Device and method for controlling wire conveying speed based on heavy hammer displacement

Abstract

The invention discloses a device and method for controlling the wire conveying speed based on heavy hammer displacement. The device comprises a first wire cylinder, a second wire cylinder, a pull wiretype displacement sensor, a framework, a plurality of fixed guide wheels and a plurality of movable guide wheels. A pull wire led out from the lower end of the pull wire type displacement sensor is connected with a connecting piece, and a heavy hammer is suspended at the lower end of the connecting piece through a suspension wire. The connecting piece is installed on a guide rail and can slide upand down along the guide rail. The plurality of fixed guide wheels are fixed on the framework, the plurality of movable guide wheels are arranged on the connecting piece, a molybdenum wire is wound on a first wire cylinder, and the molybdenum wire is led out from the first wire cylinder, passes through the movable guide wheels on the connecting piece and then is wound on a second wire cylinder. The defect that few devices are used for detecting the tension between the wires is overcome, a counter weight reaches and is kept at the preset ideal position by adjusting the rotating speed of the wire cylinders, and therefore the purpose of controlling the tension between the wires to be constant is achieved. The device has the advantages of being long in adjusting period and convenient to adjust.

Description

Technical field: [0001] The invention relates to the technical field of wire electric discharge cutting, in particular to a device and method for controlling wire feeding speed based on weight displacement. Background technique: [0002] Wire-cut electric discharge machine is currently the most commonly used wire-cut machine, and the double-wire-drum wire-cut machine greatly increases the storage capacity of electrode wire, and the electrode wire can be reused, which improves the processing accuracy and efficiency of parts. However, whether the tension between the wires is constant, that is, whether the wire feeding speed of the double wire drum is constant will directly affect the accuracy of the processed parts. In order to guide the subsequent processing process, the tension between the wires must be detected in real time. Tension, that is, the molybdenum wire bypasses the guide wheel, transmits the force to the piezoresistor below, and then converts the piezoresistor val...

AI Technical Summary

Problems solved by technology

However, whether the tension between the wires is constant, that is, whether the wire feeding speed of the double wire drum is constant will directly affect the accuracy of the processed parts. In order to guide the subsequent processing process, the tension between the wires must be detected in real time. Tension, that is, the molybdenum wire bypasses the guide w

Images