Workpiece positioning mechanism of laser cutting machine

Abstract

The invention discloses a workpiece positioning mechanism of a laser cutting machine. The workpiece positioning mechanism is arranged on the lower portion of a cutter of the laser cutting machine and comprises a base arranged on a workbench of the laser cutting machine. A rotary platform is arranged on the base. The upper portion of the rotary platform is connected with a telescopic shaft. A T-shaped platform is arranged on the upper portion of the telescopic shaft. The two ends of an upper supporting plate of the T-shaped platform are each provided with a four-connecting-rod unit, and the upper portion of each four-connecting-rod unit is fixedly connected with a clamping head. Each four-connecting-rod unit comprises two first connecting rods and two second connecting rods which are arranged side by side, and each clamping head is connected with the corresponding first connecting rods and second connecting rods. Each clamping head comprises a mounting rack. The positioning mechanism is simple in structure, easy to operate and high in positioning precision; the positions of the clamping heads are adjusted through four-connecting-rod mechanisms, the distance of the clamping heads is measured in time through a distance sensor, and therefore the distance of the clamping heads is adjusted according to the workpiece size; and adsorption layers on the inner sides of clamping jaws can provide intermittent adsorption force so as to ensure that a workpiece is clamped more stably.

Description

[0001] Technical field: [0002] The invention relates to the technical field of laser processing equipment, in particular to a workpiece positioning mechanism of a laser cutting machine. [0003] Background technique: [0004] Carbon dioxide laser cutting machine is a cutting machine tool suitable for metal and non-metal plates. The laser cutting machine equipped with a high-power laser (above 1500W) can cut various plates on a plane (three-axis control) or three-dimensional surface (five-axis control). This kind of laser cutting machine not only has the general characteristics and functions of traditional plate processing equipment, but also has other equipment, such as shearing machine, oxy-acetylene cutting, drilling machine, milling machine, turret punching machine and other metal plate processing machine tools, etc. Advantages of comparison. Based on the original processing function and supplemented by automatic control, the laser cutting machine can process various sha...

AI Technical Summary

Problems solved by technology

[0005] When the laser cutting machine is performing cutting operations, it is necessary to position the workpiece to be cut. The existing positioning mechanism has complex structure, low positioning accuracy, and poor adjustment performance. How to design a positioning mechanism with simple structure and high positioning accuracy is a challenge for those skilled in the art. Technical difficulties faced

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