SU1382602A1 - Die for cutting bar material - Google Patents

Abstract

The invention relates to the processing of metals by pressure, in particular to a tooling for cutting bar material into dimensional workpieces, and makes it possible to increase the reliability of the stamp. The stamp contains a slider - Hbiii 3 and a fixed 2 sleeve knives, an emphasis 7 and a support 6, in which a longitudinal open groove is made. The profile of the groove corresponds to the profile of the bar to be cut 5. A pusher 11 is fixed on the top plate 9 of the punch. During the downward stroke of the top plate 9, the workpiece is trimmed and the pusher 11 is ejected before the cut piece. 2 Il.

Description

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The invention relates to the processing of metals by pressure and can be used in the blank production of engineering enterprises.

to separate bar material into dimensional blanks.

The aim of the invention is to increase the reliability of the punch for separating the bar material when cutting blanks with a length greater than the length of the opening of the movable stub punching knife.

FIG. 1 shows a die for separating a bar material, in its initial position, a section; Fig, 2 - the same, in the position of the end of the stage pieces of the workpiece.

The stamp for separating the bar material contains a lower plate 1 on which a fixed stub knife 2 and a movable stub knife 3 supported on a spring 4 are mounted. In the working knives 2 and 3 there is a bar 5. A support 6 and a stop are mounted on the lower plate 1 7 for fixing the cut bar 8. A pusher 10 is mounted on the top plate 9 of the punch to move the movable stub knife 3 and the pusher 1 to remove the cut bar 8.

The stamp for cutting the rod works as follows.

In the upper position of the die, the bar 5 is fed into the opening of the sleeve knives 2 and 3 to a temporary stop (not shown). When the upper plate moves downward, the movable stub knife 3 is displaced relative to the fixed knife 2, due to which the process of cutting the workpiece 8 from the bar occurs. At the opposite ho

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five

The cut bar 8 is set coaxially to the bar 5. Then the bar 5 is fed, and the bar 8 is cut off by the axial force transmitted by the bar 5 along the support 6 in the open longitudinal slot corresponding to the bar profile. During the process, as soon as the next billet is separated from the bar located in the knife 3, onto the pre-cut bar 8, the pusher 11 presses and tilts the cut billet 8, removing it from the support 6. The gap between the pusher 11 and the supports 6 minutes should be greater than the diameter of the rod and is sufficient for a reliable oprokidshani severed from the preform rod.

Claims (1)

Invention Formula A punch for cutting bar material into dimensional workpieces, containing a base with a fixed bushing knife, a movable bushing knife that can be cooperated with the upper drive plate, and an emphasis that, in order to increase reliability when cutting billets with a length greater than the opening of the movable sleeve knife, it is equipped with a support fixed on the bottom plate between the movable sleeve knife and the stop and made with an open groove along the profile of the material being cut, COOCHBW the hole of the fixed sleeve full-time knife, and the pusher mounted on the upper drive plate between the anvil and the support, while the emphasis is fixedly mounted on the lower plate. S S SSSSS tViZ