Portable cantilever-type numerical control cutter

Abstract

A portable cantilever-type numerical control cutter is characterized in that a transverse stepping motor drives a duplicate gear through a planetary gear reducer, an upper gear and a lower gear of the duplicate gear are engaged with a transverse moving rack rod and a balance rack rod respectively, a cutting torch support is fixedly mounted at the front ends of the transverse moving rack rod and a transverse guide rod, a lifting rack rod is arranged on the cutting torch support, a bevel gear on a lifting motor is engaged with the lifting rack rod, and a cutting torch is mounted on a fixed support at the lower end of the lifting rack rod. A longitudinal stepping motor drives the planetary gear reducer, a longitudinal gear on the reducer is engaged with a rack on a guide rail, a guide wheel shaft and an eccentric guide wheel shaft which are distributed on two sides of the guide rail are fixed to two ends of the bottom edge of a trolley, and guide wheels close to the guide rail are mounted on the wheel shafts. The portable cantilever-type numerical control cutter is high in moving precision and fine in transverse movement stability, longitudinal movement is pure rolling with gapless guide so that the portable cantilever-type numerical control cutter is excellent in cutting precision and comparable to a gantry-type numerical control cutter, and the portable cantilever-type numerical control cutter is easy in mounting and carrying and long in service life.

Description

technical field [0001] A cutting processing equipment for cutting metal components. Background technique [0002] At present, the cutting processing equipment is mainly based on the gantry CNC cutting machine. Although the equipment has a large cutting range and good process performance, it is expensive to manufacture and occupies a large area. It needs fixed workshops and supporting facilities such as hoisting and driving, so the one-time investment is large. [0003] Invention patent No. 02223427.6 proposes a "portable CNC gas cutting machine", which is characterized by simple structure, small size, light weight, portability and low cost, can cut metal components of any shape, high work efficiency, suitable for large-scale production, single Parts production and maintenance operations. But there are following weak points: [0004] 1. The reduction device in the horizontal and vertical moving mechanism is a worm gear mechanism. The disadvantage of this mechanism is that...

AI Technical Summary

Problems solved by technology

During long-term use, the contact surface on the roller is easy to wear and cause the gap to increase, which seriously affects the longitudinal movement accuracy

In addition, the rollers are easy to slip on the track, which also affects the accuracy of longitudinal movement

[0006] 3. Since there is only one laterally moving rack bar that moves the cutting nozzle laterally, the accuracy of lateral movement and the balance of operation are not ideal

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