SU118797A1 - Stamp of successively combined action for making two shelf foals in one stroke - Google Patents

Description

The described successively-combined stamp for making two-half-round foals in one move of the crawler is simpler as compared to the known stamps of similar type. ,: e of the working stroke of the punch, the pillars of the foal with the formation of stiffeners on them, keeping the workpiece in the desired position when the punch bends the shelves and ejects the finished products.

FIG. 1 shows a sectional view of the stamp; FIG. 2 is the same, top view, in FIG. 3 is a sectional view of the ABC in FIG. 2

The stamp includes three main assemblies: a matride assembly, a slotted punches assembly and a bending punches assembly.

The matrix assembly has a plate. /, In the slot of which spacers 2 are placed. From above, the spacer 2 is bolted with bolts 3 and 4 and the matrix 5 and puller 6 with clamp 7 and spring 8 are removed. Puller 6 is designed to remove the stampable die | In the spacer 2, a bend-die 9 fixed on the plate 1 is placed, in the slots of which the diverter 10 moves, mixing the stamped part from the bending chamber. In the two other cuts of the die-punche, two rods // are simultaneously moved, forming the die in the required size, the formation of stiffeners on the studs and the additional dropping of the foal. From the bottom of the slab 1, a shock absorber cup 12 is glided, in which the springs J3 springs of the shtoha and the springs 14 of the double-rod pusher are placed. The adjustment of the spring reinforcement is made by turning the plugs 15.

A top stop 16 is placed on top of the slab / /, which provides the transition step for the first two strokes of the press ram. In the stove are located

No. 118797-2 -

four guide columns, two columns / 7 of which serve for movable coupling of the bending punch assembly and two columns 18 for coupling of the slotted punches assembly with the matrix assembly.

The slotted punches assembly is a plate 19 with two guide bushings 20. In the lower part 4:; the plates are laid; there is a punch holder 21 with a set of penetrating and piercing punches 22, 23 and 24. In the upper part of the plate 19 a lower bearing 25 is pressed in, through which the force of the press is transmitted to the slotted poin knot, which during operation is retracted to the initial position by springs 26.

Bending punch assembly (Consists of a holder 27 with two trimming sleeves 28. A bending cutting punch 29 is mounted in the lower part of the holder, IB of which is provided with two twin shtyok shiboi 30. stiffeners and dropping of the stamped foal. The dropping is done by the force of the spring 31. In the right part of the holder 27 is placed the upper support 32, by means of which the pressing force is transmitted to the lower support 25 and to the slotted punches assembly A spider 33 is placed on the left side of the holder, which pushes the ejector 10 into the lower position. On top of the holder is a shank 34 serving for fastening the punch in the press ram.

The production of foals is carried out as follows. The blank is fed manually under the puller 6 and at the same time abutment 3 is withdrawn (from itself). The strip advances to the projection of the abutment. The stop is retracted by a spring 35 to the AND |; the floating position. During the first pass of the press ram, the punches 22 and 23 pierce two holes and transversely cut through the workpiece. Then the rest 3 is squeezed out (manually), the strip advances to the second stop shoulder. The stop is released to its original position, the slider makes a second move, for which the punch 24 produces a longitudinal slotting of the workpiece; The punches 22 and 23 perform the same work as in the first run of the ram. After the second pass, polo | s .a; served up to rigid stops 36 and the press slider is turned on to the working stroke. The stamped foal with the ejector 22 is pushed out of the die and placed in the bending chamber, from which the die is pulled out by means of a hook.

Subject invention

A series-aligned stamp for producing two-half-round foals in one stroke of a ram, characterized in that, in order to simplify the construction of the chip, the poapso "are mounted with spring-loaded stops that interact with the same stops in the matrix and are designed for clamping between their heads during working the stroke of the punch, the stalls of the foal with the formation of stiffeners on them, holding the workpiece in the desired position when the punch bends the shelves and ejects the finished product from the matrix.

Committee for Inventions and Discoveries at the Council of Ministers of the USSR Editor L. G. Golandsky Gr. 22

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