Pipe end groove forming machine

Abstract

The invention discloses a pipe end groove forming machine, which comprises a central shaft, a fixed device fixedly arranged at one end of the central shaft and a groove forming device which is fixed in the middle of the central shaft, wherein the fixed device is provided with at least two crank sliding block mechanisms which have the same structure and are symmetrically arranged on the circumference of the central shaft. The groove forming machine has the advantages that: the central shaft can be positioned on a steel pipe to be machined or the inner wall of a plastic pipe by two crank connecting rod mechanisms symmetrically arranged at one end of the central shaft, at least two forming cutters are arranged on the left side face of a cutter disk, the positions of the forming cutters are adjusted according to the apertures of the steel pipe to be machined or the plastic pipe, and a driving disk is manually rotated to drive the cutter disk to rotate, so that a groove at one end of the steel pipe or the plastic pipe can be formed. The device has a simple structure, is not required to be provided with an externally-connected power device, and can finish forming the groove at one end of the steel pipe or the plastic pipe only by manual operation, ensure the welding quality of the steel pipe and the adhesive bonding quality of the plastic pipe and improve construction efficiency and reduce equipment cost.

Description

technical field [0001] The invention relates to an auxiliary equipment used in steel pipe welding or plastic pipe bonding construction, in particular to a pipe end groove forming machine. Background technique [0002] The current steel pipe welding specification requires that in order to avoid welding defects affecting the construction quality of the pipeline when the steel pipes are butt jointed, the welded ends of the steel pipes must be beveled, that is, chamfered at the welded ends; [0003] In the existing pipeline construction, steel pipes are often cut off for installation of pipe fittings or pipe butt joints. Generally, steel pipe beveling machines are used on site, angle grinders or gas welding are used to form bevels on the ends of steel pipes, and electric beveling machines are also used in some cases; However, beveling with an angle grinder is labor-intensive and low in efficiency; gas welding is only suitable for carbon steel pipes, and stainless steel pipes can...

AI Technical Summary

Problems solved by technology

[0003] In the existing pipeline construction, steel pipes are often cut off for installation of pipe fittings or pipe butt joints. Generally, steel pipe beveling machines are used on site, angle grinders or gas welding are used to form bevels on the ends of steel pipes, and electric beveling machines are also used in some cases; However, beveling with an angle grinder is labor-intensive and low in efficiency; gas welding is only suitable for carbon steel pipes, and stainless steel pipes cannot be beveled; while electric beveling machines are costly and the equipment is limited by specifications. Less commonly used on site

[0004] There is also a plastic pipe used in pipeline construction. The butt joint of plastic pipes is generally connected by bonding. According to the requirements of relevant specifications, in order to ensure the quality of bonding, the end of the bonded plastic pipe must also be grooved. The current The method of on-site bevel forming is to use an angle grinder to grind the shape. On the one hand, the efficiency is low, and on the other hand, the quality of the bevel forming is poor; It is inconvenient to form grooves on large diameter plastic pipes

Images