JP2009174906A - Position detection unit for magnetized-object, and position detection apparatus for magnetized object using the same - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a magnetized-object position detection unit capable of easily and accurately detecting the position of a magnetized object, which is made unrecognizable visually by an obstacle made of nonmagnetic material, over the obstacle. <P>SOLUTION: This magnetized-object position detection unit 10 is a unit 10 for detecting the position of the magnetized object 63 being at a part hidden with the obstacle 60 made of nonmagnetic material over the obstacle 60, and is provided with a magnet holder 20 having on one end side a magnet 21 which mutually magnetically attracts the magnetized object 63, a supporting frame 11 for swayably supports this magnet holder 20 with the position of its center of gravity served as a fulcrum 25, and a posture display section 40 for displaying swaying posture of the magnet holder 20 around the fulcrum 25, by a relative positional relation between a displacement display section 22 provided at the other end, on the opposite side of the end provided with the magnet 21, of the magnet holder 20 and an index section 42 provided on the supporting frame 11 side. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a magnetized object position detecting unit and a magnetized object position detecting device that indicates a position detected by the magnetized object position on an object.

  For example, in the main wing of a large airplane, a plurality of spar extending in the wing width direction is combined with a rib in a direction orthogonal thereto, and a plurality of skins (outer plates) are attached to the top and bottom of the rib. In the step of fixing the skin to the rib, the rib and the skin are arranged at predetermined positions, and then a portion of the skin that is coaxial with the hole provided in the rib is specified. This coaxial part is generally specified by visual observation or the like from the cross-sectional direction of the skin and rib. Then, a hole is made in the specified portion, and a bolt or the like is inserted into the hole provided in the skin and the rib to fix both.

By the way, in recent years, CFRP (Carbon Fiber Reinforced Plastics), which is lightweight and highly durable, has been selected as the skin material for the main wing, and it has become possible to form the upper and lower skins of each wing with a single plate. ing. In the case of such a large skin, people may not be able to approach the part where the rib is arranged, and it is difficult to visually identify the part where the skin is perforated from the cross-sectional direction of the rib and skin. There is a situation where it is difficult to specify the position of the hole in the skin. In order to cope with this situation, for example, a system using a large-sized and high-precision machine tool as in Patent Document 1 below has been considered.
Special Table 2000-506816

  However, since the above-described system becomes extremely large, it is desired to detect the position of the hole of the rib that cannot be visually recognized because the skin becomes an obstacle by a simple method. As a solution, a search method using a set of magnets can be considered. That is, by placing one magnet in the hole of the rib and suspending the magnet that is magnetically attracted to this magnet so that it can swing on the skin side, there is a hole in the rib on the side where the suspended magnet is directed. Is. However, although such a means can identify the rough position of the hole in the rib, it cannot usually be detected with an accuracy of about 0.5 mm required in the assembly process of the main wing of an airplane. Improvement in accuracy was necessary.

  The present invention has been completed based on the above-described circumstances, and is a method for easily and accurately detecting the position of a magnetized object that cannot be visually recognized by an obstacle made of a non-magnetic material. An object of the present invention is to provide a magnetic object position detection unit. It is another object of the present invention to provide a magnetized object position detecting device capable of indicating the position detected by such a magnetized object position detecting unit on an obstacle.

  In order to solve the above-described problems, a magnetized object position detection unit according to the present invention is a magnetized object for detecting the position of a magnetized object in a portion hidden by an obstacle made of a nonmagnetic material through the obstacle. A magnetic material position detection unit, comprising a magnet holder having a magnet that magnetically attracts the magnetized material on one end side, a support frame that supports the magnet holder so that it can swing around its center of gravity; Oscillation around the fulcrum of the magnet holder by the relative positional relationship between the displacement display part provided at the end of the magnet holder opposite to the magnet and the indicator part provided at the support frame side And a posture display unit for displaying the posture.

  When the magnetized object position detecting unit having such a configuration is arranged on an obstacle, the magnet provided on one end side of the magnet holder and the magnetized object attract each other through the obstacle. A movement directed in the direction of. Therefore, if the magnetized object position detection unit is moved on the obstacle and the distance between the magnet provided on the magnet holder and the magnetized object is made different, the magnet holder supported so as to be able to swing is changed. By swinging around the fulcrum, the posture changes. This change in the attitude of the magnet holder can be recognized by an attitude display section comprising a displacement display section provided at the end of the magnet holder opposite to the magnet and an indicator section on the support frame side. Therefore, when the magnetized object position detection unit is moved while looking at the attitude display unit and the swing position of the magnet holder that minimizes the distance between the magnet and the magnetized object is taken, the obstacle from the magnet at that time The magnetized material is arranged on the perpendicular line extending to.

  Furthermore, since the magnet holder is supported so as to be able to swing with its center of gravity as a fulcrum, for example, even when the obstacle forms an inclined surface, the influence of gravity can be eliminated, and the part hidden by the obstacle can be removed. It becomes possible to detect the position of a certain magnetized object accurately and easily.

