CN101315104B - Hydraulic tensioning clamper and shaft - Google Patents
Hydraulic tensioning clamper and shaft Download PDFInfo
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- CN101315104B CN101315104B CN200710099766XA CN200710099766A CN101315104B CN 101315104 B CN101315104 B CN 101315104B CN 200710099766X A CN200710099766X A CN 200710099766XA CN 200710099766 A CN200710099766 A CN 200710099766A CN 101315104 B CN101315104 B CN 101315104B
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Abstract
The invention relates to a hydraulic tension clamping device, which comprises three hydraulic tension sleeves and two hydraulic tension shafts. The hydraulic tension sleeve comprises an internal sleeve, an external sleeve, a pressure adjustment structure, an auxiliary torque transmission sleeve, and a compression ring. The hydraulic tension shaft comprises an internal sleeve, an external sleeve, and a pressure adjustment structure, wherein the pressure adjustment structure is the assembly of a sealing plate and a cylindrical pin or an elastic workpiece. The inventive hydraulic tension clamping device can realize rapid installation and machining precision improvement purposes in practical mechanical processing.
Description
Technical field
What the present invention relates to is a kind of anchor clamps, particularly be a kind of mechanical clamp that utilizes hydraulic pressure tensioner principle to realize.
Background technique
In present mechanical engineering processing, axle is quotidian with being connected of hole, but this directly has influence on the efficient and the precision of part processing with the precision that is connected in hole, and the wearing and tearing to cutter and equipment simultaneously also have great influence.
With the example that is applied as of cutter processing, in the ideal case, all teeth of cutter all should participate in cutting, thereby realize the balanced cutting of full-depth tooth, and under this working state, the precision of processing accessories is the highest, surface roughness is minimum, and the wearing and tearing of equipment and cutter are minimum.But actual conditions mainly contain the factor of following four aspects and have restricted this balanced cutting:
1, the running accuracy of machine spindle;
2, the accuracy of manufacturing of cutter;
3, the cutter vibrations that cause of a variety of causes (vibrations of equipment, the rigidity of equipment, dynamic balancing etc.);
4, the most outstanding is the Placement and the precision of cutter and machine spindle.
Generally speaking, because there are fit tolerance in cutter axis hole and main shaft, cause gap between the two thus usually about 0.05mm, another kind of situation is, because the cutter axis hole is unreasonable with being connected of main shaft, cause the cutter clamping not just, precision is not high, and very easily wearing and tearing, wearing and tearing back clamping precision can't guarantee.Two kinds of situations cause the eccentric motion of cutter on running shaft thus, cause cutting edge roundness to produce radial run-out when rotated, processing accessories must cause the unbalanced cutting of cutter tooth under this working state, the precision of processing accessories can't improve with surface roughness and can't reduce, the wearing and tearing aggravation of equipment and cutter.
Traditional cutter clamps the method that adopts mechanical fixation, has the deficiency of four aspects:
1, time-consuming, the effort of clamping causes manufacturing efficiency to descend;
2, Placement is not good, causes cutter just being difficult for folder;
3, clamping force inequality easily causes the damage of anchor clamps and cutter;
4, the difference of clamping force size causes the effect difference that is fixedly clamped, and finally causes the unstable product quality of batch process.
For overcoming above-mentioned defective, creator of the present invention is through research and practice have obtained this creation finally for a long time.
Summary of the invention
The objective of the invention is to, a kind of hydraulic tensioning clamper is provided,, reach the purpose that rapid installation improves machining accuracy in order to overcome above-mentioned technological deficiency.
