CN108748166A - A kind of restructural parallel connection platform of few branch - Google Patents
A kind of restructural parallel connection platform of few branch Download PDFInfo
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- CN108748166A CN108748166A CN201811022454.3A CN201811022454A CN108748166A CN 108748166 A CN108748166 A CN 108748166A CN 201811022454 A CN201811022454 A CN 201811022454A CN 108748166 A CN108748166 A CN 108748166A
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- connecting plate
- restructural
- parallel connection
- platform
- block
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25J—MANIPULATORS; CHAMBERS PROVIDED WITH MANIPULATION DEVICES
- B25J9/00—Programme-controlled manipulators
- B25J9/16—Programme controls
- B25J9/1615—Programme controls characterised by special kind of manipulator, e.g. planar, scara, gantry, cantilever, space, closed chain, passive/active joints and tendon driven manipulators
- B25J9/1623—Parallel manipulator, Stewart platform, links are attached to a common base and to a common platform, plate which is moved parallel to the base
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25J—MANIPULATORS; CHAMBERS PROVIDED WITH MANIPULATION DEVICES
- B25J9/00—Programme-controlled manipulators
- B25J9/16—Programme controls
- B25J9/1615—Programme controls characterised by special kind of manipulator, e.g. planar, scara, gantry, cantilever, space, closed chain, passive/active joints and tendon driven manipulators
- B25J9/1617—Cellular, reconfigurable manipulator, e.g. cebot
Abstract
The present invention discloses a kind of restructural parallel connection platform of few branch, pass through more restructural branch chain links between upper mounting plate and lower platform, by the way that prismatic pair toggles between revolute pair and the second connecting plate and third connecting plate between the first connecting plate and the second connecting plate in every restructural branch, coordinate the revolute pair between revolute pair and third connecting plate and the lower platform between the first connecting plate and upper mounting plate, the reconfigurable function of parallel connection platform is just realized by three restructural branches, it can be according to different work requirements, by workbench in 3-RPS, 2-RPS-RRS, flexible conversion between 2-RRS-RPS and 3-RRS configurations, with stronger adaptability；And the parallel connection platform can adjust working space and bearing capacity by changing configuration in the process of work, not only structural rearrangement is simple, but also can keep preferable bearing capacity but also change working space by a relatively large margin, has stronger flexibility and practicability.
Description
Technical field
The present invention relates to a kind of parallel connection platforms, more particularly to a kind of restructural parallel connection platform of few branch.
Background technology
Parallel institution (PM) is the closed loop moving system being made of multiple parallel branches, i.e., by one end of multiple parallel branches
Be connected with an end effector (moving platform) composition simultaneously.Due to parallel institution compare with traditional serial mechanism, have more
Big rigidity, load and higher precision, therefore the successful application from Steward mechanisms on Tire testing and flight simulator
Start, parallel institution becomes always the object of many scholars research.Currently, existing parallel institution, is all often to pass through adjusting
The area of fixed platform changes working space, should although improve the working space of parallel connection platform to a certain extent
Parallel connection platform takes up a large area, and working space adjustable range is smaller, and bearing capacity is poor, and therefore, design one kind can be kept
The parallel connection platform that preferable bearing capacity can change working space by a relatively large margin again is a technical problem to be solved urgently.
Invention content
That the object of the present invention is to provide a kind of structural rearrangements is simple, can keep preferable bearing capacity but also by a relatively large margin
Change the restructural parallel connection platform of few branch of working space.
To achieve the above object, the present invention provides following schemes：
The present invention provides a kind of few branch restructural parallel connection platform, including upper mounting plate and lower platform, the upper mounting plate and institute
It states between lower platform through more restructural branch chain links；The restructural branch includes the first connecting plate connected in sequence,
Two connecting plates and third connecting plate, the bottom end of the third connecting plate with the lower platform for being rotatably connected, the third
The top of connecting plate is connected with sliding bar, the bottom of second connecting plate offer with the matched long sliding slot of the sliding bar,
The sliding bar is slidably connected in the long sliding slot, opens up short groove at the top of second connecting plate, in the short groove
A sliding block is slidably connected, and the top of the sliding block can stretch out the interior top end face of the short groove and be connect with described first
The bottom end of plate is rotatably connected, and the bottom end of the sliding block is connect with the interior bottom face of the short groove by a spring；The cunning
The outer surface of block is fixedly installed block, and the top outer surface of the sliding bar is fixedly installed push rod, and the push rod is by pushing away
The separation that the block realizes second connecting plate and first connecting plate is moved, when the push rod does not push the block
When, the sliding block makes the top end face of the bottom face and second connecting plate of first connecting plate under the action of spring
It fits closely, and limits first connecting plate and generate rotation relative to the top of the sliding block；The top of first connecting plate
End is connect by ball pair with the upper table surface.
