FORMING ROLL FOR ROLLING CYLINDRICAL METAL BODIES FROM CYLINDRICAL ROD STOCK, AND A METHOD OF MAKING THE SAME

TITLE OF THE INVENTION IMPROVED FORMING ROLL FOR ROLLING CYLINDRICAL METAL BODIES FROM CYLINDRICAL ROD STOCK, AND A METHOD OF MAKING THE SAME An improved forming roll for forming cylindrical metal slugs from cylindrical rod stock is characterised in that the roll has a helical groove defined by a rib the radial height of which and the axial dimension of which increase along the length of the roll, the groove between successive helices of the rib having a cylindrical base the axial length of which is so dimensioned that the volume of metal enclosed by the groove, in use, is substantially constant. There is also described a novel method for making such a forming roll.

Deep roller profiling of cylindrical metal blanks with- - out internal cracking

Deep roller profiling of cylindrical metal blanks without internal cracking.. Is effected in the convergent throat formed between two rollers rotating in same direction. The roll is maintained constant during profiling and excess material is extruded into an escape gap between the rollers to form a flash on the work. Steel, copper and aluminium may be profiled, preferably hot. Heavy deformation and deep profiling is effected to form coarse screw threads, helically toothed articles, worm gears, headed stud blank for screw or bolt, rollers and ball for roller bearing. A series of articles joined together by webs which can be severed may also be formed.

Procédé et machine de profilage de pièces annulaires

Machine being used for manufacture of the balls of roller bearings

Improvements in the manufacture of balls for ball bearings and the like

... 161,880. Adams, A. A. July 5, 1920. Rolling balls.-In a machine for the manufacture of steel balls for ball bearings &c., a heated or cold rod 24, placed in the opening of a tapering recess formed between a die-block 9 and a revolv. ing roller 15, is severed or partially severed by the edges 14, 19 between grooves in the die-block and in the roller, and is moulded into balls by the grooves. The lower part 21 of the die-block, which may be detachable, as shown, is made concentric with the roller. Supplementary grooves, to receive te excess metal, may be formed in the grooves in the die-block and roller, the ridges thus formed on the balls being afterwards removed. ' ...

Procedure and device for forming rings out of circular blanks

Method of fabricating a sintered oilless bearing

A method for fabricating a sintered oilless bearing using a correcting rod having a projection correcting portion and a groove forming portion having outer diameters respectively identical to inner diameters of projections and grooves to be formed into the oilless bearing. An upper punch is inserted into the upper portion of the correcting rod for pressing the sintered oilless bearing to allow the inner periphery of the sintered oilless bearing to closely contact the groove forming portion and, simultaneously, fit into the projection forming portion. A lower punch is ascended from the lower portion of the correcting rod for separating the sintered oilless bearing from the correcting rod and to allow a portion of the inner periphery of the sintered oilless bearing inserted into the projection forming portion to match with the outer periphery of the projection correcting portion while being compressed, thereby exactly matching the concentricities of the projections and grooves of the sintered ...

VORRICHTUNG ZUM PROFILIEREN VON MASSIVEN WERKSTUEKKEN.

Apparatus for Rolling Annular Workpieces.

... 1,179,953. Rolling. ROTARY PROFILE ANSTALT. 4 Jan., 1967 [10 Jan., 1966; 7 Feb., 1966; 16 Feb., 1966; 5 May, 1966], No. 40498/69. Divided out of 1,179,952. Heading B3M. The Specification relates to the embodiments of 1,179,952 in which the annular workpiece threaded on a mandrel is rolled between a C-frame and a member which defines a throat with the frame for the passage of the mandrel. The claims relate to the C-frame embodiments.

Profiling of Annular Workpieces.

... 1,179,952. Rolling annular workpieces. ROTARY PROFILES ANSTALT. 4 Jan., 1967 [4 Jan., 1966; 14 Jan., 1966 (2); 27 Jan., 1966; 12 April, 1966], No. 580/67. Heading B3M. Apparatus for profiling an annular workpiece 12 comprises two juxtaposed rollers 10, 11 and a mandrel 13 whose ends are in rolling contact with one of the rollers 11 and in which an annular recess 18 is provided which cooperates with the roller 10 to confine a segment of the workpiece to impress the desired profile on its surfaces. The workpiece is restrained from axial spread by the side walls 19, 20 of the recess. The profiling recess may be provided in the roller 10 and the mandrel shaped to co-operate with the recess. In one embodiment, Fig. 3 (not shown), the ends of the mandrel roll on two back-up rolls (11), (17). A control ring may be applied around the workpiece and the profiling space may have an escape gap for the excess metal during the rolling. In an alternative embodiment, Fig. 12 (not shown), the axial spread ...

Procedure and device for the Hertellen of a solid body of revolution with formed Umfläche

Machine for Profiling Annular Workpieces by Rolling

Verfahren zur Herstellung eines Blechkäfigs und danach hergestellter Blechkäfig

Verfahren zur Herstellung eines Blechkäfigs für Rollenlager durch a) spanloses Formen einer Hülse mit radial überstehenden, axial verlaufenden Rippen b) zerspanendes Einarbeiten von Taschen für Rollen zwischen benachbarten Rippen, gekennzeichnet durch Umformen einer scheibenförmigen Blechronde durch Drückwalzen in Schritt a) und fensterförmiges Ausstanzen der Taschen in Schritt b).

Machine for Profiling Annular Workpieces by Rolling

... 1,192,839. Rolling rings. ROTARY PROFILE ANSTALT. 5 April, 1968 [19 April, 1967], No. 16522/68. Heading B3M. A machine for rolling annular workpieces includes at least two rolls defining an axially extending convergent throat, a workpiece which loosely surrounds a mandrel being rolled as it advances along the throat. The mandrel rolls by its ends on one roll, and urges the workpiece against either another roll or a control ring containing the workpiece. In a three-roll arrangement, Fig. 1, a workpiece 13 is contained within a control ring 14 and surrounds a mandrel 15. Rotation of rolls 10 and 11 causes feeding of the workpiece axially of the rolls due to the cooperation of the ring 14 within helical grooves in the rolls. The roll 12 is plain and can be idle or driven. A head 18 on one end of the mandrel engages the grooves to feed the mandrel with the workpiece. The rolls can have axes which converge slightly or have increasing diameters along the throat length. Alternatively the roll ...

Device for forming circular workpieces

Process and machine of shaping of annular parts

Rolling machine

RING BODY FORMING DEVICE

PURPOSE: To efficiently improve the roundness of a work to be formed by providing a pair of backup means, in which plural rollers are supported on a moving side to support a forming roller and are coaxially arranged as being brought in rolling contact with both the outer peripheral face of about center part of a work and the sliding contact face of a roller under the prescribed pressure. CONSTITUTION: When a work W is formed between a forming roller 8 and mandrel 13, the contacting faces 12a, 12b of a support roller 12 are brought into contact with the regulating face of the mandrel 13, improving the durability of the mandrel 13. Among plural backup rollers of a pair of backup means 29, the center backup roller is brought into contact with the outer peripheral face of about center part of the work W, further backup rollers 28, 28 of both sides are brought into contact with the sliding contact faces 12a, 12b of the support roller 12, the positioning is surely executed by the backup roller ...

Vorrichtung zum Profilieren von massiven Werkstuecken

PROFILING OF WORKPIECES

Automatic punch press for producing O series retainer

Process and apparatus of shaping of full cylindrical parts by lanminage

Machine for Profiling Annular Workpieces by Rolling

FABRICATION OF ARTICLES BY ROLLING

Self-lubricating sinter bearing manufacture

Bearing manufacture comprises use of a correcting rod (10). The external circumference of the correcting rod is arranged so that its external diameter is equal to the internal diameter of the projections (15) and recesses (16) of the sinter bearing (14). The sinter bearing is placed on the correcting rod and subjected to a pressing process to correct the projections and recesses by means of the correcting rod. The precise concentricity of the projections and recesses is thus ensured.

FORMING ROLL FOR ROLLING CYLINDRICAL METAL BODIES FROM CYLINDRICAL ROD STOCK AND A METHOD OF MAKING THE SAME

STAMP ROLLING AND ITS MANUFACTORING PROCESS

Improvements brought to the means of manufacture of the balls of roller bearings

Improvements in process and apparatus for forming bearing rolls

... 198,836. Stephens, A. J., (Timken Roller Bearing Co.). March 28, 1922. Turning.-In a process for making bearing rolls from bar stock, the work, after being rough turned by a tool 4 is finish turned by means of an adjustable formed, tool 10 mounted on a transverse slide 9 and co-operating with a steadying roller 7.

Machine for Profiling Solid Workpieces

1,198,164. Rolling. ROTARY PROFILE ANSTALT. 10 April, 1968 [19 April, 1967], No. 17212/68. Heading B3M. A machine for rolling balls or profiled articles from solid bars includes a central rotatable roll which has a helical scroll on its surface and which is surrounded by an annular structure having a complementary scrolled surface, the roll and structure defining a throat through which the bars are drawn. For forming balls from rods 52 the central roll 50 is located within a fixed housing 51, or alternatively within an annular roll. Doublestart scrolls of opposite hand are provided on the adjacent roll or housing surfaces. The rods are progressively deformed to produce halls during planetary motion of the rods. In an alternative form, Fig. 4, a series of radially disposed disc-like rolls 64 form the annular structure, the rolls being driven synchronously with their peripheries in register and forming a continuous scroll. In either of the above cases the annular structure can be rotated in the opposite direction to the centra] roll, thereby obviating rotation of the rods 52 or 62 about the central roll.

Profiling of solid articles by rolling

... 1,132,360. Rolling. ROTARY PROFILES (JERSEY) Ltd. 29 Dec., 1966 [3 Jan., 1966; 25 April, 1966], No. 58135/66. Heading B3M. In a method of profiling a solid cylindrical blank by rolling it in a convergent throat defined by two rolls or platens, the blank is fed, at right angles to the axis of the blank, into the throat, the throat restricting axial spread of the blank and being provided with a gap into which excess material from the blank is extruded. In rolling a helical gear for example, Fig. 4, a blank 56 is formed at each end with removable flashes 59, the slight excess of material being necessary to ensure filling of the roll gap. Where a number of articles, such as balls, Fig. 8, are simultaneously rolled from a cylindrical blank a small filament 78 is left between adjacent blanks. In an alternative form, three pairs of rolls 84, 86, and 88, Fig. 9, are moved transversely to initially roll a common blank 82, and are then moved axially into contact with each other to complete the rolling ...

