US3817130A - Apparatus for moving cutters in machines for shaving metallic rod stock - Google Patents

Apparatus for moving cutters in machines for shaving metallic rod stock Download PDF

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Publication number
US3817130A
US3817130A US00340822A US34082273A US3817130A US 3817130 A US3817130 A US 3817130A US 00340822 A US00340822 A US 00340822A US 34082273 A US34082273 A US 34082273A US 3817130 A US3817130 A US 3817130A
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US
United States
Prior art keywords
workpiece
prime mover
rolls
combination
advancing
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
US00340822A
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English (en)
Inventor
A Goeke
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.)
TH Kieserling and Albrecht GmbH and Co
Original Assignee
TH Kieserling and Albrecht GmbH and Co
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
Application filed by TH Kieserling and Albrecht GmbH and Co filed Critical TH Kieserling and Albrecht GmbH and Co
Application granted granted Critical
Publication of US3817130A publication Critical patent/US3817130A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • Y10T408/00—Cutting by use of rotating axially moving tool
    • Y10T408/16—Cutting by use of rotating axially moving tool with control means energized in response to activator stimulated by condition sensor
    • Y10T408/175—Cutting by use of rotating axially moving tool with control means energized in response to activator stimulated by condition sensor to control relative positioning of Tool and work
    • 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

