CN205478610U - Lathe headstock hydrocushion system - Google Patents
Lathe headstock hydrocushion system Download PDFInfo
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- CN205478610U CN205478610U CN201620162699.6U CN201620162699U CN205478610U CN 205478610 U CN205478610 U CN 205478610U CN 201620162699 U CN201620162699 U CN 201620162699U CN 205478610 U CN205478610 U CN 205478610U
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Abstract
The utility model provides a lathe headstock hydrocushion system, the oil feed oil circuit that is formed by connecting including oil tank, oil pump connection, first check valve, overflow valve, three -position four -way electromagnetic valve, first hydraulically controlled check valve, a one -way throttle valve to reach three -position four -way electromagnetic valve, two way oil return oil circuits that four way solenoid valve, first hydraulically controlled check valve, the one -way liquid of second accuse valve, the 2nd one -way throttle valve were formed by connecting. Two support cylinders of this hydrocushion system have two way oil return oil circuits, an of the same kind oil feed oil circuit and all the way from the oil absorption way, consequently more smooth and easy of relative and ordinary its fuel feeding of hydrocushion system sufficient, oil extraction more, the system can remain constant pressure throughout moreover, the extra load of two directions about the hydro -cylinder can not produce in the up -and -down motion, can show better conformability can, but also can reach energy -conserving effect of cooling down.
Description
Technical field
This utility model relates to machine tooling technical field, particularly to a kind of hydraulic system for being balanced lathe headstock gravity.
Background technology
Longmen machine tool; horizontal Machining centers; the machining tools such as vertical machining centre are in the course of the work; need to use driven by motor main spindle box to move up and down; in order to reduce the lopsided wear of main shaft lead screw pair; keep machine tool accuracy and the stationarity of motion, improve the life-span of lead screw pair, it will usually balance system is set on lathe the main spindle box of lathe is come the weight of balancing main shaft case.The quality of balance has important impact to machine tool capability.Balance mode for lathe headstock has varied, such as servomotor amplification balance, counterweight balance, oil pressure balance etc., and various balance modes have the pluses and minuses of oneself.
Chinese utility model patent (patent No.: 201110429267.9) discloses the bascule of a kind of main spindle box, for realizing the balance of lathe headstock, lathe includes box column, wherein, including being arranged on the hydraulic jack of box column face portion, described hydraulic jack is arranged along the vertical direction of box column；Also including supporting parts, described supporting parts are arranged on the piston rod end of described hydraulic jack, and lathe headstock is connected with described hydraulic jack by described supporting parts；Described hydraulic jack is positioned at the centre position of box column face portion；In main spindle box uphill process, described hydraulic jack rod chamber oil-feed, described piston rod produces the pulling force gravity with balancing main shaft case；During main spindle box declines, described hydraulic jack rod chamber oil extraction, described piston rod produces the gravity of tension balanced main spindle box.This bascule either fuel feeding still has the most all only has an oil circuit to be so possible to occur for problems such as shortage of oil, oil extraction not smooth, imbalance of pressure, thus it cannot be guaranteed that lathe can normally work in running.
Utility model content
The shortcoming of prior art in view of the above, the purpose of this utility model is to provide the lathe headstock hydraulic balance system that a kind of fuel feeding is sufficient, oil extraction is unobstructed.
For achieving the above object and other relevant purposes, this utility model provides a kind of lathe headstock hydraulic balance system, it includes a fuel tank, described fuel tank is connected with oil pump by oil pipe, described oil pump and the first check valve and an overflow valve connect, the P mouth of described first check valve and a three position four-way electromagnetic valve connects, the A mouth of described three position four-way electromagnetic valve and the oil-in of the first hydraulic control one-way valve connect, the oil-out of described first hydraulic control one-way valve and the first one-way throttle valve connect, and the first one-way throttle valve is connected with the first support cylinder, the second support cylinder respectively；The O mouth of described three position four-way electromagnetic valve is connected with described fuel tank by oil pipe, the B mouth of described three position four-way electromagnetic valve and the P mouth of two position four-way solenoid valves connect, the A mouth of described two position four-way solenoid valves respectively with the first hydraulic control one-way valve, the hydraulic control mouth of the second hydraulic control one-way valve connects, the O mouth of described two position four-way solenoid valves is connected with described fuel tank by oil pipe, the B mouth of described two position four-way solenoid valves and the oil-in of the second hydraulic control one-way valve connect, the oil-out of described second hydraulic control one-way valve and the second one-way throttle valve connect, second one-way throttle valve respectively with the first support cylinder, second support cylinder connects.
