SU394228A1 - PRESS AUTOMATIC WITH BOTTOM DRIVE FOR STAMPING - Google Patents

Description

This invention relates to mechanical cold press forming. A bottom driven press machine is known for stamping sheet metal parts equipped with two sets of movable tools, one of which is mounted on a slider located above a fixed table connected to a drive shaft, which tells the plate to move through the cams relative to the slide block interchangeable tools. In order to obtain parts of complex spatial shape with sequential shtampovka in the tape in the proposed automatic press machine, the plate is placed under the table and equipped with adjusting screws mounted for movement in the through slot made in the plate and interacting with movable tools placed in the interchangeable insert, which is provided table. FIG. 1 shows a press machine, front view; in fig. 2 - the same, side view; in fig. 3 is a section along the line A-A in FIG. 2; in fig. 4 is a section along BB in FIG. 2. A shaft 2 is mounted on the frame / press machine, which receives rotational motion from the electric motor 3 via a V-belt drive 4 and a flywheel 5 with a brake clutch 6. On the shaft 2, two side cams 7 are reinforced, which serve to drive the movable plate 8, and a crank mechanism 9, which transmits the reciprocating movement of the traverse 10. The traverse is fixed on four columns //, which are mounted in the guides J2 of the table 13 and the trunnions 14. In the upper part of the columns there is a slider 15 to which the upper plate 16 is attached tamna 17. The lower plate 18 is mounted on the table schtampa 13 pressaavtomata. In the table 13 there is a removable insert 19, which is installed together with a stamp. The movable plate 8 has in the middle part a longitudinal groove 20, in which the required number of adjusting bolts 21 is transmitted, transmitting the force through the pushers 22 installed in the interchangeable insert 19 to the lower punches 23. The movable plate 8 moves in the bushes 24 along the columns 11 from two jaws 7, which are all the time in contact with the rollers 25 of the movable plate 8. The cams 7 transmit movement only in one direction, while the reverse movement of the movable plate is from two buffers 26 and its own weight. The tape cassette 27 is mounted on the bracket 28. The tape is passed between the rollers of the guide mechanism 29 through the emulsion bath and through the feed mechanism 30 enters the die of the automatic press.

The feed mechanism 30 is driven by a cam 31 fixed to the end of the shaft 2 through the lever 32 and m 33.

The press machine works as follows.

After installing on the press machine a stamp of the corresponding insert 19 in the table 13, the direction of the mechanism 30 is adjusted to the width of the tape. The electric motor 3 is turned on. When the clutch 6 is turned on, the shaft 2 drives the chip 17. The feed of the tape into the chip groove occurs after the catchers and punches of the upper shaft package exit to the upper extreme position. After feeding the tape into a step, the upper bag with catchers and punches is lowered to the lower end position. At the same time, catchers first fix the mite, then punching, cutting, and cutting. After the end of these operations, the upper bag is in the lower leg until the lower punches / bend, stamped parts.

27

are blown away by air and fall down the slide into the container.

Subject invention

Bottom driven press machine for stamping sheet metal parts equipped with two sets of movable tools, one of which is mounted on a slider located above a fixed table connected to a drive shaft communicating relative to the slider via cams; on a plate set in motion another set of interchangeable tools, characterized in that, in order to obtain detailed

a complex spatial shape with an additional clamping in the tape, the plate is placed under the table and equipped with adjusting screws mounted for movement in the through groove made in the plate and interacting with movable tools placed in a removable insert with which the table is provided.

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