For achieving the above object, the technical solution used in the present invention is, a kind of hydraulic pressure tensioner cover at first is provided, cover and overcoat in it comprises, have the axial hole that is used for coupling shaft on the cover axis in described, interior cover and overcoat connect together by welding, and natural enclosing goes out an annular oil cavity that certain-length is arranged vertically, have two oil ducts at the overcoat lateral margin, oil duct and annular oil cavity are airtight in the welding body inside of interior cover and overcoat, described two oil ducts have one to be connected with annular oil cavity, and with described oil channel sealing, another oil duct inside that has at described overcoat lateral margin is provided with pressure adjustment structure with circle ball and a fastening screw trip bolt in the port of an oil duct that has at described overcoat lateral margin, during work, hold oily space by changing inside, thereby make hydraulic oil produce pressure, carry out tensioner; Described pressure adjustment structure comprises: a sealing gasket, a straight pin and a fastening piece, in described sealing gasket one end face circular hole is arranged, and in the end face of described straight pin tapped hole is arranged, described fastening piece is cylindrical bolt or Cock screw;
Preferable, described pressure adjustment structure is spring workpiece and fastening piece, the spring workpiece comprises: interior joint, outer joint and spring adjustment part between the two, joint is a cylinder tubbiness cavity in described, the two ends of described spring adjustment part by welding with described in joint, outer joint Joint or be combined into one by one-body molded mode;
Preferable, joint has outside thread in described, the oil duct that described overcoat lateral margin has is a stairstepping, wherein there is one section ladder to be provided with internal thread, with the corresponding engagement of outside thread of described interior joint, an end face of joint leans on described oil duct step by sealing gasket in described;
Preferable, the oil duct that described spring workpiece is arranged on is for connecting shape, and described spring workpiece stretches into described oil duct inside and welds mutually with described oil duct, and welded seal is passed through in a port of described oil duct;
Preferable, described outer putting has tapped hole or countersunk head through hole and the dynamic balancing hole that is used for fixing cutter, and the axle head afterbody is step-like;
Preferable, two oil duct angles of described overcoat are provided with at 45;
Preferable, also comprise a moment of torsion transmission cover, described moment of torsion transmission cover is petal endoporus for cylindrical body has a cross section in it, and the cross section that is adjacent is circular endoporus, the internal diameter of described circular inner hole equates with the external diameter of described overcoat, is fixed together by being arranged on axial screw and the described overcoat of described moment of torsion transmission cover;
Preferable, the pressure ring that also comprises a fixed cutting tool, described pressure ring is that cylindrical body has a cross section in it and is circular endoporus, screw counter bore is vertically arranged on it, the internal diameter of described circular inner hole equates with the external diameter of described overcoat step axle, connects with described overcoat and tightens up cutter by being arranged on the axial screw of described pressure ring;
Next the invention provides a kind of hydraulic pressure tension shaft, and it comprises outer shaft and interior axle, and described outer shaft is step-like cylindrical body, has oil duct on its axis, and described oil duct port forms cavity; Axis has oil duct in described, it stretches into described cavity, and one end and cavity inner wall have the gap, makes outer shaft and coaxial being fixed together of interior axle by welding, the formation oil pocket is provided with round ball in the oil duct outlet port of described outer shaft and fastening screw trip bolt seals it; The oil duct of axle is provided with pressure adjustment structure in described, and the oil duct port of axle is provided with the tightening part in described, during work, holds oily space by changing inside, thereby makes hydraulic oil produce pressure, carries out tensioner; Described pressure adjustment structure comprises: a sealing gasket and a straight pin, in described sealing gasket one end face circular hole is arranged, and in the end face of described straight pin tapped hole is arranged;
Preferable, described pressure adjustment structure is the spring workpiece, described spring workpiece comprises: interior joint, outer joint and spring adjustment part between the two, joint is a cylinder tubbiness cavity in described, the two ends of described spring adjustment part by welding with described in joint, outer joint Joint or be combined into one by one-body molded mode, described in joint by welding with described in the oil duct end Joint of axle.
Advantage of the present invention (with the example that is applied as on cutter):
1, rational in infrastructure, clamping accuracy and repeatability are high, safe and reliable;
2, the wearing and tearing of machine spindle, hydraulic pressure tensioner cover and cutter are extremely low, can keep clamping precision for a long time;
3, the cutter mounting or dismounting are convenient, shortened the time of tool changing and shutdown, improved manufacturing efficiency;
4, eliminate matching gap, improved coaxality;
5, the cutter vibrations reduce, and prolong the working life of equipment;
6, prolong the working life of cutter;
7, the machining accuracy of part improves, and surface roughness reduces.
