JP5764441B2 - Motor disassembly method and assembly method - Google Patents

Description

The present invention relates to a motor disassembling method for pulling out a rotor from a stator when servicing a motor used in a factory or a plant, and a motor assembling method for inserting a rotor into a stator after maintenance of the stator and the rotor is completed.

In Patent Document 1, when a stator (stator) is inserted into a rotor (rotor) having a permanent magnet in the outer peripheral region, the gap length between the rotor and the stator can be set with high accuracy and can be assembled efficiently. A possible assembly device is disclosed. Patent Document 2 discloses an assembling apparatus that prevents the rotor from coming into contact with the stator and allows smooth and easy assembly when the rotor is assembled into the stator after the permanent magnets of the stator are magnetized. Yes. Further, Patent Document 3 discloses a motor assembling apparatus that can perform magnetization of a permanent magnet fixed to an inner peripheral surface of a stator and assembly of a rotor as a series of operations in the same apparatus with good workability. .
Furthermore, Patent Document 4 discloses a rotor insertion method and apparatus that can reliably prevent the rotor and the stator from being attracted when assembling a motor in which either one of the rotor and the stator is provided with a permanent magnet. .

Japanese Patent Laid-Open No. 10-66312 JP 2001-251817 A JP 2003-235216 A JP 2005-57915 A

However, the devices disclosed in Patent Documents 1 to 3 are dedicated devices used when inserting a rotor into a stator for a motor having a fixed shape. For this reason, there is a problem that the various types of motors used in factories cannot be applied to the assembly work in which the rotor is inserted into the stator after the motor has been disassembled.
Further, the device disclosed in Patent Document 4 can be diverted to the work of pulling out the rotor from the stator. However, since the device of Patent Document 4 is intended for a motor having a predetermined shape, it is a structural member. There is a problem that it is necessary to replace the (screw shaft) with a motor to be maintained.

The present invention has been made in view of such circumstances, and when maintaining a wide variety of types of motors used in factories or plants, the rotor is pulled from the stator while reliably maintaining the gap between the stator and the rotor. It is an object of the present invention to provide a motor assembling method for inserting a rotor into a stator while reliably maintaining a gap between the stator and the rotor after maintenance of the motor to be pulled out and maintenance of the stator and the rotor are completed.

The motor disassembling method according to the first aspect of the present invention includes a chuck that is provided on one side of a machine base via a headstock, and that is provided on the machine base so as to face the chuck. A method of disassembling a biaxial motor using a permanent magnet as a rotor, using a lathe having a tailstock and a carriage that can move along the machine base,
While fixing the shaft protruding from one side of the motor to the chuck, the shaft protruding from the other side of the motor is pressed by a core pushing rod provided on the core pushing stand, and in this state, the motor is A first step of fixing to a mounting table provided on the carriage;
A second step of removing brackets on one side and the other side provided with bearings for rotatably supporting the shaft;
The bracket on the other side is moved from the shaft protruding from the other side of the motor to the core pushing rod side, and the carriage is further moved to the other side, whereby the stator and outer member (frame ( A third step of separating the yoke) or the yoke) from the rotor;
A fourth step of removing the stator and the outer member of the motor with the core pushing rod retracted to the other side and holding the rotor on the chuck ;
The third step includes a step 3-1 for moving the other side bracket to the core pushing rod side, and the shaft protruding from the other side, the carriage or the machine on which the carriage is mounted. A step 3-2 for temporarily supporting by a height-adjustable supporting means placed on a table, and a step 3-3 for retracting the core pushing rod and removing the other side bracket from the core pushing rod. And, with the core push rod pressed against the shaft on the other side again, the rotor and the outer member are moved to the core push rod side while the rotor is supported by the chuck and the core push rod. And a third to fourth step of separating from the rotor .
Note that, based on the machine base, the direction in which the headstock is located is “one side”, and the direction in which the tailstock is located is “other side” (the same applies to the motor assembly method according to the second invention).

