CN207747013U - A kind of big stroke precision is to bit platform - Google Patents
A kind of big stroke precision is to bit platform Download PDFInfo
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- CN207747013U CN207747013U CN201820037231.3U CN201820037231U CN207747013U CN 207747013 U CN207747013 U CN 207747013U CN 201820037231 U CN201820037231 U CN 201820037231U CN 207747013 U CN207747013 U CN 207747013U
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- China
- Prior art keywords
- chuck
- fixed seat
- platform
- collar
- boss
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Abstract
The utility model provides a kind of big stroke precision to bit platform, belongs to field of mechanical technique.It solves the technical problems such as existing precision is smaller to the moving platform slewing area of bit platform.This big stroke precision includes moving platform and fixed seat to bit platform, fixed seat is in annular shape, the top slide of fixed seat be connected with it is several can be around the chuck of fixed seat circumferentially rotated, it is respectively and fixedly provided with guide rail on each chuck, sliding block is slidably connected respectively on each guide rail, the top of each sliding block is rotatably connected to collar, and each collar is respectively sleeved at the top of corresponding sliding block, and each collar is rotatablely connected with moving platform.This can realize the translation and rotation of moving platform in a wider context to bit platform, have the working space of bigger and contraposition is more accurate.
Description
Technical field
The utility model belongs to field of mechanical technique, is related to a kind of big stroke precision to bit platform.
Background technology
Currently, in the prior art, using in the high-accuracy equipment to bit platform, alignment system mostly uses greatly parallel institution,
The upper and lower platform of parallel institution is supported with mutually independent Parallel Component, therefore is stablized relatively with structure, the spy that rigidity is big
Point, further, since having cyclic annular closed chain to constrain between rack and end effector so that parallel institution has the carrying energy of bigger
Power, because there is no the accumulation of the error in each joint and enlarge-effects, therefore parallel institution error is small, precision is high；The drive of parallel institution
Dynamic part is easy to install in alleviating exercise load in rack, has a preferable power performance, parallel-connection structure have service speed it is high,
Advantage compact-sized, rigidity is high, large carrying capacity and dynamic performance are good.
But the precision of the prior art is to the shortcoming of bit platform：Movement branched chain and fixed platform of the precision to bit platform
Connecting pin mostly uses greatly attachment, and such structure limits the slewing area of movement branched chain, and then moving platform is caused to rotate
Range is small, limits the working space of parallel connection platform in this way.
Invention content
The utility model existing above problem in view of the prior art, provides a kind of big stroke precision to bit platform, this
Utility model the technical problem to be solved is that：How accurate motion range to bit platform is improved.
The purpose of this utility model can be realized by following technical proposal：
A kind of big stroke precision is to bit platform, including moving platform and fixed seat, which is characterized in that the fixed seat is in annulus
Shape, the top slide of the fixed seat be connected with it is several can be on the chuck of the fixed seat circumferentially rotated, each chuck
It is fixed with guide rail, slidably connects sliding block on each guide rail respectively, the top of each sliding block is rotatably connected to collar, each collar difference
It is set in the top of corresponding sliding block, each collar is rotatablely connected with the moving platform.
Its operation principle is：This includes moving platform and in circular fixed seat to bit platform, and each chuck is led with corresponding
Rail, sliding block and collar component movement branch, each chuck are driven by servo motor respectively, when work, in the driving pair of each servo motor
The chuck answered is circumferentially rotated along fixed seat, and each chuck drives corresponding guide rail movement, during each guide rail movement, each guide rail
Upper corresponding sliding block slides respectively, to drive moving platform to be rotated and be moved, meanwhile, moving platform is also relative to each axis
Ring generates rotation, this can either mutually be rotated between moving platform and fixed seat to bit platform, can also generate X-direction and the side Y
To movement, can realize the translation and rotation of moving platform in a wider context, the working space with bigger, each chuck difference
It is driven by servo motor, contraposition is more accurate.
