CN201164894Y

CN201164894Y - Cold rolling roundness roller adjusting apparatus

Info

Publication number: CN201164894Y
Application number: CNU2007201312237U
Authority: CN
Inventors: 赵秀婷; 徐国勤; 张兴侬
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-12-04
Filing date: 2007-12-04
Publication date: 2008-12-17
Anticipated expiration: 2017-12-04

Abstract

The utility model relates to a cold ring rolling circular roller adjusting device, comprising a circular roller, a shaft of the circular roller, a supporting plate of the circular roller, a rotary arm, a rolling needle, a bearing of a thrust ball on the end face and a guide key. The shaft of the circular roller is embedded into the supporting plate of the circular roller, and is locked by means of nuts; the supporting plate of the circular roller is connected with the rotary arm; a profiled groove, whose shape is consistent with that of the surface of the workpiece, is processed out from the surface of the circular roller; the circular roller is arranged on the shaft of the circular roller by means of the rolling needle and the bearing of the thrust ball on the end face; and the supporting plate of the circular roller is connected with the rotary arm by means of the guide key and a fastening screw. As the cold ring rolling circular roller adjusting device is adopted with the rolling needle and the compound bearing of the thrust ball, the cold ring rolling circular roller adjusting device has the axial bearing capacity, and at the same time eliminates the axial clearance of the circular roller. The initial position can be controlled to be positioned correctly by adjusting the position of the supporting plate that slides along the guide key relative to the rotary arm, and thus the taper can be prevented from being produced. The cold ring rolling circular roller adjusting device can cold ring rolling process the workpieces whose outer surfaces are outside spherical surfaces or irregular geometrical shapes.

Description

Circularity roller adjusting device is expanded in cold rolling

(1) technical field:

The utility model relates to the cold rolling of cold-rolling enlarging machine bed when processing spherical outside surface lasso and expands circularity roller adjusting device.

(2) background technology:

Referring to accompanying drawing 1, cold-rolling enlarging machine bed processing is that workpiece is placed between rolling wheel and the core roller, and circularity roller and measuring roller place the workpiece outside, and the active rotation by rolling wheel drives workpiece under the support of circularity roller and measuring roller around self center rotation; Force to rolling wheel and close when support wheel promotes the core roller, the wall thickness part of workpiece is attenuate gradually constantly, and the external diameter of workpiece constantly rises greatly, and the cross sectional shape of workpiece is consistent with the die cavity of mould; When measured value reached setting, support wheel retreated, and core roller and rolling wheel separate, and the core roll shaft is drawn back; The workpiece blanking.Cold rolling is expanded the circularity and the tapering of the workpiece of processing and is controlled by the circularity roller, the control principle of tapering forces an end of circularity roller extruding workpiece auger for adjusting around cylindrical pin with respect to the supporting plate of pivoted arm rotation, thereby makes workpiece metal flow in process improve the tapering of workpiece to an end of conelet.

In the said structure, the circularity roller arrangement is to adopt hard cylindrical sleeve to be installed on the circularity roll shaft by flanger bearing bush, the circularity roll shaft is inlaid on the circularity roller supporting plate, and supporting plate is connected with pivoted arm with trip bolt by cylindrical pin, and hard cylindrical sleeve is freely rotated and axially gapped around roll shaft.

In the prior art, cold-rolling enlarging machine bed circularity roller arrangement only is applicable to that workpiece is that common ball bearing race or outer surface are when having face of cylinder section.When spherical outside surface or outer surface when being irregularly shaped, existing circularity roller arrangement can not be controlled the generation of tapering, mainly is that control principle can not be realized the flow direction of metal in the course of the work.

(3) summary of the invention:

The utility model aim to provide a kind of can be cold rolling to expand the processing outer surface be that circularity roller adjusting device is expanded in the cold rolling of the workpiece of spherical outside surface or irregular geometry.

