EP2830824A1 - Outil de montage pour positionner une rondelle sur une surface d'appui - Google Patents
Outil de montage pour positionner une rondelle sur une surface d'appuiInfo
- Publication number
- EP2830824A1 EP2830824A1 EP13712882.3A EP13712882A EP2830824A1 EP 2830824 A1 EP2830824 A1 EP 2830824A1 EP 13712882 A EP13712882 A EP 13712882A EP 2830824 A1 EP2830824 A1 EP 2830824A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- washer
- fixed member
- bearing surface
- mounting tool
- tool
- 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.)
- Withdrawn
Links
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
- B23P19/001—Article feeders for assembling machines
- B23P19/006—Holding or positioning the article in front of the applying tool
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING, OR HOLDING
- B25B13/00—Spanners; Wrenches
- B25B13/48—Spanners; Wrenches for special purposes
- B25B13/481—Spanners; Wrenches for special purposes for operating in areas having limited access
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING, OR HOLDING
- B25B23/00—Details of, or accessories for, spanners, wrenches, screwdrivers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING, OR HOLDING
- B25B23/00—Details of, or accessories for, spanners, wrenches, screwdrivers
- B25B23/02—Arrangements for handling screws or nuts
- B25B23/08—Arrangements for handling screws or nuts for holding or positioning screw or nut prior to or during its rotation
- B25B23/10—Arrangements for handling screws or nuts for holding or positioning screw or nut prior to or during its rotation using mechanical gripping means
- B25B23/101—Arrangements for handling screws or nuts for holding or positioning screw or nut prior to or during its rotation using mechanical gripping means for hand-driven screw-drivers
Definitions
- the present invention relates to a mounting tool for positioning a washer on a bearing surface, this bearing surface being located in particular in a hard-to-reach area of a workpiece. It can be applied, by way of non-limiting example of the object and scope of the present invention, to the installation of a bearing washer of assembly screws in a countersink of a cylinder head vehicle engine.
- countersink is meant, in the rest of the text, a housing or a small cylindrical bore, generally machined at the hole of a hole and intended to serve as a bearing surface of a washer or to embed a screw-type element, for example with hexagon socket.
- the document FR 2 957 546 describes a method of setting up an assembly screw support washer in a housing arranged in an engine cylinder head, which comprises the steps following:
- the cylinder head is equipped with at least one guide rail, made of foundry with the cylinder head, which opens into the housing,
- the washer is placed by sliding along the guide ramp until the washer is received in the housing, the sliding being achieved by gravity or by means of a tool.
- a stop made of foundry with the breech or reported on it, is arranged at the edge of the housing, facing the guide ramp.
- the object of the present invention is to provide a new mounting tool, improved over the tools and mounting methods of the prior art, the purpose of which is to allow positioning a washer on a surface located in an inaccessible area of a room, particularly but not exclusively to position a support washer of a bolt assembly bolt in its countersink, especially when the latter is difficult to access and not very visible.
- Another object of the present invention is to provide such a washer mounting tool in a difficult access area, which allows a faster assembly and better quality than the assemblies of washers made with the means and according to the methods known from the prior art.
- the invention firstly relates to a mounting tool for positioning a washer on the support surface of a workpiece disposed in a substantially horizontal plane, such that said mounting tool comprises:
- This mounting tool ensures a correct and reproducible positioning of the washers, even and especially in areas of reduced accessibility: when the operator can not manually position the washer in a natural way, that is to say ie by presenting the washer by simple approach by translation of the washer in horizontal position on a support surface also horizontal, this tool makes it possible to approach the washer of the support surface by the tool by translation in vertical position of the washer, which allows to insert it into a component, especially a cylinder head engine having special reliefs, including vertical walls close to the bearing surfaces on which the washers are to be placed. Then, when the washer in vertical position is in the immediate vicinity of its bearing surface, the tool according to the invention makes it possible to exactly control the tilting and then the centering of the washer on the bearing surface. These different steps can be triggered by the operator or automated.
- the holding means in vertical or oblique position comprises a fixed member and a movable member relative to said fixed member, together defining a jaw adapted to maintain the upper portion of the washer.
- the guide means define at least one oblique guide surface on which the washer once released from the holding means will slide and / or tilt towards the bearing surface.
- the guide means advantageously define two obliquely inclined guide surfaces inclined relative to the vertical and arranged at different heights, one supporting at least part of the inner edge of the washer and the other part at least from his outer song.
- the bearing surface delimits a counterbore, as defined above, and the centering means are integral with the guide means and define a shape contour complementary to the counterbore and being inserted into this one when the puck is released.
