CN113492347A - Method and apparatus for grinding rotor of motor - Google Patents

Method and apparatus for grinding rotor of motor Download PDF

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Publication number
CN113492347A
CN113492347A CN202011376466.3A CN202011376466A CN113492347A CN 113492347 A CN113492347 A CN 113492347A CN 202011376466 A CN202011376466 A CN 202011376466A CN 113492347 A CN113492347 A CN 113492347A
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CN
China
Prior art keywords
rotor
belt
driving
peripheral surface
outer peripheral
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Granted
Application number
CN202011376466.3A
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Chinese (zh)
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CN113492347B (en
Inventor
细贝晃司
汤本裕
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Sanshin Co Ltd
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Sanshin Co Ltd
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Publication date
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Publication of CN113492347A publication Critical patent/CN113492347A/en
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Publication of CN113492347B publication Critical patent/CN113492347B/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B21/00—Machines or devices using grinding or polishing belts; Accessories therefor
    • B24B21/02—Machines or devices using grinding or polishing belts; Accessories therefor for grinding rotationally symmetrical surfaces
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B21/00—Machines or devices using grinding or polishing belts; Accessories therefor
    • B24B21/004—Machines or devices using grinding or polishing belts; Accessories therefor using abrasive rolled strips
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B21/00—Machines or devices using grinding or polishing belts; Accessories therefor
    • B24B21/18—Accessories
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B21/00—Machines or devices using grinding or polishing belts; Accessories therefor
    • B24B21/18—Accessories
    • B24B21/20—Accessories for controlling or adjusting the tracking or the tension of the grinding belt
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B41/00—Component parts such as frames, beds, carriages, headstocks
    • B24B41/06—Work supports, e.g. adjustable steadies
    • B24B41/067—Work supports, e.g. adjustable steadies radially supporting workpieces
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B47/00—Drives or gearings; Equipment therefor
    • B24B47/10—Drives or gearings; Equipment therefor for rotating or reciprocating working-spindles carrying grinding wheels or workpieces
    • B24B47/12—Drives or gearings; Equipment therefor for rotating or reciprocating working-spindles carrying grinding wheels or workpieces by mechanical gearing or electric power
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
    • H02K15/02—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies

Abstract

A method and apparatus for grinding a rotor for a motor, capable of grinding the outer peripheral surface of the rotor and the outer peripheral surface of a shaftThe polishing with high concentricity of (a) can suppress vibration of the rotor with rotation, can polish the outer peripheral surface of the rotor with good roundness and surface roughness, and can polish the outer peripheral surface of the rotor with high precision. The disclosed device is provided with: a rotor support mechanism (A) including a pair of opposing V-shaped bearing portions capable of rotatably supporting both end portions of a shaft (S) of a rotor (R) of the motor; a rotation driving mechanism part (B) comprising an annular driving belt (B) which elastically contacts with the outer circumferential surface of the rotor to rotate the rotor1) (ii) a A retraction mechanism (C) for causing the rotary drive mechanism to perform a retraction operation from a drive position (K) at which the drive belt is in contact with the rotor to a retraction position at which the drive belt is separated from the rotor; and a grinding mechanism section (D) including a grinding belt (T) for grinding the outer peripheral surface of the rotor.

Description

Method and apparatus for grinding rotor of motor
Technical Field
The present invention relates to a method and an apparatus for polishing a rotor for a motor, which polish an outer peripheral surface of a rotor (also referred to as a rotor) of, for example, a dc motor, an ac motor, or various other motors with a polishing tape.
Background
Conventionally, a structure is widely known in which a grinding tape is used as a means for grinding the surface of the commutator portion or the outer peripheral surface of the shaft portion of the rotor for a motor.
Documents of the prior art
Patent document
Patent document 1: japanese examined patent publication No. 61-26299
Patent document 2: japanese patent application laid-open No. 3404579
Disclosure of Invention
Problems to be solved by the invention
However, in the case of the above-described conventional structure, the structure is not a structure in which the outer peripheral surface of the shaft portion or the surface of the commutator portion of the rotor for the motor is ground, and the structure is a structure in which the outer peripheral surface of the rotor for the motor is integrally formed in an aluminum die-cast by fitting a laminated body of a plurality of thin plate materials or silicon steel plates to the shaft, for example, the rotor is concentrically fitted to a stator (also referred to as "stator") with a predetermined gap therebetween, and the true roundness and concentricity of the outer peripheral surface of the rotor with respect to the rotation axis of the shaft are strictly required, and the rotational efficiency of the motor is also influenced, and therefore, in recent years, the machining accuracy of the outer peripheral surface of the rotor of the motor for the electric vehicle (EV vehicle) is strongly required particularly from the viewpoint of improving the rotational efficiency.
