Precision noncircular surface turning two-dimensional control device and control method thereof

Abstract

The invention discloses a precision noncircular surface turning two-dimensional control device comprising a tool rest, a tool mounting table, a controller, a spindle encoder, a vibration sensor, and a tool. Elastic deformable members are integrally connected between four inner right-angles of the tool rest and four outer right-angles of the tool mounting table in a one-to-one correspondence manner. The tool is fixed on the tool mounting table. The vibration sensor is fixed on the tool. The spindle encoder is fixed on a lathe spindle. The precision noncircular surface turning two-dimensional control device is characterized in that voice coil linear motors are fixed to the radial center line and axial center line of the tool mounting table on the tool rest respectively, and one side, facing to the voice coil linear motors, of the tool mounting table is integrally provided with a flexible hinge which is fixedly connected with the voice coil linear motors. The precision noncircular surface turning two-dimensional control device has the advantages that two-dimensional control of precision non-circular machining is achieved, machining precision of precision non-circular turning is improved, and the device is good in output linearity and controllability on the premise of high frequency voice.

Description

technical field [0001] The invention relates to a mechanical cutting device of a numerical control lathe in the technical field of mechanical design and manufacturing, in particular to a two-dimensional control device and a control method for precision turning of a non-circular surface. Background technique [0002] When turning non-circular parts, the motion of the tool during the cutting process is a composite motion of axial linear motion and radial feed motion. The radial feed motion of the tool is a reciprocating linear motion with certain periodicity and regularity. This cycle and The law varies according to the shape of the non-circle and the rotational speed of the spindle. At present, the processing of non-circular cross-sections mainly adopts CNC turning processing with the characteristics of high efficiency, wide application range, and low cost. The devices are all one-dimensional control, and the output linearity is poor, the controllability is poor, the output...

AI Technical Summary

Problems solved by technology

At present, the processing of non-circular cross-sections mainly adopts CNC turning processing with the characteristics of high efficiency, wide application range, and low cost. The devices are all one-dimensional control, and the output linearity is poor, the controllability is poor, the output displacement is small, and the processing accuracy is not high enough

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