CN109702525A - Fixed device - Google Patents
Fixed device Download PDFInfo
- Publication number
- CN109702525A CN109702525A CN201711016017.6A CN201711016017A CN109702525A CN 109702525 A CN109702525 A CN 109702525A CN 201711016017 A CN201711016017 A CN 201711016017A CN 109702525 A CN109702525 A CN 109702525A
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- accepting hole
- hole
- workpiece
- piston rod
- piston
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Abstract
The present invention proposes a kind of fixed device, for the workpiece at least one through-hole to be fixed, it includes pedestal, at least one pressing mechanism and driving mechanism, at least one accepting hole and at least one venthole are offered on pedestal, each venthole is communicated with corresponding accepting hole, each pressing mechanism includes piston rod, piston, pressing piece, elastic component and connecting rod, the two sides of piston rod offer confined planes respectively, when fixed workpiece, pressing piece passes through the corresponding through-hole of workpiece, driving mechanism drive link is mobile to drive pressing piece to turn an angle to drive piston rod rotation, gas is passed through into corresponding accepting hole by each venthole to drive piston is mobile to drive piston rod mobile, to drive pressing piece is mobile to fix to press workpiece, when discharging workpiece, gas in each accepting hole is released via corresponding venthole It puts, by the elastic-restoring force of elastic component so that piston driving pressing piece discharges workpiece far from workpiece movement.
Description
Technical field
It is especially a kind of to be filled for workpiece to be carried out fixed the fixing of automatic pressing the present invention relates to a kind of fixed device
It sets.
Background technique
When carrying out processing keyboard hole using shell of the CNC board to notebook, shell need to be fixed in fixed fixture,
To guarantee that CNC board processes stroke and machining area, the design of fixed fixture height needs very low.Meanwhile existing fixed fixture
Fixed shell is adsorbed merely with vacuum chuck and easily loosens shell, to influence the machining accuracy of shell.
Summary of the invention
In view of the above situation, it is necessary to which a kind of fixing-stable and fixation device convenient for mounting and clamping are provided.
A kind of fixed device, for the workpiece at least one through-hole to be fixed, which includes pedestal
And at least one pressing mechanism, the fixation device further include the driving mechanism being set on the pedestal, offered on the pedestal to
A few accepting hole and at least one venthole, each venthole are communicated with the corresponding accepting hole, each pressing mechanism
Including piston rod, piston, pressing piece, elastic component and connecting rod, the two sides of the piston rod offer confined planes respectively, and the one of the stopper rod
End slidably passes through the corresponding accepting hole and protrudes from the pedestal, which is set on the piston rod and is contained in corresponding
In the accepting hole, which is set to one end that the piston rod protrudes from the pedestal, which is sheathed on the piston rod,
One end of the connecting rod, which is run through, offers limit hole to wear one end that the piston rod has the confined planes, and the connecting rod is far from the piston
One end of bar stretches out the accepting hole and is connected with the driving mechanism, and the both ends of the elastic component support the piston and the company respectively
Bar, when fixing the workpiece, which passes through the corresponding through-hole of the workpiece, which drives the connecting rod mobile to drive
The piston rod rotation and drive the pressing piece to turn an angle, be passed through by each venthole into the corresponding accepting hole
Gas drives the piston rod mobile to drive the piston mobile, thus drive the pressing piece mobile with by the workpiece by pressing
Fixed, when discharging the workpiece, the gas in each accepting hole passes through the elasticity of the elastic component via corresponding venthole release
Restoring force is so that the piston driving pressing piece is mobile far from the workpiece and discharges the workpiece.
Above-mentioned fixed device drives simultaneously by the way that connecting rod is arranged on the piston rod of each pressing mechanism, and by driving mechanism
The connecting rod of each pressing mechanism drives pressing piece to rotate to drive piston rod rotation, while piston cooperation elastic component band piston
Bar is mobile and makes pressing piece that workpiece is pressed fixed or release, improves the clamping efficiency of workpiece.
Detailed description of the invention
Fig. 1 is the stereoscopic schematic diagram of the fixation device of an embodiment of the present invention.
Fig. 2 is the perspective exploded view that another visual angle of device is fixed shown in Fig. 1.