Means for solving the problems
The present invention is directed to solving the above-mentioned problems, and an invention of the method according to the first aspect of the present invention is a rotor grinding method for a motor, characterized in that, when the outer peripheral surface of the rotor of the motor is polished by the polishing belt, the rotation driving mechanism is retreated by the retreating mechanism to a retreating position at which the driving belt is separated from the rotor, and both end portions of the shaft of the rotor are rotatably supported by a pair of opposed V-shaped bearing portions of a rotor support mechanism, and the rotary drive mechanism section is caused to perform a facing operation from a retracted position where the drive belt is separated from the rotor to a drive position where the drive belt is in contact with the rotor, and an annular drive belt of the rotation drive mechanism is elastically contacted with the outer peripheral surface of the rotor to rotate the rotor, and the rotor is rotated by a drive belt of the rotation drive mechanism to grind the outer peripheral surface of the rotor by a grinding belt of the grinding mechanism.
In addition, according to a second aspect of the present invention, there is provided a rotor grinding apparatus for a motor, wherein an outer peripheral surface of a rotor of the motor is ground with a grinding tape, the rotor grinding apparatus for a motor comprising: a rotor support mechanism including a pair of opposing V-shaped bearing portions capable of rotatably supporting both end portions of a shaft of the rotor; a rotation driving mechanism unit including an endless driving belt that elastically contacts an outer peripheral surface of the rotor to rotate the rotor; a retraction mechanism configured to cause the rotary drive mechanism to perform a retraction operation of retracting the drive belt from a drive position at which the drive belt is in contact with the rotor to a retraction position at which the drive belt is separated from the rotor; and a grinding mechanism section including a grinding belt for grinding the outer peripheral surface of the rotor.
In addition, according to an aspect of the present invention, there is provided a rotor grinding apparatus for a motor, comprising: an inclination angle adjusting mechanism capable of adjusting an angle formed by a running direction of a drive belt of the rotation driving mechanism and an orthogonal direction orthogonal to a rotation axis of the rotor to a predetermined inclination angle; and a positioning portion that abuts against one end portion of the shaft of the rotor, wherein the polishing mechanism portion includes: a belt running mechanism for continuously or intermittently running the polishing belt, and a pressure bonding mechanism capable of pressing the polishing belt to the outer peripheral surface of the rotor, and the device according to a fifth aspect of the present invention is characterized in that the drive belt is disposed at the drive position capable of elastically contacting the upper outer peripheral surface of the rotor, and the polishing belt is disposed at a polishing position for polishing the lower outer peripheral surface of the rotor.
In the device according to a sixth aspect of the present invention, the rotation driving mechanism includes: a pair of winding contact rollers for bringing the drive belt into winding contact with the outer peripheral surface of the rotor at the drive position; an elastic pressing roller capable of elastically pressing the drive belt against the outer peripheral surface of the rotor; and a belt elastic pressing absorbing mechanism that elastically presses the elastic pressing roller and absorbs slack of the drive belt generated between the pair of winding contact rollers when the drive belt is separated from the outer peripheral surface of the rotor at the retracted position, wherein the rotation driving mechanism section includes a driving motor that drives the drive belt and a drive roller that is rotated by the driving motor, the drive belt is wound and arranged between the drive roller and the pair of winding contact rollers, the retraction mechanism section causes the rotation driving mechanism section to perform a retraction operation of retracting from the drive position to the retracted position around a rotation axis of the drive roller by a vertical swing cylinder and a gear mechanism, and the tilt angle adjusting mechanism is constituted by a rotation adjusting mechanism, the rotation adjustment mechanism can adjust the rotation of the rotation drive mechanism section around a rotation shaft having a rotation axis orthogonal to the rotation axis of the drive roller.
ADVANTAGEOUS EFFECTS OF INVENTION
As described above, according to the present invention, in the first aspect and the second aspect, the rotation driving mechanism is caused to perform the retracting operation of retracting the rotation driving mechanism to the retracted position where the driving belt is separated from the rotor by the retracting mechanism, both end portions of the shaft of the rotor of the motor are manually or automatically supported to be rotatable respectively in the pair of opposed V-shaped bearing portions of the rotor supporting mechanism, the rotation driving mechanism is caused to perform the opposing operation from the retracted position where the driving belt is separated from the rotor to the driving position where the driving belt is in contact with the rotor, the annular driving belt of the rotation driving mechanism is elastically contacted with the outer circumferential surface of the rotor to rotate the rotor, the rotor is rotated by the driving belt of the rotation driving mechanism to grind the outer circumferential surface of the rotor by the grinding belt of the grinding mechanism, and therefore, both end portions of the shaft of the rotor are supported to be rotatable respectively in the pair of opposed V-shaped bearing portions of the rotor supporting mechanism to grind the outer circumferential surface of the rotor The outer peripheral surface of the rotor is ground so that the outer peripheral surface of the rotor and the outer peripheral surface of the shaft can be made to have high concentricity, and the end portions of the shaft of the rotor are supported so as to be rotatable respectively by a pair of opposed V-shaped bearing portions of the rotor support mechanism portion, and the rotor is rotated by elastically contacting an endless drive belt of the rotary drive mechanism portion with the outer peripheral surface of the rotor, so that the outer peripheral surface of the rotor is ground by a grinding belt of the grinding mechanism portion, so that the vibration of the rotor with rotation can be suppressed, the outer peripheral surface of the rotor can be ground with good roundness and surface roughness, the outer peripheral surface of the rotor can be ground with high precision, the rotor can be disposed in a stator of a motor with a predetermined gap therebetween with high precision, and damage to the rotor with gripping can be prevented without gripping the outer peripheral surface of the rotor and the shaft, the rotor can be easily attached and detached, including supply and removal, and the efficiency of grinding the rotor can be further improved.
