CN102658488B - Manual hydraulic fixture - Google Patents
Manual hydraulic fixture Download PDFInfo
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- CN102658488B CN102658488B CN201210145310.3A CN201210145310A CN102658488B CN 102658488 B CN102658488 B CN 102658488B CN 201210145310 A CN201210145310 A CN 201210145310A CN 102658488 B CN102658488 B CN 102658488B
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- 239000007788 liquid Substances 0.000 claims abstract description 21
- 206010008469 Chest discomfort Diseases 0.000 claims description 17
- 238000007789 sealing Methods 0.000 claims description 7
- 239000012530 fluid Substances 0.000 claims description 6
- 238000012856 packing Methods 0.000 claims description 3
- 238000005265 energy consumption Methods 0.000 abstract description 5
- 238000006243 chemical reaction Methods 0.000 abstract description 2
- 238000003754 machining Methods 0.000 abstract 1
- 230000000149 penetrating effect Effects 0.000 abstract 1
- 101000793686 Homo sapiens Azurocidin Proteins 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 238000013459 approach Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 241001640034 Heteropterys Species 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000002706 hydrostatic effect Effects 0.000 description 1
- 230000033001 locomotion Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
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Abstract
The invention relates to a hydraulic fixture in the machining industry, in particular to a manual hydraulic fixture. The manual hydraulic fixture comprises an execution fixture connected to a working cylinder; a hydraulic cavity of the working cylinder is communicated with a hydraulic generator through a hydraulic pipe; the hydraulic generator comprises a big cylinder body, an end cover and a big piston in an inner cavity of the big cylinder body; the inner cavity of the big cylinder is divided into two cavities by the big piston; the two cavities are both communicated with a liquid storage cavity on a liquid storage tank; a small cylinder body is arranged in one of the two cavities; a big piston spring for resetting the big piston is sleeved outside the small cylinder body; a small piston is arranged in an inner cavity of the small cylinder body; the high-pressure cavity and the low-pressure cavity are communicated through a high/low-pressure conversion valve; a slider penetrating through the end cover is arranged on the end cover; one end of the slider is connected with one end of a connecting rod; the other end of the connecting rod is connected with a crank; and the crank is connected with a handle. The manual hydraulic fixture provided by the invention has the advantages of simple structure, low energy consumption, no noise and low using cost.
Description
Technical field
The present invention relates to the hydraulically operated fixture in mechanical industry, specifically a kind of simple in structure, energy consumption is low, noiseless and the low hand-hydraulic fixture of use cost.
Technical background
The hydraulically operated fixture of prior art, be generally electricity consumption as power, by electric hydraulic pump, produce hydraulic pressure, the hydraulic cylinder on hydraulically operated fixture is double acting cylinder, unclamps and clamps by control hydraulicdirectional control valve to complete.This hydraulically operated fixture of prior art, in use exists that use cost is high, noise is large, complex structure and the large shortcoming of power consumption.
Summary of the invention
The object of this invention is to provide a kind of simple in structure, energy consumption is low, noiseless and the low hand-hydraulic fixture of use cost.
For realizing the technical scheme that the object of the invention adopts, be: a kind of hand-hydraulic fixture, comprise the execution fixture being connected on working cylinder, the hydraulic cavities of working cylinder is communicated with hydraulic generator by hydraulic tube; Wherein: described hydraulic generator comprises large cylinder body, by end cap holding screw, be fixed on the end cap of large cylinder body one end, in the inner chamber of large cylinder body, be provided with large piston, large piston is divided into two chambeies by the inner chamber of large cylinder body, two chambeies are all communicated with the liquid storage cylinder on fluid reservoir, a chamber in two chambeies is low-pressure cavity, in low-pressure cavity, be provided with little cylinder body, little cylinder body overcoat is useful on the large piston spring of large piston reset, in the inner chamber of little cylinder body, be provided with valve piston, between valve piston and little cylinder body, be formed with high pressure chest, high pressure chest is communicated with hydraulic tube; Tapered section or high-low pressure switching valve by valve piston tail end between described high pressure chest and low-pressure cavity are realized the intercommunication between high pressure chest and low-pressure cavity; On end cap, be provided with the slide block through end cap, one end of slide block is against on large piston, and the other end of slide block is connected with connecting rod one end, and the other end of connecting rod is connected with crank, and crank is connected with handle.Described handle comprises the locking plate being arranged in handle body, and locking plate is arranged in the groove of Connection Block, and Connection Block is fixed on end cap, is stuck in the locking plate spring of locking plate below and the trip lever that is arranged on locking plate top.
Due to said structure, the present invention is simple in structure, energy consumption is low, noiseless and use cost low.
Accompanying drawing explanation
The non-limiting embodiment that device of the present invention can provide by accompanying drawing further illustrates.
Fig. 1 is the structural representation of embodiment of the present invention releasing orientation.