A motor assembling method according to a second aspect of the present invention that meets the above-mentioned object is provided on one side of a machine base via a main spindle and sandwiches an object, and is provided on the machine base opposite to the chuck. A method of assembling a double-shaft motor in which a rotor is separated from a stator, using a lathe having a tailstock and a carriage that can move along the machine base,
While mounting a bracket on one side provided with a bearing that rotatably supports the shaft on one side of the rotor on one side of the temporary motor shaft having the same shape as the shaft of the rotor, The bracket on the other side provided with a bearing that rotatably supports the shaft on the other side is rotatably mounted on the core pushing rod provided on the core pushing table, and is mounted on the mounting table provided on the carriage. A first step of pressing the other side of the temporary motor shaft through an axial direction through the stator held in an outer member (also referred to as a frame (yoke) or yoke) of the motor;
The carriage is moved toward the chuck, the temporary motor shaft supported by the chuck and the core pushing rod is inserted into the stator held in the outer member, and the both sides of the outer member are A second step of fixing the outer member to the mounting table in a state where the brackets on one side and the other side are respectively attached;
The one side bracket and the other side bracket are removed from the outer member, the other side bracket is moved from the temporary motor shaft to the core pushing rod side, and the carriage is further moved to the other side. A third step of separating the stator of the motor and the outer member from the temporary motor shaft;
The temporary motor shaft is removed from the chuck together with the one-side bracket, the one-side bracket is mounted on the shaft on one side of the rotor and fixed to the chuck, and the core penetrates the stator in the axial direction. A fourth step of moving the push rod to one side and pressing the shaft on the other side of the rotor;
A fifth step of attaching the bracket on the one side and the bracket on the other side to the outer member holding the stator after moving the carriage to one side and inserting the rotor into the stator.

In the motor assembling method according to the second aspect of the invention, the fourth step includes a step 4-1 for removing the temporary motor shaft from the chuck together with the bracket on the one side, and the shaft on one side of the rotor. It is possible to adjust the height by mounting the bracket on one side, inserting the shaft into the chuck, and placing the shaft on the other side of the rotor on the carriage or the machine base on which the carriage is placed. While temporarily supporting with the support means, after adjusting the rotor to a horizontal state, after fixing the shaft on one side of the rotor with the chuck, 4-2 step, removing the support means, the stator in the axial direction And a fourth to third step of pressing the shaft on the other side of the rotor by moving the penetrating rod passing therethrough to the chuck side.

In the motor disassembling method according to the first aspect of the present invention, the rotor shaft is fixed by a lathe chuck and the shaft is supported by a core push rod attached to the core push stand while the stator fixed to the lathe carriage is held. Since the outer member is moved toward the core support, the gap between the stator and the rotor can be reliably maintained, and the rotor and the stator are attracted to each other when the rotor and the stator are separated (the rotor is pulled out from the stator). Can be prevented. As a result, the motor can be safely disassembled without damaging the windings, the stator core, and the rotor core.

In the decomposition method of a motor according to the first invention, in the third step, the shaft protruding from the other side, capable of height adjustment of the carriage or carriage is mounted on to the machine base, which rests support While temporarily supporting by means, the core pushing rod is retracted and the other bracket is removed from the core pushing rod, so that shaft misalignment can be prevented. Thereby, when separating a stator from a rotor, it can prevent that a rotor and a stator adsorb | suck.

In the motor assembling method according to the second aspect of the invention, the rotor shaft is fixed by a lathe chuck, and the stator is fixed to the lathe carriage so that the axial position of the rotor coincides with the axial position of the rotor via an outer member. The carriage is moved to the chuck side while the shaft is pressed by the core pushing rod that is attached to the core pushing base and passes through the stator, so that the gap between the stator and the rotor can be reliably maintained. When inserting the rotor into the stator, the rotor and the stator can be prevented from being adsorbed. As a result, the motor can be safely disassembled without damaging the windings, the stator core, and the rotor core.

In the motor assembling method according to the second invention, in the fourth step, the shaft on one side of the rotor is inserted into the chuck, and the shaft on the other side is placed on the carriage or the machine table on which the carriage is placed. When temporarily supporting by the support means capable of adjusting the height, the rotor can be easily adjusted so as to be in a horizontal state. As a result, the axial position of the rotor can be matched with the axial position of the stator fixed to the carriage via the outer member.

