SU747576A1 - Tool for pressure-working of metals - Google Patents

Description

(54)

TOOL FOR PROCESSING METALS BY PRESSURE

The invention relates to the processing of metals by pressure and can be used for cutting blanks from profiled steel in the blank production of the engineering industry.

The most geometrically accurate and short blanks can be obtained by closed cutting in dies with a differentiated clamp.

A cutting device is known, the knives of which are made composite, with one knife fixed on one support and the other knife movably mounted using a device for displacing it in a direction not coinciding with the direction of movement of the support, and on the other support one knife is connected with it can be moved relative to it, and the other knife is also movably installed with the help of another device for displacing it in a direction not coinciding with the direction of movement of the slide l3.

The known device has a complex structure.

A known stamp for cutting bar material containing two pairs of working tools in the form of clamped inserts and detachable inserts placed inside them, and the HorxD mechanism is differentiated and 21.

The stamp is designed to cut round material. When cutting a profile, for example square, the cutting quality is low.

Known heat tools for metal forming, mainly for cutting, containing ogolJu

15 frame and folds inside it with a cross-section in the form of a rectangular triangle with cathets, interconnected / interacting with each other Z.

However, a fixture that is reliable in operation is provided for clamping the workpiece.

Claims (3)

In order to increase the reliability of the clamping, the instrument is equipped with elastic elements placed in the corners of the frame, one side of which is installed with the movement ability, g of triangles are cut and interacting with elastic elements, this being their hypotenuse located on the frame. FIG. 1 shows an instrument, a general view; FIG. 2 — shtakr1n, in which the shirut Ghent can be installed, in a general form; FIG. 3.4; respectively, sections A-A and B-B in FIG. 2. The tool contains a pr-to-angular frame 1 and resilient elements 2 placed in its corners and inside it a 4-6 insert insert with a cross section in the form of a triangle of triangles, side 7 of the frame (mounted to be able to move under the action of 8 presses In the case of installation of a tool in a stamp or under the action of a caliper connected to the drive, in case of installation of the tool in the scissors, the Treugolzhy interact with each other, and their hypotenuse contacts the frame. The tops of the triangles are cut and interact elements 2 of the angles oL to fb between the legs and the hypotenuse can be taken equal to 30 and 60, Shtak-1P, a tutoring device can be installed in the tadtor, it contains a fixed 9 and a movable 10 plate, a differentiated clamping mechanism, a clamping and cutting knots. The differential clamping mechanism is made in the form of a knot 11s with a tuck 12, which are interconnected along the plindrical surface. The fixing and cutting units are made in the form of identical tools {FIG. 3 and 4) with cut-off 3-6 and clamping 13-16 ink breathing, which are closed contour of the cut-out workpiece7: and 17. Buffer 18 is installed between the 1O plate and the clamping sheath 13 to return the tools to the initial position. The stamp works as follows. Under the force of the press, the plate 10 moves the cutting insert 3 and, through buffer 18, the clamping insert 13. Since the force R, cos of the discharge device 3, the cut-off insert 3 moves along the inclined plane of the insert 6, thereby moving along the frame 1 insert 4. Under the action insert 4 in p. 11 moves the insert 5, which 64 moves through the insert 6, but the cutting plate 3 is offset by the plate 10, the contour formed by the inserts 3, and clamps the workpiece 17. At the same time, the insert 13 is hemmed in 11 the blade 15, which in turn, through the clamping insert 16, moves the insert 13 through the buffer 18 and clamps the workpiece 17. As the force P increases, it becomes equal to the cutting force, insert 3 through the workpiece 17, insert 5 and 11. transmits this force to the inserts 13 and 15, overcoming the resistance of buffer 18, and turns n 11 about its axis. There is a shift of the insert 3-6 relative to the inserts 13-16 and the rolling cut is carried out. At the end of the cut buffer 18 returns the ear to its original position. The inserts 13 and 15, moving downward, turn the nth 11 to the equilibrium position, and the fifth, in turn, moves the inserts 3 and 5. Due to the number of flexible elements 2, the inserts move to 1, increasing the contour formed. and release the workpiece 17. The design provides high quality of the cut workpieces and allows one set of inserts (without readjustment of the device) to cut off the wide range of tyrophobiaxiviepoB blanks of this corrugation. This onomical effect will be 132 thousand rubles. Claim 1. A metal forming tool, preferably for cutting, containing a straight tal frame and inserts inside it with a cross-section in the form of a rectangular triangle with legs, which interact with one another, characterized in that, in order to increase reliability clamp, it is provided with a corner and elements, p-shaped at the corners of the frame, one side of which is mounted for movement, and the tops of the triangles are cut and interacting with elastic elements; hypotenuse jus located on. Sources of information 1finaye into account during the examination 1. USSR Copyright Certificate 203434, B 2311 23/00, 1961. 7475766 2. Author's certificate of SSSG No. 551130, cl. In 23 D 23/00, 1975. 3. German patent Ki 453213, cl. B 21 D 3/14, 1926 (prototype). ten eleven It