CN108942280A - Oil-pressure clamping head with leak-stopping oil ring - Google Patents
Oil-pressure clamping head with leak-stopping oil ring Download PDFInfo
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- CN108942280A CN108942280A CN201710348435.9A CN201710348435A CN108942280A CN 108942280 A CN108942280 A CN 108942280A CN 201710348435 A CN201710348435 A CN 201710348435A CN 108942280 A CN108942280 A CN 108942280A
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- Prior art keywords
- oil
- ring
- leak
- stopping
- pressure
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q2703/00—Work clamping
- B23Q2703/02—Work clamping means
- B23Q2703/04—Work clamping means using fluid means or a vacuum
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Gripping On Spindles (AREA)
Abstract
A kind of Oil-pressure clamping head with leak-stopping oil ring includes a pedestal, an axle bed, a rotating shaft unit, several leak-stopping oil rings and a collet chuck unit.The gap that can lead to for pressure oil stream is generated between one first side of the axle bed and a second side of the rotating shaft unit, the leak-stopping oil ring is installed between the first side and the second side, and respectively have one across the gap and by the first side extend to the basal wall of the second side, one be connected to the basal wall and be fixed on the first ring wall of the axle bed, one be connected to the basal wall and adjacent to the second ring wall of the rotating shaft unit, which is thickly supported by pressure oil tug kinetic oil and terminates in the rotating shaft unit.When shutdown, which is acted on by pressure oil and generates flexible deformation, and reaches the preferably close effect of oil, and when operating, which is not contradicted with the rotating shaft unit, is avoided that generation high temperature friction, and can slow down the leak-stopping oil ring and generate aging.
Description
Technical field
The present invention relates to a kind of toolroom machines, more particularly to a kind of Oil-pressure clamping head with leak-stopping oil ring.
Background technique
A kind of Oil-pressure clamping head (No. 557239 Patent Case of TaiWan, China notification number) of existing toolroom machine, includes a machine
Seat, and it is installed on a fixing seat of the base inner, a sleeve, two bearings, a rotation seat, stopper seat, one
A pull rod, a preceding shaft-cup, collet chuck after shaft-cup, a preceding collet chuck and one after one.When pressure oil can be worn by flowing through one
When crossing the oil circuit of the base, the fixing seat, the rotation seat, and generating stopper to the stopper seat, the stopper seat can be made to before this
Collet chuck, the rear collet chuck generate the purpose tightened or loosened.
In general, an energy can be generated between an outer ring surface of the rotation seat and an inner ring surface of the fixing seat
For the gap that pressure oil penetrates into, it also will be installed several leak-stopping oil between the outer ring surface of the rotation seat and the inner ring surface of the fixing seat
Ring, and the section of the leak-stopping oil ring in normal state is rounded.
When toolroom machine is in shutdown status, and Oil-pressure clamping head to be operated carries out clamping or pine oil to a workpiece, will start pressure
Power oil from the oil circuit introduce, and penetrate into the gap when, the pressure that perfect condition is desirable to pressure oil can force the leak-stopping
Oil ring is deformed, and prevents pressure oil from generating leakage, and when the pressure of pressure oil is smaller, the degree of deformation of the leak-stopping oil ring is not
It is enough, it is the phenomenon that still generating leakage, just necessary if preventing from leaking and the leak-stopping oil ring to be allowed to generate enough degree of deformations
The pressure of pressure oil is improved, but the pressure for improving pressure oil may also cause to leak.
Furthermore if leaking in order to prevent, even and if make the leak-stopping oil ring under operating condition still with rotating member it
Between be kept in contact, so, under shutdown status, do not need to improve pressure, the leak-stopping oil ring can be made to generate preferable
Drain Resistance.But thus but will lead to the leak-stopping oil ring and be easy to produce abrasion, as continuous frictional leads to height
Warm and easy aging.
Summary of the invention
The purpose of the present invention is to provide a kind of structures to generate preferable Drain Resistance effect simply and when shutting down, prevent in the running
The Oil-pressure clamping head with leak-stopping oil ring only worn.