Optionally, the upper mounting plate is triangle upper mounting plate, and the lower platform is triangle lower platform, and the triangle
The area of upper mounting plate is less than the area of the triangle lower platform, and the triangle upper mounting plate and the triangle lower platform pass through
Three restructural branch chain links.
Optionally, the bottom end of the third connecting plate of three restructural branches by the first axis pin with it is described under
Platform is rotatably connected, and three first axis pins are respectively welded at three corners of the lower platform；Three described restructural
The bottom end of the third connecting plate of branch is welded with first connecting rod, and the bottom end of the first connecting rod offers first through hole,
The first through hole is for being set in first axis pin.
Optionally, the top of first connecting plate of three restructural branches passes through the ball pair and described three
Angular upper mounting plate is detachably connected, and the ball pair includes rotating sphere and the outer layer ball-and-socket that is connected with the rotating sphere,
The outer layer ball-and-socket of three ball pairs is respectively welded at three corners of the upper mounting plate, secondary described turn of three balls
Dynamic sphere is welded on the top of first connecting plate of three restructural branches by second connecting rod respectively.
Optionally, the upper table surface and the following table are equilateral triangle table top.
Optionally, the sliding block is T-shaped slider, and the T-shaped slider includes horizontal block and vertical blocks, the horizontal block welding
The block is welded on the bottom end of the vertical blocks, the outer surface of the horizontal block；The top of the vertical blocks can be stretched out
The interior top end face of the short groove and the outside for extending to second connecting plate, the top of the vertical blocks offer second and lead to
The bottom end in hole, first connecting plate is welded with third connecting rod, and third through-hole is offered on the third connecting rod, and the third is logical
Hole is rotatablely connected with second through-hole by the second axis pin；The interior top end face of the short groove offers fourth hole, described
Fourth hole extends to the tip exterior of second connecting plate, when the push rod does not push the block, second pin
Axis enters through the fourth hole in the short groove under the action of spring limits first connecting plate relative to institute
The top for stating sliding block generates rotation.
Optionally, the push rod is T shape push rods, and the T shapes push rod includes horizon bar and vertical bar, the horizon bar welding
On the top of the vertical bar, the bottom end of the vertical bar is welded on the outer surface on the sliding bar top；The T shapes push rod position
In outside the outer surface of second connecting plate, and in the T shapes push rod and the block be generally aligned in the same plane.
Optionally, the top of the spring is welded with the sliding block, the interior bottom of the bottom end of the spring and the short groove
It welds end face.
The present invention achieves following technique effect compared with the existing technology：
The restructural parallel connection platform of few branch provided by the invention, passes through revolute pair between the first connecting plate and the second connecting plate
Prismatic pair toggles between the second connecting plate and third connecting plate, coordinates the rotation between first connecting plate and upper mounting plate
The secondary and revolute pair between third connecting plate and lower platform, weighing for parallel connection platform is just realized by three restructural branches
Structure function, can be according to different work requirements, by workbench in 3-RPS, 2-RPS-RRS, 2-RRS-RPS and 3-RRS structure
Flexible conversion between type has stronger adaptability；The parallel connection platform can be adjusted by changing configuration in the process of work
Working space and bearing capacity, not only structural rearrangement is simple, but also can keep preferable bearing capacity but also change by a relatively large margin
Become working space, there is stronger flexibility and practicability.
Description of the drawings
It in order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, below will be to institute in embodiment
Attached drawing to be used is needed to be briefly described, it should be apparent that, the accompanying drawings in the following description is only some implementations of the present invention
Example, for those of ordinary skill in the art, without having to pay creative labor, can also be according to these attached drawings
Obtain other attached drawings.
