CN100349367C - Method for producing tooth of linear step motor - Google Patents
Method for producing tooth of linear step motor Download PDFInfo
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- CN100349367C CN100349367C CNB031213332A CN03121333A CN100349367C CN 100349367 C CN100349367 C CN 100349367C CN B031213332 A CNB031213332 A CN B031213332A CN 03121333 A CN03121333 A CN 03121333A CN 100349367 C CN100349367 C CN 100349367C
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- step motor
- linear step
- flute profile
- tooth
- work piece
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Abstract
The present invention relates to a manufacturing method of tooth forms on the stator/rotator of a linear step motor. Tiny tooth forms need to be carved on the stator/rotator, so that the linear step motor can move in small displacement, but the traditional milling and etching methods have the disadvantages of high cost, etc. In the present invention, the tooth forms on the motor stator are generated in the process of sand blasting, so the method has the advantages of favorable efficiency and environmental protection because of convenient manufacture, changeable elasticity of the tooth forms, and no pollution in the etching process.
Description
Technical field
The present invention relates to a kind of stator of linear step motor or the manufacture method and the tooth type structures of the flute profile on the mover.
Background technology
Linear step motor is widely used in industrial circle, and for example: equipment such as brilliant first pick-and-place machine, the brilliant first machines of high speed have used linear step motor to drive all.Linear step motor all is to produce running by excitatory between mover and stator, in order to reach the requirement of small feeding, no matter on the mover or stator of linear step motor, all need depict various fine groovings, what make stator and mover forms tooth type structures in abutting connection with part.Fig. 6 is a kind of schematic diagram of linear step motor commonly used, comprise iron core 82 and coil 81 on the figure neutral line stepper motor, coil 81 twines around unshakable in one's determination 82, unshakable in one's determination 82 are provided with tooth 821, and below unshakable in one's determination 82, have a stator 83 and unshakable in one's determination 82 to cooperate, the tooth 821 that has on the stator 83 on tooth 831 and unshakable in one's determination 82 matches, and aforementioned unshakable in one's determination 82 and coil 81 owing to can move with respect to stator 83, generally be collectively referred to as the mover of motor.Because use the manufacture of mill teeth, the tooth 821 in this linear step motor 8 and the profile of tooth 831 are rectangular.And the profile of the tooth 821 of rectangle and tooth 831 can cause when between mover and stator one micro displacement only taking place, and the magnetic line of force but takes place to change rapidly, and causes the speed ripple of motor.
Comprehensive, the tooth type structures of existing linear step motor utilizes modes such as mill teeth or etching to make, and is no matter be that mill teeth or etch recipe all have certain disappearance, comprehensively as follows respectively:
One, the shortcoming of mill teeth:
1. processing is difficult for: be the displacement in reduction per step of stepper motor, improve the precision of stepper motor, teeth groove is generally all very thin, so cutter is difficult for making and expensive, cutter life weak point, the speed of processing is slow, and the processing cost height;
2. flute profile changes difficulty: because cutter processing can only orthoscopic be processed, can't produce the flute profile of other special shape, to reduce the speed ripple;
3. precision problem: cutter can constantly wearing and tearing in using, precision is wayward;
Two, etched shortcoming:
1. processing procedure complexity: need cause manufacturing cost high through cleaning, egative film development, exposure, etching or the like multiple tracks step;
2. high pollution: etched medicament contaminative height, cause the pollution of environment easily.
Summary of the invention
Main purpose of the present invention is to provide a kind of method for making of flute profile of linear step motor of innovation, by method of the present invention, simplifies the manufacturing of linear step motor and reduces cost, and meet the feature of environmental protection.
Another object of the present invention is to provide a kind of method for making of flute profile of linear step motor of innovation, make the flute profile of linear step motor can conveniently manufacture slick and sly shape flute profile or stepped flute profile by method of the present invention, strength variable gradient during with the displacement of reduction linear step motor, the speed ripple of minimizing linear step motor.
For achieving the above object, the technical solution used in the present invention is as follows:
A kind of flute profile manufacture method of linear step motor, one shield is placed in work piece top, and shield is provided with the hole, and work piece is in order to the mover of formation linear step motor or the magnetic conductive material of stator, utilize the high-speed solid particle to pass the surface that work piece is collided in the hole on the shield, make the work piece surface produce the structure of groove and tooth.
Shield on the work piece is through changing, and obtaining different holes, and through colliding the second time of high-speed solid particle, to form stair-stepping flute profile, reduces the speed ripple of linear step motor.
The impact direction of high-speed solid particle to form slick and sly shape flute profile, reduces the speed ripple of linear step motor with respect to impact direction tool one gradient of work piece.
