Intelligent control method and device for vacuum isothermal forging blank heating furnace

Abstract

The invention provides an intelligent control method and device for a vacuum isothermal forging blank heating furnace, and relates to the field of high-end intelligent device manufacturing. The vacuum isothermal forging blank heating furnace further comprises a blank containing chamber and a blank heating chamber. The blank heating chamber is communicated with the blank placing chamber through a lower end opening; a tray for placing blanks is arranged in the blank placing chamber, and a liftable ejector rod is mounted at the bottom of the tray; the ejector rod is used for lifting and driving blanks placed in the tray to enter or leave the blank heating chamber; the blank heating chamber is used for heating blanks in a vacuum environment; the method comprises the steps that in the process of controlling an ejector rod to ascend, whether the position of a blank placed on a tray deviates or not is detected; and the ejector rod is controlled to stop rising based on the deviation of the position of the blank placed on the tray. The method is suitable for the blank heating process of vacuum isothermal forging and is used for improving the intelligent level of a heating furnace.

Description

Technical Field

[0001] The present application relates to the field of high-end intelligent device manufacturing, and in particular to an intelligent control method and device for a vacuum isothermal forging billet heating furnace. Background Art

[0002] Vacuum forging is a metal forging process performed in a vacuum environment. Since there is almost no air or other impurities in a vacuum environment, the metal is prevented from reacting with gases such as oxygen and nitrogen during heating and forging, reducing the generation of defects such as oxidation and decarburization. It is also beneficial to remove gas impurities in the metal and improve the quality of forgings.

[0003] In the vacuum forging solution provided by the related art, the blank needs to be taken out of the heating furnace after being heated in the heating furnace, and then reloaded into the vacuum forging chamber for forging.

[0004] After being taken out of the heating furnace, the temperature of the blank drops rapidly, and coarse grains are easily formed in the surface area of ​​the blank, which makes it easy for the blank to fail to achieve superplastic forming. Summary of the invention

[0005] The present application provides an intelligent control method and device for a vacuum isothermal forging billet heating furnace, which can provide an intelligent control method for a vacuum isothermal forging billet heating furnace. The vacuum isothermal forging billet heating furnace can heat the billet in a vacuum environment, is convenient for docking with a vacuum forging chamber without breaking the vacuum, and improves the intelligence level of the vacuum isothermal forging billet heating furnace.

[0006] In the first aspect, the present application provides an intelligent control method for a vacuum isothermal forging billet heating furnace, which is applied to an intelligent control device of a vacuum isothermal forging billet heating furnace; the vacuum isothermal forging billet heating furnace also includes a billet placement chamber and a billet heating chamber arranged above the billet placement chamber; the billet heating chamber is connected to the billet placement chamber through a lower end opening; a tray for placing billets is provided in the billet placement chamber, and a liftable push rod is installed at the bottom of the tray; the push rod is used to lift and drive the billet placed in the tray to enter or leave the billet heating chamber through the lower end opening of the billet heating chamber; the billet heating chamber is used to heat the billet in a vacuum environment; the method includes: in the process of controlling the rise of the push rod, detecting whether the position of the billet placed on the tray is offset; based on the offset of the position of the billet placed on the tray, controlling the push rod to stop rising.

[0007] In the intelligent control method of the vacuum isothermal forging billet heating furnace provided in the present application, the vacuum isothermal forging billet heating furnace includes a billet placement chamber and a billet heating chamber arranged above the billet placement chamber, and the top rod in the billet placement chamber can lift and drive the billet placed in the tray to enter the billet heating chamber through the lower port of the billet heating chamber, and the billet heating chamber can be used to heat the billet in a vacuum environment. In this way, it is convenient for the billet heating furnace to directly dock with the vacuum forging chamber without breaking the vacuum, thereby improving the transfer efficiency, avoiding the rapid drop in billet temperature leading to the formation of coarse grains in the surface area of ​​the billet, and making it easy for the billet to achieve superplastic forming.

[0008] Furthermore, the intelligent control device in the present application can detect whether the position of the blank placed on the tray is offset during the process of controlling the rise of the push rod; based on the offset of the position of the blank placed on the tray, the push rod is controlled to stop rising. When the push rod rises, the blank is driven to enter the blank heating chamber through the lower end opening of the blank heating chamber. If the position of the blank is offset, it may be pushed by the push rod and collide with the blank heating chamber. At this time, controlling the push rod to stop rising can avoid the collision between the blank and the blank heating chamber, thereby improving the intelligence of the vacuum isothermal forging blank heating furnace.

[0009] Optionally, a plurality of pressure sensors are arranged around the top edge of the push rod; detecting whether the position of the blank placed on the tray is shifted comprises: determining that the position of the blank placed on the tray is shifted based on the pressure changes detected by the plurality of pressure sensors.

[0010] Optionally, based on the change in pressure detected by multiple pressure sensors, determining that the position of the blank placed on the tray has shifted includes: when the pressure detected by multiple pressure sensors changes and the change value is greater than a pressure threshold, determining that the position of the blank placed on the tray has shifted.

[0011] In the intelligent control method of the vacuum isothermal forging billet heating furnace provided in the present application, the intelligent control device can determine that the position of the billet placed on the tray is offset only when the pressure detected by multiple pressure sensors changes and the change value is greater than the pressure threshold. Due to the unstable speed of the motor driving the push rod during the rise of the push rod, or the pressure fluctuation of the hydraulic system driving the push rod, the pressure detected by the pressure sensor may fluctuate in a small range. The intelligent control device determines that the position of the billet is offset only when the pressure change value is large, thereby avoiding the interference caused by the aforementioned small-range pressure fluctuations and improving the accuracy of judging the offset of the billet position.