Fig. 2 is the structural representation of embodiment of the present invention clamped condition.
Fig. 3 be in Fig. 1 A-A to structural representation.
Fig. 4 is the structural representation of further embodiment of this invention releasing orientation.
Fig. 5 is the structural representation that Fig. 4 clamps clamped condition.
In figure: 1, hydraulic tube; 2, high pressure chest; 3, large piston spring; 4, pressure limiting valve; 5, pressure valve spring; 6, liquid storage cylinder; 7, valve piston spring; 8, little cylinder body; 9, valve piston; 10, high-low pressure switching valve spring; 11, small sealing ring; 12, high-low pressure switching valve; 13, backing pin; 14, large sealing packing ring; 15, fluid reservoir; 16, large cylinder body; 17, large piston; 18, make-up valve spring; 19, make-up valve; 20, end cap holding screw; 21, handle; 22, trip lever; 23, locking plate; 24, locking plate spring; 25, groove; 26, rotational pin; 27, crank; 28, Connection Block; 29, connecting rod; 30, adjusting rod; 31, locking nut; 32, slide block; 33, supporting base holding screw; 34, supporting base; 35, supporting base attachment screw; 36, lathe base; 37, end cap; 38, workbench; 39, workpiece; 40, low-pressure cavity; 41, working cylinder; 42, Pressure gauge.
The specific embodiment
Below in conjunction with drawings and Examples, the invention will be further described:
Referring to accompanying drawing 1,2,3,4 and 5, the hand-hydraulic fixture in accompanying drawing, comprises the execution fixture being connected on working cylinder 41, and the hydraulic cavities of working cylinder 41 is communicated with hydraulic generator by hydraulic tube 1, wherein: described hydraulic generator comprises large cylinder body 16, by end cap holding screw 20, be fixed on the end cap 37 of large cylinder body 16 one end, in the inner chamber of large cylinder body 16, be provided with large piston 17, large piston 17 is divided into two chambeies by the inner chamber of large cylinder body 16, two chambeies are all communicated with the liquid storage cylinder 6 on fluid reservoir 15, a chamber in two chambeies is low-pressure cavity 40, in low-pressure cavity 40, be provided with little cylinder body 8, little cylinder body 8 overcoats are useful on the large piston spring 3 that large piston 17 resets, in the inner chamber of little cylinder body 8, be provided with valve piston 9, between valve piston 9 and little cylinder body 8, be formed with high pressure chest 2, high pressure chest 2 is communicated with hydraulic tube 1, tapered section or high-low pressure switching valve 12 by valve piston 9 tail ends between described high pressure chest 2 and low-pressure cavity 40 are realized the intercommunication between high pressure chest 2 and low-pressure cavity 40, on end cap 37, be provided with the slide block 32 through end cap 37, one end of slide block 32 is against on large piston 17, and the other end of slide block 32 is connected with connecting rod 29 one end, and the other end of connecting rod 29 is connected with crank 27, and crank 27 is connected with handle 21.
For ease of practical operation, described in above-described embodiment, handle 21 comprises the locking plate 23 being arranged in handle body, locking plate 23 is arranged in the groove 25 of Connection Block 28, and Connection Block 28 is fixed on end cap 37, the trip lever 22 that is stuck in the locking plate spring 24 of locking plate 23 belows and is arranged on locking plate 23 tops.Described handle 21 is connected by rotational pin 26 with crank 27.
In said structure: described slide block 32 is connected by adjusting rod 30 with connecting rod 29.
For improving sealing, described in above-described embodiment large piston 17 with between cylinder body 16, be provided with large sealing packing ring 14 greatly, between little cylinder body 8 and valve piston 9, be provided with small sealing ring 11.
In said structure: be provided with the make-up valve 19 communicating with liquid storage cylinder 6 on described large piston 17, make-up valve 19 resets by make-up valve spring 18.
In said structure: described high-low pressure switching valve 12 resets by high-low pressure switching valve spring 10, realizes spacing by backing pin 13.
For ease of installing, on end cap 37, be fixed with that Connection Block 28, Connection Block 28 are fixing with supporting base 34 by supporting base holding screw 33, supporting base 34 is fixed on lathe base 36 by supporting base attachment screw 35 described in above-described embodiment.Described working cylinder 41 is fixed on workbench 38.
For the operating pressure of monitoring on hydraulic tube, on hydraulic tube 1, be provided with Pressure gauge 42 described in above-described embodiment.
For ease of low-pressure cavity 40 oil liquid pressures are controlled, low-pressure cavity 40 regulates fluid floies with liquid storage cylinder 6 by pressure limiting valve 4 described in above-described embodiment; Pressure limiting valve 4 resets by pressure valve spring 5.
