Cylinder cover guide pipe pressing method, system and device with self-adaptive characteristic

Abstract

The invention discloses a cylinder cover guide pipe pressing method, system and device with a self-adaptive characteristic. The pressing method comprises the following steps that a signal of air pressure sprayed to a position between the bottom face of a pressing head and the pressing step face of a cylinder cover is obtained; according to the obtained air pressure signal, the real-time distance from the bottom face of the pressing head to the pressing step face of the cylinder cover is obtained; according to the obtained real-time distance, the value of pressing depth by which a to-be-press guide pipe is pressed into a guide pipe hole in the cylinder cover is obtained, and the numerical value range of the pressing depth value is judged; and when it is detected that the pressing depth value does not reach the preset numerical value range, the pressing head is controlled and driven to move downwards till the pressing depth value reaches the preset numerical value range. According to the cylinder cover guide pipe pressing method with the self-adaptive characteristic, the pressing head is controlled and driven to conduct self-adaptive adjustment till the pressing depth value reaches the preset numerical value range, so that poor pressing is avoided, the production efficiency of pressing the guide pipe into the cylinder cover is improved, and the waste rate is reduced.

Description

technical field [0001] The invention relates to the field of assembly detection, in particular to a press-fitting method for a cylinder head conduit with self-adaptive characteristics. Background technique [0002] In the field of engine manufacturing, there are strict requirements on the depth d of the cylinder head conduit press-in, and the press-in depth d refers to the distance from the press-in end of the conduit to the press-fitting step surface of the cylinder head. [0003] The current mainstream catheter press-fitting process uses hydraulic cylinders or servo electro-hydraulic cylinders as the power source, setting mechanical limits or servo-set strokes as signals for press-fitting in place, or using a mix of the two methods. [0004] In the prior art, the hydraulic cylinder is used as the power source for the press-fitting of the conduit, and the signal of the press-fitting is to set the mechanical limit. However, during product processing, for different cylinder ...

AI Technical Summary

Problems solved by technology

However, during product processing, for different cylinder head workpieces, the distance from the processed conduit press-fitting step surface to the press-fit positioning surface is randomly distributed within a certain error range; the same cylinder head workpiece has 16 steps for a 4-cylinder machine surface, the position will also fluctuate randomly within a certain error range

The current mechanical limit press-fit stroke is fixed, and the press-fit stroke cannot be automatically adjusted with the position fluctuation of the workpiece press-fit surface. One result is that the press-fit head has reached the limit point, but has not touched the press-fit step surface. Insufficient press-in depth of the conduit; another result is that the press-fit head has not reached the limit point, but has contacted the press-fit step surface, causing the cylinder head to deform under pressure

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