CN114700477B - High-pressure casting local extrusion control method, device, equipment and medium - Google Patents
High-pressure casting local extrusion control method, device, equipment and medium Download PDFInfo
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- CN114700477B CN114700477B CN202210180864.0A CN202210180864A CN114700477B CN 114700477 B CN114700477 B CN 114700477B CN 202210180864 A CN202210180864 A CN 202210180864A CN 114700477 B CN114700477 B CN 114700477B
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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
- B22D17/2015—Means for forcing the molten metal into the die
- B22D17/2069—Exerting after-pressure on the moulding material
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]
Abstract
The invention discloses a high-pressure casting local extrusion control method, a device, equipment and a medium, which comprise the following steps: in the process that the local extrusion equipment is in contact with the target casting, acquiring a first temperature of the target casting through a temperature sensor, and sending the first temperature to a controller; and judging whether the first temperature is less than or equal to a preset temperature threshold value or not through the controller, and controlling the extrusion pin of the local extrusion equipment to move towards the target casting when the first temperature is less than or equal to the preset temperature threshold value, so that the local extrusion equipment performs local extrusion on the target casting. According to the method, the extrusion parameters of the historical castings subjected to historical extrusion are analyzed, the proper preset temperature threshold is determined, the starting time of the extrusion pin is conveniently determined according to the preset temperature threshold, the mode of fixed starting time in the related technology is abandoned, the starting time of the extrusion pin can be prevented from being too early or too late, the extrusion pin is basically started at the optimal time, and the occurrence probability of shrinkage cavity defects can be greatly reduced.
Description
Technical Field
The invention relates to the technical field of casting, in particular to a high-pressure casting local extrusion control method, a device, equipment and a medium.
Background
In the high-pressure casting process, in order to reduce internal shrinkage porosity at the local wall thickness position of the die-cast part, a local extrusion process is generally adopted. There are 3 important parameters of the partial extrusion process, including: extrusion pressure, extrusion pin actuation time, and extrusion pin retraction time.
Regarding the squeeze pin start time, in the related art, a fixed squeeze pin start time is generally used. However, in the casting production process, the temperature of the surface of the die may float up and down, the temperature of the casting also has a certain floating range, other casting parameters also have certain fluctuation, the starting time of the fixed extrusion pin cannot be adjusted in time along with the fluctuation of the parameters, and further, the problem of poor extrusion quality exists when the starting time of the fixed extrusion pin is used.
Disclosure of Invention
According to the method, the device, the equipment and the medium for controlling the local extrusion of the high-pressure casting, the technical problem that the extrusion effect is poor due to the fact that fixed extrusion pin starting time is used in the prior art is solved, the flexible extrusion pin starting time is used, and the technical effect of improving extrusion quality is achieved.
In a first aspect, the present application provides a high-pressure casting local extrusion control method, applied to a local extrusion device, where the local extrusion device includes a controller and a temperature sensor, the method includes:
in the process that the local extrusion equipment is in contact with the target casting, acquiring a first temperature of the target casting through a temperature sensor, and sending the first temperature to a controller;
and judging whether the first temperature is less than or equal to a preset temperature threshold value or not through the controller, and controlling the extrusion pin of the local extrusion equipment to move towards the target casting when the first temperature is less than or equal to the preset temperature threshold value, so that the local extrusion equipment performs local extrusion on the target casting.
Further, the method for determining the preset temperature threshold value comprises the following steps:
acquiring starting time of movement of the extrusion pin to each historical casting and first historical temperature corresponding to the starting time and second historical temperature corresponding to the local extrusion equipment of each historical casting in the process that the local extrusion equipment extrudes N historical castings respectively; n is a positive integer;
acquiring a travel distance corresponding to the extrusion pin when the extrusion pin stops extruding each historical casting;
obtaining extrusion quality evaluation of each historical casting;
and performing machine learning by using the starting time, the first historical temperature, the second historical temperature, the travel distance and the extrusion quality evaluation corresponding to each historical casting, and determining a preset temperature threshold.
Further, before the travel distance corresponding to the extrusion pin is obtained when the extrusion pin stops extruding each historical casting, the method further comprises:
in the process that the local extrusion equipment extrudes N historical castings respectively, aiming at each historical casting in the N historical castings, the corresponding stroke variation when the extrusion pin extrudes the historical castings is monitored, and when the stroke variation is smaller than or equal to the preset variation, the extrusion pin is controlled to stop extruding the historical castings.