[0012] Optionally, a plurality of reflective photoelectric sensors are arranged around the lower end opening of the blank heating chamber, and each reflective photoelectric sensor is used to emit and receive light signals in a direction perpendicular to the bottom plate of the blank placement chamber; the bottom plate of the blank placement chamber is parallel to the tray; and detecting whether the position of the blank placed on the tray is offset, including: determining that the position of the blank on the tray is offset based on that the light signal of any one of the reflective photoelectric sensors is blocked.

[0013] Optionally, the method further includes: based on the blank being placed on the tray and the light signals of the plurality of reflective photoelectric sensors being not blocked, controlling the ejector pin to rise.

[0014] Optionally, when the push rod is not raised, the tray is located in the central through hole of the material tray; a three-jaw chuck is installed on the edge of the material tray; the center of the three-jaw chuck, the center of the material tray, and the center of the lower end opening of the billet heating chamber are located on the same plumb line; the method also includes: based on the fact that the clamping force of the three jaws of the three-jaw chuck on the billet is within a preset clamping force range, and the maximum deviation value of the displacement of the three jaws of the three-jaw chuck is less than the difference threshold, the three jaws of the three-jaw chuck are controlled to open to the maximum opening, and the push rod is controlled to rise.

[0015] Optionally, after controlling the push rod to stop rising, the method also includes: controlling the push rod to descend until the tray is flush with the center through hole of the tray; controlling the three-jaw chuck to clamp the blank according to a preset displacement speed until the clamping force of the three jaws of the three-jaw chuck on the blank is within a preset clamping force range, and the maximum deviation value of the displacement of the three jaws of the three-jaw chuck is less than the difference threshold.

[0016] In the intelligent control method of the vacuum isothermal forging billet heating furnace provided in the embodiment of the present application, the intelligent control device can also control the push rod to descend until the tray is flush with the center through hole of the tray; control the three-jaw chuck to clamp the billet according to the preset displacement speed until the clamping force of the three jaws of the three-jaw chuck on the billet is within the preset clamping force range, and the maximum deviation value of the displacement of the three jaws of the three-jaw chuck is less than the difference threshold. At this time, the clamping force of the three jaws is moderate and the displacement is relatively uniform. It can be considered that the billet is pushed back to the center position of the tray by the jaws, thereby realizing the control of the three-jaw chuck to automatically adjust the position of the billet.

[0017] Optionally, the method further comprises: outputting a prompt message; the prompt message is used to prompt that the position of the blank placed on the tray is offset.

[0018] In a second aspect, the present application provides an intelligent control device for a vacuum isothermal forging billet heating furnace, the intelligent control device comprising: a detection module and a processing module. The detection module is used to detect whether the position of the billet placed on the tray is offset during the process of controlling the rise of the push rod; the processing module is used to control the push rod to stop rising based on the position offset of the billet placed on the tray.

[0019] Optionally, a plurality of pressure sensors are arranged around the top edge of the push rod; the detection module is specifically used to determine that the position of the blank placed on the tray is offset based on the pressure change detected by the plurality of pressure sensors.

[0020] Optionally, the detection module is specifically configured to determine that the position of the blank placed on the tray is shifted when the pressure detected by the plurality of pressure sensors changes and the change value is greater than a pressure threshold.

[0021] Optionally, a plurality of reflective photoelectric sensors are arranged around the lower opening of the blank heating chamber, each reflective photoelectric sensor is used to emit and receive light signals in a direction perpendicular to the bottom plate of the blank placement chamber; the bottom plate of the blank placement chamber is parallel to the tray; and the detection module is specifically used to determine that the position of the blank on the tray is offset based on the light signal of any reflective photoelectric sensor being blocked.

[0022] Optionally, the processing module is further used to control the lift rod to rise based on the blank being placed on the tray and the light signals of the multiple reflective photoelectric sensors are not blocked.

[0023] Optionally, when the push rod is not raised, the tray is located in the central through hole of the material tray; a three-jaw chuck is installed on the edge of the material tray; the center of the three-jaw chuck, the center of the material tray, and the center of the lower end opening of the billet heating chamber are located on the same plumb line; the processing module is also used to control the three jaws of the three-jaw chuck to open to the maximum opening and control the rise of the push rod based on the fact that the clamping force of the three jaws of the three-jaw chuck on the billet is within a preset clamping force range and the maximum deviation value of the displacement of the three jaws of the three-jaw chuck is less than the difference threshold.

[0024] Optionally, the processing module is also used to control the push rod to descend after it stops rising until the tray is flush with the center through hole of the tray; control the three-jaw chuck to clamp the blank according to a preset displacement speed until the clamping force of the three jaws of the three-jaw chuck on the blank is within a preset clamping force range, and the maximum deviation value of the displacement of the three jaws of the three-jaw chuck is less than the difference threshold.

[0025] Optionally, the processing module is further used to output prompt information; the prompt information is used to indicate that the position of the blank placed on the tray is offset.

[0026] In a third aspect, the present application provides a computer program product, comprising: computer instructions; when the computer instructions are executed on an intelligent control device, the intelligent control device implements the method described in the first aspect above.

