CN115213932A - Coaxial clamping device - Google Patents
Coaxial clamping device Download PDFInfo
- Publication number
- CN115213932A CN115213932A CN202210827849.0A CN202210827849A CN115213932A CN 115213932 A CN115213932 A CN 115213932A CN 202210827849 A CN202210827849 A CN 202210827849A CN 115213932 A CN115213932 A CN 115213932A
- Authority
- CN
- China
- Prior art keywords
- clamping device
- coaxial
- pressing
- ball
- locking cap
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000003825 pressing Methods 0.000 claims abstract description 58
- 210000000078 claw Anatomy 0.000 claims abstract description 43
- 239000011324 bead Substances 0.000 claims abstract description 14
- 239000000463 material Substances 0.000 claims description 4
- 230000006835 compression Effects 0.000 claims description 2
- 238000007906 compression Methods 0.000 claims description 2
- 239000000498 cooling water Substances 0.000 claims description 2
- 238000003384 imaging method Methods 0.000 description 10
- 230000005469 synchrotron radiation Effects 0.000 description 7
- 238000002474 experimental method Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 4
- 238000001179 sorption measurement Methods 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000011065 in-situ storage Methods 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000003467 diminishing effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25J—MANIPULATORS; CHAMBERS PROVIDED WITH MANIPULATION DEVICES
- B25J15/00—Gripping heads and other end effectors
- B25J15/06—Gripping heads and other end effectors with vacuum or magnetic holding means
- B25J15/0608—Gripping heads and other end effectors with vacuum or magnetic holding means with magnetic holding means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25J—MANIPULATORS; CHAMBERS PROVIDED WITH MANIPULATION DEVICES
- B25J18/00—Arms
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G47/00—Article or material-handling devices associated with conveyors; Methods employing such devices
- B65G47/74—Feeding, transfer, or discharging devices of particular kinds or types
- B65G47/90—Devices for picking-up and depositing articles or materials
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G47/00—Article or material-handling devices associated with conveyors; Methods employing such devices
- B65G47/74—Feeding, transfer, or discharging devices of particular kinds or types
- B65G47/90—Devices for picking-up and depositing articles or materials
- B65G47/91—Devices for picking-up and depositing articles or materials incorporating pneumatic, e.g. suction, grippers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G2201/00—Indexing codes relating to handling devices, e.g. conveyors, characterised by the type of product or load being conveyed or handled
- B65G2201/02—Articles
- B65G2201/0214—Articles of special size, shape or weigh
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Robotics (AREA)
- Clamps And Clips (AREA)
Abstract
The invention relates to a coaxial clamping device which is used for being installed on a rotary platform and comprises a base, a connecting column and a pressing piece which are sequentially arranged along the axial direction, wherein the diameter of the pressing piece is gradually reduced from bottom to top, the end part of the pressing piece is formed into a plurality of pressing claws which are uniformly distributed along the circumferential direction, the outer side of each pressing claw is provided with a ball groove which extends along the axial direction, a ball is arranged in each ball groove, the outer sides of the connecting column and the pressing piece are sleeved with a locking cap, the lower end of the locking cap is in threaded connection with the connecting column, and the upper end of the locking cap is abutted against the ball; and a plurality of magnetic beads uniformly arranged along the circumferential direction are arranged on the base. According to the coaxial clamping device, the sample is clamped through the circumferentially symmetrical clamping claws, so that the sample and the coaxial clamping device have the same axis, and the device and the rotary platform are coaxially fixed through the magnetic beads, so that the sample and the rotary platform are coaxially fixed.
Description
Technical Field
The invention relates to the field of coaxial fastening of small and micro-sized samples, in particular to a coaxial clamping device for fixing a sample in synchrotron radiation imaging.
Background
The synchrotron radiation imaging technology is a microscopic detection means with wide application, and the observation range of a sample can be from millimeter to micron. In the three-dimensional imaging process, the sample needs to rotate and continuously perform imaging recording, so that whether the sample and the sample table can be coaxially fixed becomes a key factor for restricting the imaging quality.
For the column-shaped and sheet-shaped samples, the samples are usually fixed on the plane of a high-precision rotary platform by gluing, and in order to ensure that the samples and the rotary platform rotate coaxially, the samples need to be glued in the center of the rotary platform.
However, the method relies on naked eyes to adhere the core, and the technical requirement on adhesion is high and the efficiency is low; in addition, for a small sample, although the position of the bonding is in the center, the sample may be inclined, and the coaxiality cannot be ensured, so that the sample is rotated out of the visual field and fails to image in the synchrotron radiation imaging.
Disclosure of Invention
The invention aims to provide a coaxial clamping device to quickly realize coaxial fixation of a sample in synchrotron radiation imaging.
