CN105805078A - Compact type reinforcement oil cylinder used in numerical control machine tool milling head exchange device - Google Patents
Compact type reinforcement oil cylinder used in numerical control machine tool milling head exchange device Download PDFInfo
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- CN105805078A CN105805078A CN201410834703.4A CN201410834703A CN105805078A CN 105805078 A CN105805078 A CN 105805078A CN 201410834703 A CN201410834703 A CN 201410834703A CN 105805078 A CN105805078 A CN 105805078A
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Abstract
The present invention belongs to the technical field of oil cylinders, and specifically relates to a compact type reinforcement oil cylinder used in a numerical control machine tool milling head exchange device. The compact type reinforcement oil cylinder used in the numerical control machine tool milling head exchange device comprises a main oil cylinder, an auxiliary oil cylinder, a top cover and a connecting disc; the main oil cylinder, the auxiliary oil cylinder, the top cover and the connecting disc form an oil cylinder assembly provided with three working oil chambers; the three working oil chambers are integrated with three paths of oil inlet holes and three paths of backpressure exhaust vents; and a right piston, a middle piston, a left piston, a spacer bush and a push rod form a piston assembly provided with three pistons. The compact type reinforcement oil cylinder has the beneficial effects that oil pipe layout is largely simplified, combination with more reinforcement more than three levels is achieved, and the compact type reinforcement oil cylinder is small in radial dimension, compact in structure and convenient to use.
Description
Technical field
The invention belongs to oil cylinder technical field, be specifically related to a kind of compact boosting oil cylinder used in Digit Control Machine Tool milling head switch.
Background technology
In recent years, how the large-size numerical control machines such as CNC planer type milling machine (machining center), digital-control boring-milling machine, console model digital-control boring-milling machine have employed milling head automatic exchange technique, structure wherein used is all the device unclamped with butterfly spring tension milling head and oil cylinder compression butterfly spring, and the greatest drawback of this kind of structure is in that the oil cylinder radial dimension on the right is too big.Milling head switch is typically all and is arranged on inside the ram of lathe, and the maximum secting area of ram only 500 × 500mm, it is typically in 400 × below 400mm, in such narrow space, loading milling head switch 4 groups so big, middle also have main axle unit, certainly will have influence on the wall thickness of ram and the layout of reinforcement, and then affect the mechanical strength of ram, it is also possible to interfere with other parts simultaneously.
In this structure, the compression stress needed due to butterfly spring is about 5000kg, as improved the pressure of hydraulic system, although can reduce piston area and oil cylinder volume, but but the element of hydraulic system is changed to high voltage device, add cost；As being changed without high voltage device, by the service life of the safety in utilization and hydraulic system that reduce lathe.So, the pressure being typically on lathe hydraulic system and being suitable for is all below middle pressure, therefore in this structure, want reduction piston area and oil cylinder volume is comparatively difficult, it is typically all reduce the wall thickness of ram or reduce the reinforcement within ram, vacating space is in order to install the oil cylinder of large volume, but do so reduces the mechanical strength of ram undoubtedly, it is also possible to interfere with other parts.
Summary of the invention
The present invention is in order to make up the defect of prior art, radial dimension is little, compact conformation, hydraulic thrust power are big to provide one, it is adapted to be mounted within the ram of the Digit Control Machine Tool narrow spaces such as CNC planer type milling machine, digital-control boring-milling machine, console model digital-control boring-milling machine, at conventional hydraulic pressure operated within range, can not affect again the compact boosting oil cylinder used in Digit Control Machine Tool milling head switch of ram mechanical strength.
