CN115213377B - Cooling damping diagnosis system and method for pump station of die casting machine - Google Patents
Cooling damping diagnosis system and method for pump station of die casting machine Download PDFInfo
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- CN115213377B CN115213377B CN202210643969.5A CN202210643969A CN115213377B CN 115213377 B CN115213377 B CN 115213377B CN 202210643969 A CN202210643969 A CN 202210643969A CN 115213377 B CN115213377 B CN 115213377B
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- 238000001816 cooling Methods 0.000 title claims abstract description 141
- 238000004512 die casting Methods 0.000 title claims abstract description 85
- 238000013016 damping Methods 0.000 title claims abstract description 78
- 238000003745 diagnosis Methods 0.000 title claims abstract description 36
- 238000000034 method Methods 0.000 title claims abstract description 19
- 238000001514 detection method Methods 0.000 claims description 6
- 238000004891 communication Methods 0.000 claims description 3
- 238000013459 approach Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D17/00—Pressure die casting or injection die casting, i.e. casting in which the metal is forced into a mould under high pressure
- B22D17/20—Accessories: Details
- B22D17/32—Controlling equipment
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D17/00—Pressure die casting or injection die casting, i.e. casting in which the metal is forced into a mould under high pressure
- B22D17/20—Accessories: Details
- B22D17/22—Dies; Die plates; Die supports; Cooling equipment for dies; Accessories for loosening and ejecting castings from dies
- B22D17/2218—Cooling or heating equipment for dies
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
The invention belongs to the technical field of pump station cooling damping diagnosis, and relates to a pump station cooling damping diagnosis system and method of a die casting machine. The system comprises a die casting machine control system, a servo driver, an oil pump, an oil circuit and cooling damping; the cooling damping, the servo driver and the oil pump are all arranged on an oil path, the die casting machine control system is connected with the servo driver, the servo driver is connected with the oil pump, the die casting machine control system is used for sending a corresponding theoretical rotating speed control signal to the servo driver, a pressure sensor for detecting the real-time pressure of the oil path is arranged in the servo driver, and the rotating speed of the servo driver is adjusted according to the real-time pressure of the oil path and the theoretical pressure of the oil path; the die casting machine control system is also used for judging whether the cooling damping in the oil circuit is installed correctly or not according to the theoretical rotating speed and the real-time rotating speed of the servo driver. According to the invention, whether the cooling damping in the oil way is installed correctly can be judged through the theoretical rotating speed of the servo driver and the real-time rotating speed of the servo driver, any device is not required to be additionally arranged, and the method is simple and low in cost.
Description
Technical Field
The invention belongs to the technical field of pump station cooling damping diagnosis, and particularly relates to a pump station cooling damping diagnosis system and method of a die casting machine.
Background
The cooling damper is arranged in the oil way of the pump station of the die casting machine, whether the cooling damper is accurately installed in the oil way is judged at present, a flowmeter is required to be connected into the pump station, and whether the cooling damper is accurately installed is judged through real-time feedback of the flowmeter on the flow in the oil way. The pressure flow output of the servo driver is controlled by the die casting machine, and the real-time flow feedback of the flowmeter is compared with the theoretical pressure flow output of the servo driver, so that whether the cooling damping in the oil path is accurately installed or not is judged.
However, the flowmeter needs to be installed on the oil pipe circulation side of the pump station, the damping installation position is hidden and not easy to be perceived, some damping is arranged on the inner side of the oil path block, some damping is arranged on the outer side of the oil path block and the like, and for workshop staff, the disassembling and installing cost is large, and the accuracy can not be judged. Therefore, if the damping is problematic in the customer plant, it is inconvenient to use the flowmeter to check whether the damping is faulty or not, and the diagnosis cost of cooling the damping is increased.
Therefore, a new pump station cooling damping diagnosis method for the die casting machine is needed.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides a cooling damping diagnosis system and a method for a pump station of a die casting machine, which can judge whether cooling damping in an oil way is correctly installed or not through the rotating speed of a servo driver under the condition that the pressure of the driver is closed, namely, the control pressure is close to the feedback pressure, without adding any device in the oil way, the diagnosis method is simple and the diagnosis cost is low.
