EP2892796A1 - Montage avec orientation d'une articulation elastique sur un bras de suspension de vehicule automobile - Google Patents
Montage avec orientation d'une articulation elastique sur un bras de suspension de vehicule automobileInfo
- Publication number
- EP2892796A1 EP2892796A1 EP13745448.4A EP13745448A EP2892796A1 EP 2892796 A1 EP2892796 A1 EP 2892796A1 EP 13745448 A EP13745448 A EP 13745448A EP 2892796 A1 EP2892796 A1 EP 2892796A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- axis
- head
- movable
- translation
- movable head
- 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- Withdrawn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
- 239000000725 suspension Substances 0.000 title claims abstract description 17
- 238000000034 method Methods 0.000 claims abstract description 15
- 238000001514 detection method Methods 0.000 claims description 28
- 230000005693 optoelectronics Effects 0.000 claims description 7
- 230000003287 optical effect Effects 0.000 abstract description 2
- 239000013536 elastomeric material Substances 0.000 description 4
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D65/00—Designing, manufacturing, e.g. assembling, facilitating disassembly, or structurally modifying motor vehicles or trailers, not otherwise provided for
- B62D65/02—Joining sub-units or components to, or positioning sub-units or components with respect to, body shell or other sub-units or components
- B62D65/024—Positioning of sub-units or components with respect to body shell or other sub-units or components
- B62D65/028—Positioning of sub-units or components with respect to body shell or other sub-units or components by determining relative positions by measurement
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G7/00—Pivoted suspension arms; Accessories thereof
- B60G7/001—Suspension arms, e.g. constructional features
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G7/00—Pivoted suspension arms; Accessories thereof
- B60G7/005—Ball joints
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D65/00—Designing, manufacturing, e.g. assembling, facilitating disassembly, or structurally modifying motor vehicles or trailers, not otherwise provided for
- B62D65/02—Joining sub-units or components to, or positioning sub-units or components with respect to, body shell or other sub-units or components
- B62D65/12—Joining sub-units or components to, or positioning sub-units or components with respect to, body shell or other sub-units or components the sub-units or components being suspensions, brakes or wheel units
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2204/00—Indexing codes related to suspensions per se or to auxiliary parts
- B60G2204/40—Auxiliary suspension parts; Adjustment of suspensions
- B60G2204/416—Ball or spherical joints
Definitions
- the invention relates to the field of assembly by fitting a generally circular piece on a support such as a motor vehicle suspension component. More specifically, the invention relates to the assembly of elastic joints on an arm or wishbone of a motor vehicle. The invention relates to a method and to a device for mounting a part such as an elastic articulation on a support such as a suspension arm.
- Patent document FR 2 769 060 A1 discloses an elastic articulation for a motor vehicle running gear.
- the articulation of this teaching although apparently symmetrical in revolution, presents within it an asymmetry which imposes a mounting in a particular orientation on the triangle of suspension.
- the central tube comprises two pins of generally circular section diametrically opposed in a direction transverse to the tube and received in two bearing half-rings. The tube can thus pivot about the axis of the tenons.
- Two ribs of elastomeric material are provided between the tube and the outer ring, the ribs extending circularly between the tenons. The joint is thus provided to be mounted on a suspension triangle to ensure the connection of two vertices of the triangle to the vehicle structure.
- Each of these two joints must then be oriented so that the pin axis is aligned with the longitudinal axis of the vehicle, so as to ensure optimum capacity and pivot stability.
- This teaching lacks interest in assembling the joints on the wishbone and more particularly the problem of orientation of the joints.
- the joints are in fact usually mounted by fitting or by pressing into a corresponding housing of an arm or wishbone. In a logic of assembly automation, it is useful that the orientation of the joints can be ensured automatically.
- Patent document FR 1 302 533 discloses an automated method of angular positioning of circular parts such as cylindrical ferrules of vehicle wheels. These ferrules each comprise a discontinuity on their periphery, such as for example a projection, a slot or a weld at the junction between two adjacent edges.
- the keying method consists in receiving a ferrule from a chute for supplying ferrules in series.
- a distribution beam enables one ring to be moved at a time to a reception zone formed by two idle rollers.
- a rotating arm around the ferrule thus positioned comprises a tongue adapted to cooperate with the aforementioned flange.
- the arm then performs a complete turn to be sure that it cooperates by engagement with the rim and angularly positions the ferrule steadily.
- This solution is interesting and relatively simple to implement. However, it requires the presence of a rim or attachment surface at the periphery of the circular element to be oriented. In addition, it provides a vertical positioning of the element to be oriented, that is to say with its axis of rotation or symmetry horizontally. However, in the case of assembly of elastic articulations of undercarriage, they are usually arranged horizontally so that it can be caught and force-fitted by one of their lateral faces.