The present invention has the Oil-pressure clamping head of leak-stopping oil ring, and for clamping an at least workpiece, which includes a base
Seat, an axle bed, a rotating shaft unit, several leak-stopping oil rings and a collet chuck unit, the axle bed are installed on the base interior, and
With a first side, which extends along an axis, is able to rotate and is located in inside the axle bed, and has one
Relative to the second side of the first side, generation one can lead to for pressure oil stream between the first side and the second side
Gap, the leak-stopping oil ring are installed between the first side and the second side, and respectively have one across the gap and by
The first side extend to the basal wall of the second side, one be connected to the basal wall and wherein side and be fixed on the first of the axle bed
Ring wall, one be connected to the basal wall other side and the second ring wall adjacent to the rotating shaft unit, the basal wall, first ring wall with should
Second ring wall defines the oil duct that can be connected to the gap jointly, and when shutdown, the pressure of the oil duct is drained to along the gap
It is oily can the second ring wall described in stopper relative to first ring wall generate swing, second ring wall can oil it is close and support and terminate in this turn
Axle unit, the collet chuck unit are sheathed on inside the rotating shaft unit, can be tightened to the workpiece or pine oil by pressure oil driving.
The present invention has the Oil-pressure clamping head of leak-stopping oil ring, which also there is one to be connected to the first of the first side enter
Oilhole, one with this first enter that oilhole is arranged in a staggered manner second enter oilhole, which further includes having a main body and one
It is fixedly arranged on the driving wheel seat of the body side, a cylinder chamber is generated between the main body and the driving wheel seat, which sets
In the main body, the main body also have one be connected to this first enter between oilhole and the cylinder chamber first draw oil duct and one with should
First draw oil duct be arranged in a staggered manner and be connected to this second enter between oilhole and the cylinder chamber second draw oil duct, this first draw oil duct with
This second draws oil duct and is connected to the Single port of the cylinder chamber and respectively correspond the axis and be set to the two sides of the cylinder chamber.
The present invention has the Oil-pressure clamping head of leak-stopping oil ring, is respectively equipped with a leak-stopping oil in first two sides for drawing oil duct
Ring is respectively equipped with a leak-stopping oil ring in second two sides for drawing oil duct.
The present invention has the Oil-pressure clamping head of leak-stopping oil ring, first draws oil duct and this second draws two between oil duct positioned at this
Leak-stopping oil ring links into an integrated entity.
The present invention has the Oil-pressure clamping head of leak-stopping oil ring, the first side of the axle bed and the second side point of the rotating shaft unit
Not along radially extending perpendicular to the axis, the axle bed also have it is several recessed by the first side and be located at this
One enters oilhole two sides and second first chase for entering oilhole two sides, first enters oilhole and this second enters between oilhole positioned at this
Two the first chases interconnect, and the first ring wall difference build-in of the leak-stopping oil ring is in first chase, the rotating shaft unit
Main body also have several recessed by the second side and be located at this and first draw oil duct two sides and this second draws oil duct two sides
The second chase, first draw oil duct and this second draws two the second chases between oil duct and interconnect, the leak-stopping positioned at this
Second ring wall of oil ring is sheathed on respectively in second chase, and second chase is respectively by a ditch bottom surface and an intersection rank
The ditch side for being connected to the ditch bottom surface is defined jointly, and the width that the second ring wall of the leak-stopping oil ring corresponds to the radial direction is less than institute
The width of corresponding second chase, second ring wall can be generated pendulum by the pressure oil stopper in second chase respectively
It is dynamic, enable the second ring wall oil close and is resisted against corresponding ditch side.
The present invention has the Oil-pressure clamping head of leak-stopping oil ring, and the body interior and peace of the rotating shaft unit are also installed on comprising one
First draw the first check (non-return) valve on oil duct loaded on this, which allows pressure oil unidirectionally first to enter oilhole towards the cylinder by this
Room delivery, and can prevent the pressure oil of the cylinder chamber towards this first enter oilhole adverse current.
The present invention has the Oil-pressure clamping head of leak-stopping oil ring, and the body interior and peace of the rotating shaft unit are also installed on comprising one
Second draw the second check (non-return) valve on oil duct loaded on this, which allows pressure oil unidirectionally second to enter oilhole towards the cylinder by this
Room delivery, and can prevent the pressure oil of the cylinder chamber towards this second enter oilhole adverse current.