[0027] In a fourth aspect, the present application provides an intelligent control device for a vacuum isothermal forging billet heating furnace, the intelligent control device comprising: a processor and a memory; the memory stores instructions executable by the processor; when the processor is configured to execute instructions, the intelligent control device implements the method described in the first aspect above.

[0028] In a fifth aspect, the present application provides a readable storage medium, which includes: software instructions; when the software instructions are executed in an intelligent control device, the intelligent control device implements the method described in the first aspect above.

[0029] The beneficial effects of the second to fifth aspects mentioned above can be referred to the first aspect and will not be elaborated on again. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0031] Figure 1 A schematic diagram of the composition of an intelligent control system for a vacuum isothermal forging blank heating furnace provided in an embodiment of the present application; Figure 2 A schematic diagram of the composition of a vacuum isothermal forging blank heating furnace 100 provided in an embodiment of the present application; Figure 3 A schematic flow chart of an intelligent control method for a vacuum isothermal forging blank heating furnace provided in an embodiment of the present application; Figure 4 A schematic diagram of the composition of an intelligent control device for a vacuum isothermal forging blank heating furnace provided in an embodiment of the present application; Figure 5 A schematic diagram of the composition of another intelligent control device for a vacuum isothermal forging billet heating furnace provided in an embodiment of the present application. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0033] It should be noted that, in the embodiments of the present application, words such as "exemplarily" or "for example" are used to indicate examples, illustrations or descriptions. Any embodiment or design described as "exemplarily" or "for example" in the embodiments of the present application should not be interpreted as being more preferred or more advantageous than other embodiments or designs. Specifically, the use of words such as "exemplarily" or "for example" is intended to present related concepts in a specific way.

[0034] In order to facilitate the clear description of the technical solutions of the embodiments of the present application, in the embodiments of the present application, the words "first", "second", etc. are used to distinguish the same items or similar items with basically the same functions and effects. Those skilled in the art can understand that the words "first", "second", etc. are not limiting the quantity and execution order.

[0035] Vacuum forging is a metal forging process performed in a vacuum environment. Since there is almost no air or other impurities in a vacuum environment, the metal is prevented from reacting with gases such as oxygen and nitrogen during heating and forging, reducing the generation of defects such as oxidation and decarburization. It is also beneficial to remove gas impurities in the metal and improve the quality of forgings.

[0036] In the vacuum forging solution provided by the related art, the blank needs to be taken out of the heating furnace after being heated in the heating furnace, and then reloaded into the vacuum forging chamber for forging.

[0037] After being taken out of the heating furnace, the temperature of the blank drops rapidly, and coarse grains are easily formed in the surface area of ​​the blank, which makes it easy for the blank to fail to achieve superplastic forming.

[0038] Based on this, an embodiment of the present application provides an intelligent control method and device for a vacuum isothermal forging billet heating furnace, which can provide an intelligent control method for a vacuum isothermal forging billet heating furnace. The vacuum isothermal forging billet heating furnace can heat the billet in a vacuum environment, which is convenient for docking with a vacuum forging chamber without breaking the vacuum, and improves the intelligence level of the vacuum isothermal forging billet heating furnace.

[0039] The following is an introduction with reference to the accompanying drawings.

[0040] Figure 1 This is a schematic diagram of the composition of the intelligent control system of the vacuum isothermal forging billet heating furnace provided in the embodiment of the present application. Figure 1As shown, the intelligent control system may include: a vacuum isothermal forging billet heating furnace 100 and an intelligent control device 200. The intelligent control device 200 is in communication connection with the vacuum isothermal forging billet heating furnace 100 or specific components in the vacuum isothermal forging billet heating furnace 100.

[0041] Figure 2 The schematic diagram of the composition of the vacuum isothermal forging blank heating furnace 100 provided in the embodiment of the present application. Figure 2 As shown, the vacuum isothermal forging billet heating furnace 100 may include: a billet placement chamber 10 and a billet heating chamber 20, wherein the billet heating chamber 20 is disposed above the billet placement chamber 10, and the billet heating chamber 20 is connected to the billet placement chamber through a lower end opening.

[0042] The blank placement chamber 10 includes: a bottom plate 11, a furnace door 12, a vacuum gate 13 and a lower furnace shell ( Figure 2 The top of the blank placement chamber 10 is connected to the lower end opening of the blank heating chamber 20. The blank placement chamber 10 and the vacuum forging chamber 19 can be sealed and connected through a vacuum gate 13.

[0043] A tray 14 for placing the blank 30 is arranged in the middle of the blank placement chamber 10, and the tray 14 is supported on the bottom plate 11 by a bracket 15. A three-jaw chuck 16 for clamping and positioning the blank 30 is installed on the edge of the tray 14. A tray 17 for holding the bottom of the blank 30 (or for placing the blank) is installed in the central through hole of the tray 14, and a liftable ejector rod 18 is installed at the bottom of the tray 17, which passes through the bottom plate 11 and is sealed with the bottom plate 11. The ejector rod 18 is used to lift and drive the blank 30 placed in the tray 17 to enter or leave the blank heating chamber 20 through the lower end opening of the blank heating chamber 20.

[0044] The blank heating chamber 20 can be used to heat the blank 30 in a vacuum environment.

[0045] For example, the vacuum isothermal forging blank heating furnace 100 may further include a vacuum pumping unit ( Figure 2 The vacuum pumping unit may include a Roots pump and an expansion pump, and is connected to the blank heating chamber 10 and / or the blank heating chamber 20 through a vacuum pipe. The vacuum pumping unit may be used to vacuum the blank heating chamber 10 and / or the blank heating chamber 20.

