RU2197353C1 - Locally shaping mill for making articles with relief surface from sheet metal - Google Patents

Abstract

FIELD: plastic working of metallic sheet materials, possibly manufacture of equipment for locally shaping at making articles of sheet metal. SUBSTANCE: mill includes housing, horizontal motion drive unit, table supporting lower die with preset relief surface and traverse bar having drive unit for vertically moving deforming shaft with elastic envelope. Said table is stationary mounted in housing; traverse bar is joined to horizontal motion drive unit and it is mounted onto paired rollers arranged over and under stationary table. It allows possibility of horizontal motion of traverse bar. In such structure table, lower die and blank are fixed and traverse bar may move horizontally. EFFECT: improved design providing lowered metal consumption, size of mill, its enhanced efficiency. 1 dwg

Description

 The invention relates to pressure treatment of sheet metal material and can be used in the development of equipment that performs local molding (rolling) for the manufacture of sheet metal products, in particular decorative panels, elements of heat exchangers, etc.

 A promising direction for applying relief on large surfaces (several square meters) of sheet blanks is molding with a deforming roll with an elastic shell.

 A device for the manufacture of products with a raised surface of sheet metal containing a bed with a metal cylindrical shaft and a vertical displacement drive, a pillow made of elastic material, as well as a table with a matrix attached thereto and an electromechanical table displacement drive (British Patent 2019288, Cl. B 21 D 22/10, 1978).

 The disadvantages of the device include the low resistance of the elastic cushion to the effects of the matrix, because individual sections of a flat elastic pillow are in constant contact at the same points with the protruding relief of the matrix.

 Closest to the invention is a device for manufacturing products with a convex-concave embossed surface of sheet metal, selected as a prototype, comprising a bed with a drive for horizontal movement of the table, on which a matrix with a given relief surface is fixed, and a beam with a rod on which the deformation shaft is mounted with elastic sheath.

 A given relief on the surface of the sheet blank is formed when it is passed between the matrix and the rotating shaft with an elastic sheath (patent of the Russian Federation 1699345, CL 5 B 21 D 22/10, 1991).

 A disadvantage of the known device is the rather large overall dimensions, high metal consumption and low productivity due to the low speed of horizontal movement of the table, because a table with a matrix fixed to it has a large inertia, which can lead to shock loads at elevated table speeds.

 The objective of the invention is to increase the productivity of the mill.

 The technical result of the invention is to reduce the overall dimensions of the mill, reduce its metal consumption, energy intensity and increase productivity.

 The technical result is achieved by the fact that the local molding machine for manufacturing products with a relief surface from sheet metal contains a bed, a horizontal displacement drive, a table with a matrix fixed to it with a given relief surface and a beam with a deforming shaft with an elastic shell and its vertical displacement drive, paired rollers located at the top and bottom of the table, the table is fixedly mounted on the bed, and the beam is installed with the possibility of horizontal movement on the mentioned pair nnyh roller and connected to existing actuator of horizontal displacement.

 The drawing shows a General view of the proposed mill with a fixed table and a movable traverse.

 The local molding machine for manufacturing products with a relief surface from sheet metal consists, according to the drawing, of a bed 1, a horizontal displacement drive with a gearbox 2, an engine 3 and a screw pair in the form of a screw shaft 4 and a nut 5, rigidly connected to the crossarm 11, which thus has the ability to move on a fixed table 6 using paired rollers 7 located above and below the table. In the traverse 11, a vertical displacement drive 12 of the deforming shaft 13 with an elastic shell 14 is installed.

 On a fixed table 6, a matrix 8 is installed, on which, in turn, a sheet blank 10 is placed, fixing its position on both sides using clamps 9.

 Given the structural elements indicated on the drawing, the local molding mill for the manufacture of products with a relief surface from sheet metal works as follows.

 In the initial position, the traverse 11 is in the extreme position (left or right). On the table 6, a workpiece 10 is mounted on the matrix 8 under the clamps 9 and the engine 3 is turned on, which drives the shaft-screw 4 through the gearbox 2, and the beam 11 through the nut 5 starts horizontal movement along the rollers 7. When the beam 11 moves, compression is performed (local molding) blanks on the matrix due to the action of the elastic shell 14 of the shaft 13 with a vertical displacement drive 12. The process ends with the yoke stopping in the extreme position.

 The proposed design of the mill, in which the traverse makes horizontal movement, and the table, matrix and workpiece remain stationary, ensures the achievement of the necessary technical result, namely: it reduces the metal consumption of the mill, reduces its dimensions and increases productivity.

Claims (1)

 A local molding machine for manufacturing products with a embossed sheet metal surface, comprising a bed, a table mounted on it, a matrix mounted on it with a given embossed surface, a horizontal displacement drive, a crosshead with a deforming shaft with an elastic shell and a vertical displacement drive, characterized in that it is equipped with twin rollers located on the top and bottom of the table, the table is fixedly mounted on the bed, and the beam is installed with the possibility of horizontal movement on Cylindrical paired rollers and connected to the existing horizontal drive.