The invention adopts the following technical scheme:
A cooling damping diagnosis system of a pump station of a die casting machine comprises a control system of the die casting machine, a servo driver, an oil pump, an oil way and cooling damping;
The cooling damping, the servo driver and the oil pump are all arranged on an oil path, the die casting machine control system is connected with the servo driver, the servo driver is connected with the oil pump, the die casting machine control system is used for sending a corresponding theoretical rotating speed control signal to the servo driver, a pressure sensor for detecting the real-time pressure of the oil path is arranged in the servo driver, and the rotating speed of the servo driver is adjusted according to the real-time pressure of the oil path and the theoretical pressure of the oil path;
The die casting machine control system is also used for judging whether the cooling damping in the oil circuit is installed correctly or not according to the theoretical rotating speed and the real-time rotating speed of the servo driver.
As the preferable proposal, the oil way comprises a first oil way, a switching oil way and a main oil way, the servo driver and the oil pump are arranged on the main oil way,
The first oil way and the switching oil way are arranged on the main oil way in parallel, and the switching oil way comprises a second oil way, a third oil way and a fourth oil way; the second oil circuit input end is connected with the main oil circuit, the second oil circuit output end is respectively connected with the third oil circuit input end and the fourth oil circuit input end through the valve device, and the third oil circuit output end and the fourth oil circuit output end are connected with the main oil circuit;
the first oil way, the third oil way and the fourth oil way are respectively provided with a first cooling damper, a third cooling damper and a fourth cooling damper;
The valve device comprises a first electromagnetic valve and a second electromagnetic valve which are connected with a die casting machine control system, and the die casting machine control system is also used for controlling the opening and closing of the first electromagnetic valve and the second electromagnetic valve so as to respectively realize the connection or disconnection of a third oil way, a fourth oil way and a second oil way.
Preferably, a second cooling damper is arranged on the second oil path.
As a preferable scheme, a fifth cooling damper is arranged on a main oil way connected with the first oil way output end, the third oil way output end and the fourth oil way output end.
As a preferable scheme, the control system of the die casting machine judges whether the cooling damping in the oil circuit is installed correctly or not according to the theoretical rotating speed, the real-time rotating speed of the servo driver, the theoretical pressure of the oil circuit and the real-time pressure of the oil circuit.
The invention also provides a cooling damping diagnosis method for the pump station of the die casting machine, which is based on the cooling damping diagnosis system for the pump station of the die casting machine and comprises the following steps:
S1, a control system of the die casting machine sends a corresponding theoretical rotating speed control signal to a servo driver;
S2, the servo driver adjusts the rotating speed according to the theoretical rotating speed control signal so as to drive the oil pump to output oil products into an oil way;
S3, detecting the real-time pressure of an oil way by the servo driver through a built-in pressure sensor;
S4, the servo driver adjusts the rotating speed according to the real-time pressure of the oil way and the theoretical pressure of the oil way;
s5, judging whether the cooling damping in the oil way is installed correctly or not by the control system of the die casting machine according to the theoretical rotating speed and the real-time rotating speed of the servo driver.
Preferably, the step S1 further includes the steps of: the control system of the die casting machine controls the opening and closing of the first electromagnetic valve and the second electromagnetic valve according to the cooling damping detection requirement so as to respectively realize the communication or disconnection of the third oil way, the fourth oil way and the second oil way, thereby enabling the oil ways to integrally form a high-pressure oil way, a medium-pressure oil way or a low-pressure oil way.
When the cooling damping in the high-pressure oil path needs to be detected, the die casting machine control system controls the first electromagnetic valve and the second electromagnetic valve to be closed, when the cooling damping in the medium-pressure oil path needs to be detected, the die casting machine control system controls the first electromagnetic valve to be opened and the second electromagnetic valve to be closed, and when the cooling damping in the low-pressure oil path needs to be detected, the die casting machine control system controls the first electromagnetic valve to be closed and the second electromagnetic valve to be opened.
In step S1, the control system of the die casting machine sends a corresponding theoretical rotational speed control signal to the servo driver according to the cooling damping detection requirement.
In step S5, the control system of the die casting machine determines whether the cooling damper is installed correctly according to the theoretical rotational speed, the real-time rotational speed of the servo driver, the theoretical pressure of the oil path, and the real-time pressure of the oil path.
