Machine tool for machining high-hardness steel part and machining method

Abstract

The invention discloses a machine tool for machining a high-hardness steel part and a machining method. The machine tool comprises a machine tool base, a damping supporting device, a main shaft cutting device, a cutting driving device and a cutting cooling device. The damping supporting device comprises a damping base, a supporting fixing base, a hydraulic supporting mechanism, a pressure detection mechanism and a vibration detection mechanism. According to the machining method, when the vibration frequency is larger than the maximum vibration preset value, the vibration detection mechanism triggers the hydraulic supporting mechanism to stretch out upwards, and therefore the height and rigidity of the hydraulic supporting mechanism are improved; when the vibration frequency is smaller than the minimum vibration preset value, the vibration detection mechanism triggers the hydraulic supporting mechanism to contract downwards, so that energy is saved on the premise that the stability of the hydraulic supporting mechanism is not affected; by accurately detecting and adjusting the supporting strength of the workpiece, the influence of vibration on the machining process can be effectively reduced, the machining stability and precision are improved, workpiece deformation is reduced, the service life of a tool is prolonged, and the machining quality and efficiency are integrally improved.

Description

Technical Field

[0001] This application relates to the technical field of machining machine tools, and in particular to a machine tool and a machining method for machining high-hardness steel parts. Background Art

[0002] During the process of machining high-hardness steel parts, due to the high rigidity of the material and the high-speed rotation of the cutting tool, the machine tool is prone to vibration. These vibrations not only accelerate the wear of the cutting tool, but also cause excessive heat generation, resulting in workpiece deformation and further exacerbating the tool wear; the increase in vibration and heat also reduces the cutting stability, increases the machining error, thereby affecting the machining accuracy and leading to a decline in the overall machining quality and efficiency. Summary of the Invention

[0003] In order to improve the defects that the existing machine tool is prone to vibration when machining high-hardness steel parts, thereby reducing the machining quality and efficiency, this application provides a machine tool and a machining method for machining high-hardness steel parts.

[0004] The machine tool and the machining method for machining high-hardness steel parts provided by this application adopt the following technical solutions: A machine tool for machining high-hardness steel parts includes a machine tool base, a damping support device disposed on the machine tool base and used for supporting the workpiece, a spindle cutting device disposed on the machine tool base and above the damping support device, a cutting drive device for driving the relative movement between the spindle cutting device and the damping support device, and a cutting cooling device connected to the spindle cutting device and used for cooling the spindle cutting device; the cutting drive device is respectively used for connecting the spindle cutting device and the machine tool base, and connecting the damping support device and the machine tool base; The damping support device includes a shock-absorbing base connected to the cutting drive device, a support fixing seat located above the shock-absorbing base and used for fixedly supporting the workpiece, a hydraulic support mechanism disposed between the shock-absorbing base and the support fixing seat and used for supporting the support fixing seat, a pressure detection mechanism disposed between the hydraulic support mechanism and the shock-absorbing base and electrically connected to the hydraulic support mechanism, and a vibration detection mechanism disposed between the support fixing seat and the hydraulic support mechanism and electrically connected to the hydraulic support mechanism; The vibration detection mechanism is used to detect the vibration frequency of the workpiece during machining on the support fixing seat. When the vibration frequency of the workpiece during machining on the support fixing seat is greater than the maximum vibration preset value, the vibration detection mechanism triggers the hydraulic support mechanism to extend upward; when the vibration frequency of the workpiece during machining on the support fixing seat is less than the minimum vibration preset value, the vibration detection mechanism triggers the hydraulic support mechanism to contract downward.

[0005] By adopting the above technical solutions, the hydraulic support mechanism is used to adjust the height of the support fixing seat, the shock-absorbing base is used to absorb the vibration during workpiece processing, and the cutting cooling device is used to cool the spindle cutting device during cutting; the pressure detection mechanism triggers the expansion and contraction of the hydraulic support mechanism by detecting the weight of the workpiece on the support fixing seat, so as to adjust the supporting force of the support fixing seat for workpieces of different weights; the vibration detection mechanism is responsible for detecting the vibration frequency of the workpiece during processing on the support fixing seat. When the vibration frequency is greater than the maximum vibration preset value, the vibration detection mechanism triggers the hydraulic support mechanism to extend upward, thereby increasing the height and rigidity of the hydraulic support mechanism, absorbing vibration and increasing the supporting force; when the vibration frequency is less than the minimum vibration preset value, the vibration detection mechanism triggers the hydraulic support mechanism to contract downward, reducing the rigidity of the hydraulic support mechanism, enabling the hydraulic support mechanism to save energy without affecting stability, and preventing the support system from being too rigid; through precise detection and adjustment of the supporting strength of the workpiece, this application can effectively reduce the impact of vibration on the processing process, improve the stability and accuracy of processing, reduce workpiece deformation, extend the tool life, and overall improve the processing quality and efficiency.

[0006] Preferably, the hydraulic support mechanism includes a first hydraulic support column, a second hydraulic support column, a third hydraulic support column, and a fourth hydraulic support column that are sequentially located at the included angle positions of the support fixing seat; The pressure detection mechanism includes a first pressure detection component connected to the lower end of the first hydraulic support column, a second pressure detection component connected to the lower end of the second hydraulic support column, a third pressure detection component connected to the lower end of the third hydraulic support column, and a fourth pressure detection component connected to the lower end of the fourth hydraulic support column; The vibration detection mechanism includes a first vibration detection component connected to the upper end of the first hydraulic support column, a second vibration detection component connected to the upper end of the second hydraulic support column, a third vibration detection component connected to the upper end of the third hydraulic support column, and a fourth vibration detection component connected to the upper end of the fourth hydraulic support column.

