CN113492347B - Method and apparatus for grinding rotor of motor - Google Patents
Method and apparatus for grinding rotor of motor Download PDFInfo
- Publication number
- CN113492347B CN113492347B CN202011376466.3A CN202011376466A CN113492347B CN 113492347 B CN113492347 B CN 113492347B CN 202011376466 A CN202011376466 A CN 202011376466A CN 113492347 B CN113492347 B CN 113492347B
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- rotor
- belt
- peripheral surface
- outer peripheral
- driving
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- 230000002093 peripheral effect Effects 0.000 claims abstract description 95
- 238000003825 pressing Methods 0.000 claims description 49
- 238000005498 polishing Methods 0.000 claims description 48
- 238000004804 winding Methods 0.000 claims description 34
- 230000003746 surface roughness Effects 0.000 abstract description 3
- 239000000463 material Substances 0.000 description 7
- 239000006061 abrasive grain Substances 0.000 description 5
- 239000004744 fabric Substances 0.000 description 3
- 238000002788 crimping Methods 0.000 description 2
- 229910003460 diamond Inorganic materials 0.000 description 2
- 239000010432 diamond Substances 0.000 description 2
- 239000000314 lubricant Substances 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
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- WGLPBDUCMAPZCE-UHFFFAOYSA-N Trioxochromium Chemical compound O=[Cr](=O)=O WGLPBDUCMAPZCE-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 229910000423 chromium oxide Inorganic materials 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000004745 nonwoven fabric Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000007517 polishing process Methods 0.000 description 1
- 229920006267 polyester film Polymers 0.000 description 1
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 1
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Images
Classifications
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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—Processes or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
- H02K15/02—Processes or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Power Engineering (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
- Manufacturing Of Electrical Connectors (AREA)
- Grinding Of Cylindrical And Plane Surfaces (AREA)
Abstract
A rotor grinding method for a motor and a device thereof, which can grind the outer peripheral surface of a rotor with high concentricity between the outer peripheral surface of the rotor and the outer peripheral surface of a shaft, can restrain the vibration of the rotor along with the rotation, can grind the outer peripheral surface of the rotor with good roundness and surface roughness, and can grind 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 rotor 1 ) (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
Technical Field
The present invention relates to a method and an apparatus for polishing 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 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
In order to solve the above-described problems, the present invention according to a first aspect of the present invention provides a method for grinding a rotor for a motor, the method comprising, when grinding an outer peripheral surface of a rotor of the motor with a grinding belt, causing a retraction mechanism to perform a retraction operation of retracting a rotation drive mechanism to a retraction position at which a drive belt is separated from the rotor, rotatably supporting both end portions of a shaft of the rotor in a pair of opposed V-shaped bearing portions of a rotor support mechanism, respectively, causing the rotation drive mechanism to perform a facing operation from the retraction position at which the drive belt is separated from the rotor to a drive position at which the drive belt is in contact with the rotor, causing an annular drive belt of the rotation drive mechanism to elastically contact the outer peripheral surface of the rotor to rotate the rotor, and causing the drive belt of the rotation drive mechanism to rotate the rotor to grind the outer peripheral surface of the rotor with the grinding belt of the grinding mechanism.