  • ABSTRACT A machine for shaving metallic rod stock has two spaced-apart sets of advancing rolls which transport a workpiece lengthwise and are driven by discrete mo tors so that the movements of one set of rolls are synchronized with movements of the other set of rolls.
  • a rotary sleeve-like tool holder surrounds with clearance the workpiece between the two sets of advancing rolls and carries several radially extending cutters which are movable radially into and form engagement with the workpiece by an adjusting unit including a variahle-speed transmission driven by a further motor, When the motors for the advancing rolls are arrested. the rolls continue to advance the workpiece for a certain interval of time due to inertia.
  • the motor for the adjusting unit is started with a certain delay following stoppage of the motors for the advancing rolls, whereby the length of such delay corresponds to the interval of lengthwise transport of the workpiece due to inertia of the rolls.
  • the motor which operates the adjusting unit is started prior to starting of the motors for the advancing rolls so that the workpiece is set in motion simultaneously with termination of movement of cutters from retracted to operative positions.
  • the orbiting cutters remain in engagement with the workpiece during and after deceleration of the advancing mechanism to zero speed. This invariably results in excessive localized heating of the workpiece due to friction which is generated on contact with the orbiting cutters and subsequent to deceleration of the advancing mechanism. Moreover, the cutting pressure os terminated as soon as the workpiece comes to a complete halt with the result that the stressing of the cutters and their holder is reduced or terminated. Such relaxation of stressing causes a slight but detectable radial movement of cutters toward the axis of the adjacent portion of the workpiece so that, when the workpiece is set in motion, its diameter is reduced below an optimum value. This starts a chain reaction because the detector initiates an adjustment of the cutters radially outwardly as soon as it detects the smaller-diameter portion of the workpiece with the result that the diameter of the workpiece increases beyond the optimum value.
  • An object of the invention is to provde a shaving machine for rod-like metallic stock (such as metallic wire) with an apparatus which can automatically control the positions of one or more orbiting material removing tools in such a way that the orbiting tool or tolls are disengaged from the workpiece when the latter is at a standstill and that the workpiece is set in motion only when the orbiting tool or tools reassume their optimum positions for removal of material from the workpiece.
  • Another object of the invention is to provide a shaving machine of the just outlined character with means for controlling the stoppage and starting of prime movers which are utilized to effect lengthwise movement of rodlike metallic workpieces and the adjustment of material removing tools toward or away from the workpiece.
  • a further object of the invention is to provide a novel operative connection between the motor which operates the adjusting unit for the orbiting material removing tools of a shaving machine and the motor or motors which operate the advancing means for the workpiece.
  • An additional object of the invention is to provide a shaving machine with novel and improved timer and time-delay means for controlling the starting and stoppage of the just outlined motors.
  • Still another object of the invention is to provide a shaving machine wherein the material removing tool or tools can move relative to the work while the work is at a standstill without any danger of overheating the work, and wherein the diameter of work is not reduced below the desired diameter when the shaving operation is started or resumed.
  • the invention is embodied in a machine for shaving metallic rod stock which comprises advancing means operable to feed a rod-like workpiece lengthwise along a predetermined path; a hollow rotary tool holder which surrounds a portion of the path for the workpiece and supports at least one material removing tool so that the tool orbits with the holder and is movable radially of the holder between a workpiece-engaging operative position and a retracted position, adjusting means which is operable to move the tool radially of the holder, first prime mover means for operating the advancing means which latter continues to feed the workpiece by inertia for a predetermined interval of time following the stoppage of first prime mover means, second prime mover means for operating the adjusting means, and time-delay means which serves to start the second prime mover means and to thereby effect a movement of the tool from its operative position with a delay which corresponds to the aforementioned interval following the stoppage of first prime mover means so that the tool leaves its operative position and is thus dis
  • the shaving machine further comprises second timedelay means which serves to start the first prime mover means with a predetermined delay following the starting of the second prime mover means so that the adjusting means completes the movement of the tool from the retracted to the operative position when the advancing means begins to move the workpiece lengthwise. This insures that the cutting edge or edges of the orbiting tool engage a workpiece only while the workpiece is in motion.
  • FIGURE is a fragmentary partly diagrammatic and partly vertical sectional view of a shaving machine which embodies the invention.
  • the drawing illustrates a portion of a shaving machine for elongated rod-like workpieces 18.
  • the workpieces are fed lengthwise in the direction indicated by an arrow A by an advancing mechanism, which includes two spaced-apart sets of rolls 2 and 5.
  • the upper rolls 2 are driven by a gear train 2a which receives motion from a prime mover 3 (e.g., a variable-speed hydraulic motor).
  • a prime mover 4 which may be identical with the prime mover 5 drives a gear train 5a for the upper rolls 5.
  • the lower rolls 2 and 5 are rotated by the workpiece 18 when the latter moves lengthwise.
  • the shaving machine further comprises a hollow shaving head or holder 6 which surrounds a portion of the preferably horizontal path for the workpiece 18 between the rolls 2 and 5 and carries at its forward end one but preferably two or more material removing tools or cutters l.
  • the cutters 1 are equidistant from each other, as considered in the circumferential direction of the holder 6, and are movable radially of the rotating holder 6 by an adjusting unit which includes a shifting ring 7 rotating with and being movable axially of the holder 6, an externally threaded sleeve 8 which is movable axially with but does not share the angular movements of the shifting ring 7, an internally threaded gear 9 which is mounted in the frame of the shaving machine so that it cannot move axially and whose internal threads mesh with the external threads of the sleeve 8, a pinion 10 which meshes with the gear 9, and a transmission 11 whose output shaft drives the pinion 10.
  • the input shaft of the transmission 11 can be driven clock
  • the shifting ring 7 has an internal conical cam face which engages external cam faces on the cutters 1.
  • Each cutter 1 is biased against the cam face of the shifting ring 7 so that, when the latter moves axially, the cutters 1 move radially inwardly or outwardly, depending on the direction of axial movement of the ring 7.
  • the pinion 10 rotates the gear 9 in a first direction
  • the sleeve 8 moves axially in a direction to the right, as viewed in the drawing, and causes the ring 7 to share such axial movement whereby the cutters 1 move radially outwardly to assume predetermined retracted positions in which their cutting edges are disengaged from the workpiece 18.
  • the motor 12 for the transmission 11 of the adjusting unit for the cutters l is connected with the motors 3, 4 for the advancing rolls 2, 5 by conductor means l3, l4 and 15.
