An automatic control system for milling and drilling compound machine tools based on double ring buckle production

Abstract

The present invention relates to an automatic control system for a milling and drilling compound machine tool based on double-ring buckle production, comprising a frame body, a processing component, a central control unit, a cooling device and an image acquisition component, wherein the frame body is used to support the frame body and the machine tool components, the processing component is arranged on the frame body, and is used to perform a milling and drilling compound process, the processing component comprises a cutter head for milling and drilling and a pressure sensor arranged at the upper end of the cutter head and capable of detecting the pressure borne by the cutter head, the image acquisition component is used to perform image acquisition of a workpiece to be processed and the processing component located on the processing component, the central control unit is connected to the processing component and the image acquisition component respectively, and can determine the current rotation speed and feed speed of the cutter head according to the pressure detected by the pressure sensor, and re-determine the re-determined feed speed through the detection result of an infrared imaging device. The present invention is more intelligent for the adjustment of milling and drilling processing.

Description

Technical Field

[0001] The invention relates to the technical field of automatic control of a milling and drilling compound machine tool, and in particular to an automatic control system for a milling and drilling compound machine tool based on double-ring buckle production. Background Art

[0002] As the core equipment of modern manufacturing industry, the performance of CNC machine tool control system directly affects the processing accuracy and production efficiency of products. Existing CNC machine tool control systems usually use preset programs or operator's manual input to control the movement and processing of machine tools.

[0003] Chinese patent publication number CN108436466A discloses a drilling and milling compound machine tool, comprising a vertically arranged column, a slide and a ram; a lifting guide rail is arranged on the column along its length direction, one side of the slide is movably connected to the lifting guide rail through a lifting slider, and the other side is rotatably connected to the back of the ram through a rotating shaft; a feed guide rail and a tool holder guide rail assembly are arranged on the front side of the ram along its length direction, a spindle box is slidably arranged on the feed guide rail, a tool holder that can slide along it is provided on the tool holder guide rail assembly, and the tool holder guide rail assembly includes a flipping mechanism for flipping the tool holder to one side of the ram, and the flipping mechanism is hinged to one side in the length direction of the ram; one end of the ram is connected to the guide box through a yielding mechanism, and the guide box can approach or move away from the spindle axis of the spindle box under the drive of the yielding mechanism to switch the milling or drilling state of the machine tool, and the guide box and the tool holder can be used to ensure the accuracy of deep hole processing.

[0004] It can be seen that the drilling and milling machine tool has the following problems: the existing CNC machine tool control system has a low degree of automation in fault diagnosis and maintenance. During the long-term operation of the machine tool, various faults will occur due to wear, such as tool failure, bearing overheating, system error, etc. These faults often need to be discovered and repaired through regular inspection and maintenance, which is time-consuming and labor-intensive, and may cause serious equipment damage and production stagnation due to missed detection or misjudgment. Summary of the invention

[0005] To this end, the present invention provides an automatic control system for a milling and drilling compound machine tool based on double-ring production, which is used to overcome the low degree of automation in fault diagnosis and maintenance of CNC machine tool control systems in the prior art. During long-term operation, the machine tool will have various faults due to wear, such as tool failure, bearing overheating, system error, etc. These faults often need to be discovered and repaired through regular inspection and maintenance, which is time-consuming and labor-intensive, and may cause serious equipment damage and production stagnation due to missed detection or misjudgment.

[0006] To achieve the above object, the present invention provides an automatic control system for a milling and drilling compound machine tool based on double ring buckle production, comprising:

[0007] The main body of the frame is used to support the remaining machine tool components;

[0008] A processing assembly, which is arranged on the frame body and is used for performing a milling and drilling composite process, wherein the processing assembly comprises a cutter head for milling and drilling and a pressure sensor arranged at the upper end of the cutter head and capable of detecting the pressure borne by the cutter head;

[0009] A cooling device, which is used to cool the processing assembly when the processing assembly is processing the workpiece;

[0010] An image acquisition component, used for acquiring images of the workpiece to be processed and the processing component located on the processing component, wherein the image acquisition component comprises an infrared imaging device capable of performing infrared thermal imaging of the tool head;

[0011] The central control unit is connected to the processing component and the image acquisition component respectively. It can determine the current rotation speed and feed speed of the tool head according to the pressure detected by the pressure sensor, and re-determine the re-determined feed speed through the detection result of the infrared imaging device, wherein the adjustment limit range of the rotation speed of the tool head is related to the cooling capacity of the cooling device.

