CN114115165B - Production control method and system of casting and forging integrated forming machine - Google Patents
Production control method and system of casting and forging integrated forming machine Download PDFInfo
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- CN114115165B CN114115165B CN202210104663.2A CN202210104663A CN114115165B CN 114115165 B CN114115165 B CN 114115165B CN 202210104663 A CN202210104663 A CN 202210104663A CN 114115165 B CN114115165 B CN 114115165B
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/418—Total factory control, i.e. centrally controlling a plurality of machines, e.g. direct or distributed numerical control [DNC], flexible manufacturing systems [FMS], integrated manufacturing systems [IMS], computer integrated manufacturing [CIM]
- G05B19/41875—Total factory control, i.e. centrally controlling a plurality of machines, e.g. direct or distributed numerical control [DNC], flexible manufacturing systems [FMS], integrated manufacturing systems [IMS], computer integrated manufacturing [CIM] characterised by quality surveillance of production
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/30—Nc systems
- G05B2219/32—Operator till task planning
- G05B2219/32252—Scheduling production, machining, job shop
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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 relates to a production control method and a system of a casting and forging integrated forming machine, belonging to the technical field of automatic control, the invention obtains the real-time temperature value in the casting and forging integrated forming machine by obtaining the casting and forging processing parameter requirements of each position of the current casting and forging piece, determining the casting and forging temperature area range of each position of the casting and forging piece based on the casting and forging processing parameter requirements, obtaining the plastic deformation capability of the casting and forging piece based on the casting and forging temperature area range and the real-time temperature value in the casting and forging integrated forming machine, determining the impact force range of a stamping head according to the plastic deformation capability of the casting and forging piece, leading the impact force not to exceed the limit stamping bearing force range of the casting and forging piece, realizing the control of the casting and forging process according to the temperature change condition in the casting and forging integrated forming machine, thereby effectively avoiding the phenomenon that the casting and forging piece is easy to break in the casting and forging process, the processing cost of the forging to be cast in the casting and forging process is reduced.
Description
Technical Field
The invention relates to the technical field of automatic control, in particular to a production control method and system based on a casting and forging integrated forming machine.
Background
The forging and casting is to apply load to the returned material by using a tool or a die under certain temperature conditions to generate plastic deformation of metal, so that the volume transfer and the shape change of the returned material are generated to obtain the forged piece with the required shape, size and structure performance. The main task of casting and forging is two-fold: firstly, the forming process is to deform the returned material with regular shape to the forging with required shape and size; and secondly, a property control process, namely, the control of the internal structure performance of the forge piece is realized through deformation. Compared with other metal plastic forming processes, the cast forging is a manufacturing or forming method which is high in quality, economical and practical, and particularly has more outstanding advantages on parts which have high performance requirements and complex shapes. The casting and forging process is widely applied to various industrial fields of machinery, metallurgy, aviation, aerospace, ships, weapons and the like, and plays an extremely important role in national economy.
In the casting and forging process, the stress field and the strain field in the returned material are uneven, so that the deformation of the forged piece is uneven, and the processing process and the product quality are greatly influenced. In the process of casting and forging, most of the casting and forging integrated forming machines are non-isothermal controllability, the temperature inside the casting and forging integrated forming machines is changed, so that the plasticity of the to-be-cast and forged piece is changed, the bearable limit stamping force is also changed, the to-be-cast and forged piece can be irregular, the bearable impact force of various parts is also inconsistent, the impact force of a stamping head is not adjusted, the to-be-cast and forged piece is easy to break, blanks are damaged, and the casting and forging cost is increased.
Disclosure of Invention
The invention overcomes the defects of the prior art and provides a production control method and a production control system of a casting and forging integrated forming machine.
In order to achieve the purpose, the invention adopts the technical scheme that:
the invention provides a production control method of a casting and forging integrated forming machine, which comprises the following steps:
acquiring the casting and forging processing parameter requirements of each position of a current to-be-cast and forged piece; the casting and forging processing parameters comprise strength values to be achieved by the to-be-cast and forged piece;
determining the casting and forging temperature area range of each position of the to-be-cast and forged piece based on the casting and forging processing parameter requirements to obtain one or more casting and forging temperature area ranges;
acquiring a real-time temperature value in the casting and forging integrated molding machine, and acquiring the plastic deformation capacity of the to-be-cast and forged piece based on the casting and forging temperature area range and the real-time temperature value in the casting and forging integrated molding machine;
determining the impact force range of the stamping head according to the plastic deformation capacity of the to-be-cast forging piece;
and transmitting the impact force of the stamping head to a control terminal of the casting and forging integrated forming machine.
Further, in a preferred embodiment of the present invention, the determining of the casting and forging temperature range of each position of the to-be-cast and forged piece based on the casting and forging processing parameter requirement specifically includes the following steps:
acquiring the plastic deformation capacity of the corresponding material of the to-be-cast forging piece at various temperatures through a big data network;
establishing a plastic change curve chart based on the plastic deformation capacity of the corresponding material of the to-be-cast forging piece at each temperature;
obtaining the range of plastic deformation capacity required by the forge piece to be cast;
and obtaining the casting and forging temperature area range corresponding to the plastic deformation capacity range required by the to-be-cast and forged piece from the plastic change curve graph.
