SU1537347A1 - Die set for die-forging of parts - Google Patents

Abstract

The invention relates to the processing of metals by pressure, in particular to dies for stamping parts with fins. The purpose of the invention is to expand the technological capabilities of the stamp. The stamp consists of a punch, a container with a matrix, a sleeve with grooves placed in a substamper plate, a undercut mounted on the sleeve, a hollow rod placed on the liner, a shank and an ejector. When the part is pushed out of the die, the shank, moving from the press pusher, moves the rod through the bolster, as well as the matrix relative to the container, to remove the part. 1 hp f-ly, 3 ill.

Description

The invention relates to the processing of metals by pressure and can be used for isothermal bulk forming of parts with ribbing and thin web.

The aim of the invention is to expand the technological capabilities of the stamp.

Figure 1 presents the proposed stamp, a general view; figure 2 - section aa in figure 1; on fig.Z - view B in figure 1.

The die for stamping parts contains die plates 1, a punch -2, a container 3 with a matrix 4 installed in it with axial movement, an ejector 5, a sleeve 6 with shaped grooves 7 aligned with it, a slot 8 with a central shaped hole 9, a stem 10 and a shank 11 connected to the press of the press. The gate mark 8 is installed by means of, for example, pins 12 in the slots 7 of the sleeve 6, which are made along a helical line with the lower vertical portion, and thus has the possibility of a vertical change scheni with rotation about its axis. The rod 10 encloses the ejector 5 and rests on the bolster 8, and the sleeve 6 is fixed in the substamp plate 1. The shank 11 has a cross section corresponding to the profile of the central hole 9 of the bushing 8, for example rectangular, which is initially rotated relative to the specified hole 9 so that that the end face of the shank 11 can abut against the bottom surface of the bushing 8 (as shown in Fig. 2).

The upper end of the stem 10 may abut against the bottom surface of the die 4. In this case, the magnitude of the axial movement of the sub-8 does not exceed

Q1 SB vl 0 vj

axial displacement of the matrix

4, which is greater than the distance q from the upper end of the container 3 to the lower point of the engraving, and the lower vertical portion of the groove 7 of the sleeve 6 has a length not less than the indicated distance a.

The stamp works as follows.

After punching is completed, pressure is supplied to the cylinder by the press of the press and the shank 11 begins to move upward, abutting against the 8S plate which transmits the movement to the rod 10. The last one, lifting, abuts the matrix 4 and moves it upwards. removing the part 13 from the surfaces on which it contacts the container 3. When moving upward, the follower 8 rotates to a certain predetermined angle (for example, 90 °), as a result of which its central shaped hole 9 coincides with the cross section of the shank 11, which enters into it result of which the movement podp pendulum 8, the rod 10 and the matrix 4 is stopped. Removal of the part 13 from the container 3 takes place with the vertical movement of the bolster 8 along the vertical section of the groove 7 by the amount a, which eliminates the effect of the removal force on the wire of the bolster 8 (i.e., the force is removed from the pins 12, the life and reliability of work). Upon further movement of the shank 11 upwards, it passes through the bushing 8 and rests against the ejector 5, which is screwed in while the matrix 4 abuts and the container 3 stops, and the part 13 is removed from the matrix 4. After the press pusher stops, part 13 is removed with ejector

5, and the pusher and shank 11 respectively move down. At the same time, the ejector 5, the die 4, the stem 10 and the subframe 8 are lowered under their own weight and occupy the initial position.

Q; 0 5

0

five

five

Claims (2)

1. A die for stamping parts mainly with fins, containing a punch, a container with a matrix, having engravings, an ejector installed in the hole of the die plate with the ability to cooperate with a press pusher, characterized in that a sleeve with slots profiled along the length, having sections inclined and parallel to its longitudinal axis, placed in a sub-die plate on the side of the press pusher, a tipping box with an axial bore and pins, placed in the slots of the sleeve, a hollow rod mounted on a liner and covering the ejector, as well as a shank connected to the press pusher, the cross section of which corresponds to the profile of the axial hole of the liner, the stem and liner are arranged with the possibility of interaction with the supporting surfaces of the matrix and the liner, respectively The axial displacement of the matrix exceeds the axial displacement of the binder and the distance from the upper end of the container to the lower point of its engraving. 2. Stamp pop. 1, characterized in that the groove section parallel to the axis of the sleeve is made at least the distance from the upper end of the container to the lowest point of its engraving and is located on the side of its lower end. / 3 ; / Press pusher FI.1 FIG. 2 FIG. J