SU845969A1 - Apparatus for undercutting articles such as bodies of revolution - Google Patents

Description

The invention relates to the processing of metals by pressure, in particular to devices for trimming products such as rotation bodies.

A known device for trimming products of the type of rotation bodies, comprising a slider mounted in a housing with a cutter S, kinematically connected with the mechanism of its radial movement 11.-.

The disadvantage of this device is the low quality of the cornea.

The purpose of the invention is to improve the quality of the finished product.

This goal is achieved by the fact that a device for trimming products such as rotation bodies, containing a slider mounted in a housing with a heavy roller, kinematically connected with a mechanism for its radial movement, is provided with a mandrel mounted and clamped, as well as deforming the roller optically. element, while the mechanism of radial movement of the cutting roller is made in

the form of a copier and one end of a two-armed lever interacting with it, the other end of which is kinematically connected with a slider of a cutting roller.

In addition, on the mandrel, respectively, the cutting roller is made a groove with a cutting edge.

FIG. 1 shows a device, a common vice, section; in fig. 2 - node 1, HC & lichano: nafig.Z-section A-A in FIG ..

Claims (2)

The device for trimming caps has a mandrel 1 with an annular groove, with a cutting edge, which determines the length of the product from its end, the presser 2 with the pusher 3, is located in the pulleys of the glass 4, and is spring-loaded with slider 6 and 7 having a cut-off 8 and deforming 9 rollers. The sliders 6 and through the double shoulders the levers 1O and 11 are spring-loaded with the clip 5 4 connected to the cam 12, and the key 13 to the pulley glass 4. Prizhtl 2.h & keys 14 is connected to the housing 15 and through the bearings 384 with the spring-loaded holder 5 plate 16c case 15, pulley - glass 4 with pusher 3, and buffer 17 with pins 18. Position 19 designates the workpiece to be processed., The device operates as follows Pulley - glass 4 and holder 5 with levers 10 and 11, sliders 6 and 7, cutting 8 and deforming 9 rollers are constantly rotated through a belt drive from an electric motor (not provided). When the slider is in the upper position, the cap 19 (blank) is moved by a clamshell mechanism (not shown) from the exhaust rod and is installed on the plunger 3. When the press slider moves down, the cap (blank) of the mandrel 1 is pressed down to the plunger 3, under the action of the mandrel 1 the plunger 3 through pins 18 compresses buffer 17, the cap enters the nest of the pressure matrix 2. Under the action of the mandrel 1, the pusher 3 and the pressure matrix 2 are jointly moved together with the cap 19 and the rotating holder 5 into the pulley-glass 4. The holder 5, rotating, moving down together with sliders 6 and 7. rollers 8 and 9 and two-armed arms Yu and 11, with one shoulder constantly connected to the sliders, and the other in contact with the cam, 12. The levers Yu and 11 under the action of cam 2 turning at some angle and move the sliders 6 and 7 with the rollers 8 and 9 fe radial to, the center of the direction synchronously with the translational movement of the mandrel 1. The cutting roller 8, rolling the cutting edge around the fixed cap 19, cuts the product. As a result of the roller being inserted into the cap wall on the outer surface, a metal (burr) is formed, and from the diametrically opposite side, the roller 9 deforms the metal flow on the cut end, and cut off 94 grd 8 finally cuts (i.e., removes the flow) . The product size is predetermined by the mandrel 1 from the end to the lower edge of the annular ditch G1. After trimming the product, the mandrel 1 occupies the upper position, and the pusher 3 under the action of the buffer 17 pushes the product to the upper position and is removed. The rotating holder 5 under the action of the springs occupies the upper position, the sliders 6 and 7 with the rollers 8 and 9 move to the initial position. The use of the proposed device for cutting thin-walled caps on a multi-position press allows cutting a thin-walled cap without deforming the wall, which combines the operation of undercutting with deep drawing. Claim 1: A device for trimming products such as bodies of rotation containing a slider mounted in a housing with a cutting roller, kinematically associated with the mechanism of its radial movement, characterized in that, in order to improve the quality of the finished product, it is equipped with a coaxially mounted a casing mandrel holder, and i oppositely disposed cutting roller deforming member, wherein the mechanism for radial movement of the cutting roller is designed as a copier and cooperating therewith .dvuplechego one end of a lever whose other end is kinematically coupled to the cutting roller polzushkoy. 2. A device according to claim 1, characterized in that a canaak with a cutting edge is formed on the mandrel, respectively, of the cutting roller. Sources of information taken into account in the examination 1. US Patent No. 391343О, cl. B 23 B 21/04, 10/21/75. / I. -J