- the object of the invention is to propose a solution to the problem of angular orientation of circular elements, such as elastic joints, when they are mounted on a support such as a suspension arm.
- the invention relates to a method of mounting on a support, a generally symmetrical part in revolution along an axis and having a polarizing surface extending substantially diametrically, the method comprising the following steps: - positioning of the part opposite a movable head provided with means for engaging in rotation with the polarizing surface; - Moving the movable head to the room along its axis; rotation of the movable head so as to engage the engagement means with the polarizing surface and angularly position the part; - gripping the piece; and - placing the workpiece on the support; remarkable in that the step of moving the movable head is preceded by a step of detecting the presence of the polarizing surface in a direction generally perpendicular to the axis and remote from said axis; and the step of moving the movable head comprises a rotational movement of said head according to the result of the detection step so as to avoid a collision between the engagement means and the polarizing surface during a movement of head towards the room.
- the steps of gripping the workpiece and placing the workpiece on the support are preferably carried out by means of the movable head.
- the rotational movement of the head at the step of moving the movable head towards the workpiece preferably takes place before a translational movement of the movable head towards the workpiece.
- the engagement means of the movable head are preferably generally aligned with the direction of detection of the presence of the polarizing surface.
- the movable head preferably comprises three predefined angular positions: a first position corresponding to the initial position at the beginning of a mounting cycle, a second intermediate position corresponding to the position taken following the detection of an angular position of the part where the rotational engagement means of the movable head in the first position are capable of colliding with the one or more of the polarizing surfaces, and a third position corresponding to the final orientation position.
- the second position is preferably located angularly between the first and third positions, that is to say that the head from the first to the third position passes through the second position.
- the second position may correspond to a rotation of 90 ° with respect to the first position and the third position may correspond to a rotation of 180 ° with respect to the first position, this rotation being in the same direction as the rotation of the first position. the second position.
- the part comprises on at least one of its faces two diametrical and opposite ribs forming polarizing surfaces.
- the movable head comprises two fingers extending substantially parallel to the axis and diametrically opposite with respect to said axis, the fingers forming the means for engaging in rotation.
- the piece is an elastic suspension joint and / or the support is an arm or a suspension triangle of a motor vehicle.
- the step of detecting the presence of the polarizing surface is performed by optoelectronic means, preferably through-beam.
- the invention also relates to a mounting device on a support of a generally symmetrical part in revolution along an axis and having a polarizing surface extending substantially diametrically, the device comprising: a frame; a zone for receiving the part on the frame; a movable head on the frame, provided with means for engaging in rotation with the polarizing surface and intended for the angular positioning of the part on the receiving zone; remarkable in that it further comprises means for detecting the presence of the polarizing surface in a direction generally perpendicular to the axis and remote from said axis; and in that it is configured so that the movable head rotates according to the result of the detection step so as to avoid a collision between the engaging means and the polarizing surface during a movement of movement. head towards the room.
- the device may comprise an actuator or a linear jack supporting the movable head.
- a rotary jack can be arranged between the linear jack and the head.
- the rotary jack may include three angular reference positions.
- the device may also comprise electrical and / or electronic control means connected to the detection means and controlling the movement of the movable head.
- the movement of the movable head is preferably generated hydraulically or pneumatically.
- the device comprises means for bringing the workpiece into translation towards the reception zone, the means for detecting the polarizing surface of the workpiece being arranged on the translation feed means.
- the means for bringing the workpiece into translation comprise a movable element in translation comprising a notch of receiving the piece, the detection means being optoelectronic beam means attached to the element on the side of the notch opposite its opening, the beam forming an angle with the direction of translation of the movable member which is less than 45 °, preferably 30 °, more preferably 15 °.
- the device comprises a chute, preferably vibrating, supplying series of parts corresponding to the part to be mounted, the chute opening on the notch of the movable member in translation.
- the head is movable in translation and rotation along the same axis, and the receiving zone of the part is movable in translation coaxially with the movable head.
- the optional features of the invention that are set forth for the mounting method and the mounting device, respectively, are equally valid for the other of the method and the device since the method and apparatus relate to the same invention.
- the measures of the invention are advantageous in particular that they allow the mounting of the parts on their support at a higher rate. Indeed, the detection of unfavorable angular positions with the initial position of the head makes it possible to control the rotation of the head before approaching the articulation, in order to avoid any collision between the engagement means and the polarizing surface (s). . These measures also avoid a specific step or separate orientation of the joints, such a step being potentially costly in time and / or technical means.