Further, in a preferred embodiment of the present invention, the obtaining a real-time temperature value in the casting and forging integrated molding machine, and obtaining the plastic deformation capability of the to-be-cast forging piece based on the casting and forging temperature area range and the real-time temperature value in the casting and forging integrated molding machine specifically includes the following steps:
acquiring a real-time temperature value in a casting and forging integrated molding machine, and judging whether the real-time temperature value is within the range of the casting and forging temperature area;
and if the real-time temperature value is within the range of the casting and forging temperature area, obtaining the plastic deformation capacity below the real-time temperature from the plastic change curve.
Further, in a preferred embodiment of the present invention, the determining the impact force range of the punch according to the plastic deformation capability of the to-be-forged piece specifically includes the following steps:
obtaining processing drawing parameters of a to-be-cast forging piece, and establishing a to-be-cast forging piece processing model based on the processing drawing parameters;
carrying out stress analysis on the processing model of the to-be-cast forging piece according to the plastic deformation capacity of the to-be-cast forging piece so as to obtain yield limit stress values and initial yield stress values under various temperatures;
and obtaining the impact force range of the punching head based on the yield limit stress value and the initial yield stress value.
Further, in a preferred embodiment of the present invention, the obtaining of the impact force range of the punch head based on the yield limit stress value and the initial yield stress value specifically includes the following steps:
acquiring the cross sectional area of a region to be processed in the processing model of the to-be-cast forging piece, calculating the limit impact force of one or more stamping heads based on the yield limit stress value and the cross sectional area of the region to be processed, and selecting the minimum limit impact force from the limit impact force as first impact force information;
calculating one or more initial impact forces based on the initial yield stress value and the cross-sectional area of the region to be processed, and selecting the minimum initial impact force from the initial impact forces as second impact force information;
and obtaining the impact force range of the stamping head based on the first impact force information and the second impact force information.
Further, in a preferred embodiment of the present invention, the production control method of the cast-and-forged integrated molding machine further includes the following steps:
acquiring the deformation quantity of the impact force range acting on the to-be-cast forging piece through a big data network, and establishing a deformation quantity database;
acquiring the impact force of the current stamping head, and guiding the impact force into the deformation amount database to obtain a real-time deformation amount;
calculating the difference value between the real-time deformation quantity and a preset deformation quantity to obtain a residual deformation quantity;
and obtaining the number of times of impact required by the stamping head based on the residual deformation amount.
A second aspect of the present invention provides a production control system for a casting and forging integrated-molding machine, the system including a memory and a processor, the memory including a production control method program for the casting and forging integrated-molding machine, the production control method program for the casting and forging integrated-molding machine, when executed by the processor, implementing the steps of:
acquiring the casting and forging processing parameter requirements of each position of a current to-be-cast and forged piece; the casting and forging processing parameters comprise strength values to be achieved by the to-be-cast and forged piece;
determining the casting and forging temperature area range of each position of the to-be-cast and forged piece based on the casting and forging processing parameter requirements to obtain one or more casting and forging temperature area ranges;
acquiring a real-time temperature value in the casting and forging integrated molding machine, and acquiring the plastic deformation capacity of the to-be-cast and forged piece based on the casting and forging temperature area range and the real-time temperature value in the casting and forging integrated molding machine;
determining the impact force range of the stamping head according to the plastic deformation capacity of the to-be-cast forging piece;
and transmitting the impact force of the stamping head to a control terminal of the casting and forging integrated forming machine.
Further, in a preferred embodiment of the present invention, the determining of the casting and forging temperature range of each position of the to-be-cast and forged piece based on the casting and forging processing parameter requirement specifically includes the following steps:
acquiring the plastic deformation capacity of the corresponding material of the to-be-cast forging piece at various temperatures through a big data network;
establishing a plastic change curve chart based on the plastic deformation capacity of the corresponding material of the to-be-cast forging piece at each temperature;
obtaining the range of plastic deformation capacity required by the forge piece to be cast;
and obtaining the casting and forging temperature area range corresponding to the plastic deformation capacity range required by the to-be-cast and forged piece from the plastic change curve graph.
Further, in a preferred embodiment of the present invention, the determining the impact force range of the punch according to the plastic deformation capability of the to-be-forged piece specifically includes the following steps:
obtaining processing drawing parameters of a to-be-cast forging piece, and establishing a to-be-cast forging piece processing model based on the processing drawing parameters;
carrying out stress analysis on the processing model of the to-be-cast forging piece according to the plastic deformation capacity of the to-be-cast forging piece so as to obtain yield limit stress values and initial yield stress values under various temperatures;
and obtaining the impact force range of the punching head based on the yield limit stress value and the initial yield stress value.
Further, in a preferred embodiment of the present invention, the obtaining of the impact force range of the punch head based on the yield limit stress value and the initial yield stress value specifically includes the following steps:
acquiring the cross sectional area of a region to be processed in the processing model of the to-be-cast forging piece, calculating the limit impact force of one or more stamping heads based on the yield limit stress value and the cross sectional area of the region to be processed, and selecting the minimum limit impact force from the limit impact force as first impact force information;
calculating one or more initial impact forces based on the initial yield stress value and the cross-sectional area of the region to be processed, and selecting the minimum initial impact force from the initial impact forces as second impact force information;
and obtaining the impact force range of the stamping head based on the first impact force information and the second impact force information.
