CN107437883A - Stepper motor - Google Patents
Stepper motor Download PDFInfo
- Publication number
- CN107437883A CN107437883A CN201710722561.6A CN201710722561A CN107437883A CN 107437883 A CN107437883 A CN 107437883A CN 201710722561 A CN201710722561 A CN 201710722561A CN 107437883 A CN107437883 A CN 107437883A
- Authority
- CN
- China
- Prior art keywords
- casing
- rotor
- stepper motor
- housing
- screw mandrel
- 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.)
- Pending
Links
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K37/00—Motors with rotor rotating step by step and without interrupter or commutator driven by the rotor, e.g. stepping motors
- H02K37/24—Structural association with auxiliary mechanical devices
Abstract
The invention provides a kind of stepper motor, and it includes：Casing；Rotor, by axial limiting on casing；Stator, it is fixedly mounted in casing and is placed in rotor periphery；Screw mandrel, axially penetrate through casing and be connected with rotor threads, the rotor, which circumferentially rotates, can drive screw mandrel axial displacement；Capture structure, including a pair of the paws for being fixed on the housing of casing side, being movably arranged on housing and one-to-one a pair of the swing arms of a pair of paws, described screw mandrel one end is stretched out outside casing, the other end is articulated and connected with two swing arms simultaneously through casing and housing and by connector, drives that swing arm is swung and related a pair of paws move back and forth during the screw mandrel axial displacement.This stepper motor has the advantages of reducing noise, raising transmission accuracy.
Description
Technical field
The invention belongs to field of mechanical technique, is related to a kind of stepper motor.
Background technology
In the prior art, there should be pneumatic gearing structure in the industry higher to environmental requirement such as medical treatment, it can be used for pressing from both sides
The objects such as glass are held, the occasion such as medical treatment, manipulator uses pneumatic control in the market, and it needs air compressor, sky
The equipment such as air filter, high energy consumption and noise is big, larger to environment and energy consumption in use, is not suitable for use and is curing
The industries higher to environmental requirement such as treatment.
On the other hand, the present invention devises a kind of stepping motor structure that can be reduced noise, improve transmission accuracy to replace originally
With the link of pneumatic gearing.
The content of the invention
The purpose of the present invention is above mentioned problem be present for existing technology, it is proposed that one kind can reduce noise, improve biography
The stepper motor of dynamic precision.
The purpose of the present invention can be realized by following technical proposal：A kind of stepper motor, including：
Casing；
Rotor, by axial limiting on casing；
Stator, it is fixedly mounted in casing and is placed in rotor periphery；
Screw mandrel, axially penetrate through casing and be connected with rotor threads, the rotor, which circumferentially rotates, can drive screw mandrel axial displacement；
Capture structure, including be fixed on the housing of casing side, a pair of paws being movably arranged on housing, with an opponent
One-to-one a pair of the swing arms of pawl, described screw mandrel one end are stretched out outside casing, and the other end is through casing and housing and passes through connector
It is articulated and connected simultaneously with two swing arms, drives that swing arm is swung and related a pair of paws move back and forth during the screw mandrel axial displacement.
As a further improvement on the present invention, the linear reciprocation being arranged on preset direction that moves back and forth of a pair of paws is transported
It is dynamic, and the preset direction is vertical with the axial direction of screw mandrel.
As the further improvement of the present invention, the paw includes being connected as a single entity and orthogonal clamping part and movement
Portion, the clamping part are set away from housing, chute are provided with housing, two move portions are slidably mounted in the chute, institute
State swing arm to connect with corresponding move portion, two swinging arms simultaneously can drive corresponding move portion straight-line displacement in chute, make two folders
Hold portion closer or far from.
As the further improvement of the present invention, the swing arm is arranged to the shift fork swing arm structure of bending, and the swing arm is leaned on
Preceding one end end is connected with corresponding paw, and one end end of two swing arms rearward is cut with scissors by same articulated structure and connector
Connect, the middle part of swing arm is hinged on housing by straight pin.
As a further improvement on the present invention, hollow connecting shaft, the connecting shaft axially are inserted with the middle part of the rotor
With being provided with the female thread structure being connected with wire rod thread inside rotor correspondence position, the connecting shaft is spacing by chassis axial.
As the further improvement of the present invention, a point bearing for row rotor both sides, the company are arranged with the connecting shaft
Spindle is connected by the bearing with casing.
As another improvement of the present invention, the connecting shaft is formed by plastic material processing and forming.