Fig. 1 is the structural schematic diagram that the few restructural parallel connection platform of branch of the present invention is in 2-RPS-RRS configurations；
Fig. 2 is the structural schematic diagram of restructural branch in its natural state in the restructural parallel connection platform of the few branch of the present invention；
Fig. 3 is the vertical view of restructural branch in its natural state in the restructural parallel connection platform of the few branch of the present invention；
Fig. 4 is the structural schematic diagram of third connecting plate in the restructural parallel connection platform of the few branch of the present invention；
Fig. 5 is the structural schematic diagram of the second connecting plate in the restructural parallel connection platform of the few branch of the present invention；
Fig. 6 is the structural schematic diagram after restructural branch recombination in the restructural parallel connection platform of the few branch of the present invention；
Fig. 7 is the front view after restructural branch recombination in the restructural parallel connection platform of the few branch of the present invention；
Fig. 8 is the structural schematic diagram of sliding block in the restructural parallel connection platform of the few branch of the present invention；
Fig. 9 is the structural schematic diagram of lower platform in the restructural parallel connection platform of the few branch of the present invention；
Figure 10 is the structural schematic diagram of the first connecting plate in the restructural parallel connection platform of the few branch of the present invention；
Figure 11 is the structural schematic diagram of the restructural parallel connection platform 3-RPS configurations of the few branch of the present invention；
Figure 12 is the structural schematic diagram of the restructural parallel connection platform 3-RRS configurations of the few branch of the present invention；
Wherein, reference numeral is：1, upper mounting plate；2, lower platform；3, the first restructural branch；4, the second restructural branch；
5, the restructural branch of third；6, the first connecting plate；7, the second connecting plate；8, third connecting plate；9, long sliding slot；10, sliding bar；
11, push rod；12, short groove；13, sliding block；14, block；15, spring；16, the first axis pin；17, the second axis pin；18, ball pair；19,
First connecting rod；20, second connecting rod；21, third connecting rod；22, first through hole；23, the second through-hole；24, third through-hole；25, the 4th
Through-hole.
Specific implementation mode
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 describes, 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, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
That the object of the present invention is to provide a kind of structural rearrangements is simple, can keep preferable bearing capacity but also by a relatively large margin
Change the restructural parallel connection platform of few branch of working space.
To achieve the above object, the present invention provides following schemes：
The present invention provides a kind of few branch restructural parallel connection platform, including upper mounting plate and lower platform, upper mounting plate and lower platform
Between pass through more restructural branch chain links；Restructural branch includes the first connecting plate connected in sequence, the second connecting plate and
Three connecting plates, for being rotatably connected with lower platform, the top of third connecting plate is connected with sliding bar for the bottom end of third connecting plate,
The bottom of second connecting plate, which is offered, to be slidably connected to the matched long sliding slot of sliding bar, sliding bar in long sliding slot, the second connection
Short groove is opened up at the top of plate, a sliding block is slidably connected in short groove, and the top of sliding block can stretch out the interior top of short groove
End face is simultaneously rotatably connected with the bottom end of the first connecting plate, and the bottom end of sliding block and the interior bottom face of short groove are connected by a spring
It connects；The outer surface of sliding block is fixedly installed block, and the top outer surface of sliding bar is fixedly installed push rod, and push rod is kept off by pushing
Block realizes the separation of the second connecting plate and the first connecting plate, and when push rod does not push block, sliding block makes the under the action of the spring
The bottom face of one connecting plate and the top end face of the second connecting plate fit closely, and limit top of first connecting plate relative to sliding block
Generate rotation；The top of first connecting plate is connect by ball pair with upper table surface.
The restructural parallel connection platform of few branch provided by the invention, passes through revolute pair between the first connecting plate and the second connecting plate
Prismatic pair toggles between the second connecting plate and third connecting plate, coordinates the rotation between first connecting plate and upper mounting plate
The secondary and revolute pair between third connecting plate and lower platform, weighing for parallel connection platform is just realized by three restructural branches
Structure function, can be according to different work requirements, by workbench in 3-RPS, 2-RPS-RRS, 2-RRS-RPS and 3-RRS structure
Flexible conversion between type has stronger adaptability；The parallel connection platform can be adjusted by changing configuration in the process of work
Working space and bearing capacity, not only structural rearrangement is simple, but also can keep preferable bearing capacity but also change by a relatively large margin
Become working space, there is stronger flexibility and practicability.
