CN102175946A - Production test fixture - Google Patents

The invention relates to a production test fixture which belongs to the technical field of production test. In order to improve the test efficiency and lower the fixture cost, the production test fixture comprises a support plate, a perforated plate, a PCB and a plurality of testing pins, wherein the support plate is arranged below one end of the fixture for supporting a main board to be tested; the perforated plate is arranged under the support plate for fixing testing pins; the PCB (printed circuit board) is arranged below the perforated plate and is provided with a plurality of contacts; and the plurality of testing pins are respectively fixed in the perforated plate, one end of each testing pin keep contacts with a test point on the main board, and the other end keeps contact with the contact on the PCB during testing. By using the PCB as the substitute of testing box, the fixture can greatly reduce the product cost, and can further use the screen-printed wiring of the PCB as the substitute of the conductor wiring structure in the conventional process, thereby greatly simplifying the fixture structure, improving the testing efficiency, simplifying the testing process and shortening the entire production period.

The tool that is used for production test

Technical field

The present invention relates to the production test technical field, be specifically related to a kind of tool that is used for production test.

Background technology

Employed on the market at present tool, be that mainboard is fixed on the supporting plate upper strata, the one side that has test point of mainboard is towards the below, it under the supporting plate testing cassete, the stationkeeping of the corresponding mainboard test point in testing cassete top has test to draw pin, draw pin one end and touch test point above the mainboard, the via hole that the other end sees through the testing cassete top connects lead, the test interface of another termination testing cassete avris of lead, the signal of mainboard test point just is directed on the test interface of testing cassete avris like this, and the tester can be by receiving test interface the index test that carries out each test point on the instrument.

There is following problem in above-mentioned then method of testing: at first, all need welding lead on each test point of mainboard, implement more loaded down with trivial details, influence testing efficiency; Secondly, the cost of application testing box is higher relatively, has increased the cost of product virtually and has seriously slowed down the whole cycle of producing.

Summary of the invention

(1) technical matters that will solve

The technical problem to be solved in the present invention is how to have the efficient that the tool that is used for production test improves testing engineering now by improveing, and how to reduce the cost of the tool that is used for production test.

(2) technical scheme

In order to solve the problems of the technologies described above, the invention provides a kind of tool that is used for production test, it comprises:

Supporting plate, the position that it is arranged at an end bottom of described tool is used to support mainboard to be tested;

Cross orifice plate, its be arranged at described supporting plate under, be used for fixing test and draw pin;

Pcb board, it is arranged at the described below of crossing orifice plate, and described pcb board is provided with some contacts;

Pin is drawn in some pieces of tests, and it is fixed in described the mistake in the orifice plate separately, and the described test of each piece is drawn pin and is set in a test process end and touches test point on the described mainboard to be tested, and the other end touches the contact on the described pcb board.

Described pcb board one end is provided with the interface of termination external test facility;

Described several contacts are connected with described interface all along the silk-screen cabling on the described pcb board;

Described tool also comprises: pressing plate, its be arranged at described supporting plate directly over, be used for described mainboard to be tested is fixed on described supporting plate.

(3) beneficial effect

The tool that technical solution of the present invention provided, by adopting PCB (Printed CircuitBoard, printed circuit board (PCB)) plate is acted on behalf of testing cassete, can reduce the cost of product greatly, and the silk-screen cabling that further utilizes pcb board replaces the lead Wiring structure in the traditional handicraft, therefore simplified the structure of tool greatly, improved testing efficiency, test process is very easy, has improved the whole cycle of producing.

Description of drawings

Fig. 1 is the side view of the related tool of the specific embodiment of the invention;

Fig. 2 is the vertical view of the related tool of the specific embodiment of the invention;

Fig. 3 is the stereographic map of the related tool of the specific embodiment of the invention;

Wherein, being labeled as among the figure:

101: pressing plate; 102: mainboard to be tested; 103: supporting plate; 104: pin is drawn in test;

105: cross orifice plate; The 106:PCB plate.

Embodiment

For making purpose of the present invention, content and advantage clearer,, the specific embodiment of the present invention is described in further detail below in conjunction with drawings and Examples.

As Figure 1-3, the tool that is used for production test that technical solution of the present invention provided comprises:

In sum, technical solution of the present invention is acted on behalf of testing cassete by adopting pcb board, can reduce the cost of product greatly, and the silk-screen cabling that further utilizes pcb board replaces the lead Wiring structure in the traditional handicraft, therefore simplified the structure of tool greatly, improved testing efficiency, test process is very easy, has improved the whole cycle of producing.

The above only is a preferred implementation of the present invention; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the technology of the present invention principle; can also make some improvement and distortion, these improvement and distortion also should be considered as protection scope of the present invention.