CN109655992A - Positioning device - Google Patents
Positioning device Download PDFInfo
- Publication number
- CN109655992A CN109655992A CN201910061020.2A CN201910061020A CN109655992A CN 109655992 A CN109655992 A CN 109655992A CN 201910061020 A CN201910061020 A CN 201910061020A CN 109655992 A CN109655992 A CN 109655992A
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- Prior art keywords
- fixed
- hole
- positioning device
- substrate
- fixedly connected
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Classifications
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
- G02B7/02—Mountings, adjusting means, or light-tight connections, for optical elements for lenses
- G02B7/04—Mountings, adjusting means, or light-tight connections, for optical elements for lenses with mechanism for focusing or varying magnification
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
- G02B7/02—Mountings, adjusting means, or light-tight connections, for optical elements for lenses
- G02B7/022—Mountings, adjusting means, or light-tight connections, for optical elements for lenses lens and mount having complementary engagement means, e.g. screw/thread
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
- G02B7/02—Mountings, adjusting means, or light-tight connections, for optical elements for lenses
- G02B7/026—Mountings, adjusting means, or light-tight connections, for optical elements for lenses using retaining rings or springs
Abstract
The present invention relates to a kind of positioning devices, including supporting mechanism, fixed mechanism, guiding mechanism, driving mechanism, the first pre- mounted mechanism and the second pre- mounted mechanism；The fixed mechanism is contained in the supporting mechanism and is slidably connected by guiding mechanism and the supporting mechanism；The driving mechanism is fixedly connected on the supporting mechanism for driving the fixed mechanism to move back and forth on the guiding mechanism；The first pre- mounted mechanism connects the fixed mechanism and guiding mechanism, the pretightning force being used to provide the described between fixed mechanism and guiding mechanism；The second pre- mounted mechanism connects the supporting mechanism and the fixed mechanism, the pretightning force being used to provide the described between supporting mechanism and the fixed mechanism.Positioning device provided by the invention, precision height, stability height, good environmental adaptability, strong shock resistance and compact-sized.
Description
Technical field
The present invention relates to optical precision field of locating technology, more particularly to a kind of positioning device.
Background technique
Under severe working environment (including aviation, land and ocean etc.), camera needs to bear extremely severe
Working condition (the shock and vibration as caused by carrier；The variation of camera load external and internal pressure, temperature change etc.).In real work
Cheng Zhong, the focal plane of camera can generate different degrees of deviation, i.e. defocus phenomenon, in turn result in the fuzzy of image, need to be to variation
Image planes are corrected, the high quality imaging of the position assurance camera of focusing of focusing microscope group high-precision and high-stability；For zoom
For optical system, zoom microscope group be capable of movement and the positioning effects of high-precision and high-stability camera high quality imaging.For
Overcome complicated adverse circumstances to change the influence to camera imaging quality, needs a set of anti shock and vibration ability strong, high-accuracy, high
The fast-positioning device of stability come ensure camera high quality imaging.
During the work time, transmission parts can there are certain gaps for positioning device, such as ball and straight in linear bearing
Certain axial gap and radial clearance are had between line bearing case and retainer, to guarantee smooth stream during the motion
Freely.But under extremely severe working environment, extraneous impact will affect the stabilization of transmission parts in positioning device with vibration
Property, cause camera take pictures process optical axis shake, influence camera imaging quality.
In accurate focus technique field, existing patent name is " the high-accuracy compact tune for aviation optical remote sensor
Focusing mechanism and assembly method ", application No. is 201810638684.6 patents, realize focusing mobile mirror using upper and lower V-type sliding rail
Frame is moved along optical axis.But this kind of system schema still has following shortcoming, since transmission mechanism does not apply preload
Power not can guarantee the high optical axis stability in focussing process under aviation vibration environment.
In consideration of it, it is really necessary to provide a kind of positioning device for realizing high-precision with high stability.
Summary of the invention
The present invention provides a kind of precision height, stability height, good environmental adaptability, strong shock resistance and compact-sized determines
Position device.
