CN206398028U - Lead screw transmission mechanism, workbench module and picture pick-up device - Google Patents
Lead screw transmission mechanism, workbench module and picture pick-up device Download PDFInfo
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- CN206398028U CN206398028U CN201720076400.XU CN201720076400U CN206398028U CN 206398028 U CN206398028 U CN 206398028U CN 201720076400 U CN201720076400 U CN 201720076400U CN 206398028 U CN206398028 U CN 206398028U
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- polished rod
- screw mandrel
- connection component
- drive
- screwed hole
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Abstract
The utility model provides a kind of lead screw transmission mechanism, workbench module and picture pick-up device, to solve the slow technical problem of the backhaul of driven member of existing lead screw transmission mechanism.The lead screw transmission mechanism includes screw mandrel, polished rod, drive component and connection component, and connection component, which is used to rotate with driven member, to be connected；Parallel interval is set pivot center, screw mandrel and the polished rod of connection component successively；Connection component is provided with screwed hole, and the cross section of screwed hole is semicircle, and the internal thread of screwed hole can be engaged or separated with the external screw thread of screw mandrel；Drive component is connected with polished rod and can drive polished rod moving radially along polished rod；Polished rod can be abutted with connection component and can drive connection component rotated relative to driven member, and then so as to the external screw thread engagement of internal thread and the screw mandrel of screwed hole or separate；When the external screw thread of screw mandrel is separated with the internal thread of screwed hole, connection component and polished rod abut and can synchronously drive axial movement of the driven member along polished rod.
Description
Technical field
The utility model is related to camera technology field, more particularly, to a kind of lead screw transmission mechanism, workbench module and takes the photograph
As equipment.
Background technology
The species of picture pick-up device has many kinds, and common picture pick-up device includes video camera, camera and with camera function
Electronic equipment etc..Large-scale picture pick-up device is directed to, screw mandrel is a kind of commonly used drive rod of picture pick-up device.
In the prior art, screw mandrel is rotatable and can drive length direction of the driven member being connected with wire rod thread along screw mandrel
Mobile, driven member has an initial position and final position on screw mandrel.Usually, when screw mandrel is rotated in a first direction,
Driven member is moved on screw mandrel from initial position to final position, referred to as process, and in the process, driven member is used as centre
Connector can drive connected miscellaneous part to move；When the screw mandrel edge second direction opposite with first direction rotates, quilt
Actuator is moved on screw mandrel from final position to initial position, referred to as backhaul.
However, it is above-mentioned in the prior art, the backhaul of driven member is identical with the principle of process, it is necessary to by screw mandrel driving
Backhaul could be completed, screw mandrel needs to rotate after a few, and driven member could return to initial position by final position, cause to be driven
The return interval of part is long, that is, the backhaul of driven member is slow.
Utility model content
The purpose of this utility model is to provide a kind of lead screw transmission mechanism, passed with solving screw mandrel present in prior art
The slow technical problem of backhaul of the driven member of motivation structure.
To reach above-mentioned purpose, the utility model embodiment uses following technical scheme：
A kind of lead screw transmission mechanism, including：Screw mandrel, polished rod, drive component and connection component, connection component are used for being driven
Moving part rotates connection；
Parallel interval is set pivot center, screw mandrel and the polished rod of connection component successively；
Connection component is provided with screwed hole, and the cross section of screwed hole is semicircle, and the internal thread of screwed hole can be with screw mandrel
External screw thread engagement or separate；
Drive component is connected with polished rod and can drive polished rod moving radially along polished rod；Polished rod can be supported with connection component
Connect and can drive connection component rotated relative to driven member, and then so that the internal thread of screwed hole and the external screw thread of screw mandrel are nibbled
Close or separate；
When the external screw thread of screw mandrel is engaged with the internal thread of screwed hole, screw mandrel can drive connection component synchronization drive driven
Axial movement of the moving part along screw mandrel；
When the external screw thread of screw mandrel is separated with the internal thread of screwed hole, connection component and polished rod abut and can synchronously drive
Axial movement of the driven member along polished rod.