  In the magnetized object position detection unit according to the present invention, the magnet holder includes a first bearing portion that supports the magnet holder so as to be swingable about the X axis, and the first bearing portion is the X axis. It can be supported by a second bearing portion that is swingably supported around an orthogonal Y axis.

  According to such a configuration, the combination of the swingable directions of the magnet holder in the first bearing portion and the second bearing portion allows the magnet holder to extend in all directions centering on the point supported by the both bearing portions. It becomes possible to take an inclined posture. Thereby, even when the magnetized object is arranged in any direction with respect to the magnetized object position detection unit, the magnet provided at the end of the magnet holder is accompanied by a change in the swinging posture of the magnet holder, It is possible to direct the direction of the magnetized object.

  The support frame is provided with a mask plate corresponding to the displacement display portion, the displacement display portion is a dot pattern provided on the magnet holder, and the indicator portion is formed on the mask plate and the magnet Is a see-through hole through which the dotted pattern can be seen in the swinging posture of the magnet holder when the magnetized object is at the shortest distance, and the see-through hole portion of the mask plate is provided on the posture display portion. A lens for magnifying the image can be provided.

  In this case, the magnetized object position detecting unit is moved on the obstacle while looking through the fluoroscopic hole provided in the mask plate, and when the dot pattern formed on the magnet holder is confirmed from the fluoroscopic hole, the magnetized object position detecting unit is confirmed at that position. Stop the magnetic object position detection unit. Then, the magnetized object is arranged on the perpendicular extending from the magnet at that time to the obstacle. In addition, since the fluoroscopic hole is enlarged and displayed by the lens provided on the support frame, it can be confirmed that the fluoroscopic hole and the dot pattern are exactly matched, and the position where the magnetized object is arranged is accurately determined. Can be detected.

  The displacement display portion further includes an annular pattern centered on the dot pattern, and the mask plate is formed with four direction indicating fluoroscopic holes independent from each other on orthogonal axes intersecting at the center, and each direction The support see-through hole may be arranged on the circumference along the annular pattern in the swinging posture of the magnet holder when the magnet and the magnetized object have the shortest distance.

  According to such a configuration, depending on the relative positional relationship between the magnet and the magnetized material, the mode of the annular pattern confirmed from the respective direction indicating fluoroscopic holes of the mask plate is different. For example, when the magnetized object position detection unit is arranged on an obstacle and the magnet and the magnetized object are not at the shortest distance, one or two of the direction indicating fluoroscopic holes on the mask plate An annular pattern may be confirmed from the direction indicating fluoroscopic hole, and an annular pattern may not be confirmed from the remaining direction indicating fluoroscopic holes. In this case, if the magnetized object position detection unit is moved in the direction in which the direction indicating fluoroscopic hole in which the annular pattern is confirmed, the distance between the magnet and the magnetized object becomes closer. The mode of the annular pattern confirmed from the direction indicating fluoroscopic hole changes. Then, the magnetized object position detection unit is stopped at a position where the shape of the annular pattern confirmed from all the direction indicating fluoroscopic holes is the same or a position where the annular pattern is not confirmed in all the direction indicating fluoroscopic holes. Then, the magnetized object is arranged on the perpendicular extending from the magnet at that time to the obstacle.

  Next, in order to solve the above-mentioned problem, the magnetized object position detecting device of the present invention is a magnetized object position detecting device that indicates the position of the magnetized object detected by the magnetized object position detecting unit on the obstacle. When the magnetized object position detection unit is removed, the magnetized object position detection unit and a main body having a mounting hole to which the magnetized object position detection unit is detachably attached, The surface of the obstacle is exposed through the mounting hole.

  According to the magnetized object position detecting device having the above-described configuration, first, after the magnetized object position detecting unit is attached and moved on the obstacle to detect the position of the magnetized object, the magnetized object position detecting unit is removed from the main body. By removing, the surface of the obstacle is exposed through the mounting hole of the main body. Here, for example, in the magnetized object position detection unit, the position of the magnet when the distance between the magnet and the magnetized object is minimized can be the center of the mounting hole of the main body. Then, after the magnetized object position detection unit is removed from the main body, it indicates that the magnetized object is arranged on the perpendicular extending from the center on the surface of the obstacle exposed through the mounting hole. In this way, an index indicating the position of the magnetized object can be formed over the obstacle, and a desired process can be performed on the position of the magnetized object by this index.

  In addition, the main body is provided with a fixing means including a suction cup disposed on the side of the main body facing the obstacle and a suction mechanism for sucking air in the suction cup. be able to.

  In this case, after detecting the position of the magnetized object, the magnetized object position detecting device is fixed on the obstacle by the fixing means provided in the main body, for example, as compared with the case where a person is holding, Misalignment between the main body and the obstacle is unlikely to occur, and the detection position of the magnetized object can be accurately indicated. Furthermore, by adopting a simple configuration such as a suction cup structure for the fixing means, the magnetized object position detecting device does not need to be a large-scale device, and can be excellent in handleability.

  In addition, when the magnetized object position detection unit is removed, the punch jig has a punch jig that can be exchanged with the magnetized object position detection unit. The punch jig can transfer the detection position of the magnetized object. A unit to be processed can be provided.