Description of drawings
Fig. 1 is the plan view of the user mode of hydraulic pressure tensioner cover of the present invention;
Fig. 2 A, Fig. 2 B are the structure master's sectional view and the side view of hydraulic pressure tensioner cover of the present invention;
Fig. 3 A, Fig. 3 B are hydraulic pressure tensioner cover overcoat master's sectional view of the present invention and sectional view;
Fig. 4 is the interior cover sectional view of hydraulic pressure tensioner cover of the present invention;
Fig. 5 A, Fig. 5 B are main sectional view and sectional view after overcoat welds in the hydraulic pressure tensioner cover of the present invention;
Fig. 6 A, Fig. 6 B are the main sectional view and the sectional view of hydraulic pressure tensioner cover of the present invention preferred embodiment one;
Fig. 7 is hydraulic pressure tensioner cover sealing gasket sectional view of the present invention;
Fig. 8 is hydraulic pressure tensioner cover straight pin sectional view of the present invention;
Fig. 9 A, Fig. 9 B are the main sectional view and the sectional view of hydraulic pressure tensioner cover of the present invention preferred embodiment two;
Figure 10 A, Figure 10 B are the main sectional view and the sectional view of hydraulic pressure tensioner cover of the present invention preferred embodiment three;
Figure 11 A, Figure 11 B are the main sectional view and the side view of the moment of torsion transmission cover of hydraulic pressure tensioner cover of the present invention;
Figure 12 A, Figure 12 B are the main sectional view and the side view of the pressure ring of hydraulic pressure tensioner cover of the present invention;
Figure 13 is hydraulic pressure tension shaft of the present invention preferred embodiment one sectional view;
Figure 14 is hydraulic pressure tension shaft of the present invention preferred embodiment two sectional views.
Embodiment
Below in conjunction with accompanying drawing, be described in more detail with other technical characteristics and advantage the present invention is above-mentioned.
See also shown in Figure 1, it is the plan view of the user mode of hydraulic pressure tensioner cover of the present invention, it comprises machine spindle 7, hydraulic pressure tensioner cover 1, cutter 2, spacer shell 4, pressure ring 5, described hydraulic pressure tensioner cover 1 is set on the described machine spindle 7 to be realized by pressure ring 5 and screw, described cutter 2 is set on the outer rim of described hydraulic pressure tensioner cover 1, and by spacer shell 4 and pressure ring screw cutter 2 is leaned in described hydraulic pressure tensioner and to overlap on the step of 1 overcoat, main shaft 7 and cutter 2 that the effect by the hydraulic pressure tensioner connects hydraulic pressure tensioner cover are realized the cooperation of no gap.
See also shown in Fig. 2 A, Fig. 2 B, it is respectively the structure master's sectional view and the side view of hydraulic pressure tensioner cover of the present invention, very clearly finds a petal structure and the screw of arranging by side view around it; By main sectional view, described as can be known hydraulic pressure tensioner cover mainly comprises: interior cover 12, overcoat 11, pressure inside are adjusted structure and fastening piece (not looking among the figure), also should comprise structure such as moment of torsion transmission cover and the pressure ring that some are auxiliary certainly.
See also shown in Fig. 3 A, Fig. 3 B, it is hydraulic pressure tensioner cover overcoat master's sectional view of the present invention and sectional view; Described overcoat 11 is the cylinder table scalariform, it is provided with axis hole along axial direction and is used for connecting described interior cover 12, on described overcoat 11, have circular groove 111,112, lateral margin at described step has two oil circuits, described oil circuit is a lineal shape, described oil circuit does not connect the outer rim of described overcoat step, and the angle of two oil circuits is 45 degree.
See also shown in Figure 4ly, it is the interior cover sectional view of hydraulic pressure tensioner of the present invention cover; Cover is for cylindric in described, it is provided with along axis and is used for the hole that socket-connects with described machine spindle 7, the outer rim of cover 12 has circular groove 121,122 in described, to reach when the work of hydraulic pressure tensioner cover, the purpose that inwall is inwardly evenly expanded, it is corresponding with the circular groove 111,112 that the active chamber of described overcoat 11 has.