As the further improvement of above-mentioned technical proposal, connection component includes connecting portion and abutting part；
Connecting portion includes first end and the second end being oppositely arranged, and first end, which is used to rotate with driven member, to be connected, and second
End is connected with abutting part；
Screwed hole is located between first end and the second end.
As the further improvement of above-mentioned technical proposal, drive component includes the driving wheel with polished rod grafting；
Driving wheel can drive polished rod to be revolved round the sun around the center of rotation of driving wheel, and then so that polished rod drive connection component is relative
Rotated in driven member.
As the further improvement of above-mentioned technical proposal, driving wheel is two；
The two ends of two driving wheels and polished rod correspond grafting.
As the further improvement of above-mentioned technical proposal, in addition to the handwheel for being connected and being coaxially disposed with screw mandrel, on handwheel
It is provided with neck；
Drive component also includes the operation knob for being connected and being coaxially disposed with driving wheel；
When operation knob is located at initial position, the internal thread of screwed hole is engaged with the external screw thread of screw mandrel；
When operation knob and neck clamping, the internal thread of screwed hole is separated with the external screw thread of screw mandrel.
As the further improvement of above-mentioned technical proposal, in addition to positioning seat, screw mandrel and handwheel are respectively positioned at positioning seat
Both sides, screw mandrel and handwheel are with positioning seat grafting and can be rotated relative to positioning seat；
Driving wheel and operation knob are located at the both sides of positioning seat respectively, driving wheel and operation knob with positioning seat grafting and
It can be rotated relative to positioning seat.
As the further improvement of above-mentioned technical proposal, in addition to two positioning seats being oppositely arranged；
The two ends of screw mandrel correspond grafting with two positioning seats and screw mandrel can be rotated relative to positioning seat；
Two driving wheels and two positioning seats correspond grafting and driving wheel can be rotated relative to positioning seat.
As the further improvement of above-mentioned technical proposal, along first end to the bearing of trend at the second end, the thickness of abutting part
Gradually successively decrease.
The lead screw transmission mechanism that the utility model is provided, including screw mandrel, polished rod, drive component and connection component, wherein, even
Connected components, which are used to rotate with driven member, to be connected, and parallel interval is set successively for pivot center, screw mandrel and the polished rod of connection component, even
Connected components are provided with screwed hole, and the cross section of screwed hole is semicircle, and drive component is connected with polished rod and can drive polished rod edge
Polished rod is moved radially, polished rod can be abutted with connection component and can drive connection component rotated relative to driven member, enter
And the internal thread of screwed hole can be driven to engage or separate with the external screw thread of screw mandrel.In use, when the external screw thread and screwed hole of screw mandrel
Internal thread engagement when, screw mandrel can drive connection component synchronization drive axial movement of the driven member along screw mandrel；Work as driving group
Part drives polished rod along polished rod when moving radially, polished rod and connection component abut simultaneously synchronous drive connection component relative to being driven
Part is rotated, and now, the central axis of leading screw is constant, and connection component remote screw mandrel under the driving of polished rod, and then, screwed hole
Internal thread is separated with the external screw thread of screw mandrel；When the external screw thread of screw mandrel is separated with the internal thread of screwed hole, connection component and polished rod
Abut and can synchronously drive axial movement of the driven member along polished rod.
The lead screw transmission mechanism provided compared to prior art, the utility model, in the backhaul of connection component, utilizes people
Work type of drive or other non-screw mandrel type of drive make axial movement of the connection component along polished rod to complete backhaul, compared to screw mandrel
Driving completes the mode of backhaul, due to not by externally threaded limitation on leading screw, connection component can manual drive mode or other
Backhaul is rapidly completed under the driving of non-screw mandrel type of drive, that is, it can quickly return to initial position.
Another object of the present utility model also resides in a kind of workbench module of offer, and the workbench module includes silk as above
Bar transmission mechanism.
Above-mentioned workbench module compared to prior art beneficial effect, with above-mentioned lead screw transmission mechanism compared to existing skill
The beneficial effect of art is identical, and here is omitted.