[0007] By adopting the above technical solutions, the hydraulic support mechanism is used to support and stabilize the workpiece; the pressure detection mechanism is used to monitor the pressure of each hydraulic support mechanism in real time to ensure the balance and stability of the support; the vibration detection mechanism is used to detect the vibration of the workpiece during processing; The first hydraulic support column is respectively and correspondingly connected to the first pressure detection component and the first vibration detection component, the second hydraulic support column is respectively and correspondingly connected to the second pressure detection component and the second vibration detection component, the third hydraulic support column is respectively and correspondingly connected to the third pressure detection component and the third vibration detection component, and the fourth hydraulic support column is respectively and correspondingly connected to the fourth pressure detection component and the fourth vibration detection component, so as to form 4 support adjustment areas. Through multi-point support and detection, the present application can perform local adjustment according to the force and vibration conditions of different areas, avoid excessive or insufficient rigidity, and ensure that the system response is more flexible and accurate.

[0008] Preferably, the shock-absorbing base includes a steel plate support layer connected to the cutting drive device, a shock-absorbing rubber layer located on the upper side of the steel plate support layer and tightly connected to the steel plate support layer, and a carbon fiber composite layer located on the upper side of the shock-absorbing rubber layer and tightly connected to the shock-absorbing rubber layer; the pressure detection mechanism is fixedly connected to the carbon fiber composite layer.

[0009] By adopting the above technical solution, the shock-absorbing base is composed of multiple layers. The steel plate support layer at the bottom of the shock-absorbing base is connected to the cutting drive device and is used to stably support the entire damping support device; the shock-absorbing rubber layer is tightly attached to the upper side of the steel plate support layer, and the shock-absorbing rubber layer provides an elastic buffering function and can effectively absorb and reduce the vibration generated during the processing; the carbon fiber composite layer is tightly attached to the upper side of the shock-absorbing rubber layer. The high strength and light weight of the carbon fiber composite layer further enhance the overall rigidity and shock-absorbing ability of the shock-absorbing base. At the same time, the carbon fiber composite layer is fixedly connected to the pressure detection mechanism and is used to detect the pressure change from the hydraulic support mechanism; when the workpiece is processed, the steel plate support layer provides basic support, the shock-absorbing rubber layer absorbs the vibration during processing, and the carbon fiber composite layer enhances the structural strength and transmits the pressure detection signal; the close combination of each layer ensures that the shock-absorbing base has high-efficiency vibration buffering and pressure-bearing capabilities, thereby effectively reducing the impact of vibration on the workpiece and the tool during the processing, improving the processing stability, accuracy and efficiency, and prolonging the service life of the machine tool and the tool.

[0010] Preferably, the cutting drive device includes an X-axis drive mechanism connected to the machine tool base and arranged horizontally in the transverse direction, a Z-axis drive mechanism connected to the mobile end of the X-axis drive mechanism and arranged vertically, and a Y-axis drive mechanism arranged horizontally in the longitudinal direction between the machine tool base and the shock-absorbing base, and the shock-absorbing base is connected to the mobile end of the Y-axis drive mechanism; the spindle cutting device is connected to the Z-axis drive mechanism.

[0011] By adopting the above technical solution, during the cutting process, the X-axis drive mechanism adjusts the lateral movement of the spindle cutting device, the Z-axis drive mechanism adjusts the up-and-down position of the spindle cutting device, and the Y-axis drive mechanism pushes the shock-absorbing base and the workpiece to move longitudinally. Precise three-dimensional cutting operations are achieved through the three-axis linkage. This application can flexibly adjust the relative position between the workpiece and the cutting tool, ensure the machining accuracy, reduce errors, improve the machining efficiency at the same time, and ensure high cutting stability and flexibility when machining high-hardness steel parts.

[0012] Preferably, both the X-axis drive mechanism and the Y-axis drive mechanism include a drive support frame, a guide rod assembly fixedly connected to the drive support frame, a drive assembly fixedly connected to the drive support frame, a threaded screw rod assembly fixedly connected to the output end of the drive assembly and rotatably connected to the drive support frame, and a sliding seat sleeved on the outer side walls of the threaded screw rod assembly and the guide rod assembly respectively and threadedly engaged with the threaded screw rod assembly. The drive assembly is used to drive the threaded screw rod assembly to rotate so that the threaded screw rod assembly drives the sliding seat to move along the length direction of the guide rod assembly.

[0013] By adopting the above technical solution, when the drive assembly drives the threaded screw rod assembly to rotate, the threaded screw rod assembly drives the sliding seat to move along the length direction of the guide rod assembly, thereby realizing the smooth movement in the X-axis or Y-axis direction during machining. Through the cooperation of the guide rod assembly and the threaded screw rod assembly in this application, the precise positioning and smooth movement of the sliding seat along the guide rod assembly are ensured, thus realizing the precise adjustment of the machine tool in the X-axis and Y-axis directions, ensuring the stability of the relative position between the tool and the workpiece during the machining process, and further improving the machining accuracy and efficiency.

[0014] Preferably, the Z-axis drive mechanism includes a Z-axis support seat fixedly connected to the sliding seat in the X-axis drive mechanism, a Z-axis guide post movably penetrating through the Z-axis support seat, a Z-axis screw rod movably penetrating through the Z-axis support seat and threadedly engaged with the Z-axis support seat, a Z-axis moving plate fixedly connected to the upper end of the Z-axis guide post, and a Z-axis power assembly fixedly connected to the Z-axis moving plate and having an output end connected to the upper end of the Z-axis screw rod. The spindle cutting device is connected to the Z-axis guide post. The Z-axis power assembly is used to drive the Z-axis screw rod to rotate, and the Z-axis screw rod drives the Z-axis moving plate and the spindle cutting device to move vertically.

[0015] By adopting the above technical solution, the Z-axis power assembly drives the Z-axis screw to rotate, driving the Z-axis moving plate and the Z-axis guide column to move relative to the Z-axis support base along the vertical direction, so that the spindle cutting device realizes lifting adjustment along the vertical direction; through the rotation cooperation of the Z-axis screw and the support of the Z-axis guide column, the present application ensures the stable movement of the spindle cutting device in the vertical direction, further improves the precise control of the tool position during the machining process, enhances the machining stability and precision, and at the same time helps to reduce the influence of vibration and error on the machining quality.