[0046] The process of heating the blank 30 using the above-mentioned vacuum isothermal forging blank heating furnace 100 is as follows: open the furnace door 12, clamp the blank 30 by the robot and put it into the middle position of the tray 14 in the blank placement chamber 10, and then clamp the blank 30 by the three-jaw chuck 16 to center it on the tray 14 or the tray 17 (or make the center of the blank 30 the same as the center of the tray 17). Close the furnace door 12, evacuate the vacuum isothermal forging blank heating furnace 100, release the three-jaw chuck 16 after the vacuum degree reaches the preset vacuum degree threshold, and the push rod 18 pushes the tray 17 and the blank 30 on the tray 17 to rise into the blank heating chamber 20. The blank 30 is completely placed in the billet heating chamber 20 for heating. After the billet 30 is heated to the required heating temperature, the push rod 18 descends to return the billet 30 to its original position on the tray 14, and the vacuum gate 13 is opened. The blank 30 is fed to the blank placement chamber 10 through the feeding robot ( Figure 2 (not shown) the blank 30 is fed into the vacuum isothermal forging chamber 19 for forging.

[0047] In some possible embodiments, a plurality of reflective photoelectric sensors ( Figure 2 (not shown), each reflective photoelectric sensor is used to emit and receive light signals in a direction perpendicular to the bottom plate 11. Whether the light signal of the reflective photoelectric sensor is blocked can be used to detect whether the blank 30 is installed in place, and whether the position of the blank 30 placed in the tray 17 is offset when the top rod 18 rises to drive the blank 30 placed in the tray 17 to rise.

[0048] The intelligent control device 200 may be an electronic device with computing and processing functions such as a computer or server wirelessly connected to the vacuum isothermal forging billet heating furnace 100; or the intelligent control device 200 may also be a control unit disposed on the vacuum isothermal forging billet heating furnace 100 and wiredly connected to specific components of the vacuum isothermal forging billet heating furnace 100. The present application embodiment does not limit this.

[0049] The intelligent control device 200 can be used to intelligently control the components in the vacuum isothermal forging billet heating furnace 100. The specific process can be referred to the intelligent control method of the vacuum isothermal forging billet heating furnace provided in the following embodiment, which will not be repeated here.

[0050] The execution subject of the intelligent control method of the vacuum isothermal forging billet heating furnace provided in the embodiment of the present application is the intelligent control device of the vacuum isothermal forging billet heating furnace (for example, the above-mentioned intelligent control device 200). Optionally, the execution subject of the intelligent control method of the vacuum isothermal forging billet heating furnace may also be a processor (for example, a central processing unit (CPU)) in the aforementioned intelligent control device; or, the execution subject may also be a software system installed in the aforementioned intelligent control device for executing the intelligent control method; or, the execution subject may also be a functional module in the aforementioned intelligent control device for executing the intelligent control method, etc. The embodiment of the present application does not limit this.

[0051] For the sake of simplicity, the following will uniformly introduce the intelligent control method for the vacuum isothermal forging billet heating furnace provided in the embodiment of the present application by taking the intelligent control device as an example to execute the method.

[0052] Figure 3 The figure is a flow chart of the intelligent control method of the vacuum isothermal forging blank heating furnace provided in the embodiment of the present application. Figure 3 As shown, the method includes the following steps: S101. In the process of controlling the lift pin to rise, detect whether the position of the blank placed on the tray is offset.

[0053] In a possible implementation, a plurality of pressure sensors are arranged around the top edge of the push rod, and the intelligent control device can detect whether the position of the blank placed on the tray is offset based on the pressure detected by the pressure sensor. In this case, the above S101 can specifically include the following steps: Step 1a: Based on the change in pressure detected by a plurality of pressure sensors, it is determined that the position of the blank placed on the tray is shifted.

[0054] The pressure sensor may be a piezoresistive pressure sensor, a ceramic pressure sensor, a capacitive pressure sensor, or an optical fiber pressure sensor, etc. The embodiment of the present application does not limit the specific type of the pressure sensor.

[0055] Optionally, in the event that the pressure detected by the plurality of pressure sensors changes, the intelligent control device may directly trigger a determination that the position of the blank placed on the tray is offset and stop the lift of the ejector rod.

[0056] Optionally, when multiple pressure sensors detect a large change in pressure, the intelligent control device triggers to determine that the position of the blank placed on the tray is offset and stops the push rod from rising. In this case, the above step 1a may specifically include the following steps: Step 1.1a: When the pressure detected by the multiple pressure sensors changes and the change value is greater than the pressure threshold, it is determined that the position of the blank placed on the tray is offset.

[0057] The pressure threshold may be set to 5%, 8%, or 10% of the weight of the blank, etc. The embodiment of the present application does not limit the specific value of the pressure threshold.

[0058] For example, when the pressure detected by N pressure sensors among the multiple pressure sensors changes, and the change value is greater than the pressure threshold, the intelligent control device can determine that the position of the blank placed on the tray has an offset value.

[0059] Wherein, N is a positive integer, for example, N can be 1, 2, or 3. The embodiment of the present application does not limit the specific value of N.

[0060] Optionally, when the pressure detected by the plurality of pressure sensors changes and the change value is less than a pressure threshold, the intelligent control device may determine that the position of the blank placed on the tray has not shifted.