Further, in the invention according to the third aspect, the rotation drive mechanism portion is configured to include an inclination angle adjustment mechanism capable of adjusting an angle formed by a running direction of the drive belt of the rotation drive mechanism portion and an orthogonal direction orthogonal to the rotation axis of the rotor to a predetermined inclination angle, and a positioning portion which is abutted against one end portion of the shaft of the rotor, so that one end portion of the shaft of the rotor is abutted against the positioning portion by a thrust generated by the inclination angle formed by the running direction of the drive belt and the orthogonal direction orthogonal to the rotation axis of the rotor, and the rotor can be positioned in the bearing portion, the positioning structure of the rotor can be simplified, the rotor can be easily supplied to and taken out from the bearing portion, and in the invention according to the fourth aspect, the operation mechanism which continuously or intermittently runs the polishing belt and the positioning portion which is capable of pressing the polishing belt against the rotor are included in the polishing mechanism portion In the fifth aspect of the present invention, the drive belt is disposed at the drive position where the drive belt can be brought into elastic contact with the upper outer circumferential surface of the rotor, and the polishing belt is disposed at the polishing position where the lower outer circumferential surface of the rotor is polished, so that the elastic contact operation of the drive belt of the rotation drive mechanism section that rotates the rotor and the pressure-contact operation of the polishing belt can be prevented from interfering with each other, the winding angle of the drive belt with respect to the outer circumferential surface of the rotor can be increased, the rotational drive of the rotor by the drive belt can be accurately performed, and the outer circumferential surface of the rotor can be polished satisfactorily.
In the sixth aspect of the invention, the rotation driving mechanism includes a pair of winding contact rollers that bring the driving belt into winding contact with the outer peripheral surface of the rotor at the driving position, an elastic pressing roller that elastically presses the driving belt against the outer peripheral surface of the rotor, and a belt elastic pressing and absorbing mechanism that elastically presses the elastic pressing roller and absorbs slack of the driving belt generated between the pair of winding contact rollers when the driving belt is separated from the outer peripheral surface of the rotor at the retracted position, so that the winding angle of the driving belt with respect to the outer peripheral surface of the rotor can be increased, the rotation driving of the rotor by the driving belt and the running of the driving belt can be smoothly performed, and the outer peripheral surface of the rotor can be polished well, further, in the invention according to the seventh aspect, the rotation driving mechanism section includes a driving motor that drives the driving belt and a driving roller that is rotated by the driving motor, and the driving belt is wound and arranged between the driving roller and the pair of winding contact rollers, and the retracting mechanism section is configured to cause the rotation driving mechanism section to perform retracting operation from the driving position to the retracted position around a rotation axis of the driving roller by means of an up-and-down swinging cylinder and a gear mechanism, so that the structure of the retracting mechanism section can be simplified, and the retracting operation from the driving position to the retracted position can be smoothly performed, and further, in the invention according to the eighth aspect, the tilt angle adjusting mechanism is configured to include a rotation adjusting mechanism that is capable of rotationally adjusting the rotation driving mechanism section around a rotation axis, the rotating shaft has a rotating axis orthogonal to the rotation axis of the driving roller, so that the structure of the inclination angle adjusting mechanism can be simplified, the angle formed by the running direction of the driving belt and the orthogonal direction orthogonal to the rotation axis of the rotor can be adjusted to a predetermined inclination angle, the rotor can be smoothly rotated by adjusting the thrust, one end of the shaft of the rotor can be accurately abutted to the positioning portion, and the outer peripheral surface of the rotor can be well ground.
Drawings
Fig. 1 is an overall front sectional view of an embodiment of the present invention.
Fig. 2 is an overall plan view of an embodiment of the present invention.
Fig. 3 is a partial side sectional view of an embodiment of the present invention.
Fig. 4 is a partially enlarged front sectional view of an embodiment of the present invention.
FIG. 5 is an enlarged partial side sectional view of an embodiment of the present invention.
Fig. 6 is a partially enlarged plan view of an embodiment of the present invention.
Fig. 7 is a partial front sectional view of an embodiment of the present invention.
Fig. 8 is a partially enlarged front sectional view of an embodiment of the present invention.
Fig. 9 is an explanatory perspective view of an embodiment of the present invention.