- the means for detecting the orientation of the joints are particularly interesting because economic.
- FIG. 1 schematically illustrates a vehicle running gear portion, comprising a suspension triangle equipped with elastic joints oriented along the axis of pivoting of the triangle;
- FIG. 2 is a perspective view of one of the elastic joints of the undercarriage of FIG. 1;
- FIG. 3 is a plan view of a device for mounting elastic hinges on a support such as a suspension arm, the device being in accordance with the invention
- FIG. 4 is an elevational view of the device of Figure 3;
- FIG. 5 illustrates three possible orientations of the articulation where the beam of the detection means is not interrupted, this lack of detection corresponding to a first mode of operation of the mobile head of the device;
- FIG. 6 illustrates three possible orientations of the joint where the beam of the detection means is interrupted, corresponding to a detection and a second operating mode of the device.
- Figure 1 schematically illustrates the left side of a front undercarriage 2 of a motor vehicle. It essentially comprises a suspension triangle 4 connecting a wheel 6 to a structure 12 of the vehicle. The connection between the triangle 4 and the wheel 6 is via a ball 8 and the connection between the triangle 4 and the structure 12 takes place via two elastic joints 10. These joints are shown schematically. Although generally circular and apparently symmetrical in revolution, they have an asymmetry related to their pivoting function essentially in the longitudinal direction of the vehicle.
- FIG. 2 illustrates in perspective a hinge 10 of the undercarriage of FIG. 1. It essentially comprises an outer ring 14, an inner tube 16 intended to receive a fastening means of the screw type, and of the elastomeric material between the tube 16 and the outer ring 14.
- the elastomeric material and / or the tube may have features not visible in Figure 2, intended in particular to promote the pivot function in a given transverse direction.
- the elastomeric material has two ribs 18 on each lateral face of the articulation 10. These ribs 18 are diametrically opposed and constitute a reference mark of the articulation. It should be noted that elastic joints having an orientation are well known to those skilled in the art. It is not necessary to further specify the construction details of such joints.
- FIG. 3 is a plan view of a device for mounting elastic hinges on a support such as a suspension arm, the device being in accordance with the invention.
- FIG. 4 is an elevational view of the device of FIG. 3.
- the device 20 essentially comprises a frame 22 supporting a movable mounting head 24.
- This head is movable in translation by a device with a pneumatic or hydraulic jack 28. It is also movable in rotation by an orientator 26.
- the latter may be a rotary piston device type pallet able to take different angular positions.
- the movable head 24 is generally circular and comprises on its front face two fingers 30 extending generally parallel to its axis of translation, these fingers being diametrically opposite with respect to this axis. Their function will be detailed later.
- the device 20 also comprises a support 32 for the articulation 10 during the angular positioning and gripping operations which will be described later.
- the support 32 comprises a pin 34 intended to penetrate the tube of the joint with a view to its centering and positioning.
- the support 32 may be movable in translation along the axis of displacement of the movable head 30.
- the device 20 also laterally comprises means for automatically feeding the joints, one by one, towards the support 32.
- These means comprise a member 36 extending transversely and movable in translation via a pneumatic cylinder 38.
- This element comprises a notch 46 generally U-shaped whose width corresponds essentially to that of the joints 10.
- a vibrating rail 48 for supplying the articulations is disposed facing the notch 46 of the movable member in translation 36.
- the rail 48 is sized to bring the joints one last the other, that is to say arranged in series.
- the mobile element 36 can then be moved towards the hinge receiving zone at the vertical axis of the support 32 and the movable head 24.
- the presence of the hinge 10 in the notch 46 is detected by means of presence detection, these means being optoelectronic through beam 44.
- These are arranged on a support 40 in the shape of a U and fixed to the movable element 36, the U-shaped support overlapping the bottom of the notch 46.
- the beam generated by these presence detection means 44 is generally horizontal and at the height of the outer ring of the hinge when disposed in the bottom of the notch 46.
- the bundle of these means 44 is interrupted by the outer ring.
- the movable element 36 also comprises means 42 for detecting the orientation of the articulation, these means being also optoelectronic beam-beam, similar to the presence detection means 44. However, they are arranged a little higher on the support 40 and a little more towards the central axis of the articulation when it is in place in the notch 46, so that the beam is interrupted by one of the two ribs 18 (see Figure 2) diametrically opposed when one of them is oriented towards the bottom of the notch 46. In the representation of FIG. 4, the optical beam of the second detection means 42 is not interrupted, the ribs 18 being oriented substantially parallel to the beam . The beam thus passes over the outer ring of the joint and laterally to the inner tube.
- FIGS. 3 and 4 will be described in relation with FIGS. 5 and 6.