Preferably, it also includes that a self-priming oil circuit, described self-priming oil circuit include the second check valve, and the oil-in of described second check valve is connected with described fuel tank by oil pipe, and the oil-out of described second check valve is connected with the oil-in of described first check valve by oil pipe.
Preferably, the oil-in of described oil pump is also connected with a filter.
As mentioned above, lathe headstock hydraulic balance system of the present utility model has the advantages that two support cylinders of this hydraulic balance system have two-way oil return circuit, a road oil-feed oil circuit and a road self-priming oil circuit, therefore relative to common hydraulic balance system for its fuel feeding is more sufficient, oil extraction more smoothly, and system can remain constant pressure, oil cylinder will not produce the extra load of upper and lower both direction in up and down motion, preferable matching property can be shown, and the effect of energy-saving cool-down can also be reached.
Accompanying drawing explanation
Fig. 1 is the oil piping system figure of this utility model embodiment.
Element numbers explanation
1, fuel tank 2, filter 3, oil pump 4, overflow valve the 5, first check valve 6, three position four-way electromagnetic valve 7, oil gauge 8, two position four-way solenoid valve 9, choke valve 10 first hydraulic control one-way valve the 11, second hydraulic control one-way valve the 12, first one-way throttle valve the 13, second one-way throttle valve 14 first support cylinder the 15, second support cylinder 16, main spindle box 17, motor the 18, second check valve.
Detailed description of the invention
By particular specific embodiment, embodiment of the present utility model being described below, those skilled in the art can be understood other advantages of the present utility model and effect easily by the content disclosed by this specification.
Refer to Fig. 1.Notice, structure depicted in this specification institute accompanying drawings, ratio, size etc., the most only in order to coordinate the content disclosed in description, understand for those skilled in the art and read, it is not limited to the enforceable qualifications of this utility model, therefore do not have technical essential meaning, the modification of any structure, the change of proportionate relationship or the adjustment of size, under not affecting effect that this utility model can be generated by and the purpose that can reach, all should still fall in the range of the technology contents disclosed in this utility model obtains and can contain.Simultaneously, in this specification cited as " on ", D score, "left", "right", the term of " middle " and " " etc., it is merely convenient to understanding of narration, and it is not used to limit the enforceable scope of this utility model, being altered or modified of its relativeness, changing under technology contents without essence, when being also considered as the enforceable category of this utility model.
As shown in Figure 1, this utility model provides a kind of lathe headstock hydraulic balance system, this hydraulic balance system includes first support cylinder the 14, second support cylinder 15, first support cylinder the 14, second support cylinder 15 is for when motor 17 drives main spindle box 16 to move to appropriate location, main spindle box 16 is supported, with the weight of balancing main shaft case 16.This hydraulic balance system mainly includes a fuel tank 1, fuel tank 1 is connected with oil pump 3 by oil pipe, oil pump 3 is connected with the first check valve 5 and an overflow valve 4, the oil-out of the first check valve 5 is connected with the P mouth of three position four-way electromagnetic valve 6, the A mouth of three position four-way electromagnetic valve 6 and the oil-in of the first hydraulic control one-way valve 10 connect, oil-out and first one-way throttle valve 12 of the first hydraulic control one-way valve 10 connect, and the first one-way throttle valve 12 is connected with first support cylinder the 14, second support cylinder 15 respectively.Be additionally provided with a self-priming oil circuit in the side of oil pump 3, this self-priming oil circuit includes the second check valve 18, and the oil-in of the second check valve 18 is connected with fuel tank 1 by oil pipe, and the oil-out of the second check valve 18 is connected by the oil-in of oil pipe and the first check valve 5.
