CN2859919Y - Linear motion actuator positioning device - Google Patents
Linear motion actuator positioning device Download PDFInfo
- Publication number
- CN2859919Y CN2859919Y CN 200620054734 CN200620054734U CN2859919Y CN 2859919 Y CN2859919 Y CN 2859919Y CN 200620054734 CN200620054734 CN 200620054734 CN 200620054734 U CN200620054734 U CN 200620054734U CN 2859919 Y CN2859919 Y CN 2859919Y
- Authority
- CN
- China
- Prior art keywords
- linear motor
- positioning device
- carriage
- linear
- guide rail
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Abstract
The utility model discloses a linear motion actuator positioning device, including a linear motor, a driving device driven by the linear motor and a guide rail supporting the sliding device, wherein the centroid of the sliding device, the center of the guide rail and the thrust axes of the linear motor are at the same plane. When the linear motor drives the silding device for linear motion, the heat generated in the motion process is educed by the chilling device. The utility model advances the response speed and the motion speed.
Description
[technical field]
The utility model is about a kind of precision positioning device, refers to a kind of servo positioning system that utilizes linear electric motors (single-phase voice coil motor or three-phase linear motor) to drive especially.
[technical background]
Rectilinear motion is realized by synchronous band, screw rod or ball screw conversion indirectly by electric rotating machine traditionally, and the machine driving response is slow and hysteresis, there is certain tracking error, also influence the transmission stiffness of system, mechanically operated wearing and tearing and noise or the like all are the technical bottleneck of indirect drive in the high speed and precision automation equipment.The direct driving technologies that is made of linear electric motors has been cancelled the intermediate link between motor and the load, driving-chain between motor and the workbench is shortened to zero, having avoided shortcomings such as the backlass in the lead screw transmission, inertia, frictional force and rigidity deficiency, is the market and the technological trend of high speed and precision positioning equipment.
The support technology of linear motor positioning device, fast and accurately tracking and reasonably the barycenter configuration be the important leverage of its static state and dynamic accuracy, reasonably the type of cooling then is to improve the important means of linear motor pushing force density and safety in operation and validity.
[utility model content]
The technical problem that the utility model institute desire solves provides a kind of energy and expands effective working range and realize the positioner by the direct driving of linear electric motors of track and localization fast and accurately.
The technical scheme that the utility model adopted is: linear motor positioning device comprises linear electric motors, by the carriage of linear motor driving and the guide rail that supports carriage, the thrust axis of the barycenter of carriage, the center of guide rail and linear electric motors at grade, the linear motor driving carriage is on guide rail during moving linearly, pass cooling device, derive the heat that in motion process, produces.
Described linear electric motors adopt voice coil motor, and voice coil motor comprises the circular magnet array that is provided with at interval, and the moving-coil that can move in the circular magnet array, produce thrust during the voice coil motor energising, promote moving-coil moving linearly in the annulus magnet array.
Described linear electric motors also can adopt the three-phase linear motor.
The magnet array of described cooling device next-door neighbour voice coil motor is derived the radiant heat of moving-coil.
Described guide rail is cruciform shape.
The utility model also comprises grating encoder, and its grating chi slides with carriage, and the grating encoder playback head feeds back the position of motion in good time.
The technique effect that the utility model reached is: the utility model adopts the voice coil loudspeaker voice coil linear electric motors directly to drive, and employing right-angled intersection guide supporting carriage, and the thrust axis of the center of the barycenter of carriage and right-angled intersection guide rail and voice coil loudspeaker voice coil linear electric motors is distributed rationally on same plane, and feed back movement position by grating encoder, response speed and kinematic accuracy when having improved motion in good time.
[description of drawings]
The utility model will be further described in conjunction with the embodiments with reference to the accompanying drawings.
Fig. 1 is the installation diagram of the utility model linear motor positioning device.
Fig. 2 is the installation diagram after the utility model linear motor positioning device is opened shell.
Fig. 3 is the cooling path schematic diagram of the utility model linear motor positioning device.
[embodiment]
Please refer to Fig. 1 and Fig. 2, the utility model linear motor positioning device is done reciprocating linear motion by the single shaft carriage 20 that voice coil motor 10 drives 30 supports of right-angled intersection guide rail, and realizes precision positionings by grating encoder 40 feedbacks.The utility model linear electric motors also can adopt the three-phase linear motor.
The utility model voice coil motor 10 is fixed on the support 11, and its stator is made up of yoke 13 and circular permanent magnetic iron array 12, and its moving-coil 14 is rounded, runs in the circular magnet array 12, and moving-coil 14 is located along the same line with the annulus axis of magnet array 12.Produce magnetic force during moving-coil 14 energisings, single shaft carriage 20 moving linearly in the annulus of magnet array 12 that promotes moving-coil 14 and support by right-angled intersection guide rail 30.