Further, before determining whether the first temperature is less than or equal to the preset temperature threshold, the method further includes:
determining the alloy type of the target casting;
and determining a preset temperature threshold corresponding to the target casting according to the alloy type of the target casting.
In a second aspect, the present application provides a high pressure casting partial extrusion control apparatus, the apparatus comprising:
the judging module is used for acquiring a first temperature of the target casting through the temperature sensor in the process that the local extrusion equipment is in contact with the target casting, and sending the first temperature to the controller;
and the control module is used for judging whether the first temperature is less than or equal to a preset temperature threshold value through the controller, and controlling the extrusion pin of the local extrusion equipment to move towards the target casting when the first temperature is less than or equal to the preset temperature threshold value, so that the local extrusion equipment locally extrudes the target casting.
Further, the apparatus further includes a preset temperature threshold determining module, where the preset temperature threshold determining module is configured to:
acquiring starting time of movement of the extrusion pin to each historical casting and first historical temperature corresponding to the starting time and second historical temperature corresponding to the local extrusion equipment of each historical casting in the process that the local extrusion equipment extrudes N historical castings respectively; n is a positive integer;
acquiring a travel distance corresponding to the extrusion pin when the extrusion pin stops extruding each historical casting;
obtaining extrusion quality evaluation of each historical casting;
and performing machine learning by using the starting time, the first historical temperature, the second historical temperature, the travel distance and the extrusion quality evaluation corresponding to each historical casting, and determining a preset temperature threshold.
Further, the control module is further configured to:
in the process that the local extrusion equipment extrudes N historical castings respectively, aiming at each historical casting in the N historical castings, the corresponding stroke variation when the extrusion pin extrudes the historical castings is monitored, and when the stroke variation is smaller than or equal to the preset variation, the extrusion pin is controlled to stop extruding the historical castings.
Further, the apparatus further includes a preset temperature threshold determining module, where the preset temperature threshold determining module is configured to:
determining the alloy type of the target casting;
and determining a preset temperature threshold corresponding to the target casting according to the alloy type of the target casting.
In a third aspect, the present application provides an electronic device, including:
a processor;
a memory for storing processor-executable instructions;
wherein the processor is configured to execute to implement a high pressure casting partial extrusion control method provided in the first aspect.
In a fourth aspect, the present application provides a non-transitory computer readable storage medium, which when executed by a processor of an electronic device, enables the electronic device to perform implementing a high pressure casting local extrusion control method provided in the first aspect.
One or more technical solutions provided in the embodiments of the present application at least have the following technical effects or advantages:
in the process of contacting the local extrusion equipment with the target casting, acquiring a first temperature of the target casting, and judging whether the first temperature is less than or equal to a preset temperature threshold; and when the first temperature is less than or equal to a preset temperature threshold value, controlling the extrusion pin of the local extrusion equipment to move towards the target casting, so that the local extrusion equipment performs local extrusion on the target casting. According to the method, the extrusion parameters of the historical castings subjected to historical extrusion are analyzed, the proper preset temperature threshold is determined, the starting time of the extrusion pin is conveniently determined according to the preset temperature threshold, the mode of fixed starting time in the related technology is abandoned, the starting time of the extrusion pin can be prevented from being too early or too late, the extrusion pin is basically started at the optimal time, the occurrence probability of shrinkage cavity defects can be greatly reduced, and the extrusion quality is greatly improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic flow chart of a high-pressure casting local extrusion control method provided by the application;
FIG. 2 is a schematic cross-sectional view of a partial extrusion apparatus provided herein;
FIG. 3 is a schematic side view of a partial extrusion apparatus (schematic right side view of FIG. 2) provided herein;
FIG. 4 is a schematic diagram of an operation flow of the extrusion control method provided in the present application;
FIG. 5 is a schematic structural view of a high pressure casting partial extrusion control device provided by the present application;
fig. 6 is a schematic structural diagram of an electronic device provided in the present application.
Reference numerals:
1-target casting, 2-die bushing, 3-first temperature sensor, 4-squeeze pin bushing, 5-second temperature sensor, 6-squeeze pin, 7-displacement sensor.
