US2883897A - Rotary or turning arrangements on fashioning machines - Google Patents

Rotary or turning arrangements on fashioning machines Download PDF

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Publication number
US2883897A
US2883897A US479098A US47909854A US2883897A US 2883897 A US2883897 A US 2883897A US 479098 A US479098 A US 479098A US 47909854 A US47909854 A US 47909854A US 2883897 A US2883897 A US 2883897A
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US
United States
Prior art keywords
shaft
arm
tool
rotary
lever
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
US479098A
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English (en)
Inventor
Allemann Hugo
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
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Application granted granted Critical
Publication of US2883897A publication Critical patent/US2883897A/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
    • B23B29/00—Holders for non-rotary cutting tools; Boring bars or boring heads; Accessories for tool holders
    • B23B29/03—Boring heads
    • B23B29/034—Boring heads with tools moving radially, e.g. for making chamfers or undercuttings
    • B23B29/03432—Boring heads with tools moving radially, e.g. for making chamfers or undercuttings radially adjustable during manufacturing
    • B23B29/03489—Adjustment means not specified or not covered by the groups B23B29/03435 - B23B29/03478
    • B23B29/03492—Boring and facing heads
    • G—PHYSICS
    • G04—HOROLOGY
    • G04D—APPARATUS OR TOOLS SPECIALLY DESIGNED FOR MAKING OR MAINTAINING CLOCKS OR WATCHES
    • G04D3/00—Watchmakers' or watch-repairers' machines or tools for working materials
    • G04D3/0002—Watchmakers' or watch-repairers' machines or tools for working materials for mechanical working other than with a lathe
    • G04D3/0053—Watchmakers' or watch-repairers' machines or tools for working materials for mechanical working other than with a lathe for framework components
    • G—PHYSICS
    • G04—HOROLOGY
    • G04D—APPARATUS OR TOOLS SPECIALLY DESIGNED FOR MAKING OR MAINTAINING CLOCKS OR WATCHES
    • G04D3/00—Watchmakers' or watch-repairers' machines or tools for working materials
    • G04D3/02—Lathes, with one or more supports; Burnishing machines, with one or more supports
    • G04D3/0227—Lathes, with one or more supports; Burnishing machines, with one or more supports for the manufacture of special components for clockworks
    • 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
    • Y10T408/83—Tool-support with means to move Tool relative to tool-support
    • Y10T408/85—Tool-support with means to move Tool relative to tool-support to move radially
    • Y10T408/854—Tool-support with means to move Tool relative to tool-support to move radially to move eccentrically mounted Tool
    • Y10T408/855—Tool-support including plural, adjustable sections
    • 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
    • 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

