Numerical control linear cutting machine tool capable of prolonging service life of molybdenum wire

Abstract

The invention discloses a numerical control linear cutting machine tool capable of prolonging the service life of a molybdenum wire. The numerical control linear cutting machine tool comprises a base,a main rack, a workbench and a wire conveying mechanism, wherein the main rack is fixed to a supporting block on the right side of the base; the workbench is connected with the base; the numerical control linear cutting machine tool further comprises an oscillation auxiliary cutting mechanism; the oscillation auxiliary cutting mechanism comprises a power output component, a crank connecting rod component and a box body component; the power output component is connected with the main rack and the crank connecting rod component; the crank connecting rod component is connected with the box bodycomponent; and the box body component is fixed to the main rack and connected with the wire conveying mechanism. The wire conveying mechanism comprises an up-down distance adjusting device and an up-down wire feeding device; the up-down distance adjusting device is connected with the main rack; and the up-down wire feeding device is connected with the up-down distance adjusting device. According to the numerical control linear cutting machine tool, under the condition that the molybdenum wire is short, a wire frame in the wire feeding mechanism can rapidly move in a reciprocating manner, the molybdenum wire can achieve the function of cutting a workpiece, the short molybdenum wire is fully utilized, and the service life of the molybdenum wire is prolonged.

Description

technical field [0001] The invention relates to an electric spark control machine tool, in particular to a cutting numerical control machine tool. Background technique [0002] CNC wire cutting machine tools are divided into fast wire cutting machine tools and slow wire cutting machine tools according to the wire speed of the electrode wire. The existing fast wire cutting machine tools include a bed, a worktable, and a wire conveying mechanism. [0003] The molybdenum wire in the existing fast wire cutting machine has the following shortcomings: 1. The molybdenum wire is worn quickly and easily broken as a consumable part. When the molybdenum wire is broken for many times, the length becomes shorter, and the wire feeding servo motor rotates slowly or not. The molybdenum wire cannot be conveyed due to the movement of the molybdenum wire, so the workpiece cannot continue to be processed. At this time, a new molybdenum wire must be replaced, and the replaced molybdenum wire is...

AI Technical Summary

Problems solved by technology

[0003] The molybdenum wire in the existing fast wire cutting machine tool has the following disadvantages: 1. As a consumable part, the molybdenum wire wears quickly and is easy to break. The molybdenum wire cannot be transported, so the workpiece cannot be continued. At this time, a new molybdenum wire must be replaced, and the replaced molybdenum wire has not been used, thus shortening the service life of the molybdenum wire; Most of them have a single wire drum structure, and the wire drum is placed at the end or middle of the machine tool, so that the distance between the cutting part and the wire drum is relatively long, which greatly increases the length of the molybdenum wire exposed outside the wire drum, and the molybdenum wire has a lot of contact with the machine tool parts. As a result, the load of the molybdenum wire is greatly increased during the reversing, and the wire is easy to break, thereby shortening the service life of the molybdenum wire; at the same time, it is easy to damage the workpiece and reduce the machining accuracy.

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