In order to make the foregoing objectives, features and advantages of the present invention clearer and more comprehensible, below in conjunction with the accompanying drawings and specific real
Applying mode, the present invention is described in further detail.
Embodiment one：
As shown in Fig. 1~12, the present embodiment provides a kind of few restructural parallel connection platform of branch, including upper mounting plate 1 and lower flat
Platform 2 passes through more restructural branch chain links between upper mounting plate 1 and lower platform 2；Restructural branch includes the first company connected in sequence
Fishplate bar 6, the second connecting plate 7 and third connecting plate 8, the bottom end of third connecting plate 8 with lower platform 2 for being rotatably connected, third
The top of connecting plate 8 is connected with sliding bar 10, and the bottom of the second connecting plate 7 offers and the matched long sliding slot 9 of sliding bar 10, cunning
Lever 10 is slidably connected in long sliding slot 9, and sliding bar 10 forms prismatic pair with long sliding slot 9 and connect, the top of the second connecting plate 7
Open up short groove 12, as shown in Figure 2-5, the bottom end of long sliding slot 9 is opening, and long sliding slot 9 is three face slots, the top of long sliding slot 9 and
It is spaced between the bottom end of short groove 12 and is not connected to, short groove 12 is four sides enclosed slot, and a sliding block is slidably connected in short groove 12
13, and the top of sliding block 13 can stretch out the interior top end face of short groove 12 and be rotatably connected with the bottom end of the first connecting plate 6 and
Revolute pair is formed, as shown in figure 3, the bottom end of sliding block 13 is connect with the interior bottom face of short groove 12 by a spring 15；Sliding block 13
Outer surface be fixedly installed block 14, the top outer surface of sliding bar 10 is fixedly installed push rod 11, and push rod 11 passes through promotion
Block 14 realizes the separation of the second connecting plate 7 and the first connecting plate 6, and when push rod 11 does not push block 14, sliding block 13 is in spring
It fits closely the top end face of the bottom face and the second connecting plate 6 of the first connecting plate 6 under the action of 15, reaches the first connection of limitation
Plate 6 generates the effect of rotation relative to 13 top of sliding block；The top of first connecting plate 6 is connect by ball pair 18 with upper table surface 1.
In this specific embodiment, upper mounting plate 1 is triangle upper mounting plate, and lower platform 2 is triangle lower platform, and triangle
The area of upper mounting plate is less than the area of triangle lower platform, and triangle upper mounting plate and triangle lower platform pass through three restructural branch
Chain link, as shown in Figure 1, three restructural branches be respectively the first restructural branch 3, the second restructural branch 4 and third can
Reconstruct branch 5, the first restructural branch 3, the second restructural branch 4 and third 5 three branches of restructural branch structure and
Size is identical.
Further, as shown in figs. 2 to 4, the first restructural branch 3, the second restructural branch 4 and the restructural branch of third
The bottom end of third connecting plate 8 in chain 5 is rotatably connected by the first axis pin 16 with lower platform 2, and three first axis pins 16 divide
It is not welded on three corners of lower platform 2；The bottom end of the third connecting plate 8 of three restructural branches is welded with the first company simultaneously
The bottom end of bar 19, first connecting rod 19 offers first through hole 22, as shown in Figure 1, first through hole 22 is for being set in the first axis pin
On 16, so that third connecting plate 8 can be rotated around the first axis pin 16.
Further, as shown in Fig. 2,3,6,10, the top of the first connecting plate 6 of three restructural branches passes through ball pair
18 connect with triangle upper mounting plate, the outer layer ball-and-socket that wherein ball pair 18 is connected including rotating sphere and with rotating sphere, and three
The outer layer ball-and-socket of a ball pair 18 is respectively welded at three corners of upper mounting plate 1, and the rotating sphere of three ball pairs 18 passes through respectively
Two connecting rods 20 are welded on the top of the first connecting plate 6 of three restructural branches.Ball pair 18 is well known bulb auxiliary structure,
Structure composition, connection relation and operation principle are it is known that details are not described herein.
