CN216618057U - CNC drive control system driven by bidirectional pump - Google Patents
CNC drive control system driven by bidirectional pump Download PDFInfo
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- CN216618057U CN216618057U CN202122957544.5U CN202122957544U CN216618057U CN 216618057 U CN216618057 U CN 216618057U CN 202122957544 U CN202122957544 U CN 202122957544U CN 216618057 U CN216618057 U CN 216618057U
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Abstract
The utility model discloses a CNC (computer numerical control) drive control system driven by a bidirectional pump, and relates to the technical field of CNC drive control systems. The oil tank is connected with the bidirectional pump through a conveying pipeline, and an oil inlet and an oil outlet of the bidirectional pump are respectively communicated with the oil tank through a first conveying pipeline and a second conveying pipeline; the first conveying pipeline is communicated with a third conveying pipeline, and an oil inlet of the bidirectional pump is communicated with a first oil port of the oil cylinder through the third conveying pipeline; a fourth conveying pipeline is communicated with the second conveying pipeline, and an oil outlet of the bidirectional pump is communicated with a second oil port of the oil cylinder through the fourth conveying pipeline; a hydraulic control one-way valve is arranged on the first conveying pipeline; the second conveying pipeline is provided with a one-way valve. The utility model has the advantages that: through the direction of delivery of two-way pump control hydraulic oil, can carry out the backward flow and the flow replenishment of hydraulic oil, need not to use switching-over control valve and overflow valve, control is simpler, avoids the use of overflow valve for control system's the reduction that generates heat, the energy consumption is littleer.
Description
Technical Field
The utility model relates to the technical field of CNC (computerized numerical control) drive control systems, in particular to a CNC drive control system driven by a bidirectional pump.
Background
The numerical control milling machine is also called as CNC milling machine, the CNC milling machine is an automatic processing device developed on the basis of a common milling machine, the processing technology of the CNC milling machine and the automatic processing device are basically the same, the structure of the CNC milling machine is similar, the CNC milling machine is divided into two categories of a tool magazine-free type and a tool magazine-provided type, and the CNC milling machine with the tool magazine is also called as a processing center.
In the prior art, a CNC drive control system is usually hydraulic cylinder drive control, as shown in fig. 1, a drive control system is provided with an overflow valve 20 and a reversing control valve 10, a hydraulic pump delivers hydraulic oil in an oil tank to the reversing control valve 10 through a delivery pipe, and then to the oil tank, forces in different directions of the hydraulic oil in the oil tank are achieved through delivery in different directions, and finally hydraulic drive control is achieved through pressure of the hydraulic oil in the oil tank, the overflow valve 20 needs to be arranged between the hydraulic pump and the oil tank, when system pressure is increased, flow demand is reduced, at this time, the overflow valve 20 is opened, excess flow overflows back to the oil tank, pressure at an overflow valve inlet 20 is ensured, a constant pressure overflow effect is achieved, and meanwhile, the overflow valve 20 is connected in series on an oil return path, a pressure stabilizing effect can be achieved, however, the control system in this way needs the overflow valve 20 and the reversing control valve 10, and is troublesome in control, and the overflow valve 20 is easy to generate heat in use to cause the temperature of the system to rise, and the energy consumption of the control system is large.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem of providing a CNC drive control system driven by a bidirectional pump, which can solve the problems that the control system in the prior art needs an overflow valve and a reversing control valve, is troublesome to control, is easy to heat in the use of the overflow valve, causes the temperature rise of the system and has high energy consumption of the control system.
In order to solve the technical problems, the technical scheme of the utility model is as follows: the oil tank is connected with the bidirectional pump through a conveying pipeline, and an oil inlet and an oil outlet of the bidirectional pump are respectively communicated with the oil tank through a first conveying pipeline and a second conveying pipeline;
a third conveying pipeline is communicated with the first conveying pipeline and is communicated with an oil inlet of the bidirectional pump, and the third conveying pipeline is used for communicating the oil inlet of the bidirectional pump with a first oil port of the oil cylinder;
a fourth conveying pipeline is communicated with the second conveying pipeline, the fourth conveying pipeline is communicated with an oil outlet of the bidirectional pump, and the oil outlet of the bidirectional pump is communicated with a second oil port of the oil cylinder through the fourth conveying pipeline;
the first conveying pipeline is provided with a hydraulic control one-way valve, and the hydraulic control one-way valve is arranged on the first conveying pipeline between the communication position of the first conveying pipeline and the third conveying pipeline and the oil tank;
and the second conveying pipeline is provided with a one-way valve, and the one-way valve is arranged on the second conveying pipeline between the communication position of the second conveying pipeline and the fourth conveying pipeline and the oil tank.
Further, be equipped with pressure sensor on third pipeline and the fourth pipeline, pressure sensor links with controlling means electricity, controlling means still links with the pilot operated check valve on the first pipeline, the check valve on the second pipeline electricity.
After adopting the structure, the utility model has the advantages that: set up the two-way pump on the pipeline that oil tank and hydro-cylinder are connected, the direction of delivery of hydraulic oil is controlled through the two-way pump, the oil-out and the oil inlet interconversion of two-way pump, can change the flow direction of hydraulic oil, thereby change the direction of delivery of hydraulic oil, pressure sensor can record the pressure in the pipeline when hydraulic oil carries, judge the flow according to pressure, if pressure is too big, can carry out the backward flow of hydraulic oil, if the pressure undersize, can carry out the flow supplement of hydraulic oil, need not to use switching-over control valve and overflow valve, control is simpler, avoid the use of overflow valve, make control system's the reduction that generates heat, the energy consumption is littleer.
