CN208051385U - A kind of bowl-type thin-walled parts vacuum fixture - Google Patents
A kind of bowl-type thin-walled parts vacuum fixture Download PDFInfo
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- CN208051385U CN208051385U CN201820237915.8U CN201820237915U CN208051385U CN 208051385 U CN208051385 U CN 208051385U CN 201820237915 U CN201820237915 U CN 201820237915U CN 208051385 U CN208051385 U CN 208051385U
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Abstract
The utility model discloses a kind of bowl-type thin-walled parts vacuum fixtures,It includes bowl-type workpiece,It is used to support the support portion of bowl-type workpiece,For fixing the trim ring at the rim of a bowl position and the vacuumizing assembly for making bowl-type workpiece keep vacuum state above bowl-type workpiece,It is provided among the support portion and the matched bowl-type slot of bowl-type workpiece,The bowl-type workpiece is placed in the bowl-type slot of support portion,The bowl-type trench bottom is provided with air hole,It is corresponding below the air hole to be provided with vacuumizing assembly,The trim ring is arranged at the top of support portion for fixing bowl-type workpiece,It is attached by the first screw between the trim ring and support portion,Position is provided with the first sealing ring among the bowl-type slot circumference,The utility model avoids in process since vibrations are easy that bowl-type workpiece is made to deform,The generation of bottom sides shake knife phenomenon when avoiding processing,It ensure that machining accuracy and minimum clamping deformation.
Description
Technical field
The utility model is related to Workpiece clamping technical field more particularly to a kind of bowl-type thin-walled parts vacuum fixtures.
Background technology
Thin-wall workpiece refers to the thickness of the structure part thinner relative to entire workpiece volume, thin-wall workpiece（It justifies straight
The ratio between diameter D and wall thickness δ are usually δ=50~200 D/, and wall thickness δ is about 0.25~2mm）Processing be to compare spine in turning
The problem of hand, the reason is that thin-wall workpiece has the characteristics that light weight, saves material and compact-sized, but rigidity is poor, due to by
To the influence of vibration, process is easy to deformation.Meanwhile it can usually be generated at workpiece and processing during mechanical processing
A large amount of heat, the wall of thin-wall workpiece is than relatively thin, extremely easy temperature distortion.In the collective effect of stress deformation and temperature distortion
Under, the dimensional accuracy and form accuracy of workpiece are difficult to control, and lead to defect rate height.
Invention content
For problems of the prior art, the utility model provides a kind of bowl-type thin-walled parts vacuum fixture, solution
It has determined the problem of thin-wall workpiece is easily deformed in the prior art.
Technical solution used by the utility model is：A kind of bowl-type thin-walled parts vacuum fixture comprising bowl-type workpiece,
It is used to support the support portion of bowl-type workpiece, for fixing the trim ring at the rim of a bowl position above bowl-type workpiece and bowl-type workpiece being made to keep true
The vacuumizing assembly of dummy status is provided with and the matched bowl-type slot of bowl-type workpiece, the bowl-type workpiece among the support portion
It is placed in the bowl-type slot of support portion, the bowl-type trench bottom is provided with air hole, and the air hole lower section is corresponding to be provided with
Vacuumizing assembly, the trim ring are arranged at the top of support portion for fixing bowl-type workpiece, pass through between the trim ring and support portion
First screw is attached, and position is provided with the first sealing ring among the bowl-type slot circumference.
Preferably, the vacuum tank for being useful for placing vacuumizing assembly is correspondingly arranged below the air hole, it is described to vacuumize
Component includes exhaust tube, piston and the second screw, and the exhaust tube exists for being connected to air hole and vacuum tank, the piston setting
Inside vacuum tank, the internal piston is fixed with the second screw, and second screw can carry out a left side with piston in vacuum tank
It moves right.
Preferably, the vacuumizing assembly that the air hole and air hole lower section are arranged is provided with 6 groups altogether.
Preferably, the support portion periphery that the second screw is arranged is provided with the spacing ring for protecting the second screw,
The spacing ring is arranged in support portion bottom and is attached by third screw.