Another object of the present utility model also resides in a kind of picture pick-up device of offer, and the screw mandrel that the picture pick-up device includes as above is passed
Motivation structure.
Above-mentioned picture pick-up device compared to prior art beneficial effect, with above-mentioned lead screw transmission mechanism compared to prior art
Beneficial effect it is identical, here is omitted.
Brief description of the drawings
, below will be right in order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art
The accompanying drawing used required in embodiment or description of the prior art is briefly described, it should be apparent that, describe below
In accompanying drawing be some embodiments of the present utility model, for those of ordinary skill in the art, do not paying creativeness
On the premise of work, other accompanying drawings can also be obtained according to these accompanying drawings.
The schematic diagram one for the lead screw transmission mechanism that Fig. 1 provides for the utility model embodiment；
The schematic diagram two for the lead screw transmission mechanism that Fig. 2 provides for the utility model embodiment；
The schematic diagram for the workbench module that Fig. 3 provides for the utility model embodiment；
The schematic diagram for the picture pick-up device that Fig. 4 provides for the utility model embodiment.
Reference：
1- screw mandrels；2- polished rods；
3- drive components；4- connection components；
5- handwheels；6- positioning seats；
31- driving wheels；32- operation knobs；
41- connecting portions；42- abutting parts；
43- screwed holes；51- necks.
Embodiment
The technical solution of the utility model is clearly and completely described below in conjunction with accompanying drawing, it is clear that described
Embodiment is a part of embodiment of the utility model, rather than whole embodiments.Based on the embodiment in the utility model, sheet
The every other embodiment that field those of ordinary skill is obtained under the premise of creative work is not made, belongs to this practicality
Novel protected scope.
, it is necessary to explanation in description of the present utility model, term " " center ", " on ", " under ", it is "left", "right", " perpendicular
Directly ", the orientation or position relationship of the instruction such as " level ", " interior ", " outer " are, based on orientation shown in the drawings or position relationship, to be only
Described for the ease of description the utility model and simplifying, rather than to indicate or imply that signified device or element must have specific
Orientation, with specific azimuth configuration and operation, therefore it is not intended that to limitation of the present utility model.In addition, term " the
One ", " second ", " the 3rd " are only used for describing purpose, and it is not intended that indicating or implying relative importance.
, it is necessary to which explanation, unless otherwise clearly defined and limited, term " are pacified in description of the present utility model
Dress ", " connected ", " connection " should be interpreted broadly, for example, it may be fixedly connected or be detachably connected, or integratedly
Connection；Can be mechanical connection or electrical connection；Can be joined directly together, can also be indirectly connected to by intermediary,
It can be the connection of two element internals.For the ordinary skill in the art, above-mentioned art can be understood with concrete condition
Concrete meaning of the language in the utility model.
The schematic diagram one for the lead screw transmission mechanism that Fig. 1 provides for the utility model embodiment, Fig. 2 is implemented for the utility model
The schematic diagram two for the lead screw transmission mechanism that example is provided.
Refer to Fig. 1 and Fig. 2, the lead screw transmission mechanism that the present embodiment is provided, including screw mandrel 1, polished rod 2, drive component 3 and
Connection component 4, connection component 4, which is used to rotate with driven member, to be connected；Pivot center, screw mandrel 1 and the polished rod 2 of connection component 4 according to
Secondary parallel interval is set；Connection component 4 is provided with screwed hole 43, and the cross section of screwed hole 43 is semicircle, screwed hole 43 it is interior
Screw thread can be engaged or separated with the external screw thread of screw mandrel 1；Drive component 3 is connected with polished rod 2 and can drive polished rod 2 along polished rod 2
Move radially；Polished rod 2 can be abutted with connection component 4 and can drive connection component 4 relative to driven member rotate, and then
So that the internal thread of screwed hole 43 is engaged or separated with the external screw thread of screw mandrel 1.
Wherein, when the external screw thread of screw mandrel 1 is engaged with the internal thread of screwed hole 43, screw mandrel 1 can drive connection component 3 it is same
Step drives axial movement of the driven member along screw mandrel 1；When the external screw thread of screw mandrel 1 is separated with the internal thread of screwed hole 43, connection
Component 3 and polished rod 2 abut and can synchronously drive axial movement of the driven member along polished rod 2.
