CN204061652U - Hydraulic clamp - Google Patents
Hydraulic clamp Download PDFInfo
- Publication number
- CN204061652U CN204061652U CN201420357023.3U CN201420357023U CN204061652U CN 204061652 U CN204061652 U CN 204061652U CN 201420357023 U CN201420357023 U CN 201420357023U CN 204061652 U CN204061652 U CN 204061652U
- Authority
- CN
- China
- Prior art keywords
- cylinder body
- piston
- cylinder
- cylinder barrel
- pressing plate
- 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.)
- Expired - Lifetime
Links
- 239000000945 filler Substances 0.000 claims abstract description 11
- 238000009434 installation Methods 0.000 abstract description 5
- 238000006243 chemical reaction Methods 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 239000003921 oil Substances 0.000 description 19
- 238000007789 sealing Methods 0.000 description 8
- 230000000694 effects Effects 0.000 description 6
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000005611 electricity Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000012224 working solution Substances 0.000 description 1
Landscapes
- Clamps And Clips (AREA)
Abstract
The utility model discloses a kind of hydraulic clamp, comprise cylinder body, piston and pressing plate, cylinder body is groove type, cylinder body groove both sides are provided with front end cylinder barrel and rear end cylinder barrel, and communicated by the oil transportation aperture in cylinder body, oil transportation aperture communicates with the filler opening of cylinder body, and front end cylinder barrel and rear end cylinder barrel are all equipped with piston, and piston connects pressing plate.Hydraulic clamp, cylinder body bottom portion of groove is equipped with resetting means, and resetting means comprises butterfly spring, jacking block and guide rod, and butterfly spring is enclosed within guide rod both sides, and the new spring at front end of dish connects jacking block.The utility model has following beneficial effect: by two single-action hydraulic cylinder tank designs are become an entirety, namely the boundary dimension of cylinder body is reduced, save installing space, enable the reaction force produced during two one-way cylinder work cancel out each other simultaneously, make motion slide unit not occur unbalance loading by the impact of clamping force with coordinating between slide guide, ensure that their installation precision; The bodily form is little, and structure is simple, and Installation and Debugging are convenient, and cost is low; Working stability is high, applied widely.
Description
Technical field
The present invention relates to a kind of hydraulic clamp of Four-axis NC Welding milling machine pivot angle slide unit, be mainly applicable to the clamping between motion slide unit in each coordinate axes of numerical control machine tool and slide guide.
Background technique
In each coordinate axes of numerical control machine tool adopting slide guide guiding, always there are parts to do relative motion with slide guide, now these parts are called moving element, when this heavy moving parts is comparatively large or movement velocity is larger, because its inertia is very large, it becomes state of rest from motion state needs very large braking force, in the prior art, provides this braking force to mainly contain two kinds of modes:
at the axle head of motor, a clutch is installed, carrys out solenoidoperated cluthes holding tightly motor shaft by electricity or hydraulic pressure, produce braking force thus, more progressively transmitted by gear, indirectly moving element and slide guide are clamped;
moving element installs a double-action hydraulic thick stick clamp device, directly clamps slide guide by the flexible of piston in oil hydraulic cylinder, produce braking force thus, directly moving element and slide guide are clamped.But these two kinds of modes have some limitations in the middle of practice, mode
in braking force indirectly progressively need be transmitted by gear, when there is gap in gear, clamping and positioning can produce error; Mode
in employ double-action hydraulic thick stick, and need the installing space that is necessary between moving element and slide guide when designing double-acting hydraulic cylinder, when this installing space is restricted, this mode implements can be very difficult.
Summary of the invention
The present invention is directed to above-mentioned prior art Problems existing, a kind of hydraulic clamp of motion slide unit is provided, be specially adapted to the clamping between the restricted motion slide unit of installing space and slide guide.
The technical solution adopted for the present invention to solve the technical problems is:
Hydraulic clamp, comprises cylinder body, piston and pressing plate, and cylinder body is groove type, cylinder body groove both sides are provided with front end cylinder barrel and rear end cylinder barrel, and are communicated by the oil transportation aperture in cylinder body, and oil transportation aperture communicates with the filler opening of cylinder body, front end cylinder barrel and rear end cylinder barrel are all equipped with piston, and piston connects pressing plate.
Hydraulic clamp, cylinder body bottom portion of groove is equipped with resetting means, and resetting means comprises butterfly spring, jacking block and guide rod, and butterfly spring is enclosed within guide rod both sides, and the new spring at front end of dish connects jacking block.
