Numerical control plasma cutting machine

Abstract

The invention discloses a numerical control plasma cutting machine. The machine structurally comprises a portal frame, a cutting device, a supporting grid, a protective cover, a machine body and a knocking device, the supporting grid is arranged on a workbench of the machine body, the knocking device is arranged below the supporting grid, the knocking device is arranged in the machine body, and the machine body is further connected with the portal frame in a sliding manner. Compared with the prior art, the cutting machine has the beneficial effects that through the combined arrangement of a transverse screw rod mechanism, a knocking mechanism, a molten metal collecting basin, a supporting frame, a power mechanism, a longitudinal screw rod mechanism and a connecting block, a knocking blockwith a rubber layer knocks the cutting bottom of a to-be-cut part through the impact force of liquid, molten metal is vibrated off through resonance of knocking, when the knocking block is reset, themetal to be molten resonates again by utilizing the inertia that a spring is stretched and needs to retract and reset, so that the molten metal can be completely vibrated off, and the molten metal isprevented from remaining on the to-be-cut part to form adhering slag.

Description

technical field [0001] The invention relates to the technical field of numerical control machine tools, in particular to a numerical control plasma cutting machine. Background technique [0002] The CNC cutting machine drives the movement of the machine tool through a digital program. When the machine tool moves, the cutting tool equipped with it randomly cuts the object. The CNC cutting machine can be divided into: CNC flame cutting machine, CNC plasma cutting machine, CNC cutting machine from the cutting method. High-pressure water jet cutting machine and CNC flame cutting machine have large cutting deformation, low cutting precision, low cutting speed, long cutting warm-up time and long perforation time, and it is difficult to adapt to the needs of fully automatic operation. The cutting of CNC high-pressure water jet cutting machine The speed is slow, the efficiency is low, and the cutting cost is high. The CNC plasma cutting machine has a wide cutting field and can cut a...

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Problems solved by technology

[0003] When CNC plasma cutting machine cuts stainless steel, due to the poor fluidity of molten stainless steel, it is not easy to blow off all the molten metal from the incision during the cutting process, and the thermal conductivity of stainless steel is poor. The bottom of the incision is easy to overheat, so that the molten metal that has not been blown off remains in the incision, which fuses with the lower part of the incision, and forms a so-called tumor or dross after cooling and solidification. Stainless steel has good toughness, and these tumors are very tough. It is not easy to remove, which brings great difficulties to machining

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