Detailed Description
The embodiment of the application solves the technical problem that the starting time of a fixed extrusion pin in the prior art is poor in extrusion effect by providing the high-pressure casting local extrusion control method.
The technical scheme of the embodiment of the application aims to solve the technical problems, and the overall thought is as follows:
the high-pressure casting local extrusion control method is applied to local extrusion equipment, the local extrusion equipment comprises a controller and a temperature sensor, and the method comprises the following steps of: acquiring a first temperature of the target casting 1 through a temperature sensor in the process that the local extrusion equipment is in contact with the target casting 1, and sending the first temperature to a controller; and judging whether the first temperature is less than or equal to a preset temperature threshold value or not through the controller, and controlling the extrusion pin 6 of the local extrusion equipment to move towards the target casting 1 when the first temperature is less than or equal to the preset temperature threshold value, so that the local extrusion equipment performs local extrusion on the target casting 1.
According to the embodiment, the extrusion parameters of the historical castings subjected to historical extrusion are analyzed, so that a proper preset temperature threshold value is determined, the starting time of the extrusion pin 6 is conveniently determined according to the preset temperature threshold value, the mode of fixed starting time in the related technology is abandoned, the starting time of the extrusion pin 6 can be prevented from being too early or too late, the extrusion pin 6 is basically started at the optimal time, the occurrence probability of shrinkage porosity defects can be greatly reduced, and the extrusion quality is greatly improved.
In order to better understand the above technical solutions, the following detailed description will refer to the accompanying drawings and specific embodiments.
First, the term "and/or" appearing herein is merely an association relationship describing associated objects, meaning that there may be three relationships, e.g., a and/or B, may represent: a exists alone, A and B exist together, and B exists alone. In addition, the character "/" herein generally indicates that the front and rear associated objects are an "or" relationship.
In the high-pressure casting process, in order to reduce internal shrinkage porosity at the local wall thickness position of the die-cast part, a local extrusion process is generally adopted. The partial extrusion process has 3 important parameters, namely extrusion pressure, starting moment of the extrusion pin 6 and withdrawing moment of the extrusion pin 6. Of these, it is difficult to determine the moment of actuation of the pressing pin 6. The starting time is too early, the casting is still in a liquid state, the extrusion pin 6 does not play a role of compacting the casting in the liquid casting, namely, the solid phase percentage of the extruded area is too low, the extrusion pin 6 easily enters the casting, the casting cannot be fed in the subsequent cooling process, and shrinkage porosity and shrinkage cavity defects are still generated in the thick and large area. The starting time is too late, the surface of the casting around the extrusion pin 6 is solidified, even the inside of the casting is solidified, so that the extrusion pressure cannot be transmitted, the extrusion pressure loss is large, the extrusion effect is not obvious, the extrusion distance of the extrusion pin 6 is insufficient, namely, the solid phase percentage of the extruded area is too high, the extrusion pin 6 is difficult to extrude into the casting, and shrinkage cavity cannot be eliminated.
In the related art, a fixed extrusion start time is generally determined through process simulation of fixed parameters. In the actual mold test process, the extrusion depth of the casting extrusion pin 6 and the X-ray detection result are observed and detected, and whether extrusion parameters are reasonable or not is confirmed.
However, in the casting production process, the temperature of the surface of the mold may float up and down, the casting temperature also has a certain floating range, and other casting parameters also have certain fluctuation. The starting time of the fixed extrusion pin 6 cannot be adjusted in time along with parameter fluctuation, so that the extrusion quality of castings is poor.
The present embodiment provides a high-pressure casting partial extrusion control method as shown in fig. 1, which is applied to a controller (the controller is not shown in fig. 2 and 3) of a partial extrusion apparatus as shown in fig. 2 and 3, the partial extrusion apparatus further including a die bushing 2, an extrusion pin 6, and a temperature sensor, the extrusion pin 6 penetrating the die bushing 2 and being movably embedded in the die bushing 2, a temperature detection position of the temperature sensor being provided on an interface between the die bushing 2 and a target casting 1; the temperature sensor is connected with the controller.