Improvements in machine for turning bearing balls

... 378,301. Turning balls. VUILLE, G., 58, East Main Street, Plainville, Connecticut, U.S.A. Dec. 14, 1931, No. 34616. [Class 83 (iii).] Tools.-Balls are shaped while travelling along a path bounded by two helically grooved conveyer rolls and two confronting cutters to which they are fed by a pipe. Roughly formed blanks roll from a hopper 2 by gravity and through a feed tube 3 from which they pass to the helical grooves 9, of which the first thread 10 is slightly deeper than the remainder, and are fed axially of the rolls while acted on by cutters 11, 12. The rolls are driven through gearing in the same direction from a main drive pulley 77, which may also actuate a pump 65 for lubricant upon operation of a clutch 75. Lubricant is fed to a channel 68 and, through perforations 69, on to the work, the base 18 of the machine being of trough form to collect the liquid and return it to the reservoir for the pump. The left-hand roll is journalled in bearings 21 resiliently pressed towards the other ...

FORMING ROLL FOR ROLLING CYLINDRICAL METAL BODIES FROM CYLINDRICAL ROD STOCK, AND A METHOD OF MAKING THE SAME

VORRICHTUNG ZUM PROFILIEREN VON RINGFOERMIGEN WERKSTUECKEN DURCH ROLLEN.

Rolling manufacturing of complex shape of the annular element of the device

MACHINE AND METHOD FOR ROLLING CONICAL WORKPIECE

A machine and method for rolling a conical workpiece is disclosed wherein relatively rotatable die means rotate a workpiece therebetween in planetary motion. A shoulder on one die urges the workpiece in one axial direction and a shoulder on the other die acts on the workpiece in an opposite axial direction to form roll thereon a crowned surface on the large end of the workpiece. The tilting or skewing of the workpiece relative to the dies helps establish this crowned end on the workpiece.

Vorrichtung zum Profilieren von ringfoermigen Werkstuecken durch Rollen

Wearable steel ball die cleaning device

Making device and method for sintering oil-containing bearing

Groove pressing tool for steel ball equipment

The invention relates to a groove pressing tool, in particular to a groove pressing tool for steel ball equipment. The invention aims to solve the problems of long auxiliary time and danger of batch scrapping when steel balls which are expensive in material, multiple in variety and small in quantity are processed in the prior art. The device comprises a steel ball circulation channel (1), a connecting lug (2) and a ball outlet groove (3), the steel ball circulation channel (1) is a channel with a cavity in the length direction, one end of the steel ball circulation channel (1) is fixedly connected with the connecting lug (2), and the connecting lug (2) is communicated with the plate groove ball outlet side of steel ball equipment and used for bearing and limiting steel balls rolled out in a plate groove. The other end of the steel ball circulation channel (1) is fixedly connected with a ball outlet groove (3), and the ball outlet groove (3) is located over the plate groove ball inlet side ...

ROLLING DIE AND METHOD OF MAKING SAME

Verfahren und Einrichtung zum Herstellen fuer den Einbau in Waelzlager bestimmter Kegelrollen

Wälzlagerring

Ein Wälzlagerring (1) weist eine Laufbahn (2) für Wälzkörper und einen der Laufbahn (2) benachbarten Bord (4) auf, sowie einen zwischen dem Bord (4) und der Laufbahn (2) gebildeten Einstich (3), welcher als mechanisch verfestigte, Druckeigenspannungen aufweisende Zone ausgebildet ist.

Method of fabricating a sintered oilless bearing

A method for fabricating a sintered oilless bearing using a correcting rod having a projection correcting portion and a groove forming portion having outer diameters respectively identical to inner diameters of projections and grooves to be formed into the oilless bearing. An upper punch is inserted into the upper portion of the correcting rod for pressing the sintered oilless bearing to allow the inner periphery of the sintered oilless bearing to closely contact the groove forming portion and, simultaneously, fit into the projection forming portion. A lower punch is ascended from the lower portion of the correcting rod for separating the sintered oilless bearing from the correcting rod and to allow a portion of the inner periphery of the sintered oilless bearing inserted into the projection forming portion to match with the outer periphery of the projection correcting portion while being compressed, thereby exactly matching the concentricities of the projections and grooves of the sintered ...

Method for producing cage for taper bearings

A metal cage for taper bearings is pressed from a blank (12,17) which is clamped to the bottom of a former and which is rolled onto the former. The metal flows into grooves in the former to create the ribs (9) of the cage. The bearing slots are stamped out of the conical shell by a separate process. The ribs are shaped to align the taper bearings (7).

Automatic material charging system for hot skew rolling of blanks of bearing steel balls

Manufacturing method for improving bearing steel ball surface layer performance

Three-roll rolling backlash device for integral self-lubricated oscillating bearing

MANUFACTURE OF TAPERED BAR

PURPOSE: To improve the yield of material, and to improve the productivity, by composing the rolling rolls with two large diameter rolling rolls and a small diameter rolling roll, and by causing said small diameter rolling roll to make the rolling contact with a backup roll. CONSTITUTION: A bar type material 10 is supported freely rotatably around its axis 10a and movable in its axial direction. A couple of large diameter rolling rolls 11, 12 and a small diameter rolling roll 13 are arranged around the outer surface of the material 10 taking some distance between mutual outer surfaces; hereupon, the rolling rolls 11, 12, 13 are respectively supported freely rotatably around their own axes 11a, 12a, 13a all parallel to the axis 10a of the material 10, and besides, freely touchably and detachably from the material 10. The outer surface of rolling rolls 11, 12, 13 is respectively provided with conical surfaces 11b, 12b, 13b in which each large diameter side is placed on the front side in the ...

Verfahren und Vorrichtung zum Herstellen von Kugeln, z. B. fuer Kugellager

A lifting of the bearing steel ball manufacturing method of performance

A METHOD AND A MACHINE FOR MANUFACTURE OF ROLLERS

The invention refers to a method and a machine for manufacture of rollers, and particularly rollers for use in roller bearings, incorporating in combination: advancing a material strand (2) into a rolling gap provided in the axial direction between at least two aligned, rotatable rolls (5, 6, 6'), at least one of which is driven to rotate, allowing the material strand (2) to be shaped into a consecutive series of roller blanks (8) by passing through the rolling gap, which is defined by a substantial helical profile pattern (7) in each one of the rolls (5, 6, 6’) parting off individual roller blanks (10) from the continuous series of roller blanks (8) after the passage through the rolling gap, and passing the individual roller blanks to subsequent finishing treatment.

PLASTIC WORKING MACHINE

PURPOSE: To work plastically an intricately shaped product having different sections and diameters with one time of working operation by forming rugged grooves on a pair of spherical rolls, and oscillating the rolls while rotating the same in the same direction so that a blank material is grasped under pressure in point contact therewith. CONSTITUTION: Supporting blocks 14, 15 and spherical rolls 2, 3 are oscillated and grooves 10, 11 formed on the rolls 2, 3 are inclined toward the feed side of a blank material. The rolls 2, 3 are then rotated at the same speed to the same direction around revolving shafts. The blank material is inserted in this state into between the rolls 2 and 3 and a rack 33 is gradually retreated. Then the rolls 2, 3 oscillate while rolling to grasp the blank material from both sides and grasp the blank material under pressure by the contact parts of the grooves 10, 11 while rotating the material, thereby feeding the blank material and working plastically the material ...

Verfahren und Vorrichtung zur Herstellung von Gegenstaenden durch Rollen

Integral self-lubricated oscillating bearing rolling forming process and rolling equipment

ROLO LAMINADOR APERFEICOADO PARA LAMINAR CORPOS METALICOS CILINDRICOS A PARTIR DE VERGALHAO CILINDRICO BRUTO,E METODO PARA A SUA OBTENCAO

Ball bearing surface finishing machine - relieves frame of axial loading, has accessible grinding and lapping plates

Axial thrust and reaction, on ball workpieces between a grinder's fixed and rotating plates, are internally contained. The machine frame bears mainly the machine weight. A suspended fixed plate is axially withdrawable, for plates' changing access. A double machine has back-to-back rotating plates between outer fixed plates. A gear toothed (116) driven wheel (100), in frame (106) bearings (104), carries the rotating surfacing plate (102). The fixed surfacing (110) and carrier (108) plates hang from a tracked (112) runner. An axial cylinder (122) and ram (126) apply thrust at a thrust bearing (120) and rod (128) mounted detachable plate (130).

METHOD OF FORMING STEEL BALL BLANKS, IN PARTICULAR FOR ROLLING BEARINGS

In a method of forming steel ball blanks (4) , in particular for rolling bearings, a starting steel cylinder (1) is plastically deformed; the plastic deformation is firstly performed in radial direction, for obtaining an essentially cylindrical blank (Ia) provided with an intermediate axial portion (βa) having reduced cross-section with respect to that of the starting cylinder (1) , and then in axial direction by pressing to obtain a ball blank (4) to be directly subjected to hardening.

Steel-ball-roughing machine

Near-net composite rolling forming method for inner ring of tapered roller bearing

METHOD OF FORMING STEEL BALL BLANKS, IN PARTICULAR FOR ROLLING BEARINGS

In a method of forming steel ball blanks (4), in particular for rolling bearings, a starting steel cylinder (1) is plastically deformed; the plastic deformation is firstly performed in radial direction, for obtaining an essentially cylindrical blank (1a) provided with an intermediate axial portion (6a) having reduced cross-section with respect to that of the starting cylinder (1), and then in axial direction by pressing to obtain a ball blank (4) to be directly subjected to hardening.

ROLLING DIE AND METHOD OF MAKING SAME

UNDER NECK WORKING METHOD OF BALL STUD HEAD

PURPOSE: To reduce an equipment cost and work cost with simple equipment and to improve a working accuracy by forming a cylindrical part of the under neck of the head of a form rolling ball stud work in a recessed peripheral shape with the form rolling of a roll die. CONSTITUTION: A forged ball stud work is supported freely rotatably by a form rolling device and a form rolling work is started with pressing a pair of roll dies 14, 15 as shown by an arrow mark to the cylindrical part 3a of the under neck of a head with rotating reversely each other and with moving to the side of the ball stud work. The plastic deformation of the cylindrical part 3a of the under neck of the head is performed with the rotation of the ball stud work as well by the pressing of the roll die 14 thereof. The form rolling work shape of the cylindrical part 3a of the underneck of the head coinciding with the peripheral ends 14a, 15a of the rolling dies 14, 15 is made out. When this working condition is obtd. the feeding ...