[0061] It should be noted that, when the pressure detected by the multiple pressure sensors changes and the change value is equal to the pressure threshold, the intelligent control device can determine that the position of the blank placed on the tray is shifted; or the intelligent control device can also determine that the position of the blank placed on the tray is not shifted. The embodiments of the present application are not limited to this.

[0062] In the intelligent control method of the vacuum isothermal forging billet heating furnace provided in the embodiment of the present application, the intelligent control device can determine that the position of the billet placed on the tray has shifted only when the pressure detected by multiple pressure sensors changes and the change value is greater than the pressure threshold. Due to the unstable speed of the motor driving the push rod during the rise of the push rod, or the pressure fluctuation of the hydraulic system driving the push rod, the pressure detected by the pressure sensor may fluctuate in a small range. The intelligent control device determines that the position of the billet has shifted only when the pressure change value is large, thereby avoiding the interference caused by the aforementioned small-range pressure fluctuations and improving the accuracy of judging the offset of the billet position.

[0063] In another possible implementation, as described above, a plurality of reflective photoelectric sensors may be arranged around the lower opening of the blank heating chamber, each reflective photoelectric sensor being used to emit and receive light signals in a direction perpendicular to the bottom plate of the blank placement chamber, and the bottom plate of the blank placement chamber may be understood to be parallel to the tray. In this case, the above S101 may specifically include the following steps: Step 1b: determining that the position of the blank on the tray is offset based on the light signal of any one of the reflective photoelectric sensors being blocked.

[0064] S102, based on the position deviation of the blank placed on the tray, control the ejector pin to stop rising.

[0065] In a possible implementation, in order to prevent the sudden stop of the ejector rod from causing the billet to shake and cause a greater displacement of the billet position, the intelligent control device can also control the ejector rod to gradually reduce the rising speed until the ejector rod stops rising. In this case, the above S102 can specifically include the following steps: Step 1c: Based on the positional deviation of the blank placed on the tray, the rising speed of the ejector pin is controlled to be reduced according to a preset speed change rate until the ejector pin stops rising.

[0066] Among them, the preset speed change rate can be set to -0.1m / s 2 、-0.2 m / s 2 , or -0.3 m / s 2 The embodiment of the present application does not limit the specific value of the preset speed change rate.

[0067] In the intelligent control method of the vacuum isothermal forging billet heating furnace provided in the embodiment of the present application, the vacuum isothermal forging billet heating furnace includes a billet placement chamber and a billet heating chamber arranged above the billet placement chamber, and the top rod in the billet placement chamber can lift and drive the billet placed in the tray to enter the billet heating chamber through the lower port of the billet heating chamber, and the billet heating chamber can be used to heat the billet in a vacuum environment. In this way, it is convenient for the billet heating furnace to directly dock with the vacuum forging chamber without breaking the vacuum, thereby improving the transfer efficiency, avoiding the rapid drop in billet temperature leading to the formation of coarse grains in the surface area of ​​the billet, and making it easy for the billet to achieve superplastic forming.

[0068] Furthermore, the intelligent control device in the present application can detect whether the position of the blank placed on the tray is offset during the process of controlling the rise of the push rod; based on the offset of the position of the blank placed on the tray, the push rod is controlled to stop rising. When the push rod rises, the blank is driven to enter the blank heating chamber through the lower end opening of the blank heating chamber. If the position of the blank is offset, it may be pushed by the push rod and collide with the blank heating chamber. At this time, controlling the push rod to stop rising can avoid the collision between the blank and the blank heating chamber, thereby improving the intelligence of the vacuum isothermal forging blank heating furnace.

[0069] In some possible embodiments, before controlling the ejector pin to start rising, the intelligent control device may also determine that the position of the blank is adjusted to a suitable position before controlling the ejector pin to rise.

[0070] In a possible implementation, as described above, (when the ejector pin is not raised) the tray is located in the central through hole of the material tray, a three-jaw chuck is installed on the edge of the material tray, and the center of the three-jaw chuck, the center of the material tray, and the center of the lower opening of the blank heating chamber can be understood to be located on the same plumb line. The intelligent control device can determine whether the position of the blank is appropriate based on the state of the claws in the three-jaw chuck. In this case, before the above S101, the method can also include the following steps: Step 1d: based on the fact that the clamping forces of the three jaws of the three-jaw chuck on the blank are within the preset clamping force range and the maximum deviation value of the displacement of the three jaws of the three-jaw chuck is less than the difference threshold, the three jaws of the three-jaw chuck are controlled to open to the maximum opening and the push rod is controlled to rise.

[0071] For example, the jaws of a three-jaw chuck may be provided with a pressure sensor and a displacement sensor, and the intelligent control device may use the pressure sensor and the displacement sensor provided on the jaws to determine the clamping force of the jaws on the blank and the displacement of the jaws.

[0072] In another possible implementation, as described above, a plurality of reflective photoelectric sensors may be provided around the lower opening of the blank heating chamber. In this case, the intelligent control device may control the lift of the ejector rod based on the blank being placed on the tray and the light signals of the plurality of reflective photoelectric sensors being unblocked.

[0073] For example, the intelligent control device can determine whether the blank is placed on the tray based on the pressure detected by the pressure sensor.

[0074] In some possible embodiments, after the push rod is controlled to stop rising, the intelligent control device may further output a prompt message, where the prompt message is used to indicate that the position of the blank placed on the tray is offset.

[0075] For example, the intelligent control device may have a communication connection with the terminal device of the staff, and the intelligent control device may first send an alarm to the terminal device of the staff as prompt information.

