CN111618630A - Clamping device and clamping method thereof - Google Patents
Clamping device and clamping method thereof Download PDFInfo
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- CN111618630A CN111618630A CN202010421181.0A CN202010421181A CN111618630A CN 111618630 A CN111618630 A CN 111618630A CN 202010421181 A CN202010421181 A CN 202010421181A CN 111618630 A CN111618630 A CN 111618630A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
- B23Q3/02—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine for mounting on a work-table, tool-slide, or analogous part
- B23Q3/06—Work-clamping means
- B23Q3/08—Work-clamping means other than mechanically-actuated
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
- B23Q3/02—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine for mounting on a work-table, tool-slide, or analogous part
- B23Q3/06—Work-clamping means
- B23Q3/08—Work-clamping means other than mechanically-actuated
- B23Q3/088—Work-clamping means other than mechanically-actuated using vacuum means
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Abstract
The invention relates to the field of machining and discloses a clamping device which comprises an upper sucker, a lower sucker and a sucker valve body; the upper sucker is right opposite to the lower sucker, and the sucker valve body is arranged on the end surface of one side of the lower sucker; the upper sucker is provided with a positioning structure for positioning a workpiece, and the positioning structure can be deformed. The invention also discloses a clamping method, and the clamping method effectively solves the problem that the existing thin-wall part is easy to deform when being clamped.
Description
Technical Field
The invention relates to the technical field of machining, in particular to a clamping device and a clamping method thereof.
Background
With the development of science and technology, the requirement on the manufacturing precision of product parts is higher and higher, and ultra-precision machining equipment, especially ultra-precision machining tools, is urgently needed, and the design and the manufacture of core components of the ultra-precision machining tools can influence the machining precision and the surface quality of the parts. In the design of the ultra-precision machining tool, a clamping device of a workpiece is a very critical part, and the structural design and the manufacturing precision of the clamping device directly influence the dimensional precision and the form and position precision of a machined part. Therefore, how to design and manufacture a workpiece clamping device with an ingenious structure is one of the core technologies of the ultraprecise processing machine tool.
For an ultraprecise processing machine tool, the design of a workpiece clamping device mainly considers two problems: the clamping device has the advantages that the clamping device has the manufacturing accuracy and the positioning accuracy, the size change range when the clamping device clamps a workpiece, the deformation condition of thin-wall part clamping and the convenience of operation, and the two problems are key technologies for designing and manufacturing the clamping device.
The existing clamping device directly uses a pliers type clamp to carry out clamping operation, so that the stress of the clamping device is different between the position in contact with the clamp and the position not in contact with the clamp, the workpiece is very easy to extrude and deform due to uneven stress, and particularly for thin-walled workpieces with weak stress capacity.
The existing clamping device for clamping the thin-wall plane workpiece has the following problems when clamping the thin-wall plane workpiece: 1. the thin-wall workpiece is clamped and deformed to different degrees; 2. the clamping requirements of parts with different calibers cannot be met.
Disclosure of Invention
The invention provides a clamping device which is used for solving the problem that when an existing clamping device clamps a thin-wall plane workpiece, the workpiece is clamped and deformed.
The technical scheme adopted by the invention for solving the technical problems is as follows: a clamping device comprises an upper sucker, a lower sucker and a sucker valve body; the upper sucker is right opposite to the lower sucker, and the sucker valve body is arranged on the end surface of one side of the lower sucker; the upper sucker is provided with a positioning structure for positioning a workpiece, and the positioning structure can be deformed.
The invention has the advantages that:
according to the invention, the thin-wall part to be processed is fixed in an adsorption mode through the upper sucker, the lower sucker and the sucker valve body, the force is uniformly applied, and the deformation problem caused by directly clamping with tools such as a clamp and the like is avoided. And the deformable positioning structure can adapt to thin-wall parts to be processed with various different structures, thereby increasing the application range of the invention.
The invention adopts the vacuum adsorption principle, the part is directly placed on the workbench with high flatness, the micro-hole array on the plane of the workbench generates negative pressure through the air pump, the workpiece is clamped by the negative pressure adsorption, the clamping force can be adjusted by the pressure of the air source of the air pump, the clamping deformation of the workpiece is small, the surface precision of the upper sucker is high, and the influence of the adsorption surface of the vacuum sucker on the flatness of the part after processing can be greatly reduced or eliminated; the workpiece clamping device is particularly used for ultra-precision machining of optical plane parts, has a simple structure, is convenient to operate, works reliably, and can flexibly design the size of the vacuum chuck according to the requirement; thin-wall plane parts with different sizes can be clamped in an adsorbing mode, and only the switch valve on the sucker valve body needs to be adjusted. The invention can be used in an ultra-precision machine tool with high processing precision to clamp thin-wall plane parts; the clamp can also be used for clamping when a thin-wall part is precisely machined.
