US2111681A - Machine tool - Google Patents

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Publication number
US2111681A
US2111681A US119361A US11936137A US2111681A US 2111681 A US2111681 A US 2111681A US 119361 A US119361 A US 119361A US 11936137 A US11936137 A US 11936137A US 2111681 A US2111681 A US 2111681A
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United States
Prior art keywords
lever
slide
counterweight
weight
machine tool
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Expired - Lifetime
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US119361A
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Turrettini Fernand
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FIRM GENEVOISE D'INSTRUMENTS DE PHYSIQUE Ste
FIRM SOC GENEVOISE D INSTR DE
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FIRM SOC GENEVOISE D INSTR DE
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    • 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
    • B23Q11/00—Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
    • B23Q11/001—Arrangements compensating weight or flexion on parts of the machine
    • B23Q11/0017—Arrangements compensating weight or flexion on parts of the machine compensating the weight of vertically moving elements, e.g. by balancing liftable machine parts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B47/00—Constructional features of components specially designed for boring or drilling machines; Accessories therefor
    • B23B47/26—Liftable or lowerable drill heads or headstocks; Balancing arrangements 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
    • Y10T408/00—Cutting by use of rotating axially moving tool
    • Y10T408/91—Machine frame
    • Y10T408/92—Machine frame with counterweight mechanism

Definitions

  • the present invention relates to machine tools and particularly to drilling, boring, milling and like machine tools of the type having a slide or carriage movable along a horizontal guideway 5 and carrying a vertically movable part, such as for example a rotatable tcol spindle.
  • a vertically movable part such as for example a rotatable tcol spindle.
  • Such arrangements may be used on radial drilling Inachines, on vertical milling machines or on jigbo-ring machines of the portable type.
  • the object of the invention is to utilize the weight of the counterweight to partially relieve the horizontal guideway from the weight oi the movable parts.
  • the counterweight is carried by a lever pivotally connected to the horizontally movable slide or carriage and bearing on one or several rollers capable of rolling on a way provided along the beam carrying the horizontal slide, the reaction of the counterweight on the pivot of the lever acting to relieve the horizontal guideway from a partY at least of the Weight of the horizontally movable slide.
  • Figure 1 is a fragmentary vertical section of a boring machine embodying the subject of the invention.
  • Figure 2 is a horizontal section along the line 2 2 of Fig. 1.
  • Figures 3 and Ll are similar vertical and horizontal sections, respectively, of a modification of the invention.
  • the represented machine comprises a boring spindle I mounted in a quill 2, the weight of these two parts being sustained by a counterweight 3 attached to the quill 2 by means of a chain i.
  • This chain passes over two pulleys 'I and 8, the iirst one being journalled concentrically to the articulation I of a lever 9, and the second being carried by the free end of the lever 9;
  • the pulley 'I could however be disposed otherwise.
  • the articulation I0 of the lever is carriedby the horizontally movable spindle head I6.
  • the lever 9 carries a roller I I which rolls on a raceway I2 provided along a crossbeam I3 on which is formed the horizontal guideway I4 carrying the slide I5 and the spindle head I6.
  • this lever could bear on an intermediate member which would carry one or several rollers moving on the way I2.
  • the lever 9 is supl5 ported in a carriage having a cradle-shaped Y member Il and two downwardly extending flaps I3 which carry two rollers I9 movable along the raceway I2 of the cross beam I3.
  • a crossbeam having a horizontal guideway and a slide movable therealong, oi a vertically movable member carried by said slide, a counterweight adapted to balance the weight of said vertically movable member, a suspension member connecting the counterweight to said verticallymovable member, a lever having one end hingedly connected to said horizontally movable slide, the other end of the lever supporting the suspension member of said counterweight, and a roller supporting said lever at a point intermediate the ends thereof, said crossbeam being provided with a surface forming a raceway for said roller, whereby the reactionof the counterweight on the hinge connection of the lever will relieve the horizontal guideway from a part at least of the weight of said horizontally movable slide.
  • a crossbeam having a horizontal guideway and a slide movable therealong, of a vertically movable member carried by said slide, a counterweight adapted to balance the weight of said vertically movable member, a suspension member connecting the counterweight to said vertically movable member, a lever having one end hingedly connected to said slide, a pulley carried by said slide and having its axis of rotation coinciding with the axis of the hinge connection of said lever, a second pulley carried by the other free end of the lever, said suspension member passing over said two pulleys whereby said free end of the lever supports the weight of said counterweight, and a roller supporting said lever intermediate the two ends thereof, said crossbeam 56 being provided with a surface forming a raceway for said roller, whereby the reaction of the counterweight on the hinge connection of the lever will relieve the horizontal guideway from a part at least of the weight of said horizontally movable slide.
  • a crossbeam having a horizontal guideway and a slide movable therealong, of a vertically movable member carried by said slide, a counterweight adapted to balance the weight of said vertically movable member, a suspension member connecting the counterweight to said vertically movable member, a lever having one end hingedly connected to said horizontally movable slide, the other end of said lever supporting the suspension member of said counterweight, a carriage supporting said lever intermediate the two ends thereof, said carriage having rollers, and said crossbeam being provided with a surface forming a raceway for said rollers.
  • a crossbeam having a horizontal guideway and a slide movable thercalong, of a vertically movable member carried by said slide, a counterweight adapted to balance the Weight of said vertically movable member, a suspension member connecting the counterweight to said vertically movable member, a lever having one end hingedly connected to said horizontally movable slide, the other end of the levell being free and extending rearwardly of the cross beam, a pulley carried by said slide and having its axis coinciding with the axis of the hinge of the lever, a second pulley carried by the free end of the lever,said suspension member passing over the two pulleys whereby the Weight of said counterweight acts on the free end of said lever, a carriage supporting the lever intermediate the two ends of the lever, said carriage having rollers, and said crossbeam being provided with a surface forming a raceway for the rollers.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Drilling And Boring (AREA)
  • Manipulator (AREA)
  • Machine Tool Units (AREA)

