SU128443A1 - The working mechanism of the machine for the production of hairpins - Google Patents

Description

The described working mechanism of the machine for the production of hairpins, in contrast to the known working mechanisms of the same purpose, is provided with a mandrel and a tubular oblique punch mounted on the same slider with a tool for forming undulating sections. This allows the bending and punching of the undulating sections at the same time.

FIG. Figure 1 shows the kinematic diagram of a hairpin hairpin machine; FIG. 2 shows a working mechanism of a machine for simultaneously bending pins and punching of fiber sections, a plan view; in fig. 3 is a view along arrow A in FIG. 2; in fig. 4 is a section along BB in FIG. 3; in fig. 5-tubular oblique punch in two projections.

From the hopper 1, the workpiece 2 is cut off by special overlapping pa 3, which locate it at the level of the dies of the dies - and 5. The slider 6 becomes on the first stage of the cam 7 and, moving in the direction of the workpiece 2, presses it against the mandrel 9 by moving the workpiece 2 to the mandrel 9. The sliders 10 "the first stage of the cams 11 close the movable dies 5, leaving a gap between them for horizontal movement of the workpiece 2. The levers 12 in the first stage of the cams 13 set the workpiece 2 at an equal distance from the dies 4 and 5.

With further rotation of the shaft, the second steps of the cams // clamp the workpiece 2, and the cams 13 by the second stage, through the levers 12 and the punches 14, plant heads at the two ends of the workpiece 2 simultaneously.

After that, the movable plates 5 unclench the workpiece, and the cam 7 by the second stage, moving further the slider 6, pulls the tubular beveled punch 8 onto the mandrel 9, due to the fact that at the tubular punch 8 the end has a bevel at an angle of 30 °, it slides over the mandrel 9 , bends the workpiece 2 around the mandrel 9 ends down. The ends of the bent blank 2 fall between the wavy dies 15 and 16 of the tool to form the wavy portions of the blank 2.

With further advancement of the tubular beveled punch 8 onto the mandrel 9, the ends of the billet 2 are compressed by dies 15 and 16, forming wavy sections of the stud.

Such a device of the described “snake” machine for the production of hairpins allows the mechanization of labor-intensive operations on the bending of hairpins and the stamping of its wavy sections.

Subject invention

The working mechanism of the machine for the manufacture of hairpins, tl and tacho by the fact that in it, for the simultaneous punching of wavy sections and bending hairpins, a bending mechanism was used, consisting of a mandrel and a tubular oblique punch mounted on the same slider with the tool to form undulating areas.

1