Furthermore, location structure includes the positioning claw of symmetry setting on last sucking disc, the positioning claw is scalable.
The telescopic positioning claws can clamp not only a planar piece, but also a special-shaped piece with a non-planar structure.
Further, each positioning pawl has at least one movable joint.
The movable joint is a kinematic pair which has the same action as the human joint and can move the positioning claw.
Furthermore, an anti-skid layer is arranged on the inner side surface of each positioning claw.
Through the skid resistant layer, can make the locating pawl avoid skidding when the centre gripping is waited to process the work piece.
Furthermore, an upper adsorption channel is arranged on the bottom surface of the upper sucker, and an upper adsorption hole communicated with the first air pump is arranged in the upper adsorption channel.
The first air pump can generate negative pressure adsorption force through the upper adsorption channel and the upper adsorption hole.
Further, a lower adsorption channel is arranged on the top surface of the lower sucker, and a lower adsorption hole communicated with the second air pump is arranged in the lower adsorption channel.
The second air pump can generate negative pressure adsorption force through the lower adsorption channel and the lower adsorption hole.
Further, the sucker valve body comprises an upper sucker valve body and a lower sucker valve body; the lower sucker valve body is arranged between the second air pump and the lower adsorption hole, and the upper sucker valve body is arranged between the first air pump and the upper adsorption hole.
The upper sucker valve body and the lower sucker valve body are respectively used for opening or closing the communication relation between the upper sucker and the first air pump and between the lower sucker and the second air pump, and are used for controlling the upper sucker and the lower sucker to generate a negative pressure adsorption effect or an outward air injection cleaning effect.
Further, the lower adsorption hole is a stepped hole.
The lower adsorption hole is used as a main force application point of the lower adsorption disc for generating adsorption force, and the force of the generated force application point can be more uniform by adopting the stepped hole.
Further, the lower sucker and the upper sucker can suck air inwards or spray air outwards.
When a workpiece to be processed needs to be clamped, air is sucked inwards, the workpiece to be processed is clamped through negative pressure adsorption, and before processing or after processing is finished, the workpiece to be processed or a processed workpiece can be flushed and cleaned through outward air injection.
The invention also provides a clamping method, which comprises the following steps:
placing a workpiece to be processed between a lower sucker and an upper sucker;
opening a valve body of a lower sucker, sucking air inwards by the lower sucker, and adsorbing the workpiece to be processed;
step three, opening the valve body of the upper sucker, and spraying air to the outside by the upper sucker;
closing the upper sucker valve body and the lower sucker valve body, wrapping the positioning structure on the upper sucker with a workpiece to be processed, and aligning the upper sucker and the lower sucker;
and step five, opening the upper sucker valve body and the lower sucker valve body, and sucking the upper sucker and the lower sucker together inwards to suck the workpiece to be processed.
According to the method, the negative pressure adsorption force generated by the upper sucker and the lower sucker on the workpiece to be processed can be utilized to clamp the workpiece to be processed, so that the problem of deformation caused by uneven force application due to direct action on the workpiece to be processed by tools such as a clamp is avoided.
Meanwhile, due to the positioning structure, no matter what shape the workpiece to be machined is, the positioning can be rapidly completed between the upper sucker and the lower sucker through the positioning piece. The upper sucker and the lower sucker can suck air inwards to generate an adsorption effect and can also spray air outwards, so that the processing workpiece and the processed workpiece can be washed and cleaned.
Drawings
Fig. 1 is a schematic diagram of a first embodiment of the invention.
Detailed Description
The following is further detailed by way of specific embodiments:
reference numerals in the drawings of the specification include: the device comprises an upper sucker 1, a lower sucker 2, a lower adsorption channel 3 and a positioning claw 4.
Example one
The embodiment is basically as shown in the attached figure 1: a clamping device comprises an upper sucker 1, a lower sucker 2 and a sucker valve body; the upper sucker 1 is right opposite to the lower sucker 2, and the sucker valve body is arranged on the end surface of one side of the lower sucker 2; the upper sucker 1 is provided with a positioning structure for positioning a workpiece, and the positioning structure can be deformed.
