WO2005091478A1 - ムービングマグネット形リニアスライダ - Google Patents
ムービングマグネット形リニアスライダ Download PDFInfo
- Publication number
- WO2005091478A1 WO2005091478A1 PCT/JP2005/003885 JP2005003885W WO2005091478A1 WO 2005091478 A1 WO2005091478 A1 WO 2005091478A1 JP 2005003885 W JP2005003885 W JP 2005003885W WO 2005091478 A1 WO2005091478 A1 WO 2005091478A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- linear
- armature
- fixed base
- fixed
- moving magnet
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K41/00—Propulsion systems in which a rigid body is moved along a path due to dynamo-electric interaction between the body and a magnetic field travelling along the path
- H02K41/02—Linear motors; Sectional motors
- H02K41/03—Synchronous motors; Motors moving step by step; Reluctance motors
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K41/00—Propulsion systems in which a rigid body is moved along a path due to dynamo-electric interaction between the body and a magnetic field travelling along the path
- H02K41/02—Linear motors; Sectional motors
Definitions
- the present invention relates to a linear motor that is used for various industrial machines such as an electric component mounting apparatus, a semiconductor-related apparatus, and a machine tool, and is suitable for driving a linear motion mechanism.
- FIG. 6 is a front cross-sectional view of a moving-magnet-magnet-type linear slider showing a conventional technique.
- 31 is a mover
- 32 and 33 are permanent magnet units
- 34 is a split core
- 35 is an electric unit
- 36 is a stator
- 37 is a stator frame
- 38 is a fixing member
- 39 is a table
- 40 Is a guide rail
- 41 is a slider.
- the mover 31 of the linear motor has permanent magnet units 32 and 33 extending in the vertical direction with a plurality of permanent magnets for field arranged on the lower surface of a table 38, and the stator 36 has a box-shaped fixed
- the armature winding provided as described above is formed by centrally winding the armature winding around the divided core 34.
- the mover 31 is slidably supported by a linear guide composed of a guide rail 40 and a slider 41 (for example, see Patent Document 1).
- Patent document 1 JP-A-11 113238 (Fig. 1)
- the conventional moving magnet type linear slider has a permanent magnet attached to the table.
- the present invention has been made in view of such a problem, and provides a moving magnet type linear slider that can increase the rigidity by applying a predetermined magnetic attraction force to a linear guide. With the goal.
- the present invention is configured as follows.
- the moving magnet type linear slider according to claim 1 is a linear guide comprising a slider and a guide rail which movably guides and supports the left and right sides of a table arranged in parallel to the fixed base and opposed to the fixed base, and the table is attached to the fixed base.
- a linear motor that reciprocates in a longitudinal direction on the guide rail, and detection means for detecting a relative position between the table and the fixed base.
- An armature having a multi-phase armature winding wound on an armature core serving as a magnetic circuit fixed to the fixed base, facing an armature mounted on the table and facing the armature via a magnetic gap; And a field permanent magnet arranged, wherein the detection means, a linear scale portion fixed to the table, And a sensor head mounted on the fixed base side for detecting the linear scale.
- the armature has a thrust center axis for generating a thrust of the armature, and a thrust center axis of the right and left guide rails. It is characterized by being arranged so as to substantially coincide with the central axis between them.
- the invention of claim 2 provides the moving magnet linear slider according to claim 1!
- a magnetic pole detector for detecting a relative position between the armature and the field permanent magnet is arranged on a side opposite to the linear scale, and one Hall element constituting the magnetic pole detector is provided.
- the other permanent magnet for the magnetic pole detector is fixed to the table side so as to have the same pitch as the field permanent magnet.
- the invention of claim 3 provides the moving magnet linear slider according to claim 1! Further, the fixing base is provided with a mounting hole outside or inside the guide rail for mounting to an external device.
- the sensor head includes a circuit for converting a magnetic pole detection signal, a scale signal, and the like of a linear motor into a serial signal. It is characterized by being.
- the sensor head has a memory for inputting motor parameters of a linear motor, and connects the linear slider to a drive driver.
- the motor signal is converted into a serial signal by the serial signal conversion circuit, and a signal is transmitted to the drive driver.
- the linear scale has an absolute encoder mounted thereon for detecting an absolute position signal of a linear motor mover. It is characterized by: The invention's effect
- a pressure can be applied to the linear guide by the magnetic attraction force of the field permanent magnet, and the field permanent magnet is closely fixed to the mover table on one side.
- the rigidity of the mover is also high, so the guide rigidity can be designed high by pressurizing the linear guide.
- the relative position between the linear armature and the field permanent magnet can be immediately detected when the servo is turned on, thereby simplifying the setup. it can.
- the slider width dimension can be designed to be small by forming a user's mounting hole in an empty space.
