Micro switch stroke pressure automatic test device

Abstract

The invention provides an automatic stroke and pressure testing device for a microswitch. The testing device comprises a working table and a testing instrument; the working table comprises a base, a clamping assembly, an action assembly, a micrometer, a coupler and a working table circuit assembly; the working table circuit assembly comprises a first probe, a second probe, a third probe, a fourth probe, a pressure sensor, a stepping motor and testing buttons; the testing instrument comprises a panel and a testing instrument circuit assembly; the testing instrument circuit assembly comprises an SCM processing module, a motor driver, a filter comparison circuit module, a conditioning and amplifying circuit module, an A / D conversion module, a digital display module, an indication lamp module, a key module, a buzzer and a power module. The stepping motor drives the micrometer to rotate through the coupler and pushes the action assembly to move so that the microswitch to be tested can be tested automatically. The automatic stroke and pressure testing device can automatically measure the comprehensive technical parameters of the microswitch and is high in testing efficiency and automation degree and quite convenient to operate.

Description

technical field [0001] The invention relates to detection equipment for a micro switch, in particular to a device capable of comprehensively and automatically testing the parameters of a micro switch. Background technique [0002] Micro switch is an important component in signal transmission, automatic control and other circuit devices. The micro switch has the characteristics of small size, fast closing or switching speed, small stroke and short time. When the micro switch is used in production, its technical parameters such as pre-stroke (PT), over-stroke (OT), differential stroke (MD), operating force (OF), total stroke force (TF), and release force (RF) Indicators need to be more stringent testing. At present, most of the production lines of small and medium-sized micro switch manufacturers use manual methods to test the technical parameters of the micro switch travel and pressure separately. For example: the method of measuring the differential stroke is to use a man...

AI Technical Summary

Problems solved by technology

For example, the Chinese patent document whose publication number is CN 101368855A discloses a digital comprehensive measuring instrument that uses a grating scale and a grating read head to detect the pressure and stroke of the micro switch, but it still uses a screw rod to detect manually. There is still the problem of testing inefficiency

Images