The present invention is achieved through the following technical solutions:
A kind of compact boosting oil cylinder used in Digit Control Machine Tool milling head switch, including master cylinder, auxiliary oil cylinder, upper cover, connection dish, described master cylinder, auxiliary oil cylinder, upper cover and connection dish constitute a cylinder component having three working oil chambers, three working oil chambers are integrated with three road fuel feed holes and three tunnel back pressure steam vents, right piston, middle piston, left piston, spacer, push rod one piston component having three pistons of composition, piston component is arranged on the coaxial position of cylinder component, three piston components lay respectively at the right working chamber of cylinder component, middle working chamber, in left working chamber, hydraulic oil enters Hou Fen tri-road fuel feed hole from oil-in and enters the working chamber of oil cylinder: three road hydraulic oil are respectively through oil-in, oilhole seven enters right working chamber；Through oil-in, oilhole one, oilhole two, oilhole three, enter left working chamber；Working chamber in oil-in, oilhole four, oilhole five, oilhole six, entrance, and feed pressure oil to three working chambers simultaneously, promote simultaneously right piston, middle piston and left piston to the left together with move, push rod transfers the pressure on the depression bar of butterfly spring, butterfly spring is compressed, milling head is unloaded from lathe, due on same piston rod, connect three pistons so that it is working thrust adds several times than single piston.
Further, described back pressure steam vent includes venthole one, venthole two, venthole three, venthole four, venthole five and venthole six, venthole three and the venthole that venthole six is back pressure cavity one, venthole one and the venthole that venthole two is back pressure cavity two, venthole four and the venthole that venthole five is back pressure cavity three.
Further, covering and be provided with gas vent on described, gas vent is provided with and unscrews formula vent valve, the air in hydraulic oil, can pass through vent valve, discharges via gas vent, after air is discharged, then tightens vent valve.
Further, described master cylinder has additional auxiliary oil cylinder by screw, the quantity of auxiliary oil cylinder and oil circuit, it is achieved more than the combination of three grades of bigger reinforcements.
Further, described right pistons end is provided with y-type seal ring.
Further, it is provided with sealing ring between described master cylinder and upper cover.
Further, described oilhole four is provided with plug screw three.
Further, described oilhole one is provided with plug screw one.
Further, described oilhole six is provided with plug screw four.
Further, described oilhole three is provided with plug screw two.
The invention has the beneficial effects as follows: a kind of compact boosting oil cylinder used in Digit Control Machine Tool milling head switch of the present invention, the design of its three roads fuel feed hole and three tunnel back pressure steam vents greatly simplifies oil pipe layout, only access oil-in with an oil inlet pipe, combined oil cylinder gets final product normal operation, due on same piston rod, connect three pistons, its working thrust adds several times than single piston, quantity and the oil circuit of auxiliary oil cylinder can also be increased according to demand simultaneously, realize the combination more than three grades of bigger reinforcements, reach radial dimension little, compact conformation, purpose easy to use.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the present invention is further illustrated.
Accompanying drawing 1 is the axial view of the present invention；
Accompanying drawing 2 is A-A sectional view；
Accompanying drawing 3 is D-D sectional view；
Accompanying drawing 4 is B-B sectional view；
Accompanying drawing 5 is C-C sectional view；
In figure, 1 master cylinder, 2 right piston rods, 3 upper covers, 4 oil-ins, 5 vent valves, 6 gas vents, 7Y RunddichtringO, piston in 8, 9 left pistons, 10 push rods, 11 connection dishes, 12 screws, 13 oilholes one, 14 plug screws one, 15 oilholes two, 16 plug screws two, 17 oilholes three, 18 right working chambers, 19 back pressure cavity one, working chamber in 20, 21 back pressure cavity two, 22 left working chambers, 23 back pressure cavity three, 24 spacers, 25 oilholes four, 26 plug screws three, 27 oilholes five, 28 plug screws four, 29 oilholes six, 30 sealing rings, 31 ventholes one, 32 ventholes two, 33 ventholes three, 34 ventholes four, 35 ventholes five, 36 auxiliary oil cylinders, 37 oilholes seven, 38 ventholes six.
