JP2021146471A - Method for polishing rotor for electric motor and its device - Google Patents

Abstract

To enable polishing an outer circumferential surface of a rotor having high concentricity with the outer circumferential surface of the rotor and the outer circumferential surface of the shaft, enable suppressing vibration of the rotor with the rotation, enable polishing the outer circumferential surface of the rotor having superior roundness and surface roughness, and enable polishing the outer circumferential surface of the rotor with high accuracy.SOLUTION: A device for polishing a rotor for an electric motor is equipped with: a rotor support mechanism part A with an opposing pair of V-shaped shaft receiving parts capable of rotatably supporting both ends of a shaft S of the rotor R of the electric motor, respectively; a rotational drive mechanism part B with an endless driving belt B1 coming in repression contact with an outer circumferential surface of the rotor and rotating the rotor; a retracting mechanism part C for retracting the rotational drive mechanism part from a drive position K where the driving belt comes in contact with the rotor to the retracted position where the driving belt is separated from the rotor; and a polishing mechanism part D with a polishing tape T for polishing the outer circumferential surface of the rotor.SELECTED DRAWING: Figure 1

Description

The present invention relates to, for example, a rotor polishing method for electric motors and an apparatus thereof for polishing the outer peripheral surface of a rotor (also referred to as a "rotor") of various electric motors such as a DC motor, an AC motor, and the like with a polishing tape. be.

Conventionally, a structure using a polishing tape is known as a device for polishing the surface of the commutator portion and the outer peripheral surface of the shaft portion of this type of rotor for electric motors.

Special Publication No. 61-262999 Japanese Patent No. 3404579

However, in the case of the above-mentioned conventional structure, the structure is such that the surface of the commutator portion of the rotor for a motor and the outer peripheral surface of the shaft portion are polished, not the structure for polishing the outer peripheral surface of the rotor for a motor, for example. The rotor has a structure in which a laminate of a plurality of thin plates or silicon steel plates is externally fitted to the shaft and integrally formed by aluminum die casting, and the rotor is a stator (also referred to as a "stator"). It is concentrically fitted in the rotor with a predetermined clearance, and the roundness and concentricity of the outer peripheral surface of the rotor with respect to the rotation axis of the shaft are strictly required, which also affects the rotation efficiency of the motor. In particular, from the viewpoint of improving the rotation efficiency, the processing accuracy of the outer peripheral surface of the rotor of the motor for electric vehicles (EV vehicles) is strongly required.

The present invention aims to solve such inconveniences, and the invention of the method according to claim 1 of the present invention is a rotational drive when polishing the outer peripheral surface of the rotor of the motor with a polishing tape. The mechanism unit is retracted to a retracted position where the drive belt separates from the rotor by the retracting mechanism unit, and both ends of the rotor shaft are rotated by the pair of V-shaped shaft receiving portions facing each other of the rotor support mechanism unit. It is freely supported, and the rotary drive mechanism unit is operated to face the drive position where the drive belt comes into contact with the rotor from the retracted position where the drive belt separates from the rotor, and the rotary drive mechanism unit is driven endlessly. The belt is elastically contacted with the outer peripheral surface of the rotor to rotate the rotor, the rotor is rotated by the drive belt of the rotation drive mechanism portion, and the outer peripheral surface of the rotor is subjected to the polishing tape of the polishing mechanism portion. A method for polishing a rotor for an electric motor, which is characterized by polishing.

The device according to claim 2 is a rotor polishing device that polishes the outer peripheral surface of the rotor of an electric motor with a polishing tape, and is capable of rotatably supporting both ends of the rotor shaft. A rotor support mechanism unit having a pair of V-shaped shaft receiving portions, a rotation drive mechanism unit having an endless drive belt that elastically contacts the outer peripheral surface of the rotor to rotate the rotor, and the same. A retracting mechanism that retracts the rotary drive mechanism from a drive position where the drive belt comes into contact with the rotor to a retracted position where the drive belt separates from the rotor, and a polishing tape that polishes the outer peripheral surface of the rotor. The rotor polishing apparatus for an electric motor is provided with a polishing mechanism portion provided with the above.

