CN110103165A - A kind of bellows leakproof liquid plastic fixture - Google Patents
A kind of bellows leakproof liquid plastic fixture Download PDFInfo
- Publication number
- CN110103165A CN110103165A CN201910509071.7A CN201910509071A CN110103165A CN 110103165 A CN110103165 A CN 110103165A CN 201910509071 A CN201910509071 A CN 201910509071A CN 110103165 A CN110103165 A CN 110103165A
- Authority
- CN
- China
- Prior art keywords
- fixture
- bellows
- cylinder
- forcing screw
- liquid plastics
- 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
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B11/00—Work holders not covered by any preceding group in the subclass, e.g. magnetic work holders, vacuum work holders
Abstract
A kind of bellows leakproof liquid plastic fixture, belong to mechanical field of general technology, it is made of in structure fixed underpan, clamping fixture seat, fixture cylinder, fixture cover, forcing screw, fixing screws, liquid plastics, bellows connection, structure novel, when the inside precession of forcing screw, bellows axial elongation is pushed, the bellows after becoming larger squeezes intracavitary liquid plastics to the barrel of fixture cylinder；Since the forcing screw diameter in bellows is identical as the diameter of pipe, bellows has withstood the extruding of liquid plastics by the support of screw radially；Bellows after welding can effectively prevent liquid plastics from oozing out along the gap between forcing screw and fixture cylinder, fixture cover；Volume reducing intracavitary later, the characteristics of according to the Incoercibility of liquid plastics and uniformly transferring pressure, by the pressure that plastics pass over corresponding deformation will be occurred for the barrel of fixture cylinder, to generate biggish clamping force, complete higher position precision and positioning requirements.
Description
Technical field
The invention belongs to mechanical field of general technology, are related to a kind of fixture, and bellows leakproof is housed more particularly to one kind
Liquid plastic fixture.
Background technique
Currently, the characteristics of liquid plastic fixture is the Incoercibility using liquid plastics and can be used as transfer medium, leads to
The extruding transmitting pressure to plastics is crossed to the barrel of fixture cylinder, is clamped by the deformation of barrel and is positioned workpiece, have very high
Service efficiency；However, it is exactly to be easy leakage that liquid plastics, which also have an apparent defect, as long as existing between screw and screw thread
Gap and relatively move be possible to occur liquid plastics leakage, moreover at work liquid plastics also by the pressure increased
It influences, even more exacerbates this case；The result that the leakage of liquid plastics directly results in cannot exactly transmit enough pressure and arrive
The barrel of fixture cylinder, therefore the workpiece processed would not reach corresponding form accuracy, position precision and coaxial accuracy.
Summary of the invention
The purpose of the present invention is in view of the above-mentioned deficiencies in the prior art, propose a kind of bellows leakproof fluidity
Plastic clamp, structure is simpler, and seepage capability is strong and barrel is slighter to the clamping force of processing part, will not be to sleeve type workpiece
Generate excessive pressure, it is most important that after assembling bellows on screw, it is possible to reduce or even prevent liquid plastics from oozing out, meet
The pressure maintaining ability of liquid plastics makes the workpiece of processing reach higher concentricity required precision.
The technical scheme is that a kind of bellows leakproof liquid plastic fixture, it is characterised in that: the fixture is by solid
Determine chassis, clamping fixture seat, fixture cylinder, fixture cover, forcing screw, fixing screws, liquid plastics, bellows connection composition；It is described
Clamping fixture seat is fixedly connected on the chassis, is connected and fixed between the clamping fixture seat and fixed underpan by fixing screws, described
The welding of fixture cylinder is arranged on the clamping fixture seat, and the end of fixture cylinder, fixture cover center is arranged in the fixture cover
Equipped with forcing screw, the forcing screw is equipped with bellows, and the root of the bellows is connected and fixed with the fixture cover,
Liquid plastics are equipped in the cavity that the inner wall of the fixture cylinder and the outer wall of bellows are formed, by rotary presser screw to fluidity
Plastics pressurize, while cavity wall inside fixture cylinder being made to generate pressure, corresponding deformation are brought it about, thus to being nested in fixture
The processing part of drum outer wall, which is formed, clamps positioning.
The bottom diameter of the bellows is greater than 1~3mm of major diameter of thread of forcing screw, when bellows is by forcing screw
Thrust when extending forward, radially by the extruding from liquid plastics, forcing screw can form effective support to bellows,
Reduce bellows radial deformation.
Root and fixture cover is welded and fixed in the bellows, to prevent liquid plastics from forcing screw and fixture cover
Between gap overflow.
The fixture cylinder and fixture cover are fixed by being welded to connect, to obtain preferable sealing performance and liquid between the two
The pressurization of body plastics.