In a kind of above-mentioned big stroke precision in bit platform, the lateral surface of each chuck is arc-shaped and each chuck with it is solid
The inner wall of reservation mutually reclines.The structure can make chuck be not susceptible to shake during rotation, improve when chuck rotates
Stability.
In a kind of above-mentioned big stroke precision in bit platform, the top of the fixed seat has in the first convex of circular ring shape
Platform all has sliding slot at the top of each chuck, and the first boss is embedded in the sliding slot on each chuck, and the inner wall of each sliding slot is in
It arc and mutually reclines with the lateral surface of the first boss.The inner wall of each sliding slot reclines with first boss cooperation, the structure
Stability when chuck rotation can be further increased.
In a kind of above-mentioned big stroke precision in bit platform, it is convex that cylindrical second is all had at the top of each sliding block
Platform, each collar are respectively sleeved in corresponding second boss and are rotatablely connected with corresponding second boss.
In a kind of above-mentioned big stroke precision in bit platform, each collar is clearance fit with corresponding second boss.
In a kind of above-mentioned big stroke precision in bit platform, the bottom of each guide rail is respectively and fixedly provided with pedestal, in each pedestal
Portion is fixedly connected with at the top of corresponding chuck.Guide rail can be fixed on the base by each guide rail by bolted connection,
It can also be fixed on the base by welding, guide rail is fixed on the top of chuck by pedestal, and installation is more stablized；Card
It is fixed on the middle part of pedestal at the top of disk, the stress of guide rail can be better balanced.
Compared with prior art, as follows the advantages of the utility model：
1, this can realize the translation and rotation of moving platform in a wider context to bit platform, and the work with bigger is empty
Between.
2, this is driven each chuck of bit platform by servo motor respectively, and contraposition is more accurate.
Description of the drawings
Fig. 1 is this structural schematic diagram to bit platform.
Fig. 2 is the structural schematic diagram of movement branched chain.
Fig. 3 is the schematic diagram that chuck is connected with fixed seat.
Fig. 4 is the schematic diagram that guide rail is connected with sliding block.
In figure, 1, moving platform；2, fixed seat；2a, first boss；3, chuck；3a, sliding slot；4, guide rail；5, sliding block；5a,
Two boss；6, collar；7, pedestal.
Specific implementation mode
It is specific embodiment of the utility model and in conjunction with attached drawing below, the technical solution of the utility model is made further
Description, but the utility model is not limited to these examples.
As shown in Figs. 1-2, this big stroke precision includes moving platform 1 and fixed seat 2 to bit platform, and fixed seat 2 is in annular shape,
The top slide of fixed seat 2 is connected with several can be respectively and fixedly provided on the chuck 3 of fixed seat 2 circumferentially rotated, each chuck 3 and leads
Rail 4 slidably connects sliding block 5 on each guide rail 4 respectively, and the top of each sliding block 5 is rotatably connected to collar 6, and each collar 6 covers respectively
It is located at the top of corresponding sliding block 5, each collar 6 is rotatablely connected with moving platform 1.
As Figure 2-3, preferably, the lateral surface of each chuck 3 is arc-shaped and each chuck 3 is interior with fixed seat 2
Wall mutually reclines.The structure can make chuck 3 be not susceptible to shake during rotation, improve stability when chuck 3 rotates.
As Figure 2-3, in the present embodiment, the top of fixed seat 2 has the first boss 2a in circular ring shape, each chuck 3
Top all have sliding slot 3a, first boss 2a is embedded in the sliding slot 3a on each chuck 3, and the inner wall of each sliding slot 3a is arc-shaped
And it mutually reclines with the lateral surface of first boss 2a.The inner wall of each sliding slot 3a reclines with first boss 2a cooperation, the structure energy
Enough further increase stability when chuck 3 rotates.
As shown in figure 4, the top of each sliding block 5 all has cylindrical second boss 5a, each collar 6 is respectively sleeved at pair
It is rotatablely connected on the second boss 5a answered and with corresponding second boss 5a.
