JP2018182863A - Linear motor and method of manufacturing stator thereof - Google Patents

Abstract

An object of the present invention is to provide a retaining function only by inserting a lid into a pipe of a linear motor. A linear motor includes a magnet (1) and a spacer (2) housed inside a pipe (3), a stator (10) configured by arranging a lid (4) at an end of the pipe, and a stator (10) , A movable member 11 in which a coil is built in, and a retaining portion provided for an end of the stator 10 and preventing the magnet 1 and the spacer 1 from falling out of the pipe 3 A bending portion 3a as an elastic portion provided in the pipe 3 and a groove 4b as a securing concave portion provided on the lid 4 and engaged with the bending portion 3a. [Selected figure] Figure 1

Description

  The present invention relates to a method of manufacturing a linear motor and its stator, and in particular, a method of manufacturing a linear motor for linearly driving a mover installed outside a pipe using a magnet disposed in a pipe as a stator and a method of manufacturing the stator About.

  The conventional shaft type linear motor includes a stator having a plurality of magnets housed in a pipe-like member and holding the magnets at both ends, and a mover including a coil disposed so as to wrap the stator. The end portion of the pipe-like member is processed and configured, and it has a retaining mechanism for retaining the magnet (see, for example, Patent Document 1).

  In such a conventional method of manufacturing a linear motor stator, the pipe-like member is sheared at one or more locations to provide a lid retention mechanism by the repulsive force of the magnet. It was. In shear processing, a groove is formed on the side of the insertion member to be inserted into the pipe-like member, and a portion of the pipe-like member is cut at a position corresponding to the groove, and enters the groove of the insertion member. The insert is secured to the pipe-like member.

Japanese Patent Application Publication No. 2007-43780

  In the conventional manufacturing method, after the insertion member is inserted into the pipe-like member, it is necessary to carry out shearing, so equipment for shearing is required, and it is necessary to move the worker to the place where the equipment is located. Cost increases due to factors such as longer assembly time.

  The present invention has been made to solve the above problems, and a linear motor and a stator thereof in which the retaining mechanism is constituted only by inserting a lid into a pipe, and the assembling operation time can be shortened. The purpose is to obtain a manufacturing method of

  According to the present invention, there is provided a stator having a plurality of magnets and spacers housed inside a pipe-like member, and a lid disposed at the end of the pipe-like member, and being disposed outside the stator, A mover having a coil incorporated therein, and a retaining portion provided for an end of the stator and preventing the magnet and the spacer from falling out of the pipe-shaped member, the retaining portion Has an elastic portion provided on one of the pipe-like member and the lid, and a locking recess provided on the other of the one and the elastic portion is engaged with the other. It is a linear motor.

  According to the linear motor according to the present invention, in the stator assembly of the linear motor, it is possible to have the retaining function only by inserting the lid into the pipe, and the assembly operation time can be shortened.

It is sectional drawing for demonstrating the structure of the linear motor which concerns on Embodiment 1 of this invention, and the manufacturing method of the stator. It is a perspective view which shows the slit part and bending part of the pipe of the stator of the linear motor which concerns on Embodiment 1-3 of this invention. It is sectional drawing which shows the case where groove processing shapes of a lid | cover differ in the structure of the linear motor concerning Embodiment 1-3 of this invention, and the manufacturing method of the stator. It is sectional drawing for demonstrating the structure of the linear motor which concerns on Embodiment 2 of this invention, and the manufacturing method of the stator. It is sectional drawing for demonstrating the structure of the linear motor which concerns on Embodiment 3 of this invention, and the manufacturing method of the stator. It is sectional drawing for demonstrating the structure of the linear motor which concerns on Embodiment 4 of this invention, and the manufacturing method of the stator. It is sectional drawing which shows the structure of the linear motor which concerns on Embodiment 4 of this invention, and the structure of the plunger used for the stator.

Embodiment 1
FIGS. 1 and 2 are diagrams for explaining the configuration of a linear motor according to Embodiment 1 of the present invention and a method of manufacturing a stator thereof.