The lead screw transmission mechanism that the utility model is provided, including screw mandrel, polished rod, drive component and connection component, wherein, even
Connected components, which are used to rotate with driven member, to be connected, and parallel interval is set successively for pivot center, screw mandrel and the polished rod of connection component, even
Connected components are provided with screwed hole, and the cross section of screwed hole is semicircle, and drive component is connected with polished rod and can drive polished rod edge
Polished rod is moved radially, polished rod can be abutted with connection component and can drive connection component rotated relative to driven member, enter
And the internal thread of screwed hole can be driven to engage or separate with the external screw thread of screw mandrel.In use, when the external screw thread and screwed hole of screw mandrel
Internal thread engagement when, screw mandrel can drive connection component synchronization drive axial movement of the driven member along screw mandrel；Work as driving group
Part drives polished rod along polished rod when moving radially, polished rod and connection component abut simultaneously synchronous drive connection component relative to being driven
Part is rotated, and now, the central axis of leading screw is constant, and connection component remote screw mandrel under the driving of polished rod, and then, screwed hole
Internal thread is separated with the external screw thread of screw mandrel；When the external screw thread of screw mandrel is separated with the internal thread of screwed hole, connection component and polished rod
Abut and can synchronously drive axial movement of the driven member along polished rod.
The lead screw transmission mechanism provided compared to prior art, the utility model, in the backhaul of connection component, utilizes people
Work type of drive or other non-screw mandrel type of drive make axial movement of the connection component along polished rod to complete backhaul, compared to screw mandrel
Driving completes the mode of backhaul, due to not by externally threaded limitation on leading screw, connection component can manual drive mode or other
Backhaul is rapidly completed under the driving of non-screw mandrel type of drive, that is, it can quickly return to initial position.
Specifically, connection component 4 includes connecting portion 41 and abutting part 42；Wherein, connecting portion 41 includes the be oppositely arranged
One end and the second end, first end, which is used to rotate with driven member, to be connected, and the second end is connected with abutting part 42；Screwed hole 43 is arranged on
On connecting portion 41 and positioned between first end and the second end.
In the present embodiment, driven member can be the workbench in the workbench module of picture pick-up device, the company of connection component
Socket part is rotated with the workbench and is connected, and the workbench can be moved with connection component along the pivot center of connection component.
Preferably, connection component is located at the top of screw mandrel and polished rod, the opening down setting of screwed hole, polished rod and abutting part
Bottom abut.Certainly, when screw mandrel is located at the top of polished rod, connection component can be located between screw mandrel and polished rod, and screwed hole is opened
Mouth is set upward, and polished rod is abutted with the bottom of abutting part.
It is preferred that, drive component 3 includes the driving wheel 31 with the grafting of polished rod 2；Driving wheel 31 can drive polished rod 2 around driving
The center of rotation revolution of wheel 31, and then so that the drive connection component 4 of polished rod 2 is rotated relative to driven member.Specifically, screw mandrel is worked as
External screw thread when being engaged with the internal thread of screwed hole, polished rod is abutted with abutting part, and driving wheel is once rotate, you can driving polished rod band
Dynamic connection component is rotated relative to driven member, or, when the external screw thread of screw mandrel engage with the internal thread of screwed hole, polished rod and
Abutment portion is from driving wheel is synchronously after the certain angle of driving polished rod rotation, and polished rod is abutted with abutting part again, and driving wheel continues
Rotated by former direction, then polished rod drives connection component to be rotated relative to driven member.
In order that polished rod keeps balance during being revolved round the sun with driving wheel, it is two to set driving wheel, also, two drivings
The two ends of wheel and polished rod correspond grafting.
