US2539205A - Peening machine - Google Patents

Description

S. S. RICKLEY PEENING MACHINE Jan. 23, 1951 mw um mw ww mw 4 Sheets-Sheet l y, ffw, ma

f INVENTOR Samue/S. Rick/@y MVN Filed NOV. 12, 1947 Jan. 23, 1951 s. s. RICKLEY 2,539,205

PEENING MACHINE Filed Nav. 12, 1947 4 sheets-sheet s INVENTOR Yamae/ S. Rick/ey Jan. 23, 1951 s, RlCKLEY 2,539,205

PEENING MACHINE Filed Nov. 12, 1947 4 Sheets-Sheet 4 l l "1 l J5 I 40 20 4o 59 59 d y 11j q1 58 ai 58 4J "Tmnnuuu'nnnm u Ill Il INVENTOR Sam ue/ S, Rick/ey Patented Jan. 23, `1951 PEENING MACHINE Samuel S. Rickley, Canonsburg, Pa., assgnor t Superior Steel Corporation, Pittsburgh, Pa., a corporation of Virginia Application November 12, 1947, Serial No. 785,467

4 Claims.

This invention relates to a peening machine and particularly to a machine for peening together billet components or the like. The invention has to do particularly with the means for controlling and advancing the work to the peening station.

The invention is applicable inter alia to the peening together of billet components such as backing and facing components in the making of bimetallic billets. For example, there may be provided a backing component having flanges and facing components adapted to lie against the backing component between flanges at opposite faces thereof, the flanges being adapted to be peened over to hold the facing components in place against the backing component. Bimetallic billets thus formed are rolled into bimetallic strip which has a wide variety of uses.

The present invention is in the nature of an improvement over the invention of Patent No. 2,450,987. In that application there is disclosed a peening machine including peening rolls for peening together billet components or the like and means for controlling and moving the work through the machine. While the machine of the Potter application is entirely satisfactory I have found that superior results from the standpoint of economy and uniformity of product can be obtained by somewhat differently handling and moving the work prior to its entry into the peening rolls.

The peening machine is of considerable size and involves a substantial outlay. I provide opposed sets of supporting and guiding rollers for supporting andvguiding work being fed to the peening rolls. which sets of rollers may be adjustably positioned in different spaced apart relations to accommodate billet components of different Widths, thereby avoiding the necessity of substituting an entirely new roller table for each billet width. I shape the supporting and guiding rollers differently than heretofore to provide for more accurately positioning the billet components relatively to each other. I provide guide means for guiding billet components as they enter the roller table. I provide improved means for impelling billet components including a ram for positively pushing them forward to the guide table and pinch rolls for advancing them on the guide table, The pinch rolls are mounted for resilient movement toward and away from the Work and are normally pressed into contact with the work. They are contoured to most effectively engage the work despite irregularities in the work.,

Ill

Other details, objects and advantages of the invention will become apparent as the following description of a present preferred embodiment thereof proceeds.

In the accompanying drawings I have shown a present preferred embodiment of the invention, in which Figure 1 is a plan view with portions cut away of a peening machine;

Figure 2 is an elevational view with portions cut away of the peening machine shown in Figure 1;

Figure 3 is a detail plan view to enlarged scale of a portion of the peening machine shown in Figures 1 and 2;

Figure 4 is an elevational view of the mechanism shown in Figure 3;

Figure 5 is a fragmentary plan view to enlarged scale of a portion of the peening machine shown in Figures 1 and 2;

Figure 6 is a fragmentary elevational view to enlarged scale showing the means for adjustably positioning the work supporting and guiding rollers;

Figure 7 is a view partly in elevation and partly in vertical cross-section of the structure shown in Figure 6;

Figure 8 is a detailtransverse cross-sectional viewto enlarged scale showing billet components being advanced toward the peening rolls; and

Figure 9 is a view partly in elevation and partly in vertical transverse cross-section to scale somewhat smaller than Figure 8 showing the pinch rolls for advancing billet components on the roller table.

Referring now more particularly to the drawings, the specific form of peening machine shown is for peening together flanged backing components and flat facing components to form bimetallic billets. In the drawings the backing components are designated generally by reference numeral 2 and the facing components are designated generally by reference numeral 3. Each backing component consists of a generally rectangular body portion with flanges projecting beyond its principal faces at its opposed longitudinal edges as shown in Figure 8 wherein the backing component 2 appears in transverse cross-section. The facing components are flat rectangular metal plates shown in plan in Figure 1 and in transverse cross-section in Figure 8. The back'- ing and facing components may be of any desired metals, the backing components normally being of carbon steel and the facing componentsI normally being of metal other than carbon steel.

as, for example, stainless steel, copper, gilding metal, cupro-nickel, etc.