Fig. 3 is the stereoscopic schematic diagram that another visual angle of pedestal of device is fixed shown in Fig. 1.
Fig. 4 is the stereoscopic schematic diagram of the piston rod that device is fixed shown in Fig. 2, piston and elastic component.
Fig. 5 is that device is fixed shown in Fig. 1 along the diagrammatic cross-section of V-V line.
Main element symbol description
The present invention that the following detailed description will be further explained with reference to the above drawings.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that the described embodiment is only a part of the embodiment of the present invention, instead of all the embodiments.Based on this
Embodiment in invention, every other reality obtained by those of ordinary skill in the art without making creative efforts
Example is applied, shall fall within the protection scope of the present invention.
It should be noted that it can be when an element or component are considered as " connection " another element or component
It is directly connected to another element or component or may be simultaneously present the element or component being centrally located.When an element or group
Part is considered as " setting exist " another element or component, it, which can be, is set up directly on another element or component or can
The element or component being centrally located can be existed simultaneously.
Unless otherwise defined, all technical and scientific terms used herein and belong to technical field of the invention
The normally understood meaning of technical staff is identical.Term as used herein in the specification of the present invention is intended merely to description tool
The purpose of the embodiment of body, it is not intended that in the limitation present invention.Term " and or " used herein includes one or more phases
Any and all combinations of the listed item of pass.
Referring to Fig. 1, the present invention provides a kind of fixation device 100 that can carry out pressing fixation to workpiece 200.Fixed dress
Setting 100 includes pedestal 10, at least one pressing mechanism 20 and driving mechanism 30.Pedestal 10 is for being installed in a processing unit (plant) (figure
Do not show) in order to being processed to the workpiece 200 being fixed on fixed device 100.At least one pressing mechanism 20 is set to
With fixed or release workpiece 200 on pedestal 10.Driving mechanism 30 is set on pedestal 10 to drive at least one pressing mechanism
20 rotations.In the present embodiment, the substantially rectangular plate of workpiece 200, through offering at least one through-hole 210 and extremely on workpiece 200
A few location hole 220, the quantity of pressing mechanism 20 are two, but not limited to this.
Please refer to Fig. 2 and Fig. 3, the generally rectangular shaped plate of pedestal 10 comprising first surface 11 and and first surface
11 opposite second surfaces 12.First surface 11 is for carrying workpiece 200.Offered on pedestal 10 guide groove 13, fixing groove 14,
At least one accepting hole 15 and at least one venthole 16.Guide groove 13 is opened on second surface 12 and runs through the one of pedestal 10
End.Fixing groove 14 is opened on second surface 12 and communicates with guide groove 13.
Each accepting hole 15 runs through first surface 11 and second surface 12.In the present embodiment, in the present embodiment, each receiving
Hole 15 is stepped hole comprising the first accepting hole 151, the second accepting hole 152 and third accepting hole 153.First accepting hole 151,
Second accepting hole 152 and third accepting hole 153 are sequentially communicated and coaxially.The aperture of first accepting hole 151 is greater than the second accepting hole
152 aperture.The aperture of second accepting hole 152 is greater than the aperture of third accepting hole 153.First accepting hole 151 runs through the second table
Face 12.First accepting hole 151 of each accepting hole 15 is communicated with guide groove 13.Third accepting hole 153 runs through first surface 11.Extremely
A few venthole 16 extends along the axis direction perpendicular to accepting hole 15 and runs through the side of pedestal 10.Each venthole 16 with
Second accepting hole 152 of corresponding accepting hole 15 communicates in order to ventilate into the second accepting hole 152.Each venthole 16 and one
Feeder (not shown) is connected to be passed through gas to the second accepting hole 152 of corresponding accepting hole 15.In the present embodiment, receive
The quantity for holding hole 15 and venthole 16 is all two, and two accepting holes 15 are located at the same side of guide groove 13, and fixing groove 14
Between two accepting holes 15, but not limited to this.
Referring to Fig. 1, in the present embodiment, at least one positioning pin 17 is additionally provided on the first surface 11 of pedestal 10.
Positioning pin 17 can pass through on workpiece 200 corresponding location hole 220 to position to workpiece 200.