See also shown in Fig. 5 A, Fig. 5 B, it is respectively main sectional view and the sectional view after the overcoat welding in the hydraulic pressure tensioner cover of the present invention; Cover 12 in described is inserted the inside of described overcoat 11, by welding 13 both are fixed together, thereby between forms airtight oil pocket 14, described high pressure oil realizes that by the oil circuit of described overcoat lateral margin oil-feed is fuel-displaced just therein.
See also shown in Fig. 6 A, Fig. 6 B, it is respectively the main sectional view and the sectional view of hydraulic pressure tensioner cover of the present invention preferred embodiment one; One end of 11 1 oil ducts of overcoat of the tensioner after above-mentioned welding cover is fastening good by circle ball 11 and screw 172 sealings, relevant pressure is installed in another set of oil duct is adjusted structure, described pressure adjustment structure comprises sealing gasket 151 and cylinder 152 plugs.
See also shown in Figure 7ly, it is hydraulic pressure tensioner of the present invention cover sealing gasket sectional view; Described sealing gasket 151 is being near having circular hole 1511 in the end face of described oil circuit, the acting as of this circular hole 1511: when work, hydraulic oil produces pressure to this hole, and sealing gasket 151 is outwards expanded, a reliable seal action.
See also shown in Figure 8ly, it is hydraulic pressure tensioner of the present invention cover straight pin sectional view; Described straight pin 152 is being near having tapped hole 1521 in the end face of described screw seal, the acting as of described tapped hole 1521: be screwed into screw when dismounting, be convenient to extract.
See also shown in Fig. 9 A, Fig. 9 B, it is respectively the main sectional view and the sectional view of hydraulic pressure tensioner cover of the present invention preferred embodiment two; The difference of itself and above-mentioned preferred embodiment is, it is a spring workpiece that described hydraulic pressure is adjusted structure, described spring workpiece comprises: interior joint 161, outer joint 163 and spring adjustment part 162 between the two, joint 161 be a cylinder tubbiness cavity in described, and the two ends of described spring adjustment part 162 are combined into one by welding and described interior joint 161, outer joint 163 Joints or by one-body molded mode; Joint 161 has outside thread in described, the oil duct that described overcoat 11 lateral margins have is a stairstepping, wherein there is one section ladder to be provided with internal thread, with the corresponding engagement of outside thread of described interior joint 161, an end face of joint leans on described oil duct step by sealing gasket 19 in described; To from the angle of hydraulic oil sealing principle, is to change motive sealing into static seal.On engineering reliability, static seal is higher than motive sealing, thereby the key of present embodiment is exactly to be to introduce the spring workpiece to have realized the driven conversion that is sealed to static seal: the sealing gasket 19 of packing in the hole of overcoat 11 earlier, reach sealing purpose by tightening the spring workpiece, during work, tighten screw compression ring-spring, thereby make hydraulic oil produce pressure, reach the purpose of tensioner.
See also shown in Figure 10 A, Figure 10 B, it is respectively the main sectional view and the sectional view of hydraulic pressure tensioner cover of the present invention preferred embodiment three; Itself and described embodiment's two difference is, the oil duct that described spring workpiece is arranged on is for connecting shape, described spring workpiece stretches into described oil duct inside and welds mutually with described oil duct, and a port of the opening of described oil duct is by welded seal 9; No matter but in fact the Placement of spring workpiece how, the introducing of spring workpiece has all thoroughly solved the not high problem of motive sealing functional reliability.
When it combines as corresponding workpiece such as cutter with other as anchor clamps, corresponding supplementary structure be must need, moment of torsion transmission cover 3 and pressure ring 5, certain fastening piece that also comprises as cylindrical bolt or Cock screw are as involved in the present invention.
