Bell-type transformer oil tank lower-section bent bottom plate hole-forming tool

Abstract

The invention discloses a bell-type transformer oil tank lower-section bent bottom plate hole-forming tool which includes an electromagnet base, an electric control system, a Y-direction moving guiderail, a Y-direction driving gear set, a sliding block A, an around-X-direction rotating driving gear, an X-direction moving rotation structure group, an X-direction driving gear group, a cutting gun clamping device, a fixing bolt group and a laser pointer. A device whole body is fixedly installed on the plane of a lower-section bottom plate through the electromagnet base, and the electrical control system is electrically connected with a cutting gun. A high-precision scale is arranged on the Y-direction moving guide rail, and the sliding block A sleeves the outside of the Y-direction moving guide rail. The bell-type transformer oil tank lower-section bent bottom plate hole-forming tool is compact in overall structure, convenient to maintain, and simple and flexible to operate; after use, laying-off and marking process of a pipe joint installation hole are omitted, and the center of the pipe joint installation hole is positioned only according to the drawing size; and meanwhile the sizeand positioning size of the pipe joint installation hole are uniform, so that the hole-forming quality and working efficiency of the pipe joint installation hole are greatly improved.

Description

technical field [0001] The invention relates to the field of hole-drilling devices, in particular to a hole-drilling tool for the lower bent bottom plate of a bell-type transformer oil tank. Background technique [0002] The shape and structure of the workpiece (bending bottom plate of the lower section of the fuel tank) is shown in the attached figure 2 . The range of the bending angle α of the workpiece is 90°-160°, and the hole with a diameter of D (165mm-325mm) is cut after the workpiece is bent. The invention discloses a conventional bell-jar type transformer oil tank lower section bent bottom plate opening tooling, which is a tool for opening holes on the bent bottom plate of the lower section oil tank (especially when the vertical surface and the inclined facade coexist). A drilling device for cutting mounting holes for cooling pipe joints. [0003] The traditional method of cutting the mounting holes for the cooling pipe joints on the lower bending base plate is t...

AI Technical Summary

Problems solved by technology

[0004] The object of the present invention is to provide a tool for opening holes in the lower bent bottom plate of a bell jar type transformer oil tank to solve the problem of low working efficiency and low positioning accuracy of the traditional lower bent bottom plate cutting method, and the cutting surface is jagged and not smooth , increasing the difficulty of welding and easily forming welding defects

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