JP5838803B2 - Rotor disassembly device - Google Patents

Description

  The present invention relates to a rotor disassembling apparatus for recovering a demagnetized rare earth magnet material from a rotor.

  In recent years, rare earth magnets using rare earths (rare earth elements) are used not only in the rotors of motors of next-generation environment-friendly vehicles such as hybrid vehicles, but also in OA equipment and home appliances that make full use of advanced technologies. In particular, in the above-mentioned home appliances, rare earth magnets are used in the rotors of relatively new types of air conditioners, refrigerator compressors, or washing machine motors manufactured after 2000.

  Such rare earths are biased internationally in their production areas or countries, and effective use by recycling after use is required to ensure a stable supply against factors such as international politics and exchange rate fluctuations.

  By the way, considering that the household appliances have been used for about 10 years, it is estimated that household appliances using rare earth magnets, especially air conditioners and washing machines, have already been recovered in the existing household appliance recycling route. . Therefore, it is considered possible to recover recycled resources such as rare metals and rare earths by collecting home appliances such as air conditioners and washing machines using rare earth magnets from the home appliance recycling route.

  However, although the process of collecting and recycling used home appliances has been commercialized by multiple vendors, it can be roughly divided into materials such as iron, copper, silicon steel plates, etc. by simple sorting equipment, and it has a relatively large volume. For example, remove the motor, which is a component from the compressor or washing machine of an air conditioner or refrigerator, and disassemble the motor, and remove only the rotor from the rotor assembly. Separating and taking out and collecting the rare earth magnets incorporated in the magnets requires little effort and the recycling costs do not match.

By the way, a rotor assembly obtained by further simply disassembling a motor taken out from such home appliances or the like generally has a shape and a structure as shown in FIG.
That is, the rotor assembly 15 is roughly composed of a shell 18 that includes a rotating body 17 integrated with a shaft 16 that is an output shaft of the motor, and a cylindrical rotor 1 that is fixed to the shaft 16 by shrink fitting. It is configured.

  Here, as shown in FIG. 6B, the rotor 1 has a hole portion 1a into which the shaft 16 is inserted and fitted in the center in the axial direction, and the outer peripheral portion has a circumferential direction. The through holes 1b are formed at a plurality of locations (for example, four locations as shown in the figure) at equal intervals. And between these through-holes 1b, the magnet through-hole 1c which inserts the flat-plate rare earth magnet 20a penetrates in the axial direction, and is drilled.

  The rare earth magnet 20a inserted into the magnet through hole 1c is provided with presser plates 2 at both ends of the rotor 1, and is inserted into the hole portions 2c of the presser plate 2 and the through holes 1b of the rotor 1. The pin 3 is housed in the rotor 1 by crimping both ends. The inserted rare earth magnet 20a is a neodymium magnet, a samarium cobalt magnet, or the like.

  Therefore, in order to collect and recycle the rare earth magnet 20 a from the rotor assembly 15, it is necessary to first separate the rotor 1 from the rotor assembly 15. As the separation method, the rotor 1 is fixed to the shaft 16 integrated with the shell 18 containing the rotating body 17 by shrink fitting, so that the shaft 16 is cut or the rotor 1 is fixed. Then, the rotor 1 is separated from the rotor assembly 15 by, for example, a method of pushing the shaft 16 and a method in which the shell 18 is fixed and the rotor 1 is pushed up by applying pressure in a direction away from the shell 18.

  Next, the rotor 1 separated from the rotor assembly 15 is demagnetized. This demagnetization treatment can be performed even at room temperature demagnetization (electrical demagnetization), but thermal demagnetization that can remove the resin and does not require post-treatment is preferable. Then, after the lapse of a specified time, the rotor 1 is taken out from the heating furnace, conveyed to the cooling chamber, and cooled.

  Then, the rare earth magnet material 20 accommodated in the cooled rotor 1 is taken out and collected. At this point, the rotor 1 is accommodated in the rotor 1 and the holding plate 2 is pinned. In this state, it cannot be taken out because it is fixed to the rotor 1 by 3 and sealed. Therefore, a step of removing the pressing plate 2 from the rotor 1 is necessary.

