CN102825562A - High-strength self-locking telescopic hydraulic clamping device - Google Patents
High-strength self-locking telescopic hydraulic clamping device Download PDFInfo
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- CN102825562A CN102825562A CN2011101628048A CN201110162804A CN102825562A CN 102825562 A CN102825562 A CN 102825562A CN 2011101628048 A CN2011101628048 A CN 2011101628048A CN 201110162804 A CN201110162804 A CN 201110162804A CN 102825562 A CN102825562 A CN 102825562A
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- inclined wedge
- compact heap
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Abstract
The invention provides a self-locking hydraulic clamp capable of heavily cutting a workpiece or quickly replacing and clamping a mould, in particular a high-strength self-locking telescopic hydraulic clamping device. The high-strength self-locking telescopic hydraulic clamping device comprises a seat body, an oil cylinder, connecting rods, sliding blocks and inclined wedge blocks, wherein piston rods of the double ejection oil cylinder are connected with the front and rear connecting rods through pin shafts; the rear connecting rods are hinged onto the seat body; supporting springs are mounted in mounting holes of the seat body; supporting sliding blocks are pressed on the supporting springs; connecting springs are mounted in grooves of inclined wedge compacting blocks; projections of the inclined wedge sliding blocks compress the connecting springs to be mounted in the grooves of the inclined wedge compacting blocks; two inclined wedge blocks connected with each other are mounted in square sliding holes of the seat body and pressed on the supporting sliding blocks; and the front connecting rods are connected onto the inclined wedge sliding blocks. According to the invention, a symmetrical structure is adopted and an effect of synchronous compaction is achieved by double-ejection compacting heads; reinforcement can be increased by more than 1000 times through the two-time reinforcement by the connecting rods and the inclined wedge blocks. Self-locking effects of double machines, the inclined wedge blocks and the connecting rods are achieved and the clamping operation is stable and reliable. A self-locking clamping operation with compacting force of more than 100 tons can be performed.
Description
Technical field
The invention belongs to mechanical manufacturing field, relate to a kind of powerful clamping hydraulic binding clasp with auto-lock function.
Background technology
Along with the progress of industrial automatic technique, the hydraulic clamping system applied more and more.But in engineering practice, also having some problems, be mainly reflected in two aspects, is the pressurize problem on the one hand; Guarantee under the long-time heavy load condition that it is very difficult that hydraulic system does not definitely have leakage, often adopt the mode that installs accumulator additional for passive pressurize, but the suitable flexible member of accumulator; When load surpasses design load; Clamping system can produce and step down, and reduces to clamp rigidity and precision, and system does not have overload capacity.Be that clamping element is stressed unreasonable on the other hand, the piston rod of pivot angle clamping cylinder also receives moment of flexure except that receiving pulling force, its intensity and rigidity are had relatively high expectations; Lever oil cylinder is hinged will to receive above thrust of twice or the like.
Be the requirement of reduction system to pressurize, some self-locking oil cylinders are also arranged at present, but the bearing capacity that has be low, the self-locking oil circuit control that has is complicated.
The present invention intends the defective that overcomes existing hydraulic clamping device, realizes that brute force, self-locking, flexible and control are simple.
Summary of the invention
The object of the invention is to overcome the above-mentioned deficiency that exists in the prior art, and a kind of hydraulic clamp that can satisfy passive heavily loaded clamping is provided.
According to technical scheme provided by the invention, powerful self-locking concertina type hydraulic clamp is made up of pedestal, oil cylinder, connecting rod, slide block.Piston rod and front-rear linkage that Double Tops go out oil cylinder link together through bearing pin; Back link is hinged on pedestal; Support spring is installed in the installing hole of pedestal, and sliding support is pressed on the spring; Connect spring and be installed in the groove of oblique contract compact heap, tiltedly the protruding compression connection of contract slide block spring is installed in the groove of oblique contract compact heap, and two oblique contract pieces that connect together are installed in the square sliding eye of pedestal, are pressed on the support slipper; Front rod is connected on the oblique contract slide block.Mechanism adopts symmetrical structure.The unsettled installation of oil cylinder can be moved.
According to technical scheme provided by the invention, said oil cylinder has three oil inlet and outlets for the double-piston Double Tops go out the double action structure, and middle hydraulic fluid port oil-feed promotes two piston rod work, left and right sides hydraulic fluid port oil-feed, and piston rod resets.
According to technical scheme provided by the invention, said slide block structure is two oblique contract pieces that elasticity connects, and when stretching out, tiltedly the tight tiltedly contract piece of contract slide block promotion spring band dynamic pressure together stretches out; During retraction, oblique contract slide block protrusion position pulling compresses oblique contract cell wall and bounces back together.
