US3685116A - Method and apparatus of mounting and securing a rectilinear element on a support member of a machine - Google Patents

Method and apparatus of mounting and securing a rectilinear element on a support member of a machine Download PDF

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Publication number
US3685116A
US3685116A US89187A US8918770A US3685116A US 3685116 A US3685116 A US 3685116A US 89187 A US89187 A US 89187A US 8918770 A US8918770 A US 8918770A US 3685116 A US3685116 A US 3685116A
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US
United States
Prior art keywords
roller
bedding
groove
tool carrier
support member
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
US89187A
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English (en)
Inventor
Marcel L Neuman
Louis F Colomb
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.)
Individual
Original Assignee
Individual
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
Priority claimed from FR100801A external-priority patent/FR1527022A/fr
Priority claimed from FR112020A external-priority patent/FR1535623A/fr
Priority claimed from FR137577A external-priority patent/FR93933E/fr
Application filed by Individual filed Critical Individual
Application granted granted Critical
Publication of US3685116A publication Critical patent/US3685116A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C29/00—Bearings for parts moving only linearly
    • F16C29/005—Guide rails or tracks for a linear bearing, i.e. adapted for movement of a carriage or bearing body there along
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
    • B23P11/00—Connecting or disconnecting metal parts or objects by metal-working techniques not otherwise provided for 
    • B23P11/005—Connecting or disconnecting metal parts or objects by metal-working techniques not otherwise provided for  by expanding or crimping
    • 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
    • B23Q1/00—Members which are comprised in the general build-up of a form of machine, particularly relatively large fixed members
    • B23Q1/25—Movable or adjustable work or tool supports
    • B23Q1/26—Movable or adjustable work or tool supports characterised by constructional features relating to the co-operation of relatively movable members; Means for preventing relative movement of such members
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C29/00—Bearings for parts moving only linearly
    • F16C29/004—Fixing of a carriage or rail, e.g. rigid mounting to a support structure or a movable part
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C29/00—Bearings for parts moving only linearly
    • F16C29/02—Sliding-contact bearings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C2322/00—Apparatus used in shaping articles
    • F16C2322/39—General buildup of machine tools, e.g. spindles, slides, actuators
    • 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
    • Y10T29/53—Means to assemble or disassemble
    • Y10T29/53709—Overedge assembling 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
    • Y10T29/00—Metal working
    • Y10T29/53—Means to assemble or disassemble
    • Y10T29/53991—Work gripper, anvil, or element