The present invention provides a kind of positioning device, including supporting mechanism, fixed mechanism, guiding mechanism, driving mechanism, first are in advance
Mounted mechanism and the second pre- mounted mechanism；The fixed mechanism is contained in the supporting mechanism and by guiding mechanism and the support
Mechanism slips connection；The driving mechanism is fixedly connected on the supporting mechanism for driving the fixed mechanism to lead described
It is moved back and forth in mechanism；The first pre- mounted mechanism connects the fixed mechanism and guiding mechanism, is used to provide the described fixation
Pretightning force between mechanism and guiding mechanism；The second pre- mounted mechanism connects the supporting mechanism and the fixed mechanism, uses
Pretightning force between the offer supporting mechanism and the fixed mechanism.
In a preferred embodiment, the supporting mechanism includes substrate and from the side that the substrate edges extend to form
Plate, the substrate and the side plate surround the accommodating chamber for accommodating the fixed mechanism；The substrate deviates from the accommodating chamber
Side be fixedly connected with the receiving cartridge being connected to the accommodating chamber.
In a preferred embodiment, the guiding mechanism includes the first slide track component, the first slide track component packet
Include the first sliding block and first sliding rail fixed with the first sliding block clamping；The fixed mechanism includes fixed plate and is fixedly connected
Fixed frame in one side surface of fixed plate, first sliding block are fixedly connected on the fixed plate away from the fixed frame
Surface；The side plate includes bottom plate and top plate, and first sliding rail is fixed on the bottom plate.
In a preferred embodiment, the guiding mechanism further includes the second slide track component, second slide track component
It is fixed on the top plate including the second sliding block and second sliding rail fixed with the second sliding block clamping, second sliding rail.
In a preferred embodiment, the guiding mechanism includes multiple first slide track components, and first sliding rail is in
Linear, the multiple first sliding rail parallel interval are arranged and both perpendicular to the substrates；The guiding mechanism includes at least
One the second slide track component, second sliding rail is linear and is parallel to first sliding rail.
In a preferred embodiment, the described first pre- mounted mechanism includes the first support column, is placed on first support
The first spring and servo-actuated seat on column；The servo-actuated seat is sandwiched between second sliding block and the fixed frame and realizes described second
Sliding block is fixedly connected with the fixed frame；Position on the fixed frame close to the servo-actuated seat convexes to form fixing seat, institute
It states and offers first through hole in fixing seat, offer the second through-hole on the servo-actuated seat, first support column passes through described the
The both ends of one through-hole and second through-hole and first spring are abutted with the fixing seat and the servo-actuated seat respectively, and institute
It states the first spring and is in compressive state.
In a preferred embodiment, the described second pre- mounted mechanism including the second support column and is placed on second support
Second spring on column；The side of the fixed frame towards the substrate offers accepting hole, one end of second support column
It is fixedly connected across the substrate and with the substrate, one end far from the substrate is contained in the accepting hole and far from institute
State accepting hole bottom；The both ends of the second spring are connected to the substrate and the accepting hole bottom, and described second respectively
Spring is in compressive state.
In a preferred embodiment, the driving mechanism includes electric machine assembly and screw component；The electric machine assembly
Including first gear and the motor for driving the first gear to rotate；The screw component include screw rod, fixation be placed on the silk
Second gear and feed screw nut on bar, wherein be fixedly connected with attachment base in the fixed plate, the feed screw nut with it is described
Attachment base is fixedly connected；The first gear is intermeshed with the second gear, drive the screw rod to rotate so that drive with
The fixed mechanism that the feed screw nut is fixedly connected moves back and forth.
In a preferred embodiment, multiple through holes are offered on the attachment base, are opened up on the feed screw nut
There is matching hole corresponding with the multiple through hole；The multiple fixing piece is each passed through corresponding through hole and matching hole is realized
The feed screw nut is fixedly connected with the attachment base；The preloading spring is connected to described under the action of corresponding fixing piece
Feed screw nut deviates from the side of the attachment base, and the multiple preloading spring is in compressive state.