Further, above-mentioned lead screw transmission mechanism also includes the handwheel 5 for being connected and being coaxially disposed with screw mandrel 1, and the handwheel is used
Rotated in drive screw, neck 51 is provided with handwheel 5；Drive component 3 also includes what is be connected and be coaxially disposed with driving wheel 31
Operation knob 32, the operation button is used to drive driving wheel to rotate；When operation knob 32 is located at initial position, screwed hole 43
Internal thread is engaged with the external screw thread of screw mandrel 1；When operation knob 32 and 51 clamping of neck, internal thread and the screw mandrel 1 of screwed hole 43
External screw thread separation.
It is arranged such, the rotational angle of driving wheel can be limited in set angle, that is, the initial position of operation button
Angle between final position is the set angle.
Further, above-mentioned lead screw transmission mechanism also includes positioning seat 6, and screw mandrel 1 and handwheel 5 are respectively positioned at positioning seat 6
Both sides, screw mandrel 1 and handwheel 5 are with the grafting of positioning seat 6 and can be rotated relative to positioning seat 6；Driving wheel 31 and operation knob
32 are located at the both sides of positioning seat 6 respectively, driving wheel 31 and operation knob 32 with the grafting of positioning seat 6 and can be relative to positioning
Seat 6 is rotated.It is arranged such, the overall structure of the lead screw transmission mechanism can be made compacter.
Preferably, above-mentioned positioning seat 6 is two, and the two ends of screw mandrel 1 correspond grafting and screw mandrel energy with two positioning seats 6
It is enough to be rotated relative to positioning seat 6；Two driving wheels 31 and two positioning seats 6 correspond grafting and driving wheel 31 can be relative to
Positioning seat 6 is rotated, to keep the balance of whole mechanism.
Preferably, along first end to the bearing of trend at the second end, the thickness of abutting part gradually successively decreases, in this way, connection component
Abutting part lighter in weight, using less external force driving polished rod can make connection component relative to driven member rotate.
The schematic diagram for the workbench module that Fig. 3 provides for the utility model embodiment.
Referring to Fig. 3, another object of the present utility model also resides in a kind of workbench module of offer, the workbench module bag
Include lead screw transmission mechanism as above.
Preferably, the workbench module also includes from top to bottom spaced at least two workbench successively, wherein
One workbench is fixedly connected with the positioning seat 6 of above-mentioned lead screw transmission mechanism, another workbench and above-mentioned screw rod transmission
The connection component 4 of mechanism rotates connection, in this way, two workbenches can be relatively moved.
Above-mentioned workbench module compared to prior art beneficial effect, with above-mentioned lead screw transmission mechanism compared to existing skill
The beneficial effect of art is identical, and here is omitted.
The schematic diagram for the picture pick-up device that Fig. 4 provides for the utility model embodiment.
Referring to Fig. 4, another object of the present utility model also resides in a kind of picture pick-up device of offer, the picture pick-up device is included such as
On lead screw transmission mechanism.
Preferably, the picture pick-up device also includes workbench module, and the workbench module, which includes from top to bottom being spaced successively, to be set
At least two workbenches put, one of workbench is fixedly connected with the positioning seat 6 of above-mentioned lead screw transmission mechanism, another
Individual workbench is rotated with the connection component of above-mentioned lead screw transmission mechanism and is connected, in this way, two workbenches can be relatively moved.
Above-mentioned picture pick-up device compared to prior art beneficial effect, with above-mentioned lead screw transmission mechanism compared to prior art
Beneficial effect it is identical, here is omitted.
Finally it should be noted that：Various embodiments above is only limited to illustrate the technical solution of the utility model, rather than to it
System；Although the utility model is described in detail with reference to foregoing embodiments, one of ordinary skill in the art should
Understand：It can still modify to the technical scheme described in foregoing embodiments, or to which part or whole
Technical characteristic carries out equivalent substitution；And these modifications or replacement, the essence of appropriate technical solution is departed from this practicality newly
The scope of each embodiment technical scheme of type.
