Small-displacement pre-thrust mechanism

Abstract

The invention discloses a small-displacement pre-thrust mechanism which comprises a driving assembly, a measuring device, a product fixing assembly and a moving device. The moving device comprises an X-axis moving device, a pushing block arranged on the X-axis moving device, a Z-axis moving device and a reverse pushing block arranged on the Z-axis moving device; a first inclined surface is arranged on the push block, and a second inclined surface in contact with the first inclined surface is arranged on the reverse push block; a pressure sensor is arranged on the Z-axis moving device; and the measuring device comprises a measuring probe and a probe head. According to the small-displacement pre-thrust mechanism disclosed by the invention, through mutual movement between the push block and the reverse push block, vertical displacement is increased, and the problem that a high-precision pressure sensor cannot meet the application requirement due to small displacement is solved; the sliding device is arranged on the measuring probe, so that automatic falling and measurement of the measuring probe are realized, the detection time is shortened to a great extent, and the measurement efficiency is improved.

Description

technical field [0001] The invention relates to the technical field of mechanical measurement, in particular to a small displacement pre-thrust mechanism. Background technique [0002] At present, there are metal sheets and glass lenses on the periphery of the mobile phone camera. After the metal and glass lenses are assembled, the firmness and displacement of the assembled products need to be tested. The traditional detection method is to manually detect on the detection machine one by one, and the detection efficiency is low; and the product is small in size, it needs to apply a force of 5000±30g during the test, the control displacement is 0.02mm, and the pre-thrust force cannot be too strong , and it is impossible to exceed the specified displacement, the requirements for personnel are high, and there are large errors in manual detection. [0003] In the current product displacement detection operation, sensors have been widely used to assist product detection, which ca...

AI Technical Summary

Problems solved by technology

Although the existing pressure sensor has high precision, but the displacement is small, it cannot meet the requirements of the application.

At the same time, during the detection process of the device, the switching cycle between the execution units is relatively long, and data measurement cannot be realized in a short time

At the same time, the precision of thrust control is not in place, and it is easy to damage the product

[0004] Therefore, it is obviously of practical significance to develop a small displacement pre-thrust mechanism with better fixation and higher precision that can solve the problem of small displacement and low measurement accuracy of high-precision pressure sensors, so as to further improve the operation yield.

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