US1406866A - Milling machine - Google Patents

Milling machine Download PDF

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Publication number
US1406866A
US1406866A US297713A US29771319A US1406866A US 1406866 A US1406866 A US 1406866A US 297713 A US297713 A US 297713A US 29771319 A US29771319 A US 29771319A US 1406866 A US1406866 A US 1406866A
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United States
Prior art keywords
cam
milling
work
carrier
spindle
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Expired - Lifetime
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US297713A
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English (en)
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Horn Guido
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Individual
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Individual
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Priority to DENDAT312206D priority Critical patent/DE312206C/de
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Priority to US297713A priority patent/US1406866A/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q35/00—Control systems or devices for copying directly from a pattern or a master model; Devices for use in copying manually
    • B23Q35/04—Control systems or devices for copying directly from a pattern or a master model; Devices for use in copying manually using a feeler or the like travelling along the outline of the pattern, model or drawing; Feelers, patterns, or models therefor
    • B23Q35/08—Means for transforming movement of the feeler or the like into feed movement of tool or work
    • B23Q35/10—Means for transforming movement of the feeler or the like into feed movement of tool or work mechanically only
    • B23Q35/101—Means for transforming movement of the feeler or the like into feed movement of tool or work mechanically only with a pattern composed of one or more lines used simultaneously for one tool
    • B23Q35/102—Means for transforming movement of the feeler or the like into feed movement of tool or work mechanically only with a pattern composed of one or more lines used simultaneously for one tool of one line
    • B23Q35/103—Means for transforming movement of the feeler or the like into feed movement of tool or work mechanically only with a pattern composed of one or more lines used simultaneously for one tool of one line which turns continuously
    • 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
    • Y10T409/00—Gear cutting, milling, or planing
    • Y10T409/30—Milling
    • Y10T409/30084—Milling with regulation of operation by templet, card, or other replaceable information supply
    • Y10T409/302968—Milling with regulation of operation by templet, card, or other replaceable information supply including means for operation without manual intervention
    • 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
    • Y10T409/00—Gear cutting, milling, or planing
    • Y10T409/30—Milling
    • Y10T409/30084—Milling with regulation of operation by templet, card, or other replaceable information supply
    • Y10T409/302968—Milling with regulation of operation by templet, card, or other replaceable information supply including means for operation without manual intervention
    • Y10T409/303024—Milling with regulation of operation by templet, card, or other replaceable information supply including means for operation without manual intervention including simultaneously usable plural tracers or including tracer adapted to simultaneously use plural templets
    • 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
    • Y10T409/00—Gear cutting, milling, or planing
    • Y10T409/30—Milling
    • Y10T409/30084—Milling with regulation of operation by templet, card, or other replaceable information supply
    • Y10T409/302968—Milling with regulation of operation by templet, card, or other replaceable information supply including means for operation without manual intervention
    • Y10T409/303248—Milling with regulation of operation by templet, card, or other replaceable information supply including means for operation without manual intervention with provision for circumferential relative movement of cutter 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
    • Y10T82/2552—Headstock
    • Y10T82/2554—Speed changing gear
    • Y10T82/2556—Speed change gears for maintaining constant cutting speed