Vorrichtung und Verfahren zur Herstellung eines selbstschmierenden Sinterlagers

FORMWALZE UND VERFAHREN ZU IHRER HERSTELLUNG

DEVICE COMPRISING A SLEEVE FIXING BODY AND A FORM ROLLING BALL ASSEMBLY FOR MANUFACTURING A HYDRODYNAMIC PRESSURE BEARING

PURPOSE: A device for manufacturing a hydrodynamic pressure bearing is provided to form dynamic pressure grooves on inner and outer circumferential surfaces of a sleeve in a roll forming manner simply and promptly, form a dynamic pressure groove capable of controlling accurate dimensions and reduce manufacturing cost. CONSTITUTION: In a device(100) for manufacturing a hydrodynamic pressure bearing by processing dynamic pressure grooves on a sleeve(S) disposed between a rotor and a stator, the device for manufacturing the hydrodynamic pressure bearing comprises: a sleeve fixing body(110) moved forward and backward in a length direction of the sleeve while rotationally driving a sleeve fixed to one end of the sleeve fixing body in forward and reverse directions; and a form rolling ball assembly(120) for forming outer circumferential dynamic pressure grooves(G1) on the outer circumferential surface of the sleeve coming into contact with the roll forming balls by mounting plural roll forming ...

Bearing forging grinding and expanding machine

Forming roll for rolling cylindrical bodies from cylindrical rod stock, and a method of making the same

An improved forming roll for forming cylindrical metal slugs from cylindrical rod stock is characterized in that the roll has a helical groove defined by a rib the radial height of which and the axial dimension of which increase along the length of the roll, the groove between successive helices of the rib having a cylindrical base the axial length of which is so dimensioned that the volume of metal enclosed by the groove, in use, is substantially constant. There is also described a novel method for making such a forming roll.

Three-roll rolling backlash device for integral self-lubricated oscillating bearing

MACHINE FOR PROFILING SOLID WORKPIECES

Stufenlos verstellbares Toroidgetriebe

Stufenlos verstellbares Toroidgetriebe mit einer Antriebswelle (1), einer mit der Antriebswelle drehbaren, antriebsseitigen Scheibe (2), einer konzentrisch zur antriebsseitigen Scheibe angeordneten, abtriebsseitigen Scheibe (4), die drehbar relativ zur antriebsseitigen Scheibe (2) gelagert ist, eine Einrichtung zum Abführen der Leis tung, durch die die Drehung der abtriebsseitigen Scheibe (4) ableitbar ist, einer Vielzahl von Auflagern (6), die an relativ zu einer Mittelachse der antriebsseitigen und abtriebsseitigen Scheiben 2, 4 verdrehten Positionen angeordnet sind und an diesen Positionen schwenkbar sind, einer Vielzahl von Antriebskörpern (8), die drehbar an an den Auflagern (6) gelagerten Exzenterwellen (7; 28, 29) gelagert sind und zwischen der antriebsseitigen und der abtriebsseitigen Scheibe 2, 4 gehalten sind und einem zwischen der Außenseite eines jeden Antriebsrollkörpers (8) und der Innenseite eines jeden Auflagers (6) angeordneten Wälzlagers (32), durch das die Drehung der ...

Equipment for manufacturing by rolling a complex shape annular element

Equipment for manufacturing by rolling a complex shape annular element (1) includes an axial-symmetrically shaped forming tool (5), rotating about a first axis and cooperating with an axial-symmetrically shaped mandrel (10) revolving about a second axis parallel to the first and having a predetermined longitudinal profile; and respective receiving rolls (14,15) carried revolving by a support adapted to support a perpendicular thrust (S) exerted in use on the forming tool, cooperating with a first and a second radial shoulder surface (17,18) of the mandrel between which the working surface (11) is delimited; the first and the second shoulder surface (17,18) of the mandrel have, at opposite ends (21,22) of the longitudinal profile of the working surface, a first and a second diameter (D1,D2), the first smaller than the second, the first shoulder surface (17) being arranged immediately adjacent to a first end (20) of the mandrel.

Roller hot-rolling mill and porous roll

A CYLINDER SHROUD AND METHOD TO PRODUCE IT

Powder metallurgy production of spherical articles, such as bearing elements

Low-cost articles characterized by a surface of revolution, such as truncated spherical balls, e.g., plain spherical bearing balls, are provided made by the powder metal compaction and sintering of blanks followed, in the case of ball elements, by densification of the outer spherical surface by mechanical working, such as by roll-forming, the balls so produced being characterized by improved sphericity and dimensional tolerance and improved wear resistance combined with optimum resistance to corrosion. The spherical surface of the ball is substantially free of pores, has a work hardened structure and has a density at and adjacent the surface of at least about 95% of the theoretical density of the metal, the density substantially below the surface being less and ranging to as low as at least about 70% of theoretical density.

Method of forming rollers for roller bearings

FORFARANDE OCH APPARAT FOR VALSNING AV CYLINDRISKA METALLKROPPAR FRAN CYLINDRISKT STANGEMNE

MACHINE AND METHOD FOR ROLLING CONICAL WORKPIECE

ROLLING FORMING APPARATUS OF WHEEL BODY

PROBLEM TO BE SOLVED: To smooth rolling forming of a wheel body so as to obtain a good precision wheel body. SOLUTION: In a rolling apparatus 1 of a wheel body, which consists of a mandrel 2, in which a wheel body to be worked is fitted and a forming face to form its inner face is arranged, a forming roller 3 provided with the forming face to form an outer peripheral face of the wheel body fitted to the mandrel 2 and a pressing rollers 4 to press the mandrel 2 to a forming roller 3 side, and in which the wheel body is held by the mandrel 2 and the forming roller 3, by pressing the mandrel 2 by a pressure roller 4 to the forming roller 3 side, a wheel body stock is rolled, the pressure roller 4 is provided with outer wheel 8b, 8c through bearings 7b, 7c, 10b, 10c. COPYRIGHT: (C)2001,JPO ...

Tool for forging wind power bearing block blank

Sheet metal cage for roller bearings and method for producing sheet metal cage

A process for producing a sheet metal cage for roller bearings involves using a press roll to form a disk-shaped circular sheet metal blank into a tubular element having radially inwardly projecting and axially extending ribs, and stamping window-shaped pockets into the tubular element between adjoining ribs to produce a cage of a rolling bearing for receiving rolls in the window-shaped cutouts. The sheet metal cage produced by the method possesses a conically rolled outer surface and side rings arranged at opposite ends. The cage includes ridges extending between the side rings and window-shaped pockets between adjacent pairs of ridges for receiving tapered rolls. The cage also includes ribs extending inwardly from each of the ridges, with the ribs possessing tapering side surfaces.

Forming roll for rolling cylindrical bodies from cylindrical rod stock, and a method of making the same

An improved forming roll for forming cylindrical metal slugs from cylindrical rod stock is characterized in that the roll has a helical groove defined by a rib the radial height of which and the axial dimension of which increase along the length of the roll, the groove between successive helices of the rib having a cylindrical base the axial length of which is so dimensioned that the volume of metal enclosed by the groove, in use, is substantially constant.

Procedure and device for the Hertellen of a solid body of revolution with formed Umfläche

Powder metallurgy production of spherical articles, such as bearing elements

Low-cost articles characterized by a surface of revolution, such as truncated spherical balls, e.g., plain spherical bearing balls, are provided made by the powder metal compaction and sintering of blanks followed, in the case of ball elements, by densification of the outer spherical surface by mechanical working, such as by roll-forming, the balls so produced being characterized by improved sphericity and dimensional tolerance and improved wear resistance combined with optimum resistance to corrosion. The spherical surface of the ball is substantially free of pores, has a work hardened structure and has a density at and adjacent the surface of at least about 95% of the theoretical density of the metal, the density substantially below the surface being less and ranging to as low as at least about 70% of theoretical density.

Integral self-lubricated oscillating bearing rolling forming process and rolling equipment

METHOD OF PRODUCING SPHERICAL OILLCONTAINED METAL

Manufacturing method for improving performance of bearing steel ball surface layer

Bearing roller cold rolling forming machine

PROCESS FOR PRODUCING A ROTATIONALLY SYMMETRIC HOLLOW PART AND HOLLOW PART PRODUCED THEREBY

A process for producing a rotationally symmetric hollow part, especially a shaft, including: providing a bar-shaped solid material involving the steps of heating the solid material substantially to forging temperature; cross wedge rolling of the solid material so as to cause weakening in the core zone of the solid material; and inserting at least one rotating mandrel, driven at a predetermined velocity, substantially along the central axis of the cross-wedge-rolled solid material, thus creating a through-hole and to a rotationally symmetric hollow part, especially a shaft. 1. Process for producing a rotationally symmetric hollow part , comprising the steps of:providing a bar-shaped solid material;heating the solid material substantially to forging temperature;cross wedge rolling of the solid material in a manner causing weakening in a core zone of the solid material; andinserting at least one rotating mandrel driven at a predetermined velocity substantially along a central axis of the cross-wedge-rolled solid material in a manner creating a through-hole.2. Process according to claim 1 , wherein said at least one rotating mandrel comprises two rotating mandrels claim 1 , each of which inserted into a respective one of opposite ends of the bar-shaped solid material.3. Process according to claim 2 , wherein the mandrels are inserted simultaneously.4. Process according to claim 2 , wherein the mandrels are inserted asynchronously.5. Cross-wedge-rolled rotationally symmetric hollow part in the form of one of a gear shaft claim 1 , cam shaft claim 1 , drive shaft claim 1 , output shaft claim 1 , starter clutch shaft claim 1 , hollow shaft and a preform for other forming parts produced by the process of .6. Cross-wedge-rolled rotationally symmetric hollow part according to claim 5 , wherein the part has a diameter of approximately 30 to 200 mm.7. Cross-wedge-rolled rotationally symmetric hollow part according to claim 5 , wherein the part has a diameter of approximately 60 ...

Ring Rolling Device

A ring rolling device includes a drive roller and a rotatable revolving drum, in which five mandrels are rotatably mounted. Ring blanks can be mounted around the mandrels. By rotating the revolver drum, the mandrels move towards and away from the drive roller. The revolver drum is arranged in relation to the drive roller in such a way, that by rotating the revolver drum a decreasing roll gap is formed between a mandrel approaching the drive roller and the drive roller, in which roll gap a ring blank mounted around the mandrel is rolled during the rotating of the revolver drum. The revolver drum has four rotatably mounted support rollers, said support rollers supporting the mandrel in the direction of the rotational axis of the revolving drum, such that, during the rolling process, the mandrel is located between the support rollers and the press element. 1. A ring rolling device for enlarging a ring blank , comprising a press element , a rotatably mounted mandrel around which the ring blank can be mounted , and a rotatable revolver drum , in which the mandrel is rotatably mounted , wherein the mandrel can be moved toward and away from the press element by rotating the revolver drum , wherein the revolver drum is disposed relative to the press element such that , by rotating the revolver drum , a decreasing roll gap is formed between the mandrel and the press element , in which the ring blank is rolled during rotation of the revolver drum , wherein the revolver drum comprises at least two rotatably mounted support rollers for the rotatable mounting of the mandrel , which support the mandrel in the direction of the rotation axis of the revolver drum , so that the mandrel is situated between the support rollers and the press element during the rolling process.2. The ring rolling device according to claim 1 , wherein the revolver drum comprises two spaced claim 1 , disc-like drum parts claim 1 , which are torsionally rigidly connected to one another and in each of which ...