Detailed description of the invention
Accompanying drawing 1-5 is a kind of specific embodiment of the present invention.A kind of compact boosting oil cylinder used in Digit Control Machine Tool milling head switch of this invention, accompanying drawing 1-5 is a kind of specific embodiment of the present invention.nullA kind of compact boosting oil cylinder used in Digit Control Machine Tool milling head switch of this invention，Including master cylinder 1、Auxiliary oil cylinder 36、Upper cover 3、Connection dish 11，Described master cylinder 1、Auxiliary oil cylinder 36、Upper cover 3 and connection dish 11 constitute a cylinder component having three working oil chambers，Three working oil chambers are integrated with three road fuel feed holes and three tunnel back pressure steam vents，Right piston 2、Middle piston 8、Left piston 9、Spacer 24、Push rod 10 forms a piston component having three pistons，Piston component is arranged on the coaxial position of cylinder component，Three piston components lay respectively at the right working chamber 18 of cylinder component、Middle working chamber 20、In left working chamber 22，Hydraulic oil enters Hou Fen tri-road fuel feed hole from oil-in 4 and enters the working chamber of oil cylinder: three road hydraulic oil are respectively through oil-in 4、Oilhole 7 37 enters right working chamber 18；Through oil-in 4, oilhole 1, oilhole 2 15, oilhole 3 17, enter left working chamber 22；Working chamber 20 in oil-in 4, oilhole 4 25, oilhole 5 27, oilhole 6 29, entrance, and feed pressure oil to three working chambers simultaneously, promote simultaneously right piston 2, middle piston 8 and left piston 9 to the left together with move, push rod transfers the pressure on the depression bar of butterfly spring, butterfly spring is compressed, milling head is unloaded from lathe, due on same piston rod, connect three pistons so that it is working thrust adds several times than single piston.
Further, described back pressure steam vent includes venthole 1, venthole 2 32, venthole 3 33, venthole 4 34, venthole 5 35 and venthole 6 38, venthole 3 33 and the venthole that venthole 6 38 is back pressure cavity 1, venthole 1 and the venthole that venthole 2 32 is back pressure cavity 2 21, venthole 4 34 and the venthole that venthole 5 35 is back pressure cavity 3 23.
Further, described upper cover 3 is provided with gas vent 6, and gas vent 6 is provided with and unscrews formula vent valve 5, the air in hydraulic oil, can pass through vent valve 5, discharge via gas vent 6, after air is discharged, then tightens vent valve 5.
Further, described master cylinder 1 has additional auxiliary oil cylinder 36, the quantity of auxiliary oil cylinder 36 and oil circuit by screw 12, it is achieved more than the combination of three grades of bigger reinforcements.
Further, described right piston 2 end is provided with y-type seal ring 7.
Further, it is provided with sealing ring 30 between described master cylinder 1 and upper cover 3.
Further, described oilhole 4 25 is provided with plug screw 3 26.
Further, described oilhole 1 is provided with plug screw 1.
Further, described oilhole 6 29 is provided with plug screw 4 28.
Further, described oilhole 3 17 is provided with plug screw 2 16.
The present invention is not limited to above-mentioned embodiment, and anyone should learn that makes under the enlightenment of the present invention has same or like technical scheme with the present invention, each falls within protection scope of the present invention.
Technology that the present invention is not described in detail, shape, structure part are known technology.
Claims (4)
1. the compact boosting oil cylinder used in Digit Control Machine Tool milling head switch, it is characterized in that, including master cylinder, auxiliary oil cylinder, upper cover, connection dish, described master cylinder, auxiliary oil cylinder, upper cover and connection dish constitute a cylinder component having three working oil chambers, three working oil chambers are integrated with three road fuel feed holes and three tunnel back pressure steam vents, right piston, middle piston, left piston, spacer, push rod one piston component having three pistons of composition, piston component is arranged on the coaxial position of cylinder component, three piston components lay respectively at the right working chamber of cylinder component, middle working chamber, in left working chamber, hydraulic oil enters Hou Fen tri-road fuel feed hole from oil-in and enters the working chamber of oil cylinder: three road hydraulic oil are respectively through oil-in, oilhole seven enters right working chamber；Through oil-in, oilhole one, oilhole two, oilhole three, enter left working chamber；Working chamber in oil-in, oilhole four, oilhole five, oilhole six, entrance, and feed pressure oils to three working chambers simultaneously.
