Electric pipe-cutting threading machine

Abstract

The invention relates to an electric pipe-cutting threading machine, aiming at overcoming the problems of narrow application range and low machining accuracy of the common threading machines. The electric pipe-cutting threading machine comprises an automatic cutter-withdrawal device, a die-head, a scraper and a cutting knife, and is characterized in that the die-head comprises a baffle, a lockingscrew, a release lever, a transmission screw pressure spring, a transmission screw, a fastening card and a curve locking disk, wherein the curve locking disk is arranged between a curve disk and a salver, and a locking hole is cut on the curve disk; a moon-groove is arranged on a die-disk, and the transmission screw pressure spring and the transmission screw are arranged in the moon-groove; a transmission hole is arranged on the curve locking disk, and the transmission screw penetrates the transmission hole; the baffle is in shaped like an 'L' which is reversed vertically and articulated on the curve locking disk; the curve locking disk is provided with a blocking handle and a limiting lug; the release lever is articulated on the die-disk; and the automatic cutter-withdrawal device comprises a sine block, a guiding rod, a left pressure spring and a right pressure spring, wherein the sine block is sheathed on the guiding rod; and the left pressure spring and the right pressure spring are respectively fixed at two ends of the guiding rod. The electric pipe-cutting threading machine can be applied to machine external taper threads and external straight threads, with high machining accuracy.

Description

Technical field [0001] The invention relates to an electric pipe threading machine, in particular to an electric pipe threading machine capable of processing external taper threads of pipe fittings and external straight threads of pipe fittings. Background technique [0002] The electric pipe threading machine is mainly used to process the threads of pipe fittings. The electric pipe threading machine includes a head box, a carriage, a die head, a scraper and a cutter. The head box includes a motor, a gearbox, an oil pump and a guide post The box body, motor, gearbox and oil pump are all installed in the box body, the sliding frame is installed on the guide post of the box body, the die head, scraper and cutting knife are all installed on the sliding frame, and the tube to be processed is driven to rotate through the head box , The sliding frame drives the die head, scraper and cutter to move along the axial direction of the guide post, so as to realize the function of processing ...

AI Technical Summary

Problems solved by technology

[0003] At present, the commonly used electric pipe cutting and threading machine has a narrow application area, some can only process tapered threads in pipe fittings, and some can only process straight threads in pipe fittings, and the structure of the die head in the electric pipe cutting and threading machine is complicated , high production cost, this type of die head includes die, die plate and curved plate with arc convex line on the bottom surface, among which the positioning ability of the curved plate is poor, resulting in low precision of processing pipe fittings

For example, the date of application is May 18, 2005, and the announcement number is CN2792673 in the Chinese patent, which discloses an electric threading machine. Although the electric threading machine can accurately control the thread length processed when processing pipe fittings, The precision of the processed thread is not high, and only the external taper thread of the pipe fitting can be processed, thus reducing the threading range of the electric threading machine, which brings great inconvenience to the use

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