WO1983003992A1 - Ameliorations relatives a l'assemblage d'anneaux de precision sur des pieces a usiner - Google Patents

Ameliorations relatives a l'assemblage d'anneaux de precision sur des pieces a usiner Download PDF

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Publication number
WO1983003992A1
WO1983003992A1 PCT/GB1983/000132 GB8300132W WO8303992A1 WO 1983003992 A1 WO1983003992 A1 WO 1983003992A1 GB 8300132 W GB8300132 W GB 8300132W WO 8303992 A1 WO8303992 A1 WO 8303992A1
Authority
WO
WIPO (PCT)
Prior art keywords
workpiece
rings
workpieces
onto
stack
Prior art date
Application number
PCT/GB1983/000132
Other languages
English (en)
Inventor
Arthur Pearson
Original Assignee
George Salter & Co. Limited
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by George Salter & Co. Limited filed Critical George Salter & Co. Limited
Publication of WO1983003992A1 publication Critical patent/WO1983003992A1/fr

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Classifications

    • 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
    • B23P19/00—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes
    • B23P19/04—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes for assembling or disassembling parts
    • B23P19/08—Machines for placing washers, circlips, or the like on bolts or other members
    • B23P19/084—Machines for placing washers, circlips, or the like on bolts or other members for placing resilient or flexible rings, e.g. O-rings, circlips