  By the way, since both ends of the pin 3 fixing the presser plate 2 to the rotor 1 are crimped, the crimped portions are removed by a manual grinder or the like and removed all. After that, the presser plate 2 is removed from the rotor 1. However, since there are four pins 3 (in this example) for fixing the presser plate 2 to the rotor 1, scraping off the caulked portion by manual work is not only efficient, but also occurs during cutting. There is also concern about the impact on the human body due to dust and sparks. Further, there is a problem that burrs or the like are generated at the end portion of the pin 3 shaved by the manual grinder, and the pressing plate 2 cannot be removed from the rotor 1 even if the crimped portion is cut off.

  Therefore, conventionally, the position of such a pin, bolt, or hole is detected by a detection device, and tightening or cutting is performed by a machine based on this detection information. For example, in Patent Document 1 below, a positioning table that can move in a planar direction and a vertical direction, a screw tightening head that is attached to the table and tightens a screwed body, and a predetermined distance to the screw tightening head. For detecting the position of the screw tightening hole of the body to be screwed, the controller for controlling the operation of the table and the screw tightening head, and the position of the screw tightening hole and the amount of displacement of the screw tightening hole captured by the camera There has been proposed a screw tightening device including a hole position detection control device for calculating.

  In order to disassemble the rotor 1 and the pressing plate 2 by using the detection method used in the conventional screw fastening device, the rotor 1 is fixed to a jig or the like, and the surface 2a of the pressing plate 2 is used. The position of the pin 3 that fixes the presser plate 2 is detected by processing this image with a control device, and on the side of the crimped portion of the pin 3 based on the detected information Depending on the cutting depth from the end of the rotor 1 to the inside of the end portion of the rotor 1, the pin 3 can be cut and removed using a drill or the like, and the pressing plate 2 can be removed.

  However, since the camera used in the conventional fastening device can detect only the two-dimensional position of the X axis and the Y axis, for example, when a general-purpose rotor 1 is used, FIG. ) And (b), if the surface 2a of the pressing plate 2 is flat, the position of the pin 3 can be detected and the cutting depth for cutting each pin 3 can be set in advance. As shown in FIGS. 7 (a) and 7 (b), depending on the type of the rotor 1, a non-circular pressing plate 2 b is provided on the surface 2 a of the pressing plate 2, and the non-circular shape with respect to the axial direction of the rotor 1. There is a structure in which a high portion formed by the shape pressing plate 2b and a low portion formed by the surface 2a of the pressing plate 2 are formed.

  Therefore, the non-circular pressing plate 2b and the surface 2a of the pressing plate 2 are manually measured in advance, and based on the measured numerical values, the high portion of the non-circular pressing plate 2b and the surface 2a of the pressing plate 2 It is necessary to calculate and calculate the cutting depth of the pin 3 in the low part. As a result, when several types of rotors 1 are handled, there are problems that the cost increases due to breakage or wear of the cutting tool due to a measurement error or the like and the work efficiency is poor.

  Further, when the presser plate 2 is removed by a machine after the pin 3 is removed by the cutting depth, it is necessary to apply an impact only to the presser plate 2 and remove it, so that FIGS. 7A and 7B are used. In the case where the high portion by the non-circular press plate 2b and the low portion by the surface 2a of the press plate 2 are formed with respect to the axial direction of the rotor 1, like the press plate 2 of the rotor 1 shown in FIG. If the place where the impact is applied is not manually measured in advance, there is a problem that a removal error or a removal member comes into contact with the rotor 1 and is damaged, resulting in a decrease in workability and an increase in maintenance costs.

Japanese Patent Publication No. 5-61059

  The present invention has been made in view of the above circumstances, and provides a rotor disassembling apparatus that makes it possible to easily take out and recycle a rare earth magnet from a rotor separated from a rotor assembly of a motor taken out from home appliances and the like. It is an object to do.

