CN203811700U

CN203811700U - Integrated production test device

Info

Publication number: CN203811700U
Application number: CN201420033477.5U
Authority: CN
Inventors: 王厚国
Original assignee: Xiamen Causes Open Network Science And Technology Ltd
Current assignee: Xiamen through automation technology Co., Ltd.
Priority date: 2014-01-20
Filing date: 2014-01-20
Publication date: 2014-09-03
Anticipated expiration: 2024-01-20

Abstract

The utility model relates to the technical field of electronic product test, and especially discloses an integrated production test device. The test device includes a tool fixture which is used for placing a device under test and being connected to a test point of the device under test. The test device also includes a communication interface, a signal acquisition IO module, a PC, an IO expansion circuit, a signal isolation circuit, a signal generator, a signal switching circuit and a pushing-needle plate interface. According to the technical scheme, the beneficial effects of the utility model are that the test device is low in cost, is convenient to operate, can be used for testing a plurality of to-be-tested devices at the same time, can not only reduce manual work but also increase production, can satisfy performance determination, is wide in application range and is good in test stability.

Description

A kind of integrated production test equipment

Technical field

The utility model relates to electronic product technical field of measurement and test, refers to especially a kind of integrated production test equipment.

Background technology

In recent years, along with the quality requirements that dispatches from the factory, tester's work efficiency and the one-tenth profit of electronic product are controlled requirement, manufacturing enterprise progressively adopts frock clamp to expire production test needs; But common frock clamp test function is simple, performance testing index parameter need to be judged by tester, testing procedure needs artificial single step to carry out, test can only separate unit or monolithic in test, production efficiency and low.And large-scale ATE (automatic test equipment), though meet the requirement in testing efficiency and quality, product cost is too expensive, changes test products line and too bothers.

Utility model content

The technical problems to be solved in the utility model is to provide a kind of integrated production test equipment, starts button and just can provide many and test all steps simultaneously as long as press, and improves its production efficiency and meets performance judgment; Applicable to various control class PCBA plate and audio and video equipment test.

For solving the problems of the technologies described above, embodiment of the present utility model provides a kind of integrated production test equipment, comprise the frock clamp for placing equipment under test and being connected with the test point of equipment under test, also comprise: communication interface, signals collecting IO module, PC, IO expanded circuit, signal isolation circuit, signal generator, signal switching circuit, ejector retainner plate interface

Ejector retainner plate interface, it is connected with frock clamp by test interface line, for distinguishing different test functions and controlling function, and distinguishes different interfaces according to test function;

Signal isolation circuit, it is connected with ejector retainner plate interface by test signal line, for according to the specific signal of the type of isolation of signal;

Signal switching circuit, it is connected with signal isolation circuit, for receiving the signal after signal isolation circuit isolation, and is switched to corresponding collection port according to unlike signal;

Signals collecting IO module, its collection port after switching by alternating current-direct current signal wire and signal switching circuit is connected, for detection of, control alternating current-direct current collection and IO mouth;

PC, gathers the IO mouth of IO module and reads image data for control signal;

IO expanded circuit, it is connected with collection IO module by IO line, for the IO mouth that gathers the limited IO mouth expansion of IO module being met to the demand of system;

Signal generator, for providing signal by signal isolation circuit for equipment under test;

Communication interface, for being converted to the PC communication pattern suitable with PC by the converts communications pattern of signal isolation circuit.

As preferably, described signal generator provides audio-video signal by signal isolation circuit for equipment under test, and described IO expanded circuit is connected with signal generator by control line; Described IO expanded circuit is also connected with signal switching circuit by IO line; Described signals collecting IO module is connected with PC by data line.

As preferably, described signal isolation circuit is connected with communication interface by R232/TTL/485 order wire, and described PC is connected with communication interface by R232/485 order wire.

As preferably, described signal isolation circuit comprises communication isolating, and the isolation of IO mouth, audio-video signal collection isolation, audio-video signal output isolation, ADC gather isolation.

As preferably, described IO expanded circuit comprises signals collecting IO module interface, code translator and 16 groups of latchs, described collection IO module interface is by the output of 5 O mouth control code translators, described collection IO module interface is connected with latch by 7 IO mouths, described code translator enables to control 16 groups of latchs, and described 16 groups of latchs are also connected with 8 groups of I mouth test sides and 8 groups of O mouth output terminals.