2. a kind of compact boosting oil cylinder used in Digit Control Machine Tool milling head switch according to claim 1, it is characterized in that: described back pressure steam vent includes venthole one, venthole two, venthole three, venthole four, venthole five and venthole six, venthole three and the venthole that venthole six is back pressure cavity one, venthole one and the venthole that venthole two is back pressure cavity two, venthole four and the venthole that venthole five is back pressure cavity three.
3. a kind of compact boosting oil cylinder used in Digit Control Machine Tool milling head switch according to claim 1, is characterized in that: cover on described and be provided with gas vent, and gas vent is provided with and unscrews formula vent valve.
4. a kind of compact boosting oil cylinder used in Digit Control Machine Tool milling head switch according to claim 1, is characterized in that: have additional auxiliary oil cylinder by screw on described master cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410834703.4A CN105805078A (en) | 2014-12-27 | 2014-12-27 | Compact type reinforcement oil cylinder used in numerical control machine tool milling head exchange device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410834703.4A CN105805078A (en) | 2014-12-27 | 2014-12-27 | Compact type reinforcement oil cylinder used in numerical control machine tool milling head exchange device |
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| Publication Number | Publication Date |
|---|---|
| CN105805078A true CN105805078A (en) | 2016-07-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410834703.4A Pending CN105805078A (en) | 2014-12-27 | 2014-12-27 | Compact type reinforcement oil cylinder used in numerical control machine tool milling head exchange device |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4817783A (en) * | 1988-05-03 | 1989-04-04 | Foster Raymond K | Single piston rod hydraulic drive |
| CN2236567Y (en) * | 1995-10-26 | 1996-10-02 | 袁焕春 | Multi-stage pressure cylinder |
| CN1313933A (en) * | 1998-07-08 | 2001-09-19 | Aro公司 | Actuator with approach pre-stroke and working stroke for operating a tool |
| CN101498197A (en) * | 2009-03-12 | 2009-08-05 | 中国海洋石油总公司 | Force reinforcing driving device for rotating guide drilling tool |
| JP2014152877A (en) * | 2013-02-12 | 2014-08-25 | Nippon Steel & Sumitomo Metal | Three-position operating actuator and permanent magnet-type eddy current reduction gear |
| CN203796662U (en) * | 2014-04-22 | 2014-08-27 | 宁波以赛亚气动成套有限公司 | Quadruple-strength air cylinder |
| CN204533028U (en) * | 2014-12-27 | 2015-08-05 | 山东普鲁特机床有限公司 | A kind of compact type boosting oil cylinder used in numerical control machine tool milling head switch |
-
2014
- 2014-12-27 CN CN201410834703.4A patent/CN105805078A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4817783A (en) * | 1988-05-03 | 1989-04-04 | Foster Raymond K | Single piston rod hydraulic drive |
| CN2236567Y (en) * | 1995-10-26 | 1996-10-02 | 袁焕春 | Multi-stage pressure cylinder |
| CN1313933A (en) * | 1998-07-08 | 2001-09-19 | Aro公司 | Actuator with approach pre-stroke and working stroke for operating a tool |
| CN101498197A (en) * | 2009-03-12 | 2009-08-05 | 中国海洋石油总公司 | Force reinforcing driving device for rotating guide drilling tool |
| JP2014152877A (en) * | 2013-02-12 | 2014-08-25 | Nippon Steel & Sumitomo Metal | Three-position operating actuator and permanent magnet-type eddy current reduction gear |
| CN203796662U (en) * | 2014-04-22 | 2014-08-27 | 宁波以赛亚气动成套有限公司 | Quadruple-strength air cylinder |
| CN204533028U (en) * | 2014-12-27 | 2015-08-05 | 山东普鲁特机床有限公司 | A kind of compact type boosting oil cylinder used in numerical control machine tool milling head switch |
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Application publication date: 20160727 |