Further, as shown in Figure 1, upper table surface 1 and following table 2 are both preferably equilateral triangle table top.
Further, as can be seen from figures 6 to 8, sliding block 13 is T-shaped slider, and T-shaped slider includes horizontal block and vertical blocks, level
Block 14 is welded in block welding on the bottom end of vertical blocks, the outer surface of horizontal block；The top of vertical blocks can stretch out short groove 12
Interior top end face and extend to the outside of the second connecting plate 7, the top of vertical blocks offers the second through-hole 23, the first connecting plate 6
Bottom end be welded with third connecting rod 21, offer third through-hole 24 on third connecting rod 21, third through-hole 24 and the second through-hole 23 are logical
The rotation connection of the second axis pin 17 is crossed, it is two that wherein third connecting rod 21, which is arranged in parallel, and the first connecting plate 6 and the second connecting plate 7
Between when being connected by the second axis pin 17, two third connecting rods 21 are distributed in the both sides of 13 vertical blocks of sliding block respectively.Such as Fig. 5 institutes
Showing, the interior top end face of short groove 12 offers fourth hole 25, and fourth hole 25 extends to the tip exterior of the second connecting plate 7,
13 vertical blocks of sliding block are extend out to outside the second connecting plate 7 by the fourth hole 25, when push rod 11 does not push block 14, the
Two axis pins 17 enter in short groove 12 through fourth hole 25 to limit the first connecting plate 6 relative to sliding block under the action of spring 15
13 top generates rotation.In this specific embodiment, spring 15 is constantly in tensional state so that sliding block 13 not by appoint
In the case of what external force, the first connecting plate 6 can fit closely under the reply force effect of spring 15 with the second connecting plate 7, this
Spring 15 under state becomes natural drawing state, and the first connecting plate 6 and the second connecting plate 7 are considered as same plate, and first connects
Any relative rotation is not will produce between fishplate bar 6 and the second connecting plate 7.
Further, as shown in figure 4, push rod 11 is T shape push rods, T shape push rods include horizon bar and vertical bar, horizon bar weldering
It is connected on the top of vertical bar, the bottom end of vertical bar is welded on the outer surface on 10 top of sliding bar；As seen in figs, T shapes push rod
Outside the outer surface of the second connecting plate 7, and in T shapes push rod and block 14 be generally aligned in the same plane, in order to which T shape push rods are to block
14 generate thrust.
Further, the top of spring 15 is welded with sliding block 13, and the bottom end of spring 15 is welded with the interior bottom face of short groove 12
It connects.
The application method of the present embodiment and use principle are illustrated below.
When restructural branch descends in the raw, push rod 11 is detached with block 13, as shown in Fig. 2, at this point, sliding bar
10 can slide in the long sliding slot 9 on the second connecting plate 7, and prismatic pair company is belonged between the second connecting plate 7 and third connecting plate 8
It connects；Spring 15 is preferably welded between short groove 12 and sliding block 13, when spring 15 is in natural drawing state, if without outer masterpiece
For spring 15, then sliding block 13 is entirely limited in short groove 12 by spring 15, so that the company of connection sliding block 13 and first will be used for
Second axis pin 17 of fishplate bar 6 is also limited in short groove 12, at this point, the first connecting plate 6 and sliding block 13 can not be around the second axis pins
17 rotations, in this case, the first connecting plate 6 and the second connecting plate 7 can be considered same plate, the plate and third connecting plate
8 be prismatic pair connection.And when sliding bar 10 is slowly moved forward along long sliding slot 9, push rod 11 can slowly close to block 14, when
When 11 contact blocks 14 of push rod, if sliding bar 10 continues to move along, block 14 can be under the thrust of push rod 11 forward
It is mobile, to be moved forward along short groove 12 with movable slider 13, since 12 length of short groove has certain limitations, when the water of sliding block 13
When plain block is moved to the top of short groove 12, sliding block 13, which is blocked, to be continued to move to, but at this time the second axis pin 17 completely from
Short groove 12 is opened, the first connecting plate 6 can be rotated around the second axis pin 17, at this point, the second connecting plate 7 and third connecting plate 8 are visual
For same plate, which is that revolute pair is connect with the first connecting plate 8, as shown in Figure 6.In conclusion restructural branch reconstruct
Process be exactly that prismatic pair is become to the process of revolute pair, when need become prismatic pair again from revolute pair when, it is only necessary to by push rod 11
It is moved to the direction far from block 14, spring 15 can retract sliding block 13 in short groove 12, to limit the second axis pin 17 again
It makes in short groove 12, the first connecting plate 6 can not be rotated around the second axis pin 17 at this time, and restructural branch is restored to nature.