The invention provides a coaxial clamping device which is used for being installed on a rotary platform and comprises a base, a connecting column and a pressing piece which are sequentially arranged along the axial direction, wherein the diameter of the pressing piece is gradually reduced from bottom to top, the end part of the pressing piece is formed into a plurality of pressing claws which are uniformly arranged along the circumferential direction, the outer side of each pressing claw is provided with a ball groove which extends along the axial direction, a ball is arranged in each ball groove, the outer sides of the connecting column and the pressing piece are sleeved with a locking cap, the lower end of the locking cap is in threaded connection with the connecting column, and the upper end of the locking cap is abutted against the ball; and a plurality of magnetic beads uniformly arranged along the circumferential direction are arranged on the base.
Furthermore, the diameter of the ball is smaller than or equal to 2mm, the included angle between the outer side wall of each pressing claw and the axis is smaller than or equal to 15 degrees, and the maximum gap between every two adjacent pressing claws is smaller than or equal to 1.5mm.
Further, the pressing claw is prismatic, and the overall shape of the top surface of the pressing claws is a hollow regular polygon.
Further, the overall shape of the plurality of pressing claws is a hollow hexagonal prism and the number of the pressing claws is six.
Further, the base, the connecting column and the pressing piece are integrally formed.
Further, the base, the spliced pole with compress tightly the piece and in proper order can dismantle the connection.
Further, the coaxial clamping device of claim 1, wherein the base, the connecting post and the compression member are sequentially threaded.
Further, the base, the connecting column, the pressing piece, the ball and the locking cap are all made of high-temperature-resistant materials.
Further, a cooling water tank is arranged in the locking cap.
Furthermore, the number of the magnetic beads is three, and the circle centers of the circumferences where the three magnetic beads are located are on the axis of the rotating platform.
According to the coaxial clamping device, the sample is clamped through the circumferentially symmetrical clamping claws, so that the sample is the same as the axial line of the coaxial clamping device, and the coaxial fixation of the device and the rotary platform is realized through the magnetic beads, so that the coaxial fixation of the sample and the rotary platform is realized; the clamping of a cylindrical sample with the diameter of 0.5-2mm and a flaky sample with the diameter of 0.3-0.5mm can be realized by controlling the size of the ball, the included angle between the pressing claw and the axis and the gap between the pressing claws; by introducing in batches and combining with the adsorption placement of the mechanical arms, the automatic taking and placing and imaging experiments of a plurality of groups of samples can be realized, and the efficiency is improved; the coaxial clamping device is simple in structure, portable and adjustable, and suitable for heating environments, so that synchrotron radiation observation of in-situ phase change experiments and the like is realized, and the coaxial clamping device has secondary expansibility.
Drawings
FIG. 1 is a schematic structural diagram of a coaxial clamping device according to an embodiment of the invention;
FIG. 2 is a schematic structural view of the coaxial clamping device according to the embodiment of the present invention after the locking cap is removed;
FIG. 3 is a cross-sectional view of a coaxial gripping device according to an embodiment of the present invention along a central axis;
FIG. 4 is a schematic diagram of a coaxial clamping device for clamping a sheet sample according to an embodiment of the invention;
fig. 5 is a schematic structural view of the coaxial clamping device according to another embodiment of the present invention after the locking cap is removed.
Detailed Description
The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
As shown in fig. 1 to 3, an embodiment of the present invention provides a coaxial clamping device, which is used for being mounted on a rotating platform of a synchronous radiation device, and includes a base 1, a connecting column 2 and a pressing member 3 that are sequentially arranged along an axial direction, a diameter of the pressing member 3 is gradually reduced from bottom to top, and an end portion of the pressing member is formed into a plurality of pressing claws 31 that are uniformly arranged along a circumferential direction (each pressing claw 31 is circumferentially symmetrical), a ball groove 311 that extends along the axial direction is provided on an outer side of each pressing claw 31, a ball 4 is provided in the ball groove 311, and the ball 4 can roll in the ball groove 311; the locking cap 5 is sleeved outside the connecting column 2 and the pressing piece 3, the lower end of the locking cap 5 is in threaded connection with the connecting column 2, the upper end of the locking cap 5 is abutted against the ball 4, when the locking cap 5 is screwed down, the locking cap moves downwards along the axial direction, the ball 4 also rolls downwards in the ball groove 311, and in the moving-down process, the locking cap 5 applies a radial force to each pressing claw 31 through the ball 4, so that the pressing claws 31 are close to each other; conversely, when the locking cap 5 is unscrewed, it will move axially upwards, gradually diminishing each pressing claw 31, and each pressing claw 31 will move away from each other; when the locking cap 5 is not moved, the ball 4 is also pressed into the ball groove 311 by the locking cap 5 to be kept still. The bottom of base 1 is equipped with a plurality of magnetic beads 7 that evenly arrange along circumference, makes base 1 adsorb on synchrotron device's rotary platform through magnetic bead 7, realizes fixedly, and when setting up for the centre of a circle of these magnetic beads 7 place circumferences coincides with synchrotron device's rotary platform's axis, thereby makes this coaxial clamping device fix behind rotary platform, and its axis also coincides with rotary platform's axis.
