the adjacent sides of the two limit plates are arranged in an arc shape. A fixing group is arranged inside the two limit plates. The two fixing groups are used to apply a fixing force in a vertical direction to the PCB board. A plurality of first springs are provided. The plurality of first springs are respectively arranged on the opposite sides of the two limit plates. The opposite ends of the plurality of first springs away from the two limit plates are respectively fixedly connected to the opposite inner walls of the placement frame.

[0008] Preferably, the fixing group includes a movable plate, a limit block, a second spring and a pressing plate, the limit blocks are provided with two, the two limit blocks are respectively fixedly arranged on opposite sides of the movable plate, the opposite inner walls of the limit plate are provided with limit grooves, the two limit blocks are respectively movably arranged in the two limit grooves, the second springs are provided with a plurality of, the upper ends of the plurality of second springs are fixedly connected to the bottom end of the movable plate, the ends of the plurality of second springs away from the movable plate are fixedly connected to the bottom end of the pressing plate, and the bottom edge of the pressing plate is arranged in an arc shape.

[0009] Preferably, the detection body comprises a driving member, a detection member and a fixing frame, the bottom end of the driving member is fixedly connected to the upper end of the fixing frame, and the output end of the driving member is fixedly connected to the upper end of the detection member.

[0010] Preferably, the bottom end of the fixing frame is fixedly connected with a control body.

[0011] Preferably, a push handle is fixedly connected to the upper end of the movable plate.

[0012] Preferably, a telescopic rod is provided at the bottom end of the placement frame, and the upper end of the telescopic rod is movably extended to the inside of the placement frame.

[0013] Compared with the related art, the fixture device for PCB board detection provided by the utility model has the following beneficial effects:

[0014] The device is provided with two limit plates. During use, the opposite sides of the PCB board are brought into contact with the upper ends of the two limit plates, and the adjacent edges of the two limit plates are provided in an arc shape, so that the PCB board pushes the two limit plates to push the two limit plates in opposite directions. Since the plurality of first springs are respectively provided on the opposite sides of the two limit plates, and the opposite ends of the plurality of first springs away from the two limit plates are respectively fixedly connected to the opposite inner side walls of the placement frame, the elastic force of the plurality of first springs makes the two limit plates fit the opposite sides of the PCB board, thereby fixing the PCB board, and the fixing of the PCB board tends to the position of the center of the two limit plates. The two fixing groups are used to apply a fixing force in a vertical direction to the PCB board, thereby further improving the fixing effect of the PCB board, and making the detection accuracy of the overall device higher. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the overall structure of the fixture device for PCB board testing provided by the utility model;

[0016] Figure 2 A schematic diagram of another viewing angle of the fixture device for PCB board detection provided by the utility model;

[0017] Figure 3 A schematic diagram of a limit assembly provided by the utility model;

[0018] Figure 4 A schematic diagram of a fixing group provided by the utility model;

[0019] Figure 5 This is a disassembled diagram of the fixing group provided by the utility model.

[0020] Numbers in the figure: 1, fixed frame; 2, driving member; 3, detection member; 4, placement frame; 5, control body; 6, telescopic rod; 7, limit plate; 8, limit block; 9, pressing plate; 10, first spring; 11, pushing handle; 12, second spring; 13, movable plate. DETAILED DESCRIPTION

[0021] The utility model is further described below in conjunction with the accompanying drawings and implementation modes.

[0022] Please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 as well as Figure 5 ,in, Figure 1 This is a schematic diagram of the overall structure of the fixture device for PCB board testing provided by the utility model; Figure 2 A schematic diagram of another viewing angle of the fixture device for PCB board detection provided by the utility model; Figure 3A schematic diagram of a limit assembly provided by the utility model; Figure 4 A schematic diagram of a fixing group provided by the utility model; Figure 5 This is a disassembled diagram of the fixing group provided by the utility model.

[0023] In the specific implementation process, Figure 1-Figure 5 As shown, a fixture device for PCB board detection includes a detection body and a placement frame 4 arranged inside the detection body, and a limit position component is arranged inside the placement frame 4;

[0024] The limiting assembly includes a limiting plate 7 and a first spring 10, two limiting plates 7 are provided, the opposite sides of the two limiting plates 7 are in contact with the inner side wall of the placement frame 4, the edges of the adjacent sides of the two limiting plates 7 are set in an arc shape, and the interiors of the two limiting plates 7 are provided with a fixing group, and the two fixing groups are used to apply a fixing force in a vertical direction to the PCB board. A plurality of first springs 10 are provided, and the plurality of first springs 10 are respectively arranged on the opposite sides of the two limiting plates 7, and the opposite ends of the plurality of first springs 10 away from the two limiting plates 7 are respectively fixedly connected to the opposite inner side walls of the placement frame 4;

[0025] The fixing group includes a movable plate 13, a limit block 8, a second spring 12 and a pressing plate 9. Two limit blocks 8 are provided. The two limit blocks 8 are respectively fixedly arranged on opposite sides of the movable plate 13. Limit grooves are provided on the opposite inner side walls of the limit plate 7. The two limit blocks 8 are respectively movably arranged in the two limit grooves. A plurality of second springs 12 are provided. The upper ends of the plurality of second springs 12 are fixedly connected to the bottom end of the movable plate 13. The ends of the plurality of second springs 12 away from the movable plate 13 are fixedly connected to the bottom end of the pressing plate 9. The bottom edge of the pressing plate 9 is set in an arc shape. The upper end of the movable plate 13 is fixedly connected with a push handle 11.

