US3738184A - Device for controlling the stroke and the travelling speed of at least one of the moving parts of a machine-tool - Google Patents

Device for controlling the stroke and the travelling speed of at least one of the moving parts of a machine-tool Download PDF

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Publication number
US3738184A
US3738184A US00202151A US3738184DA US3738184A US 3738184 A US3738184 A US 3738184A US 00202151 A US00202151 A US 00202151A US 3738184D A US3738184D A US 3738184DA US 3738184 A US3738184 A US 3738184A
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United States
Prior art keywords
shuttle
machine
finger
stroke
travel
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
US00202151A
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English (en)
Inventor
M Matthey
H Imgrund
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Manutar SA
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Manutar SA
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Filing date
Publication date
Application filed by Manutar SA filed Critical Manutar SA
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Publication of US3738184A publication Critical patent/US3738184A/en
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Classifications

    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05G—CONTROL DEVICES OR SYSTEMS INSOFAR AS CHARACTERISED BY MECHANICAL FEATURES ONLY
    • G05G1/00—Controlling members, e.g. knobs or handles; Assemblies or arrangements thereof; Indicating position of controlling members
    • 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
    • B23Q16/00—Equipment for precise positioning of tool or work into particular locations not otherwise provided for
    • 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
    • B23Q5/00—Driving or feeding mechanisms; Control arrangements therefor
    • B23Q5/22—Feeding members carrying tools or work
    • B23Q5/34—Feeding other members supporting tools or work, e.g. saddles, tool-slides, through mechanical transmission
    • B23Q5/36—Feeding other members supporting tools or work, e.g. saddles, tool-slides, through mechanical transmission in which a servomotor forms an essential element
    • 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
    • B23Q5/00—Driving or feeding mechanisms; Control arrangements therefor
    • B23Q5/22—Feeding members carrying tools or work
    • B23Q5/34—Feeding other members supporting tools or work, e.g. saddles, tool-slides, through mechanical transmission
    • B23Q5/38—Feeding other members supporting tools or work, e.g. saddles, tool-slides, through mechanical transmission feeding continuously
    • B23Q5/46—Feeding other members supporting tools or work, e.g. saddles, tool-slides, through mechanical transmission feeding continuously with variable speed ratio
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05G—CONTROL DEVICES OR SYSTEMS INSOFAR AS CHARACTERISED BY MECHANICAL FEATURES ONLY
    • G05G2700/00—Control mechanisms or elements therefor applying a mechanical movement
    • G05G2700/02—Means for regulating or adjusting control mechanisms, e.g. devices for automatic adjustment
    • 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
    • Y10T29/00—Metal working
    • Y10T29/51—Plural diverse manufacturing apparatus including means for metal shaping or assembling
    • Y10T29/518—Carriage stop mechanism
    • 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
    • Y10T74/00—Machine element or mechanism
    • Y10T74/18—Mechanical movements
    • Y10T74/18992—Reciprocating to reciprocating

