CN204893541U - Hydraulic system of numerical control crankshaft milling machine - Google Patents
Hydraulic system of numerical control crankshaft milling machine Download PDFInfo
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- CN204893541U CN204893541U CN201520568639.XU CN201520568639U CN204893541U CN 204893541 U CN204893541 U CN 204893541U CN 201520568639 U CN201520568639 U CN 201520568639U CN 204893541 U CN204893541 U CN 204893541U
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Abstract
The utility model provides a hydraulic system of numerical control crankshaft milling machine, it includes oil feeding system and oil motor cross feed return circuit, oil feeding system includes oil tank, oil pump and motor, advancing of oil pump is provided with the filter on the oil pipe, goes out to set up the check valve on the oil pipe, oil motor cross feed return circuit includes tribit four -way reversing valve, oil motor, one -way throttle valve and two four -way reversing valve, tribit four -way reversing valve's meso position oil inlet is connected with the play oil pipe of oil pump, and two four -way reversing valve's meso position actuator port is connected to tribit four -way reversing valve's meso position oil return opening, and two meso position actuator port of tribit four -way reversing valve are connected with the both sides hydraulic fluid port of oil motor respectively, two four -way reversing valve's meso position oil inlet connects the oil sump tank, and two four -way reversing valve's meso position oil return opening connects the oil sump tank, be connected with overflow valve and manometer through the pipeline order between two four -way reversing valve's meso position oil inlet and the one -way throttle valve. The utility model discloses blade disc frame control accuracy can be effectively improved, the crankshaft machining precision is improved.
Description
Technical field
The utility model relates to digital controlled crankshaft milling machine technical field, especially relates to a kind of hydraulic system of digital controlled crankshaft milling machine.
Background technology
Existing Production of Crankshaft belongs to be produced in enormous quantities, and existing milling machine working ability is single, and machining accuracy is not high.Especially existing milling machine is used for the hydraulic circuit that cutterhead frame laterally drives and arranges unreasonable, and cause the F.F. of cutterhead frame, work is entered, rewind control accuracy is poor, cause the bent axle precision of processing low, yield rate is not high.
Utility model content
The utility model overcomes shortcoming of the prior art, provides one and effectively can improve cutterhead frame control accuracy, improves the hydraulic system of the digital controlled crankshaft milling machine of Crankshaft Machining precision.
In order to solve the problems of the technologies described above, the utility model is achieved through the following technical solutions:
A hydraulic system for digital controlled crankshaft milling machine, comprises oil supply system and oil motor traverse feed loop;
Described oil supply system comprises the motor of fuel tank, oil pump and driving oil pump; The oil inlet pipe of described oil pump be provided with filter and stretch in fuel tank, flowline arrange check valve and connects oil motor traverse feed loop;
Described oil motor traverse feed loop comprises three position four-way directional control valve, oil motor, one-way throttle valve and two position and four-way reversing valves; The meta oil-in of described three position four-way directional control valve is connected with the flowline of oil pump, the meta oil return opening of described three position four-way directional control valve connects the meta actuator port of two position and four-way reversing valves by pipeline, two meta actuator ports of described three position four-way directional control valve are connected with the both sides hydraulic fluid port of oil motor respectively; The meta oil-in of described two position and four-way reversing valves connects one-way throttle valve by pipeline and takes back fuel tank, and the meta oil return opening of described two position and four-way reversing valves takes back fuel tank by pipeline; To be linked in sequence overflow valve and Pressure gauge by pipeline between the meta oil-in of described two position and four-way reversing valves and one-way throttle valve.
Preferably, described oil pump is constant voltage oil pump.
Compared with prior art, the utility model tool has the following advantages:
The utility model is by the rational deployment design of the parts such as three position four-way directional control valve, two position and four-way reversing valves and one-way throttle valve, realize the accurate control of cutterhead frame feeding, significantly improve the F.F. of cutterhead frame, work enters and the precision of rewind, and then effectively ensure the machining accuracy of bent axle, the yield rate of bent axle effectively improves, and realizes the remarkable reduction of production cost.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is schematic diagram of the present utility model.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technical scheme in the utility model embodiment, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not paying the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
The hydraulic system of digital controlled crankshaft milling machine shown in Fig. 1, comprises oil supply system and oil motor traverse feed loop;
Described oil supply system comprises fuel tank 1, oil pump 2 and drives the motor 3 of oil pump 2; The oil inlet pipe of described oil pump 2 be provided with filter 4 and stretch in fuel tank 1, flowline arranged check valve 5 and connect oil motor traverse feed loop;
Described oil motor traverse feed loop comprises three position four-way directional control valve 6, oil motor 7, one-way throttle valve 8 and two position and four-way reversing valves 9; The meta oil-in of described three position four-way directional control valve 6 is connected with the flowline of oil pump 2, the meta oil return opening of described three position four-way directional control valve 6 connects the meta actuator port of two position and four-way reversing valves 9 by pipeline, two meta actuator ports of described three position four-way directional control valve 6 are connected with the both sides hydraulic fluid port of oil motor 7 respectively; The meta oil-in of described two position and four-way reversing valves 9 connects one-way throttle valve 8 by pipeline and takes back fuel tank 1, and the meta oil return opening of described two position and four-way reversing valves 9 takes back fuel tank 1 by pipeline; To be linked in sequence overflow valve 10 and Pressure gauge 11 by pipeline between the meta oil-in of described two position and four-way reversing valves 9 and one-way throttle valve 8.
