CN108705113A - Multiple spot equalization clamping device - Google Patents
Multiple spot equalization clamping device Download PDFInfo
- Publication number
- CN108705113A CN108705113A CN201810653004.8A CN201810653004A CN108705113A CN 108705113 A CN108705113 A CN 108705113A CN 201810653004 A CN201810653004 A CN 201810653004A CN 108705113 A CN108705113 A CN 108705113A
- Authority
- CN
- China
- Prior art keywords
- clamping
- pawl
- pressure chamber
- terminal end
- bare terminal
- 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
- 239000010720 hydraulic oil Substances 0.000 claims abstract description 17
- 239000003921 oil Substances 0.000 claims abstract description 15
- 238000007789 sealing Methods 0.000 claims description 11
- 230000000694 effects Effects 0.000 abstract description 12
- 230000003313 weakening effect Effects 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 230000007246 mechanism Effects 0.000 description 4
- 210000000078 claw Anatomy 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B31/00—Chucks; Expansion mandrels; Adaptations thereof for remote control
- B23B31/02—Chucks
- B23B31/10—Chucks characterised by the retaining or gripping devices or their immediate operating means
- B23B31/103—Retention by pivotal elements, e.g. catches, pawls
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B31/00—Chucks; Expansion mandrels; Adaptations thereof for remote control
- B23B31/02—Chucks
- B23B31/10—Chucks characterised by the retaining or gripping devices or their immediate operating means
- B23B31/12—Chucks with simultaneously-acting jaws, whether or not also individually adjustable
- B23B31/16—Chucks with simultaneously-acting jaws, whether or not also individually adjustable moving radially
- B23B31/16287—Chucks with simultaneously-acting jaws, whether or not also individually adjustable moving radially using fluid-pressure means to actuate the gripping means
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Gripping On Spindles (AREA)
Abstract
The invention discloses the multiple spot equalization clamping devices of mechanical frock field application.Its structure includes that several pawls refer to and refer to driving device with pawl, the pawl refers to including clamping part, the clamping part is uniformly arranged several hydraulic cylinders towards clamping object, the hydraulic cylinder includes oil cylinder piston and pressure chamber, the same pawl refer on pressure chamber be connected, the oil cylinder piston includes the bare terminal end for extending clamping part.The application carries out clipping operation using the bare terminal end of hydraulic cylinder, and since cylinder pressure chamber is connected, then according to the difference of pressure, the position of hydraulic oil can also shift, so as to avoid the appearance of bare terminal end and the excessively high situation of workpiece active force.The circulation effect of hydraulic oil ensure that the uniform force on clamping object surface, effectively reduce workpiece damage rate, while providing guarantee for the effect of taking that object is clamped.Uniform stressed can eliminate the weakening of clamping force caused by stress deformation when clamping jaw clamps simultaneously, this is set as pawl and refers to provide guarantee to the clamping force that object is clamped.
Description
Technical field
The present invention relates to a kind of multiple spot equalization clamping devices of mechanical frock field application.
Background technology
In industrial processes, to improve industrial automation, the scope of application of clamping device is gradually expanded.Usually clamping
Device is referred to by several pawls carries out clipping operation to clamping object.Pawl refer to realized under the action of pawl refers to driving device it is opposite reciprocal
It is mobile, and then realize that pawl refers to the stable clamping to object and realizes movement.It is two, three etc. that the pawl of common clamping jaw, which refers to, should
The Clamping Center of clamping jaw is certain, to ensure that the stability of clipping operation.The clamping jaw is usually with the contact surface of object
Planar structure, to make to be steadily contacted with object.But when object to be held is concave plane, then the clamping of plane leads to object
Body surface face unbalance stress, opposite contact area can also reduce, and the clamping degree of corresponding object can also reduce, and be unfavorable for object
Stablize gripping movement.Simultaneously when gripping contact point is less, intensively stress can cause object to generate deformation, be unfavorable for product matter
The maintenance of amount causes the waste of product.When product is thin-wall product, the regular clamping jaw or circular clamping jaw and product connect
Contacting surface product is then more concentrated, so as to cause unbalance stress, it is easier to which the promotion for causing thin-wall product fraction defective is increased and is produced into
This.
