EP0622134A1 - Device for greasing strip of plate-like workpieces - Google Patents

Device for greasing strip of plate-like workpieces Download PDF

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Publication number
EP0622134A1
EP0622134A1 EP94103150A EP94103150A EP0622134A1 EP 0622134 A1 EP0622134 A1 EP 0622134A1 EP 94103150 A EP94103150 A EP 94103150A EP 94103150 A EP94103150 A EP 94103150A EP 0622134 A1 EP0622134 A1 EP 0622134A1
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EP
European Patent Office
Prior art keywords
bearing
base plate
greasing
pressure medium
spring
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.)
Granted
Application number
EP94103150A
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German (de)
French (fr)
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EP0622134B1 (en
Inventor
Georg Gisbert Dipl.-Ing. Zibulla
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.)
RAZIOL ZIBULLA & SOHN GMBH
Original Assignee
Zibulla & Sohn Raziol-Schmierungstechnik GmbH
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Publication of EP0622134A1 publication Critical patent/EP0622134A1/en
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05CAPPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C1/00Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating
    • B05C1/04Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length
    • B05C1/08Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length using a roller or other rotating member which contacts the work along a generating line
    • B05C1/0826Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length using a roller or other rotating member which contacts the work along a generating line the work being a web or sheets
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05CAPPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C9/00Apparatus or plant for applying liquid or other fluent material to surfaces by means not covered by any preceding group, or in which the means of applying the liquid or other fluent material is not important
    • B05C9/04Apparatus or plant for applying liquid or other fluent material to surfaces by means not covered by any preceding group, or in which the means of applying the liquid or other fluent material is not important for applying liquid or other fluent material to opposite sides of the work
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21BROLLING OF METAL
    • B21B45/00Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
    • B21B45/02Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills for lubricating, cooling, or cleaning
    • B21B45/0239Lubricating
    • B21B45/0245Lubricating devices
    • B21B45/0248Lubricating devices using liquid lubricants, e.g. for sections, for tubes
    • B21B45/0251Lubricating devices using liquid lubricants, e.g. for sections, for tubes for strips, sheets, or plates