  • This invention relates to a rotary or turning arrangement provided on a fashioning machine and fitted with a rotatable tool holder movable transversely to the axis ofrrotation and adapted to hold a milling and turning tool for working instrument parts of precision used' for instance in watches and the like, and consists in mounting the-tool holder on a ⁇ rocking lever and providing the arrangement with means for controlling the deflection of .the rocking lever and automatically compensating massy action appearing thereon.
  • Fig.' y3 is a fragmentary sectional view of a modified detail of the device of Fig. l; l
  • iFig. 4 a cross section on the line B--B of Fig. 3;
  • Fig. 6 a top view of a modified embodiment of a detail
  • a headstockZ is displaceablymounted in a link guide 3 by making use of a lever the 4 or any other suitable means.
  • Theheadstock 2 carries a-bearing 5, in which one end of a hollow shaft 6v is rotatably disposed, and opposite the bearing an upwardly extending housing 7 with a bearing for the other end of the hollow shaft.
  • a driving element 48 secured tothe Ahollow" shaft 6 serves for rotating the shaft.
  • a U-shaped supporting element 8 is iixedly fastened on element 8 and has one end of an arm 10 iixedly fastened thereto.
  • the free end of the arm 10 serves as holder for arnilling and turning tool 11 in such a way that-the cutting edge can be brought into the axis of rotationof the hollow shaft 6 and can also be moved away therefrom transversely to said axis, i.e. the eccentricity of the cutting edge of the tool may be varied from to maximum.
  • the machine frame 1 is equipped with a holder for non-rotating workpicces 12.
  • a control rod 15 is rotatably arranged, and the end thereof facing the arm 10 is fitted with a pinion 16 the teeth of which are in mesh with those of the toothed segment 14.
  • the arm 10 by way of the pinion 16 and toothed segment 14, is swung out within Vifice certain limits, so that the tool 11 is removed from the axis of rotation transversely thereto.
  • the headstock 2 is provided with a control device by means of which the pinion 16 can be turned by the control rod
  • the end of the control rod 15 remote from the arm 10 serves as a control member cooperating With the control device.
  • the end of the rod 15 has two opposite helical surfaces 17 imparting a corkscrew-like appearance to this end which extends into a guide bushing 18 firmly connected with the end of the hollow shaft 6.
  • a control slide 19 with key 20 and guide groove is non-rotatably provided, so that the bushing 18 and the control slide 19 positively rotate with the hollow shaft 6.
  • two rolls 21 are rotatably mounted which lie against the two helical surfaces 17 of the control member and effect turning of the control rod 15 when the slidev 19 is axially displaced.
  • the control slide 19 can be adjusted axially at will by means of a two-armed lever 22 pivotable about a pin 28 and a rod 23 engaging one end of the lever 22.
  • the other end of the lever 22 forms a fork and is connected by way of pivots 24 to a ring sleeve 25 which is movably secured to the necked-down cylindrical end portion 26v by a fixed collar 27 of control slide 19.
  • the ring sleeve 25 has no axial clearance but sufficient radial play to per-l mit arcuate movement of pivot 24 relative to the pin 28. During such movement, the pin 24 moves ina radial direction relative to cylindrical end portion 26.
  • the position of the pin 28 of the lever 22 is variable in dependence upon the displacements ofthe headstock 2. If the pin 28 were fixed, the slightest movement of the ⁇ headstock 2 would result in a displacement of the control slide 19 and unintentional swinging of the arm 10.
  • the pin 28 is therefore arranged on a slide 29 in a guide of the headstock 2, and any changes of position of the slide 29 are controlled by the longitudinal movements of the headstock 2.
  • a double-armed vof the headstock 2 will be transmitted to the controlr lever 30 and thereby also to the pin 28 of lever 22, so that the pivots 24 on the control slide 19 as well as the slide,
  • the masses of the arm and rotary shaft 9 can be reduced by providing longitudinal bores 40, 41, and the rotary shaft 38 also may have such bores if required ⁇ A further difiiculty exists with respect to the elimination of play between the toothed segment 14 on the one hand and the pinion 16, the regulating means 17 to 21 and the members 22, 23 on the other, which is absolutely necessary for accurate work.
  • an auxiliary mass 43 projecting transversely to the ideal central plane passing through the axis of rotation and the rotary shaft 9 of the arm 10 may be arranged, the action of which during rotation tends to increase the tooth pressure in one direction of rotation of the segment 14 and to compensate for any play in the movable parts.
  • the arrangement shown in Figs. 6, 7 for compensation of play comprises a rst toothed segment 14a non-rotatably secured to the shaft 9a of the rocking and an auxiliary toothed segment 44 freely rotatably disposed on this rotary shaft 9a, the segment 44 possessing a slot 45 in which a compression spring 46 is provided which with one end bears against the wall of the slot and with the other end against a pin 47 pressed into the toothed segment 14a and extending into the slot 45.
  • the pressure exerted by the spring 46 produces a torsional moment acting upon the auxiliary segment 44 and insures close contact with the teeth of the pinion 16.
  • the headstock 2 is firmly connected with the machine frame 1, and the holder of the workpiece 12 is axially displaceably arranged relative to the tool 11.
  • the headstock 2 and the frame 1 may be made in one piece.
  • the control lever 30, the slide 29 and the compression spring 34 may be omitted.
  • the pin 28 of the lever 22 would be fixed on the machine frame.
  • a support mounted on said support for rotation relative thereto about an axis of rotation, said shaft means including concentric inner and outer shaft members; tool carrier means for carrying a tool and mounted on said outer shaft at one end thereof for rotation therewith about said axis of rotation as well as for pivotal movement relative to said outer shaft about a pivot axis which is spaced from the region at which a tool carried by said tool carrier means is attached thereto and which pivot axis s spaced from and parallel to said axis of rotation, said inner shaft member being connected at that end thereof which corresponds to said one end of said outer shaft member to said tool carrier means in such a manner that rotation of said shaft members relative to each other causes pivotal movement of said tool carrier means about said pivot axis and consequently movement of a tool carried by said tool carrier means in a direction transverse to said axis of rotation; and rotating means for rotating said shaft members relative to each other independently of the rotation of said outer shaft member, whereby a tool carried by said tool carrier means may
  • said rotating means include screw means on said inner shaft member in the region of its other end, screw engaging means mating with said screwmeans and carried by said outer shaft member in the region of its other end for rotation therewith but for axial movement relative thereto, and positioning means operatively associated with said screw engaging means for moving the latter axially, whereby said shaft members may be rotated relative to each other, thereby moving transversely a tool carried by said tool carrier means.
  • said positioning means include a pivotally mounted lever. one end of which cooperates with said screw engaging means in such a manner that the latter is moved axially upon pivotal movement of said lever.
  • first toothed element is a gear having an annular rim and wherein said second toothed element is a sector-shaped element having an arcuate rim.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Turning (AREA)
US479098A 1954-01-22 1954-12-31 Rotary or turning arrangements on fashioning machines Expired - Lifetime US2883897A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH2883897X 1954-01-22