The present invention has an Oil-pressure clamping head of leak-stopping oil ring, one perpendicular to the radial direction of the first ring wall of the leak-stopping oil ring
First thickness is greater than second ring wall perpendicular to a second thickness of the radial direction.
The beneficial effects of the present invention are: using the structure design of the leak-stopping oil ring, when the rotating shaft unit is in static shape
Under state, which is thickly supported by energy oil when the pressure oil stopper and terminates in the rotating shaft unit, should when rotating shaft unit operating
Generated between second ring wall and the rotating shaft unit it is micro- contact, be avoided that abrasion and because friction and cause high fever to generate.
Detailed description of the invention
Fig. 1 is a combination section of Oil-pressure clamping head one embodiment that the present invention has leak-stopping oil ring, and explanation is located at
One operating condition；
Fig. 2 is a partial enlargement diagram of Fig. 1；
Fig. 3 is a partial enlargement diagram of Fig. 2；
One operation chart of Fig. 4 embodiment, a collet chuck unit can be to one by pressure oil driving when illustrating to shut down
A workpiece carries out pine oil state；
Fig. 5 is a partial enlargement diagram of Fig. 4；
Another operation chart of Fig. 6 embodiment, the collet chuck unit can be to this by pressure oil driving when illustrating to shut down
Workpiece carries out tightening state；
Fig. 7 is a partial enlargement diagram of Fig. 6.
Specific embodiment
The following describes the present invention in detail with reference to the accompanying drawings and embodiments.
Refering to fig. 1, Fig. 2 and Fig. 3, the present invention have one embodiment of the Oil-pressure clamping head of leak-stopping oil ring, for clamping extremely
A few workpiece (not shown), the Oil-pressure clamping head include pedestal 10, one axle bed 20, one rotating shaft unit 30, Shuo Gezhi
Be sheathed between the axle bed 20 and the rotating shaft unit 30 respectively 60, one, bearing of 40, one, oil leak ring collet chuck unit 50, two
First check (non-return) valve 70 and second check (non-return) valve 80.
The pedestal 10 has medial surface 11, one for capable of defining an inner hole 111 in contrast to the medial surface 11
Lateral surface 12, one are connected to the first guide hole 13 of the medial surface 11 by the lateral surface 12 and one is staggered with first guide hole 13
It is arranged and can be conducted to by the medial surface 11 second guide hole 14 of lateral surface 12, which is arranged along an axis L.
The axle bed 20 is fixed and is installed in the inner hole 111 of the pedestal 10, and with one perpendicular to the medial surface
11 and the first side 21, one that extends along a radial Y perpendicular to axis L by the first side 21 be connected to this first
The first of guide hole 13 enter oilhole 22, one with this first enter oilhole 22 be arranged in a staggered manner and be connected to the first side 21 and this second
Second between guide hole 14 enters oilhole 23, several recessed by the first side 21 and be located at this along radial direction Y and first enter oil
22 two sides of hole and second first chase 24 for entering 23 two sides of oilhole, positioned at this first enter oilhole 22 and this second enter oilhole 23 it
Between two the first chases 24 interconnect.First chase 24 is circle.
The rotating shaft unit 30 extends along axis L, is able to rotate and is located in inside the axle bed 20, includes a main body
301 and a driving wheel seat 302 for being fixedly arranged on 301 side of main body, it is generated between the main body 301 and the driving wheel seat 302
One cylinder chamber 303.The main body 301 is with one relative to the first side 21 and along the second side 31, one of radial direction Y extension
It is a be connected to this first enter between oilhole 22 and the cylinder chamber 303 first draw oil duct 32, one and first draw oil duct 32 with this and be staggered
Be arranged and be connected to this second enter between oilhole 23 and the cylinder chamber 303 second draw oil duct 33 (cooperation ginseng Fig. 6 and Fig. 7), several
It is recessed by the second side 31 and be located at this along radial direction Y and first draw 32 two sides of oil duct and this second draws 33 two sides of oil duct
Second chase 34 first draws oil duct 32 and this second draws two the second chases 34 between oil duct 33 and interconnect, institute positioned at this
State the second chase 34 respectively defined jointly by a ditch bottom surface 341 and intersection linking in the ditch side 342 of the ditch bottom surface 341 and
At second chase 34 is circle.This first draw oil duct 32 be connected to the cylinder chamber 303 port and this second draw oil duct 33 company
The port for passing through the cylinder chamber 303 respectively corresponds axis L and is set to the two sides of the cylinder chamber 303.And it in the first side 21 and is somebody's turn to do
Between second side 31 generate one can for pressure oil stream lead to gap 90, the gap 90 be connected to this first enter oilhole 22, should
Second enter oilhole 23, this first draw oil duct 32 and this second draws oil duct 33.In addition, corresponding this first draws oil duct 32, in the cylinder chamber
303 and this second draw and be equipped with a first back oil road (not shown) between oil duct 33, corresponding this second draws oil duct 33, in the cylinder chamber
303 and this first draw and also be provided with a second back oil road (not shown) between oil duct 32.