Definitions

  • the invention relates to a device for the controllable greasing of workpieces in band or plate form with a plurality of greasing rollers provided with fat-permeable material, hollow and coaxially aligned greasing rollers, each arranged on both ends of a hollow axle on a bearing connected to a base plate and via at least two pressure medium cylinders and two guides can be attached to the workpiece surface.
  • a known device of this type according to DE 41 05 364 C1 can be used flexibly without prior conversion measures for the production of different surface layouts of a partial greasing of workpieces.
  • the greasing rollers are individually stored in a device frame and can be attached to the facing workpiece surface or the workpiece lower surface at the same time or at different times for individual greasing.
  • Each greasing roller is mounted in a separate frame box at both ends in its side cheeks, each side cheek being screwed to the frame box with one leg of an L-shaped bracket using a screw and detachably coupled to a piston rod of a pressure medium cylinder with the knurled screw extending through a through opening is.
  • the pressure medium cylinder is in turn fixed to the base plate.
  • the greasing roller is thus guided via the pressure medium cylinder and the guide relative to the fixed base plate and thus also to the workpiece surface so as to be variable in distance.
  • the upper piston rod shaft extends with a large lateral clearance and with a large clearance through a through opening of the L-shaped bracket, there is a tilting of the piston rods of the pressure medium cylinders due to manufacturing-related roller diameter differences, reaction forces originating from the workpiece and the diagonal arrangement of the pressure medium cylinders and the guides cannot be completely ruled out in these through openings.
  • both the guide and the pressure medium cylinder are relatively rigidly attached to the stationary base plate.
  • the cylindrical helical springs encompassing the ball guides tightly concentrically can not remedy the situation, since their task is merely to ensure shock-free and vibration-free greasing contact of the greasing rollers with the respective workpiece surface.
  • a hollow shaft for rotatably accommodating greasing rollers is mounted in an upper box and a lower box, specifically in the side parts of these boxes. These boxes are vertical guided against each other, for which purpose a pressure medium cylinder and a ball guide are arranged diagonally offset from each other.
  • This device is in need of improvement insofar as the greasing rollers can be placed relatively rigidly over the base plate and the boxes on the workpiece surface and between two different greasing processes the greasing rollers are previously released from their detents on the respective hollow axis, re-aligned and locked in accordance with the desired greasing to the workpiece have to.
  • DE 35 07 845 C1 discloses a device with an upper housing box and a lower housing box, in which the greasing rollers are opposite each other as exactly as possible in one plane and these boxes each have four guide columns and under the action of a concentrically encircling cylindrical coil spring and a pressure medium cylinder are adjustable relative to a base plate.
  • the greasing rollers are loaded by the pressure-cylindrical coil springs in the sense of a passage gap closure.
  • tilting within the guides and uneven greasing results on the workpiece can occur due to manufacturing-related differences in roller diameter and workpiece unevenness.
  • the invention has for its object to provide a device of the type mentioned, which on the one hand non-uniform greasing results due to roller diameter differences or workpiece surface unevenness and ensures an elastic and tilt-free attachment of the greasing rollers on the workpiece surface.
  • the bearing at each end of the hollow axis consists of a bearing block which, under the action of a spring which is supported against it and the base plate, has at least one bearing pin which permits a limited play in several degrees of freedom is held on the base plate, which is adjustable via the pressure medium cylinder and the guides in the direction of the workpiece surface.
  • the greasing rollers against the action of supporting springs to compensate for roller diameter differences and workpiece unevenness are limited space in the direction of all degrees of freedom and tilted and arranged with all-round play on a base plate.
  • the base plate is placed on the workpiece surface with at least two pressure medium cylinders and a guide, which also opens up the possibility of a robot arm attaching the base plate to the workpiece surface to be greased while maintaining the flexibility of the greasing roller settings to let.
  • the above-described solution to the invention comprises not only an embodiment with only one bearing bolt diametrically penetrating both the bearing block and the hollow axis, but also the further embodiment in which each bearing block is held by two bearing bolts arranged symmetrically to the hollow axis and perpendicular to the base plate.
  • the bearing bolts consist of hexagon socket screws with their heads countersunk into the base plate, with smooth shafts that are circular in cross section, which pass through the bearing blocks in circular bores with radial play and are screwed to a nut at their exit point via a threaded end.
  • the base plate can not only be attached to any stationary, but also to a mobile base of a robot arm, whereby the radial play of the circular, smooth shaft to the circular holes in the bearing block maintains a mobility of the greasing roller in an infinite number of radial directions of the circular bore of the bearing blocks .
  • the respective spring advantageously consists of a cylindrical helical spring encompassing the smooth shaft of the bearing pin with radial spacing, which is embedded in one circular recess with one end in the base plate and with the other end in the bearing block.
  • This design does not affect the mobility of the bearing pin within the circular bore of the bearing block by the spring. Understands it is that the radial play of the cylindrical coil spring with respect to the outer circumferential surface of the shaft of the bearing pin is larger than this in relation to the inner surface of the circular bore in the bearing block.
  • the spring is formed by a pneumatic spring articulated at one end to the base plate and at the other end to the bearing block.
  • the bearing block advantageously consists of a split clamping block, between the parts of which the end of the hollow axis is clamped in a rotationally immovable manner by means of a screw connection. Since the greasing roller is rotatably arranged on the hollow axis, this arrangement allows a steady and easily sealable inflow of grease into the hollow axis.
  • one of the base plates of two greasing rollers or a row of greasing rollers between them to hold the workpiece to be greased is arranged in a stationary manner, both base plates being provided with side cheeks and the end of a pressure medium cylinder on each side cheek of a base plate and a guide is attached, which are advantageously arranged diagonally to one another.
  • one or more rows of greasing rollers arranged coaxially or offset from one another can be set up on a single base plate by just two pneumatic cylinders and two guides in the direction of the workpiece surface, which, due to their limited space-mobile arrangement, allow the existing diameter tolerances in all degrees of freedom to avoid different greasing results can compensate for their separately spring-loaded bearing articulation.
  • the end of a pressure medium cylinder is advantageously arranged on the outer edge region of each side cheek and the end of a guide is arranged in the geometric central region of each side cheek.
  • the pressure medium cylinders are at one end, for example on the side wall of the base plate for the lubricating rollers of the lower surface of the workpiece, via an L-shaped angle and at the other end,
  • the side cheek of the base plate for the greasing rollers greasing the workpiece surface articulated on these side cheeks by means of a U-shaped cross section.
  • the rows to be attached above and below the respective workpiece can be aligned with one another with simple means while maintaining their specific and elastic mobility of the individual greasing rollers.
  • to align free end of the piston rod is fixed in place by means of a lock nut on the L-shaped bracket, whereas the pressure medium cylinder is articulated in the U-shaped bracket of the side cheek of the overlying base plate.
  • the guide advantageously consists of a rod with a circular cross section, which is guided at both ends in a slide bearing of a side cheek of two diametrically opposed base plates.
  • This guide can also consist of known ball guides and pneumatic cylinders in the pressure medium cylinder.
  • the basic form of the device 10 according to the invention for the controllable greasing of workpieces 11 consists of two greasing rollers 12, 13 which are coated with fat-permeable material, e.g. with felt, covered and arranged on a hollow shaft 14, 15 at both ends 14a, 14b and 15a, 15b on a bearing 18 each connected to a base plate 16, 17 and via at least two pressure medium cylinders (preferably pneumatically operated) 19, 20 and two guides 21 can be attached to the workpiece lower surface 11a and the workpiece surface 11b.
  • two greasing rollers 12, 13 which are coated with fat-permeable material, e.g. with felt, covered and arranged on a hollow shaft 14, 15 at both ends 14a, 14b and 15a, 15b on a bearing 18 each connected to a base plate 16, 17 and via at least two pressure medium cylinders (preferably pneumatically operated) 19, 20 and two guides 21 can be attached to the workpiece lower surface 11a and the workpiece surface 11b.
  • fat-permeable material e.g
  • each bearing 18 has a bearing block at each end 14a, 14b and 15a, 15b of the hollow axes 14, 15 22, which is supported under the action of a spring 23 which supports itself against it 22 and the base plate 16, 17 via at least a limited clearance in several degrees of freedom bearing bolts 24 on the respective base plate 16, 17, which via the pressure medium cylinders 19, 20 and Guides 21 is adjustable in the direction of the workpiece surface 11a, 11b.
  • each bearing block 22 is held by two bearing bolts 24 arranged symmetrically to the hollow axis 14, 15 and perpendicularly on the respective base plate 16, 17.
  • the device according to the invention also includes an embodiment in which each bearing block 22 and at the same time each end 14a, 14b; 15a 15b of the hollow shaft 14, 15 is penetrated diametrically by only one bearing pin 24 with a corresponding clearance, as is indicated by dash-dot lines in the upper part of FIG.
  • the bearing bolts 24 consist of with their head 25 in the base plate 16, 17 countersunk Allen screws with smooth, circular in cross-section shafts 26, which the bearing blocks 22 in circular bores 27 with radial play reach through and are screwed at their exit point via a threaded end 28 with a nut 29.
  • Each bearing block 22 consists of a split clamping block, between the parts 22a, 22b of which the respective end 14a, 14b; 15a, 15b of the hollow shaft 14, 15 is clamped in a rotationally immovable manner by means of a screw connection 30 consisting of two diametrically opposite screws.
  • the respective spring 23 is formed from a cylindrical helical spring encompassing the smooth shaft 26 of the bearing bolt 24 with a radial spacing, each with one end 23a in the base plate 16, 17 and the other end 23b in the bearing block 22 circular recess is recessed. Due to the circular recesses in the base plates 16, 17 on the one hand and the bearing blocks 22 on the other hand, a relative displacement of the springs 23 to the bearing bolts 24 is prevented. A relative displacement between these two elements is only made possible by the radial play of the circular through bores 27 within the bearing blocks 22 relative to the smooth shaft 26 of the bearing bolts 24. This radial play is possible in an infinite number of radial directions of the bearing pin 24.
  • the spring 23 can also be replaced by a pneumatic spring, not shown, which is articulated at one end to the base plate 16, 17 and at the other end to the bearing block 22.
  • one of the base plates here for example the base plate 16, of two greasing rollers 12, 13 or rows of these 12, 13, which accommodate the workpiece 11 to be greased, can be arranged in a stationary manner.
  • Both base plates 16, 17 are provided with side cheeks 31, on each of which one end of a pressure medium cylinder 19, 20 and a guide 21 are attached.
  • Each pressure medium cylinder 19, 20 is at one end via the free end 32a its piston rod 32 attached to an L-shaped bracket 33 by means of a nut 34 and a lock nut 35, whereas at the other end 20a it is articulated on the side cheeks 31 via a bracket 36 with a U-shaped cross section.
  • the base plates 16, 17 can be adjusted relative to one another via the nut 34 and the lock nut 35.
  • the guide 21 consists in the representations of a rod with a circular cross section, which is guided at the end 21a by means of the holder 37 and at the end 21b in a slide bearing 38 on a side cheek 21 of the two diametrically opposite base plates 16, 17.
  • the plain bearings 37, 38 can also consist of ball guides and the pressure medium cylinders 19, 20 of pneumatic cylinders.
  • FIGS. 4 to 6 parts which correspond to FIGS. 1 to 3 are designated by the same reference numbers.
  • Each embodiment differs from the embodiment of FIGS. 1 to 3 essentially in that the base plates 16, 17 with a plurality of greasing rollers 12, 13 with both coaxially next to one another and parallel, the respective gaps of the preceding row of greasing rollers 12, 13 overlapping greasing rollers or whose rows are populated.
  • the end of a pressure medium cylinder 19, 20 is arranged on the outer edge region 39 at the same distance and symmetrically to the axis of symmetry 40.
  • the lower end 21a of the guide 21 is held in a clamp 37, while the upper end 21b of the guide 21 is slidably guided in a sliding bearing 38 is.
  • both the greasing rollers 13 and the greasing rollers 12 must set apart from the workpiece surfaces 11b and 11a assigned to them - and be attachable to it again.
  • FIGS. 7 to 9 A third embodiment according to the invention, with which this is made possible, is shown in FIGS. 7 to 9. Parts corresponding to FIGS. 1 to 6 are designated by the same reference numbers.
  • the base plates 16, 17 with their greasing rollers 12, 13 can be attached to the workpiece lower surface 11a or to the workpiece surface 11b simultaneously or at different times.
  • each of these now displaceable base plates 16, 17 requires a fixed plate 42, four pneumatic cylinders 19, 20 being arranged between the base plates 16, 17 and the fixed plates 42 at each end.
  • the base plates 16, 17 can be moved relative to the fixed plates 42 on the fixed guide 21 by means of the displaceable slide bearings 38 via these pneumatic cylinders 19, 20 and the greasing rollers 12, 13 can accordingly be attached to the workpiece lower surface 11a or the workpiece surface 11b and again be lifted off.
  • the workpiece 11 is supported by guide rollers, not shown.
  • the pistons of the pneumatic cylinders 19, 20 can be acted upon on both sides in order to act on the workpiece surfaces 11a and 11b on both sides.
  • the last-described embodiment is used in particular with large working gaps between the greasing rollers 12, 13, which is characteristic, for example, in differential travel presses.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Rolls And Other Rotary Bodies (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Rolling Contact Bearings (AREA)
  • Milling, Drilling, And Turning Of Wood (AREA)
  • Advancing Webs (AREA)

Abstract

The device has greasing rollers with bearings on bearing blocks. Each bearing (18) block is held on baseplates (16,17), via a bearing pin (24). The bearing block is loaded by a spring (23), which supports itself on block and baseplates. The bearing pin permits limited play in several deg. of freedom. Pressure medium cylinders (19,20) and guides (21) are located beside the bearing blocks, and are connected to the baseplates. Each block is held by two bearing pins, which are located symmetrical to the hollow axis (14,15), and at right angles on the baseplates.