Fig. 10 is an explanatory perspective view of an embodiment of the present invention.
Description of the reference numerals
R: a rotor; s: a shaft; t: a grinding belt; a: a rotor support mechanism part; a. the1: a bearing portion; b: a rotation driving mechanism section; b is1: a drive belt; b is2: a winding contact roller; b is3: a roller for elastic pressing; b is4: a belt elastic pressing absorbing mechanism; b isM: a motor for driving; b isR: a drive roller; bd: the running direction; b isR0: a rotation axis; c: a retreat mechanism section; c1: an air cylinder for up-and-down swinging; c2: a gear mechanism; d: a grinding mechanism section; d1: a belt running mechanism; d2: a crimping mechanism; e: an inclination angle adjusting mechanism; e1: a rotating shaft; e2: a rotation adjustment mechanism; e10: a rotational axis; f: a positioning part; g: an outer peripheral surface; gU: an upper peripheral surface; gD: a lower peripheral surface; k: a drive position; l: a retreat position; r0: a rotation axis; nd: an orthogonal direction; q: a grinding position; θ: and (4) inclining the angle.
Detailed Description
Fig. 1 to 10 show an embodiment of the present invention, and as shown in fig. 1, 2, and 7, the present invention is roughly divided into a rotor support mechanism a including a pair of opposing V-shaped bearing portions a capable of rotatably supporting both end portions of a shaft S of a rotor R of a motor, a rotation drive mechanism B, a retraction mechanism C, and a grinding mechanism D, and is configured to include1/A1The rotation driving mechanism section B includes an endless driving belt B which elastically contacts the outer peripheral surface G of the rotor R to rotate the rotor R1The retraction mechanism C causes the rotation drive mechanism B to drive the belt B1The driving position K contacting with the rotor R is retreated to the driving belt B1And a retreating operation of separating from the retreated position L of the rotor R, wherein the grinding mechanism D comprises a grinding belt T for grinding the outer peripheral surface G of the rotor R.
In this case, as shown in fig. 1, 2, and 6, the drive belt B of the rotary drive mechanism B can be driven by the tilt angle adjustment mechanism E and the positioning portion F1And the running directions Bd andthe axis of rotation R of the rotor R0The angle formed by the orthogonal direction Nd is adjusted to a predetermined inclination angle θ, and the positioning portion F abuts against one end portion of the shaft S of the rotor R.
In this case, as shown in fig. 1 and 2, a belt running mechanism D for continuously or intermittently running the polishing belt T is provided in the polishing mechanism section D1And a pressure-bonding mechanism D capable of pressure-bonding the polishing tape T to the outer peripheral surface G of the rotor R2。
In this case, as shown in fig. 4 and 5, the drive belt B is provided1An upper outer peripheral surface G disposed on the rotor RUThe polishing tape T is disposed on the lower outer peripheral surface G of the rotor R at the driving position K in elastic contact therewithDAt the polishing position Q where polishing is performed.
In this case, as shown in fig. 1, 4, 7, and 9, the rotary drive mechanism B is configured to include a pair of winding contact rollers B2/B2Roller B for elastic pressing3And a belt elastic pressing absorbing mechanism B4The pair of winding contact rollers B2/B2Driving the driving belt B at the driving position K1The elastic pressing roller B is wound and contacted with the outer peripheral surface G of the rotor R at a winding angle gamma3Capable of driving the belt B1Elastically pressing the outer peripheral surface G of the rotor R, and the belt elastic pressing and absorbing mechanism B4Elastic pressing roller B3And passes through the roller B for elastic pressing3To raise the drive belt B1To absorb the drive belt B1A pair of winding contact rollers B spaced apart from the outer peripheral surface G of the rotor R at the retreat position L2/B2Drive belt B generated therebetween1The relaxation of (2).
In this case, as shown in fig. 1, 2, and 7, the rotation driving mechanism B includes a driving belt B for driving the driving belt B1Motor B for drivingMAnd a motor B for drivingMDrive roller B for rotationRDriving belt B1Is wound around the driving roller BRAnd the above pairWinding contact roller B2/B2The above-mentioned retreating mechanism part C is formed by a cylinder C for up-and-down swinging1And a gear mechanism C2The roller B is driven by the rotation driving mechanism BROf the axis of rotation BR0The retraction operation from the drive position K to the retraction position L is performed as a center.
