SU1074668A1 - Die for cutting rolled stock to billets - Google Patents

Abstract

STAMP FOR CUTTING THE ROLLING ON PREPARATIONS, containing a frame, a knife-punch, coaxially positioned fixed semi-sleeve knives placed on both sides relative to the knife-punch and mounted on a bed, clamping half-sleeves located above the fixed semi-sleeve knives, cutting elements for preliminary cutting, placed on the half sleeve. knives and clamping sleeves, and emphasis, characterized in that, in order to expand the range of the cut blanks, the emphasis is located between the fixed semi-sleeve knives coaxially knife the y-puncheon and is made in the form of two one-sided wedges fixed on the frame with the possibility of moving one relative to the other and interacting along a plane perpendicular to the axis of the stationary semi-sleeve knives, while the emphasis is provided with an individual movement drive.

Description

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The invention relates to the processing of metals by pressure and can be used in mechanical engineering for cutting rolled steel and pipes.

A stamp for cutting the rolled stock is known, comprising lower and upper bases with fixed and movable knives fixed on them, a mechanism for clamping the workpiece, a spring for returning the fixed blocks of knives to their initial position, an emphasis. In order to obtain dimensional blanks of a given length, the stop contains a bracket fixed on the holder of the movable unit and a spring-loaded slider connected to the bracket with an adjusting screw with its own stops 1 attached to it.

The disadvantages of this stamp are its structural complexity, the narrow range of diameters and lengths of the parts being cut, and also the productivity is not high enough.

The closest technical solution to the invention is a die for cutting rolled metal into workpieces containing a frame, a punch knife, coaxially arranged fixed semi-sleeve knives, placed on both sides relative to the punch knife and fixed on the bed, clamping half-sleeves located above the fixed semi-collar knives, cutting elements for pre-cuts, mixed on semi-collar knives and clamping bushes, and stop 2.

A disadvantage of the known Itamp is the narrow range of cut blanks.

The purpose of the invention is to expand the range of cut blanks.

The goal is achieved by the fact that in the die for cutting rolled metal into workpieces containing a frame, a punch knife, coaxially arranged fixed semi-sleeve knives, placed on both sides relative to the knife-punch and fixed on the frame, clamping half-sleeves located above the fixed semi-sleeve knives, notches placed on semi-sleeve knives and clamping sleeves, and emphasis, the latter is located between the stationary semi-sleeve knives coaxially with a punch knife and made in the form of two one-sided these wedges attached to the frame with the possibility

moving one relative to the other and interacting in a plane perpendicular to the axis of the stationary semi-sleeve knives, the emphasis being provided with an individual movement drive.

FIG. 1 shows a stamp, general view, section; in fig. 2 is a section A-A in FIG. one; on. FIG. 3 - emphasis, made of two retractable wedges.

The stamp for cutting the rolled stock contains 1 Inna 1, fixed semi-sleeve knives 2 fixed on it, clamping semi-sleeves 3 located on both sides of the knife-punch 4 installed in the punch holder 5, cutting elements 6, an emphasis 7 located between the fixed semi-sleeve knives 2 and made in the form of two one-sided wedges 8 fixed on the bed 1 with the possibility of moving one relative to the other and interacting along a plane perpendicular to the axis of the fixed semi-sleeve knives 2, and the stop 7 is provided with an individual lead The displacement is made in the form of a hydraulic cylinder 9. Adjusting strips 10 and adjusting screws 11 are used to adjust the height of the wedge.

. The stamp works as follows. An emphasis 7, consisting of two thrust wedges 8 that are independent of each other, is set to the required height depending on the length of the cut piece with the help of adjusting bars 10, adjusting screws 11 and hydraulic cylinder 9. The blank 12 is fed from two sides into stationary half-sleeve knives 2 up to wedges 8 and clamped by semi-sleeve knives 2 and clamping

half-sleeves 3. At the same time, V-shaped grooves are applied on the surface of the workpiece at the cut-off point by the cutting elements 6. Nozhpuanson .4, installed in the punch holder 5, is set in motion under the action of dynamic loads and is cut

blanks. The stop 7 mounted on the hydraulic cylinder 9, under the action of the knife-punch 4, is sunk together with the cut blanks. After the pieces are cut, the knife-punch 4 and the stop 7 return to their original position. Duty cycle repeats.

Compared with the prior art, the proposed stamp allows cutting of stubs of various lengths.

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Claims (1)

STAMP FOR CUTTING RENTAL FOR BILLS, containing a bed, a knife-punch, coaxially fixed stationary half-knife knives, placed on both sides relative to the knife of the punch and fixed on the bed, clamping half-sleeves located above the fixed half-sleeve knives, cutting elements for preliminary cutting, placed on half-knife knives and clamping bushes, and an emphasis, characterized in that, in order to expand the range of cut blanks, the emphasis is located between the fixed half-knife knives coaxially with the PUA knife Saône and is designed as a two-sided wedges attached to the frame for movement relative to one another and interact on a plane perpendicular to the axis poluvtulochyyh fixed blades, wherein the abutment is provided with an individual movement drive. 4 ^