A kind of tooth type structures of linear step motor, the flute profile on its stator or the mover are made according to above-mentioned any one flute profile manufacture method.
The flute profile manufacture method of the mover of linear step motor of the present invention and stator is used the moulding of sandblast mode.Sandblast among the present invention is to utilize solid particle at a high speed, impacts the surface of mover or stator, covers the surface of not impacted and produces the flute profile of wanting by the mould of similar cover shape.Wherein solid particle generally uses the metal of high rigidity, or made as nonmetal crystallizations such as aluminium oxide, carborundum.
Use beneficial effect of the present invention to be:
Because the problem of environmental pollution that this method does not have engraving method to be caused, what relate to is the stator of linear step motor or the manufacture method of the flute profile on the mover, because sandblast processing has environmental protection and the good advantage of efficient, can reach the manufacturing process of simplifying linear step motor simultaneously and reduce cost, and meet the feature of environmental protection; And can be designed to two-dimensional shapes arbitrarily because cover the mould of usefulness, and can produce multi-level linear step motor flute profile via fit for several times; So also can utilize different sandblast moulds for special flute profile, change the direction of sandblast even, and through twice or repeatedly sandblast and obtaining.Thus, the characteristic of motor can significantly be improved because of comparatively level and smooth flute profile, minimizing speed ripple and increase resolution, and its cost also reduces because use costliness and consumptive cutter, and stepped flute profile and slick and sly shape flute profile can obviously be improved the speed ripple of linear step motor, all obviously improve the shortcoming of prior art.
The present invention mainly is that the processing procedure of employing sandblast produces the flute profile on stator or the mover, advantages such as the method is easily manufactured because of having, flute profile elasticity, and do not have the contaminative of etch process, the flute profile that can be widely used in various linear step motors is made.
Description of drawings
Fig. 1 is the schematic diagram of the flute profile manufacture method of linear step motor of the present invention;
Fig. 2 is the schematic diagram of the made a kind of linear step motor of the flute profile manufacture method of using linear step motor of the present invention;
Fig. 3 is a kind of processing procedure schematic diagram of the flute profile manufacture method of linear step motor of the present invention;
Fig. 4 is the another kind of processing procedure schematic diagram of the flute profile manufacture method of linear step motor of the present invention;
Fig. 5 is a power comparison diagram of three kinds of different linear step motor flute profile motors;
Fig. 6 is a kind of schematic diagram of existing linear step motor.
1 work piece, 2 shields
2a shield 2b shield
2c shield 2d shield
5 solid particles, 8 linear step motors
11 grooves, 12 tooth 12a tooth 12b teeth
12c tooth 12d tooth 12e tooth 21 holes
81 coils, 82 83 stators, 821 teeth unshakable in one's determination
822 teeth, 831 teeth, 832 teeth
Embodiment
For further understanding feature of the present invention and technology contents, please be in detail with reference to following about explanation of the present invention and accompanying drawing.
Fig. 1 is the schematic diagram of the flute profile manufacture method of linear step motor of the present invention, shield 2 is placed in the top of work piece 1, shield 2 is provided with the hole 21 that tolerable solid particle 5 passes through, and pressurized equipment 4 provides solid particle 5 kinetic energy, makes the surface of solid particle 5 high speed impact work pieces 1; Because the surface of work piece 1 some do not have crested plate 2 to cover, and solid particle 5 by the hole 21 of shield 2 surface of high speed impact work piece 1, make a part of surface of work piece 1 be impacted by solid particle 5 and cave in, form recessed groove 11, then form tooth 12 because of crested plate 2 covers the part of not impacted by solid particle 5.Because the present invention adopts the processing procedure of sandblast to come profile of tooth on the processing and forming part 1, easily manufactured, flute profile elasticity that the method has, and do not have the contaminative of etch process.
Fig. 2 is the schematic diagram of the made a kind of linear step motor of the flute profile manufacture method of using linear step motor of the present invention, comprise iron core 82 and coil 81 on the figure neutral line stepper motor 8, coil 81 twines around unshakable in one's determination 82, unshakable in one's determination 82 are provided with tooth 822, and below unshakable in one's determination 82, have a stator 83 and unshakable in one's determination 82 to cooperate, the tooth 822 that has on the stator 83 on tooth 832 and unshakable in one's determination 82 matches, utilize tooth 822 that the present invention makes and tooth 832 because can be via the processing procedure of multi-pass sandblast, so can form the stepped flute profile of the tooth 832 among the figure, can improve the speed ripple that motor produces because magnetic changes rapidly.