Technical solution of the present utility model is as follows:

Circularity roller adjusting device is expanded in a kind of cold rolling, comprise circularity roller, circularity roll shaft, circularity roller supporting plate, pivoted arm, described circularity roll shaft is inlaid on the circularity roller supporting plate and by nut check, circularity roller supporting plate is connected with pivoted arm, it is characterized in that: it also comprises thrust ball bearing, the feather key of needle roller and end face, described circularity roller Surface Machining goes out the type groove consistent with the workpiece external surface shape, the circularity roller is installed on the circularity roll shaft by the thrust ball bearing of needle roller and end face, and circularity roller supporting plate is connected with pivoted arm with trip bolt by feather key.

The utility model has adopted the composite bearing of needle roller and thrust ball, has axial bearing capacity, has eliminated the circularity roll shaft simultaneously to the gap.Thereby accurately locate with respect to the supporting plate position control workpiece initial position that pivoted arm slides by adjusting, eliminate the generation of tapering along feather key.

Further technical solution is:

Guider adopts feather key.

Feather key is the simplest structure.

The utlity model has very long working life, well adjust precision and reliability.

(4) description of drawings:

Below with reference to drawings and Examples the utility model is described in further details:

Accompanying drawing 1 is the structural representation of cold-rolling enlarging machine bed circularity roller arrangement in the prior art.

Accompanying drawing 2-1 is the structural representation of the utility model embodiment.

Accompanying drawing 2-2 is that the A-A of accompanying drawing 2-1 is to schematic diagram.

Accompanying drawing 3-1 is the structural representation of the utility model embodiment medium-height trestle plate.

Accompanying drawing 3-2 is that the B-B of accompanying drawing 3-1 is to schematic diagram.

Each sequence number is respectively in the accompanying drawing: 1, circularity roll shaft; 2, thrust ball bearing; 3, circularity roller; 4, needle roller; 5, cushion cover; 6, nut; 7, supporting plate; 8, rolling wheel; 9, workpiece; 10, core roller; 11, measuring roller; 12, support wheel.

(5) specific embodiment:

Referring to accompanying drawing 2-1,2-2,3-1,3-2, among the utility model embodiment, circularity roller 3 is installed on the circularity roll shaft 1 by one group of needle roller 4 and a pair of thrust ball bearing 2, the terminal cushion cover 5 of installing of circularity roll shaft, circularity roller and cushion cover are inlaid on the supporting plate 7, and nut 6 lockings are also eliminated the circularity roll shaft to the gap.

One guiding keyway is arranged on supporting plate 7, and feather key is installed in the keyway and locking; It is that the lock-screw hole is installed that 4 mounting holes are arranged on supporting plate, guarantees that supporting plate is connected with pivoted arm and along certain adjustment amount is arranged on the feather key direction; One hole is arranged for adjusting the adjusting pin-and-hole of supporting plate along the feather key carriage in the supporting plate lower left.Between supporting plate and pivoted arm, adjusting device is arranged, thereby the axial location of circularity roller 3 is adjusted in position that can the trimming rack plate, when spherical outside surface workpiece in process produces tapering, the sub-material of big tapering end is on the high side, by the trimming rack Board position workpiece blank is offset to the few end of sub-material from the many ends of sub-material, guarantee accurate positioning, realize zero draft processing.

Certainly, under inventive concept of the present utility model, the utility model has multiple form of implementation, can adopt screw structure as guider, can reach the purpose of this utility model equally, more than these, to those skilled in the art, read and need not pay creative work behind this specification and can reveal again, just do not described in detail at this.Adopt the above-mentioned replacement scheme that is equal to fall into protection domain of the present utility model certainly.

Claims

1, circularity roller adjusting device is expanded in a kind of cold rolling, comprise circularity roller, circularity roll shaft, circularity roller supporting plate, pivoted arm, described circularity roll shaft is inlaid on the circularity roller supporting plate and by nut check, circularity roller supporting plate is connected with pivoted arm, it is characterized in that: it also comprises thrust ball bearing, the guider of needle roller and end face, described circularity roller Surface Machining goes out the type groove consistent with the workpiece external surface shape, the circularity roller is installed on the circularity roll shaft by the thrust ball bearing of needle roller and end face, and circularity roller supporting plate is connected with pivoted arm with trip bolt by guider.

2, circularity roller adjusting device is expanded in cold rolling according to claim 1, and it is characterized in that: described guider is a feather key.