A high-precision and high-stability oxyacetylene circle cutting device

Abstract

The invention discloses a high-precision high-stability oxyacetylene circle cutting device which is used in cooperation with an oxyacetylene cutting gun for cutting circles on flat plates. The high-precision high-stability oxyacetylene circle cutting device comprises an outer sleeve pipe, a cutting gun auxiliary rotation mechanism, a sliding rod, a locating column, a sliding rod jackscrew, a locating column auxiliary rotation mechanism and an annular magnet. The cutting gun auxiliary rotation mechanism is arranged in the outer sleeve pipe and comprises an inner sleeve pipe, an upper bearing and a lower bearing. An inner ring of the upper bearing and an inner ring of the lower bearing are arranged on the concave portion of the upper end of the inner sleeve pipe and the concave portion of the lower end of the inner sleeve pipe respectively. At least one side face of the sliding rod is a plane, and the sliding rod is vertically fixed to the side face of the outer sleeve pipe. The locating column comprises a column body. The locating column auxiliary rotation mechanism is arranged in the inner circle of the annular magnet. The lower end of the locating column is arranged in the inner sleeve pipe of the locating column auxiliary rotation mechanism. The high-precision high-stability oxyacetylene circle cutting device can guarantee that a cutting gun can not deviate when being operated only through hands, the machining precision is ensured, and work efficiency is improved.

Description

technical field [0001] The invention relates to the field of mechanical technology, in particular to a high-precision and high-stability oxyacetylene circle cutting device. Background technique [0002] In the production and processing of industrial enterprises, it is often necessary to process various circular plates with different radii at the work site, or to open various circular holes with various radii on the plate. Since the processing position or size can only be determined on site, it is necessary to operate Workers use oxyacetylene cutters and other devices to manually operate to complete the work. [0003] In the past, when it was necessary to determine the location of the hole on site, it was usually done by first planning the circular line and then completing it by manual gas cutting. Since the cutting gun is controlled by hand, the accuracy is difficult to control, and the cutting effect of this method is not good. Ideal, very inefficient. [0004] At present...

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Problems solved by technology

[0003] In the past, when it was necessary to determine the location of the hole on site, it was usually done by first planning the circular line and then completing it by manual gas cutting. Since the cutting gun is controlled by hand, the accuracy is difficult to control, and the cutting effect of this method is not good. ideal, very inefficient

[0004] At present, in actual operation, a circle-cutting auxiliary device with a positioning column and a cutting gun sleeve is used for operation. The device performs circle cutting; when operating with bare hands, the tip will have a certain deviation under the condition of uneven operation force, and the cutting gun will also shake in the casing to produce lateral displacement, and the working distance of the cutting gun must always be controlled , the accuracy is difficult to control; due to these factors, it is inevitable that the circular edge after cutting will be uneven, resulting in a large deviation in processing accuracy

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