US3277752A - Rod scalping machine - Google Patents

Rod scalping machine Download PDF

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Publication number
US3277752A
US3277752A US375433A US37543364A US3277752A US 3277752 A US3277752 A US 3277752A US 375433 A US375433 A US 375433A US 37543364 A US37543364 A US 37543364A US 3277752 A US3277752 A US 3277752A
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US
United States
Prior art keywords
cutter head
rod
guide means
bearing
tubular member
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US375433A
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English (en)
Inventor
Lindemann Hans
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from DEL45194A external-priority patent/DE1226395B/de
Priority claimed from DE1964L0047689 external-priority patent/DE1289721B/de
Application filed by Individual filed Critical Individual
Application granted granted Critical
Publication of US3277752A publication Critical patent/US3277752A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES, PROFILES OR LIKE SEMI-MANUFACTURED PRODUCTS OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C43/00—Devices for cleaning metal products combined with or specially adapted for use with machines or apparatus provided for in this subclass
    • B21C43/02—Devices for cleaning metal products combined with or specially adapted for use with machines or apparatus provided for in this subclass combined with or specially adapted for use in connection with drawing or winding machines or apparatus
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B5/00—Turning-machines or devices specially adapted for particular work; Accessories specially adapted therefor
    • B23B5/08—Turning-machines or devices specially adapted for particular work; Accessories specially adapted therefor for turning axles, bars, rods, tubes, rolls, i.e. shaft-turning lathes, roll lathes; Centreless turning
    • B23B5/12—Turning-machines or devices specially adapted for particular work; Accessories specially adapted therefor for turning axles, bars, rods, tubes, rolls, i.e. shaft-turning lathes, roll lathes; Centreless turning for peeling bars or tubes by making use of cutting bits arranged around the workpiece
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T82/00—Turning
    • Y10T82/25—Lathe
    • Y10T82/2527—Lathe having hollow cutter head