- the motor parameters are also configured to be serially transmitted, and the motor constant information and the like are stored in the linear slider in advance, and the motor parameter information is transmitted to the driver when connected to the drive driver.
- FIG. 1 is a plan view of a moving magnet type linear slider showing a first embodiment of the present invention.
- FIG. 2 is a front sectional view taken along line AA of FIG. 1.
- FIG. 3 is a perspective view showing a sensor head for a linear scale according to the present invention.
- FIG. 4 A plan view of a moving magnet type linear slider showing a second embodiment.
- FIG. 6 is a front sectional view of a moving magnet type linear slider showing a conventional technique. Explanation of symbols
- FIG. 1 is a plan view of a moving magnet type linear slider showing a first embodiment of the present invention
- FIG. 2 is a front sectional view taken along line AA of FIG.
- 1 is a fixed base
- 2 is an armature
- 3 is a table
- 4 is a permanent magnet for field
- 5 is a linear scale
- 6 is a sensor head
- 7 is a slider
- 8 is a guide rail
- 9 is a Stono
- 10 is A motor lead
- 11 is a linear scale lead
- 12 is a drive driver.
- the moving magnet type linear slider is basically composed of a linear guide comprising a slider 7 and a guide rail 8 which movably guide and support the left and right sides of a table 3 which is disposed in parallel to the fixed base 1 and opposed to the table. 3 in that it comprises a linear motor that reciprocates the fixed base 1 along the guide rail 8 in the longitudinal direction with respect to the fixed base 1 and a detecting means for detecting the relative position between the table 3 and the fixed base 1.
- the linear motor is mounted on a table 3 and an armature 2 having a multi-phase armature winding wound on an armature core serving as a magnetic circuit fixed to a fixed base 1.
- a plate-shaped permanent magnet 4 for a field which is opposed to the magnetic field through a gap, and the detecting means is attached to a linear scale 5 fixed to a table 3 and a fixed base 1 side.
- the thrust center axis for generating the thrust of the armature 2 has the right and left guide rails 8. Are arranged so that they substantially coincide with the central axis G—G.
- FIG. 3 is a perspective view showing the linear scale sensor head of the present invention.
- 13 is a serial conversion circuit
- 14 is a memory IC.
- the sensor head 11 incorporates a serial conversion circuit 13 for converting a magnetic pole detection signal and a scale signal of a linear motor into a serial signal. Further, when the linear slider is connected to the drive driver 12 having a memory 14 for inputting the motor parameters of the linear motor, the motor parameters are also converted by the serial signal conversion circuit 13 into a serial signal. There is a mechanism to make 12 transmit signals. Also, the stator base 1 is provided with stoppers 9 at the front and rear in the longitudinal direction of the guide rails 8 to prevent the table 3 from overrunning.
- the table reciprocates along the guide rail in the longitudinal direction with respect to the fixed base.
- the linear conversion is performed by the serial conversion circuit 13 inside the sensor head 6 as shown in FIG.
- the scale signal, the magnetic pole signal, and the motor parameters stored in the memory IC 14 are serially converted and transmitted to the drive driver 12 via communication. Based on the signals and the motor parameters transmitted to the drive driver 12, the drive driver 12 performs highly accurate positioning of the linear motor.
- the moving magnet type linear slider includes a linear guide for guiding and supporting the table 3 movably with respect to the fixed base 1, and a permanent magnet for the field on the table 3 side.
- the mounting area for fixing the field permanent magnet 4 to the table 3 is large! /, So that the rigidity of the thrust generating portion can be increased.
- the thrust center axis for generating the thrust of the armature 2 is fixed to the left and right guide rails 8.
- the structure is arranged so that it almost coincides with the central axis G-G between them, so that the magnetic attractive force acting on the permanent magnet for the field is applied to the linear guide as preload.
- the oscillation limit when increasing the control gain to improve the response can be increased, and the high frequency velocity ripple can be reduced.
- the cable carrier can be eliminated from the moving coil type.
- the sensor head 11 is provided with a magnetic pole detection signal and a scale signal of the linear motor. Since a serial conversion circuit 13 that converts a signal into a serial signal is incorporated, large-capacity transmission is possible as compared with conventional pulse transmission, and a high-speed and high-resolution linear drive system can be obtained. According to this embodiment, the minimum positioning resolution can be improved by a factor of 10 as compared with the conventional pulse train transmission.
- FIG. 4 is a plan view of a moving magnet type linear slider showing a second embodiment of the present invention
- FIG. 5 is a front sectional view taken along line AA of FIG.
- mounting holes 15 were provided outside the guide rails 8 for mounting to external devices.
- the mounting hole 16 is provided in the space between the armature side surface and the linear guide in consideration of the fact that the one-sided coil end width is widened due to the influence of the coil connection processing portion of the armature. .