Above-mentioned oil circuit is the oil-feed oil circuit of first support cylinder the 14, second support cylinder 15.When oil cylinder rises, the YA1 side of three position four-way electromagnetic valve 6 obtains electric, three position four-way electromagnetic valve 6 works in left position, and hydraulic oil flow is to being followed successively by: oil pump the 3, first check valve 5, three position four-way electromagnetic valve 6 P mouth to A mouth, the first hydraulic control one-way valve the 10, first one-way throttle valve the 12, first support cylinder 14 and the second support cylinder 15.When rapid increase, even if oil pump 3 fuel delivery is not enough, it is also possible to form self-priming oil circuit by the check valve in the second one-way throttle valve 1, supplemented, it is ensured that fuel feeding is sufficient.
The O mouth of three position four-way electromagnetic valve 6 is connected with fuel tank 1 by oil pipe, the B mouth of three position four-way electromagnetic valve 6 and the P mouth of two position four-way solenoid valves 8 connect, the A mouth of two position four-way solenoid valves 8 respectively with the first hydraulic control one-way valve 10, the hydraulic control mouth of the second hydraulic control one-way valve 11 connects, the O mouth of two position four-way solenoid valves 8 is connected with fuel tank 1 by oil pipe, the B mouth of two position four-way solenoid valves 8 and the oil-in of the second hydraulic control one-way valve 11 connect, oil-out and second one-way throttle valve 13 of the second hydraulic control one-way valve 11 connect, second one-way throttle valve 13 respectively with the first support cylinder 14, second support cylinder 15 connects.
Above-mentioned oil circuit is the oil return circuit of first support cylinder the 14, second support cylinder 15.When oil cylinder declines, the YA2 side of three position four-way electromagnetic valve 6 obtains YA3 side electric, two position four-way solenoid valves 8 and obtains electric, the right position of three position four-way electromagnetic valve 6 works, two position four-way solenoid valve 8 right position work, now hydraulic oil flow is to being followed successively by: oil pump the 3, first check valve 5, three position four-way electromagnetic valve 6 P mouth to B mouth, two position four-way solenoid valves 8 P mouth to A mouth, choke valve the 9, first hydraulic control one-way valve 10 and the hydraulic control mouth of the second hydraulic control one-way valve 11, thus the first hydraulic control one-way valve 10 and the second hydraulic control one-way valve 11 can be opened simultaneously.After first hydraulic control one-way valve 10 and the second hydraulic control one-way valve 11 are opened simultaneously, hydraulic oil in first support cylinder the 14, second support cylinder 15 starts oil return, wherein a road oil return flow to be: the first support cylinder 14 and second support cylinder the 15, first one-way throttle valve the 12, first hydraulic control one-way valve 10, three position four-way electromagnetic valve 6 A mouth to O mouth, fuel tank 1；The flow direction of another road oil return is: the B mouth of the first support cylinder 14 and second support cylinder the 15, second one-way throttle valve the 13, second hydraulic control one-way valve 11, two position four-way solenoid valve 8 is to O mouth, fuel tank 1.It is clear that during declining, have two oil return routes, through-flow section doubles, and is more beneficial for oil return, it is ensured that oil extraction is unobstructed.
Operationally, the desirable balance state computation of the weight that can balance on demand goes out the output loads of oil cylinder to this system, and then determines operating pressure P of oil cylinder, and is set up by overflow valve 4.Choke valve 9 is used for regulating the first required amount controlling oil of hydraulic control one-way valve the 10, second hydraulic control one-way valve 11.First one-way throttle valve the 12, first one-way throttle valve 13 forms back pressure when oil return, adjustable.Oil pump 3 is also connected with a filter 2 simultaneously, the impurity in filter 2 filterable oil.Second check valve 18 is also connected with an oil gauge 7, for measuring the pressure of hydraulic oil.When oil cylinder is failure to actuate, oil pump 3 may utilize the Median Function off-load of three position four-way electromagnetic valve 6, reduces energy consumption, reduces system heat generation.