[0012] Wherein, the frame body includes:

[0013] A slide seat, which is used to drive the workbench to move horizontally and is arranged at the bottom of the frame body;

[0014] A crossbeam, which is used to fix the tool spindle on the frame body and is arranged at the upper end of the frame body;

[0015] The processing assembly further includes:

[0016] A workbench, which is mounted on the upper end of the slide and is used to carry and fix the workpiece to be processed;

[0017] A tool spindle, which is vertically mounted in the middle of the beam and is used to drive the tool head to move vertically;

[0018] A tool magazine, which is installed on the side end of the tool spindle and is used to store milling and drilling tool heads;

[0019] Central control unit, including:

[0020] Data processor, used to monitor the working status and operation of the equipment in real time and obtain corresponding data for analysis and calculation;

[0021] Servo controller and drive unit for adjusting feed speed, drill speed and coolant flow rate.

[0022] Furthermore, the pressure sensor detects the pressure value of the drill in real time and transmits the detection result to the data processor, and the data processor calculates and determines the theoretical rotation speed of the drill based on the comparison result of the difference between the pressure value and the preset pressure value and the preset pressure difference.

[0023] Furthermore, the data processor compares the theoretical drill speed with the maximum drill speed.

[0024] If the theoretical drill speed is less than or equal to the maximum drill speed, the data processor determines that the maximum drill speed meets the drill acceleration requirement, and the central control unit controls the drive device to perform processing according to the theoretical drill speed;

[0025] If the theoretical drill speed is greater than the maximum drill speed, the data processor determines that the maximum drill speed does not meet the current drill acceleration requirement, and the central control unit controls the drive device to perform processing according to the maximum drill speed and reduces the current drill feed speed.

[0026] Furthermore, the image acquisition component detects the drill temperature in real time and transmits the detection result to the data processor. The data processor analyzes and calculates the theoretical maximum speed of the drill according to the drill temperature and coolant flow rate corresponding to the initial speed and the initial feed speed, and compares it with the actual maximum speed of the drill to determine the maximum speed of the drill.

[0027] Furthermore, the infrared imaging device in the image acquisition component detects the temperature of the drill bit in real time and transmits the detection result to the data processor, which compares the temperature of the drill bit with the preset temperature and controls the driving device to adjust the flow rate of the coolant.

[0028] If the drill temperature is greater than the preset temperature, the data processor determines that the drill temperature t0 is too high and controls the driving device to increase the flow rate of the coolant.

[0029] Furthermore, if the drill temperature is still greater than the preset temperature when the adjusted coolant flow rate reaches the maximum value, the data processor determines that the feed speed is too high and controls the drive device to reduce the feed speed.

[0030] Furthermore, the sensor measures the change in the position of the workpiece relative to the machine tool to determine the exact position of the workpiece and accurately measures the position of the workpiece. The sensor sends the collected information to the data processor, which analyzes and calculates to determine the next operation of the machine tool and updates the data in real time during the processing. When the processing position of the workpiece shifts, a warning signal is issued.

[0031] Furthermore, the central control unit continuously collects and analyzes real-time data and image information, performs real-time fault diagnosis, and sends a stop command to the drive device through the servo control unit when an abnormal situation is found.

[0032] Compared with the prior art, the beneficial effect of the present invention lies in that the central control unit calculates the theoretical drill speed value by detecting the pressure borne by the drill, and adjusts the current drill speed according to the theoretical drill speed, thereby reducing the pressure value borne by the drill, avoiding damage to the drill due to excessive pressure on the drill, increasing the working efficiency of the compound machine tool, and ensuring the processing stability during the processing.