Definitions

  • the lily invention relatesto milling machines and particularly to milling machines designed for producing cams and the like ob- -jects of irregular contour.
  • the ob ect or my present invention is to produce an mproved milling :machine whereby spherical and other copy millin work may be produced by means of-reauily producahle copy cams.
  • the known copy milling machines are designed to transfer the contour'ofa copy cam upon the work, the milling spindle moving either parallel within the same plane or axially, unless the contour of: the work is eventually produced through corresponding movements of the latter.
  • the former method requires very accurate copy cams and is not applicable for any repetition of the same contour upon the same work, nor for milling spherical contours. lVhile those milling machines which are especially designed for producing spherical contours do not employ copy cams. V
  • spherical as well as other cam contours are produced after simple copy cams by means of an oscillating milling tool which produces the desired contours after an evolution method.
  • the essential feature of this evolution 'method consists in the fact that the oscillating milling tool is controlled by means of a simple revolving cam and produces upon t-llSWVOIk the desired contour as the result of the movement of the milling tool and the feed of the work, the latter revolving in a definite relation to the movement or". the milling tool control cam.
  • the milling device according to my invention is mainly designed for such revolving work on which a certain contour occurs more than once within theeflective path of the cam.
  • the axis of the work to be wrought upon is arranged at right angle to the axis of oscillation of the milling spindle; for milling other contours the axis of the work, the axis MILLING MACHINE.
  • Figures 1 to 8 I have shown a machine according to my present invention for producing spherical cam contours, Figure 1 being an elevation, Figure 2 a planview, and Figure 3 a side view of the machine.
  • Figure l represents a milling work such as may be produced by the machine illustrated in Figures 1 to 3, while Figure 5 shows a copy cam suitable for a work shown in Figure l.
  • the milling tool is required to perform an approximately un varying cutting length for a unit time throughout, hence, no feeding speed regulator is required which I have therefore omitted in the construction shown in Figures 1 to 3.
  • such a device is shown in another embodiment 01" my invention illustrated in Figures 6 to 8 inclusive, Figure Gheing an elevation.
  • Figure 7 a side view seen from the left of Figure 6, and Figure 8 a plan view of the main parts of the machine.
  • Figure 9 shows a typical example of awork, and Figures 10 and ll'the milling and feeding cams for the production of such work.
  • the modified embodiment of my invention as shown in. Figures 6 to 8 is screw and slot connection 7.
  • he machine frame 1 is provided with a bed like structure carrying the tracks 1'. It one end of the frame 1 there is mounted the spindle 2 of the circular table 3 which is provided at its circumference with teeth engaging a worm shaft 26 by means of which the feed is communicated to the said table.
  • the tracks 1 is lengthwise movable a divided slide at l.
  • the slide part 4 can ries upon a hollow pivot 6 the oscillation plate 6 with the extension? and the adjust ably mounted guide roller 8 mounted at the end of the latter.
  • the angular position of the extension 7 is rendered adjustable relative to the oscillator 6 by means of a
  • the spindle stock 5 is adjustably mounted upon a track 6 of the oscillation plate 6.
  • the axis of the. milling spindle l3 crosse the axis of oscillation at a right angle; and 'theaxis" of revolution of the work 27 to be wrought upon is likewise disposed at a rightangle to the axis of oscillation.
  • the machine is operated by means of the shaft 10 receiving its driving power over the belt pulley 9.
  • the machine is set into operation the copy cam 15 is caused to revolve owing to the gear connection above described.
  • the circular table 3 revolves also and its ratio of speed with regard to the revolution of the copy cam 15 is determined by the size of the change wheels 21 and 23.
  • the copy cam is required to perform six full revolutions while the work once turned, in order to reproduce the groove contour six times.
  • the contour that can be produced by means of the copy cam The lower end of the shaft 14 15 can be milled into the work as many times during one revolution of the latter as may be desired; all that is necessary isto change the ratio of speed between the copy cam and the work table correspondingly,
  • the oscillation plate 6 rests directly upon the track 1 of the bed 1 which carries the shaftla on which the copy cam 15 is secured.
  • the oscillation plate 6 is operated from an independent gear.
  • the milling tool is actuated from the driving pulley 9 receiving its power from an overhead shaft 9 over a pulley 9 and a belt 9
  • the stepped cone pulley 29 is provided for the operation of the feed.
  • the cone pulley 29 is secured upon a.
  • shaft 18 from which is derived the drive for the copy cam 15 and for the chuck 3 for the work in a similar manner as described with reference to the first embodiment of the invention shown in' Figures l to
  • the shaft '18 is positively connected to the shaft l t by means of a worm gear 17, 16, and to the shaft 21 by means of toothed gear wheels 21, 22, 23.
  • the shaft 24 drives the shaft 2 and the chuck 3 secured thereon by means of a pair of bevel wheels 25, 25, the shaft- 25.and the worm gear 26, 3.
  • the shaft It carries the control cam 30 for the feed adjustment.
  • the latter comprises a countershaft and a pair of pulleys.
  • the cone pulley 3i drives while the cone pulley 32 and the stepped'pulley 33 are driven parts of the gear. means of a lever 35 directly controlled by the cam 30.
  • counter weights which are omitted for the sake of clearness and by means of which the cam actuated parts are kept in contact with the respective cams.
  • the corresponding speed need only be ascertained between the points 1 to 5 of the milling tool path and the feed regulator adjusted accordingly ⁇
