CN111283283A - Novel discharging oil hydraulic circuit of discharging processing machine - Google Patents
Novel discharging oil hydraulic circuit of discharging processing machine Download PDFInfo
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- CN111283283A CN111283283A CN202010217525.6A CN202010217525A CN111283283A CN 111283283 A CN111283283 A CN 111283283A CN 202010217525 A CN202010217525 A CN 202010217525A CN 111283283 A CN111283283 A CN 111283283A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23H—WORKING OF METAL BY THE ACTION OF A HIGH CONCENTRATION OF ELECTRIC CURRENT ON A WORKPIECE USING AN ELECTRODE WHICH TAKES THE PLACE OF A TOOL; SUCH WORKING COMBINED WITH OTHER FORMS OF WORKING OF METAL
- B23H1/00—Electrical discharge machining, i.e. removing metal with a series of rapidly recurring electrical discharges between an electrode and a workpiece in the presence of a fluid dielectric
- B23H1/10—Supply or regeneration of working media
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Abstract
The invention provides a novel hydraulic circuit of discharge oil of a discharge processing machine, which discharges black slag in an oil groove under the condition of non-stop, constantly ensures the safe liquid level of industrial oil in the oil groove, improves the utilization rate of the industrial oil, ensures the continuous production and reduces the production cost. The oil tank is characterized in that an oil overflow hole is arranged at the highest position of the liquid level of the oil tank and is connected into the oil tank through an oil overflow pipeline, a first upper liquid level sensing device and a second bottom liquid level sensing device are arranged in an inner cavity of the oil tank and are used for monitoring the height position of black slag and the height of the liquid level of the bottom, the first upper liquid level sensing device is used for detecting the liquid level of industrial oil, an oil discharge hole is formed in the bottom of the oil tank, a first oil discharge pipe is connected to the bottom of the oil discharge hole, the output end of the first oil discharge pipe is connected with the inlet of a third valve, and the outlet of the third valve is respectively connected with the outlet of a fourth valve and the inlet of a second oil pump through pipelines.
Description
Technical Field
The invention relates to the technical field of structures of electric discharge machines, in particular to a novel hydraulic circuit of electric discharge oil of an electric discharge machine.
Background
The electric discharge machine uses the processing oil as cooling liquid and removes black slag in the processing; in order to effectively cool and discharge slag in the process of machining, the machining position must be entirely soaked in the discharge oil, so that the proper liquid level height must be controlled, and a simple oil overflow port is usually used; but the liquid level can only be controlled in the setting of oil spilling mouth, because discharge slag ratio is heavier, it can subside in the oil groove bottom, can not discharge through the oil spilling mouth, and it is longer to lead to lasting processing time, and the processing oil groove's black sediment is more dirty more, and the processing effect is also more and more poor. And if use bottom control liquid level height, can effectual row's sediment, but the liquid level is difficult to control again, if control improper on the contrary the liquid level is too low, leads to unable cooling to the danger of conflagration takes place. Therefore, in the prior art, after the electric discharge machine runs for a section, the electric discharge machine needs to be stopped to discharge all the oil and the black slag in the oil groove through the oil discharge port, the production progress is influenced in the stopping process, and all the oil and the black slag are discharged, so that the utilization rate of the processing oil is low, and the production cost is increased.
Disclosure of Invention
In view of the above problems, the present invention provides a novel hydraulic circuit for electric discharge oil of an electric discharge machine, which discharges black slag in an oil tank without stopping the machine, constantly ensures a safe liquid level of industrial oil in the oil tank, improves the utilization rate of the industrial oil, ensures continuous production, and reduces the production cost.