[0076] For another example, the intelligent control device may be communicatively connected with a prompt device disposed at a vacuum isothermal forging billet heating furnace, and the intelligent control device may output prompt information through the prompt device.

[0077] As an example, the prompt device may specifically be a speaker, and the intelligent control device may output a preset voice or alarm sound as the prompt information through the speaker.

[0078] As another example, the prompt device may be a warning light, and the intelligent control device may output a warning light as prompt information through the warning light.

[0079] In some possible embodiments, after the position of the blank is readjusted to a suitable position, the intelligent control device may also control the ejector pin to rise again to drive the blank into the blank heating chamber.

[0080] In a possible implementation, the intelligent control device can prompt the staff to adjust the position of the billet through a prompt message. For example, the vacuum isothermal forging billet heating furnace can also include a vacuum breaking valve, and the bottom plate of the billet placement chamber can also be provided with a locking device for locking the furnace door. Before the vacuum isothermal forging billet heating furnace is evacuated, the intelligent control device can control the locking device to lock the furnace door. After controlling the push rod to stop rising, the intelligent control device can output a prompt message, control the vacuum breaking valve to break the vacuum in the vacuum isothermal forging billet heating furnace, and then control the locking device to unlock the furnace door, so that the staff can manually adjust the position of the billet on the tray.

[0081] In another possible implementation, the intelligent control device can control the three-jaw chuck to automatically adjust the position of the blank. In this case, after the above S102, the method can also include the following steps: Step 1e: Control the push rod to descend until the tray is flush with the center hole of the tray.

[0082] For example, a grating ruler or a displacement sensor may be provided on the push rod, and the intelligent control device may record the position of the push rod when the tray is flush with the center through hole of the material tray through the grating ruler or the displacement sensor, and control the push rod to descend to the recorded position.

[0083] Step 2e, control the three-jaw chuck to clamp the blank according to the preset displacement speed until the clamping force of the three jaws of the three-jaw chuck on the blank is within the preset clamping force range, and the maximum deviation value of the displacement of the three jaws of the three-jaw chuck is less than the difference threshold.

[0084] In the intelligent control method of the vacuum isothermal forging billet heating furnace provided in the embodiment of the present application, the intelligent control device can also control the push rod to descend until the tray is flush with the center through hole of the tray; control the three-jaw chuck to clamp the billet according to the preset displacement speed until the clamping force of the three jaws of the three-jaw chuck on the billet is within the preset clamping force range, and the maximum deviation value of the displacement of the three jaws of the three-jaw chuck is less than the difference threshold. At this time, the clamping force of the three jaws is moderate and the displacement is relatively uniform. It can be considered that the billet is pushed back to the center position of the tray by the jaws, thereby realizing the control of the three-jaw chuck to automatically adjust the position of the billet.

[0085] The above mainly introduces the solution provided by the embodiment of the present application from the perspective of the method. In order to achieve the above functions, it includes hardware structures and / or software modules corresponding to the execution of each function. It should be easy to realize that the technical goals in this field are combined with the units and algorithm steps of each example described in the embodiments disclosed in this article, and the present application can be implemented in the form of hardware or a combination of hardware and computer software. Whether a function is executed in the form of hardware or computer software driving hardware depends on the specific application and design constraints of the technical solution. Professional and technical goals can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of this application.

[0086] In an exemplary embodiment, the present application also provides an intelligent control device for a vacuum isothermal forging billet heating furnace. Figure 4 This is a schematic diagram of the composition of the intelligent control device of the vacuum isothermal forging blank heating furnace provided in the embodiment of the present application. Figure 4 As shown, the intelligent control device includes: a detection module 401 and a processing module 402 .

[0087] The detection module 401 is used to detect whether the position of the blank placed on the tray is offset during the process of controlling the lift pin to rise; The processing module 402 is used to control the ejector pin to stop rising based on the position deviation of the blank placed on the tray.

[0088] In some possible embodiments, a plurality of pressure sensors are disposed around the top edge of the push rod; the detection module 401 is specifically configured to determine that the position of the blank placed on the tray is offset based on the pressure changes detected by the plurality of pressure sensors.

[0089] In some other possible embodiments, the detection module 401 is specifically configured to determine that the position of the blank placed on the tray is shifted when the pressure detected by the plurality of pressure sensors changes and the change value is greater than a pressure threshold.

[0090] In some other possible embodiments, a plurality of reflective photoelectric sensors are arranged around the lower opening of the blank heating chamber, each reflective photoelectric sensor is used to emit and receive light signals in a direction perpendicular to the bottom plate of the blank placement chamber; the bottom plate of the blank placement chamber is parallel to the tray; the detection module 401 is specifically used to determine that the position of the blank on the tray is offset based on the light signal of any reflective photoelectric sensor being blocked.

[0091] In some other possible embodiments, the processing module 402 is further configured to control the lift pin to rise based on the blank being placed on the tray and the light signals of the plurality of reflective photoelectric sensors being unblocked.

[0092] In some other possible embodiments, when the push rod is not raised, the tray is located in the central through hole of the material tray; a three-jaw chuck is installed on the edge of the material tray; the center of the three-jaw chuck, the center of the material tray, and the center of the lower end opening of the billet heating chamber are located on the same plumb line; the processing module 402 is also used to control the three jaws of the three-jaw chuck to open to the maximum opening and control the rise of the push rod based on the fact that the clamping force of the three jaws of the three-jaw chuck on the billet is within a preset clamping force range and the maximum deviation value of the displacement of the three jaws of the three-jaw chuck is less than the difference threshold.