The invention solves the defects in the background technology and can achieve the following technical effects:
the invention obtains the real-time temperature value in the casting and forging integrated forming machine by obtaining the casting and forging parameter requirements of each position of the current casting and forging piece to be cast and forged, determining the casting and forging temperature area range of each position of the casting and forging piece to be cast and forged based on the casting and forging parameter requirements, obtaining one or more casting and forging temperature area ranges, and obtaining the plastic deformation capacity of the to-be-cast forging piece based on the casting and forging temperature area range and the real-time temperature value in the casting and forging integrated molding machine, the impact force range of the stamping head is determined according to the plastic deformation capacity of the to-be-cast forging piece, so that the impact force does not exceed the limit stamping bearing capacity range of the to-be-cast forging piece, the casting and forging process is controlled according to the temperature change condition in the casting and forging integrated forming machine, therefore, the phenomenon that the to-be-cast forging piece is easy to break in the casting and forging process is effectively avoided, and the processing cost of the to-be-cast forging piece in the casting and forging process is reduced.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings of the embodiments can be obtained according to the drawings without creative efforts.
Fig. 1 shows a flowchart of a specific method of a production control method of a cast-and-forged one-piece molding machine;
FIG. 2 illustrates a flowchart of a method for obtaining a range of casting temperature regions;
FIG. 3 shows a flow chart of a method for obtaining the plastic deformation capability of a forging to be cast;
FIG. 4 illustrates a flow chart of a method of determining an impact force range of a punch head;
FIG. 5 illustrates a flow chart of a particular method of determining an impact force range of a punch head;
FIG. 6 shows a flow chart of a method of obtaining the number of impacts required by the punch;
fig. 7 shows a system block diagram of a production control system of the cast-and-forged integrated molding machine.
Detailed Description
In order that the above objects, features and advantages of the present invention can be more clearly understood, a more particular description of the invention will be rendered by reference to the appended drawings. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore the scope of the present invention is not limited by the specific embodiments disclosed below.
The invention provides a production control method of a casting and forging integrated forming machine, which comprises the following steps:
s102, acquiring the casting and forging processing parameter requirements of all positions of the current to-be-cast and forged piece; the casting and forging processing parameters comprise strength values to be achieved by the to-be-cast and forged piece;
s104, determining the casting and forging temperature area range of each position of the to-be-cast and forged piece based on the casting and forging processing parameter requirements to obtain one or more casting and forging temperature area ranges;
s106, acquiring a real-time temperature value in the casting and forging integrated forming machine, and acquiring the plastic deformation capacity of the to-be-cast forging piece based on the casting and forging temperature area range and the real-time temperature value in the casting and forging integrated forming machine;
s108, determining the impact force range of the stamping head according to the plastic deformation capacity of the to-be-cast forging piece;
and S110, transmitting the impact force of the stamping head to a control terminal of the casting and forging integrated forming machine.
It should be noted that there may be a plurality of positions to be subjected to casting, and the mechanical properties of the to-be-cast forging are enhanced by casting the positions, but the strength values required to be achieved at different positions are also inconsistent due to the requirements of the casting parameters. On the other hand, generally speaking, in addition to the isothermal casting and forging technology, a casting and forging integrated forming machine for heating a to-be-cast and forged piece is required, and as the temperature in the casting and forging integrated forming machine is continuously increased, the corresponding plastic property of the to-be-cast and forged piece is also changed, so that the plastic property of the to-be-cast and forged piece is changed, and the impact force which can be borne by the to-be-cast and forged piece is changed. And acquiring a real-time temperature value in the casting and forging integrated molding machine through a temperature sensor or an infrared temperature measuring sensor.
Further, in a preferred embodiment of the present invention, the determining of the casting and forging temperature range of each position of the to-be-cast and forged piece based on the casting and forging processing parameter requirement specifically includes the following steps:
s202, acquiring the plastic deformation capacity of the material corresponding to the to-be-cast forging piece at various temperatures through a big data network;
s204, establishing a plastic change curve graph based on the plastic deformation capacity of the material corresponding to the to-be-cast forging piece at each temperature;
s206, acquiring the range of plastic deformation capacity required by the to-be-cast forging piece;
and S208, obtaining the casting and forging temperature area range corresponding to the plastic deformation capacity range required by the to-be-cast and forged piece from the plastic change curve chart.
It should be noted that, because the temperature in the casting and forging integrated molding machine changes, the metal plasticity changes, the to-be-cast and forged pieces made of different materials have different metal plasticity changing conditions, and in the process of the metal plasticity changing continuously, the higher the plasticity is, the lower the brittleness is. In the temperature rise process of the to-be-cast forging piece, different temperature environments have different plasticity, the property also indicates that different materials have different suitable casting and forging temperature area ranges, and the to-be-cast forging piece reaches the suitable casting and forging temperature within the casting and forging temperature area ranges. The temperature of the to-be-cast forging piece is constantly changed in the casting and forging process, and when the internal real-time temperature is not within the casting and forging area range, the real-time temperature is the temperature which does not accord with the casting and forging; the plastic change curves can reflect the plastic change curves of the corresponding materials of the to-be-cast and forged piece under various temperatures, so that a region range suitable for the casting and forging temperature is selected, and whether the casting and forging conditions are met can be effectively and automatically selected according to the temperature change in the casting and forging integrated machine.
Further, in a preferred embodiment of the present invention, the obtaining a real-time temperature value in the casting and forging integrated molding machine, and obtaining the plastic deformation capability of the to-be-cast forging piece based on the casting and forging temperature area range and the real-time temperature value in the casting and forging integrated molding machine specifically includes the following steps:
s302, acquiring a real-time temperature value in the casting and forging integrated molding machine, and judging whether the real-time temperature value is within the range of the casting and forging temperature area;
and S304, if the real-time temperature value is within the range of the casting temperature area, obtaining the plastic deformation capacity below the real-time temperature from a plastic change curve.
