CN2130638Y

CN2130638Y - Rolling device for cylindrical surfaces of shafts

Info

Publication number: CN2130638Y
Application number: CN 92216163
Authority: CN
Inventors: 夏学义; 凌珊; 于敬义
Original assignee: DALIAN ROLLING STOCK PLANT MIN
Current assignee: DALIAN ROLLING STOCK PLANT MIN
Priority date: 1992-06-08
Filing date: 1992-06-08
Publication date: 1993-04-28
Anticipated expiration: 2002-06-08

Abstract

The utility model discloses a rolling device for cylindrical surfaces of shafts, in which a composite roller rack is formed by a fixed roller rack and a rotary roller rack. A roller whose axial line forms an alpha angle with the axial line of workpiece is arranged on the rotary roller. A small circular bead rolling surface, an end surface rolling surface and a clearance surface are arranged on the roller, wherein, the end surface rolling surface forms a ninety minus alpha included angle with the axial line of the roller, and the clearance surface forms a beta included angle with the end surface rolling surface. The rotation of the rotary roller rack is controlled by a handle mechanism which operates the two rollers work alternately. Without replacing the roller rack, the rolling treatment of circular bead of different sizes, circumference and end surface on cylindrical surfaces of shafts can be completed.

Description

Rolling device for cylindrical surfaces of shafts

The utility model relates to a kind of for processing the equipment that the rotation outer round surface designs, and more particularly, is that a kind of being fixed on the lathe saddle carried out the device that roll extrusion is handled by what roller stand and roller constituted to axle class outer round surface.

Axle class outer round surface is carried out roll extrusion handle, can improve the surface quality and the endurance life of such part.The rolling device that uses in the existing production, function singleness, range of application is narrow, and the roller of roll extrusion fillet can not be used for the roll extrusion end face, and the roller of the big fillet of roll extrusion is unsuitable for the little fillet of roll extrusion again.Resemble the workpiece that this class of motorcycle axle total differ in size many places fillet and end face need roll extrusion to handle, with axle of existing rolling device processing, need repeatedly to change the roller stand that has the different size roller, all to do during each the replacing and readjust rolling device, both required great effort, time-consuming again, surface roughness also is difficult to reach requirement.

The purpose of this utility model is to make a kind of like this rolling device, and it can overcome axle of above-mentioned processing needs repeatedly to change different deficiencies of rolling frame, reaches and does not change roller stand, just can finish the rolling and processing of required big or small fillet, circumference and end face on the axle.

The purpose of this utility model is achieved in that and adopts a kind of combination roller stand, and this rolls frame, and fixedly roller stand and a rotation roller stand constitute by one.Roller that is used for big fillet of roll extrusion and periphery with the parallel installation of workpiece axis fixedly is housed on the roller stand, fixedly an end of roller stand is fixed on the lathe saddle, the other end forms a fork groove, the rotation roller stand is housed in the groove, and fixedly roller stand and rotation roller stand link into an integrated entity with bearing pin.Have its axis becomes the α angle with the workpiece axis multidiameter on the rotation roller stand, roller is housed on the multidiameter, require to be provided with roundlet angle rolling surface, end face rolling surface and the clearance plane that becomes the β angle with the end face rolling surface according to workpiece on the roller.Angle between end face rolling surface and the roller axis equals 90 °-α.Radially have groove near multidiameter one side along bearing pin at the rotation roller stand, the handle mechanism that control rotation roller stand rotates is housed in the groove, slewing area by on the fixing roller stand with the rotation roller stand on groove be complementary two at a distance of angle γ=80 °～100 ° groove determines.During rolling and processing, earlier different roll extrusion positions according to workpiece, control crank mechanism makes a roller in two rollers enter the roll extrusion SBR, handles tool holder then, carries out rolling and processing.Two rollers are according to the alternation of processing needs, until reaching last rolling and processing requirement.

It is single that the utility model has overcome existing rolling device purposes, and the deficiency of narrow application range need not to change roller stand, just can realize that the roll extrusion of axle class outer round surface is handled, and comprises the roll extrusion of big or small fillet, circumference and end face is handled.The utility model is simple in structure, and handiness has alleviated labour intensity, has improved working (machining) efficiency, can use on various large, medium and small lathes, and roll extrusion workpiece roughness can reach Ra0.8～Ra0.5.

Below in conjunction with accompanying drawing the utility model is further specified.

Fig. 1 is the utility model schematic diagram.

Fig. 2 is an A-A generalized section among the utility model Fig. 1.