(A), (B) is explanatory drawing of the lathe used with the decomposition | disassembly method of the motor based on the 1st Embodiment of this invention. (A) is explanatory drawing of the 1st process in the decomposition | disassembly method of the motor, (B) is explanatory drawing of the motor fixed to the mounting base. (A), (B) is explanatory drawing of a 2nd process. (A) is explanatory drawing of a 3rd-1 process, (B) is explanatory drawing of a 3-2 process and a 3-3 process, (C) is explanatory drawing of a support means. (A) is the front part of the 3-4 process, (B) is explanatory drawing of the back part of the 3-4 process. It is explanatory drawing of the front | former stage part of a 4th process. (A), (B) is explanatory drawing of the front | former stage part of the 1st process in the assembly method of the motor which concerns on the 2nd Embodiment of this invention. (A), (B) is explanatory drawing of the back | latter stage part of a 1st process. (A) is explanatory drawing of a 2nd process, (B) is explanatory drawing of the outer side member fixed to the mounting base. (A) is a front part of the third step, and (B) is an explanatory view of a middle part of the third step. It is explanatory drawing of the back | latter stage part of a 3rd process. (A) is explanatory drawing of a 4-1 process, (B) is explanatory drawing of a 4-2 process. It is explanatory drawing of a 4-3 process. (A) is explanatory drawing of a 5th process, (B) is explanatory drawing of the method of taking out the motor which assembly completed.

Next, embodiments of the present invention will be described with reference to the accompanying drawings for understanding of the present invention.
As shown in FIG. 1A, a lathe 10 used in the motor disassembling method according to the first embodiment of the present invention and the motor assembling method according to the second embodiment of the present invention A chuck 15 that holds a shaft 14 (see FIG. 2) that is provided on one side of a spindle 11 through a headstock 12 and projects from one side of a biaxial motor 13 that is an object (see FIG. 2). And the core support 16 provided on the machine base 11 and the horizontal direction along the machine base 11 (for example, one side of the machine base 11 on which the chuck 15 is present is the left side, and the core support 16 The other side of the machine base 11 on the right side is the right side).

As shown in FIG. 1B, the carriage 17 is provided with a lower plate material 18 placed in contact with the carriage 17 and support members 19 provided on both front and rear sides of the lower plate material 18. A mounting table 21 having an upper plate member 20 arranged in parallel above the lower plate member 18 is fixed via a latching member 22. Here, the latching member 22 is U-shaped in cross-sectional view, and the front side of one projecting portion 23 facing the latching member 22 is in the front-rear direction (perpendicular to the left-right direction) on the left and right sides of the carriage 17. The other protrusion 25 is inserted into the space formed between the upper and lower plate members 20, 18 and penetrates the protrusion 25 in the thickness direction. The tip of the bolt 26 presses the upper surface of the lower plate member 18. With such a configuration, the position of the mounting table 21 on the carriage 17 can be adjusted in the front-rear direction, and the lower plate material 18 of the mounting table 21 positioned in the front-rear direction is placed above the carriage 17. The mounting table 21 can be fixed to the carriage 17 by being pressed.

Next, the motor disassembling method according to the first embodiment of the present invention will be described.
First, as shown in FIGS. 1A and 1B, the mounting table 21 is fixed to the carriage 17 of the lathe 10 using the latch member 22. Then, the core pushing rod 27 is fixed to the core pushing stand 16. Here, the core pressing rod 27 has a core pressing shaft 28 and a core pressing tip portion 29 attached to the tip of the core pressing shaft 28. When a long core pushing rod is required, an extension core pushing shaft (not shown) is arranged between the core pushing shaft 28 and the core pushing tip 29.

Next, as shown in FIGS. 2A and 2B, the motor 13 to be disassembled is placed on the placing table 21 fixed to the carriage 17, and the motor 13 placed on the placing table 21 by the chuck 15. While fixing one side of the shaft 14 protruding from one side (chuck 15 side), the other side of the shaft 14 protruding from the other side of the motor 13 (core pressing table 16 side) can be attached to the core pressing table 16. The core pushing rod 27 is pressed by the tip portion (core pushing tip portion 29) (the shaft pushing tip portion 29 is fitted into a core hole (not shown) formed in the other end portion of the shaft 14 to support the shaft 14).

