Fixed-angle chamfering method and special tool of square rubber bar

Abstract

The invention relates to a fixed-angle chamfering method and a fixed-angle chamfering special tool of a square rubber bar and belongs to the technical field of overhauls of power supply transformers. The technical scheme is that the fixed-angle chamfering special tool of the square rubber bar includes a base (1), two vertical plates (8) which are arranged in parallel, a press plate (5), a support plate (7) and a pressing lead screw (4), wherein the two vertical plates which are arranged in parallel form a groove structure (3), the width of the groove structure is matched with that of the square rubber bar, the height of each of the vertical plates is larger than that of the square rubber bar, the two parallel-arranged vertical plates are metal plates, the side edges of the two vertical plates are all an inclined plane (3) with an angle of 20-30 degrees, and the side edge length, the angle and the height of the two vertical plates are completely the same. The fixed-angle chamfering special tool of the square rubber bar is simple in operation, easy to master, guarantees the tight sealing and the overhaul quality, greatly avoids secondary reworking caused by man-made reasons, and reduces the workload of staff; and greatly increases the working efficiency due to the fact that the work which needs one hour to complete can be done only in 20 minutes now.

Description

technical field [0001] The invention relates to a method for obliquely cutting a square rubber bar at a fixed angle and a special tool, belonging to the technical field of power supply transformer overhaul. Background technique [0002] At present, the main work of the overhaul of power supply transformers of all levels is to overhaul the hanging cover (core) and replace the sealing rubber pads of each connecting part. The most important task is to replace the sealing rubber bars of the main oil tank. The sealing rubber bars are pasted with square rubber bars. The formed ring glue bar. The square rubber bars used in the overhaul of the power supply transformer are all square rubber bars provided by the manufacturer of the rubber bars, and the main oil tank cover of the power supply transformer needs to be replaced with a ring-shaped rubber bar, which cannot meet the requirements; if you want to get a suitable The size of the circular rubber bars also needs to be glued on si...

AI Technical Summary

Problems solved by technology

The square rubber bars used in the overhaul of the power supply transformer are all square rubber bars provided by the manufacturer of the rubber bars, and the main oil tank cover of the power supply transformer needs to be replaced with a ring-shaped rubber bar, which cannot meet the requirements; if you want to get a suitable The size of the circular rubber bars also needs to be glued on site. According to the process requirements, the rubber bars are tightly bonded and tightly seamed to ensure no leakage. However, it is generally difficult to do it on site. The main difficulty is that the two ends of the rubber bars that need to be pasted cannot be guaranteed. The angles of the cut bevels are the same. Since there is no special tool, the angles of the cut bevels at both ends of the glue bar that needs to be pasted are consistent, which is very difficult, labor-intensive, and inefficient. It has always troubled the on-site power supply transformer maintenance work

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