Description

Die Erfindung betrifft eine Vorrichtung zum steuerbaren Befetten von Werkstücken in Band- oder Platinenform mit mehreren mit fettdurchlässigem Material versehenen, hohlen sowie koaxial zueinander ausgerichteten Befettungswalzen, die jeweils auf einer Hohlachse beidendig auf einem mit einer Grundplatte in Verbindung stehenden Lager angeordnet und über mindestens zwei Druckmittelzylinder und zwei Führungen an der Werkstückfläche ansetzbar sind.The invention relates to a device for the controllable greasing of workpieces in band or plate form with a plurality of greasing rollers provided with fat-permeable material, hollow and coaxially aligned greasing rollers, each arranged on both ends of a hollow axle on a bearing connected to a base plate and via at least two pressure medium cylinders and two guides can be attached to the workpiece surface.

Eine bekannte Vorrichtung dieser Art nach der DE 41 05 364 C1 kann ohne vorhergehende Umbaumaßnahmen flexibel zur Herstellung unterschiedlicher Flächenaufteilungen einer partiellen Befettung von Werkstücken eingesetzt werden. Dabei werden die Befettungswalzen einzeln in einem Vorrichtungsgestell gelagert und können zur individuellen Befettung zugleich oder zeitverschieden an die zugekehrte Werkstückoberfläche oder die Werkstückunterfläche angesetzt werden. Jede Befettungswalze ist in einem separaten Gestellkasten beidendig in dessen Seitenwangen gelagert, wobei jede Seitenwange mit einem Schenkel eines L-förmigen Haltewinkels über eine Schraube mit dem Gestellkasten verschraubt und über den anderen Schenkel mit der durch eine Durchgangsöffnung greifenden Rändelschraube mit einer Kolbenstange eines Druckmittelzylinders lösbar gekuppelt ist. Der Druckmittelzylinder wiederum ist raumfest an der Grundplatte befestigt.A known device of this type according to DE 41 05 364 C1 can be used flexibly without prior conversion measures for the production of different surface layouts of a partial greasing of workpieces. The greasing rollers are individually stored in a device frame and can be attached to the facing workpiece surface or the workpiece lower surface at the same time or at different times for individual greasing. Each greasing roller is mounted in a separate frame box at both ends in its side cheeks, each side cheek being screwed to the frame box with one leg of an L-shaped bracket using a screw and detachably coupled to a piston rod of a pressure medium cylinder with the knurled screw extending through a through opening is. The pressure medium cylinder is in turn fixed to the base plate.

Bei dieser Ausführungsform wird somit die Befettungswalze über den Druckmittelzylinder und die Führung relativ zur ortsfesten Grundplatte und damit auch zur Werkstückfläche abstandsveränderbar geführt.In this embodiment, the greasing roller is thus guided via the pressure medium cylinder and the guide relative to the fixed base plate and thus also to the workpiece surface so as to be variable in distance.

Obgleich sich der obere Kolbenstangenschaft mit großem seitlichen und mit großem Höhenspiel durch eine Durchgangsöffnung des L-förmigen Haltewinkels erstreckt, ist wegen herstellungsbedingter Walzendurchmesser-Differenzen, wegen vom Werkstück ausgehender Reaktionskräfte sowie wegen der diagonalen Anordnung der Druckmittelzylinder und der Führungen eine Verkantung der Kolbenstangen der Druckmittelzylinder in diesen Durchgangsöffnungen nicht gänzlich auszuschließen. Dieses deswegen, weil sowohl die Führung als auch der Druckmittelzylinder relativ starr an der ortsfesten Grundplatte befestigt sind. Diesbezüglich können auch die die die Kugelführungen eng konzentrisch umgreifenden, zylindrischen Schraubenfedern keine Abhilfe schaffen, da ihre Aufgabe lediglich darin besteht, einen stoß- sowie vibrationsfreien Befettungskontakt der Befettungswalzen mit der jeweiligen Werkstückfläche zu gewährleisten.Although the upper piston rod shaft extends with a large lateral clearance and with a large clearance through a through opening of the L-shaped bracket, there is a tilting of the piston rods of the pressure medium cylinders due to manufacturing-related roller diameter differences, reaction forces originating from the workpiece and the diagonal arrangement of the pressure medium cylinders and the guides cannot be completely ruled out in these through openings. This is because both the guide and the pressure medium cylinder are relatively rigidly attached to the stationary base plate. In this regard, the cylindrical helical springs encompassing the ball guides tightly concentrically can not remedy the situation, since their task is merely to ensure shock-free and vibration-free greasing contact of the greasing rollers with the respective workpiece surface.

Bei einer Vorrichtung anderer Art gemäß der DE 35 07 846 C1 sind in einem Oberkasten und einem Unterkasten jeweils eine Hohlachse zur drehbaren Aufnahme von Befettungswalzen gelagert, und zwar in den Seitenteilen dieser Kästen. Diese Kästen sind in Vertikalrichtung gegeneinander geführt, wozu an den Stirnseiten jeweils diagonal zueinander versetzt je ein Druckmittelzylinder und eine Kugelführung angeordnet sind. Diese Vorrichtung ist insofern verbesserungsbedürftig, als die Befettungswalzen relativ starr über die Grundplatte und die Kästen an der Werkstückoberfläche ansetzbar sind und zwischen zwei unterschiedlichen Befettungsvorgängen die Befettungswalzen zuvor aus ihren Arretierungen auf der jeweiligen Hohlachse gelöst, entsprechend der gewünschten Befettung zum Werkstück erneut ausgerichtet und arretiert werden müssen.In a device of another type according to DE 35 07 846 C1, a hollow shaft for rotatably accommodating greasing rollers is mounted in an upper box and a lower box, specifically in the side parts of these boxes. These boxes are vertical guided against each other, for which purpose a pressure medium cylinder and a ball guide are arranged diagonally offset from each other. This device is in need of improvement insofar as the greasing rollers can be placed relatively rigidly over the base plate and the boxes on the workpiece surface and between two different greasing processes the greasing rollers are previously released from their detents on the respective hollow axis, re-aligned and locked in accordance with the desired greasing to the workpiece have to.

Und schließlich ist aus der DE 35 07 845 C1 eine Vorrichtung mit einem Gehäuseoberkasten und einem Gehäuseunterkasten bekannt, in denen die Befettungswalzen möglichst in einer Ebene einander exakt gegenüberliegen und diese Kästen jeweils über vier Führungssäulen sowie unter Wirkung einer diese konzentrisch umgreifenden zylindrischen Schraubenfeder und eines Druckmittelzylinders relativ zu einer Grundplatte verstellbar sind. Dabei sind die Befettungswalzen durch die druckzylindrischen Schraubenfedern im Sinne einer Durchlaßspaltschließung belastet. Auch hier können aufgrund von herstellungsbedingten Walzendurchmesser-Differenzen sowie durch Werkstückunebenheiten Verkantungen innerhalb der Führungen sowie ungleichmäßige Befettungsergebnisse am Werkstück auftreten.And finally, DE 35 07 845 C1 discloses a device with an upper housing box and a lower housing box, in which the greasing rollers are opposite each other as exactly as possible in one plane and these boxes each have four guide columns and under the action of a concentrically encircling cylindrical coil spring and a pressure medium cylinder are adjustable relative to a base plate. The greasing rollers are loaded by the pressure-cylindrical coil springs in the sense of a passage gap closure. Here too, tilting within the guides and uneven greasing results on the workpiece can occur due to manufacturing-related differences in roller diameter and workpiece unevenness.

Von diesem Stand der Technik ausgehend, liegt der Erfindung die Aufgabe zugrunde, eine Vorrichtung der eingangs genannten Gattung zu schaffen, die einerseits ungleichmäßige Befettungsergebnisse infolge von Walzendurchmesser-Differenzen bzw. Werkstückoberflächen-Unebenheiten ausschließt und ein elastisches sowie verkantungsfreies Ansetzen der Befettungswalzen an der Werkstückfläche gewährleistet.Starting from this prior art, the invention has for its object to provide a device of the type mentioned, which on the one hand non-uniform greasing results due to roller diameter differences or workpiece surface unevenness and ensures an elastic and tilt-free attachment of the greasing rollers on the workpiece surface.