As a result, the shaft 14 projecting from both sides of the motor 13 is supported by the chuck 15 and the core pushing rod 27, respectively. The central axis of the chuck 15, the central axis of the shaft 14, and the central axis of the core pushing rod 27 are Line up on a straight line. As a result, since the positioning of the outer member 31 of the motor 13 with respect to the mounting table 21 is performed, the outer member 31 is fixed to the mounting table 21 via a fastening member (not shown). Here, as shown in FIG. 2, when a gap is formed between the outer member 31 and the upper plate member 20 of the mounting table 21, a gap filling member 30 (for example, a copper thin plate) is inserted into the gap. The outer member 31 is not inclined when it is fixed to the mounting table 21 (the first step).

Subsequently, as shown in FIG. 3A, in the motor 13 in a state where the outer member 31 is fixed to the mounting table 21, a bearing (not shown) that rotatably supports one side and the other side of the shaft 14 is provided. The connection between the bracket 32 on one side and the bracket 33 on the other side provided with the outer member 31 is released. 3B, the one side bracket 32 is moved to the chuck 15 side of the shaft 14, the other side bracket 33 is moved to the core pushing rod 27 side of the shaft 14, and one side and The brackets 32 and 33 on the other side are removed (the second step).

In a state where the one side and the other side brackets 32 and 33 are removed from the outer member 31, the other side bracket 33 is moved from the shaft 14 to the core pushing rod 27 side as shown in FIG. Step 3-1). Then, as shown in FIG. 4B, the shaft 14 protruding from the other side is temporarily supported by the support means 34 that can be adjusted in height and is placed on the machine base 11 on which the carriage 17 is placed. (Step 3-2), the core pushing rod 27 is moved backward, and the other side bracket 33 moved to the side of the core pushing rod 27 is removed from between the shaft 14 and the core pushing rod 27 and removed (first step). 3-3 step). Since the shaft 14 is temporarily supported by the support means 34, the shaft 14 is prevented from being displaced (the central axis of the chuck 15, the central axis of the shaft 14, and the central axis of the core pushing rod 27 are aligned. State).

Here, as shown in FIG. 4C, the support means 34 includes a fixed base 35 attached to the machine base 11, and an elevating mechanism 37 that is provided on the fixed base 35 and moves up and down a receiving base 36 that supports the shaft 14. And a pressing member 38 that is attached to the cradle 36 and presses and fixes the shaft 14 supported by the cradle 36 from above. The elevating mechanism 37 includes a V-shaped lower hinge portion 39 provided on the upper side of the fixed base 35, an inverted V-shaped upper hinge portion 40 provided on the lower side of the receiving base 36, and upper, lower And male screw members 43 for connecting pin connection portions 41 and 42 on both sides of the hinge portions 40 and 39. With this configuration, the height position of the cradle 36 can be changed by operating the male screw member 43 and changing the crossing angle of the upper and lower hinge portions 40 and 39. 36 can support the shaft 14 from below.

After removing the bracket 33 on the other side, the core pushing rod 27 is again pressed against the other side of the shaft 14 as shown in FIG. 5B, the carriage 17 is moved to the other side while the rotor 44 using the permanent magnet is supported by the chuck 15 and the core pushing rod 27 via the shaft 14, and the motor 13 is moved. The stator 45 and the outer member 31 (the stator 45 held in the outer member 31) are moved to the core pushing rod 27 side (step 3-4).
As a result, the stator 45 and the outer member 31 of the motor 13 are separated from the rotor 44 (the third step).

After separating the stator 45 and the outer member 31 of the motor 13 from the rotor 44, the core push rod 27 is retracted to the other side and the rotor 13 is held by the chuck 15 as shown in FIG. The outer member 31 holding the stator 45 is removed from the mounting table 21 (the fourth step).
And after removing the outer member 31 from the mounting base 21, the rotor 44 is removed from the chuck | zipper 15 in the state which supported the rotor 44 with the lifting tool which is not shown in figure.