  According to such a configuration, after detecting the position of the magnetized object with the magnetized object position detecting unit attached, the magnetized object position detecting unit can be removed and replaced with a punch jig. As a result, it is possible to transfer the detection position indicated on the obstacle onto the obstacle without causing a shift in the detection position, or to perform processing such as drilling on the obstacle. Become.

  According to the present invention, it is possible to easily and accurately detect the position of a magnetized object that cannot be visually recognized by an obstacle made of a non-magnetic material. Furthermore, by indicating the detected position on the obstacle, it is possible to perform a desired process on the position.

An embodiment of the present invention will be described with reference to the drawings.
First, the structure of the magnetized object position detection unit according to the present embodiment will be described with reference to FIGS.
1 is an X-axis vertical sectional view showing a schematic configuration of a magnetized object position detecting unit according to the present embodiment, FIG. 2 is a Y-axis vertical sectional view showing a schematic configuration of a magnetized object position detecting unit, and FIG. FIG. 4 is a front view of a displacement display unit provided at one end of the magnet holder, and FIG. 5 is attached to a posture display unit provided in the magnetized object position detection unit. FIG. 6 is a schematic diagram for explaining the relative positional relationship between the displacement display portion and the mask plate.

  As shown in FIGS. 1 and 2, the magnetized object position detection unit 10 includes a case (support frame) 11 having a bottomed cylindrical shape made of aluminum, and a magnet holder 20 disposed inside the case 11. The support unit 30 supports the magnet holder 20 so as to be swingable, and the posture display unit 40 is disposed on the top of the housing 11 and displays the posture of the magnet holder.

  The magnet holder 20 is a rod-shaped body made of aluminum as a whole. A magnet 21 is fitted into one end of the magnet holder 20, and one end face of the magnet 21 is exposed. Further, a spherical plate-like displacement display portion 22 having a larger diameter than the magnet holder 20 and projecting upward is attached to the end of the magnet holder 20 opposite to the side on which the magnet 21 is fitted. ing.

  As shown in FIG. 3, the displacement display unit 22 has a dot pattern 23 formed at the center thereof, and a wide annular pattern 24 centered on the dot pattern 23 is formed therearound. In the present embodiment, the dot pattern 23 and the annular pattern 24 have an orange fluorescent color, and have high brightness and are easily visible.

  The magnet holder 20 is supported by the support portion 30 at the center of gravity in a state where the magnet 21 is fitted downward at the center of the circular cross section of the housing 11, and the center of gravity is used as a fulcrum 25. It can be swung (see FIG. 1).

  As shown in FIG. 4, the support portion 30 includes a first bearing portion 31 and a second bearing portion 32 that further supports the first bearing portion 31 from the outside. The first bearing portion 31 is provided with a rod-shaped first shaft portion 33 that penetrates the magnet holder 20 in the X-axis direction. Both end portions of the first shaft portion 33 are pointed and project from the side surface of the magnet holder 20. An intermediate ring 34 is provided around the portion of the magnet holder 20 where the first shaft portion 33 is provided with a slight gap. In the intermediate ring 34, first bearing screws 35a and 35b are attached to portions facing both ends of the first shaft portion 33, and both ends of the first shaft portion 33 and the first bearing screws 35a and 35b are attached. This is in a state of point contact with the end face. The first holder 31 allows the magnet holder 20 to swing around the X axis.

  On the other hand, the intermediate ring 34 of the first bearing portion 31 is provided with two second shaft portions 36a and 36b on the Y axis orthogonal to the first shaft portion 33 described above. Of each of the second shaft portions 36 a and 36 b, the end located outside the intermediate ring 34 has a pointed shape and protrudes from the side surface of the intermediate ring 34. Around the intermediate ring 34, an outer peripheral ring 37 extending from the inner wall of the housing 11 with a small gap is provided. In the outer ring 37, second bearing screws 38a and 38b are attached to portions facing the ends of the second shaft portions 36a and 36b, and the second shaft portions 36a and 36b protruding from the intermediate ring 34 are attached. One end and the end surfaces of the second bearing screws 38a, 38b are in point contact. The second shaft portions 36a and 36b, the second bearing screws 38a and 38b, and the outer peripheral ring 37 constitute the second bearing portion 32. The second bearing portion 32 causes the magnet holder 20 to swing around the Y axis. It is possible to move.

  By the combination of the swingable directions of the magnet holder 20 in the first bearing portion 31 and the second bearing portion 32, the magnet holder 20 is centered on the point supported by both the bearing portions 31 and 32 in all directions. It is possible to take an inclined posture.

  A light-shielding mask plate 41 having a convex spherical plate shape is attached so as to face the displacement display portion 22 provided at the upper end portion of the magnet holder 20 (see FIG. 1). As shown in FIG. 5, the mask plate 41 is formed with a circular see-through hole (index portion) 42 at the center thereof. The see-through hole 42 has the same size as the diameter of the dot pattern 23 formed in the displacement display portion 22 of the magnet holder 20. In addition, a convex lens 44 is attached above the mask plate 41, and when viewed from above the convex lens 44, the see-through hole 42 is enlarged and displayed.