Definitions

  • the present invention relates to improvements in a rod scalping machine of the known type in which the rod stock which is secured against rotation is fed in its axial direction through a revolving cutter head and is guided directly in front and at the rear of the cutter head by nonrotating radially resilient guide means so that the intermediate part of the rod which is being scalped is disposed exactly coaxially to the cutter head.
  • These rear guide means are mounted at the inside of and are thus surrounded by at least one of the bearings on which the cutter head is supported.
  • a scalping machine of the above-mentioned type permits rod-shaped materials to be cut to certain diameters at a degree of accuracy which depends primarily upon the tolerances of the hearings on which the revolving cutter head is mounted.
  • the cutter head itself is secured to a tubular shaft at the inside of which the bearings are mounted which, in turn, are mounted on a stationary sleeve which is secured to the machine frame and at the inside of which the rear guide means are mounted in a position closely adjacent to the cutter head.
  • These rear bearings which support the revolving cutter head on the stationary sleeve must necessarily be of a relatively large diameter.
  • the present invention provides at least one additional bearing of the smallest possible diameter and a very small bearing clearance for supporting the cutter head at a point located between the cutter head and at least one of the nonrotating guide means.
  • One race of this hearing is secured by a flange or the like to the cutter head itself, while the other race is secured to a nonrotating part, for example, the head of the guide means which are located directly adjacent to this bearing.
  • the race with the smallest diameter is then preferably secured to the cutter head and that with the largest diameter to the nonrotating part.
  • suitable spring means may be provided which tend to press the head of the guide means in front of the cutter head in the direction toward the latter so that the two races of the small bearing will be under a lateral pressure relative to each other and thereby reumble the small tolerance which this bearing might have to the utmost extent.
  • the small additional bearing for supporting the cutter head with the smallest possible bearing clearance or tolerance may therefore be mounted either between the guide means which are located in front of the cutter head and the cutter head itself or between the latter and the guide means which are located directly behind the cutter 3,277,752 Patented Oct. 11, 1966 head. It is also possible according to the invention to provide two of these small bearings, one between the front guide means and the cutter head and the other between the cutter head and the rear guide means. If only one of these additional bearings is provided between the front guide means and the cutter head, the cutter head should be directly connected to its tubular drive shaft. The same may also apply if there is only one small bearing provided between the cutter head and the rear guide means. In the latter case, and especially if two such small bearings are provided in front of and behind the cutter head, it is, however, more advisable to connect the cutter head indirectly to its tubular drive shaft by means of a resilient element.
  • the invention further provides that, instead of connecting one race of the small front bearing directly to the cutter head by means of a flange, this flange be provided with an annular projection which engages into the central bore of the cutter head and has a conical surface upon which the scalping blades engage, and that suitable means are provided for shifting the other race which is connected to the nonrotating part in the axial direction so that thereby the entire front bearing is shifted and the conical projection is inserted more or less deeply into the bore of the cutter head and against the correspondingly inclined end surfaces of the scalping blades which may thus be adjusted to different scalping diameters.
  • suitable guide means which permit the projection to slide
  • FIGURE 1 shows a longitudinal section of the principal parts of a scalping machine according to the invention which is provided with a bearing of a relatively small diameter between the cutter head and the guide means which are located in front of the cutter head;
  • FIGURE 2 shows a longitudinal section similar to that according to FIGURE 1 of a modification of the scalping machine in which a bearing of a relatively small diameter is mounted between the cutter head and the guide means which are located behind the cutter head; while FIGURE 3 shows a similar longitudinal section of a further modification of the scalping machine in which the rflange which supports the inner race of the small bearing is mounted in a bore in the cutter head in order to permit the scalping diameter of the cutting blades to be varied by an axial adjustment of the bearing.
  • FIGURE 1 of the drawings the rod stock 1 to be scalped is secured against rotation and fed through the scalping machine in the direction of the arrow 2.
  • the outer surface of the rod stock is cut or scalped by the scalping blades 4 which are mounted in the revolving cutter head 3.
  • This cutter head 3 is secured to the end of a tubular drive shaft 5 which is rotatably mounted by means of bearings :6 on a stationary sleeve-7 which is rigidly secured to the bench or frame 8 of the machine.
  • Drive shaft 5 has an outer gear rim 9 for being driven by a chain or a turbine.
  • nonrotating guide means which are of a conventional type and are therefore indicated merely diagrammatically and which comprise front and rear guide jaws 11 and 13 which are in resilient engagement with the rod 1 and prevent any vibrations of the part of the latter which is disposed between these guide jaws and is being worked upon by the scalping blades 4 which are mounted in the cutter head 3.
  • guide rollers which engage resiliently with the rod to be scalped but only act as sliding guides.
  • the front guide jaws 11 are mounted in a supporting head which is covered by a plate 19 and mounted by a flange or other connecting element 12 on the bench or frame 8 of the machine.
  • the rear guide jaws 13 which likewise engage resiliently with the rod 1 are mounted at the inside of the end of a tubular member 27 which is inserted into the stationary sleeve 7 and locked thereto or to another stationary element of the machine.
  • the cutter head 3 according to FIGURE 1 is supported by an additional bearing 14 which is located between the guide means 10, 11 in front of the cutter head 3 and the cutter head itself and has the smallest possible diameter and the smallest possible bearing clearance.
  • the inner race 15 of this bearing is mounted on a flange 16 which is secured to the cutter head 3, while the outer race 17 is mounted in a ⁇ huge 18 which is secured to the end plate 19 on the supporting head 10.
  • the small supporting bearing 14 is mounted between the cutter head 3 and the rear guide means 13.
  • the cutter head 3 is in this case connected to the tubular drive shaft by means of a resilient connecting element 26.
  • the inner race of bearing 14 is again mounted on a flange 16 which is secured to the cutter head 3, while the outer race of this hearing is mounted within a flange 18 which is secured to the sleeve 7 and/or to the tubular member 27 which carries the guide means 13.
  • the scalping machine according to FIGURE 2 may be equipped with a second supporting bearing which may be mounted in the same manner as shown in FIGURE 1, that is, in the space in FIGURE 2 between the cutter head 3 and the front guide means 11, 12.
  • the inner race of this second hearing may therefore also be mounted on a flange 16 which is secured to the cutter head 3, and its outer race within a flange 18 which is secured to the plate 19. If such a second bearing 14 is omitted, the connecting element 12 should be moved more closely toward the cutter head 3 and then be locked in a fixed position.
  • This connecting element 12 should therefore be movable in the axial direction, as indicated in FIGURE 2 by the double-arrow 28, which also permits the cutter head 3 to be easily exchanged.
  • FIGURE 3 shows another modification of the invention in which the small supporting bearing 14 is again mounted in front of the cutter head 3.
  • Flange 16 on which the inner race 15 of bearing 14 is mounted is, however, in this case provided with an annular extension 20 which is slida-ble along the wall of the bore 21 in the cutter head 3 and provided on its inner side with a conical surface 22 which engages with the corresponding inclined surfaces of the scalping blades 4.
  • the connecting element 12 is shifted in the axial direction, for example, by a lever 24 which is pivotably mounted at 23 or by any other suitable means, the cutting diameter of the scalping blades 4 may be varied.
  • Flange 16 with its extension 20 in the bore 21 is preferably locked against rotation by a tongue-and-groove connection 25 or the like.
  • the connecting element 12 should be guided so as to be movable merely in the axial direction and should be adapted to be locked in any position to which it may be adjusted.
  • a rod scalping machine comprising a stationary frame, a tubular member rigidly secured to said frame, bearing means mounted on the outer peripheral surface of said tubular member, a tubular drive shaft surrounding said tubular member, and rotatably mounted on said bearing means, a rotary cutter head secured to one end of said drive shaft coaxially thereto and adapted to be driven thereby and having a central aperture, cutting blades mounted on said cutter head and projecting into said aperture, radially resilient but nonrotatable guide means located in front and at the rear of said rotary cutter head and at small distances therefrom and adapted to guide a nonrotatable rod coaxially with said cutter head when said rod is fed in its axial direction through said front guide means, between said cutting blades on said rotary cutter head so as to be scalped thereby, and through said rear guide means in said tubular member, normally stationary guide supporting means for holding said front guide means, said tubular member containing and form ing the supporting means of said rear guide means, and at least
  • said securing means for said races comprise a pair of annular flanges secured to the supporting means of one of said guide means and to said cutter head, respectively, said inner race being secured to the outer surface of said flange on said cutter head, and said outer race being secured to the inner surface of said flange on said guide supporting means.
  • said securing means for one of said races comprise an annular flange rigidly secured to said supporting means of said front guide means, said securing means for the other race comprising an annular adjusting flange axially projecting from said other race into said aperture of said cutter head and having an outer surface axially slidable along the Wall of said aperture and an inner conical surface engaging upon the outer ends of said cutting blades, and means for shifting said supporting means of said front guide means in the axial direction, whereby said cutting blades may be adjusted in substantially radial directions to vary the scalping diameter thereof.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Rolls And Other Rotary Bodies (AREA)
  • Harvester Elements (AREA)
US375433A 1963-06-25 1964-06-16 Rod scalping machine Expired - Lifetime US3277752A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DEL45194A DE1226395B (de) 1963-06-25 1963-06-25 Wellenschaelmaschine
DEL0047690 1964-04-24
DE1964L0047689 DE1289721B (de) 1963-06-25 1964-04-24 Wellenschaelmaschine