The utility model provides a novel discharge machining machine's discharge oil hydraulic circuit, its technical scheme is such, and it includes oil groove, oil tank, the liquid level highest position of oil groove is provided with oil overflow hole, oil overflow hole is connected to through oil overflow pipeline in the oil tank, its characterized in that: the oil tank is characterized in that an upper first liquid level sensing device and a bottom second liquid level sensing device are arranged in an inner cavity of the oil tank, the bottom second liquid level sensing device is used for monitoring the height position of black slag and the height of the liquid level of the bottom, the upper first liquid level sensing device is used for detecting the liquid level of industrial oil, an oil discharge hole is formed in the bottom of the oil tank, a first oil outlet pipe is connected to the bottom of the oil discharge hole, the output end of the first oil outlet pipe is connected with the inlet of a third valve, the outlet of the third valve is connected with the outlet of a fourth valve and the inlet of a second oil pump through pipelines respectively, the outlet of the fourth valve is connected with the inlet of the second oil pump at the same time, the oil tank is provided with a second oil inlet pipe connected with the inlet of the fourth valve, the outlet of the second oil pump is connected with the inlet of at least one second filter element, and, The entry of second valve, the export of first valve advance oil pipe through the third to the oil groove fuel feeding, the export of second valve advance oil pipe through first oil row to the oil tank oil extraction, the oil tank still advances the entry of first oil pump through the tube coupling, the export of first oil pump advance oil pipe through first to the oil groove fuel feeding, it is cold quick-witted that oil has been arranged on the first oil pipe, first oil pump is used for providing refrigerated processing oil and keeps the oil level in the oil groove.
It is further characterized in that:
the first, second, third and fourth valves are solenoid valves which ensure precise control of each valve;
the outlet of the second oil pump is connected with the inlets of the N second filter elements in parallel, the outlets of the N second filter elements are connected in parallel and then enter a filtering pipeline, wherein N is a natural number more than or equal to 2, and the filtering pipeline is respectively connected with the inlet of the first valve and the inlet of the second valve;
the inlet and outlet positions of each second filter element are respectively provided with a corresponding connecting valve, and when one second filter element needs to be replaced in the period, the connecting valve at the corresponding position is closed, so that the whole loop can still be ensured to be in a working state and does not need to be stopped for replacement;
a first filter element is arranged behind an outlet of the first oil pump, so that the purity of oil entering the oil groove is ensured;
the oil tank is internally provided with a temperature sensor, and when the feedback temperature of the temperature sensor is higher than a set value or the temperature increase rate is larger than a set standard, the oil cooler is started through the first oil pump to supplement cold oil into the oil tank until the temperature sensor monitors that the temperature in the oil tank is within a monitoring range;
preferably, M parallel first filter elements are arranged behind the outlet of the first oil pump, and the M first filter elements are respectively corresponding to independent connecting valves of the inlet and the outlet, wherein M is a natural number greater than or equal to 2, so that when one first filter element is replaced, the whole loop is still in a working state and does not need to be shut down and replaced;
the first filter element and the second filter element are filter elements with the same structure, so that the universality is ensured;
the third valve is connected to the first end of the first tee joint, the second end of the first tee joint is connected to the outlet of the fourth valve, and the third end of the first tee joint is connected to the inlet of the second oil pump, so that the assembly is rapid and convenient;
a downward convex auxiliary cavity is arranged at the bottom of the oil groove, a plurality of second liquid level sensing devices are arranged in the auxiliary cavity, and the oil discharge hole is formed in the bottom of the auxiliary cavity;
the black slag of the oil tank can be gradually deposited in the auxiliary cavity under the action of gravity and liquid flow, when the quantity of the black slag is not large, the normal work of the main cavity of the oil tank is ensured, and the processing effect is ensured;
when oil is filled, the corresponding valves are controlled, the first valve and the fourth valve are opened, and the second valve and the third valve are closed, so that the first oil pump and the second oil pump simultaneously supply oil to the oil groove, the oil in the oil groove can quickly reach the liquid level height, and when the oil is full, the oil flows out from the oil overflow port and effectively controls the liquid level height;
when the machining is stopped or the oil tank needs to be cleaned, the second valve and the third valve are controlled to be opened, the first valve and the fourth valve are controlled to be closed, the second oil pump is started, the oil tank is directly pumped out and filtered and is discharged to the oil tank, and after the oil in the oil tank is discharged, the second oil pump is automatically closed after the second liquid level sensing device at the bottom detects the oil in the oil tank.
After the structure of the invention is adopted, the second liquid level sensing device at the bottom monitors the height change of the black slag at the bottom of the oil tank, when the quantity of the black slag is detected to meet the slag removal standard through the second liquid level sensing device, the first valve and the third valve are opened, the second valve and the fourth valve are closed, the second oil pump pumps the oil tank bottom to forcibly pump oil for filtering circulation, the discharged black slag is forcibly discharged and filtered, the black slag is prevented from being directly discharged to the oil tank, the black slag is prevented from depositing at the bottom of the oil tank, the filtered oil returns to the oil tank, the oil quantity of the oil tank is prevented from being insufficient, and meanwhile, the filtering function is achieved, the black slag in the oil tank is discharged under the condition of no stop, the safe liquid level of the industrial oil in the oil tank is ensured constantly, the utilization rate of the industrial oil is improved.