Please refer to Fig. 2 to Fig. 5, each pressing mechanism 20 includes piston rod 21, piston 22, pressing piece 23, supporting element
24, elastic component 25, end cap 26, connecting rod 27 and promotion pin 28.Piston rod 21 is substantially rod-shaped in cylinder.As shown in figure 4, piston rod 21
Two sides offer confined planes 211 respectively.Two confined planes 211 are parallel to each other and close to one end of piston rod 21.Piston rod 21
One end slidably pass through corresponding accepting hole 15 third accepting hole 153 and protrusion first surface 11.Piston 22 is set to work
Substantial middle position on stopper rod 21 and positioned at piston rod 21.Piston 22 is slidably contained in the second receipts of corresponding accepting hole 15
Hold in hole 152.Pressing piece 23 is set to one end that piston rod 21 protrudes from first surface 11.Supporting element 24 is substantially in the form of annular discs.
Supporting element 24 is set in the first accepting hole 151 of corresponding accepting hole 15, and 24 substantial middle position of supporting element, which runs through, to be offered
First perforating 241 in order to piston rod 21 there is one end of confined planes 211 to pass through.Elastic component 25 be sheathed on piston rod 21 and
Its both ends supports piston 22 and supporting element 24 respectively and provides elastic-restoring force with the movement for piston 22.End cap 26 is substantially in circle
Shape.End cap 26 is covered in the opening of the first accepting hole 151 of corresponding accepting hole 15.26 substantial middle position of end cap, which runs through, to be opened
Equipped with the second perforating 261 in order to which there is piston rod 21 one end of confined planes 211 to pass through.
Connecting rod 27 is substantially in long strip-board shape.Connecting rod 27, which runs through, offers limit hole 271.Limit hole 271 is close to connecting rod 27
One end.Limit hole 271 is rectangular opening to accommodate the one end for wearing piston rod 21 and having confined planes 211.Connecting rod 27 has limit hole
271 one end is between supporting element 24 and end cap 26 and connecting rod 27 protrudes into guide groove 13 far from one end of piston rod 21.It pushes away
Dynamic pin 28 is set to the one end of connecting rod 27 far from piston rod 21 and towards guide groove 13.The two side walls of limit hole 271 (are not marked
Show) it can be slidably matched with two confined planes 211 of piston rod 21 so that connecting rod 27 drives piston rod 21 to rotate.
In the present embodiment, supporting element 24 is equipped with positive stop lug boss 242 far from the side of piston 22.Positive stop lug boss 242 is substantially
Extend in arc-shaped and around the first perforating 241 to limit the slewing area of corresponding connecting rod 27.
Driving mechanism 30 includes actuator 31, impeller 32, locating part 33 and guide part 34.Actuator 31 is set to pedestal
It 10 one end and partially protrudes into guide groove 13.Impeller 32 is substantially in long strip-board shape.Impeller 32 is slidingly arranged at guiding
It is connected in slot 13 and with actuator 31.Impeller 32 moves back and forth under the driving of actuator 31 along guide groove 13.Impeller
32, which offer at least one towards the side of second surface 12, pushes slot 321.Each promotion slot 321 pushes pin 28 remote for accommodating
One end from connecting rod 27.Locating part 33 is substantially in long plate shape.Locating part 33 is partially housed in fixing groove 14 and is located at impeller
On 32.Run through on locating part 33 and offers at least one limit opening 331.Each limit opening 331 and each promotion slot 321 1
One is corresponding to limit the movement for pushing pin 28.Guide part 34 is substantially in a rectangular parallelepiped shape.Guide groove 341 is offered on guide part 34.It leads
Slot 341 runs through the opposite end of guide part 34.Guide part 34 is contained in guide groove 13 and the output shaft of actuator 31 (is not marked
Show) pass through guide groove 341.In the present embodiment, actuator 31 is straight line cylinder, but not limited to this, in other embodiments, actuator
31 may be other linear actuators, has no effect on actuator 31 and impeller 32 is driven to move back and forth.