The present invention compared with prior art, advantage is:
The invention of this reality is simple and reasonable for structure.Adopt connecting rod and oblique twice reinforcement of contract, reinforcement can reach more than 1000 times.The dual mechanical self-locking, tiltedly contract self-locking and connecting rod self-locking are reliable and stable.The thrust of work is mainly by oblique contract compact heap, tiltedly contract slide block, pedestal bear, and the material of these parts of choose reasonable and structure can realize the clamping of 100t or bigger thrust.Hydraulic system is only compressing and release process work, and all the other times need not pressure source, requires low to hydraulic system; Even clamping device course of work oil cylinder working-pressure reduces by 80%, but also operate as normal, and because the mechanical self-latching system has accomplished self-locking, oil cylinder has certain pressure can make self-locking more reliable.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Fig. 2 is Figure 1A-A position profile figure
Fig. 3 is that powerful self-locking concertina type hydraulic clamp clamps sketch map
Accompanying drawing 1 description of symbols:
1-pedestal, 2-oil cylinder, 3-piston rod, 4-front rod
5-slide block bearing pin, the oblique contract slide block of 6-
13-back link, 14-piston rod bearing pin, 15-right oil port joint
Port connection, 17-left oil port joint in the middle of the 16-
Accompanying drawing 2 description of symbols:
7-support spring, 8-support slipper, the oblique contract compact heap of 9-
10-connects spring, 11-lid, 12-free bearing bearing pin
Accompanying drawing 3 description of symbols:
1-pedestal, 4-front rod, the oblique contract slide block of 6-
7-support spring, 8-support slipper, the oblique contract compact heap of 9-
10-connects spring, 18-workpiece
The specific embodiment
Middle hydraulic fluid port advances pressure oil, promotes left and right sides piston rod and stretches out; Piston rod (3) promotes back link (13) and front rod (4) rotates; Back link (13) is around free bearing bearing pin (12) rotation, and front rod (4) rotates around slide block bearing pin (5); The slide block bearing pin promotes oblique contract slide block (6) and moves along the guiding square hole of pedestal (1), promotes oblique contract compact heap (9) and stretches out through connecting spring (10) simultaneously; Support spring (7) pushing support slipper (8) is fitted oblique contract compact heap (9) and oblique contract slide block (6) all the time; When oblique contract compact heap (9) reaches designed distance, its afterbody protrusion snaps on the guiding hole wall, and tiltedly contract compact heap (9) can not continue to stretch out; At this moment tiltedly contract slide block (6) continues to move; Under the effect of slope, tiltedly contract compact heap (9) moves down, and support slipper (8) compression support spring (7) is stepped down; Tiltedly contract compact heap (9) is pressed on the workpiece, realizes compressing workpiece (18).
Left and right sides hydraulic fluid port (15) (17) advances pressure oil, middle hydraulic fluid port (16) oil return, and piston rod (3) retraction, pulling back link (13) and front rod (4) rotate; Back link (13) is around free bearing bearing pin (12) rotation, and front rod (4) rotates around slide block bearing pin (5); It is mobile along the guiding square hole retraction of pedestal (1) that the slide block bearing pin drives oblique contract slide block (6); Tiltedly contract compact heap (9) lifts in support spring (7) effect; Unclamp workpiece, when the boss of oblique contract slide block moves to oblique contract compact heap groove rear wall, spur oblique contract compact heap (9) and bounce back together; Realization being totally released and stepping down workpiece.
Claims (5)
1. powerful self-locking hydraulic clamp is characterized in that: oil cylinder (2) is connected with front rod (4) and back link (13) through the bearing pin (14) on piston rod (3) head, and is unsettled in clamping device; Front rod (4) other end links together through slide block bearing pin (5) with oblique contract slide block (6); The other end of back link is connected on the free bearing on the pedestal (1) through bearing pin (12); Tiltedly contract compact heap (9) realizes that through being connected spring (10) elasticity connects with oblique contract slide block (6); Tiltedly contract compact heap (9) and oblique contract slide block (6) are packed in the square guide hole of pedestal together.Support spring (7) is installed in the pedestal spring) in the installing hole, support slipper (8) is installed on the support spring (7), and support oblique contract compact heap (9) and oblique contract slide block (6) and move along guiding square hole upper surface.
2. oil cylinder according to claim 1 (2) is characterized in that: three oilholes are arranged, middle oilhole joint (16), left oil port joint (18) and right oil port joint (17).During clamping, middle hydraulic fluid port oil-feed, left and right sides hydraulic fluid port oil return, when resetting, left and right sides hydraulic fluid port oil-feed, middle hydraulic fluid port oil return.
3. piston rod according to claim 1 (3) is characterized in that: two piston rods are arranged symmetrically in the oil cylinder, guarantee to clamp synchronously, and are stressed even, designs simplification.