Drawings
FIG. 1 is a diagram of an oil circuit layout according to an embodiment of the present invention;
the names corresponding to the sequence numbers in the figure are as follows:
the oil tank comprises an oil groove 1, an oil tank 2, an oil spilling hole 3, an upper first liquid level sensing device 4, a bottom second liquid level sensing device 5, an oil discharging hole 6, a first oil outlet pipe 7, a third valve 8, a fourth valve 9, a second oil pump 10, a second oil inlet pipe 11, a second filter element 12, a first valve 13, a second valve 14, a third oil inlet pipe 15, a first oil discharging pipe 16, a first oil pump 17, a first oil inlet pipe 18, an oil cooler 19, a filtering pipeline 20, a first filter element 21, a second tee joint 22, a first tee joint 23, an auxiliary cavity 24 and an oil spilling pipeline 25.
Detailed Description
A hydraulic circuit of discharge oil of a novel discharge processing machine is shown in figure 1 and comprises an oil tank 1 and an oil tank 2, wherein an oil overflow hole 3 is arranged at the highest position of the liquid level of the oil tank 1, the oil overflow hole 3 is connected into the oil tank 2 through an oil overflow pipeline 25, an upper first liquid level sensing device 4 and a bottom second liquid level sensing device 5 are arranged in the inner cavity of the oil tank 1, the bottom second liquid level sensing device 5 is used for monitoring the height position of black slag and the height of the liquid level of the bottom, the upper first liquid level sensing device 4 is used for detecting the liquid level height of industrial oil, an oil discharge hole 6 is arranged at the bottom of the oil tank 1, the bottom of the oil discharge hole 6 is connected with a first oil outlet pipe 7, the output end of the first oil outlet pipe 7 is connected with the inlet of a third valve 8, the outlet of the third valve 8 is respectively connected with the outlet of a fourth valve 9 and the inlet of the second, the oil tank 1 is provided with a second oil inlet pipe 11 connected with an inlet of the fourth valve 9, an outlet of the second oil pump 10 is connected with an inlet of at least one second filter element 12, an outlet of the second filter element 12 is respectively connected with an inlet of the first valve 13 and an inlet of the second valve 14, an outlet of the first valve 13 supplies oil to the oil tank 1 through a third oil inlet pipe 15, an outlet of the second valve 14 discharges oil to the oil tank 2 through a first oil discharge pipe 16, the oil tank 2 is also connected with an inlet of the first oil pump 17 through a pipeline, an outlet of the first oil pump 17 supplies oil to the oil tank through the first oil inlet pipe 18, an oil cooling machine 19 is arranged on the first oil inlet pipe 18, and the first oil pump 17 is used for providing cooled processing oil and maintaining the oil level in the oil tank.
The first valve 13, the second valve 14, the third valve 8, the fourth valve 9 are all solenoid valves which ensure precise control over each valve;
preferably, the outlet of the second oil pump 10 is connected in parallel to the inlets of the N second filter elements 12, the outlets of the N second filter elements 12 are connected in parallel and then enter the filtering pipeline 20, where N is a natural number greater than or equal to 2, and the filtering pipeline 20 is connected to the inlet of the first valve 13 and the inlet of the second valve 14 respectively;
the inlet and outlet positions of each second filter element 12 are respectively provided with a corresponding connecting valve, and when one second filter element 12 needs to be replaced in the period, the connecting valve at the corresponding position is closed, so that the whole loop can still be ensured to be in a working state and does not need to be stopped for replacement;
a first filter element 21 is arranged behind the outlet of the first oil pump 17, so that the purity of the oil entering the oil tank 1 is ensured;
a temperature sensor (not shown in the figure and belonging to the conventional temperature control technology) is also arranged in the oil tank 1, when the feedback temperature of the temperature sensor is higher than a set value or the temperature increase rate is larger than a set standard, the oil cooler 19 is started through the first oil pump 14 to supplement cold oil into the oil tank 1 until the temperature sensor monitors that the temperature in the oil tank is in a monitoring range;
preferably, M parallel first filter elements 21 are arranged behind the outlet of the first oil pump 17, each of the M first filter elements 21 corresponds to a connection valve with an independent inlet and an independent outlet, wherein M is a natural number greater than or equal to 2, so that when one of the first filter elements 21 is replaced, the whole loop is still in a working state and does not need to be stopped for replacement;
the first filter element 21 and the second filter element 12 are filter elements with the same structure, and the universality is ensured.
