US3670582A - Positioning device - Google Patents

Positioning device Download PDF

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Publication number
US3670582A
US3670582A US86420A US3670582DA US3670582A US 3670582 A US3670582 A US 3670582A US 86420 A US86420 A US 86420A US 3670582D A US3670582D A US 3670582DA US 3670582 A US3670582 A US 3670582A
Authority
US
United States
Prior art keywords
positioning
movement
control
slider
slides
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
US86420A
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English (en)
Inventor
Hans Herose
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.)
ANCIENS ETS T M B J TOBLER
Original Assignee
ANCIENS ETS T M B J TOBLER
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 ANCIENS ETS T M B J TOBLER filed Critical ANCIENS ETS T M B J TOBLER
Application granted granted Critical
Publication of US3670582A publication Critical patent/US3670582A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05G—CONTROL DEVICES OR SYSTEMS INSOFAR AS CHARACTERISED BY MECHANICAL FEATURES ONLY
    • G05G5/00—Means for preventing, limiting or returning the movements of parts of a control mechanism, e.g. locking controlling member
    • G05G5/04—Stops for limiting movement of members, e.g. adjustable stop
    • 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
    • B23Q16/02—Indexing equipment
    • B23Q16/022—Indexing equipment in which only the indexing movement is of importance
    • B23Q16/026—Indexing equipment in which only the indexing movement is of importance by converting a reciprocating or oscillating movement into a rotary indexing movement
    • 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
    • Y10T74/14—Rotary member or shaft indexing, e.g., tool or work turret
    • 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
    • Y10T74/14—Rotary member or shaft indexing, e.g., tool or work turret
    • Y10T74/1494—Locking means
    • 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
    • Y10T74/1856—Reciprocating or oscillating to intermittent unidirectional motion
    • 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
    • Y10T82/2585—Tool rest
    • Y10T82/2589—Quick release tool or holder clamp