Two support cylinders of this hydraulic balance system have two-way oil return circuit, a road oil-feed oil circuit and a road self-priming oil circuit, therefore relative to common hydraulic balance system for its fuel feeding is more sufficient, oil extraction more smoothly, and system can remain constant pressure, oil cylinder will not produce the extra load of upper and lower both direction in up and down motion, preferable matching property can be shown, and the effect of energy-saving cool-down can also be reached.So, this utility model effectively overcomes various shortcoming of the prior art and has high industrial utilization.
Above-described embodiment only illustrative principle of the present utility model and effect thereof, not for limiting this utility model.Above-described embodiment all can be modified under spirit and the scope of the present utility model or change by any person skilled in the art.Therefore, art has all equivalence modification or changes that usually intellectual is completed under without departing from the spirit disclosed in this utility model and technological thought such as, must be contained by claim of the present utility model.
Claims (3)
1. a lathe headstock hydraulic balance system, it is characterized in that: it includes a fuel tank (1), described fuel tank (1) is connected with oil pump (3) by oil pipe, described oil pump (3) is connected with the first check valve (5) and an overflow valve (4), the P mouth of described first check valve and a three position four-way electromagnetic valve (6) connects, the A mouth of described three position four-way electromagnetic valve (6) and the oil-in of the first hydraulic control one-way valve (10) connect, the oil-out of described first hydraulic control one-way valve (10) and the first one-way throttle valve (12) connect, first one-way throttle valve (12) respectively with the first support cylinder (14), second support cylinder (15) connects；The O mouth of described three position four-way electromagnetic valve (6) is connected with described fuel tank by oil pipe, the B mouth of described three position four-way electromagnetic valve (6) and the P mouth of two position four-way solenoid valves (8) connect, the A mouth of described two position four-way solenoid valves (8) respectively with the first hydraulic control one-way valve (10), the hydraulic control mouth of the second hydraulic control one-way valve (11) connects, the O mouth of described two position four-way solenoid valves (8) is connected with described fuel tank (1) by oil pipe, the B mouth of described two position four-way solenoid valves (8) and the oil-in of the second hydraulic control one-way valve (11) connect, the oil-out of described second hydraulic control one-way valve (11) and the second one-way throttle valve (13) connect, second one-way throttle valve (13) respectively with the first support cylinder (14), second support cylinder (15) connects.
Lathe headstock hydraulic balance system the most according to claim 1, it is characterized in that: it also includes a self-priming oil circuit, described self-priming oil circuit includes the second check valve (18), the oil-in of described second check valve (18) is connected with described fuel tank by oil pipe, and the oil-out of described second check valve (18) is connected with the oil-in of described first check valve (5) by oil pipe.
Lathe headstock hydraulic balance system the most according to claim 1, it is characterised in that: the oil-in of described oil pump (3) is also connected with a filter (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620162699.6U CN205478610U (en) | 2016-03-03 | 2016-03-03 | Lathe headstock hydrocushion system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620162699.6U CN205478610U (en) | 2016-03-03 | 2016-03-03 | Lathe headstock hydrocushion system |
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| Publication Number | Publication Date |
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| CN205478610U true CN205478610U (en) | 2016-08-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201620162699.6U Active CN205478610U (en) | 2016-03-03 | 2016-03-03 | Lathe headstock hydrocushion system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106736832A (en) * | 2017-02-23 | 2017-05-31 | 沈机集团昆明机床股份有限公司 | The balance control system of main spindle box or ram for lathe |
| CN108061066A (en) * | 2018-01-22 | 2018-05-22 | 无锡京华重工装备制造有限公司 | A kind of oil cylinder pressure-maintaining structure |
-
2016
- 2016-03-03 CN CN201620162699.6U patent/CN205478610U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106736832A (en) * | 2017-02-23 | 2017-05-31 | 沈机集团昆明机床股份有限公司 | The balance control system of main spindle box or ram for lathe |
| CN108061066A (en) * | 2018-01-22 | 2018-05-22 | 无锡京华重工装备制造有限公司 | A kind of oil cylinder pressure-maintaining structure |
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