Definitions

  • This Invention relates to assembling precision rings, for example circlips, on workpieces and more particularly to apparatus and method for automatically dispensing and locating precision rings on workpieces.
  • precision rings is used herein to embrace retaining rings and circlips such as are commonly used as retaining elements arranged to be located, usually in grooves, on shafts or in cylindrical bores.
  • apparatus for automatically assembling precision rings onto workpieces comprising a holder capable of holding at least one stack of said rings, dispensing means capable of dispensing said rings Individually from said at least one stack adjacent a respective workpiece at an assembly station, advancing means capable of advancing workpieces successively, relative to the dispensing means, to the assembly station, and push-on locating means capable of locating a respective ring on a respective workpiece when said workpiece is at said assembly station.
  • a method of automatically assembling precision rings onto workpieces comprising : (a) bringing a stack of precision rings and individual workpieces into mutually adjacent relationship; (b) dispensing rings individually from said stack to respective workpieces by way of dispensing means; (c) advancing workpieces successively relative to the dispensing means; (d) locating respective ones of said rings on said workpieces by way of push-on locating means.
  • the dispensing means, advancing means and push-on locating means are all operable in time-synchronised manner, so that rings may be assembled on respective workpieces in a fully automated production run.
  • a holder is provided which is capable of holding several stacks of rings and, preferably, sensing means is provided to sense when there is a pre-set number of rings, for example zero, left in the or each stack. This may be done directly, for example by sensing the absence of any rings, or indirectly, either by sensing (counting) for example how many rings have been dispensed from a stack or by any other convenient means, for example by sensing the number of assembled workpieces moving past a point.
  • Sensing a pre-set number of rings in a stack in this way indicates that another stack of rings is needed and where the holder carries several stacks of rings another stack of rings may be automatically Indexed by the sensing means relative to the dispensing means.
  • Sensing means may also be provided to ensure that rings are being correctly assembled on workpieces and the apparatus may be automatically shut down if this is not the case.
  • the above-mentioned holder carries at least one magazine having tubular columns for individual stacks of rings, and preferably, the magazine is axially rotatable on the holder to index columns relative to the dispensing means.
  • the holder comprises radial arms extending from a central member, arranged vertically in use, and each arm is capable of carrying a magazine.
  • the arms are rotatable about the axis of the central member to present magazines successively to the dispensing means.
  • three radial arms are provided.
  • Means may be provided for automatically picking-up full magazines and/or rejecting empty ones.
  • the or each magazine may be generally cylindrical and the columns may, conveniently, be equiangularly spaced about the axis of the respective magazine.
  • Each column is, preferably, provided with a respective slide cover closing off the bottom of said column.
  • a stack of rings is capable of being supported on each respective slide cover.
  • the slide covers are arranged to slide radially inwards towards the axis of the respective magazine, preferably, against biassing means so that the bottom of a respective stack of rings drops onto the dispensing means.
  • the or each stack may be spring loaded upwardly in use in a respective column and with slide covers provided closing off the tops of the columns.
  • a respective cover may be slid back so that the top of a respective stack may be urged onto the dispensing means.
  • Any alternative slide cover arrangement may be provided to close-off the top or bottom of the columns as appropriate, for example, an indexing plate cover.
  • the slide cover may in some embodiments be part of the dispensing means.
  • the or each magazine is respectively co-operable with the dispensing means so that rings may be dispensed from one end, either the top or the bottom, of said at least one stack and preferably, where slide covers are provided as aforesaid, the dispensing means is advanceable relative to a respective magazine to move a respective slide cover to uncover the top or bottom of a stack.
  • the or each magazine is reciprocatable against biassing means along a respective arm of the holder.
  • the dispensing means comprises first and second coextensive plates, and each plate is provided with an open-ended hole of diameter at least equal to the outside diameter of a ring of the stack, the arrangement being such that, in use, a ring of the stack is capable of being located in a hole in the first plate whilst being in contact with the second plate, and on relative sliding movement of the plates said ring is moved with the first plate, in said hole in the first plate, relative to the second plate until the holes are coaxially arranged and said ring drops through the holes towards a workpiece therebelow.
  • the plates may be moved relative to a respective magazine when a respective radial cover is radially aligned with the plates, so that on said relative movement said respective radial cover is engaged in endwise manner by the plate to uncover one of the top and bottom of a respective stack.
  • the push-on locating means may comprise a pneumatically operated tube advanceable in use towards a workpiece to push a ring of the stack onto the workpiece in its correct assembled position.
  • the tube may be arranged, in use, to pass through said holes or not depending on the arrangement of the apparatus.
  • the tube may be reciprocatable in use, either vertically or, in alternative embodiments horizontally or at any other convenient angle for assembling a ring of the stack onto a workpiece.
  • the apparatus may further include one or more ring transfer guide members in the form of tapered mandrels, each positionable over or into a respective workpiece onto which a respective ring of the stack can drop before operation of the push-on locating means. In this way a respective ring is held ready on the mandrel and may be pushed over the mandrel into correct position on a respective workpiece by the push-on locating means.
  • the apparatus may include means to cycle the or each mandrel onto a production run of workpieces.
  • This cycling means may be synchronized to place a mandrel on a workpiece ready for a ring to drop onto, and then remove the mandrel from the workpiece once the push-on locating means has correctly located a ring onto the workpiece, and then re-position the mandrel onto another workpiece being advanced relative to the dispensing means to bring it into the respective assembly station. Where only one mandrel is provided this is, preferably, the next successive workpiece.