[0016] Preferably, the spindle cutting device includes a cutting moving seat fixedly connected to the Z-axis guide column, an electric spindle drive mechanism inserted into the cutting moving seat, and a milling cutter mechanism connected to the output end of the electric spindle drive mechanism.

[0017] By adopting the above technical solution, the electric spindle drive mechanism is used to drive the milling cutter mechanism to perform rotary cutting operations; the fixed connection between the cutting moving seat and the Z-axis guide column ensures the stable support of the spindle cutting device in the vertical direction, and the electric spindle drive mechanism provides precise power transmission. By driving the milling cutter mechanism to rotate at high speed, efficient cutting of the workpiece is achieved; the present application improves the cutting stability during the machining process, reduces the influence of vibration on the machining precision, and at the same time the efficient transmission of the electric spindle drive mechanism ensures that the milling cutter mechanism can maintain good cutting performance at high rotational speeds, effectively improving the machining quality and efficiency.

[0018] Preferably, the cutting cooling device includes a temperature detection mechanism connected to the cutting moving seat and used to detect the temperature of the milling cutter mechanism, and a cooling spray mechanism connected to the cutting moving seat and located on the periphery of the milling cutter mechanism; the cooling spray mechanism is electrically connected to the temperature detection mechanism.

[0019] By adopting the above technical solution, the temperature detection mechanism is used to detect the temperature state of the milling cutter mechanism in real time, while the cooling spray mechanism is located on the periphery of the milling cutter mechanism and connected to the cutting moving seat; the temperature detection mechanism and the cooling spray mechanism are electrically connected to form a temperature feedback control system; when the temperature detection mechanism detects that the temperature of the milling cutter mechanism exceeds the preset value, it can trigger the cooling spray mechanism to start, spraying coolant on the milling cutter mechanism to reduce the temperature, thereby preventing tool wear and workpiece deformation caused by overheating; the cutting cooling device of the present application effectively improves the temperature control precision during the machining process, extends the service life of the tool, and improves the machining quality.

[0020] Preferably, the cooling spray mechanism includes a gas nozzle, a liquid nozzle inserted inside the gas nozzle, an annular gas conduit connected to the cutting moving seat and communicating with the gas nozzle, an annular liquid conduit inserted inside the annular gas conduit and communicating with the liquid nozzle, an air compressor disposed on the machine tool base and communicating with the annular gas conduit, and a cooling pump communicating with the annular liquid conduit; both the annular gas conduit and the annular liquid conduit are sleeved around the electric spindle drive mechanism, and a plurality of the gas nozzles and the liquid nozzles are arranged in an array along the circumferential side of the milling cutter mechanism.

[0021] By adopting the above technical solution, the cooling spray mechanism is composed of a plurality of gas nozzles and liquid nozzles. The liquid nozzle is inserted inside the gas nozzle to ensure that the coolant and air can be accurately sprayed onto the milling cutter mechanism. The gas ejected from the gas nozzle can also form an air wall to precisely guide the coolant column, reducing the spraying and waste of the coolant and improving the cooling efficiency; the gas nozzles and the liquid nozzles are arranged in an array along the circumferential side of the milling cutter mechanism to achieve a uniform cooling spray effect; the gas nozzles are connected to the air compressor on the machine tool base through the annular gas conduit to provide compressed air; the annular gas conduit is connected to the annular liquid conduit, and the annular liquid conduit is inserted inside the annular gas conduit and communicates with the liquid nozzle; the cooling pump is connected to the annular liquid conduit and is responsible for transporting the cooling liquid to the liquid nozzle; the temperature detection mechanism is electrically connected to the cooling pump and the air compressor respectively; The design of the double-layer pipeline in this application realizes the synchronous transmission of the coolant and the compressed air, ensuring that the cooling effect is more uniform and rapid; the temperature detection mechanism is used to detect the temperature on the milling cutter mechanism to dynamically adjust the flow rate of the coolant and the pressure of the air, ensuring that the temperature of the milling cutter mechanism and the cutting area is always maintained within a reasonable range; this design not only effectively solves the problems of workpiece deformation and tool wear caused by high temperature, but also improves the energy efficiency of the cooling system, making the processing of high-hardness steel parts more accurate and reliable.

[0022] Preferably, a processing method for processing high-hardness steel parts includes the machine tool for processing high-hardness steel parts as described above. The real-time vibration frequency of the workpiece during processing on the support and fixing seat is f, the maximum vibration preset value of the workpiece during processing on the support and fixing seat is f 大 , and the minimum vibration preset value is f 小 , and further includes the following steps: S1: The hydraulic support mechanism expands and contracts to adjust the support and fixing seat to the initial height; S2: Install the workpiece on the support and fixing seat; S3: Each of the pressure detection mechanisms monitors the pressure state on the corresponding hydraulic support mechanism in real time to obtain the weight of the workpiece on the support fixing base, and the pressure detection mechanism triggers the hydraulic support mechanism to expand and contract to provide corresponding initial support forces for workpieces of different weights; S4: When the spindle cutting device cuts the workpiece, the pressure detection mechanism is used to monitor the pressure change on the corresponding hydraulic support mechanism, and the vibration detection mechanism is used to monitor the vibration frequency on the support fixing base; When f > f 大 , the vibration detection mechanism triggers the hydraulic support mechanism to extend upward; When f < f 小 , the vibration detection mechanism triggers the hydraulic support mechanism to contract downward; When f 大 > f > f 小 , the hydraulic support mechanism maintains a fixed height; S5: The cutting cooling device is used to monitor the cutting temperature on the spindle cutting device in real time and cool down the spindle cutting device; S6: After the workpiece is processed, the hydraulic support mechanism contracts to lower the support fixing base to the initial height.