Invention content
The multiple spot occurred the technical problem to be solved by the present invention is to provide clamping object deformation in a kind of reduction clamping process is impartial
Clamping device.
The technical solution adopted by the present invention to solve the technical problems is：
Multiple spot equalization clamping device, including several pawls refer to and refer to driving device with pawl, and the pawl refers to driving device for driving
Pawl refers to relative movement to realize object gripping operation, the pawl refer to including with clamping part, the clamping part is uniform towards clamping object
Several hydraulic cylinders are set, and the hydraulic cylinder includes oil cylinder piston and pressure chamber, and hydraulic oil is provided in the pressure chamber, described same
One pawl refer on pressure chamber be connected, the oil cylinder piston includes extending the bare terminal end of clamping part and pushing away in pressure chamber
Moved end, the bare terminal end are in contact with clamping object.
The application is contacted using the bare terminal end of hydraulic cylinder with the outer surface of clamping object, when each bare terminal end unbalance stress
When, the movement of corresponding oil cylinder piston can also change.Oil cylinder piston pushes the hydraulic oil in pressure chamber to be moved, due to
The pressure chamber that the pawl refers to is connected, then according to the difference of pressure, the position of hydraulic oil is also shifted, so as to avoid bare terminal end
With the appearance of the excessively high situation of workpiece active force.The circulation effect of hydraulic oil ensure that single pawl refers to the uniform force to workpiece surface
Property, workpiece damage rate is effectively reduced, while ensure that the clamping effect of workpiece.
Refer to for driving claw and move horizontally further, the pawl refers to driving device.
Further, the clamping part is arcuate structure.
Further, the bare terminal end is provided with non-slip mat.
Further, the promote-side is arranged with sealing ring.
The beneficial effects of the invention are as follows：
1, the clamping setting of the bare terminal end of hydraulic cylinder, makes its hydraulic oil that can realize mutual circulation by the pressure chamber of perforation,
The appearance for avoiding workpiece surface unbalance stress situation in clamping process ensure that single pawl refers to the uniform force to workpiece surface
Property, to ensure that each pawl refers to the harmony to the active force of workpiece, workpiece damage rate is effectively reduced, while ensure that work
The clamping effect of part.
2, the pawl refers to the uniformity to the active force of workpiece, can eliminate the stress deformation of clamping object when clamping jaw clamps and cause
Clamping force weakening, for pawl refer to be clamped object clamping force provide guarantee.
What 3, pawl referred to moves horizontally, and improves the stability that pawl refers to and object contact area is clamped, improving clipping operation can
Control property, guarantee is provided for clipping operation；
4, the setting of arcuate structure improves the clamping effect of arc-shaped workpiece outer surface, ensure that clamping contact area, together
When improve the force stability of outer surface of workpiece；
5, the setting of non-slip mat improves bare terminal end and the skin-friction force that object is clamped, and ensure that bare terminal end and clamping object
Clamping effect, while realizing the corresponding reduction of clamping force, the transport structure for further improving clamping object is stablized
Property；
6, the setting of sealing ring ensure that hydraulic oil is rationally turning for energy to the promotion quality of promote-side in pressure chamber
Change provides guarantee, while preventing leaking for hydraulic oil, avoids the waste of resource.
Description of the drawings
Fig. 1 is the overall structure diagram of the multiple spot equalization clamping device of the present invention；
Fig. 2 is the structure enlargement diagram of a-quadrant in Fig. 1；
Fig. 3 is the structural profile illustration of the multiple spot equalization clamping device of the present invention；
Fig. 4 is the structure enlargement diagram of B area in Fig. 3；
In figure label for：Pawl refers to 1, clamping part 11, hydraulic cylinder 2, oil cylinder piston 21, bare terminal end 22, pressure chamber 23, promote-side
24, sealing ring 25, chuck body 3.