Definitions

  • ABSTRACT An apparatus for securely mounting a rectilinear element on a support member comprising a support member having a trapezoidal section grooved therein and a rectilinear element having a complementary trapezoidal shaped poition'received in the groove, the two trapezoidal shapes being such that when the rectilinear element is inserted in the groove a slight play will exist between the complementary inclined sides of the grooved element and a high pressure is exerted on the inclined edges of the groove to-bed the rectilinear element in the groove.
  • each rack must be mounted on its support member in such a way that its primitive plane is exactly parallel to the guide slideways.
  • a rack rectilinear element forming a groove of complementary section in the support member, the two sections being such that when the rectilinear element is inserted in the groove slight play will exist between the inclined sides of the groove and those of the element, introducing the rectilinear element freely into the groove and exerting a high pressure on the wedge shaped edges of the groove to bed the rectilinear element in the groove.
  • the bedding applies the concealed face of the rectilinear element strongly and uniformly against the bearing face of the groove cut in the support member.
  • the rectilinear element is a guide bar
  • the planeness and parallelism of the sliding or rolling path of the bar depends on-the precision of the machining of the groove and no longer on the manner of fixing.
  • the rectilinear element is a toothed rack
  • its primitive plane is, for the same reason as before, accuratelyparallel to the'sliding or rolling paths of the guide bars.
  • bedding ensures extremely forcethe guide bars and the toothed racks to be considerably reduced by limiting their width to that of the guided must also be very firmly secured, to avoid any risk of movement under the action of the forces to which it is subjected.
  • the rack is located by cylindrical or tapered pins or again by locking clamps at its ends and it is secured by screws.
  • the fixing screws 5 extend perpendicularly to the primitive plane of the teeth to hold the rack tightly against the bearing surface 2 of the support member 3.
  • a main object of the present invention is to remedy the aforesaid drawbacks in the mounting of a rectilinear element, whether this be a guide bar or a toothed rack.
  • a method of mounting a rectilinear element on a support member comprises imparting a trapezoidal section to the members (guide blocks or rollers) and to that of the meshing elements (pinions) and by decreasing their thickness solely to satisfy resistance requirements.
  • the invention moreover covers equipment for carrying out the aforesaid method and which comprises a tool carrier on which is freely mounted at least one bedding roller having two projecting flanges which have a substantially V-shaped profile and which are spaced apart by an amount greater than the free width of the guide bar.
  • the tool carrier cooperates with a pressure roller which precedes the bedding roller.
  • the movable component carrying. the pressure roller is pivotally mounted about an axis of the tool carrier parallel to that of the bedding roller, this component being connected to at least one spring bearing on the tool carrier.
  • the invention also covers a manner of fixing a guide bar and a toothed rack on a support member of a machine and more particularly of a machine tool, whereby the bar and the rack have a trapezoidal section housed in a groove of similar section in the support member and are flanked by two bedding channels.
  • FIG. 1 is a view in section of a conventional method of mounting a rack defining member to a support member
  • FIG. 2 is a view in half section of another known method of mounting a rack defining member to a support member
  • FIGS. 3 and 4 are schematic partial sections showing two phases of the method of the invention for mounting and securing a guide bar
  • FIG. 5 is a similar view to FIGS. 3 and 4 showing the application of the method to the mounting of a toothed rack;
  • FIGS. 6 and 7 are partial longitudinal sections showing one of the end abutment members of the aforesaid bar and rack;
  • FIG. 8 is an elevation in the same plane as that of FIGS. 3 and 4 and showing the bedding equipment
  • FIG. 9 is a section along the line IXIX of FIG. 8;
  • FIG. 10 is a section along the line X-X of FIG. 8 and showing the equipment in rest position;
  • FIG. 11 is a section along the line XI-XI of FIG. 8 and showing the equipment in bedding position, the main elements of this equipment situated behind the sectional plane being defined by the broken lines;
  • FIGS. 12 and 13 are views similar to FIGS. 8 and 11 showing respectively the operation of this equipment for retaining slideways or for toothed racks accessible from below.
  • the guide bar 8 to be mounted contains a groove 10 whose section is also trapezoidal and complementary to that of the bar.
  • Slight lateral play is provided at 11 and 12 between the inclined sides of the bar and those of the groove.
  • this play is preferably between 0.01 and 0.1 mm. and shown exaggerated in FIG. 3 solely to enable the invention to be better understood. This play is intended to make it extremely easy to place the bar 8 in position.
  • the metal forming the edges of the groove 10 at 13 and 14 (FIG. 4) is compressed to cause it to flow towards the sides of the groove. There is thus created a permanent contact pressure of the sides of the groove on those of the bar at the point where there was previously play.
  • the bar is then immobilized and by the effect of the slope of the sides is locked against the bottom of the groove. This imparts to the assembly the same rigidity as would be found in a single piece construction.
  • This embodiment enables the thickness of the rack to be limited to that which is strictly necessary for the resistance of the base of the teeth, i.e., to two or three times the standard. It also enables the real width of the rack to be limited to the width of the teeth and finally enables the thickness of the support member to be reduced since there are no longer any threaded holes.
  • the ends of these portions may be perpendicular to the longitudinal edges, but it is advantageous, in order to avoid any variation, notably when the rollers running on this bar are simple and not multiple, to provide oblique ends.
  • the various portions of the bar are then engaged end to end in the groove 10 so that their ends are in contact.
  • At least one abutment member is positioned near at least one of the ends of the bar or the rack.
