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Automatic edge searching function of laser cutting machine

Views: 11     Author: heyu     Publish Time: 07-28-2020      Origin: fiber laser cutting machine

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  As a new industry, laser cutting equipment has a bright future. Several developed countries, represented by the United States, Germany and Japan, have developed rapidly in the field of laser processing industry. In major large-scale manufacturing industries, such as automobile, electronics, machinery, aviation, steel and so on, they have basically completed the replacement of traditional technology with laser processing technology, and entered the "optical manufacturing" era. Laser cutting machine has the advantages of good controllability of energy density, narrow cutting seam, small deformation of workpiece, good quality of cut surface, unlimited cutting shape and non-contact processing. The low cost, high efficiency and great potential in application of laser processing in industrial manufacturing have become the driving force for competition among major industrial countries in the world. They have actively supported laser technology as an important cutting-edge technology in their own countries, and have stepped up the formulation of national laser industry development plans. In China, laser processing technology has gradually entered various manufacturing industries, making it possible for China to develop its own laser processing technology With the improvement of product technology and the speed of upgrading, agile manufacturing is realized to meet the market demand for "personalized" products.

  In order to improve the utilization of sheet metal and facilitate programming, the straight edge of the plate must be parallel to the machining direction of x-axis before laser cutting. Generally, manual calibration is often used, which has low efficiency, large error, serious waste of materials, and affects the processing efficiency. We have applied the function of automatic edge searching in laser cutting machine. This function has the advantages of simple operation, high precision and short time-consuming.

  1. Introduction of automatic edge searching function

  The large format and medium thickness metal plates are placed on the closed machine tool table. The workers only need to press the "edge search" button, and the equipment will calculate the tilt angle of the plate in a few seconds. At the same time, the coordinate system of the machine tool will rotate accordingly to ensure that the X direction of cutting is parallel to the long straight edge direction of the plate.

  (1) system composition

  The hardware connection and composition required for realizing the automatic edge searching function are shown in Fig. (1), mainly including CNC, servo control, linear drive, sensor, etc.

  (2) the principle of automatic edge searching function

  As shown in Figure 2 below, when the sheet metal is placed on the worktable, if it is skewed, it may cause waste during cutting. If the inclination angle and origin of sheet metal can be sensed, the cutting process can be adjusted to fit the angle and position of sheet metal, so as to avoid waste. The function of automatic edge searching came into being.

  The automatic edge searching function is applied to the laser cutting machine, which solves the problem of low material utilization rate in the processing of large width and medium thickness metal plates, saves the time of calibrating plates, effectively improves the production efficiency, brings objective benefits to users, and improves the automation degree of processing and cutting machine.


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