In this case, as shown in fig. 1 and 2, the tilt angle adjusting mechanism E includes a rotation adjusting mechanism E2Said rotation regulating mechanism E2Can rotate the shaft E1The rotation driving mechanism part B is adjusted to rotate by the center, and the rotating shaft E1Having and driving roller BROf the axis of rotation BR0Orthogonal axes of rotation E10。
In this case, as shown in fig. 1, 2, 4, 5, and 10, the rotor support mechanism a includes a support base 2 erected on the machine body 1, a guide key member 3 attached to the support base 2 in a direction orthogonal to the polishing tape T, and a pair of opposed V-shaped bearing portions a formed by screwing 4 the guide key member 3 to the support base 21/A1Mounted to be freely position-adjustable in the bearing portion A1/A1The V-shaped receiving surface 5/5 is provided so as to be able to rotatably support both ends of the shaft S of the rotor R of the motor, and in this case, the bearing portion a is provided1/A1The V-shaped receiving surface 5/5 is provided with a hard material 5a/5a of a diamond material or other hard material, and the pair of opposed V-shaped bearing parts A are fitted to each other by the guide key member 31/A1The position adjustment is performed so as to be able to cope with the length, size, etc. of the shaft S of the rotor R of the motor.
In this case, as shown in fig. 1 and 3, the rotation driving mechanism B is configured such that the pair of winding contact rollers B are disposed on the swing body 62/B2Elastic pressing and absorbing mechanism B4Elastic pressing roller B3And a driving roller BRAnd a pair of winding contact rollers B for winding them2/B2Roller B for elastic pressing3And a driving rollerBRA drive belt B wound around the loop1。
In this case, as shown in fig. 1 and 2, the retraction mechanism C, the tilt angle adjustment mechanism E, and the rotation adjustment mechanism E are provided2On the horizontal surface 1a of the machine body 1, according to the rotation axis E1About an axis of rotation E10A rotary table 7 is rotatably adjusted around the center, a screw 8 for fixing the rotary table 7 to the machine body 1 is provided, a mounting table 9 is mounted on the rotary table 7 by a screw 9B, and a driving motor B of the rotary driving mechanism B is mounted on the mounting table 9MThe shaft 10 is supported by a shaft holder, and a driving motor B is connected by a joint 11MOn the other hand, as shown in fig. 1, 2 and 7, the cylinder C for vertical oscillation is attached by an attachment piece 9a1A vertical moving member 12 mounted on the mounting table 9 and vertically slidable via a guide 12a and a slide portion 12b, and a gear mechanism C mounted on the rotary shaft 102Pinion C2AThe shaft bracket is rotatably mounted on the vertical moving member 12 along the vertical direction with a pinion C2AEngaged rack C2BIn the pinion gear C2AA swing body 6 is attached to the boss portion, and the drive roller B is attached to the rotary shaft 10RThe retraction mechanism C is configured to be vertically swung by the cylinder C1And a gear mechanism C2To drive roller BROf the axis of rotation BR0A retreating action from the driving position K to the retreating position L is performed as a center, and the driving motor B is used for drivingMBy means of a rotating shaft 10 and a drive roller BRCirculation driving belt B1In the positioning part F, the positioning table 13 is mounted on the support table 2 by the screw 13a according to the guide key member 3 so as to be adjustable in position, and the stop pin 14 is provided on the positioning table 13 so as to be adjustable in advance and retreat, as shown in fig. 6, by the drive belt B of the rotary drive mechanism B1And the rotational axis R of the rotor R0Thrust P shown in the figure generated by inclination angle theta formed by orthogonal direction Nd makes rotor R in bearing part A1/A1Up-moved to make one of the axes S of the rotors RThe end part abuts against the positioning part F, thereby configuring the rotor R at the bearing part A1/A1The positioning is free.
In this case, as shown in fig. 3, the elastic pressing roller B is provided3And a belt elastic pressing absorbing mechanism B4In the above-mentioned swing body 6, an elastic pressing cylinder 15 is attached, an elastic pressing member 16 is provided to be slidable vertically via a guide 16a and a sliding portion 16B, and an elastic pressing roller B is attached to the elastic pressing member 163As shown in fig. 4, at the driving position K, the roller B is configured to be elastically pressed3Will drive belt B1Elastically pressed against the outer peripheral surface G of the rotor R and configured to pass through an elastic pressing roller B as shown in FIG. 73To lift the drive belt B1To absorb the drive belt B1A pair of winding contact rollers B spaced apart from the outer peripheral surface G of the rotor R at the retreat position L2/B2Between them to generate a drive belt B1The relaxation of (2).
In this case, as shown in fig. 1 and 2, the belt running mechanism D of the polishing mechanism D is provided1Wherein a full-size roll 17 around which a polishing tape T is wound is attached to one side of the machine body 1, an unwinding motor 17a for unwinding the full-size roll 17 is disposed, a winding roll 18 and a grip roll 19 are disposed on the other side of the machine body 1, a winding motor 20 for rotating the winding roll 18 is attached to the machine body 1, the polishing tape T unwound from the full-size roll 17 is continuously or intermittently wound by the winding roll 18 via a guide roll 21/22 and the rotor support mechanism A and is conveyed, and the pressure bonding mechanism D is provided2As shown in fig. 4, 5, 6 and 8, the pair of V-shaped bearing portions a facing each other are formed in the support base 2 by the guide key member 31/A1The receiving member 23 is mounted by a screw 23a so as to be adjustable in position, the pressure contact member 24 is vertically movable above the receiving member 23 via guide pins 23c/23c, a pressure contact spring 24b and guide holes 24a/24a, an arc-shaped pressure contact surface 24c is formed on the upper surface of the pressure contact member 24, a stopper protrusion 24d is formed on the pressure contact member 24, and a stopper abutting against the pressure contact member 24 is mounted on the receiving member 23As shown in fig. 4 and 8, the upper limit stopper 23B of the movable protrusion 24d is configured to pass through the elastic pressing roller B3Will drive belt B1And the upper peripheral surface G of the rotor RUElastically contacting with the lower outer peripheral surface G of the rotor R via the polishing tape T by the pressing surface 24c of the pressing member 24 and the spring pressure of the pressing spring 24bDThe pressure bonding is performed to obtain the polishing pressure of the polishing tape T against the outer peripheral surface G of the rotor R.