The beneficial effects of the invention are as follows:
the cooling damping in the oil circuit can be judged whether to be installed correctly or not by the theoretical rotating speed of the servo driver, the real-time rotating speed of the servo driver, the theoretical pressure of the oil circuit and the real-time pressure of the oil circuit, any device is not needed to be additionally arranged in the oil circuit, and the diagnosis method is simple and low in diagnosis cost.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of a pump station cooling damping diagnostic system for a die casting machine according to the present invention;
fig. 2 is an enlarged view of a portion a in fig. 1;
FIG. 3 is a flow chart of a method for diagnosing cooling damping of a pump station of a die casting machine according to the present invention;
The codes in the figure are respectively: 1-die casting machine control system, 2-servo driver, 3-oil pump, 4-valve device, 41-first solenoid valve, 42-second solenoid valve, 5-first cooling damping, 51-first oil circuit, 6-second cooling damping, 61-second oil circuit, 7-third cooling damping, 71-third oil circuit, 8-fourth cooling damping, 81-fourth oil circuit, 9-fifth cooling damping, 10-system relief valve, 11-pressure sensor, 12-pressure gauge, 13-cooler, 14-liquid level gauge, 15-first oil filter, 16-second oil filter, 17-motor, 18-third oil filter.
Detailed Description
The following specific examples are presented to illustrate the present invention, and those skilled in the art will readily appreciate the additional advantages and capabilities of the present invention as disclosed herein. The invention may be practiced or carried out in other embodiments that depart from the specific details, and the details of the present description may be modified or varied from the spirit and scope of the present invention. It should be noted that the following embodiments and features in the embodiments may be combined with each other without conflict.
Embodiment one:
Referring to fig. 1, the embodiment provides a pump station cooling damping diagnosis system of a die casting machine, which comprises a die casting machine control system 1, a servo driver 2, an oil pump 3, an oil way and cooling damping, wherein the basic structure of the pump station oil way system is shown in fig. 1, but not all devices in the drawing are involved in the scheme of the invention;
The cooling damping, the servo driver 2 and the oil pump 3 are all arranged on an oil path, the die casting machine control system 1 is connected with the servo driver 2, the servo driver 2 and the oil pump 3 are communicated through EtherCAT, the servo driver 2 is connected with the oil pump 3 through a motor 17, the die casting machine control system 1 is used for sending a corresponding theoretical rotating speed control signal to the servo driver 2, a pressure sensor 11 for detecting the real-time pressure of the oil path is arranged in the servo driver 2, and the rotating speed of the servo driver 2 is adjusted according to the real-time pressure of the oil path and the theoretical pressure of the oil path;
The die casting machine control system 1 is also used for judging whether the cooling damping in the oil circuit is installed correctly according to the theoretical rotating speed and the real-time rotating speed of the servo driver 2.
Specifically:
referring to fig. 1 and 2, the oil passages include a first oil passage 51, a switching oil passage, and a main oil passage, the servo driver 2 and the oil pump 3 are both provided on the main oil passage,
The first oil passage 51 and the switching oil passage are provided in parallel on the main oil passage, and the switching oil passage includes a second oil passage 61, a third oil passage 71, and a fourth oil passage 81; the input end of the second oil circuit 61 is connected with the main oil circuit, the output end of the second oil circuit 61 is respectively connected with the input end of the third oil circuit 71 and the input end of the fourth oil circuit 81 through the valve device 4, and the output end of the third oil circuit 71 and the output end of the fourth oil circuit 81 are connected with the main oil circuit;
the first oil path 51, the second oil path 61, the third oil path 71 and the fourth oil path 81 are respectively provided with a first cooling damper 5, a second cooling damper 6, a third cooling damper 7 and a fourth cooling damper 8, and a main oil path connected with the output end of the first oil path 51, the output end of the third oil path 71 and the output end of the fourth oil path 81 is provided with a fifth cooling damper 9;
The valve device 4 includes a first solenoid valve 41 and a second solenoid valve 42 connected to the die casting machine control system 1, and the die casting machine control system 1 is further configured to control opening and closing of the first solenoid valve 41 and the second solenoid valve 42 to respectively implement communication or disconnection between the third oil passage 71 and the fourth oil passage 81 and the second oil passage 61.
The first cooling damper 5 is phi 1.0, the second cooling damper 6 is phi 3.0, the third cooling damper 7 is phi 1.6, the fourth cooling damper 8 is phi 2.0, and the fifth cooling damper 9 is phi 4.0.