Specific implementation mode
The present invention is further described with reference to the accompanying drawings and detailed description.
As shown in Figure 1, the clamping device is scroll chuck.The scroll chuck will refer to driving mechanism using pawl to be evenly distributed on
Three movable claws on chuck body 3 refer to 1 and are moved radially, and then clamping object is clamped operation of taking.Three pawls refer to 1
Clamping part 11 be set as arcuate structure, by the operation principle of clamping jaw it is found that three pawls refer to 1 have fixed Clamping Center.
When three pawls, which refer to 1, carries out clipping operation under mating reaction, the clamping part 1 of three arcs then forms circular receiving area,
The operation of taking to round piece can be realized in turn.The contact area with object can be improved in arcuate structure simultaneously, ensure that and does not advise
The then clamping effect of workpiece.The clamping part 11 that each pawl refers to 1 is uniformly arranged that there are three hydraulic cylinders 2 towards clamping object.The hydraulic cylinder 2
Oil cylinder piston 21 axis from towards Clamping Center, while the pressure chamber 23 of three hydraulic cylinders 2 is connected, then the pressure at this time
Hydraulic oil in power chamber 23, which can be interconnected, to be flowed.Other two pawl refers to 1 and is also similarly arranged.When progress workpiece
When gripping, the pawl in chuck body 3 refers to driving mechanism and three pawls is driven to refer to 1 and translated towards Clamping Center.When workpiece
When outer surface is close to clamping part 11, the bare terminal end 22 of hydraulic piston 21 is in contact with outer surface of workpiece.It is in the outer surface of workpiece
When irregular surface, then certain bare terminal ends 22 can be caused to be in contact with workpiece surface, and remaining bare terminal end 22 is hanging exposed shape
State.The driving mechanism that pawl refers to continues driving claw and refers to 1 and moved towards workpiece, and the bare terminal end 22 contacted with workpiece is under pressure
It is moved towards pressure chamber 23.Bare terminal end 22 pushes promote-side 24 to be moved towards pressure chamber 23 at this time, corresponding pressure
Hydraulic oil in chamber 23 is also by the pressure of promote-side 24, and then by connecting pipe to be moved to remaining pressure smaller for hydraulic oil
At pressure chamber 23.
The promote-side 24 is circumferentially provided with sealing ring 25, as shown in figure 4, the promote-side 24 is circumferentially provided with sealing ring installation
Slot.Sealing ring 25 is arranged in sealing ring mounting groove, and sealing ring 25 is tight towards outer end and the periphery of pressure chamber 23 at this time
Closely connected conjunction ensure that promote-side 24 and the sealing paste of pressure chamber 23 are right, improve hydraulic oil in pressure chamber and be pushed away to promote-side
Kinoplaszm amount provides guarantee for the reasonable conversion of energy.The setting of sealing ring 25 prevents leaking for hydraulic oil simultaneously, avoids
The waste of resource.
Pawl, which refers to the power that the flowing of the hydraulic oil in 1 makes corresponding extrusion oil cylinder piston 21 be applied to outer surface of workpiece, to be realized
It reduces, it is excessive to workpiece damage to avoid active force, maintains workpiece quality.Refer to applying for the driving force of driving mechanism by pawl
Add, pawl refers to 1 and moved towards workpiece, and hydraulic oil is flowed according to the active force of different oil cylinder pistons 21 in moving process
It is dynamic, and then it is identical as the active force of workpiece to ensure that when reaching rational clamping position, same pawl refers to the bare terminal end 22 on 1, avoids
22 unbalance stress of piece-holder end leads to the appearance of workpiece deformation.Simultaneously when workpiece is thin-walled state, even if chucking power
Still not its can tolerance range, but since 22 active force of more bare terminal ends is identical.Each pawl refers to 1 pair of workpiece surface in clamping process
Active force also keeps identical, then ensures consistency of each bare terminal end 22 to workpiece active force, and then reduces the damage shape of workpiece
State.Simultaneously according to the shape size and material character of object to be held, the transformation of 11 shape of clamping part can be carried out.As object is clamped
When general shape is rectangle, then pawl refers to 1 clamping part 11 and may be configured as four opposite rectangular slabs.Then when workpiece material is relatively thin
The opposite quantity for increasing hydraulic cylinder 2, and 22 surface area of bare terminal end that can carry out oil cylinder piston 21 increases, to guarantee and workpiece
The increase of contact surface.When the outer surface irregularity of workpiece is larger, then appropriate the area of oil cylinder piston 21 can be reduced, and increase
The quantity of liquid feeding cylinder pressure 2, to ensure clamping effect.