As shown in Fig. 3,5,7, the leak-stopping oil ring 40 is circle, is respectively arranged in the first side 21 and the second side
Between face 31, and respectively with one across the gap 90 and by the first side 21 extend to the second side 31 basal wall 41,
One is connected to the basal wall 41 and wherein side and is fixed on the first ring wall 42, one of the axle bed 20 to be connected to the basal wall 41 another
Side and the second ring wall 43 adjacent to the rotating shaft unit 30, the basal wall 41, first ring wall 42 and the common boundary of the second ring wall 43
The oil duct 44 that can be connected to the gap 90 is made, first ring wall 42 distinguishes build-in in first chase 24, described
Second ring wall 43 is sheathed on respectively in second chase 34, and it is right that the width of the corresponding radial direction Y of second ring wall 43 is less than institute
The width for the second chase 34 answered, and first ring wall 42 perpendicular to radial direction Y a first thickness t1 be greater than this second
A second thickness t2 of the ring wall 43 perpendicular to radial direction Y.It is first to draw oil duct 32 at this and closely should in addition, in the present embodiment
The port two sides of second side 31 are respectively equipped with a leak-stopping oil ring 40, at second end for drawing the nearly second side 31 of oil duct 33
Mouthful two sides are respectively equipped with a leak-stopping oil ring 40, first draw oil duct 32 and this second draws two leak-stoppings between oil duct 33 positioned at this
Oil ring 40 links into an integrated entity, and the two leak-stopping oil rings 40 to link into an integrated entity also each have one in contrast to the oil duct 44
Terminal surface 45 and a cancave cambered surface 46 recessed by the terminal surface 45, the cancave cambered surface of the two leak-stopping oil rings 40 to link into an integrated entity
46 linkings can reduce the area of the terminal surface 45 using the setting of the cancave cambered surface 46 at semicircular arc-shaped.In the present embodiment
In, the leak-stopping oil ring for also distinguishing first two sides for entering oilhole 22 is respectively the first outer ring 411, the first middle ring 412, this second enters
The leak-stopping oil ring of 23 two sides of oilhole is respectively the second middle ring 421, and the second inner ring 422, the first middle ring 412 and the second middle ring 421 connect
It is connected into one.
The collet chuck unit 50 has a stopper seat 51 being sheathed in the cylinder chamber 303, the collet chuck unit 50 and the main body
301 can cooperate (not shown, the collet chuck unit 50, the main body 301 and axis with a shaft-cup, a collet chuck, a pull rod respectively
Lid, collet chuck, the structure of pull rod cooperation and operating principle are the prior art, as TaiWan, China certificate number I425997 Patent Case is taken off
Show, no longer add to illustrate herein), the stopper seat 51 by pressure oil driving can interlock the shaft-cup, the collet chuck and the pull rod and
The workpiece can be tightened or pine oil.
First check (non-return) valve 70, which is installed on the inside of main body 301 of the rotating shaft unit 30 and is installed on this, first draws oil duct 32
On, which allows pressure oil unidirectionally first to be entered oilhole 22 by this and be sent towards the cylinder chamber 303, and can prevent the cylinder chamber
303 pressure oil first enters the adverse current of oilhole 22 towards this.