- FIG. 5 illustrates three possible orientations of the articulation 10 where the beam of the orientation detection means 42 is not interrupted, this lack of detection corresponding to a first mode of operation of the mobile head of the device.
- the fingers 30 of the movable head 24 which are initially aligned with a direction parallel to the beam of the detection means 42, can not be descended with the head without colliding with at least one of the ribs 18.
- the moving head 24 In the absence of interruption of the beam of the optoelectronic detector 42, the moving head 24 (FIG. 3) is then displaced in rotation by an angle 90 ° so that his fingers 30 are aligned with a direction perpendicular to that of the beam.
- the movable head can be lowered to the joint until the end of the fingers 30 is at the height of the ribs.
- the movable head then undergoes a second rotational movement of 90 ° further, that is to say in the same direction as the first movement, so that the fingers come into contact with the corresponding lateral faces of the ribs and can rotate the articulation in order to position it angularly.
- Figure 6 illustrates three possible orientations of the joint where this time the beam of the detection means is interrupted, corresponding to a detection and a second mode of operation of the device.
- the fingers 30 of the movable head 24 (FIG. 3), which are initially aligned with a direction parallel to the beam of the detection means 42, can be lowered with the head they come into contact with the ribs 18. Once the head is lowered until the end of the fingers 30 is at the height of the ribs 18, the head is then rotated 180 ° in the same direction as the two rotations.
- the detection of angular positions of the problematic joint with the initial orientation of the head allows, by means of training means rotation of the head and adequate control means, to ensure a descent of the fingers between the ribs and then a constant angular positioning.
- the detection of the angular position at the notch of the movable member in translation of the automatic feed means of the joints in front of the movable head allows an optimization of the working cycle time of the device. Indeed, in case of non-detection or non-interruption of the beam at angular positions of the joint such as those illustrated in Figure 5, the head can undergo the first rotation of 90 ° during the transfer of the joint operated by the displacement in translation of the movable member 36. It is therefore in hidden time that the angular position of the head can be adapted to the initial angular position of the joint. It should be noted that the orientation of the articulation as soon as it is housed in the notch does not change during its transfer to the receiving zone along the axis of the movable head and the support.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Automatic Assembly (AREA)
- Length Measuring Devices By Optical Means (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR1258209A FR2994928B1 (fr) | 2012-09-04 | 2012-09-04 | Montage avec orientation d'une articulation elastique sur un bras de suspension de vehicule automobile |
| PCT/FR2013/051557 WO2014037633A1 (fr) | 2012-09-04 | 2013-07-02 | Montage avec orientation d'une articulation elastique sur un bras de suspension de vehicule automobile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP2892796A1 true EP2892796A1 (fr) | 2015-07-15 |
Family
ID=47137890
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP13745448.4A Withdrawn EP2892796A1 (fr) | 2012-09-04 | 2013-07-02 | Montage avec orientation d'une articulation elastique sur un bras de suspension de vehicule automobile |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP2892796A1 (fr) |
| CN (1) | CN104768841B (fr) |
| FR (1) | FR2994928B1 (fr) |
| WO (1) | WO2014037633A1 (fr) |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1302533A (fr) * | 1961-07-17 | 1962-08-31 | Dunlop Sa | Dispositif d'orientation pour pièces circulaires telles que des viroles pour roues de véhicules automobiles |
| FR2769060B1 (fr) * | 1997-09-26 | 2000-10-13 | Peugeot | Articulation elastique, notamment pour un train roulant de vehicule automobile |
| KR100737604B1 (ko) * | 2005-11-11 | 2007-07-10 | 현대자동차주식회사 | 차량 부품의 자동 결합장치 |
| US7878287B2 (en) * | 2006-12-08 | 2011-02-01 | Ford Motor Company | Subframe-locating device |
-
2012
- 2012-09-04 FR FR1258209A patent/FR2994928B1/fr not_active Expired - Fee Related
-
2013
- 2013-07-02 CN CN201380046257.4A patent/CN104768841B/zh not_active Expired - Fee Related
- 2013-07-02 EP EP13745448.4A patent/EP2892796A1/fr not_active Withdrawn
- 2013-07-02 WO PCT/FR2013/051557 patent/WO2014037633A1/fr not_active Ceased
Non-Patent Citations (1)
| Title |
|---|
| See references of WO2014037633A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2994928A1 (fr) | 2014-03-07 |
| CN104768841A (zh) | 2015-07-08 |
| FR2994928B1 (fr) | 2014-09-12 |
| CN104768841B (zh) | 2016-12-14 |
| WO2014037633A1 (fr) | 2014-03-13 |
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