Further, in a preferred embodiment of the present invention, the determining the impact force range of the punch according to the plastic deformation capability of the to-be-forged piece specifically includes the following steps:
s402, obtaining the processing drawing parameters of the to-be-cast forging piece, and establishing a to-be-cast forging piece processing model based on the processing drawing parameters;
s404, performing stress analysis on the processing model of the to-be-cast forging piece according to the plastic deformation capacity of the to-be-cast forging piece to obtain yield limit stress values and initial yield stress values under various temperatures;
and S406, obtaining the impact force range of the punching head based on the yield limit stress value and the initial yield stress value.
It should be noted that the processing drawing parameters can be obtained from a processing drawing, the processing drawing parameters are the outline dimensions of the to-be-cast and forged piece, so that a cast and forged piece processing model is established by using three-dimensional modeling software (such as AutoCAD, SolidWorks, MASTERCAM and the like), the plasticity of the to-be-cast and forged piece is changed due to the continuous change of the temperature inside the cast and forged piece integrated forming machine, the stress analysis is performed on the cast and forged piece processing model according to the plastic deformation capability of the to-be-cast and forged piece by using the three-dimensional modeling software, the yield limit stress distribution and the initial yield stress value of the processing area of the to-be-cast and forged piece processing model are obtained, the yield limit stress value and the initial yield stress value are changed due to the continuous change of the temperature inside the cast and forged piece integrated forming machine, the yield limit stress value is a pressure value that the cast and forged piece can bear in a unit cross-sectional area, and the initial yield stress value is a pressure value that the cast and forged piece can just generate plastic deformation in the unit cross-sectional area .
Further, in a preferred embodiment of the present invention, the obtaining of the impact force range of the punch head based on the yield limit stress value and the initial yield stress value specifically includes the following steps:
s502, acquiring the cross sectional area of a region to be processed in the processing model of the to-be-cast forging piece, calculating the limit impact force of one or more stamping heads based on the yield limit stress value and the cross sectional area of the region to be processed, and selecting the minimum limit impact force from the limit impact force as first impact force information;
s504, calculating one or more initial impact forces based on the initial yield stress value and the cross-sectional area of the region to be processed, and selecting the minimum initial impact force from the initial impact forces as second impact force information;
and S506, obtaining the impact force range of the stamping head based on the first impact force information and the second impact force information.
It should be noted that, because the shape of the to-be-cast forging piece may be irregular, if the casting and forging region of the to-be-cast forging piece is in a step shape, the impact force of the to-be-machined region can be calculated according to the relationship between the pressure and the area, that is, the product of the cross-sectional area and the stress value of the to-be-cast forging piece is the impact force of the to-be-machined region, and because the cross-sectional areas of the to-be-cast forging region are different, the impact force that can be borne by the to-be-cast forging piece is not consistent, so that a minimum limit impact force value is selected from a plurality of limit impact forces as a maximum impact force critical value, and similarly, the minimum initial impact force value is selected from the minimum limit impact force values as an initial impact force critical value, and the range between the maximum impact force critical value and the initial impact force critical value is the impact force range of the punch head. The method can effectively avoid the phenomenon that the stamping head is easy to damage when the stamping head carries out the casting and forging on the areas to be cast and forged with different cross sections.
Further, in a preferred embodiment of the present invention, the production control method of the cast-and-forged integrated molding machine further includes the following steps:
s602, acquiring the deformation quantity of the impact force range acting on the to-be-cast forging piece through a big data network, and establishing a deformation quantity database;
s604, acquiring the impact force of the current stamping head, and guiding the impact force into the deformation quantity database to obtain a real-time deformation quantity;
s606, calculating the difference value between the real-time deformation quantity and a preset deformation quantity to obtain a residual deformation quantity;
and S608, obtaining the number of times the stamping head needs to impact based on the residual deformation amount.
It should be noted that, because the impact force range is already determined, an impact force value can be selected from the impact force range, and deformation amounts are inconsistent when different impact forces are used for casting and forging different areas of a to-be-cast and forged piece; the deformation quantity at the temperature under each impact force can be obtained from a big data network, the preset deformation quantity is the deformation quantity which needs to be achieved by the casting and forging piece, the deformation quantity is determined by the mechanical property which needs to be achieved by the casting and forging, the essence of the casting and forging is to change the molecular structure of the to-be-cast and forging piece so as to change the mechanical property of the to-be-cast and forging piece, and under the same impact force, the deformation quantity is a fixed value so as to obtain the number of times that the stamping head still needs to impact, so that the casting and forging piece can meet the casting and forging requirements.
In addition, the method also comprises the following steps:
acquiring initial impact force in a to-be-cast forging piece, and judging whether the initial impact force in the to-be-cast forging piece is smaller than second impact force information or not;
if the initial impact force is smaller than the preset value, acquiring the position of the initial impact force in the to-be-cast forging piece;
adjusting the contact position of the stamping head and the to-be-cast forging piece based on the position of the initial impact force in the to-be-cast forging piece, and generating the posture of the stamping head;
replanning the casting and forging route according to the posture of the stamping head;
in addition, replanning the casting and forging route according to the posture of the stamping head, specifically:
acquiring the position point of the posture of the stamping head, taking the position point of the posture of one stamping head as a first position point, taking the position point of the posture of the other stamping head as a second position point, and taking the position point of the Nth stamping head as an Nth position point;
combining the first location point, the second location point, and the Nth location point into a compensated casting route.