The invention has the benefit that a kind of bellows leakproof liquid plastic fixture provided by the invention, by solid in structure
Determine chassis, clamping fixture seat, fixture cylinder, fixture cover, forcing screw, fixing screws, liquid plastics, bellows connection composition, structure
Novelty pushes bellows axial elongation when the inside precession of forcing screw, bellows after becoming larger by intracavitary liquid plastics to
The barrel of fixture cylinder squeezes；Since the forcing screw diameter in bellows is identical as the diameter of pipe, bellows relies on screw
Support withstood the extruding of liquid plastics radially；Bellows after welding can effectively prevent liquid plastics along
Gap exudation between forcing screw and fixture cylinder, fixture cover；Volume reducing intracavitary later, according to liquid plastics can not
Corresponding become will occur for compressibility and the characteristics of uniformly transferring pressure, the pressure that the barrel of fixture cylinder is passed over by plastics
Shape completes higher position precision and positioning requirements to generate biggish clamping force.
Detailed description of the invention
Fig. 1 is external structure schematic diagram of the present invention.
Fig. 2 is complete section structural schematic diagram of the present invention.
Fig. 3 is cutting state structural schematic diagram of the present invention.
In figure: fixed underpan 1, clamping fixture seat 2, fixture cylinder 3, fixture cover 4, forcing screw 5, fixing screws 6, hydraulic plastics
7, bellows 8, cutting tool 9, processing part 10.
Specific embodiment
The present invention will be further explained below with reference to the attached drawings:
As shown in Figure 1-3, a kind of bellows leakproof liquid plastic fixture, fixture is by fixed underpan 1, clamping fixture seat 2, fixture cylinder 3, folder
Have cover 4, forcing screw 5, fixing screws 6, liquid plastics 7, the connection composition of bellows 8；Clamping fixture seat 2 is fixedly connected on chassis 1
On, it is connected and fixed between the clamping fixture seat 2 and fixed underpan 1 by fixing screws 6, the welding of fixture cylinder 3 is arranged in clamping fixture seat 2
On, the end of fixture cylinder 3 is arranged in fixture cover 4, and 4 center of fixture cover is equipped with forcing screw 5, and forcing screw 5 is equipped with wave
Line pipe 8, root and the fixture cover 4 of bellows 8 are connected and fixed, the cavity that the inner wall of fixture cylinder 3 and the outer wall of bellows 8 are formed
It is interior to be equipped with liquid plastics 7, it is pressurizeed by rotary presser screw 5 to liquid plastics 7, while produce 3 inside cavity wall of fixture cylinder
Raw pressure, brings it about corresponding deformation, clamps positioning to be formed to the processing part 10 being nested in 3 outer wall of fixture cylinder.
As shown in Figure 1-3, a kind of bellows leakproof liquid plastic fixture, the bottom diameter of bellows 8 is greater than forcing screw 5
1~3mm of major diameter of thread, when bellows 8 is extended forward by the thrust of forcing screw 5, radially by from fluidity mould
The extruding of material 7, forcing screw 5 can form effective support to bellows 8, reduce 8 radial deformation of bellows；Bellows 8 is to root
It is welded and fixed with fixture cover 4, to prevent gap of the liquid plastics 7 between forcing screw 5 and fixture cover 4 from overflowing；Folder
Have cylinder 3 and fixture cover 4 to fix by being welded to connect, to obtain the pressurization of preferable sealing performance and liquid plastics between the two
Effect.
As shown in Figure 1-3, a kind of working principle of bellows leakproof liquid plastic fixture is as follows: filling wave on forcing screw
Line pipe, and be welded on fixture cover, pressure is generated by chamber inner sidewall of the flowing of liquid plastics to fixture cylinder later, makes it
Corresponding deformation occurs, clamps positioning action to generate to the part that will be processed.Concrete mode is: when forcing screw is inside
When precession, bellows axial elongation is pushed, deformed bellows is by the inner wall of liquid plastics extrusion clamp cylinder；According to the double of power
Tropism, radially, liquid plastics equally have squeezing action to bellows；But, the inner wall of bellows and forcing screw is outer
Diameter size is identical, and forcing screw counteracts the external force that bellows is subject to the support force of bellows.Barrel is moulded by fluidity later
The pressure of material deforms, to can generate biggish clamping force to part, meets the processing of workpiece, reaches position precision and same
The requirement of axis degree precision.When forcing screw screws out, bellows retreats screw with screw, therefore can generate axial shrinkage；Chamber
Internal volume becomes larger, by the control of pressure current, liquid plastics reflux；By the cylinder that liquid plastics pressure before becomes larger and is deformed
Wall construction restores to the original state, and reduces to the clamping force of workpiece, convenient for taking out part.The main connection type of bellows and fixture cover
For welding, due to it is intracavitary be liquid plastics, easily leaked by gap between forcing screw and fixture cover, and pass through
With the welding between bellows and fixture cover, liquid plastics can be effectively prevent to escape between the gap of the two.In addition by fixture
Cylinder and clamping fixture seat ensure that fixture cylinder is preferably fixed on clamping fixture seat by electric welding connection, also ensure that liquid plastics for a long time
Use.