In order to solve the above-mentioned problem, the invention according to claim 1 is provided at the rotor and both ends of the rotor as a pre-process for recovering the rare earth magnet material from the rotor in which the rare earth magnet material is housed. And a disassembling apparatus for disassembling a pressing plate fixed by the head of a stick-shaped fixing member inserted through a through-hole formed in the axial direction of the rotor, and a jig for fixing the rotor And a pair of first laser sensors, a light emitting unit, and a light receiving unit, each of which includes an image position detecting device that detects the position of the head of the stick-shaped fixing member on the surface of the pressing plate, and a light emitting unit and a light receiving unit. and parts and the respective light receiving portions of the pair of second laser sensor having a light emitting portion is disposed to face the radial direction of the rotor, the axis of the first laser sensor and the second laser sensor the rotor The rotor height detection device detects the height based on the position where the laser beam of each laser sensor is blocked by moving in the direction, the position information detected by the image position detection device, and the rotor height detection device. After cutting the rod-shaped fixing member by calculating the cutting depth from the surface of the pressing plate to the inner side of the end of the rotor based on the height information, after rotating the rotor 90 degrees, A reversing device for moving the end of the rotor cut by the cutting device on the basis of height information detected by the rotor height detecting device to the removal position in the axial direction of the rotor, and a brush member at the removal position And a detaching device for removing the pressing plate by moving in the radial direction of the rotor.

According to the first aspect of the present invention, the position of the head of the stick-shaped fixing member on the surface of the pressing plate is detected by the image position detection device, and the height of the rotor is detected by the rotor height detection device, The cutting depth from the surface of the pressing plate to the inside of the end of the rotor is calculated based on the position information detected by the image position detection device and the height information detected by the rotor height detection device. Therefore, even if the high and low portions are formed on the surface of the pressing plate, and the rod-like fixing members are disposed on the respective surfaces, the rod-like members can be cut depending on the appropriate cutting depth. It is possible to cut from the head of the fixing member to the inside of the end of the rotor. Thereby, the breakage and wear frequency of the cutting tool due to the measurement error of the cutting depth can be reduced, and the running cost can be reduced. Further, when the rotor is rotated 90 ° by the reversing device, the pressing plate falls due to an impact or the weight of the pressing plate, so that the work efficiency can be improved.

Further, when the retainer plate is removed by the removal device without removing the retainer plate when the rotor is rotated 90 °, the rotor height is detected by the rotor height detection device after the rotor is rotated 90 °. Based on the height information, the end of the rotor cut by the cutting device is moved in the axial direction of the rotor to the removal position, and the brush member is moved in the radial direction of the rotor to Since the plate is removed, the brush member can be properly brought into contact with the pressing plate without measuring the position of the pressing plate again. As a result, it is possible to prevent mistakes in the pressing plate removal and breakage of the brush member, improve workability, and reduce maintenance costs.

It is a front view showing one embodiment of a rotor disassembly device concerning the present invention. It is AA right side surface sectional drawing of FIG. The partial schematic of the rotor height detection apparatus of FIG. 1 is shown, (a) is a front view, (b) is a right view. It is BB right side sectional drawing of FIG. It is CC right side sectional drawing of FIG. 1 shows a general rotor assembly separated from a used motor, where (a) is a perspective view and (b) is an exploded perspective view of the rotor. FIG. 1 shows a general rotor assembly separated from a used motor, wherein (a) is a perspective view and (b) is an exploded perspective view of a rotor in which a non-circular pressing plate is provided on a pressing plate.

Hereinafter, the present invention will be specifically described based on an embodiment. In the present embodiment, the rotor 1 has the shape shown in FIG.
As shown in FIG. 1, the rotor disassembling apparatus 21 of the present invention includes a jig 4 for fixing the rotor 1 on a pedestal 14 via a conveyance rail 13 and a pin (rod-like shape) for fixing the pressing plate 2 to the rotor 1. The image position detecting device 5 for detecting the position of the caulking portion of the fixing member 3 by an image, and a non-circular pressing plate 2b provided in the axial direction of the rotor 1 formed on the surface 2a of the pressing plate 2 And the rotor height detecting device 6 for detecting the height positions of the surface 2a of the holding plate 2 by the first laser sensor 6a and the second laser sensor 6b, and the swaged portion side of the pin 3 at a predetermined cutting depth. Are provided with a cutting device 7 for cutting by means of, a reversing jig 44 for fixing the rotor 1 via the reversing transport rail 13a, and a removing device 8 for removing the pressing plate 2 of the rotor 1. On the side of the It is schematically constituted by 12.

  Here, as shown in FIG. 7B, the rotor 1 has a hole portion 1a into which the shaft 16 is inserted and fitted in the center in the axial direction, and the outer peripheral portion has a circumferential direction. Through holes 1b are formed at a plurality of locations (for example, four locations as shown in the figure) at equal intervals. And between these through-holes 1b, the magnet through-hole 1c which inserts the flat-plate rare earth magnet 20a penetrates in the axial direction, and is drilled.