In this case, the abrasive tape T is formed by coating or bonding fixed abrasive grains of a predetermined particle size such as alumina, chromium oxide, silicon carbide, diamond, or the like on a base material such as a polyester film, a metal, a cover cloth, a foam film, or a flocked fabric. In addition, there are cases where a dry polishing structure using a polishing tape T having a structure in which abrasive grains are fixed to a base material without using a lubricant, a wet polishing structure using a polishing tape having a structure in which abrasive grains are fixed to a base material and polishing is performed while supplying a lubricant, or a wet polishing structure using a woven fabric, a nonwoven fabric, a foamed film, or a flocked fabric to which fixed abrasive grains are not fixed as a polishing tape T and supplying a polishing agent containing free abrasive grains.
Since this embodiment has the above-described configuration, the rotational driving mechanism B is retracted to the drive belt B by the retraction mechanism C as shown in fig. 71The retreating operation from the retreated position L of the rotor R is carried out by manually or automatically placing both ends of the shaft S of the rotor R of the motor on a pair of opposed V-shaped bearing parts A of a rotor support mechanism A1/A1Rotatably supported, respectively, and as shown in FIG. 1, the rotation driving mechanism B drives the belt B1Is separated from the retreating position L of the rotor R to the driving belt B1The opposite action of the driving position K contacting with the rotor R rotates the annular driving belt B of the driving mechanism part B1The rotor R is rotated by elastically contacting with the outer peripheral surface G of the rotor R, and the driving belt B of the driving mechanism part B is rotated1The rotor R is rotated to grind the outer peripheral surface G of the rotor R by the grinding tape T of the grinding mechanism D, and thus, a pair of opposed V-shaped bearing portions a in the rotor support mechanism a are realized1/A1Since both ends of the shaft S of the rotor R are rotatably supported to grind the outer peripheral surface G of the rotor R, the outer peripheral surface G of the rotor R can be ground with high concentricity between the outer peripheral surface G of the rotor R and the outer peripheral surface of the shaft S, and the grinding is performed by a pair of opposing V-shaped bearing portions a in the rotor support mechanism portion a1/A1An endless drive belt B for rotatably supporting both ends of a shaft S of a rotor R and for rotating a drive mechanism B1The outer peripheral surface G of the rotor R is ground by the grinding belt T of the grinding mechanism portion D by rotating the rotor R in elastic contact with the outer peripheral surface G of the rotor R, so that vibration of the rotor R due to rotation can be suppressed, the outer peripheral surface G of the rotor R can be ground with good roundness and surface roughness, the outer peripheral surface G of the rotor R can be ground with high precision, the rotor R can be disposed on the stator of the motor with a predetermined gap therebetween with high precision, damage to the rotor R due to gripping can be prevented without gripping the outer peripheral surface G of the rotor R and the shaft S, and the rotor R can be easily attached and detached, the attachment and detachment including the supply and removal of the rotor R can further improve the efficiency of the grinding of the rotor R.
In this case, as shown in fig. 1, 2, and 6, the configuration includes a tilt angle adjusting mechanism E capable of adjusting the drive belt B of the rotary drive mechanism B and a positioning portion F1And the rotational axis R of the rotor R0The angle formed by the orthogonal direction Nd is adjusted to a predetermined inclination angle theta, and the positioning part F is abutted to one end part of the shaft S of the rotor R, so that the positioning part F is driven by the driving belt B1And the rotational axis R of the rotor R0Thrust P generated by inclination angle θ formed in orthogonal direction Nd makes one end of shaft S of rotor R abut against positioning portion F, and rotor R can be positioned at bearing portion a1/A1The positioning structure of the rotor R can be simplified, and the capacity can be increasedEasily supply the rotor R to the bearing part A1/A1And from A1/A1In this case, as shown in fig. 1, 2 and 3, the polishing mechanism section D includes a belt running mechanism D for continuously or intermittently running the polishing belt T1And a pressure-bonding mechanism D capable of pressure-bonding the polishing tape T to the outer peripheral surface G of the rotor R2Therefore, the outer peripheral surface G of the rotor R can be polished with high precision by the running operation and the pressing operation of the polishing tape T, and in this case, the drive tape B is driven as shown in fig. 41An upper outer peripheral surface G disposed on the rotor RUThe polishing tape T is disposed on the lower outer peripheral surface G of the rotor R at the driving position K in elastic contact therewithDAt the grinding position Q for grinding, the drive belt B of the rotary drive mechanism B for rotating the rotor R can be avoided1The elastic contact action of the belt (B) and the pressing action of the abrasive belt (T) interfere with each other, and the drive belt (B) can be enlarged1The passing of the driving belt B can be accurately performed with respect to the winding angle gamma of the outer peripheral surface G of the rotor R1The rotation of the rotor R can be driven to perform a good grinding process on the outer peripheral surface G of the rotor R.