[0033] Furthermore, when the drill speed does not meet the current processing requirements, the central control unit reduces the acceleration requirement of the theoretical speed by lowering the feed speed in the current processing process, so that the maximum drill speed can cover the theoretical drill speed, avoiding unnecessary wear of the tool during the processing process, and achieving a balance between the processing speed and the equipment operating life, thereby increasing the practicality of the system.

[0034] Furthermore, the data processor calculates the increased theoretical drill speed according to the difference between the pressure value and the preset pressure value, and uses the PID algorithm to negatively feedback adjust the drill feed speed according to the theoretical drill speed, so that the drill can run at a uniform and stable feed speed.

[0035] Furthermore, the central control unit quantifies the cooling capacity of the cooling device by calculating the coolant flow rate and the theoretical maximum speed of the drill when the drill temperature reaches the maximum value, and compares the theoretical maximum speed of the drill with the actual maximum speed of the drill, and selects the minimum value as the maximum speed of the drill during the actual processing process, thereby achieving precise control of the maximum speed of the drill during the processing process and improving the accuracy of workpiece processing.

[0036] Furthermore, if the temperature of the drill bit is too high during the processing, the accuracy of the processing will be reduced. The central control unit detects the temperature of the drill bit in real time through an infrared imaging device, and determines that the temperature of the cutter head is too high when the temperature of the drill bit exceeds the preset temperature range. The cooling and cooling capacity is increased by increasing the flow rate of the coolant, thereby reducing the temperature of the drill head, avoiding unnecessary wear of the drill bit at excessively high temperatures, and increasing the accuracy of the processing. At the same time, the central control unit appropriately reduces the flow rate of the coolant when the temperature of the drill bit does not exceed the preset temperature range, reduces the degree of cooling and cooling, and thus avoids unnecessary waste and loss of coolant.

[0037] Furthermore, the central control unit measures the current drill temperature when the coolant flow rate reaches the maximum value, and by comparing it with the preset temperature, determines whether the cooling capacity of the cooling device can meet the cooling demand in the current processing process, and adjusts the feed speed according to the negative feedback of the drill temperature. The PID algorithm is used to jointly adjust the drill temperature through the feed speed and the coolant flow rate, so that the drill can operate stably within the preset temperature range of the equipment, avoiding unnecessary wear of the tool and reduction of processing accuracy due to excessive temperature of the drill during processing, thereby increasing the practicality of the system.

[0038] Furthermore, by collecting, analyzing and processing data in real time, the central control unit can promptly detect machine tool failures and abnormal conditions and take corresponding measures, which helps to improve the reliability, safety and production efficiency of machine tools and protect the safety of equipment and operators.

[0039] Furthermore, by integrating multiple modules, the processing process becomes more accurate, efficient and automated. The system can collect and analyze the operating status and processing parameters of the machine tool in real time, so that the system can promptly discover and handle problems, ensure the normal progress of the processing process, and quickly make real-time adjustments based on the collected data and analysis, thereby reducing ineffective processing time and improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] Figure 1 It is a schematic diagram of the structure of the automatic control system of the milling and drilling compound machine tool according to an embodiment of the present invention;

[0041] Figure 2 This is a negative feedback adjustment diagram for adjusting the feed speed according to the pressure on the drill and the drill speed according to an embodiment of the present invention;

[0042] Figure 3 A negative feedback adjustment diagram for adjusting the feed speed according to the drill bit temperature and the coolant flow rate in an embodiment of the present invention;

[0043] Figure 4 It is an operation flow chart of the automatic control system of the milling and drilling compound machine tool in the embodiment of the present invention.

[0044] In the figure: a frame 1, a slide 2, a workbench 3, a crossbeam 4, an infrared imaging device 5, a cooling device 6, a pressure sensor 7, a tool spindle 8, a tool magazine 9, and a drill 10. DETAILED DESCRIPTION

[0045] In order to make the objects and advantages of the present invention more clearly understood, the present invention is further described below in conjunction with embodiments; it should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0046] The preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only used to explain the technical principles of the present invention and are not intended to limit the protection scope of the present invention.