Second check (non-return) valve 80, which is installed on the inside of main body 301 of the rotating shaft unit 30 and is installed on this, second draws oil duct 33
On, which allows pressure oil unidirectionally second to be entered oilhole 23 by this and be sent towards the cylinder chamber 303, and can prevent the cylinder chamber
303 pressure oil second enters the adverse current of oilhole 23 towards this.(structure and movement of first check (non-return) valve 70 and second check (non-return) valve 80 are former
Reason is the prior art, as disclosed in TaiWan, China certificate number I425997, the Patent Cases such as No. I535959, is no longer added herein
It is bright)
For another example shown in Fig. 1 and Fig. 2, Fig. 3, the Oil-pressure clamping head is shown in an operating condition, at this point, pressure oil was not from should
First guide hole 13, second guide hole 14 import, so, the leak-stopping oil ring 40 be not all under pressure yet oil effect, at this
First enters the first outer ring 411 of 22 two sides of oilhole, the first middle ring 412, and in second second middle ring for entering 23 two sides of oilhole
421, the second inner ring 422 all remain stationary state, and second ring wall 43 will not generate elasticity relative to first ring wall 42
Biased, there are gaps between second ring wall 43 and corresponding ditch side 342, then when the driving wheel seat 302 is driven by external force
It is described when moving and make the rotating shaft unit 30 is whole to rotate together with the collet chuck unit 50, workpiece, and carrying out the processing operation of workpiece
Second ring wall 43 of leak-stopping oil ring 40 will not generate excessive friction with ditch bottom surface 341, the ditch side 342 of second chase 34,
Friction, heating can be prevented, and then slows down aging and prolongs the service life.
Again as shown in Figure 4, Figure 5, when pressure oil (as the dotted line arrows) from first guide hole 13 importing, via this first
Enter that oilhole 22, the gap 90, this first draws oil duct 32, and when pushing away first check (non-return) valve 70 of pulling in opening, can smoothly import the cylinder
In room 303, pressure oil will push the stopper seat 51 towards the movement of the right side of Fig. 4, and the workpiece (not shown) can be made to reach pine oil purpose,
It just can be carried out replacement workpiece.In this case, such as Fig. 5, pressure oil by this first enter oilhole 22 and be directed into gap 90 while,
Also can radially Y seepage flow is to being located in first oil duct 44 of the leak-stopping oil ring 40 for entering 22 two sides of oilhole, and pressure oil meeting
Lesser second ring wall 43 of stopper thickness generates elastic biased (at this point, first entering oilhole 22 at this towards corresponding ditch side 342
First outer ring 411 of two sides, the first middle ring 412 also can follow first middle ring 412 to produce by pressure oil stopper, the second middle ring 421
Raw biased), then generation between second ring wall 43 and corresponding ditch bottom surface 341, ditch side 342 can be made closely to stick to, and
The effect of Drain Resistance is generated, so can prevent pressure oil from second entering oilhole 23 toward this, second drawing the adverse current of oil duct 33.Meanwhile it depositing originally
Be 51 right side of the space of stopper seat and pressure be less than this first enter oilhole 22, first draw oil pressure in oil duct 32 backwards to pressure
Oil can flow back (see shown in Fig. 5 imaginary line arrow) along the first back oil road (not shown), this pressure is lesser backwards to pressure oil
Can stopper be located at this and second enter such as the second inner ring 422 of leak-stopping oil ring 40 of the wherein side of oilhole 23 (see Fig. 5 imaginary line arrow institute
Show), it can prevent pressure oil from generating leakage along the gap 90.When pressure oil stops being imported by first guide hole 13, this first stops
Inverse valve 70 can revert back to closed state again, and cut off this and first draw oil duct 32, can prevent the pressure oil of the cylinder chamber 303 towards this first
Enter 22 adverse current of oilhole.The second ring wall 43 positioned at the first leak-stopping oil ring 40 for entering 22 two sides of oilhole is no longer influenced by pressure oil oil pressure
Effect, using itself material act on, and can by Fig. 5 replying state at Fig. 3 state.