  • the feeding speed tends to increase the ascending portion between the points 5 and 6 of the feed control cam operates thelever 35 of the feed regulating gear which is thereby slowed down accordingly. Since the ollecti've curve of the cam, 80 descends rapidly between the points 6 and 7 and ren'iains unchanged up to the point 9, the result is that the speed regulator increases the angular speed of both the work and the copy cam to such an amount that the speed of the milling tool remains constant.
  • the limit of the sizo of the copy cam depends upon the size of the machine A circle is made upon the copy cam plate.
  • This circle may be considered as the basis c rcle and 1s divided into as many parts as the contour to be milled. Intothe latter a basis circle is made from which the dis- Having now described my inventioinwhat' I claim as my invention and desire to secure 1 by Letters Patent of the United States, is
  • Milling machine comprising, in combination, a table for the work to be wrought upon feeding; mechanism for said table, a milling spindle adapted to receive a milling tool, an oscillatory carrier for said millin spindle and adapted to be cam controlle the axis of oscillation of said carrier being; disposed at a right angle to the axis of said spindle, a revoluble cam for said carrier to control its oscillatorymovement, feedin mechanism for said cam, said second namec mechanism operating in timed relation to said first named mechanism, actuating means for said i'nilling"spindle and means in connection with said second'nained mechanism tor alteringt-heratio of speed be tween the feed of said cam and the feed of said table whereby the contour of said cam may be reproduced more than once within the course of the complete. cam contour to be produced upon the work.
  • Milling machine comprising, in combination, a revoluble tahletonthe work to be wrought upon feeding; mechanism "for said table, a milling spindle adapt-ed to receive a milling tool; an oscillatory carrier for said milling spindle and adapted to be (131116011- trolled, the axis of oscillation of said carrier being disposed at a right angle to the axis of said spindle as well as to the axis oi said table,a revoluble earn for said carrier to con trol its oscillatory movement, feeding; mochasaid cam and the feed of said table, whereby the contour of said cam may be reproduced repeatedly within the course ot the complete camcontour tobereproduced upon the work.
  • Milling ma chine comprising, in combination, a table for the): work to be wrought upon, feeding mechanism for said table, a milling spindle adapted to receive a milling tool, anl'oscillatory carrier for said milling spindle and adapted to be cam controlled, the axis of oscillation of said carrier being disposed at a right angle to the axis oi said spindle, a revoluble cam for said carrier to control its oscillatory moven'ient.
  • Milling inaclnne comprising, in combination. a revoluble table for the work to be wrought upon, feeding mechanism for said table, a milling spindle adapted to receive a milling tool, an oscillatory "carrier for said milling spindle and adapted to he cam controlledthe axis of oscillation of said carrier being disposed'at a right angle to the axis of said spindle as well as to the axis oi?
  • said table arevoluble cam for said carrier to control its oscillatory movement, feeding mechanism for said cam, said second named mechanism operating in timed relation to said first named mechanism, actuating means for said -milling spindle, means in connection with said second named mechanism for altering the ratio of speedbetweenthe feed of saidcam andthe feed of said table, whereby the bontour of said cam may be reproduced more than once within the course otthe com plete cam contour to be reproduced upon the work, and means for adjusting theposition of said spindle upon said carrier and rela tive to-the work.
  • Milling machine comprising, in combination, a table for the work to be wrought upon, feeding meehanism'tor said table, an
  • oscillatory carrier extending in opposite directions from its axis of oscillation, a milling spindle adapted to receive a milling tool, said milling spindle being mounted upon one extension ot' said carrier, an adjustal'ile arm at the extension of said carrier that is opposite to said first named extension carrying said milling spindle, said arm being adapted to be cam controlled, a revoluble, cam acting uponsaid arm so as to control the oscillatory movement of said :arrier,the axis of oscillation oitsaid carrier being disposed at a right angle to the axis of said milling spur dle, actuating means torsaid milling spindle, and feeding mechanism for said cam.
  • Milling machine comprising,in combination, a table for the .work to be wrought upon, feeding mechanism tor said table, an oscillatory carrier extending in opposite directions from its axis of oscillation, amilling spindle adapted to receive a milling tool, said milling spindle being mounted upon one extension of said carrier, anadjusta-ble arm at-the extension of saidearrier that is opposite to said first named extension carrying said millingspindle, anadjustable cam to]- lower at the free end of said arm, a revolnhle cam acting upon said-armso as to control the oscillatory movement of said carrier, the
  • axis of oscillation of said carrier being disposed at a right angle to the axisolsaid milling spindle, acuating means for said milling'spindle, aslide consisting oi. two relatively adjustable sections, one of said sections carrying said oscillatory carrier ,while the second sect-ion carries said revoluble cam, whereby the ratio oi leverage between :the axisof oscillation and the actuating point. of said cam on the one hand and the milling point on the other hand may be altercdand actuating means for said cam.
  • T. lllilling machine comprising, in combination, a. table for the workto be wrought upon, feeding mechanism forsaid table, an oscillatory --carrier extendingin opposite directions from its axis of oscillation, a millingspindle' adapted to receive a milling tool, said milling spindle being mounted'upon one extension of said carrier, anadjust-able ar'mvat the extension of said carrier that is opposite to said firstnamed extension carryinnsaid milling spindle, said arm being adapted to be cam controlled, a revolu-ble cam acting upon said arm'so as to'control the oscillatory movement of said carrier, the axis of oscillation of saidcarrier being disposed at a right angle to'the axis of said milling spindle, actuating means for said milling spindle. and feeding, mechanism for saidcam, saidlast named mechanism operating in timed relation to said firstnamed mechanism.