METHOD FOR PRODUCING A GAS OR LIQUID TANK

The invention relates to a method for shaping a workpiece having a drum-type peripheral wall, on the inner face of which an inner profile featuring longitudinal ribs is formed by feeding at least one profiling roll to said inner face. According to the invention, at least one rotatably mounted profiling roll is fed to an inner face of the peripheral wall of the workpiece, and said at least one profiling roll rotates relative to the inner face of the peripheral wall such that the inner profile is formed in the inner face in a non-cutting manner. 112.-. (canceled)13. A method for producing a gas or liquid tank with a drum-shaped circumferential wall by means of forming , on an internal side of the circumferential wall an internal profile with axial longitudinal ribs is formed in a non-cutting manner,', 'wherein the axial longitudinal ribs of the internal profile are provided for the reinforcement of the hollow body wall of the gas or liquid tank,, 'in which'} for the forming of the longitudinal ribs at least one rotatably supported profiling roller is fed to the internal side of the circumferential wall of the gas or liquid tank,', 'in that to each internal profiling roller an external counter-pressure roller is assigned which is fed radially opposite the profiling roller to an external side of the gas or liquid tank, and', 'the at least one profiling roller circulates relative to the internal side of the circumferential wall, wherein the internal profile is formed in a non-cutting manner., 'characterized in that'}14. The method according to claim 13 ,characterized in thatthe at least one profiling roller is fed axially and/or radially.15. The method according to claim 13 ,characterized in thatat least two profiling rollers are fed, the positions and feed movements of which are coordinated so that a uniform internal profile is formed on the internal side.16. The method according to claim 13 ,characterized in thata profiling is exclusively carried out on the internal ...

Method for cross-wedge rolling poppet valves

The invention relates to a method for producing poppet valves, the method including: cross-wedge rolling a preform ( 2 ), which has at least one disk portion ( 4 ) and a shaft portion, to produce a valve blank ( 10 ), wherein a diameter of the shaft portion ( 6 ) is reduced substantially to a shaft diameter of a shaft ( 16 ), and additionally a length of the shaft portion ( 6 ) is increased substantially to a length of the shaft ( 16 ) by means of a rolling-out process.

Ring Rolling Device with Axially Fixed Rolling Bearings

A ring rolling device for enlarging a ring blank includes a press element, a rotatably mounted mandrel and an advancing arrangement in which the mandrel is rotatably mounted with a first end part in a first rolling bearing and with a second end part in a second rolling bearing. The ring blank can be mounted around the mandrel. By means of the advancing arrangement, the mandrel is movable towards the press element and away from the latter again, wherein a roll gap which decreases in size, and in which the ring blank is rolled, is formed between the mandrel and the press element. The two rolling bearings are arranged axially fixed in the advancing arrangement, and the mandrel is mounted so as to be axially movable relative to these two rolling bearings. 1. A ring rolling device for enlarging a ring blank , comprising: a press element , with a rotatably mounted mandrel comprising a first end part , a second end part and a middle part therebetween , around which the ring blank can be mounted , and an advancing arrangement in which the mandrel is rotatably mounted with its first end part in a first rolling bearing and with its second end part in a second rolling bearing , such that the middle part of the mandrel lies free for the mounting of the ring blank , and by means of which advancing arrangement the mandrel is movable towards the press element and away from the latter again , wherein a roll gap which decreases in size , and in which the ring blank is rolled , is formed between the mandrel and the press element , wherein the second rolling bearing is arranged axially fixed in the advancing arrangement , and the mandrel is mounted so as to be axially movable relative to the second rolling bearing , such that the second end part of the mandrel can be pulled out of the second rolling bearing or pushed into the latter , wherein the first rolling bearing is also arranged axially fixed in the advancing arrangement , and the mandrel is mounted so as to be axially movable ...

RING-ROLLING MACHINE AND METHOD FOR LIFTING AND LOWERING THE MANDREL ROLL OF A RING-ROLLING MACHINE

In a ring-rolling machine having a mandrel roll and a related radial roll, the mandrel roll can be handled in operationally reliable and structurally simple manner if an axial bearing of the mandrel roll is opened by way of an opening drive that does not rotate along with the mandrel roll and/or is closed by inserting the mandrel roll into the axial bearing. 1. A ring-rolling machine comprising a mandrel roll mounted in an upper and a lower mandrel roll bearing , and a related radial roll , whereinthe upper mandrel roll bearing is configured as a fixed bearing,the fixed bearing has both a radial bearing and an axial bearing,the axial bearing encompasses a mandrel roll head of the mandrel roll and supports it at the bottom, and the axial bearing is configured so that it can be opened by way of opening means, andthe upper mandrel roll bearing is disposed on a bearing body that is configured to be lifted and lowered, which body is guided by way of an operating guide that vertically guides the bearing body in a vertical operating region, and by way of a discharge guide that guides the bearing body in a vertical discharge region.2. The ring-rolling machine according to claim 1 , wherein the operating guide is configured to be narrower than the discharge guide.3. The ring-rolling machine according to claim 1 , wherein the guide lengths of the operating guide and of the discharge guide overlap.4. The ring-rolling machine according to claim 1 , wherein guide bodies are disposed on the bearing body both for the operating guide and for the discharge guide.5. The ring-rolling machine according to claim 4 , wherein the guide bodies of the operating guide overlap horizontally with the guide bodies of the discharge guide.6. The ring-rolling machine according to claim 1 , wherein the operating guide lies in a vertical operating guide plane and the discharge guide lies in a discharge guide area.7. The ring-rolling machine according to claim 6 , wherein the operating guide plane and ...

RING-ROLLING MACHINE AND METHOD FOR LIFTING AND LOWERING THE MANDREL ROLL OF A RING-ROLLING MACHINE

In a ring-rolling machine having a mandrel roll and a related radial roll, the mandrel roll can be handled in operationally reliable and structurally simple manner if an axial bearing of the mandrel roll is opened by way of an opening drive that does not rotate along with the mandrel roll and/or is closed by inserting the mandrel roll into the axial bearing. 1. A ring-rolling machine comprising:a mandrel roll mounted in an upper and a lower mandrel roll bearing, anda radial roll related to the mandrel roll, the upper mandrel roll bearing is configured as a fixed bearing,', 'the fixed bearing has both a radial bearing and an axial bearing,', 'the axial bearing encompasses a mandrel roll head of the mandrel roll and supports the mandrel roll at a bottom, and', 'the axial bearing is configured so that it can be opened by way of an opening element having locking elements that prevent opening if the mandrel roll is not supported, or the opening element has blocking elements that prevent closing if no mandrel roll is present in a region of the axial bearing., 'wherein'}2. The ring-rolling machine according to claim 1 , wherein the locking elements or the blocking elements have at least one latch contact point on which the mandrel roll comes to rest and which is connected to interact with a locking latch or with a blocking latch.3. The ring-rolling machine according to claim 1 , wherein the opening element comprises an opening drive that does not rotate along with the mandrel roll claim 1 , said opening drive being configured to act on a drive plate that opens the axial bearing and rotates along with the mandrel roll.4. A ring-rolling machine comprising a mandrel roll mounted in an upper and a lower mandrel roll bearing claim 1 , and a related radial roll claim 1 , whereinthe upper mandrel roll bearing is configured as a fixed bearing,the fixed bearing has both a radial bearing and an axial bearing,the axial bearing encompasses a mandrel roll head of the mandrel roll and ...

METHOD FOR MANUFACTURING RING-SHAPED MEMBER AND MANUFACTURING APPARATUS FOR SAME

Construction is achieved that, together with preventing the occurrence of damage to a mandrel, is able to improve precision of the shape of a ring-shaped member after processing. A mandrel includes a pair of support shaft sections that are provided so as to be separated in the axial direction and so as to be concentric with each other, and a rolling shaft section that is concentrically provided in the axial direction between the pair of support shaft sections. One of the support shaft sections is provided in a state in which displacement in the axial direction with respect to the rolling shaft section is regulated. The other support shaft section is provided in a state in which displacement in a direction going away from the rolling shaft section is possible when a pressing force is applied in that direction. 1. A manufacturing apparatus for a ring-shaped member comprising:a mandrel;an outer-diameter constraining die; andan excess material release means;the manufacturing apparatus used for forming the ring-shaped member by performing a rolling process on an inner-circumferential surface and an outer-circumferential surface of an annular-shaped metal blank; a pair of support shaft sections; and', 'a rolling shaft section;', 'the mandrel rotatably supported around a center axis of the mandrel,', 'the pair of support shaft sections having a larger diameter than the rolling shaft section, and provided so as to be separated from each other and concentric with each other in an axial direction of the mandrel; and', 'the rolling shaft section provided between the pair of support shaft sections so as to be concentric with the pair of support shaft sections, and having a first rolling surface for performing the rolling process on the inner-circumferential surface of the metal blank formed around an outer circumferential surface of the rolling shaft;, 'the mandrel comprising comprising a center axis, and a second rolling surface for performing the rolling process on the outer- ...

Fluid pressure cylinder and method of manufacturing the cylinder

A fluid pressure cylinder extends and contracts in accordance with supply/discharge of fluid pressure to/from a cylinder tube is provided. On inner side of both end portions of the cylinder tube in an axial direction, at least one small-diameter portion having a diameter smaller than those of the end portions in the axial direction is formed by a spinning process.