Please refer to Fig. 1 to Fig. 5, when assembling, one end of the piston rod 21 of each pressing mechanism 20 is slidably passed through
The third accepting hole 153 and protrusion first surface 11 of corresponding accepting hole 15, and piston 22 is set on piston rod 21 and is slided
It is contained in the second accepting hole 152 of corresponding accepting hole 15 dynamicly.Pressing piece 23 is set to piston rod 21 and protrudes from first
The one end on surface 11, and elastic component 25 is sheathed on piston rod 21.Supporting element 24 is set to the of corresponding accepting hole 15
In one accepting hole 151 and one end of elastic component 25 is supported, and one end of connecting rod 27 is sheathed on piston rod 21 by limit hole 271
One end with confined planes 211.End cap 26 is covered in the opening of the first accepting hole 151 of corresponding accepting hole 15.It will drive
Moving part 31 is set to one end of pedestal 10 and partially protrudes into guide groove 13, and impeller 32 is slidingly arranged at guide groove 13
It is interior and be connected with actuator 31.Locating part 33 is partially housed in fixing groove 14, and guide part 34 is contained in guide groove
In 13 and the output shaft (not indicating) of actuator 31 passes through guide groove 341.The promotion pin 28 of each pressing mechanism 20 is set to connecting rod
27 one end far from piston rod 21 and promotion pin 28 are contained in far from one end of connecting rod 27 to be pushed in slot 321 accordingly, is completed
Assembling to entire fixed device 100.
When fixed workpiece 200, pressing piece 23 passes through the corresponding through-hole 210 of workpiece 200 so that workpiece 200 is placed in the first table
On face 11.Actuator 31 drives impeller 32 so that pushing slot 321 to pull pushes the movement of pin 28, to drive connecting rod 27 mobile.
Connecting rod 27 is cooperated by two confined planes 211 of limit hole 271 and piston rod 21 to drive piston rod 21 to rotate, and is pressed to drive
Casting die 23 turns an angle.Gas is passed through into corresponding accepting hole 15 by each venthole 16 to drive piston 22 mobile
And drive piston rod 21 mobile, to drive pressing piece 23 is mobile to fix to press workpiece 200.When discharging workpiece 200, each
Gas in accepting hole 15 is discharged by corresponding venthole 16, by the elastic-restoring force of elastic component 25 so that piston 22 drives
Pressing piece 23 is mobile far from workpiece 200 and discharges workpiece 200.Actuator 31 drives impeller 32 again and drives pressing piece 23
Certain angle is rotated backward, to make workpiece 200 to smoothly remove on first surface 11.
Each pressing mechanism 20 include piston rod 21, piston 22, pressing piece 23, supporting element 24, elastic component 25, end cap 26,
Connecting rod 27 and promotion pin 28, but not limited to this, in other embodiments, supporting element 24, end cap 26 and promotion pin 28 can remove,
One end of elastic component 25 directly supports connecting rod 27, and one end of connecting rod 27 is directly articulated with the impeller 32 of driving mechanism 30, and
The movement that elastic component 25 is piston 22 is not influenced, and elastic-restoring force and 30 drive link 27 of driving mechanism drive piston rod 21 are provided
Rotation.
Driving mechanism 30 includes actuator 31, impeller 32, locating part 33 and guide part 34, but not limited to this, other
In embodiment, locating part 33 and guide part 34 can be removed, and had no effect on actuator 31 by impeller 32 and pushed piston rod 21
Rotation.
Above-mentioned fixed device 100 on the piston rod 21 of each pressing mechanism 20 by being arranged connecting rod 27, and by driving machine
Structure 30 drives the connecting rod 27 of each pressing mechanism 20 simultaneously to drive piston rod 21 to rotate and pressing piece 23 is driven to rotate, living simultaneously
22 cooperation elastic component 25 of plug drives piston rod 21 mobile and makes pressing piece 23 that workpiece 200 is pressed fixed or release, improves
The clamping efficiency of workpiece 200.
In addition, those skilled in the art can also do other variations in spirit of that invention, certainly, these are smart according to the present invention
The variation that mind is done, should all be included in scope of the present invention.