First, the configuration of the linear motor stator 10 will be described. As shown in FIG. 1, magnets 1 and spacers 2 are alternately arranged in the axial direction of the pipe 3, that is, in the longitudinal direction of the pipe 3, inside the pipe 3 formed of a cylindrical pipe-like member. ing. At this time, it is desirable that the spacers 2 be disposed at the outermost sides at both ends of the pipe 3. Further, it is desirable that the magnet 1 and the spacer 2 have a cylindrical shape having an outer diameter that matches the size of the inner diameter of the pipe 3 so as to be efficiently stored in the pipe 3. The pipe 3 is formed of nonmagnetic metal such as stainless steel or aluminum alloy. At both ends of the pipe 3, lids 4 having a retaining structure capable of withstanding the repulsive force of the repelling magnets 1 are disposed. A screw 5 for bringing the magnet 1 and the spacer 2 into close contact with each other is attached to a central portion of the lid 4.
The spacer 2 is formed of, for example, a magnetic metal such as rolled steel for general structure, and the lid 4 is formed of a nonmagnetic metal such as stainless steel or aluminum alloy.

  Thus, the stator 10 of the linear motor according to the first embodiment is composed of the pipe 3, the magnet 1, the spacer 2, the lid 4, and the screw 5. In the linear motor, the mover 11 is disposed outside the pipe 3 so as to wrap the pipe 3. In addition, a coil is incorporated in the mover 11. Then, the magnet 1 is used as a stator, and the mover 11 is linearly driven in the axial direction of the pipe 3.

  In the first embodiment, as shown in FIG. 1, the groove 4 b is formed by annularly grooving one portion of the lid 4. The groove 4 b may be formed on the entire outer periphery of the lid 4 or may be partially formed. In addition, although the cross-sectional shape of the groove | channel 4b of the lid | cover 4 is a rectangle in FIG. 1 for convenience, it does not restrict in that case, As shown in FIG. 3, another shape may be sufficient. In FIG. 3, the cross-sectional shape of the groove 4b is a right triangle.

  Further, as shown in FIG. 1 and FIG. 2, the lid 4 is provided with a handle portion 4 a. When the lid 4 is inserted into the end of the pipe 3, the handle portion 4a is disposed at a position outside the end of the pipe 3 as shown in FIG. As a result, when the lid 4 is desired to be removed from the pipe 3, the operator can hold and pull the handle portion 4a by hand, which facilitates the work at the time of disassembly or the like. However, the lid 4 does not necessarily have to be provided with the handle portion 4a. For example, as shown in FIG. 3, when the lid 4 is inserted into the end of the pipe 3, the entire lid 4 is inserted into the end of the pipe 3. May be arranged such that the lid 4 is not visible from the side of the pipe 3.

  Further, as shown in FIG. 2, in the pipe 3, U-shaped slit portions are provided at equal intervals at at least two or more places on the side surface of the pipe 3. Furthermore, the notch part of the side of the pipe 3 notched in order to form the said slit part is bend | folded toward the radial inside of the pipe 3, and comprises the bending part 3a. The bent portion 3a has elasticity (flexibility) and can be elastically deformed.

  In the first embodiment, the stator 10 of the linear motor is configured as described above.

  Next, a method of manufacturing the stator 10 of the linear motor according to the first embodiment will be described.

  First, the magnets 1 and the spacers 2 are alternately inserted into the pipe 3. Then, the operation is continued until the number of the inserted magnets 1 and the number of the spacers 2 reaches the preset number.

  The operation is repeated, and when the number of the inserted magnets 1 and the number of the spacers 2 reaches a preset number, the lids 4 are inserted to both ends of the pipe 3. After inserting the lids 4 at both ends, the screws 5 provided on the lids 4 are tightened to bring the magnet 1 and the spacer 2 into close contact. In addition, as shown in FIG.1 and FIG.2, the hole is provided in the center part of the lid | cover 4, and the inside of the said hole is a hollow part. Furthermore, the inner wall of the hollow portion is a screw, and the screw 5 is a male screw. Therefore, the screw 5 is rotated to move in the central cavity of the lid 4 in the axial direction of the pipe 3. That is, by tightening the screw 5, the screw 5 moves in the direction of the magnet 1 and the spacer 2 in the pipe 3, and conversely, by loosening the screw 5, the screw 5 becomes the magnet 1 and the spacer in the pipe 3. Move toward the direction away from 2. Further, since the head of the screw 5 is flat, the spacer 2 will not be damaged when contacting the spacer 2. As described above, in the first embodiment, since the screw 5 moves toward the magnet 1 and the spacer 2 in the lid 4, the magnet 1 and the spacer 2 are brought into close contact with each other. It is not necessary to form a hole for inserting the screw 5 into 2.