Rolling Processing Device and Rolling Processing Method

A rolling processing device and a rolling processing method are provided to be capable of producing annular members by rolling-forming three or more cylindrical members at the same time while reducing the possibility of breakage of a mandrel. For this purpose, a rolling processing device includes a forming roll, a support roll, and a mandrel. Plural workpieces are arranged on the mandrel alternately in the radial direction of the mandrel. The rolling processing method includes an arranging process for arranging the workpieces on the mandrel and a rolling process. 1. A rolling processing device comprising:a forming roll configured to abut with an outer peripheral surface of a cylindrical member;a support roll configured to abut with the outer peripheral surface of the cylindrical member; anda mandrel having an outer peripheral surface configured to abut with an inner peripheral surface of the cylindrical member,wherein rotary shafts of the forming roll, the support roll, and the mandrel are arranged to be capable of getting closer to one another,wherein at least three of the cylindrical members are arranged on the outer peripheral surface of the mandrel alternately in a radial direction of the mandrel,wherein a plurality of protrusions, each having a disc shape, are provided on the forming roll and the support roll depending on the number of the cylindrical members, andwherein outer peripheral surfaces of the plurality of protrusions of at least one of the forming roll or the support roll are pressed against the outer peripheral surface of the cylindrical member.2. The rolling processing device according to claim 1 , wherein at least a first engaging groove is provided on the outer peripheral surface of the mandrel claim 1 , the first engaging groove having a diameter decreasing in an axial direction of the mandrel claim 1 , and being configured to abut the inner peripheral surfaces of the three or more of the cylindrical members alternately in the radial direction ...

Method and machine for fabricating rotation bodies by plastic deformation

Method of producing stepped-section articles with non-round section portions

Изобретение относитс  к обработке металлов давлением и может быть использовано при поперечно-клиновой прокатке ступенчатых изделий. Цель изобретени  - повышение качества изделий путем предотвращени  искажений профил  участка некруглого поперечного сечени . Исходную заготовку нагревают, формообразуют ступени издели  наклонными гран ми клиновых инструментов 2 и 3 при поперечно-клиновой прокатке и одновременно профилируют участок 6 некруглого поперечного сечени  с вытеснением избыточного металла заготовки наклонными гран ми 4 и 5 клиновых инструментов 2 и 3 в осевом направлении. Такие операции предотвращают смещение избытка металла в тангенциальном направлении и искажение профил  участка с некруглым поперечным сечением, что обеспечивает повышение качества изделий и увеличение выхода годной продукции. 11 ил. The invention relates to the processing of metals by pressure and can be used in cross wedge rolling of stepped articles. The purpose of the invention is to improve the quality of products by preventing distortion of the profile of a region with a non-circular cross section. The initial billet is heated, the product steps are formed by inclined edges of wedge tools 2 and 3 during cross wedge rolling, and at the same time a section 6 of noncircular cross section is profiled with displacement of the excess metal of the preform by axial directions 4 and 5 of wedge tools 2 and 3. Such operations prevent the displacement of excess metal in the tangential direction and the distortion of the profile of the site with a non-circular cross-section, which provides an increase in the quality of products and an increase in the yield of useful products. 11 il.

Method and machine for fabricating rotation bodies by plastic deformation

내용 없음. No content.

Method of cross wedge rolling

クランクシヤフトのロ−リング加工装置

(57)【要約】本公報は電子出願前の出願データであるた め要約のデータは記録されません。

Groove manufacturing die

요약 없음 No summary

Method of producing shafts with eccentric stages

The milling method for preventing bearing collar path from folding

本发明涉及一种防止轴承套圈滚道折叠的轧制方法，包括以下步骤：步骤1、压力机制得环形锻件毛坯；步骤2、扩孔机包括主轧辊、芯轴和导向辊；主轧辊、芯轴和导向辊在轧辊车或磨床上进行加工；主轧辊为辊身带轧槽、辊身宽为65mm±0.15mm的轧辊；芯轴为辊身腰线处凸出的轧辊；导向辊为辊身为圆柱体的轧辊；步骤3、将环形锻件毛坯套在芯轴上，主轧辊旋转的同时压向芯轴；步骤4、芯轴紧贴环形锻件毛坯的内壁旋转，沿径向直线运动使环形锻件毛坯的直径扩大，主轧辊在环形锻件毛坯的外径辗轧出滚道；导向辊有两个，两个导向辊的直筒外径在辗轧过程中紧贴环形锻件毛坯的外表面，随环形锻件毛坯的外径扩大的同时旋转，将环形锻件毛坯限位于扩孔机上。主轧辊的轧槽突出部比工艺要求宽3mm。本发明具有低耗、高效、优质的技术特点。

Rolling dies for forming

없음. none.

Cross taper rolling mill

FIELD: plastic metal working, namely, production of stepped shafts and axles by cross taper rolling. SUBSTANCE: mill for cross taper rolling includes housing with rolling stand mounted onto it. Tool plates with supporting surface are mounted on two mutually opposite inner surfaces of stand in guides. Plates support taper tools. At least one plate is mounted with possibility of motion. Its supporting surface is provided with fluidal apparatus. Rolling stand is provided with means for prestressing it. EFFECT: improved design. 10 cl, 1 tbl, 12 dwg обо с ПЧ ГЭ (19) РОССИЙСКОЕ АГЕНТСТВО ПО ПАТЕНТАМ И ТОВАРНЫМ ЗНАКАМ ВИ "” 2115 500 ' (51) МК° В 24Н 1/18 13) СЛ 12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ РОССИЙСКОЙ ФЕДЕРАЦИИ (21), (22) Заявка: 95120939/02, 09.12.1995 (46) Дата публикации: 20.07.1998 (56) Ссылки: 1. ЗЧ, авторское свидетельство М 978992, В 21Н 1/18, 1982. 2. ММО, заявка М 92102319, В 21 Н 1/18, 1992. (71) Заявитель: Садко Владимир Иванович (ВУ) (72) Изобретатель: Садко Владимир Иванович (ВУ) (73) Патентообладатель: Садко Владимир Иванович (ВУ) (54) СТАН ДЛЯ ПОПЕРЕЧНО-КЛИНОВОЙ ПРОКАТКИ (57) Реферат: Изобретение относится к обработке металлов давлением и предназначено для получения валов и осей ступенчатого профиля методом поперечно-клиновой прокатки. Стан для поперечно-клиновой прокатки содержит станину и установленную на ней прокатную клеть. На двух противоположных внутренних поверхностях клети на направляющих смонтированы инструментальные плиты с опорными поверхностями, которые несут клиновые инструменты. По меньшей мере одна из плит установлена с возможностью перемещения, а ее опорная поверхность выполнена в виде струйного аппарата. Прокатная клеть снабжена средством для создания ее предварительного напряженного состояния. 9 з.п. ф-лы, 1 табл. 12 ил. 15 27 Е 27 25 22 29 5, И 24 2 5 и69 # © - я >| 7 „2 $ р 287 ТЕ И-А И 1 `) 7 2 бд п } ‚ г ; ру на в | \ 25 27 72 Е 25 272% 19 м 27 2115500 С1 КО обо с ПЧ ГЭ КУЗЗАМ АСЕМСУ ГОК РАТЕМТ$ АМО ТКАОЕМАКК$ (19) 12) АВЗТКАСТ ОЕ ...

Method and apparatus for producing bodies of revolution having at least one groove

내용 없음. No content.

Ring rolling from metal blanks

Method of forging with burnishing and device to this end

Изобретения относятся к обработке металлов давлением и могут быть использованы при штамповке с обкаткой. Заготовку размещают между двумя вальцами, каждый из которых имеет спрофилированную рабочую поверхность, соответствующую форме готовой детали. Производят обкатку заготовки вальцами путем их качательного перемещения во встречных направлениях посредством привода. При этом обеспечивают прижатие вальцев к заготовке усилием обкатки. Обкатку осуществляют поочередно в поперечных направлениях относительно продольной оси заготовки. Устройство содержит раму, верхний и нижний вальцы, выполненные с зубчатыми секторами, два силовых гидроцилиндра и два поворотных гидроцилиндра. Силовые гидроцилиндры выполнены с шарнирными рычагами, образующими четырехзвенный механизм для подъема и опускания верхнего вальца и передачи ему усилия обкатки. Штоки поворотных гидроцилиндров шарнирно соединены с коромыслом для передачи нижнему вальцу вращательных моментов в противоположных направлениях и усилия обкатки. Для подъема и опускания нижнего вальца и передачи ему усилия обкатки предусмотрен клиновой механизм. Поворот верхнего вальца осуществляется за счет зацепления его зубчатого сектора с зубчатым сектором нижнего вальца, который одновременно перемещает зубчатую рейку с заготовкой. В результате обеспечивается повышение качества полученных деталей. 2 н. и 8 з.п. ф-лы, 12 ил. РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) 2 393 935 (13) C1 (51) МПК B21H 7/00 (2006.01) B21D 37/12 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ, ПАТЕНТАМ И ТОВАРНЫМ ЗНАКАМ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (21), (22) Заявка: 2009112530/02, 06.04.2009 (24) Дата начала отсчета срока действия патента: 06.04.2009 (45) Опубликовано: 10.07.2010 Бюл. № 19 (73) Патентообладатель(и): Богуславский Борис Зельманович (RU), Литвак Борис Семенович (RU) 2 3 9 3 9 3 5 R U (57) Реферат: Изобретения относятся к обработке металлов давлением и могут быть использованы при штамповке с обкаткой. Заготовку размещают между двумя ...

Method and apparatus for manufacturing rotating body

Rolling machine

내용 없음. No content.

Ball bearings raceways rolling and stabilization plant

FIELD: machine building. SUBSTANCE: invention relates to ball bearings races raceways rolling. Plant includes ball mandrel with deforming elements in form of balls, loading mechanism and mechanism for installation and rotation of workpiece. In loading mechanism electronic dynamometer is installed. Between loading mechanism and ball mandrel is installed misalignment of axes compensator of ball mandrel and workpiece in form of elastic gasket or hinged bearing. Used ball mandrel is ball bearing opposite upper race. In mechanism for installation and rotation of workpiece rolling bearing is installed as support. Deforming balls have diameter, equal to rolling bearing balls diameter. EFFECT: result is higher quality of bearing. 1 cl, 1 dwg, 1 ex РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 611 615 C1 (51) МПК B21H 1/12 (2006.01) B24B 39/00 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ФОРМУЛА (21)(22) Заявка: ИЗОБРЕТЕНИЯ К ПАТЕНТУ РОССИЙСКОЙ ФЕДЕРАЦИИ 2015142863, 08.10.2015 (24) Дата начала отсчета срока действия патента: 08.10.2015 (72) Автор(ы): Королев Альберт Викторович (RU), Королев Андрей Альбертович (RU) 28.02.2017 Приоритет(ы): (22) Дата подачи заявки: 08.10.2015 (45) Опубликовано: 28.02.2017 Бюл. № 7 (56) Список документов, цитированных в отчете о поиске: RU 2541220 C2, 10.02.2015. SU 1733171 A1, 15.05.1992. SU 1803240 A1, 23.03.1993. US 3498095 A, 03.03.1970. 2 6 1 1 6 1 5 R U (57) Формула изобретения Установка для раскатки дорожек качения колец шариковых подшипников, содержащая шариковую оправку с деформирующими элементами в виде шариков, механизм нагружения и механизм для установки и вращения заготовки, отличающаяся тем, что она снабжена установленным в механизме нагружения электронным динамометром и установленным между механизмом нагружения и шариковой оправкой компенсатором перекоса осей шариковой оправки и заготовки, выполненным в виде эластичной прокладки или шарнирного подшипника, при этом в качестве шариковой оправки служит ...