In addition, according to a second aspect of the present invention, there is provided an apparatus for grinding a rotor of a motor, the apparatus being characterized in that an outer peripheral surface of the rotor of the motor is ground with a grinding tape, the apparatus 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: a tilt angle adjusting mechanism capable of adjusting an angle formed by an operation direction of a drive belt of the rotation driving mechanism and a direction orthogonal to a rotation axis of the rotor to a predetermined tilt angle; and a positioning portion that is in contact with one end portion of the shaft of the rotor, and the device according to a fourth aspect of the present invention is characterized in that the polishing mechanism 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 an 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, and the drive belt is wound and arranged between the drive roller and the pair of winding contact rollers, and the retraction mechanism section causes the rotation driving mechanism section to perform a retraction operation of retracting from the driving position to the retracted position around a rotation axis of the drive roller by a vertical swing cylinder and a gear mechanism, and wherein the tilt angle adjusting mechanism is configured by a rotation adjusting mechanism that is capable of rotationally adjusting the rotation driving mechanism section around a rotation axis that has 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 invention according to the first and second aspects, the rotation driving mechanism is caused to perform the retracting operation of retracting the rotation driving mechanism to the retracted position where the drive 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 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 drive belt is separated from the rotor to the driving position where the drive belt is in contact with the rotor, the annular drive belt of the rotation driving mechanism is elastically brought into contact with the outer peripheral surface of the rotor to rotate the rotor, the rotor is rotated by the drive belt of the rotation driving mechanism to grind the outer peripheral surface of the rotor by the grinding belt of the grinding mechanism, the rotor is supported by the pair of opposed V-shaped bearing portions of the rotor support mechanism so as to be rotatable at both end portions of the shaft of the rotor, and the outer peripheral surface of the rotor is ground, so that the outer peripheral surface of the rotor can be ground with high concentricity between the outer peripheral surface of the rotor and the outer peripheral surface of the shaft, and the rotor can be rotated by elastically contacting the annular drive belt of the rotation drive mechanism with the outer peripheral surface of the rotor, and the outer peripheral surface of the rotor is ground by the grinding belt of the grinding mechanism, so that the vibration of the rotor caused by the 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, and the rotor can be arranged on the stator of the motor with a predetermined gap therebetween with high precision, the rotor can be easily attached and detached, including supply and removal, without gripping the outer peripheral surface of the rotor or the shaft, thereby preventing damage to the rotor caused by the gripping, and further improving the efficiency of the grinding process of the rotor.
In addition, since the invention according to the third aspect is configured to include the reclining angle adjusting mechanism and the positioning portion, the inclination angle adjusting mechanism is capable of adjusting an angle formed by a running direction of a drive belt of the rotation driving mechanism portion and an orthogonal direction orthogonal to a rotation axis of the rotor to a predetermined inclination angle, the positioning portion is abutted to one end portion of a shaft of the rotor, therefore, by the thrust generated due to the inclination angle formed by the running direction of the drive belt and the orthogonal direction orthogonal to the rotation axis of the rotor, so that one end portion of the shaft of the rotor abuts against the positioning portion to be able to position the rotor at 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 addition, because in the invention described in the fourth aspect, the grinding mechanism section includes a running mechanism for continuously or intermittently running the grinding belt and a pressure-bonding mechanism capable of pressure-bonding the grinding belt to the outer peripheral surface of the rotor, therefore, the outer peripheral surface of the rotor can be polished with high precision by the running operation and the pressing operation of the polishing tape, and further, since, in the invention according to the fifth aspect, the drive belt is disposed at the drive position capable of elastically contacting 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, so that the elastic contact action of the driving belt of the rotary driving mechanism part for rotating the rotor and the pressing action of the grinding belt can be prevented from interfering with each other, the winding angle of the drive belt with respect to the outer peripheral surface of the rotor can be increased, the drive belt can accurately drive the rotor to rotate, and the outer peripheral surface of the rotor can be polished well.
In addition, in the invention described in the sixth aspect, since the rotation driving mechanism portion is configured to include 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 can elastically press the driving 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 driving belt generated between the pair of winding contact rollers due to the driving belt being separated from the outer peripheral surface of the rotor at the retreat position, 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 well ground, and since in the invention described in the seventh aspect, the rotation driving mechanism portion includes a driving motor that drives the driving belt and a driving roller that is rotated by the driving motor, and the driving roller is disposed between the driving roller and the pair of winding contact rollers, and the rotation driving mechanism portion is configured to be rotated from the retreat position to the retreat position by swinging up and down the evacuation gear, and the rotation axis of the rotation driving mechanism is configured to enable the rotation adjustment from the