More specifically, the inside of the die bushing 2 is further provided with an extrusion pin bushing 4, and the extrusion pin bushing 4 penetrates through the die bushing 2 and is embedded in the die bushing 2, and the temperature sensor may be provided in the extrusion pin bushing 4 or in the die bushing 2. The temperature sensors may be provided in two, including a first temperature sensor 3 and a second temperature sensor 5, one for monitoring the temperature of the target casting 1 and the other for monitoring the temperature of the mold liner 2. The setting positions of the first temperature sensor 3 and the second temperature sensor 5 may be determined as required. In fig. 2 and 3 provided by the present embodiment, the first temperature sensor 3 is provided in the die bushing 2, and the second temperature sensor 5 is provided in the squeeze pin bushing 4. The extrusion pin 6 can be moved within the extrusion pin bushing 4 to effect extrusion of the target casting 1. The squeeze pin 6 is further provided with a displacement sensor 7, and the displacement sensor 7 is used for monitoring the moving distance of the squeeze pin 6.
Among them, since the temperature of the target casting 1 is high, the sensor for measuring the temperature of the target casting 1 is a device that needs to withstand high temperatures, which is costly. Therefore, in the case of cost prohibitive and low temperature accuracy requirements, only one sensor for monitoring the temperature of the mold liner 2 may be provided. In the case of permissible costs and high temperature accuracy requirements, a sensor for monitoring the temperature of the target casting 1 and a sensor for monitoring the temperature of the mold bushing 2 can be provided.
The high-pressure casting partial extrusion control method shown in fig. 1 includes:
step S11, during the process that the local extrusion equipment is in contact with the target casting 1, acquiring a first temperature of the target casting 1 through a temperature sensor, and sending the first temperature to a controller.
After the filling of the target casting 1 is completed, the first temperature of the surface of the target casting 1 is continuously monitored by a temperature sensor. Since the surface temperature of the target casting 1 changes rapidly, the sampling rate of the temperature sensor used may be 100Hz or more.
In which case the first temperature of the surface of the target casting 1 can also be replaced by the second temperature of the mold liner 2 in cases where the computational accuracy requirements are not high. Although the first temperature of the surface of the target casting 1 and the second temperature of the mold liner 2 are different, the second temperature of the mold liner 2 also reflects the temperature of the surface of the target casting 1 to some extent, and therefore, the second temperature of the mold liner 2 can be used instead of the first temperature of the surface of the target casting 1 in the case where the calculation accuracy demand is not high. By using the second temperature of the mold liner 2 instead of the first temperature of the surface of the target casting 1, the high temperature resistance requirements for the temperature-monitoring sensor are reduced, and thus the detection cost can be reduced.
For convenience of explanation of the present embodiment, the present embodiment will be explained taking the first temperature of the target casting 1 as an example.
The first temperatures of the target castings 1 are continuously collected, and for each collected first temperature, the first temperatures are compared with a preset temperature threshold value, and whether the first temperatures are smaller than or equal to the preset temperature threshold value is judged. The temperature can indicate the solid fraction of the target casting 1 to a certain extent, and further, by monitoring the relation between the first temperature and a preset temperature threshold value, it is determined whether the target casting 1 is in a stage where extrusion can be well achieved, that is, whether the solid fraction of the target casting 1 is within a proper range.
The method for determining the preset temperature threshold comprises the following steps:
step S21, acquiring the starting time of the movement of the extrusion pin 6 to each historical casting and the first historical temperature corresponding to the starting time and the second historical temperature corresponding to the local extrusion equipment of each historical casting in the process of respectively extruding N historical castings by the local extrusion equipment; n is a positive integer.
And S22, obtaining the corresponding travel distance of the extrusion pin 6 when the extrusion pin 6 stops extruding each historical casting.
S23, obtaining extrusion quality evaluation of each historical casting;
and step S24, performing machine learning by using the starting time, the first historical temperature, the second historical temperature, the travel distance and the extrusion quality evaluation corresponding to each historical casting, and determining a preset temperature threshold.
In the embodiment, the extrusion parameters in the historical extrusion record of the local extrusion equipment are obtained, the extrusion parameters are analyzed, and the proper preset temperature threshold is determined in a machine learning mode.
