SU697234A1 - Multistation ring-expanding rolling mill - Google Patents

Description

one

The invention relates to the processing of metals by pressure, in particular, to devices for the production of ring blanks.

A multi-position ring-shaped mill is known, comprising an outer drive roller mounted in a bed and an swiveling mill placed eccentrically to the swath, guide rollers mounted on the working surface of the table, and internal rolls with axes parallel to the axes of the outer roll and table, arranged around the table circumference and forming with outer roll zone rolling 1.

However, the limestone mill does not provide high accuracy of the diametrical dimensions of the obtained rings.

The closest to the invention is a multi-ring ring-rolling mill, which has an outer roll that is installed in a frame and an eccentric on the front panel mounted on the working table.

table surfaces, guide rollers and inner rolls with axes parallel to the axes of the outer roll and table, located circumferentially and forming with the outer roll a rolling zone, equipped with a mechanism for running the rings, made in the form of a copier mounted on the frame behind the rolling zone along the direction of rotation of the turntable, and the carriages according to the number of internal rolls with rolling rollers fixed to them, each of the carriages being placed on the working surface of the table with the possibility of reciprocating moving along the axis passing through the axis of the table and the outer roll, and the copier is mounted to be in contact with the carriages 2.

In such a mill, it is practically difficult to ensure parallelism of the guide carriages, which can lead to jamming during the reciprocating movements of the carriages.

The aim of the invention is to increase the reliability of the mill.

The goal is achieved by the fact that the proposed mill is equipped with spring-loaded levers installed on the iioBopoTHOM table according to the number of internal rolls, rolls and spreading levers in the levers by adjusting screws with lugs, copying rollers are installed on the swivel levers, and the carriages are straightened and made with supporting platforms contacting with screw caps.

The drawing shows one working position of the mill, a plan view.

The camp is set up in an outer roll of roll 1 and placed eccentrically to the roll. Company table 2, On the rotary table 2 along the circumference of the number of positions of rolling, internal rolls 3 and guide rollers 4 are mounted with axes parallel to the outer axis 1, The mill is equipped with a size 5 cam located behind the mill rolling zone and carriages 6 with roll-in rollers 7 placed opposite the respective internal rolls 3. Each carriage 6 is harnessed to a corresponding lever 8 equipped with a photocopier roller 9 swinging relative to the axis Yu fixed on the turntable 2. The carriage link 6 via cc1). The basic support plates with the lever 8 are made by pressing it with tension springs 11 and 12 to the supporting spherical base 13 of the adjusting screw 14 installed in the lever 8. With the help of the spring 15 the lever 8 is pressed by the roller 9 to the copier 5, and outside the cocyra zone at its end to the stop 16 of the turntable 2,

The work of the proposed mill is carried out as follows.

E (when turning a hundred and 2 due to the gradual alignment of the inner roll 3 to the outer roll 1, caused by the eccentricity of the mutual arrangement of the rotary table 2 and the outer roll 1, the ring rolls up to the obviously large outer diameter.

With further rotation of the rotary table 2, the distance between the rollers 1 and 3 increases, and the copy roller 9 runs onto the copier of size 5,

rotated the lever 8 around the axis 1.0. The lever 8 acts on the harnessed carriage 6 connected to it, pressing its rolling rollers 7 against the ring. In this case, the ring is centered between the rolling rollers 7 and the outward roll roll 1, and with further rotation of the table 2, the ring is rolled to the specified dimensions. After the repetition of the copy roller 9 from the copy 5, the processing of the ring is completed, and the lever 8 under the action of the spring 15 returns to its original position, i.e. rotates before engaging the anvil 16.

 During the whole process, the workpiece interacts with the guide roller 4, which protects it from vibration.

When switching to a different size, the ring requires the necessary movement of the knob screw 14 relative to the lever 8.

In the proposed mill, the running of the rings is carried out by a simple mechanism that prevents jamming of the carriages, which indicates the reliability of the mill operation. The possibility of adjusting the distance between. The roller rollers and the outer roll roller allow the unit to adjust the mill to different sizes of rings.

Claims (1)

Invention Formula A multi-ring rolling mill that contains an external rasstatny roll installed in the bed and a rotary table placed eccentrically to the roll, mounted on the working surface of the table are guide rollers and internal rolls with axes parallel to the axis of the outer roll and table, circumferentially forming the outer rolls the roll zone of rolling, as well as a mechanism for running the rings, including the power of the carriage according to the number of internal towers, with the rolling rollers fixed on them, and the copy rollers, connected with a syringe size, mounted on the bed behind the Eatki races zone, characterized in that, in order to increase the reliability of the mill, it is equipped with spring-loaded pivoting levers mounted on a turntable according to the number of internal rolls and placed in fish-adjusting screws with padding rollers are installed on the pivot levers, and the carriages are sub-fuzhineny and made with support sites in contact with Wieta podtnikami. Sources of information accepted in the examination during the examination 1. V. Lazutin and others. Constructive and technological features koltseraasatnyh to; in: Ayun, Scientific and technical collection of Bearing industry, vol. 3, M., NIINAauto. npoMf 1970, p. nineteen. 2, Copyright certificate for application number 2477О49, kn „B 21 N 1/06 / 1977.