High-stability circuit board testing device

Abstract

The utility model discloses a high-stability circuit board testing device, which comprises a workbench, a lower testing needle arranged at the bottom of the workbench, a fixing frame arranged at the top of the workbench, a mounting plate connected to the bottom of the fixing frame in a lifting manner, an upper testing needle connected to the mounting plate, and a plurality of through holes formed in the top of the mounting plate, the top of each through hole is fixedly connected with a sleeve, a positioning column is inserted in each sleeve, the bottom of each positioning column is made of rubber, the mounting plate is matched with the structure of the testing jig, notches are formed in the two sides of the testing jig, a circuit board body is arranged in the testing jig, the positioning columns and the upper testing needles are arranged in a staggered mode, and the circuit board body is connected with the circuit board body. The upper testing needle is fixedly connected with the mounting plate, the positioning column is in sliding connection with the sleeve, and a testing jig is arranged at the top of the workbench and located at the bottom of the mounting plate. According to the device, the stability of the circuit board body in the testing process can be realized, so that the accuracy of the circuit board body testing is improved, and the circuit board body is prevented from being damaged.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of circuit board test, specifically to a high stability circuit board testing device. BACKGROUND

[0002] Circuit board testing is a critical step to ensure that printed circuit boards (PCB) and their components can work properly after manufacturing; this process can find design errors, manufacturing defects and component failures, etc. problems, so as to ensure the quality and reliability of the final product.

[0003] Circuit board testing needs to use FTC tester for testing when testing, and the circuit board needs to be placed directly into the jig of the FTC tester during the testing process, and then pressed by the top pressing plate, but the pressing position cannot be adjusted, and the fixed position of the circuit board cannot be adjusted, which affects the stability of the circuit board testing process, and needs to be improved. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a kind of high stability circuit board testing device to solve the problem that FTC tester cannot be fixed according to the fixed position of circuit board as described in the above background art.

[0005] To achieve the above purpose, the utility model provides the following technical scheme: a kind of high stability circuit board testing device, including workbench, the lower test needle of workbench bottom is provided, the fixed frame of workbench top is provided, the mounting plate of fixed frame bottom lift connection is provided, the upper test needle of mounting plate is connected, the multiple through holes of mounting plate top are provided, the sleeve of multiple through holes top is fixedly connected, the positioning column is inserted in the sleeve, positioning column and sleeve form sliding connection, positioning screw is connected on the sleeve, the test jig of workbench top is provided, and test jig is located at the bottom of mounting plate.

[0006] Preferably, the positioning column and the upper test needle are staggered, and the upper test needle is fixedly connected with the mounting plate.

[0007] Preferably, the bottom of the positioning column is made of rubber material, and the mounting plate and the test jig structure are matched.

[0008] Preferably, the test jig is provided with a notch on both sides, and the circuit board body is arranged inside the test jig.

[0009] Preferably, the workbench bottom side is fixedly connected with a negative pressure pump, and one end of the negative pressure pump is connected with a suction pipe.

[0010] Preferably, the suction pipe is provided with a plurality of branch pipes, and the branch pipe is provided with a one-way valve, and the top of the branch pipe is communicated with the bottom of the test jig.

[0011] Preferably, the top of the fixing frame is fixedly connected with an electric cylinder, one end of the electric cylinder is fixedly connected with the top side of the mounting plate.

[0012] Compared with the prior art, the utility model has the beneficial effects that:

[0013] (1) The device can realize stability in the circuit board body testing process, thereby improving the accuracy of the circuit board body testing and avoiding damage to the circuit board body.

[0014] (2) The device can lower the positioning column at the corresponding position according to the fixed pressing position of the circuit board body, so that the upper test needle can contact the circuit board body and the positioning column can press and fix the circuit board body after the mounting plate is lowered.

[0015] (3) The device can press and fix the circuit board body accurately during the lowering process of the mounting plate and the positioning column by setting the suction pipe on the bottom side of the test fixture, one end of the suction pipe being connected with the negative pressure pump. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a high-stability circuit board testing device structure schematic view of the utility model;

[0017] Figure 2 It is a high-stability circuit board testing device sectional view of the utility model;

[0018] Figure 3 It is a high-stability circuit board testing device of the utility model Figure 2 It is a high-stability circuit board testing device of the utility model

[0019] Figure 4 It is a high-stability circuit board testing device of the utility model test fixture plan view;

[0020] Figure 5 It is a high-stability circuit board testing device of the utility model mounting plate plan view.

[0021] In the drawing: 1, electric cylinder; 2, fixing frame; 3, mounting plate; 4, lower test needle; 5, test fixture; 6, workbench; 7, check valve; 8, suction pipe; 9, negative pressure pump; 10, circuit board body; 11, positioning column; 12, sleeve; 13, upper test needle; 14, positioning screw. DETAILED DESCRIPTION

[0022] Clearly, the described embodiments are merely a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments in the present utility model, all the other embodiments obtained by the ordinary skilled in the art without making creative labor belong to the scope of protection of the present utility model.