Specifically:
Referring to fig. 1 and 2, when both the first solenoid valve 41 and the second solenoid valve 42 are closed, the first oil path 51 and the main oil path form a high-pressure oil path, and at this time, the oil product only passes through the first cooling damper 5 and the fifth cooling damper 9 in the oil paths, and further, at this time, the die casting machine control system 1 determines whether the first cooling damper 5 and the fifth cooling damper 9 in the oil paths are installed correctly according to the theoretical rotation speed and the real-time rotation speed of the servo driver 2.
When the first electromagnetic valve 41 is opened and the second electromagnetic valve 42 is closed, the first oil path 51, the second oil path 61, the third oil path 71 and the main oil path form a medium-pressure oil path, and at the moment, the oil product passes through the first cooling damper 5, the second cooling damper 6, the third cooling damper 7 and the fifth cooling damper 9 in the oil paths, and further, at the moment, the die casting machine control system 1 judges whether the first cooling damper 5, the second cooling damper 6, the third cooling damper 7 and the fifth cooling damper 9 in the oil paths are installed correctly according to the theoretical rotating speed and the real-time rotating speed of the servo driver 2.
When the first electromagnetic valve 41 is closed and the second electromagnetic valve 42 is opened, the first oil path 51, the second oil path 61, the fourth oil path 81 and the main oil path form a low-pressure oil path, and at the moment, the oil product passes through the first cooling damper 5, the second cooling damper 6, the fourth cooling damper 8 and the fifth cooling damper 9 in the oil paths, and further, at the moment, the die casting machine control system 1 judges whether the first cooling damper 5, the second cooling damper 6, the fourth cooling damper 8 and the fifth cooling damper 9 in the oil paths are installed correctly according to the theoretical rotating speed and the real-time rotating speed of the servo driver 2.
The control system 1 of the die casting machine can also judge whether the cooling damping in the oil circuit is installed correctly according to the theoretical pressure of the oil circuit and the real-time pressure of the oil circuit.
The specific judgment principle of the die casting machine control system 1 is as follows:
And performing three-step diagnosis, namely performing low-pressure diagnosis on cooling damping in the low-pressure oil path, performing medium-pressure diagnosis on cooling damping in the medium-pressure oil path, and performing high-pressure diagnosis on cooling damping in the high-pressure oil path.
When the low pressure diagnosis is performed, the die casting machine control system 1 controls the first electromagnetic valve 41 to be closed, the second electromagnetic valve 42 to be opened, the die casting machine control system 1 controls the pressure output of the servo driver 2 to be 20bar, the flow output is 100%, the die casting machine control system 1 sends a corresponding theoretical rotation speed control signal to the servo driver 2 according to the pressure output and the flow output, the servo driver 2 drives the oil pump 3 to output oil products according to the theoretical rotation speed driving motor 17, at the moment, under the combined action of the first cooling damper 5, the second cooling damper 6, the fourth cooling damper 8 and the fifth cooling damper 9, an oil circuit theoretical pressure exists in an oil circuit, the servo driver 2 detects the oil circuit real-time pressure through the built-in pressure sensor 11 and adjusts the rotation speed according to the oil circuit real-time pressure and the oil circuit theoretical pressure, so that the oil circuit real-time pressure approaches the oil circuit theoretical pressure, in a preset time (5 s in the embodiment), the oil circuit real-time pressure is smaller than 45bar, and the real-time rotation speed of the servo driver 2 is within a preset upper and lower limit range according to the theoretical rotation speed, the first cooling damper 5, the second cooling damper 6, the fourth cooling damper 8, the fifth cooling damper 9 and the error damping 9 are correctly installed or the error damping is judged to exist in the first cooling damper.