- the mounting tool comprises a support oriented substantially horizontally, on which is secured at least a fixed member cooperating with a movable member, the fixed member being oriented substantially vertically, the upper part of the fixed member defining with the movable member a jaw for holding the washer in its upper part, the intermediate portion of the fixed member delimiting guide surfaces of the washer once released from the jaw by retraction of the movable member, and the lower part of the fixed member delimiting a contour adapted to be inserted into the countersink of the bearing surface of the coin for the puck.
- the tool comprises a plurality of fixed and movable members, the movable members being actuated by a common actuating means, thus easily allowing the simultaneous positioning of a plurality of washers.
- the invention also relates to a method of implementing the editing tool described above, and which comprises the steps:
- the method is such that when the support surface of the workpiece defines a counterbore, that the positioning of the washer on it is centered by an insertion of a part of the fixed member. in said counterbore.
- the invention relates more particularly to the mounting tool and its implementation method described above, where the washer is a support washer of a vehicle engine thermal cylinder head assembly screw automobile, and where the support washer is to be positioned on a countersink of the cylinder head, at the entrance of the bore for receiving the assembly screw.
- the present invention also relates to a vehicle, in particular a motor vehicle, equipped with a heat engine cylinder head, wherein the valves are for example controlled by pushers, and such that, in this engine, the washers of the bolts of assembly of the cylinder head are put in place by means of a mounting tool according to that described above.
- FIG. 1 is a schematic longitudinal sectional view of a bearing washer of a motor vehicle engine head bolt, the washer being shown in its mounted position in its counterbore at the entrance
- FIG. 2 is a diagrammatic bottom view showing the mounting tool of the invention for placing the bolt support washer. assembly in the cylinder head of Figure 1
- Figure 3 is a top view of the mounting tool shown in Figure 2
- FIGS. 4 to 7 are schematic longitudinal sectional views showing the operation of the mounting tool of FIGS. 2 and 3 and, consequently, the kinematics of the installation of the screw support washer; assembly in its counterbore in the cylinder head.
- the cylinder head 20 is a cylinder head of a thrust distribution type heat engine, of relatively complex architecture, in which the establishment of the bearing washers, reference 10, assembly screws, reference 40, the bolt is difficult, for reasons of accessibility to countershafts or bearing surfaces, reference 21, provided to receive the washers 10.
- ZZ ' represents the axis of the assembly screw 40, therefore the axis of the bore 22 which receives the screw 40.
- the washer 10 is of thickness "e", of external diameter "D" and of internal diameter "d”.
- the housing 21 (countersink) formed in the yoke 20 is dimensioned in diameter and depth to receive the washer 10.
- the reference 22 designates the receiving bore in the yoke of the assembly screw 40.
- this housing 21 is located in an inaccessible area of the cylinder head 20, due to the presence of a breech portion, illustrated by the reference 20A, located above and in the axis of the bore 22 of the assembly screw 40.
- the washer 10 can not be easily moved vertically, and can not in particular be translated vertically remaining disposed itself in a horizontal plane, through the yoke portion 20A to reach the countersink 21. It is therefore necessary to carry out the mounting of the washer 10 according to a different kinematic.
- the mounting of the washer 10 is achieved by means of a tool, called “mounting tool", of general reference 30, which is described below, with reference to FIGS. 3.
- This tool 30 comprises a support plate 31 substantially of parallelepipedal shape and comprising four centralizers 32 disposed in the vicinity of the four corners of the plate, projecting from the underside of said plate.
- the support plate 31 also carries 8 pairs of fixed / movable member 33, described in more detail below in Figures 4 to 7, and a device 34 for common actuation of the movable members.
- Each pair of fixed member / movable member is adapted to position a washer, the tool 30 can thus simultaneously deposit 8 washers on the cylinder head.
- the tool alternatively, may comprise a larger or smaller number of pairs of fixed / mobile members, only one pair. It is also possible, alternatively, to provide individual actuation of each movable member, allowing simultaneous or non-simultaneous positioning of the washers.
- the support plate 31 also comprises two gripping handles 35 fixed on its upper face.
- the operating principle of the tool 30 is generally as follows:
- the operator takes the support plate 32 by its handles 35,
- the operator places the support plate 31 above the cylinder head 20 in position relative to the cylinder head using the centering devices 32,
- the operator activates the actuating device 34, so as to release the washers by retraction of the so-called mobile members, the washers then being placed on their corresponding bearing surfaces,
- FIGS 4 to 7 detail the operation of one of the pairs 33 of fixed members 36 and movable 37, and the kinematics of the movement of the washers 10.