It should be noted that, because the shape of the punch is a mold designed according to the position of the die forging, during the die forging, a situation that the initial impact force in the to-be-forged piece is smaller than the second impact force may occur, which indicates that the impact force range of the punch is not applicable, and the to-be-forged position may be fractured by using any numerical value in the impact force range, so that the contact position between the punch and the to-be-forged piece is adjusted by adjusting the posture of the punch, for example, by adjusting the effective use length of the punch, the position where the initial impact force in the to-be-forged piece is smaller than the second impact force information is kept empty, and thus the fracture phenomenon at the position can be effectively avoided.
In addition, the method can further comprise the following steps:
acquiring image information in the casting and forging process, and establishing a real-time processing model based on the image information;
establishing an evaluation model based on a neural network, and introducing a pre-prepared processing model into the evaluation model to obtain a trained evaluation model;
importing the real-time processing model into the trained evaluation model to obtain an evaluation result;
and judging whether the evaluation result is a preset evaluation result, if so, acquiring the plastic deformation capability of the current real-time machining model, and adjusting the impact force of the stamping head according to the plastic deformation capability.
It should be noted that, since the plastic change in the temperature raising process may be non-uniform, that is, the change of each position of the material in the process of expansion with heat and contraction with cold is non-uniform, so that the change of the cross-sectional area is non-uniform, the image information in the casting and forging process can be obtained through an infrared imager, a distance sensor, etc., and the image information includes the dimension information of the region to be cast and forged in each direction in the three-dimensional space, so as to establish a real-time processing model by using three-dimensional modeling software, the pre-prepared processing model includes processing models with non-uniform deformation, such as processing models with high two sides and low middle, processing models with high middle deformation and low two sides, so as to obtain the actual deformation status of the real-time processing model, which is the evaluation result, so as to obtain the processing models with high two sides and low middle deformation, the processing models with high middle deformation and low sides according to the evaluation result, thereby adjusting the impact force of the punch head in a manner consistent with the above-described adjustment.
The second aspect of the present invention provides a production control system of a casting and forging integrated-molding machine, the system includes a memory 41 and a processor 62, the memory 41 includes a production control method program of the casting and forging integrated-molding machine, and the production control method program of the casting and forging integrated-molding machine, when executed by the processor, implements the following steps:
acquiring the casting and forging processing parameter requirements of each position of a current to-be-cast and forged piece; the casting and forging processing parameters comprise strength values to be achieved by the to-be-cast and forged piece;
determining the casting and forging temperature area range of each position of the to-be-cast and forged piece based on the casting and forging processing parameter requirements to obtain one or more casting and forging temperature area ranges;
acquiring a real-time temperature value in the casting and forging integrated molding machine, and acquiring the plastic deformation capacity of the to-be-cast and forged piece based on the casting and forging temperature area range and the real-time temperature value in the casting and forging integrated molding machine;
determining the impact force range of the stamping head according to the plastic deformation capacity of the to-be-cast forging piece;
and transmitting the impact force of the stamping head to a control terminal of the casting and forging integrated forming machine.
It should be noted that there may be a plurality of positions to be subjected to casting, and the mechanical properties of the to-be-cast forging are enhanced by casting the positions, but the strength values required to be achieved at different positions are also inconsistent due to the requirements of the casting parameters. On the other hand, generally speaking, in addition to the isothermal casting and forging technology, a casting and forging integrated forming machine for heating a to-be-cast and forged piece is required, and as the temperature in the casting and forging integrated forming machine is continuously increased, the corresponding plastic property of the to-be-cast and forged piece is also changed, so that the plastic property of the to-be-cast and forged piece is changed, and the impact force which can be borne by the to-be-cast and forged piece is changed.
Further, in a preferred embodiment of the present invention, the determining of the casting and forging temperature range of each position of the to-be-cast and forged piece based on the casting and forging processing parameter requirement specifically includes the following steps:
acquiring the plastic deformation capacity of the corresponding material of the to-be-cast forging piece at various temperatures through a big data network;
establishing a plastic change curve chart based on the plastic deformation capacity of the corresponding material of the to-be-cast forging piece at each temperature;
obtaining the range of plastic deformation capacity required by the forge piece to be cast;
and obtaining the casting and forging temperature area range corresponding to the plastic deformation capacity range required by the to-be-cast and forged piece from the plastic change curve graph.
It should be noted that, because the temperature in the casting and forging integrated molding machine changes, the metal plasticity changes, the to-be-cast and forged pieces of different materials have different metal plasticity changes, and in the process of the metal plasticity changing continuously, as the higher the plasticity is, the lower the brittleness is, in the process of heating the to-be-cast and forged piece, different temperature environments have different plasticity, and different materials on the surface have different suitable casting and forging temperature range, which also means that within the casting and forging temperature range, the to-be-cast and forged piece reaches the suitable casting and forging temperature. The temperature of the to-be-cast forging piece is constantly changed in the casting and forging process, and when the internal real-time temperature is not within the casting and forging area range, the real-time temperature is the temperature which does not accord with the casting and forging; the plastic change curves can reflect the plastic change curves of the corresponding materials of the to-be-cast and forged piece under various temperatures, so that a region range suitable for the casting and forging temperature is selected, and whether the casting and forging conditions are met can be effectively and automatically selected according to the temperature change in the casting and forging integrated machine.