  • Each abutment member may be constituted by a stud l6, forcibly engaged in the element 8 or 1 so as to project into the groove 10 (FIG. 6).
  • the metal at 13 and 14 can be caused to flow by hand by means of a riveting hammer, but it seems preferable for this to be done automatically by means of the bedding equipment described hereafter with reference to FIGS. 8 to 13. The results obtained are more certain, more uniform and have the appearance of being better finished.
  • the equipment has a tool carrier 18 having a laterally projecting shaft 19.
  • a bedding roller 20 is mounted on the protruding portion of this shaft by means of a needle bearing race or other bearing means. The bedding roller can thus rotate freely, but is prevented from axial movement by means of shoulders provided thereon and on its shaft, for example.
  • the bedding roller has two projecting annular flanges 21 and 22, which are substantially V-shaped in profile and which are spaced apart by an amount greater than the free width of the bar 8 or the rack 1.
  • the tool carrier 18 can of course be mounted on a machine other than that which was used for machining the grooves 10. It can for example be mounted on a specially designed independent machine which has a pressure device and a driving device, as well as guiding and bearing means adapted to be connected to the machine element which is to be equipped with the element 1 or 8.
  • the equipment can also have in combination with.
  • the bedding roller 20 a pressure roller 24, preceding the bedding roller since it is intended to apply the element 1 or 8 against the bottom of the groove 10 before the bedding is carried out.
  • the pressure roller 24 is freely mounted, by means of a needle bearing race 25 or other bearing, on a spindle 26 mounted in a movable element 27.
  • This movable element is in fact a yoke (FIG. 9) hinged on a spindle 28 engaged in the tool carrier 18.
  • the spindles 19, 26 and 28 are mutually parallel, so that by causing the element 27 to pivot, the level of the pressure roller 24 is altered with respect to that of the bedding roller 20.
  • the pressure roller 24 is also prevented from transverse movement with respect to the spindle 26 and the extent of its projection is determined so that its diametric plane of symmetry coincides with that of the bedding roller 20.
  • the diameter of the pressure roller 24 is slightly greater than that of the bedding roller 20, as during relative approach of the equipment and the element 8 or 1, this pressure roller must come into contact with these latter before the flanges 21 and 22 of the bedding roller come into contact with the edges of the groove 10.
  • the roller 24 must exert a large pressure on the element 8 or 1 in order to apply it against the bottom of the groove 10.
  • the pivoting element is connected to at least one resilient member such as a spring.
  • this element 27 is secured to an extension 29 substantially perpendicular to the plane of the axes 26 and 28.
  • an apertured lug 30 on which is fitted a yoke 31, a pivot pin 31a being engaged through the lug and the branches of the yoke.
  • the yoke is provided with a rod 32 on which is disposed a spring 33 preferably constituted by a series of Belleville washers and bearing on a shoulder 34 of the tool carrier 18.
  • the rod 32 passes through a hole 35 leading to the shoulder 34 and its threaded end cooperates with a nut 36 limiting the travel of the rod, i.e., the amplitude of pivot of the element 27. 1
  • the same equipment can also be used for bedding the element 8 or 1 in a downwardly open groove (FIGS. 12 and 13). For this, the cutting carriage of the planing or milling machine no longer acts by pushing,
  • the bedding roller 20 and the pressure roller 24 no longer act respectively on the lower parts of the edges of the groove and the portions of the guide bar, but on their upper parts, this being possible because the bedding and pressure rollers are mounted on a projecting member.
  • FIG. 13 clearly shows that, in this case, during the bedding operation the element 27 pivots in the opposite direction to that in the previous case.
  • This element is, moreover, no longer subjected to the pressure forces of the Belleville washers 33, but to those of other Belleville washers 38 disposed on the rod 32 and interposed between another shoulder 39 of the tool carrier and the nut 36.
  • the bedding roller 20 may be in several parts, so that, by means of an intermediate washer, it is possible to adjust the distance between the flanges 21 and 22. Moreover, these flanges have a different height depending on whether the bedding roller is intended to bed a guide bar 8 or a toothed rack 1. Furthermore, several bedding rollers may be mounted in series to constitute a train, the bedding depth varying from one roller to the other. Again, several pressure rollers may also be mounted in series to constitute a train distributing the contact pressure over a greater length.
  • roller or rollers may be mounted on a movable element independent of the tool carrier and, in this case, the movable element is fixed to a pressure member which may simply be a helicoidal compression spring or a pneumatic or hydraulic jack or other suitable means.
  • Apparatus for mounting and securing a rectilinear element on a support member of a machine comprising: a tool carrier having at least one bedding roller with two projecting flanges of substantially V-shaped profile separated by an amount greater than the free width of the rectilinear element.
  • Apparatus according to claim 2 further including a movable element guided on the tool carrier and connected to at least one pressure member; said movable element freely carrying said pressure roller.
  • Apparatus according to claim 4 wherein the movable element has a rod on which are mounted two opposed springs interposed between three abutments of which at least one is secured to the tool carrier.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Transmission Devices (AREA)
  • Machine Tool Units (AREA)
  • Forging (AREA)
US89187A 1967-03-30 1970-11-13 Method and apparatus of mounting and securing a rectilinear element on a support member of a machine Expired - Lifetime US3685116A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR100801A FR1527022A (fr) 1967-03-30 1967-03-30 Perfectionnements aux chemins de guidage rapportés pour éléments mobiles de machines-outils
FR112020A FR1535623A (fr) 1967-06-27 1967-06-27 Procédé et outillage pour le montage et l'assujettissement d'un élément, tel qu'une règle rapportée, sur une machine-outil
FR137577A FR93933E (fr) 1967-06-27 1968-01-26 Procédé et outillage pour le montage et l'assunjettissement d'un élément tel qu'une regle rapportée, sur une machine-outil.

