US2977833A - Copying device for lathes - Google Patents

Copying device for lathes Download PDF

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Publication number
US2977833A
US2977833A US755849A US75584958A US2977833A US 2977833 A US2977833 A US 2977833A US 755849 A US755849 A US 755849A US 75584958 A US75584958 A US 75584958A US 2977833 A US2977833 A US 2977833A
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US
United States
Prior art keywords
templet
slide
support
carrier
axis
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
US755849A
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English (en)
Inventor
Lelan Armand Marcel
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.)
H Ernault Batignolles SA
Original Assignee
H Ernault Batignolles SA
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 H Ernault Batignolles SA filed Critical H Ernault Batignolles SA
Application granted granted Critical
Publication of US2977833A publication Critical patent/US2977833A/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
    • 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
    • B23Q35/42—Patterns; Masters models
    • B23Q35/46—Supporting devices therefor
    • 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
    • Y10T82/14—Axial pattern
    • Y10T82/141—Axial pattern having transverse tool and templet guide

Definitions

  • the object of the present invention is to provide a copying device for machinetoolswhich overcomes these disadvantages and which provides a transverse movable support device for the templet which ensures high precision in the control of the displacements of the templet.
  • the invention thus provides in a copying device for machine tools, such as lathes, having a work spindle and including a longitudinally movable carriage, a transverse slide, a templet carrier for supporting a templet parallel to said spindle and coupled to the slide for transverse movement in unison therewith, a pivoted support for the carrier defining swinging movement thereof with a radius substantially equal to the maximum vertical dimension of the machine about a'first axis parallel to the spindle, means locking the carrier on the support against movement longitudinally of the machine, and means pivotally coupling the carrier to the slide about a second axis constantly parallel to said spindle and first axis and permitting longitudinal movement of said slide relative to said carrier, whereby said carrier templet is held parallel to said two axes irrespective ofthe positions of said slide and carrier.
  • Figure 1 is a part sectional view of a lathe showing the profile of the support of the templet according to one embodiment of the invention
  • FIG. 1 illustrates diagrammatically the operation of the support according to Figure 1;
  • Figure 3 is a view similar to Figure 1 of another embodiment of the invention.
  • FIG 4 illustrates diagrammatically the operation of the support accordingto Figure 3;
  • Figure 5 is a part sectional view of'a still further embodiment of the support of the templet, corresponding to a section on the line VV of Figure 7; a
  • Figure 6 illustrates diagrammatically the operation the embodiment according to Figure 5;
  • Figure 7 is a part plan view of a conventional parallel lathe fitted with an additional copying device according to Figures 5 and 6;
  • Figure 8 is a horizontal part sectional view through the coupling between the templet and the transverse slide on the line VIII-VH1 of Figure 5; l
  • Figure 9 is a rear elevational view showing the general arrangement and the mounting of the support of the templet.
  • the templet 7 is supported on a support 1 pivoted, without play, at its lower end on two bearings Z and 3 (see Figure 9) fixed to the base of a lathe.
  • the upper part of the pivoted support comprises a dovetail portion 4 parallel to the axis of the device and serving for longitudinal adjustment and for the fixing of the tail stocks 5 and 6 of the templet 7.-
  • the pivoted support 1 At the two upper ends of the pivoted support 1 are fixed two arms 8 and 9 (see Figure 7) which serve for fixing an attachment bar 10 which is parallel to the axis of the device.
  • the bar 1i is coupledto a transverse slide 11 ofthe lathe by means of a block 12 which is fixed thereto and provided with vertical slots 13 in which the attachment bar may slide in such a manner as to. permit the templet to follow the transverse movements of the slide 11 without hampering the longitudinal move ment of said slide.
  • an operative, by means of the lever 16 moves the device into working position, that is in the position in which the feeler 15 is in contact with the templet 7.
  • the means .for effecting longitudinal feeder movement of the lathe is then actuated whereupon a transverse movement is imparted to the feeler 15 and consequently the tool 17, this movement corresponding in magnitude to the deviations of the profile of the templet. Adjustment of the diameters is eiiected in the usual way by rotation of a hand operated crank.
  • any transverse movement of the slide 11 will be transmitted to the templet by the above'described attachment device comprising the block 12 and attachment bar 10 integral with templet support.
  • the magnitude of the displacement L of the slide 11 is not always equal to the magnitude of thedisplacement L of the templet, either in'its partial values or as a whole, although the angular displacements a are equal for the reason that it is not possible in practice to make the axis of'the attachment bar coincide with the axis of the templet.
  • the attachment block 12 is provided with a slot 13 inclined at an 3 of the support 1 with respect to the vertical, the unavoidable differences of displacement L and L are satisfactorily compensated.
  • the templet support which in the preceding embodiments consists of a one-piece support, consists of two parts articulated to one another.
  • the support proper. 18 comprises a dovetail portion 4a ( Figure '5) for the attachment of the tail stocks 5 and 6. and an attachment bar fixed to the support 18 by the arms 8 and 9 which are provided at their ends with bearings 8a and 9a in which the ends of the bar 10 are mounted, thus permitting pivotal movement of the support.
  • the attachment of the said bar 10 to the slide is different from that according to the previously described embodiments.
  • a block 19, corresponding to the block 12 or 12 in the previous embodiments, carries four rollers 20, 20a, 21 and 21a.
  • the rollers 20, 20a are provided with a circumferential V-groove and serve for guiding the bar 10.
  • the rollers 27., 21a are cylindrical and serve to hold the bar 10 against the rollers 20, 20a in such a manner that said bar 10 slides, without radial play, in the block 19.
  • the support 18 rests on the other hand at its two lower ends on two bearings 22 and 23 serving for the articulation of the pivotal support 24 in the same manner as the support 1 above described.
  • a copying device for machine tools having a work spindle and including a longitudinally movable carriage, a transverse slide on the carriage, a templet carrier for supporting a templet parallel to said spindle and coupled to the slide for transverse movement in unison therewith, a pivoted support for the carrier the length of which is such that at its point of coupling with said carrier there is an infinitesimal difference between the are described and its chord when the support is pivoted about a first axis parallel to said spindle, means locking the carrier on the support against movement longitudinally of the machine, and means pivotally coupling the carrier to the slide about a second axis constantly parallel to said spindle and first axis and permitting longitudinal movement of said slide relative to said carrier, whereby said carrier templet is held parallel to said two axes irrespective of the positions of said slide and carrier.
  • a copying device as in claim 1 wherein the coupling means comprise a bar on said carrier extending parallel to said two axes and a slot on said slide embracing said bar.
  • a copying device for machine tools having a work spindle and including a transverse slide, a templet carrier, for supporting a templet parallel to said spindle, a machining tool and a templet feeler both mounted, on said slide in mutually fixed relationship during machining of a workpiece, said feeler having an active surface transverse to the direction of movement of said slide with said feeler in tangential contact with said templet, a pivoted support for the carrier, the length of which is such that, at its point of contact between said templet and said feeler, there is, an infinitesimal difference between the arc described audits chord when the support is pivoted about an axis parallel to said spindle, means locking the carrier on the support against movement longitudinally of the machine antl means to position said pivoted support during said machining in respect to said work spindle.
  • a copying device for machine tools comprising in combination: support means for a workpiece defining a copying axis, a carriage movable longitudinally parallel to said copying axis, a slide mounted on said carriage for movement transversely to the copying axis, a machining tool and a templet feeler both mounted on said slide in mutually fixed relationship during machining of a workpiece, a support for a copying templet mounted for swinging motion about an axis parallel and fixed with respect to said copying axis, a copying templet mounted on said support with its peripheral surface positioned to contact said feeler, said feeler having an active surface transverse to the direction of movement of said slide with said feeler in tangential contact with said templet, and an abutment in fixed relationship with respect to said workpiece supporting means engaging a portion of said templet support to maintain said templet in predetermined position relative to said copying axis.
  • a copying device as in claim 2 comprising a pair of grooved rollers in the slot on one side of the bar and a pair of cylindrical rollers in the slot on the other side of the bar, maintaining strict alignment of the slide with respect to the longitudinal axis of the bar.
  • a copying device as in claim 1 further comprising a pivotal connection between the templet carrier and the pivoted support for the carrier, thereby to define straight line movement of the templet concurrently with arcuate movement of the pivotal connection between the carrier and support.

