SU622533A1 - Press for making branch-off tube fittings - Google Patents

Description

The invention of ognosigs for the central processing unit of megapups processing by the unit, in part to the central presses, was performed by the extrusion of pipe branches by hot drawing on the horn-shaped heart socket.

The press of the center pipe from the lateral stretching on the taxis of the centerpiece is known, the social mechanism is flexible, including a rod with a horn-shaped core, and a movable traverse connected with the rods of power tsipz fl.

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However, there is no device in this press that provides lubrication of the working surfaces of the core. Manual lubrication enhances the labor required for manufacturing pipe bends.

Known press 21, which is additionally equipped with a device for mechanized supply of graphite lubricant to the inner surface of pipe blanks, including the capacity of lubricant and the system for supplying the bottom through drilling in power locks and rod of the horn-shaped core.

However, such a device dp lubrication is difficult and does not provide a reliable (stable) lubricant supply. Due to the long length of the lubrication trenches and the presence of bends in them, it is necessary to create a high pressure using a special pump. During breaks, graphite grease dries out, hardens and clogs the radial holes and the internal cavity of the rod, the cleaning of which is difficult. In addition, in this device it is difficult to ensure the tightness of the connection of the holes in the bar and power locks, which (open before the next cycle of stretching. Reduction of the useful section, the bars with an additional internal hole in the place of the clamp with its power locks weakens the bar and shortens the service life due to breakdowns In this place.

The aim of the invention is to simplify the design, increase the reliability of the press at work.

Claims (1)

This chain is achieved by the fact that on the inner surface, the pusher, copacti382 hands with shgangoy made a spear groove, connecting the radial shaft with the sisgemoz of the lubricant supply lead, when this system introduced a valve that provides the lubricant during the working distance of the traverse. The drawing shows a schematic drawing of a bushing piping press with pipelines for lubrication. On the press bed 1, we see cylinders 2, the rods of which are connected by a movable cross-member 3 with a topcatep 4. The pipes-billets 5 are put on continuous section 6 with a horny core 7 at the end. The bar 6 is supported by the front non-type 8 and the rear 15 by power 9 locks with their locks. The pusher 4 consists of two opening parts that have an internal annular groove 1O. In the lower part of the pusher 4 there is an opening 11 for feeding the rod 6 of lubricant through the fitting 12 through the flexible hose 13 from the tank 14. Under the piston 15 of the tank, the air from the workshop network is transmitted through the electromagnetic: B valve 16 , included in the electric circuit of the press and triggers triggered during the working stroke. 3. The press operates as follows. With the inclusion of the stroke of the traverse 3, a two-valve valve 16 is turned on, supplying air under the piston 15 Lubricant from the tank 14 through the flexible sleeve 13, through the valve 12 enters the hole 11 of the pusher 4 and then into the annular groove between the schtanga 6 and the pusher. When the working stroke of the crosshead 3, the pusher 4, moving along the rod 6, lubricates its outer surface with an even layer of lubricant. After the billet 5, which is worn on the rod 6, the power cylinders 2, reverse traverse 3, will bend. 3 The front non-type hydraulic lock 8 is closed, the rear power lock 9 is opened and the billet pipes are fed to the rod 6. At the same time they are smeared. When the blank billets pass through the rear lock 9, they are picked up by the hopkatep 4, the rear lock 9 is closed, and the front lock 8 is unlocked. | 1Dile of lubrication and retraction is repeated. The use of a press with the proposed device for lubricating tubular blanks before broaching provides an uninterrupted, reliable lubricant supply, automates the lubricant press, reduces acceleration and wear of the horn-shaped heart-shk, and extends the service life. shtangn, reducing bulk capacity and improving the quality of diverters. Claim 1. A press for the manufacture of pipe blocks containing a bending mechanism including a bar with a heart-shaped horn. com, movable traverse connected to the rods of the power cylinders and the carrier pusher, and a device for lubricating the inner surface of the workpieces, in the form of capacitance. connected to the lubrication supply system. However, they are also distinguished with a chain of simplifying the design and increasing press reliability, an annular groove is made on the surface of the pusher, connected by a radial channel to the lubrication supply system, while the latter has a two-valve valve for lubricant supply during the working stroke. information taken into account during the examination: 1. USSR author's certificate NO 512824, cl. B 21D 9/12, 1976. 2, USSR Copyright Certificate No. 199801, cl. B 21 C 37/28, 1976. /////////