In forming a bimetallic billet a backing member 2 and two opposed facing members 3 are advanced through peening rolls which peen over the flanges of the backing member against the edges of the facing members as explained in Patent No.'2,45o,9e7. The pemmg fons of the present invention may be the same as the Potter peening rolls, being designated generally by reference numeral They are not shown in detail because the present invention does not relate to the conformation of the peening rolls but to the means for controlling and feeding the billet components to the feeding rolls. The peening rolls are mounted in roll housings and may be positively driven or turned by contact of the work therewith. The peening rolls are shaped to engage the flanges of the back-ing member and peen the same down over the edges of :the facing members.

The backing members 2 are preferably rolled sections which are delivered to the peening machine on a roller table G. The rollers 'I of the Vtablet may be .driven or such rollers may be .idlers and the backing members may be pushed thereover by hand or otherwise. Preferably the rollers il are driven by means not shown.

The backing components 2 are delivered on :the roller table on edge until they strike a stop 8, They are then moved laterally by walking beams 9 and are delivered from the rollers 1 Aover guides E onto idler rollers Ii forming a. roller table on which the backing members are adapted to be advanced to the right, viewing Figures l and 2. When the backing components are disposed upon the idler rollers Il they are resting von their sides, i. e., upon flanges at opposite edges of -a principal face.

There is provided a ram I2 carried by a piston-within a cylinder i3, the piston being adapted to be flu-id operated to move the ram axially of the cylinder. The ram is for pushing toward the right, viewing Figures l and 2, backing components -2 lying upon the idler rollers lI. The ram has an important advantage in insuring positive movement of the backing components even when they are relatively short and contact only .two or three of the rollers II. When driven rollers are employed they do not have maximum effectiveness on short billet compopents which engage only two or three rollers at a time, and they are relatively ineffective when the `billet components are being delivered from the end of the conveyer.

From the rollers II the backing components pass over intermediate rollers lll and onto a roller table designated generally by reference numeral I5 and which comprises opposed sets of supporting and guiding rollers It for supporting and guiding the billet components being fed t0 the peening rolls'. The roller table I5 is mounted upon an under frame I? carrying transverse guides I8. Mounted upon the guides I8 and adapted for transverse sliding movement thereon are two roller supports i9, one for each of the two opposed sets of rollers lo. There are provided screws v251 spaced apart longitudinally of the roller table I5, each of the screws 2B hav- 119g oppositely threaded ends and a circular plate 27| at'the center thereof. 'The circular plate 2| of each of the screws 2d is adapted to turn within guides 22 carried by theframe Il so that the screw is maintained against axial displacement. The oppositely threaded ends of each screw thread through the respective supports I9. Thus it will be seen that when the screws 2U are turned simultaneously in one direction the supports I9 move toward each other while when the screws are turned in the opposite direction the supports move away from each other. The effect of this is to position the opposed sets of supporting and guiding rollers I6 in different spaced apart relations.

Each of the supports I is adapted to be bolted t0 the guides IS by bolts 23 when in any adjusted position. When it is desired to relatively move the supports i9 by turning the screws 2l) the bolts 23 are loosened; and when the opposed sets of rollers it have attain,d their desired new adjusted position the bolts 23 are tightened to hold them in that position. Thus the roller table consisting of the supporting and guiding rollers I5 is adapted to support and guide to the peening rolls billet components or other work pieces of different widths, eliminating the necessity of substituting a different roller table or different scts of supporting and guiding rollers for the handling of ywork pieces 0f different widths.

Each of the rollers -ll'a has stepped portions for engaging the bottom and side faces of each of two superimposed components as vshovvn in Figure 8. Each roller has la portion of relatively small diameter 25, a portion of intermediate diameter 2 5 and a portion of relatively large diameter 2t, A facing component 3 is adapted to rest upon the portions 2.4 and to be guided by the shoulders between the portions 2li and 25. A backing component 2 is adapted to rest upon the portions 25 and to be guided by the shoulders between the portions 25 and 26 as illustrated in Figure 8. This insures prper relative vpositioning of the components vand renders easier the initial positioning on the rollers I6 of the lower facing component 3 which may be placed on the rollers by hand. Since 4it is guided Alaterally by the shoulders between the portions 2li and 2 5 of the .rollers l5 it may .easily be properly positioned by hand without .the necessityy of being carefully centered to provide for subsequent introduction thereover of the corresponding backing component 2..