The rare earth magnet 20a inserted into the magnet through hole 1c is provided with the pressing plates 2 at both ends of the rotor 1, and is inserted into the holes 2c of the pressing plate 2 and the through holes 1b of the rotor 1. The both ends of the pin 3 are accommodated in the rotor 1 by crimping. A non-circular pressing plate 2b is provided on the surface 2a side of the pressing plate 2, and a height difference is generated between the non-circular pressing plate 2b and the surface 2a of the pressing plate 2 in the axial direction of the rotor. The non-circular pressing plate 2b has a horseshoe shape, three hole portions 2e having the same diameter as the hole portion 2c of the pressing plate 2 are formed, and the pin 3 is inserted therethrough.
The inserted rare earth magnet 20a is a neodymium magnet, a samarium cobalt magnet, or the like.

  The jig 4 transported on the transport rail 13 is provided with a gripping member 4 a that grips and fixes the outer peripheral surface of the rotor 1. The gripping member 4a is fixed to each of the racks in which two racks are engaged with each other in the radial direction with respect to one pinion gear. As a result, when the gripping member 4a on one side moves toward the outer peripheral surface of the rotor 1, the gripping member 4a on the other side also moves toward the outer peripheral surface of the rotor 1 at the same time, thereby fixing the rotor 1 having various diameters. Even in this case, the rotor 1 can always be arranged and fixed at the center of the jig 4.

  The image position detection device 5 is disposed on the upstream side of the transport rail 13 and is disposed above the rotor 1 fixed to the jig 4 that moves on the transport rail 13 in the axial direction. A camera 5a for photographing the surface 2a of the pressing plate 2 including the crimped portion of the pin 3 for fixing the pressing plate 2 to the dome, and a dome-shaped lighting device 5b for irradiating the surface 2a of the pressing plate 2 are provided.

A rotor height detection device 6 is disposed below the image position detection device 5. As shown in FIGS. 3A and 3B, the rotor height detection device 6 includes a pair of first laser sensors 6a including a light emitting unit and a light receiving unit, and a light emitting unit and a light receiving unit. A pair of second laser sensors 6b are attached to a gate-shaped support member 6c with a light emitting portion and a light receiving portion facing each other when viewed from the front.
The jig 4 is arranged so that the light emitting portion and the light receiving portion of the first laser sensor 6a face each other in the radial direction of the rotor 1 with a non-circular holding plate 2b formed on the surface of the holding plate 2 interposed therebetween. At the same time, the light emitting portion and the light receiving portion of the second laser sensor 6b are arranged to face each other in the axial direction of the rotor 1 with the surface 2a of the holding plate 2 except the non-circular holding plate 2b interposed therebetween. The rotor 1 is fixed.

  Further, the image position detection device 5 and the rotor height detection device 6 are disposed on the mounting plate 22. The mounting plate 22 is provided so as to be movable in the axial direction of the rotor 1 fixed to the jig 4.

  Further, a cutting device 7 is disposed downstream of the image position detection device 5 and the rotor height detection device 6. The cutting device 7 is provided with a drill 7 a that cuts the crimped portion side of the pin 3. The drill 7a can move in the axial direction of the rotor 1 fixed to the jig 4, and can move to the position of the crimping portion of each pin 3 based on the position information of the image position detecting device 5. Is provided.

  A handling device 11 is disposed on the downstream side of the cutting device 7. The handling device 11 is provided with a gripping member 11 a that grips the rotor 1 fixed to the jig 4. As shown in FIG. 5, the gripping member 11 a is provided so as to be movable in the axial direction of the rotor 1 fixed to the jig 4. Further, the gripping member 11a moves in the transport direction so as to sandwich the outer peripheral surface of the rotor 1 and grip the rotor 1 from the jig 4 and attach it to the reversing jig 44 provided on the reversing transport rail 13a. It is provided as possible.

