High-precision full-automatic balancing machine suitable for three-cylinder crankshaft

Abstract

The invention relates to a high-precision full-automatic balancing machine suitable for a three-cylinder crankshaft. The machine comprises a marble base table, wherein a crankshaft supporting swing frame is connected to the marble base table, the two sides of the crankshaft supporting swing frame are matched with a pneumatic centering unit and an automatic magnetic attraction type flexible shaft coupling unit correspondingly, the automatic magnetic attraction type flexible shaft coupling unit is connected with a driving motor, an air cylinder provides power for the pneumatic centering unit torealize rapid and automatic centering of the three-cylinder crankshaft to be balanced, a high-speed drilling motorized spindle unit is arranged above the crankshaft supporting swing frame, the high-speed drilling motorized spindle unit is fixed on a moving table, and can do planar motion in the x direction and the y direction to realize automatic de-weight at a specified position, a powder recovery device is arranged at upper portion of the crankshaft supporting swing frame, and the pneumatic centering unit, the crankshaft supporting swing frame, the automatic magnetic attraction type flexibleshaft coupling unit, the driving motor and the like are all controlled by a cooperative control unit. According to the machine, the unbalance test and de-weight correction automation of the three-cylinder crankshaft are realized, and the balance efficiency and the balance precision are improved.

Description

technical field [0001] The invention relates to the technical field of rotor dynamic balancing, in particular to a high-precision full-automatic balancing machine suitable for three-cylinder crankshafts. Background technique [0002] With the continuous development of the automobile industry, the industry has put forward higher requirements for the performance of the engine. As an important component of the engine, the crankshaft's rotation performance has an important impact on the performance of the engine. The inertial force and moment of inertia caused by the unbalanced mass of the crankshaft during rotation will cause engine vibration, which will cause the parts of the machine to bear additional dynamic loads, will accelerate the wear of bearings and journals, and affect the work of the machine performance, reduce the accuracy of the machine, and seriously affect the service life of the machine. In order to improve the rotation performance of the rotor, a certain mass ...

AI Technical Summary

Problems solved by technology

[0003] As a special rotor, the crankshaft has no correction surface at any position compared with the ordinary rotor. At present, the following method is often used for the balance of the crankshaft, that is, the inertia force test is carried out on the crankshaft first, and then the unbalanced value and phase angle are obtained. The crankshaft is dynamically balanced by manual drilling and weight removal. This method often requires multiple tests and weight removal. The balance efficiency is low and the balance accuracy is difficult to guarantee.

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