  The swinging posture of the magnet holder 20 can be confirmed as the posture display unit 40 by the relative positional relationship between the fixed see-through hole 42 and the displacement display unit 22 whose position changes with the swinging posture. In the present embodiment, the positional relationship between the fluoroscopic hole 42 and the dot pattern 23 of the displacement display unit 22 is such that the magnet holder 20 takes a swinging posture in which the magnet 63 to be detected and the magnet 21 to be described later have the shortest distance. As shown in FIG. 6, the dot pattern 23 can be seen through the see-through hole 42.

  Further, the mask plate 41 is provided with four triangular holes (direction indicating fluoroscopic holes) 43 on the circumference centered on the fluoroscopic hole 42. More specifically, as shown in FIG. 5, along the surface of the mask plate 41, on the orthogonal axis that intersects the center of the mask plate 41, the X1 triangular hole 43a in the X1 direction and the X2 triangular hole in the X2 direction, respectively. 43b, a Y1 triangular hole 43c is arranged in the Y1 direction, and a Y2 triangular hole 43d is arranged in the Y2 direction. Each vertex is directed outward. The diameter D2 of the virtual circle connecting the outermost portions of the four triangular holes 43 is the same as the diameter D1 of the inner circumferential circle of the annular pattern 24 formed on the displacement display portion 22 of the magnet holder 20 (see FIG. 3). Or slightly smaller dimensions. When the magnet holder 20 takes a swinging posture in which the magnet 63 to be detected and the magnet 21 to be described later have the shortest distance, the annular pattern 24 is positioned outside the triangular hole 43 as shown in FIG. Thus, the annular pattern 24 cannot be confirmed from the triangular hole 43.

Next, the magnetized object position detecting device 50 including the magnetized object position detecting unit 10 will be described with reference to FIGS.
FIG. 7 is a sectional view showing a schematic configuration of the magnetized object position detecting device according to the present embodiment, and FIG. 8 is a sectional view showing a state where the magnetized object position detecting unit is removed from the magnetized object position detecting device.

  As shown in FIG. 7, the magnetized object position detecting device 50 includes a magnetized object position detecting unit 10 and a main body 51 into which the magnetized object position detecting unit 10 is fitted. The main body 51 has a substantially box shape with an open bottom side, and a mounting hole 52 penetrating to the bottom surface is formed at the approximate center of the top surface. The magnetized object position detection unit 10 is inserted into the mounting hole 52 with the side on which the magnet 21 is mounted facing the bottom surface side of the main body 51. That is, the magnetized object position detecting device 50 is configured such that the bottom surface of the magnetized object position detecting unit 10 is exposed on the bottom surface side. The magnetized object position detection unit 10 is configured to be removable upward from the mounting hole 52 of the main body 51 as shown in FIG. In this case, when the main body 51 is viewed from the upper surface side, the surface of the object on which the magnetized object position detecting device 50 is placed is visible (exposed) through the attachment hole 52.

  Further, two fixing mechanisms 53 for fixing the main body 51 to an object are provided so as to sandwich the attachment hole 52 in the main body 51 (see FIG. 7). The fixing mechanism 53 is provided with a suction cup 54 that is exposed through an opening on the bottom surface side of the main body 51 and sucks and fixes the main body 51 to an object. A suction cup support shaft 55 is attached to the upper surface of the suction cup 54, and the suction cup support shaft 55 protrudes toward the upper surface side of the main body 51 through a shaft insertion hole 56 provided in the upper surface of the main body 51. A disc-shaped main body fixing button 57 is attached to the upper end portion of the suction cup support shaft 55, and the suction cup support shaft 55 is raised and lowered with elastic deformation between the main body fixing button 57 and the upper surface of the main body 51. A permissible spring 58 is interposed.

  Further, a suction path 59 a that penetrates from the upper surface of the suction cup 54 to the side surface of the suction cup support shaft 55 is provided inside the suction cup support shaft 55. The suction path 59 a is connected to a suction port (suction mechanism) 59 attached to the side surface of the suction cup support shaft 55.

Next, a method of using the magnetized object position detection device 50 according to the present embodiment will be described with reference to FIGS. In this embodiment, in particular, a method of using the magnetized object position detecting device 50 in the step of fixing the skin (outer plate) and the rib in the assembly step of the main wing of the large airplane will be exemplified.
FIG. 9 is a cross-sectional view showing a state in which a magnet to be detected is attached so that the position of the bolt hole provided in the rib can be detected, and FIG. 10 is a magnetized object during the search for the position of the magnet to be detected on the skin. 11 is a vertical sectional view of the X-axis showing the position detecting device, FIG. 11 is a vertical sectional view of the Y-axis of the magnetized object position detecting device of FIG. 10, and FIG. 12 is a displacement display unit in the posture display unit of the magnetized object position detecting device of FIG. FIG. 13 is a schematic diagram for explaining the relative positional relationship between the mask plate and the mask plate. FIG. 13 is an X-axis vertical sectional view showing the magnetized object position detecting device in a state where the position detection of the magnet to be detected is completed on the skin. FIG. 15 is a cross-sectional view of the magnetized object position detecting device of FIG. 13 taken along the Y axis, and FIG.