The course of work referring to accompanying drawing 1,2 and 3 said structures is---clamps and builds pressure process: when pulling with hand handle 21, handle 21 drives crank 27 rotations, crank 27 promotes connecting rod 29, connecting rod 29 promotes slide block 32, slide block 32 promotes large piston 17 and moves forward, now make-up valve 19 is closed, low-pressure cavity 40 starts to build pressure, when large piston 17 travels forward, can produce low hydraulic pressure, this liquid flows into high pressure chest 2 by the high-low pressure switching valve 12 of now opening, then sends to working cylinder 41 by pipeline 1, by working cylinder 41, carries out pre-clamping work.Because large piston 17 diameters are large, the liquid producing can make the piston fast approaching workpiece 39 of working cylinder 41, now the piston of working cylinder 41 clamping work pieces 39 in advance.Large piston 17 moves forward after certain distance, large piston 17 promotes valve piston 9 motions again, when valve piston 9 moves forward, high-low pressure switching valve 12 leaves backing pin 13, under the effect of spring 10, high-low pressure switching valve 12 is closed, high pressure chest 2 and low-pressure cavity 40 are isolated (realizing hydraulic generator to the conversion between the low pressure in hydraulic loop and high pressure), and valve piston 9 continues to travel forward and produces the liquid of high hydraulic pressure, and the piston that working cylinder 41 stretches out is firmly clamped workpiece 39.Because large piston 17 is also travelling forward together with valve piston 9, the liquid of low-pressure cavity 40 can be progressively compressed simultaneously, and pressure increases, and when arriving setting value, just opens pressure limiting valve 4, makes the unnecessary liquid of low-pressure cavity 40 get back to liquid storage cylinder 6 by pressure limiting valve 4.
Pressurize process: when hydraulic pressure arrives setting, this setting can increase Pressure gauge 42 and show in pipeline 1, or record with hydrostatic sensor, crank 27 approaches a line with connecting rod 29, in dead-centre position, at this moment amplification ratio is maximum, and this position obtains by adjusting the degree of depth of adjusting rod 30 screw-in slide blocks 32.At this moment lock banking stop 23 slips in the groove 25 of Connection Block 28, and crank 27 and the rotation relation of Connection Block 28 are pinned, and prevents from touching handle 21 by mistake slide block 32 is return and pressure release.At this moment can processing work.In order to ensure lock banking stop 23, pinned crank 27, can when lock banking stop 23 slips in the groove 25 of Connection Block 28, trigger approach switch, provided a signal of telecommunication, equipment has obtained this signal and has automatically processed and could start.In process, in order to prevent that hydraulic pressure from declining, affect crudy, can in pipeline, increase pressure sensor, when pressure is during lower than allowable value, can send the signal of telecommunication and carry out sound and light alarm, can also send instruction to equipment, allow equipment automatically stop processing.
Said structure unclamps stress-relief process: workpiece 39 is processed complete after, lower trip lever 22 press...withes one's finger, make lock banking stop 23 skid off the groove of Connection Block 28, again handle 21 is pushed away forward, drive crank 27 toward back rotation, by connecting rod 29, slide block 32 is retracted, at this moment valve piston 9 hydraulic pressure and little spring 7 you with under shrink back, the liquid of working cylinder 41 flows back to high pressure chest 2, valve piston 9 is got back to behind position, backing pin 13 backs down high-low pressure switching valve 12, high-low pressure switching valve 12 is opened, liquid flows into low-pressure cavity 40 from high pressure chest 2, large piston 17 shrinks back under the effect of big spring 3, when large piston 17 returns to original position, make-up valve 19 is unlocked, liquid flows into liquid storage cylinder 6 by make-up valve 19 from low-pressure cavity 40, complete and unclamp stress-relief process.
In sum, this structure is simple in structure, energy consumption is low, noiseless and use cost low.
Claims (10)
1. a hand-hydraulic fixture, comprises the execution fixture being connected on working cylinder (41), and the hydraulic cavities of working cylinder (41) is communicated with hydraulic generator by hydraulic tube (1), it is characterized in that: described hydraulic generator comprises large cylinder body (16), by end cap holding screw (20), be fixed on the end cap (37) of large cylinder body (16) one end, in the inner chamber of large cylinder body (16), be provided with large piston (17), large piston (17) is divided into two chambeies by the inner chamber of large cylinder body (16), two chambeies are all communicated with the liquid storage cylinder (6) on fluid reservoir (15), a chamber in two chambeies is low-pressure cavity (40), in low-pressure cavity (40), be provided with little cylinder body (8), little cylinder body (8) overcoat is useful on the large piston spring (3) that large piston (17) resets, in the inner chamber of little cylinder body (8), be provided with valve piston (9), between valve piston (9) and little cylinder body (8), be formed with high pressure chest (2), high pressure chest (2) is communicated with hydraulic tube (1), tapered section or high-low pressure switching valve (12) by valve piston (9) tail end between described high pressure chest (2) and low-pressure cavity (40) are realized the intercommunication between high pressure chest (2) and low-pressure cavity (40), on end cap (37), be provided with the slide block (32) through end cap (37), one end of slide block (32) is against on large piston (17), the other end of slide block (32) is connected with connecting rod (29) one end, the other end of connecting rod (29) is connected with crank (27), and crank (27) is connected with handle (21).