In this case, as shown in fig. 1 and 4, the rotation driving mechanism B includes a pair of winding contact rollers B2/B2Roller B for elastic pressing3And a belt elastic pressing absorbing mechanism B4The pair of winding contact rollers B2/B2Driving the driving belt B at the driving position K1The elastic pressing roller B is wound and contacted with the outer peripheral surface G of the rotor R3Capable of driving the belt B1Elastically pressing the outer peripheral surface G of the rotor R, and the belt elastic pressing and absorbing mechanism B4Elastic pressing roller B3And absorb the driving belt B1A pair of winding contact rollers B spaced apart from the outer peripheral surface G of the rotor R at the retreat position L2/B2Drive belt B generated therebetween1So that the drive belt B can be increased1Relative to the outer peripheral surface of the rotor RG winding angle gamma, can smoothly pass through the driving belt B1The rotary drive of the rotor R and the drive belt B carried out1The outer peripheral surface G of the rotor R can be polished well, and in this case, as shown in fig. 1 and 7, the rotation driving mechanism B includes a belt for driving the drive belt B1Motor B for drivingMAnd a motor B for drivingMDrive roller B for rotationRAnd driving the belt B1Is wound around the driving roller BRA pair of winding contact rollers B2/B2The retreat mechanism part C is formed by a cylinder C for up-and-down swinging1And a gear mechanism C2The roller B is driven by the rotation driving mechanism BROf the axis of rotation BR0Since the retraction operation from the drive position K to the retraction position L is performed as a center, the structure of the retraction mechanism C can be simplified, and the retraction operation from the drive position K to the retraction position L can be performed smoothly, and in this case, the inclination angle adjustment mechanism E is configured to include a rotation adjustment mechanism E as shown in fig. 1, 2, and 62Said rotation regulating mechanism E2Can rotate the shaft E1The rotation driving mechanism part B is adjusted to rotate by the center, and the rotating shaft E1Having and driving roller BROf the axis of rotation BR0Orthogonal axes of rotation E10Therefore, the structure of the reclining angle adjusting mechanism E can be simplified, and the drive belt B can be driven1And the rotational axis R of the rotor R0The angle formed by the orthogonal direction Nd is adjusted to a predetermined inclination angle θ, so that the rotor R can be smoothly rotated by adjusting the thrust force P, and the one end portion of the shaft S of the rotor R can be accurately brought into contact with the positioning portion F, whereby the outer peripheral surface G of the rotor R can be satisfactorily ground.
The present invention is not limited to the above-described embodiments, and the structures of the rotor R, the shaft S, the polishing tape T, the rotor support mechanism a, and the bearing portion a are configured as1/A1A rotation drive mechanism part B and a drive belt B1And a winding contact roller B2/B2Roller B for elastic pressing3Elastic pressing and absorbing mechanism B4And a driving motor BMDrive roller BRRunning direction Bd, axis of rotation BR0A retreat mechanism part C, and a cylinder C for vertical swing1Gear mechanism C2Grinding mechanism D and belt running mechanism D1And a crimping mechanism D2An inclination angle adjusting mechanism E and a rotating shaft E1And a rotation adjusting mechanism E2Axis of rotation E10The structure of the positioning portion F and the design of the inclination angle θ can be appropriately changed.
In conclusion, the desired object can be sufficiently achieved.

Claims (8)

1. A rotor grinding method for a motor is characterized in that,
when the outer peripheral surface of the rotor of the motor is polished with a polishing tape,
the rotation driving mechanism is retreated to a retreating position where the driving belt is separated from the rotor by the retreating mechanism,
the two end parts of the shaft of the rotor are supported in a pair of opposite V-shaped bearing parts of a rotor supporting mechanism part in a rotatable manner,
the rotary drive mechanism unit is caused to perform a facing operation from a retracted position where the drive belt is separated from the rotor to a drive position where the drive belt is in contact with the rotor,
an endless drive belt of a rotation drive mechanism is brought into elastic contact with the outer peripheral surface of the rotor to rotate the rotor,
the rotor is rotated by a drive belt of the rotation drive mechanism to grind the outer peripheral surface of the rotor by a grinding belt of the grinding mechanism.