When the medium pressure diagnosis is carried out, the die casting machine control system 1 controls the first electromagnetic valve 41 to be opened, the second electromagnetic valve 42 to be closed, the die casting machine control system 1 controls the pressure output of the servo driver 2 to be 80bar, the flow output is 100%, the die casting machine control system 1 sends corresponding theoretical rotation speed control signals to the servo driver 2 according to the pressure output and the flow output, the servo driver 2 drives the oil pump 3 to output oil products according to the theoretical rotation speed driving motor 17, at the moment, under the combined action of the first cooling damper 5, the second cooling damper 6, the third cooling damper 7 and the fifth cooling damper 9, an oil path theoretical pressure exists in an oil path, the servo driver 2 detects the oil path real-time pressure through the built-in pressure sensor 11, and adjusts the rotation speed of the servo driver according to the oil path real-time pressure and the oil path theoretical pressure, so that the oil path real-time pressure approaches the oil path theoretical pressure, the oil path real-time pressure is more than or equal to 45bar and less than 90bar in the preset time (5 s in the embodiment), and the real-time rotation speed of the servo driver 2 is within the upper and lower limit range according to the theoretical rotation speed, if the real-time rotation speed of the theoretical rotation speed is more than or equal to 90bar, the first cooling damper 5, the second cooling damper 6, the third cooling damper 7, the fifth cooling damper 9 and the fifth cooling damper 9 are installed correctly or the cooling damper is installed correctly, or the damping is installed in the preset.
When high-pressure diagnosis is performed, the die casting machine control system 1 controls the first electromagnetic valve 41 to be closed, the second electromagnetic valve 42 to be closed, the die casting machine control system 1 controls the pressure output of the servo driver 2 to be 160bar, the flow output is 100%, the die casting machine control system 1 sends corresponding theoretical rotating speed control signals to the servo driver 2 according to the pressure output and the flow output, the servo driver 2 drives the oil pump 3 to output oil products according to the theoretical rotating speed driving motor 17, at the moment, under the combined action of the first cooling damping 5 and the fifth cooling damping 9, one oil path theoretical pressure exists in an oil path, the servo driver 2 detects the oil path real-time pressure through the built-in pressure sensor 11, and adjusts the rotating speed of the servo driver according to the oil path real-time pressure and the oil path theoretical pressure so that the oil path real-time pressure approaches the oil path theoretical pressure, in a preset time (5 s in the embodiment), the oil path real-time pressure is more than or equal to 90bar, and the real-time rotating speed of the servo driver 2 is within an upper limit and lower limit range preset according to the theoretical rotating speed, the first cooling damping 5 and the fifth cooling damping 9 are judged to be installed correctly, or otherwise, the first cooling damping 5 and the fifth cooling damping 9 are installed incorrectly.
In this embodiment, a preset upper and lower limit range of the rotation speed of the corresponding servo driver 2 model in low-pressure diagnosis, medium-pressure diagnosis and high-pressure diagnosis is provided:
300 ton machine type:
during low-pressure diagnosis, the lower rotating speed limit of the servo driver 2 is 150r/min, and the upper rotating speed limit is 350r/min;
during medium pressure diagnosis, the lower rotating speed limit of the servo driver 2 is 250r/min, and the upper rotating speed limit is 400r/min;
during high-pressure diagnosis, the lower rotating speed limit of the servo driver 2 is 150r/min, and the upper rotating speed limit is 250r/min;
400 ton machine type:
during low-pressure diagnosis, the lower rotating speed limit of the servo driver 2 is 100r/min, and the upper rotating speed limit is 250r/min;
During medium pressure diagnosis, the lower rotating speed limit of the servo driver 2 is 170r/min, and the upper rotating speed limit is 330r/min;
during high-pressure diagnosis, the lower rotating speed limit of the servo driver 2 is 100r/min, and the upper rotating speed limit is 250r/min.
Embodiment two:
Referring to fig. 3, the present embodiment provides a cooling damping diagnosis method for a pump station of a die casting machine, based on the cooling damping diagnosis system for a pump station of a die casting machine in the first embodiment, including the steps of:
S1, a die casting machine control system 1 sends a corresponding theoretical rotating speed control signal to a servo driver 2;
s2, the servo driver 2 adjusts the rotating speed according to the theoretical rotating speed control signal so as to drive the oil pump 3 to output oil into an oil way;
s3, detecting the real-time pressure of an oil way by the servo driver 2 through a built-in pressure sensor 11;
s4, the servo driver 2 adjusts the rotating speed according to the oil way real-time pressure and the oil way theoretical pressure;
s5, the die casting machine control system 1 judges whether the cooling damping in the oil way is installed correctly according to the theoretical rotating speed and the real-time rotating speed of the servo driver 2.