In the present embodiment, the principle of three restructural branches is identical, can recombinate component during movement, keeps component topological
Structure changes, to the movenent performance of changing mechanism.
When the first restructural branch 3, the second restructural branch 4 and the restructural branch 5 of third are all in above-mentioned natural shape
When under state, then parallel connection platform is in 3-RPS configurations (wherein R represents revolute pair, and P represents prismatic pair, and S represents ball pair, " 3-RPS structures
Type " refers on each restructural branch while including revolute pair, prismatic pair and ball pair), as shown in figure 11；And when first can
The recombination of 3 component of branch is reconstructed, revolute pair is become from prismatic pair, and the second restructural branch 4 and the restructural branch 5 of third are kept
When nature, parallel connection platform is in 2-RPS-RRS configurations (at this point, the prismatic pair P conversions on the first restructural branch 3 at this time
For revolute pair R, and other two restructural branches keep " RPS " nature respectively), as shown in Figure 1；Correspondingly, three
Prismatic pair on any one of restructural branch becomes revolute pair, and other two restructural branches keep nature, belong to
In 2-RPS-RRS configurations.Prismatic pair in thering are two restructural branches to recombinate in three restructural branches under natural conditions
Become revolute pair, another when keeping nature, platform is in 2-RRS-RPS configurations, as shown in figure 12, first can weigh at this time
Structure branch 3, the recombination of the second restructural branch 4 make prismatic pair become revolute pair, and the restructural branch of third 5 is in the raw,
Parallel connection platform is in 2-RRS-RPS configurations；Finally, when three restructural branches all components recombinate, parallel connection platform is in 3-RRS
Configuration.
It can be seen that the restructural parallel connection platform of few branch provided by the invention, passes through the first connecting plate and the second connecting plate
Between between revolute pair and the second connecting plate and third connecting plate prismatic pair toggle, coordinate first connecting plate and upper mounting plate
Between revolute pair and third connecting plate and lower platform between revolute pair, just realize parallel connection by three restructural branches
The reconfigurable function of platform, can be according to different work requirements, by workbench in 3-RPS, 2-RPS-RRS, 2-RRS-RPS
The flexible conversion between 3-RRS configurations has stronger adaptability；The parallel connection platform can be in the process of work by changing structure
Type adjusts working space and bearing capacity, and not only structural rearrangement is simple, and can keep preferable bearing capacity but compared with
Working space is significantly alterred, there is stronger flexibility and practicability.
It should be noted that upper lower platform is not limited to equilateral triangle in the present invention, what is carried out according to actual demand is suitable
It should sexually revise and be within the scope of the invention；The first connecting plate is not limited to upper mounting plate in the restructural branch of the present invention
The ball pair connection in embodiment is stated, between the first connecting plate and the second connecting plate and between third connecting plate and lower platform also
Axis pin connection in being not limited to the above embodiments, the adaptive change carried out according to actual demand is in the protection model of the present invention
In enclosing；In addition, the push rod in the present invention is not limited to T shapes, sliding block is also not limited to T shapes, and what is carried out according to actual demand is suitable
It should sexually revise and be within the scope of the invention；Finally, prismatic pair between the first connecting plate and the second connecting plate in the present invention
Switching with revolute pair be not limited to by above-mentioned sliding block and spring coordinate in the way of, the adaptability that is carried out according to actual demand
Change is within the scope of the invention.
Specific case is applied in the present invention, and principle and implementation of the present invention are described, above example
Illustrate the method and its core concept for being merely used to help understand the present invention；Meanwhile for those of ordinary skill in the art, according to
According to the thought of the present invention, there will be changes in the specific implementation manner and application range.In conclusion the content of the present specification
It should not be construed as limiting the invention.