rotation axis of the rotation shaft, and the rotation mechanism is configured to be easily adjustable in the eighth aspect, the rotating shaft has a rotating axis orthogonal to the rotating 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 rotating axis of the rotor can be adjusted to a predetermined inclination angle, the rotor can be smoothly rotated by adjusting the thrust, one end part of the shaft of the rotor can be accurately abutted to the positioning part, 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. The 1 : a bearing portion; b: a rotation driving mechanism section; b is 1 : a drive belt; b is 2 : a winding contact roller; b is 3 : a roller for elastic pressing; b 4 : a belt elastic pressing absorbing mechanism; b is M : a motor for driving; b is R : a drive roller; bd: the running direction; b is R0 : a rotation axis; c: a retreat mechanism unit; c 1 : an air cylinder for up-and-down swinging; c 2 : a gear mechanism; d: a grinding mechanism section; d 1 : a belt running mechanism; d 2 : a crimping mechanism; e: an inclination angle adjusting mechanism; e 1 : a rotating shaft; e 2 : a rotation adjustment mechanism; e 10 : a rotational axis; f: a positioning part; g: an outer peripheral surface; g U : an upper peripheral surface; g D : a lower peripheral surface; k: a drive position; l: a retreat position; r 0 : 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 include 1 /A 1 The 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 R 1 The retraction mechanism C causes the rotation drive mechanism B to drive the belt B 1 The driving position K contacting with the rotor R is retreated to the driving belt B 1 And 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 F 1 And the rotational axis R of the rotor R 0 The 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 D 1 And a pressure-bonding mechanism D capable of pressure-bonding the polishing tape T to the outer peripheral surface G of the rotor R 2 。
In this case, as shown in fig. 4 and 5, the drive belt B is provided 1 An upper outer peripheral surface G disposed on the rotor R U The polishing tape T is disposed on the lower outer peripheral surface G of the rotor R at the driving position K in elastic contact therewith D At a 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 B 2 /B 2 Roller B for elastic pressing 3 And a beltElastic pressing and absorbing mechanism B 4 The pair of winding contact rollers B 2 /B 2 Driving the driving belt B at the driving position K 1 The elastic pressing roller B is wound and contacted with the outer peripheral surface G of the rotor R at a winding angle gamma 3 Capable of driving the belt B 1 Elastically pressing the outer peripheral surface G of the rotor R, and having an elastic pressing and absorbing mechanism B 4 Elastic pressing roller B 3 And passes through the roller B for elastic pressing 3 To raise the drive belt B 1 To absorb the drive belt B 1 A pair of winding contact rollers B separated from the outer peripheral surface G of the rotor R at the retreat position L 2 /B 2 Drive belt B generated therebetween 1 The relaxation of (3).
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 B 1 Motor B for driving M And a motor B for driving M Driving roller B for rotation R Driving belt B 1 Wound around the driving roller B R A pair of winding contact rollers B 2 /B 2 The retreating mechanism C is configured to pass through the cylinder C for vertical swing 1 And a gear mechanism C 2 The roller B is driven by the rotation driving mechanism B R Of the axis of rotation B R0 The 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 E 2 Said rotation regulating mechanism E 2 Can rotate the shaft E 1 The rotation driving mechanism part B is adjusted to rotate by the center, and the rotating shaft E 1 Having and driving roller B R Of (2) a rotation axis B R0 Orthogonal axis of rotation E 10 。
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 belt T, and a screw member 3 screwed into the support base 2 by the guide key member 3The nail 4 has a pair of opposed V-shaped bearing parts A 1 /A 1 Mounted to be freely position-adjustable in the bearing portion A 1 /A 1 The V-shaped receiving surfaces 5/5 are provided so as to be able to rotatably support both end portions of the shaft S of the rotor R of the motor, and in this case, are provided at the bearing portion A 1 /A 1 The V-shaped receiving surfaces 5/5 are respectively provided with a hard material 5a/5a made of industrial 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 3 1 /A 1 The 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 6 2 /B 2 Elastic pressing and absorbing mechanism B 4 Elastic pressing roller B 3 And a driving roller B R And a pair of winding contact rollers B between them 2 /B 2 Roller B for elastic pressing 3 And a driving roller B R A drive belt B wound around the loop 1 。
In this case, as shown in fig. 1 and 2, the retracting mechanism C, the tilt angle adjusting mechanism E, and the rotation adjusting mechanism E are provided 2 On the horizontal surface 1a of the machine body 1, according to the rotation axis E 1 About an axis of rotation E 10 A 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 9 M The shaft 10 is supported by a shaft holder, and a driving motor B is connected by a joint 11 M On the other hand, as shown in fig. 1, 2 and 7, the cylinder C for vertical swing is attached by an attachment piece 9a 1 A vertically movable 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 10 2 Pinion C 2A The shaft bracket is rotatably mounted on the vertical moving member 12 in the vertical directionAnd pinion C 2A Engaged rack C 2B In the pinion gear C 2A A swing body 6 is attached to the boss portion, and the drive roller B is attached to the rotary shaft 10 R The retraction mechanism C is configured to be vertically swung by the cylinder C 1 And a gear mechanism C 2 To drive roller B R Of (2) a rotation axis B R0 A retracting action for retracting from the driving position K to the retracting position L is performed as a center, and the motor B for driving is used M By means of a rotating shaft 10 and a drive roller B R Circulation driving belt B 1 In 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 B 1 And the rotational axis R of the rotor R 0 Thrust P shown in the figure generated by inclination angle theta formed by orthogonal direction Nd makes rotor R in bearing part A 1 /A 1 The rotor R is configured to move upward to abut one end of the shaft S of the rotor R against the positioning portion F, thereby forming the bearing portion A 1 /A 1 The positioning is free.