  • the or each mandrel may be arranged to pivot in a chosen plane, for example a vertical plane, to adjust the orientation of a ring individually dispensed from the stack before being located in a new orientation on a workpiece.
  • the advancing means is conveniently a conveyor belt.
  • FIGURE 1 shows a plan view of apparatus for automatically assembling precision rings onto workpieces in accordance with the present invention
  • FIGURE 2 shows a perspective view of a stage in the method, showing a detail of dispensing means
  • FIGURE 3 shows a side view detail of modified apparatus which is partly in section
  • FIGURE 4 shows a cut-away perspective view of a further modification to the apparatus
  • FIGURE 5 shows a pneumatic circuit for the modification of FIGURE 4;
  • FIGURE 6 shows a further modification for the application of a circlip into an internal groove on a workpiece.
  • Figure 1 shows apparatus for assembling precision rings onto workpieces including a holder 1, suitable for precision rings such as circlips, located to one side of workpieces 2 on advancing means in the form of conveyor belt 3.
  • the holder 1 comprises a fixed central member 1a and three radial arms 1b, 1c, 1d (shown equiangularly spaced about member 1a in Figure 1) which are rotatable about member la as represented by arrow A in Figure 1.
  • the arms 1b, 1c, 1d may be individually rotatable or if preferred rotatable in unison about member la and may be rotatable in a clockwise and/or an anti-clockwise direction.
  • arms 1b, 1c, 1d may be fixed relative to member 1a and member 1a is arranged to be rotatable on its axis X.
  • the arms are robotically operated.
  • Respective ring magazines 4, 5, 6 are pivotally located at the ends of respective arms 1b, 1c, 1d. Each magazine 4, 5, 6 may hold
  • each magazine is generally of cylindrical shape (see Figure 2) and comprises upper and lower plates 7, 8 supporting columns 9 dimensioned to receive individual stacks of precision rings, in this case circlips.
  • the columns 9 are open-topped and the bottom plates 8 are equipped with spring-loaded radial slide covers (not shown) which can be reciprocated radially inwardly at C on Figure 1 against spring biasing to open and close the bottom of a respective one of the columns 9.
  • Dispensing means 10 extends radially from the bottom of magazine 4, in a direction across the conveyor belt 3 towards an assembly station at the centre of the row of workpieces 2 illustrated In Figure 1.
  • the dispensing means 10 consists of two plates 10a, 10b, and plate 10a overlies and is coextensive with plate 10b.
  • Plate 10a is reciprocatable radially relative to magazine 4 and is provided with an open-ended hole H matching the outside diameter of the circlip.
  • the plate 10a is slidable in direction of arrow D from a first position relative to the lower plate 10b in which the hole H is located immediately under the bottom of one of the columns 9, specifically column 9a in the FIGURES, to a second position (shown schematically in FIGURE 2) in which hole H is co-axial with a hole of identical dimensions at one end of lower plate 10b.
  • FIGURE 2 shows a particular workpiece W having an upper end into which a tapered mandrel M has been located.
  • This workpiece W 1 is at the assembly station and a circlip C Is shown on the mandrel which is to be located in groove 11 on workpiece W 1 by push-on locating means in the form of pneumatically-operated reciprocatable cylinder 12.
  • the relative directions of advancement of the workpiece production line (workpieces W 1 and W 2 in FIGURE 2) and the push-on locating means are represented by arrows E and F in FIGURE 2.
  • Workpiece W 2 is about to receive a tapered mandrel M 2 prior to having a circlip located in its groove 13.
  • FIGURE 1 shows schematically means for introducing mandrel M 2 onto a workpiece W 2 just prior to advancement to the assembly station and dispensing means 10. It also shows means for removing the mandrel M 2 from the workpiece W 2 just after a circlip has been located in its groove 13, and means for introducing mandrel M 2 onto another workpiece. In this manner a cycle of locating the same mandrel or mandrels on and off successive workpieces may be established.
  • the arms 1b, 1c, 1d may be arranged to automatically pick up fullyloaded magazines individually and/or automatically reject empty magazines.
  • the arms 1b, 1c, 1d may be rotated as necessary through arrow A, until one of the magazines 4, 5, 6, more specifically magazine 4 as shown in FIGURE 1, Is arranged adjacent dispensing means 10.
  • This magazine can be rotated as necessary in the direction of arrow B until one of the filled columns 9, more specifically column 9a, is positioned correctly as shown in FIGURE 1 relative to the dispensing means 10.
  • Both plates 10a, 10b of the dispensing means may, in this case, be radially advanced towards axis Y to move the radial slide cover in endwise manner (not shown), located directly under column 9, so that the stack of circlips rests on the lower plate 10b and the lowermost circlip of the stack is located in hole H of plate 10a.
  • the workpieces 2 are advanced in time-synchronized manner from left to right of FIGURE 1 by the conveyor belt 3, and workpiece W 1 equipped with tapered mandrel M 1 is located at the assembly station beneath the hole in the lower plate 10b.
  • the top plate 10a moves slidably with the lowermost circlip in the direction of arrow D until the holes in the upper and lower plates are co-axially aligned so that the circlip drops through the holes onto the tapered mandrel M 1 .
  • the cylinder 12 is pneumatically advanced through the holes over the mandrel M 1 into engagement with the circlip (shown as C 1 in FIGURE 2) which is forced over the mandrel M 1 and correctly positioned into the groove 11.
  • the cylinder 12 is then retracted, the next workpiece W 2 is advanced towards dispensing means 10 and workpiece W 1 is advanced away from the dispensing means.
  • Mandrel M 1 is removed from workpiece W 1 just as workpiece W 2 is advanced into position beneath the aligned holes in plates 10a, 10b.
  • circlips are collected individually from the bottom of the stack In column 9a by the reciprocating plate 10a, and are dropped onto respective mandrels.
  • the magazine 4 may be indexed automatically so that the next column 9b is located in a ring-dispensing position.
  • This indexing may be arranged to occur automatically by sensing means (not shown) which, for example, senses when a particular column is empty or when a particular number of rings have been dispensed from a column, and then automatically indexes the magazine. Similarly, once an entire magazine is empty, this may be sensed and an arm or arms automatically rotated to present another magazine, magazine 5 as shown, to the dispensing means.
  • the apparatus may be modified so that only one magazine is provided, and/or so that as a magazine is rotated the bottom or top of a column is automatically uncovered with a stack engaging one of the plates 10a, 10b (i.e. the slide covers need not be radial slide covers). Additionally, where radial covers are provided each magazine may, in some embodiments, conveniently be reciprocatable against spring biassing along the arms towards axis X.
