RU1821267C - Device for making holes in walls of hollow products - Google Patents

Abstract

Usage: when processing pressure hollow. Products such as bushings. SUMMARY OF THE INVENTION: a device for punching holes in hollow articles comprises a C-shaped die holder 12 with a die, a loading unit with a vibratory hopper 20 and a tray 15, a rotary disk 18 for moving products from the tray 15 to a working position. The rotary disk 18 moves the workpiece to its working position. Under the action of the lever 8, the clamp raises the workpiece and installs on the mandrel-matrix. The slider 6 moves the punch holder 9 with the punches. Punches sequentially punch holes in the wall of the workpiece. Punching waste is disposed of with compressed air, 2 psp, beat.

Description

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The invention relates to cold stamping, in particular to punching holes in the walls of hollow articles such as bushings, and can be used in various metal processing industries.

An object of the invention is to improve operating conditions.

In FIG. 1 is a plan view of a device for punching holes in the walls of hollow parts; in FIG. 2 is a section AA in FIG. 1; FIG. 3 and 4 - sequence of punching holes with punches; in FIG. 5 is a section BB in FIG. 1; in FIG. 6 is a section BB of FIG.

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A device for punching holes in the walls of hollow articles contains a table with a horizontal plate 1. on which a motor 2, a crank mechanism with a flywheel 3. a crank 4, a connecting rod 5 and a slider b, a clamp 7 with a drive lever 8. are mounted in a kinematic connection 9 with punches 10 and adjusting screws 11, a matrix holder 12, a mandrel matrix 13 with holes for supplying compressed air 14, a puller 15 with a spring 16, a tray 17, a rotary disk 18 with holes 19, a vibratory hopper 20, a ratchet mechanism 21 with ratchet 22 and sense body 23, the drive lever 24, the cam shaft 25 with the cams 26,27,28, gears 29, 30.

The device operates as follows.

A flywheel 3 with a crank 4 receives rotation from a motor 2 through a belt drive, and a slider 6 makes a reciprocating motion through a connecting rod 5 through a connecting rod 5, and with it a punch holder 9 with punches 10 from a gear wheel 30 located coaxially with the flywheel 3, through the gear 29 is rotated by the cam shaft 25, from

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otoro cam 28 by means of a push; 23 and ratchet 19, the claim 18 is rotated. Cam 27 through the lever 8 secures the drive of the puller 15.

Claims (3)

The operation cycle of the device begins with the rotation of the disk 18 with the workpiece 31, bringing it to the processing position. From the drive lever 8, during the upward movement of the clamp 7, the workpiece 31 is lifted and mounted on the mandrel-matrix, resting on top of the spring-loaded puller 15. The clamp 7 also fixes the rotary disk 18. When the punch holder 9 is moved from the reciprocating slide b, successive punching of holes in the wall of the workpiece 3.1 with punches 10 is made. The waste generated from punches with punches 10 is removed by compressed air supplied through the hole 14 in the mandrel matrix 13. Then, from the drive lever 8, the clamp 7 lowers, and the puller 15 from the drive arm 24 returns the finished product to the hole 19 of the rotary disk 18. The finished product with the disk 18 is transported to the dumping position, where it falls (Fig. 6) through the hole in the plate 1 into the receiving container (in Fig. not shown). The workpieces 31 are fed to the rotary disk 18 from the vibratory hopper 20 along the tray 17. The drive levers 8.24 and the ratchet mechanism 21 are driven by cams 26, 27, 28 mounted on a cam shaft 25, rotating from gears 29. 30. Formula of the invention 1. A device for punching holes in the walls of hollow articles such as bushings, comprising clamps connected to the slider and arranged in a C-shaped punch holder, and also containing a mandrel matrix mounted on the matrix holder, a puller mounted thereon, product loading unit, vk yuchayuschy tray, means for moving articles from a tray to a working position, characterized - o f e to the fact that, in order to improve operating conditions, the matrix holder is made in the form of a L-shaped bracket, the matrix is placed in its cantilever part, the punch holder is mounted on a slider, the punches are installed in the punch holder with the possibility of adjusting movement along the axes, the loading unit is equipped with a vibrating hopper, the means of moving products from the tray to the working position is made in the form of a rotary disk and ratchet mechanism, the clamp is made in the form of a rod installed with the ability to interact with the product and fix the rotary disk, puller equipped with a spring pressing it in the direction of the cantilever part of the L-shaped bracket. 2. The device according to claim 1, wherein the clip is connected to the slider by means of a cam shaft, a crank shaft, a system of levers and pushers. 3. The device according to claim 1, it is noteworthy that the working holes of the mandrel matrix are in communication with a source of compressed air. : fi. { hirsch ppshhpke 52 NJ. I AND;