Further, the invention of the device according to claim 3 is an inclination angle capable of adjusting the angle formed by the traveling direction of the drive belt of the rotation drive mechanism unit and the orthogonal direction orthogonal to the rotation axis of the rotor to a predetermined inclination angle. The present invention is characterized in that it includes an adjusting mechanism and a positioning portion that abuts on one end of the shaft of the rotor, and the invention of the apparatus according to claim 4 is described in the polishing mechanism portion. The present invention is characterized by comprising a tape traveling mechanism for continuously or intermittently traveling the polishing tape and a pressure welding mechanism capable of pressing the polishing tape against the outer peripheral surface of the rotor. According to the invention of the device, the drive belt is arranged at the drive position where the upper outer peripheral surface of the rotor can be elastically contacted, and the polishing tape is arranged at the polishing position where the lower outer peripheral surface of the rotor is polished. It is characterized by that.

Further, in the invention of the device according to claim 6, the rotary drive mechanism unit is a pair of rolls for winding contact for winding and contacting the drive belt with the outer peripheral surface of the rotor at the drive position, and the drive belt is the drive belt. Suppression rolls that can be repressed on the outer peripheral surface of the rotor and the slack of the drive belt that occurs between the pair of winding contact rolls due to the repulsion of the repressive rolls and the separation of the rotor from the outer peripheral surface at the retracted position. It is characterized in that it is provided with a belt pressure absorbing mechanism for absorbing the above, and in the invention of the device according to claim 7, the rotary drive mechanism unit is a drive motor for driving the drive belt and the drive thereof. A drive roll that is rotated by a motor is provided, the drive belt is wound and arranged between the drive roll and the pair of winding contact rolls, and the retracting mechanism unit drives the rotation drive mechanism unit. The device is characterized in that it retracts from the drive position to the retracted position by a vertical swing cylinder and a gear mechanism around the rotation axis of the roll, and the invention of the device according to claim 8 is the tilt angle. The adjustment mechanism is characterized in that the rotation drive mechanism unit includes a rotation adjustment mechanism capable of rotation adjustment about a rotation axis having a rotation axis orthogonal to the rotation axis of the drive roll.

As described above, in the inventions according to the first and second aspects of the present invention, the rotation drive mechanism unit is retracted to a retracted position where the drive belt separates from the rotor by the retracting mechanism unit, and is artificially or automatically. Both ends of the rotor shaft of the electric motor are rotatably supported by a pair of V-shaped shaft receiving portions facing each other of the rotor support mechanism portion, and the rotation drive mechanism portion is retracted so that the drive belt separates from the rotor. The rotary drive mechanism unit is operated to face the drive position where the drive belt contacts the rotor from the position, and the endless drive belt of the rotary drive mechanism unit is elastically contacted with the outer peripheral surface of the rotor to rotate the rotor. The rotor is rotated by the drive belt of the rotor, and the outer peripheral surface of the rotor is polished by the polishing tape of the polishing mechanism portion. Therefore, the above rotation is performed on the pair of V-shaped shaft receiving portions facing the rotor support mechanism portion. Since both ends of the rotor shaft are rotatably supported and the outer peripheral surface of the rotor is polished, the outer peripheral surface of the rotor having a high degree of concentricity between the outer peripheral surface of the rotor and the outer peripheral surface of the shaft is polished. The rotor supports both ends of the rotor shaft rotatably on the pair of V-shaped shaft receivers facing each other of the rotor support mechanism, and the endless drive belt of the rotor drive mechanism is supported by the rotor. Since the outer peripheral surface of the rotor is polished by the polishing tape of the polishing mechanism part by elastically contacting the outer peripheral surface of the rotor, vibration of the rotor due to rotation can be suppressed and a perfect circle. The outer peripheral surface of the rotor with good degree and surface roughness can be polished, the outer peripheral surface of the rotor can be polished with high accuracy, and the rotor can be accurately attached to the stator of the electric motor with a predetermined clearance. It can be arranged, the outer peripheral surface of the rotor and the shaft are not gripped, damage to the rotor due to gripping can be prevented, and the rotor can be easily supplied and removed. , The efficiency of the polishing process of the rotor can be further improved.