  • FIGURE 3 shows a section through one of the columns 9 and six Individual circlip rings R stacked at the bottom of the column. Individual circlip rings such as the particular circlip indicated at C 1 can drop onto the mandrel M as previously explained but now the mandrel is arranged to pivot in time-synchronized manner about axis Z of pivot pin P to the position shown partly in dashed lines.
  • the mandrel M fits over the workpiece, which is in the form of a horizontal shaft S, in this position and push-on locating means 12 which is now horizontally orientated can be advanced to push circlip C 1 into groove S 1 on the shaft. Locating means 12 is then retracted and the mandrel M is pivoted to its inclined position to receive another circlip.
  • FIGURE 4 shows a part cut-away perspective view of a modification to the mandrel arrangement shown in FIGURES 1 and 2 and also to the push-on locating means.
  • this modification only one mandrel M 3 is used for the application of circlips onto a workpiece (not shown).
  • the mandrel M 3 is joined to a mandrel carrier M c which is vertically reciprocatable with the mandrel M 3 and movable downwardly against spring Massing means in the form of helical coil compression spring 14.
  • the mandrel carrier M c is reciprocatable along two vertical guide rods 15 which are spaced from one another and the rods
  • the coil spring 14 is wound around one of the rods and acts against the underside of the carrier M c and on a base 16 of the apparatus and effectively spring loads the mandrel carrier M c into contact with the underside of a horizontal floor 17 of the apparatus.
  • the mandrel Since a circlip is introduced onto a workpiece by being passed completely over the top of the mandrel M 3 and along the entire length of the mandrel, the mandrel is joined to the carrier M c by a thin vertical web portion P which is of a thickness less than the gap between the ends of the circlip so that the motion of the circlip along the mandrel is unhindered as the circlip Is passed along the mandrel, the web portion P being positioned in said gap.
  • a three-legged spider 18 (only legs shown) is located above the floor 17 and is part of circlip push-on locating means.
  • the legs of the spider 18 replace the push-on locating tube shown in FIGURE 2 and are perhaps more convenient since they are capable of flexing to a limited extent whilst being used to push a circlip over the tapered mandrel M 3 .
  • the spider 18 is vertically reciprocatable and the legs of the spider are equiangularly spaced and can be advanced downwardly through a hole 19, which hole Is vertically above the mandrel M 3 and in floor 17.
  • Hole 19 is provided with guide portions 19a conforming to the contour of the legs in order to provide some measure of guidance or alignment of the legs on passage of the legs through the hole whilst pushing a circlip over the mandrel M 3 .
  • FIGURE 4 The operation of the circlip assembly apparatus shown in FIGURE 4 will now be described.
  • the movable components of the apparatus described are arranged to co-operate in a synchronised manner under the control of a pneumatic feedback circuit (see FIGURE 5).
  • a circlip is picked up from a magazine stack (not shown) in a magazine holder
  • a slide dispensing means (not shown) all of which may be of the same general form as shown in FIGURES 1 and 2, and the circlip is advanced in direction of arrow 20 and through the hole 19 in the direction of arrow 20' onto the mandrel M 3 held in its uppermost position.
  • the spider 18 is advanced downwardly and the legs pass through hole 19 and engage the flat upper edge of the circlip.
  • the mandrel M 3 and the carrier M c are thereby moved downwardly against the blassing provided by spring 14 until the bottom of the mandrel engages a workpiece (not shown) located directly underneath the mandrel at the assembly station.
  • the workpiece will have been advanced to Its location by suitable advancing means such as a conveyor belt moving in the direction of arrow E in time-synchronised manner.
  • suitable advancing means such as a conveyor belt moving in the direction of arrow E in time-synchronised manner.
  • the workpiece could be removed manually or by automatic means.
  • the legs of spider 18 continue to be moved downwardly thereby pushing the circlip over the tapered end of the mandrel (while temporarily expanding the circlip) onto the workpiece and into an external groove on the workpiece (see FIGURE 2).
  • the correct location of the circlip is sensed by appropriate sensing means (not shown), preferably pressure sensitive means controlling the stroke of an actuator which operates the spider, and the spider 18 is returned automatically to its former position above floor 17 for assembly of the next circlip on another workpiece.
  • the mandrel M 3 is also moved back to its uppermost position under the action of compression spring 15 on mandrel carrier M c .
  • FIGURE 5 shows a suitable pneumatic feedback circuit 21 for use with the apparatus shown in FIGURE 4.
  • a similar circuit may be envisaged for use with the apparatus shown in FIGURES 1 and 2.
  • the pneumatic circuit 21 shows a schematic arrangement for the co-operative control of two double-acting pressure cylinders 22 and 23.
  • Cylinder 22 is arranged horizontal and may be arranged in endwise manner (for example under floor 17 in FIGURE 4) with slide dispensing means to control the horizontal reciprocation of said dispensing means by reciprocating movement of its piston 22a to feed circlips one by one onto the mandrel M 3 .
  • Cylinder 23 is vertically-arranged and its piston 23a may be arranged to actuate vertical reciprocation of the spider 18 in a readily envisaged manner.
  • a circlip is picked up from the bottom of a magazine stack and advanced to hole 19.
  • the slide dispensing means is moved back to pick up another circlip and cylinder 23 is then pressurized to move the legs of spider 18 downwardly with the circlip and mandrel.
  • Cylinder 23 is pressure sensitive so that its piston 23a has a variable stroke and once the circlip is located in a groove in a workpiece, bearing against a side wall of the groove which forms an abutment surface, a predetermined pressure is built up which returns the piston 23a and spider 18 to its previous position above floor 17.
  • the cycle may then be repeated to locate further circlips on further workpieces and this operation may be synchronised with the movement of the workpiece advancing means (for example, conveyor belt).
  • the present invention has so far been described in relation to apparatus for assembling a circlip into an external groove on a workpiece by means of a tapered mandrel.
  • Circlips of this type are known as 'external' circlips but the present invention is equally applicable to the assembling of 'internal' circlips (circlips for internal grooves in workpieces) onto a workpiece using, for example, a tapered sleeve as a ring transfer guide member.
  • FIGURE 6 shows how this is done.
  • a tapered sleeve S T replaces the mandrels previously described and is positioned on the workpiece W T ; a tool T T is advanced axially to push the circlip C T down the internal taper of sleeve S T thereby contracting the circlip until it expands into its location groove S T on workpiece W T .