Cylinder body is critical piece of the present invention, inside is provided with front end cylinder barrel and rear end cylinder barrel, by inner oil transportation aperture, front end and back end cylinder barrel is connected again, the oil transportation aperture hydraulic fluid port that all follows up communicates, this cylinder body is just equivalent to two single-action hydraulic cylinder cylinder bodies in fact, is designed to an overall benefit and is:
the reaction force produced during two one-way cylinder work can be cancelled out each other, and makes pivot angle slide unit not occur unbalance loading by the impact of clamping force with coordinating between slide guide, ensure that their installation precision;
reduce cylinder body boundary dimension, save installing space.
Pressing plate, piston, sealing baffle constitutes working piston, two pieces altogether, be arranged in the front end and back end cylinder barrel on cylinder body respectively, seal ring is provided with between piston and sealing baffle, play seal oil chamber effect, piston and sealing baffle also play leading role simultaneously, working piston can slide by the little stroke in front and back in cylinder barrel, the hydraulic clamp of motion slide unit is under clamping work shape, working solution force feed enters front end and back end oil pocket by filler opening, pushing working piston slides to the direction of middle slip guide rail, slide guide is clamped before and after pressing plate on two working pistons, hydraulic coupling is converted into clamping force the most at last,
Butterfly spring, jacking block and guide rod constitute the resetting means of working piston, they are arranged in the middle of cylinder body by mounting blocks, when current back end oil pocket is connected with leakage passage, because the oil pressure in the oil pocket of front end and back end is very little, the original extrusion of belleville spring produces spring force, this spring force promotes jacking block, and jacking block pushes working piston return again, and the last and slide guide of the pressing plate on working piston unclamps.
The working piston of pressing plate, piston, sealing baffle composition is arranged on before and after cylinder body in cylinder barrel, symmetrical, and the resetting means of belleville spring, guide rod, jacking block composition is arranged in the middle of cylinder body.Its center platen, piston, sealing baffle and cylinder body achieve effect hydraulic coupling being converted to clamping force, namely achieve the effect of pressing plate with slide guide clamping, belleville spring, guide rod, jacking block serve the effect of working piston return, namely achieve the effect of being unclamped with slide guide by pressing plate.
Apparatus of the present invention, as a kind of motion slide unit hydraulic clamp, are not only applicable to the clamping of pivot angle slide unit, are also applicable to the clamping of motion slide unit on other rectilinear coordinates axles of numerical control machine tool;
The present invention has following beneficial effect:
By two single-action hydraulic cylinder tank designs are become an entirety, namely the boundary dimension of cylinder body is reduced, save installing space, enable the reaction force produced during two one-way cylinder work cancel out each other simultaneously, make motion slide unit not occur unbalance loading by the impact of clamping force with coordinating between slide guide, ensure that their installation precision; The bodily form is little, and structure is simple, and Installation and Debugging are convenient, and cost is low; Working stability is high, applied widely.
Accompanying drawing explanation
Concrete structure of the present invention is further described by embodiment with reference to the accompanying drawings.
Fig. 1 is mounting point figure of the present invention.
Fig. 2 is that the present invention is unclamping the cut-away view under operating mode.
Fig. 3 is the cut-away view of the present invention under clamping operating mode.
In figure: 1. cylinder body, 2. pressing plate, 3. piston, 4. sealing baffle, 5. cylinder end caps, 6. mounting blocks, 7. belleville spring, 8. guide rod, 9. jacking block, 10. filler opening, the 11. little oilholes in front end, 12. front end cylinder barrels, the 13. little oilholes in rear end, 14. rear end cylinder barrels, 15. slide guides, 16. connecting bases, 17. pivot angle slide units, 18. pivot angle tooth bars, 19. Z axis slide units.
Embodiment
Below by an embodiment, and by reference to the accompanying drawings, the present invention is set forth.
Consult Fig. 1, hydraulic clamp, comprise cylinder body 1, piston 3 and pressing plate 2, cylinder body 1 is groove type, and cylinder body groove both sides are provided with front end cylinder barrel 12 and rear end cylinder barrel 14, and is communicated by the oil transportation aperture in cylinder body 1, oil transportation aperture communicates with the filler opening 10 of cylinder body, front end cylinder barrel 12 and rear end cylinder barrel 14 are all equipped with piston 3, and piston 3 connects pressing plate 2, are cylinder end caps 5 outside cylinder body groove.
Pressing plate 2, piston 3, sealing baffle 4 constitute working piston, and two pieces, is arranged on respectively in the front end and back end cylinder barrel on cylinder body 1, is provided with seal ring between piston 3 and sealing baffle 4, play seal oil chamber effect altogether.
Butterfly spring 7, jacking block 9 and guide rod 8 constitute the resetting means of working piston, and they are arranged in the middle of cylinder body groove by mounting blocks 6.