[0047] It should be noted that, in the description of the present invention, terms such as "up", "down", "left", "right", "inside" and "outside" indicating directions or positional relationships are based on the directions or positional relationships shown in the drawings. This is merely for the convenience of description and does not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation on the present invention.

[0048] In addition, it should be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0049] See also Figure 1 and Figure 4 , Figure 1 Schematic diagram of the structure of the automatic control system of the milling and drilling compound machine tool according to the embodiment of the present invention, Figure 4 The present invention provides an automatic control system for a milling and drilling compound machine tool based on double-ring buckle production, comprising:

[0050] The main body of the frame is used to support the remaining machine tool components;

[0051] A processing assembly, which is arranged on the frame body and is used for performing a milling and drilling composite process, wherein the processing assembly comprises a cutter head for milling and drilling and a pressure sensor arranged at the upper end of the cutter head and capable of detecting the pressure borne by the cutter head;

[0052] A cooling device, which is used to cool the processing assembly when the processing assembly is processing the workpiece;

[0053] An image acquisition component, used for acquiring images of the workpiece to be processed and the processing component located on the processing component, wherein the image acquisition component comprises an infrared imaging device capable of performing infrared thermal imaging of the tool head;

[0054] The central control unit is connected to the processing component and the image acquisition component respectively. It can determine the current rotation speed and feed speed of the tool head according to the pressure detected by the pressure sensor, and re-determine the re-determined feed speed through the detection result of the infrared imaging device, wherein the adjustment limit range of the rotation speed of the tool head is related to the cooling capacity of the cooling device.

[0055] Wherein, the frame body includes:

[0056] A slide seat, which is used to drive the workbench to move horizontally and is arranged at the bottom of the frame body;

[0057] A crossbeam, which is used to fix the tool spindle on the frame body and is arranged at the upper end of the frame body;

[0058] The processing assembly further includes:

[0059] A workbench, which is mounted on the upper end of the slide and is used to carry and fix the workpiece to be processed;

[0060] A tool spindle, which is vertically mounted in the middle of the beam and is used to drive the tool head to move vertically;

[0061] A tool magazine, which is installed on the side end of the tool spindle and is used to store milling and drilling tool heads;

[0062] Central control unit, including:

[0063] Data processor, used to monitor the working status and operation of the equipment in real time and obtain corresponding data for analysis and calculation;

[0064] Servo controller and drive unit for adjusting feed speed, drill speed and coolant flow rate.

[0065] In this embodiment, the pressure value of the drill bit is F1, the preset pressure value is Fe, and the preset pressure difference value is F2, wherein the preset pressure value Fe is an equipment parameter and can be adjusted according to the material of the drill bit;

[0066] The driving device controls the drill to process the workpiece at an initial rotation speed V0 and an initial feed speed H0. After the drill contacts the workpiece to be processed, the pressure sensor detects the pressure value F1 borne by the drill in real time and transmits the detection result to the data processor. The data processor compares the detected pressure value F1 with the preset pressure value Fe, calculates the difference between the detected pressure value F1 and the preset pressure value Fe, and assumes that the difference between the pressure value and the preset pressure value Fe is △F1, △F1=F1-Fe,

[0067] If △F1>F2, the central control unit determines that the pressure value of the drill is too large, and controls the driving device to adjust the current drill speed V0, and sets the adjusted theoretical drill speed to V1, V1=V0+△F1÷F2×V0×a1, where a1 is a calculation compensation parameter for increasing the current drill speed when the pressure value of the drill is too large;

[0068] Specifically, if the pressure value borne by the drill is not compared with the preset pressure value, when the pressure value borne by the drill is too large, the cutter head is easily broken and damaged, resulting in waste resources and loss of tools. The central control unit calculates the theoretical drill speed value by detecting the pressure borne by the drill, and adjusts the current drill speed according to the theoretical drill speed, thereby reducing the pressure value borne by the drill, avoiding damage to the drill due to excessive pressure on the drill, increasing the working efficiency of the composite machine tool, and ensuring the processing stability during the processing.