In a preferred embodiment, the electric machine assembly further includes driving piece and connection sheet；The motor passes through institute
It states driving piece and the connection sheet is connect with the first gear；Described driving piece one end is offered to be turned for fixing the motor
The fixation hole of axis, one end far from the fixation hole are provided with multiple fixed columns；Multiple first cards are offered in the connection sheet
Hole and multiple second holding holes are held, the multiple fixed column is corresponding with the multiple first holding hole one-to-one correspondence and can accommodate
And it is slidably connected in the multiple first holding hole；A side face of the first gear is provided with multiple positioning columns, described
Multiple positioning columns correspond with the multiple second holding hole respectively and can accommodate and be slidably connected to the multiple second
In holding hole.
Positioning device provided by the invention provides the guiding mechanism and the fixed machine by the described first pre- mounted mechanism
The pretightning force of structure, the second pre- mounted mechanism provides the pretightning force of the support component Yu the fixed mechanism, so that described solid
Determine aimed at precision height, the stability height, good environmental adaptability, strong shock resistance of mechanism and fixed mechanism fixation.
Detailed description of the invention
Fig. 1 is the perspective view of positioning device provided by the invention；
Fig. 2 is the front view of positioning device shown in FIG. 1；
Fig. 3 is the cross-sectional view of positioning device section A shown in Fig. 2；
Fig. 4 is the cross-sectional view of positioning device section B shown in Fig. 2；
Fig. 5 is the perspective view of the electric machine assembly of driving mechanism in positioning device shown in Fig. 4.
Fig. 6 is the perspective view of fixed mechanism in positioning device shown in FIG. 1, driving mechanism and the first pre- mounted mechanism cooperation.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, ordinary skill personage are obtained every other without making creative work
Embodiment shall fall within the protection scope of the present invention.
Please refer to Fig. 1 and Fig. 2, the present invention provides a kind of positioning device 100, including supporting mechanism 10, fixed mechanism 20, leads
To mechanism 30, driving mechanism 40, the first pre- mounted mechanism 50 and the second pre- mounted mechanism 60.The fixed mechanism 20 is contained in the branch
It is slidably connected in support mechanism 10 and by guiding mechanism 30 with the supporting mechanism 10, the driving mechanism 40 is fixedly connected on institute
It states on supporting mechanism 10 for driving the fixed mechanism to move back and forth on the guiding mechanism 30.The first pre- mounted mechanism
The 50 connections fixed mechanism 20 is with guiding mechanism 30, the preload being used to provide the described between fixed mechanism 20 and guiding mechanism 30
Power；The second pre- mounted mechanism 60 connects the supporting mechanism 10 and the fixed mechanism 20, is used to provide the described supporting mechanism
Pretightning force between 10 and the fixed mechanism 20.
In a specific embodiment, the supporting mechanism 10 includes substrate 11 and extends shape from 11 edge of substrate
At side plate 12, the substrate 11 surrounds the accommodating chamber 101 for accommodating the fixed mechanism 20 with the side plate 12；The base
Plate 11 is fixedly connected with the receiving cartridge 13 being connected to the accommodating chamber 101 away from the side of the accommodating chamber 101.Present embodiment
In, the substrate 11 is in rectangle, and the side plate 12 is vertically connected at the substrate 11.Adjacent both sides with the substrate 11 are X
Axis, Y-axis, to establish coordinate system as Z axis perpendicular to direction described in the substrate 11.
Please continue to refer to Fig. 2, further, the guiding mechanism 30 includes the first slide track component 31, first sliding rail
Component 31 includes the first sliding block 311 and first sliding rail 312 fixed with 311 clamping of the first sliding block；The fixed mechanism 20
Including fixed plate 21 and it is fixedly connected on the fixed frame 22 of 21 1 side surface of fixed plate, first sliding block 311 is fixed to be connected
It is connected to the surface that the fixed plate 21 deviates from the fixed frame 21；The side plate 12 includes bottom plate 121, top plate 122 and connects respectively
Two side plates 123 of the bottom plate 121 and the top plate 122 are connect, first sliding rail 312 is fixed on the bottom plate 121.