  • the conductor 14 contains suitable timedelay relays 16a, 16b and a pulse counter 17 of conventional design.
  • the time-delay relays are preferably adjustable.
  • the prime mover which drives the holder 6 for the cutters l is not shown in the drawing. This holder continues to rotate during short-lasting interruptions in the feed of the workpiece 18.
  • the shaving machine is in use, i.e., that the motors 3 and 4 respectively drive the advancing rolls 2, 5 so that the workpiece l8 and the finished product 18a advance lengthwise (arrow A).
  • the motor 12 is idle and the shifting ring 7 is held in that axial position in which the cutters I assume their operative positions at a predetermined minimum distance from the axis of the workpiece 18. If the motors 3 and 4 are arrested, the parts 2, 2a, 5, 5a of the advancing means for the workpiece 18 and finished product 18a continue to advance the respective rod-like parts in the direction of the arrow A for a predetermined interval of time which depends on the inertia of moving parts of the advancing means.
  • Stoppage of the motors 3 and 4 takes place simultaneously with energization of the time-delay relay which starts the motor 12 with a delay corresponding to the aforementioned interval whereby the motor 12 causes the adjusting unit 7-11 to move the cutters 1 radially outwardly at the exact moment when the workpiece 18 is brought to a halt.
  • the pulse counter 17 serves to arrest the motor 12 after a preselected interval of time which is required by the adjusting unit 7-11 to move the cutters 1 radially outwardly to predetermined retracted positions.
  • the pulse counter 17 arrests the motor 12 at the exact moment when the cutters 1 return to their operative positions.
  • the pulse counter 17 is preferably adjustable so that the operator can select the distance between the the operative and retracted positions of the cutters 1.
  • the time-delay relay 16b is energized to start the motor 12 so that the motor 12 operates the adjusting unit 7-11 for the interval of time which is determined by the pulse counter 17, i.e., the motor 12 is arrested at the exact moment when the cutters l reassume their operative positions at a preselected distance from the axis of the workpiece 18.
  • the relay 16b starts the motors 3 and 4 simultaneously with stoppage of the motor 12 so that the rolls 2, 5 begin to transport the workpiece l8 and finished product 18a (arrow A) as soon as the cutters 1 return to their operative positions.
  • the apparatus which controls the movements of cutters l in directions indicated by doubleheaded arrow B insures that the cutters are disengaged from the workpiece 18 at the exact moment when the lengthwise movement of the workpiece is interrupted (with a predetermined delay following the stoppage of motors 3 and 4) and that the cutters return to their operative positions simultaneously with resumption of lengthwise transport of the workpiece l8 and finished product 18a in the direction of arrow A.
  • the motors 3 and 4 can be arrested automatically (e.g., in response to detection of a malfunction of the shaving machine) or intentionally.
  • the time-delay relay 16a will start the motor 12 with a given delay following the stoppage of motors 3, 4 regardless whether the stoppage of motors 3 and 4 has been initiated by hand or in response to signals from one or more detectors. The same holds true for starting of the motors 3, 4 in response to completion of radial movement of cutters 1 to their operative positions, i.e., it is immaterial whether the motor 12 has been started by had (in response to energization of the relay 16b) or whether the relay 16b has been energized automatically in response to elimination of a malfunction whose detection has resulted in stoppage of the motors 3, 4.
  • the motors 3, 4 can be arrested in automatic response to detection of malfunctioning of one or more machines which treat a workpiece 18 before the latter reaches the shaving machine of the present invention and/or in response to malfunctioning of one or more machines which serve to process the product 18a.
  • Automatic disengagement of orbiting cutters 1 from the workpiece at the exact moment when the workpiece comes to a halt prevents an overheating of the workpiece.
  • Automatic starting of lengthwise movement of the workpiece at the exact moment when the orbiting cutters 1 reassume their operative positions prevents excessive removal of material from the workpiece in response to resumption of movement in the direction of arrow A.
  • relays 16a, 16b and pulse counter 17 forms no part of the present invention.
  • the pulse shaper 17 can be replaced by any other device which is capable of automatically arresting a pneumatic, hydraulic or electric motor after a selected interval of running.
  • the relays 16a, 16b can be replaced by any other suitable time-delay means which can start a first prime mover with a given delay following the stoppage of one or more second prime mover or which can start one or more second prime movers in response to stoppage of the first prime mover.
  • the rolls 2, 5 constitute but one fonn of means which can be used to advance the workpiece 18 and finished product 18a lengthwise.
  • such rolls can be replaced by carriages which transport the parts 18, 18a lengthwise during movement in the direction indicated by the arrow A and move relative to the parts 18, 18a during movement in a direction to the left, as viewed in the drawing.
  • the workpiece 18 can be advanced by a customary reel which serves to collect the product 18a in convoluted form, or by conventional clamping jaws which are moved back and forth in and counter to the direction of the arrow A so as to advance the work while moving in and to reassume a starting position upon completion of movement counter to the direction indicated by this arrow.
  • a combination comprising advancing means operable to feed a rod-like workpiece lengthwise along a predetermined path; a hollow rotary tool holder surrounding a portion of said path; at least one material removing tool mounted in said holder and movable radially thereof between a workpiece-engaging operative position and a retracted position; adjusting means operable to move said tool radially of said holder; first prime mover means for operating said advancing means, said advancing means being arranged to continue by inertia the feeding of a workpiece for a predetermined interval of time following the stoppage of said first prime mover means; second prime mover means for operating said adjusting means; and time-delay means arranged to start said second prime mover means and to thereby effect a movement of said tool from said operative position with a delay corresponding to said interval following the stoppage of said first prime mover means so that said tool leaves said operative position and is disengaged from the workpiece substantially simultaneously with termination of lengthwise movement
  • said first prime mover comprises a plurality of synchronously driven motors.
  • each of said time-delay means is a relay.
  • said advancing means comprises spaced-apart first and second portions and said holder is disposed between said first and second portions.
  • said adjusting means comprises a shifting member which shares the angular movements of said holder and is movable axially of said holder to thereby move the tool radially.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Turning (AREA)
  • Machine Tool Units (AREA)
  • Auxiliary Devices For Machine Tools (AREA)
  • Making Paper Articles (AREA)
  • Accessories And Tools For Shearing Machines (AREA)
  • Milling Processes (AREA)
  • Nonmetal Cutting Devices (AREA)
  • Sewing Machines And Sewing (AREA)
US00340822A 1972-04-28 1973-03-13 Apparatus for moving cutters in machines for shaving metallic rod stock Expired - Lifetime US3817130A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2220984A DE2220984C2 (de) 1972-04-28 1972-04-28 Einrichtung an Schaelmaschinen fuer Stranggut wie beispielsweise Walzdraht