As a further improvement on the present invention, the casing is fastened by drive end bearing bracket and rear end cap and formed, and the stator includes
The stator core for being looped around the skeleton of rotor periphery and being connected with skeleton, the stator core are adapted to and close with casing structure
It is connected between drive end bearing bracket and rear end cap, and drive end bearing bracket, stator core, rear end cap are tightly secured together.
As a further improvement on the present invention, the rotor by two rotor cores laminated and is clamped in two rotor iron
Magnetic rings composition between core.
As a further improvement on the present invention, connecting plate is connected between the casing and housing, the housing is away from even
The side of fishplate bar is provided with the working plate for installing paw, and for the chute on working plate, the swing arm passes through working plate
And connect with corresponding paw.
Based on above-mentioned technical proposal, the embodiment of the present invention can at least produce following technique effect：Overall construction design is closed
Reason, directly drive transmission with stepper motor and substitute existing pneumatic gearing, be driven using stepper motor, high transmission accuracy and noise
Small, availability is higher, and motor torque can drive the big minor adjustment of output current by adjusting, and then can arbitrarily control power output
Square, transmission speed are adjustable；Rotor is connected with wire rod thread in the present invention, and rotor axial is limited, and connector is connected on screw mandrel
And be connected with a pair of swing arms, the corresponding paw of swing arm connection, during work, rotor rotation forces screw mandrel axial direction straight line backhauls
Dynamic, two swing arms of screw mandrel movement progress are outwardly opened or inwardly tightened up, and swing arm linkage paw, realize paw on preset direction
Move back and forth, and then realize the crawl or release of the objects such as cup.
Brief description of the drawings
The embodiment of the present invention is described in further detail below in conjunction with the accompanying drawings, wherein：
Fig. 1 is the structural representation of a preferred embodiment of the present invention.
Fig. 2 is the explosive view of a preferred embodiment of the present invention.
Fig. 3 is the explosive view at another visual angle of a preferred embodiment of the present invention.
Fig. 4 is the part-structure schematic diagram of a preferred embodiment of the present invention.
Fig. 5 is the structural representation at another visual angles of Fig. 4.
In figure, 10, casing；11st, drive end bearing bracket；12nd, rear end cap；20th, rotor；30th, stator；31st, skeleton；32nd, stator core；
40th, screw mandrel；51st, housing；52nd, paw；521st, clamping part；522nd, move portion；53rd, swing arm；54th, connector；55th, straight pin；60、
Connecting shaft；70th, bearing；80th, screw；90th, connecting plate；100th, working plate；101st, chute.
Embodiment
It is the specific embodiment of the present invention and with reference to accompanying drawing below, technical scheme is further described,
But the present invention is not limited to these embodiments.
Technical scheme provided by the invention is illustrated in more detail with reference to Fig. 1 to Fig. 5.
As shown in Figures 1 to 5, this stepper motor includes：
Casing 10；
Rotor 20, by axial limiting on casing 10；
Stator 30, it is fixedly mounted in casing 10 and is placed in the periphery of rotor 20；
Screw mandrel 40, axially penetrate through casing 10 and be threadedly coupled with rotor 20, the rotor 20, which circumferentially rotates, can drive screw mandrel
40 axial displacements；
Capture structure, including be fixed on the housing 51 of the side of casing 10, a pair of the paws 52 being movably arranged on housing 51,
With one-to-one a pair of the swing arms 53 of a pair of paws 52, described one end of screw mandrel 40 is stretched out outside casing 10, and the other end passes through casing 10
It is articulated and connected simultaneously with two swing arms 53 with housing 51 and by connector 54, drives swing arm 53 during 40 axial displacement of screw mandrel
Swing and related a pair of paws 52 move back and forth.
The present invention protects a kind of stepper motor, and its integral structure layout is compact, reasonable, and all parts are fitted close, and can be fitted
The industry higher to environmental requirement for medical treatment etc..
The present invention uses driving stepper motor, and controllor for step-by-step motor and driver control motor operation, control can be used
Device sends a pulse signal, and rotor 20 preferably rotates predetermined angle (such as 1.8 °), predetermined number (such as 200)
Pulse motor rotates a circle.
