CN106826318B - Single cylinder double-locking Pneumatic vacuum flexible fixture - Google Patents
Single cylinder double-locking Pneumatic vacuum flexible fixture Download PDFInfo
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- CN106826318B CN106826318B CN201710186861.7A CN201710186861A CN106826318B CN 106826318 B CN106826318 B CN 106826318B CN 201710186861 A CN201710186861 A CN 201710186861A CN 106826318 B CN106826318 B CN 106826318B
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- cylinder
- spring
- retracting cylinder
- locking
- spring supporting
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Classifications
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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
Abstract
Single cylinder double-locking Pneumatic vacuum flexible fixture, including pedestal, multiple spring supporting positioning units and pneuma-lock mechanism for being locked to spring supporting positioning unit, spring supporting positioning unit is installed on the base, pneuma-lock mechanism is installed on the base, and it is located between two spring supporting positioning units, two spring supporting positioning units share a pneuma-lock mechanism, vacuum suction is carried out to thin-wall part by sucker and is securely locked by pneuma-lock mechanism, to realize the reliable and stable clamping of workpiece；Sucker can automatic paste tightening workpiece surface, to curve form have adaptivity；The quick-clamping positioning that arbitrary surface can be realized using the fixture, effectively shortens part installation work-hour, while controlling the machining deformation of thin-walled parts, and then guarantee processing quality.
Description
Technical field
The present invention relates to parts fixation technical field more particularly to a kind of single cylinder double-locking Pneumatic vacuum flexible fixtures.
Background technique
Having numerous parts in the fields such as Aeronautics and Astronautics and automobile is the thin-wall part with complex-curved shape, due to thin
Wall pieces poor rigidity, easily-deformable, processing quality is difficult to ensure, common processing method mostly uses special tooling, and design is bent with workpiece
Shape consistent special tooling in face is bonded chucking surface with workpiece surface, and part shape changes then frock clamp and changes correspondingly,
For small lot or single-piece work, cause matched fixture value volume and range of product various since part shape is different,
Thus fixture manufacturing cost is high, the production cycle is long, is not able to satisfy the demand of actual production.
It is currently used for the TORRESTOOL that thin-wall curved-surface flexible part positioning tool is released with M. Torres company, Spain
Flexible Clamp System is most representative, and TORRESTOOL Flexible Clamp System is based on curved surface multi-point forming technique, using module
Change array architecture, however the support positional lever structure of the flexible fixture is complicated, adjustment mechanism quantity is more, and each adjustment mechanism
A control motor is needed, number of motors is more, and then causes fixture control difficulty big, and fixture involves great expense.
There are also combined type flexible fixtures at present, and combined type flexible fixture includes electric flexible multi-point support fixture and thin-walled hand
Ejector half adjusts fixture, these fixtures can be according to the Adjusting Shape Support Position of components, and structure is complicated for electronic adjustment mode, cost
Height, then speed is slow, positioning accuracy is poor for manual adjusting style, and needs special elevation carrection equipment.
Summary of the invention
Technical problem solved by the invention is to provide a kind of single cylinder double-locking Pneumatic vacuum flexible fixture, on solving
State the disadvantage in background technique.