[0023] By adopting the above technical solutions, the hydraulic support mechanism expands and contracts to adjust the support fixing base to the initial height, and then the workpiece is installed on the support fixing base; then, the pressure detection mechanism monitors the pressure state on the hydraulic support mechanism in real time to obtain the weight of the workpiece on the support fixing base, and triggers the hydraulic support mechanism to expand and contract according to workpieces of different weights to provide corresponding initial support forces; during the process of the spindle cutting device cutting the workpiece, the pressure detection mechanism continues to monitor the pressure change on the hydraulic support mechanism, while the vibration detection mechanism monitors the vibration frequency on the support fixing base; if the real-time vibration frequency f is greater than the maximum vibration preset value f 大 , the vibration detection mechanism will trigger the hydraulic support mechanism to extend upward; if f 小 is less than the minimum vibration preset value f 小 , the hydraulic support mechanism contracts downward; when f is between f 大 and f 小 , the hydraulic support mechanism maintains a fixed height; the cutting cooling device monitors the cutting temperature of the spindle cutting device in real time and implements cooling; after the workpiece is processed, the hydraulic support mechanism contracts to lower the support fixing base to the initial height; through the above steps of the present application, it is ensured that the support force and stability of the workpiece during the processing are adjusted in real time, effectively reducing vibration and temperature, improving the processing accuracy and efficiency, and prolonging the service life of the tool.

[0024] In summary, the present application includes at least one of the following beneficial technical effects: 1. A machine tool for processing high-hardness steel parts. The hydraulic support mechanism is used to adjust the height of the support fixing seat. The shock-absorbing base is used to absorb the vibration during the workpiece processing. The cutting cooling device is used to cool the spindle cutting device during the cutting process. The pressure detection mechanism triggers the expansion and contraction of the hydraulic support mechanism by detecting the weight of the workpiece on the support fixing seat, and is then used to adjust the supporting force of the support fixing seat for workpieces of different weights. The vibration detection mechanism is responsible for detecting the vibration frequency of the workpiece during processing on the support fixing seat. When the vibration frequency is greater than the maximum vibration preset value, the vibration detection mechanism triggers the hydraulic support mechanism to extend upward, thereby increasing the height and rigidity of the hydraulic support mechanism, absorbing vibration and increasing the supporting force. When the vibration frequency is less than the minimum vibration preset value, the vibration detection mechanism triggers the hydraulic support mechanism to contract downward, reducing the rigidity of the hydraulic support mechanism, enabling the hydraulic support mechanism to save energy without affecting stability, and preventing the support system from being too rigid. By precisely detecting and adjusting the support strength of the workpiece, the present application can effectively reduce the impact of vibration on the processing process, improve the stability and accuracy of processing, reduce workpiece deformation, extend the tool life, and overall improve the processing quality and efficiency; 2. A machine tool for processing high-hardness steel parts. The gas ejected by the gas nozzle can form an air wall to precisely guide the coolant column, reducing the spraying and waste of coolant and improving the cooling efficiency. The design of the double-layer pipeline in the present application realizes the synchronous transmission of coolant and compressed air, ensuring that the cooling effect is more uniform and rapid. The temperature detection mechanism is used to detect the temperature on the milling cutter mechanism to dynamically adjust the flow rate of the coolant and the pressure of the air, ensuring that the temperature of the milling cutter mechanism and the cutting area always remains within a reasonable range. This design not only effectively solves the problems of workpiece deformation and tool wear caused by high temperature, but also improves the energy efficiency of the cooling system, making the processing of high-hardness steel parts more accurate and reliable; 3. A processing method for processing high-hardness steel parts. The hydraulic support mechanism expands and contracts to adjust the support fixing seat to the initial height, and then the workpiece is installed on the support fixing seat. Next, the pressure detection mechanism continuously monitors the pressure state on the hydraulic support mechanism to obtain the weight of the workpiece on the support fixing seat, and triggers the expansion and contraction of the hydraulic support mechanism according to workpieces of different weights to provide the corresponding initial supporting force. During the process of the spindle cutting device cutting the workpiece, the pressure detection mechanism continues to monitor the pressure change on the hydraulic support mechanism, while the vibration detection mechanism monitors the vibration frequency on the support fixing seat. If the real-time vibration frequency f is greater than the maximum vibration preset value f 大 , the vibration detection mechanism will trigger the hydraulic support mechanism to extend upward; if f 小 is less than the minimum vibration preset value f 小 , the hydraulic support mechanism will contract downward; when f is between f 大 and f小 When in between, the hydraulic support mechanism maintains a fixed height; the cutting cooling device monitors the cutting temperature of the spindle cutting device in real time and implements cooling; after the workpiece machining is completed, the hydraulic support mechanism contracts to lower the support fixing seat to the initial height; through the above steps, the present application ensures real-time adjustment of the support force and stability of the workpiece during the machining process, effectively reducing vibration and temperature, improving machining accuracy and efficiency, and extending the service life of the tool. Description of the Drawings

[0025] Figure 1 is a schematic three-dimensional structure of an embodiment of a machine tool for machining high-hardness steel parts in the present application Figure 1 。

[0026] Figure 2 is a schematic three-dimensional structure of an embodiment of a machine tool for machining high-hardness steel parts in the present application Figure 2 。

[0027] Figure 3 is a schematic cross-sectional structure diagram of an embodiment of a machine tool for machining high-hardness steel parts in the present application.

[0028] Figure 4 For Figure 3 an enlarged view of part A in

[0029] Figure 5 is a schematic step flow diagram of an embodiment of a machining method for machining high-hardness steel parts in the present application.