Definitions

  • ABSTRACT A device for controlling the travel and travelling speed of one of the moving components of a machine-tool. It envisions a displaceable shuttle driven in synchronization with the rotation of the machine spindle and movable longitudinally relative to the machine, and an element having an operating inclined cam face and being adjustably mounted longitudinally and angularly of the shuttle for movement according to shuttle movement, and a finger operatively connected to the moving component of the machine-tool for the driving thereof and being actuated upon contact with the inclined cam face of the element, with the speed of displacement of the finger determining the travelling speed of the moving component and the stroke of the finger determining the stroke of the moving component and with the start of the travel of the moving component and the speed and stroke thereof being determined by the position of the said element and the slope of its cam face and the height of its cam face respectively.
  • the present invention concerns a device for controlling the stroke and the travelling speed of at least one of the moving parts of a machine-tool.
  • This controlling device is characterized by the fact that it comprises a shuttle carrying at least one element provided with an inclined plane.
  • the displacements of the said shuttle are a function of the speed of rotation of the machine spindle.
  • the said element is mounted on the shuttle in an adjustable position.
  • the inclined plane of the said element operates a finger which drives said moving part of the machine so that the speed of displacement of this finger determines the travelling speed of the moving part and the stroke of the finger determines the stroke of said part.
  • the start of the travel of this part, its speed and its stroke are thus determined by the position of the said element with resepct to the slope and the height of its inclined plane.
  • the drawing shows, by way of example, one embodiment of the invention.
  • FIG. 1 is a diagrammatic perspective view of a turretlathe.
  • FIG. 2 is a view of a detail of this lathe, on an enlarged scale
  • FIG. 3 is a sectional view of a detail, also on an enlarged scale.
  • the lathe comprises a frame structure 1 carrying a headstock 2 carrying a rotating spindle of which only the nose 3 has been represented and a longitudinal carriage 4, a transversal carriage 5 and a carriage 6 carrying the revolving-turret 7.
  • the travels and the travelling speeds of these different carriages are determined by a set of elements 8 each provided with an inclined plane, all set up on a shuttle 9 which moves longitudinally along frame 1 of the machine.
  • the shuttle is driven, in its moves, by a guide-screw 10, the rotation of which is synchronized with that of the spindle.
  • the shuttle is guided by a longitudinal rod 11, on which it is slidingly mounted, and by a ruler 12, onto which fits a U-shaped part 9a of the shuttle 9.
  • the elements 8 move, with the longitudinal displacements of the shuttle 9, opposite a set of fingers 13 with which they cooperate.
  • Each of these fingers drives, through the medium of a connecting mechanism schematically represented by 14, one of the carriages of the machine.
  • the longitudinal position of the elements 8 and the slope of their inclined planes can be adjusted on the shuttle 9; these elements are distributed on this shuttle in several lines, each of them corresponding to one finger 13.
  • One particular line can carry several elements, some even overlapping each other,-as in the case of the first line of the present example.
  • the inclined planes of the elements 8 need not necessarily be rectilinear, as in the present example, but can have any appropriate shape, then working as templates.
  • the shuttle 9 is arranged so that it can also carry a set of lugs 15 acting on a battery of micro-switches 16 for controlling, in synchronism with the moving of the carriages, auxiliary functions of the machine.
  • the carrying shuttle 9 can be disconnected from the guide-screw 10 for allowing its quick come-back, said come-back being produced by a counterweight l7 sliding on a slide 18 which is attached to the shuttle 9 by a cable 19.
  • the linking of the shuttle 9 with the guide-screw 10 is ensured by a shoe 20 having a threaded recess meshing with the guide-screw.
  • This shoe 20 is articulated at 21 on the shuttle 9 and is subjected to the action of a return spring 22 which urges it against the guide-screw 10.
  • a fixed stop 23 carried by the shuttle 9 limits the stroke of shoe 20 by means of arm 20a.
  • the guiding rod 11 of the shuttle 9 is mounted in such a way that it can carry out a translation move in a direction parallel to itself following the arrow 24 (FIG. 2). Its translative moves are produced by two knuckle-joints 25 driven by the longitudinal displacements of a double shaft 26-27 driven by a con necting rod 28.
  • the elements 8 also occupy a lower or eclipsed position so that they do not act on the fingers 13 when the shuttle comes back in place; in addition then, the lugs 15 do not act any more on the micro-switches 16.
  • each finger l3 and the element it controls is represented in detail on FIG. 3.
  • the finger 13 operates, through the medium of the connecting mechanism 14, a control valve 29, which distributes a pressurized fluid into one or the other of the two rooms, respectively 30 and 31, of a pilot cylinder which is a part of one of the carriages, for instance carriage 6, which accomodates a fixed piston 32.
  • the fingers 13 do not operate directly the machine carriages, but provide the information necessary for having an external energy source moving them.
  • the pilot cylinder comprising rooms 30 and 31 could be made independent from carriage 6, instead of being dependent as in the example represented, and constitute a driving organ connected to the carriage by appropriate means.
  • the strokes of the moving parts of the machine are a function not only of the height of the inclined planes of the elements 8, but also of the driving transmission ratios of the hydro-mechanical mechanisms 14 connecting these elements to the carriages, said ratios being adjustable.
  • the arrangement shall be such that the direction of rotation of the spindle can be reversed, e.g. for tapping purposes, without having the direction of the translation motion of the shuttle be modified.
  • the present arrangement constitutes a simple means, easy to carry out and inexpensive, for controlling the displacements of the moving parts of a machine.
  • a program device for controlling the initiation of travel and travelling speed and stroke of a moving component of a machine-tool having a rotating spindle comprising in combination:
  • a finger operatively connected to the moving component of the machine-tool for the driving thereof and being actuated upon following contact therewith by the inclined cam face of the element

