• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    Device for locating a position on a workpiece (32), comprising a support (24) configured to receive the workpiece (32), a bushing (40) movably mounted relative to the support (24), a locating member (46) , 48) removable configured to be inserted into the sleeve (40) and locking means (42) adapted to fix the sleeve (40) relative to the support (24) and hold it in position.
    公开号:FR3021240A1
    申请号:FR1454719
    申请日:2014-05-26
    公开日:2015-11-27
    发明作者:Matthieu Perlin；Cloarec Damien Le；Dominique Magnaudeix
    申请人:SNECMA SAS；
    IPC主号:
    专利说明:

    [0001] FIELD OF THE INVENTION The present disclosure relates to the field of the manufacture of parts and more particularly to a device and a method for locating a position on a part.
    [0002] BACKGROUND ART Parts formed from several parts, for example turbomachine profiled elements comprising a main body made of composite material and a metal reinforcement, are known. When using the profiled element in operation or during the production phases, the reinforcement may wear or be damaged while the main body is protected. Thus, it may be advantageous, in maintenance and in production, to replace the reinforcement while retaining the original main body. In order not to weaken the main body, it is preferable to reuse the fastening elements (eg riveting hole, tapping, etc.) already provided on the main body. Such an operation, however, requires exactly locate, on the new reinforcement, the positions of these fasteners. There is therefore a need for a device and a method of locating a position on a part. PRESENTATION OF THE INVENTION The present disclosure relates to a device for locating a position on a workpiece, comprising a support configured to receive the workpiece, a sleeve mounted movable relative to the support, a removable locating member configured to be inserted into the workpiece. sleeve and locking means adapted to fix the sleeve relative to the support and hold it in position. The socket is configured to accommodate the removable registration member. The locating member, when inserted into the sleeve mounted movable relative to the support, is adapted to traverse a part of the surface of the part to detect the position to be located on the part. In its course, the locating member drives the sleeve. The sleeve thus follows the movements of the registration member when the registration member is inserted into the socket. The locking means are used to fix the sleeve relative to at least a portion of the support and hold the sleeve in position when the register member has identified the position to be identified. Thus, the sleeve is intended to surround the position to be located. Then, it is possible to remove the removable locating member of the sleeve, for example in order to introduce into the sleeve a machining tool. The socket functions as a marker of the marked position. The device thus makes it possible to accurately locate a position on the part and to keep this marked position even if the part is subsequently removed. In particular, the device allows to locate a position on an old part and to postpone this position on a new part that is placed in the support. Maintenance or repair operations are therefore facilitated and their accuracy is increased by such a device. In addition, the variability of the position of the socket allows the device to easily adapt to different parts geometries. In some embodiments, the support comprises at least one housing and the socket is movably mounted in said housing. Since the housing is provided on the support, the position of the housing is fixed relative to the workpiece as soon as the workpiece is in the support. Thus, when the bushing is fixed (blocked) by the locking means, the position of the bushing is fixed relative to the workpiece.
    [0003] In some embodiments, alternatively or in addition, the sleeve is connected to the support by an arm having at least one link (articulation) adjustable. The connection may be a slide connection (translation), pivot, ball joint (rotation) or any type of connection. In such embodiments, at least a portion of the blocking means may be provided to block the link in position.
    [0004] In some embodiments, the housing is formed in a retractable portion of the support. By retractable part is meant a detachable portion of the support or a movable portion relative to the rest of the support while remaining bound. Thus, the retractable part can be retracted, for example to allow insertion or removal of a part on the support. The presence of a retractable part makes it possible to insert into the support pieces of complex geometry and / or to locate any position on the surface of the part, independently of the constraints of installation of the part in the support.
    [0005] In some embodiments, the retractable portion may be movable relative to the rest of the support and include second locking means for locking the position of the retractable portion relative to the rest of the support. In some embodiments, the support includes a plurality of slots. The support thus makes it possible to locate several positions, possibly simultaneously. In some of these embodiments, the housings are pre-positioned at the positions to be identified. In some embodiments, a housing is provided for each position to be located.