Diese Aufgabe wird in Verbindung mit dem eingangs genannten Gattungsbegriff erfindungsgemäß dadurch gelöst, daß das Lager an jedem Ende der Hohlachse aus einem Lagerbock besteht, der unter Wirkung einer sich gegen ihn und der Grundplatte abstützenden Feder über mindestens einen ein begrenztes Spiel in mehreren Freiheitsgraden zulassenden Lagerbolzen auf der Grundplatte gehaltert ist, die über die Druckmittelzylinder und die Führungen in Richtung auf die Werkstückfläche verstellbar ist.This object is achieved in connection with the generic term mentioned at the outset in that the bearing at each end of the hollow axis consists of a bearing block which, under the action of a spring which is supported against it and the base plate, has at least one bearing pin which permits a limited play in several degrees of freedom is held on the base plate, which is adjustable via the pressure medium cylinder and the guides in the direction of the workpiece surface.

Durch diese Ausbildung wird eine Vorrichtung geschaffen, deren Befettungswalzen entgegen der Wirkung von abstützenden Federn zum Ausgleich von Walzendurchmesser-Differenzen sowie von Werkstückunebenheiten begrenzt raumbeweglich in Richtung sämtlicher Freiheitsgrade sowie verkantungsfrei und mit allseitigem Spiel auf einer Grundplatte angeordnet sind. Entgegen der Anordnung nach dem Stand der Technik wird die Grundplatte mit mindestens zwei Druckmittelzylindern und einer Führung an die Werkstückfläche angestellt, wodurch auch die Möglichkeit eröffnet ist, die Grundplatte von einem Roboterarm raumbeweglich unter Beibehaltung der Einstellungsflexibilität der Befettungswalzen an die jeweils zu befettende Werkstückfläche ansetzen zu lassen.Through this design, a device is created, the greasing rollers against the action of supporting springs to compensate for roller diameter differences and workpiece unevenness are limited space in the direction of all degrees of freedom and tilted and arranged with all-round play on a base plate. Contrary to the arrangement according to the prior art, the base plate is placed on the workpiece surface with at least two pressure medium cylinders and a guide, which also opens up the possibility of a robot arm attaching the base plate to the workpiece surface to be greased while maintaining the flexibility of the greasing roller settings to let.

Die vorbeschriebene Erfindungslösung umfaßt nicht nur eine Ausführungsform mit nur einem sowohl den Lagerbock als auch die Hohlachse diametral durchdringenden Lagerbolzen, sondern auch die weitere Ausführungsform, bei welcher jeder Lagerbock von zwei symmetrisch zur Hohlachse sowie senkrecht auf der Grundplatte angeordneten Lagerbolzen gehaltert ist.The above-described solution to the invention comprises not only an embodiment with only one bearing bolt diametrically penetrating both the bearing block and the hollow axis, but also the further embodiment in which each bearing block is held by two bearing bolts arranged symmetrically to the hollow axis and perpendicular to the base plate.

Nach einer vorteilhaften Weiterbildung der Erfindung bestehen die Lagerbolzen aus mit ihrem Kopf in die Grundplatte eingesenkten Innensechskantschrauben mit glatten, im Querschnitt kreisrunden Schäften, welche die Lagerböcke in Kreisbohrungen mit Radialspiel durchgreifen und an ihrer Austrittsstelle über ein Gewindeende mit einer Mutter verschraubt sind. Dadurch kann einerseits die Grundplatte nicht nur an jeder ortsfesten, sondern auch an einer raumbeweglichen Grundfläche eines Roboterarmes befestigt werden, wobei durch das Radialspiel des kreisrunden, glatten Schaftes zu den Kreisbohrungen im Lagerbock eine Beweglichkeit der Befettungswalze in unendlich vielen Radialrichtungen der Kreisbohrung der Lagerböcke erhalten bleibt.According to an advantageous development of the invention, the bearing bolts consist of hexagon socket screws with their heads countersunk into the base plate, with smooth shafts that are circular in cross section, which pass through the bearing blocks in circular bores with radial play and are screwed to a nut at their exit point via a threaded end. As a result, the base plate can not only be attached to any stationary, but also to a mobile base of a robot arm, whereby the radial play of the circular, smooth shaft to the circular holes in the bearing block maintains a mobility of the greasing roller in an infinite number of radial directions of the circular bore of the bearing blocks .

Nach einer ersten Variante besteht die jeweilige Feder vorteilhaft aus einer den glatten Schaft des Lagerbolzens mit radialem Abstand umgreifenden zylindrischen Schraubenfeder, die mit ihrem einen Ende in der Grundplatte und mit ihrem anderen Ende in dem Lagerblock in je einer kreisförmigen Ausnehmung eingelassen ist. Durch diese Ausbildung wird durch die Feder die Beweglichkeit des Lagerbolzens innerhalb der Kreisbohrung des Lagerbockes nicht beeinträchtigt. Dabei versteht es sich, daß das Radialspiel der zylindrischen Schraubenfeder in bezug auf die Außenumfangsfläche des Schaftes des Lagerbolzens größer bemessen ist als diese im Verhältnis zur Innenfläche der Kreisbohrung im Lagerbock.According to a first variant, the respective spring advantageously consists of a cylindrical helical spring encompassing the smooth shaft of the bearing pin with radial spacing, which is embedded in one circular recess with one end in the base plate and with the other end in the bearing block. This design does not affect the mobility of the bearing pin within the circular bore of the bearing block by the spring. Understands it is that the radial play of the cylindrical coil spring with respect to the outer circumferential surface of the shaft of the bearing pin is larger than this in relation to the inner surface of the circular bore in the bearing block.

Nach einer zweiten Ausführungsform wird die Feder von einer mit ihrem einen Ende an der Grundplatte und mit ihrem anderen Ende am Lagerbock angelenkten Pneumatikfeder gebildet.According to a second embodiment, the spring is formed by a pneumatic spring articulated at one end to the base plate and at the other end to the bearing block.

Welche dieser beiden Ausführungsformen beim jeweiligen Bedarfsfall verwendet werden, hängt im wesentlichen von der spezifischen Federkurve (Federkraft über Federweg) im Hinblick auf den Stellweg der Befettungswalze in Richtung auf die zu befettende Werkstückfläche ab.Which of these two embodiments are used in each case of need essentially depends on the specific spring curve (spring force over spring travel) with regard to the travel path of the greasing roller in the direction of the workpiece surface to be greased.

Der Lagerbock besteht vorteilhaft aus einem geteilten Spannbock, zwischen dessen Teilen das Ende der Hohlachse mittels einer Schraubverbindung drehunbeweglich eingespannt ist. Da die Befettungswalze drehbeweglich auf der Hohlachse angeordnet ist, erlaubt diese Anordnung einen stationären und gut abdichtbaren Fettmittelzufluß in die Hohlachse.The bearing block advantageously consists of a split clamping block, between the parts of which the end of the hollow axis is clamped in a rotationally immovable manner by means of a screw connection. Since the greasing roller is rotatably arranged on the hollow axis, this arrangement allows a steady and easily sealable inflow of grease into the hollow axis.

In Weiterbildung der Erfindung ist eine der Grundplatten zweier zwischen sich das zu befettende Werkstück aufnehmenden Befettungswalzen oder einer Reihe von Befettungswalzen ortsfest angeordnet, wobei beide Grundplatten mit Seitenwangen versehen sind und an jeder Seitenwange einer Grundplatte das Ende eines Druckmittelzylinders und einer Führung befestigt ist, die vorteilhaft zueinander diagonal angeordnet sind. Dadurch können an einer einzigen Grundplatte ein oder mehrere Reihen von koaxial oder versetzt zueinander angeordneten Befettungswalzen von lediglich zwei Pneumatikzylindern und zwei Führungen in Richtung auf die Werkstückfläche angestellt werden, die aufgrund ihrer begrenzt raumbeweglichen Anordnung in sämtlichen Freiheitsgraden die unter ihnen bestehenden Durchmessertoleranzen zur Vermeidung unterschiedlicher Befettungsergebnisse aufgrund ihrer getrennt federbeweglichen Lagergelenkigkeit ausgleichen können. Dabei ist vorteilhaft am äußeren Randbereich einer jeden Seitenwange je das Ende eines Druckmittelzylinders und im geometrischen Mittelbereich einer jeden Seitenwange das Ende einer Führung angeordnet.In a further development of the invention, one of the base plates of two greasing rollers or a row of greasing rollers between them to hold the workpiece to be greased is arranged in a stationary manner, both base plates being provided with side cheeks and the end of a pressure medium cylinder on each side cheek of a base plate and a guide is attached, which are advantageously arranged diagonally to one another. As a result, one or more rows of greasing rollers arranged coaxially or offset from one another can be set up on a single base plate by just two pneumatic cylinders and two guides in the direction of the workpiece surface, which, due to their limited space-mobile arrangement, allow the existing diameter tolerances in all degrees of freedom to avoid different greasing results can compensate for their separately spring-loaded bearing articulation. The end of a pressure medium cylinder is advantageously arranged on the outer edge region of each side cheek and the end of a guide is arranged in the geometric central region of each side cheek.

