PCB automatic positioning detection jig

Abstract

The utility model relates to the PCB automatic positioning detection field, and discloses a PCB automatic positioning detection tool comprising a box body, the top side of the box body is provided with an ejector plate, the top side of the ejector plate is provided with a tray, the top side of the tray is provided with a lower pressing plate, the inner wall of the lower pressing plate is provided with a protection baffle plate, and the inner wall of the lower pressing plate is provided with a baffle plate. A mainboard to be tested is arranged on the inner wall of the lower pressing plate. According to the utility model, the test frame adopts a modular design and comprises a mechanical transmission part, an electrical parameter measurement system, a field data test system and a heat dissipation control system, a contact part adopts a flying probe test, and the test frame has the key points that the flexibility is high, a plurality of test points are designed, wide test coverage is provided, and rapid and comprehensive test can be realized; the PCB testing device is especially suitable for large-batch and standardized production of PCBs, and through the design of trays and limiting columns in four directions and a pressing assembly sliding in the height direction, rapid positioning of the PCBAs is achieved, and efficient testing of power panels is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of PCB board automation positioning detection, especially relates to a PCB board automation positioning detection fixture. BACKGROUND

[0002] Test fixture, also known as test rack, is a main tool for assisting in completing PCB (printed circuit board) test. It is widely applied in the process of PCBA manufacturing, and the working principle of test fixture is to connect the solder pad or test point on PCB board through metal probe, to obtain typical numerical values such as voltage value and current value of test circuit under the condition of power supply of PCB board, so as to directly observe whether the tested circuit is normal through the device, conversion mode and computer reading value, and test fixture can greatly improve work efficiency and accuracy of problem finding.

[0003] The existing PCBA test fixture needs manual plugging of various connecting lines after fixing the PCBA board, and various test line connectors are plugged into different sockets on the PCBA board, which is tedious and affects the work efficiency of the PCBA test fixture. The work efficiency of the PCBA test fixture is improved and the tediousness of operation is reduced, and the technology development focuses on providing a test fixture capable of quickly positioning the PCBA board, and the connection mode adopts probe connection of PCB board solder pad level test point, which eliminates the tedious test line connection.

[0004] To this end, the present application proposes a PCB board automation positioning detection fixture for the technical problem. UTILITY MODEL CONTENTS

[0005] The utility model discloses a kind of PCB board automation positioning detection fixtures, test rack adopts modular design, including mechanical transmission part, electric parameter measurement system, field data test system, heat dissipation control system, contact part uses flying probe test, its key point is in flexibility, design multiple test points, provide extensive test coverage, can realize fast, comprehensive test, especially suitable for large quantities, standardization production PCB board by design can 4 directions'stock tray, limiting post and along the height direction sliding press assembly, realize the fast positioning of PCBA board, realize the efficient test of power board.

[0006] To achieve the above object, the utility model provides the following technical scheme:

[0007] The utility model provides a kind of PCB board automation positioning detection fixture, including box, the top side of the box is provided with ejector plate, the top side of the ejector plate is provided with tray, the top side of the tray is provided with lower pressing plate, the inner wall of the lower pressing plate is provided with protection baffle, the inner wall of the lower pressing plate is provided with the mainboard to be measured, the top side of the lower pressing plate is provided with two cooling fans, the top side rear end of the box is provided with high-voltage discharge module, the top side rear end of the box is provided with base frame, the left side of the base frame is provided with mainboard working fan, the front side of the base frame is provided with vertical sliding module, the front side of the base frame is provided with pressing plate control handle, the bottom side of the base frame is provided with vertical guide rail.

[0008] Further, the left side of the box is provided with a single-chip microcomputer burning control line, the left side of the box is provided with a power input line, the left side of the box is provided with a power output line, and the left side of the box is provided with a computer control connection.

[0009] Further, the left end of the top side of the box is provided with a power output switch, and the right end of the top side of the box is provided with a power input switch.

[0010] Further, the bottom side of the base frame is provided with a vertical guide rail, and the outer wall of the vertical guide rail is arranged on the top side of the lower pressing plate.

[0011] Further, the front side of the box is provided with a box bottom cover lock.

[0012] Further, the inner wall of the lower pressing plate is provided with a mainboard limiting column, and the inner wall of the lower pressing plate is provided with a contact pin.