  Here, the operation when inserting the lid 4 into the pipe 3 will be described in detail. As the lid 4 is inserted from the end face of the pipe 3, the tip of the lid 4 starts to push the bending portion 3a. As a result, the bending portion 3a is pushed back outward in the radial direction of the pipe 3 by the elastic force of the bending portion 3a, and is pushed back to the same height position as the other portions of the pipe 3 other than the bending portion 3a. Further, when the tip of the lid 4 is inserted as it is, the groove 4b of the lid 4 passes the position of the bending portion 3a. At that time, the bent portion 3a fits in the groove 4b, and the state shown in FIG. 1 is obtained. In this state, as shown in FIG. 1, even if the lid 4 is pushed outward beyond the end of the pipe 3 by the repulsive force of the magnet 1, the bent portion 3a is caught on the inner wall of the groove 4b, and the lid 4 to prevent falling off. Further, in the state of FIG. 1, since the screw 5 brings the magnet 1 and the spacer 2 into close contact, the positions of the magnet 1 and the spacer 2 are stabilized, and the magnet 1 and the spacer 2 move in the pipe 3 There is no shaking.

  Thus, the method of manufacturing the stator of the linear motor according to the first embodiment is completed, and the stator of the linear motor is completed.

  As described above, in the manufacturing method according to the first embodiment, only by inserting the lid 4 into the pipe 3 after the insertion of the magnet 1 and the spacer 2, the retaining portion configured to automatically prevent the lid 4 from falling off is formed. The lid 4 can be prevented from coming off and the magnet 1 coming out of the pipe 3.

  As described above, in the first embodiment, after the lid 4 is inserted into the pipe 3, the bent portion 3 a of the pipe 3 enters the groove 4 b of the lid 4, so the bent portion 3 a is formed on the inner wall of the groove 4 b. By being caught, the lid 4 does not fall off the end of the pipe 3. Therefore, in the first embodiment, the groove 4 b of the lid 4 and the bent portion 3 a of the pipe 3 constitute a retaining portion for the lid 4 due to the repulsive force of the magnet 1.

  When the stator of the linear motor is to be disassembled, the lid 4 can be removed by spreading the bent portion 3a outward in the radial direction of the pipe 3 using a tool or the like. Therefore, by removing the magnet 1 and the spacer 2 from the pipe 3 after removing the lid 4 from the pipe 3, the stator of the linear motor can be easily disassembled, and sorting and discarding becomes easy.

  In the example of FIG. 2, the pipe 3 and the lid 4 are respectively formed in a round shape, but the shape is not limited to that case, and other shapes such as a rectangle or a polygon may be used. While being able to comprise a part, disassembly of a linear motor is also possible easily.

  Moreover, in Embodiment 1, although the example which provides the screw 5 in the hollow part of the center of the lid | cover 4 was demonstrated, the screw 5 does not necessarily need to provide. As shown in FIG. 1, by inserting the lid 4 at both ends of the pipe 3, the top of the lid 4 pushes the magnet 1 and the spacer 2 from both sides, so the magnet 1 and the spacer 2 adhere in the pipe 3 Therefore, the screw 5 can be omitted.

  As described above, in the linear motor according to the first embodiment, the plurality of magnets 1 and the spacer 2 are housed inside the pipe 3 of the pipe-like member, and the lid 4 is disposed at the end of the pipe 3 The stator 10, the mover 11 disposed outside the stator 10 and having a coil incorporated therein, and the end of the stator 10 are provided for the magnet 1 and the spacer 2 to drop out of the pipe 3 And a retaining part for preventing the Further, in the first embodiment, the retaining portion is composed of a bending portion 3a which is an elastic portion and a groove 4b which is a locking concave portion in which the elastic portion is engaged.

  In the first embodiment, as described above, only by inserting the lid 4 into the end of the pipe 3, the bending portion 3a is automatically engaged with and locked to the groove 4b. It is not necessary to perform any processing operation after inserting the lid 4 into the pipe 3 as in the shear processing. Therefore, since there is no need for a worker to move to a place at the time of assembly, the assembly operation can be performed quickly, and the assembly operation time can be shortened.