Further, in the invention according to claim 3, the inclination formed by the traveling direction of the drive belt of the rotation drive mechanism unit and the orthogonal direction orthogonal to the rotation axis of the rotor can be adjusted to a predetermined inclination angle. Since it is configured to include an angle adjusting mechanism and a positioning portion that abuts on one end of the rotor shaft, the inclination angle formed between the traveling direction of the drive belt and the orthogonal direction orthogonal to the rotation axis of the rotor. One end of the rotor shaft abuts on the positioning portion due to the thrust force generated by the rotor, and the rotor can be positioned by the shaft receiving portion, the positioning structure of the rotor can be simplified, and the rotor shaft can be positioned with respect to the shaft receiving portion. The rotor can be easily supplied and taken out, and in the invention according to claim 4, the tape traveling mechanism and the polishing tape for continuously or intermittently running the polishing tape on the polishing mechanism portion. Since the rotor is provided with a pressure welding mechanism capable of pressure contacting the outer peripheral surface of the rotor, the outer peripheral surface of the rotor can be accurately polished by the traveling operation and the pressure welding operation of the polishing tape, and according to claim 5. In the present invention, the drive belt is arranged at the drive position where the upper outer peripheral surface of the rotor can be elastically contacted, and the polishing tape is arranged at the polishing position where the lower outer peripheral surface of the rotor is polished. Therefore, mutual interference between the elastic contact operation of the drive belt of the rotary drive mechanism for rotating the rotor and the pressure contact operation of the polishing tape can be avoided, and the winding angle of the drive belt with respect to the outer peripheral surface of the rotor is increased. This makes it possible to reliably drive the rotation of the rotor by the drive belt, and the outer peripheral surface of the rotor can be satisfactorily polished.

Further, in the invention according to claim 6, the rotary drive mechanism unit uses the pair of winding contact rolls and the drive belt for winding and contacting the drive belt with the outer peripheral surface of the rotor at the drive position. The repulsive roll and the repressive roll that can be repressed are repressed on the outer peripheral surface of the rotor, and the slack of the drive belt that occurs between the pair of winding contact rolls due to the separation of the rotor from the outer peripheral surface at the retracted position is absorbed. Since it is configured to be equipped with a belt pressure absorbing mechanism, it is possible to increase the winding angle of the drive belt with respect to the outer peripheral surface of the rotor, and the drive belt can rotate the rotor and run smoothly. This can be done, the outer peripheral surface of the rotor can be satisfactorily polished, and in the invention according to claim 7, the rotary drive mechanism unit is a drive motor and a drive for driving the drive belt. A drive roll that is rotated by a motor is provided, and a drive belt is wound and arranged between the drive roll and the pair of winding contact rolls. Since the vertical swing cylinder and the gear mechanism are configured to retract from the drive position to the retracted position, the structure of the retracted mechanism can be simplified, and the retracted position can be simplified from the drive position. In addition, in the invention according to claim 8, the tilt angle adjusting mechanism rotates the rotation drive mechanism unit so as to have a rotation axis orthogonal to the rotation axis of the drive roll. Since it is configured to have a swivel adjustment mechanism that can swivel around the axis, the structure of the tilt angle adjustment mechanism can be simplified, and it is orthogonal to the traveling direction of the drive belt and the rotation axis of the rotor. The angle formed by the direction can be adjusted to a predetermined inclination angle, the rotor can be rotated smoothly by adjusting the thrust force, and one end of the rotor shaft is reliably brought into contact with the positioning portion. This makes it possible to satisfactorily polish the outer peripheral surface of the rotor.

It is an overall front sectional view of the Example of Embodiment of this invention. It is an overall plan view of the Example of Embodiment of this invention. It is a partial side sectional view of the Example of Embodiment of this invention. It is a partially enlarged normal cross-sectional view of the Example of Embodiment of this invention. It is a partially enlarged side sectional view of the Example of Embodiment of this invention. It is a partially enlarged plan view of the Example of Embodiment of this invention. It is a partial normal cross-sectional view of the embodiment of the present invention. It is a partially enlarged normal cross-sectional view of the Example of Embodiment of this invention. It is explanatory perspective view of the Example of Embodiment of this invention. It is explanatory perspective view of the Example of Embodiment of this invention.

1 to 10 show an example of an embodiment of the present invention, and as shown in FIGS. 1, 2, and 7, roughly classified, both ends of the shaft S of the rotor R of the motor are rotatably opposed to each other. a rotor supporting mechanism a having a shaft receiving portion a ₁ · a ₁ of a pair of V-shaped, the drive belt B ₁ endless rotating the rotor R and repression contact with the outer peripheral surface G of the rotor R The provided rotary drive mechanism B and the rotary drive mechanism B are retracted from the drive position K where the _{drive belt B 1} contacts the rotor R to the retract position L where the _{drive belt B 1 separates from the rotor R.} It is configured to include a retracting mechanism portion C and a polishing mechanism portion D provided with a polishing tape T for polishing the outer peripheral surface G of the rotor R.