- the width dimension of the linear slider can be reduced by using a structure in which the mounting holes are formed in the empty space between the armature and the linear guide.
- FIG. 4 is a diagram showing a configuration of the third embodiment.
- 17 is a magnet for a magnetic pole detector
- 18 is a magnetic pole detector head
- 19 is a serial converter.
- a magnetic pole detector for detecting a relative position between the linear armature 12 and the field permanent magnet 14 is arranged on the side of the slider opposite to the linear scale, and a magnetic pole detector head provided with a Hall element is provided. 18 is arranged on the fixed base 1 side, and the magnetic pole detector magnets 17 are arranged and fixed on the table 3 side at the same pitch as the field permanent magnets 4.
- the magnetic pole detection signal is converted into a serial signal by a serial conversion 19 together with a scale signal output from the linear scale sensor head 16, connected to the drive driver 12, and transmitted.
- a magnetic pole detector for performing initial magnetic pole detection is provided on the slider measuring section opposite to the linear scale, and this also has the detection side (Hall element) as the fixed base, and the magnet for the magnetic pole sensor is Is fixed to the table, so when the servo is turned on, The relative position between the armature and the field permanent magnet can be detected, and the setup can be simplified.
- the linear scale described in this embodiment is preferably equipped with an absolute encoder that detects the absolute position signal of the mover, so that the home return operation is not required when the power is turned on.
- An easy-to-operate linear slider can be provided.
- control performance high-speed response and speed ripple performance
- the control performance of the linear motor can be improved, thus realizing a high-speed settling positioning slider unit and low-speed ripple. It can also be applied to high precision constant feed slider units.
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Electromagnetism (AREA)
- Power Engineering (AREA)
- Linear Motors (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE112005000622T DE112005000622T5 (de) | 2004-03-19 | 2005-03-07 | Lineargleiter mit beweglichen Magneten |
US10/593,470 US20070170786A1 (en) | 2004-03-19 | 2005-03-07 | Moving-magnet-type linear slider |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004081219A JP2005269822A (ja) | 2004-03-19 | 2004-03-19 | ムービングマグネット形リニアスライダ |
JP2004-081219 | 2004-03-19 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2005091478A1 true WO2005091478A1 (ja) | 2005-09-29 |
Family
ID=34994031
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2005/003885 WO2005091478A1 (ja) | 2004-03-19 | 2005-03-07 | ムービングマグネット形リニアスライダ |
Country Status (7)
Country | Link |
---|---|
US (1) | US20070170786A1 (ja) |
JP (1) | JP2005269822A (ja) |
KR (1) | KR20060127913A (ja) |
CN (1) | CN1930765A (ja) |
DE (1) | DE112005000622T5 (ja) |
TW (1) | TW200536235A (ja) |
WO (1) | WO2005091478A1 (ja) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107196431A (zh) * | 2017-07-06 | 2017-09-22 | 东莞丰智谷智能设备有限公司 | 一种一体式动定子直线电机 |
CN112777250A (zh) * | 2019-11-08 | 2021-05-11 | 上海铼钠克数控科技股份有限公司 | 线性输送装置 |
Families Citing this family (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100757750B1 (ko) | 2006-07-12 | 2007-09-11 | 한국과학기술연구원 | 선형 왕복동을 발생시키는 전자기 구동 장치 |
JP4921116B2 (ja) * | 2006-11-02 | 2012-04-25 | ヤマハ発動機株式会社 | 一軸アクチュエータ |
JP5352089B2 (ja) * | 2008-01-11 | 2013-11-27 | ヤマハ発動機株式会社 | リニアモータ及び部品移載装置 |
JP5373292B2 (ja) * | 2008-01-11 | 2013-12-18 | ヤマハ発動機株式会社 | リニアモータ、多軸リニアモータ及び部品移載装置 |