[0013] Further, the left end of the inner wall of the box is provided with a program burner, the right end of the inner wall of the box is provided with an automatic operation control assembly, and the rear end of the inner wall of the box is provided with a low-voltage discharge module.

[0014] Further, the rear end of the top side of the box is provided with a program running monitoring screen, the rear end of the top side of the box is provided with a mainboard working indicator light, and the front end of the top side of the box is provided with a middle control start switch.

[0015] The utility model has the following beneficial effects:

[0016] 1、The utility model discloses a test frame adopts modular design, including mechanical transmission part, electric parameter measurement system, field data test system, heat dissipation control system, contact part adopts flying probe test, and its key point lies in high flexibility, designs multiple test points, provides extensive test coverage, can realize fast, comprehensive test, especially suitable for large quantities, standardization production PCB board can be designed 4 direction's tray, limiting column and along the height direction sliding press assembly, realizes the fast positioning of PCBA board, realizes the efficient test of power board. DRAWINGS

[0017] Fig. 1 A tray perspective view of the PCB automatic positioning detection fixture is provided for the utility model;

[0018] Fig. 2 A contact contact pin structure schematic view of the PCB automatic positioning detection fixture is provided for the utility model;

[0019] Fig. 3 An automatic operation control assembly structure schematic view of the PCB automatic positioning detection fixture is provided for the utility model.

[0020] Legend:

[0021] 1, power input switch; 2, contact pin plate; 3, tray; 4, protection baffle; 5, down pressure plate; 6, cooling fan; 7, base frame; 8, pressure plate control handle; 9, single-chip microcomputer burning control line; 10, computer control connection; 11, power input line; 12, power output line; 13, power output switch; 14, mainboard working indicator light; 15, program running monitoring screen; 16, high-voltage discharge module; 17, mainboard working fan; 18, vertical sliding module; 19, vertical guide rail; 20, mainboard to be measured; 21, box body; 22, middle-end control starting switch; 23, box body bottom cover lock catch; 24, contact contact pin; 25, mainboard limiting column; 26, automatic operation control assembly; 27, program burner; 28, low-voltage discharge module. Specific implementation

[0022] The technical solutions in the embodiments of the utility model will be described clearly and completely below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0023] Refer to Figs. 1-3The utility model provides an embodiment: a kind of PCB board automation positioning detection fixture, the top side of box 21 is provided with thimble plate 2, the top side of thimble plate 2 is provided with tray 3, the top side of tray 3 is provided with lower pressing plate 5, the inner wall of lower pressing plate 5 is provided with protection baffle 4, the inner wall of lower pressing plate 5 is provided with the mainboard to be measured 20, the top side of lower pressing plate 5 is provided with two cooling fans 6, the top side rear end of box 21 is provided with high voltage discharge module 16, the top side rear end of box 21 is provided with base frame 7, the left side of base frame 7 is provided with mainboard working fan 17, the front side of base frame 7 is provided with vertical sliding module 18, the front side of base frame 7 is provided with pressing plate control handle 8, the bottom side of base frame 7 is provided with vertical guide 19, and the tray 3 of four directions is designed, and the pressing assembly that limit post slides along height direction is realized to the quick positioning of PCBA board, avoid the problem that different directions of PCBA board need to be positioned fixed in prior art, test frame adopts modular design, contact part adopts flying probe test, and its key point is that flexibility is high, designs multiple test points, provides extensive test coverage, can realize fast, comprehensive test, places the mainboard to be measured 20 on tray 3, and positioning groove is designed on tray 3, can be quickly and accurately positioned after the mainboard to be measured 20 is placed. 5 lower pressing plate and 18 vertical sliding module are connected with base frame 7, power structure 8 pressing plate control handle is pressed or pull handle, realizes that the mainboard to be measured 20 is accurately contacted with needle plate connection or separation.

[0024] Refer to Fig. 2 And Fig. 3 The left side of box 21 is provided with single-chip microcomputer burning control line 9, the left side of box 21 is provided with power input line 11, the left side of box 21 is provided with power output line 12, the left side of box 21 is provided with computer control connection 10, the top side left end of box 21 is provided with power output switch 13, the top side right end of box 21 is provided with power input switch 1, the bottom side of base frame 7 is provided with vertical guide 19, the outer wall of vertical guide 19 is provided on the top side of lower pressing plate 5, the front side of box 21 is provided with box bottom cover lock catch 23, the inner wall of lower pressing plate 5 is provided with mainboard limit post 25, the inner wall of lower pressing plate 5 is provided with contact thimble 24, the left end of the inner wall of box 21 is provided with program burner 27, the right end of the inner wall of box 21 is provided with automatic operation control assembly 26, the rear end of the inner wall of box 21 is provided with low voltage discharge module 28, the top side rear end of box 21 is provided with program running monitoring screen 15, the top side rear end of box 21 is provided with mainboard working indicator 14, and the top side front end of box 21 is provided with middle end control starting switch 22.