Further, in a preferred embodiment of the present invention, the obtaining a real-time temperature value in the casting and forging integrated molding machine, and obtaining the plastic deformation capability of the to-be-cast forging piece based on the casting and forging temperature area range and the real-time temperature value in the casting and forging integrated molding machine specifically includes the following steps:
acquiring a real-time temperature value in a casting and forging integrated molding machine, and judging whether the real-time temperature value is within the range of the casting and forging temperature area;
and if the real-time temperature value is within the range of the casting and forging temperature area, obtaining the plastic deformation capacity below the real-time temperature from the plastic change curve.
Further, in a preferred embodiment of the present invention, the determining the impact force range of the punch according to the plastic deformation capability of the to-be-forged piece specifically includes the following steps:
obtaining processing drawing parameters of a to-be-cast forging piece, and establishing a to-be-cast forging piece processing model based on the processing drawing parameters;
carrying out stress analysis on the processing model of the to-be-cast forging piece according to the plastic deformation capacity of the to-be-cast forging piece so as to obtain yield limit stress values and initial yield stress values under various temperatures;
and obtaining the impact force range of the punching head based on the yield limit stress value and the initial yield stress value.
It should be noted that the processing drawing parameters can be obtained from a processing drawing, the processing drawing parameters are the outline dimensions of the to-be-cast and forged piece, so that a cast and forged piece processing model is established by using three-dimensional modeling software (such as AutoCAD, SolidWorks, MASTERCAM and the like), the plasticity of the to-be-cast and forged piece is changed due to the continuous change of the temperature inside the cast and forged piece integrated forming machine, the stress analysis is performed on the cast and forged piece processing model according to the plastic deformation capability of the to-be-cast and forged piece by using the three-dimensional modeling software, the yield limit stress distribution and the initial yield stress value of the processing area of the to-be-cast and forged piece processing model are obtained, the yield limit stress value and the initial yield stress value are changed due to the continuous change of the temperature inside the cast and forged piece integrated forming machine, the yield limit stress value is a pressure value that the cast and forged piece can bear in a unit cross-sectional area, and the initial yield stress value is a pressure value that the cast and forged piece can just generate plastic deformation in the unit cross-sectional area .
Further, in a preferred embodiment of the present invention, the obtaining of the impact force range of the punch head based on the yield limit stress value and the initial yield stress value specifically includes the following steps:
acquiring the cross sectional area of a region to be processed in the processing model of the to-be-cast forging piece, calculating the limit impact force of one or more stamping heads based on the yield limit stress value and the cross sectional area of the region to be processed, and selecting the minimum limit impact force from the limit impact force as first impact force information;
calculating one or more initial impact forces based on the initial yield stress value and the cross-sectional area of the region to be processed, and selecting the minimum initial impact force from the initial impact forces as second impact force information;
and obtaining the impact force range of the stamping head based on the first impact force information and the second impact force information.
It should be noted that, because the shape of the to-be-cast forging piece may be irregular, if the casting and forging region of the to-be-cast forging piece is in a step shape, the impact force of the to-be-machined region can be calculated according to the relationship between the pressure and the area, and because the cross-sectional areas of the to-be-cast forging regions are different, the borne impact force of the to-be-cast forging piece is not consistent, so that a minimum limit impact force value is selected from a plurality of limit impact forces as a maximum impact force critical value, similarly, a minimum initial impact force is selected from the limit impact force values as an initial impact force critical value, and the range between the maximum impact force critical value and the initial impact force critical value is the impact force range of the punch head. The method can effectively avoid the phenomenon that the stamping head is easy to damage when the stamping head carries out the casting and forging on the areas to be cast and forged with different cross sections.
Further, in a preferred embodiment of the present invention, the production control method of the cast-and-forged integrated molding machine further includes the following steps:
acquiring the deformation quantity of the impact force range acting on the to-be-cast forging piece through a big data network, and establishing a deformation quantity database;
acquiring the impact force of the current stamping head, and guiding the impact force into the deformation amount database to obtain a real-time deformation amount;
calculating the difference value between the real-time deformation quantity and a preset deformation quantity to obtain a residual deformation quantity;
and obtaining the number of times of impact required by the stamping head based on the residual deformation amount.
It should be noted that, because different impact force ranges are already determined, an impact force value can be selected from the impact force ranges, and deformation amounts are inconsistent when different impact forces are used for casting and forging different areas of a to-be-cast and forged piece; the deformation quantity of each impact force at real-time temperature can be obtained from a big data network, the preset deformation quantity is the deformation quantity required by the forging and casting piece, and the deformation quantity is determined by the mechanical property required by the forging and casting, so that under the same impact force, the deformation quantity is a fixed value, and the times of impact required by the punching head are obtained.
In addition, the method also comprises the following steps:
acquiring initial impact force in a to-be-cast forging piece, and judging whether the initial impact force in the to-be-cast forging piece is smaller than second impact force information or not;
if the initial impact force is smaller than the preset value, acquiring the position of the initial impact force in the to-be-cast forging piece;
adjusting the contact position of the stamping head and the to-be-cast forging piece based on the position of the initial impact force in the to-be-cast forging piece, and generating the posture of the stamping head;
replanning the casting and forging route according to the posture of the stamping head;
in addition, replanning the casting and forging route according to the posture of the stamping head, specifically:
acquiring the position point of the posture of the stamping head, taking the position point of the posture of one stamping head as a first route, taking the position point of the posture of the other stamping head as a second route, and taking the position point of the nth stamping head as an Nth route;
combining the first route, the second route, and the Nth route into a compensated cast route.