Specifically:
The step S1 is preceded by the steps of: the die casting machine control system 1 controls the opening and closing of the first solenoid valve 41 and the second solenoid valve 42 according to the cooling damping detection requirement to respectively realize the connection or disconnection of the third oil passage 71, the fourth oil passage 81 and the second oil passage 61, so that the oil passages integrally form a high-pressure oil passage or a medium-pressure oil passage or a low-pressure oil passage.
When the cooling damping in the high-pressure oil path needs to be detected, the die casting machine control system 1 controls the first electromagnetic valve 41 and the second electromagnetic valve 42 to be closed, when the cooling damping in the medium-pressure oil path needs to be detected, the die casting machine control system 1 controls the first electromagnetic valve 41 to be opened and the second electromagnetic valve 42 to be closed, and when the cooling damping in the low-pressure oil path needs to be detected, the die casting machine control system 1 controls the first electromagnetic valve 41 to be closed and the second electromagnetic valve 42 to be opened.
In step S1, the die casting machine control system 1 sends a corresponding theoretical rotational speed control signal to the servo driver 2 according to the cooling damping detection requirement.
In step S5, the die casting machine control system 1 determines whether the cooling damper is installed correctly in the oil path according to the theoretical rotational speed, the real-time rotational speed of the servo driver 2, the theoretical pressure of the oil path, and the real-time pressure of the oil path.
It should be noted that, in the method for diagnosing cooling damping of a pump station of a die casting machine provided in this embodiment, the method is similar to the embodiment and will not be described in detail herein.
The above examples are merely illustrative of the preferred embodiments of the present invention and are not intended to limit the scope of the present invention, and various modifications and improvements made by those skilled in the art to the technical solution of the present invention should fall within the protection scope of the present invention without departing from the design spirit of the present invention.
Claims (7)
1. The cooling damping diagnosis system for the pump station of the die casting machine is characterized by comprising a control system of the die casting machine, a servo driver, an oil pump, an oil circuit and cooling damping;
The cooling damping, the servo driver and the oil pump are all arranged on an oil path, the die casting machine control system is connected with the servo driver, the servo driver is connected with the oil pump, the die casting machine control system is used for sending a corresponding theoretical rotating speed control signal to the servo driver, a pressure sensor for detecting the real-time pressure of the oil path is arranged in the servo driver, and the rotating speed of the servo driver is adjusted according to the real-time pressure of the oil path and the theoretical pressure of the oil path;
The die casting machine control system is also used for judging whether the cooling damping in the oil circuit is installed correctly according to the theoretical rotating speed and the real-time rotating speed of the servo driver;
The oil circuit comprises a first oil circuit, a switching oil circuit and a main oil circuit, the servo driver and the oil pump are arranged on the main oil circuit, the first oil circuit and the switching oil circuit are arranged on the main oil circuit in parallel, and the switching oil circuit comprises a second oil circuit, a third oil circuit and a fourth oil circuit; the second oil circuit input end is connected with the main oil circuit, the second oil circuit output end is respectively connected with the third oil circuit input end and the fourth oil circuit input end through the valve device, and the third oil circuit output end and the fourth oil circuit output end are connected with the main oil circuit;
the first oil way, the third oil way and the fourth oil way are respectively provided with a first cooling damper, a third cooling damper and a fourth cooling damper;
The valve device comprises a first electromagnetic valve and a second electromagnetic valve which are connected with a die casting machine control system, and the die casting machine control system is also used for controlling the opening and closing of the first electromagnetic valve and the second electromagnetic valve so as to respectively realize the connection or disconnection of a third oil way, a fourth oil way and a second oil way;
a second cooling damper is arranged on the second oil way;
and a main oil circuit connected with the first oil circuit output end, the third oil circuit output end and the fourth oil circuit output end is provided with a fifth cooling damper.
2. The system of claim 1, wherein the die casting machine control system determines whether the cooling damper is installed correctly in the oil circuit based on the theoretical rotational speed, the real-time rotational speed of the servo driver, the theoretical pressure of the oil circuit, and the real-time pressure of the oil circuit.