[0069] Furthermore, the data processor calculates the increased theoretical drill speed V1 according to the difference △F1 between the detected pressure value and the preset pressure value, and compares the theoretical drill speed V1 with the maximum drill speed Ve.

[0070] If V1≤Ve, the data processor determines that the maximum drill speed Ve meets the current drill acceleration requirement, and the central control unit controls the drive device to perform processing according to the theoretical drill speed V1;

[0071] If V1>Ve, the data processor determines that the maximum drill speed Ve does not meet the current drill acceleration requirement, and the central control unit controls the drive device to perform processing according to the maximum drill speed Ve, and reduces the current drill feed speed H0, and sets the reduced drill feed speed to H1, H1=H0-(V1-Ve)÷Ve×H0×b1, wherein b1 is a calculation compensation parameter for reducing the current drill feed speed H0 when the maximum drill speed Ve does not meet the current drill acceleration requirement;

[0072] Specifically, if the central control unit does not compare the calculated theoretical drill speed with the maximum drill speed, when the theoretical drill speed is greater than the maximum drill speed, the drill speed cannot meet the processing requirements of the workpiece processing process under the current feed speed. Insufficient drill speed can easily cause the cutter head to break and damage, aggravate tool consumption, affect the workpiece processing process, result in insufficient workpiece yield, and reduce the processing efficiency when processing workpieces. When the drill speed does not meet the current processing requirements, the central control unit reduces the feed speed in the current processing process to reduce the acceleration requirement of the theoretical speed, so that the maximum drill speed can cover the theoretical drill speed, avoid unnecessary wear of the tool during processing, and achieve a balance between the processing speed and the equipment operating life, thereby increasing the practicality of the system.

[0073] Furthermore, the central control unit detects the drill temperature t0 and the coolant flow rate c0 in real time and transmits the detection results to the data processor. The data processor analyzes and calculates the theoretical maximum speed of the drill when the coolant flow rate c0 reaches the maximum value ce and the drill temperature t0 reaches the maximum value te according to the drill temperature t0 and the coolant flow rate c0 corresponding to the initial speed V0 and the initial feed speed H0, and compares it with the actual maximum speed Vmax of the drill.

[0074] Assume that the theoretical maximum speed of the drill is Vep, Vep=te×ce÷t0÷c0×V0×k1, where k1 is the calculation compensation parameter of the theoretical maximum speed of the drill.

[0075] If Vep≥Vmax, the data processor determines that the cooling capacity of the coolant covers the actual maximum rotation speed of the drill, Ve=Vmax;

[0076] If Vep<Vmax, the data processor determines that the cooling capacity of the coolant does not cover the actual maximum rotation speed of the drill, Ve=Vep;

[0077] Specifically, if Figure 2 The data processor shown calculates the increased theoretical drill speed based on the difference between the pressure value and the preset pressure value, and uses the PID algorithm to negatively feedback to adjust the drill feed speed based on the theoretical drill speed, so that the drill can run at a uniform and stable feed speed.

[0078] If the theoretical maximum speed of the drill when the coolant flow rate and the drill temperature reach their maximum values ​​is not calculated, the central control unit cannot accurately determine whether the maximum speed of the drill meets the current acceleration requirement of the drill when comparing the calculated theoretical speed of the drill with the maximum speed of the drill when the drill is under too much pressure, thereby affecting the subsequent adjustment process of the drill feed speed. The central control unit quantifies the cooling capacity of the cooling device by calculating the theoretical maximum speed of the drill when the coolant flow rate and the drill temperature reach their maximum values, and compares the theoretical maximum speed of the drill with the actual maximum speed of the drill, and selects the minimum value as the maximum speed of the drill during the actual processing process, thereby achieving precise control of the maximum speed of the drill during the processing process and improving the accuracy of workpiece processing.

