SU846005A1 - Bending apparatus for producing parts such as yokes - Google Patents

Description

one

The invention relates to the processing of metals by pressure, in particular to bending devices for the manufacture of parts such as clamps.

Arrangements are known for manufacturing parts of a mandrel-flexible sheet blanks for producing complex parts (Supplied with a bending deck connected to the upper plate of the block with relative axial movement, while the spring-loaded mandrel is mounted on the bending block 1.

The disadvantage of these devices is that it does not provide the possibility of performing the operation of winding clamps.

Bending devices for the manufacture of clamps-type parts are known, containing a mandrel, a matrix interacting with it with a working surface profile corresponding to the first-transition bending profile of the bending, a turning tool for final bending, two sliders, carrying working tools and moving in the plane of bending, and mechanisms connecting ), i movable working tools with a drive 2.

These devices make it possible to combine operations of preliminary and final bending on one position, however, the quality of the parts obtained is not high.

The purpose of the invention is to increase the quality of parts.

To this end, the matrix is made with a wavy profile of the working surface and is fixed, the mandrel is mounted on one of the sliders, the device is equipped with a punch interacting with the matrix fQ located on the other slide from the side opposite to the mandrel relative to the matrix, the turning tool of the final bending is made as interacting with the mandrel of the bending roller placed on the working surface of the die, and the mechanism connecting the rotary tool with the drive is made in the form of a carrier, carrying first bending roller and fixed to the shaft.

FIG. 1 shows a kinematic diagram of the device; in fig. 2 shows a scheme for the manufacture of a yoke by transitions.

The device for the manufacture of parts such as clamps contains a fixed matrix 1 with a wavy profile working

the surfaces and the rotary tool of the final flexible - bending rollers 2 and 3, which are connected via a gear camshaft 4 and 5 and 1 hinge levers 6 and 7, are connected by a camshaft 8. The slider 9, the mandrel not 10 and 11, is connected with The uuipnHpHoio of the lever 12 is connected to the camshaft cam 8, and the punch 13 having a mirror profile of the matrix is also connected to the shaft 8 via the articulated lever 14 to clamp the buckle cone. 15, on which the ejector 16 is mounted. Crimping 15 is connected through P1 hinge system 17 with a camshaft 8. The camshaft 8 is connected to an electric motor 18. On the slider 9 a cutter 19 is mounted, and on the matrix 1 there is a stop 20 for fixing the workpiece to the position . The device is equipped with a storage of blanks, made in the form of a ratchet wheel 21, kinematically connected with the cam and shaft 8.

The device works as follows. Acceptance of the ratchet wheel 21 is filled with blanks. In the retracted position of the shutter 19, the next blank slides down to the stop 20. From the spreading: dividing 1-camshaft 8 through the ry: chag 14, a punch 13 comes in motion, which in its path catches the nolzun 9 carrying the mandrels 10 and 11 and driven through the lever 12 from the camshaft 8. The poapsop 13 and the mandrels 10 and 11, as a whole, bend the workpiece but the profile of the matrix l at this time, the workpiece also radiates a wave-like profile. After that, the nanoscope 13 departs from the matrix 1, and the slider 9 with the mandrels 10 and 11 remains in place, with the slam-shutter 19 preventing the new workpiece from entering the working position. The small roller 2 enters into operation, the drive of which is carried out from the distribution box: 1 of the shaft 8 through the lever 6 and the transfer of the pivots - rake 4 and 5. The bending roller 2 curls the end of the wave-shaped workpiece around the small frame 10. When the roller 2 departs, the work enters Big bending roller 3, which receives a drive from camshaft 8 through lever 7 and center of rail - rail 4 and 5. Roller 3 curls the other end of the wave-shaped workpiece around the large mandrel 11. When roller 3 departs, a taper clamp 15 enters getting motion through the pivotal-lever system 17 from the camshaft 8. Crimping 15 reduces the billet scallops to a cone and moves slightly. After that, the slider 9 with mandrels 10 and 11 moves away from the matrix 1 together with the part and goes to the ejector 16. At the end of the move of the slider 9, the cutter 19 opens the inlet sh, spruce drive 21 and rotate the ratchet drive one tooth from the camshaft 8 through a kinematic chain (not shown), and the following

the workpiece arrives at the working position.

Then crimp 15 with ejector 16

moves back completely, reset

details in the bunker (not shown). Further

cycle- 1uv repeats.

Claims (2)

Invention Formula A bending device for the manufacture of parts such as clamps, containing a mandrel, the matrix interacting with it with the profile of the working surface corresponding to the profile of the workpiece of the first transition | ibki, the final tool of the final bending, two sliders, carrying working tools and moving in the first, the first flexible, and mechanisms linking the movable workers and Petru.Nmentrides, characterized in that, in order to improve the quality of the parts produced, the matrix is made with a wave-like profile the surface is fixed and fixed; the mandrel is mounted on one of the sliders; the device is provided with a punch interacting with the matrix located on the other slider from the side opposite to the mandrel relative to the matrix; and the mechanism connecting the rotating tool with the drive is made in the form of a carrier carrying a bending roller and mounted on the shaft. Sources of information taken into account during the examination 1. USSR Author's Certificate No. 288927, cl. B 21 D 53/36, 11.11.66. 2. Malov A. N. Cold Pampering Technologists. L1 .., 1958, p. 213-215, FIG. 43 (prototype).