Claims (10)
1. a kind of fixed device, for the workpiece at least one through-hole to be fixed, the fixation device include pedestal and
At least one pressing mechanism, it is characterised in that: the fixation device further includes the driving mechanism being set on the pedestal, on the pedestal
At least one accepting hole and at least one venthole are offered, each venthole is communicated with the corresponding accepting hole, each should
Pressing mechanism includes piston rod, piston, pressing piece, elastic component and connecting rod, and the two sides of the piston rod offer confined planes respectively, should
One end of stopper rod slidably passes through the corresponding accepting hole and protrudes from the pedestal, which is set on the piston rod and accommodates
In in the corresponding accepting hole, which is set to one end that the piston rod protrudes from the pedestal, which is sheathed on this
On piston rod, one end of the connecting rod, which is run through, offers limit hole to wear one end that the piston rod has the confined planes, the connecting rod
One end far from the piston rod stretches out the accepting hole and is connected with the driving mechanism, and the both ends of the elastic component support the work respectively
Plug and the connecting rod, when fixing the workpiece, which passes through the corresponding through-hole of the workpiece, which drives the connecting rod to move
It is dynamic to drive the pressing piece to turn an angle to drive the piston rod rotation, by each venthole to the corresponding receiving
It is passed through gas in hole to drive the piston mobile and drives the piston rod mobile, to drive the pressing piece mobile with by the workpiece
Pressing is fixed, and when discharging the workpiece, the gas in each accepting hole passes through the elastic component via corresponding venthole release
Elastic-restoring force so that the piston driving pressing piece is mobile far from the workpiece and discharges the workpiece.
2. fixed device as described in claim 1, it is characterised in that: the pedestal include first surface and with the first surface phase
Pair second surface, the first surface is for carrying the workpiece, and each accepting hole is through the first surface and the second surface.
3. fixed device as claimed in claim 2, it is characterised in that: each accepting hole includes the first accepting hole, the second receipts
Hold hole and third accepting hole, first accepting hole, second accepting hole and the third accepting hole are sequentially communicated and coaxially, this first
The aperture of accepting hole is greater than the aperture of second accepting hole, and the aperture of second accepting hole is greater than the aperture of the third accepting hole,
First accepting hole runs through the second surface, which runs through the first surface, at least one venthole is along vertical
Extend and run through the side of the pedestal in the axis direction of accepting hole, each venthole and the corresponding second accepting hole phase
Logical, one end of the piston rod slidably passes through the corresponding third accepting hole and protrudes the first surface, which slidably receives
It is dissolved in corresponding second accepting hole.
4. fixed device as claimed in claim 3, it is characterised in that: each pressing mechanism further includes supporting element, the support
Part is set in corresponding first accepting hole, which, which runs through, offers the first perforating in order to the piston
There is bar one end of the confined planes to pass through, and the both ends of the elastic component support the piston and the supporting element respectively.
5. fixed device as claimed in claim 4, it is characterised in that: the supporting element is equipped with limit far from the side of the piston
Boss, the positive stop lug boss extend in arc-shaped and around first perforating to limit the slewing area of the corresponding connecting rod.
6. fixed device as claimed in claim 4, it is characterised in that: be also provided with guide groove on the pedestal, each receiving
First accepting hole in hole is communicated with the guide groove, and each pressing mechanism further includes pushing pin, which is set to the connecting rod
Far from the piston rod one end and towards the guide groove, which includes actuator and impeller, which is set to
One end of the pedestal and partially protrude into the guide groove, the impeller be slidingly arranged in the guide groove and with the actuator phase
Connection, the impeller the driving lower edge of the actuator guide groove move back and forth, the impeller towards the second surface one
Side offers at least one and pushes slot, and each promotion slot is for accommodating the one end of the promotion pin far from the connecting rod.
7. fixed device as claimed in claim 6, it is characterised in that: be also provided with fixing groove on the pedestal, the driving mechanism
It further include locating part, which is partially housed in the fixing groove and is located on the impeller, runs through on the locating part and opens up
There is at least one limit opening, each limit opening and each promotion slot correspond the movement to limit the promotion pin.
8. fixed device as claimed in claim 6, it is characterised in that: the driving mechanism further includes guide part, on the guide part
Guide groove is offered, which runs through the opposite end of the guide part, which is contained in the guide groove and the actuator
Output shaft passes through the guide groove.