Next, a method for assembling the motor according to the second embodiment of the present invention will be described.
First, as shown in FIG. 7A, the mounting table 21 is fixed to the carriage 17 of the lathe 10 using the latch member 22. Then, the core pushing rod 27 is fixed to the core pushing stand 16. When a long core pushing rod is required, an extension core pushing shaft (not shown) is arranged between the core pushing shaft 28 and the core pushing tip 29.
Then, as shown in FIG. 7B, a temporary motor shaft having the same shape as the shaft 14 attached to the rotor 44 (see FIG. 12B) of the motor 13 to be assembled (see FIG. 14B). One side of 46 is fixed to the chuck 15. Here, on one side of the temporary motor shaft 46, a bracket 32 on one side provided with a bearing (not shown) that rotatably supports the shaft 14 protruding from one side of the rotor 44 is installed. Further, the other side bracket 33 provided with a bearing (not shown) for rotatably supporting the shaft 14 protruding from the other side of the rotor 44 is provided on the front side of the core pushing rod 27 (FIG. 8 ( A)).

Next, as shown in FIG. 8A, the outer member 31 holding the stator 45 of the motor 13 from which the rotor 44 is separated is placed on the mounting table 21 fixed to the carriage 17. Then, as shown in FIG. 8 (B), the core pushing rod 27 attached to the core pushing stand 16 is pushed out to the chuck 15 side, and the inside of the stator 45 held by the outer member 31 is penetrated in the axial direction to push the core pushing. The core pushing tip 29 of the rod 27 is inserted into a core hole (not shown) formed in the other end of the temporary motor shaft 46, and the other side of the temporary motor shaft 46 (core pushing table 16 is covered with the core pushing rod 27. Side). When pushing out the core pushing rod 27 toward the chuck 15, the other side bracket 33 moves to the core pushing stand 16 side of the core pushing rod 27 (the first step).

As shown in FIG. 9A, the carriage 17 is moved toward the chuck 15, and the temporary motor shaft 46 supported by the chuck 15 and the core pushing rod 27 is placed in the stator 45 held in the outer member 31. The outer member 31 is fixed to the mounting table 21 with the one and the other side brackets 32 and 33 being attached to both sides of the outer member 31. As a result, the outer member 31 to which the temporary motor shaft 46 is attached is supported by the chuck 15 and the core pushing rod 27 via the temporary motor shaft 46, and is held by the central shaft and the outer member 31 of the chuck 15. The center axis of the stator 45 and the center axis of the core pushing rod 27 are aligned on a straight line. As a result, positioning of the outer member 31 with respect to the mounting table 21 is performed, so that the outer member 31 is fixed to the mounting table 21 via a fastening member (not shown). Here, as shown in FIG. 9B, when a gap is formed between the outer member 31 and the upper plate member 20 of the mounting table 21, the gap filling member 30 is inserted into the gap, and the outer member 31. Is prevented from inclining when it is fixed to the mounting table 21 (the second step).

Subsequently, as shown in FIG. 10 (A), the bracket 32 on one side and the bracket 33 on the other side are removed from the outer member 31, and the bracket 33 on the other side is removed from the temporary motor as shown in FIG. 10 (B). The shaft 46 is moved to the core pushing rod 27 side. Then, as shown in FIG. 11, the stator 45 and the outer member 31 of the motor 13 are separated from the temporary motor shaft 46 by moving the carriage 17 to the other side (core pusher 16 side) (the third is described above). Process).

As shown in FIG. 12A, the temporary motor shaft 46 is removed from the chuck 15 together with the bracket 32 on one side (step 4-1). Then, as shown in FIG. 12B, the shaft 14 protruding from one side of the rotor 44 is covered with a bracket 32 on one side, the shaft 14 is inserted into the chuck 15, and the shaft protruding from the other side of the rotor 44. The shaft 14 that protrudes from one side of the rotor 44 after the rotor 44 is adjusted to a horizontal state while temporarily supporting by the support means 34 capable of adjusting the height placed on the machine base 11 on which the carriage 17 is placed. Is fixed by the chuck 15 (step 4-2). Next, as shown in FIG. 13, the support means 34 is removed from the machine base 11, and the core pusher that penetrates the stator 45 held in the outer member 31 fixed to the mounting table 21 fixed to the carriage 17 in the axial direction. The rod 27 is moved to the chuck 15 side to press the shaft 14 protruding from the other side of the rotor 44 (step 4-3).

