RU2497618C1 - Sheet material processing device - Google Patents

Abstract

FIELD: process engineering.

SUBSTANCE: invention relates to metal forming, particularly, to device for sheet material hardening in processing. Said device comprises casing with "П"-like gage fitted therein, annular sector insert coupled with roll pass and secured in the pad, insert contact surface being arranged offset with respect to roll contact surface to making billet intake working channel fixed wall. Note here that said device can translate and comprises intake female die with circular channel. Besides, intake female die has a lengthwise cutout along generating line for butt welding of coiled hardened sheet. Note that cylindrical revolving insert with outer surface inner wall in female die makes a circular channel.

EFFECT: possibility to machine large-size sheets and to make single-joint pipes.

3 cl, 1 dwg

Description

The invention relates to the processing of materials by pressure, and in particular to devices for hardening the material during processing.

A known device for processing sheet blanks, close to the invention in technical essence and the achieved positive effect [patent 2291010 of the Russian Federation, MKI B21C 25/00, publ. 06/20/2008 (prototype)], contains a housing in which a U-shaped roll is mounted, a roll sector connected to the roll caliber and secured in the block, an annular sector insert whose contact surface is eccentric relative to the roll contact surface and forms a fixed working channel wall for receiving a workpiece connected to the housing by a wedge clamp; the block is mounted on an axis with the possibility of rotation; about the movement of the device, the body of which is rigidly fixed to the rack, connected with the frame, the roll with annular bandages at the edges is rotatable, and the geometric dimensions of the roll, U-shaped caliber, annular sector insert and pads provide pressing of the sheet blank.

The disadvantage of this device is the limitation of the known invention to obtain only a hardened sheet.

The objective of the additional invention is to expand the capabilities of the method for producing a single-seam pipe from a hardened metal sheet.

This object is achieved in that in a device for processing sheet blanks comprising a housing in which a U-shaped roll is mounted, a circular sector insert coupled to the roll caliber and fixed in the shoe, the contact surface of which is eccentric relative to the contact surface of the roll and forms a fixed the wall of the working channel for receiving the workpiece, connected to the housing by a wedge clamp, the block is mounted on an axis with the possibility of rotation, an emphasis mounted in the groove of the housing, with which protrudes the lower wall of the output channel, with the possibility of translational movement of the device, the body of which is rigidly fixed to the rack, connected with the frame, the roll with ring bandages at the edges is rotatable, and the geometric dimensions of the roll, U-shaped caliber, annular sector insert and pads provide pressing a sheet blank according to the invention, the device comprises a receiving matrix with a circular channel formed by the inner wall of the cavity in the receiving matrix and the outer surface of the cylinder insertion.

In addition, the task is achieved if a longitudinal cut is made in the receiving matrix along the generatrix for welding the joints of a hardened sheet rolled into a roll.

In addition, the task is achieved if the cylindrical insert is made to rotate.

The inventive device differs from the prototype in that it contains a receiving matrix with a circular channel. In addition, the inventive device is characterized by the execution in the receiving matrix of a longitudinal cut along the generatrix for welding the joints of a rolled sheet of a hardened sheet. Also, the inventive device is characterized by the possibility of rotation of the cylindrical insert. Thus, the claimed device meets the criterion of "novelty."

Comparative analysis with the prototype shows the presence in the inventive device of a new technical solution (the presence of the receiving matrix with a circular channel, a longitudinal cut in the receiving matrix and a cylindrical insert with the possibility of rotation), which ensures it meets the criterion of "significant differences".

The proposed device design with the possibility of its translational movement for processing sheet blanks by equal channel angular pressing based on the conformal scheme, as well as containing a receiving matrix for receiving the hardened sheet blank after extrusion, facilitates the production of single-seam pipes from large-sized sheet blanks hardened according to the equal channel angular pressing scheme.