This stepper motor overall construction design is reasonable, and directly driving transmission with stepper motor substitutes existing pneumatic gearing,
It is driven using stepper motor, high transmission accuracy and noise is small, availability is higher, and motor torque, which can pass through, adjusts driving output current
Big minor adjustment, and then output torque can be arbitrarily controlled, transmission speed is adjustable；Rotor 20 connects with the screw thread of screw mandrel 40 in the present invention
Connect, rotor 20 is axially limited, and connector 54 is connected on screw mandrel 40 and is connected with a pair of swing arms 53, the corresponding hand of the connection of swing arm 53
Pawl 52, during work, 20 rotation forces screw mandrel of rotor, 40 axial straight line moves back and forth, screw mandrel 40 movement progress, two swing arms 53
Outwardly open or inwardly tighten up, the linkage paw 52 of swing arm 53, realize the moving back and forth on preset direction of paw 52, Jin Ershi
The crawl or release of the objects such as existing cup.
In the present invention, moving back and forth for paw 52 can be that straight-line displacement can also have curve rail in preset plane
The reciprocating motion of mark.
To ensure that work is relatively reliable, stronger, stable working is captured, object is not easy to release, further preferably above-mentioned
A pair of paws 52 move back and forth the straight reciprocating motion being arranged on preset direction, and the axial direction of the preset direction and screw mandrel 40
Direction is vertical.
As a kind of preferred or optional embodiment, paw 52 includes being connected as a single entity and orthogonal clamping part 521
With move portion 522, the clamping part 521 is set away from housing 51, and chute 101 is provided with housing 51, and two move portions 522 are equal
It is slidably mounted in the chute 101, the swing arm 53 is connected with corresponding move portion 522, and two swing arms 53 are acted and can driven pair
Answer the straight-line displacement in chute 101 of move portion 522, make two clamping parts 521 closer or far from.
Further, to ensure that the reliable of the swing work of swing arm 53, and screw mandrel 40 drive two actions of swing arms 53 coherent,
It is preferred that swing arm 53 is arranged to the structure of shift fork swing arm 53 of bending, the forward one end end of the swing arm 53 and the corresponding phase of paw 52
Even, one end end of two swing arms 53 rearward is be hinged by same articulated structure and connector 54, and the middle part of swing arm 53 passes through
Straight pin 55 is hinged on housing 51.
For ensure screw mandrel 40 and rotor 20 dock and the axial limiting effect of rotor 20, it is preferable that in the middle part of rotor 20
Hollow connecting shaft 60 is axially inserted with, the connecting shaft 60 is threadedly coupled with being provided with inside the correspondence position of rotor 20 with screw mandrel 40
Female thread structure, the connecting shaft 60 is by the axial limiting of casing 10.
Further, a point bearing 70 for the both sides of row rotor 20 is preferably arranged with connecting shaft 60, the connecting shaft 60 passes through
The bearing 70 is connected with casing 10.
Bearing 70 in the present invention not only ensures the reliability that connecting shaft 60 circumferentially rotates, and is also corresponded to on casing 10 spacing
Respective outer side edges, ensure connecting shaft 60 and the reliability of the axial limiting of rotor 20, avoid axial float, rotor 20 circumferentially rotates flat
Surely.
External at present to also have transmission product to be driven using mach nut element and mach screw mandrel 40, it is used
Metal material, transmission abrasion is big, and noise is also higher, and machining cost is high, because machining accuracy control is not easily achieved height
Unanimously, so the uniformity of product is poor.
On the other hand, being improved as another, the connecting shaft 60 in the present invention is formed by plastic material processing and forming, i.e. rotor 20
It is plastic whorl with 40 corresponding internal whorl of screw mandrel；Using the female thread structure of mould molding processing plastic material, and correspond to
For external screw thread using extruding screw mandrel 40, homogeneity of product is higher, and noise and life-span all improve a lot, and market acceptance is higher, should
It is wide with prospect.
To improve the reasonability of the compactedness of topology layout and space layout, casing 10 is detained by drive end bearing bracket 11 and rear end cap 12
Conjunction forms, and the stator 30 includes the stator core 32 for being looped around the skeleton 31 of the periphery of rotor 20 and being connected with skeleton 31, institute
State stator core 32 and the physical fit of casing 10 and be close-coupled between drive end bearing bracket 11 and rear end cap 12, and it is drive end bearing bracket 11, fixed
Sub- iron core 32, rear end cap 12 are tightly secured together.
It is preferred that drive end bearing bracket 11, stator core 32 and rear end cap 12 are fixed together by screw 80 and form overall fixed knot
Structure (i.e. relative position is fixed), rotor 20 are located in stator 30, and screw 80 sequentially passes through drive end bearing bracket 11, the stator core 32 of stator 30
With rear end cap 12.