Description

. l ch 22,' 1938., F. TURRETTINI ZLS MACHINE To`oL Filed Jan. 6, 1937 2 Sheets-Sheet l March 22, 193s. ETURRETN f www y MACHINE TOOL Filed Jan. 6,'1937 2 sheets-sheet 2 Patented Mar. 22, 19738 MACHINE TOOL Fernand Turrettini, Bellevue-Geneva, Switzerland, assigner to firm Societe Genevoise D-Instruments de Physique, Geneva, Switzerland, a,
iirm of Switzerland Alppiication January 6,
1937, Serial N0. 119,361
In Switzerland JanuaryV 28, 1936 4 Claims.
The present invention relates to machine tools and particularly to drilling, boring, milling and like machine tools of the type having a slide or carriage movable along a horizontal guideway 5 and carrying a vertically movable part, such as for example a rotatable tcol spindle. Such arrangements may be used on radial drilling Inachines, on vertical milling machines or on jigbo-ring machines of the portable type.
When the vertically movable parts on such machines have large dimensions, they are usually counterbalanced by a weight suspended on a chain and disposed behind the horizontal cross beam along which moves the slide. In this case the horizontal guideway has to bear the weight of the vertically movable spindle, of the slide, and of the counterweight. This considerable weight acting on the horizontal guideway is prejudicial for the easy movability of the slide 20 and causes increased wear of the guideway.
The object of the invention is to utilize the weight of the counterweight to partially relieve the horizontal guideway from the weight oi the movable parts.
According to the invention the counterweight is carried by a lever pivotally connected to the horizontally movable slide or carriage and bearing on one or several rollers capable of rolling on a way provided along the beam carrying the horizontal slide, the reaction of the counterweight on the pivot of the lever acting to relieve the horizontal guideway from a partY at least of the Weight of the horizontally movable slide.
The accompanying drawings illustrate by way of example a form of construction of the invention and a modioation thereof.
Figure 1 is a fragmentary vertical section of a boring machine embodying the subject of the invention.
Figure 2 is a horizontal section along the line 2 2 of Fig. 1.
Figures 3 and Llare similar vertical and horizontal sections, respectively, of a modification of the invention.
The represented machine comprises a boring spindle I mounted in a quill 2, the weight of these two parts being sustained by a counterweight 3 attached to the quill 2 by means of a chain i. This chain passes over two pulleys 'I and 8, the iirst one being journalled concentrically to the articulation I of a lever 9, and the second being carried by the free end of the lever 9; The pulley 'I could however be disposed otherwise. The articulation I0 of the lever is carriedby the horizontally movable spindle head I6.
The lever 9 carries a roller I I which rolls on a raceway I2 provided along a crossbeam I3 on which is formed the horizontal guideway I4 carrying the slide I5 and the spindle head I6.
When the ratio of the distances between the 5 axis I0 and the roller II, and between this roller and the pulley 8 is suitably selected, a force F will be developed at the point I0 which will balance the weight of the slide I5 with its spindle head I6. Y
Instead of mounting the roller II on the lever V9, this lever could bear on an intermediate member which would carry one or several rollers moving on the way I2.
As shown in Figs. 3 and 4, the lever 9 is supl5 ported in a carriage having a cradle-shaped Y member Il and two downwardly extending flaps I3 which carry two rollers I9 movable along the raceway I2 of the cross beam I3.
I claim:-
l. In a machine tool the combination with a crossbeam having a horizontal guideway and a slide movable therealong, oi a vertically movable member carried by said slide, a counterweight adapted to balance the weight of said vertically movable member, a suspension member connecting the counterweight to said verticallymovable member, a lever having one end hingedly connected to said horizontally movable slide, the other end of the lever supporting the suspension member of said counterweight, and a roller supporting said lever at a point intermediate the ends thereof, said crossbeam being provided with a surface forming a raceway for said roller, whereby the reactionof the counterweight on the hinge connection of the lever will relieve the horizontal guideway from a part at least of the weight of said horizontally movable slide.
2. In a machine tool, the combination with a crossbeam having a horizontal guideway and a slide movable therealong, of a vertically movable member carried by said slide, a counterweight adapted to balance the weight of said vertically movable member, a suspension member connecting the counterweight to said vertically movable member, a lever having one end hingedly connected to said slide, a pulley carried by said slide and having its axis of rotation coinciding with the axis of the hinge connection of said lever, a second pulley carried by the other free end of the lever, said suspension member passing over said two pulleys whereby said free end of the lever supports the weight of said counterweight, and a roller supporting said lever intermediate the two ends thereof, said crossbeam 56 being provided with a surface forming a raceway for said roller, whereby the reaction of the counterweight on the hinge connection of the lever will relieve the horizontal guideway from a part at least of the weight of said horizontally movable slide.
3. In a machine tool, the combination with a crossbeam having a horizontal guideway and a slide movable therealong, of a vertically movable member carried by said slide, a counterweight adapted to balance the weight of said vertically movable member, a suspension member connecting the counterweight to said vertically movable member, a lever having one end hingedly connected to said horizontally movable slide, the other end of said lever supporting the suspension member of said counterweight, a carriage supporting said lever intermediate the two ends thereof, said carriage having rollers, and said crossbeam being provided with a surface forming a raceway for said rollers.
4. In a machine tool, the combination with a crossbeam having a horizontal guideway and a slide movable thercalong, of a vertically movable member carried by said slide, a counterweight adapted to balance the Weight of said vertically movable member, a suspension member connecting the counterweight to said vertically movable member, a lever having one end hingedly connected to said horizontally movable slide, the other end of the levell being free and extending rearwardly of the cross beam, a pulley carried by said slide and having its axis coinciding with the axis of the hinge of the lever, a second pulley carried by the free end of the lever,said suspension member passing over the two pulleys whereby the Weight of said counterweight acts on the free end of said lever, a carriage supporting the lever intermediate the two ends of the lever, said carriage having rollers, and said crossbeam being provided with a surface forming a raceway for the rollers.
FERNAND TURRETTINI.
US119361A 1936-01-28 1937-01-06 Machine tool Expired - Lifetime US2111681A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH464633X 1936-01-28