4. oblique contract slide block according to claim 1 (6) and oblique contract compact heap (9); It is characterized in that: tiltedly on contract slide block (6) slope convexity is arranged; Tiltedly contract compact heap (9) is fluted; Be used for cooperating and install, utilize the elasticity that connects two oblique contract pieces of spring (10) realization to connect, allow two oblique contracts to relatively move.
5. oblique contract compact heap according to claim 1 (9) is characterized in that: at big end the boss rank are arranged, be used for limit axial and move, realize that oblique contract compact heap (9) under oblique contract slide block (6) ramp effect, moves downward, realize the clamping to workpiece.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101628048A CN102825562A (en) | 2011-06-13 | 2011-06-13 | High-strength self-locking telescopic hydraulic clamping device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101628048A CN102825562A (en) | 2011-06-13 | 2011-06-13 | High-strength self-locking telescopic hydraulic clamping device |
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| Publication Number | Publication Date |
|---|---|
| CN102825562A true CN102825562A (en) | 2012-12-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011101628048A Pending CN102825562A (en) | 2011-06-13 | 2011-06-13 | High-strength self-locking telescopic hydraulic clamping device |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105171462A (en) * | 2015-08-21 | 2015-12-23 | 江南大学 | Hydraulic clamping device with powerful self-locking function |
| CN105486458A (en) * | 2016-01-25 | 2016-04-13 | 南京宝泰特种材料股份有限公司 | Pressure testing device |
| CN105598874A (en) * | 2014-11-24 | 2016-05-25 | 鸿富锦精密电子(郑州)有限公司 | Automatic buckling structure |
| CN107366813A (en) * | 2017-07-13 | 2017-11-21 | 合肥哨商信息技术有限公司 | A kind of easy-to-dismount computer display fixing device |
| CN108705477A (en) * | 2018-06-28 | 2018-10-26 | 黄河水利职业技术学院 | A kind of mechanical electric positioning device |
| CN109571086A (en) * | 2018-11-30 | 2019-04-05 | 四川航天长征装备制造有限公司 | A kind of interior support system of Rocket tank shell section circumferential direction cutting |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2056102U (en) * | 1989-06-08 | 1990-04-18 | 成都航空工业学校 | Hydraulic self-lock chuck |
| CN1088542A (en) * | 1992-12-19 | 1994-06-29 | 太原重型机器厂 | Self-locking rail clamping device |
| CN201137056Y (en) * | 2007-12-18 | 2008-10-22 | 中国海洋石油总公司 | Reinforcement type wedge plate claw structure |
| CN201249417Y (en) * | 2008-09-03 | 2009-06-03 | 宁波顺兴机械制造有限公司 | Self-locking hydraulic fixture |
-
2011
- 2011-06-13 CN CN2011101628048A patent/CN102825562A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2056102U (en) * | 1989-06-08 | 1990-04-18 | 成都航空工业学校 | Hydraulic self-lock chuck |
| CN1088542A (en) * | 1992-12-19 | 1994-06-29 | 太原重型机器厂 | Self-locking rail clamping device |
| CN201137056Y (en) * | 2007-12-18 | 2008-10-22 | 中国海洋石油总公司 | Reinforcement type wedge plate claw structure |
| CN201249417Y (en) * | 2008-09-03 | 2009-06-03 | 宁波顺兴机械制造有限公司 | Self-locking hydraulic fixture |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105598874A (en) * | 2014-11-24 | 2016-05-25 | 鸿富锦精密电子(郑州)有限公司 | Automatic buckling structure |
| CN105598874B (en) * | 2014-11-24 | 2020-02-11 | 鸿富锦精密电子(郑州)有限公司 | Automatic buckling structure |
| CN105171462A (en) * | 2015-08-21 | 2015-12-23 | 江南大学 | Hydraulic clamping device with powerful self-locking function |
| WO2017031797A1 (en) * | 2015-08-21 | 2017-03-02 | 江南大学 | Hydraulic clamping device having powerful self-locking function |
| CN105486458A (en) * | 2016-01-25 | 2016-04-13 | 南京宝泰特种材料股份有限公司 | Pressure testing device |
| CN107366813A (en) * | 2017-07-13 | 2017-11-21 | 合肥哨商信息技术有限公司 | A kind of easy-to-dismount computer display fixing device |
| CN108705477A (en) * | 2018-06-28 | 2018-10-26 | 黄河水利职业技术学院 | A kind of mechanical electric positioning device |
| CN109571086A (en) * | 2018-11-30 | 2019-04-05 | 四川航天长征装备制造有限公司 | A kind of interior support system of Rocket tank shell section circumferential direction cutting |
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Application publication date: 20121219 |