Further, the reversing conveyance rail 13a is rotated by the reversing jig 44 and then the end of the rotor 1 on the side cut by the cutting device 7 based on the height information detected by the rotor height detecting device 6. Is installed in the axial direction of the rotor 1 to the removal position. The removal position is an optimum position for the brush member 9 provided in the removal device 8 to move in the radial direction of the rotor 1 and to come into contact with the pressing plate 2. For example, it is a position on the inner side in the thickness direction from the surface 2 a of the pressing plate 2.

  Then, the reversing device 44 rotates the reversing jig 44 by 90 °. In addition, the reversing jig 44 is provided with a gripping member 44 a that is fixed with the outer peripheral surface of the rotor 1 sandwiched between the reversing jig 44 and the jig 4. The gripping member 44a is fixed to each of the racks in which two racks are engaged with each other in the radial direction with respect to one pinion gear. The center of the reversing jig 44 is provided with a rod (not shown) to be inserted into the hole 1a into which the shaft 16 is inserted at the center of the rotor 1, and a spring is inserted into this rod. It is arranged.

A detaching device 8 is disposed downstream of the reversing device 10. The removal device 8 is provided so as to be movable in the radial direction of the rotor 1 held by the reversing jig 44 when the reversing jig 44 is rotated by 90 ° by the reversing device 10. Further, the detaching device 8 is provided with a brush member 9, and the brush member 9 is provided with a brush 9b on the outer peripheral surface of a cylindrical base 9a. The brush member 9 is provided so as to rotate about the axis of the rotor 1 held by the reversing jig 44 when the reversing jig 44 is rotated by 90 ° by the reversing device 10. .

  Further, an operation panel 12 is disposed on the side surface of the base 14. The operation panel 12 is provided with a control device (not shown) to set and operate the image position detection device 5, rotor height detection device 6, cutting device 7, handling device 11, reversing device 10, and removal device 8. It can be performed.

  In order to disassemble the rotor 1 using the rotor disassembling apparatus 21 having the above configuration, first, the rotor assembly 15 is separated from the motor member of the compressor by a machine and manual work. Next, the rotor 1 is separated from the rotor assembly 15. For separation, for example, a method of cutting the shaft 16 or a method of fixing the rotor 1 and pushing in the shaft 16, and further fixing the shell 18 and pushing up the rotor 1 by applying pressure in a direction away from the shell 18. Depending on the method.

  Then, the rotor 1 separated from the rotor assembly 15 is demagnetized. This demagnetization treatment can be performed even at room temperature demagnetization (electrical demagnetization), but thermal demagnetization that can remove the resin and does not require post-treatment is preferable. Then, after the lapse of a specified time, the rotor 1 is taken out from the heating furnace, conveyed to the cooling chamber, and cooled.

  Then, the cooled rotor 1 is attached to the jig 4. At this time, as shown in FIGS. 3A and 3B, the first laser sensor is arranged in the radial direction of the rotor 1 with a non-circular pressing plate 2b provided on the surface 2a of the pressing plate 2 interposed therebetween. The second laser sensor 6b is arranged in the radial direction of the rotor 1 so that the light emitting portion 6a and the light receiving portion 6a face each other, and the surface 2a of the holding plate 2 other than the non-circular holding plate 2b is sandwiched therebetween. The rotor 1 is arranged and fixed on the jig 4 so that the light emitting part and the light receiving part are opposed to each other.

  At this time, the jig 4 is attached to each of the two racks in which the gripping member 4a for gripping and fixing the outer peripheral surface of the rotor 1 is engaged with each other in the radial direction of one pinion gear. Therefore, when the holding member 4 a on one side moves toward the outer peripheral surface of the rotor 1, the holding member 4 a on the other side also moves toward the outer peripheral surface of the rotor 1 at the same time. Thereby, when fixing the rotor 1, the rotor 1 can always be arrange | positioned and fixed to the center part of the jig | tool 4. FIG.

  Next, by operating the operation panel 12, the rotor 1 fixed to the jig 4 is transported along the transport rail 13 below the image position detection device 5 and the rotor height detection device 6. Then, the surface 2a of the pressing plate 2 is irradiated by an illuminating device 5b provided in the image position detecting device 5 and photographed by the camera 5a to detect the position of the crimped portion of the pin 3, and its position information Is transmitted to the control device.