In Fig. 1 and Fig. 2, bearing pin 18 is roller stand 12 and be loaded on fixedly that the interior rotation roller stand 1 of roller stand 12 fork grooves links together fixedly.Roller 14 is by axle 13, bearing 16, bearing 9 and fill up 15, gland 17 is assembled in fixedly on the roller stand 12.Roller 7 is assembled on the multidiameter of rotation roller stand 1 by bearing 8, bearing 9, gland 10, screw 11, lid 5 and screw 6.Angle α=45 between the installation axis of this roller and workpiece 19 axis ° are on the roller 7 and rotation roller stand 1 and fixedly all be respectively equipped with removal hole on the roller stand 12, usefulness during in order to maintenance.Radially have a groove near multidiameter one side along bearing pin 18 at rotation roller stand 1, handle 3 is housed in the groove, pin 2 connects together handle 3 and rotation roller stand 1, plays fixation.Handle 3 can rotate around bearing pin 18, its slewing area by on the fixing roller stand 12 with rotation roller stand 1 on groove be complementary two groove a and the b at a distance of angle γ=90 ° definite.Have spring eye in the groove of rotation roller stand 1, compression spring 4 is housed in the hole, in order to guarantee handle 3 bossings fixed-site in groove a and b.The appearance profile of two rollers is decided according to workpiece.Workpiece in the present embodiment is a motorcycle axle.This axletree has R60, R30, R8 and end face and periphery needs roll extrusion.Therefore, the appearance profile of roller 14 forms by covering than the arc surface of long radius and the face of cylinder, is used for roll extrusion R60, R30 and periphery.The appearance profile of roller 7 is covered by less fillet rolling face 7c, end face rolling surface 7a, clearance plane 7b and transition circle cambered surface and plane and forms, and is used for roll extrusion R8 fillet and end face.7 angle α=45 of end face rolling surface 7a and roller 7 axis °.Angle β=5 between end face rolling surface 7a and the clearance plane 7b ° are to guarantee end face rolling surface 7a roll extrusion end face successfully.Must guarantee rounding off between each rolling surface.When roller 7 and roller 14 were positioned at a side simultaneously, roller 7 was in readiness for operation, and roller 14 is in the inoperative SBR.When 14 work of needs roller, then control crank 3, and roller 7 is forwarded to idle position.Carry out rolling and processing on engine lathe, when the bossing of handle 3 bottoms was arranged in groove a, roller 7 was in readiness for operation, handle tool holder this moment, during radial and axial feeding, with roundlet angle rolling surface 7c roll extrusion fillet R8, during axial feed, then use end face rolling surface 7a roll extrusion end face.When roller 7 after hours, pull handle 3, overcome the pressure of spring 4, handle 3 is pulled position d(Fig. 2 by position C), the bossing of handle 3 leaves groove a, at this moment, forward handle 3 to groove b place around bearing pin 18 clockwise, roller 7 also forwards position f with swivel mount 1 to from position e, handle 3 boss is put in the groove b, and by the bounce of spring 4 it is close in groove b.At this moment, roller 14 is in the operating position, handles tool holder, roll extrusion R60, R30 fillet and periphery successively.When roller 14 after hours, just finished a working cycles basically.If when needing roller 7 work again, then control crank mechanism turns back to readiness for operation along former road with roller 7.

Claims

1, a kind of class excircle surface rolling device, it comprises the fixedly roller stand 12 and a roller 14 that is contained in its axis and the parallel installation of workpiece 19 axis on the described fixedly roller stand 12 that are fastened on the lathe saddle, it is characterized in that:

(1) in the fork groove of described fixedly roller stand 12, is connected with a rotation roller stand 1 with bearing pin 18;

(2) on described rotation roller stand 1, has its axis becomes the α angle with workpiece 19 axis multidiameter, roller 7 is housed on the multidiameter, roller 7 is provided with roundlet angle rolling surface 7c, end face rolling surface 7a and the clearance plane 7b that becomes the β angle with end face rolling surface 7a, and the angle between end face rolling surface 7a and roller 7 axis equals 90 °-α.

(3) radially have groove near multidiameter one side along bearing pin 18 at described rotation roller stand 12, the handle 3 that the described rotation roller stand of control 1 rotates is housed in the groove, its slewing area by two that are complementary with the groove of described rotation roller stand 1 on the fixing roller stand 12 at a distance of angle γ=80 °～100 ° groove a and b is definite.

2, axle according to claim 1 class excircle surface rolling device is characterized in that rotating the multidiameter axis of roller stand 1 and angle α=45 between workpiece 19 axis °.

3, axle according to claim 1 class excircle surface rolling device is characterized in that angle β=5 ° between end face rolling surface 7a and the clearance plane 7b.