The guiding mechanism 30 further includes the second slide track component 32, and second slide track component 32 includes the second sliding block 321
And the second sliding rail 322 fixed with 321 clamping of the second sliding block, second sliding rail 322 are fixed on the top plate 122.
In present embodiment, the guiding mechanism 30 includes multiple first slide track components 31, and first sliding rail 312 is in straight
Linear, the multiple first sliding rail, 312 parallel interval is arranged and both perpendicular to the substrate 11；The sliding track mechanism 30 includes
At least one second slide track component 32, second sliding rail 322 is linear and is parallel to first sliding rail 312.It is i.e. described
First sliding rail 312 extends with second sliding rail 322 along Z-direction.First sliding rail 312 of guiding mechanism 30 in the present invention with
Second sliding rail 322 uses the structure type that linear slide is applied in combination, and it is curved to overcome the permission of single group linear slide platform
The small disadvantage of bent torque, improves the mechanical property of structure, ensure that the stability of positioning device, improves load capacity.
In other embodiments, the multiple first sliding rail 312 is arranged with 322 parallel interval of the second sliding rail,
The shape of first sliding rail 312 and second sliding rail 322 is not limited to linear, or arc, fold-line-shaped etc..
Fig. 1 and Fig. 6 is please referred to, the first pre- mounted mechanism 50 includes the first support column 51, is placed on first support column
The first spring 52 and servo-actuated seat 53 on 51；The servo-actuated seat 53 is sandwiched between second sliding block 321 and the fixed frame 22
Realize being fixedly connected for second sliding block 321 and the fixed frame 22；Close to the servo-actuated seat 53 on the fixed frame 22
Position convexes to form fixing seat 221, and first through hole 2211 is offered in the fixing seat 221, is offered on the servo-actuated seat 53
Second through-hole 531, first support column 51 pass through the first through hole 2211 and second through-hole 531 and first bullet
The both ends of spring 52 are abutted with the fixing seat 221 and the servo-actuated seat 53 respectively, and first spring 52 is in compressive state.
I.e. described first spring 52 provides the fixed mechanism 20 pre-fastening moment about the z axis.The first pre- mounted mechanism that the present invention uses
50 mounting means, the pretightning force being not only applied between the fixed mechanism 20 and second slide track component 32, Er Qieti
The high integrally-built rigidity of the positioning device 100, strengthens the mechanical property of entire positioning device.
In present embodiment, when the fixed mechanism 20 drives positioning object along Z axis horizontal movement, described first is preloaded
Mechanism 50 provides the fixed mechanism 20 pre-fastening moment about the z axis.Wherein the pretightning force of the described first pre- mounted mechanism 50 is about the z axis
Pre-fastening moment allow the 1/5 of torque, while the preload of the first pre- mounted mechanism 50 about the z axis no more than the guide frame 30
Power is not less than the fixed mechanism 20 along the pretightning force of Z axis and positions 5 times of gravity of object.
Referring to figure 3., the described second pre- mounted mechanism 60 include the second support column 61 and be placed on the second support column 61 the
Two springs 62；The side of the fixed frame 22 towards the substrate 11 offers accepting hole 222, and the one of second support column 61
End is fixedly connected across the substrate 11 and with the substrate 11, and one end far from the substrate 11 is contained in the accepting hole
In 222 and far from 222 bottom of accepting hole；The both ends of the second spring 62 are connected to the substrate 11 and the receipts respectively
Hold 222 bottom of hole, and the second spring 62 is in compressive state.It is described when the i.e. described fixed mechanism 20 is along Z axis horizontal movement
Second spring 62 provides the fixed mechanism 20 pre-fastening moment around X-axis and Y-axis.The second pre- mounted mechanism 60 that the present invention uses
Mounting means, the pretightning force being not only applied between the fixed mechanism 20 and the supporting mechanism 10, but also improve institute
The integrally-built rigidity of positioning device 100 is stated, the mechanical property of entire positioning device is strengthened.