Since the shaft 14 on one side of the rotor 44 is inserted into the chuck 15, and the shaft 14 on the other side is temporarily supported by the support means 34 placed on the machine base 11, the rotor 44 is easily adjusted to be in a horizontal state. be able to. Here, since the central axis of the chuck 15 and the central axis of the stator 45 fixed to the carriage 17 via the outer member 31 and the central axis of the core pushing rod 27 are in a straight line, the rotor 44 is kept in a horizontal state. When fixed to the chuck 15, the central axis of the rotor 44 (shaft 14) coincides with the central axis of the chuck 15. As a result, the central axis of the rotor 44 and the central axis of the stator 45 fixed to the carriage 17 via the outer member 31 can exist on a straight line.

Subsequently, as shown in FIG. 14A, after the carriage 17 is moved to one side and the rotor 44 fixed to the chuck 15 is inserted into the stator 45 held by the outer member 31, The bracket 32 and the bracket 33 on the other side are respectively attached to the outer member 31. Thereby, the assembly of the motor 13 is completed (fifth step). Here, since the center axis of the rotor 44 and the center axis of the stator 45 fixed to the carriage 17 via the outer member 31 are in a straight line, the stator 17 is moved when the carriage 17 is moved to the chuck 15 side. The gap between the rotor 45 and the rotor 44 can be reliably maintained, and the rotor 44 and the stator 45 can be prevented from being adsorbed when the rotor 44 is inserted into the stator 45. As a result, the motor 13 can be safely assembled without damaging the windings, the stator core, and the rotor core.

When the assembled motor 13 is taken out, as shown in FIG. 14B, the core pushing rod 27 pressing the shaft 14 protruding from the other side of the motor 13 (rotor 44) is retracted to the other side. Then, the chuck 15 holding the shaft 14 protruding from one side of the motor 13 (rotor 44) is released. Next, the carriage 17 is moved toward the other side, the shaft 14 on one side of the motor 13 inserted in the chuck 15 is pulled out, and the mounting table 21 attached to the carriage 17 and the outer member 31 are fixed. To release. Then, a suspension tool (not shown) is hooked on the shaft 14 projecting from both sides of the motor 13, and the motor 13 is lifted and moved to a predetermined place.

As described above, the present invention has been described with reference to the embodiment. However, the present invention is not limited to the configuration described in the above-described embodiment, and the matters described in the scope of claims. Other embodiments and modifications conceivable within the scope are also included.
Further, the present invention also includes a combination of components included in the present embodiment and other embodiments and modifications.
For example, in the motor disassembling method according to the first embodiment, in the third step, the shaft protruding from the other side is temporarily supported by the supporting means placed on the machine base, and the core pushing rod is moved backward. Remove the other side bracket from the core pushing rod, press the core pushing rod against the other shaft again, and push the outer member with the stator held in place with the rotor supported by the chuck and the core pushing rod. The stator is separated from the rotor by moving it to the rod side, but if the lathe is for long materials and the machine base is long, use a long core push rod to temporarily support it. The stator can be separated from the rotor by omitting each sub-step of supporting and removing the other side bracket from the core pushing rod and moving the carriage to the side pushing rod side together with the other side bracket. .
In the motor disassembling method according to the first embodiment and the motor assembling method according to the second embodiment, the supporting means is attached to the machine base on which the carriage is mounted. You may attach to.