Again as shown in Figure 6, Figure 7, when pressure oil (as the dotted line arrows) from second guide hole 14 importing, via this second
Enter that oilhole 23, the gap 90, this second draws oil duct 33, and when pushing away second check (non-return) valve 80 of pulling in opening, can smoothly import the cylinder
In room 303, pressure oil will push the stopper seat 51 towards the movement of the left side of Fig. 6 and Fig. 7, and the workpiece (not shown) can be made to reach clamping
Purpose can prepare to carry out processing operation to workpiece.In this case, pressure oil second is entered oilhole 23 and is directed into the gap by this
While 90, also can radially Y seepage flow to being located in second oil duct 44 of the leak-stopping oil ring 40 for entering 23 two sides of oilhole, and
Pressure oil can lesser second ring wall 43 of stopper thickness towards corresponding ditch side 342 generate elastic biased (at this point, this second
Enter the second inner ring 422 of 23 two sides of oilhole, the second middle ring 421 can by pressure oil stopper, the first middle ring 412 also and then this in second
Ring 421 generates biased), it can make to generate close patch between second ring wall 43 and corresponding ditch bottom surface 341, ditch side 342
It supports, and generates the effect of Drain Resistance, so can prevent pressure oil from first entering oilhole 22 toward this, first drawing the adverse current of oil duct 32.Meanwhile it is former
Originally it is present in 51 leftward space of stopper seat and pressure and is less than this and second enters oilhole 23, second draws oil pressure in oil duct 33 backwards
Pressure oil can flow back (see shown in Fig. 7 imaginary line arrow) along the second back oil road (not shown), this pressure is lesser backwards to pressure
Oil also can stopper be located at this and first enter such as the first outer ring 411 of leak-stopping oil ring 40 of the wherein side of oilhole 22 (see Fig. 7 imaginary line arrow
Shown in head), it can prevent pressure oil from generating leakage along the gap 90.It, should when pressure oil stops being imported by second guide hole 14 again
Second check (non-return) valve 80 can reply closed state again, and cut off this and second draw oil duct 33, can prevent the pressure oil of the cylinder chamber 303 towards this
Second enters 23 adverse current of oilhole.The second ring wall 43 positioned at the second leak-stopping oil ring 40 for entering 23 two sides of oilhole is no longer influenced by pressure oil
The effect of oil pressure, using itself material act on, and can by Fig. 7 replying state at Fig. 3 state.
Therefore, Oil-pressure clamping head of the invention draws in the case where the rotating shaft unit is in stationary state (shutdown) using along the gap 90
The second ring wall 43 of leak-stopping oil ring 40 described in the pressure stopper of the pressure oil of the oil duct 44 is flow to relative to first ring wall
42 generate swing in second chase 34, i.e., generate elastic biased, energy towards corresponding ditch bottom surface 341, ditch side 342
So that the second ring wall 43 of the leak-stopping oil ring 40 is resisted against corresponding ditch side 342, resistance is generated between the rotating shaft unit 30
The effect of leakage, and be not necessary to improve the pressure of pressure oil, second ring wall 43 and the shaft list of the leak-stopping oil ring 40 can be made
Reach the close purpose of oil between member 30.When the rotating shaft unit 30 operating, between second ring wall 43 and the rotating shaft unit 30 not
It has excessive friction and leads to the situation of high temperature, abrasion and aging can be slowed down.
In addition, being located at this first draws oil duct 32 and this second draws two between the oil duct 33 leak-stopping oil rings to link into an integrated entity
40, it is connected using the cancave cambered surface 46 at semicircular arc-shaped, it is possible to reduce the area of the terminal surface 45 can make described second
Ring wall 43 generates more flexible when the movement of elastic biased.
In conclusion the present invention has the Oil-pressure clamping head of leak-stopping oil ring, it is easy that overall structure is simple, manufacture assembles, and really
The purpose of the present invention can be reached in fact.
Claims (8)
1. a kind of Oil-pressure clamping head with leak-stopping oil ring, for clamping an at least workpiece, which includes pedestal, one
A axle bed, a rotating shaft unit, several leak-stopping oil rings and a collet chuck unit, the Oil-pressure clamping head are characterized in that:
The axle bed is installed on the base interior, and has a first side；
The rotating shaft unit extends along axis, is able to rotate and is located in inside the axle bed, and have one relative to this first
The second side of side generates the gap that can lead to for pressure oil stream between the first side and the second side；
The leak-stopping oil ring, is installed between the first side and the second side, and respectively have one across the gap and by
The first side extend to the basal wall of the second side, one be connected to the basal wall and wherein side and be fixed on the first of the axle bed
Ring wall, one be connected to the basal wall other side and the second ring wall adjacent to the rotating shaft unit, the basal wall, first ring wall with should
Second ring wall defines the oil duct that can be connected to the gap jointly, and when shutdown, the pressure of the oil duct is drained to along the gap
It is oily can the second ring wall described in stopper relative to first ring wall generate swing, second ring wall can oil it is close and support and terminate in this turn
Axle unit；
The collet chuck unit, is sheathed on inside the rotating shaft unit, can be tightened to the workpiece or pine oil by pressure oil driving.