Technical problem solved by the invention is realized using following technical scheme:
Single cylinder double-locking Pneumatic vacuum flexible fixture, including pedestal, multiple spring supporting positioning units and for spring
The pneuma-lock mechanism that support positioning unit is locked, spring supporting positioning unit are installed on the base, pneuma-lock mechanism
Installation on the base, and is located between two spring supporting positioning units；In spring supporting positioning unit, spring supporting positioning is single
Member is installed by fixing sleeve and is provided with groove for installing guide pad on the base, on fixing sleeve, above fixing sleeve with guiding
The position on block mounting groove opposite is provided with the rectangle locking hole for installation locking block；Retracting cylinder is mounted in fixing sleeve, retracting cylinder
It is moved axially in fixing sleeve, retracting cylinder guide groove, retracting cylinder guide groove and guide pad collective effect is provided in retracting cylinder, with
Limitation retracting cylinder is only capable of axial movement and is not able to rotate, the flexible power resources of retracting cylinder in the spring being mounted on inside retracting cylinder,
The deformation direction of spring lead limited spring, retracting cylinder upper end are equipped with ball cup, and venthole is provided in ball cup, ventilation
Hole one end is connect with vacuum tube, and the other end is connected to the axially extending bore in bulb fixing bolt；Spring lead is arranged in fixation
Inner hole lower end is covered, and is mounted on baffle, spring pocket is in spring lead, and spring one end and the shaft shoulder of spring lead connect
Touching, one end is contacted with ball cup, for flexibly supporting to spring supporting positioning unit, when not putting workpiece, by the work of spring
With retracting cylinder is in upper limit position；After putting workpiece, since spring is compressed, retracting cylinder can be with the shape of curve surface of workpiece
Adjust automatically in a certain range；Bulb upper and lower ends symmetrically respectively cut a part, and fixing bolt is threadedly coupled with ball cup, axial
Fixed bulb, ball cup are connect with bulb by ball-type chamber；Ball cup top is equipped with pallet, be equipped on pallet carrier with
Sucker, carrier, sucker and bulb constitute spherical pair, and spherical pair can freely swing in a certain range with respect to bulb；Carrier
There are three above supporting point, the corresponding vacuum switch of each sucker, each vacuum switches to correspond to a vacuum tube for upper setting,
When vacuum switch is opened, vacuum tube forms negative pressure to suction disc vacuum pumping, workpiece surface is sucked；In pneuma-lock mechanism, cylinder
On the base, cylinder is mounted on above cylinder block for seat installation, and the two sides for boring block are cammed surface, cylinder piston by cammed surface with
Block connection is bored, spring leaf, idler wheel and pin shaft are installed on latch segment, idler wheel is contacted with cone block composition line higher pair, latch segment and gas
Cylinder seat constitutes prismatic pair, utilizes spring leaf return.
In the present invention, spring supporting positioning unit is distributed on the base by M row × N array.
In the present invention, retracting cylinder outer diameter is identical as fixing sleeve internal diameter.
In the present invention, fixing sleeve lower end is provided with groove, is equipped with clip in groove, to prevent stop tab, spring and spring
Guide post abjection.
In the present invention, the groove opened on fixing sleeve is rectangular configuration.
In the present invention, pallet is circular configuration.
In the present invention, retracting cylinder is hollow structure.
In the present invention, the supporting point being arranged on carrier is support claw.
In the present invention, when work after cylinder activation, cylinder piston pushes cone block downlink, and cone block and idler wheel form line higher pair
Contact, cone block by idler wheel, pin shaft push latch segment to far from cone block axis direction move, latch segment using circular arc camber with stretch
The contact of contracting cylinder, locks retracting cylinder；When stopping working, the compressed air pressure release of cylinder, spring leaf pushes latch segment to return to initially
Position is separated with demonstrate,proving latch segment with retracting cylinder；Two latch segments are controlled using a cylinder, and then are realized to two spring supportings
The locking of positioning unit.
The utility model has the advantages that the configuration of the present invention is simple, clamping are reliable, the single cylinder double-locking with curve form adaptive, and
Part curve form is adapted to according to the variation that curve surface of workpiece method is sweared automatically using multiple positioning sucker disks, to realize flexible locating clip
It holds, effectively overcomes due to thin-wall part poor rigidity, the changeable brought clamping problem of curve form；Carrier and thin-wall part simultaneously
It is 3 points or Multi-contact, supporting point is evenly distributed, small compared with single-contact workpiece local deformation；Sucker is Ke Kuaisugenghuan simultaneously
Freely swing in a certain range, different size of sucker can be installed according to demand, easy to maintenance, each spring supporting positioning is single
Member can work independently.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of presently preferred embodiments of the present invention.
Fig. 2 is the support positioning unit structural schematic diagram in presently preferred embodiments of the present invention.
Fig. 3 is the pneuma-lock mechanism partial schematic diagram in presently preferred embodiments of the present invention.
Specific embodiment
In order to be readily apparent from the technical means, the creative features, the aims and the efficiencies achieved by the present invention clearly, tie below
Conjunction is specifically illustrating, and the present invention is further explained.
