A device and method for processing U-shaped grooves of pipe fittings

Abstract

The invention discloses a device and method for processing U-shaped grooves of pipe fittings. The device includes a forming clip and a mandrel. The mandrel is composed of a clamping section and a forming section. protruding; the forming flap is a rotating member structure, and an annular groove corresponding to the annular protrusion is arranged on the inner side thereof, and the forming flap is equally cut into 2 to 3 parts with a cutting gap of 0.5 to 2 mm. The clamping section of the mandrel is processed with mutually symmetrical flat surfaces; the method is to install the processing device and the pipe to be processed on the lathe, and use the multiple feeds of the mandrel to complete the U-shaped groove of the pipe through static pressure forming. processing. The invention cooperates with the mandrel and the forming clip, utilizes the multiple feeds of the mandrel, and completes the processing of the U-shaped groove of the pipe fitting through static pressure forming, which solves the difficult problem of processing the shallow U-shaped groove of the small-diameter pipe fitting. Greatly improved production efficiency.

Description

technical field [0001] The invention belongs to the technical field of machining, and relates to cold processing of inner and outer circumferential locking grooves of pipe fitting parts, in particular to a device and method for processing U-shaped grooves of pipe fittings. Background technique [0002] At present, the processing of U-shaped grooves on pipe parts is usually carried out by rolling, spinning or expanding. However, when the diameter of the pipe fitting is less than Φ30mm, the height of the U-shaped groove on the pipe fitting is not greater than 1.5mm. Therefore, it is difficult to process the shallow U-shaped groove of the small-diameter pipe fittings by the above method. The U-shaped groove of the part design size, and the above-mentioned processing method is labor-intensive and low in production efficiency. Contents of the invention [0003] In order to solve the above problems, the present invention provides a device and method for processing U-shaped groo...

AI Technical Summary

Problems solved by technology

However, when the diameter of the pipe fitting is less than Φ30mm, the height of the U-shaped groove on the pipe fitting is not greater than 1.5mm. Therefore, it is difficult to process the shallow U-shaped groove of the small-diameter pipe fittings by the above method. The U-shaped groove of the part design size, while the above-mentioned processing method is labor-intensive and low in production efficiency

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