2. according to claim 1 with the Oil-pressure clamping head of leak-stopping oil ring, it is characterised in that: the axle bed also has a connection
In the first of the first side enter oilhole, one with this first enter that oilhole is arranged in a staggered manner second enter oilhole, the rotating shaft unit is also
Include the driving wheel seat that a main body and one are fixedly arranged on the body side, generates one between the main body and the driving wheel seat
A cylinder chamber, the second side are set to the main body, which also there is one to be connected to this first enter between oilhole and the cylinder chamber
First draw oil duct and one and this first draw oil duct be arranged in a staggered manner and be connected to this second enter between oilhole and the cylinder chamber second
Draw oil duct, this first draws oil duct and this second draws oil duct and be connected to the Single port of the cylinder chamber and respectively correspond the axis and be set to the cylinder
The two sides of room.
3. according to claim 2 with the Oil-pressure clamping head of leak-stopping oil ring, it is characterised in that: in first two sides for drawing oil duct
One leak-stopping oil ring is respectively installed, one leak-stopping oil ring is respectively installed in second two sides for drawing oil duct.
4. according to claim 3 with leak-stopping oil ring Oil-pressure clamping head, it is characterised in that: positioned at this first draw oil duct with should
The second two leak-stopping oil rings drawn between oil duct link into an integrated entity.
5. according to claim 4 with leak-stopping oil ring Oil-pressure clamping head, it is characterised in that: the first side of the axle bed with should
Respectively along radially extending perpendicular to the axis, which also has several by first side second side of rotating shaft unit
Face is recessed and is located at this and first enters oilhole two sides and second first chase for entering oilhole two sides, first enters oilhole positioned at this
Second enter two the first chases between oilhole with this and interconnect, the first ring wall difference build-in of the leak-stopping oil ring is in described
First chase, the main body of the rotating shaft unit also have several recessed by the second side and are located at this and first draw oil duct two sides
With second second chase for drawing oil duct two sides, first draw oil duct and this second draws two the second chases between oil duct positioned at this
It interconnects, the second ring wall of the leak-stopping oil ring is sheathed on respectively in second chase, and second chase is respectively by one
Ditch bottom surface and an intersection linking are defined jointly in the ditch side of the ditch bottom surface, and the second ring wall of the leak-stopping oil ring is corresponding
The width of the radial direction is less than the width of the second corresponding chase, and second ring wall can be respectively described by the pressure oil stopper
Swing is generated in second chase, enables the second ring wall oil close and is resisted against corresponding ditch side.
6. according to claim 5 with the Oil-pressure clamping head of leak-stopping oil ring, it is characterised in that: the Oil-pressure clamping head also includes one
It is installed on the body interior of the rotating shaft unit and is installed on this and first draw the first check (non-return) valve on oil duct, which allows
Pressure oil unidirectionally first is entered oilhole and is sent towards the cylinder chamber by this, and the pressure oil of the cylinder chamber can be prevented towards this first to enter oilhole inverse
Stream.
7. according to claim 6 with the Oil-pressure clamping head of leak-stopping oil ring, it is characterised in that: the Oil-pressure clamping head also includes one
It is installed on the body interior of the rotating shaft unit and is installed on this and second draw the second check (non-return) valve on oil duct, which allows
Pressure oil unidirectionally second is entered oilhole and is sent towards the cylinder chamber by this, and the pressure oil of the cylinder chamber can be prevented towards this second to enter oilhole inverse
Stream.
