US3298255A - Device for automatically adjusting slides or tables or the like - Google Patents

Device for automatically adjusting slides or tables or the like Download PDF

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Publication number
US3298255A
US3298255A US392958A US39295864A US3298255A US 3298255 A US3298255 A US 3298255A US 392958 A US392958 A US 392958A US 39295864 A US39295864 A US 39295864A US 3298255 A US3298255 A US 3298255A
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US
United States
Prior art keywords
drum
rings
support
slides
slide
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
US392958A
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English (en)
Inventor
Pfeiffer Hans Ernst
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.)
ROLMA AG
Original Assignee
ROLMA AG
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 ROLMA AG filed Critical ROLMA AG
Application granted granted Critical
Publication of US3298255A publication Critical patent/US3298255A/en
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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
    • B23Q16/00—Equipment for precise positioning of tool or work into particular locations not otherwise provided for
    • 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
    • Y10T408/16—Cutting by use of rotating axially moving tool with control means energized in response to activator stimulated by condition sensor
    • Y10T408/175—Cutting by use of rotating axially moving tool with control means energized in response to activator stimulated by condition sensor to control relative positioning of Tool 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
    • Y10T408/00—Cutting by use of rotating axially moving tool
    • Y10T408/55—Cutting by use of rotating axially moving tool with work-engaging structure other than Tool or tool-support
    • Y10T408/561—Having tool-opposing, work-engaging surface
    • Y10T408/5617—Laterally adjustable surface
    • 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
    • Y10T82/2572—Attachment

Definitions

  • the invention relates to a device for automatically adjusting slides or tables or the like, more particularly coordinate tables, of machine tools, through the agency of cams determining the position in which the slides or the like are set up.
  • the cams are disposed on the periphery of control drums in driving engagement with the slides or the like.
  • the cams are dis posed on the outer periphery of clamping rings which clamp automatically on the drum.
  • FIGURE 1 is a diagrammatic side elevation of a coordinate table having two control drums
  • FIGURE 2 is a plan view of the table shown in FIG- URE 1;
  • FIGURE 3 is a cross-section through a control drum, the detector and the setting pin;
  • FIGURE 4 is a section taken along the line IVIV of FIGURE 3, and
  • FIGURE 5 is a longitudinal section through a control drum.
  • a WOIk table 3 shown in FIGURES 1 and 2 has in known manner a base 1 on which a cross-slide 2 is mounted in readily movable manner, for instance, by means of anti-friction bearings; an electric motor (not shown) can move the slide 2 in a direction y.
  • the table 3 is so mounted on the slide 2, for instance, via antifriction bearings, as to be movable in a direction x by means of an electric motor (not shown).
  • the slides 2 and 3 can be operated by motor drive units controlled by control switches in a simple control circuit as shown in United States Patent 2,648,237 issued August 11, 1953.
  • each of two steel bands 4a, 4b is secured to the table 3; their other ends are rigidly secured to the cylindrical periphery of a drum 5 which is mounted on the slide 2 and which is connected via a shaft 6 to a control drum Wx.
  • the drum Wx rotates through slightly less than 360 for a movement of the table 3 over the whole of its travel.
  • a drum 7 whose axis is perpendicular to the drum 5.
  • the drum 7 has a cylindrical periphery; secured thereto are the ends of two steel bands 8a, 8b whose other ends are rigidly secured to the base 1. Consequently, when the slide 2 performs the whole of its travel in the y direction, the drum 7 rotates through less than 360.
  • This rotation is transmitted by two face gears 9 to a shaft 10 having a control drum Wy secured to its end.
  • the two drums Wx, Wy are therefore disposed one beside another and have their axes parallel with one another. Special means which do not form part of this invention and which are therefore not described ensure that the movements of the slide 2 and table 3 are transmitted without backlash to the drums Wx, Wy.
  • the two drums Wx, Wy are of basically similar construction, and so only the drum Wx is shown in FIG- URES 3-5.
  • a number of clamping rings 11 are clamped fast to the drum Wx and have sufficient clamping action on their own not to be dislodge on the drum surface by forces produced by the detector elements.
  • the clamping rings 11 each have two inclined surfaces 12 which serve as cams, are disposed exactly 180 opposite one another and form transition surfaces between a raised part 11b and a recessed part 11a of the periphery of the rings 11.
  • a detector 13 detects the periphery of each ring 11 and co-operates with electric switches 14, 15 controlling the motor operating the table 3. All that will be mentioned here is that the table 3 is stopped and secured in the dead correct position whenever apex 13a of the detector 13 is in the centre of the cam 12.
  • a support member 17 which is disposed above and extends along the drum Wx has passages 18 all disposed in the plane E The spacing between the passages corresponds to the spacing between the individual rings 11; as can be seen in FIG- URE 5, in actual practice the spacing is determined by spacer rings.
  • the passages 18 are adapted to receive pins 19 having a wedge-shaped end 20 whose wedge angle is the same as the wedge angle of the slot 1%.
  • the electrical detecting and drive system is first started to bring the table into the position determined by the particular ring 11 concerned, such position being shown in FIGURE 3, whereafter a pin 19 is introduced into the passage 18 and pressed. right home so that the ring 11 is expanded and becomes a loose fit on the drum Wx.
  • the table 3 is then moved into the new position and carefully adjusted, whereafter the pin 19 is removed so that the ring 11 clamps the drum Wx tightly again to memorise the new position of the table.
  • the table can be returned to this new position whenever required by automatic detection.
  • the slide 2 can be controlled by the drum Wy in just the same way.
  • FIGURE 5 A practical form of the drum Wx is shown in FIGURE 5.
  • t-wo clamping rings 11 are disposed below each passage 18 in order that a very large number of clamping rings may be provided for a given length of the drum Wx.
  • the pins 19 have a wedge-shaped portion 20 extending over only half their crossasection so that they can expand either one ring 11 or the other in two positions apart from one another.
  • the support member 17 has two bearings 21 for the drum Wx.
  • one end of the drum is conical and has a head 22 which is secured to the drum Wx by screws 23.
  • the head 22 is formed with a groove 26 engaged by a plate 24 providing axial location of the whole drum Wx.
  • a spring strip 24a which can be loaded by a nut 25 also engages in the groove 26 to enable the drum Wx to be clamped fast with the support member 17.
  • the drum Wx is driven by shaft 6 via a sleeve 27 and collet chuck 28.
  • a cup spring 31 presses the jaws 30 of the chuck 28 against a cylindrical inside surface 29 of the drum Wx and is in turn loaded via a sleeve 32 by a loading screw 33, so that its periphery is increased and it forces the jaws 30 against the surface 29.
  • the device hereinbefore described can provide a neutral movement.
  • the table 3 can be accurately adjusted, either by hand or by means of an optical adjusting system, relatively to the co-ordinates of the first drilling operation once the nut 25 has been tightened and the screw 33 slackened.
  • the drum Wx moves relatively to its drive shaft 6.
  • the screw 33 is re-tightened and the nut 25 slackened. The drum Wx is then correctly positioned relatively to the workpiece.
  • a device for automatically controlling the movement of motor operated cross slides having an electric control switch in a motor control circuit
  • a support rotatable drum means mounted in said support, means drivingly connecting one cross slide to the drum for rotation in said support, a series of split rings clampingly mounted on said drum to rotate therewith, cam projections on each of said rings to actuate the electric control switch during rotation of said drum, a series of guide openings in said support arranged in radial alignment with said rings, a pin selectively mounted in at least one of said openings with its inner end presented to said rings, whereby said drum means may be moved into registry with the split portion of one of said rings and forced inwardly to expand a selected ring and release its clamping action on said drum, said pin also arresting movement of the selected ring While the drum is moved to various positions.
  • each of said rings forms a slot having outwardly and radially inclined surfaces forming a V-shaped through notch and in :which the end of the pin is correspondingly shaped to expand the ring selected and release its gripping action on the drum.
  • the cross slides embodies a slide and a coordinate cross work table slide
  • the drum means comprises a pair of drums
  • the means for drivingly connecting the slides to the drums includes flexible straps for converting sliding movement of the slides to rotational movement of the drums.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Machine Tool Units (AREA)
  • Jigs For Machine Tools (AREA)
US392958A 1963-08-30 1964-08-28 Device for automatically adjusting slides or tables or the like Expired - Lifetime US3298255A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH1079263A CH410586A (de) 1963-08-30 1963-08-30 Vorrichtung zum selbsttätigen Einstellen von Verstellschlitten