In this case, 1, 2, as shown in FIG. 6, the angle between the direction perpendicular Nd perpendicular to the rotation axis R ₀ in the running direction Bd and the rotor R of the drive belt B ₁ of the rotation drive mechanism B It is configured to include an inclination angle adjusting mechanism E that can be adjusted to a predetermined inclination angle θ, and a positioning portion F that abuts on one end of the shaft S of the rotor R.

Further, in this case, FIG. 1, as shown in FIG. 2, the outer peripheral surface of the tape running mechanism D ₁ and the polishing tape T to the rotor R to continuously or intermittently traveling the abrasive tape T to the polishing mechanism D G It is provided with a pressure welding mechanism D _{2 capable of pressure welding.}

Further, in this case, FIG. 4, as shown in FIG. 5, the drive belt B ₁ represents disposed over the outer peripheral surface G _U repression can contact a said drive position K of the rotor R, the abrasive tape T is the rotor They are disposed in a polishing position Q to polish the lower outer peripheral surface G _D of R.

Further, in this case, as shown in FIGS. 1, 4, 7, and 9, the rotation drive mechanism unit B winds the drive belt B ₁ around the outer peripheral surface G of the rotor R at the drive position K. The pair of winding contact rolls B ₂ and B ₂ and the drive belt B ₁ that are wound and contacted with the rotor R are compressed against the outer peripheral surface G of the rotor R, _{and the suppression roll B 3} and the suppression roll B ₃ are suppressed. The slack of the _{drive belt B 1} that occurs between the _{pair of winding contact rolls B 2} and B ₂ due to the separation of the rotor R from the outer peripheral surface G at the retracted position L is _{caused by the rise of the suppression roll B 3} to drive the drive belt B. It is configured to include a belt pressure absorbing mechanism B _{4 that lifts and absorbs 1.}

Further, in this case, 1, 2, as shown in FIG. 7, the drive roll B _R the rotation driving mechanism part B is rotated by the drive motor B _M and the drive motor B _M for driving the drive belt B ₁ equipped to become the driving belt B ₁ between the drive roll B _R and the pair of wrapping contact roll B ₂ · B ₂ is disposed wrapping, the retracting mechanism C is driven to rotate the driving mechanism portion B roll the rotational axis B _R0 for vertical pivoting about the cylinder C ₁ and the gear mechanism C ₂ of B _R is configured to retract operation to the retracted position L from the drive position K.

Further, in this case, FIG. 1, as shown in FIG. 2, the pivot shaft E ₁ the inclination angle adjusting mechanism E is with pivot axis E ₁₀ orthogonal to the rotation driving mechanism part B to the rotational axis B _R0 of the drive roll B _R It is configured to be provided with a swivel adjustment mechanism E _{2 that can be swivel-adjustable as a center.}

In this case, the rotor support mechanism portion A has a support base 2 erected on the machine body 1 as shown in FIGS. 1, 2, 4, 5, and 10, and is orthogonal to the polishing tape T on the support base 2. attaching a guide key member 3 in the direction of, attaching the support base the opposing pair of V-shaped shaft receiving portion a ₁ · a ₁ to 2 with guide key member 3 by the position adjustably bolt 4, the shaft receiving portion a ₁ · in V-shaped receiving surface 5.5 of a ₁ provided at both ends of the shaft S of the rotor R of the electric motor to be rotatably supported, respectively, in this case, V-shaped receiving surface 5 of the shaft receiving portions a _1, a ₁ - 5 respectively are arranged industrial diamond material or other hard material of the hard material 5a-5a within said guide key member 3 by by adjusting the position of the shaft receiving portions a _1, a ₁ of the counter pair of V-shaped It is configured to be compatible with the length and size of the shaft S of the rotor R of the motor.

Further, in this case, FIG. 1, as shown in FIG. 3, the rotary drive mechanism section B, a rocker body 6 to the pair of wrapping contact roll B ₂ · B _2, repression roll belt repression absorbing mechanism B ₄ B ₃ and drive roll B _R are arranged, and the pair of wrapping contact roll B ₂ · B _2, repression roll B ₃ to the drive roll B _R of the endless and drive belt B ₁ is wound arranged It is configured.