8. according to claim 1 to the Oil-pressure clamping head described in any claim in 7 with leak-stopping oil ring, it is characterised in that: institute
The first ring wall for stating leak-stopping oil ring is greater than second ring wall perpendicular to the one of the radial direction perpendicular to a first thickness of the radial direction
A second thickness.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710348435.9A CN108942280B (en) | 2017-05-17 | 2017-05-17 | Oil pressure chuck with oil leakage prevention ring |
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| CN108942280B CN108942280B (en) | 2020-06-02 |
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| DE3537686A1 (en) * | 1985-10-23 | 1987-04-23 | Roehm Guenter H | OIL HYDRAULIC ACTUATED TENSION CYLINDER FOR TENSIONING DEVICES ON A ROTATING SPINDLE |
| JPH08150539A (en) * | 1994-11-25 | 1996-06-11 | Nachi Fujikoshi Corp | Oil hole holder |
| CN2334532Y (en) * | 1998-02-24 | 1999-08-25 | 江瑞昌 | Improved hydraulic (pneumatic) chuck |
| TW557239B (en) * | 2002-08-22 | 2003-10-11 | Chien Yih Machinery Co Ltd | Hydraulic chuck |
| TW200500164A (en) * | 2003-06-19 | 2005-01-01 | xuan-long Wu | Ultra-thin hydraulic chuck |
| CN200995288Y (en) * | 2007-02-08 | 2007-12-26 | 洪荣丰 | Pressure and oil-pressure rotary gripping head |
| CN102198596A (en) * | 2010-03-23 | 2011-09-28 | 吴炫隆 | Oil pressure chuck |
| CN202510559U (en) * | 2012-03-30 | 2012-10-31 | 亨利安管理咨询（青岛）有限公司 | Novel sealing groove device for preventing slewing bearing from leaking oil |
| CN103801946A (en) * | 2012-11-07 | 2014-05-21 | 吴炫隆 | Simultaneous moving bidirectional oil pressure chuck device and dual-machining system with same power source |
| CN204025211U (en) * | 2014-06-06 | 2014-12-17 | 浙江京速机床附件有限公司 | Ultrathin high speed hollow rotating oil hydraulic cylinder |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3100424A (en) * | 1959-09-10 | 1963-08-13 | Dubied & Cie Sa E | Fluid connection for a rotating cylinder hydraulic motor |
| DE2919180A1 (en) * | 1979-05-12 | 1980-12-04 | Forkardt Paul Kg | DEVICE FOR SUPPLYING PRESSURE OIL FROM A STATIONARY PRESSURE OIL SOURCE TO A ROTATING SHAFT |
| DE3537686A1 (en) * | 1985-10-23 | 1987-04-23 | Roehm Guenter H | OIL HYDRAULIC ACTUATED TENSION CYLINDER FOR TENSIONING DEVICES ON A ROTATING SPINDLE |
| JPH08150539A (en) * | 1994-11-25 | 1996-06-11 | Nachi Fujikoshi Corp | Oil hole holder |
| CN2334532Y (en) * | 1998-02-24 | 1999-08-25 | 江瑞昌 | Improved hydraulic (pneumatic) chuck |
| TW557239B (en) * | 2002-08-22 | 2003-10-11 | Chien Yih Machinery Co Ltd | Hydraulic chuck |
| TW200500164A (en) * | 2003-06-19 | 2005-01-01 | xuan-long Wu | Ultra-thin hydraulic chuck |
| CN200995288Y (en) * | 2007-02-08 | 2007-12-26 | 洪荣丰 | Pressure and oil-pressure rotary gripping head |
| CN102198596A (en) * | 2010-03-23 | 2011-09-28 | 吴炫隆 | Oil pressure chuck |
| CN202510559U (en) * | 2012-03-30 | 2012-10-31 | 亨利安管理咨询（青岛）有限公司 | Novel sealing groove device for preventing slewing bearing from leaking oil |
| CN103801946A (en) * | 2012-11-07 | 2014-05-21 | 吴炫隆 | Simultaneous moving bidirectional oil pressure chuck device and dual-machining system with same power source |
| CN204025211U (en) * | 2014-06-06 | 2014-12-17 | 浙江京速机床附件有限公司 | Ultrathin high speed hollow rotating oil hydraulic cylinder |
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|---|---|
| CN108942280B (en) | 2020-06-02 |
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