As preferably, described code translator is 74HC154 code translator, and described latch is that 74HC573 comprises the non-reversion transparent latch of scale-of-eight 3 state.

The beneficial effect of technique scheme of the present utility model is as follows: with low cost, easy to operate, and can provide many Devices to tests to test simultaneously, not only reduce manpower, but also production efficiency is provided, can meet performance judgment; And applied widely, measuring stability is good.

Brief description of the drawings

Fig. 1 is the electrical block diagram of a kind of integrated production test equipment of the present utility model.

Fig. 2 is the circuit theory diagrams of IO expanded circuit in Fig. 1.

Embodiment

For making the technical problems to be solved in the utility model, technical scheme and advantage clearer, be described in detail below in conjunction with the accompanying drawings and the specific embodiments.

The utility model provides a kind of integrated production test equipment for existing deficiency, as shown in Figure 1, comprise the frock clamp 1 for placing equipment under test and being connected with the test point of equipment under test, also comprise: communication interface 7, signals collecting IO module 8, PC 9, IO expanded circuit 5, signal isolation circuit 4, signal generator 3, signal switching circuit 6, ejector retainner plate interface 2

PC, gathers the IO mouth of IO module and reads image data for control signal;

Described signal generator provides audio-video signal by signal isolation circuit for equipment under test, and described IO expanded circuit is connected with signal generator by control line; Described IO expanded circuit is also connected with signal switching circuit by IO line; Described signals collecting IO module is connected with PC by data line.

Described signal isolation circuit is connected with communication interface by R232/TTL/485 order wire, and described PC is connected with communication interface by R232/485 order wire.

Described signal isolation circuit comprises communication isolating, and the isolation of IO mouth, audio-video signal collection isolation, audio-video signal output isolation, ADC gather isolation.

As shown in Figure 2, described IO expanded circuit comprises signals collecting IO module interface, code translator and 16 groups of latchs, described collection IO module interface is by the output of 5 O mouth control code translators, described collection IO module interface is connected with latch by 7 IO mouths, described code translator enables to control 16 groups of latchs, and described 16 groups of latchs are also connected with 8 groups of I mouth test sides and 8 groups of O mouth output terminals.

Described code translator is 74HC154 code translator, and described latch is that 74HC573 comprises the non-reversion transparent latch of scale-of-eight 3 state.

The above is preferred implementation of the present utility model; should be understood that; for those skilled in the art; do not departing under the prerequisite of principle described in the utility model; can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.

Claims

1. an integrated production test equipment, comprise the frock clamp for placing equipment under test and being connected with the test point of equipment under test, it is characterized in that, also comprise: communication interface, signals collecting IO module, PC, IO expanded circuit, signal isolation circuit, signal generator, signal switching circuit, ejector retainner plate interface

PC, gathers the IO mouth of IO module and reads image data for control signal;

2. the integrated production test equipment of one according to claim 1, is characterized in that, described signal generator provides audio-video signal by signal isolation circuit for equipment under test, and described IO expanded circuit is connected with signal generator by control line; Described IO expanded circuit is also connected with signal switching circuit by IO line; Described signals collecting IO module is connected with PC by data line.

3. the integrated production test equipment of one according to claim 2, is characterized in that, described signal isolation circuit is connected with communication interface by R232/TTL/485 order wire, and described PC is connected with communication interface by R232/485 order wire.

4. the integrated production test equipment of one according to claim 3, is characterized in that, described signal isolation circuit comprises communication isolating, and the isolation of IO mouth, audio-video signal collection isolation, audio-video signal output isolation, ADC gather isolation.

5. the integrated production test equipment of one according to claim 4, it is characterized in that, described IO expanded circuit comprises signals collecting IO module interface, code translator and 16 groups of latchs, described collection IO module interface is by the output of 5 O mouth control code translators, described collection IO module interface is connected with latch by 7 IO mouths, described code translator enables to control 16 groups of latchs, and described 16 groups of latchs are also connected with 8 groups of I mouth test sides and 8 groups of O mouth output terminals.

6. the integrated production test equipment of one according to claim 5, is characterized in that, described code translator is 74HC154 code translator, and described latch is that 74HC573 comprises the non-reversion transparent latch of scale-of-eight 3 state.