Definitions

  • a positioning device comprising a slider acting so as to obtain an alternating rectilinear control movement, means for limit- Nov. 26, 1969 Switzerland ..17564/69 ins said movement to a predetermined travel in one direction or the other while causing said control means to co-operate by Qf filfii members forming an integral part of said slider with position- 58] 2 d of s h 74/88 813 4 ing means adapted to be put in rotation by said members, said positioning means being coupled directly or indirectly to the l 5 6] Rdmnm Cited positioning element proper, said positioning element being moved in rotation in its plane from one angular position to UNITED STATES PATENTS another angular position.
  • the positioning device finds one of its applications in the control of machine-tools. 2,888,843 6/1959 l-lollis ..74/814 2,948,166 8/1960 Purse et al. ..74/813 6 Claims, 6 Drawing Figures F" i l l t r ,1 2l s K 21 2 a 2 -Q 211 212 -23 21 i FATE-"W20 1972 3,670,582
  • the present invention relates to a positioning device in which a rectilinear control movement is converted to a rotary positioning movement, in such manner that, for a certain rectilinear displacement of the control means, by self-locking of the positioning device, this latter is rotated through a clearly defined angle.
  • This positioning action may be continued in a uniform or irregular manner during the rotating movement of the said position device, as a funcu'on of the configuration of the positioning means employed.
  • the positioning device (or divider) according to the invention thus comprises means for obtaining a rectilinear control movement, generally embodied in the form of a slider and comprising means intended to limit this rectilinear movement to a clearly defined travel in either direction, at the same time causing the said means to co-operate with a positioning means generally taking the form of a flat polygonal element with convex angles, fixed on a shaft which is directly or indirectly coupled to the positioning device proper, the said flat element being moved in rotation in its plane from one angular position to another by the action of guides, mounted on the control slider, on the successive edges of the said element having the general shape of a polygon.
  • the positioning device in accordance with the invention is especially characterized in that it is bi-stable and self-locking, and that it essentially comprises a positioning element rotatable in its plane which has the form of a polygon with convex angles, the said element co-acting with driving and locking guides acting on the said element in one or the other of the bi-stable positions.
  • a positioning device of this kind can be advantageously employed as a divider on machine-tools.
  • FIG. lb is a diagrammatic view of the positioning device in a position intermediate between the stable positions
  • FIG. 1c is a diagrammatic view of the positioning device when locked in the other stable position
  • FIG. 2 shows positioning elements in accordance with the invention
  • FIGS.3 and 4 show an example of a divider plate which comprises the various positioning members according to the invention.
  • the positioning device shown in FIGS. 1a to la is constituted by a control element 2 capable of sliding in either direction following the arrow F, between slides 1 fixedly mounted in a frame D and a positioning member 12 fixed on a shaft 11 which rotates in its plane about the axis OO(FIG. 1b) in the direction of the arrow f.
  • the control slide carries guides 21 and 22. Between these guides 21 and 22 is formed a slot 23 which moves with respect to the shaft 11 carrying the positioning element 12, in the direction of operation following the arrows F, or F The slider 2 can be displaced in the direction F, or in the other direction F according to the action applied on the control.
  • FIG. 1a the positioning, device is shown in a first stable position in which the element 12 is locked.
  • the shaft 1 1 is located at one of the extremities of the slot due to a previous operating movement of the slider 2 in the direction of the arrow F (shown in broken lines in FIG. 1a).
  • the arrow F indicates the direction of the locking force.
  • the positioning element 12 is made in the form of a plate having the general shape of an equilateral triangle. Other shapes could be adopted for the positioning element, as will be explained later.
  • This element is fixedly coupled or forms an integral part of the shaft 11, which in turn is in direct or indirect relation to the member to be positioned.
  • the face 121 of the element 12 (having the form of an equilateral triangle) is in contact with the face 211 of the guide 21.
  • the locking force F acting in the opposite direction to the displacement force of the slider 2 the element 12 is locked in its position, together with the member to be positioned (not shown in the drawing).
  • edges of the guides are calculated so that, at the moment of locking (FIGS. 1a and 1c), one of the faces of the positioning element is parallel to one of the edges of the guide, while another face of the positioning element is locked against the internal edge of the guide which is the locking edge.
  • the positioning element has the general shape of an equilateral triangle, as shown in FIGS. 1a, 1b and 1c, in FIG. 1a, the face 123 of the element 12 is parallel to the edge 212 of the guide 21, while the face 121 of the element 12 is locked against the edge 211 of the guide 21.
  • the shaft 1 1 is then located at the left-hand extremity (in FIG. 1a) of a slot 23 formed between the guides 21 and 22 so that these extreme limits are defined by the points T, and T 2 respectively, which represent the points at which the edges 211 and 221 of the guides 21 and 22 are tangential to the semi-circular extremities of the slot 23.
  • the distances between the points T, and T and the points 1 and I points of intersection between the edges 211 and 212 of the guide 21 on the one hand, and 221 and 222 of the guide 22 on the other hand, are chosen in such manner as to obtain the best action for setting the element 12 into rotation from a first position towards the next following angular position, together with the locking of the element 12 in this second angular position.
  • the element 12 has the shape of an equilateral triangle and the distances T I and T, 1 are equal.
  • the edge 123 of the element 12 is parallel to the edge 212 of the guide 21 and separated from this latter by a distance a while this'same edge 123 is parallel to the edge 222 of the guide 22 and is distant from this latter by an amount b in which a b.