Further, in this case, as shown in FIGS. 1 and 2, in the retracting mechanism portion C, the tilt angle adjusting mechanism E, and the turning adjusting mechanism E ₂ , the swivel base 7 is mounted on the horizontal plane portion 1a of the machine body 1 and the swivel shaft E _{1 is used.} by turning adjustably disposed about a pivot axis E _10, the bolt 8 for fixing the revolving base 7 to the machine body 1 is provided, the rotary drive mechanism mounted to the mounting base 9 by bolts 9b the mount 9 in the revolving base 7 and Jikuka the rotary shaft 10 with mounting the driving motor B _M of B, and the main shaft and the rotary shaft 10 of the driving motor B _M are connected by the joint 11, whereas, FIG. 1, FIG. 2, as shown in FIG. 7, the mounting platform 9 disposed vertically slidably in the vertical movement member 12 by the guide member 12a and the sliding portion 12b with a mounting piece 9a attach the vertical swing cylinder C _1, to the rotary shaft 10 of the gear mechanism C ₂ pinions C _2A is rotatably mounted on a shaft, a rack gear C _{2B meshing with a pinion gear C 2A} is attached to a vertically moving member 12 in the vertical direction, a swinging machine 6 is attached to a boss portion of the pinion gear C _{2A, and the rotation is performed.} the shaft 10 mounting the drive roll B _R, the retracting mechanism C is driven roll B above retreat position from the driving position K by the vertical swing cylinder C ₁ and the gear mechanism C ₂ around the rotation axis B _R0 of _R L is configured to retract operation, the driving motor B _M is configured to drive belt B ₁ via the rotary shaft 10 and the drive roll B _R as Cyclic drive, also, in the positioning portion F, The positioning base 13 is attached to the support base 2 with bolts 13a so that the position can be adjusted by the guide key member 3, and the stop pin 14 is provided on the positioning base 13 so as to be adjustable in advance and retreat. _{The rotor R is rotated by the shaft receiving portions A 1} and A ₁ by the thrust force P (shown) generated by the inclination angle θ formed by the traveling direction Bd of the drive belt B _{1 and the orthogonal direction Nd orthogonal to the rotation axis R 0 of the rotor R.} It is moved above is abutted against one end of the shaft S of the rotor R in the positioning unit F, are positioned freely configure rotor R with the shaft receiving portion a ₁ · a _1.

In this case, as shown in FIG. 3, in the repression roll B ₃ and the belt repression absorption mechanism B ₄ , the repression cylinder 15 is attached to the rocking machine 6, and the repression member 16 is slid with the guide material 16a. part 16b by provided vertically slidably, attached repression roll B ₃ repression member 16, as shown in FIG. 4, in the drive position K, the driving belt B ₁ of the rotor R by repression roll B ₃ As shown in FIG. 7, a drive belt generated between the _{pair of winding contact rolls B 2} and B ₂ due to the separation of the rotor R from the outer peripheral surface G at the retracted position L while being configured to be repressive on the outer peripheral surface G. It is configured to absorb lift the drive belt B ₁ by an increase in repression roll B ₃ slack of B _1.

Further, in this case, FIG. 1, as shown in FIG. 2, in the tape running mechanism D ₁ of the said abrasive mechanism D, fitted with a fully wound roll 17 wound abrasive tape T on one side of the machine body 1 , A winding motor 17a for unwinding the full winding roll 17, a winding roll 18 and a holding roll 19 are arranged on the other side of the machine body 1, and a winding motor for rotating the winding roll 18 on the machine body 1. 20 is attached, and the polishing tape T unwound from the full-winding roll 17 is continuously or intermittently wound and transferred by the winding roll 18 via the guide rolls 21 and 22 and the rotor support mechanism portion A. is also, in the above pressing mechanism D ₂ is 4, 5, 6, as shown in FIG. 8, and between the support table 2 the opposing pair of V-shaped shaft receiving portion a ₁ · a ₁ The receiving member 23 is attached by the guide key member 3 with bolts 23a so that the position can be adjusted, and the pressure welding member 24 can be moved up and down by the guide pins 23c / 23c, the pressure welding springs 24b and the guide holes 24a / 24a above the receiving member 23. An arcuate pressure contact surface 24c is formed on the upper surface of the pressure contact member 24, a stopper convex portion 24d is formed on the pressure contact member 24, and an upper limit stopper 23b that abuts on the stopper convex portion 24d of the pressure contact member 24 is provided on the receiving member 23. mounting, Figure 4, as shown in FIG. 8, a drive belt B ₁ by the repression roll B ₃ and repression contact with the upper outer peripheral surface G _U of the rotor R, the abrasive tape T the lower outer peripheral surface G _D of the rotor R The pressure contact surface 24c of the pressure contact member 24 is pressed against the pressure contact surface 24c of the pressure contact spring 24b to obtain a polishing pressure on the outer peripheral surface G of the rotor R of the polishing tape T.