Referring to fig. 1 again, when in use, for the cylindrical sample 6, the locking cap 5 is unscrewed, then the cylindrical sample 6 is inserted into the gap surrounded by the pressing claws 31, the protruding length of the cylindrical sample 6 is adjusted as required, then the locking cap 5 is screwed gradually, each pressing claw 31 gradually approaches and presses the cylindrical sample 6, so as to lock the cylindrical sample 6, and after locking, the coaxial clamping device can be fixed on the rotating platform, and as the pressing claws 31 are circumferentially symmetrical, the axial line of the cylindrical sample 6 can be ensured to be coincident with the coaxial clamping device to the maximum extent, so as to be coincident with the axial line of the rotating platform.
In the embodiment, the diameter of the ball 4 is not more than 2mm, the included angle between the outer side wall of the pressing claw 31 and the axis is not more than 15 degrees, and the maximum gap between two adjacent pressing claws 31 is not more than 1.5mm, so that the clamping of a cylindrical sample with the diameter of 0.5-2mm can be suitable.
In a possible embodiment, 3 magnetic beads 7 are provided to attach the coaxial clamping device to the rotating platform.
In this embodiment, the base 1, the connecting column 2 and the pressing member 3 may be integrally formed.
The single pressing claw 31 may be provided in a prism shape, the entire shape of the top surface of the plurality of pressing claws 31 is a hollow regular polygon having a vacancy of a regular polygon at the center (i.e., the entire shape is a hollow regular polygon prism), the number of the pressing claws 31 is the same as the number of sides of the regular polygon, for example, the entire shape of the top surface of the plurality of pressing claws 31 is a hollow regular pentagon, and then the number of the pressing claws 31 is also provided to be 5. As shown in fig. 1 and 4, it is preferable that the plurality of holding-down claws 31 are arranged in the overall shape of a hollow regular hexagonal prism, and 6 holding-down claws 31 are arranged in total to clamp a cylindrical sample in such a manner that the six sides are tangent to the sample. Here, hexagonal refers to the inner wall of the hollow regular hexagonal prism.
For the non-standard cylindrical sample, the clamping can be realized by the way that the resin is packaged into a standard cylindrical shape or a cylindrical ring is fixed at the sample clamping section, and the like, and then the standard cylindrical or the cylindrical ring is clamped on the coaxial clamping device, so that the clamping of the non-standard cylindrical sample is realized.
As shown in fig. 4, for the sheet-like sample 8, a gasket 9 is added at the clamping end, and then the sheet-like sample is inserted into the gap between any two pressing claws 31, and the other end of the sheet-like sample is inserted into the gap between two symmetrical pressing claws 31, so that the central axis of the sheet-like sample 8 coincides with the axis of the coaxial clamping device, and then the locking cap 5 is screwed down, thereby realizing the centering clamping of the sheet-like sample 8. The thickness of the sheet-shaped sample 8 can reach 0.3-0.5mm, namely the coaxial clamping device can realize the clamping of the sub-millimeter sheet-shaped sample.
The coaxial clamping device can be produced in batch, then each device clamps a sample, and the coaxial clamping device can be automatically taken and placed from the rotating platform through the adsorption type manipulator, so that automatic clamping and replacement are realized, and the efficiency of an imaging experiment is greatly improved. The upper surface of base 1 requires to process smoothly, after the centre gripping in batches of being convenient for, carries out the absorption sample when sample quick replacement with the help of the arm.
In another embodiment of the present invention, as shown in fig. 5, the base 1, the connecting column 2 and the pressing member 3 are detachably connected, for example, by a screw connection, so that the maximum gap and the clamping length of the pressing claw 31 can be adjusted to accommodate clamping of samples with different sizes.
According to the coaxial clamping device provided by the embodiment of the invention, the sample is clamped by the circumferentially symmetrical clamping claws 31, so that the sample is the same as the axial line of the coaxial clamping device, and the device and the rotary platform are coaxially fixed by the magnetic beads 7, so that the sample and the rotary platform are coaxially fixed; by controlling the size of the ball 4, the included angle between the pressing claw 31 and the axis and the gap between the pressing claws 31, the clamping of a cylindrical sample with the diameter of 0.5-2mm and a sheet sample with the diameter of 0.3-0.5mm can be realized; by introducing in batches and combining with the adsorption placement of the mechanical arms, the automatic taking and placing and imaging experiments of a plurality of groups of samples can be realized, and the efficiency is improved; the coaxial clamping device is simple in structure, portable and adjustable, and suitable for heating environments, so that synchrotron radiation observation of in-situ phase change experiments and the like is realized, and the coaxial clamping device has secondary expansibility.