The extrusion parameters comprise the starting time of the extrusion pin 6 moving towards the historical castings, the first historical temperature of the historical castings corresponding to the starting time, the second historical temperature corresponding to the local extrusion equipment, the travel distance and the extrusion quality evaluation of each historical casting. And analyzing the starting time, the first historical temperature of the historical casting, the second historical temperature corresponding to the local extrusion equipment, the travel distance and the extrusion quality evaluation by adopting a machine learning algorithm provided in the related technology, determining the matching relation of the starting time, the first historical temperature, the second historical temperature, the travel distance and the extrusion quality evaluation, and further determining a proper preset temperature threshold.
The extrusion parameters may also include pressure data, i.e. the temperature sensor may be replaced by a temperature and pressure integrated sensor. When the solid fraction of the target casting 1 is high, the pressure value is small because the pressure transmission of the solid is limited, and when the solid fraction of the target casting 1 is low, the pressure value is large because the pressure transmission performance of the liquid is high. Thus, the solid fraction of the target casting 1 can be reflected laterally by the pressure data. Thus, the corresponding preset pressure threshold value may be determined in a similar manner to the preset temperature threshold value to determine the appropriate moment of activation of the extrusion pin 6.
Of course, the starting time of the extrusion pin 6 can also be determined through a preset temperature threshold, whether the starting time of the extrusion pin 6 is wrong or not is determined through a preset pressure threshold, and the starting time of the extrusion pin 6 is determined through two data of temperature and pressure, so that the accuracy is higher, and the probability of shrinkage porosity and shrinkage porosity defect of the target casting 1 is further reduced.
Further, before the distance of travel corresponding to the extrusion pin 6 is obtained when the extrusion pin 6 stops extruding each historical casting, the method further comprises:
in the process that the local extrusion equipment extrudes N historical castings respectively, monitoring the corresponding stroke variation of the extrusion pin 6 when extruding each historical casting according to each historical casting in the N historical castings;
when the stroke variation is equal to or less than the preset variation, the squeeze pins 6 are controlled to stop squeezing each of the history castings.
The moment when the extrusion pin 6 stops extruding each historical casting is mainly determined according to the displacement change of the extrusion pin 6, when the stroke change amount of the extrusion pin 6 is smaller than the preset change amount, the extrusion pin 6 is considered to be blocked by the target casting 1 and does not advance any more, and at the moment, the extrusion pin 6 stops extruding the historical castings continuously.
In addition, since the target casting 1 is mainly an alloy and the preset temperature thresholds corresponding to different alloys are different, when the steps S21-S24 are executed, the corresponding preset temperature thresholds can be determined for different alloys respectively, and then the alloy type of the target casting 1 can be determined before judging whether the first temperature is less than or equal to the preset temperature threshold; and determining a preset temperature threshold corresponding to the target casting 1 according to the alloy type of the target casting 1.
For example, different preset temperature thresholds may be determined for different alloys, and after determining the alloy type of the target casting 1, the corresponding preset temperature thresholds may be queried, so as to determine the corresponding preset temperature threshold of the target casting 1.
For example, the preset temperature threshold value of the aluminum alloy casting ranges from 450 degrees celsius to 635 degrees celsius. Correspondingly, when the temperature of the mold bushing 2 is used as the reference temperature, the value range of the internal temperature threshold value of the mold bushing 2 corresponding to the aluminum alloy casting is 180-550 ℃. The preset temperature threshold value of the magnesium alloy casting ranges from 395 ℃ to 630 ℃. Correspondingly, when the temperature of the die bushing 2 is used as the reference temperature, the value range of the internal temperature threshold value of the die bushing 2 corresponding to the magnesium alloy casting is 180-550 ℃.
Step S12, judging whether the first temperature is smaller than or equal to a preset temperature threshold value or not through the controller, and controlling the extrusion pin of the local extrusion equipment to move towards the target casting 1 when the first temperature is smaller than or equal to the preset temperature threshold value, so that the local extrusion equipment performs local extrusion on the target casting 1.
Judging the size relation between the first temperature and the preset temperature threshold, when the first temperature of the target casting 1 is smaller than or equal to the preset temperature threshold, the solid phase rate of the target casting 1 is in a proper range, and at the moment, the extrusion pin 6 can be controlled to move towards the target casting 1, so that the target casting 1 is locally extruded by local extrusion equipment.