The invention consists in the following. The metal sheet blank is hardened by equal-channel angular pressing based on the conformal scheme. Then the hardened sheet blank enters the receiving matrix with a circular channel, where it is rolled up. The joint of the longitudinal joints of the roll after cutting the edges is made by welding.

The invention is illustrated in the drawing, which shows the implementation diagram of the inventive device for processing sheet blanks and pipe manufacturing.

A device for processing sheet blanks and pipe manufacturing can be performed on the basis of a self-propelled road roller.

The device contains elements for processing sheet blanks: a housing 1, in which a roll 2 with a U-shaped caliber 3 is mounted, formed by annular bandages 4 along the edges of the roll 2. The housing 1 is rigidly fixed to the rack 5 (fixing is not shown). An annular sector insert 6 is associated with the caliber 3 of the roll 2, forming a fixed wall of the working channel 7 for receiving the sheet blank 8. The contact surfaces of the insert 6 and the roll 2 are eccentric. The annular insert 6 is fixedly mounted in the block 9, which is mounted on the axis 10 with the possibility of rotation. The lower wall of the output channel is formed by a stop 11 mounted in the groove of the housing 1 of the device. The housing 1 and the block 9 are connected by a wedge clamp 12. To receive the extruded sheet billet 8 there is a platform 13 mounted on a rack 5, on which, in turn, the frame is mounted 14. According to the claimed invention, the device is additionally equipped with a receiving matrix 16, mounted on the platform 13 In addition, in the receiving matrix 16 there is a cylindrical insert 17, which creates a free circular channel 18. In the body of the matrix 16, welding of the joints of the sheet can be performed along the longitudinal cutout 19.

A device for processing sheet blanks and pipe manufacturing works as follows.

The device implements a conform process diagram. The sheet blank 8 is placed on a flat hard surface 15. With the translational movement of the device, the rotating roller 2 runs into the sheet blank 8, the sheet blank 8 is fed into the working channel 7 of the device. The sheet blank 8 is pressed by active friction forces from the side of the U-shaped gauge 3 from the working channel 7 into the outlet channel formed by the walls of the block 9 and the stop 11. To increase the pressing force and improve the self-tightening conditions of the sheet blank 8 into the working channel 7, the contact surfaces of the insert 6 and the roll 2 are located eccentrically. The pressed sheet blank 8 is received in the circular channel 18 of the receiving matrix 16. In principle, to roll the sheet into a roll, you can do without a cylindrical insert 17, but its presence provides a pipe with a more regular circular shape and a flat surface.

To obtain a single-seam pipe in the receiving matrix 16 of the device, a longitudinal cutout 19 is made along the generatrix for welding joints of the hardened roll.

Using the proposed design of the device provides the extrusion of large-sized sheet blanks in a rolled roll. In addition, the device allows you to get a single-seam pipe.

Claims (3)

1. A device for processing sheet blanks, comprising a housing in which a U-shaped roll is mounted, a roll sector mating to the roll caliber and an annular sector insert fixed in the shoe, the contact surface of which is eccentric relative to the contact surface of the roll with the formation of a stationary wall of the working channel for receiving billet, and the block is connected to the housing by a wedge clamp and mounted on the axis with the possibility of rotation, emphasis mounted in the groove of the housing and forming the bottom wall outlet of the channel, while the housing of the device is rigidly fixed to the rack associated with the frame, the roll at the edges has annular bandages and is made to rotate, and the device is made with the possibility of translational motion, moreover, the geometric dimensions of the roll, U-shaped caliber, ring sector insert and pads are made with the possibility of pressing the sheet stock, characterized in that it is equipped with a receiving matrix with a circular channel formed by the inner wall of the cavity in the receiving matrix and the outer surface awn cylindrical insert. 2. The device according to claim 1, characterized in that a longitudinal cut is made in the receiving matrix along the generatrix to perform welding of the joints of a hardened sheet rolled into a roll. 3. The device according to claim 1, characterized in that the cylindrical insert is made to rotate.

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