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Automatic Assembly (AREA)

Abstract

Des pièces à usiner (W1, W2) défilent sur une bande transporteuse en synchronisme par rapport à un organe de distribution de segments d'arrêt (10) se composant de deux plaques à recouvrement (10a et 10b). La plaque supérieure (10a) accomplit un mouvement alternatif radial par rapport à un magasin indexé (4) qui possède des colonnes tubulaires (9) contenant des piles de segments d'arrêt. Cette plaque supérieure (10a) recueille un segment d'arrêt (C1) du fond d'une pile dans un trou (H) et le transporte jusqu'à un trou de dimensions identiques dans la plaque inférieure (10b) où il tombe dans un mandrin conique (M1, M2) disposé en dessous. Un outil poussoir pneumatique de positionnement (12) se déplace vers le bas en direction de la flèche (F) pour déplacer le segment d'arrêt (C1) sur le mandrin (M1, M2) dans une rainure de positionnement (11, 13) sur la pièce à usiner (W1, W2). L'invention permet l'assemblage automatique aussi bien des segments d'arrêt "extérieurs" qu'"intérieurs" sur des pièces à usiner et prévoit des organes pour l'assemblage des segments d'arrêt sur une pièce à usiner orientée selon un angle donné, par exemple horizontalement plutôt que verticalement comme dans l'illustration. L'outil poussoir de positionnement (12) peut être actionné par des organes d'actionnement sensibles à la pression à course variable (23).
PCT/GB1983/000132 1982-05-06 1983-05-06 Ameliorations relatives a l'assemblage d'anneaux de precision sur des pieces a usiner WO1983003992A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB8213167 1982-05-06
GB8213167 1982-05-06