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US3685116A true US3685116A (en) 1972-08-22

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US89187A Expired - Lifetime US3685116A (en) 1967-03-30 1970-11-13 Method and apparatus of mounting and securing a rectilinear element on a support member of a machine

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US (1) US3685116A (enExample)
JP (1) JPS4814977B1 (enExample)
DE (2) DE1752045A1 (enExample)
GB (1) GB1162944A (enExample)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997014894A1 (en) * 1995-10-20 1997-04-24 Thomson Industries, Inc. Linear motion bearing fabrication
CN104806632A (zh) * 2015-04-30 2015-07-29 苏州世力源科技有限公司 一种提高组合式重型直线导轨可靠性的方法及其装置
US10465751B2 (en) * 2016-05-09 2019-11-05 Alan Robert Gillengerten Rotating conduit joints

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3410575A1 (de) * 1984-03-22 1985-10-03 Hahn & Kolb, 7000 Stuttgart Mehrkantdrehmaschine
DE102006016946B4 (de) * 2006-04-11 2014-02-06 Robert Bosch Gmbh Linearführungseinrichtung
CN109083926A (zh) * 2018-08-24 2018-12-25 苏州卓诚钛设备有限公司 一种内腔可调节型导轨固定件

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997014894A1 (en) * 1995-10-20 1997-04-24 Thomson Industries, Inc. Linear motion bearing fabrication
US5930898A (en) * 1995-10-20 1999-08-03 Thomson Industries, Inc. Linear motion bearing fabrication
EP1092884A1 (en) * 1995-10-20 2001-04-18 Thomson Industries, Inc. Linear motion bearing fabrication
CN104806632A (zh) * 2015-04-30 2015-07-29 苏州世力源科技有限公司 一种提高组合式重型直线导轨可靠性的方法及其装置
US10465751B2 (en) * 2016-05-09 2019-11-05 Alan Robert Gillengerten Rotating conduit joints

Also Published As

Publication number Publication date
GB1162944A (en) 1969-09-04
DE1752045A1 (de) 1971-05-13
DE1903047A1 (de) 1970-09-03
JPS4814977B1 (enExample) 1973-05-11

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