As shown in Fig. 2, the structure is the structural schematic diagram of opposite two-jaw(ed)chuck.The setting of the chuck make pawl refer to 1 shifting
Dynamic direction is that horizontal radial moves, and the pawl refers to 1 relatively stable with contact area that object is clamped at this time, ensure that clamping effect.This
The rotation that can refer to 1 end by pawl relative to gripping operation that the outer pawl refers to 1 is realized.It is simultaneously raising clamping effect, oil cylinder piston
21 bare terminal end 22 is equipped with non-slip mat.Non-slip mat selects rubber material, and rubber material can root while ensureing that quality is clamped
Deformed upon according to the outer surface of workpiece, so as to avoid in clamping process to the damage of workpiece.
Particular embodiments described above has carried out further in detail the purpose of the present invention, technical solution and advantageous effect
It describes in detail bright, it should be understood that the above is only a specific embodiment of the present invention, is not intended to restrict the invention, it is all
Within the spirit and principles in the present invention, any modification, equivalent substitution, improvement and etc. done should be included in the guarantor of the present invention
Within the scope of shield.
Claims (5)
1. multiple spot equalization clamping device, including several pawls refer to (1) and pawl refers to driving device, the pawl refers to driving device for driving
Pawl refers to (1) and realizes object gripping operation, and it includes clamping part (11) that the pawl, which refers to (1), which is characterized in that clamping part (11) court
It is uniformly arranged several hydraulic cylinders (2) to clamping object, the hydraulic cylinder (2) includes oil cylinder piston (21) and pressure chamber (23), described
It is provided with hydraulic oil in pressure chamber (23), the same pawl refers to the pressure chamber (23) on (1) and is connected, the oil cylinder piston (21)
Bare terminal end (22) including extending clamping part (11) and the promote-side (24) in pressure chamber (23), the bare terminal end (22)
It is in contact with clamping object.
2. multiple spot equalization clamping device according to claim 1, which is characterized in that the pawl refers to driving device for driving
Pawl refers to (1) and moves horizontally.
3. multiple spot equalization clamping device according to claim 1 or 2, which is characterized in that the clamping part (11) is arc
Structure.
4. multiple spot equalization clamping device according to claim 1, which is characterized in that the bare terminal end (22) is provided with anti-skidding
Pad.