Zur Gesamtjustierung von einer Befettungswalze oder einer Reihe davon einmal an der Werkstückoberfläche und ein weiteres Mal an der Werkstückunterfläche sind die Druckmittelzylinder an einem Ende, z.B. an der Seitenwange der Grundplatte für die Befettungswalzen der Werkstückunterfläche, über einen L-förmigen Winkel und am anderen Ende, z.B. an der Seitenwange der Grundplatte für die die Werkstückoberfläche befettenden Befettungswalzen, über einen im Querschnitt U-förmigen Bügel an diesen Seitenwangen angelenkt. Dadurch können unter Beibehaltung ihrer spezifischen sowie elastischen Lagerbeweglichkeit der einzelnen Befettungswalzen die ober- und unterhalb an das jeweilige Werkstück anzusetzenden Reihen mit einfachen Mitteln zueinander ausgerichtet werden. Zum Ausrichten wird beispielsweise das freie Ende der Kolbenstange mittels einer Kontermutter am L-förmigen Winkel ortsfest gekontert, wohingegen der Druckmittelzylinder im U-förmigen Bügel der Seitenwange der darüberliegenden Grundplatte gelenkig angelenkt ist.For the overall adjustment of a greasing roller or a row thereof once on the workpiece surface and once more on the lower surface of the workpiece, the pressure medium cylinders are at one end, for example on the side wall of the base plate for the lubricating rollers of the lower surface of the workpiece, via an L-shaped angle and at the other end, For example, on the side cheek of the base plate for the greasing rollers greasing the workpiece surface, articulated on these side cheeks by means of a U-shaped cross section. As a result, the rows to be attached above and below the respective workpiece can be aligned with one another with simple means while maintaining their specific and elastic mobility of the individual greasing rollers. For example, to align free end of the piston rod is fixed in place by means of a lock nut on the L-shaped bracket, whereas the pressure medium cylinder is articulated in the U-shaped bracket of the side cheek of the overlying base plate.

Die Führung besteht vorteilhaft aus einer Stange mit Kreisquerschnitt, die an beiden Enden in je einem Gleitlager einer Seitenwange zweier diametral gegenüberliegender Grundplatten geführt ist. Diese Führung kann auch aus bekannten Kugelführungen und im Druckmittelzylinder aus Pneumatikzylindern bestehen.The guide advantageously consists of a rod with a circular cross section, which is guided at both ends in a slide bearing of a side cheek of two diametrically opposed base plates. This guide can also consist of known ball guides and pneumatic cylinders in the pressure medium cylinder.

Mehrere Ausführungsbeispiele der Erfindung sind in den Zeichnungen dargestellt. Dabei zeigen:

  • Fig. 1 die Ansicht einer ersten Ausführungsform der erfindungsgemäßen Vorrichtung in Durchlaufrichtung eines zu befettenden Werkstückes mit je einer an einer unteren und einer oberen Grundplatte angeordneten Befettungswalze,
  • Fig. 2 die Ansicht in Richtung II-II von Fig. 1,
  • Fig. 3 die Ansicht in Richtung III-III von Fig. 1,
  • Fig. 4 die Ansicht einer zweiten Ausführungsform der Vorrichtung in Durchlaufrichtung eines zu befettenden Werkstückes mit mehreren koaxial sowie hintereinander angeordneten Befettungswalzen an einer unteren und einer oberen Grundplatte in Richtung IV-IV von Fig. 5,
  • Fig. 5 die Ansicht in Richtung V-V von Fig. 4,
  • Fig. 6 die Ansicht in Richtung des Pfeiles VI von Fig. 4,
  • Fig. 7 die Ansicht auf eine dritte Ausführungsform der erfindungsgemäßen Vorrichtung in Durchlaufrichtung des Werkstückes mit zwei gleichzeitig aufeinander zustellbaren Grundplatten an der Unter- und an der Oberseite des Werkstückes,
  • Fig. 8 die Ansicht in Richtung der Pfeile VIII-VIII von Fig. 7 und
  • Fig. 9 die Ansicht in Richtung des Pfeiles IX von Fig. 7.
Several embodiments of the invention are shown in the drawings. Show:
  • 1 is a view of a first embodiment of the device according to the invention in the direction of passage of a workpiece to be greased, each with a greasing roller arranged on a lower and an upper base plate,
  • 2 shows the view in the direction II-II of FIG. 1,
  • 3 shows the view in the direction III-III of FIG. 1,
  • 4 shows the view of a second embodiment of the device in the direction of passage of a workpiece to be greased with a plurality of greasing rollers arranged coaxially and one behind the other on a lower and an upper base plate in the direction IV-IV of FIG. 5,
  • 5 shows the view in the direction VV of FIG. 4,
  • 6 is the view in the direction of arrow VI of FIG. 4,
  • 7 shows the view of a third embodiment of the device according to the invention in the direction of passage of the workpiece with two base plates which can be simultaneously moved towards one another on the bottom and on the top of the workpiece,
  • Fig. 8 is the view in the direction of arrows VIII-VIII of Fig. 7 and
  • 9 is a view in the direction of arrow IX of FIG. 7.

Gemäß den Fig. 1 bis 3 besteht die Grundform der erfindungsgemäßen Vorrichtung 10 zum steuerbaren Befetten von Werkstücken 11 aus zwei Befettungswalzen 12, 13, die mit fettdurchlässigem Material, z.B. mit Filz, ummantelt und jeweils auf einer Hohlachse 14, 15 an beiden Enden 14a, 14b und 15a, 15b auf einem mit je einer Grundplatte 16, 17 in Verbindung stehenden Lager 18 angeordnet und über mindestens zwei Druckmittelzylinder (vorzugsweise pneumatisch betrieben) 19, 20 und zwei Führungen 21 an der Werkstückunterfläche 11a und der Werkstückoberfläche 11b ansetzbar sind.1 to 3, the basic form of the device 10 according to the invention for the controllable greasing of workpieces 11 consists of two greasing rollers 12, 13 which are coated with fat-permeable material, e.g. with felt, covered and arranged on a hollow shaft 14, 15 at both ends 14a, 14b and 15a, 15b on a bearing 18 each connected to a base plate 16, 17 and via at least two pressure medium cylinders (preferably pneumatically operated) 19, 20 and two guides 21 can be attached to the workpiece lower surface 11a and the workpiece surface 11b.

Erfindungsgemäß weist jedes Lager 18 an jedem Ende 14a, 14b und 15a, 15b der Hohlachsen 14, 15 einen Lagerbock 22 auf, der unter Wirkung einer sich gegen ihn 22 und der Grundplatte 16, 17 abstützenden Feder 23 über mindestens ein begrenztes Spiel in mehreren Freiheitsgraden zulassenden Lagerbolzen 24 auf der jeweiligen Grundplatte 16, 17 gehaltert ist, die über die Druckmittelzylinder 19, 20 und die Führungen 21 in Richtung auf die Werkstückfläche 11a, 11b verstellbar ist. Im dargestellten Fall ist jeder Lagerbock 22 von zwei symmetrisch zur Hohlachse 14, 15 sowie senkrecht auf der jeweiligen Grundplatte 16, 17 angeordneten Lagerbolzen 24 gehaltert. Die erfindungsgemäße Vorrichtung umfaßt jedoch auch eine Ausführungsform, in welcher jeder Lagerbock 22 und zugleich auch jedes Ende 14a, 14b; 15a 15b der Hohlachse 14, 15 diametral von nur einem Lagerbolzen 24 mit einem entsprechenden Spiel durchgriffen ist, so, wie es im oberen Teil der Fig.2 strichpunktiet angedeutet ist.According to the invention, each bearing 18 has a bearing block at each end 14a, 14b and 15a, 15b of the hollow axes 14, 15 22, which is supported under the action of a spring 23 which supports itself against it 22 and the base plate 16, 17 via at least a limited clearance in several degrees of freedom bearing bolts 24 on the respective base plate 16, 17, which via the pressure medium cylinders 19, 20 and Guides 21 is adjustable in the direction of the workpiece surface 11a, 11b. In the illustrated case, each bearing block 22 is held by two bearing bolts 24 arranged symmetrically to the hollow axis 14, 15 and perpendicularly on the respective base plate 16, 17. However, the device according to the invention also includes an embodiment in which each bearing block 22 and at the same time each end 14a, 14b; 15a 15b of the hollow shaft 14, 15 is penetrated diametrically by only one bearing pin 24 with a corresponding clearance, as is indicated by dash-dot lines in the upper part of FIG.

