A sliding table lifting mechanism for laser cutting

Abstract

The invention discloses a slide table ascending and descending mechanism for laser cutting, and relates to the technical field of laser cutting. The slide table ascending and descending mechanism for laser cutting comprises a moving plate and a fixing seat, wherein the moving plate is in vertical arrangement; the back side of the moving plate is provided with a linear guide rail in the vertical direction; a slide block is movably arranged on the linear guide rail, and is connected with the front side of the fixing seat; an installing plate is horizontally arranged in the fixing seat; a motor is arranged on the installing plate; a driving shaft of the motor passes through the installing plate to be connected with one driving gear; a rolling ball lead screw nut is vertically arranged at the front side of the fixing seat; a driven gear engaged with the driving gear is arranged outside the rolling ball lead screw nut in a sleeving way; a rolling ball lead screw rod is arranged in the rolling ball lead screw nut; the two ends of the rolling ball lead screw are fixed on the moving plate. During the stroke increase of the Z axis of the laser cutting machine, the simultaneous increase of the weight of the fixed side and the moving side is not needed, so that the cutting speed is accelerated.

Description

technical field [0001] The invention relates to the technical field of laser cutting, and relates to a sliding table lifting mechanism for laser cutting. Background technique [0002] With the popularization of laser equipment in the field of cutting and processing, the travel of the Z-axis of the laser cutting head is required to be longer and longer. [0003] The current Z-axis structure mostly uses the screw to rotate, and the nut moves up and down. The longer the stroke, the longer the fixed side of the screw. Based on the requirement that the cutting head must not touch the plate during laser cutting, generally when the Z-axis is at the upper limit of the stroke, the lower edge of the cutting head is slightly higher than the lower end surface of the beam. [0004] Then, according to the design scheme of screw nut movement, there will be such problems: 1. The longer the stroke, the longer the connecting plate measured by the screw; 2. The longer the stroke, the longer t...

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Problems solved by technology

[0004] Then there will be such problems according to the design scheme of screw nut movement: 1. The longer the stroke, the longer the connecting plate measured by the screw; 2. The longer the stroke, the longer the connecting plate needs to be made on the moving side of the nut to connect the laser head attached to the moving nut

With such a structure, when the stroke increases, both the fixed side of the screw rod and the moving side of the nut will increase the weight, and the increase in weight will hinder the increase in cutting speed.

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