A laser cutting machine

Abstract

The invention discloses a laser cutting machine. The laser cutting machine comprises a cutting box and an auxiliary worktable, wherein a side positioning device is arranged between the cutting box and the auxiliary worktable and comprises a pneumatic portion and a sliding portion; the pneumatic portion comprises a bottom plate, a cylinder and a positioning block; the bottom plate is fixed on a side surface of the auxiliary worktable; the cylinder penetrates in the side surface of the auxiliary worktable; the positioning block is fixed on a side wall of the cutting box; a cylinder supporting rack which is fixedly connected with the bottom plate is arranged at an end of the cylinder; a piston rod of the cylinder is connected with a positioning plate; the shape of the positioning block is matched with that of the positioning plate, so that a linear kinematic pair is formed; the sliding portion comprises a guide track and a sliding block; the guide track is fixed on the side surface of the worktable; and the sliding block slides on the guide track and is fixedly connected with the positioning plate. In an exchanging jack-up process of the cutting box, the positioning plate extends and is in contact with the positioning block by using the cylinder, and the cutting box which is restrained by the positioning plate moves linearly.

Description

technical field [0001] The invention relates to a laser cutting machine, in particular to a two-dimensional and three-dimensional laser cutting machine. Background technique [0002] Laser cutting technology is more and more widely used in industry due to its flexible processing and quality assurance characteristics, especially the processing of plates. The stable and reliable processing environment is the most popular feature of this technology. In the production of sample parts or batch trial production and the small batch production process before mass production, the application of this new technology can create high profits; The sprocket chain drags the exchange device and the electronic induction switch to ensure the repeated positioning accuracy between the cutting box and the auxiliary workbench. Due to the lack of rigidity of the roller chain on the sprocket chain drag exchange device, the chain is prone to elongation and deformation during use, the delay in the re...

AI Technical Summary

Problems solved by technology

Due to the lack of rigidity of the roller chain on the sprocket chain drag exchange device, the chain is prone to elongation and deformation during use, the delay in the response of the sensor switch, and the inertia of the cutting box during movement, etc., it is easy to cause the cutting box and auxiliary The misalignment between the worktables makes it impossible to achieve the positioning accuracy required for the exchange movement of the cutting box or the exchange system is paralyzed due to the failure of the positioning function; it directly reduces the production efficiency of the machine tool and increases the after-sales maintenance cost of the enterprise

[0003] In order to improve the cutting efficiency of machine tools, most machine tools adopt exchangeable workbenches, but the cutting box usually adopts the sprocket chain to drag the exchange device to realize the exchange, which generally has problems such as low repeat positioning accuracy and easy failure of the exchange system. In severe cases, it may even cause the parts of the moving part of the exchange system to be stuck, broken, etc.; the failure of the exchange movement not only reduces the production efficiency of customers, but also increases the maintenance rate of equipment manufacturers

Images