  As shown in FIG. 9, a rib 61 for connecting and fixing the skin 60 (not shown) opposed to the skin 60 is disposed at a predetermined position in the longitudinal direction of the CFRP skin 60 which is a nonmagnetic material. . The rib 61 includes a plate surface 61a that comes into contact with the skin 60 and a column portion 61b that extends perpendicularly from the plate surface 61a. A fixed hole 62 for inserting a bolt or the like is formed in a predetermined portion of the plate surface 61a. Below the fixed hole 62 (on the side opposite to the skin 60), a flange 64 into which a magnet for detection (magnetized object) 63 is fitted is attached. The magnet 63 to be detected is magnetically attracted to the magnet 21 provided in the magnetized object position detection unit 10, and is disposed immediately below the fixed hole 62, that is, on an extension line of the axis of the fixed hole 62.

  The magnetized object position detecting device 50 according to the present embodiment detects the position where the magnet 63 to be detected is disposed, thereby specifying the position of the fixed hole 62 immediately above it. First, in the magnetized object position detecting device 50, the suction cup 54 is lifted slightly from the lowermost end part of the main body 51 (the lowermost end part of the magnetized object position detecting unit 10), and a vacuum is applied to the suction port 59, for example. A suction operation is performed by connecting a pump (not shown). In this case, even if the magnetized object position detecting device 50 is placed on the skin 60, the suction cup 54 is not in contact with the skin 60. Therefore, the magnetized object position detecting device 50 is fixed at that position. It can be moved freely without

  As shown in FIGS. 10 and 11, the magnetized object position detection device 50 is disposed on the upper surface of the skin 60 at a position that approximately overlaps with the fixing hole 62 (the detected magnet 63) of the rib 61. Then, in the magnetized object position detecting unit 10 attached to the magnetized object position detecting device 50, the magnet 21 attached to the tip of the magnet holder 20 passes through the skin 60 and the plate surface 61a of the rib 61, and the magnet 63 to be detected. And attract magnetically. Here, since the magnet holder 20 is supported so as to be swingable about the fulcrum 25, the end of the magnet holder 20 on the side including the magnet 21 has a swinging posture directed toward the magnet 63 to be detected. Will be taken.

  When the swinging posture of the magnet holder 20 at this time is confirmed in the posture display unit 40 on the upper end side of the magnetized object position detection unit 10, the state is as shown in FIG. That is, in FIG. 10, since the magnetized object position detecting device 50 is displaced in the X1 direction with respect to the magnet 63 to be detected, the displacement display unit 22 is positioned in the X1 direction relative to the mask plate 41. Slip. Thereby, a part of the annular pattern 24 of the displacement display unit 22 is confirmed by the X2 triangular hole 43b of the mask plate 41. On the other hand, in FIG. 11, since the magnetized object position detection device 50 is displaced in the Y1 direction with respect to the magnet 63 to be detected, the displacement display unit 22 is positioned in the Y1 direction relative to the mask plate 41. Slip. Thereby, a part of the annular pattern 24 of the displacement display part 22 is confirmed by the Y2 triangular hole 43d of the mask plate 41.

  Therefore, the magnetized object position detecting device 50 is moved in the direction in which the X2 triangular hole 43b and the Y2 triangular hole 43d in which the annular pattern 24 is confirmed. Then, as the distance between the magnet 21 and the magnet 63 to be detected becomes smaller, the magnet holder 20 changes to take a swinging posture close to an upright position, and is visually recognized from the X2 triangular hole 43b and the Y2 triangular hole 43d. The ratio of the annular pattern 24 gradually decreases.

  When the annular pattern 24 is no longer visible from all the triangular holes 43a, 43b, 43c, and 43d, and the dot pattern 23 of the displacement display unit 22 is visible from the transparent hole 42 of the mask plate 41 ( In the state shown in FIG. 6, the movement of the magnetized object position detecting device 50 is stopped at that position. Then, the relative positional relationship between the magnetized object position detection device 50 and the magnet for detection 63 is in the state shown in FIGS. 13 and 14. That is, the magnet holder 20 provided in the magnetized object position detection unit 10 has a swinging posture in which the magnet 21 and the magnet 63 to be detected have the shortest distance, and is on a perpendicular extending from the magnet 21 to the skin 60. The positional relationship is that the magnet 63 to be detected exists. In this way, the position where the magnet 63 to be detected is disposed, that is, the position of the fixing hole 62 provided in the rib 61 can be detected through the skin 60.

  When the position detection of the magnet 63 to be detected is completed as described above, the main body fixing button 57 of the magnetized object position detecting device 50 is pushed in the axial direction of the suction cup support shaft 55 at that position. Then, the suction cup support shaft 55 is lowered, and accordingly, the suction cup 54 is also lowered until it contacts the surface of the skin 60. Since the inside of the suction cup 54 is always sucked from the suction port 59, an adsorption force is generated between the suction cup 54 and the skin 60, and the main body 51 is fixed on the skin 60. Thereby, after detecting the position of the magnet 63 to be detected, it is possible to suppress the positional deviation between the magnet 63 to be detected and the magnetized object position detecting device 50.

