A comprehensive measuring mechanism

Abstract

The invention provides a comprehensive measuring mechanism, comprising: a position adjustment component including an installation guide rail, which is fixedly installed on a work table, a piston placing plate is arranged on a fixed plate between the installation guide rails, and the bottom surface of the fixed plate is fixedly connected to the adjustment plate, The installation plate is connected with the adjustment plate, and the plug gauge drive mechanism installation plate is fixedly connected to the installation plate. The right-angle end is connected with the plug gauge drive mechanism, and the pull block is connected with the first cylinder; the two plug gauge drive mechanisms are respectively installed on the plug gauge drive mechanism mounting plates on the left and right sides of the mounting plate, and the plug gauge mounting seat is connected to the right angle. The arm is connected. Through the technical scheme of the present invention, the number of turnovers in the piston detection process is reduced, the probability of bumping and scratching is effectively reduced, and the use is convenient, the detection efficiency is high, the detection process is stable and reliable, manpower is saved, and multiple key dimensions of the piston can be realized. Comprehensive testing.

Description

technical field [0001] The invention relates to the technical field of dimension detection of automobile parts, in particular to a comprehensive measuring mechanism. Background technique [0002] The size of the piston pin hole is the key size of the piston. The piston pin hole and the piston pin should maintain a reasonable fit gap to ensure that there is enough lubricating oil film between the piston pin and the pin hole, and there will be dryness between the thin-faced piston pin hole and the piston pin. Generally speaking, when the fitting clearance between the piston pin and the piston pin hole is 6-8 μm, the normal operation of the piston can be guaranteed. [0003] The dimensions related to the piston pin hole also include the symmetry between the pin hole axis and the outer circular axis (ie the offset of the piston pin hole), the perpendicularity between the pin hole axis and the outer circular axis, and the distance from the pin hole axis to the top surface of the ...

AI Technical Summary

Problems solved by technology

[0004] However, in the prior art, the relevant dimensions of the piston pin hole are mostly measured by multiple manual processes or by random inspection using general-purpose measuring tools, which not only wastes manpower, but also causes many turnovers of the piston during the measurement process, which is prone to bumps, scratches, etc. Phenomenon that affects the qualification rate of the product

Compression and other dimensions need to be measured with general-purpose measuring tools. Due to the low efficiency, only random inspection can be used, which makes it impossible to ensure that all pistons are qualified in size

Although there are some simple piston pin hole detection equipment, generally only a few dimensions can be measured, and when the pin hole diameter and pin hole roundness are measured, the pin hole air probe is generally used, and the two pin hole probes are inserted respectively. In the piston pin hole on the side, the measurement is divided into several times, which is more cumbersome and the detection accuracy is poor

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