Automatically controlled high-precision crystal wire electrode cutting machine

Abstract

The present invention relates to cutting equipment and is especially one computerized efficient and high-precision wire electrode cutting machine. The cutting machine consists of frame, winding cylinder driven by one DC motor to rotate in either right direction or reverse direction, Z-axis bench, Y-axis bench, tension mechanism with one pair of tension wheels controlled by one pair of micro cylinders to support the cutting wire, oscillating mechanism with one pair of oscillating support wheels and fixture. The cutting machine is used mainly for cutting silicon wafer, quartz glass, ceramic, jewel, magnesia and other hard and fragile material.

Description

Technical field: [0001] The invention relates to a mechanical device, in particular to a high-efficiency and high-precision crystal wire cutting machine controlled by a computer. Background technique: [0002] At present, there is no crystal wire cutting machine produced in China that is similar to the international similar products. Take the 206401 crystal wire cutting machine produced by Western Laser Technology Co., Ltd. as an example. At present, such products abroad generally have the following deficiencies: [0003] (1) The design of the winding mechanism is unreasonable. It directly drives the triangular screw for wiring by the DC speed regulating motor. Because the pitch is very small, only 0.6mm single-start thread, the height h of the single-sided thread is h=0.325mm, and the working height of the double-sided thread is 2h=0.65mm. It is not suitable to adopt such screw thread to transmit the motion with a certain torque, so that the tension on the metal wire is ...

AI Technical Summary

Problems solved by technology

Although the length of the wire winding part of the wire drum is 63mm and the outer diameter is Φ100mm, the maximum length of the wire winding is only 35m, which is not conducive to maintaining the dimensional accuracy of the cut wire diameter

[0005] (3) The frame adopts a plate-type structure assembled with screws, which has poor overall rigidity and is easy to deform

The high-speed moving metal secant can bring the grinding liquid to the winding drum, which affects the service life of the winding drum, and there is no device to collect the grinding liquid and prevent the grinding liquid from splashing

[0007] (5) There is no back pressure in the pneumatic tensioning part, and the tension system is relatively unstable

[0008] (6) Each stepping motor is driven by a sliding trapezoidal small screw pair, which has large frictional resistance and relatively large driving power

[0009] (7) Only the metal cutting wire with the longest length of 35m can be used, and the rotation direction of the winding drum cannot be changed at any position

[0010] (8) The wire winding device and the DC speed regulating motor are installed on the large vertical slide plate, and the Z-axis screw is rotated to make it feed downward, which is not conducive to the stable operation of the cutting wire during cutting, the rigidity is poor, and the vibration is also large

[0011] (9) The feed part of the Y-axis table does not have a manual feed device, which is not conducive to the adjustment of the Y-axis table

Images