- the fixed member 36 has a vertically elongated shape that can be broken down into several parts distributed over its height, from top to bottom: - in the upper part, it has a base 36a by which it is secured to the plate 31, - then, it has a first intermediate portion 36b defining a vertical rectilinear face facing another vertical rectilinear face of the movable member 37 in extended position, these two faces are distant l one of the other by a distance close to the thickness e of the washer 10, and thus serve as a clamping jaw for the maintenance of vertical position of the washer by its upper part, once the washer inserted around the fixed member as shown, - then it has a second intermediate portion 36c, which has a vertical baffle profile defining two guide surfaces 36c1 and 36c2 turned upwards, oblique and opposite orientations with respect to the vertical, - finally the low end portion 36d has a horizontal section of the same shape and slightly smaller than the section of the housing 22, so that the body fixed, and the associated washer, are
- FIG. 4 thus corresponds to the step of maintaining the washer 10 in a vertical position (or substantially vertical), the fixed member being already in the immediate vicinity of the bearing surface of the washer and centered relative thereto.
- FIG. 5 corresponds to the step of release of the washer by retraction of the movable member 37: the movable member is displaced by upward vertical translation (arrow f1) by control of the actuating means 34 by the operator .
- the washer is no longer tight, and slides vertically by gravity.
- FIG. 6 shows the guided tilting movement (arrows f2) of the washer, of which an upper part of the inner edge 10a slides on the guiding surface 36c1 and a lower part of the outer edge 10b slides on the guide surface 36c2 of the fixed organ.
- the downward movement (and upward movement) of the mounting tool 30 can be achieved manually, or by means of an automatic means of known type, pneumatic, hydraulic, electrical or magnetic.
- the washer mounting tool described above has many advantages, including the following advantages: it allows a saving of time of assembly of the washers, 8 washers being able to be assembled simultaneously it also allows a better quality of mounting of the washers, it allows a lightening of the breech, by eliminating the facilities of foundry, such as the ribs, the big ones leave, slopes, created specifically to guide the washers to their homes, and it remains simple manufacturing and operating mode.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Cylinder Crankcases Of Internal Combustion Engines (AREA)
- Gasket Seals (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR1252663A FR2988313B1 (fr) | 2012-03-26 | 2012-03-26 | Outil de montage pour positionner une rondelle sur une surface d'appui |
| PCT/FR2013/050445 WO2013144472A1 (fr) | 2012-03-26 | 2013-03-01 | Outil de montage pour positionner une rondelle sur une surface d'appui |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP2830824A1 true EP2830824A1 (fr) | 2015-02-04 |
Family
ID=48014094
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP13712882.3A Withdrawn EP2830824A1 (fr) | 2012-03-26 | 2013-03-01 | Outil de montage pour positionner une rondelle sur une surface d'appui |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP2830824A1 (fr) |
| FR (1) | FR2988313B1 (fr) |
| WO (1) | WO2013144472A1 (fr) |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3991579B2 (ja) * | 2000-11-15 | 2007-10-17 | いすゞ自動車株式会社 | ボルト&ワッシャー組付装置 |
| JP2007136634A (ja) * | 2005-11-22 | 2007-06-07 | Fuji Heavy Ind Ltd | ワッシャ取付工具 |
| FR2957546B1 (fr) * | 2010-03-18 | 2012-04-06 | Peugeot Citroen Automobiles Sa | Procede de mise en place d'une rondelle d'appui de vis d'assemblage dans une culasse et culasse apte a mettre en ?uvre ce procede |
-
2012
- 2012-03-26 FR FR1252663A patent/FR2988313B1/fr not_active Expired - Fee Related
-
2013
- 2013-03-01 WO PCT/FR2013/050445 patent/WO2013144472A1/fr not_active Ceased
- 2013-03-01 EP EP13712882.3A patent/EP2830824A1/fr not_active Withdrawn
Non-Patent Citations (1)
| Title |
|---|
| See references of WO2013144472A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2988313B1 (fr) | 2014-12-12 |
| WO2013144472A1 (fr) | 2013-10-03 |
| CN104470677A (zh) | 2015-03-25 |
| FR2988313A1 (fr) | 2013-09-27 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
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| 17P | Request for examination filed |
Effective date: 20141009 |
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| AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR |
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| AX | Request for extension of the european patent |
Extension state: BA ME |
|
| DAX | Request for extension of the european patent (deleted) | ||
| RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: PEUGEOT CITROEN AUTOMOBILES SA |
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| GRAP | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOSNIGR1 |
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| INTG | Intention to grant announced |
Effective date: 20161018 |
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| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
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| 18D | Application deemed to be withdrawn |
Effective date: 20170301 |