  Subsequently, the operation shifts to an operation for opening a hole for inserting a bolt into the skin 60. First, the magnetized object position detection unit 10 is removed from the attachment hole 52 of the main body 51, and a punching punch 70 is attached to the attachment hole 52 as shown in FIG. The outer diameter of the punching punch 70 is the same as the outer diameter of the magnetized object position detection unit 10, and a punching unit 71 is attached to the center of the punching punch 70. By pressing the perforating unit 71 from above, a desired hole can be opened at a position overlapping the fixing hole 62 of the rib 61 in the skin 60.

  Finally, the suction of the vacuum pump connected to the suction port 59 is stopped. Then, the suction force between the suction cup 54 and the skin 60 is eliminated, and the main body fixing button 57 is pushed up by the elastic recovery force of the spring 58, whereby the suction cup 54 is pulled upward. Thereby, the main body 51 can be removed from the skin 60, and then the skin 60 and the rib 61 can be fixed with bolts.

As described above, the magnetized object position detecting unit 10 and the magnetized object position detecting device 50 including the magnetized object position detecting unit 10 according to the present embodiment have the following operational effects.
The magnetized object position detection unit 10 according to the present embodiment includes a magnet holder 20 provided with a magnet 21 that is magnetically attracted to the magnet 63 to be detected on one end side, and the magnet holder 20 is swung around its center of gravity as a fulcrum 25. The magnet holder depends on the relative positional relationship between the housing 11 that is movably supported, the displacement display portion 22 provided at the end of the magnet holder 20 opposite to the magnet 21, and the indicator portion 42 on the housing 11 side. An attitude display unit 40 that displays 20 swinging attitudes is provided.

  When the magnetized object position detection unit 10 having such a configuration is arranged on the surface of the skin 60 opposite to the magnet 63 for detection, the magnet 21 and the magnet 63 for detection provided on one end side of the magnet holder 20 are provided. Is attracted through the skin 60, the end of the magnet holder 20 moves toward the magnet 63 for detection. Therefore, if the magnetized object position detecting unit 10 is moved on the skin 60 and the distance between the magnet 21 provided on the magnet holder 20 and the magnet 63 to be detected is varied, the magnetized object position detecting unit 10 is supported so as to be swingable. The posture of the magnet holder 20 changes when the magnet holder 20 swings around the fulcrum 25. This change in the attitude of the magnet holder 20 is recognized by an attitude display section 40 comprising a displacement display section 22 provided at the end of the magnet holder 20 opposite to the magnet 21 and an indicator section 42 on the housing 11 side. Can do. Therefore, when the magnetized object position detection unit 10 is moved while looking at the posture display unit 40 and the swinging posture of the magnet holder 20 that minimizes the distance between the magnet 21 and the magnet 63 for detection is taken. The magnet 63 to be detected is arranged on the perpendicular extending from the magnet 21 to the skin 60.

  Furthermore, since the magnet holder 20 is supported so as to be able to swing with its center of gravity as a fulcrum 25, for example, even when the skin 60 forms an inclined surface, the influence of gravity can be eliminated. As described above, according to the magnetized object position detection unit 10 of the present invention, the magnet 63 to be detected in the region hidden by the skin 60 can be used without worrying about the shape of the skin 60 made of nonmagnetic material. The position can be detected easily and accurately.

  In the present embodiment, the magnet holder 20 includes a first bearing portion 31 that supports the magnet holder 20 so as to be swingable about the X axis, and a Y axis that is orthogonal to the X axis. Is supported by a second bearing portion 32 that is swingably supported around the center.

  According to the above configuration, the magnet holder 20 is mainly supported by the two bearing portions 31 and 32 by the combination of the first bearing portion 31 and the second bearing portion 32 in the swingable direction of the magnet holder 20. As a result, it is possible to take a posture inclined in every direction. As a result, the magnet 21 provided at the end of the magnet holder 20 can swing the magnet holder 20 regardless of the direction in which the magnet 63 to be detected is arranged with respect to the magnetized object position detection unit 10. With this change, the direction of the magnet 63 to be detected can be directed, and the position where the magnet 63 to be detected is disposed can be detected.

  In the present embodiment, a light-shielding mask plate 41 is provided on the upper portion of the housing 11 corresponding to the displacement display portion 22, and a dot pattern 23 is formed on the displacement display portion 22 of the magnet holder 20. 41 is formed with a see-through hole 42 through which the dot pattern 23 can be seen in the swinging posture of the magnet holder 20 when the magnet 21 and the magnet 63 to be detected have the shortest distance. A lens 44 for enlarging the see-through hole 42 of the mask plate 41 is provided.

  In this case, when the magnetized object position detection unit 10 is moved on the skin 60 while looking through the see-through hole 42 provided in the mask plate 41, the dot pattern 23 formed on the magnet holder 20 is confirmed from the see-through hole 42. The magnetized object position detecting unit 10 is stopped at that position. Then, the to-be-detected magnet 63 is arranged on the perpendicular extending from the magnet 21 to the skin 60 at that time. Further, since the see-through hole 42 is enlarged and displayed by the lens 44, it can be confirmed that the see-through hole 42 and the dot pattern 23 are exactly coincident with each other, and the position where the magnet 63 for detection is arranged can be accurately confirmed. Can be detected.