In present embodiment, when the fixed mechanism 20 drives positioning object along Z axis horizontal movement, the second pre- carrier aircraft
The pretightning force of structure 60 provides the fixed mechanism 20 pre-fastening moment around X-axis and Y-axis.The preload of the second pre- mounted mechanism 60
Power allows the 1/5 of torque around X-axis and Y-axis no more than the guiding mechanism 30 around the pre-fastening moment of X-axis and Y-axis, while described the
The pretightning force of two pre- mounted mechanisms 60 is along the pretightning force of X-axis and Y-axis not less than the fixed mechanism 20 and its 5 times of weights of positioning object
Power.
Referring to figure 4. and Fig. 5, the driving mechanism 40 include electric machine assembly 41 and screw component 42；The electric machine assembly
41 include first gear 411 and the motor 412 for driving the rotation of first gear 411；The screw component 42 includes screw rod
421, the fixed second gear 422 being placed on the screw rod 421 and feed screw nut 423, wherein fixed in the fixed plate 21 connect
It is connected to attachment base 23, the feed screw nut 423 is fixedly connected with the attachment base 23；The first gear 411 and described second
Gear 412 intermeshes, and the rotation of screw rod 421 is driven to drive the fixation machine being fixedly connected with the feed screw nut 423 in turn
Structure 20 moves back and forth.
Further, the screw component 42 further includes multiple preloading springs 424；It is offered on the attachment base 23 multiple
Through hole 231 offers matching hole 4231 corresponding with the multiple through hole 231 on the feed screw nut 423；Multiple fixations
Part such as screw is each passed through corresponding through hole 231 and realizes the feed screw nut 423 and the attachment base with matching hole 4231
23 are fixedly connected；The multiple preloading spring 424 is respectively sleeved on a fixing piece and supports under the action of corresponding fixing piece
The feed screw nut 423 is connected to away from the side of the attachment base 23 and is in compressive state.The silk of the driving structure 40
The junction of the attachment base 23 of stem nut 423 and the fixed mechanism 20 uses the scheme of fixing piece and preloading spring 424, not only
The gap between the screw rod 421 and the feed screw nut 423 is eliminated, and eliminates the attachment base 23 and the screw rod
The influence of nonparallelism error when nut 423 connects, when ensuring that attachment base 23 is moved along screw rod 421, axle center shaking volume error
Between ± 5 "；The positioning accuracy and stability of the positioning device 100 are improved, while reducing resetting difficulty.
Further, the screw component 42 further includes to top waveform spring 427, described pair of 427 sets of waveform spring of top
On the screw rod 421 and between the feed screw nut 423 and the attachment base 23 and described pair of top waveform spring 427
Two sides be connected to feed screw nut 426 and attachment base 23 respectively, be used for by fixing piece connect the feed screw nut 423 with
Flatness between the two bad bring is eliminated when the attachment base 23 to be influenced.
The electric machine assembly 41 further includes driving piece 413 and connection sheet 414；The motor 412 passes through the driving piece 413
And the connection sheet 414 is connect with the first gear 411；Described 413 one end of driving piece is offered for fixing the motor
The fixation hole 4131 of 412 shafts, one end far from the fixation hole 4131 are provided with multiple fixed columns 4132；The connection sheet
Offer multiple first holding holes 4141 and multiple second holding holes 4142 on 414, the multiple fixed column 4132 with it is described more
A first holding hole 4141 corresponds and can accommodate and be slidably connected in the multiple first holding hole 4141；Described
A side face of one gear 411 is provided with multiple positioning columns 4111, the multiple positioning column 4111 and the multiple second clamping
Hole 4142 corresponds and can accommodate and be slidably connected in the multiple second holding hole 4142.Heretofore described connection
Piece 414 first gear 411 can be slided with the driving piece 413 relatively, can overcome the motor in vibrating working environment
The problem of positioning object centers axis stability is influenced when occurring eccentric when rotation, improve environmental suitability.
