Wire electrical discharge machining electrode wire tension detection and LCD image display device

Abstract

The invention discloses a wire electrical discharge machining electrode wire tension detection and LCD image display device. The device comprises a direct current power supply, a control module, an ADmodule, a strain type pressure sensor, an SD card module and an LCD screen, wherein the direct current power supply is connected with the control module, the AD module and the strain type pressure sensor are sequentially connected to form a sampling circuit, the strain type pressure sensor is used for detecting the analog quantity of the tension of an electrode wire and converting the analog quantity into a digital quantity through the AD module, the control module is used for calculating the relation between the digital quantity and the actual tension value after the digital quantity is received and correcting the relation, moreover, on the basis, an internal algorithm program processing is carried out, the image and the numerical value (including the real-time tension and the tension average value of the front n seconds) of the tension along with time changes are displayed on the LCD screen in real time, and the SD card module is used for storing the tension value in a timed mode. According to the device, the tension of the electrode wire can be detected in real time, and the change trend can be displayed in the form of the image.

Description

technical field [0001] The invention relates to the technical field of wire electric discharge machining, in particular to a wire electric discharge wire tension detection and LCD image display device. Background technique [0002] The basic working principle of wire electric discharge cutting technology is to use a continuously moving thin metal wire (called electrode wire) as an electrode to perform pulse spark discharge on the workpiece to remove metal and cut into shape. Its characteristics are as follows: [0003] (1) There is no significant mechanical cutting force during processing. Regardless of the hardness and stiffness of the workpiece, as long as it is conductive or semi-conductive, it can be processed, but non-metallic conductive materials cannot be processed. [0004] (2) Small holes and parts with complex shapes can be processed, but blind holes cannot be processed. [0005] (3) The loss of the electrode wire is small, and the machining accuracy is high. ...

AI Technical Summary

Problems solved by technology

[0011] In order to solve the defect that the general traditional wire cutting machine tool cannot detect the wire tension, the present invention provides a wire electric discharge wire tension detection and LCD image display device based on STM32, which is applied to wire electric discharge processing. The device can It realizes the real-time detection of the tension of the electrode wire and presents the change trend in the form of images, which is very beneficial for understanding the processing situation and making timely adjustments, and provides a basis for subsequent improvement of processing stability

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