Device for drilling hole in flange on valve

Abstract

The invention discloses a device for drilling holes in flanges on a valve. The device comprises a drilling mechanism and a clamping mechanism, wherein the drilling mechanism comprises a supporting column and a hydraulic cylinder, the supporting column is distributed along the axial direction of the flanges, a first ferrule and N sliding rods are arranged on the supporting column, N is 1, 2, 3, 4, 5 or 6, the sliding rods are circumferentially distributed by using the supporting column as a center, the sliding rods are arranged in parallel with the surfaces of the flanges, and when N is not equal to 1, an included angle between adjacent sliding rods is 60 or or180 degrees; each sliding rod is provided with a drilling unit, and the drilling unit is slidably connected with the corresponding sliding rod through a sliding block; the first ferrule is hinged to the sliding blocks through the equal-long connecting rods, and the first ferrule is in transmission connection with the hydraulic cylinder; each drilling unit comprises a drill bit and the drilling direction of the drill bit is in parallel with the axial direction of the flanges. The device for drilling holes in the flanges on the valve has the advantages that the processing accuracy is high and the adaptability is good; the sealing performance during connection of the flanges with external pipes is ensured, and the flanges at the two ends of the valve can be automatically drilled.

Description

technical field [0001] The invention relates to the technical field of mining equipment, in particular to a device for drilling holes on an upper flange of a valve. Background technique [0002] A valve is a device used to control the direction, pressure, and flow of a fluid in a fluid system. It is a device that makes or stops the medium in the piping and equipment and controls its flow. [0003] The valve is a control component in the pipeline fluid delivery system. It is used to change the passage section and the flow direction of the medium, and has the functions of diversion, cut-off, throttling, check, diversion or overflow relief. Valves used for fluid control range from the simplest shut-off valve to various valves used in extremely complex automatic control systems. Valves for industrial pipelines. It can be used to control the flow of various types of fluids such as water, steam, oil, gas, mud, various corrosive media, liquid metals and radioactive fluids. The wo...

AI Technical Summary

Problems solved by technology

[0005] like figure 1 , 2 As shown, the main structure of the valve is mostly cylindrical, and both ends of the valve are provided with annular flanges. On the edge of the flange, there are 6 threaded holes for connecting external pipelines. The connection lines of these threaded holes form six edge shape, etc.; the existing technology cannot adapt to valves of different sizes when drilling holes, and the fixture needs to be replaced constantly, and sometimes a process hole needs to be processed for positioning; this affects the processing accuracy

Moreover, when the flange is drilled, it is easy to cause the edge of the flange to bend downwards, and severe fractures will occur.

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