    [0006] In some embodiments, the registration member has a relief complementary to a relief of the piece at the position to be identified. The relief of the registration member may, for example, be a projection for locating a hole on the part. In another example, the relief of the registration member may be a hollow for locating a bump on the part. The expression "complementary relief" is to be understood in the broad sense, insofar as it is not necessary for the reliefs of the locating member and the workpiece to correspond exactly to each other (this is to say that one is the exact negative of the other). It suffices that the relief of the locating member and that to be located on the part fit together in a discriminating manner so that the marking is reliable. With such a feature, the accuracy and ease of implementation of the registration are increased. In some embodiments, the registration member comprises a probe. It can be a probe with or without contact, for example an eddy current probe, ultrasound, etc., or any probe used in a non-destructive and / or non-invasive method. Such a probe makes it possible to increase the accuracy of the detection and to identify non-visible positions of the outside of the part. In addition, with a registration member provided with a sensor returning a signal, the tracking device can be automated so as to perform the identification by an autonomous robot. The present disclosure also relates to a method of locating a position on a part, comprising the following steps: - providing a part and a support; - install the part in the support; - mount a mobile socket; inserting a register member into the socket and moving the socket until the position of the registration member coincides with the position to be identified; - Fix the socket relative to the support by means of locking in the position determined in the previous step. Such a method may, in particular, use a tracking device according to any one of the previously described embodiments. The coincidence of the register member with the position to be identified can be detected in several ways, depending on the type of registration device and the nature of the position to be identified, possibly in a manner similar to that explained above. Such a method allows an easy and accurate identification and implementation of simple tools adapting to various geometries of parts.
    [0007] In some embodiments, the support includes a housing and the socket is movably mounted in the housing. The present disclosure also relates to a method of manufacturing a perforated part, comprising the following steps: - providing an old part comprising a hole; - Locate the hole position of the old part by the tracking method described above; - remove the old part of the support; - provide a new room, similar to the old room; - install the new part in the support; - Make a hole in the new part at the position marked in the marking step. In such a method, the terms "old" and "new" refer to a first and second part in their order of installation on the carrier during the process. These terms do not presage in any way the use that is made otherwise of these parts or their good or bad condition, or their wear. In addition, saying that the new part is similar to the old part means that the new part is substantially identical to the old part as it was originally. The two rooms can not be identical, especially because the old room contains a hole where the new one does not, precisely where you want to spare one. Moreover, in a maintenance and / or repair frame, the old part may be deformed, for example by wear or damage, while the new part will have a slightly different geometry. In a component upgrade frame, the new part may also have improvements or modifications to the old part, provided that the changes in the vicinity of the position to be located do not hinder the implementation of the process. of manufacture above.
    [0008] In some embodiments, the old part includes a first portion and a second portion, the hole of the old piece being a hole common to the first and second parts, and the new piece includes the second portion of the old piece and a new first part similar to the first part of the old piece. In other words, the new part includes the second part recovered on the old part. Thus, on the new piece, we change the first part, in which we must make a hole in exactly the right place for its assembly with the second part. By common hole is meant a hole of the same axis passing through the first and second parts. In these embodiments, the method thus makes it possible to locate a position and arrange a hole in the new first part, which is exactly in the axis of the hole of the second part recovered from the old part. Such a hole then allows to assemble the two parts, for example using a screw, a rivet or other suitable attachment. In some embodiments, before the step of marking on the old part, the first part of the old part is removed and in the marking step on the old part, the hole of the second part is marked. part. The second part being the one that we want to keep for the new part, it is advantageous to locate the hole relative to the second part, without taking into account the possible deformations of the former first part (that is to say of the first part of the old part) which one wishes to replace.
    [0009] In some embodiments, before the removal of the old part, a retractable part of the support is retracted and after the installation of the new part, this retractable part is put back in place. The retraction of the retractable part of the support facilitates the removal of the old part and the introduction of the new part into the support. According to another application, the retraction of a retractable part makes it possible to apply the above method to parts of different geometries or characteristics (such as the location of the hole, for example), each part being associated with its own part. retractable part.
