Blanket machine

Abstract

The invention discloses a piece cutter, which comprises a machine tool, wherein the machine tool is provided with a holding fixture, a tool apron and a stander; the stander is provided with a vertical cutting hydraulic cylinder; the lower end of the vertical cutting hydraulic cylinder is provided with a first punch knife; two sides of the vertical cutting hydraulic cylinder are provided with a first obliquely arranged cutting hydraulic cylinder and a second obliquely arranged cutting hydraulic cylinder respectively; lower end of the first obliquely arranged cutting hydraulic cylinder and the second obliquely arranged cutting hydraulic cylinder are provided with a second punch knife and a third punch knife respectively; and the tool apron is positioned on the lower side of the first punch knife and is provided with a tool groove. The piece cutter has the advantages that the piece cutter greatly improves quality of shearing area and punch efficiency; U-shaped beams after the punching need no straightening procedure and can be directly used in the next procedure; the movable tool apron is arranged, can be quickly adjusted according to models of the U-shaped beams, and can punch various models of U-shaped beams; and the piece cutter can perform following-up cutting to realize continuous operation of production lines, has good punching effect, reasonable structure and low noise, and meets the requirements of national environment protection.

Description

Technical field [0001] The invention relates to the field of punching machine devices, in particular to a punching machine provided with three punching knives. Background technique [0002] With the rapid development of the heavy-duty vehicle industry and the enhancement of safety awareness, the technical requirements for the design, manufacture and installation of "U" beam products are getting higher and higher. In the production process of "U" beams, the existing technological processes and configurations have matured day by day, such as uncoiling, leveling, roll forming and other production processes are already very mature, only there are many cut-to-length methods for the finished product after roll forming. problem. The existing "U" beam cutting methods generally include sawing, single-pole vertical cutting of the model, and so on. The biggest disadvantage of the above methods is that the quality of the shear section of the automobile longitudinal beam is poor, and it is ea...

AI Technical Summary

Problems solved by technology

The biggest disadvantage of the above methods is that the quality of the shear section of the car longitudinal beam is poor, and defects such as collapse, deformation, and tearing are prone to occur.

After the above cutting process, the "U" beam often needs to be corrected by manual shaping or removing part of the length. Not only the production efficiency is low, but also the labor intensity is high, and the cutting tool wears quickly and the noise is quite large. Can not meet the requirements of national environmental protection standards

Existing punching machines use fixed molds and fixed knives, and can only punch one type of "U" beam. If you need to punch other types of "U" beams, you can only replace the tool holder or the machine. Use troublesome and costly

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