It should be noted that, because the shape of the punch is a mold designed according to the position of the die forging, during the die forging, a situation that the initial impact force in the to-be-forged piece is smaller than the second impact force may occur, which indicates that the impact force range of the punch is not applicable, and the to-be-forged position may be fractured by using any numerical value in the impact force range, so that the contact position between the punch and the to-be-forged piece is adjusted by adjusting the posture of the punch, for example, by adjusting the effective use length of the punch, the position where the initial impact force in the to-be-forged piece is smaller than the second impact force information is kept empty, and thus the fracture phenomenon at the position can be effectively avoided.
In addition, the method can further comprise the following steps:
acquiring image information in the casting and forging process, and establishing a real-time processing model based on the image information;
establishing an evaluation model based on a neural network, and introducing a pre-prepared processing model into the evaluation model to obtain a trained evaluation model;
importing the real-time processing model into the trained evaluation model to obtain an evaluation result;
and judging whether the evaluation result is a preset evaluation result, if so, acquiring the plastic deformation capability of the current real-time machining model, and adjusting the impact force of the stamping head according to the plastic deformation capability.
It should be noted that, since the plastic change in the temperature raising process may be non-uniform, that is, the change of each position of the material in the process of expansion with heat and contraction with cold is non-uniform, so that the change of the cross-sectional area is non-uniform, the image information in the casting and forging process can be obtained through an infrared imager, a distance sensor, etc., and the image information includes the dimension information of the region to be cast and forged in each direction in the three-dimensional space, so as to establish a real-time processing model by using three-dimensional modeling software, the pre-prepared processing model includes processing models with non-uniform deformation, such as processing models with high two sides and low middle, processing models with high middle deformation and low two sides, so as to obtain the actual deformation status of the real-time processing model, which is the evaluation result, so as to obtain the processing models with high two sides and low middle deformation, the processing models with high middle deformation and low sides according to the evaluation result, thereby adjusting the impact force of the punch head in a manner consistent with the above-described adjustment.
In the several embodiments provided in the present application, it should be understood that the disclosed apparatus and method may be implemented in other ways. The above-described device embodiments are merely illustrative, for example, the division of the unit is only a logical functional division, and there may be other division ways in actual implementation, such as: multiple units or components may be combined, or may be integrated into another system, or some features may be omitted, or not implemented. In addition, the coupling, direct coupling or communication connection between the components shown or discussed may be through some interfaces, and the indirect coupling or communication connection between the devices or units may be electrical, mechanical or other forms.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units; can be located in one place or distributed on a plurality of network units; some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, all the functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may be separately regarded as one unit, or two or more units may be integrated into one unit; the integrated unit can be realized in a form of hardware, or in a form of hardware plus a software functional unit.
Those of ordinary skill in the art will understand that: all or part of the steps for realizing the method embodiments can be completed by hardware related to program instructions, the program can be stored in a computer readable storage medium, and the program executes the steps comprising the method embodiments when executed; and the aforementioned storage medium includes: a mobile storage device, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.
Alternatively, the integrated unit of the present invention may be stored in a computer-readable storage medium if it is implemented in the form of a software functional module and sold or used as a separate product. Based on such understanding, the technical solutions of the embodiments of the present invention may be essentially implemented or a part contributing to the prior art may be embodied in the form of a software product, which is stored in a storage medium and includes several instructions for enabling a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the methods of the embodiments of the present invention. And the aforementioned storage medium includes: a removable storage device, a ROM, a RAM, a magnetic or optical disk, or various other media that can store program code.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (6)
1. A production control method of a casting and forging integrated forming machine is characterized by comprising the following steps:
acquiring the casting and forging processing parameter requirements of each position of a current to-be-cast and forged piece; the casting and forging processing parameters comprise strength values to be achieved by the to-be-cast and forged piece;
determining the casting and forging temperature area range of each position of the to-be-cast and forged piece based on the casting and forging processing parameter requirements to obtain one or more casting and forging temperature area ranges;
acquiring a real-time temperature value in the casting and forging integrated molding machine, and acquiring the plastic deformation capacity of the to-be-cast and forged piece based on the casting and forging temperature area range and the real-time temperature value in the casting and forging integrated molding machine;
determining the impact force range of the stamping head according to the plastic deformation capacity of the to-be-cast forging piece;
transmitting the impact force of the stamping head to a control terminal of the casting and forging integrated forming machine;
determining the impact force range of the stamping head according to the plastic deformation capacity of the to-be-cast forging piece, and specifically comprising the following steps of:
obtaining processing drawing parameters of a to-be-cast forging piece, and establishing a to-be-cast forging piece processing model based on the processing drawing parameters;
carrying out stress analysis on the processing model of the to-be-cast forging piece according to the plastic deformation capacity of the to-be-cast forging piece so as to obtain yield limit stress values and initial yield stress values under various temperatures;
obtaining the impact force range of the stamping head based on the yield limit stress value and the initial yield stress value;
obtaining the impact force range of the stamping head based on the yield limit stress value and the initial yield stress value, and specifically comprising the following steps:
acquiring the cross sectional area of a region to be processed in the processing model of the to-be-cast forging piece, calculating the limit impact force of one or more stamping heads based on the yield limit stress value and the cross sectional area of the region to be processed, and selecting the minimum limit impact force from the limit impact force as first impact force information;
calculating one or more initial impact forces based on the initial yield stress value and the cross-sectional area of the region to be processed, and selecting the minimum initial impact force from the initial impact forces as second impact force information;
and obtaining the impact force range of the stamping head based on the first impact force information and the second impact force information.