Preferably, it is provided with locating slot below the piston, is provided in the locating slot for being positioned to piston
Guide positioning pin, be fixed below support portion below the guide positioning pin.
Preferably, the piston nose periphery is provided with the second sealing ring.
Preferably, gap connection is carried out between second screw and piston.
Preferably, there are two second sealing ring is arranged altogether.
The advantageous effect that the utility model reaches is：The utility model provides a kind of bowl-type thin-walled parts vacuum fixture,
By the way that jig support section is designed to bowl-type shape, and vacuumizing assembly is set in jig support section bottom, by vacuumizing group
Part takes the air between bowl-type workpiece and support portion bowl-type slot away, makes to keep vacuum between bowl-type workpiece and support portion bowl-type slot
State, and bowl-type workpiece is protected by trim ring and the first sealing ring, it avoids in process since vibrations are easy to make
Bowl-type workpiece deforms, and the generation of bottom sides shake knife phenomenon, ensure that machining accuracy and minimum clamping when avoiding processing
Deformation.
Description of the drawings
The utility model is further illustrated below in conjunction with the accompanying drawings,
Fig. 1 is the front view of the utility model；
Fig. 2 is indicated in Fig. 1 along the sectional view in the directions A-A；
Fig. 3 is the stereogram of the utility model；
Fig. 4 be the utility model bowl-type workpiece and support section from when front view；
Fig. 5 is indicated in figure 3 along the sectional view in the directions B-B；
Fig. 6 be the utility model bowl-type workpiece and support section from when vertical view；
Fig. 7 is the upward view of the utility model；
Wherein, 1, bowl-type workpiece, 2, support portion, 21, bowl-type slot, 22, air hole, the 23, first screw, the 24, first sealing
Circle, 3, trim ring, 4, vacuumizing assembly, 41, vacuum tank, 42, exhaust tube, 43, piston, the 44, second screw, 45, locating slot, 46,
Guide positioning pin, the 47, second sealing ring, 5, spacing ring, 51, third screw.
Specific implementation mode
Specific embodiment of the present utility model is described further below in conjunction with the accompanying drawings.
Technical solution used by the utility model is：As shown in Figures 1 to 7, a kind of bowl-type thin-walled parts vacuum fixture,
It includes bowl-type workpiece 1, is used to support the support portion 2 of bowl-type workpiece 1, the pressure for fixing 1 top the rim of a bowl position of bowl-type workpiece
It encloses 3 and makes the vacuumizing assembly 4 of the holding vacuum state of bowl-type workpiece 1, be provided with and 1 phase of bowl-type workpiece among the support portion 2
The bowl-type slot 21 of cooperation, the bowl-type workpiece 1 are placed in the bowl-type slot 21 of support portion 2, and 21 bottom of bowl-type slot is provided with
Air hole 22,22 lower section of the air hole is corresponding to be provided with vacuumizing assembly 4, and the setting of the trim ring 3 is used at 2 top of support portion
In fixed bowl-type workpiece 1, it is attached by the first screw 23 between the trim ring 3 and support portion 2,21 circumference of bowl-type slot
Intermediate position is provided with the first sealing ring 24.
In this application, bowl-type workpiece 1 is placed in the bowl-type slot 21 of support portion 2, is first passed through trim ring 3 and is pushed down bowl-type workpiece
1 top outer, then trim ring 3 and support portion 2 are fixed by the first screw 23, to reach to 1 top of bowl-type workpiece
The effect being fixed；By the way that the first sealing ring 24 is arranged among support portion 2, increase between bowl-type workpiece 1 and support portion 2
Frictional force, bowl-type slot 21 uses NBR nitrile rubber sealing rings with 1 touching position of bowl-type workpiece in the application, and to bowl-type
Workpiece 1 is vacuumized with 21 touching position of bowl-type slot, and bowl-type workpiece 1 is made to keep vacuum state with 21 touching position of bowl-type slot,
The vibrations generated in process are reduced, protective effect are played to bowl-type workpiece 1, it is therefore prevented that bowl-type workpiece 1 is processed
It is deformed in journey, ensure that the machining accuracy of bowl-type workpiece 1.
