SU1546191A1 - Arrangement for manufacturing shells - Google Patents

Abstract

The invention relates to the processing of metals by pressure and can be used in mechanical engineering and construction in the manufacture of shells from sheet material. The purpose of the invention is to increase productivity and expand technological capabilities. The device comprises a table 1, a bending tool made in the form of a loop of a flexible two-weave thread 2 and two drums 9 for pulling the ends of the loop. Before the start of bending, the sheet blank is placed with its edges on the support bars 7. When the ends of the threads are strained, the blank 10 acquires a cylindrical shape due to the initial deflection under the action of the loop covering it and the support bars moving along the threads. For the manufacture of conical shells, there is a tension axis 5 installed below the table supporting surface, which is configured to adjust the angle of inclination by means of a bolt 4. 2 Cp. F., 7 ill.

Description

Fsch.1

FIELD: processing of moto. pressure and can be used for windshield and construction (for example, in the manufacture of shells from leaflets on the material).

The purpose of the invention is to increase productivity and expand the technological capabilities of the device.

FIG. 1 shows the proposed device in front of the workflow; in fig. 2 - the same, d. End of work; in fig. 3 - mechanism for adjusting the angle of the tensioning axis of the tension axis; in FIG. 4 - (table-, on Lig. 5-7 - variants of the tension axis.

The device for making shells contains table 1 and flexible threads 2. Stops are fixed with stops 3, adjustment bolt 4, tension axis 5c with hole 6 for adjustment bolt 4 located below the supporting surface of table 1 with the possibility of adjusting movement of one end in the vertical plane. The supporting films 7 are mounted on the table and are connected with the possibility of movement along them. Spacing strips 8 are connected with flexible strings, and the ends of flexible strings are fastened on tensioning drums 9.

The device works as follows.

Before starting work, the support strips 7 are pushed along the flexible threads and placed on the table surface so that the pistap billet slides over the supports until it is installed and relied on the support strips 7 before working with the edges. Then the flexible threads 2 are wound by hand or with an electric motor 9 The flexible filaments are tightened and a shell is formed from the blank 10. The support bars under the action of the force of the sheet slide freely along the flexible threads and the surface of the workpiece, they contribute to the formation of the shell. The billet takes on a cylindrical shape due to the elasticity of the sheet, the impact of flexible threads and the support bars, as well as the initial, initial bending of the workpiece under its weight, the edges of which are located on the support bars. The complex of well-trained technical solutions contributes to the formation of cylindrical products. When the edges of the workpiece approach each other, they are connected to the park or compressed without a strong device D

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condition. , 1p, remove both str., And loosen the 1nbits of thread 2, lubricate them from the drums 9 and remove the finished shell from the table.

At the bottom of the cone sheath, one end of the axle 5 is moved by the adjusting bolt 4 down the pertikapn. The billet is made in the form of a trapezium providing a predetermined taper. The process of making a cone shell is similar.

To obtain an overlap joint and a multi-layer shell, the drums 9 are positioned at different heights from the table. In this case, the flexible yarns of the upper drum contribute to the location of the edge of the workpiece, which they form, on top of the other edge, formed by the threads connected with the lower drum. Similarly, receive and multilayer shells. Multilayer shells are needed to increase their carrying capacity, stiffness.

In practice, drop-shaped shells are also necessary, for example, when it is necessary to pass a shell through a slotted window, an opening. To obtain shells with a drop-shaped profile, spacers are removed. The process of making drop-shaped shells is similar.

The proposed device reduces the time for preparation, manufacture and removal of the finished product, i.e. improves performance The device makes it possible to obtain shells of various sizes in length and cross section, conical, multi-layered and drop-shaped shells with folded, standing and smooth seams. The device is simple and cheap.

I

Annual economic effect with

using one device will be 149 rubles.

Claims (1)

Formula and formula 1. A device for making shells, comprising a table, a bending tool, made in the form of a loop of a flexible thread and a mechanism for tightening a loop of a flexible thread, which is made up of a chain of productivity The table is located in the horizontal section of the platform and is equipped with two piers PI of the stand located above the table supporting surface. I-. US T () | 1:. . I it in about c (h ts, h t, g with the expansion of technological noschpzhnoe; - the one that works; it is equipped with a tension axis fixed below the supporting plane of the table with the possibility of adjusting the tilt angle of the table with holes) - for passing the loop threads under the table, the mechanism for tightening the loop from the flexible thread is made in the form of two driving drums mounted on opposite sides of the table with the possibility of adjusting movement in the vertical plane, the loop of the flexible thread is made of two ve tway that d its middle bottom vypspy with the possibility of reciprocating the tension axis, each of the supports is made in the form of a bar, freely mounted on the table, connected with a section of a two-leg loop with the possibility of free movement along both branches of the loop. 3. The device according to PP. 1 and 2, about t - in that it is provided with two spacer bars, each of which is associated with two-leg loops located between the corresponding supporting drums with the possibility of free movement along the threads, and the tension axis is rigidly connected with the branches of the thread. Yda Fig.} / T D7 / D7 D 7/& 1 / FIG. five FIG. 6 FIG L