Three-way decoupled force measurement type piezoelectric fast tool servo device

Abstract

The invention provides a three-way decoupled force measurement type piezoelectric fast tool servo device, and relates to the technical field of ultra-precision machining. The device comprises a tool holder seat, an X-direction drive platform, a Y-direction drive platform and a Z-direction drive platform, wherein a three-way force measuring device for measuring the turning force of a tool in a decoupling mode is arranged in the tool holder seat, the X-direction drive platform, the Y-direction drive platform and the Z-direction drive platform are of same structures and all comprise flexible connectors connected with the tool holder seat, both sides of the flexible connectors are symmetrically connected with displacement amplifying mechanisms through flexible hinges, the displacement amplifying mechanisms are connected with piezoelectric drivers, the displacement amplifying mechanisms comprise multi-stage amplifying mechanisms connected through flexible hinges, and displacement detectingmechanisms are arranged on the flexible connectors. The device solves the problems that a fast tool servo device in the prior art is difficult to simultaneously achieve the large-stroke synchronous reciprocating movement in the X-direction, the Y-direction and the Z-direction, and the cutting force and the movement position in the machining process cannot be simultaneously detected, resulting in low machining quality.

Description

technical field [0001] The invention relates to the technical field of ultra-precision machining, in particular to a three-way decoupling force-measuring type piezoelectric fast knife servo device. Background technique [0002] Non-circular cross-section parts and non-rotationally symmetrical optical elements have been widely used in the mechanical industry and the optoelectronic industry respectively. Their surface contours are asymmetrical, complex in shape, and require high precision. Traditional processing methods have low processing efficiency and poor processing accuracy consistency. Difficult to meet demand. Non-circular CNC turning and non-axisymmetric turning are effective methods for processing these two types of parts, which can realize high-efficiency, high-precision, and flexible processing of parts, and have significant economic benefits. A common key technology of these two processing methods is to install a Fast Tool Servo (FTS) device with fast response cap...

AI Technical Summary

Problems solved by technology

[0005] Aiming at the above-mentioned problems in the prior art, the present invention provides a three-way decoupling force-measuring piezoelectric fast-knife servo device, which solves the problem that the fast-knife servo device in the prior art is difficult to simultaneously realize X-direction, Y-direction and Z-direction Synchronous reciprocating motion with a large stroke and the lack of simultaneous detection of cutting force and motion position during processing lead to low processing quality

Images