Consult Fig. 2, Fig. 3, slide guide 15 is arc, and it is fixed on Z axis slide unit 19, and they can look at is actionless, and pivot angle tooth bar 18 is fixed on pivot angle slide unit 17, and they are together relative to slide guide 15 arc sliding.Now be fixed on pivot angle slide unit 17 by apparatus of the present invention by connecting base 16, the filler opening 10 on cylinder body 1 is connected with oil pipe, when filler opening 10 is communicated with pressure release oil circuit, under the present invention is in and unclamps operating mode; When filler opening 10 is communicated with working oil path, hydraulic oil is by filler opening 10, through front end, little oilhole 11, the little oilhole 13 in rear end enter front end cylinder barrel 12, rear end cylinder barrel 14 respectively again, then push working piston to slide to the direction of middle slip guide rail 15, slide guide 15 is clamped before and after pressing plate 2 on two working pistons, now, under the present invention is in clamping operating mode; When filler opening 10 switch to again be communicated with pressure release oil circuit time, because the oil pressure in the oil pocket of front end and back end is very little, the original extrusion of belleville spring 7 produces spring force, this spring force promotes jacking block 9, jacking block 9 pushes working piston return again, last and the slide guide 15 of pressing plate 2 on working piston unclamps, under now the present invention is in again and unclamps operating mode.Logical mainly with upper implementation step, present invention achieves the function that pivot angle slide unit 17 and slide guide 15 are clamped or unclamped.
Claims (2)
1. hydraulic clamp, comprise cylinder body, piston and pressing plate, it is characterized in that, cylinder body is groove type, cylinder body groove both sides are provided with front end cylinder barrel and rear end cylinder barrel, and are communicated by the oil transportation aperture in cylinder body, and oil transportation aperture communicates with the filler opening of cylinder body, front end cylinder barrel and rear end cylinder barrel are all equipped with piston, and piston connects pressing plate.
2. hydraulic clamp according to claim 1, is characterized in that, cylinder body bottom portion of groove is equipped with resetting means, and resetting means comprises butterfly spring, jacking block and guide rod, and butterfly spring is enclosed within guide rod both sides, and the new spring at front end of dish connects jacking block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420357023.3U CN204061652U (en) | 2014-07-01 | 2014-07-01 | Hydraulic clamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420357023.3U CN204061652U (en) | 2014-07-01 | 2014-07-01 | Hydraulic clamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204061652U true CN204061652U (en) | 2014-12-31 |
Family
ID=52203174
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420357023.3U Expired - Lifetime CN204061652U (en) | 2014-07-01 | 2014-07-01 | Hydraulic clamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204061652U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104088927A (en) * | 2014-07-01 | 2014-10-08 | 成都飞机工业（集团）有限责任公司 | Hydraulic clamping device |
-
2014
- 2014-07-01 CN CN201420357023.3U patent/CN204061652U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104088927A (en) * | 2014-07-01 | 2014-10-08 | 成都飞机工业（集团）有限责任公司 | Hydraulic clamping device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202239954U (en) | Automatic hydraulic double-end chamfering machine | |
| CN101272878B (en) | Synchronized clamping chuck for machine tool | |
| CN104088927A (en) | Hydraulic clamping device | |
| CN204061652U (en) | Hydraulic clamp | |
| CN204019221U (en) | Flexibility linear array type Chain Link more than one piece boring grab | |
| CN105904238A (en) | Four-station and four-section quick hydraulic clamp | |
| CN202804225U (en) | Vertical air-hydraulic dual-purpose chuck | |
| CN202861420U (en) | Machine tool tail bracket | |
| CN210755418U (en) | Milling groove device for knuckle fork of automobile steering device | |
| CN204398358U (en) | A kind of four-column type Universal hydraulic press | |
| CN208132418U (en) | A kind of Boring Machine Tool fixture positioning pushing device | |
| CN206316952U (en) | A kind of Hydraulic Clamping Mechanism | |
| CN102927079A (en) | Stroke adjustable oil cylinder | |
| CN204747554U (en) | Built -in air chuck | |
| CN205668157U (en) | A kind of four station four tangent plane fast hydraulic pressure fixtures | |
| CN205703384U (en) | There is the work platforms of many grasping systems | |
| CN201862788U (en) | Hybrid drive tailstock device | |
| CN102909584B (en) | Movable vice body clamping tool for bench vices | |
| CN104696306A (en) | Mechanical follow-up oil cylinder assembly | |
| CN103231086A (en) | Oil gun machining clamp | |
| CN105757051A (en) | Plug-in type hydraulic lock | |
| CN202894384U (en) | Bi-direction pressure maintaining front-mounted type pneumatic chuck | |
| CN202317096U (en) | Hydraulic floating chuck | |
| CN206425858U (en) | A kind of direct-pulling type hydraulically operated fixture | |
| CN206356959U (en) | A kind of body hinge mounting hole drilling-hole positioning device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20141231 |
|
| CX01 | Expiry of patent term |