Lifting worktable of laser cutting machine

Abstract

The invention discloses a lifting worktable of a laser cutting machine. The lifting worktable comprises a tray, a crank lifting mechanism and tray guide mechanisms. The crank lifting mechanism comprises a pair of transmission shafts. Each transmission shaft is sleeved with a driven chain wheel. In addition, a driving mechanism and a drive shaft are arranged. The drive shaft is fixedly provided with two rows of drive chain wheels, and transmission chains are arranged between the drive chain wheels and the driven chain wheels. Two cranks are fixed to the two ends of each transmission shaft correspondingly, supporting shafts are fixed to the outer ends of the cranks, and four supporting points are arranged at the positions, corresponding to the four supporting shafts, of the four corners of the tray. Each tray guide mechanism comprises a base and a guide bearing, wherein the base is provided with a guide rail used for limiting. By means of the lifting worktable of the laser cutting machine, a single motor is used for controlling the four parallel cranks to rotate, the tray is driven to conduct lifting movement through rotation of the cranks, perpendicular lifting of the tray is ensured through the four sets of guide mechanisms, synchronism of movement of the four corners of the tray is effectively achieved, and the worktable exchange stability is improved.

Description

technical field [0001] The invention relates to the technical field of cutting machines, in particular to a lifting workbench of a laser cutting machine, which is used to realize automatic exchange of material racks. Background technique [0002] At present, the known lifting structures of the exchange table include rack and pinion, sprocket chain, gear cam and hydraulic mechanism, which are not only complex in structure, but also have a relatively high failure rate and high maintenance cost, which is not conducive to the automation of the machine. Contents of the invention [0003] In order to overcome the above defects, the present invention provides a laser cutting machine lifting workbench, which has a simple structure and is convenient for maintenance and automatic operation. [0004] The technical solution adopted by the present invention in order to solve the technical problem is: a laser cutting machine lifting table, including a tray for supporting two groups of m...

AI Technical Summary

Problems solved by technology

[0002] At present, the known lifting structures of the exchange table include gear racks, sprocket chains, gear cams, and hydraulic mechanisms, which are not only complex in structure, but also have a relatively high failure rate and high maintenance costs, which is not conducive to the automation of the machine

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