The positioning structure comprises positioning claws 4 symmetrically arranged on the upper sucker 1, and the positioning claws 4 can stretch out and draw back. The telescopic positioning claws 4 can clamp not only a plane piece, but also a special-shaped piece with a non-plane structure.
Each positioning pawl 4 has at least one movable joint. In this embodiment, the number of the movable joints of the positioning claws 4 is two, and the positioning claws 4 are respectively arranged on the front side and the rear side of the upper suction cup 1 and the lower suction cup 2, so that the processing of the workpiece to be processed clamped between the upper suction cup 1 and the lower suction cup 2 is not affected. The movable joint is a kinematic pair which has the same action as the human joint and can enable the positioning claw 4 to move.
An anti-slip layer is stuck on the inner side surface of each positioning claw 4. Through the skid resistant layer, can make the positioning claw 4 avoid skidding when the centre gripping is waited to process the work piece. The inner side surface of the anti-skid layer is provided with uneven anti-skid lines.
In this embodiment, the non-slip layer adopts the rubber layer, also can adopt the plastic layer.
An upper adsorption channel is arranged on the bottom surface of the upper sucker 1, and an upper adsorption hole communicated with the first air pump is arranged in the upper adsorption channel. The first air pump can generate negative pressure adsorption force through the upper adsorption channel and the upper adsorption hole.
A lower adsorption channel 3 is arranged on the top surface of the lower sucker 2, and a lower adsorption hole communicated with a second air pump is arranged in the lower adsorption channel 3. So that the second air pump can pass through the lower adsorption channel 3 and the lower adsorption hole to generate negative pressure adsorption force.
The sucker valve body comprises an upper sucker 1 valve body and a lower sucker 2 valve body; the valve body of the lower sucker 2 is arranged between the second air pump and the lower adsorption hole, and the valve body of the upper sucker 1 is arranged between the first air pump and the upper adsorption hole. The valve body of the upper sucker 1 and the valve body of the lower sucker 2 are respectively used for opening or closing the communication relation between the upper sucker 1 and the first air pump and between the lower sucker 2 and the second air pump, and are used for controlling the upper sucker 1 and the lower sucker 2 to generate negative pressure adsorption or outward air injection cleaning.
The lower adsorption hole is a stepped hole. The lower suction hole is used as a main force application point of the lower suction disc 2 for generating suction force, and the force of the generated force application point can be more uniform by adopting the stepped hole.
The lower suction cup 2 and the upper suction cup 1 can suck air inwards or spray air outwards. When a workpiece to be processed needs to be clamped, air is sucked inwards, the workpiece to be processed is clamped through negative pressure adsorption, and before processing or after processing is finished, the workpiece to be processed or a processed workpiece can be flushed and cleaned through outward air injection.
The first air pump and the second air pump in this embodiment may both adopt vacuum pumps. The first air pump and the second air pump are respectively communicated with the upper sucker 1 and the lower sucker 2 through pipelines, wherein the valve body of the upper sucker 1 is arranged on the pipeline communicated with the first air pump, and the valve body of the lower sucker 2 is arranged on the pipeline communicated with the second air pump.
According to the invention, the thin-wall part to be processed is fixed in an adsorption mode through the upper sucker 1, the lower sucker 2 and the sucker valve body, the force is uniformly applied, and the deformation problem caused by directly clamping with tools such as a clamp is avoided. And the deformable positioning structure can adapt to thin-wall parts to be processed with various different structures, thereby increasing the application range of the invention.
The invention adopts the vacuum adsorption principle, the part is directly placed on the workbench with high flatness, the micro-hole array on the plane of the workbench generates negative pressure through the air pump, the workpiece is clamped by the negative pressure adsorption, the clamping force can be adjusted by the pressure of the air source of the air pump, the clamping deformation of the workpiece is small, the surface precision of the upper sucker 1 is high, and the influence of the adsorption surface of the vacuum sucker on the flatness of the part after processing can be greatly reduced or eliminated; the workpiece clamping device is particularly used for ultra-precision machining of optical plane parts, has a simple structure, is convenient to operate, works reliably, and can flexibly design the size of the vacuum chuck according to the requirement; thin-wall plane parts with different sizes can be clamped in an adsorbing mode, and only the switch valve on the sucker valve body needs to be adjusted. The invention can be used in an ultra-precision machine tool with high processing precision to clamp thin-wall plane parts; the clamp can also be used for clamping when a thin-wall part is precisely machined.