Preferable scheme is that 22 lower section of the air hole is correspondingly arranged the vacuum tank 41 for being useful for placing vacuumizing assembly 4,
The vacuumizing assembly 4 includes exhaust tube 42, piston 43 and the second screw 44, and the exhaust tube 42 is for being connected to 22 He of air hole
Vacuum tank 41, the piston 43 are arranged inside vacuum tank 41, are fixed with the second screw 44 inside the piston 42, and described second
Screw 44 can be moved left and right with piston 43 in vacuum tank 41.
It is connected to air hole 22 and vacuum tank 41 by exhaust tube 42, vacuum subassembly 4 is arranged in vacuum tank 41, the second screw
44 are arranged 43 in piston, and piston 43 is arranged in vacuum tank 41, with piston by pulling out the second screw 44
43 move out, and then the air that bowl-type workpiece 1 is in contact with bowl-type slot 21 is emptied, and make bowl-type workpiece 1 in processing
In vacuum state.
Preferable scheme is that the vacuumizing assembly 4 that the air hole 22 and 22 lower section of air hole are arranged is provided with 6 groups altogether,
The vacuumizing assembly 4 that air hole 22 and 22 lower section of air hole are arranged is uniformly arranged around 21 lower circumference of bowl-type slot, makes bowl-type work
Part 1 and 21 touching position of bowl-type slot keep uniform force state, ensure that bowl-type workpiece 1 in processing due to discontinuity and
It is deformed, ensure that the machining accuracy of bowl-type workpiece 1.
Preferable scheme is that being provided in 2 periphery of support portion that the second screw 44 is arranged for protecting the second screw
44 spacing ring 5, spacing ring 5, which is arranged, to be attached in 2 bottom of support portion and by third screw 51, by spacing ring 5 to the
Two screws 44 are fixed, it is therefore prevented that the second screw 44 is loosened due to vibrations in process, and then destroys vacuum state.
Preferable scheme is that the lower section of the piston 43 is provided with locating slot 45, be provided in the locating slot 45 for pair
The guide positioning pin 46 that piston 43 is positioned, 46 lower section of the guide positioning pin is fixed on 2 lower section of support portion, by that will be oriented to
Positioning pin 46 is arranged in locating slot 45, when piston 43 is moved left and right, can only be carried out along 46 direction of guide positioning pin
Mobile, guide positioning pin 46 plays the role of guiding movement to piston 43.
Preferable scheme is that 43 front end periphery of the piston is provided with the second sealing ring 47, pass through the second sealing ring
47 setting ensure that air-tightness of the piston 43 during the motion in seal groove.
Preferable scheme is that carrying out gap connection between second screw 44 and piston 43, piston 43 can guarantee in this way
There is certain amount of floating when back-and-forth motion.
Preferable scheme is that there are two the total settings of second sealing ring 47.
The operation principle of the utility model is that bowl-type workpiece is placed in the bowl-type slot of support portion first, first passes through pressure
Circle pushes down outer above bowl-type workpiece, then trim ring and support portion are fixed by the first screw, to reach to bowl-type
The effect being fixed above workpiece is connected to air hole and vacuum tank by exhaust tube, and vacuum subassembly is arranged in vacuum tank, leads to
It crosses and pulls out the second screw, moved out by the second screw belt piston, the sky that bowl-type workpiece is in contact with bowl-type slot
Gas is emptied, and so that bowl-type workpiece is in vacuum state in processing, is processed at this time to bowl-type workpiece.
First sealing ring is set among support portion, increases the frictional force between bowl-type workpiece and support portion, reduces and adds
The vibrations generated during work, play protective effect, it is therefore prevented that bowl-type workpiece generates change in process to bowl-type workpiece
Shape ensure that the machining accuracy of bowl-type workpiece；Spacing ring is arranged in support portion bottom and is attached by third screw, passes through
The second screw of spacing ring pair is fixed, it is therefore prevented that the second screw is loosened due to vibrations in process, and then destroys vacuum
State；It is provided with locating slot below piston, guide positioning pin is provided in locating slot, it, can only when piston is moved left and right
It is moved along guide positioning pin direction, guide positioning pin plays the role of guiding movement to piston.