Referring to the single cylinder double-locking Pneumatic vacuum flexible fixture of Fig. 1~3, including pedestal 1, spring supporting positioning unit 2 and
Pneuma-lock mechanism 3, spring supporting positioning unit 2 include fixing sleeve 4, retracting cylinder 5, guide pad 6, ball cup 7, bulb 8, pallet
9, carrier 10, sucker 11, spring 12, spring lead 13, baffle 14, pneuma-lock mechanism 3 include cylinder block 15, cylinder
16, block 17, pin shaft 18, idler wheel 19, spring leaf 20 and latch segment 21 are bored；It is single that 12 spring supporting positioning are provided on pedestal 1
Member 2, and spring supporting positioning unit 2 presses 3 rows × 4 column distributions, spring supporting positioning unit 2 is expansible or reduces；Gas-operated lock
Tight mechanism 3 is mounted on pedestal 1, and is located between two spring supporting positioning units 2；Spring supporting positioning unit 2 passes through solid
Surely it covers 4 connecting flanges, bolt and pedestal 1 to connect, be provided on the fixing sleeve 4 of spring supporting positioning unit 2 for installing guide pad 6
Rectangular channel, above fixing sleeve 4 with the position on 6 mounting groove opposite of guide pad be provided with for installation locking block 21 rectangle locking
Hole, retracting cylinder 5 are mounted in fixing sleeve 4, and 5 outer diameter of retracting cylinder is identical as 4 internal diameter of fixing sleeve, and retracting cylinder 5 is in fixing sleeve 4
It moves axially, retracting cylinder guide groove, retracting cylinder guide groove and 6 collective effect of guide pad is provided in retracting cylinder, it is flexible to limit
Cylinder 5 is only capable of axial movement and is not able to rotate；It is fixedly installed with ball cup 7 above retracting cylinder 5, is provided with venthole in ball cup 7, leads to
Stomata one end is connect with external vacuum pipe, and the other end is connected to the axially extending bore in 8 fixing bolt of bulb；13 axis of spring lead
Baffle is mounted on 4 inner hole lower end of fixing sleeve, and is provided with groove in 4 lower end of fixing sleeve, is equipped with clip, in the trench to prevent stop tab
14, spring 12 and spring lead 13 are deviate from；Spring lead 13 is mounted on baffle 14, and 12 sets of spring in spring lead 13
On, and 12 one end of spring is contacted with the shaft shoulder of spring lead 13, the other end is contacted with ball cup 7, for fixed to spring supporting
Bit location 2 is flexibly supported, and when not putting workpiece, by the effect of spring 12, retracting cylinder 5 is in upper limit position；Put workpiece
Afterwards, since spring 12 is compressed, retracting cylinder 5 can adjust automatically in a certain range with the shape of curve surface of workpiece；
8 upper and lower ends of bulb symmetrically respectively cut a part, and through-hole runs through upper and lower end parts, fixing bolt and 7 screw thread of ball cup
Connection, axial restraint bulb 8；Ball cup 7 is connect with bulb 8 by ball-type chamber, and axially extending bore is provided on fixing bolt, axial logical
Hole is connected to the venthole in ball cup 7；Pallet 9 and carrier 10 are mounted on bulb 8, constitute spherical pair, spherical surface with bulb 8
Secondary opposite bulb 8 can freely swing in a certain range；There are three support claw on carrier 10, when work, 3 points and workpiece
Contact, supporting & stablizing are reliable；Sucker 11 is mounted on pallet 9, and the corresponding independent vacuum switch of each sucker 9 works as vacuum
When switch is opened, sucker 9 is vacuumized to form negative pressure, workpiece surface is sucked；
In pneuma-lock mechanism 3, cylinder block 15 is fixedly connected with pedestal 1, and cylinder 16 is fixed on 15 top of cylinder block, bores block
17 are connect with 16 piston shaft of cylinder by cammed surface；After cylinder 16 is connected when work, 16 piston of cylinder pushes cone 17 downlink of block, cone
Block 17 forms line higher pair with idler wheel 19 and contacts, and cone block 17 pushes latch segment 21 far from cone 17 axis of block by idler wheel 19 and pin shaft 18
Direction movement, latch segment 21 are mounted in the rectangle locking hole of 4 top of fixing sleeve, and latch segment 21 utilizes circular arc camber and retracting cylinder
5 contacts, locking retracting cylinder 5；When stopping working, the compressed air pressure release of cylinder 16, spring leaf 20 pushes latch segment 21 to return to
Initial position guarantees that latch segment 21 is separated with retracting cylinder 5.
The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention.The technology of the industry
Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and the above embodiments and description only describe this
The principle of invention, without departing from the spirit and scope of the present invention, various changes and improvements may be made to the invention, these changes
Change and improvement all fall within the protetion scope of the claimed invention.The claimed scope of the invention by appended claims and its
Equivalent thereof.