In this case, the polishing tape T is obtained by coating a base material such as a polyester film, metal, cloth, foam film, or woolen cloth with fixed abrasive grains having a predetermined particle size such as aluminum oxide, chromium oxide, silicon carbide, or diamond. Those that are combined are used. It should be noted that a polishing tape T having a structure in which fixed abrasive grains are fixed to such a base material is used, and a dry polishing structure that does not use a lubricant, or a polishing tape T having a structure in which fixed abrasive grains are fixed to a base material is used as a lubricant. Wet polishing structure that polishes while supplying, or wet polishing that supplies a polishing agent containing free abrasive grains using a woven cloth, non-woven fabric, foam film, or flocked cloth to which fixed abrasive grains are not fixed as polishing tape T. A structure may be adopted, and therefore, the polishing tape T referred to here also includes a polishing tape having a structure in which fixed abrasive grains are fixed and a polishing tape having a structure in which fixed abrasive grains are not fixed.

Since the example of this embodiment has the above configuration, as shown in FIG. 7, the rotation drive mechanism unit B is moved to the retracted position L where the _{drive belt B 1 is separated from the rotor R by the retracting mechanism portion C, and artificially or} automatically both ends of the shaft S of the rotor R of the electric motor is rotatably supported respectively on the rotor supporting mechanism unit opposed pair of V-shaped shaft receiving portion a ₁ · a ₁ of a, as shown in FIG. 1, The rotary drive mechanism B is operated so as _{to face the drive position K in which the drive belt B 1} contacts the rotor R from the retracted position L where the _{drive belt B 1} separates from the rotor R, and the rotary drive mechanism B is endless. drive belt B ₁ a and repression contact with the outer peripheral surface G of the rotor R to rotate the rotor R, the polishing tape polishing mechanism D to rotate the rotor R by a drive belt B ₁ of the rotation driving mechanism part B of T by now polishing the outer peripheral surface G of the rotor R, both ends of this reason, the shaft S of the rotor R to the rotor supporting mechanism shaft receiving a ₁ · a ₁ opposed pair of V-shaped of a Since the outer peripheral surface G of the rotor R is polished by rotatably supporting each portion, the outer peripheral surface G of the rotor R having a high degree of concentricity between the outer peripheral surface G of the rotor R and the outer peripheral surface of the shaft S. polishing can be performed in, rotor support mechanism shaft receiving a ₁ · a ₁ opposed pair of V-shaped in a both ends of the shaft S of the rotor R is rotatably supported, respectively, the rotary drive mechanism The endless drive belt B ₁ of the portion B is elastically contacted with the outer peripheral surface G of the rotor R to rotate the rotor R, and the outer peripheral surface G of the rotor R is polished with the polishing tape T of the polishing mechanism portion D. Therefore, the vibration of the rotor R due to rotation can be suppressed, the outer peripheral surface G of the rotor R having good roundness and surface roughness can be polished, and the outer peripheral surface of the rotor R can be polished. G can be accurately polished, the rotor R can be accurately placed on the stator of the electric motor with a predetermined clearance, and the outer peripheral surface G of the rotor R and the shaft S can be gripped without being gripped. Damage to the rotor R due to the above can be prevented, the supply and removal of the rotor R can be easily performed, and the efficiency of the polishing process of the rotor R can be further improved.

In this case, 1, 2, as shown in FIG. 6, the angle between the direction perpendicular Nd perpendicular to the rotation axis R ₀ in the running direction Bd and the rotor R of the drive belt B ₁ of the rotation drive mechanism B an inclination angle adjusting mechanism E can be adjusted to a predetermined inclination angle theta, because they constitute and a positioning portion F which abuts the one end portion of the shaft S of the rotor R, the traveling direction Bd of the drive belt B ₁ And the thrust force P generated by the inclination angle θ formed by the orthogonal direction Nd orthogonal to the rotation axis R ₀ of the rotor R causes one end of the shaft S of the rotor R to abut on the positioning portion F to cause the rotor R to come into contact with the positioning portion F. can be positioned in the shaft receiving portion a ₁ · a _1, a positioning structure of a rotor R can be simplified, easily performed that the supply and removal of the rotor R with respect to the shaft receiving portions a ₁ · a ₁ can be, also, in this case, 1, 2, as shown in FIG. 3, the rotation of the tape running mechanism D ₁ and the polishing tape T is continuously or intermittently traveling the abrasive tape T to the polishing mechanism D _{Since the pressure welding mechanism D 2} capable of pressure contacting the outer peripheral surface G of the child R is provided, the outer peripheral surface G of the rotor R can be accurately polished by the traveling operation and the pressure welding operation of the polishing tape T, and this If, as shown in FIG. 4, the drive belt B ₁ represents disposed over the outer peripheral surface G _U repression can contact a said drive position K of the rotor R, the lower outer peripheral surface G of the abrasive tape T is the rotor R _Since it is arranged at the polishing position Q for polishing D, it is possible to avoid mutual interference between the pressure contact operation of _{the drive belt B 1} of the rotation drive mechanism unit B that rotates the rotor R and the pressure contact operation of the polishing tape T. The winding angle γ _{of the drive belt B 1} with respect to the outer peripheral surface G of the rotor R can be increased, and the rotor R can be reliably driven by _{the drive belt B 1 to rotate the rotor R.} The outer peripheral surface G can be satisfactorily polished.

