Child-mother sliding table device for rapid response for piston machining

Abstract

The invention provides a child-mother sliding table device for rapid response for piston machining. The child-mother sliding table device comprises a vertically-mounted Z axis feed system, a mother sliding table X1 system, and a child sliding table X2 system. A workpiece is clamped and fixed by a fixture and can rotate around the A axis of the workpiece. Feeding of the Z axis feed system is achieved by driving of a servo motor. The mother sliding table X1 system is vertically mounted on the Z axis feed system and can slide leftwards and rightwards with respect to the workpiece under driving ofa first linear motor. The mother sliding table X1 system and the Z axis feed system are interpolatedto form a generatrix of the middle-convex side of the workpiece. The child sliding table X2 systemis vertically mounted on a first sliding table of the mother sliding table X1 system and can reciprocate at high frequency with respect to the mother sliding table X1 system under driving of a secondlinear motor. The child sliding table X2 system and the self-rotating A shaft of the workpiece are interpolated to from a non-circular cross section of the workpiece. Compared with the prior art, large-stroke feeding is achieved, high-frequency reciprocating feeding is achieved, machine tool moving accuracy is high, and accurate machining procedure control is easy to achieve.

Description

technical field [0001] The invention relates to the technical field of piston processing equipment, in particular to a master slide device for fast response piston processing. Background technique [0002] As the core component of the engine, the piston of an automobile engine needs to bear alternating mechanical loads and thermal loads during work, and it is also one of the parts with the worst working environment in the engine. The convex non-circular piston can improve the thermal performance of the internal combustion engine and satisfy the stability of the piston at high temperature, high pressure and high speed operation: the piston relies on the skirt to contact and guide the cylinder liner to achieve reciprocating motion, and the contact gap should be as small as possible and kept uniform. The upper part is set as an anti-ellipse. When working, the deformation in the direction of the long axis is large, and it changes from an ellipse to a perfect circle to fit closel...

AI Technical Summary

Problems solved by technology

The CNC lathe has high precision and can process a variety of pistons, but the overall structure is complex, and the high-frequency reciprocating and large-stroke feeding of the sliding table cannot be realized at the same time. In view of this, it is necessary to make further improvements to the existing equipment for processing non-circular pistons.

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