9. fixed device as claimed in claim 6, it is characterised in that: each pressing mechanism further includes end cap, end cap envelope
It is placed in the opening of corresponding first accepting hole, which, which runs through, offers the second perforating in order to the piston
There is bar one end of the confined planes to pass through, which there is one end of limit hole to be located between the supporting element and the end cap.
10. fixed device as claimed in claim 6, it is characterised in that: the actuator is straight line cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711016017.6A CN109702525B (en) | 2017-10-25 | 2017-10-25 | Fixing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711016017.6A CN109702525B (en) | 2017-10-25 | 2017-10-25 | Fixing device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109702525A true CN109702525A (en) | 2019-05-03 |
| CN109702525B CN109702525B (en) | 2021-09-28 |
Family
ID=66252279
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711016017.6A Active CN109702525B (en) | 2017-10-25 | 2017-10-25 | Fixing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109702525B (en) |
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| DE102004008624B4 (en) * | 2004-02-21 | 2008-01-24 | Daimler Ag | Recording device of a measuring device |
| KR20140001304A (en) * | 2012-06-25 | 2014-01-07 | 씨티에스(주) | Display glass substrate centering device |
| CN103831650A (en) * | 2014-03-03 | 2014-06-04 | 杭州钰友精密机械有限公司 | Fixture for machining holes in large and small ends of automotive engine connecting rod |
| CN204545829U (en) * | 2015-04-22 | 2015-08-12 | 深圳长城开发科技股份有限公司 | Product Assembly mechanism |
| CN105345514A (en) * | 2015-11-04 | 2016-02-24 | 广东长盈精密技术有限公司 | Clamp |
| CN105501935A (en) * | 2015-12-28 | 2016-04-20 | 嵊州市意海电机配件厂 | Direction conversion device for mechanical workpiece conveying line |
| CN205237896U (en) * | 2015-12-18 | 2016-05-18 | 深圳市明信测试设备有限公司 | Cell -phone clamping mechanism |
| CN205703384U (en) * | 2016-02-16 | 2016-11-23 | 曹国乐 | There is the work platforms of many grasping systems |
| CN106881613A (en) * | 2017-04-05 | 2017-06-23 | 广东长盈精密技术有限公司 | A kind of clamping device and its method for clamping and release |
| CN107263167A (en) * | 2017-06-27 | 2017-10-20 | 鹰普（中国）有限公司 | The pneumatic vertical plus fixture of housing |
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2017
- 2017-10-25 CN CN201711016017.6A patent/CN109702525B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102004008624B4 (en) * | 2004-02-21 | 2008-01-24 | Daimler Ag | Recording device of a measuring device |
| KR20140001304A (en) * | 2012-06-25 | 2014-01-07 | 씨티에스(주) | Display glass substrate centering device |
| CN103831650A (en) * | 2014-03-03 | 2014-06-04 | 杭州钰友精密机械有限公司 | Fixture for machining holes in large and small ends of automotive engine connecting rod |
| CN204545829U (en) * | 2015-04-22 | 2015-08-12 | 深圳长城开发科技股份有限公司 | Product Assembly mechanism |
| CN105345514A (en) * | 2015-11-04 | 2016-02-24 | 广东长盈精密技术有限公司 | Clamp |
| CN205237896U (en) * | 2015-12-18 | 2016-05-18 | 深圳市明信测试设备有限公司 | Cell -phone clamping mechanism |
| CN105501935A (en) * | 2015-12-28 | 2016-04-20 | 嵊州市意海电机配件厂 | Direction conversion device for mechanical workpiece conveying line |
| CN205703384U (en) * | 2016-02-16 | 2016-11-23 | 曹国乐 | There is the work platforms of many grasping systems |
| CN106881613A (en) * | 2017-04-05 | 2017-06-23 | 广东长盈精密技术有限公司 | A kind of clamping device and its method for clamping and release |
| CN107263167A (en) * | 2017-06-27 | 2017-10-20 | 鹰普（中国）有限公司 | The pneumatic vertical plus fixture of housing |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109702525B (en) | 2021-09-28 |
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