Further, in this case, as shown in FIGS. 1 and 4, the rotation drive mechanism unit B is used for a pair of winding contacts for winding and contacting the _{drive belt B 1 with the outer peripheral surface G of the rotor R at the drive position K.} roll B ₂ · B _2, the outer periphery of the rotor R in the retracted position L with the drive belt B ₁ to repression the outer peripheral surface roll repression possible oppression G B ₃ and repression roll B ₃ of the rotor R Since the rotor is provided with a belt pressure absorbing mechanism B ₄ that absorbs the slack of the drive belt B _{1 generated between the pair of winding contact rolls B 2} and B ₂ due to the separation from the surface G, the outer circumference of the rotor R is provided. it is possible to increase the γ wrap angle of the drive belt B ₁ with respect to the surface G, smoothly can be carried out a rotational drive and running of the drive belt B ₁ of the rotor R by the drive belt B _1, the rotor R The outer peripheral surface G can be satisfactorily polished, and in this case, as shown in FIGS. 1 and 7, the rotary drive mechanism portion B is _{a drive motor BM} and a drive motor for driving the _{drive belt B 1.} becomes a driving roll B _R which rotates by B _M, the drive belt B ₁ between the drive roll B _R and the pair of wrapping contact roll B ₂ · B ₂ is disposed wrapping, the retracting mechanism C is constructed from the driving position K by the vertical swing cylinder C ₁ and the gear mechanism C ₂ a rotation driving mechanism section B around the rotation axis B _R0 of the drive roll B _R so as to retracting operation to the retracted position L Therefore, the structure of the retracting mechanism portion C can be simplified, the retracting operation from the drive position K to the retracting position L can be smoothly performed, and in this case, FIGS. 1, 2, and 2. 6 as, the inclination angle adjusting mechanism E is swivel adjustable pivot adjustment mechanism about a pivot axis E ₁ having a pivot axis E ₁₀ orthogonal to the rotation driving mechanism part B to the rotational axis B _R0 of the drive roll B _R because are configured with E _2, the structure of the tilt angle adjusting mechanism E can be simplified, orthogonal direction Nd perpendicular to the rotation axis R ₀ in the running direction Bd and the rotor R of the drive belt B ₁ The angle between the rotor and the rotor can be adjusted to a predetermined inclination angle θ, the rotor R can be smoothly rotated by adjusting the thrust force P, and one end of the shaft S of the rotor R is used as the positioning portion F. The contact can be surely made, and the outer peripheral surface G of the rotor R can be satisfactorily polished.

The present invention is not limited to the embodiment of the above embodiment, the rotor R, the shaft S, the structure of the polishing tape T, rotor support mechanism A, the shaft receiving portion A ₁ · A _1, the rotary drive mechanism B, the drive belt _{B 1,} entraining contact roll _{B 2} · _B 2, repression roll _{B 3,} belt repression absorbing mechanism _{B 4,} the driving motor _{B M,} drive roll _{B R,} the traveling direction Bd, the rotation axis _{B R0} , Retract mechanism C, Vertical swing cylinder C ₁ , Gear mechanism C ₂ , Polishing mechanism D, Tape running mechanism D ₁ , Pressure welding mechanism D ₂ , Tilt angle adjustment mechanism E, Swing shaft E ₁ , Swing adjustment mechanism E ₂ , The structure of the swivel axis E ₁₀ and the positioning portion F and the inclination angle θ are appropriately changed and designed.