2. The production control method of the cast-forging integrated forming machine according to claim 1, wherein the casting-forging temperature region range of each position of the to-be-cast-forged piece is determined based on the casting-forging processing parameter requirement, and the method specifically comprises the following steps:
acquiring the plastic deformation capacity of the corresponding material of the to-be-cast forging piece at various temperatures through a big data network;
establishing a plastic change curve chart based on the plastic deformation capacity of the corresponding material of the to-be-cast forging piece at each temperature;
obtaining the range of plastic deformation capacity required by the forge piece to be cast;
and obtaining the casting and forging temperature area range corresponding to the plastic deformation capacity range required by the to-be-cast and forged piece from the plastic change curve graph.
3. The production control method of the cast-forging integrated forming machine according to claim 1, wherein a real-time temperature value in the cast-forging integrated forming machine is obtained, and the plastic deformation capacity of the to-be-cast forging piece is obtained based on the cast-forging temperature area range and the real-time temperature value in the cast-forging integrated forming machine, and the method specifically comprises the following steps:
acquiring a real-time temperature value in a casting and forging integrated molding machine, and judging whether the real-time temperature value is within the range of the casting and forging temperature area;
and if the real-time temperature value is within the range of the casting and forging temperature area, obtaining the plastic deformation capacity below the real-time temperature from the plastic change curve.
4. The production control method of the cast-forging integrated-forming machine according to claim 1, characterized by further comprising the steps of:
acquiring the deformation quantity of the impact force range acting on the to-be-cast forging piece through a big data network, and establishing a deformation quantity database;
acquiring the impact force of the current stamping head, and guiding the impact force into the deformation amount database to obtain a real-time deformation amount;
calculating the difference value between the real-time deformation quantity and a preset deformation quantity to obtain a residual deformation quantity;
and obtaining the number of times of impact required by the stamping head based on the residual deformation amount.
5. A production control system of a casting and forging integrated forming machine is characterized by comprising a memory and a processor, wherein the memory comprises a production control method program of the casting and forging integrated forming machine, and the production control method program of the casting and forging integrated forming machine realizes the following steps when being executed by the processor:
acquiring the casting and forging processing parameter requirements of each position of a current to-be-cast and forged piece; the casting and forging processing parameters comprise strength values to be achieved by the to-be-cast and forged piece;
determining the casting and forging temperature area range of each position of the to-be-cast and forged piece based on the casting and forging processing parameter requirements to obtain one or more casting and forging temperature area ranges;
acquiring a real-time temperature value in the casting and forging integrated molding machine, and acquiring the plastic deformation capacity of the to-be-cast and forged piece based on the casting and forging temperature area range and the real-time temperature value in the casting and forging integrated molding machine;
determining the impact force range of the stamping head according to the plastic deformation capacity of the to-be-cast forging piece;
transmitting the impact force of the stamping head to a control terminal of the casting and forging integrated forming machine;
determining the impact force range of the stamping head according to the plastic deformation capacity of the to-be-cast forging piece, and specifically comprising the following steps of:
obtaining processing drawing parameters of a to-be-cast forging piece, and establishing a to-be-cast forging piece processing model based on the processing drawing parameters;
carrying out stress analysis on the processing model of the to-be-cast forging piece according to the plastic deformation capacity of the to-be-cast forging piece so as to obtain yield limit stress values and initial yield stress values under various temperatures;
obtaining the impact force range of the stamping head based on the yield limit stress value and the initial yield stress value;
obtaining the impact force range of the stamping head based on the yield limit stress value and the initial yield stress value, and specifically comprising the following steps:
acquiring the cross sectional area of a region to be processed in the processing model of the to-be-cast forging piece, calculating the limit impact force of one or more stamping heads based on the yield limit stress value and the cross sectional area of the region to be processed, and selecting the minimum limit impact force from the limit impact force as first impact force information;
calculating one or more initial impact forces based on the initial yield stress value and the cross-sectional area of the region to be processed, and selecting the minimum initial impact force from the initial impact forces as second impact force information;
and obtaining the impact force range of the stamping head based on the first impact force information and the second impact force information.
6. The production control system of the cast-forging integrated forming machine as claimed in claim 5, wherein the step of determining the casting-forging temperature region range of each position of the to-be-cast-forged piece based on the casting-forging processing parameter requirement specifically comprises the following steps:
acquiring the plastic deformation capacity of the corresponding material of the to-be-cast forging piece at various temperatures through a big data network;
establishing a plastic change curve chart based on the plastic deformation capacity of the corresponding material of the to-be-cast forging piece at each temperature;
obtaining the range of plastic deformation capacity required by the forge piece to be cast;
and obtaining the casting and forging temperature area range corresponding to the plastic deformation capacity range required by the to-be-cast and forged piece from the plastic change curve graph.
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| JP6455880B2 (en) * | 2015-01-21 | 2019-01-23 | 学校法人早稲田大学 | Casting simulation method |
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