The specific embodiment is as follows: the outlet of the second oil pump 10 is connected in parallel with the inlets of the two second filter elements 12, the outlets of the two second filter elements 12 are connected in parallel and then enter a filtering pipeline 20, and the filtering pipeline 20 is respectively connected with the inlet of the first valve 13 and the inlet of the second valve 14 through a second tee 22;
the inlet and outlet positions of each second filter element 12 are respectively provided with corresponding connecting valves (not shown in the figure, belonging to the existing mature technology), and when one second filter element 12 in the middle period needs to be replaced, the connecting valves at the corresponding positions are closed, so that the whole loop can still be ensured to be in a working state and does not need to be shut down for replacement;
a first filter element 21 is arranged behind the outlet of the first oil pump 17, so that the purity of the oil entering the oil tank 1 is ensured;
the third valve 8 is connected to the first end of the first tee 23, the second end of the first tee 23 is connected to the outlet of the fourth valve 9, and the third end of the first tee 23 is connected to the inlet of the second oil pump 10, so that the assembly is rapid and convenient;
the bottom of the oil groove 1 is provided with a downward convex auxiliary cavity 24, a plurality of second liquid level sensing devices 5 are arranged in the auxiliary cavity 24, and the oil discharge hole 6 is arranged at the bottom of the auxiliary cavity 24.
The arrows on the lines in fig. 1 indicate the direction of the industrial oil flow.
The working principle is as follows:
the first oil pump is used for providing cooled processing oil and maintaining the oil level in the oil tank, and if the liquid level is insufficient due to failure, an alarm is given to stop processing of the whole machine;
the black slag of the oil tank can be gradually deposited in the auxiliary cavity under the action of gravity and liquid flow, when the quantity of the black slag is not large, the normal work of the main cavity of the oil tank is ensured, and the processing effect is ensured;
when oil is filled, the corresponding valves are controlled, the first valve and the fourth valve are opened, and the second valve and the third valve are closed, so that the first oil pump and the second oil pump simultaneously supply oil to the oil groove, the oil in the oil groove can quickly reach the liquid level height, and when the oil is full, the oil flows out from the oil overflow port and effectively controls the liquid level height;
when the machining is stopped or the oil tank needs to be cleaned, the second valve and the third valve are controlled to be opened, the first valve and the fourth valve are controlled to be closed, the second oil pump is started, the oil tank is directly pumped out and filtered and is discharged to the oil tank, and the second oil pump is automatically closed after the oil in the oil tank is drained and the second liquid level sensing device at the bottom detects the oil in the oil tank;
the oil tank discharges black slag in the oil tank without stopping, ensures the safe liquid level of industrial oil in the oil tank constantly, improves the utilization rate of the industrial oil, ensures continuous production, and reduces the production cost.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (10)
1. The utility model provides a novel discharge machining machine's discharge oil hydraulic circuit, its includes oil groove, oil tank, the liquid level highest position of oil groove is provided with oil overflow hole, oil overflow hole is connected to through oil overflow pipeline in the oil tank, its characterized in that: the oil tank is characterized in that an upper first liquid level sensing device and a bottom second liquid level sensing device are arranged in an inner cavity of the oil tank, the bottom second liquid level sensing device is used for monitoring the height position of black slag and the height of the liquid level of the bottom, the upper first liquid level sensing device is used for detecting the liquid level of industrial oil, an oil discharge hole is formed in the bottom of the oil tank, a first oil outlet pipe is connected to the bottom of the oil discharge hole, the output end of the first oil outlet pipe is connected with the inlet of a third valve, the outlet of the third valve is connected with the outlet of a fourth valve and the inlet of a second oil pump through pipelines respectively, the outlet of the fourth valve is connected with the inlet of the second oil pump at the same time, the oil tank is provided with a second oil inlet pipe connected with the inlet of the fourth valve, the outlet of the second oil pump is connected with the inlet of at least one second filter element, and, The entry of second valve, the export of first valve advance oil pipe through the third to the oil groove fuel feeding, the export of second valve advance oil pipe through first oil row to the oil tank oil extraction, the oil tank still advances the entry of first oil pump through the tube coupling, the export of first oil pump advance oil pipe through first to the oil groove fuel feeding, it is cold quick-witted that oil has been arranged on the first oil pipe, first oil pump is used for providing refrigerated processing oil and keeps the oil level in the oil groove.