  Further, the rotor height detection device 6 moves in the axial direction of the rotor 1 and descends toward the surface 2a of the pressing plate 2, so that a support member is formed as shown in FIGS. 3 (a) and 3 (b). The first laser sensor 6a and the second laser sensor 6b, which are arranged to face each other in the radial direction of the rotor 1 provided in 6c, descend toward the pressing plate 2. Thereby, first, the laser beam transmitted between the light emitting part and the light receiving part of the first laser sensor 6a is blocked by reaching the surface of the non-circular pressing plate 2b, and the position where the laser beam is blocked is non- It is detected as the height position of the circular presser plate 2b and transmitted to the control device as height information. Furthermore, the laser beam transmitted between the light emitting part and the light receiving part of the second laser sensor 6b reaches the surface 2a of the pressing plate 2 by being lowered, so that the laser beam is blocked, and the pressing plate 2 The height position of the surface 2a is detected and transmitted to the control device as height information.

  And the jig | tool 4 is conveyed along the conveyance rail 13 to the cutting device 7 which is the next process. In this cutting device 7, the caulking portion side of the four pins 3 fixing the pressing plate 2 is cut by the drill 7 a. At this time, the position of the pin 3 is determined by the control device based on the position information detected by the image position detection device 5. Then, the cutting depth from the surface of the non-circular pressing plate 2b to the inside of the end of the rotor 1 and the cutting depth from the surface 2a of the pressing plate 2 to the inside of the end of the rotor 1 are input to the operation panel 12. Thus, based on the height information detected by the rotor height detection device 6, the caulking portion side of each pin 3 is cut by the drill 7a.

  At this time, each cutting depth can be specified without measuring the thickness dimension of the pressing plate 2 and the thickness dimension of the non-circular pressing plate 2b because the rotor 1 is a general-purpose one. Then, the thickness of the pressing plate and the thickness of the non-circular pressing plate 2b and the pressing plate plus a depth of 2 to 10 mm are input to the operation panel 12.

  Then, the rotor 1 cut to the depth of 2 to 10 mm at the end of the rotor 1 from the swaged portion side of the pin 3 that has fixed the presser plate 2 remains to the handling device 11 while being fixed to the jig 4. , Transported along the transport rail 13. In this handling device 11, the gripping member 11 a descends in the axial direction of the rotor 1 to grip the outer peripheral surface of the rotor 1, and each gripping member 4 a of the jig 4 is separated from the outer peripheral surface of the rotor 1. Then, the gripping member 11a is raised in the axial direction, and the gripping member 11a is horizontally moved and attached to the reversing jig 44 provided on the reversing transport rail 13a. At this time, since the reversing jig 44 is provided with the rod with the spring interposed therein, the rod is inserted into the hole 1a at the center of the rotor 1 and the gripping member 44a allows the rotor 1 to Hold the outer peripheral surface and fix it.

Then, the reversing jig 44 is rotated by 90 ° by the reversing device 10 provided on the reversing transport rail 13a so that the holding plate 2 side of the rotor 1 faces the detaching device 8 side. The rotated reversing jig 44 is transported to the removal position along the reversing transport rail 13a.

Note that the presser plate 2 and the non-circular presser plate 2b may be detached from the rotor 1 due to an impact when the reversing jig 44 rotates 90 ° or due to the weight of the presser plate 2 in some cases. In that case, the presser plate 2 and the non-circular presser plate 2b are recovered. However, when the pressing plate 2 cannot be removed from the rotor 1 due to the impact of rotation , the reversing jig 44 is transported to the removal position along the reversing transport rail 13a.

  Then, the rotor 1 conveyed to the detaching device 8 descends in the radial direction of the rotor 1 while the brush member 9 rotates, so that the brush member 9 comes into contact with the pressing plate 2 and the pressing plate 9 is Come off. At this time, the brush member 9 is brought into contact with only the presser plate 2, but the height of the rotor 1 and the thickness dimension of the presser plate 2 differ depending on the type of the rotor 1. Based on the height information detected by the detection device 6, the end of the rotor 1 is moved in the axial direction of the rotor 1 to the removal position, and the brush member 9 can reliably catch only the holding plate 2.

  Then, the rotor 1 from which the presser plate 2 has been detached moves the gripping member 44 a of the reversing jig 44 away from the outer peripheral surface of the rotor 1, so that the reversing treatment is performed by the bias of the spring interposed in the rod. It is recovered by being removed from the tool 44 and sent to the next process, where the rare earth magnet material 20 in the magnet through-hole 1c is taken out and recycled as a valuable rare earth magnet material. The holding plate 2 removed by the brush member 9 is recovered.