10: Lathe, 11: Machine base, 12: Spindle base, 13: Motor, 14: Shaft, 15: Chuck, 16: Core push stand, 17: Reciprocating base, 18: Lower plate material, 19: Support material, 20: Upper Plate material, 21: mounting table, 22: latching member, 23: protrusion, 24: gutter, 25: protrusion, 26: bolt, 27: core push rod, 28: core push shaft, 29: core push tip, 30: Gap filling member, 31: Outer member, 32, 33: Bracket, 34: Support means, 35: Fixing base, 36: Receiving base, 37: Lifting mechanism, 38: Pressing member, 39: Lower hinge part, 40: Upper hinge part, 41, 42: Pin connection part, 43: Male screw member, 44: Rotor, 45: Stator, 46: Temporary motor shaft

Claims (3)

A chuck that is provided on one side of the machine base via a headstock, sandwiches an object, a core pushing table that is provided on the machine table so as to face the chuck, and a carriage that is movable along the machine table Using a lathe, and disassembling a double-axis motor using a permanent magnet as a rotor,
While fixing the shaft protruding from one side of the motor to the chuck, the shaft protruding from the other side of the motor is pressed by a core pushing rod provided on the core pushing stand, and in this state, the motor is A first step of fixing to a mounting table provided on the carriage;
A second step of removing brackets on one side and the other side provided with bearings for rotatably supporting the shaft;
The stator of the motor and the outer member are moved to the rotor by moving the bracket on the other side from the shaft protruding from the other side of the motor to the core pushing rod side and further moving the carriage to the other side. A third step of separating from
A fourth step of removing the stator and the outer member of the motor with the core pushing rod retracted to the other side and holding the rotor on the chuck ;
The third step includes a step 3-1 for moving the other side bracket to the core pushing rod side, and the shaft protruding from the other side, the carriage or the machine on which the carriage is mounted. A step 3-2 for temporarily supporting by a height-adjustable supporting means placed on a table, and a step 3-3 for retracting the core pushing rod and removing the other side bracket from the core pushing rod. And, with the core push rod pressed against the shaft on the other side again, the rotor and the outer member are moved to the core push rod side while the rotor is supported by the chuck and the core push rod. And a third to fourth step of separating the rotor from the rotor . A chuck that is provided on one side of the machine base via a headstock, sandwiches an object, a core pushing table that is provided on the machine table so as to face the chuck, and a carriage that is movable along the machine table Using a lathe to assemble a double-shaft motor in which the rotor is separated from the stator,
While mounting a bracket on one side provided with a bearing that rotatably supports the shaft on one side of the rotor on one side of the temporary motor shaft having the same shape as the shaft of the rotor, The bracket on the other side provided with a bearing that rotatably supports the shaft on the other side is rotatably mounted on the core pushing rod provided on the core pushing table, and is mounted on the mounting table provided on the carriage. A first step of pressing the other side of the temporary motor shaft through the stator held in the outer member of the motor in the axial direction;
The carriage is moved toward the chuck, the temporary motor shaft supported by the chuck and the core pushing rod is inserted into the stator held in the outer member, and the both sides of the outer member are A second step of fixing the outer member to the mounting table in a state where the brackets on one side and the other side are respectively attached;
The one side bracket and the other side bracket are removed from the outer member, the other side bracket is moved from the temporary motor shaft to the core pushing rod side, and the carriage is further moved to the other side. By the third step of separating the stator and the outer member of the motor from the temporary motor shaft,
The temporary motor shaft is removed from the chuck together with the one-side bracket, the one-side bracket is mounted on the shaft on one side of the rotor and fixed to the chuck, and the core penetrates the stator in the axial direction. A fourth step of moving the push rod to one side and pressing the shaft on the other side of the rotor;
And a fifth step of attaching the bracket on the one side and the bracket on the other side to the outer member holding the stator after moving the carriage to one side and inserting the rotor into the stator, respectively. Assembling method of motor characterized by this. 3. The motor assembling method according to claim 2 , wherein the fourth step includes a step 4-1 in which the temporary motor shaft is removed from the chuck together with the bracket on the one side, and the shaft on the one side of the rotor. The bracket on the side is sheathed, the shaft is inserted into the chuck, and the shaft on the other side of the rotor is mounted on the carriage or the machine base on which the carriage is mounted, and the height-adjustable support A step 4-2 for fixing the shaft on one side of the rotor with the chuck after adjusting the rotor to a horizontal state while temporarily supporting by the means, and removing the support means and penetrating the stator in the axial direction And a fourth to third step of pressing the shaft on the other side of the rotor by moving the core pushing rod to the chuck side.

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