Further, the electric machine assembly 41 further includes mounting base 415, first gear bearing 416 and first bearing seat
417.Specifically, the motor 412 is contained in the accommodating chamber 101 and is consolidated by the mounting base 415 with the substrate 11
Fixed connection, the shaft of the motor 412 are fixedly connected after passing through the substrate 11 with the driving piece 413.The first gear
The 411 centre of surface axial locations for deviating from the positioning column 4111 are provided with first gear shaft 4112, the first gear axis
It holds 416 and is placed on the first gear bearing 4112 and be used to support the first gear 416 and rotate.The first bearing seat 417
For accommodating and supporting the first gear bearing 411, so that 4112 stable rotation of first gear shaft.
The screw component 42 further includes two screw rod bearings 425 and shaft-position encoder 426.One end of the screw rod 421
Across the substrate 11, the second gear 422 be located at side of the substrate 11 far from the accommodating chamber 101 and with first tooth
411 engagement of wheel.Described two screw rod bearings 425 are located at the two sides of the substrate 11, are used to support the fixed screw rod
421, the work for keeping the screw rod 421 continual and steady.The shaft-position encoder 426 is fixed on one end of the screw rod 421,
The angle that the screw rod 421 rotates is measured for precision, and then calculates the fixed mechanism 20 first to the supporting mechanism 10
Mobile distance.
Positioning device 100 provided by the invention provides the guiding mechanism 30 and institute by the described first pre- mounted mechanism 50
State the pretightning force of fixed mechanism 20, the second pre- mounted mechanism 60 provides the pre- of the supporting mechanism 10 and the fixed mechanism 20
The setting of clamp force and the driving piece 413, connection sheet 414, so that the fixed mechanism 20 and the fixed mechanism 20 are fixed
Aimed at precision is high, stability height, good environmental adaptability, strong shock resistance.Positioning device 100 provided by the invention, precision
Height, stability height, good environmental adaptability, strong shock resistance and compact-sized.
One or more of embodiments of the invention above described embodiment only expresses, description are more specific and detailed
Carefully, but it cannot be understood as the limitations to patent of invention range.It should be pointed out that for the ordinary skill of this field
For personnel, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to the present invention
Protection scope.Therefore, the scope of protection of the patent of the invention shall be subject to the appended claims.
Claims (10)
1. a kind of positioning device characterized by comprising supporting mechanism, fixed mechanism, guiding mechanism, driving mechanism, first are in advance
Mounted mechanism and the second pre- mounted mechanism；The fixed mechanism is contained in the supporting mechanism and by guiding mechanism and the support
Mechanism slips connection；The driving mechanism is fixedly connected on the supporting mechanism for driving the fixed mechanism to lead described
It is moved back and forth in mechanism；The first pre- mounted mechanism connects the fixed mechanism and guiding mechanism, is used to provide the described fixation
Pretightning force between mechanism and guiding mechanism；The second pre- mounted mechanism connects the supporting mechanism and the fixed mechanism, uses
Pretightning force between the offer supporting mechanism and the fixed mechanism.
2. positioning device as described in claim 1, which is characterized in that the supporting mechanism includes substrate and from the substrate side
The side plate that edge extends to form, the substrate and the side plate surround the accommodating chamber for accommodating the fixed mechanism；The substrate
The receiving cartridge being connected to the accommodating chamber is fixedly connected with away from the side of the accommodating chamber.
3. positioning device as claimed in claim 2, which is characterized in that the guiding mechanism includes the first slide track component, described
First slide track component includes the first sliding block and first sliding rail fixed with the first sliding block clamping；The fixed mechanism includes solid
Fixed board and the fixed frame for being fixedly connected on one side surface of fixed plate, first sliding block are fixedly connected on the fixed backboard
Surface from the fixed frame；The side plate includes bottom plate and top plate, and first sliding rail is fixed on the bottom plate.