Further, the overall structure after above-mentioned drive end bearing bracket 11, rear end cap 12 and stator 30 assemble is preferably square body, on
State four that screw 80 is preferably arranged to be loaded on four edges respectively.
It is worth mentioning that：Crawl structure in this case can be placed in the outside of drive end bearing bracket 11, can also be placed in the outside of rear end cap 12,
Its position outside of drive end bearing bracket 11 i.e. as depicted is not limited to.
To ensure that the reliability of work and rotor 20 and stator 30 closely coordinate, preferred rotor 20 is laminated by two
Rotor core and be clamped between two rotor cores magnetic rings composition.
Further, to ensure the stability of structural strength and work, it is easy to safeguard, is connected between casing 10 and housing 51
There is connecting plate 90, the side of the housing 51 away from connecting plate 90 is provided with the working plate 100 for installing paw 52, the cunning
On working plate 100, the swing arm 53 connects through working plate 100 and with corresponding paw 52 groove 101.
In summary, pneumatic gearing is changed to stepper motor transmission, reduces equipment purchase cost, reduces noise, improves transmission
It precision and validity, can use on squelch and high-precision equipment, the position of screw thread and the change of material, make product
Uniformity, stability have a very big lifting, and market application foreground is wide.
Specific embodiment described herein is only to spirit explanation for example of the invention.Technology belonging to the present invention is led
The technical staff in domain can be made various modifications or supplement to described specific embodiment or be replaced using similar mode
Generation, but without departing from the spiritual of the present invention or surmount scope defined in appended claims.
Claims (10)
- A kind of 1. stepper motor, it is characterised in that：Including：Casing；Rotor, by axial limiting on casing；Stator, it is fixedly mounted in casing and is placed in rotor periphery；Screw mandrel, axially penetrate through casing and be connected with rotor threads, the rotor, which circumferentially rotates, can drive screw mandrel axial displacement；Structure is captured, including a pair of the paws and a pair of paws one for being fixed on the housing of casing side, being movably arranged on housing A pair of swing arms corresponding to one, described screw mandrel one end are stretched out outside casing, the other end through casing and housing and by connector simultaneously It is articulated and connected with two swing arms, drives that swing arm is swung and related a pair of paws move back and forth during the screw mandrel axial displacement.
- 2. stepper motor according to claim 1, it is characterised in that：Moving back and forth for the pair of paw is arranged to default Straight reciprocating motion on direction, and the preset direction is vertical with the axial direction of screw mandrel.
- 3. stepper motor according to claim 2, it is characterised in that：The paw includes being connected as a single entity and orthogonal Clamping part and move portion, the clamping part are set away from housing, chute are provided with housing, two move portions are slidably mounted on In the chute, the swing arm connects with corresponding move portion, and two swinging arms simultaneously can drive corresponding move portion straight line in chute Displacement, make two clamping parts closer or far from.
- 4. according to the stepper motor described in claim 1 or 2 or 3, it is characterised in that：The swing arm is arranged to the shift fork pendulum of bending Arm configuration, the forward one end end of the swing arm are connected with corresponding paw, and one end end of two swing arms rearward passes through same hinge Binding structure is hinged with connector, and the middle part of swing arm is hinged on housing by straight pin.
- 5. stepper motor according to claim 1, it is characterised in that：Axially hollow connection is inserted with the middle part of the rotor Axle, the connecting shaft is with being provided with the female thread structure being connected with wire rod thread inside rotor correspondence position, the connecting shaft is by machine Shell axial limiting.
- 6. stepper motor according to claim 5, it is characterised in that：Point row rotor both sides are arranged with the connecting shaft Bearing, the connecting shaft are connected by the bearing with casing.
- 7. stepper motor according to claim 5, it is characterised in that：The connecting shaft by plastic material processing and forming and Into.
- 8. stepper motor according to claim 1, it is characterised in that：The casing fastened by drive end bearing bracket and rear end cap and Into the stator includes the stator core for being looped around the skeleton of rotor periphery and being connected with skeleton, the stator core and machine Shell structure is adapted to and is close-coupled between drive end bearing bracket and rear end cap, and drive end bearing bracket, stator core, rear end cap are tightly fixed to one Rise.
- 9. stepper motor according to claim 1, it is characterised in that：The rotor by two rotor cores laminated and The magnetic rings composition being clamped between two rotor cores.