Drawings
FIG. 1 is a schematic diagram of a driving control system in the prior art;
fig. 2 is a schematic diagram of a CNC drive control system structure according to the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in detail with reference to the accompanying drawings and the detailed description. The following examples are presented to enable one of ordinary skill in the art to more fully understand the present invention and are not intended to limit the scope of the embodiments described herein.
As shown in fig. 2, the following technical solutions are adopted in the present embodiment: the oil tank is characterized by comprising an oil tank 1, an oil cylinder 2 and a bidirectional pump 3, wherein the oil tank 1 is connected with the bidirectional pump 3 through a conveying pipeline, and an oil inlet and an oil outlet of the bidirectional pump 3 are respectively communicated with the oil tank 1 through a first conveying pipeline 4 and a second conveying pipeline 5.
The first conveying pipeline 4 is communicated with a third conveying pipeline 6, the third conveying pipeline 6 is communicated with an oil inlet of the bidirectional pump 3, the third conveying pipeline 6 communicates the oil inlet of the bidirectional pump 3 with a first oil port of the oil cylinder 2, and the third conveying pipeline 6 and the first conveying pipeline 4 form a three-way connection.
The second conveying pipeline 5 is communicated with a fourth conveying pipeline 7, the fourth conveying pipeline 7 is communicated with an oil outlet of the bidirectional pump 3, the oil outlet of the bidirectional pump 3 is communicated with a second oil port of the oil cylinder 2 through the fourth conveying pipeline 7, and the fourth conveying pipeline 7 is in three-way connection with the second conveying pipeline 5.
A hydraulic control one-way valve 8 is arranged on the first conveying pipeline 4, and the hydraulic control one-way valve 8 is arranged on the first conveying pipeline 4 between the communicated part of the first conveying pipeline 4 and the third conveying pipeline 7 and the oil tank 1; the second conveying pipeline 5 is provided with a one-way valve 9, and the one-way valve 9 is arranged on the second conveying pipeline 5 between the communication position of the second conveying pipeline 5 and the fourth conveying pipeline 7 and the oil tank 1.
The working principle is as follows: the two-way pump 3 is arranged on a pipeline connecting the oil tank 1 and the oil cylinder 2, the conveying direction of the hydraulic oil is controlled by the two-way pump 3, the oil outlet and the oil inlet of the two-way pump 3 are mutually changed, the flow direction of the hydraulic oil can be changed, so that the conveying direction of the hydraulic oil is changed, the hydraulic control one-way valve 8 is opened, the hydraulic control one-way valve 8 is closed after the hydraulic oil enters the two-way pump 3 through the oil inlet and is conveyed to the oil cylinder 2 from the oil outlet, the hydraulic oil reversely enters the two-way pump 3 from the oil outlet and is conveyed to the oil cylinder 2 through the oil inlet, the oil cylinder 2 can be driven in the other direction, the pressure sensor 11 can measure the pressure in the pipeline during the conveying of the hydraulic oil, the flow can be judged according to the pressure, if the pressure is overlarge, the control device controls the hydraulic control one-way valve 8 to be opened, the backflow of the hydraulic oil is carried out, if the pressure is too small, the control device controls the hydraulic control one-way valve 8 or the one-way valve 9 to be opened, the hydraulic oil flow is supplemented, a reversing control valve and an overflow valve are not needed, the control is simpler, the use of the overflow valve is avoided, the heating of a control system is reduced, and the energy consumption is smaller.
The foregoing shows and describes the general principles and features of the present invention, together with the advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.
Claims (2)
1. A two-way pump driven CNC drive control system which characterized in that: the oil tank is connected with the bidirectional pump through a conveying pipeline, and an oil inlet and an oil outlet of the bidirectional pump are respectively communicated with the oil tank through a first conveying pipeline and a second conveying pipeline;
a third conveying pipeline is communicated with the first conveying pipeline and is communicated with an oil inlet of the bidirectional pump, and the third conveying pipeline is used for communicating the oil inlet of the bidirectional pump with a first oil port of the oil cylinder;
a fourth conveying pipeline is communicated with the second conveying pipeline, the fourth conveying pipeline is communicated with an oil outlet of the bidirectional pump, and the oil outlet of the bidirectional pump is communicated with a second oil port of the oil cylinder through the fourth conveying pipeline;
the first conveying pipeline is provided with a hydraulic control one-way valve, and the hydraulic control one-way valve is arranged on the first conveying pipeline between the communication position of the first conveying pipeline and the third conveying pipeline and the oil tank;
and the second conveying pipeline is provided with a one-way valve, and the one-way valve is arranged on the second conveying pipeline between the communication position of the second conveying pipeline and the fourth conveying pipeline and the oil tank.
2. The CNC drive control system for bi-directional pump drive of claim 1, wherein: and pressure sensors are arranged on the third conveying pipeline and the fourth conveying pipeline and are electrically connected with a control device, and the control device is also electrically connected with a hydraulic control one-way valve on the first conveying pipeline and a one-way valve on the second conveying pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122957544.5U CN216618057U (en) | 2021-11-30 | 2021-11-30 | CNC drive control system driven by bidirectional pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122957544.5U CN216618057U (en) | 2021-11-30 | 2021-11-30 | CNC drive control system driven by bidirectional pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216618057U true CN216618057U (en) | 2022-05-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122957544.5U Active CN216618057U (en) | 2021-11-30 | 2021-11-30 | CNC drive control system driven by bidirectional pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216618057U (en) |
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2021
- 2021-11-30 CN CN202122957544.5U patent/CN216618057U/en active Active
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