3. A method for diagnosing cooling damping of a pump station of a die casting machine, based on the system for diagnosing cooling damping of a pump station of a die casting machine according to any one of claims 1-2, comprising the steps of:
S1, a control system of the die casting machine sends a corresponding theoretical rotating speed control signal to a servo driver;
S2, the servo driver adjusts the rotating speed according to the theoretical rotating speed control signal so as to drive the oil pump to output oil products into an oil way;
S3, detecting the real-time pressure of an oil way by the servo driver through a built-in pressure sensor;
S4, the servo driver adjusts the rotating speed according to the real-time pressure of the oil way and the theoretical pressure of the oil way;
s5, judging whether the cooling damping in the oil way is installed correctly or not by the control system of the die casting machine according to the theoretical rotating speed and the real-time rotating speed of the servo driver.
4. A method of diagnosing cooling damping in a pump station of a die casting machine according to claim 3, further comprising the step of, prior to step S1: the control system of the die casting machine controls the opening and closing of the first electromagnetic valve and the second electromagnetic valve according to the cooling damping detection requirement so as to respectively realize the communication or disconnection of the third oil way, the fourth oil way and the second oil way, thereby enabling the oil ways to integrally form a high-pressure oil way, a medium-pressure oil way or a low-pressure oil way.
5. The method for diagnosing cooling damper in a pump station of a die casting machine according to claim 4, wherein the die casting machine control system controls the first solenoid valve and the second solenoid valve to be closed when the cooling damper in the high-pressure oil path is required to be detected, and controls the first solenoid valve to be opened and the second solenoid valve to be closed when the cooling damper in the medium-pressure oil path is required to be detected, and controls the first solenoid valve to be closed and the second solenoid valve to be opened when the cooling damper in the low-pressure oil path is required to be detected.
6. A method for diagnosing cooling damping in a pump station of a die casting machine according to claim 3, wherein in step S1, the die casting machine control system sends a corresponding theoretical rotational speed control signal to the servo driver according to the cooling damping detection requirement.
7. The method for diagnosing cooling damper of pump station of die casting machine as recited in claim 3, wherein in step S5, the control system of die casting machine judges whether the cooling damper is installed correctly in the oil path according to the theoretical rotational speed, the real-time rotational speed of the servo driver, the theoretical pressure of the oil path, and the real-time pressure of the oil path.
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| CN202210643969.5A CN115213377B (en) | 2022-06-09 | 2022-06-09 | Cooling damping diagnosis system and method for pump station of die casting machine |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201008959Y (en) * | 2007-02-09 | 2008-01-23 | 侯金来 | Control device of die casting machine |
| CN201231309Y (en) * | 2008-07-18 | 2009-05-06 | 东莞市锋利盛机电有限公司 | Intelligent power-saving control device of die-casting machine |
| CN202071309U (en) * | 2011-05-10 | 2011-12-14 | 宜兴市佳晨压铸机制造有限公司 | Servo drive type die casting machine |
| CN202200580U (en) * | 2011-06-24 | 2012-04-25 | 东莞市森兴机电设备有限公司 | Electrohydraulic control device for servo motor for use in die casting machine |
| CN106735075A (en) * | 2016-12-30 | 2017-05-31 | 宁波海天金属成型设备有限公司 | A kind of die casting machine intelligent folding mould control method and control system |
| CN208303842U (en) * | 2018-04-13 | 2019-01-01 | 宁波力劲科技有限公司 | A kind of energy-saving servo system for die casting machine |
-
2022
- 2022-06-09 CN CN202210643969.5A patent/CN115213377B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201008959Y (en) * | 2007-02-09 | 2008-01-23 | 侯金来 | Control device of die casting machine |
| CN201231309Y (en) * | 2008-07-18 | 2009-05-06 | 东莞市锋利盛机电有限公司 | Intelligent power-saving control device of die-casting machine |
| CN202071309U (en) * | 2011-05-10 | 2011-12-14 | 宜兴市佳晨压铸机制造有限公司 | Servo drive type die casting machine |
| CN202200580U (en) * | 2011-06-24 | 2012-04-25 | 东莞市森兴机电设备有限公司 | Electrohydraulic control device for servo motor for use in die casting machine |
| CN106735075A (en) * | 2016-12-30 | 2017-05-31 | 宁波海天金属成型设备有限公司 | A kind of die casting machine intelligent folding mould control method and control system |
| CN208303842U (en) * | 2018-04-13 | 2019-01-01 | 宁波力劲科技有限公司 | A kind of energy-saving servo system for die casting machine |
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| CN115213377A (en) | 2022-10-21 |
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