Wie aus dem unteren Teil der Fig. 2, linke Hälfte, hervorgeht, bestehen die Lagerbolzen 24 aus mit ihrem Kopf 25 in die Grundplatte 16, 17 eingesenkten Innensechskantschrauben mit glatten, im Querschnitt kreisrunden Schäften 26, welche die Lagerböcke 22 in Kreisbohrungen 27 mit Radialspiel durchgreifen und an ihrer Austrittsstelle über ein Gewindeende 28 mit einer Mutter 29 verschraubt sind. Dabei beteht jeder Lagerbock 22 aus einem geteilten Spannbock, zwischen dessen Teilen 22a, 22b das jeweilige Ende 14a, 14b; 15a, 15b der Hohlachse 14, 15 mittels einer aus zwei diametral gegenüberliegenden Schrauben bestehenden Schraubverbindung 30 drehunbeweglich eingespannt ist.As can be seen from the lower part of Fig. 2, left half, the bearing bolts 24 consist of with their head 25 in the base plate 16, 17 countersunk Allen screws with smooth, circular in cross-section shafts 26, which the bearing blocks 22 in circular bores 27 with radial play reach through and are screwed at their exit point via a threaded end 28 with a nut 29. Each bearing block 22 consists of a split clamping block, between the parts 22a, 22b of which the respective end 14a, 14b; 15a, 15b of the hollow shaft 14, 15 is clamped in a rotationally immovable manner by means of a screw connection 30 consisting of two diametrically opposite screws.

In sämtlichen Figuren wird die jeweilige Feder 23 aus einer den glatten Schaft 26 des Lagerbolzens 24 mit radialem Abstand umgreifenden zylindrischen Schraubenfeder gebildet, die mit ihrem einen Ende 23a in der Grundplatte 16, 17 und mit ihrem anderen Ende 23b in dem Lagerbock 22 in je einer kreisförmigen Ausnehmung eingelassen ist. Durch die kreisförmigen Ausnehmungen in den Grundplatten 16, 17 einerseits und den Lagerböcken 22 andererseits wird eine Relativverschiebung der Federn 23 zu den Lagerbolzen 24 unterbunden. Eine Relativverschiebung zwischen diesen beiden Elementen wird nur durch das Radialspiel der kreisförmigen Durchgangsbohrungen 27 innerhalb der Lagerböcke 22 zu dem glatten Schaft 26 der Lagerbolzen 24 ermöglicht. Dieses Radialspiel ist in unendlich vielen radialen Richtungen des Lagerbolzens 24 möglich. Hinzu kommt noch eine mögliche Kippbewegung senkrecht zur Zeichenebene der Fig. 2 sowie im Uhrzeigersinn und Gegenuhrzeigersinn der gleichen Figur. Alternativ kann die Feder 23 auch von einer mit ihrem einen Ende an der Grundplatte 16, 17 und mit ihrem anderen Ende am Lagerbock 22 angelenkten, nicht dargestellten Pneumatikfeder ersetzt werden.In all the figures, the respective spring 23 is formed from a cylindrical helical spring encompassing the smooth shaft 26 of the bearing bolt 24 with a radial spacing, each with one end 23a in the base plate 16, 17 and the other end 23b in the bearing block 22 circular recess is recessed. Due to the circular recesses in the base plates 16, 17 on the one hand and the bearing blocks 22 on the other hand, a relative displacement of the springs 23 to the bearing bolts 24 is prevented. A relative displacement between these two elements is only made possible by the radial play of the circular through bores 27 within the bearing blocks 22 relative to the smooth shaft 26 of the bearing bolts 24. This radial play is possible in an infinite number of radial directions of the bearing pin 24. In addition, there is a possible tilting movement perpendicular to the plane of FIG. 2 and clockwise and counterclockwise of the same figure. Alternatively, the spring 23 can also be replaced by a pneumatic spring, not shown, which is articulated at one end to the base plate 16, 17 and at the other end to the bearing block 22.

Wie aus den Fig. 1 und 3 hervorgeht, kann eine der Grundplatten, hier z.B. die Grundplatte 16, zweier zwischen sich das zu befettende Werkstück 11 aufnehmenden Befettungswalzen 12, 13 oder Reihen von diesen 12, 13 ortsfest angeordnet werden. Beide Grundplatten 16, 17 sind mit Seitenwangen 31 versehen, an denen jeweils ein Ende eines Druckmittelzylinders 19, 20 und einer Führung 21 befestigt ist. Dabei ist jeder Druckmittelzylinder 19, 20 an einem Ende über das freie Ende 32a seiner Kolbenstange 32 an einem L-förmigen Winkel 33 mittels einer Mutter 34 und einer Kontermutter 35 befestigt, wohingegen er am anderen Ende 20a über einen im Querschnitt U-förmigen Bügel 36 an den Seitenwangen 31 angelenkt ist. Über die Mutter 34 und die Kontermutter 35 kann die Einjustierung der Grundplatten 16, 17 zueinander erfolgen.As can be seen from FIGS. 1 and 3, one of the base plates, here for example the base plate 16, of two greasing rollers 12, 13 or rows of these 12, 13, which accommodate the workpiece 11 to be greased, can be arranged in a stationary manner. Both base plates 16, 17 are provided with side cheeks 31, on each of which one end of a pressure medium cylinder 19, 20 and a guide 21 are attached. Each pressure medium cylinder 19, 20 is at one end via the free end 32a its piston rod 32 attached to an L-shaped bracket 33 by means of a nut 34 and a lock nut 35, whereas at the other end 20a it is articulated on the side cheeks 31 via a bracket 36 with a U-shaped cross section. The base plates 16, 17 can be adjusted relative to one another via the nut 34 and the lock nut 35.

Die Führung 21 besteht in den Darstellungen aus einer Stange mit Kreisquerschnitt, die am Ende 21a mittels der Halterung 37 und am Ende 21b in einem Gleitlager 38 an einer Seitenwange 21 der beiden diametral gegenüberliegenden Grundplatten 16, 17 geführt ist. Die Gleitlager 37, 38 können auch aus Kugelführungen und die Druckmittelzylinder 19, 20 aus Pneumatikzylindern bestehen.The guide 21 consists in the representations of a rod with a circular cross section, which is guided at the end 21a by means of the holder 37 and at the end 21b in a slide bearing 38 on a side cheek 21 of the two diametrically opposite base plates 16, 17. The plain bearings 37, 38 can also consist of ball guides and the pressure medium cylinders 19, 20 of pneumatic cylinders.

Im zweiten Ausführungsbeispiel der Erfindung gemäß den Fig. 4 bis 6 sind mit den Fig. 1 bis 3 übereinstimmende Teile mit gleichen Bezugsziffern bezeichnet. Jedes Ausführungsbeispiel unterscheidet sich vom Ausführungsbeispiel der Fig. 1 bis 3 im wesentlichen dadurch, daß die Grundplatten 16, 17 mit mehreren Befettungswalzen 12, 13 mit sowohl koaxial nebeneinander als auch parallel, die jeweiligen Lücken der vorausgehenden Reihe der Befettungswalzen 12, 13 überlappenden Befettungswalzen oder deren Reihen bestückt sind.In the second exemplary embodiment of the invention according to FIGS. 4 to 6, parts which correspond to FIGS. 1 to 3 are designated by the same reference numbers. Each embodiment differs from the embodiment of FIGS. 1 to 3 essentially in that the base plates 16, 17 with a plurality of greasing rollers 12, 13 with both coaxially next to one another and parallel, the respective gaps of the preceding row of greasing rollers 12, 13 overlapping greasing rollers or whose rows are populated.