Method of manufacturing forgings of universal joint center crosses

Изобретение относитс  к обработке металлов давлением и может быть использовано в кузнечном производстве при изготовлении поковок крестовин карданных валов. Цель повьппение коэффициента использовани  материала заготовки за счет обеспечени  направленного течени  металла в зонах отростков поковки. Цилиндрическа  заготовка после нагрева на первом этапе предварительного пластического деформировани  подвергаетс  прокатке , после которой оформл етс  одна из пар соосных отростков крестовины. Недеформированна  при этом средн   часть заготовки на втором этапе подвергаетс  осадке с преимущественным течением металла в разные стороны от.оси заготовки в перпендикул рном к ней направлении. .После кантовки на 90 на торцовом этапе получаю вторую пару отростков прокаткой удлиненных концов средней части. 7 ил. е (Л The invention relates to the processing of metals by pressure and can be used in forging production in the manufacture of forged crosses for cardan shafts. The goal is to increase the utilization rate of the workpiece material by providing directional metal flow in the forging process zones. After heating, the cylindrical billet at the first stage of preliminary plastic deformation is subjected to rolling, after which one of the pairs of coaxial processes of the cross is formed. In the second stage, the non-deformed middle part of the preform undergoes sediment with a predominant flow of metal in different directions from the axis of the preform in the direction perpendicular to it. .After turning to 90, at the end stage, I get a second pair of processes by rolling the elongated ends of the middle section. 7 il. e (L

Manufacture of rim stock for automobile

(57)【要約】本公報は電子出願前の出願データであるた め要約のデータは記録されません。

Rolling method and rolling apparatus

본 발명은 길이가 길게 이어지는 선재에 전조가공을 함과 동시에 선재에 이송력을 부여하는 전조가공방법 및 전조가공장치에 관한 것이다. The present invention relates to a roll processing method and a roll processing apparatus for imparting a feed force to the wire rod while at the same time rolling the wire rod with a long length. 본 발명은 길이가 긴 금속 선재를 연속적으로 가공하기 위하여, 제1전조 다이스 및 제2전조 다이스의 사이에 구비된 지지날에 위치시키는 선재의 로딩단계와; 그 선재를 가공함과 동시에 이송력을 부여하기 위하여 제1전조 다이스는 수직면을 기준으로 앞으로 기울이고, 제2전조 다이스는 수직면을 기준으로 뒤로 기울이는 단계와; 제2전조 다이스를 제1전조 다이스방향으로 이송하여 사이에 위치한 선재를 가압하는 단계와; 제1 및 제2전조 다이스를 동일 방향으로 회전시키면서 선재도 동시에 회전시켜 그 선재의 원주면 상에 세레이션을 형성함과 동시에 가공되는 선재를 이송하는 가공 및 이송단계를 포함하는 것이다. The present invention includes a loading step of a wire rod positioned on a support blade provided between a first roll die and a second roll die in order to continuously process a long metal wire rod; Tilting the first roll die forward with respect to the vertical plane and tilting the second roll die backward with respect to the vertical plane to process the wire rod and to impart a feed force; Transferring the second roll die in the direction of the first roll die to press the wire rod located therebetween; The wire rod is also rotated at the same time while rotating the first and second roll die in the same direction to form a serration on the circumferential surface of the wire rod and a processing and conveying step of transferring the wire rod to be processed at the same time. 본 발명에 의하면, 길게 연속적으로 이어지는 선재의 원주면에 전조 다이스에 의하여 세레이션 가공을 할 수 있음과 동시에, 별도로 그 선재에 구동력을 주어 이송을 할 필요가 없이 자연적으로 이송력이 발생하여 선재가 이송이 될 수 있는 특유의 작용 및 효과가 있다. According to the present invention, the circumferential surface of the wire rod which is continuously continuous can be subjected to serration by rolling dies, and at the same time, the feed force is naturally generated without the need for feeding the wire rod to drive the wire rod. There are unique actions and effects that can be transported.

Tool for multipiece cross-wedge rolling

Rolling die of grooved pin

(57)【要約】本公報は電子出願前の出願データであるた め要約のデータは記録されません。

Pipe rolling machine

FIELD: technological processes. SUBSTANCE: invention relates to metal forming, particularly, to inner roller rolling of thin-wall pipes with wall thinning. Machine comprises coaxially installed matrix with crimping and calibrating sections, rolling head with deforming rollers, fixed on rotating mandrel with possibility of diametrical adjustment of rollers position, with drive in form of spindle head with controlled rotation drive and longitudinal movement, pusher installed on hydraulic cylinder rod with adjustable speed of movement, which are arranged on bed with flat guides with possibility of their adjustment and fixation in axial and transverse directions. In the matrix there is lead section with diameter of 5–6 mm which is larger than outer nominal diameter of pipe, crimping section behind it is made in form of conical surface with angle of cone generatrix of not more than 10° and cylindrical with diameter less than outer nominal diameter of pipe by 1.0–1.5 mm, calibrating section after crimping has diameter equal to external nominal diameter of pipe. Pusher is made in the form of a disc, on end part of which at first there is a lead conical section, behind it cylindrical diameter equal to inner diameter of pipe, and end with pins in number of at least two with outer surface is less than outer diameter of pipe by 1.0–1.5 mm, wherein pusher is mounted on post supported by two rollers on flat guide plates, and post is attached to end of hydraulic cylinder rod. EFFECT: higher reliability and convenience during maintenance and operation. 6 cl, 5 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 702 526 C1 (51) МПК B21B 19/14 (2006.01) B21H 1/18 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (52) СПК B21B 19/14 (2019.02); B21H 1/18 (2019.02) (21)(22) Заявка: 2018126715, 19.07.2018 (24) Дата начала отсчета срока действия патента: Дата регистрации: (73) Патентообладатель(и): Семенищев Сергей Петрович (RU) 08.10.2019 (45) ...

Large-thickness-ratio interlayer shell ring rolling compounding method based on local high-temperature strong pressure

本发明属于大型筒节成形制造技术领域，具体涉及一种基于局部高温强压的大厚比夹层筒节轧制复合方法，通过主波纹辊、辅助波纹辊、一号电磁感应加热装置和二号电磁感应加热装置实现第一阶段的异径异温异步波纹辊缝轧制复合，通过主平辊、辅助平辊、三号电磁感应加热装置和四号电磁感应加热装置实现第二阶段的异径异温异步平辊缝轧制复合，在两个阶段的复合过程中不同复合界面的温度通过不同的电磁感应加热装置独立控制，且仅在轧制入口前方进行加热，使复合界面处形成局部高温，避免了大厚比夹层筒节整体加热时间长、能耗大等问题，可以满足组元金属目标变形温度不同时的温度单独控制需求。

Tool assembly for shaping tubular workpiece outer surfaces, without material removal, allows shaping rollers to be used on the axis bolt by changing the spacer rings without altering the dimensions to reduce wear

The tool assembly to work the outer side of a tubular workpiece, without material removal, has a free rotating shaping roller (24) rotating around its axis (24') on an axis bolt (11). An assembly of two spaced bearing disks, powered around a center axis, hold a number of shaping tools with their axes at an angle to the center axis. The axial position of the shaping roller can be varied on the axis bolt by changing the spacer rings (33,34) without altering the dimensions (36).

Stamping and rolling method and a device for implementing same

Ring rolling from metal blanks

金属ブランクからリングを圧延する方法は、マンドレル軸の両側に配置された二つの形成ロール（６）の間にあるマンドレル（４）上にブランク（２）を配置することを含む。一対の下部成長制御ロール（１２）はマンドレル軸（８）より下に配置されており、それらの軸はマンドレル軸と平行でありかつマンドレル軸の両側に位置する。一対の上部成長制御ロール（１６）はマンドレル軸（８）の上側に配置されており、それらの軸はマンドレル軸と平行でありかつマンドレル軸の両側に位置する。一対の上部成長制御ロールの間の距離は一対の下部成長制御ロールの間の距離と異なっている。リングが圧延されるときには、形成ロール及び成長制御ロールの両方がそれに係合される。方法の改良形態においては、上部成長制御ロールが、マンドレル軸の真上に配置された軸を有する単一のロール（２０）によって置換される。

Profiling tubular blanks

Tubular blanks for use e.g. as bicycle hubs are profiled with sectionally varying cavity depths by an arrangement incorporating a combination of at least two axially parallel rollers which are mounted for rotation in opposite senses. They both have the same calibre which progressively increases, calibre depth increasing as the distance of the flanks is reduced. Two cylindrical plug gauges can be urged towards each other and adjusted axially parallel to the rollers in accordance with the elevation of the helical roll pass.

Bearing ring mfre. - by profile-rolling smooth cylindrical workpieces

PROCESS FOR PROFILING AN ANNULAR PART

Transverse rolling appt with automatic - bar advancement

Roll for screw rolling of tubes

MECHANISM FOR ADJUSTING THE PHASE OF THE DIE CYLINDERS OF A MACHINE WORKING BY ROLLING

Rotational symmetrical parts obtained by - transverse rolling rectangular material

The material is heated to transverse rolling temp., preformed cylindrically in a single operation of a press and treated further in a transverse rolling machine to its final rotation-symmetrical shape. Specifically the press is combined with the transverse roller. The upper and lower press tools form a cylindrical or single-vessel hyperbolical cavity.

Roll forming machine for cylindrical parts

Bearing race chipless forming - uses blanks with plain inner surface shaped outer surface and profile roller acting from inside

The chipless forming of bearing races uses blanks with plain ineer surface, but with the outer surface of approximately the same shape as the expected inner surface of the finished product. The formin tools are chosen in such manner that, under pressure, applied from outside, the inner surface is given the desired shape. Preferably the rolled blank is produced in a roller mill with rotary rolls adjustable in radial direction. The outer roll provides the inner surface shape, while the outer surface is shaped by the inner roll so that only relatively small deformation force is needed for polishing.