The specific implementation process is as follows:
when the clamping device is used for clamping a thin-wall part, the clamping device comprises the following steps:
firstly, a workpiece to be processed is placed between a lower sucker 2 and an upper sucker 1;
opening a valve body of the lower sucker 2, sucking air inwards by the lower sucker 2, and sucking the workpiece to be processed;
step three, opening the valve body of the upper sucker 1, and spraying air to the outside by the upper sucker 1;
closing the valve bodies of the upper sucker 1 and the lower sucker 2, wrapping the positioning structure on the upper sucker 1 on the workpiece to be processed, and aligning the upper sucker 1 and the lower sucker 2;
and step five, opening the valve body of the upper sucker 1 and the valve body of the lower sucker 2, and sucking the upper sucker 1 and the lower sucker 2 inwards together to adsorb the workpiece to be processed.
By the method, the negative pressure adsorption force generated by the upper sucker 1 and the lower sucker 2 on the workpiece to be processed can be utilized to clamp the workpiece to be processed, so that the problem of deformation caused by uneven force application due to direct action on the workpiece to be processed by tools such as a clamp is avoided.
Meanwhile, due to the positioning structure, no matter what shape the workpiece to be machined is, the positioning can be rapidly completed between the upper sucker 1 and the lower sucker 2 through the positioning piece. And go up sucking disc 1 and lower sucking disc 2 not only can inwards breathe in and produce the adsorption, can also outwards jet-propelled, be favorable to treating the processing work piece and processing the finished piece and blow wash cleanly.
In the design of the invention, a vacuum adsorption mode is adopted, the clamping force is from the pressure generated by the vacuum pressure between a workpiece to be processed and the upper and lower suckers 2 of the same vacuum sucker, the thin-wall part is placed on the surface of the vacuum sucker, when the ultraprecise cutting processing is carried out by a fly cutter mode, the action of the tangential force of a diamond cutter is received, the tangential force needs to be balanced by the friction force between the vacuum sucker and the thin-wall part, and the calculation method of the friction force can be represented by a formula (1):
F＝pxW (1)
in the formula: f is the friction force between the thin-wall part and the vacuum chuck, p is the friction coefficient, and W is the surface positive pressure.
Therefore, to calculate the clamping force of the vacuum suction of the clamping device, the friction coefficient of the thin-wall part and the surface of the vacuum suction cup and the positive pressure on the surface of the thin-wall part must be known. The positive pressure on the surface of the thin-wall part is the product of the pressure generated by the vacuum degree and the pressed area.
Because the cutting amount in the ultraprecise cutting process is very small, the cutting force is generally in
And some are even smaller. Therefore, for the thin-wall workpiece, as long as the friction force F generated during vacuum adsorption is far larger than the cutting force range, if the friction force F generated during vacuum adsorption is too large, clamping deformation of the thin-wall workpiece can be caused, and the point is a link of important consideration when the adsorption pressure range of the air pump is designed and selected. Generally, the adsorption pressure of the air pump is at
The requirements can be completely met.
The thin-wall workpiece is clamped on the upper surface of the vacuum chuck by taking the surface of the vacuum chuck as a reference. Therefore, the surface precision of the thin-wall part blank and the vacuum chuck has great influence on the final machining result of the thin-wall part. Errors of a machine tool guide rail, a main shaft and a vacuum chuck are not counted, only the influence of the shape of a workpiece blank on the processed flatness is considered, and after the vacuum chuck removes the adsorption, the flatness error of the part which is warped upwards is generated. There are two methods for eliminating the influence of blank on the flatness after processing: (I) under the condition of ensuring that the friction force between the thin-wall part and the vacuum chuck is far greater than the cutting force, the friction force F is reduced; (II) after one end face of the thin-wall workpiece is machined, the other end face is machined and repeated for many times, so that the clamping deformation of the thin-wall workpiece is reduced, and the plane precision of the machined thin-wall workpiece is improved.
Errors of a machine tool guide rail, a main shaft and a workpiece blank are not counted, and only the influence of the surface shape error of the vacuum chuck on the flatness of the processed thin-wall workpiece is considered. The surface shape precision of the vacuum chuck has great influence on the final machining precision of the thin-wall workpiece attached to the vacuum chuck. If the surface shape precision of the vacuum chuck is better, the surface shape error of the thin-wall part can be reduced or even eliminated. Therefore, extremely high surface shape accuracy is required for the vacuum chuck surface, and the final solution is: firstly, the adsorption surface of the vacuum chuck is ultra-precisely processed, the surface precision of the upper and lower chucks 2 in the invention reaches 0.15 IU/410 x410mm, and the requirement on the flatness of large-caliber thin-wall parts during vacuum adsorption clamping can be completely met.