    [0010] BRIEF DESCRIPTION OF THE DRAWINGS The invention and its advantages will be better understood on reading the following detailed description of embodiments of the invention given as non-limiting examples. This description refers to the accompanying drawings, in which: - Figure 1 shows in perspective a device for locating a position on a workpiece according to one embodiment of the invention; - Figure 2 shows a sectional detail of the vicinity of the sleeve in this embodiment; - Figure 3 shows in perspective the device according to this embodiment, in which a new piece has been installed. DETAILED DESCRIPTION OF THE INVENTION FIG. 1 is a perspective view of a device for locating a position on a workpiece 30 according to one embodiment. The device 10 comprises a support 20 having a fixed part 22 and a retractable part 24. In the example shown in FIG. 1, the support 20 and in particular its fixed part 22 have a solid shape and which partially matches the shape of the part 30. In other embodiments, the support 20 may have only a few points of contact with the workpiece 30.
    [0011] Furthermore, the device 10 may comprise means (not shown) for holding the workpiece 30 in position in the support 20. In other words, the workpiece 30 may be attached to the support 20, for example by a flange. In FIG. 1, there is shown in the support 20 a piece 30. The piece 30 is here a profiled turbomachine element of composite material, from which the reinforcement has been removed. In FIG. 1, only the main body 32 is seen from the part 30. The profiled element forming the part 30 comprises a first end 30a and a second end 30b. For greater stability, the profiled element was placed on the support 20 at the first end 30a, which is its least variable part. The retractable portion 24 of the support is mounted on the fixed part 22 of the support by means of pads 26 engaging in corresponding holes of the retractable part 24. In addition, the retractable portion 24 of the support comprises at least one housing. The retractable portion 24 of the support here comprises three housings 28a, 28b, 28c. Each housing, in this embodiment, is a substantially cylindrical through hole. However, other forms may be considered.
    [0012] As indicated above, the device 10 comprises a sleeve 40 mounted to move relative to the support 20. In the present embodiment, the sleeve 40 is mounted movably in a housing of the support 20, in this case the housing 28a of the retractable part. 24. The bushing 40 is a bushing of external cross section adapted to the cross section of the housing 28a in which it is located. The sleeve 40 here has a substantially circular outer cross section, of smaller diameter than the cross section of the housing 28a. Thus, there is a radial clearance between the sleeve 40 and the housing 28a. The sleeve is thus transversely (radially) movable in the housing 28a. With reference to FIGS. 1 to 3, a possible use of the device 10 will now be presented as part of the replacement of the reinforcement of a profiled turbine engine element. This description is merely to explain the operation of the device 10 and is not limiting the use that can be made of such a device.
    [0013] As indicated above, the piece 30 (old part) is here a profiled turbine engine element in which a reinforcement (first part) is fixed to the main body 32 (second part). The reinforcement and the main body 32 have a common hole in which can be inserted a rivet or a screw, for example, for fixing the reinforcement on the main body. To replace the reinforcement of the part 30, we first remove the reinforcement. There remains only the piece 30 more than the main body 32. The support 20 is provided from which the retractable part 24 has been removed. The piece 30 is placed in the fixed part 22 of the support and then the retractable part 24 is replaced. this is already done, the sleeve 40 is mounted in a housing 28a whose position is close to the hole that is to be located. The sleeve 40 is movably mounted in the housing 28a. In particular, the sleeve 40 is left free of movement at least transversely to its axis. The configuration obtained is that shown in Figure 1. It then inserts a register member in the socket. In the present embodiment, as illustrated in FIG. 2, the locating member is formed of a registration barrel 46 and a rod 48. The rod 48 is inserted into the central hole of the marking barrel 46. To facilitate the location of the hole 32a, the end 48a of the peg is tapered. In the present embodiment, the end 48a of the peg is gradually tapered. The end 48a of the peg comprises tapered and / or cylindrical sections of decreasing diameters as one approaches the tip of the peg. The end 48a of the peg is a protrusion of the locating member 46, 48. The end 48a of the peg is adapted to sink into the hole 32a sought, whereby the locating member comprises a relief complementary to the hole 32a, which is the position to be identified.