Claims (9)
1. single cylinder double-locking Pneumatic vacuum flexible fixture, including pedestal, multiple spring supporting positioning units and for spring branch
The pneuma-lock mechanism that support positioning unit is locked, which is characterized in that spring supporting positioning unit is installed on the base, pneumatically
Retaining mechanism is installed on the base, and is located between two spring supporting positioning units；In spring supporting positioning unit, spring branch
Support positioning unit is provided with the groove for installing guide pad by fixing sleeve installation on the base, on fixing sleeve, on fixing sleeve
The position of side and guide pad mounting groove opposite is provided with the rectangle locking hole for installation locking block；Retracting cylinder is mounted on fixing sleeve
Interior, retracting cylinder moves axially in fixing sleeve, and retracting cylinder guide groove is provided in retracting cylinder, and retracting cylinder guide groove and guide pad are total
Same-action, with limit retracting cylinder be only capable of axial movement be not able to rotate, retracting cylinder upper end is equipped with ball cup, is provided in ball cup
Venthole, venthole one end are connect with vacuum tube, and the other end is connected to the axially extending bore in bulb fixing bolt；Spring lead
It is arranged in fixed cover endoporus lower end, and is mounted on baffle, spring pocket is in spring lead, and spring one end and spring are oriented to
The shaft shoulder of column contacts, and one end is contacted with ball cup；Bulb upper and lower ends symmetrically respectively cut a part, fixing bolt and ball cup spiral shell
Line connection, ball cup are connect with bulb by ball-type chamber；Ball cup top is equipped with pallet, and carrier is equipped on pallet and is inhaled
Disk, carrier, sucker and bulb constitute spherical pair, and spherical pair can freely swing in a certain range with respect to bulb；On carrier
It is arranged there are three above supporting point, the corresponding vacuum switch of each sucker, each vacuum switch corresponds to a vacuum tube；Gas
In dynamic retaining mechanism, cylinder block is installed on the base, and cylinder is mounted on above cylinder block, and the two sides for boring block are cammed surface, gas
The cylinder piston is connect by cammed surface with cone block, and spring leaf, idler wheel and pin shaft are equipped on latch segment, and idler wheel and cone block composition line are high
Pair contact, latch segment and cylinder block constitute prismatic pair.
2. single cylinder double-locking Pneumatic vacuum flexible fixture according to claim 1, which is characterized in that spring supporting positioning is single
Member is distributed on the base by M row × N array.
3. single cylinder double-locking Pneumatic vacuum flexible fixture according to claim 1, which is characterized in that retracting cylinder outer diameter and solid
Surely set internal diameter is identical.
4. single cylinder double-locking Pneumatic vacuum flexible fixture according to claim 1, which is characterized in that fixing sleeve lower end is provided with
Groove is equipped with clip in groove.
5. single cylinder double-locking Pneumatic vacuum flexible fixture according to claim 1, which is characterized in that opens on fixing sleeve is recessed
Slot is rectangular configuration.
6. single cylinder double-locking Pneumatic vacuum flexible fixture according to claim 1, which is characterized in that pallet is round knot
Structure.
7. single cylinder double-locking Pneumatic vacuum flexible fixture according to claim 1, which is characterized in that retracting cylinder is hollow knot
Structure.
8. single cylinder double-locking Pneumatic vacuum flexible fixture according to claim 1, which is characterized in that be arranged on carrier
Supporting point is support claw.
9. described in any item single cylinder double-locking Pneumatic vacuum flexible fixtures according to claim 1~8, which is characterized in that work
When cylinder activation after, cylinder piston pushes cone block downlink, and cone block and idler wheel form line higher pair and contact, and cone block passes through idler wheel, pin shaft
Latch segment is pushed to move to far from cone block axis direction, latch segment is contacted using circular arc camber with retracting cylinder, and retracting cylinder is locked；When
When stopping working, the compressed air pressure release of cylinder, spring leaf pushes latch segment to return to initial position, to demonstrate,prove latch segment and retracting cylinder
Separation；Two latch segments are controlled using a cylinder, and then realize the locking to two spring supporting positioning units.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710186861.7A CN106826318B (en) | 2017-03-27 | 2017-03-27 | Single cylinder double-locking Pneumatic vacuum flexible fixture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710186861.7A CN106826318B (en) | 2017-03-27 | 2017-03-27 | Single cylinder double-locking Pneumatic vacuum flexible fixture |
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| Publication Number | Publication Date |
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| CN106826318A CN106826318A (en) | 2017-06-13 |
| CN106826318B true CN106826318B (en) | 2019-03-29 |
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| CN201710186861.7A Active CN106826318B (en) | 2017-03-27 | 2017-03-27 | Single cylinder double-locking Pneumatic vacuum flexible fixture |
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