See also shown in Figure 11 A, Figure 11 B, it is respectively the main sectional view and the side view of the moment of torsion transmission cover of hydraulic pressure tensioner cover of the present invention, described moment of torsion transmission cover 3 is petal endoporus 31 for cylindrical body has a cross section in it, and the cross section that is adjacent is circular endoporus, the internal diameter of described circular inner hole equates with the external diameter of described overcoat 11, overlaps 3 axial screw and described overcoats 11 and is fixed together by being arranged on described moment of torsion transmission; See also simultaneously shown in Figure 12 A, Figure 12 B, it is respectively the main sectional view and the side view of the pressure ring of hydraulic pressure tensioner cover of the present invention; Described pressure ring 5 is circular endoporus for cylindrical body has a cross section in it, screw counter bore is vertically arranged on it, the internal diameter of described circular inner hole equates with the external diameter of described overcoat 11 step axles, connects with described overcoat 11 and tightens up cutter 2 by being arranged on described pressure ring 5 axial screws;
Through the combination of said structure, the outstanding compact structure that has embodied anchor clamps of the present invention, advantage easy to process.Moment of torsion transmission cover 3 and hydraulic pressure tensioner cover 1 adopt the mounting type of split, can process respectively, save the manufacture cycle, because 3 independent processing is overlapped in the moment of torsion transmission, the equipment of use is simple relatively, can save processing cost in addition.The Placement of moment of torsion transmission cover 3 and hydraulic pressure tensioner cover 1, the fit system of the external diameter of employing hydraulic pressure tensioner cover 1 and the endoporus of moment of torsion transmission cover 3 realizes that with the fastening of screw this Placement has not only guaranteed coaxality but also realized easy making process.Pressure ring 5 and hydraulic pressure tensioner are overlapped 1 cooperating structure compactness, have reduced the outside dimension of pressure ring 5 greatly, make corresponding the reducing of outside dimension of spacer shell 4, to reach the purpose of weight reduction and economical with materials.
The present invention also provides a kind of hydraulic pressure tension shaft on the other hand, sees also shown in Figure 13ly, and it is hydraulic pressure tension shaft of the present invention preferred embodiment one sectional view; It comprises outer shaft 11 and interior axle 12 and the inner pressure adjustment structure that is provided with, and described outer shaft 11 is step-like cylindrical body, has oil duct on its axis, and described oil duct port forms cavity; Axle 12 axis have oil duct in described, it stretches into described cavity, and one end and cavity inner wall have the gap, makes outer shaft 11 and interior axle 12 coaxial being fixed together by welding, form oil pocket, be provided with round ball 171 and fastening screw trip bolt 172 in the oil duct outlet port of described outer shaft its sealing; The oil duct of axle 12 is provided with pressure adjustment structure in described, and the oil duct port of axle 12 is provided with the tightening part in described, during work, holds oily space by changing inside, thereby makes hydraulic oil produce pressure, carries out tensioner; Adjustment structure among described pressure adjustment structure such as Fig. 6 B, it comprises: a sealing gasket 151 and a straight pin 152, in described sealing gasket 151 1 end faces circular hole 1511 is arranged, tapped hole 1521 is arranged in the end face of described straight pin 152; Above-mentioned sealing gasket and straight pin structure such as Fig. 7, shown in Figure 8.
See also shown in Figure 14, it is hydraulic pressure tension shaft of the present invention preferred embodiment two sectional views, the difference of itself and above-mentioned hydraulic pressure tension shaft is, its used pressure adjustment structure is the spring workpiece, described spring workpiece comprises: interior joint 161, outer joint 163 and spring adjustment part 162 between the two, joint 161 is a cylinder tubbiness cavity in described, the two ends of described spring adjustment part 162 are by welding and described interior joint 161, outer joint 163 Joints or be combined into one by one-body molded mode, described in joint 161 by welding with described in the oil duct end Joint of axle 12.
The using process of the hydraulic tensioning clamper in the foregoing description is: be screwed into oil filler pipe at the port B of the oil duct with pressure adjustment structure before oil-filled, hydraulic oil enters from this mouth, after active chamber is full of, overflow from oil duct one port C by circle ball and screw sealing, realize static seal by the circle ball by the fastening back of screw then, have pressure adjustment structure to realize motive sealing in the B port; This sealing structure is reliable, working stability.Tapped hole thereon has double-deck effect, not only moment of torsion transmission cover 3 but also connect cutter 2.