  • Milling machine comprising, :in combination, a table for the workto be wrought upon, 'iieedingmechanim for said table, an
  • oscillatory carrier extending in opposite directions "trom its axisot' oscillation
  • a milling spindle adapted to receive a milling tool, saidmilling spindle being mounted upon one extension of saidcarrier
  • an adjustable arm atthe extension of said carrier that is opposite to' said first named extension carrying said milling spindle
  • an adjustable cam itollower at the free end of said arm
  • a revoluble cam acting upon said armso :as to controlithe oscillatorymovement of said can rier, the axis of oscillation of said carrier belng disposed at a right angle to the axis of said milling splndl'e
  • actuating means for said milling spindle a slide consisting of two relatively adjustable sections, one of said sections carrying said oscillatory carrier while the second section carries said revoluble cam, whereby the ratio of leverage between the axis of oscillation and the actuating pointof said cam on the one hand and the milling point on the other hand may be
  • Milling machine comprising, in combination, a table for the work to be wrought upon, feeding mechanism for said table, an oscillatory carrier extending inopposite directions from its axis of oscillation, a milling spindle adapted to receive a milling tool, said milling spindle being mounted upon one extension of said carrier, an adjustable arm at the extension of said carrier that is opposite to said'first named extension carrying said milling spindle, said arm being adapted to be cam controlled, a revoluble cam acting upon said arm so as to control the oscillatory movement of said carrier, the axis of oscillation of said carrier being disposed at a right angle to the axis of said milling spindle, actuating means for said milling spindle, feedingmechanism for said cam, said last named mechanism operating.
  • Milling machine comprising, in combinatioma table for the work to be wrought upon. feeding mechanism for said table, an
  • oscillatory carrier extending in opposite directions from its axis of oscillation
  • a mill ing spindle adapted to receive a milling tool, said milling being mounted upon one extension of said carrier, an adjustable arm at the extension of said carrier that is opposite to said first named extension carrying said milling spindle.
  • an adjustable cam follower at the free end of said arm.
  • a revoluhle cam acting upon said arm so as to control the oscillatory movement of said carrier.
  • the axis of oscillation of said carrier being disposed at a right angle to the axis of said milling spindle.
  • actuatlng meansfor said nnlhng spindle, a slide consisting of two relatively adjustable sections one ofv of said cam on the one handand the milling point on the other hand may be altered,
  • Milling machine comprising, in combination, a device for holding the work tobe wrought upon, feeding mechanism for said device, a milling device, an oscillatory carrier for said milling device and adapted to be cam controlled, at revoluhle cam for said carrier to control its oscillatory move- .ment, actuating mechanism for said milling device, feeding mechanism for said cam, and a speed regulating device operatively connected with both said first named feeding mechanism andsaid last named feeding mechanism, whereby the feed of the work and the feed of said cam is automatically regulated in accordance to the milling work to be performed.
  • Milling machine comprising, in con bination, a device for holding the work to be wrought upon, feeding mechanism for said device, a milling device, an oscillatory carrier for said milling device and adapted to be cam controlled, a revoluble cam for ing mechanism and said last named feeding mechanism and comprising a controlling cam mounted concentrically with said first named cam and so as to participate of the revolving movement of the latter, wherelrv the feed of the work and the feed of said cam is automatically regulated in accordance to the milling work to be performed.
  • Milling machine comprising, in com-- bination, a device for holding the work to he wrought upon, feeding mechanism for said device, a milling device. an oscillatory carrier for said milling device and extending in opposite directions from the axis of oscillation, said milling device being mounted upon one extension of saidv carrier, an adjustable arm at the carrier extension that is opposite to said first named extension, said arm being adapted to be cam con trolled, a revoluhle cam acting upon said arm so as to control the oscillatory movements of said carrier, actuatn'ig means for said milling device, feeding mechanism for said cam, and a cam controlled speed regulator operatlvely connected with both said first named feeding mechanism for the work and said last named feeding nlecha msm for said revoluble cam, the controlling said device, a milling device, an oscillatory carrierfor said milling device and adapted to be cam controlled, a rev-oluble cam" for said carrier to controlits oscillatory-movement, actuating means for
  • Milling machine comprising, incom bination, a device for holding the work to be wrought upon, feeding mechanism for said deiice, a. milling device, an oscillatory carrier for said milling device and extending in opposite directions from the axis of oscillation, said milling device being mounted upon one extension of said carrier. an adjustable arm at the carrier extension that is opposite to said first named extension,
  • said arm being adapted to be cam controlled, are voluhle cam acting upon said arm so as to controlthe oscillatory movein the revolving movements of the latter,
  • Milling machine comprising, in combination, a device for holding the work to be wrought upon, feeding mechanism for said device, a millingdevice comprising a milling spindle of two positively connected spindle parts disposed at a right angle to each other, an oscillatory carrier for-said milling device and adapted to be cam controlled, a, revoluble cam for said carrier-to control its oscillatory movement, actuating mechanism for'said .inilling device. feeding mechanism for said cam, and a speed regulatoUIno HORN.