[0030] Description of the Reference Numerals: 1, machine tool base; 2, damping support device; 21, shock-absorbing base; 22, support fixing seat; 23, hydraulic support mechanism; 24, pressure detection mechanism; 25, vibration detection mechanism; 211, steel plate support layer; 212, shock-absorbing rubber layer; 213, carbon fiber composite layer; 231, first hydraulic support column; 232, second hydraulic support column; 233, third hydraulic support column; 234, fourth hydraulic support column; 241, first pressure detection component; 242, second pressure detection component; 243, third pressure detection component; 244, fourth pressure detection component; 251, first vibration detection component; 252, second vibration detection component; 253, third vibration detection component; 254, fourth vibration detection component; 3. Spindle cutting device; 31. Cutting moving seat; 32. Electric spindle drive mechanism; 33. Milling cutter mechanism; 4. Cutting drive device; 41. X-axis drive mechanism; 42. Z-axis drive mechanism; 43. Y-axis drive mechanism; 411. Drive support frame; 412. Guide rod assembly; 413. Drive assembly; 414. Threaded lead screw assembly; 415. Sliding seat; 421. Z-axis support seat; 422. Z-axis guide column; 423. Z-axis screw; 424. Z-axis moving plate; 425. Z-axis power assembly; 5. Cutting cooling device; 51. Temperature detection mechanism; 52. Cooling spray mechanism; 521. Gas nozzle; 522. Liquid nozzle; 523. Annular gas conduit; 524. Annular liquid conduit; 525. Air compressor; 526. Cooling pump. Detailed implementation mode

[0031] The following is further described in detail with reference to the attached Figures 1 to 5 This application is further described in detail.

[0032] The embodiment of this application discloses a machine tool and a processing method for processing high-hardness steel parts. Refer to Figure 1 , a machine tool for processing high-hardness steel parts includes a machine tool base 1, a damping support device 2 provided on the machine tool base 1 and used for supporting the workpiece, a spindle cutting device 3 provided on the machine tool base 1 and located above the damping support device 2, a cutting drive device 4 used for driving the relative movement between the spindle cutting device 3 and the damping support device 2, and a cutting cooling device 5 connected to the spindle cutting device 3 and used for cooling the spindle cutting device 3; the cutting drive device 4 is respectively used for connecting the spindle cutting device 3 and the machine tool base 1, and connecting the damping support device 2 and the machine tool base 1; The damping support device 2 includes a shock-absorbing base 21 connected to the cutting drive device 4, a support fixing seat 22 located above the shock-absorbing base 21 and used for fixedly supporting the workpiece, a hydraulic support mechanism 23 provided between the shock-absorbing base 21 and the support fixing seat 22 and used for supporting the support fixing seat 22, a pressure detection mechanism 24 provided between the hydraulic support mechanism 23 and the shock-absorbing base 21 and electrically connected to the hydraulic support mechanism 23, and a vibration detection mechanism 25 provided between the support fixing seat 22 and the hydraulic support mechanism 23 and electrically connected to the hydraulic support mechanism 23; The vibration detection mechanism 25 is used to detect the vibration frequency of the workpiece during processing on the support fixing seat 22. When the vibration frequency of the workpiece processed on the support fixing seat 22 is greater than the maximum vibration preset value, the vibration detection mechanism 25 triggers the hydraulic support mechanism 23 to extend upward; when the vibration frequency of the workpiece processed on the support fixing seat 22 is less than the minimum vibration preset value, the vibration detection mechanism 25 triggers the hydraulic support mechanism 23 to contract downward.

[0033] The hydraulic support mechanism 23 of this application is used to adjust the height of the support fixing seat 22. The shock-absorbing base 21 is used to absorb the vibration during the workpiece processing. The cutting cooling device 5 is used to cool down the spindle cutting device 3 during the cutting process. The pressure detection mechanism 24 triggers the expansion and contraction of the hydraulic support mechanism 23 by detecting the weight of the workpiece on the support fixing seat 22, and is thus used to adjust the supporting force of the support fixing seat 22 for workpieces of different weights. The vibration detection mechanism 25 is responsible for detecting the vibration frequency of the workpiece during processing on the support fixing seat 22. When the vibration frequency is greater than the maximum vibration preset value, the vibration detection mechanism 25 triggers the hydraulic support mechanism 23 to extend upward, thereby increasing the height and rigidity of the hydraulic support mechanism 23, absorbing the vibration and increasing the supporting force. When the vibration frequency is less than the minimum vibration preset value, the vibration detection mechanism 25 triggers the hydraulic support mechanism 23 to contract downward, reducing the rigidity of the hydraulic support mechanism 23, enabling the hydraulic support mechanism 23 to save energy without affecting stability and preventing the support system from being too rigid. By precisely detecting and adjusting the support strength of the workpiece, this application can effectively reduce the impact of vibration on the processing process, improve the stability and accuracy of processing, reduce workpiece deformation, extend the tool life, and overall improve the processing quality and efficiency. The vibration detection mechanism 25 is preferably a vibration sensor, the pressure detection mechanism 24 is preferably a pressure sensor, the hydraulic support mechanism 23 is preferably a hydraulic support column, and the workpiece is preferably a high-hardness steel workpiece.

[0034] Further, as Figure 2 shown, the hydraulic support mechanism 23 includes a first hydraulic support column 231, a second hydraulic support column 232, a third hydraulic support column 233, and a fourth hydraulic support column 234 that are successively located at the included angle positions of the support fixing seat 22. The pressure detection mechanism 24 includes a first pressure detection component 241 connected to the lower end of the first hydraulic support column 231, a second pressure detection component 242 connected to the lower end of the second hydraulic support column 232, a third pressure detection component 243 connected to the lower end of the third hydraulic support column 233, and a fourth pressure detection component 244 connected to the lower end of the fourth hydraulic support column 234. The vibration detection mechanism 25 includes a first vibration detection component 251 connected to the upper end of the first hydraulic support column 231, a second vibration detection component 252 connected to the upper end of the second hydraulic support column 232, a third vibration detection component 253 connected to the upper end of the third hydraulic support column 233, and a fourth vibration detection component 254 connected to the upper end of the fourth hydraulic support column 234.