[0079] Furthermore, the infrared imaging device in the image acquisition component detects the drill temperature t0 in real time and transmits the detection result to the data processor, which compares the drill temperature t0 with the preset temperature te and controls the driving device to adjust the coolant flow rate c0.

[0080] If t0>te, the data processor determines that the drill temperature t0 is too high, and controls the drive device to increase the coolant flow rate c0. The adjusted coolant flow rate c1=t0÷te×c0÷d1, wherein d1 is a calculated compensation parameter for increasing the coolant flow rate c0 when the drill temperature t0 is too high.

[0081] Specifically, if the drill temperature is too high during the processing, the processing accuracy will be reduced. The central control unit detects the drill temperature in real time through an infrared imaging device, and judges that the cutter head temperature is too high when the drill temperature exceeds the preset temperature range. By increasing the flow rate of the coolant to increase the refrigeration and cooling capacity, the drill head temperature is reduced, avoiding unnecessary wear of the drill at excessively high temperatures and increasing the accuracy of the processing process.

[0082] Furthermore, when the coolant flow rate c1 reaches the maximum value, the image acquisition component generates an infrared temperature detection image based on the adjusted drill temperature detected by the infrared thermal imager, and transmits the drill temperature displayed in real time in the infrared temperature detection image to the data processor, and the data processor compares the drill temperature t0 with the preset temperature te.

[0083] If t0>te, the data processor determines that the drill temperature t0 is too high, and controls the drive device to reduce the drill feed speed H0. The adjusted drill feed speed H1=te÷t0×H0×b1, wherein b1 is the calculated compensation parameter for reducing the current drill feed speed H0 when the drill temperature t0 is too high.

[0084] Specifically, if the adjusted drill bit temperature is not detected, when the coolant flow rate of the current cooling device reaches the maximum value, if the drill bit temperature is greater than the preset temperature, the drill bit will be in an over-temperature state for a long time, which reduces the processing accuracy in the current processing process and aggravates the wear of the drill bit at high temperature.

[0085] like Figure 3 The central control unit shown measures the current drill temperature when the coolant flow rate reaches the maximum value, and determines whether the cooling capacity of the cooling device can meet the cooling demand in the current processing process by comparing it with the preset temperature, and adjusts the feed speed according to the negative feedback of the drill temperature. The PID algorithm is used to jointly adjust the drill temperature through the feed speed and the coolant flow rate, so that the drill can operate stably within the preset temperature range of the equipment, avoiding unnecessary wear of the tool and reduction of processing accuracy caused by excessive temperature during processing, thereby increasing the practicality of the system.

[0086] Specifically, the sensor measures the change in the position of the workpiece relative to the machine tool to determine the exact position of the workpiece and accurately measures the position of the workpiece. The sensor sends the collected information to the data processor, which analyzes and calculates to determine the next operation of the machine tool and updates the data in real time during the processing. When the processing position of the workpiece shifts, a warning signal is issued.

[0087] Specifically, the central control unit continuously collects and analyzes real-time data and image information, performs real-time fault diagnosis, and sends a stop command to the drive device through the servo control unit when an abnormal situation is found.

[0088] By collecting, analyzing and processing data in real time, the central control unit can promptly detect machine tool failures and abnormal conditions and take corresponding measures, which helps to improve the reliability, safety and production efficiency of machine tools and protect the safety of equipment and operators.

[0089] So far, the technical solutions of the present invention have been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present invention.