2. A rotor grinding device for a motor, characterized in that an outer peripheral surface of a rotor of the motor is ground with a grinding tape, the rotor grinding device for a motor comprising:
a rotor support mechanism portion including a pair of opposing V-shaped bearing portions capable of rotatably supporting both end portions of a shaft of the rotor;
a rotation driving mechanism unit including an endless driving belt that elastically contacts an outer peripheral surface of the rotor to rotate the rotor;
a retraction mechanism configured to cause the rotary drive mechanism to perform a retraction operation of retracting the drive belt from a drive position at which the drive belt is in contact with the rotor to a retraction position at which the drive belt is separated from the rotor; and
and a polishing mechanism section having a polishing tape for polishing the outer peripheral surface of the rotor.
3. The rotor grinding device for a motor according to claim 2, comprising:
an inclination angle adjusting mechanism capable of adjusting an angle formed by a running direction of a drive belt of the rotation driving mechanism and an orthogonal direction orthogonal to a rotation axis of the rotor to a predetermined inclination angle; and
and a positioning portion which abuts against one end of the shaft of the rotor.
4. The rotor grinding device for a motor according to claim 2 or 3,
the polishing mechanism includes:
a belt running mechanism that runs the polishing belt continuously or intermittently; and
and a pressure bonding mechanism capable of pressing the polishing belt to the outer peripheral surface of the rotor.
5. The rotor grinding apparatus for a motor according to claim 2,
the drive belt is disposed at the drive position capable of elastically contacting with the upper outer circumferential surface of the rotor,
the polishing tape is disposed at a polishing position where a lower outer peripheral surface of the rotor is polished.
6. The rotor grinding apparatus for a motor according to claim 2,
the rotation driving mechanism includes:
a pair of winding contact rollers for bringing the drive belt into winding contact with the outer peripheral surface of the rotor at the drive position;
an elastic pressing roller capable of elastically pressing the drive belt against the outer peripheral surface of the rotor; and
and a belt elastic pressing and absorbing mechanism which elastically presses the elastic pressing roller and absorbs the looseness of the driving belt generated between the pair of winding contact rollers due to the driving belt separating from the outer peripheral surface of the rotor at the retreat position.
7. The rotor grinding apparatus for a motor according to claim 6,
the rotation driving mechanism includes a driving motor for driving the driving belt and a driving roller rotated by the driving motor, the driving belt is wound and arranged between the driving roller and the pair of winding rollers, and the retracting mechanism causes the rotation driving mechanism to perform retracting operation from the driving position to the retracting position around a rotation axis of the driving roller by a vertically swinging cylinder and a gear mechanism.
8. The rotor grinding apparatus for a motor according to claim 3,
the inclination angle adjusting mechanism is constituted by a rotation adjusting mechanism that can rotationally adjust the rotary drive mechanism portion centering on a rotation shaft having a rotation axis orthogonal to the rotation axis of the drive roller.
CN202011376466.3A 2020-03-19 2020-11-30 Method and apparatus for grinding rotor of motor Active CN113492347B (en)

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Publication number Priority date Publication date Assignee Title
JP7041184B2 (en) 2020-03-19 2022-03-23 株式会社サンシン Rotor polishing method for motors and their equipment
JP7299203B2 (en) * 2020-10-16 2023-06-27 株式会社サンシン Method and apparatus for polishing convex spherical surface

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JPH0542472A (en) * 1991-08-13 1993-02-23 Yamaha Motor Co Ltd Belt polishing device
JP2006026800A (en) * 2004-07-15 2006-02-02 Nissan Motor Co Ltd Lapping device and lapping film
TW201208811A (en) * 2010-08-19 2012-03-01 Sanshin Co Ltd Substrate polishing method and device
CN102699794A (en) * 2011-03-25 2012-10-03 株式会社荏原制作所 Polishing apparatus and polishing method

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JPS5556451A (en) * 1978-10-19 1980-04-25 Nobukazu Hosogai Polishing device for cylindrical commutator for miniature dc motor
JP3404579B2 (en) * 1993-07-09 2003-05-12 株式会社サンシン Polishing device for both shafts
JP6445504B2 (en) * 2016-10-04 2018-12-26 株式会社サンシン Ball screw nut polishing equipment
JP7041184B2 (en) 2020-03-19 2022-03-23 株式会社サンシン Rotor polishing method for motors and their equipment

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Publication number Priority date Publication date Assignee Title
JPH0542472A (en) * 1991-08-13 1993-02-23 Yamaha Motor Co Ltd Belt polishing device
JP2006026800A (en) * 2004-07-15 2006-02-02 Nissan Motor Co Ltd Lapping device and lapping film
TW201208811A (en) * 2010-08-19 2012-03-01 Sanshin Co Ltd Substrate polishing method and device
CN102699794A (en) * 2011-03-25 2012-10-03 株式会社荏原制作所 Polishing apparatus and polishing method

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JP2022075785A (en) 2022-05-18

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