2. hand-hydraulic fixture according to claim 1, it is characterized in that: described handle (21) comprises the locking plate (23) being arranged in handle body, locking plate (23) is arranged in the groove (25) of Connection Block (28), it is upper that Connection Block (28) is fixed on end cap (37), is stuck in the locking plate spring (24) of locking plate (23) below and the trip lever (22) that is arranged on locking plate (23) top.
3. hand-hydraulic fixture according to claim 1 and 2, is characterized in that: described handle (21) is connected by rotational pin (26) with crank (27).
4. hand-hydraulic fixture according to claim 1, is characterized in that: described slide block (32) is connected by adjusting rod (30) with connecting rod (29).
5. hand-hydraulic fixture according to claim 1, is characterized in that: between described large piston (17) and large cylinder body (16), be provided with large sealing packing ring (14), between little cylinder body (8) and valve piston (9), be provided with small sealing ring (11).
6. hand-hydraulic fixture according to claim 1 or 5, is characterized in that: on described large piston (17), be provided with the make-up valve (19) communicating with liquid storage cylinder (6), make-up valve (19) resets by make-up valve spring (18).
7. hand-hydraulic fixture according to claim 1, is characterized in that: described high-low pressure switching valve (12) resets by high-low pressure switching valve spring (10), by backing pin (13), realizes spacing.
8. hand-hydraulic fixture according to claim 1, is characterized in that: on described end cap (37), be fixed with that Connection Block (28), Connection Block (28) are fixing by supporting base holding screw (33) and supporting base (34), supporting base (34) is fixed on lathe base (36) by supporting base attachment screw (35).
9. hand-hydraulic fixture according to claim 1, is characterized in that: on described hydraulic tube (1), be provided with Pressure gauge (42).
10. hand-hydraulic fixture according to claim 1, is characterized in that: described low-pressure cavity (40) regulates fluid flow with liquid storage cylinder (6) by pressure limiting valve (4); Pressure limiting valve (4) resets by pressure valve spring (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210145310.3A CN102658488B (en) | 2012-05-11 | 2012-05-11 | Manual hydraulic fixture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210145310.3A CN102658488B (en) | 2012-05-11 | 2012-05-11 | Manual hydraulic fixture |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102658488A CN102658488A (en) | 2012-09-12 |
| CN102658488B true CN102658488B (en) | 2014-04-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210145310.3A Active CN102658488B (en) | 2012-05-11 | 2012-05-11 | Manual hydraulic fixture |
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| Country | Link |
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| CN (1) | CN102658488B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105014441B (en) * | 2014-04-24 | 2017-12-08 | 上海宏功机械科技有限公司 | A kind of chucking power observes direct and adjustable hydraulically operated fixture |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN86103915A (en) * | 1986-06-05 | 1987-01-31 | 陈汉保 | Hydraulic preserving device |
| CN101439476A (en) * | 2008-12-03 | 2009-05-27 | 苏州大学 | Clamping mechanism for chucking appliance system |
| CN201430369Y (en) * | 2009-07-09 | 2010-03-24 | 中国石油集团川庆钻探工程有限公司 | Hydraulic shearing device for petroleum logging perforation cable |
| CN202571891U (en) * | 2012-05-11 | 2012-12-05 | 刘力平 | Manual hydraulic clamp |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002187037A (en) * | 2000-12-18 | 2002-07-02 | Pascal Kk | Clamping device |
| JP4691808B2 (en) * | 2001-03-08 | 2011-06-01 | 株式会社アドヴィックス | Hydraulic brake device for vehicles |
| JP2003081081A (en) * | 2001-09-17 | 2003-03-19 | Aisin Seiki Co Ltd | Hydraulic brake system for vehicles |
-
2012
- 2012-05-11 CN CN201210145310.3A patent/CN102658488B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN86103915A (en) * | 1986-06-05 | 1987-01-31 | 陈汉保 | Hydraulic preserving device |
| CN101439476A (en) * | 2008-12-03 | 2009-05-27 | 苏州大学 | Clamping mechanism for chucking appliance system |
| CN201430369Y (en) * | 2009-07-09 | 2010-03-24 | 中国石油集团川庆钻探工程有限公司 | Hydraulic shearing device for petroleum logging perforation cable |
| CN202571891U (en) * | 2012-05-11 | 2012-12-05 | 刘力平 | Manual hydraulic clamp |
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| CN102658488A (en) | 2012-09-12 |
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