According to the rotor disassembling apparatus 21 according to the above-described embodiment, the position of the crimped portion of the pin 3 on the surface 2a of the pressing plate 2 is detected by the image position detecting device 5 and provided on the surface 2a of the pressing plate 2. The height of the non-circular pressing plate 2b and the surface 2a of the pressing plate 2 is detected by the rotor height detecting device 6, and the position information detected by the image position detecting device 5 by the cutting device 7 and the rotor height detecting device 6 are used. Based on the detected height information, in order to calculate and cut the cutting depth from the surface of the non-circular pressing plate 2b and the surface 2a of the pressing plate 2 to the inside of the end of the rotor 1, the surface 2a of the pressing plate 2 Even if the pin 3 is disposed on the non-circular pressing plate 2b and the surface 2a of the pressing plate 2, the inner side of the end of the rotor 1 from the crimped portion of the pin 3 can be obtained by an appropriate cutting depth. Cut off To, the rotor 1 is rotated by the reversing device 10, it can be removed pressing plate 2 easily. Thereby, the breakage and wear frequency of the cutting tool due to the measurement error of the cutting depth can be reduced, and the working efficiency can be improved and the running cost can be reduced.

The detection of the rotor 1 when the rotate 90 °, without departing the pressing plate 2, when removing the pressing plate 2 by removable device 8, after the rotor 1 rotate 90 °, the rotor height detector 6 Based on the height information, the end of the rotor 1 cut by the cutting device 7 is moved in the axial direction of the rotor 1 to the removal position, and the brush member 9 is further moved in the radial direction of the rotor 1, Since the presser plate 2 is removed, the brush member 9 can be appropriately brought into contact with the presser plate 2 without measuring the position of the presser plate 2 again. As a result, it is possible to prevent the pressing plate 2 from being mistakenly removed and the brush member 9 from being damaged, to improve workability, and to reduce maintenance costs.

  In the embodiment described above, only the case where four pins 3 for fixing the pressing plate 2 to the rotor 1 are used has been described. However, the present invention is not limited to this. 5 makes it possible to detect the position.

  It can be used for a rotor separated from a motor member used for a compressor or the like.

1 Rotor 2 Holding plate 2a Surface 2b Non-circular holding plate 3 Pin (bar-shaped fixing member)
DESCRIPTION OF SYMBOLS 4 Jig 5 Image position detection apparatus 6 Rotor height detection apparatus 6a 1st laser sensor 6b 2nd laser sensor 7 Cutting apparatus 8 Removal apparatus 9 Brush member 9a Base 9b Brush 10 Inversion apparatus 11 Handling apparatus 20 Rare earth magnet material 21 Rotor Disassembly equipment

Claims (1)

As a pre-process for recovering the rare earth magnet material from the rotor in which the rare earth magnet material is housed, the rotor and the through holes provided in the axial direction of the rotor are disposed at both ends of the rotor. A rotor disassembling device for disassembling a pressing plate fixed by a head of a stick-shaped fixing member to be inserted,
A jig for fixing the rotor, an image position detecting device for detecting the position of the head of the stick-shaped fixing member on the surface of the pressing plate by an image, and a pair of first units including a light emitting unit and a light receiving unit A light receiving portion and a light emitting portion of a pair of second laser sensors each having a laser sensor, a light emitting portion, and a light receiving portion are arranged to face each other in the radial direction of the rotor, and the first laser sensor and the second laser sensor are arranged. Is moved in the axial direction of the rotor to detect the height based on the position where the laser beam of each laser sensor is blocked, the position information detected by the image position detecting device, and the rotor height A cutting device for cutting the rod-shaped fixing member by calculating a cutting depth from the surface of the pressing plate to the inner side of the end of the rotor based on the height information detected by the height detecting device; The rotor after rotate 90 °, is moved in the axial direction of the rotor to a position remove the end on the side that is cut by the cutting device of the rotor based on the height information detected by the rotor height detection device A rotor disassembling apparatus comprising: a reversing device; and a removing device that moves a brush member in a radial direction of the rotor at the removing position to remove the pressing plate.

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