A wireless measuring device for machine tool cutting force

Abstract

The invention discloses a wireless measurement device for machine tool cutting force and belongs to the field of mechanical design. The device comprises a turn-connecting plate, a front baffle, an installing base body, a wireless module, four three-axis force sensors and a rear baffle. The four three-axis force sensors and the installing base body are connected into a whole through screws so that the main structure of the wireless measurement device for the cutting force can be formed; the turn-connecting plate is connected with a chuck used for clamping workpieces, and therefore the cutting force can be input; the whole device is sealed through the front baffle and the rear baffle, and the front baffle and the rear baffle play a role of overload protection; after the whole device is fixed to a main shaft, the cutting force of a machine tool can be wirelessly measured through the wireless module. By means of the method, the cutting force borne by the workpieces in the X direction, the Y direction and the Z direction in the precise and fine turning and milling combined machining process can be simultaneously and completely measured at high precision in real time.

Description

technical field [0001] The invention relates to a wireless measuring device for the cutting force of a machine tool in the process of precision micromachining, and belongs to the technical field of mechanical design. Background technique [0002] With the increasing demand for precision micro-systems in various fields such as aviation, aerospace, military, and medical treatment, precision micro-cutting technology has emerged as the times require. The precision micro-machining technology represented by the turn-milling composite processing technology has surpassed the traditional conventional metal cutting processing technology, and has become a supporting technology to make up for the defects of traditional silicon micro-machining methods in the field of non-silicon-based micro-complex structural parts processing. In the process of precision micro-turn-milling composite machining, cutting force is the key factor affecting the processing quality of micro-complex structural pa...

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Problems solved by technology

[0005] The above two cutting force measurement methods in the turning-milling composite machining process are mainly used in the experimental research of cutting force measurement in the cutting process of conventional parts. Although the basic function of cutting force measurement has been realized, the two methods still have the following problems: Disadvantages: Indirect measurement method Since the feed motor of the machine tool will have a corresponding current change only when there is feed motion in the corresponding direction, only the cutting force in the feed direction can be measured by this method, so This indirect measurement method cannot simultaneously and real-time measure the grinding force on the workpiece in three directions; the local wireless measurement method is limited by its own installation method, and most of the cutting force on the workpiece is borne by the installation mechanism , only a small part of the cutting force is transmitted to the sensor for measurement, which leads to the fact that the cutting force measured by the sensor is not a 100% true reflection of the actual force situation, and the measurement results have certain limitations

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