  In particular, in the present embodiment, an annular pattern 24 centered on the dot pattern 23 is further formed as the displacement display section 22, and the mask plate 41 has four triangular holes 43 a, independent from each other on orthogonal axes that intersect at the center. 43b, 43c, 43d are formed, and the outermost part of these triangular holes 43a, 43b, 43c, 43d is located when the magnet holder 20 takes a swinging posture in which the magnet 21 and the magnet 63 to be detected have the shortest distance. It is assumed to overlap with the inner periphery of the annular pattern 24.

  According to such a configuration, the relative positional relationship between the magnet 21 and the magnet 63 to be detected is indicated by the mode of the annular pattern 24 confirmed from the triangular holes 43a, 43b, 43c, and 43d, and the magnetization is performed. The direction in which the object position detection unit 10 should be moved is indicated. When the magnet 21 and the magnet for detection 63 are not at the shortest distance, the annular pattern 24 is confirmed from one or two of the triangular holes 43a, 43b, 43c, 43d of the mask plate 41. The annular pattern 24 is not confirmed from the remaining triangular holes. In this case, if the magnetized object position detection unit 10 is moved in the direction in which the triangular hole in which the annular pattern 24 is confirmed, the distance between the magnet 21 and the magnet 63 to be detected becomes closer. The mode of the annular pattern 24 confirmed from the triangular hole changes. When the magnetized object position detection unit 10 is stopped at a position where the annular pattern 24 is not confirmed from all the triangular holes 43a, 43b, 43c, 43d, the perpendicular line extending from the magnet 21 to the skin 60 at that time Thus, the magnet 63 to be detected is arranged.

  The magnetized object position detecting device 50 according to the present embodiment includes the above-described magnetized object position detecting unit 10 and a main body 51 having a mounting hole 52 to which the magnetized object position detecting unit 10 is detachably attached. When the magnetized object position detection unit 10 is removed, the surface of the skin 60 is exposed through the attachment hole 52.

  According to the magnetized object position detecting device 50 having the above-described configuration, first, the position of the magnet 63 to be detected is detected by moving the skin 60 with the magnetized object position detecting unit 10 attached, and then detecting the magnetized object position. By removing the unit 10 from the main body, the surface of the skin 60 is exposed through the mounting hole 52 of the main body 51. Here, particularly in the present embodiment, in the magnetized object position detection unit 10, the position of the magnet 21 when the distance between the magnet 21 and the magnet 63 to be detected is the minimum is the attachment hole 52 of the main body 51. To be the center of Therefore, after removing the magnetized object position detecting unit 10 from the main body 51, the surface of the skin 60 exposed through the attachment hole 52 indicates that the magnet 63 to be detected is arranged on the perpendicular extending from the center. Will be. In this way, an index indicating the position of the magnet for detection 63 can be formed over the skin 60, and a desired process can be performed on the position of the magnet for detection 63 using this index.

  In the present embodiment, the main body 51 includes a fixing mechanism 53 including a suction cup 54 disposed on the side of the main body 51 facing the skin 60 and a suction port 59 for sucking air in the suction cup 54. Is provided.

  In this case, after detecting the position of the magnet 63 to be detected, the magnetized object position detecting device 50 is fixed on the skin 60 by the fixing mechanism 53 provided in the main body 51, for example, when a person is holding it. In comparison, the positional deviation between the main body 51 and the skin 60 hardly occurs, and the detection position of the magnet 63 to be detected can be accurately indicated. Further, by adopting a simple configuration such as the suction cup structure of the fixing mechanism 53, the magnetized object position detecting device 50 does not need to be a large-scale device and can be easily handled. .

  Further, in the present embodiment, when the magnetized object position detecting unit 10 is removed, the punching punch 70 that can be exchanged with the magnetized object position detecting unit 10 is provided.

  According to such a configuration, after detecting the position of the magnet 63 to be detected with the magnetized object position detecting unit 10 attached, the magnetized object position detecting unit 10 is removed and replaced with the punch 70. be able to. As a result, it is possible to drill a hole at the detection position shown on the skin 60 without causing a shift in the detection position.

  The present invention is not limited to the embodiments described with reference to the above description and drawings. For example, the following embodiments are also included in the technical scope of the present invention.

  (1) In the above-described embodiment, after detecting the position of the magnet 63 to be detected by the magnetized object position detecting unit 10, the magnetized object position detecting device 50 is fixed by the fixing mechanism 53 and used as an index of the detected position. However, for example, the following means are also included in the present invention. An optical member is attached to the upper end portion of the magnetized object position detection unit 10, and after detecting the position of the magnet 63 to be detected, the whole area is scanned by a separately prepared laser. Then, by detecting the laser reflected by the optical member, the position where the optical member is arranged is recorded as coordinates, and the data is sent to the host computer. After repeating this operation and accumulating the position of the magnet 63 to be detected as coordinate data, for example, a means for performing drilling or the like may be used.