Preferably, each collar 6 is clearance fit with corresponding second boss 5a.
As shown in Fig. 2, in the present embodiment, the bottom of each guide rail 4 is respectively and fixedly provided with pedestal 7, the middle part of each pedestal 7 with it is corresponding
The top of chuck 3 be fixedly connected with.Guide rail 4 can be fixed on pedestal 7 by each guide rail 4 by bolted connection, can also
It is fixed on by welding on pedestal 7, guide rail 4 is fixed on the top of chuck 3 by pedestal 7, and installation is more stablized；Chuck
3 top is fixed on the middle part of pedestal 7, and the stress of guide rail 4 can be better balanced.
The specific embodiments described herein are merely examples of the spirit of the present invention.The utility model institute
Belonging to those skilled in the art can make various modifications or additions to the described embodiments or using similar
Mode substitute, but without departing from the spirit of the present application or beyond the scope of the appended claims.
Claims (6)
1. a kind of big stroke precision is to bit platform, including moving platform and fixed seat, which is characterized in that the fixed seat is in annulus
Shape, the top slide of the fixed seat be connected with it is several can be on the chuck of the fixed seat circumferentially rotated, each chuck
It is fixed with guide rail, slidably connects sliding block on each guide rail respectively, the top of each sliding block is rotatably connected to collar, each collar difference
It is set in the top of corresponding sliding block, each collar is rotatablely connected with the moving platform.
2. a kind of big stroke precision according to claim 1 is to bit platform, which is characterized in that the lateral surface of each chuck is in
Arc and each chuck mutually reclines with the inner wall of fixed seat.
3. a kind of big stroke precision according to claim 1 is to bit platform, which is characterized in that the top of the fixed seat has
There is the first boss in circular ring shape, all has sliding slot at the top of each chuck, the first boss is embedded in the sliding slot on each chuck
Interior, the inner wall of each sliding slot is arc-shaped and mutually reclines with the lateral surface of the first boss.
4. a kind of big stroke precision according to claim 1 is to bit platform, which is characterized in that all had at the top of each sliding block
Cylindrical second boss, each collar, which is respectively sleeved in corresponding second boss and is rotated with corresponding second boss, to be connected
It connects.
5. a kind of big stroke precision according to claim 4 is to bit platform, which is characterized in that each collar and corresponding second
Boss is clearance fit.
6. a kind of big stroke precision according to claim 1 is to bit platform, which is characterized in that the bottom of each guide rail is fixed
There are pedestal, the middle part of each pedestal to be fixedly connected with at the top of corresponding chuck.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820037231.3U CN207747013U (en) | 2018-01-10 | 2018-01-10 | A kind of big stroke precision is to bit platform |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820037231.3U CN207747013U (en) | 2018-01-10 | 2018-01-10 | A kind of big stroke precision is to bit platform |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207747013U true CN207747013U (en) | 2018-08-21 |
Family
ID=63152459
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820037231.3U Expired - Fee Related CN207747013U (en) | 2018-01-10 | 2018-01-10 | A kind of big stroke precision is to bit platform |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207747013U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110014403A (en) * | 2018-01-10 | 2019-07-16 | 广州中国科学院先进技术研究所 | A kind of big stroke precision is to bit platform |
| CN111142570A (en) * | 2018-11-02 | 2020-05-12 | 广州中国科学院先进技术研究所 | High-precision parallel platform with alignment demonstration function |
-
2018
- 2018-01-10 CN CN201820037231.3U patent/CN207747013U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110014403A (en) * | 2018-01-10 | 2019-07-16 | 广州中国科学院先进技术研究所 | A kind of big stroke precision is to bit platform |
| CN110014403B (en) * | 2018-01-10 | 2024-07-05 | 广州中国科学院先进技术研究所 | Large-stroke precise alignment platform |
| CN111142570A (en) * | 2018-11-02 | 2020-05-12 | 广州中国科学院先进技术研究所 | High-precision parallel platform with alignment demonstration function |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180821 Termination date: 20220110 |