The working principle of this structure is: be full of under the state of hydraulic oil at active chamber and oil circuit, tightening screw promotion pressure adjustment structure moves in oil circuit, because cavity and oil circuit are all for air-tight state, pressure is transmitted to the inside and outside wall of cavity through oil circuit by hydraulic oil, make inside and outside wall produce resiliently deformable, outer wall expands outwardly, inwall inwardly shrinks, if this moment, hydraulic pressure tensioner cover was in running order, the result is the main shaft of inwall equipment for enclasping, and the endoporus of outer wall jam-packed cutter reaches the coaxality that has both kept machine spindle and cutter endoporus, and connect reliable, do not have wearing and tearing, make cutter keep the purpose of good stability.If need the dismounting cutter, then unclamp screw, inside and outside wall produces resilience, restores to the original state, and this moment, cutter can be dismantled.
The above only is preferred embodiment of the present invention, only is illustrative for the purpose of the present invention, and nonrestrictive.Those skilled in the art is understood, and can carry out many changes to it in the spirit and scope that claim of the present invention limited, revise, even equivalence, but all will fall within the scope of protection of the present invention.
Claims (10)
1. hydraulic pressure tensioner cover, cover and overcoat in it comprises, have the axial hole that is used for coupling shaft on the cover axis in described, interior cover and overcoat connect together by welding, and natural enclosing goes out an annular oil cavity that certain-length is arranged vertically, have 2 oil ducts at the overcoat lateral margin, oil duct and annular oil cavity are airtight in the welding body inside of interior cover and overcoat, described 2 oil ducts have one to be connected with annular oil cavity, it is characterized in that, the port of an oil duct that has at described overcoat lateral margin with circle ball and a fastening screw trip bolt with described oil channel sealing, another oil duct inside that has at described overcoat lateral margin is provided with pressure adjustment structure, during work, by changing the inner oily space that holds, thereby make hydraulic oil produce pressure, carry out tensioner; Described pressure adjustment structure comprises: a sealing gasket, a straight pin and a fastening piece, in described sealing gasket one end face circular hole is arranged, and in the end face of described straight pin tapped hole is arranged, described fastening piece is cylindrical bolt or Cock screw.
2. hydraulic pressure tensioner cover according to claim 1, it is characterized in that, described pressure adjustment structure is spring workpiece and fastening piece, the spring workpiece comprises: interior joint, outer joint and spring adjustment part between the two, joint is a cylinder tubbiness cavity in described, the two ends of described spring adjustment part by welding with described in joint, outer joint Joint or be combined into one by one-body molded mode.
3. hydraulic pressure tensioner cover according to claim 2, it is characterized in that, joint has outside thread in described, the oil duct that described overcoat lateral margin has is a stairstepping, wherein there is one section ladder to be provided with internal thread, with the corresponding engagement of outside thread of described interior joint, an end face of joint leans on described oil duct step by sealing gasket in described.
4. hydraulic pressure tensioner cover according to claim 2, it is characterized in that, the oil duct that described spring workpiece is arranged on is for connecting shape, and described spring workpiece stretches into described oil duct inside and welds mutually with described oil duct, and welded seal is passed through in a port of described oil duct.
5. hydraulic pressure tensioner cover according to claim 1 is characterized in that, described outer putting has tapped hole or countersunk head through hole and the dynamic balancing hole that is used for fixing cutter, and the axle head afterbody is step-like.
6. hydraulic pressure tensioner cover according to claim 1 is characterized in that, 2 oil duct angles of described overcoat are provided with at 45.
7. hydraulic pressure tensioner cover according to claim 1, it is characterized in that, also comprise a moment of torsion transmission cover, described moment of torsion transmission cover is petal endoporus for cylindrical body has a cross section in it, and the cross section that is adjacent is circular endoporus, the internal diameter of described circular inner hole equates with the external diameter of described overcoat, is fixed together by being arranged on axial screw and the described overcoat of described moment of torsion transmission cover.