Publications (1)

Publication Number Publication Date
US3298255A true US3298255A (en) 1967-01-17

Family

ID=4366910

Family Applications (1)

Application Number Title Priority Date Filing Date
US392958A Expired - Lifetime US3298255A (en) 1963-08-30 1964-08-28 Device for automatically adjusting slides or tables or the like

Country Status (6)

Country Link
US (1) US3298255A (de)
AT (1) AT244118B (de)
CH (1) CH410586A (de)
DE (1) DE1302429C2 (de)
FR (1) FR1405196A (de)
GB (1) GB1043109A (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU4218978A (en) * 1977-12-08 1979-06-14 Wisse J R Van Indexing means

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB142683A (en) * 1919-05-31 1920-05-13 Arthur Smith Improvements appertaining to feed mechanism for lathes and like machine tools
US1514352A (en) * 1921-07-06 1924-11-04 Taylor William Method and means of mounting lenses
US1956419A (en) * 1930-09-08 1934-04-24 Gen Electric Remote control system for radio receiving apparatus and the like
US2519907A (en) * 1946-12-02 1950-08-22 Cutler Hammer Inc Limit switch
US2648237A (en) * 1950-10-12 1953-08-11 Ohg Ceruti S A Universal reaming machine
US2674139A (en) * 1952-01-25 1954-04-06 Acorn Tool & Mfg Inc Spacing table
US2791136A (en) * 1953-07-01 1957-05-07 Smith Corp A O Indexing drum for drill press

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB142683A (en) * 1919-05-31 1920-05-13 Arthur Smith Improvements appertaining to feed mechanism for lathes and like machine tools
US1514352A (en) * 1921-07-06 1924-11-04 Taylor William Method and means of mounting lenses
US1956419A (en) * 1930-09-08 1934-04-24 Gen Electric Remote control system for radio receiving apparatus and the like
US2519907A (en) * 1946-12-02 1950-08-22 Cutler Hammer Inc Limit switch
US2648237A (en) * 1950-10-12 1953-08-11 Ohg Ceruti S A Universal reaming machine
US2674139A (en) * 1952-01-25 1954-04-06 Acorn Tool & Mfg Inc Spacing table
US2791136A (en) * 1953-07-01 1957-05-07 Smith Corp A O Indexing drum for drill press

Also Published As

Publication number Publication date
DE1302429C2 (de) 1974-06-12
DE1302429B (de) 1973-11-29
CH410586A (de) 1966-03-31
FR1405196A (fr) 1965-07-02
AT244118B (de) 1965-12-10
GB1043109A (en) 1966-09-21

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