SU1428499A1 - Multistation bending device for manufacturing parts of bushing type - Google Patents

Abstract

The invention relates to the processing of metals by pressure and can be used for the manufacture of products such as sleeves. The goal is to improve the quality of products by increasing the geometric accuracy of products. The device contains bending assemblies installed along pairs in a staggered order. Each bending unit has a mandrel and half matrix sections. The adjacent sections of the semi-matrix are made in the form of single blocks carrying the cutting protrusion and the recess for its placement. The other sections have cutting edges and indentations. The bending is carried out in four transitions of two sleeves simultaneously with their separation by a cutting protrusion on the fourth transition bending. 5 il.

Description

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The invention relates to the processing of metals by pressure and can be used for the manufacture of parts such as sticks.

The purpose of the invention is to improve the quality of products by increasing the geometric accuracy of products.

FIG. 1 shows a bending device, the initial position; in fig. 2 - all elements of the device, the position after the first transition; in fig. 3 - the same, a favorite after the second transition; in fig. 4 - tf, the position after the third transition and | after the end of bending; in fig. 5 - the same position after the fourth transition.

The device comprises bending units installed in pairs along the feed direction. Each pair of bending knots is installed in a staggered order relative to the neighboring one and contains mandrels 1 and 2 of sections 3 and 4 of semi-matrices with cutouts, they surround them another quarter of the perimeter around mandrels 1 and 2.

The third transition is performed by block 12, which, when it is fed forward, performs the final bending of the ends of the double billet around mandrels 1 and 2.

The fourth transition is performed by block 6, which, with its cutout, by its projection 7, separates the products from one another and finally bends the ends around the mandrels 1 and 2.

At the end of the bend, the semi-matrix sections are simultaneously retracted to the rear end position, and the sleeves are removed from the mandrels (not shown).

The puller is retracted to the extreme rear position and, at the same time, guides 16 and 17 are exposed. Material is fed. Then the cycle repeats.

Thus, the flexible sleeves are performed sequentially, by a quarter of the length in 10

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p-edges 5, block 6 of the sections of the semi-preparation, both ways, which provides the dies, the flooring, the cutting edge 7, the sections, the uniform stretching of the workpiece, and

block

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8 and 9 semi-matrixes with the grip carver of the ends of the double-sided 1 $ section of semi-matrixes with notch 13 under cutting protrusion 7. Blocks 6 and 12 are mounted with the possibility of moving perpendicular to the feed direction relative to sections 3, 4, 8 and 9.

The device also comprises a gripper 14, an emphasis 15 and guides 16 and 17 for a long material.

The device works as follows. In the initial position, the elements of the bending device are in the position when the pre-chopped long material is fed into. size up

and uniform thickness of the workpiece along its perimeter and geometric accuracy.

Claims (1)

Invention Formula Multi-position bending device for the manufacture of parts such as bushings of sheet material, containing bending assemblies installed along the feed direction, each of which includes a mandrel and semi-matrix placed on opposite sides of it, one of which has at least one indentation and another - at least At the time of 15, I’ll direct 16 and 17 to exclude one cutting edge, while the floor is bending the notched material and leaving it from a predetermined position, sections 3, 4, 8, and 9 of the dies in the rearmost position, block 12 is moved forward and rests against the mandrels 1 and 2, excluding their bending. Saws with cutting edges are placed successively on opposite sides with respect to the direction of supply, characterized in that, in order to increase the quality of products by increasing the accuracy of a pair of bending of products, at all working positions of 40 meters of bending units, a pair of curvature bends around another quarter of the perimeter around mandrels 1 and 2 . The third transition is performed by block 12, which, when it is fed forward, performs the final bending of the ends of the double billet around mandrels 1 and 2. The fourth transition is performed by block 6, which, with its cutout, by its projection 7, separates the products from one another and finally bends the ends around the mandrels 1 and 2. At the end of the bend, the semi-matrix sections are simultaneously retracted to the rear end position, and the sleeves are removed from the mandrels (not shown). The puller is retracted to the extreme rear position and, at the same time, guides 16 and 17 are exposed. Material is fed. Then the cycle repeats. Thus, the flexible sleeves are performed sequentially, a quarter of a length per and uniform thickness of the workpiece along its perimeter and geometric accuracy. Invention Formula Multi-position bending device for the manufacture of parts such as bushings of sheet material, containing bending assemblies installed along the feed direction, each of which includes a mandrel and semi-matrix placed on opposite sides of it, one of which has at least one indentation and another - at least one cutting edge, with a floor mat The cutting edges are placed sequentially on opposite sides with respect to the direction of feed, characterized in that, in order to improve the quality of the products by increasing the accuracy of the parameters, the bending knots are installed The ti chi is performed simultaneously in the following sequence: the guides 16 and 17 are removed, after which the first transition is bended by feeding sections 3 and 4 forward, and with their front ends they separate the double billet from the long material and bend around its ends around the mandrels I and 2 per quarter of the sleeve perimeter. The block 12 is retracted to the rear end position, freeing space for the passage of the ends of the workpiece. On the second transition, the billet simultaneously bends both ends of the workpiece with sections 8 and 9, which, with recesses 10, capture the ends of the workpiece and the working end 0 but each pair is placed in a shakhmatny order relative to the adjacent pair, cutting edges are placed on the outer side of each pair, each semi-matrix is made of sections symmetrical to the plane passing through the axis of the corresponding mandrel, while adjacent sections of semi-matrix one pair of bending nodes are made in the form of single blocks mounted for movement relative to other semi-matrices in the direction perpendicular to the feed plane, and made with opposite ones on the corresponding block re sticking protrusion and recess for its placement. 70 eight eleven g J (V Yu 6 P irVo. at lu T.S. J Yu 17 / G P4J 1 (Y / Y .f / / F / corner jig FIG. five