Publications (1)

Publication Number Publication Date
US3817130A true US3817130A (en) 1974-06-18

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ID=5843597

Family Applications (1)

Application Number Title Priority Date Filing Date
US00340822A Expired - Lifetime US3817130A (en) 1972-04-28 1973-03-13 Apparatus for moving cutters in machines for shaving metallic rod stock

Country Status (9)

Country Link
US (1) US3817130A (de)
JP (1) JPS5310709B2 (de)
CA (1) CA986349A (de)
DE (1) DE2220984C2 (de)
ES (1) ES414090A1 (de)
FR (1) FR2181895B1 (de)
GB (1) GB1357869A (de)
IT (1) IT973261B (de)
SU (1) SU564784A3 (de)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2659881A1 (fr) * 1990-03-26 1991-09-27 Esco Sa Unite d'usinage a tete rotative portant des outils pivotants.
US5255581A (en) * 1990-06-16 1993-10-26 Th. Kieserling & Albrecht Gmbh & Co. Peeling machine
US20100162861A1 (en) * 2008-09-15 2010-07-01 Alfred Bartz Peeling device and peeling machine

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5552867Y2 (de) * 1978-05-25 1980-12-08
DE4106277A1 (de) * 1991-02-28 1992-09-03 Hetran Maschinen Vertriebs Gmb Messerkopf, insbesondere fuer schaelmaschinen
CN105880635A (zh) * 2014-08-25 2016-08-24 黄伟津 一种通过车削去除镀铜铁管上的镀铜层的制备方法

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3099929A (en) * 1959-10-30 1963-08-06 Th Calow & Co Bar scalping machine
US3363493A (en) * 1964-08-19 1968-01-16 Kieserling & Albrecht Apparatus for shaving pipes and the like

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3099929A (en) * 1959-10-30 1963-08-06 Th Calow & Co Bar scalping machine
US3363493A (en) * 1964-08-19 1968-01-16 Kieserling & Albrecht Apparatus for shaving pipes and the like

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2659881A1 (fr) * 1990-03-26 1991-09-27 Esco Sa Unite d'usinage a tete rotative portant des outils pivotants.
WO1991014527A1 (fr) * 1990-03-26 1991-10-03 Esco S.A. Unite d'usinage a tete rotative portant des outils pivotants
US5207136A (en) * 1990-03-26 1993-05-04 Esco S.A. Machining unit with rotary head carrying pivoting tools
US5255581A (en) * 1990-06-16 1993-10-26 Th. Kieserling & Albrecht Gmbh & Co. Peeling machine
US20100162861A1 (en) * 2008-09-15 2010-07-01 Alfred Bartz Peeling device and peeling machine

Also Published As

Publication number Publication date
DE2220984A1 (de) 1973-08-23
ES414090A1 (es) 1976-02-01
SU564784A3 (ru) 1977-07-05
DE2220984B1 (de) 1973-08-23
CA986349A (en) 1976-03-30
IT973261B (it) 1974-06-10
JPS4954991A (de) 1974-05-28
FR2181895A1 (de) 1973-12-07
GB1357869A (en) 1974-06-26
JPS5310709B2 (de) 1978-04-15
DE2220984C2 (de) 1974-03-21
FR2181895B1 (de) 1976-05-28

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