A high-speed, high-precision five-axis ultrasonic machining machine tool

Abstract

The invention discloses a high-speed high-precision five-axis ultrasonic machine tool comprising a machine tool body device, a cutter magazine device, a main shaft head device and a worktable device. The high-speed high-precision five-axis ultrasonic machine tool adopts a portal frame with continuous and stable performance as a foundation, is high in rigidity, hardly affected by heat and meets the high-precision ultrasonic machining requirement. Double driving linear motors are adopted in the Y-axis direction, grating scales are used as position feedback devices, thus a full-closed loop feedback system is constituted, and the highest precision and the part precision are guaranteed. A cutter assembly body with an ultrasonic function has the special effect on breaking chips and removing cut chips on a cutter, the broken cut chips are finer, and thus cutter abrasion is reduced significantly. An electric main shaft is used for driving the cutter to rotate at a high speed, electricity is supplied to transducers in a non-contact electricity supply mode, and the high-speed cutting technology and the efficient ultrasonic hard and brittle material grinding technology are integrated. A rotating telescopic motor and a manipulator are used for rapid cutter replacement, and under the premise of one-time clamping, various ultrasonic machining techniques can be achieved or coarse machining and finish machining can be completed at a time.

Description

technical field [0001] The invention relates to the field of mechanical processing, in particular to a high-speed and high-precision five-axis ultrasonic processing machine tool. Background technique [0002] With the development of high-end industries such as aerospace, information and electronics, optics, etc., mechanical equipment has higher and higher requirements on the performance of materials. Hard and brittle materials are more and more widely used in these fields because of their excellent physical and chemical properties, and the required precision is getting higher and higher. Traditional processing methods are increasingly unable to meet its processing requirements. Ultrasonic machining is a non-thermal, non-conductive, non-chemical processing method that does not change the physical and chemical properties of the workpiece material. It can effectively avoid thermal damage and micro cracks, and is suitable for almost any hard and brittle materials. The cutting ...

AI Technical Summary

Problems solved by technology

[0003] Patent CN206263736 discloses a five-axis ultrasonic polishing machine tool. The machine tool adopts an L-shaped open structure, and the force is asymmetrical. Moreover, when the spindle box is partially heated, it has a great influence on the position accuracy of the spindle, and the machining accuracy is low. It cannot achieve precision and Ultra-precision machining, the machine tool can only achieve polishing

In addition, the structure of the machine tool does not specify how the horn is rotated

[0004] Patent CN106736992A discloses a five-axis ultrasonic polishing machine tool. This machine tool also adopts an open structure, and the transmission chain is long, the rigidity is poor, and the force is not good. In addition, the polishing head in the machine tool structure cannot rotate, and the processing efficiency will inevitably be reduced.

Images