SU1519854A1 - Die for cutting tubes - Google Patents

Abstract

The invention relates to the blank production of engineering enterprises, namely, devices for cutting steel, and can be used in the preparation of tubular blanks. The aim of the invention is to increase reliability, decrease production space and expand technological capabilities, as well as reduce cutting forces. The pipe cutting punch contains a bottom plate 1 carrying clamps for fastening the pipe being cut 3, racks 4 for placing a forked holder 5 on the axes with a scoring knife fixed on it, made in the form of a sector multi-tooth. On the axis of the fork holder, there is mounted a support in the form of gear 7, interacting with a pusher in the form of a gear rack 10, which is fixed rigidly on the upper plate 8, to which the cutting knife 9 is rigidly attached. f-ly, 4 ill.

Description

.4-X

eight

SS:

The invention relates to the preparation of machine-building enterprises, namely to devices for cutting steel, and can be used in the preparation of billets.

The purpose of the invention is to increase reliability, reduce production areas and expand technological capabilities, as well as reduce cutting forces

The figs show a stamp at the beginning of the stroke; Fig 2 - the end of the incision knife; Fig 3 - the end of the working stroke of the cutting knife; in FIG „A - section A-A in FIG. K

A stamp for cutting pipes contains a bottom plate 1, carrying clamps 2 for fastening the pipe being cut 3, racks 4 for placing a forked holder 5 on the axes with a notching knife 6 fixed to it, made in the form of a sector multi-hole broach. A support is mounted on the axis of the forked holder. in the form of gear 7, interacting with the pusher in the form of a toothed rack 10 mounted rigidly on the upper movable plate 8 to which the cutting knife 9 is rigidly fixed

The stamp works as follows. The cut pipe 3 is fed up to the stop 1t and clamped in the direction of arrows B-Bo. The upper plate 8 is moved in the direction of arrow B, while the gear 7 and the forked holder 5 rigidly connected with it with a notching knife installed rotate it 10. 6 о The knife 6 rotates and with its teeth gradually cuts the pipe. As the upper plate is lowered, the rail 10 leaves the gear 7, the rotation of the knife 6 stops, the space for the passage of the cutting knife 9, which enters and a section of a tube into parts

When moving up the moving parts of the stamp up, all the mechanisms of the stamp return to their original position in the reverse order.

Claims (1)

Invention Formula 1 "Stamp for cutting pipes into workpieces, containing the bottom pit with coaxially mounted on it matrices located on both sides of the plane of the cut, and a stand placed on one side of the plane of the cut and bearing an axis parallel to the matrices with a knife, a top plate with a flat cutting knife installed on it and a scissors knife rotation mechanism, as well as a clamping mechanism for a pipe being cut, characterized in that, in order to increase reliability, reduce production space and Yeni technological capabilities, it is equipped with an additional rack with an axis located on the other side of the cutting plane, and the scoring knife is made in the form of a sector with cutting elements and provided with a fork-shaped holder mounted with its ends on the axles of the racks, and the mechanism for turning the scoring knife is made in the form support associated with fork and pusher mounted on the top plate of the stamp with the ability to interact with the support li 2o Stamp, which differs from the fact that, in order to increase reliability and reduce stress, the notching knife is made in the form of a sector multi-tooth. 3o Stamp pI, different and with the fact that the support mechanism turning the incising knife is made in the form of a gear, and the pusher is in the form of a toothed rack.