8. hydraulic pressure tensioner cover according to claim 1, it is characterized in that, the pressure ring that also comprises a fixed cutting tool, described pressure ring is that cylindrical body has a cross section in it and is circular endoporus, screw counter bore is vertically arranged on it, the internal diameter of described circular inner hole equates with the external diameter of described overcoat step axle, connects with described overcoat and tightens up cutter by being arranged on the axial screw of described pressure ring.
9. a hydraulic pressure tension shaft is characterized in that, it comprises outer shaft and interior axle, and described outer shaft is step-like cylindrical body, has oil duct on its axis, and described oil duct port forms cavity; Axis has oil duct in described, it stretches into described cavity, and one end and cavity inner wall have the gap, makes outer shaft and coaxial being fixed together of interior axle by welding, the formation oil pocket is provided with round ball in the oil duct outlet port of described outer shaft and fastening screw trip bolt seals it; The oil duct of axle is provided with pressure adjustment structure in described, and the oil duct port of axle is provided with the tightening part in described, during work, holds oily space by changing inside, thereby makes hydraulic oil produce pressure, carries out tensioner; Described pressure adjustment structure comprises: a sealing gasket and a straight pin, in described sealing gasket one end face circular hole is arranged, and in the end face of described straight pin tapped hole is arranged.
10. hydraulic pressure tension shaft according to claim 9, it is characterized in that, described pressure adjustment structure is the spring workpiece, described spring workpiece comprises: interior joint, outer joint and spring adjustment part between the two, joint is a cylinder tubbiness cavity in described, the two ends of described spring adjustment part by welding with described in joint, outer joint Joint or be combined into one by one-body molded mode, described in joint by welding with described in the oil duct end Joint of axle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200710099766XA CN101315104B (en) | 2007-05-30 | 2007-05-30 | Hydraulic tensioning clamper and shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200710099766XA CN101315104B (en) | 2007-05-30 | 2007-05-30 | Hydraulic tensioning clamper and shaft |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101315104A CN101315104A (en) | 2008-12-03 |
| CN101315104B true CN101315104B (en) | 2011-07-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200710099766XA Expired - Fee Related CN101315104B (en) | 2007-05-30 | 2007-05-30 | Hydraulic tensioning clamper and shaft |
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| CN (1) | CN101315104B (en) |
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| CN104033502A (en) * | 2014-05-22 | 2014-09-10 | 高润 | Hydraulic expansion sleeve |
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| EP0991872B1 (en) * | 1997-06-26 | 2003-06-11 | Leitz GmbH & Co. KG | Fastening device |
| DE19728457B4 (en) * | 1997-07-03 | 2004-01-15 | Ringfeder Vbg Gmbh | Hydraulically tensionable element for the frictional connection of a cylindrical component with a body arranged concentrically to it |
| CN2746992Y (en) * | 2004-11-08 | 2005-12-21 | 浙江精工科技股份有限公司 | Hydraulic swelling-up device |
| DE102005058156B3 (en) * | 2005-12-05 | 2007-02-01 | Schunk Gmbh & Co. Kg Spann- Und Greiftechnik | Hydraulic clamping device for tools in machine tool has clamping screw with central threaded through boring into which pre-setting screw is screwed |
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- 2007-05-30 CN CN200710099766XA patent/CN101315104B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0991872B1 (en) * | 1997-06-26 | 2003-06-11 | Leitz GmbH & Co. KG | Fastening device |
| DE19728457B4 (en) * | 1997-07-03 | 2004-01-15 | Ringfeder Vbg Gmbh | Hydraulically tensionable element for the frictional connection of a cylindrical component with a body arranged concentrically to it |
| CN2746992Y (en) * | 2004-11-08 | 2005-12-21 | 浙江精工科技股份有限公司 | Hydraulic swelling-up device |
| DE102005058156B3 (en) * | 2005-12-05 | 2007-02-01 | Schunk Gmbh & Co. Kg Spann- Und Greiftechnik | Hydraulic clamping device for tools in machine tool has clamping screw with central threaded through boring into which pre-setting screw is screwed |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104033502A (en) * | 2014-05-22 | 2014-09-10 | 高润 | Hydraulic expansion sleeve |
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|---|---|
| CN101315104A (en) | 2008-12-03 |
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