4. positioning device as claimed in claim 3, which is characterized in that the guiding mechanism further includes the second slide track component, institute
Stating the second slide track component includes that the second sliding block and second sliding rail fixed with the second sliding block clamping, second sliding rail are fixed
In on the top plate.
5. positioning device as claimed in claim 4, which is characterized in that the guiding mechanism includes multiple first slide track components,
First sliding rail is linear, and the multiple first sliding rail parallel interval is arranged and both perpendicular to the substrate；It is described to lead
It include at least one second slide track component to mechanism, second sliding rail is linear and is parallel to first sliding rail.
6. positioning device as claimed in claim 5, which is characterized in that the first pre- mounted mechanism includes the first support column, set
In the first spring and servo-actuated seat on first support column；The servo-actuated seat be sandwiched in second sliding block and the fixed frame it
Between realize being fixedly connected for second sliding block and the fixed frame；Close to the position of servo-actuated seat protrusion on the fixed frame
Fixing seat is formed, offers first through hole in the fixing seat, the second through-hole, first support are offered on the servo-actuated seat
Column pass through the both ends of the first through hole and second through-hole and first spring respectively with the fixing seat and it is described with
Dynamic seat abuts, and first spring is in compressive state.
7. positioning device as claimed in claim 5, which is characterized in that the second pre- mounted mechanism includes the second support column and set
The second spring on second support column；The side of the fixed frame towards the substrate offers accepting hole, institute
The one end for stating the second support column passes through the substrate and is fixedly connected with the substrate, and one end far from the substrate is contained in institute
It states in accepting hole and far from the accepting hole bottom；The both ends of the second spring are connected to the substrate and the receiving respectively
Hole bottom, and the second spring is in compressive state.
8. positioning device as claimed in claim 5, which is characterized in that the driving mechanism includes electric machine assembly and screw rod group
Part；The electric machine assembly includes first gear and the motor for driving the first gear rotation；The screw component include screw rod,
Fixed second gear and the feed screw nut being placed on the screw rod, wherein attachment base is fixedly connected in the fixed plate, it is described
Feed screw nut is fixedly connected with the attachment base；The first gear is intermeshed with the second gear, drives the screw rod
Rotation drives the fixed mechanism being fixedly connected with the feed screw nut to move back and forth in turn.
9. positioning device as claimed in claim 8, which is characterized in that multiple through holes are offered on the attachment base, it is described
Matching hole corresponding with the multiple through hole is offered on feed screw nut；The multiple fixing piece is each passed through corresponding run through
Hole and matching hole realize being fixedly connected for the feed screw nut and the attachment base；Work of the preloading spring in corresponding fixing piece
The side that the feed screw nut deviates from the attachment base is connected under, and the multiple preloading spring is in compressive state.
10. positioning device as claimed in claim 9, which is characterized in that the electric machine assembly further includes driving piece and connection sheet；
The motor is connect by the driving piece and the connection sheet with the first gear；Described driving piece one end, which offers, to be used for
The fixation hole of the fixed machine shaft, one end far from the fixation hole are provided with multiple fixed columns；It is opened in the connection sheet
Equipped with multiple first holding holes and multiple second holding holes, the multiple fixed column and the multiple first holding hole are corresponded
It corresponds to and can accommodate and be slidably connected in the multiple first holding hole；A side face of the first gear is provided with more
A positioning column, the multiple positioning column correspond with the multiple second holding hole respectively and can accommodate and be slidably connected to
In the multiple second holding hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910061020.2A CN109655992B (en) | 2019-01-23 | 2019-01-23 | Positioning device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910061020.2A CN109655992B (en) | 2019-01-23 | 2019-01-23 | Positioning device |
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| CN109655992A true CN109655992A (en) | 2019-04-19 |
| CN109655992B CN109655992B (en) | 2020-10-13 |
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