The above embodiments are merely preferred embodiments of the present invention, which are not intended to limit the scope of the present invention, and various changes may be made in the above embodiments of the present invention. All simple and equivalent changes and modifications made according to the claims and the content of the specification of the present application fall within the scope of the claims of the present patent application. The invention has not been described in detail in order to avoid obscuring the invention.
Claims (10)
1. A coaxial clamping device is used for being installed on a rotary platform and is characterized by comprising a base, a connecting column and a pressing piece which are sequentially arranged along the axial direction, wherein the diameter of the pressing piece is gradually reduced from bottom to top, the end part of the pressing piece is formed into a plurality of pressing claws which are uniformly arranged along the circumferential direction, the outer side of each pressing claw is provided with a ball groove which extends along the axial direction, a ball is arranged in each ball groove, the outer sides of the connecting column and the pressing piece are sleeved with a locking cap, the lower end of the locking cap is in threaded connection with the connecting column, and the upper end of the locking cap is abutted against the ball; and a plurality of magnetic beads uniformly arranged along the circumferential direction are arranged on the base.
2. The coaxial clamping device of claim 1, wherein the diameter of the ball is less than or equal to 2mm, the angle between the outer side wall of the pressing claw and the axis is less than or equal to 15 °, and the maximum gap between two adjacent pressing claws is less than or equal to 1.5mm.
3. The coaxial clamping device of claim 1, wherein the clamping jaws are prismatic and the overall shape of the top surface of the plurality of clamping jaws is a hollow regular polygon.
4. The coaxial clamping device of claim 3, wherein the plurality of clamping fingers are hollow hexagonal prisms in overall shape and the number of clamping fingers is six.
5. The coaxial clamping device of claim 1, wherein the base, the connecting post, and the hold down member are integrally formed.
6. The coaxial clamping device of claim 1, wherein the base, the connecting post and the hold down member are removably connected in sequence.
7. The coaxial clamp of claim 6, wherein the base, the connection post, and the hold down member are threaded in sequence.
8. The coaxial clamping device of claim 1, wherein the base, the connecting post, the compression member, the ball, and the locking cap are all made of high temperature resistant materials.
9. The coaxial gripping device of claim 8, wherein the locking cap has a cooling water trough disposed therein.
10. The coaxial clamping device of claim 1, wherein the number of the magnetic beads is three, and the center of the circle on which the three magnetic beads are located is on the axis of the rotating platform.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210827849.0A CN115213932A (en) | 2022-07-14 | 2022-07-14 | Coaxial clamping device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210827849.0A CN115213932A (en) | 2022-07-14 | 2022-07-14 | Coaxial clamping device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115213932A true CN115213932A (en) | 2022-10-21 |
Family
ID=83612008
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210827849.0A Pending CN115213932A (en) | 2022-07-14 | 2022-07-14 | Coaxial clamping device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115213932A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4875275A (en) * | 1987-12-07 | 1989-10-24 | Megamation Incoporated | Novel automatic tool changer |
| CN200957458Y (en) * | 2006-09-19 | 2007-10-10 | 陆坚 | Beveller |
| US8844941B1 (en) * | 2010-06-29 | 2014-09-30 | Ronald W. Dickrede | Adaptor for holding a threading device |
| US20170291225A1 (en) * | 2014-09-29 | 2017-10-12 | Masayuki Yamamoto | Chuck structure |
| CN208790630U (en) * | 2018-07-18 | 2019-04-26 | 蓝思科技股份有限公司 | Take discharging device and fixture system |
-
2022
- 2022-07-14 CN CN202210827849.0A patent/CN115213932A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4875275A (en) * | 1987-12-07 | 1989-10-24 | Megamation Incoporated | Novel automatic tool changer |
| CN200957458Y (en) * | 2006-09-19 | 2007-10-10 | 陆坚 | Beveller |
| US8844941B1 (en) * | 2010-06-29 | 2014-09-30 | Ronald W. Dickrede | Adaptor for holding a threading device |
| US20170291225A1 (en) * | 2014-09-29 | 2017-10-12 | Masayuki Yamamoto | Chuck structure |
| CN208790630U (en) * | 2018-07-18 | 2019-04-26 | 蓝思科技股份有限公司 | Take discharging device and fixture system |
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