[0090] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An automatic control system for a milling and drilling compound machine tool based on double ring buckle production, characterized in that: include: The main body of the frame is used to support the remaining machine tool components; A processing assembly, which is arranged on the frame body and is used for performing a milling and drilling composite process, wherein the processing assembly comprises a cutter head for milling and drilling and a pressure sensor arranged at the upper end of the cutter head and capable of detecting the pressure borne by the cutter head; A cooling device, which is used to cool the processing assembly when the processing assembly is processing the workpiece; An image acquisition component, used for acquiring images of the workpiece to be processed and the processing component located on the processing component, wherein the image acquisition component comprises an infrared imaging device capable of performing infrared thermal imaging of the tool head; A central control unit, which is connected to the processing component and the image acquisition component respectively, and can determine the current rotation speed and feed speed of the cutter head according to the pressure detected by the pressure sensor, and re-determine the re-determined feed speed through the detection result of the infrared imaging device, wherein the adjustment limit range of the rotation speed of the cutter head is related to the cooling capacity of the cooling device; Central control unit, including: Data processor, used to monitor the working status and operation of the equipment in real time and obtain corresponding data for analysis and calculation; Servo controller and drive device for adjusting feed speed, drill speed and coolant flow rate; If the difference between the pressure value and the preset pressure value is greater than the preset pressure difference, the central control unit determines that the pressure value borne by the drill is too large, and the data processor determines the theoretical drill speed according to the difference between the pressure value and the preset pressure value and the preset pressure difference; The data processor compares the theoretical drill speed with the maximum drill speed to determine whether the maximum drill speed meets the theoretical drill speed acceleration requirement; If the theoretical drill speed is less than or equal to the maximum drill speed, the data processor determines that the maximum drill speed meets the drill acceleration requirement, and the central control unit controls the drive device to perform processing according to the theoretical drill speed; If the theoretical drill speed is greater than the maximum drill speed, the data processor determines that the maximum drill speed does not meet the current drill acceleration requirement, and the central control unit controls the drive device to perform processing according to the maximum drill speed and reduces the current drill feed speed; The image acquisition component detects the drill temperature in real time and transmits the detection result to the data processor. The data processor analyzes and calculates the theoretical maximum speed of the drill according to the drill temperature and coolant flow rate corresponding to the initial speed and initial feed speed, and compares it with the actual maximum speed of the drill to determine the maximum speed of the drill.

2. The automatic control system for a milling and drilling compound machine tool based on double-ring production according to claim 1 is characterized in that: The processing assembly further includes: A workbench, which is installed on the upper end of the slide and is used to carry and fix the workpiece to be processed; The tool spindle is vertically mounted in the middle of the beam and is used to drive the tool head to move vertically; A tool magazine, which is installed on the side end of the tool spindle and is used to store milling and drilling tool heads; The frame body comprises: A slide seat, which is used to drive the workbench to move horizontally and is arranged at the bottom of the frame body; The crossbeam is used to fix the tool spindle on the frame body and is arranged at the upper end of the frame body.

3. The automatic control system for a milling and drilling compound machine tool based on double-ring production according to claim 1 is characterized in that: The pressure sensor detects the pressure value of the drill bit in real time and transmits the detection result to the data processor. The data processor determines whether the pressure value of the drill bit is too large based on the difference between the pressure value and the preset pressure value and the comparison result of the preset pressure difference.

4. The automatic control system for a milling and drilling compound machine tool based on double-ring production according to claim 1 is characterized in that: The infrared imaging device in the image acquisition component detects the drill temperature in real time and transmits the detection result to the data processor, which compares the drill temperature with the preset temperature and controls the driving device to adjust the coolant flow rate. If the drill temperature is greater than the preset temperature, the data processor determines that the drill temperature t0 is too high and controls the driving device to increase the flow rate of the coolant.

5. The automatic control system for a milling and drilling compound machine tool based on double-ring production according to claim 1 is characterized in that: If the drill temperature is still greater than the preset temperature when the adjusted coolant flow rate reaches the maximum value, the data processor determines that the feed speed is too high and controls the drive device to reduce the feed speed.

6. The automatic control system for a milling and drilling compound machine tool based on double-ring production according to claim 1 is characterized in that: The sensor measures the change in the position of the workpiece relative to the machine tool to determine the exact position of the workpiece and accurately measures the position of the workpiece. The sensor sends the collected information to the data processor, which analyzes and calculates to determine the next operation of the machine tool and updates the data in real time during the processing. When the processing position of the workpiece shifts, a warning signal is issued.

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