That is, in this embodiment, by analyzing the extrusion parameters of the historical castings subjected to historical extrusion, a suitable preset temperature threshold is determined, so that the starting time of the extrusion pin 6 is determined according to the preset temperature threshold, the mode of fixed starting time in the related art is abandoned, and further, the starting time of the extrusion pin 6 is prevented from being too early or too late, so that the extrusion pin 6 is basically started at a better time, the occurrence probability of shrinkage porosity defects can be greatly reduced, and the extrusion quality is greatly improved.
An example will now be provided to explain the scheme provided in this embodiment.
As shown in fig. 4, when the casting is completely filled, a timer is started, on the one hand, a temperature sensor is used for collecting the temperature, the relation between the collected temperature and a temperature threshold value is judged, and when the collected temperature is smaller than or equal to the temperature threshold value, the extrusion pin 6 is started, and at the moment, the starting moment is recorded. As the extrusion pin 6 starts to start, the extrusion stroke of the extrusion pin 6 is measured, when the variation of the extrusion stroke is smaller than the preset variation, the extrusion pin 6 is controlled to stop extrusion, and the stop time is recorded, and the recorded information can be used for machine learning to further accurately start the extrusion pin 6.
Based on the same inventive concept, the present embodiment provides a high pressure casting partial extrusion control apparatus as shown in fig. 5, the apparatus including:
a judging module 51, configured to acquire a first temperature of the target casting 1 through a temperature sensor during a process of contacting the local extrusion device with the target casting 1, and send the first temperature to the controller;
the control module 52 is configured to determine, by using the controller, whether the first temperature is equal to or less than a preset temperature threshold, and when the first temperature is equal to or less than the preset temperature threshold, control the movement of the extrusion pin of the local extrusion device toward the target casting 1, so that the local extrusion device performs local extrusion on the target casting 1.
Further, the apparatus further includes a preset temperature threshold determining module configured to:
acquiring the starting time of the movement of the extrusion pin 6 to each historical casting and the first historical temperature corresponding to the starting time and the second historical temperature corresponding to the local extrusion equipment of each historical casting in the process that the local extrusion equipment extrudes N historical castings respectively; n is a positive integer;
acquiring the corresponding travel distance of the extrusion pin 6 when the extrusion pin 6 stops extruding each historical casting;
obtaining extrusion quality evaluation of each historical casting;
and performing machine learning by using the starting time, the first historical temperature, the second historical temperature, the travel distance and the extrusion quality evaluation corresponding to each historical casting, and determining a preset temperature threshold.
Further, the control module 52 is also configured to:
in the process that the local extrusion equipment extrudes N historical castings respectively, monitoring the corresponding stroke variation of the extrusion pin 6 when extruding the historical castings according to each historical casting in the N historical castings;
when the stroke variation is less than or equal to the preset variation, the extrusion pin 6 is controlled to stop extruding the historical castings.
Further, the preset temperature threshold determining module is further configured to:
determining the alloy type of the target casting 1;
and determining a preset temperature threshold corresponding to the target casting 1 according to the alloy type of the target casting 1.
Based on the same inventive concept, the present embodiment provides an electronic device as shown in fig. 6, including:
a processor 61;
a memory 62 for storing instructions executable by the processor 61;
wherein the processor 61 is configured to execute to implement a high pressure casting localized crush control method.
Based on the same inventive concept, the present embodiment provides a non-transitory computer-readable storage medium, which when instructions in the storage medium are executed by the processor 61 of the electronic device, enables the electronic device to perform implementing a high-pressure casting local extrusion control method.
Since the electronic device described in this embodiment is an electronic device used to implement the method of information processing in this embodiment, those skilled in the art will be able to understand the specific implementation of the electronic device and various modifications thereof based on the method of information processing described in this embodiment, so how the method of this embodiment is implemented in this electronic device will not be described in detail herein. The electronic device used by those skilled in the art to implement the information processing method in the embodiments of the present application falls within the scope of protection intended by the present application.
It will be appreciated by those skilled in the art that embodiments of the present invention may be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
The present invention is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems) and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flowchart illustrations and/or block diagrams, and combinations of flows and/or blocks in the flowchart illustrations and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
While preferred embodiments of the present invention have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. It is therefore intended that the following claims be interpreted as including the preferred embodiments and all such alterations and modifications as fall within the scope of the invention.