Publications (1)

Publication Number Publication Date
WO1983003992A1 true WO1983003992A1 (fr) 1983-11-24

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PCT/GB1983/000132 WO1983003992A1 (fr) 1982-05-06 1983-05-06 Ameliorations relatives a l'assemblage d'anneaux de precision sur des pieces a usiner

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EP (1) EP0108087A1 (fr)
AU (1) AU1519383A (fr)
WO (1) WO1983003992A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2590960A1 (fr) * 1985-12-02 1987-06-05 Mcneil Akron Repiquet Sarl Dispositif pour la pose de joints d'etancheite dans des gorges internes de pieces telles par exemple que des tubes ou des tuyaux
FR2649349A1 (fr) * 1989-07-04 1991-01-11 Rafer Sa Dispositif autorisant l'introduction automatique de circlips dans des rainures etablies interieurement ou exterieurement sur des corps cylindriques
FR2688837A1 (fr) * 1992-03-23 1993-09-24 Plastic Omnium Cie Palier coulissant muni d'une garniture interieure.
CN112264793A (zh) * 2020-10-16 2021-01-26 芜湖市元山机械制造有限公司 一种卡簧安装设备

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3101528A (en) * 1960-11-15 1963-08-27 Waldes Kohinoor Inc Dispenser for retaining rings
US3137932A (en) * 1960-11-15 1964-06-23 Waldes Kohinoor Inc Retaining ring dispensing and applying means
DE1247978B (de) * 1958-02-01 1967-08-17 Telefunken Patent Vorrichtung zur Spannring-Montage, bei der der auf eine Welle, einen Zapfen od. dgl. aufzusetzende Spannring aufgeweitet wird
DE2440996A1 (de) * 1974-08-27 1976-03-18 Precismeca Gmbh Verfahren und vorrichtung zur montage gespaltener sicherungsringe in ringnuten zylindrischer werkstuecke
US4047276A (en) * 1975-11-28 1977-09-13 Designeers Midwest Apparatus for dispensing rings and for applying piston rings to pistons
US4212096A (en) * 1977-08-20 1980-07-15 Tokico Ltd. Automatic resilient ring fitting device

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1247978B (de) * 1958-02-01 1967-08-17 Telefunken Patent Vorrichtung zur Spannring-Montage, bei der der auf eine Welle, einen Zapfen od. dgl. aufzusetzende Spannring aufgeweitet wird
US3101528A (en) * 1960-11-15 1963-08-27 Waldes Kohinoor Inc Dispenser for retaining rings
US3137932A (en) * 1960-11-15 1964-06-23 Waldes Kohinoor Inc Retaining ring dispensing and applying means
DE2440996A1 (de) * 1974-08-27 1976-03-18 Precismeca Gmbh Verfahren und vorrichtung zur montage gespaltener sicherungsringe in ringnuten zylindrischer werkstuecke
US4047276A (en) * 1975-11-28 1977-09-13 Designeers Midwest Apparatus for dispensing rings and for applying piston rings to pistons
US4212096A (en) * 1977-08-20 1980-07-15 Tokico Ltd. Automatic resilient ring fitting device

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2590960A1 (fr) * 1985-12-02 1987-06-05 Mcneil Akron Repiquet Sarl Dispositif pour la pose de joints d'etancheite dans des gorges internes de pieces telles par exemple que des tubes ou des tuyaux
FR2649349A1 (fr) * 1989-07-04 1991-01-11 Rafer Sa Dispositif autorisant l'introduction automatique de circlips dans des rainures etablies interieurement ou exterieurement sur des corps cylindriques
FR2688837A1 (fr) * 1992-03-23 1993-09-24 Plastic Omnium Cie Palier coulissant muni d'une garniture interieure.
CN112264793A (zh) * 2020-10-16 2021-01-26 芜湖市元山机械制造有限公司 一种卡簧安装设备
CN112264793B (zh) * 2020-10-16 2022-04-26 芜湖市元山机械制造有限公司 一种卡簧安装设备

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Publication number Publication date
EP0108087A1 (fr) 1984-05-16
AU1519383A (en) 1983-12-02

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