Publications (1)

Publication Number Publication Date
US2883897A true US2883897A (en) 1959-04-28

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Family Applications (1)

Application Number Title Priority Date Filing Date
US479098A Expired - Lifetime US2883897A (en) 1954-01-22 1954-12-31 Rotary or turning arrangements on fashioning machines

Country Status (2)

Country Link
US (1) US2883897A (de)
CH (1) CH338676A (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2990730A (en) * 1957-04-24 1961-07-04 Normacem Sa Self-adjusting device for finishing tools
US3079815A (en) * 1963-03-05 Boring head

Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE274728C (de) *
US126522A (en) * 1872-05-07 Improvement in devices for boring spherical seats
US354737A (en) * 1886-12-21 richards
US443931A (en) * 1890-12-30 Bishop oarnan
US485233A (en) * 1892-11-01 William j
US495656A (en) * 1893-04-18 Gerard beekman
US1823461A (en) * 1928-08-22 1931-09-15 Gustav C Monckmeier Bearing cap facer
US2112396A (en) * 1936-04-18 1938-03-29 Bundy Tubing Co Cut-off machine
US2286217A (en) * 1940-11-27 1942-06-16 Ex Cell O Corp Rotary toolhead
GB560268A (en) * 1942-10-31 1944-03-28 Ernest Turner Radius turning tool
US2367555A (en) * 1943-10-26 1945-01-16 Armond M Arney Mechanism to obtain and control motion transverse to axis of rotation
US2583477A (en) * 1948-08-11 1952-01-22 Genevoise Instr Physique Rotary tool carrier for cutting tools

Patent Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE274728C (de) *
US126522A (en) * 1872-05-07 Improvement in devices for boring spherical seats
US354737A (en) * 1886-12-21 richards
US443931A (en) * 1890-12-30 Bishop oarnan
US485233A (en) * 1892-11-01 William j
US495656A (en) * 1893-04-18 Gerard beekman
US1823461A (en) * 1928-08-22 1931-09-15 Gustav C Monckmeier Bearing cap facer
US2112396A (en) * 1936-04-18 1938-03-29 Bundy Tubing Co Cut-off machine
US2286217A (en) * 1940-11-27 1942-06-16 Ex Cell O Corp Rotary toolhead
GB560268A (en) * 1942-10-31 1944-03-28 Ernest Turner Radius turning tool
US2367555A (en) * 1943-10-26 1945-01-16 Armond M Arney Mechanism to obtain and control motion transverse to axis of rotation
US2583477A (en) * 1948-08-11 1952-01-22 Genevoise Instr Physique Rotary tool carrier for cutting tools

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3079815A (en) * 1963-03-05 Boring head
US2990730A (en) * 1957-04-24 1961-07-04 Normacem Sa Self-adjusting device for finishing tools

Also Published As

Publication number Publication date
CH338676A (de) 1959-05-31

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