K-shaped groove cutting device for flame groove robot

Abstract

The invention provides a K-shaped groove cutting device for a flame groove robot. The K-shaped groove cutting device for the flame groove robot comprises a robot, an operation platform, a laser scanning instrument, a cutting gun and a control system, wherein the operation platform is used for arranging a to-be-machined work piece; the laser scanning instrument is capable of moving along the cutting gun to scan the cutting gun so as to guarantee the cutting straightness of the cutting gun before cutting; posture, position and angle parameter information of the cutting gun is set in the control system in an off-line programming way; the control system is used for comparing the actual posture information of the cutting gun with the parameter information, set in the control system, of the cutting gun, and automatically adjusting the posture and travel track of the cutting gun according to a comparison result so as to perform groove cutting on the work piece. By the structure, the K-shaped groove cutting device provided by the invention is capable of shortening the machining time and lowering the production cost and is direct, convenient and stable in operation; moreover, the posture and the travel track of the cutting gun are adjusted automatically in an off-line programming way, so groove cutting of the work piece can be implemented without turnover of the work piece.

Description

technical field [0001] The invention belongs to the technical field of flame cutting in the production and construction of steel structures, and in particular relates to a K-type groove cutting device for a flame-grooving robot that uses a robot to flame-cut the K-shaped groove of a steel structure. Background technique [0002] With the development of the national economy, there is a strong demand for building more and larger buildings with large spaces and super-large spaces such as sports, leisure, exhibitions, airports, hangars, etc. This kind of building form is generally a space steel structure, and the structure type can be divided into grid frame (light steel), space truss (heavy steel) and so on. These buildings usually have the characteristics of large span, unique shape, complex stress and regional symbolic significance after completion. [0003] In these long-span steel structures, it is necessary to perform secondary groove cutting on steel plate workpieces to ...

AI Technical Summary

Problems solved by technology

The welding of steel structure parts needs to cut K-shaped or V-shaped grooves at the welding parts of the parts. In this case, the flame cutting method of plane cutting cannot solve the above groove cutting requirements, so it is necessary to develop a flame groove cutting mechanism or process , to meet the requirements of parts bevel cutting, among which the processing of K-shaped bevel is the most complicated

There are many cutting and forming methods for the existing K-shaped grooves. For example, the traditional method is used to cut in stages. This method needs to turn the part over and then perform a second cut. It is not only time-consuming, but also difficult to guarantee the processing accuracy.

[0005] Patent No. CN 202388088 U discloses a gantry-type multi-head flame cutting machine K-shaped bevel cutting device, which adopts double cutting nozzles for synchronous cutting, increases the number of cutting nozzles while reducing cutting deformation, and increases equipment investment and operation difficulty , the cutting risk is uncontrollable; at the same time, because the angle selection of the cutting nozzle is different, it also greatly affects the cutting effect; and another flame cutting machine groove cutting flame three torch device disclosed in the patent No. CN 202344098 U , using the method of synchronous cutting with three cutting nozzles to realize K-shaped bevel processing. In addition to the high operation requirements and complicated and cumbersome operation of this equipment, the large loss rate of raw materials cannot be ignored.

[0006] The above-mentioned various existing flame bevel cutting devices cannot automatically calculate and generate processing parameters according to different plate thicknesses and bevel forms, or perform automatic positioning of the cutting gun and bevel cutting work according to appropriate processing parameters, resulting in a low degree of automation , Insufficient processing accuracy, high cost, high labor intensity, and high requirements for the experience of operators; in addition, the existing flame bevel cutting gun cannot automatically rotate 180°, resulting in the need to turn over the workpiece when processing double-sided bevels. Low processing efficiency

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