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  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Mechanical Engineering (AREA)
  • Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)
  • Milling, Drilling, And Turning Of Wood (AREA)
  • Milling Processes (AREA)
US297713A 1919-05-16 1919-05-16 Milling machine Expired - Lifetime US1406866A (en)

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US297713A US1406866A (en) 1919-05-16 1919-05-16 Milling machine

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2415801A (en) * 1939-01-06 1947-02-11 Kearney & Trecker Corp Pattern controlled machine tool
US2524091A (en) * 1944-01-29 1950-10-03 Zimmermann Max Kurt Von Universal screw propeller generator
US2585920A (en) * 1948-10-21 1952-02-19 Thompson Prod Inc Impeller trough milling machine and method
US3437007A (en) * 1965-10-22 1969-04-08 Alfred Schmermund Control arrangements for automatic cutting machines

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1012142B (de) * 1952-08-28 1957-07-11 Goetzewerke Steuervorrichtung fuer das Herstellen unrunder Werkstuecke im Kopierverfahren

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2415801A (en) * 1939-01-06 1947-02-11 Kearney & Trecker Corp Pattern controlled machine tool
US2524091A (en) * 1944-01-29 1950-10-03 Zimmermann Max Kurt Von Universal screw propeller generator
US2585920A (en) * 1948-10-21 1952-02-19 Thompson Prod Inc Impeller trough milling machine and method
US3437007A (en) * 1965-10-22 1969-04-08 Alfred Schmermund Control arrangements for automatic cutting machines

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