Publications (1)

Publication Number Publication Date
US3277752A true US3277752A (en) 1966-10-11

Family

ID=27211441

Family Applications (1)

Application Number Title Priority Date Filing Date
US375433A Expired - Lifetime US3277752A (en) 1963-06-25 1964-06-16 Rod scalping machine

Country Status (3)

Country Link
US (1) US3277752A (de)
AT (1) AT248197B (de)
FR (1) FR1429274A (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2501557A1 (fr) * 1981-03-10 1982-09-17 Inst T Traktornogo Dispositif d'usinage de surfaces cylindriques pour machines-outils d'usinage des metaux
US6341547B2 (en) * 1998-07-10 2002-01-29 Lidkoping Machines Tools Ab Lathe and method for turning a work piece on a lathe

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3038361A (en) * 1958-11-04 1962-06-12 Kieserling & Albrecht Turning machines

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3038361A (en) * 1958-11-04 1962-06-12 Kieserling & Albrecht Turning machines

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2501557A1 (fr) * 1981-03-10 1982-09-17 Inst T Traktornogo Dispositif d'usinage de surfaces cylindriques pour machines-outils d'usinage des metaux
US6341547B2 (en) * 1998-07-10 2002-01-29 Lidkoping Machines Tools Ab Lathe and method for turning a work piece on a lathe

Also Published As

Publication number Publication date
AT248197B (de) 1966-07-11
FR1429274A (fr) 1966-02-25

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