Before a backing component is advanced to the right from the rollers I i a facing component is taken from skids El ,and placed by hand upon the .portions 24 of the rollers it of the roller table I5. Thereafter the backing component which is to b e peened to that facing component `is advanced from the rollers l I to a position atop the lower facing component as shown in Figure. The componen-ts may be properly positioned endwise by a stop 28 movable to and from operative position by hydraulic fluid operating .in a cylinder 2.9.. When the lower component 3 is placed upon the rollers .It its right hand end, viewing Figures 1 and 2, may be disposed against the stop 2.8. When the corresponding `backing component is advanced into cooperative relationship with that facing component it too is advanced until it strikes the stop 23.

Means are provided for insuring proper entry of the backing components onto the rollers i6. Such means comprise pivoted side vguides 3f? adapted to swingV about verticall pivots 3! in a horizontal plane substantially eoinciding with the plane occupied by the backing component as it is advanced through the machine. Each of the pivoted side guides Si) carries a lug '32 containing an arcuate slot 33 through which passes a bolt 3 for rbolting the lug to the frame and thereby holding the corresponding guide in fixed position. The guides 3d are adapted -to 'be 'adjusted in conformity with the adjustment of Athe opposed sets of rollers I6 to insure proper entry of each backing component onto the rollers. The guides 30 are designed so that in any normal adjusted position they converge in the direction of advance of the work and their relatively adjacent extremities 35 will be spaced apart a distance very slightly greater than the width of backing components being handled, the respective portions 35 being equidistant from the central axis of the machine. Likewise, the opposed sets of rollers I6 will be adjusted so that the shoulders between the portions 25 and23 of the rollers of the opposed sets will be spaced apart a distance slightly greater than the widths of the backing components being handled. Thus the inclined pivoted side guides 3f) will insure proper entry of each backing component upon the roller table I5. A

The backing components 2 are advanced along the roller table l into engagement with the stop 28 by pinch rolls 3E. Several sets of interchangeable pinch rolls 33 may be kept on hand, the rolls of the respective sets. being of different diameters, rolls of relatively great diameter being used for billets of relatively small width and vice-versa, In Figures 3 and 4 pinch rolls 36 of relatively small diameter are shown in solid lines and pinch rolls 38 of relatively great diameter are indicated by chain lines. Each of the pinch rolls is keyed to a generally vertical shaft 3l which is mounted in bearings 38. Each of the lower bearings 38 is mounted toturn through a limited angle in the plane of the paper, viewing Figure 9, within a bearing box 39. Each of the upper bearings 38 is mounted within a bearing box 48 and is resiliently urged inwardly or toward the center line of the machine by spring means not shown. Thus the pinch rolls 33 are resiliently urged toward each other and hence toward the work. The pinch rolls 36 are of conical contour so that they will have their maximum effectiveness when their shafts are tilted slightly outwardly. The resilient pressing of the pinch rolls against the Work insures rm engagement of the rolls with the Work despite irregularities in the work. Preferably when the shafts 3'! are in their innermost or vertical positions the opposed face portions of the pinch rolls 3S are somewhat closer together than the transverse dimensions of the backing components being handled so that when a backing component enters the bite of the pinch rolls 33 `it will spread those rolls vslightly apart and at the same time turn them angularly so that the roll faces lie substantially flush against the edges of the work.

Keyed to each shaft 31 is a gear 4I. The two gears 4i mesh with each other. -They insure synchronous operation of the pinch rolls 33. The gears 4| are disposed close to the bearing boxes 39 so that they partake of much less amplitude of angular movement than the pinch rolls 36 when a backing component 2 enters the bite of the pinch rolls. The teeth of the gears 4l are shaped to allow for limited relative angular movement of the shafts 31 while maintaining operative mesh.

One of the shafts 3'! has fixed thereto a sprocket 42 adapted to be driven by a sprocket chain not shown. The pinch rolls 36.are thus driven through the sprocket 42 and the gears 4I There is provided a pusher 43 pivotally mounted at 44 upon a carriage 45 having wheels f 46 riding in tracks 41, the carriage being pushed along the tracks by a piston rod 48 carried by a piston in a cylinder 49. The pusher 43 is normally maintained in upright position by a coil spring 44 but is adapted to be pushed down out of the path of a backing member when the backing member is advanced toward the right over the pusher. After the backing member has passed the pusher the spring 44 returns it to vertical position. The pusher is used for pushing the assembled backing and facing members into the bite of the peening rolls 4. The pusher may be the same as the pusher disclosed in the Potter application and does not per se constitute the present invention.