Example two
The difference between the embodiment and the first embodiment is that the anti-slip layer is a hollow layer filled with mucus, uneven anti-slip lines are arranged on the inner side surface of the anti-slip layer, and small holes which expand to enable the mucus to flow out slowly are formed in the concave parts of the anti-slip layer. When the positioning claw 4 is used for clamping a workpiece, the anti-skid layer of the positioning claw 4 is in contact with the workpiece, the area part in contact with the workpiece is the convex part with anti-skid grains, the convex part is in contact with the workpiece and is extruded, so that the concave part which is not in contact with the workpiece is expanded, mucus flows out from the small hole and is adhered to the workpiece to be processed, and the firmness of clamping between the positioning claw 4 and the workpiece to be processed is effectively increased. And because the antiskid lines are uneven, the number of the small holes in the concave part is limited, so that the mucilage is limited to be adhered to the workpiece, although the connection strength between the positioning claw 4 and the workpiece is increased, the mucilage is prevented from slipping off, and the normal taking and placing of the workpiece cannot be influenced when the positioning claw 4 is released. In addition, the mucilage is added with an antirust component, so that the mucilage not only has the effect of enhancing the connection stability, but also can play a certain antirust spraying role.
EXAMPLE III
The difference from the first embodiment is that the positioning claw 4 in the present embodiment is similar to the structure of the existing manipulator, but one movable joint rod of the positioning claw 4 near the end is a hollow structure, and besides the anti-slip layer is adhered on the end of the positioning claw 4, a spray gun capable of spraying articles outwards is also installed on the end of the positioning claw 4. The caliber of the spray gun is slightly larger than that of a common spray gun, and the caliber diameter of the spray gun is about
Between centimeters. The movable joint rod closest to the spray gun, namely the movable joint rod closest to the end part of the positioning claw 4 is communicated with the spray gun and is used as a gun chamber of the spray gun. A rubber net with viscosity is arranged in the movable joint support rod. When the positioning claw 4 is close to the workpiece to be processed, the rubber net can be scattered on the surface of the workpiece to be processed through the spray gun, and the rubber net has viscosity and can be stuck to the workpiece to be processed, so that the workpiece to be processed can be clamped and moved through the positioning claw 4 and the rubber net. And because the rubber net is of a net-shaped structure and the middle hollow part does not have viscosity, the areas of the rubber net covering the workpieces to be processed are different, and the adhesive force of the rubber net to the workpieces to be processed is different. In this embodiment, the rubber net sprayed by the spray gun only adheres to the side surface and the surrounding position of the workpiece to be processed, and can clamp the workpiece to be processed together with the positioning claw 4, but the taking and placing of the workpiece to be processed are not affected after the positioning claw 4 is released, and the processing operation of the workpiece to be processed is not affected.
The foregoing is merely an example of the present invention, and common general knowledge in the field of known specific structures and characteristics is not described herein in any greater extent than that known in the art at the filing date or prior to the priority date of the application, so that those skilled in the art can now appreciate that all of the above-described techniques in this field and have the ability to apply routine experimentation before this date can be combined with one or more of the present teachings to complete and implement the present invention, and that certain typical known structures or known methods do not pose any impediments to the implementation of the present invention by those skilled in the art. It should be noted that, for those skilled in the art, without departing from the structure of the present invention, several changes and modifications can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent. The scope of the claims of the present application shall be determined by the contents of the claims, and the description of the embodiments and the like in the specification shall be used to explain the contents of the claims.
Claims (10)
1. A clamping device is characterized by comprising an upper sucker, a lower sucker and a sucker valve body; the upper sucker is right opposite to the lower sucker, and the sucker valve body is arranged on the end surface of one side of the lower sucker; the upper sucker is provided with a positioning structure for positioning a workpiece, and the positioning structure can be deformed.
2. The clamping device of claim 1, wherein the positioning structure comprises positioning claws symmetrically arranged on the upper suction cup, and the positioning claws are retractable.
3. A holding arrangement as claimed in claim 2, wherein each detent has at least one moveable joint.
4. The clamping device of claim 2 wherein each detent has an anti-slip layer on an inner surface thereof.
5. The clamping device as claimed in claim 1, wherein the bottom surface of the upper suction cup is provided with an upper suction channel, and the upper suction channel is provided with an upper suction hole communicated with the first air pump.