APPARATUS AND METHOD FOR COLD RING FORMING OF RINGS

APPARATUS AND METHOD FOR FORMING COLD ROLLING RINGS

UNE MACHINE SERVANT A ROULER A FROID DES CAGES DE PALIER, ETC., PRESENTE UN POSTE DE TRAVAIL OU S'EFFECTUE L'OPERATION DE ROULAGE SUR UN FLAN ANNULAIRE, AU MOYEN D'UNE MATRICE ANNULAIRE 80, 82 COOPERANT AVEC UN MANDRIN 50. LA MATRICE EST MAINTENUE COAXIALEMENT DANS UNE ENVELOPPE DE MATRICE 74 MONTEE DE MANIERE A POUVOIR TOURNER DANS L'UNE DE DEUX OUVERTURES PASSANTES 62, 64 D'UNE NAVETTE QUE L'ON FAIT ALLER ET VENIR ENTRE LE POSTE DE TRAVAIL ET DEUX POSTES DE TRANSFERT OU L'ELEMENT D'INSERTION ANTERIEURE DE MATRICE 82 EST EJECTE AVEC L'ANNEAU ROULE ET REINSERE AVEC UN NOUVEAU FLAN. L'ENVELOPPE DE MATRICE DEPASSE A TRAVERS UNE FENTE 70 DE LA NAVETTE POUR COOPERER AVEC LE ROULEAU D'ENTRAINEMENT DE MATRICE 78 ET TRANSMET PAR L'INTERMEDIAIRE DE LA MATRICE LA ROTATION PROVENANT DU ROULEAU D'ENTRAINEMENT AU MANDRIN ET A UNE PAIRE DE ROULEAUX SUPPORTS DE MANDRIN 110 QUI APPLIQUENT UNE FORCE RADIALE AU MANDRIN. LES ROULEAUX SUPPORTS DE MANDRIN SONT MONTES DANS UNE TETE SUR UN ARBRE PRECHARGE DE MANIERE A COMMANDER LEUR POSITION AXIALE SANS ATTACHE; ILS COMMANDENT AUSSI LES POSITION AXIALES DE LA MATRICE ET DU MANDRIN. A MACHINE USED FOR COLD ROLLING OF BEARING CAGES, ETC., PRESENTS A WORKSTATION WHERE THE ROLLING OPERATION IS PERFORMED ON AN ANNULAR BLANK, BY MEANS OF AN 80, 82 ANNULAR DIE COOPERATING WITH A 50 CHUCK. THE MATRIX IS HELD COAXIALLY IN A MATRIX ENVELOPE 74 MOUNTED SO AS TO BE ABLE TO ROTATE IN ONE OF TWO PASSING OPENINGS 62, 64 OF A SHUTTLE THAT WE GO BETWEEN THE WORK STATION AND TWO TRANSFER STATIONS OR THE ANTERIOR INSERT OF DIE 82 IS EJECTED WITH THE ROLL RING AND REINSERTED WITH A NEW BLANK. THE DIE ENVELOPE PASSES THROUGH A SLOT 70 IN THE SHUTTLE TO COOPERATE WITH THE DIE DRIVE ROLL 78 AND TRANSMITS THROUGH THE DIE THE ROTATION FROM THE DRIVE ROLLER TO THE CHUCK AND A PAIR OF ROLLERS CHUCK MOUNTS 110 WHICH APPLY RADIAL FORCE TO THE CHUCK. THE CHUCK SUPPORTING ROLLS ARE MOUNTED IN A HEAD ON A PRELOADED ...

PROCESS FOR SEPARATING WASTE FROM LAMINATED CYLINDRICAL BLANKS

Profiling process for solid cylindrical blanks

Patent FR2332084B1

Rolling machine for annular component, e.g. ball bearing race, production

A rolling machine , for producing an annular component (10), comprises a forming mandrel (16), a forming wheel (18), which defines, with the forming mandrel (16), a rolling envelope (19) corresponding with the final form desired for the transverse section of the annular component (10), and two thrust rollers (20) that are applied on the forming mandrel (16) on either part of the rolling envelope (19). In addition, two face control rollers (29) are provided in order to each intervene respectively on the lateral faces (13) of the annular component (10) at a distance from the rolling envelope (19). The face control rollers (29) are arranged between the thrust rollers (20) in the overall volume surrounding the outer contour of them.

Forming rollers for cylindrical component - progressive undercut on inclined sides of forming wedge

When a cylindrical component with reduced diameter over its central section is produced by forming rollers, a considerable tensile force is set up by the tapered sides of the forming wedges. Since this tensile force is a function of the taper angle and the diameter reduction ratio, it is a limiting factor on roller forming. By progressively undercutting the tapered sides, starting with no undercut at the thin end of the forming wedge, the tensile force set up decreases from a maximum at the beginning of the forming process to zero at the end of it. This leads to an improved diameter reduction ratio and thus a higher rolling efficiency.

Patent FR2330477B1

Rolling process for thin-walled metal tubes

PROCESS FOR SEPARATING LAMINATED CYLINDRICAL LAMINATED WASTE

LA PRESENTE INVENTION A POUR OBJET UN PROCEDE DE FABRICATION PAR DEFORMATION DE PIECES A PARTIR D'EBAUCHES CYLINDRIQUES. CE PROCEDE EST CARACTERISE EN CE QU'ON EFFECTUE LA SEPARATION DE DECHETS D'EXTREMITES 3 DES EBAUCHES LAMINEES 2 PAR UNE REDUCTION DE LA VITESSE DE ROTATION DES DECHETS D'EXTREMITE 3 APRES LEUR DEFORMATION. L'INVENTION PEUT S'APPLIQUER AVANTAGEUSEMENT A LA FABRICATION DE PIECES DE FORME COMPLEXE. THE SUBJECT OF THE PRESENT INVENTION IS A MANUFACTURING PROCESS BY DEFORMATION OF PARTS FROM CYLINDRICAL BLANKETS. THIS PROCESS IS CHARACTERIZED IN THAT THE SEPARATION OF END WASTE 3 FROM THE LAMINATED BLANKETS 2 BY A REDUCTION OF THE ROTATION SPEED OF END WASTE 3 AFTER THEIR DEFORMATION. THE INVENTION CAN BE APPLIED WITH ADVANTAGE TO THE MANUFACTURING OF COMPLEX SHAPED PARTS.

Patent FR2311610B1

Machining method of control valve shaft for power steering gear

본 발명은 자동차 파워 스티어링 기어용 제어밸브 샤프트의 가공방법에 관한 것으로, 가공비가 저렴하고 가공작업도 용이하게 이루어지며, 가공작업시에 제어밸브 샤프트의 유동을 일으키지 않음으로써 소음으로 인한 작업자의 불편을 해소할 수 있도록 함에 목적이 있다. 위와 같은 목적을 달성하기 위한 본 발명은, 외주부(1)에 축방향으로 유로가 지나가는 홈(1a)이 형성되는 자동차 파워 스티어링 기어용 제어밸브에 있어서,상기 홈(1a)을 전조 작업에 의해 가공하는 것을 특징으로 한다.

APPARATUS FOR FORMING, USING A CYLINDER, SEAMLESS ARTICLES OF ANNULAR SHAPE

APPAREIL DE FORMAGE DE PIECES ANNULAIRES. L'APPAREIL COMPREND UNE TETE DE MATRICE DANS LAQUELLE TOURNE UNE MATRICE ANNULAIRE, UNE TETE DE CYLINDRE DANS LAQUELLE TOURNE UN CYLINDRE DE COMPRESSION, CETTE TETE POUVANT SE RAPPROCHER ET S'ELOIGNER DE LADITE MATRICE ANNULAIRE, ET DES MOYENS SERVANT A DEPLACER LEDIT CYLINDRE DE COMPRESSION RADIALEMENT PAR RAPPORT A LADITE MATRICE ANNULAIRE LORSQUE CE CYLINDRE DE COMPRESSION EST LOGE DANS LADITE MATRICE, LE MONTAGE ETANT TEL QUE L'EBAUCHE ANNULAIRE PEUT ETRE INTERCALEE ENTRE CE CYLINDRE DE COMPRESSION ET LADITE MATRICE ANNULAIRE. APPLICATION A LA REALISATION DE JANTES POUR VEHICULES. ANNULAR PIECES FORMING APPARATUS. THE APPARATUS INCLUDES A DIE HEAD IN WHICH AN ANNULAR DIE TURNS, A CYLINDER HEAD IN WHICH A COMPRESSION CYLINDER TURNS, THIS HEAD CAN APPROACH AND MOVE AWAY FROM THE said ANNULAR DIE, AND LED CYLINDERS SERVING TO MOVE RADIALLY COMPRESSION WITH RESPECT TO THE SAID ANNULAR MATRIX WHEN THIS COMPRESSION CYLINDER IS LOCKED IN THE SAID MATRIX, THE ASSEMBLY BEING SUCH THAT THE ANNULAR BLANKET CAN BE INTERCALED BETWEEN THIS COMPRESSION CYLINDER AND THE SAID ANNULAR MATRIX. APPLICATION TO THE REALIZATION OF RIMS FOR VEHICLES.

Method of manufacturing a stepped bar and stepped bar

Verfahren zur Herstellung einer gestuften Stange (1a, 1b), umfassend die Schritte - zerspanende Bearbeitung zumindest eines ersten Längsabschnitts eines stangenförmigen Rohteils unter Bildung eines ersten Stangenabschnitts (2) und eines zweiten Stangenabschnitts (3), wobei der erste Stangenabschnitt (3) auf einen über den ersten Stangenabschnitt (3) gleichbleibenden ersten Durchmesser (d 1 ) abgetragen wird, der kleiner als der ursprüngliche Durchmesser (d 2,3 ) des stangenförmigen Rohteils und ungleich dem Durchmesser des zweiten Stangenabschnitts (3) ist, und unter Ausbildung einer Rohoberfläche des ersten Stangenabschnitts (2) mit einer ersten gemittelten Rautiefe R Z , - Walzen oder Rollen der Oberfläche des ersten Stangenabschnitts (2) auf eine zweite gemittelte Rautiefe R Z , die kleiner ist als die erste gemittelte Rautiefe, gekennzeichnet durch - anschließendes Härten des ersten Stangenabschnitts (2).

