SU582875A1 - Multistep die set - Google Patents

Description

The invention relates to the field of strain of the manufacturing para {d) and planting and can be used in the manufacture of hollow products with a bottom by crimping tubular blanks. A stamp is known for crimping tubular blanks containing dies, a punch and a holder 11. The use of a known punch in the manufacture of products with two operations is complicated by the fact that the changeover is difficult and the outer diameter reduction is impossible. In addition, with multi-operation heading on such a stamp, at each operation, the product must be re-submitted, orientation, etc., which leads to unproductive time spent. Also known is a multi-transition stamp containing a fixed plate in which the dies are mounted, a movable pit with fixed punches on it and a revolver table located between the plates. In the slots of this table there are cage clamps for placing the workpiece. In such a stamp, before turning the foot, an ejector must work to cut the 5 blanks from the dies. When stamping ke thin-walled workpieces, eject the suit to the geometry of the semifinished product. In order to remove blanks from the dies without knocking out, in the presumed shgaj / shaooyma are made movable in the axial direction of the scientific research institute, and the table was filled with retaining clips during its rotation. FIG. 1 shows the proposed shtack before punching (first PEESCHI.CH); in fig. 2 - the same, but at the lower point of the press ram; in fig. 3 th, ko after osoi-b-tubs stamping; in fig. 4-6 -gamp (ETO-. Pa position in the same follower; EHNosgy); in fig. ml (third position in the same sequence). The clips 1 are fastened in a revolving table 2 with the possibility of overlap in the horizontal section along with, as well as along the vertical E nests of the table. In order to hold the wallpaper in the upper part, there are fixtures 3. The mattresses are rigidly fixed in the installation of 7 cggs: /

pas, and punches 8-10 - in the top plate of 11 L l holders of the clips when lifting serves puller 12.

The stamp works with a snooping way.

At the loading position (but shown). the cooking 13 is inserted into the lip 1, it is fed to the first stamping position (Fig. 1). When lowering the press ram, the punch 8 enters the workpiece 13 and the clamp and presses on its upper end. The stockpile is deformed, turning into a semi-finished product 14 (Fig. 2). When raising the press ram, the prefabricated 11: is carried away | punch 8 up, lift, in turn, the clip 1 until it stops at a punch 12, after which the punch 8 comes out of the semi-finished product.

(hiKcaTOp 3 holds the holder at the top (Fig. 3).

After stopping the press ram (a command is received to rotate the turret table by one step, and the semifinished product arrives at the second position (Fig. 4). At the same time, a new billet arrives at the first position. The yoke 1 also lowers with, and the punch 9 produces shaping (FIG. 5).

When the press ram is raised, the punch 9 comes out of the semifinished product and the ejector 15 pushes the semifinished product out of the matrix 1 5, while the holder: 1 is fixed again in the upper position (Fig. 6). ; The revolving table rotates again, and the semifinished product enters the third position;

stamping (Fig. 7). At the same time, a blank is received on the first position, and a pop-finished product is on the second position 14.

At the next lowering of the press ram, the punch 10 pushes the finished fabrication through the matrix 6 — calibration (compression) is performed on the outer diameter. Get the product 16 (Fig. 8).

Claims (2)

1.Gorbunov MN. Stamping of details from tubular blanks, M., I960, with. 65-66. 2. Malov A, N., et al. Mechanization and automation of stamping operations, M., Mashgiz, 1955, p. 132; FIG. 106. FIG. J / 5 Fig L