[0093] In some other possible embodiments, the processing module 402 is also used to control the push rod to descend after it stops rising until the tray is flush with the center through hole of the tray; control the three-jaw chuck to clamp the blank according to a preset displacement speed until the clamping force of the three jaws of the three-jaw chuck on the blank is within a preset clamping force range, and the maximum deviation value of the displacement of the three jaws of the three-jaw chuck is less than the difference threshold.

[0094] In some other possible embodiments, the processing module 402 is further used to output a prompt message; the prompt message is used to indicate that the position of the blank placed on the tray is offset.

[0095] It should be noted that Figure 4 The division of modules in the example is schematic and is only a logical function division. There may be other division methods in actual implementation. For example, two or more functions may be integrated into one processing module. The above integrated modules may be implemented in the form of hardware or software function modules.

[0096] In an exemplary embodiment, the embodiment of the present application also provides an intelligent control device for a vacuum isothermal forging billet heating furnace in the form of a physical device. Figure 5 A schematic diagram of another intelligent control device for a vacuum isothermal forging blank heating furnace provided in an embodiment of the present application. Figure 5 As shown, the intelligent control device includes: a processor 40 , a memory 50 , a communication line 60 , a communication interface 70 , and an input / output interface 80 .

[0097] The processor 40 , the memory 50 , the communication interface 70 and the input / output interface 80 may be connected via a communication line 60 .

[0098] The processor 40 is used to execute the instructions stored in the memory 50 to implement the intelligent control method of the vacuum isothermal forging billet heating furnace provided in the above-mentioned embodiment of the present application. The processor 40 can be a CPU, a general-purpose processor network processor (network processor, NP), a digital signal processor (digital signal processing, DSP), a microprocessor, a microcontroller (micro control unit, MCU) / single-chip microcomputer / single-chip microcomputer, a programmable logic device (programmable logic device, PLD) or any combination thereof. The processor 40 can also be any other device with processing functions, such as a circuit, a device or a software module, which is not limited in the embodiments of the present application. In one example, the processor 40 may include one or more CPUs, such as Figure 4 As an optional implementation, the intelligent control device may include multiple processors, for example, in addition to the processor 40, it may also include a processor 90 ( Figure 4 ) is shown by the dotted line as an example.

[0099] The memory 50 is used to store instructions. For example, the instructions may be computer programs. Optionally, the memory 50 may be a read-only memory (ROM) or other types of static storage devices that can store static information and / or instructions, or a random access memory (RAM) or other types of dynamic storage devices that can store information and / or instructions, or an electrically erasable programmable read-only memory (EEPROM), a compact disc read-only memory (CD-ROM) or other optical disc storage, optical disc storage (including compressed optical disc, laser disc, optical disc, digital versatile disc, Blu-ray disc, etc.), a magnetic disk storage medium or other magnetic storage devices, etc., and the embodiments of the present application are not limited to this.

[0100] It should be noted that the memory 50 may exist independently of the processor 40, or may be integrated with the processor 40. The memory 50 may be located inside the intelligent control device, or may be located outside the intelligent control device, which is not limited in the embodiment of the present application.

[0101] The communication line 60 is used to transmit information between the components included in the intelligent control device.

[0102] The communication interface 70 is used to communicate with other devices or other communication networks. The other communication networks may be Ethernet, radio access network (RAN), wireless local area network (WLAN), etc. The communication interface 70 may be a module, a circuit, a transceiver or any device capable of achieving communication.

[0103] The input / output interface 80 is used to realize human-computer interaction between the user and the intelligent control device, for example, to realize action interaction or information interaction between the user and the intelligent control device.

[0104] Exemplarily, the input / output interface 80 may be a mouse, a keyboard, a display screen, or a touch display screen, etc. Action interaction or information interaction between a user and the intelligent control device may be achieved through a mouse, a keyboard, a display screen, or a touch display screen, etc.

[0105] It should be noted that Figure 5 The structure shown in the figure does not constitute a limitation on the intelligent control device. Figure 5 In addition to the components shown, the intelligent control device may include more or fewer components than shown, or a combination of certain components, or a different arrangement of components.

[0106] In an exemplary embodiment, the embodiment of the present application further provides a computer program product, which includes computer instructions. When the computer instructions are executed in an intelligent control device, the intelligent control device implements the method in the aforementioned method embodiment.

[0107] In an exemplary embodiment, the present application also provides a readable storage medium, which includes software instructions. When the software instructions are executed in the intelligent control device, the intelligent control device implements the method in the aforementioned method embodiment. The computer-readable storage medium can be a non-temporary computer-readable storage medium, for example, the non-temporary computer-readable storage medium can be a ROM, a random access memory (RAM), a CD-ROM, a magnetic tape, a floppy disk, an optical data storage device, etc.

[0108] In the above embodiments, it can be implemented in whole or in part by software, hardware, firmware or any combination thereof. When implemented using a software program, it can be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer-executable instructions. When the computer-executable instructions are loaded and executed on a computer, the process or function according to the embodiment of the present application is generated in whole or in part. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer-executable instructions can be stored in a computer-readable storage medium, or transmitted from one computer-readable storage medium to another computer-readable storage medium. For example, the computer-executable instructions can be transmitted from a website site, a computer, a server or a data center by wired (e.g., coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) mode to another website site, computer, server or data center.