Remove the top cover 16 shown in Fig. 1, promptly as shown in Figure 2, the utility model is provided with right-angled intersection guide rail 30 in the upwardly extending supporting walls 15 in support 11 both sides, support carriage 20, carriage 20 connects firmly with moving-coil 14, when moving-coil 14 during moving linearly, drives carriage 20 motions in circular magnet array 12.The thrust axis of the center of the barycenter of the utility model carriage 20, decussation guide rail 30 and voice coil motor 10 is on a plane, to reduce the dynamic error that the moment of inertia causes.Can pack in the port 22 of carriage 20 and need the workpiece of processing or other part.
The heat that the utility model moving-coil 14 produces when driving carriage 20 motions will be radiated the magnet array 12 of voice coil motor 10.The utility model is provided with cooling device 50 on next-door neighbour's voice coil motor 10, heat is derived, to improve the overload capacity of the utility model linear electric motors.As shown in Figure 3, cooling paths in the cooling device 50 comprise inlet 51, be positioned at first path 52 at cooling device 50 tops, be positioned at cooling device 50 sidepieces second path 53, be positioned at the Third Road footpath 54 of cooling device 50 bottoms and export 55, cooling fluid 51 enters from entering the mouth, through first path 52, second path 53 and Third Road footpath 54, flow out to exporting 55.
The utility model also comprises grating encoder 40, be fixed on the support 11 with screw, its grating chi (figure does not show) then slides with carriage 20, the position of motion is fed back in good time response speed and kinematic accuracy when improving motion by the grating encoder playback head.
Claims (6)
1. linear motor positioning device, comprise linear electric motors, by the carriage of linear motor driving and the guide rail that supports carriage, it is characterized in that: the thrust axis of the barycenter of carriage, the center of guide rail and linear electric motors at grade, the linear motor driving carriage is on guide rail during moving linearly, pass cooling device, derive the heat that in motion process, produces.
2. linear motor positioning device as claimed in claim 1, it is characterized in that: described linear electric motors adopt voice coil motor, voice coil motor comprises the circular magnet array that is provided with at interval, and the moving-coil that can in the circular magnet array, move, produce thrust during the voice coil motor energising, promote moving-coil moving linearly in the annulus magnet array.
3. linear motor positioning device as claimed in claim 1 is characterized in that: described linear electric motors adopt the three-phase linear motor.
4. linear motor positioning device as claimed in claim 1 is characterized in that: the magnet array of described cooling device next-door neighbour voice coil motor, the radiant heat of moving-coil is derived.
5. linear motor positioning device as claimed in claim 1 is characterized in that: described guide rail is cruciform shape.
6. linear motor positioning device as claimed in claim 1 is characterized in that: the utility model also comprises grating encoder, and its grating chi slides with carriage, and the grating encoder playback head feeds back the position of motion in good time.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620054734 CN2859919Y (en) | 2006-01-26 | 2006-01-26 | Linear motion actuator positioning device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620054734 CN2859919Y (en) | 2006-01-26 | 2006-01-26 | Linear motion actuator positioning device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2859919Y true CN2859919Y (en) | 2007-01-17 |
Family
ID=37612776
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620054734 Expired - Lifetime CN2859919Y (en) | 2006-01-26 | 2006-01-26 | Linear motion actuator positioning device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2859919Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101424940B (en) * | 2007-11-02 | 2010-12-29 | 深圳市大族电机科技有限公司 | Multi-shaft mobile system driven by linear electric motor |
| CN102579068A (en) * | 2011-01-17 | 2012-07-18 | 西门子公司 | X-ray mammography device |
-
2006
- 2006-01-26 CN CN 200620054734 patent/CN2859919Y/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101424940B (en) * | 2007-11-02 | 2010-12-29 | 深圳市大族电机科技有限公司 | Multi-shaft mobile system driven by linear electric motor |
| CN102579068A (en) * | 2011-01-17 | 2012-07-18 | 西门子公司 | X-ray mammography device |
| CN102579068B (en) * | 2011-01-17 | 2016-03-23 | 西门子公司 | X-ray mammography device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: SHENZHEN HAN S MOTOR TECHNOLOGY CO., LTD. Free format text: FORMER NAME: SHENZHEN HAN S PME CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: No. 5 road 518057 in Guangdong province Shenzhen city Nanshan District high tech park of Pine Hill Factory District No. 8 Patentee after: Shenzhen Hans Electric Motor Co., Ltd. Address before: No. 5 road 518057 in Guangdong province Shenzhen city Nanshan District high tech park of Pine Hill Factory District No. 8 Patentee before: Shenzhen Han's Precision Macaronis Co., Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20070117 |
|
| EXPY | Termination of patent right or utility model |