5. multiple spot equalization clamping device according to claim 1, which is characterized in that the promote-side (24) is arranged with sealing
It encloses (25).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810653004.8A CN108705113A (en) | 2018-06-22 | 2018-06-22 | Multiple spot equalization clamping device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810653004.8A CN108705113A (en) | 2018-06-22 | 2018-06-22 | Multiple spot equalization clamping device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108705113A true CN108705113A (en) | 2018-10-26 |
Family
ID=63872975
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810653004.8A Pending CN108705113A (en) | 2018-06-22 | 2018-06-22 | Multiple spot equalization clamping device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108705113A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109807364A (en) * | 2019-02-13 | 2019-05-28 | 莆田市宸桸装饰设计工程有限公司 | A kind of pipeline punching positioning device based on the clamping of multi-dot hydraulic pressure formula |
| CN113635097A (en) * | 2021-08-16 | 2021-11-12 | 浙江冠欣虹智能科技有限公司 | Fifth shaft suitable for numerical control machine tool to process complex workpiece |
| CN113670179A (en) * | 2021-10-25 | 2021-11-19 | 如皋市宏茂重型锻压有限公司 | Axle type forging finished product size detection device |
| CN113910276A (en) * | 2021-11-10 | 2022-01-11 | 中国水利水电建设工程咨询西北有限公司 | Intelligent arbitrary-shape material clamping device, system and method |
| CN114310524A (en) * | 2022-01-05 | 2022-04-12 | 徐州柏通铝业有限公司 | Double-sided grinding device for aluminum processing |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4042364A1 (en) * | 1990-05-07 | 1991-11-14 | Xaver Kerling | Chuck securing irregular work - has hydraulic rams supplied by common pressurised reservoir and shut off individually |
| JPH1085990A (en) * | 1996-09-19 | 1998-04-07 | Calsonic Corp | Clamp device |
| CN102102765A (en) * | 2009-12-18 | 2011-06-22 | 秦皇岛秦冶重工有限公司 | Multi-point clamping fan-shaped blind plate valve |
| CN102728765A (en) * | 2012-07-09 | 2012-10-17 | 江苏大学 | Annular part fixture |
| CN104043850A (en) * | 2014-06-27 | 2014-09-17 | 洛阳一米机械有限公司 | Floating clamp |
| CN105081384A (en) * | 2015-09-18 | 2015-11-25 | 江苏常宝普莱森钢管有限公司 | Anti-clamping-deformation elastic clamping jaw |
| CN208556027U (en) * | 2018-06-22 | 2019-03-01 | 苏州磐岩精密机械有限公司 | Multiple spot equalization clamping device |
-
2018
- 2018-06-22 CN CN201810653004.8A patent/CN108705113A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4042364A1 (en) * | 1990-05-07 | 1991-11-14 | Xaver Kerling | Chuck securing irregular work - has hydraulic rams supplied by common pressurised reservoir and shut off individually |
| JPH1085990A (en) * | 1996-09-19 | 1998-04-07 | Calsonic Corp | Clamp device |
| CN102102765A (en) * | 2009-12-18 | 2011-06-22 | 秦皇岛秦冶重工有限公司 | Multi-point clamping fan-shaped blind plate valve |
| CN102728765A (en) * | 2012-07-09 | 2012-10-17 | 江苏大学 | Annular part fixture |
| CN104043850A (en) * | 2014-06-27 | 2014-09-17 | 洛阳一米机械有限公司 | Floating clamp |
| CN105081384A (en) * | 2015-09-18 | 2015-11-25 | 江苏常宝普莱森钢管有限公司 | Anti-clamping-deformation elastic clamping jaw |
| CN208556027U (en) * | 2018-06-22 | 2019-03-01 | 苏州磐岩精密机械有限公司 | Multiple spot equalization clamping device |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109807364A (en) * | 2019-02-13 | 2019-05-28 | 莆田市宸桸装饰设计工程有限公司 | A kind of pipeline punching positioning device based on the clamping of multi-dot hydraulic pressure formula |
| CN113635097A (en) * | 2021-08-16 | 2021-11-12 | 浙江冠欣虹智能科技有限公司 | Fifth shaft suitable for numerical control machine tool to process complex workpiece |
| CN113670179A (en) * | 2021-10-25 | 2021-11-19 | 如皋市宏茂重型锻压有限公司 | Axle type forging finished product size detection device |
| CN113670179B (en) * | 2021-10-25 | 2022-02-08 | 如皋市宏茂重型锻压有限公司 | Axle type forging finished product size detection device |
| CN113910276A (en) * | 2021-11-10 | 2022-01-11 | 中国水利水电建设工程咨询西北有限公司 | Intelligent arbitrary-shape material clamping device, system and method |
| CN114310524A (en) * | 2022-01-05 | 2022-04-12 | 徐州柏通铝业有限公司 | Double-sided grinding device for aluminum processing |
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