  (2) In the above-described embodiment, after the position of the magnet 63 to be detected is detected by the magnetized object position detecting unit 10, the magnetized object position detecting unit 10 is replaced with the punching punch 70, and the hole is formed in the skin 60. Although the opening process is performed, for example, a means for transferring the detection position onto the skin 60 by a stamp or the like may be used.

X-axis vertical sectional view showing a schematic configuration of a magnetized object position detection unit according to an embodiment of the present invention. Y-axis vertical sectional view showing schematic configuration of magnetized object position detection unit Front view of a support portion that supports a magnet holder provided in the magnetized object position detection unit Front view of the displacement display at one end of the magnet holder Front view of the mask plate attached to the posture display section of the magnetized object position detection unit Schematic diagram explaining the relative positional relationship between the displacement display section and the mask plate Sectional drawing which shows schematic structure of the magnetic material position detection apparatus which concerns on one Embodiment of this invention. Sectional drawing which shows the state which removed the magnetized object position detection unit from the magnetized object position detection apparatus Sectional drawing which shows the state which attached the magnet for a detection so that the position of the bolt hole provided in the rib was detectable X-axis vertical sectional view showing a magnetized object position detecting device that is searching for the position of the magnet to be detected on the skin Y-axis vertical sectional view of the magnetized object position detecting device of FIG. FIG. 10 is a schematic diagram for explaining the relative positional relationship between the displacement display unit and the mask plate in the posture display unit of the magnetized object position detection device of FIG. X-axis vertical sectional view showing a magnetized object position detecting device in a state where the position detection of the magnet to be detected is completed on the skin Y-axis vertical sectional view of the magnetized object position detecting device of FIG. Sectional drawing which shows the state in which the punch was attached to the magnetized object position detection apparatus

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 ... Magnetized object position detection unit, 11 ... Housing | casing (support frame), 20 ... Magnet holder, 21 ... Magnet, 22 ... Displacement display part, 23 ... Dot pattern, 24 ... Ring pattern, 25 ... Supporting point, 31 ... 1st 1 bearing portion, 32 ... second bearing portion, 40 ... posture display portion, 41 ... mask plate, 42 ... perspective hole (index portion), 43a, 43b, 43c, 43d ... triangular hole (direction indicating fluoroscopic hole), 44 ... Lens, 50 ... Magnetized object position detection device, 51 ... Main body, 52 ... Mounting hole, 53 ... Fixing mechanism (fixing means), 54 ... Suction cup, 59 ... Suction port (suction mechanism), 60 ... Skin (obstacle), 63: Magnet to be detected (magnetized object), 70 ... Hole punch (punch jig)

Claims (7)

A magnetized object position detection unit for detecting the position of a magnetized object in a portion hidden by an obstacle made of non-magnetic material through the obstacle,
A magnet holder including a magnet that magnetically attracts the magnetized object on one end side;
A support frame that swingably supports the magnet holder with the center of gravity as a fulcrum;
The magnet holder swings around the fulcrum according to the relative positional relationship between the displacement display portion provided at the end of the magnet holder opposite to the magnet and the indicator portion provided at the support frame. A magnetized object position detection unit comprising a posture display unit for displaying a dynamic posture.   The magnet holder includes a first bearing portion that supports the magnet holder in a swingable manner about the X axis, and a first bearing portion that supports the first bearing portion in a swingable manner about a Y axis that is orthogonal to the X axis. The magnetized object position detecting unit according to claim 1, wherein the magnetized object position detecting unit is supported by two bearing portions.   The support frame is provided with a mask plate corresponding to the displacement display portion, the displacement display portion is a dot pattern provided on the magnet holder, the indicator portion is formed on the mask plate, and the magnet and This is a see-through hole through which the dot pattern can be seen in the swinging posture of the magnet holder when the magnetized object is at the shortest distance, and the see-through hole portion of the mask plate is enlarged in the posture display portion The magnetized object position detection unit according to claim 1, wherein a lens is provided. The displacement display portion further includes an annular pattern centered on the dot pattern, and the mask plate is formed with four direction indicating fluoroscopic holes independent from each other on orthogonal axes intersecting at the center,
Each said direction support see-through hole is distribute | arranged on the circumference along the said annular pattern in the rocking | fluctuation attitude | position of the said magnet holder when the said magnet and the said magnetized object become the shortest distance. Item 4. The magnetized object position detection unit according to Item 3. A magnetized object position detecting device that indicates the position of the magnetized object detected by the magnetized object position detecting unit according to any one of claims 1 to 4 on the obstacle,
The magnetized object position detection unit, and a main body having a mounting hole to which the magnetized object position detection unit is detachably attached,
When the magnetized object position detection unit is removed, the surface of the obstacle is exposed through the mounting hole.   The main body is provided with fixing means including a suction cup disposed on a side of the main body facing the obstacle, and a suction mechanism for sucking air in the suction cup. The magnetized object position detecting device according to claim 5.   When the magnetized object position detection unit is removed, it has a punch jig that can be exchanged with the magnetized object position detection unit, and the punch jig transfers or processes the detection position of the magnetized object. The magnetized object position detecting device according to claim 5 or 6, further comprising a unit.

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