In this case, as shown in FIG. 3, the elastic pressing roller B is provided 3 And a belt elastic pressing absorbing mechanism B 4 In 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 16 3 As shown in fig. 4, at the driving position K, the roller B is configured to be elastically pressed 3 Will drive the belt B 1 Elastically 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. 7 3 To lift the drive belt B 1 To absorb the drive belt B 1 A pair of winding contact rollers B spaced apart from the outer peripheral surface G of the rotor R at the retreat position L 2 /B 2 Between them to generate a drive belt B 1 The relaxation of (2).
In addition, in this case, the first and second,as shown in fig. 1 and 2, a belt running mechanism D in the polishing mechanism section D 1 Wherein a full-size roll 17 around which a polishing tape T is wound is mounted on one side of the machine body 1, an unwinding motor 17a for setting the unwinding 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 mounted on 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 guide rolls 21/22 and the rotor support mechanism A and is conveyed, and the pressure bonding mechanism D is provided 2 As 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 3 1 /A 1 The 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 by a guide pin 23c/23c, a pressure contact spring 24B and a guide hole 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 an upper limit stopper 23B abutting against the stopper protrusion 24d of the pressure contact member 24 is mounted on the receiving member 23, and as shown in fig. 4 and 8, the elastic pressing roller B is configured by the elastic pressing roller B 3 Will drive the belt B 1 And the upper peripheral surface G of the rotor R U Elastically 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 24b D The 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. 7 1 The 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 A 1 /A 1 Rotatably supported, respectively, and the rotation driving mechanism B drives the belt B from the drive side as shown in FIG. 1 1 Is separated from the retreating position L of the rotor R to the driving belt B 1 The opposite action of the driving position K contacting with the rotor R rotates the annular driving belt B of the driving mechanism part B 1 The 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 rotated 1 The rotor R is rotated to grind the outer peripheral surface G of the rotor R by the grinding tape T of the grinding mechanism portion D, and therefore, a pair of opposed V-shaped bearing portions A in the rotor support mechanism portion A are realized 1 /A 1 Since 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 a 1 /A 1 An endless driving belt B for rotatably supporting both ends of the shaft S of the rotor R and for rotating the driving mechanism B 1 The outer peripheral surface G of the rotor R is ground by the grinding tape T of the grinding mechanism 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, and the rotor R can be disposed on the motor with a predetermined gap therebetween with high precisionThe stator according to (1) can prevent damage to the rotor R caused by gripping without gripping the outer peripheral surface G of the rotor R and the shaft S, and can facilitate attachment and detachment of the rotor R, including supply and removal of the rotor R, thereby further improving the efficiency of grinding 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 F 1 And the rotational axis R of the rotor R 0 The 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 B 1 And the rotational axis R of the rotor R 0 Thrust 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 a 1 /A 1 The positioning structure of the rotor R can be simplified, and the rotor R can be easily supplied to the bearing portion A 1 /A 1 And from A 1 /A 1 In 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 T 1 And a pressure-bonding mechanism D capable of pressure-bonding the polishing tape T to the outer peripheral surface G of the rotor R 2 Therefore, 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. 4 1 An upper outer peripheral surface G disposed on the rotor R U The polishing tape T is disposed on the lower outer peripheral surface G of the rotor R at the driving position K in elastic contact therewith D At the polishing position Q where polishing is performed, the drive belt B of the rotation drive mechanism B for rotating the rotor R can be avoided 1 The 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 enlarged 1 The winding angle gamma of the rotor R with respect to the outer peripheral surface G can be correctedSurely proceed by driving the belt B 1 The rotation of the rotor R can be driven to perform a satisfactory polishing 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 B 2 /B 2 Roller B for elastic pressing 3 And a belt elastic pressing absorbing mechanism B 4 The pair of winding contact rollers B 2 /B 2 Driving the driving belt B at the driving position K 1 The elastic pressing roller B is wound and contacted with the outer peripheral surface G of the rotor R 3 Capable of driving the belt B 1 Elastically pressing the outer peripheral surface G of the rotor R, and the belt elastic pressing and absorbing mechanism B 4 Elastic pressing roller B 3 And absorb the driving belt B 1 A pair of winding