US2114979A - Apparatus for cold rolling axle journals - Google Patents

Description

April 19, 1938. o. J. HORGER ET AL 2,114,979

APPARATUS FOR COLD ROLLING AXLE JOURNALS Original Filed Jan. 4, 1957 THE/E 'HTTOENEYSQ Patented Apr. 19, 1938 Oscar J. Horger and Harry R. Neifert, Canton, Ohio, as'sighors to The Timken Roller Bearing Company, Canton, Ohio, a corporation of Ohio Original application January 4, 1937, Serial No. 118,961. Divided and this application June 16, 1937, Serial N0. 148,430

4 Claims.

Our invention relates to an apparatus for burnishing or cold rolling the journal portions of axles and shafts. The principal object of the invention is to adapt such apparatus for work on journals of difierent diameters. Another ob-' ject is to prevent canting or skewing of such apparatus with respect to the axis of the work piece. The invention consists in the parts and in the combinations and arrangements of parts hereinafter described and claimed.

In the accompanying drawing wherein like reference numerals indicate like parts wherever they occur,

Fig. 1 is a plan view of an apparatus embodying our invention together with a portion of the journal of an axle or shaft;

Fig. 2 is a side elevation of said device with the axle or work piece shown in cross section;

Fig. 3 is partly an end elevation and partly a vertical cross section on the line 3-3 of Fig. 2;

Fig. 4 is a vertical cross section on the line 4-4 of Fig. 2;

Fig. 5 is a perspective view of the guide block which guides and steadies the apparatus; and

Fig. 6 is a perspective view of the block which supports the screw for adjustably supporting the steady block shown in Fig. 5.

The subject matter claimed herein is divided out of our copending application Serial No. 118,961 filed January 4, 1937, for patent for Apparatus for cold rolling axle journals, to which reference is hereby made for a specific description of portions of the apparatus not claimed herein but claimed in said application. 35 The frame of the apparatus illustrated in the accompanying drawing comprises a base member consisting of two heavy side plates I firmly secured together by bolts 2 but spaced apart by suitable spacing members 3 far enough to accommodate Work rollers 4 between them. The top sides of these plates have a recess 5 therein large enough to receive the journal 6 of the axle or other workpiece. Two work rolls 4 are located between said side plates at the respective lower corners thereof and are rotatably mounted thereon.

Firmly secured to the upper portion of one end of the base member is an upwardly extending support 1 which, in the construction illustrated;

has a third work roller 9 rotatably mounted thereon equidistant from the two Work rollers 4 in the base member. The apparatus also includes means collectively indicated by the reference numeral ID, for transmitting pressure through the throat latch and its work roller to the journal or other workpiece, all as more fully described.

in our said copending application.

Rigidly fixed to the base member and projecting from one end thereof is a mounting bar ll of suitable size to fit slidably in the tool post of a lathe. Rigidly fixed to the other end of the base member and projecting therefrom in the opposite direction is a steady or guiding bar l2 which is in substantial alinement with the mounting bar II and in such position that their common longitudinal axis extends through or close to the axis of the journal or other workpiece mounted on the lathe centers.

The guiding bar I2 is flat-sided or of other non-circular section and is supported by a vertically adjustable steady block I3 which has a wide vertical groove l4 in each end. The grooved ends of the steady block straddle or fit slidably around vertical posts or supports l5 which are secured to the carriage [6 of the lathe, as by cap screws II extending through foot flanges [8 on the posts into the lathe carriage. The steady block [3 has a deep groove I9 which extends across its upper face in position to receive the guiding bar l2 which has a sliding fit therein but is prevented by the walls thereof from tilting.

The steady block I3 is supported on the upper end of a vertical screw 20 which is threaded through a vertical hole 2! in a block 22 which has grooved ends which straddle the vertical supporting posts l5. Each of the vertical posts has a series of perforations 23 therein and through one pair of these perforations extend cap screws 24 which engage threaded holes 25 provided therefor in the grooved ends of said supporting block and secure it firmly. By turning the vertical screw 20, the steady block 13 may be raised or lowered for relatively fine adjustment of the height of the steady block; and for coarser adjustment, the supporting block 22 itself 7 can be fixed at different heights by shifting the cap screws to another pair of perforations.

'In practice, the mounting bar of our apparatus is inserted in the tool post of the lathe and the steady bar diametrically opposite said mounting bar lies in the deep groove of the steady block and with the journal in the recess 5 of the base member. As both the mounting bar and the steady bar have sliding fits, the base member,

together with all parts secured thereto, is free to float in a plane crosswise of the journal which is being burnished and thereby equalize the pressure of the three work rollers thereon; but the steady rest keeps such base member from canting from its position in a plane at right angles to the axis of the lathe centers. 7

What we claim is: I

1. An attachment for lathes which comprises a frame and work rollers mounted therein, said attachment comprising a mounting bar adapted tofit slidably in the tool post of a lathe, a second bar diametrically opposite said mounting bar, and a device attachable to said lathe for slidably supporting said second bar and for preventing tilting of the apparatus transversely of its sliding movement, said second bar resting on said supporting devices.

2. An attachmentfor lathes which comprises a frame and work rollers mounted therein, said attachment comprising a mounting bar adapted to fit slidably in the tool post of a lathe, a second bar diametrically opposite said mounting bar, and a guiding and supporting device for said second bar comprising spaced apart members attachable to the lathe carriage on opposite sides of said second bar, a block slidable between said members and having a groove therein adapted to slidably support said second bar, and a support for said block adjustably supported by said members.

3. An attachment for lathes which comprises a frame and work rollers mounted therein, said attachment comprising a mounting bar adapted to fit slidably in the tool post of alathe, a second bar diametrically opposite said mounting bar, and a guiding and supporting device for said second bar comprising spaced apart members attachable to the lathe carriage on opposite sides of said second bar, a block slidable between said members and having a groove therein adapted to slidably support said second bar, and a support for said block adjustably supported by said members, said support comprising a second block slidable between said members below said first mentioned block, means for securing said second block against movement, and a screw threaded through said secondblock and supporting said first mentioned block.

4. A lathe attachment comprising a framework having a mounting bar projecting outwardly from one side of said framework in one direction and adapted to fit slidably in the tool post of a lathe, a steady bar projecting outwardly from the opposite side of said frameworks in the opposite direction in alinement with said mounting bar, a Work tool on said framework, and means for supporting said steady bar and preventing canting thereof from a plane at right angles to the axis of the lathe, said steady bar resting on said supporting means.

OSCAR J. HORGER. HARRY R. NEIFERT.

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