[0026] In the specific use process, after the PCB board is fixed by the two limit plates 7, the movable plate 13 is driven to move by pulling the push handle 11, and the movement of the movable plate 13 drives the multiple second springs 12 below to move, and the multiple second springs 12 drive the pressing plate 9 below to move. Since the edge of the pressing plate 9 is set in an arc shape, the pressing plate 9 moves to the top of the PCB board, and the pushing force of the second spring 12 makes the pressing plate 9 fit on the top of the PCB board, thereby further fixing the PCB board. Among them, the movement of the pressing plate 9 can be achieved by pulling the second spring 12 on the one hand, and can also be achieved by manual movement on the other hand;

[0027] The detection body includes a driving member 2, a detection member 3 and a fixing frame 1. The bottom end of the driving member 2 is fixedly connected to the top end of the fixing frame 1, the output end of the driving member 2 is fixedly connected to the top end of the detection member 3, and the bottom end of the fixing frame 1 is fixedly connected to a control body 5.

[0028] The detection device 3 mentioned above is mainly a flying probe test device, which measures the connection of the circuit by contacting the flying probe with the test points on the PCB board to detect possible open circuit or short circuit problems;

[0029] A telescopic rod 6 is provided at the bottom end of the placement frame 4, and the upper end of the telescopic rod 6 is movably extended to the inside of the placement frame 4;

[0030] In actual use, the released PCB board can be pushed out of the placement frame 4 by starting the telescopic rod 6 .

[0031] The working principle provided by the utility model is as follows: during the use of the device, when fixing the PCB board, two limit plates 7 are set. During the use, the opposite sides of the PCB board are contacted with the upper ends of the two limit plates 7, and the adjacent edges of the two limit plates 7 are set to arc shapes, so that the two limit plates 7 are pushed by the PCB board to push the two limit plates 7 in opposite directions. Since the multiple first springs 10 are respectively set on the opposite sides of the two limit plates 7, the opposite ends of the multiple first springs 10 away from the two limit plates 7 are respectively fixedly connected to the opposite inner side walls of the placement frame 4, and the elastic force of the multiple first springs 10 makes the bottom edges of the two limit plates 7 fit the opposite sides of the PCB board, so as to fix the PCB board;

[0032] Subsequently, after the PCB board is fixed by the two limit plates 7, the movable plate 13 is driven to move by pulling the push handle 11, and the movement of the movable plate 13 drives the multiple second springs 12 below to move, and the multiple second springs 12 drive the pressing plate 9 below to move. Since the edge of the pressing plate 9 is set to be an arc shape, the pressing plate 9 moves to the top of the PCB board, and the pushing force of the second springs 12 makes the pressing plate 9 fit above the PCB board, thereby further fixing the PCB board.

[0033] The circuits and controls involved in the present invention are all prior art and will not be described in detail here.

[0034] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A fixture device for PCB board detection, characterized in that: It comprises a detection body and a placement frame (4) arranged inside the detection body, wherein a limit position component is arranged inside the placement frame (4); The limiting assembly comprises a limiting plate (7) and a first spring (10), wherein two limiting plates (7) are provided, and the opposite sides of the two limiting plates (7) are in contact with the inner side wall of the placement frame (4), and the edges of the adjacent sides of the two limiting plates (7) are arranged in an arc shape, and the interiors of the two limiting plates (7) are both provided with a fixing group, and the two fixing groups are used to apply a fixing force in a vertical direction to the PCB board, and a plurality of the first springs (10) are provided, and the plurality of first springs (10) are respectively arranged on the opposite sides of the two limiting plates (7), and the opposite ends of the plurality of first springs (10) away from the two limiting plates (7) are respectively fixedly connected to the opposite inner side walls of the placement frame (4).

2. The fixture device for PCB board detection according to claim 1 is characterized in that: The fixing group comprises a movable plate (13), a limit block (8), a second spring (12) and a pressing plate (9); the limit blocks (8) are provided with two pieces, and the two limit blocks (8) are respectively fixedly arranged on opposite sides of the movable plate (13); the opposite inner side walls of the limit plate (7) are provided with limit grooves, and the two limit blocks (8) are respectively movably arranged in the two limit grooves; the second spring (12) is provided with a plurality of pieces, the upper ends of the plurality of second springs (12) are fixedly connected to the bottom end of the movable plate (13), and the ends of the plurality of second springs (12) away from the movable plate (13) are fixedly connected to the bottom end of the pressing plate (9); and the bottom edge of the pressing plate (9) is arranged in an arc shape.

3. The fixture device for PCB board detection according to claim 2 is characterized in that: The detection body comprises a driving member (2), a detection member (3) and a fixing frame (1); the bottom end of the driving member (2) is fixedly connected to the top end of the fixing frame (1); and the output end of the driving member (2) is fixedly connected to the top end of the detection member (3).

4. The fixture device for PCB board detection according to claim 3 is characterized in that: The bottom end of the fixing frame (1) is fixedly connected to a control body (5).

5. The fixture device for PCB board detection according to claim 4 is characterized in that: The upper end of the movable plate (13) is fixedly connected with a pushing handle (11).

6. The fixture device for PCB board detection according to claim 5, characterized in that: A telescopic rod (6) is provided at the bottom end of the placement frame (4), and the upper end of the telescopic rod (6) is movably extended to the inside of the placement frame (4).

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