Claims (10)
1. a kind of lead screw transmission mechanism, it is characterised in that including：Screw mandrel, polished rod, drive component and connection component, connection component
It is connected for being rotated with driven member；
Parallel interval is set pivot center, screw mandrel and the polished rod of connection component successively；
Connection component is provided with screwed hole, and the cross section of screwed hole is semicircle, and the internal thread of screwed hole can be outer with screw mandrel
Screw thread is engaged or separated；
Drive component is connected with polished rod and can drive polished rod moving radially along polished rod；Polished rod can be abutted simultaneously with connection component
Can drive connection component relative to driven member rotate, and then so that the internal thread of screwed hole engaged with the external screw thread of screw mandrel or
Separation；
When the external screw thread of screw mandrel is engaged with the internal thread of screwed hole, screw mandrel being capable of drive connection component synchronization drive driven member
Along the axial movement of screw mandrel；
When the external screw thread of screw mandrel is separated with the internal thread of screwed hole, connection component and polished rod abut and can synchronously drive and driven
Axial movement of the moving part along polished rod.
2. lead screw transmission mechanism according to claim 1, it is characterised in that connection component includes connecting portion and abutting part；
Connecting portion includes the first end that is oppositely arranged and the second end, and first end, which is used to rotate with driven member, be connected, the second end and
Abutting part is connected；
Screwed hole is located between first end and the second end.
3. lead screw transmission mechanism according to claim 1, it is characterised in that drive component includes the driving wheel with polished rod grafting；
Driving wheel can drive polished rod to be revolved round the sun around the center of rotation of driving wheel, and then so that polished rod drive connection component is relative to quilt
Actuator is rotated.
4. lead screw transmission mechanism according to claim 3, it is characterised in that driving wheel is two；
The two ends of two driving wheels and polished rod correspond grafting.
5. lead screw transmission mechanism according to claim 3, it is characterised in that the also hand including being connected and being coaxially disposed with screw mandrel
Neck is provided with wheel, handwheel；
Drive component also includes the operation knob for being connected and being coaxially disposed with driving wheel；
When operation knob is located at initial position, the internal thread of screwed hole is engaged with the external screw thread of screw mandrel；
When operation knob and neck clamping, the internal thread of screwed hole is separated with the external screw thread of screw mandrel.
6. lead screw transmission mechanism according to claim 5, it is characterised in that also including positioning seat, screw mandrel and handwheel are located at respectively
The both sides of positioning seat, screw mandrel and handwheel are with positioning seat grafting and can be rotated relative to positioning seat；
Driving wheel and operation knob are located at the both sides of positioning seat respectively, driving wheel and operation knob with positioning seat grafting and equal energy
It is enough to be rotated relative to positioning seat.
7. lead screw transmission mechanism according to claim 4, it is characterised in that also two positioning seats including being oppositely arranged；
The two ends of screw mandrel correspond grafting with two positioning seats and screw mandrel can be rotated relative to positioning seat；
Two driving wheels and two positioning seats correspond grafting and driving wheel can be rotated relative to positioning seat.
8. lead screw transmission mechanism according to claim 2, it is characterised in that along first end to the bearing of trend at the second end, is abutted
The thickness in portion gradually successively decreases.
9. a kind of workbench module, it is characterised in that include such as any one of claim 1-8 lead screw transmission mechanism.
10. a kind of picture pick-up device, it is characterised in that include such as any one of claim 1-8 lead screw transmission mechanism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720076400.XU CN206398028U (en) | 2017-01-19 | 2017-01-19 | Lead screw transmission mechanism, workbench module and picture pick-up device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720076400.XU CN206398028U (en) | 2017-01-19 | 2017-01-19 | Lead screw transmission mechanism, workbench module and picture pick-up device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206398028U true CN206398028U (en) | 2017-08-11 |
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ID=59518965
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720076400.XU Active CN206398028U (en) | 2017-01-19 | 2017-01-19 | Lead screw transmission mechanism, workbench module and picture pick-up device |
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| CN (1) | CN206398028U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106678304A (en) * | 2017-01-19 | 2017-05-17 | 苏州光照精密仪器有限公司 | Lead screw driving mechanism, workbench module and image pick-up equipment |
-
2017
- 2017-01-19 CN CN201720076400.XU patent/CN206398028U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106678304A (en) * | 2017-01-19 | 2017-05-17 | 苏州光照精密仪器有限公司 | Lead screw driving mechanism, workbench module and image pick-up equipment |
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