    [0014] As indicated above, the sleeve 40 can be fixed on the support 20 (here on the retractable portion 24 of the support) by locking means. The locking means here are screws 42 each mounted on a washer 44. In other embodiments, the locking means could take another form, for example one or more bolts, a vice-type clamping, or other. When the locking means 42 are loose, the sleeve 40 can move in the housing 28a. In particular, there is a clearance 41 between the bushing 40 and the screws 42 and a clearance 43 between the bushing 40 and the housing 28a.
    [0015] The sleeve 40 can move within the housing, so that the rod 48 traverses part of the surface of the part 30 (here reduced to the main body 32). In particular, the sleeve may be movable transversely, that is to say, with respect to Figure 2, in a plane substantially perpendicular to the axis of the rod.
    [0016] The transverse movements of the rod 48 drive the sleeve 40. When the rod 48 detects the desired hole 32a and the end 48a sinks in, the sleeve 40 is located at a position to be identified. The locking means 42 are then used to fix the sleeve 40 relative to the support 20 and hold it in position. Thus, in the example of Figure 2, the screws 42 are tightened to lock the sleeve 40 in position relative to the retractable portion 24 of the support. Once the bushing 40 is held in position by the locking means 42, the marking member comprising the marking gun 46 and the pin 48 can be removed. The piece 30 can then be removed from the support 20, possibly by retracting the retractable part 24. Next, a new part 130 (shown in FIG. 3) is provided which is installed in the support 20 at a position identical to that of the part 30. In this case, the new part 130 comprises the body main 32 of the old part 30, which has been added a new reinforcement 134. The new reinforcement 134 does not yet have a hole in the location indicated by the sleeve 40. Where appropriate, once the new part 130 installed in the support 20, we replace the retractable part 24 of the support. The configuration obtained is shown in FIG.
    [0017] Moreover, as illustrated in FIG. 3, a machining barrel 146 has been placed in the bushing 40. This machining barrel 146 has a through-hole intended to guide a machining tool, for example a drill or a milling tool. . The through hole is at a position of the machining barrel 146 such that when the machining barrel 146 is inserted into the bushing 40, the through hole is opposite the position marked by the locating member 46, 48. , the machining gun 146 is able to guide a machining tool so that it machines the new part 130, and particularly the reinforcement 134, exactly opposite the hole 32a of the main body 32.
    [0018] The registration device 10 may vary with respect to the embodiment shown. For example, the locating member may be formed of a single piece or at least three pieces, rather than including an independent marker barrel 46 and a freestanding peg 48. Furthermore, the retractable portion 24 may have a geometry adapted to the part on which it is desired to perform the marking and / or machining. In this case, for the same fixed part 22 of support, there may be several retractable parts 24, each being adapted to a part geometry or a family of part geometries. Thus, the support 20 can easily adapt to many room geometries. Even more flexible and adaptable, the support 20 may comprise a hinged portion relative to the fixed portion 22 of the support, the sleeve 40 being mounted on said hinged portion. The joint may comprise, for example, arms of variable length, ball joints, etc. The sleeve is thus movable relative to the support. The articulated part may be retractable or connected to a retractable part such as the retractable part 24, or permanently connected to the support, for example connected to the fixed part 22. The articulated part may comprise all or part of the locking means, This locks the current position of the dwelling. Although the present invention has been described with reference to specific exemplary embodiments, modifications can be made to these examples without departing from the general scope of the invention as defined by the claims. In particular, individual features of the various embodiments illustrated / mentioned can be combined in additional embodiments. Therefore, the description and drawings should be considered in an illustrative rather than restrictive sense.