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  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Mechanical Engineering (AREA)
  • Turning (AREA)
  • Machine Tool Copy Controls (AREA)
US755849A 1953-09-11 1958-08-15 Copying device for lathes Expired - Lifetime US2977833A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR961143X 1953-09-11

Publications (1)

Publication Number Publication Date
US2977833A true US2977833A (en) 1961-04-04

Family

ID=9495887

Family Applications (1)

Application Number Title Priority Date Filing Date
US755849A Expired - Lifetime US2977833A (en) 1953-09-11 1958-08-15 Copying device for lathes

Country Status (6)

Country Link
US (1) US2977833A (de)
BE (1) BE531544A (de)
CH (1) CH326251A (de)
DE (1) DE961143C (de)
FR (1) FR64072E (de)
GB (1) GB763126A (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3203286A (en) * 1960-11-24 1965-08-31 Hegenscheidt Kg Wilhelm Underfloor lathe for reconditioning railway vehicle wheels

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB865644A (en) * 1957-07-23 1961-04-19 Ernault Batignolles H Improvements in or relating to templet-controlled machine tools

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1195293A (en) * 1916-08-22 Attachment for lathes
US2609592A (en) * 1950-03-07 1952-09-09 Samuel O Shumaker Work supporting attachment for screw machines and the like
FR1035447A (fr) * 1950-04-27 1953-08-24 Hahn & Kolb Chariot porte-outil pour tour et en particulier chariot-revolver
US2691913A (en) * 1947-03-21 1954-10-19 Leblond Mach Tool Co R K Duplicating attachment for lathes

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2559138A (en) * 1946-06-10 1951-07-03 Leblond Mach Tool Co R K Duplicating attachment for lathes

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1195293A (en) * 1916-08-22 Attachment for lathes
US2691913A (en) * 1947-03-21 1954-10-19 Leblond Mach Tool Co R K Duplicating attachment for lathes
US2609592A (en) * 1950-03-07 1952-09-09 Samuel O Shumaker Work supporting attachment for screw machines and the like
FR1035447A (fr) * 1950-04-27 1953-08-24 Hahn & Kolb Chariot porte-outil pour tour et en particulier chariot-revolver

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3203286A (en) * 1960-11-24 1965-08-31 Hegenscheidt Kg Wilhelm Underfloor lathe for reconditioning railway vehicle wheels

Also Published As

Publication number Publication date
CH326251A (fr) 1957-12-15
BE531544A (de)
GB763126A (en) 1956-12-05
FR64072E (fr) 1955-10-20
DE961143C (de) 1957-04-04

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