The operation of the peening machine will now be described. At the beginning of each cycle of operations a facing member 3 is placed by hand upon the rollers l5 against the stop 28, which is then up in its operative position, and simultaneously a backing member is delivered by the walking beams 9 onto the rollers Il. The facing member 3 rests upon the portions 24 of the rollers I6 as shown in Figure 8. The ram i2 is operated to push the backing member toward the right. The side guides 3i) guide the backing member so that it properly enters the rollers I6, the lower flanges riding upon the portions 25 and the backing member being guided by the shoulders between the portions 25: and the portion 26 of the rollers.

As the backing member passes over the pusher "i3 it moves the pusher down against the action of the spring 44 into inoperative position as above described. rIhe front end of the backing member is forced into the bite of the pinch rolls 36, slightly spreading those rolls in the manner above described. rIhe pinch rolls positively move the backing member forward until it engages the stop 28. When the rear end of the backing member has passed over the pusher 43 the spring 44 returns the pusher i3 to its vertical position. After the backing member has come to rest against the stop 28 the upper facing member 3 (see Figure 8) is placed upon the top of the backing member between the opposed upper anges thereof. It also is positioned with its right hand end, viewing Figures 1 and 2, against the stop 28. Thereupon the stop 28 is withdrawn downwardly to inoperative position and the pusher 43 is operated to push the assembled backing member 2 and upper and lower facing members 3 into the bite of the peening rolls 4 which as above explained peen over the flanges of the backing member onto the edges of the facing members to form a bimetallic billet. If the peening rolls 4 are driven, as is preferred, the pusher 43 need advance the assembled components only until they are in draft with the peening rolls, whereafter the peening rolls both advance the components and perform the peening function. The peened billet is delivered from the peening rolls upon rollers 58.

While I have shown and described a present preferred embodiment of the invention it is to be distinctly understood that the invention is not limited thereto but may be otherwise variously embodied within the scope of the following claims.

I claim:

1. In a peening machine having peening rolls for peening together billet components or the like, opposed sets of supporting and guiding rollers for supporting and guiding components being fed to the peening rolls, each of opposed rollers having stepped portions for engaging the bottom and sideA faces of each of two superim posed` components.

`2. In a peening machine having peening rolls for peening together Abillet components or the like, .opposed sets of supporting and guiding rollers for supporting and guiding components being fed to the peening rolls, each of opposed rollers having corresponding portions of relatively small diameter for supporting a Component, corresponding portions of larger diameter for supporting a second component in superimposedv relation to the first mentioned component and corresponding portions of still larger diameter for engaging the side faces of `the second mentioned component.

v3. In a peening Imachine having peening rolls for peening together billet components or the like, opposed sets of supporting and guiding rollers for supporting and guiding components being fed to the peening rolls, each of opposed rollers having corresponding portions-of relatively small diameter for supporting a component, corresponding portions of larger diameter for supporting a second component in superimposed relation to the ist mentioned component and corresponding portions of still larger diame ter for engaging the side faces of the second mentioned component and opposed guide means converging in the direction of feed disposed to guide Work into proper cooperative relationship with the rollers, the relatively adjacent portions of the guide means being spaced apart a distance approximating the distance between the roller portions for engaging the side faces of the second mentioned component.

4. In a peening machine having peening rolls for peening together billet components or the like, opposed sets of supporting and guiding rollers for supporting and.- guiding components being fed to the peening rolls, each of the opposed rollers havingY corresponding portions of vrelatively small .diameter for supporting a component and corresponding portions of larger diameter for supporting a second component in superimposed rela-tion to the rst mentioned component, and means for guiding the second mentioned component onto the second mentioncd portions of the rollers.

SAMUEL S. RICKLEY.

REFERENCES CITED The following references are of record in the le of this patent:

UNITED STATES PATENTS Number Name Date 287,659 Gifford Oct. 30, 1933 k290,077 Lewis Dec. 11, 1883 421,039 Aiken Feb. 11, 1890 480,200 Maddock Aug. 2, 1892 v672,872 Dreyer Apr. 23, 1901 723,834 Cooper May 3l, 1903 753,070 Haywood Feb. 23, 19021 891,126 Worth June 16, 1908 1,354,976 Jones Oct. 5, 1920 1,711,740 McCann May 7, 1929 1,762,427 Stiefel June 10, 1930 1,955,072 Jordan Apr. 17, 1934 1,955,783 Yoder Apr. 24, 1934 1,966,913 Evans Apr. 9, 1935 2,064,820 Campbell Dec. 22, 1936 2,071,682 Bucoicone Feb. 23, 1937 2,114,302 Harter Apr. 19, 1938 2,187,753 Ruden Jan. 23, 1940 2,365,322 Ashworth Dec. 19, 1944 2,450,987 Potter Oct. 12, 1948 FOREIGN PATENTS Number Country Date 637,621 Germany Oct. 31, 1936

Images