RU1804939C - Bottom edge rolling device - Google Patents

Abstract

Usage: metal forming. SUMMARY OF THE INVENTION: the device comprises a bed on which two rollers are mounted and a workpiece attachment assembly. In addition, it is equipped with a body, a stand and two supports, a base, two traverses. Traverses are mounted on the base with the possibility of reciprocating movement in a horizontal plane by means of hydraulic cylinders. Each supporting element with one end pivotally mounted on the corresponding end of the crosshead. The U-shaped frame is mounted at the ends of the support elements. In this case, the supporting elements and racks of the U-shaped frame are configured to change their length. The workpiece mount assembly is secured to a U-shaped frame. 1 C.p. f-ls, 4 ill. ,.

Description

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The invention relates to the processing of metals by pressure and can be used in various fields of mechanical engineering.

The aim of the invention is to improve product quality.

In FIG. 1 and .2 show a device for seaming the bottom edge, general view; in Fig.3 and

4 - device operation.

The device comprises a frame 1 on which a housing 2 is mounted with a base 3 made with the possibility of moving up and down using the hydraulic cylinder 4.

On the base 3, guides are installed with the possibility of movement of the traverse 5, which are moved by hydraulic cylinders 6 mounted between the traverse 5 and the support 7. On the traverse

5, the brackets 8 are rotatably mounted, consisting of pipes 9 and extendable rods 10, which extend to the required distance depending on the shape and size of the workpieces and then are fixed with locknuts (not shown in the drawing).

The rotation of the bracket 8 is carried out by hydraulic cylinders 11, the rods of which are connected to the pipes 9 of the brackets 8, and the cylinders to the stand 12. A rotary U-shaped frame is installed on the brackets 8. It consists of racks 13 and a cross member 14, Racks 13 are made with the possibility of changing lengths and consist of upper 15 and lower 16 pipes. The change in the length of the uprights 13 depends on the geometric dimensions and the shape of the bottom. Locking is done with locknuts.

On the cross member 14, a workpiece mounting assembly is installed, consisting of a pin 17 freely rotating around its axis, onto which the workpiece 18 is mounted and secured with a nut 19 and washers 20. A power frame 21 is installed on the bed, in pa00

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Me. 2V is a housing 22 in which the upper roller 23 is mounted in the slider 24 and a device for moving the upper roller, consisting of a slider which is moved together with the upper roller 23.

A lower roller 26 is mounted on the bed in the support 27, the drive is carried out by an electric motor 28 through a gearbox 29, 30 - the axis of rotation of the brackets 8.

The device operates as follows; On the cross member 14 of the U-shaped frame, consisting of elements 13,14,15,16, the workpiece 18 is mounted and secured with the help of the fastening assembly of the workpiece. The workpiece attachment assembly consists of elements 17, 19, 20, then includes the drive of the lower roller 26 and, using the upper roller 23 moving device consisting of a screw 25 and a slider 24, the upper roller is lowered to contact the lower roller 26 through the workpiece 18, which comes into rotation, after that create the necessary amount of thinning of the workpiece.

By turning on the hydraulic cylinders 11, the brackets 8 are rotated, consisting of elements 9.10 by a predetermined angle, and thus the bottom edge is rolled after the bottom edge is rolled, the hydraulic cylinders 11 are turned off, the workpiece is in the same position as shown in Fig. 3 by hydraulic cylinders 6 carry out a straight-line movement of the traverse 5 and roll out the cylindrical part of the bottom. The upper roller 23 maintains the required amount of thinning during the entire rolling period of the bottom edge.

In FIG. Figure 4 shows the final stage of the process of indentation of the bottom edge to obtain a cylindrical surface.

As an example in FIG. 1, 3 and 4 shows the roll-in of the edge of the conical bottom with a spherical central part.

When seaming the edges of other shapes (parabolic, spherical and others) with other radii of seaming, the edges of the bottoms re-adjust the device. For this purpose, the bottom on which the edge is to be rolled up is set so that the non-rolled edge of the bottom is perpendicular to the plane of rotation of the rollers. In the case when it is necessary to change the radius of the seaming edge of the bottom move the base 3 in the vertical direction to the desired radius of the seaming edge of the bottom. To satisfy the condition that the non-rolled edge of the bottom blank must be perpendicular to the plane of rotation of the roller, the length of the brackets 8 is changed and the U-frame is rotated by the required angle, if necessary, also change the length of the uprights 13.

The seaming radius of the bottom edge is determined by the position of the axis of rotation 30 of the brackets 8 relative to the traverse 5. The axis of rotation 30 of the brackets 8 lie in the plane of rotation of the rollers.

Compared with the known solutions, the device allows the edge of the bottom to be rolled up, while the shape of the rolled edge of the bottom is determined not by the shape of the roller, but by the path of the workpiece, in addition, a cylindrical surface is obtained in the claimed device, which improves the quality of the bottoms and simplifies operations docking the bottom with a cylindrical surface.

Claims (2)

1.-A device for seaming the edges of the bottoms, containing a bed on which two rollers are mounted, one of which is a drive, a workpiece mounting assembly and a assembly moving non-driven roller, characterized in that, in order to improve the quality of products, it is equipped with a housing, a stand and two supports mounted on a bed, a base mounted in the housing and made with guides, two traverses mounted on the base with the possibility of reciprocating movement in the horizontal plane by hydraulic cylinders, each of which is fixed on the corresponding support, the rod of each of which is fixed on one of the ends of the corresponding beam, two supporting elements, each of which one end is pivotally mounted via an axis on the second end of the corresponding crosshead with the possibility of rotation in the vertical plane by means of a hydraulic cylinder mounted on a stand, a U-shaped frame mounted on the second ends of the supporting elements, while the workpiece mount assembly is mounted on a U-shaped frame . 2. Device pop. 1, characterized in that, in order to expand technological capabilities, the supporting elements and racks of the U-shaped frame are made with the possibility of changing their length, the base is installed in the housing with 5 the possibility of reciprocating movement in a vertical plane, and The U-shaped frame is mounted at the ends of the supporting elements with the possibility of rotation around the axis, 25 M9 in U / 5 a