After the completion of bowl-type work pieces process, first third screw is opened, the spacing ring for being looped around support portion bottom is dismantled
Fall, then bowl-type workpiece and bowl-type slot touching position are admitted air by the position of mobile second screw, then opens the first screw
And trim ring, to card, she takes out the bowl-type workpiece processed.
It is the preferred embodiment of the utility model above, does not impose any limitation on the present invention,
Every foundation the technical essence of the utility model any simple modification, equivalent change and modification made to the above embodiment,
Belong in the range of utility model technical solution.
Claims (8)
1. a kind of bowl-type thin-walled parts vacuum fixture, which is characterized in that it includes bowl-type workpiece, is used to support the branch of bowl-type workpiece
Support part, the trim ring for fixing bowl-type workpiece top the rim of a bowl position and the vacuumizing assembly for making bowl-type workpiece keep vacuum state,
It is provided among the support portion and is placed on the bowl-type slot of support portion with the matched bowl-type slot of bowl-type workpiece, the bowl-type workpiece
Interior, the bowl-type trench bottom is provided with air hole, and the air hole lower section is corresponding to be provided with vacuumizing assembly, and the trim ring is set
It sets and is used to fix bowl-type workpiece at the top of support portion, be attached by the first screw between the trim ring and support portion, it is described
Position is provided with the first sealing ring among bowl-type slot circumference.
2. a kind of bowl-type thin-walled parts vacuum fixture according to claim 1, which is characterized in that right below the air hole
It should be provided with the vacuum tank for placing vacuumizing assembly, the vacuumizing assembly includes exhaust tube, piston and the second screw, institute
Exhaust tube is stated for being connected to air hole and vacuum tank, the piston is arranged inside vacuum tank, and the internal piston is fixed with the
Two screws, second screw can be moved left and right with piston in vacuum tank.
3. a kind of bowl-type thin-walled parts vacuum fixture according to claim 1, which is characterized in that the air hole and ventilative
The vacuumizing assembly being arranged below hole is provided with 6 groups altogether.
4. a kind of bowl-type thin-walled parts vacuum fixture according to claim 2, which is characterized in that the second screw is being arranged
Support portion periphery is provided with the spacing ring for protecting the second screw, and the spacing ring is arranged in support portion bottom and passes through
Third screw is attached.
5. a kind of bowl-type thin-walled parts vacuum fixture according to claim 2, which is characterized in that setting below the piston
There is locating slot, the guide positioning pin for being positioned to piston, the guide positioning pin lower section are provided in the locating slot
It is fixed below support portion.
6. a kind of bowl-type thin-walled parts vacuum fixture according to claim 2, which is characterized in that the piston nose circumference
Outside is provided with the second sealing ring.
7. a kind of bowl-type thin-walled parts vacuum fixture according to claim 2, which is characterized in that second screw and work
Gap connection is carried out between plug.
8. a kind of bowl-type thin-walled parts vacuum fixture according to claim 6, which is characterized in that second sealing ring is total
There are two settings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820237915.8U CN208051385U (en) | 2018-02-10 | 2018-02-10 | A kind of bowl-type thin-walled parts vacuum fixture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820237915.8U CN208051385U (en) | 2018-02-10 | 2018-02-10 | A kind of bowl-type thin-walled parts vacuum fixture |
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| Publication Number | Publication Date |
|---|---|
| CN208051385U true CN208051385U (en) | 2018-11-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820237915.8U Active CN208051385U (en) | 2018-02-10 | 2018-02-10 | A kind of bowl-type thin-walled parts vacuum fixture |
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| CN (1) | CN208051385U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108145464A (en) * | 2018-02-10 | 2018-06-12 | 无锡微研中佳精机科技有限公司 | A kind of bowl-type thin-walled parts vacuum fixture |
-
2018
- 2018-02-10 CN CN201820237915.8U patent/CN208051385U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108145464A (en) * | 2018-02-10 | 2018-06-12 | 无锡微研中佳精机科技有限公司 | A kind of bowl-type thin-walled parts vacuum fixture |
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