  In the first embodiment, in the linear motor according to the first embodiment, since the bent portion 3a of the pipe 3 is in the groove 4b of the lid 4, the bent portion 3a is caught on the inner wall of the groove 4b. Since the lid 4 does not fall off the end of the pipe 3, the magnet 1 and the spacer 2 do not fall out of the pipe 3. As a result, the repulsive force of the repulsive magnets 1 can be suppressed, and a linear motor performing stable operation can be obtained.

Second Embodiment
In the first embodiment, the lid 4 is disposed at both ends, but as shown in FIG. 4, the end of the pipe 3 on the open side using the pipe 3 whose one end is closed. Even in the configuration in which the lid 4 is provided only in the case, the same retention function as that in the first embodiment can be provided.

  In the second embodiment, as shown in FIG. 4, one end of the pipe 3 is open but the other end is closed. The said other end is comprised with the same material as the pipe 3, therefore the cross-sectional shape of the pipe 3 is a U-shape, as shown in FIG. Further, as in the first embodiment, a lid 4 is provided at the open end of the pipe 3. In the second embodiment, as in the first embodiment, in the second embodiment, the bent portion 3a of the pipe 3 which is an elastic portion and the groove 4b of the lid 4 which is a locking recess in which the elastic portion is engaged. And consists of The other configuration is the same as that of the first embodiment, and thus the description thereof is omitted here.

  A method of manufacturing the stator of the linear motor according to the second embodiment will be described.

  As in the first embodiment, first, the magnets 1 and the spacers 2 are alternately inserted into the pipe 3. Then, the operation is repeated until the number of the inserted magnets 1 and the number of the spacers 2 reaches the preset number.

  The operation is repeated, and when the number of the inserted magnets 1 and the number of the spacers 2 reaches a preset number, the lid 4 is inserted into the open end of the pipe 3.

  Thus, the method of manufacturing the stator of the linear motor according to the second embodiment is completed, and the stator of the linear motor is completed.

  As described above, also in the second embodiment, the same effect as the first embodiment can be obtained. Furthermore, in the second embodiment, since one end of the pipe 3 is closed, the number of lids 4 can be reduced, and the manufacturing cost can be suppressed.

Third Embodiment
In the first embodiment, the lids 4 are arranged at both ends. However, as shown in FIG. 5, the spacer 2 is prevented from being directly removed by the bent portion 3a of the slit as shown in FIG. Even with the configuration provided, the same retention function as that of the first embodiment can be provided.

  As shown in FIG. 5, in the third embodiment, a lid 4 is provided at one open end of the pipe 3. In the third embodiment, as in the first embodiment, in the third embodiment, the bent portion 3a of the pipe 3 which is the elastic portion and the groove 4b of the lid 4 which is the locking concave portion in which the elastic portion is engaged. And consists of Thereby, at one end of the pipe 3 where the lid 4 is disposed, the groove 4b of the lid 4 and the bent portion 3a are engaged to prevent the magnet 1 and the spacer 2 from falling off the pipe 3 ing.

  In the third embodiment, as shown in FIG. 5, the pipe 3 having the same configuration as that of the first embodiment is used. Therefore, as described in the first embodiment, the bent portions 3 a of the slit portions are bent inward in the radial direction of the pipe 3 at both ends of the pipe 3. At this time, as shown in FIG. 5, the lid 4 is disposed at one end of the pipe 3, but the lid 4 is not disposed at the other end. However, since the bent portions 3a are provided at both ends of the pipe 3, the spacer 2 and the bent portions 3a directly abut on the other end side where the lid 4 is not disposed. Therefore, when the first spacer 2 to be inserted first is inserted into the inside of the pipe 3, the spacer 2 abuts on the bent portion 3 a of the other end of the pipe 3 and the spacer 2 does not fall off the pipe 3 . As described above, in the third embodiment, at the other end of the pipe 3, the spacer 2 abuts on the bent portion 3 a so that the spacer 2 does not come off the pipe 3. The other configuration is the same as that of the first embodiment, and thus the description thereof is omitted here.

  As described above, in the third embodiment, the lid 4 is disposed only at one end of the pipe 3, and the bent portions 3 a are provided at both ends of the pipe 3. The bending portion 3a provided on the one end side of the pipe 3 is engaged with the groove 4b provided on the lid 4, and the bending portion 3a provided on the other end side which is the other end of the pipe 3 is One of the magnets 1 or the spacers 2 housed in the inside of the pipe 3 is disposed closest to the other end, that is, in FIG. Thereby, at one end of the pipe 3, the magnet 1 and the spacer 2 are attached to the outside of the pipe 3 at the other end of the pipe 3 by the engagement of the groove of the lid 4 and the bend 3a. Can be prevented from falling off. As a result, the repulsive force of the repulsive magnets 1 can be suppressed, and a linear motor performing stable operation can be obtained.