[0035] The hydraulic support mechanism 23 of this application is used to support and stabilize the workpiece. The pressure detection mechanism 24 is used to monitor the pressure of each hydraulic support mechanism 23 in real time to ensure the balance and stability of the support. The vibration detection mechanism 25 is used to detect the vibration of the workpiece during processing. The first hydraulic support column 231 is respectively and correspondingly connected to the first pressure detection component 241 and the first vibration detection component 251. The second hydraulic support column 232 is respectively and correspondingly connected to the second pressure detection component 242 and the second vibration detection component 252. The third hydraulic support column 233 is respectively and correspondingly connected to the third pressure detection component 243 and the third vibration detection component 253. The fourth hydraulic support column 234 is respectively and correspondingly connected to the fourth pressure detection component 244 and the fourth vibration detection component 254, so as to form 4 support adjustment areas. The present application can perform local adjustment according to the force and vibration conditions of different areas, avoid excessive or insufficient rigidity, and ensure that the system response is more flexible and accurate; When the vibration detection mechanism 25 detects that the vibration frequency of the workpiece is too high, the hydraulic support mechanism 23 automatically extends through the hydraulic support column to enhance the support for the workpiece and reduce the vibration. When the vibration frequency drops to the preset range, the hydraulic support column contracts to reduce the support strength. Through multi-point support and detection, the present application realizes the precise control and adaptive adjustment of the machining vibration of the workpiece, effectively reduces the influence of vibration on the machining quality, and improves the machining accuracy and efficiency.

[0036] Furthermore, as Figure 2 and Figure 3 shown, the shock-absorbing base 21 includes a steel plate support layer 211 connected to the cutting drive device 4, a shock-absorbing rubber layer 212 located on the upper side of the steel plate support layer 211 and tightly connected to the steel plate support layer 211, and a carbon fiber composite layer 213 located on the upper side of the shock-absorbing rubber layer 212 and tightly connected to the shock-absorbing rubber layer 212; the pressure detection mechanism 24 is fixedly connected to the carbon fiber composite layer 213.

[0037] The shock-absorbing base 21 of the present application is composed of multiple layers. The steel plate support layer 211 at the bottom of the shock-absorbing base 21 is connected to the cutting drive device 4 and is used to stably support the entire damping support device 2. The shock-absorbing rubber layer 212 is tightly attached to the upper side of the steel plate support layer 211, and the shock-absorbing rubber layer 212 provides an elastic buffering function and can effectively absorb and reduce the vibration generated during the machining process. The carbon fiber composite layer 213 is tightly attached above the shock-absorbing rubber layer 212. The high strength and light weight of the carbon fiber composite layer 213 further enhance the overall rigidity and shock-absorbing ability of the shock-absorbing base 21. At the same time, the carbon fiber composite layer 213 is fixedly connected to the pressure detection mechanism 24 and is used to detect the pressure change from the hydraulic support mechanism 23. When the workpiece is machined, the steel plate support layer 211 provides basic support, the shock-absorbing rubber layer 212 absorbs the vibration during machining, and the carbon fiber composite layer 213 enhances the structural strength and transmits the pressure detection signal. The close combination of each layer ensures that the shock-absorbing base 21 has high-efficiency vibration buffering and pressure-bearing capabilities, thereby effectively reducing the influence of vibration on the workpiece and the tool during the machining process, improving the machining stability, accuracy and efficiency, and prolonging the service life of the machine tool and the tool.

[0038] Specifically, as Figure 1 shown, the cutting drive device 4 includes an X-axis drive mechanism 41 connected to the machine tool base 1 and arranged horizontally and transversely, a Z-axis drive mechanism 42 connected to the moving end of the X-axis drive mechanism 41 and arranged vertically, and a Y-axis drive mechanism 43 arranged horizontally and longitudinally between the machine tool base 1 and the shock absorption base 21, and the shock absorption base 21 is connected to the moving end of the Y-axis drive mechanism 43; the spindle cutting device 3 is connected to the Z-axis drive mechanism 42.

[0039] In this application, the moving end of the Z-axis drive mechanism 42 is connected to the spindle cutting device 3 and is used to drive the up and down movement of the spindle cutting device 3; the Y-axis drive mechanism 43 is arranged horizontally and longitudinally between the machine tool base 1 and the shock absorption base 21, and the moving end of the Y-axis drive mechanism 43 is connected to the shock absorption base 21 and is used to drive the shock absorption base 21 and the workpiece above to move in the Y-axis direction; during the cutting process, the X-axis drive mechanism 41 adjusts the horizontal movement of the spindle cutting device 3, the Z-axis drive mechanism 42 adjusts the up and down position of the spindle cutting device 3, and the Y-axis drive mechanism 43 pushes the shock absorption base 21 and the workpiece to move longitudinally, and precise three-dimensional cutting operations are achieved through three-axis linkage; this application can flexibly adjust the relative position between the workpiece and the cutting tool, ensure the machining accuracy, reduce errors, improve the machining efficiency at the same time, and ensure high cutting stability and flexibility when machining high-hardness steel parts.

[0040] More specifically, as Figure 2 and Figure 3 shown, both the X-axis drive mechanism 41 and the Y-axis drive mechanism 43 include a drive support frame 411, a guide rod assembly 412 fixedly connected to the drive support frame 411, a drive assembly 413 fixedly connected to the drive support frame 411, a threaded lead screw assembly 414 fixedly connected to the output end of the drive assembly 413 and rotatably connected to the drive support frame 411, and a sliding seat 415 sleeved on the outer side walls of the threaded lead screw assembly 414 and the guide rod assembly 412 and threadedly engaged with the threaded lead screw assembly 414; the drive assembly 413 is used to drive the threaded lead screw assembly 414 to rotate so that the threaded lead screw assembly 414 drives the sliding seat 415 to move along the length direction of the guide rod assembly 412.

[0041] In this application, when the drive assembly 413 drives the threaded lead screw assembly 414 to rotate, the threaded lead screw assembly 414 drives the sliding seat 415 to move along the length direction of the guide rod assembly 412, thereby realizing the smooth movement in the X-axis or Y-axis direction during processing; through the cooperation of the guide rod assembly 412 and the threaded lead screw assembly 414 in this application, the precise positioning and smooth movement of the sliding seat 415 along the guide rod assembly 412 are ensured, thereby realizing the precise adjustment of the machine tool in the X-axis and Y-axis directions, ensuring the stability of the relative position between the tool and the workpiece during the processing, and further improving the machining accuracy and efficiency; The driving component 413 is preferably a motor.

