CN201277916Y

CN201277916Y - Mechanical performance integrated test machine for electric relay

Info

Publication number: CN201277916Y
Application number: CNU2008200936454U
Authority: CN
Inventors: 请求不公开姓名
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-04-28
Filing date: 2008-04-28
Publication date: 2009-07-22
Anticipated expiration: 2018-04-28

Abstract

The utility model relates to an integrated tester which can measure the mechanical property parameter of a relay. The tester comprises a controller, a servo or step-by-step system, a pressure displacement sensor and relative mechanical parts. A gag bit is pushed or pulled by a mechanical device connected on the pressure sensor to complete the on-off action. The pressure value and the displacement value of the relay during the on-off process are measured, the measured values are automatically calculated to obtain relative parameters, and the parameter results are displayed.

Description

Relay mechanical property integration test machine

Affiliated technical field

The utility model relates to the automatization testing technique at the mechanical property of relay product.

Background technology

The relay industry is for Gap, Follow, contact pressures etc. influence the mechanical parameter of properties of product, all there is strict specification to control. but present projector, there is the problem that speed is slow and pressure parameter can't be measured in method of testings such as picture system. and by the extensive thickness gauge that adopts of production line of batch, manual methods such as spring dynamometer, though test speed is very fast, but all can only test the parameter of individual event, and can only make simple qualified and underproof judgement, actual value that can't measurement parameter.

Summary of the invention

In order to overcome the existing test machine deficiency of measuring relay mechanical property rapidly and accurately, the utility model provides a kind of relay mechanical property integration test machine, this test machine can not only be finished the measurement of actual numerical value of every mechanical property of relay in a test process, and the test duration is short, can satisfy batch production requirement.

At first the relay mechanical property that can measure the utility model defines:

1, Gap: refer to the distance value between the moving contact and NO (often opening) contact under non-power status.

2, Follow: refer to energising back moving contact and NO (often opening) contact moment of adhesive just, the distance value between armature and the iron core. this parameter was also referred to as stroke or Overtravel.

3, A pressure: refer to the energising back under the state of armature and adhesive unshakable in one's determination, the force value between moving contact and NO (often opening) contact.

4, B pressure: refer to the original pressure value between moving contact and NC (normally closed) contact under non-power status.

The technical scheme that the utility model adopted is:

Be installed to high-precision pressure transducer servo or step-by-step system on, the pressure head that utilization is installed on the pressure transducer head pushes away (drawing) moving armature to complete attracting state. in this process, measure the variation of all pressure and displacement and calculate synchronously and change slope, pressure and displacement are included into calculating formula as the flex point data when slope arrives predetermined value, calculate the relevant parameters value, and the specification value of result of calculation with the parameter that configures compared, finish qualified and underproof automatic judgement. measurement result has the output of 2 kinds of modes, the 1st, with the judged result of electric signal output OK/NG, so that the control mechanical action sorts automatically to product, the 2nd, the concrete numerical value of parameters is represented on display, simultaneously, each pressure in the test process and the variation of displacement also can show with the form of waveform. and the utility model adopts micro computer to calculate, and can realize test at a high speed.

The beneficial effects of the utility model are:

Use this relay mechanical property integration test machine, both can realize sorting automatically of non-defective unit/defective products, avoid the erroneous judgement that human factor causes in the present handwork to fail to judge, and can export the actual value of parameters, convenient to technology, quality is analyzed and is controlled. and the high speed that the utlity model has makes it not be only applicable to product development, the sample testing of departments such as qualitative control, and can be applied to the total detection of production line of batch fully.

Description of drawings:

Fig. 1 is that each contact to relay describes.

Fig. 2, Fig. 3, Fig. 4 describe the relay proper noun;

Fig. 5 is the structure principle chart of test machine.

Fig. 6 is the displacement-pressure waveform curve map that can reflect mechanical performance parameter in the relay switching process.

The ABCDE curve is displacement-pressure curve;

B_D is the shift value that B is ordered;

B_N is the force value that B is ordered;

C_D is the shift value that C is ordered;

C_N is the force value at the intersection point place of the extended line of BC section and N axle;

D_D is the shift value that D is ordered;

D_N is the force value that D is ordered;

Embodiment:

After putting product well, press start key, pay-off is delivered to the position to product, controller is controlled servo or step-by-step system advances at utmost speed, arrive assigned address (initial point) back Easy abeadl, controller begins displacement of Mining collection and pressure data simultaneously, and simultaneously showing curve (as the ABCDE curve of Fig. 6) on the display. when detecting shift value and remain unchanged, motor halts and retreats into initial position. and simultaneously controller is analyzed displacement-pressure data that the Mining collection arrives, and judges each flex point on the curve by calculating. and the data by the flex point place draw each parameter value then. and computing formula is as follows:

Gap＝C_D-B_D；

Follow＝D_D-C_D；

A pressure=D_N-C_N;

B pressure=B_N;

Claims

1, relay mechanical property integration test machine is characterized in that: by controller, and servo or step-by-step system, pressure transducer and associated mechanical are partly formed; Promote or pulling armature by the mechanical hook-up that is connected on the pressure transducer, finish the on-off action of contact.