Fig. 3 is a kind of processing procedure schematic diagram of the flute profile manufacture method of linear step motor of the present invention, the manufacture method of the volume tooth 832 in this figure key diagram 2.Shield 2a and shield 2b are placed in the top of work piece respectively among the figure, the left side of Fig. 3 shows that solid particle 5 at a high speed impacts from top to bottom, and make the processed tooth 12a of work piece, the right side of Fig. 3 represents that then tooth 12a is covered by shield 2b again, and after solid particle at a high speed 5 impacts, tooth 12a on the work piece will become stepped flute profile, shown in tooth 12b.
Fig. 4 is the another kind of processing procedure schematic diagram of the flute profile manufacture method of linear step motor of the present invention, shield 2c, shield 2d and shield 2e be placed in respectively work piece the top, left figure among the figure shows that shield 2c covers work piece, and makes work piece type after solid particle 5 at a high speed impacts from top to bottom become tooth 12c; And middle figure among the figure and right figure show that respectively the hole of shield 2d and shield 2e becomes skewed, cooperate the inclined impact of high-speed solid particle 5, the tooth 12d and the tooth 12e that tooth 12c are formed have slick and sly shape flute profile.
Fig. 5 is a power (cogging force of three kinds of different linear step motor flute profile motors, its its magnetic force) comparison diagram, three kinds of profiles of tooth are respectively traditional stepper motor (representing with circle) of being processed into mill teeth shown in Figure 6, the stepped flute profile (representing) of Fig. 3 and the slick and sly shape flute profile (representing) of Fig. 4 with triangle with square, the facewidth with a linear step motor among the figure is divided into 30 five equilibriums, and use the magnetic circuit analysis software to calculate each locational magnetic force, result of calculation shows the motor of stepped flute profile and slick and sly shape flute profile, its magnetic force obviously variation spoke degree than traditional approach is little, so the speed ripple of linear step motor can obviously improve.
In sum, manufacture method of the present invention and structure are real to be stator or the manufacture method of the flute profile on the mover and the important technology innovation of tooth type structures of linear step motor, and can promote above-mentioned multinomial effect than located by prior art, should fully meet legal monopoly important documents such as novelty and creativeness.
Claims (4)
1. the flute profile manufacture method of a linear step motor, it is characterized in that, one shield is placed in work piece top, and shield is provided with the hole, and work piece is in order to the mover of formation linear step motor or the magnetic conductive material of stator, utilize the high-speed solid particle to pass the surface that work piece is collided in the hole on the shield, make the work piece surface produce the structure of groove and tooth.
2. the flute profile manufacture method of linear step motor according to claim 1 is characterized in that, the shield on the work piece is through changing, to obtain different holes, and,, reduce the speed ripple of linear step motor to form stair-stepping flute profile through colliding the second time of high-speed solid particle.
3. the flute profile manufacture method of linear step motor according to claim 1 is characterized in that, the impact direction of high-speed solid particle to form slick and sly shape flute profile, reduces the speed ripple of linear step motor with respect to impact direction tool one gradient of work piece.
4. the tooth type structures of a linear step motor is characterized in that, the flute profile on its stator or the mover is made according to flute profile manufacture method any among the claim 1-3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB031213332A CN100349367C (en) | 2003-03-26 | 2003-03-26 | Method for producing tooth of linear step motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB031213332A CN100349367C (en) | 2003-03-26 | 2003-03-26 | Method for producing tooth of linear step motor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1533016A CN1533016A (en) | 2004-09-29 |
| CN100349367C true CN100349367C (en) | 2007-11-14 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB031213332A Expired - Fee Related CN100349367C (en) | 2003-03-26 | 2003-03-26 | Method for producing tooth of linear step motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100349367C (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57106371A (en) * | 1980-12-23 | 1982-07-02 | Shinko Electric Co Ltd | Manufacture of pole group for linear pulse motor |
| SU1728932A1 (en) * | 1987-04-22 | 1992-04-23 | Предприятие П/Я Р-6495 | Device for joining stators of linear step motors |
| US6016021A (en) * | 1998-02-20 | 2000-01-18 | Northern Magnetics, Inc. | Linear stepper motor |
-
2003
- 2003-03-26 CN CNB031213332A patent/CN100349367C/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57106371A (en) * | 1980-12-23 | 1982-07-02 | Shinko Electric Co Ltd | Manufacture of pole group for linear pulse motor |
| SU1728932A1 (en) * | 1987-04-22 | 1992-04-23 | Предприятие П/Я Р-6495 | Device for joining stators of linear step motors |
| US6016021A (en) * | 1998-02-20 | 2000-01-18 | Northern Magnetics, Inc. | Linear stepper motor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1533016A (en) | 2004-09-29 |
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| C14 | Grant of patent or utility model | ||
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20071114 Termination date: 20210326 |