[0025] Working principle: place the to-be-tested mainboard 20 handle, press the automatic test start switch 22, the automatic control assembly in the box 21 sends out the instruction, and the mainboard is written; after the writing is successful, the relay on the automatic operation control assembly 26 disconnects the connection with the to-be-tested mainboard 20, so that the to-be-tested mainboard 20 is separated from the controller, and then the external electrical equipment is connected to the input power through the program control of the automatic operation control assembly 26 to test the to-be-tested mainboard 20, the 12 power output line is connected with the external program-controlled electronic load, the output voltage, the output current, the output power, the efficiency ratio of the to-be-tested mainboard 20 are tested in stages, and the quality control and high reliability test of the to-be-tested mainboard 20 are achieved. The test data of each stage is saved to the control computer through the external program-controlled electronic load, so that the direct viewing and subsequent query purposes are achieved.

[0026] Finally, it should be pointed out that: the above only for the preferred embodiments of the utility model, and does not limit the utility model, although the utility model is described in detail with reference to the foregoing embodiments, for the person skilled in the art, it still can modify the technical scheme recorded in the foregoing each embodiment, or equivalent replacement is carried out to part of technical features, any modification, equivalent replacement, improvement etc. within the spirit and principles of the utility model, should be included in the protection scope of the utility model.

Claims

1. A PCB automatic positioning detection jig, comprising a box body (21), characterized in that: The top side of the box (21) is provided with a needle plate (2), the top side of the needle plate (2) is provided with a tray (3), the top side of the tray (3) is provided with a lower pressing plate (5), the inner wall of the lower pressing plate (5) is provided with a protection baffle (4), the inner wall of the lower pressing plate (5) is provided with a mainboard (20) to be measured, the top side of the lower pressing plate (5) is provided with two cooling fans (6), the top side of the box (21) is provided with a high-voltage discharge module (16), the top side of the box (21) is provided with a base frame (7), the left side of the base frame (7) is provided with a mainboard working fan (17), the front side of the base frame (7) is provided with a vertical sliding module (18), the front side of the base frame (7) is provided with a pressing plate control handle (8), and the bottom side of the base frame (7) is provided with a vertical guide rail (19).

2. The PCB automatic positioning detection fixture according to claim 1, wherein: The left side of the box (21) is provided with a single-chip microcomputer burning control line (9), the left side of the box (21) is provided with a power input line (11), the left side of the box (21) is provided with a power output line (12), and the left side of the box (21) is provided with a computer control connecting line (10).

3. The PCB automatic positioning detection fixture of claim 1, wherein: The top side of the box (21) is provided with a power output switch (13), and the top side of the box (21) is provided with a power input switch (1).

4. The PCB automatic positioning detection fixture of claim 1, wherein: The bottom side of the base frame (7) is provided with a vertical guide rail (19), and the outer wall of the vertical guide rail (19) is arranged on the top side of the lower pressing plate (5).

5. The PCB automatic positioning detection fixture of claim 1, wherein: The front side of the box (21) is provided with a box bottom cover lock (23).

6. The PCB automatic positioning detection fixture of claim 1, wherein: The inner wall of the lower pressing plate (5) is provided with a mainboard limiting column (25), and the inner wall of the lower pressing plate (5) is provided with a contact pin (24).

7. The PCB automatic positioning detection fixture of claim 1, wherein: The left end of the inner wall of the box (21) is provided with a program burner (27), the right end of the inner wall of the box (21) is provided with an automatic operation control assembly (26), and the rear end of the inner wall of the box (21) is provided with a low-voltage discharge module (28).

8. The PCB automatic positioning detection fixture of claim 1, wherein: The top side of the box (21) is provided with a program running monitoring screen (15), the top side of the box (21) is provided with a mainboard working indicator (14), and the top side of the box (21) is provided with a middle control starting switch (22).

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