Wie aus Fig. 6 entnommen werden kann, ist am äußeren Randbereich 39 abstandsgleich und symmetrisch zur Symmetrieachse 40 je das Ende eines Druckmittelzylinders 19, 20 angeordnet. Im geometrischen Mittelbereich 41 einer jeden Seitenwange 31, in der Darstellung der Fig. 6 also exakt in der Symmetrieachse 40, ist das untere Ende 21a, der Führung 21 in einer Klemmschelle 37 gehalten, während das obere Ende 21b der Führung 21 in einem Gleitlager 38 gleitbar relativverschieblich geführt ist. Mit dieser Anordnung wird eine äußerst stabile sowie präzise Zuordnung mehrerer Befettungswalzen 12, 13 auf nur einer Grundplatte 16, 17 sichergestellt.As can be seen from FIG. 6, the end of a pressure medium cylinder 19, 20 is arranged on the outer edge region 39 at the same distance and symmetrically to the axis of symmetry 40. In the geometric middle range 41 of each side cheek 31, in the representation of FIG. 6 exactly in the axis of symmetry 40, the lower end 21a of the guide 21 is held in a clamp 37, while the upper end 21b of the guide 21 is slidably guided in a sliding bearing 38 is. With this arrangement, an extremely stable and precise assignment of several greasing rollers 12, 13 on only one base plate 16, 17 is ensured.

Unterstellt man in den beiden Ausführungsbeipielen gemäß den Fig. 1 bis 6 jeweils eine ortsfeste Anordnung der Grundplatte 16 und eine dazu relativ bewegliche Grundplatte 17, so kann nur die obere Grundplatte 17 mit ihren Befettungswalzen 13 von der Werkstückoberfläche 11b abgehoben werden, wohingegen das Werkstück 11 mit seiner Werkstückunterfläche 11a stets auf den Befettungswalzen 12 aufliegt und somit an dieser Fläche entsprechend durchgehend befettet wird.Assuming in each of the two exemplary embodiments according to FIGS. 1 to 6 a fixed arrangement of the base plate 16 and a base plate 17 that is relatively movable relative to it, only the upper base plate 17 with its greasing rollers 13 can be lifted off the workpiece surface 11b, whereas the workpiece 11 with its lower workpiece surface 11a always rests on the greasing rollers 12 and is therefore continuously greased on this surface accordingly.

Um jedoch in bestimmten Bedarfsfällen sowohl die Werkstückoberfläche 11b als auch die Werkstückunterfläche 11a nicht durchgehend, sondern nur in Teilbereichen mit den Befettungswalzen 12, 13 befetten zu können, müssen sowohl die Befettungswalzen 13 als auch die Befettungswalzen 12 von den ihnen zugeordneten Werkstückflächen 11b und 11a absetz- und erneut daran ansetzbar sein.However, in order to be able to grease both the workpiece surface 11b and the workpiece lower surface 11a continuously, but only in partial areas, with the greasing rollers 12, 13 in certain cases, both the greasing rollers 13 and the greasing rollers 12 must set apart from the workpiece surfaces 11b and 11a assigned to them - and be attachable to it again.

Eine dritte erfindungsgemäße Ausführungsform, mit welcher dies ermöglicht wird, ist in den Fig. 7 bis 9 dargestellt. Darin sind mit den Fig. 1 bis 6 übereinstimmende Teile mit gleichen Bezugsziffern bezeichnet. Bei der dritten Ausführungsform gemäß den Fig. 7 bis 9 sind die Grundplatten 16, 17 mit ihren Befettungswalzen 12, 13 gleichzeitig oder zeitverschieden an die Werkstückunterfläche 11a bzw. an die Werkstückoberfläche 11b ansetzbar. Zur Bewerkstelligung dieser Relativverschiebung benötigt jede dieser nunmehr verschieblichen Grundplatten 16, 17 eine Fixplatte 42, wobei zwischen den Grundplatten 16, 17 und den Fixplatten 42 an jedem Ende vier Pneumatikzylinder 19, 20 angeordnet sind. Dadurch können über diese Pneumatikzylinder 19, 20 die Grundplatten 16, 17 gegenüber den Fixplatten 42 auf der raumfesten Führung 21 mittels der verschieblichen Gleitlager 38 relativ bewegt und somit die Befettungswalzen 12, 13 entsprechend an die Werkstückunterlfäche 11a bzw. die Werkstückoberfläche 11b angesetzt werden und wieder davon abgehoben werden.A third embodiment according to the invention, with which this is made possible, is shown in FIGS. 7 to 9. Parts corresponding to FIGS. 1 to 6 are designated by the same reference numbers. In the third embodiment according to FIGS. 7 to 9, the base plates 16, 17 with their greasing rollers 12, 13 can be attached to the workpiece lower surface 11a or to the workpiece surface 11b simultaneously or at different times. To accomplish this relative displacement, each of these now displaceable base plates 16, 17 requires a fixed plate 42, four pneumatic cylinders 19, 20 being arranged between the base plates 16, 17 and the fixed plates 42 at each end. As a result, the base plates 16, 17 can be moved relative to the fixed plates 42 on the fixed guide 21 by means of the displaceable slide bearings 38 via these pneumatic cylinders 19, 20 and the greasing rollers 12, 13 can accordingly be attached to the workpiece lower surface 11a or the workpiece surface 11b and again be lifted off.

Dabei wird das Werkstück 11 von nicht dargestellten Führungsrollen abgestützt. Zur beidseitigen Beaufschlagung der Werkstücksflächen 11a und 11b sind die Kolben der Pneumatikzylinder 19, 20 beidseitig beaufschlagbar. Die letztbeschriebene Ausführungsform findet insbesondere Verwendung bei großen Arbeitsspalten zwischen den Befettungswalzen 12, 13, was beispielsweise bei Differentialweg-Pressen charakteristisch ist.The workpiece 11 is supported by guide rollers, not shown. The pistons of the pneumatic cylinders 19, 20 can be acted upon on both sides in order to act on the workpiece surfaces 11a and 11b on both sides. The last-described embodiment is used in particular with large working gaps between the greasing rollers 12, 13, which is characteristic, for example, in differential travel presses.

Claims (12)