Claims (8)
1. a kind of restructural parallel connection platform of few branch, it is characterised in that：Including upper mounting plate and lower platform, the upper mounting plate and described
Pass through more restructural branch chain links between lower platform；The restructural branch includes the first connecting plate connected in sequence, second
Connecting plate and third connecting plate, for being rotatably connected with the lower platform, the third connects for the bottom end of the third connecting plate
The top of fishplate bar is connected with sliding bar, and the bottom of second connecting plate offers and the matched long sliding slot of the sliding bar, institute
It states sliding bar to be slidably connected in the long sliding slot, short groove is opened up at the top of second connecting plate, is slided in the short groove
It is dynamic to be connected with a sliding block, and the top of the sliding block can stretch out the short groove interior top end face and with first connecting plate
Bottom end be rotatably connected, the bottom end of the sliding block is connect with the interior bottom face of the short groove by a spring；The sliding block
Outer surface be fixedly installed block, the top outer surface of the sliding bar is fixedly installed push rod, and the push rod passes through promotion
The block realizes the separation of second connecting plate and first connecting plate, when the push rod does not push the block,
The sliding block makes the top end face of the bottom face and second connecting plate of first connecting plate tight under the action of the spring
Closely connected conjunction, and limit first connecting plate and generate rotation relative to the top of the sliding block；The top of first connecting plate
It is connect with the upper table surface by ball pair.
2. the restructural parallel connection platform of few branch according to claim 1, it is characterised in that：The upper mounting plate is on triangle
Platform, the lower platform is triangle lower platform, and the area of the triangle upper mounting plate is less than the triangle lower platform
Area, the triangle upper mounting plate and the triangle lower platform pass through three restructural branch chain links.
3. the restructural parallel connection platform of few branch according to claim 2, it is characterised in that：Three restructural branches
The bottom end of the third connecting plate is rotatably connected by the first axis pin and the lower platform, three first axis pin difference
It is welded on three corners of the lower platform；The bottom end of the third connecting plate of three restructural branches is welded with
The bottom end of one connecting rod, the first connecting rod offers first through hole, and the first through hole is for being set in first axis pin.
4. the restructural parallel connection platform of few branch according to claim 3, it is characterised in that：Three restructural branches
The top of first connecting plate is detachably connected by the ball pair and the triangle upper mounting plate, and the ball pair includes turning
Dynamic sphere and the outer layer ball-and-socket being connected with the rotating sphere, the outer layer ball-and-socket of three ball pairs are respectively welded at
The rotating sphere in three corners of the upper mounting plate, three ball pairs is welded on by second connecting rod described in three respectively
The top of first connecting plate of restructural branch.
5. the restructural parallel connection platform of few branch according to claim 4, it is characterised in that：The upper table surface and the leave from office
Face is equilateral triangle table top.
6. the restructural parallel connection platform of few branch according to claim 1, it is characterised in that：The sliding block is T-shaped slider, institute
It includes horizontal block and vertical blocks to state T-shaped slider, and the horizontal block is welded on the bottom end of the vertical blocks, the appearance of the horizontal block
The block is welded on face；The top of the vertical blocks can stretch out the interior top end face of the short groove and extend to described second
The top of the outside of connecting plate, the vertical blocks offers the second through-hole, and the bottom end of first connecting plate is welded with third company
Bar, third through-hole is offered on the third connecting rod, and the third through-hole passes through the rotation of the second axis pin with second through-hole and connects
It connects；The interior top end face of the short groove offers fourth hole, and the fourth hole extends to the top of second connecting plate
Outside, when the push rod does not push the block, second axis pin is under the action of the spring through the fourth hole
The top that first connecting plate is limited in into the short groove relative to the sliding block generates rotation.
7. the restructural parallel connection platform of few branch according to claim 6, it is characterised in that：The push rod is T shape push rods, institute
It includes horizon bar and vertical bar to state T shape push rods, and the horizon bar is welded on the top of the vertical bar, the bottom end of the vertical bar
It is welded on the outer surface on the sliding bar top；The T shapes push rod is located at outside the outer surface of second connecting plate, and the T
Shape push rod is generally aligned in the same plane interior with the block.
8. the restructural parallel connection platform of few branch according to claim 1, it is characterised in that：The top of the spring with it is described
Sliding block welds, and the bottom end of the spring and the interior bottom face of the short groove weld.
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