  A method of manufacturing a stator of a linear motor according to Embodiment 3 will be described.

  As in the first embodiment, first, the magnets 1 and the spacers 2 are alternately inserted into the pipe 3. Then, the operation is continued until the number of the inserted magnets 1 and the number of the spacers 2 reaches the preset number.

  Next, when the number of each of the inserted magnets 1 and the spacers 2 reaches a preset number, the lid 4 is inserted into one end of the pipe 3.

  Thus, the method of manufacturing the stator of the linear motor according to the third embodiment is completed, and the stator of the linear motor is completed.

  As described above, also in the third embodiment, the same effect as in the first embodiment can be obtained. Further, in the third embodiment, at the end of one side of the pipe 3, the spacer 2 is directly prevented from coming off at the bending portion 3a and the lid 4 is provided to the other, so the number of lids 4 is reduced. It is possible to reduce the production cost.

Fourth Embodiment
Even in the configuration using the plunger 6 as shown in FIG. 6 instead of the bending portion 3a of the slit shown in the first embodiment, it is possible to have the same retaining function as the first embodiment.

  In the fourth embodiment, as shown in FIG. 6, instead of the groove 4 b of the first embodiment, plunger insertion portions 4 c are provided at equal intervals at at least two or more places on the side surface of the lid 4. There is. The plunger insertion portion 4 c is a hole or a recess or a female screw provided in the lid 4, and the plunger 6 is inserted therein. In FIG. 6, the cross-sectional shape of the plunger insertion part 4c is rectangular.

  As shown in FIG. 6, the plunger 6 is inserted and fixed in the plunger insertion portion 4c. An enlarged view of the plunger 6 is shown in FIG. As shown in FIG. 7, the plunger 6 has an annular body 6c. The lower end of the main body 6c is closed to form a closed portion. On the other hand, the upper end of the main body 6c is an opening. The spring 6b is inserted in the internal cavity of the main body 6c. The lower end of the spring 6b is in contact with the lower end of the internal cavity of the main body 6c. In addition, a ball 6a is attached to the upper end of the spring 6b. Thus, the plunger 6 has the spring 6b inside and is equipped with the ball 6a at the head.

  Further, as shown in FIG. 6, in the pipe 3, circular holes 3 b are provided at equal intervals at at least two or more places on the side surface of the pipe 3 corresponding to the plunger insertion portion 4 c of the lid 4. There is. The round hole 3 b is a through hole penetrating the side surface of the pipe 3.

  In the fourth embodiment, lids 4 are provided at both ends of the pipe 3. In the fourth embodiment, the retaining portion is composed of the plunger 6 which is an elastic portion and the round hole 3b which is a locking recess. The fourth embodiment differs from the first to third embodiments in that the elastic portion is provided on the lid 4 side and the locking recess is provided on the pipe 3 side, and the retaining portion is the plunger 6 in the fourth embodiment. And a round hole 3b. The other configuration is the same as that of the first embodiment, and thus the description thereof is omitted here.

  Next, a method of manufacturing the stator of the linear motor according to the fourth embodiment will be described.

  First, the lid 4 is attached to one end of the pipe 3. At this time, the plunger 6 is inserted into the plunger insertion portion 4 c of the lid 4. Therefore, by inserting the lid 4 into one end of the pipe 3, the ball 6a at the top of the plunger 6 and the round hole 3b of the pipe 3 automatically engage.

  Thereafter, as in the first embodiment, the magnets 1 and the spacers 2 are alternately inserted into the pipe 3. Then, the operation is continued until the number of the inserted magnets 1 and the number of the spacers 2 reaches the preset number.

  Then, when the number of each of the inserted magnets 1 and the spacers 2 reaches the preset number, the lid 4 is inserted into the other end of the pipe 3. Also at this time, the plunger 6 is inserted into the plunger insertion portion 4c of the lid 4 in the same manner. Therefore, by inserting the lid 4 into one end of the pipe 3, the ball 6a at the top of the plunger 6 and the round hole 3b of the pipe 3 automatically engage.