[0042] In addition, as Figure 2 and Figure 3 shown, the Z-axis driving mechanism 42 includes a Z-axis support base 421 fixedly connected to the sliding base 415 in the X-axis driving mechanism 41, a Z-axis guiding column 422 movably inserted through the Z-axis support base 421, a Z-axis screw rod 423 movably inserted through the Z-axis support base 421 and threadedly engaged with the Z-axis support base 421, a Z-axis moving plate 424 fixedly connected to the upper end of the Z-axis guiding column 422, and a Z-axis power assembly 425 fixedly connected to the Z-axis moving plate 424 and having an output end connected to the upper end of the Z-axis screw rod 423; the spindle cutting device 3 is connected to the Z-axis guiding column 422, and the Z-axis power assembly 425 is used to drive the Z-axis screw rod 423 to rotate, and the Z-axis screw rod 423 drives the Z-axis moving plate 424 and the spindle cutting device 3 to move in the vertical direction.

[0043] In the present application, the spindle cutting device 3 is connected to the Z-axis guiding column 422. The Z-axis power assembly 425 drives the Z-axis screw rod 423 to rotate, driving the Z-axis moving plate 424 and the Z-axis guiding column 422 to move relative to the Z-axis support base 421 in the vertical direction, so that the spindle cutting device 3 realizes lifting adjustment in the vertical direction; in the present application, through the rotational cooperation of the Z-axis screw rod 423 and the support of the Z-axis guiding column 422, the stable movement of the spindle cutting device 3 in the vertical direction is ensured, further improving the precise control of the tool position during the machining process, enhancing the machining stability and accuracy, and at the same time helping to reduce the influence of vibration and error on the machining quality; The Z-axis power assembly 425 is preferably a motor.

[0044] And, as Figure 2 shown, the spindle cutting device 3 includes a cutting moving seat 31 fixedly connected to the Z-axis guiding column 422, an electric spindle driving mechanism 32 inserted into the cutting moving seat 31, and a milling cutter mechanism 33 connected to the output end of the electric spindle driving mechanism 32.

[0045] In the present application, the electric spindle driving mechanism 32 is used to drive the milling cutter mechanism 33 to perform rotary cutting operations; the fixed connection between the cutting moving seat 31 and the Z-axis guiding column 422 ensures the stable support of the spindle cutting device 3 in the vertical direction. The electric spindle driving mechanism 32 provides precise power transmission. By driving the milling cutter mechanism 33 to rotate at high speed, efficient cutting machining of the workpiece is realized; in the present application, the cutting stability during the machining process is improved, the influence of vibration on the machining accuracy is reduced, and at the same time, the efficient transmission of the electric spindle driving mechanism 32 ensures that the milling cutter mechanism 33 can maintain good cutting performance at high rotational speeds, effectively improving the machining quality and efficiency; The electric spindle driving mechanism 32 is preferably an electric spindle or a motor.

[0046] Further, as Figure 2 shown, the cutting cooling device 5 includes a temperature detection mechanism 51 connected to the cutting moving seat 31 and used for detecting the temperature of the milling cutter mechanism 33, and a cooling spray mechanism 52 connected to the cutting moving seat 31 and located on the periphery of the milling cutter mechanism 33; the cooling spray mechanism 52 is electrically connected to the temperature detection mechanism 51.

[0047] The temperature detection mechanism 51 of the present application is used to detect the temperature state of the milling cutter mechanism 33 in real time, and the cooling spray mechanism 52 is located on the periphery of the milling cutter mechanism 33 and connected to the cutting moving seat 31; an electrical connection is established between the temperature detection mechanism 51 and the cooling spray mechanism 52 to form a temperature feedback control system; when the temperature detection mechanism 51 detects that the temperature of the milling cutter mechanism 33 exceeds the preset value, it can trigger the cooling spray mechanism 52 to start, spray coolant on the milling cutter mechanism 33, and reduce the temperature, thereby preventing tool wear and workpiece deformation caused by overheating; the cutting cooling device 5 of the present application effectively improves the temperature control accuracy during the machining process, extends the service life of the tool, and improves the machining quality; The temperature detection mechanism 51 is preferably an infrared temperature sensor.

[0048] Furthermore, as Figures 2 to 4 shown, the cooling spray mechanism 52 includes a gas nozzle 521, a liquid nozzle 522 inserted inside the gas nozzle 521, an annular gas conduit 523 connected to the cutting moving seat 31 and communicating with the gas nozzle 521, an annular liquid conduit 524 inserted into the annular gas conduit 523 and communicating with the liquid nozzle 522, an air compressor 525 provided on the machine tool base 1 and communicating with the annular gas conduit 523, and a cooling pump 526 communicating with the annular liquid conduit 524; both the annular gas conduit 523 and the annular liquid conduit 524 are sleeved on the periphery of the electric spindle drive mechanism 32, and a plurality of gas nozzles 521 and liquid nozzles 522 are arranged in an array along the periphery of the milling cutter mechanism 33.