contact rollers B spaced apart from the outer peripheral surface G of the rotor R at the retreat position L 2 /B 2 Drive belt B generated therebetween 1 Can be increased, therefore, the drive belt B can be increased 1 The winding angle gamma of the rotor R relative to the outer peripheral surface G can be smoothly driven by the driving belt B 1 The rotary drive of the rotor R and the drive belt B carried out 1 The 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 B 1 Motor B for driving M And a motor B for driving M Drive roller B for rotation R And driving the belt B 1 Is wound around the driving roller B R A pair of winding contact rollers B 2 /B 2 The above-mentioned retreating mechanism C is constituted by a cylinder C for vertical swing 1 And a gear mechanism C 2 The roller B is driven by the rotation driving mechanism B R Of the axis of rotation B R0 Since 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, as shown in fig. 1, 2, and 6,the tilt angle adjusting mechanism E includes a rotation adjusting mechanism E 2 Said rotation regulating mechanism E 2 Can rotate the shaft E 1 The rotation driving mechanism part B is adjusted to rotate by the center, and the rotating shaft E 1 Having and driving roller B R Of the axis of rotation B R0 Orthogonal axes of rotation E 10 Therefore, the structure of the reclining angle adjusting mechanism E can be simplified, and the drive belt B can be driven 1 And the rotational axis R of the rotor R 0 The 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 as 1 /A 1 A rotation drive mechanism part B and a drive belt B 1 And a winding contact roller B 2 /B 2 Roller B for elastic pressing 3 Elastic pressing and absorbing mechanism B 4 And a driving motor B M Drive roller B R Running direction Bd, axis of rotation B R0 A retreat mechanism part C, and a cylinder C for vertical swing 1 And a gear mechanism C 2 Grinding mechanism section D and belt running mechanism D 1 And a crimping mechanism D 2 An inclination angle adjusting mechanism E and a rotating shaft E 1 And a rotation adjusting mechanism E 2 Axis of rotation E 10 The 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 except the commutator portion and the shaft portion is ground with a driven grinding belt,
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 by a pair of opposite V-shaped bearing parts of a rotor supporting mechanism part to be respectively and freely rotatable,
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 an upper 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 lower 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 the outer peripheral surface of a rotor of the motor except a commutator portion and a shaft portion is ground by a driven grinding belt, 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, respectively;
a rotation driving mechanism unit including an endless driving belt that elastically contacts an upper outer circumferential 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 during grinding to a retraction position at which the drive belt is separated from the rotor during non-grinding; and
and a polishing mechanism unit having a polishing tape for polishing the outer peripheral surface of the lower part of the rotor.
3. The rotor grinding device for a motor according to claim 2, comprising:
a tilt angle adjusting mechanism capable of adjusting an angle formed by an operation direction of a drive belt of the rotation driving mechanism and a direction orthogonal to a rotation axis of the rotor to a predetermined tilt 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 device for a motor according to claim 2 or 3,
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 device for a motor according to claim 2 or 3,
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 device for a motor according to claim 2 or 3,
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 7,
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.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2020049850A JP7041184B2 (en) | 2020-03-19 | 2020-03-19 | Rotor polishing method for motors and their equipment |
| JP2020-049850 | 2020-03-19 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113492347A CN113492347A (en) | 2021-10-12 |
| CN113492347B true CN113492347B (en) | 2022-12-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011376466.3A Active CN113492347B (en) | 2020-03-19 | 2020-11-30 | Method and apparatus for grinding rotor of motor |
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| JP (2) | JP7041184B2 (en) |
| CN (1) | CN113492347B (en) |
Families Citing this family (2)
| 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 |
Citations (4)
| 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 |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
-
2020
- 2020-03-19 JP JP2020049850A patent/JP7041184B2/en active Active
- 2020-11-30 CN CN202011376466.3A patent/CN113492347B/en active Active
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2022
- 2022-03-09 JP JP2022036414A patent/JP7381633B2/en active Active
Patent Citations (4)
| 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| JP7041184B2 (en) | 2022-03-23 |
| JP7381633B2 (en) | 2023-11-15 |
| JP2022075785A (en) | 2022-05-18 |
| JP2021146471A (en) | 2021-09-27 |
| CN113492347A (en) | 2021-10-12 |
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