  • edge 122 of the element 12 is parallel to the edge 212 of the guide 21 at a distance equal to b in which a is greater than b.
  • the rotation of the shaft 11 is equal to 30 after a movement of the slider 2 corresponding to the length of the slot 23. Then by reversing the direction of the control and causing the slider to act in the direction I (FIG. 1c), the rotation of the shaft 11 continues in the direction of the arrow f and the element 12 will be locked in a third angular position at 30 from the second position and at 60 from the fast position.
  • each control cycle comprising a forward and a return movement of the slider 2 three positions corresponding to a first extreme position of the slider and the other three positions to the second extreme position of the slider, the distance separating the two ewtreme positions being equal to the distance between the centers 0,, O, of the semi-circular extremities of the slot 23.
  • positioning elements other than an equilateral triangle, for example stars with four, five or six regular and identical points (FIG. 2) or again any kind of triangles and in general polygone having convex angles. It will be understood that the guides and the slots are adapted. so as to co-operate each time with the positioning element chosen.
  • the false face-plate divider is mounted on a lathe for example, this false face-plate being intended to permit the machining of the three pivots and the three respectively opposite centers of a tripod cross-head.
  • This mounting is obviously given only by way of example; it would be just as valid for the machining of any other part, the manufacture of which requires it to be presented in several orientations during the course of machining, independently of the rotation of the spindle on which the false face-plate is mounted.
  • FIGS. 3 and 4 there is shown by way of example'a false face-plate divider such as described above, which comprises the various positioning members in accordance with the invention.
  • a hydraulic or pneumatic piston 24 controls the reciprocating movement of the slider 2 in the slides 1 over a distance equal to the distance 0,, 0, between the centers and O, of the semi circular extremities of the slot 23.
  • the positioning or divider element 12 in the example cited has the general form of an equilateral triangle. It can rotate in its plane about the axis normal to its plane and passing through its center constituted by the shaft 1 l of the mandrel 30.
  • one of the slopes 211 or 221 of the guides 21 or 22 of the slider 2 immobilizes the divider element 12 in a strictly accurate indexed position which corresponds to the first orientation of the piece P held by the mandrel 30.
  • the second slope 211 or 221 of the guides 21 or 22 begins by driving the divider element 12 in rotation and at the end of its travel the element is immobilized in a second strictly accurate indexed position corresponding to the second machining orientation of the part P.
  • the divider element 12 has the general shape of an equilateral triangle, and there are thus obtained six successive working positions of the pan P, without it being possible to pass two positions simultaneously. Three of these six positions correspond to an extreme position of the slider 2, while the other three positions correspond to the other extreme position of the slider.
  • the positioner or divider is made irreversible by adopting a sufficient angle between the slopes of each guide 21 and 22, which also facilitates the adoption of a hydraulic or pneumatic control. ln all areas, the control pressure should maintain a force on the corresponding slope for locking in a pre-determined position.
  • the locking may be made still more certain and in order to attenuate the mutual vibration efi'ects during machinizr ig, a second piston 25 is rovided inside the operatin piston and concentric with latter. The movement 0 this piston 25 is carried out in the same direction as that of the operating piston, but against the force of a spring 27 intended to move the piston 25 forward more slowly and out of phase with respect to the piston 24.
  • the piston 25 is provided with a finger 26 on the extremity of its rod, which, at the end of its operation, imprisons the extremity of a slope of a side of the element 12 and thus keeps the element 12 locked against the slope 211 or 221 of the guide 21 or 22 of the slider 2.
  • a positioning device for converting controlled rectilinear movement into a predetermined rotary positioning motion, comprising; a pair of stationary slides in parallel spaced relationship; control element means positioned between said slides for longitudinal reciprocating movement relative thereto; means limiting the movement of said control element means to a predetermined axial distance; rotatable positioning means comprising a polygon-surfaced cam member; shaft means mounting said rotatable positioning means between said stationary slides for rotational movement in the longitudinal plane thereof; said means for limiting movement of said control element means forming a connection with the shaft means mounting said cam member, said cam member being rotated through a predetermined rotational'displacement and locked into stationary relationship in response to linear movement and engagement by said control element.
  • a positioning device as claimed in claim 1, wherein said rotatable positioning means comprises a polygon-surfaced plate cam member having contiguous surface portions formed at acute angles.
  • a false face-plate divider characterized in that it comprises a positioning device comprising a pair of stationary slides, a control slider arranged to move between said slides, a rotatable positioning element mounted on a shaft supported on said slides, a slot guiding the shaft carrying said positioning element between two extreme control positions of said slider, two slides each arranged at one extremity of said slot for putting said positioning element in rotation during the rectilinear control movement of said slider and to lock said element in one or the other of the extreme positions defined by an abutment of the shaft against one extremity or the other of said slot.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Mechanical Engineering (AREA)
  • Machine Tool Positioning Apparatuses (AREA)
  • Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
  • Machine Tool Units (AREA)
US86420A 1969-11-26 1970-11-03 Positioning device Expired - Lifetime US3670582A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH1756469A CH516374A (fr) 1969-11-26 1969-11-26 Dispositif positionneur, notamment pour constituer un faux plateau diviseur

