Welding positioning device for nitrogen pressure pipeline

Abstract

The invention discloses a welding positioning device for a nitrogen pressure pipeline. The welding positioning device comprises a bottom plate, pulleys, a tool cabinet, an adjusting pipe, a lead screw, a gear disc, a rotating disc, a rotating handle, a supporting plate, an ash suction device, a supporting block, a first base, an air cylinder, a positioning plate, an ash waiting box, a motor, a second base, a fixing column, a telescopic rod, a locking valve and the like. The welding positioning device for the nitrogen pressure pipeline is reasonable and simple in structure, low in production cost and convenient to install; through the arrangement of the lead screw, the rotating handle is rotated to drive the gear disc to rotate, the gear disc drives the lead screw to move up and down and drives the telescopic rod to move at the same time, and locking and fixing are conducted by rotating the locking valve when the device is adjusted to the proper height, so that the working height can beadjusted, an operator has a comfortable working position, and the working efficiency can be improved; and through the arrangement of the positioning plate, a rear sliding single-hole welding positioning block, a front single-hole welding positioning sliding block, a sliding plate, a square tube clamping sliding block, a square tube limiting sliding block and a double-hole welding positioning sliding block are arranged to control the position sequence of parts needing to be welded so as to accurately position the parts.

Description

Technical field: [0001] The invention relates to the field of welding positioning, in particular to a welding positioning device for nitrogen pressure pipelines. Background technique: [0002] Nitrogen, chemical formula N 2 , is a colorless and odorless gas. The chemical properties of nitrogen are very inactive. It can only react with hydrogen to form ammonia under the conditions of high temperature, high pressure and catalyst; it can combine with oxygen to form nitric oxide under the condition of discharge; even active metals such as Ca, Mg, Sr and Ba are only It can only react with heating. This high chemical stability of nitrogen is related to its molecular structure. Two N atoms are combined with triple bonds to form a nitrogen molecule, including one σ bond and two π bonds, because the π bond is the first to be attacked in a chemical reaction, and the N 2 The energy level of the π bond in the molecule is lower than that of the σ bond, and it is difficult to open the...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a welding positioning device for nitrogen pressure pipelines in order to solve the above problems, which solves the problem that the parts welded by nitrogen pressure pipelines have different shapes and cannot be accurately positioned and welded, making welding difficult. Although ordinary tooling can be welded, the welding place cannot be on the same axis. The welded products will have different specifications, resulting in large errors in assembly, resulting in poor product quality and unsightly appearance.

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