    权利要求:
    Claims (10)
    [0001]
    REVENDICATIONS1. Device (10) for locating a position on a workpiece (30), comprising a support (20) configured to receive the workpiece (30), a bushing (40) movably mounted relative to the support (20), a feed member locating (46, 48) detachable configured to be inserted into the sleeve (40) and locking means (42) adapted to fix the sleeve (40) relative to the support (20) and maintain it in position.
    [0002]
    2. A marking device according to claim 1, wherein the support (20) comprises at least one housing (28a) and the sleeve (40) is movably mounted in said housing (28a).
    [0003]
    3. A marking device according to claim 2, wherein the housing (28a) is formed in a retractable part (24) of the support.
    [0004]
    4. Device according to any one of claims 1 to 3, wherein the register member (46, 48) has a relief (48a) complementary to a relief (32a) of the position to be identified. 20
    [0005]
    5. Device according to any one of claims 1 to 4, wherein the registration member (46, 48) comprises a probe.
    [0006]
    6. A method of locating a position on a workpiece (30), comprising the steps of: - providing a workpiece (30) and a carrier (20); - install the part (30) in the support (20); - mount a sleeve (40) movable relative to the support (20) - insert a marker (46, 48) in the sleeve (40) and move the sleeve (40) until the position of the locating member coincides with the position to be identified; - Fix the sleeve (40) relative to the support (20) by locking means (42) in the position determined in the previous step.
    [0007]
    7. A method of manufacturing a perforated part, comprising the following steps: - providing an old part (30) comprising a hole (32a); - Locate the position of the hole of the old part by the registration method according to claim 6; - remove the old part (30) of the support (20); - provide a new part (130), similar to the old part (30); - install the new part (130) in the support (20); - providing a hole in the new part (130) at the position marked in the marking step.
    [0008]
    8. The manufacturing method according to claim 7, wherein the old part (30) comprises a first part and a second part (32), the hole (32a) of the old part being a hole common to the first and second parts (32). parts, and wherein the new part (130) comprises the second part (32) of the old part and a new first part (134) similar to the first part of the old part. 25
    [0009]
    9. The manufacturing method according to claim 8, wherein before the step of marking on the old part (30), the first part of the old part (30) is removed and in the marking step on the old part (30), the hole (32a) of the second part (32) is marked. 30 302 12 40
    [0010]
    10. The manufacturing method according to any one of claims 7 to 9, wherein before removal of the old part (30), a retractable portion (24) of the support is retracted and this retractable portion (24) is reset. place after the installation of the new part (130). 5
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    同族专利:
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    GB2528560B|2020-12-30|
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    法律状态:
    2015-05-19| PLFP| Fee payment|Year of fee payment: 2 |
    2015-11-27| PLSC| Search report ready|Effective date: 20151127 |
    2016-05-17| PLFP| Fee payment|Year of fee payment: 3 |
    2017-04-28| PLFP| Fee payment|Year of fee payment: 4 |
    2017-11-10| CD| Change of name or company name|Owner name: SNECMA, FR Effective date: 20170713 |
    2018-04-23| PLFP| Fee payment|Year of fee payment: 5 |
    2019-04-19| PLFP| Fee payment|Year of fee payment: 6 |
    2020-04-22| PLFP| Fee payment|Year of fee payment: 7 |
    2021-04-21| PLFP| Fee payment|Year of fee payment: 8 |
    优先权:
    申请号 | 申请日 | 专利标题
    FR1454719A|FR3021240B1|2014-05-26|2014-05-26|DEVICE AND METHOD FOR TRACKING A POSITION ON A PIECE|FR1454719A| FR3021240B1|2014-05-26|2014-05-26|DEVICE AND METHOD FOR TRACKING A POSITION ON A PIECE|
    US14/721,168| US9764392B2|2014-05-26|2015-05-26|Device and method for localizing a position on a part|
    GB1509053.3A| GB2528560B|2014-05-26|2015-05-27|Device and method for localizing a position on a part|
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