Publications (1)

Publication Number Publication Date
US3670582A true US3670582A (en) 1972-06-20

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ID=4426390

Family Applications (1)

Application Number Title Priority Date Filing Date
US86420A Expired - Lifetime US3670582A (en) 1969-11-26 1970-11-03 Positioning device

Country Status (5)

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US (1) US3670582A (enrdf_load_stackoverflow)
CH (1) CH516374A (enrdf_load_stackoverflow)
DE (1) DE2052500A1 (enrdf_load_stackoverflow)
FR (1) FR2068651B1 (enrdf_load_stackoverflow)
GB (1) GB1305127A (enrdf_load_stackoverflow)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4552046A (en) * 1984-05-25 1985-11-12 General Electric Company Cutting tool
EP0248205A3 (en) * 1986-05-01 1989-07-12 Carboloy Inc. Indexable cutting tool
CN105722637A (zh) * 2013-11-08 2016-06-29 斯奈克玛 更换加工刀片的设备

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH581008A5 (enrdf_load_stackoverflow) * 1974-06-18 1976-10-29 Habib Robert
IT1192813B (it) * 1986-07-04 1988-05-12 Walter Bronzino Mandrino con dispositivo automatico di spostamento angolare a passo del le griffe cosidetto di indexaggio
DE3812389A1 (de) * 1988-04-14 1989-10-26 Heinz Schaefer Universalschalteinheit

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2888843A (en) * 1954-12-07 1959-06-02 Giddings & Lewis Machine tool turret with bidirectional coupling
US2948166A (en) * 1959-06-22 1960-08-09 Universal Oil Prod Co Rotary drive mechanism
US3085452A (en) * 1959-07-08 1963-04-16 Hispano Suiza Sa Indexing table
US3120134A (en) * 1960-11-21 1964-02-04 James C Sweeney Rotary index table
US3466936A (en) * 1966-02-16 1969-09-16 Belge Atel Reunies Controlling device of the rotation of a slow-rotating drum like element

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2888843A (en) * 1954-12-07 1959-06-02 Giddings & Lewis Machine tool turret with bidirectional coupling
US2948166A (en) * 1959-06-22 1960-08-09 Universal Oil Prod Co Rotary drive mechanism
US3085452A (en) * 1959-07-08 1963-04-16 Hispano Suiza Sa Indexing table
US3120134A (en) * 1960-11-21 1964-02-04 James C Sweeney Rotary index table
US3466936A (en) * 1966-02-16 1969-09-16 Belge Atel Reunies Controlling device of the rotation of a slow-rotating drum like element

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4552046A (en) * 1984-05-25 1985-11-12 General Electric Company Cutting tool
EP0248205A3 (en) * 1986-05-01 1989-07-12 Carboloy Inc. Indexable cutting tool
CN105722637A (zh) * 2013-11-08 2016-06-29 斯奈克玛 更换加工刀片的设备

Also Published As

Publication number Publication date
CH516374A (fr) 1971-12-15
DE2052500A1 (de) 1971-06-03
GB1305127A (enrdf_load_stackoverflow) 1973-01-31
FR2068651B1 (enrdf_load_stackoverflow) 1977-01-21
FR2068651A1 (enrdf_load_stackoverflow) 1971-08-27

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