[0023] Please refer to Figures 1-5 The utility model provides a kind of technical scheme: a kind of high stability circuit board testing device, including workbench 6, workbench 6 bottom is provided with lower test needle 4, workbench 6 bottom side is fixedly connected with negative pressure pump 9, one end of negative pressure pump 9 is connected with adsorption tube 8, this structure can make adsorption tube 8 top produce suction force and be placed to the circuit board body 10 inside test fixture 5 suction fixation, to guarantee the stability of circuit board body 10, adsorption tube 8 is provided with multiple branch pipes, one-way valve 7 is provided on branch pipe, branch pipe top and test fixture 5 bottom are communicated, this structure avoids the phenomenon of air leakage in the process of adsorption tube 8 suction by one-way valve 7, workbench 6 top is provided with fixed frame 2, fixed frame 2 top is fixedly connected with electric cylinder 1, one end of electric cylinder 1 and mounting plate 3 top side are fixedly connected, this structure can push mounting plate 3 to drop automatically by electric cylinder 1, so that upper test needle 13 and positioning column 11 on the bottom of mounting plate 3 are connected with circuit board body 10, fixed frame 2 bottom is connected with mounting plate 3, mounting plate 3 is connected with upper test needle 13, mounting plate 3 top is provided with multiple through holes, multiple through holes top are fixedly connected with sleeve 12, positioning column 11 is inserted in sleeve 12, positioning column 11 and upper test needle 13 are staggered, upper test needle 13 is fixedly connected with mounting plate 3, this structure can realize positioning and testing work simultaneously, the bottom of positioning column 11 is rubber material, mounting plate 3 and test fixture 5 structure are matched, this structure can avoid that positioning column 11 causes damage to circuit board body 10, and also can guarantee the effect of pressing and fixing circuit board body 10, the both sides of test fixture 5 are provided with notch, test fixture 5 is provided with circuit board body 10, this structure is convenient for taking circuit board body 10 from test fixture 5 inside from the side of test fixture 5, positioning column 11 and sleeve 12 form sliding connection, sleeve 12 is connected with positioning screw 14, workbench 6 top is provided with test fixture 5, test fixture 5 is located at the bottom of mounting plate 3, the positioning screw 14 of the device can fix positioning column 11, so that positioning column 11 is located at different height.

[0024] Working principle: when using the high stability circuit board testing device, first, the circuit board body 10 to be tested is placed into the testing fixture 5, then the negative pressure pump 9 is started, the adsorption pipe 8 top generates suction force to adsorb and fix the circuit board body 10, the circuit board body 10 bottom is in close contact with the testing fixture 5 and the lower testing needle 4, then the electric cylinder 1 pushes the mounting plate 3 to descend, after the mounting plate 3 descends, the upper testing needle 13 at the mounting plate 3 bottom and the positioning column 11 are in contact with the circuit board body 10 top, so that the circuit board body 10 can be stably fixed for subsequent testing work, and the height of the positioning column 11 can also be adjusted according to requirements, when adjusting, the positioning screw 14 on the loose sleeve 12 is loosened, then the positioning column 11 is adjusted to the appropriate height, and then the positioning screw 14 is used to fix the positioning column 11 in the loose sleeve 12.

[0025] Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments or make equivalent replacement to part of the technical features, and any modification, equivalent replacement, improvement, etc. within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A high-stability circuit board testing device, comprising a workbench (6), wherein a lower test probe (4) is disposed at the bottom of the workbench (6), characterized in that: The workbench (6) is provided with a fixed frame (2) at the top, and a mounting plate (3) is connected to the bottom of the fixed frame (2) in a lifting manner. An upper test probe (13) is connected to the mounting plate (3). Multiple through holes are opened at the top of the mounting plate (3). A sleeve (12) is fixedly connected to the top of each of the multiple through holes. A positioning post (11) is inserted inside the sleeve (12). The positioning post (11) and the sleeve (12) form a sliding connection. A positioning screw (14) is connected to the sleeve (12). A test fixture (5) is provided at the top of the workbench (6). The test fixture (5) is located at the bottom of the mounting plate (3).

2. The high-stability circuit board testing device according to claim 1, characterized in that: The positioning post (11) and the upper test needle (13) are staggered, and the upper test needle (13) is fixedly connected to the mounting plate (3).

3. The high-stability circuit board testing device according to claim 1, characterized in that: The bottom of the positioning column (11) is made of rubber, and the mounting plate (3) is structurally compatible with the test fixture (5).

4. The high-stability circuit board testing device according to claim 3, characterized in that: The test fixture (5) has notches on both sides, and a circuit board (10) is installed inside the test fixture (5).

5. The high-stability circuit board testing device according to claim 1, characterized in that: A negative pressure pump (9) is fixedly connected to the bottom side of the workbench (6), and an adsorption tube (8) is connected to one end of the negative pressure pump (9).

6. The high-stability circuit board testing device according to claim 5, characterized in that: The adsorption tube (8) is provided with multiple branch tubes, and each branch tube is provided with a one-way valve (7). The top of each branch tube is connected to the bottom of the test fixture (5).

7. The high-stability circuit board testing device according to claim 1, characterized in that: The top of the fixed frame (2) is fixedly connected to an electric cylinder (1), and one end of the electric cylinder (1) is fixedly connected to the top side of the mounting plate (3).

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