  Here, the operation when inserting the lid 4 into the pipe 3 will be described in detail. When the lid 4 is inserted from the end face of the pipe 3, the ball 6a of the plunger 6 comes in contact with the end of the pipe 3 and the inner wall of the pipe 3. Therefore, the spring 6b is compressed by the elastic force. As a result, the position of the ball 6 a moves inward in the radial direction of the pipe 3, so the lid 4 is inserted into the pipe 3 while the head of the ball 6 a rubs against the inner wall of the pipe 3. Furthermore, when the lid 4 is inserted as it is, the ball 6 a of the plunger 6 reaches the position of the round hole 3 b of the pipe 3. At that point, due to the nature of the spring 6b, the spring 6b returns and returns to its original length. As a result, the ball 6a is accommodated in the round hole 3b, and the state shown in FIG. 6 is obtained. In this state, as shown in FIG. 6, even if the lid 4 is pushed outward beyond the end of the pipe 3 by the repulsive force of the magnet 1, the ball 6a of the plunger 6 is caught in the round hole 3b, Prevent the lid 4 from falling off. Further, in the state of FIG. 6, since the screw 5 brings the magnet 1 and the spacer 2 into close contact with each other as in the first embodiment, the positions of the magnet 1 and the spacer 2 become stable, 1 and the spacer 2 do not move or shake.

  As described above, the method of manufacturing the stator of the linear motor according to the fourth embodiment is completed, and the stator of the linear motor is completed.

  As described above, also in the fourth embodiment, the same effect as that of the first embodiment can be obtained. Furthermore, in the fourth embodiment, it is sufficient to form the round hole 3b by performing simple round hole processing on the pipe 3, and the work is simpler than the formation of the bending portion 3a, and the manufacturing cost is suppressed. It becomes possible.

  1 magnet, 2 spacer, 3 pipe, 3a bent portion, 3b round hole processing, 4 lid, 5 screw, 6 plunger, 6a ball, 6b spring.

According to the present invention, there is provided a stator having a plurality of magnets and spacers housed inside a pipe-like member, and a lid disposed at the end of the pipe-like member, and being disposed outside the stator, A mover having a coil incorporated therein, and a retaining portion provided for an end of the stator and preventing the magnet and the spacer from falling out of the pipe-shaped member, the retaining portion Has an elastic portion having elasticity , provided on any one of the pipe-like member and the lid, and a locking recess provided on the other with respect to the one and engaged with the elastic portion. It is a linear motor.

Claims (6)

A stator configured to store a plurality of magnets and spacers inside a pipe-like member, and to arrange a lid at an end of the pipe-like member;
A mover disposed outside the stator and having a coil embedded therein;
And a retaining portion provided at an end of the stator to prevent the magnet and the spacer from falling out of the pipe-like member.
The retaining portion is
An elastic portion provided on any one of the pipe-like member and the lid;
A locking recess provided on the other of the first and second elastic members;
Linear motor. The elastic portion is constituted by a bent portion in which a part of the pipe-like member is notched and bent to the inner diameter side of the pipe-like member;
The locking recess is formed on the lid and is formed of a groove engaged with the bent portion.
The linear motor according to claim 1. The pipe-like member is open only at one end,
The lid and the retaining portion are provided to the open end of the pipe-like member,
The linear motor according to claim 1. The lid and the retaining portion are disposed only at one end of the pipe-like member,
The other end of the pipe-like member has a second bent portion in which a part of the pipe-like member is notched and bent to the inner diameter side of the pipe-like member,
The second bent portion is in contact with one of the magnet and the spacer housed inside the pipe-like member, which is disposed closest to the other end.
The linear motor according to claim 1. The elastic portion is formed of a plunger provided on the lid and having a spring inside;
The locking recess is provided in the pipe-like member, and is constituted by a hole engaged with the head of the plunger.
The linear motor according to claim 1. A storage step for storing a plurality of magnets and spacers inside the pipe-like member;
A lid insertion step of inserting and arranging a lid at an end of the pipe-like member;
The lid inserting step is
In the process of inserting the lid into the end of the pipe-like member, an elastic portion provided on either one of the pipe-like member and the lid, and a locking recess provided on the other of the one and the other Is engaged,
Method of manufacturing a stator of a linear motor.

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