It will be apparent to those skilled in the art that various modifications and variations can be made to the present invention without departing from the spirit or scope of the invention. Thus, it is intended that the present invention also include such modifications and alterations insofar as they come within the scope of the appended claims or the equivalents thereof.
Claims (8)
1. A high pressure casting partial extrusion control method, characterized by being applied to a partial extrusion apparatus including a controller and a temperature sensor, the method comprising:
acquiring a first temperature of the target casting through the temperature sensor in the process that the local extrusion equipment is in contact with the target casting, and sending the first temperature to the controller;
judging whether the first temperature is less than or equal to a preset temperature threshold value or not through the controller, and controlling the extrusion pin of the local extrusion equipment to move towards the target casting when the first temperature is less than or equal to the preset temperature threshold value, so that the local extrusion equipment locally extrudes the target casting;
the method for determining the preset temperature threshold comprises the following steps:
acquiring starting time of movement of the extrusion pin to each historical casting and first historical temperature corresponding to the starting time and second historical temperature corresponding to the local extrusion equipment of each historical casting in the process that the local extrusion equipment extrudes N historical castings respectively; n is a positive integer;
acquiring a travel distance corresponding to the extrusion pin when the extrusion pin stops extruding each historical casting;
obtaining extrusion quality evaluation of each historical casting;
and performing machine learning by using the starting time, the first historical temperature, the second historical temperature, the travel distance and the extrusion quality evaluation corresponding to each historical casting, and determining the preset temperature threshold.
2. The method of claim 1, wherein, upon acquiring the squeeze pins to stop squeezing each historical cast, the method further comprises, prior to the squeeze pins corresponding travel distances:
in the process that the local extrusion equipment extrudes N historical castings respectively, monitoring the corresponding stroke variation when the extrusion pin extrudes the historical castings according to each historical casting in the N historical castings, and controlling the extrusion pin to stop extruding the historical castings when the stroke variation is smaller than or equal to the preset variation.
3. The method of claim 1, wherein prior to determining whether the first temperature is less than or equal to a preset temperature threshold, the method further comprises:
determining the alloy type of the target casting;
and determining the preset temperature threshold corresponding to the target casting according to the alloy type of the target casting.
4. A high pressure casting partial extrusion control device, the device comprising:
the judging module is used for acquiring a first temperature of the target casting through the temperature sensor in the process that the local extrusion equipment is in contact with the target casting, and sending the first temperature to the controller;
the control module is used for judging whether the first temperature is smaller than or equal to a preset temperature threshold value or not through the controller, and controlling the extrusion pin of the local extrusion equipment to move towards the target casting when the first temperature is smaller than or equal to the preset temperature threshold value, so that the local extrusion equipment locally extrudes the target casting;
the apparatus further comprises a preset temperature threshold determination module for:
acquiring starting time of movement of the extrusion pin to each historical casting and first historical temperature corresponding to the starting time and second historical temperature corresponding to the local extrusion equipment of each historical casting in the process that the local extrusion equipment extrudes N historical castings respectively; n is a positive integer;
acquiring a travel distance corresponding to the extrusion pin when the extrusion pin stops extruding each historical casting;
obtaining extrusion quality evaluation of each historical casting;
and performing machine learning by using the starting time, the first historical temperature, the second historical temperature, the travel distance and the extrusion quality evaluation corresponding to each historical casting, and determining the preset temperature threshold.
5. The apparatus of claim 4, wherein the control module is further to:
in the process that the local extrusion equipment extrudes N historical castings respectively, monitoring the corresponding stroke variation when the extrusion pin extrudes the historical castings according to each historical casting in the N historical castings, and controlling the extrusion pin to stop extruding the historical castings when the stroke variation is smaller than or equal to the preset variation.
6. The apparatus of claim 4, further comprising a preset temperature threshold determination module to:
determining the alloy type of the target casting;
and determining the preset temperature threshold corresponding to the target casting according to the alloy type of the target casting.
7. An electronic device, comprising:
a processor;
a memory for storing the processor-executable instructions;
wherein the processor is configured to execute to implement a high pressure casting partial extrusion control method as claimed in any one of claims 1 to 3.
8. A non-transitory computer readable storage medium, which when executed by a processor of an electronic device, causes the electronic device to perform a method of implementing a high pressure casting partial extrusion control as claimed in any one of claims 1 to 3.
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