JP5250269B2 (ja) * | 2008-01-11 | 2013-07-31 | ヤマハ発動機株式会社 | 多軸リニアモータ及び部品移載装置 |
JP5963069B2 (ja) * | 2010-11-15 | 2016-08-03 | Smc株式会社 | リニアアクチュエータ |
JP5418558B2 (ja) * | 2011-08-23 | 2014-02-19 | 株式会社安川電機 | リニアモータの固定子およびリニアモータ |
EP2866337B1 (en) * | 2013-08-30 | 2016-09-28 | Yamaha Hatsudoki Kabushiki Kaisha | Slider for linear conveyer and linear conveyer |
JP2015089189A (ja) * | 2013-10-29 | 2015-05-07 | 株式会社安川電機 | リニアモータ |
CN104259869B (zh) * | 2014-05-20 | 2017-03-22 | 大连日佳电子有限公司 | 一种双层双相反应式线性精密调整滑台 |
CN203967949U (zh) * | 2014-06-10 | 2014-11-26 | 黑龙江恒益电气股份有限公司 | 电直驱式压力机直线电机 |
JP6028013B2 (ja) * | 2014-12-25 | 2016-11-16 | Thk株式会社 | リニアモータ |
CN107615629B (zh) | 2015-05-27 | 2019-05-10 | 三菱电机株式会社 | 电动机 |
TWI664795B (zh) | 2017-03-24 | 2019-07-01 | 日商日立金屬股份有限公司 | Linear motor |
US11557954B2 (en) | 2017-10-27 | 2023-01-17 | Canon Kabushiki Kaisha | Transport system, processing system, and article manufacturing method |
CN111463995B (zh) * | 2020-05-18 | 2021-03-23 | 湖南文理学院 | 一种机电一体化直线驱动装置 |
CN115912812B (zh) * | 2022-12-21 | 2023-10-13 | 阿帕斯数控机床制造(上海)有限公司 | 直线电机安装方法、结构及其用电设备 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
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JPH05219786A (ja) * | 1992-02-03 | 1993-08-27 | Nippon Parusumootaa Kk | テーブル移動装置 |
JPH07322596A (ja) * | 1994-05-24 | 1995-12-08 | Nippon Thompson Co Ltd | 駆動ユニット及びこれに装備されるべきスケールの製造方法 |
JPH10127078A (ja) * | 1996-10-23 | 1998-05-15 | Mitsubishi Electric Corp | リニアサーボシステムおよびその磁極位置検出方法 |
JP2001352744A (ja) * | 2000-06-02 | 2001-12-21 | Nippon Thompson Co Ltd | 可動マグネット型リニアモータを内蔵したスライド装置 |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5801462A (en) * | 1995-03-31 | 1998-09-01 | Minolta Co., Ltd. | Linear motor and image reading apparatus |
JPH09266659A (ja) * | 1996-03-28 | 1997-10-07 | Nippon Thompson Co Ltd | 小形リニアモータテーブル |
DE19819542C2 (de) * | 1998-04-30 | 2002-10-24 | Infineon Technologies Ag | Schaltungsanordnung mit einem Sensorelement und einem nichtflüchtigen Speichermittel |
US6441515B1 (en) * | 1999-09-10 | 2002-08-27 | Sankyo Seiki Mfg. Co., Ltd. | Linear motor |
CN1961470B (zh) * | 2004-06-11 | 2010-05-05 | 株式会社安川电机 | 动磁铁型线性滑台 |
-
2004
- 2004-03-19 JP JP2004081219A patent/JP2005269822A/ja active Pending
-
2005
- 2005-03-07 CN CNA2005800082373A patent/CN1930765A/zh active Pending
- 2005-03-07 KR KR1020067014966A patent/KR20060127913A/ko not_active Application Discontinuation
- 2005-03-07 US US10/593,470 patent/US20070170786A1/en not_active Abandoned
- 2005-03-07 WO PCT/JP2005/003885 patent/WO2005091478A1/ja active Application Filing
- 2005-03-07 DE DE112005000622T patent/DE112005000622T5/de not_active Withdrawn
- 2005-03-14 TW TW094107718A patent/TW200536235A/zh unknown
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH05219786A (ja) * | 1992-02-03 | 1993-08-27 | Nippon Parusumootaa Kk | テーブル移動装置 |
JPH07322596A (ja) * | 1994-05-24 | 1995-12-08 | Nippon Thompson Co Ltd | 駆動ユニット及びこれに装備されるべきスケールの製造方法 |
JPH10127078A (ja) * | 1996-10-23 | 1998-05-15 | Mitsubishi Electric Corp | リニアサーボシステムおよびその磁極位置検出方法 |
JP2001352744A (ja) * | 2000-06-02 | 2001-12-21 | Nippon Thompson Co Ltd | 可動マグネット型リニアモータを内蔵したスライド装置 |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107196431A (zh) * | 2017-07-06 | 2017-09-22 | 东莞丰智谷智能设备有限公司 | 一种一体式动定子直线电机 |
CN107196431B (zh) * | 2017-07-06 | 2023-02-03 | 东莞丰智谷智能设备有限公司 | 一种一体式动定子直线电机 |
CN112777250A (zh) * | 2019-11-08 | 2021-05-11 | 上海铼钠克数控科技股份有限公司 | 线性输送装置 |
Also Published As
Publication number | Publication date |
---|---|
JP2005269822A (ja) | 2005-09-29 |
DE112005000622T5 (de) | 2007-02-01 |
US20070170786A1 (en) | 2007-07-26 |
CN1930765A (zh) | 2007-03-14 |
TW200536235A (en) | 2005-11-01 |
KR20060127913A (ko) | 2006-12-13 |
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