6. The clamping device as claimed in claim 1, wherein the lower suction cup is provided with a lower suction channel on a top surface thereof, and a lower suction hole communicating with the second air pump is provided in the lower suction channel.
7. The clamp device of claim 6, wherein the chuck valve body comprises an upper chuck valve body and a lower chuck valve body; the lower sucker valve body is arranged between the second air pump and the lower adsorption hole, and the upper sucker valve body is arranged between the first air pump and the upper adsorption hole.
8. The clamping device of claim 6, wherein the lower suction hole is a stepped hole.
9. The clamping device of claim 1, wherein the lower suction cup and the upper suction cup are both capable of sucking air inward or blowing air outward.
10. A method of clamping, comprising the steps of:
placing a workpiece to be processed between a lower sucker and an upper sucker;
opening a valve body of a lower sucker, sucking air inwards by the lower sucker, and adsorbing the workpiece to be processed;
step three, opening the valve body of the upper sucker, and spraying air to the outside by the upper sucker;
closing the upper sucker valve body and the lower sucker valve body, wrapping the positioning structure on the upper sucker with a workpiece to be processed, and aligning the upper sucker and the lower sucker;
and step five, opening the upper sucker valve body and the lower sucker valve body, and sucking the upper sucker and the lower sucker together inwards to suck the workpiece to be processed.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010421181.0A CN111618630A (en) | 2020-05-18 | 2020-05-18 | Clamping device and clamping method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010421181.0A CN111618630A (en) | 2020-05-18 | 2020-05-18 | Clamping device and clamping method thereof |
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| CN111618630A true CN111618630A (en) | 2020-09-04 |
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| CN201121069Y (en) * | 2007-09-07 | 2008-09-24 | 深圳市雅康精密机械有限公司 | Two-sided automatic rubber belt plastering apparatus |
| CN101642880A (en) * | 2009-08-24 | 2010-02-10 | 哈尔滨工业大学 | Vacuum adsorption clamping device used for clamping thin-walled planar workpiece |
| DE102009045536A1 (en) * | 2009-10-09 | 2011-04-14 | Wissner, Rolf, Dipl.-Ing. | Method for machining reducible operation of work-pieces, involves arranging sheet of web material between flat lower side of work piece and vacuum clamping plate with air throttle function |
| CN104551776A (en) * | 2014-12-02 | 2015-04-29 | 爱彼思（苏州）自动化科技有限公司 | Workpiece clamping and locating device |
| CN204997571U (en) * | 2015-09-09 | 2016-01-27 | 南阳富新特光电科技有限公司 | Camera apron pad pasting device |
| CN106862955A (en) * | 2015-12-11 | 2017-06-20 | 焱智精密机械（上海）有限公司 | For the fixture of thin plate processing |
| US20180215000A1 (en) * | 2017-02-01 | 2018-08-02 | John Blick | Prespecified height suction support with protective elastomeric overfit vacuum seal members and support members |
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2020
- 2020-05-18 CN CN202010421181.0A patent/CN111618630A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201121069Y (en) * | 2007-09-07 | 2008-09-24 | 深圳市雅康精密机械有限公司 | Two-sided automatic rubber belt plastering apparatus |
| CN101642880A (en) * | 2009-08-24 | 2010-02-10 | 哈尔滨工业大学 | Vacuum adsorption clamping device used for clamping thin-walled planar workpiece |
| DE102009045536A1 (en) * | 2009-10-09 | 2011-04-14 | Wissner, Rolf, Dipl.-Ing. | Method for machining reducible operation of work-pieces, involves arranging sheet of web material between flat lower side of work piece and vacuum clamping plate with air throttle function |
| CN104551776A (en) * | 2014-12-02 | 2015-04-29 | 爱彼思（苏州）自动化科技有限公司 | Workpiece clamping and locating device |
| CN204997571U (en) * | 2015-09-09 | 2016-01-27 | 南阳富新特光电科技有限公司 | Camera apron pad pasting device |
| CN106862955A (en) * | 2015-12-11 | 2017-06-20 | 焱智精密机械（上海）有限公司 | For the fixture of thin plate processing |
| US20180215000A1 (en) * | 2017-02-01 | 2018-08-02 | John Blick | Prespecified height suction support with protective elastomeric overfit vacuum seal members and support members |
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Application publication date: 20200904 |