[0109] Although the present application is described herein in conjunction with various embodiments, in the process of implementing the claimed application, those skilled in the art may understand and implement other changes to the disclosed embodiments by viewing the drawings, the disclosure, and the appended claims. In the claims, the word "comprising" does not exclude other components or steps, and "one" or "an" does not exclude multiple situations. A single processor or other unit may implement several functions listed in a claim. Certain measures are recorded in different dependent claims, but this does not mean that these measures cannot be combined to produce good results.

[0110] Although the present application has been described in conjunction with specific features and embodiments thereof, it is obvious that various modifications and combinations may be made thereto without departing from the spirit and scope of the present application. Accordingly, this specification and the drawings are merely exemplary illustrations of the present application as defined by the appended claims, and are deemed to have covered any and all modifications, variations, combinations or equivalents within the scope of the present application. Obviously, those skilled in the art may make various modifications and variations to the present application without departing from the spirit and scope of the present application. Thus, if these modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is also intended to include these modifications and variations.

[0111] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any changes or substitutions within the technical scope disclosed in the present application should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. An intelligent control method for a vacuum isothermal forging blank heating furnace, characterized in that: The method is applied to an intelligent control device of a vacuum isothermal forging billet heating furnace; the vacuum isothermal forging billet heating furnace further comprises a billet placement chamber and a billet heating chamber arranged above the billet placement chamber; the billet heating chamber is connected to the billet placement chamber through a lower end opening; A tray for placing the blanks is provided in the blank placement chamber, and a liftable ejector rod is installed at the bottom of the tray; the ejector rod is used to lift and drive the blanks placed in the tray to enter or leave the blank heating chamber through the lower end opening of the blank heating chamber; The blank heating chamber is used to heat the blank in a vacuum environment; The method comprises: In the process of controlling the lift rod to rise, detecting whether the position of the blank placed on the tray is offset; Based on the positional deviation of the blank placed on the tray, the ejector pin is controlled to stop rising.

2. The method according to claim 1, characterized in that: A plurality of pressure sensors are arranged around the top edge of the push rod; the detecting whether the position of the blank placed on the tray is offset comprises: Based on the change in pressure detected by the plurality of pressure sensors, it is determined that the position of the blank placed on the tray is shifted.

3. The method according to claim 2, characterized in that The step of determining that the position of the blank placed on the tray is shifted based on the change in pressure detected by the plurality of pressure sensors comprises: When the pressures detected by the multiple pressure sensors change and the change value is greater than a pressure threshold, it is determined that the position of the blank placed on the tray is shifted.

4. The method according to claim 1, characterized in that: A plurality of reflective photoelectric sensors are arranged around the lower opening of the blank heating chamber, each reflective photoelectric sensor is used to emit and receive light signals in a direction perpendicular to the bottom plate of the blank placement chamber; the bottom plate of the blank placement chamber is parallel to the tray; The detecting whether the position of the blank placed on the tray is offset comprises: Based on the light signal of any one of the reflective photoelectric sensors being blocked, it is determined that the position of the blank on the tray is shifted.

5. The method according to claim 4, characterized in that The method further comprises: Based on the fact that the blank is placed on the tray and the light signals of the multiple reflective photoelectric sensors are not blocked, the push rod is controlled to rise.

6. The method according to claim 1, characterized in that When the push rod is not raised, the tray is located in the central through hole of the material tray; a three-jaw chuck is installed on the edge of the material tray; the center of the three-jaw chuck, the center of the material tray, and the center of the lower end opening of the blank heating chamber are located on the same plumb line; The method further comprises: Based on the fact that the clamping forces of the three jaws of the three-jaw chuck on the blank are all within a preset clamping force range, and the maximum deviation value of the displacement of the three jaws of the three-jaw chuck is less than the difference threshold, the three jaws of the three-jaw chuck are controlled to open to the maximum opening, and the push rod is controlled to rise.

7. The method according to claim 6, characterized in that After controlling the push rod to stop rising, the method further includes: Control the push rod to descend until the tray is flush with the central through hole of the tray; The three-jaw chuck is controlled to clamp the blank according to a preset displacement speed until the clamping forces of the three jaws of the three-jaw chuck on the blank are all within the preset clamping force range, and the maximum deviation value of the displacement of the three jaws of the three-jaw chuck is less than the difference threshold.

8. The method according to claim 1, characterized in that: The method further comprises: Output prompt information; the prompt information is used to prompt that the position of the blank placed on the tray is offset.

9. An intelligent control device for a vacuum isothermal forging blank heating furnace, characterized in that: The vacuum isothermal forging billet heating furnace also includes a billet placement chamber and a billet heating chamber arranged above the billet placement chamber; a tray for placing billets is arranged in the billet placement chamber, and a liftable ejector rod is installed at the bottom of the tray; an opening is opened at the lower end of the billet heating chamber; the ejector rod is used to lift and drive the billet placed in the tray to enter or leave the billet heating chamber through the lower end opening of the billet heating chamber; the billet heating chamber is used to heat the billet in a vacuum environment; The intelligent control device comprises: a detection module and a processing module; The detection module is used to detect whether the position of the blank placed on the tray is offset during the process of controlling the lift rod to rise; The processing module is used to control the ejector pin to stop rising based on the position deviation of the blank placed on the tray.

10. An intelligent control device for a vacuum isothermal forging blank heating furnace, characterized in that: include: Processor and memory; The memory stores instructions executable by the processor; When the processor is configured to execute the instructions, the intelligent control device implements the method according to any one of claims 1 to 8.

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