Vorrichtung zum steuerbaren Befetten von Werkstücken in Band- oder Platinenform mit mehreren mit fettdurchlässigem Material versehenen, hohlen sowie koaxial zueinander ausgerichteten Befettungswalzen, die jeweils auf einer Hohlachse beidendig auf einem mit einer Grundplatte in Verbindung stehenden Lager angeordnet und über mindestens zwei Druckmittelzylinder und zwei Führungen an der Werkstückfläche ansetzbar sind, dadurch gekennzeichnet, daß das Lager (18) an jedem Ende (14a, 14b; 15a, 15b) der Hohlachse (14, 15) aus einem Lagerbock (22) besteht, der unter Wirkung einer sich gegen ihn (22) und der Grundplatte (16, 17) abstützenden Feder (23) über mindestens einen ein begrenztes Spiel in mehreren Freiheitsgraden zulassenden Lagerbolzen (24) auf der Grundplatte (16, 17) gehaltert ist, die über die Druckmittelzylinder (19, 20) und die Führungen (21) in Richtung auf die Werkstückfläche (11a, 11b) verstellbar ist.Device for the controllable greasing of workpieces in band or plate form with several grease-permeable, hollow and coaxially aligned greasing rollers, each arranged on a hollow axle at both ends on a bearing connected to a base plate and via at least two pressure medium cylinders and two guides of the workpiece surface, characterized in that the bearing (18) at each end (14a, 14b; 15a, 15b) of the hollow axis (14, 15) consists of a bearing block (22), which acts against it (22 ) and the base plate (16, 17) supporting spring (23) on at least one bearing bolt (24) allowing a limited play in several degrees of freedom is held on the base plate (16, 17) via the pressure medium cylinders (19, 20) and the Guides (21) in the direction of the workpiece surface (11a, 11b) is adjustable. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß jeder Lagerbock (22) von zwei symmetrisch zur Hohlachse (14, 15) sowie senkrecht auf der Grundplatte (16, 17) angeordneten Lagerbolzen (24) gehaltert ist.Device according to claim 1, characterized in that each bearing block (22) is held by two bearing bolts (24) arranged symmetrically to the hollow axis (14, 15) and perpendicular to the base plate (16, 17). Vorrichtung nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die Lagerbolzen (24) aus mit ihrem Kopf (25) in die Grundplatte (16, 17) eingesenkten Innensechskantschrauben mit glatten, im Querschnitt kreisrunden Schäften (26) bestehen, welche die Lagerböcke (22) in Kreisbohrungen (27) mit Radialspiel durchgreifen und an ihrer Austrittsstelle über ein Gewindeende (28) mit einer Mutter (29) verschraubt sind.Device according to claim 1 or 2, characterized in that the bearing bolts (24) have hexagon socket head screws (25) countersunk in the base plate (16, 17) with smooth shafts (26) with a circular cross-section, which pass through the bearing blocks (22) in circular bores (27) with radial play and are screwed to a nut (29) at their exit point via a threaded end (28). Vorrichtung nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß die jeweilige Feder (23) aus einer den glatten Schaft (26) des Lagerbolzens (24) mit radialem Abstand umgreifenden zylindrischen Schraubenfeder besteht, die mit ihrem einen Ende (23a) in der Grundplatte (16, 17) und mit ihrem anderen Ende (23b) in dem Lagerbock (22) in je einer kreisförmigen Ausnehmung eingelassen ist.Device according to one of claims 1 to 3, characterized in that the respective spring (23) consists of a cylindrical helical spring encompassing the smooth shaft (26) of the bearing bolt (24) with a radial spacing and having one end (23a) in the Base plate (16, 17) and with its other end (23b) in the bearing block (22) each in a circular recess. Vorrichtung nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß die Feder (23) von einer mit ihrem einen Ende an der Grundplatte (16, 17) und mit ihrem anderen Ende am Lagerbock (22) angelenkten Pneumatikfeder gebildet ist.Device according to one of claims 1 to 3, characterized in that the spring (23) is formed by a pneumatic spring articulated at one end to the base plate (16, 17) and at the other end to the bearing block (22). Vorrichtung nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß der Lagerbock (22) aus einem geteilten Spannbock besteht, zwischen dessen Teilen (22a, 22b) das Ende (14a, 14b, 15a, 15b) der Hohlachse (14, 15) mittels einer Schraubverbindung (30) drehunbeweglich eingespannt ist.Device according to one of claims 1 to 5, characterized in that the bearing block (22) consists of a split clamping block, between the parts (22a, 22b) of which the end (14a, 14b, 15a, 15b) of the hollow axis (14, 15) is clamped in a non-rotatable manner by means of a screw connection (30). Vorrichtung nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, daß eine der Grundplatten (16) zweier zwischen sich das zu befettende Werkstück (11) aufnehmenden Befettungswalzen (12, 13) oder Reihen von diesen (12, 13) ortsfest angeordnet ist, beide Grundplatten (16, 17) mit Seitenwangen (31) versehen sind und an jeder Seitenwange (31) einer Grundplatte (16, 17) das Ende eines Druckmittelzylinders (19, 20) und einer Führung (21) befestigt ist.Device according to one of claims 1 to 6, characterized in that one of the base plates (16) of two greasing rollers (12, 13) or rows of greases between them to hold the workpiece (11) to be greased this (12, 13) is arranged in a stationary manner, both base plates (16, 17) are provided with side cheeks (31) and on each side cheek (31) of a base plate (16, 17) the end of a pressure medium cylinder (19, 20) and a guide (21) is attached. Vorrichtung nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, daß am äußeren Randbereich (39) einer jeden Seitenwange (31) je das Ende eines Druckmittelzylinders (19, 20) und im geometrischen Mittelbereich (41) einer jeden Seitenwange (31) das gleitverschiebliche Ende (21a, 21b) einer Führung (21) angeordnet ist.Device according to one of claims 1 to 7, characterized in that at the outer edge region (39) of each side cheek (31) each the end of a pressure medium cylinder (19, 20) and in the geometric central region (41) of each side cheek (31) the sliding End (21a, 21b) of a guide (21) is arranged. Vorrichtung nach einem der Ansprüche 1 bis 8, dadurch gekennzeichnet, daß die Druckmittelzylinder (19, 20) an einem Ende über einen L-förmigen Winkel (33) und am anderen Ende über einen im Querschnitt U-förmigen Bügel (36) an den Seitenwangen (31) angelenkt sind.Device according to one of claims 1 to 8, characterized in that the pressure medium cylinders (19, 20) at one end via an L-shaped angle (33) and at the other end via a U-shaped bracket (36) on the side cheeks (31) are articulated. Vorrichtung nach einem der Ansprüche 1 bis 9, dadurch gekennzeichnet, daß die Führung (21) aus einer Stange mit Kreisquerschnitt besteht, die an beiden Enden (21a, 21b) in je einem Gleitlager (38) einer Seitenwange (31) zweier diametral gegenüberliegender Grundplatten (16, 17) geführt ist.Device according to one of claims 1 to 9, characterized in that the guide (21) consists of a rod with a circular cross-section, which at both ends (21a, 21b) in a slide bearing (38) of a side cheek (31) of two diametrically opposed base plates (16, 17) is performed. Vorrichtung nach einem der Ansprüche 1 bis 10, dadurch gekennzeichnet, daß die Führungen (21) aus bekannten Kugelführungen und die Druckmittelzylinder (19, 20) aus Pneumatikzylindern bestehen.Device according to one of claims 1 to 10, characterized in that the guides (21) consist of known ball guides and the pressure medium cylinders (19, 20) consist of pneumatic cylinders. Vorrichtung nach einem der Ansprüche 1 bis 11, dadurch gekennzeichnet, daß die Kolben der Pneumatikzylinder (19, 20) zum Ansetzen an die und zum Abheben von der Werkstückfläche (11a, 11b) beidseitig beaufschlagbar sind.Device according to one of claims 1 to 11, characterized in that the pistons of the pneumatic cylinders (19, 20) can be acted upon on both sides for attachment to and for lifting off the workpiece surface (11a, 11b).
EP94103150A 1993-03-31 1994-03-03 Device for greasing strip of plate-like workpieces Expired - Lifetime EP0622134B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4310501 1993-03-31
DE4310501A DE4310501C1 (en) 1993-03-31 1993-03-31 Device for controlled greasing of band-shaped workpieces - has bearing blocks, held on base plates via bearing pin

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EP0622134A1 true EP0622134A1 (en) 1994-11-02
EP0622134B1 EP0622134B1 (en) 1999-07-07

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EP (1) EP0622134B1 (en)
AT (1) ATE181859T1 (en)
DE (2) DE4310501C1 (en)
DK (1) DK0622134T3 (en)
ES (1) ES2135495T3 (en)

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CN107377290A (en) * 2017-07-06 2017-11-24 贵州紫云玉腾石业有限公司 A kind of Double surface gluing apparatus of marble slab
CN110814176A (en) * 2019-11-29 2020-02-21 吉林大学 Continuous forming method for curved surface part by adopting flexible roller and elastic roller

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CN110813638A (en) * 2019-11-19 2020-02-21 利辛县雨果家居有限公司 Gluing device for textiles
CN112676112B (en) * 2020-12-15 2022-02-18 宁波华昱化学材料有限公司 Coating brushing device
CN113600434A (en) * 2021-07-07 2021-11-05 庄佩珊 Vacuum insulation panel oiling station
CN116727544B (en) * 2023-08-16 2023-11-03 宁波德洲精密电子有限公司 Stamping die for manufacturing lead frame

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CN107377290A (en) * 2017-07-06 2017-11-24 贵州紫云玉腾石业有限公司 A kind of Double surface gluing apparatus of marble slab
CN110814176A (en) * 2019-11-29 2020-02-21 吉林大学 Continuous forming method for curved surface part by adopting flexible roller and elastic roller

Also Published As

Publication number Publication date
EP0622134B1 (en) 1999-07-07
DK0622134T3 (en) 1999-11-22
ATE181859T1 (en) 1999-07-15
DE4310501C1 (en) 1994-04-07
DE59408454D1 (en) 1999-08-12
ES2135495T3 (en) 1999-11-01

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