Publications (1)

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US2111681A true US2111681A (en) 1938-03-22

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US119361A Expired - Lifetime US2111681A (en) 1936-01-28 1937-01-06 Machine tool

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US (1) US2111681A (en)
CH (1) CH188087A (en)
DE (1) DE653396C (en)
FR (1) FR814671A (en)
GB (1) GB464633A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2421459A (en) * 1942-10-17 1947-06-03 Newman M Marsilius Hand miller
US2696763A (en) * 1950-12-15 1954-12-14 Giddings & Lewis Counterbalancing mechanism for machine tools

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE941450C (en) * 1951-04-11 1956-04-12 F A M A Fabbrica Apparecchi Ma Device for adjusting the cutting thickness on horizontal gates
DE1040570B (en) * 1953-06-18 1958-10-09 Siemens Ag Weight-relieving, flexible support of steam turbine parts
CN103670270B (en) * 2013-11-07 2015-09-02 瑞安市瑞志机械有限公司 The balancing counterweight mechanism of equipment attacked by minor diameter hole drill

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2421459A (en) * 1942-10-17 1947-06-03 Newman M Marsilius Hand miller
US2696763A (en) * 1950-12-15 1954-12-14 Giddings & Lewis Counterbalancing mechanism for machine tools

Also Published As

Publication number Publication date
FR814671A (en) 1937-06-28
CH188087A (en) 1936-12-15
DE653396C (en) 1937-11-23
GB464633A (en) 1937-04-21

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