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Turning (AREA)
US00202151A 1970-12-03 1971-11-26 Device for controlling the stroke and the travelling speed of at least one of the moving parts of a machine-tool Expired - Lifetime US3738184A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH1791670A CH518152A (fr) 1970-12-03 1970-12-03 Dispositif de commande de la course et des vitesses de déplacement d'au moins un organe mobile d'une machine-outil
US20215171A 1971-11-26 1971-11-26

Publications (1)

Publication Number Publication Date
US3738184A true US3738184A (en) 1973-06-12

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US00202151A Expired - Lifetime US3738184A (en) 1970-12-03 1971-11-26 Device for controlling the stroke and the travelling speed of at least one of the moving parts of a machine-tool

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US (1) US3738184A (fr)
CH (1) CH518152A (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5090262A (en) * 1987-06-05 1992-02-25 Alfred Teves Gmbh Lever-type transmission gear

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US855773A (en) * 1906-04-25 1907-06-04 Pratt & Whitney Co Cam.
US971886A (en) * 1906-02-05 1910-10-04 Pratt & Whitney Co Turret-lathe.
US1486348A (en) * 1923-05-10 1924-03-11 Kinder Nelson Roy Adjustable sheave
US2274230A (en) * 1939-11-27 1942-02-24 Bechler Andre Automatic lathe
US2276630A (en) * 1938-10-06 1942-03-17 Richard H Sheppard Fuel injection pump
US2386014A (en) * 1944-05-25 1945-10-02 Jr Louis Paul Takac Adjustable dog stop release for turret lathes
US2491381A (en) * 1942-01-23 1949-12-13 Warner Swasey Co Machine tool
US3020776A (en) * 1960-05-25 1962-02-13 Borg Warner Vacuum refrence control for pressure compensation
US3543903A (en) * 1967-01-07 1970-12-01 Alois Lodige Lifting and lowering conveying device
US3612619A (en) * 1969-02-24 1971-10-12 Henry L Hayes Safety brake apparatus

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US971886A (en) * 1906-02-05 1910-10-04 Pratt & Whitney Co Turret-lathe.
US855773A (en) * 1906-04-25 1907-06-04 Pratt & Whitney Co Cam.
US1486348A (en) * 1923-05-10 1924-03-11 Kinder Nelson Roy Adjustable sheave
US2276630A (en) * 1938-10-06 1942-03-17 Richard H Sheppard Fuel injection pump
US2274230A (en) * 1939-11-27 1942-02-24 Bechler Andre Automatic lathe
US2491381A (en) * 1942-01-23 1949-12-13 Warner Swasey Co Machine tool
US2386014A (en) * 1944-05-25 1945-10-02 Jr Louis Paul Takac Adjustable dog stop release for turret lathes
US3020776A (en) * 1960-05-25 1962-02-13 Borg Warner Vacuum refrence control for pressure compensation
US3543903A (en) * 1967-01-07 1970-12-01 Alois Lodige Lifting and lowering conveying device
US3612619A (en) * 1969-02-24 1971-10-12 Henry L Hayes Safety brake apparatus

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5090262A (en) * 1987-06-05 1992-02-25 Alfred Teves Gmbh Lever-type transmission gear

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Publication number Publication date
CH518152A (fr) 1972-01-31

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