- 10. stepper motor according to claim 3, it is characterised in that：Connecting plate is connected between the casing and housing, Side of the housing away from connecting plate is provided with the working plate for installing paw, and the chute is described on working plate Swing arm connects through working plate and with corresponding paw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710722561.6A CN107437883A (en) | 2017-08-22 | 2017-08-22 | Stepper motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710722561.6A CN107437883A (en) | 2017-08-22 | 2017-08-22 | Stepper motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107437883A true CN107437883A (en) | 2017-12-05 |
Family
ID=60461049
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710722561.6A Pending CN107437883A (en) | 2017-08-22 | 2017-08-22 | Stepper motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107437883A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109639050A (en) * | 2018-12-29 | 2019-04-16 | 宁波鼎祥电器制造有限公司 | A kind of double movement stepper motors with position sensing control |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1290592A (en) * | 1999-10-04 | 2001-04-11 | 速睦喜股份有限公司 | Composite pneumatic chuck with position detection mechanism |
| CN1293090A (en) * | 1999-10-15 | 2001-05-02 | 速睦喜股份有限公司 | Power operated manipulator |
| CN101047330A (en) * | 2006-03-31 | 2007-10-03 | 厦门达真磁记录有限公司 | Stator structure of permanent magnetic claw step electric machine |
| CN201282405Y (en) * | 2008-10-22 | 2009-07-29 | 单庚明 | Reduced speed type claw pole type permanent magnet synchronous motor |
| JP2011067049A (en) * | 2009-09-18 | 2011-03-31 | Tricore Corp | Stepping motor |
| CN202679213U (en) * | 2012-07-24 | 2013-01-16 | 谢玲飞 | Improved stepping motor |
| CN203219108U (en) * | 2013-05-20 | 2013-09-25 | 海顿直线电机(常州)有限公司 | Novel linear stepping motor |
| CN103915970A (en) * | 2013-01-09 | 2014-07-09 | 上海鸣志电器股份有限公司 | Hybrid stepping motor |
| CN204304696U (en) * | 2014-12-22 | 2015-04-29 | 常州市鼎智机电有限公司 | Through shaft type screw mandrel stepping motor rotor axle chasing bar |
| CN204741396U (en) * | 2015-05-20 | 2015-11-04 | 常州市鼎智机电有限公司 | Link up a linear stepping motor |
| CN206302228U (en) * | 2016-12-30 | 2017-07-04 | 中山市胜洋电机有限公司 | Hybrid stepping motor |
| CN207098913U (en) * | 2017-08-22 | 2018-03-13 | 宁波鼎祥电器制造有限公司 | Stepper motor |
-
2017
- 2017-08-22 CN CN201710722561.6A patent/CN107437883A/en active Pending
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1290592A (en) * | 1999-10-04 | 2001-04-11 | 速睦喜股份有限公司 | Composite pneumatic chuck with position detection mechanism |
| CN1293090A (en) * | 1999-10-15 | 2001-05-02 | 速睦喜股份有限公司 | Power operated manipulator |
| CN101047330A (en) * | 2006-03-31 | 2007-10-03 | 厦门达真磁记录有限公司 | Stator structure of permanent magnetic claw step electric machine |
| CN201282405Y (en) * | 2008-10-22 | 2009-07-29 | 单庚明 | Reduced speed type claw pole type permanent magnet synchronous motor |
| JP2011067049A (en) * | 2009-09-18 | 2011-03-31 | Tricore Corp | Stepping motor |
| CN202679213U (en) * | 2012-07-24 | 2013-01-16 | 谢玲飞 | Improved stepping motor |
| CN103915970A (en) * | 2013-01-09 | 2014-07-09 | 上海鸣志电器股份有限公司 | Hybrid stepping motor |
| CN203219108U (en) * | 2013-05-20 | 2013-09-25 | 海顿直线电机(常州)有限公司 | Novel linear stepping motor |
| CN204304696U (en) * | 2014-12-22 | 2015-04-29 | 常州市鼎智机电有限公司 | Through shaft type screw mandrel stepping motor rotor axle chasing bar |
| CN204741396U (en) * | 2015-05-20 | 2015-11-04 | 常州市鼎智机电有限公司 | Link up a linear stepping motor |
| CN206302228U (en) * | 2016-12-30 | 2017-07-04 | 中山市胜洋电机有限公司 | Hybrid stepping motor |
| CN207098913U (en) * | 2017-08-22 | 2018-03-13 | 宁波鼎祥电器制造有限公司 | Stepper motor |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109639050A (en) * | 2018-12-29 | 2019-04-16 | 宁波鼎祥电器制造有限公司 | A kind of double movement stepper motors with position sensing control |
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