Ring rolling device with axially fixed rolling bearings

一種用於擴大一環件胚料的環件輥軋裝置，包含一軋壓元件，一可旋轉地安裝的心軸，及一前進裝置其中該心軸係以一第一端部可旋轉地裝在一第一滾軋軸承中，並以一第二端部可旋轉地裝在一第二滾軋軸承中。該環件胚料能被繞該心軸安裝。藉該前進裝置，該心軸係可移向該軋壓元件並再由該後者離開，其中有一輥軋間隙會減少尺寸，且該環件胚料係在其內被輥軋，會形成於該心軸與該軋壓元件之間。該二滾軋軸承係軸向固定地設在該前進裝置中，且該心軸係安裝成可相對於該二滾軋軸承軸向地移動。

Method of making internal shapes in metal objects having smooth or toothed rotational outer surfaces

A method of shaping a plastically deformable sleeve by rolling jaws, having an internal shaping surface, on the sleeve after a shaping core has been placed in the bore of the sleeve. As a result of the rolling operation, the outer diameter of the material is reduced and the inner surface of the sleeve assumes the external shape of the core. The method enables simultaneous shaping of the outer and inner surface of the sleeve such as an outer toothing and a splined bore. In a particular embodiment in which internal threads are to be formed on the sleeve, an unrevolving core is used which is elastically biassed against axial displacement so that when the sleeve is rotated by the jaws in the course of shaping the core will be axially displaced against the elastic biassing action and the core will automatically advance over an axial feed distance when the jaws release the sleeve.

Rolling machine for deforming cylindrical metallic ring blanks

Method for processing precision forging of bearing ring

A method for processing a precision forging of a bearing ring, comprising the following processing steps: (1) preparing a ring blank having a chamfer by means of a machining process; (2) performing low-oxidizing heating or non-oxidizing heating, or not heating; and (3) shaping by means of ring rolling. The machining method in the step (1) is turning; the heating methods in the step (2) are protective atmosphere heating, vacuum heating, rapid heating by electromagnetic induction and heating by applying a protective coating to a ring blank surface; and the shaping by means of ring rolling in the step (3) is completed by means of a ring rolling mill, and a rolling path of the bearing ring is rolled out simultaneously during the ring rolling process so as to carry out integral formation of the rolling path and a ring forging.

ROLLING FORMING MACHINE WITH REMOVABLE DEVICE TO HOLD THE PART AT WORK

IMPROVEMENTS IN GALETAGE PROCESSES

Process for the forming production dimensionally accurate and dimensionally accurate, rotationally symmetrical hollow body and apparatus for carrying out the method

Verfahren zur umformenden Herstellung form- und maßgenauer, rotationssymmetrischer Hohlkörper (17) aus massivem stangenförmigen Halbzeug (1), wobei das Halbzeug (1) im Vorwärtshub durch Bohrungsdrücken unter Verwendung eines Drückdornes (7) und eines mindestens zwei Drückrollen (9) aufweisenden Rollenschlittens (11) zu einem Hohlkörper (17) umgeformt wird, dadurch gekennzeichnet, dass a) vor dem Umformvorgang die Fließspannung des Werkstoffes des Halbzeuges (1) durch gezielte Erwärmung herabgesetzt wird, wobei das Halbzeug (1) erwärmt und nachfolgend gekühlt wird, wodurch ein gezieltes Temperaturgefälle vom Kern des Halbzeuges (1) zu seiner Mantelfläche hin für die nachfolgende Formgebung eingestellt wird; b) im Umformbereich (16) der entstehende Hohlkörper (17) gekühlt wird, um die Festigkeit des Werkstoffes bei ausreichender Duktilität zu erhöhen, und c) darauffolgend der Hohlkörper (17) einer Wärmebehandlung unterzogen wird, wobei das Temperaturprofil gesteuert wird, um die Festigkeit und die Zähigkeit des Werkstoffes zu erhöhen und die Dauerfestigkeit zu verbessern. Process for the reshaping production dimensionally accurate and dimensionally accurate, rotationally symmetrical hollow body (17) of solid rod-shaped semifinished product (1), wherein the semifinished product (1) in the forward stroke by Bohrungsdrücken using a spinning mandrel (7) and at least two spinning rollers (9) having roller carriage ( 11) to a hollow body (17), characterized in that a) before the forming process, the flow stress of the material of the semifinished product (1) is reduced by targeted heating, wherein the semifinished product (1) is heated and subsequently cooled, whereby a targeted Temperature gradient is set from the core of the semifinished product (1) to its lateral surface for subsequent shaping; b) in the forming area (16) the resulting hollow body (17) is cooled in order to increase the strength of the material with sufficient ductility, and c) subsequently the hollow ...

Patent FR2258913B1

Rolling device for fillet part

(57)【要約】本公報は電子出願前の出願データであるた め要約のデータは記録されません。

ROLLING OF RINGS

Dishing and flanging machine.

Drive shaft for windshield wiper and forming device thereof

An object of the present invention is to provide a plurality of layers of null serrations on the outer surface of a wiper drive shaft to sufficiently secure a portion to which a counterpart is caught. The present invention relates to a wiper drive shaft and a machining apparatus thereof. The present invention includes a first mold module (100) in which a first machining part (150) extends in the longitudinal direction and a second mold module (200) provided so as to be spaced apart from the first mold module (100) with a wiper drive shaft as a workpiece interposed therebetween, moving relative to the first mold module (100), and having a second machining part (250) facing the first machining part (150). In the present invention, the first machining part (150) and the second machining part (250) are symmetrical to each other. At least one of the first mold module (100) and the opening and closing operation unit (200) linearly moves in the extension direction of the first machining part (150) and the second machining part (250) to surround the outer peripheral surface of the drive shaft and machine a null serration (17) of a multilayer (17a).

Apparatus for profiling cylindroid pieces through forging. (Machine-translation by Google Translate, not legally binding)

Apparatus for profiling cylinder pieces by forcing, consisting of at least three juxtaposed rollers (10, 12, 14) arranged with their axes parallel and forming a polygon in their end view, and means for driving one of the rollers, characterized by a circumferential recess (22, 42) in at least one roller that partially defines a closed profiling space adapted to receive and trap a cylinder-shaped part to be machined (26, 36); and further characterized by means for moving the rollers in a mutual approach and distance relationship to vary the volume of the profiler space. (Machine-translation by Google Translate, not legally binding)

Device for shaping parts of revolution by rolling between transverse rolls at wedge intervals

ROLLING MACHINE FOR RINGS.

Manufacture of stepped shaft-like product

(57)【要約】本公報は電子出願前の出願データであるた め要約のデータは記録されません。

Apparatus for limiting the stock length fed to a transferse wedge-action rolling machine

1442518 Cross-wedge rolling VYZKUMNY USTAV TVARECICH STROJU A TECHNOLOGIE TVARENI 8 Nov 1974 [8 Nov 1973] 48530/74 Heading B3M A cross-wedge rolling machine, Fig. 1, having rolls 4 and 5 carrying rolling tools 6 and 7 is provided with apparatus 1 for limiting the feed of a workpiece bar M from a feeding mechanism (not shown) located to the right. The assembly 1 Fig. 2 includes an axially slidable sleeve 9 supported within a fixed bracket 8 and carrying an abutment 36 which is contacted by the bar during feeding. Axial movement of the sleeve is limited in both directions by an adjustable nut 17 whose upward extension 16 moves in a fixed slot 15, and a spring-biased pad 11 serves to brake movement of the sleeve. A cam roller 27 is carried by a downward extension of the nut and cooperates with a cam 32 attached to the roll 5. In operation, the bar M pushes the sleeve to the left which causes the upward extension 16 to trip a switch 31 for starting rotation of the rolls. The switch provides an electrical indication that the stack has been fed in. When a complete rotation of the rolls has been made (and the bar has been profiled by the tools) the cam 32 moves the nut 17 back to its initial position.

Patent JPS5924896B2

Method for cross-wedge rolling poppet valves

Die for making rolled forcings

Method of manufacturing articles by deformation of cylindrical blanks

Disclosed is a method of manufacturing articles by deformation of cylindrical blanks, comprising heating the blanks (1), their transverse wedge forming followed by deformation of the end crops (3) by shearing blades, separating the end crops (3) from the formed blanks (2), and flashless forging of the formed blanks (2), separation of the end crops (3) from the formed blanks (2) being performed by reducing the speed of rotation of the end crops (3) after deformation down to a value ranging from ω/2.5 to zero, where ω is the speed of rotation of the blank (2) during forming.

METHOD FOR ROLLING CAVES

Patent FR2126263B1

Die for rotation forming

(57)【要約】本公報は電子出願前の出願データであるた め要約のデータは記録されません。

Method of producing a stepped shaft

A method for forming a stepped shaft includes: forming a billet of a predetermined mass; heating the billet; cross-wedge rolling the billet to form an intermediate workpiece having a first cylindrical portion and a second cylindrical portion that are axially spaced apart by a neck that is smaller in diameter than the first and second cylindrical portions; and performing at least one upset forging operation on the end of the intermediate workpiece to enlarge the first cylindrical portion such that in at least one location its diameter is larger than a diameter of any other portion of the stepped shaft and larger than a diameter of the billet.

Patent CS156312B1

Device for shaping rotational or angular objects

FORMING ROLL TO SHAPE LAMINATED CYLINDRICAL METAL BODIES AND PROCESS FOR ITS MANUFACTURE

Method for manufacturing semi-finished product with end section, involves subjecting blank to rolling process, and creating molded product in course of rolling process, where end section is provided against adjacent section

The method involves subjecting a blank to a rolling process, and creating a molded product in the course of the rolling process. An end section is provided against an adjacent section of a material accumulation. The material accumulation is created by the rolling process, where the material accumulation of the end section is brought by a molding press process in its final geometry. The blank is rolled between two transverse roller matrices (10,10.1). An independent claim is included for a machine for manufacturing a semi-finished product with an end section.

Patent FR2187457B2

DEVICE FOR ADJUSTING THE CONTINUOUS RUNNING OF THE ROLLER PROFILES OF A PAIR OF TOOL ROLLERS ON A WEDGE CROSS ROLLING MACHINE

PROCESS AND MACHINE FOR MANUFACTURING REVOLUTION BODIES HAVING FOOTPRINT-GROOVED GROOVES

Rolling round profiles from billets

Long cylindrical symmetrical workpieces are formed from blanks with angular cross section, particularly billets, by cross rolling. Blanks formed can be used as workpieces for the final forming process. The surface of the cross rolling tool pref. has four waves of diminishing height on its surface, the included arcs of which correspond approximately to the circumference of the blank.

DEVICE FOR ROLLING BEARING RINGS

Assembled roll for dividing rods by cross-wedge rolling

Mechanical machinery for lenght limitation of formed material machine feeding for cross tapered rolling

ROLLING MACHINE FOR ANNULAR PART TO BE FORMED