Wherein, described oil pump 2 preferably adopts constant voltage oil pump 2.
The utility model has three duties, specific as follows:
(1) F.F.: the electromagnet YV1 of three position four-way directional control valve is energized, and hydraulic oil enters this valve from the meta oil-in of this valve, arrive the hydraulic fluid port of oil motor side afterwards from one of them meta actuator port of this valve, CD-ROM drive motor rotates forward; The oil return of this motor simultaneously flows to another meta actuator port of three position four-way directional control valve through oil pipe, flow out from the oil return opening of this valve, and the meta actuator port of two position and four-way reversing valves is entered into by pipeline, flow out from the meta oil return opening of this valve and flow back to fuel tank.
(2) work is entered: the electromagnet YV1 of three position four-way directional control valve is energized, and hydraulic oil enters this valve from the meta oil-in of this valve, and flow out to the hydraulic fluid port of oil motor side afterwards from one of them meta actuator port of this valve, CD-ROM drive motor rotates forward; The oil return of this oil motor simultaneously flows to another meta actuator port of three position four-way directional control valve through oil pipe, flow out from the meta oil return opening of this valve, and enter into the meta actuator port of two position and four-way reversing valves, now the electromagnet YV13 of two position and four-way reversing valves is energized, and fluid flows out from the meta work oil-in of this valve and gets back to fuel tank through one-way throttle valve.This loop is meter out speed control loop, and oil return line produces change that damping effectively can resist cutting force, and to make work enter process stabilization reliable, and carried out the display of pressure by Pressure gauge simultaneously.
(3) rewind: the electromagnet YV2 of three position four-way directional control valve is energized, and hydraulic oil enters this valve from the meta oil-in of this valve, flows out to the hydraulic fluid port of oil motor side afterwards from one of them meta actuator port of this valve, CD-ROM drive motor reversely rotates; The oil return of this oil motor simultaneously flows to another meta actuator port of three position four-way directional control valve, flows out into the meta actuator port of two four-ways from the meta oil-out of this valve, flows out from the meta oil-out of this valve and flows back to fuel tank.
The utility model is by the rational deployment design of the parts such as three position four-way directional control valve, two position and four-way reversing valves and one-way throttle valve, realize the accurate control of cutterhead frame feeding, significantly improve the F.F. of cutterhead frame, work enters and the precision of rewind, and then effectively ensure the machining accuracy of bent axle, the yield rate of bent axle effectively improves, and realizes the remarkable reduction of production cost.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.
Claims (2)
1. a hydraulic system for digital controlled crankshaft milling machine, comprises oil supply system and oil motor traverse feed loop; It is characterized in that:
Described oil supply system comprises the motor of fuel tank, oil pump and driving oil pump; The oil inlet pipe of described oil pump be provided with filter and stretch in fuel tank, flowline arrange check valve and connects oil motor traverse feed loop;
Described oil motor traverse feed loop comprises three position four-way directional control valve, oil motor, one-way throttle valve and two position and four-way reversing valves; The meta oil-in of described three position four-way directional control valve is connected with the flowline of oil pump, the meta oil return opening of described three position four-way directional control valve connects the meta actuator port of two position and four-way reversing valves by pipeline, two meta actuator ports of described three position four-way directional control valve are connected with the both sides hydraulic fluid port of oil motor respectively; The meta oil-in of described two position and four-way reversing valves connects one-way throttle valve by pipeline and takes back fuel tank, and the meta oil return opening of described two position and four-way reversing valves takes back fuel tank by pipeline; To be linked in sequence overflow valve and Pressure gauge by pipeline between the meta oil-in of described two position and four-way reversing valves and one-way throttle valve.
2. the hydraulic system of digital controlled crankshaft milling machine according to claim 1, is characterized in that: described oil pump is constant voltage oil pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520568639.XU CN204893541U (en) | 2015-07-31 | 2015-07-31 | Hydraulic system of numerical control crankshaft milling machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520568639.XU CN204893541U (en) | 2015-07-31 | 2015-07-31 | Hydraulic system of numerical control crankshaft milling machine |
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| CN204893541U true CN204893541U (en) | 2015-12-23 |
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| CN201520568639.XU Active CN204893541U (en) | 2015-07-31 | 2015-07-31 | Hydraulic system of numerical control crankshaft milling machine |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109550788A (en) * | 2017-09-25 | 2019-04-02 | 宝山钢铁股份有限公司 | A kind of mill roll changing device and the method for changing track for roll centering |
| CN112191899A (en) * | 2020-09-28 | 2021-01-08 | 杨东梅 | A inside and outside milling machine for new energy automobile engine crankshaft production line |
-
2015
- 2015-07-31 CN CN201520568639.XU patent/CN204893541U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109550788A (en) * | 2017-09-25 | 2019-04-02 | 宝山钢铁股份有限公司 | A kind of mill roll changing device and the method for changing track for roll centering |
| CN112191899A (en) * | 2020-09-28 | 2021-01-08 | 杨东梅 | A inside and outside milling machine for new energy automobile engine crankshaft production line |
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