2. The hydraulic circuit of electric discharge oil for a novel electric discharge machine according to claim 1, characterized in that: the first valve, the second valve, the third valve and the fourth valve are all electromagnetic valves.
3. The hydraulic circuit of electric discharge oil for a novel electric discharge machine according to claim 1, characterized in that: the outlet of the second oil pump is connected with the inlets of the N second filter elements in parallel, the outlets of the N second filter elements are connected in parallel and then enter a filtering pipeline, N is a natural number which is more than or equal to 2, and the filtering pipeline is respectively connected with the inlet of the first valve and the inlet of the second valve.
4. The hydraulic circuit of electric discharge oil for a novel electric discharge machine according to claim 3, characterized in that: and the inlet and the outlet of each second filter element are respectively provided with a corresponding connecting valve, and when one second filter element needs to be replaced in the period, the connecting valve at the corresponding position is closed.
5. The hydraulic circuit of electric discharge oil for a novel electric discharge machine according to claim 1, characterized in that: and a first filter element is arranged behind the outlet of the first oil pump.
6. The hydraulic circuit of electric discharge oil for a novel electric discharge machine according to claim 1, characterized in that: and when the feedback temperature of the temperature sensor is higher than a set value or the temperature increase rate is larger than a set standard, the oil cooler is started through the first oil pump to supplement cold oil into the oil tank until the temperature sensor monitors that the temperature in the oil tank is within a monitoring range.
7. The hydraulic circuit of electric discharge oil for a novel electric discharge machine according to claim 1, characterized in that: m parallel first filter elements are arranged behind the outlet of the first oil pump, and correspond to independent connecting valves of the inlet and the outlet, wherein M is a natural number more than or equal to 2; the first filter element and the second filter element are filter elements with the same structure.
8. The hydraulic circuit of electric discharge oil for a novel electric discharge machine according to claim 1, characterized in that: the oil tank is characterized in that a downward convex auxiliary cavity is arranged at the bottom of the oil tank, a plurality of second liquid level sensing devices are arranged in the auxiliary cavity, and the oil discharge hole is formed in the bottom of the auxiliary cavity.
9. The hydraulic circuit of electric discharge oil for a novel electric discharge machine according to claim 1, characterized in that: and when oil is filled, the corresponding valves are controlled, the first valve and the fourth valve are opened, and the second valve and the third valve are closed, so that the first oil pump and the second oil pump simultaneously supply oil to the oil groove, the oil in the oil groove can quickly reach the liquid level height, and when the oil is full, the oil flows out from the oil overflow port and effectively controls the liquid level height.
10. The hydraulic circuit of electric discharge oil for a novel electric discharge machine according to claim 1, characterized in that: when the machining is stopped or the oil tank needs to be cleaned, the second valve and the third valve are controlled to be opened, the first valve and the fourth valve are controlled to be closed, the second oil pump is started, the oil tank is directly pumped out and filtered and is discharged to the oil tank, and after the oil in the oil tank is discharged, the second oil pump is automatically closed after the second liquid level sensing device at the bottom detects the oil in the oil tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010217525.6A CN111283283A (en) | 2020-03-25 | 2020-03-25 | Novel discharging oil hydraulic circuit of discharging processing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010217525.6A CN111283283A (en) | 2020-03-25 | 2020-03-25 | Novel discharging oil hydraulic circuit of discharging processing machine |
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| Publication Number | Publication Date |
|---|---|
| CN111283283A true CN111283283A (en) | 2020-06-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010217525.6A Pending CN111283283A (en) | 2020-03-25 | 2020-03-25 | Novel discharging oil hydraulic circuit of discharging processing machine |
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|---|---|
| CN (1) | CN111283283A (en) |
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2020
- 2020-03-25 CN CN202010217525.6A patent/CN111283283A/en active Pending
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