Claims (4)
1. a kind of bellows leakproof liquid plastic fixture, it is characterised in that: the fixture by fixed underpan (1), clamping fixture seat (2),
Fixture cylinder (3), fixture cover (4), forcing screw (5), fixing screws (6), liquid plastics (7), bellows (8) connection composition；
The clamping fixture seat (2) is fixedly connected on the chassis (1), passes through fixed spiral shell between the clamping fixture seat (2) and fixed underpan (1)
Nail (6) is connected and fixed, and fixture cylinder (3) welding is arranged on the clamping fixture seat (2), and fixture cover (4) setting is being pressed from both sides
Has the end of cylinder (3), fixture cover (4) center is equipped with forcing screw (5), and the forcing screw (5) is equipped with bellows
(8), the root of the bellows (8) is connected and fixed with the fixture cover (4), the inner wall and bellows of the fixture cylinder (3)
(8) liquid plastics (7) are equipped in the cavity that outer wall is formed, liquid plastics (7) are added by rotary presser screw (5)
Pressure, while the internal cavity wall of fixture cylinder (3) being made to generate pressure, brings it about corresponding deformation, thus to be nested with fixture cylinder (3) outside
The processing part (10) of wall, which is formed, clamps positioning.
2. a kind of bellows leakproof liquid plastic fixture according to claim 1, it is characterised in that: the bellows (8)
Bottom diameter be greater than forcing screw (5) 1~3mm of major diameter of thread, when bellows (8) by forcing screw (5) thrust to
When preceding elongation, radially by the extruding for coming from liquid plastics (7), forcing screw (5) can form effectively branch to bellows (8)
Support reduces bellows (8) radial deformation.
3. a kind of bellows leakproof liquid plastic fixture according to claim 1, it is characterised in that: the bellows (8)
Root and fixture cover (4) are welded and fixed, to prevent liquid plastics (7) between forcing screw (5) and fixture cover (4)
It overflows gap.
4. a kind of bellows leakproof liquid plastic fixture according to claim 1, it is characterised in that: the fixture cylinder (3)
It is fixed with fixture cover (4) by being welded to connect, is made with obtaining the pressurization of preferable sealing performance and liquid plastics between the two
With.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910509071.7A CN110103165A (en) | 2019-06-13 | 2019-06-13 | A kind of bellows leakproof liquid plastic fixture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910509071.7A CN110103165A (en) | 2019-06-13 | 2019-06-13 | A kind of bellows leakproof liquid plastic fixture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110103165A true CN110103165A (en) | 2019-08-09 |
Family
ID=67494827
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910509071.7A Pending CN110103165A (en) | 2019-06-13 | 2019-06-13 | A kind of bellows leakproof liquid plastic fixture |
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| CN (1) | CN110103165A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87214884U (en) * | 1987-11-03 | 1988-12-07 | 兆文清 | To-and-fro pump rod following and sealing device |
| JPH09239743A (en) * | 1996-03-13 | 1997-09-16 | Tokai Rubber Ind Ltd | Jig and method for demolding bent bellows hose |
| US7175406B1 (en) * | 2003-03-21 | 2007-02-13 | Prd Company, Inc. | Active mold apparatus |
| CN102328220A (en) * | 2011-07-11 | 2012-01-25 | 沈文伟 | Fluidity plastic thin-wall sleeve fixture |
| CN104384969A (en) * | 2014-11-30 | 2015-03-04 | 重庆斯凯迪轴瓦有限公司 | Internal elastic clamping mechanism |
| CN210282006U (en) * | 2019-06-13 | 2020-04-10 | 扬州大学 | Bellows leak protection liquid plastics anchor clamps |
-
2019
- 2019-06-13 CN CN201910509071.7A patent/CN110103165A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87214884U (en) * | 1987-11-03 | 1988-12-07 | 兆文清 | To-and-fro pump rod following and sealing device |
| JPH09239743A (en) * | 1996-03-13 | 1997-09-16 | Tokai Rubber Ind Ltd | Jig and method for demolding bent bellows hose |
| US7175406B1 (en) * | 2003-03-21 | 2007-02-13 | Prd Company, Inc. | Active mold apparatus |
| CN102328220A (en) * | 2011-07-11 | 2012-01-25 | 沈文伟 | Fluidity plastic thin-wall sleeve fixture |
| CN104384969A (en) * | 2014-11-30 | 2015-03-04 | 重庆斯凯迪轴瓦有限公司 | Internal elastic clamping mechanism |
| CN210282006U (en) * | 2019-06-13 | 2020-04-10 | 扬州大学 | Bellows leak protection liquid plastics anchor clamps |
Non-Patent Citations (2)
| Title |
|---|
| 侯军燕;胡迎春;胡裔志;: "液性塑料定心夹具的结构优化设计", 机械设计与制造, no. 07 * |
| 姚春东;赵克亮;任彦朝;白斌;张万胜;: "往复式抽油杆扶正器摩擦磨损试验装置设计", 石油机械, no. 10 * |
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