As mentioned above, the intended purpose can be sufficiently achieved.

R Rotor S Shaft T Polishing tape A Rotor support mechanism A ₁ Shaft receiving part B Rotating drive mechanism B ₁ Drive belt B ₂ Rolls for contact contact B ₃ Repulsion roll B ₄ Belt repulsion absorption mechanism _BM Drive motor B _R drive roll Bd running direction B _R0 rotation axis C retracting mechanism C ₁ vertical swing cylinder C ₂ gear mechanism D polishing mechanism D ₁ tape transport mechanism D ₂ pressing mechanism E tilt angle adjusting mechanism E ₁ pivot axis E ₂ Swivel adjustment mechanism E ₁₀ Swivel axis F Positioning part G Outer circumference surface G _U Upper outer peripheral surface G _D Lower outer peripheral surface K Drive position L Retract position R ₀ Rotation axis Nd Orthogonal direction Q Polishing position θ Tilt angle

Claims (8)

When polishing the outer peripheral surface of the rotor of the motor with polishing tape, the rotation drive mechanism unit is retracted to a retracted position where the drive belt separates from the rotor, and both ends of the rotor shaft are rotated. The drive belt is rotatably supported by a pair of V-shaped shaft receiving portions facing each other of the child support mechanism portion, and the drive belt comes into contact with the rotor from a retracted position where the drive belt separates from the rotor. The endless drive belt of the rotary drive mechanism unit is elastically contacted with the outer peripheral surface of the rotor to rotate the rotor, and the rotor is driven by the drive belt of the rotary drive mechanism unit. A rotor polishing method for an electric motor, which comprises rotating and polishing the outer peripheral surface of the rotor with a polishing tape of a polishing mechanism portion. A rotor polishing device that polishes the outer peripheral surface of the rotor of an electric motor with a polishing tape, and is provided with a pair of opposed V-shaped shaft receiving portions capable of rotatably supporting both ends of the rotor shaft. A rotation drive mechanism unit provided with a child support mechanism unit, an endless drive belt for rotating the rotor by elastically contacting the outer peripheral surface of the rotor, and the rotation drive mechanism unit as the rotor and the drive belt. It is provided with a retracting mechanism unit for retracting the drive belt from a driving position where the rotor is in contact to a retracting position where the drive belt separates from the rotor, and a polishing mechanism unit provided with a polishing tape for polishing the outer peripheral surface of the rotor. A rotor polishing device for electric motors. An inclination angle adjusting mechanism capable of adjusting the angle formed by the traveling direction of the drive belt of the rotation drive mechanism unit and the orthogonal direction orthogonal to the rotation axis of the rotor to a predetermined inclination angle, and one end of the shaft of the rotor. The rotor polishing apparatus for an electric motor according to claim 2, further comprising a positioning portion that comes into contact with the portion. 2. 3. The rotor polishing device for an electric motor according to 3. The drive belt is arranged at the drive position capable of elastically contacting the upper outer peripheral surface of the rotor, and the polishing tape is arranged at the polishing position for polishing the lower outer peripheral surface of the rotor. Item 2. The rotor polishing apparatus for an electric motor according to any one of Items 2 to 4. The rotation drive mechanism unit is a pair of winding contact rolls that bring the drive belt into winding contact with the outer peripheral surface of the rotor at the drive position, and a compression roll capable of suppressing the drive belt on the outer peripheral surface of the rotor. Also provided with a belt suppression absorption mechanism that suppresses the suppression roll and absorbs the slack of the drive belt that occurs between the pair of winding contact rolls due to the separation of the rotor from the outer peripheral surface at the retracted position. The rotor polishing apparatus for an electric motor according to any one of claims 2 to 5, wherein the rotor polishing apparatus is for an electric motor. The rotary drive mechanism unit includes a drive motor that drives the drive belt and a drive roll that is rotated by the drive motor, and the drive belt is placed between the drive roll and the pair of winding contact rolls. The retracting mechanism unit is wound around, and the retracting mechanism unit retracts the rotation driving mechanism unit from the driving position to the retracting position by a vertical swing cylinder and a gear mechanism around the rotation axis of the drive roll. Item 2. The rotor polishing apparatus for a motor according to any one of Items 2 to 6. The motor according to claim 7, wherein the tilt angle adjusting mechanism comprises a swivel adjustment mechanism capable of swiveling and adjusting the rotation drive mechanism unit about a swivel axis having a swivel axis orthogonal to the rotation axis of the drive roll. Rotor polishing device.

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