[0049] The cooling spray mechanism 52 of the present application is composed of a plurality of gas nozzles 521 and liquid nozzles 522. The liquid nozzle 522 is inserted inside the gas nozzle 521 to ensure that the coolant and air can be accurately sprayed onto the milling cutter mechanism 33. The gas sprayed by the gas nozzle 521 can also form an air wall to accurately guide the coolant column, reduce the spraying and waste of the coolant, and improve the cooling efficiency. The gas nozzle 521 and the liquid nozzle 522 are arranged in an array along the periphery of the milling cutter mechanism 33 to achieve a uniform cooling spraying effect. The gas nozzle 521 is connected to the air compressor 525 on the machine tool base 1 through the annular gas conduit 523 to provide compressed air; the annular gas conduit 523 is connected to the annular liquid conduit 524, and the annular liquid conduit 524 is inserted in the annular gas conduit 523 and communicated with the liquid nozzle 522; the cooling pump 526 is connected to the annular liquid conduit 524 and is responsible for conveying the cooling liquid to the liquid nozzle 522; the temperature detection mechanism 51 is electrically connected to the cooling pump 526 and the air compressor 525 respectively; The double-layer pipeline design of the present application realizes the synchronous transmission of coolant and compressed air, ensuring a more uniform and rapid cooling effect; the temperature detection mechanism 51 is used to detect the temperature on the milling cutter mechanism 33 to dynamically adjust the flow rate of the coolant and the pressure of the air to ensure that the temperature of the milling cutter mechanism 33 and the cutting area is always maintained within a reasonable range; this design not only effectively solves the problems of workpiece deformation and tool wear caused by high temperature, but also improves the energy efficiency of the cooling system, making the processing of high-hardness steel parts more precise and reliable.

[0050] Specifically, Figure 5 As shown, a processing method for high-hardness steel parts processing includes a machine tool for high-hardness steel parts processing, the real-time vibration frequency of the workpiece processing on the support fixing seat 22 is f, and the maximum vibration preset value of the workpiece processing on the support fixing seat 22 is f 大 The minimum vibration preset value is f 小 , further comprising the following steps: S1: The hydraulic support mechanism 23 is extended and retracted to adjust the support fixing seat 22 to an initial height; S2: Install the workpiece onto the supporting fixing seat 22; S3: Each pressure detection mechanism 24 monitors the pressure state of the corresponding hydraulic support mechanism 23 in real time to obtain the weight of the workpiece on the support fixing seat 22. The pressure detection mechanism 24 triggers the extension and retraction of the hydraulic support mechanism 23 to provide corresponding initial support force for workpieces of different weights; S4: When the spindle cutting device 3 is cutting the workpiece, the pressure detection mechanism 24 is used to monitor the pressure change on the corresponding hydraulic support mechanism 23, and the vibration detection mechanism 25 is used to monitor the vibration frequency on the support fixing seat 22; When f>f 大When it is time, the vibration detection mechanism 25 triggers the hydraulic support mechanism 23 to extend upward; When f < f 小 When it is time, the vibration detection mechanism 25 triggers the hydraulic support mechanism 23 to contract downward; When f 大 > f > f 小 When it is time, the hydraulic support mechanism 23 maintains a fixed height; S5: The cutting cooling device 5 is used to monitor the cutting temperature on the spindle cutting device 3 in real time and cool down the spindle cutting device 3; S6: After the workpiece machining is completed, the hydraulic support mechanism 23 contracts to lower the support fixing seat 22 to the initial height.

[0051] In this application, the hydraulic support mechanism 23 expands and contracts to adjust the support fixing seat 22 to the initial height, and then the workpiece is installed on the support fixing seat 22; then, the pressure detection mechanism 24 monitors the pressure state on the hydraulic support mechanism 23 in real time to obtain the weight of the workpiece on the support fixing seat 22, and triggers the expansion and contraction of the hydraulic support mechanism 23 according to workpieces of different weights to provide corresponding initial support forces; during the process of the spindle cutting device 3 cutting the workpiece, the pressure detection mechanism 24 continues to monitor the pressure change on the hydraulic support mechanism 23, while the vibration detection mechanism 25 monitors the vibration frequency on the support fixing seat 22; if the real-time vibration frequency f is greater than the maximum vibration preset value f 大 , the vibration detection mechanism 25 will trigger the hydraulic support mechanism 23 to extend upward; if f 小 is less than the minimum vibration preset value f 小 , then the hydraulic support mechanism 23 contracts downward; when f is between f 大 and f 小 , the hydraulic support mechanism 23 maintains a fixed height; the cutting cooling device 5 monitors the cutting temperature of the spindle cutting device 3 in real time and implements cooling; after the workpiece machining is completed, the hydraulic support mechanism 23 contracts to lower the support fixing seat 22 to the initial height; through the above steps, this application ensures real-time adjustment of the support force and stability of the workpiece during the machining process, effectively reduces vibration and temperature, improves machining accuracy and efficiency, and extends the service life of the tool.

[0052] The implementation principle of a machine tool and a machining method for high-hardness steel workpiece machining in an embodiment of this application is: A machine tool for processing high-hardness steel parts. The hydraulic support mechanism 23 is used to adjust the height of the support fixing seat 22. The shock-absorbing base 21 is used to absorb the vibration during the workpiece processing. The cutting cooling device 5 is used to cool the spindle cutting device 3 during the cutting process. The pressure detection mechanism 24 triggers the expansion and contraction of the hydraulic support mechanism 23 by detecting the weight of the workpiece on the support fixing seat 22, and is then used to adjust the supporting force of the support fixing seat 22 for workpieces of different weights. The vibration detection mechanism 25 is responsible for detecting the vibration frequency of the workpiece during processing on the support fixing seat 22. When the vibration frequency is greater than the maximum vibration preset value, the vibration detection mechanism 25 triggers the hydraulic support mechanism 23 to extend upward, thereby increasing the height and rigidity of the hydraulic support mechanism 23, absorbing the vibration and increasing the supporting force. When the vibration frequency is less than the minimum vibration preset value, the vibration detection mechanism 25 triggers the hydraulic support mechanism 23 to contract downward, reducing the rigidity of the hydraulic support mechanism 23, enabling the hydraulic support mechanism 23 to save energy without affecting stability, and preventing the support system from being too rigid. Through precise detection and adjustment of the supporting strength of the workpiece, this application can effectively reduce the impact of vibration on the processing process, improve the stability and accuracy of processing, reduce workpiece deformation, extend the tool life, and overall improve the processing quality and efficiency. The cooling spray mechanism 52 is composed of a plurality of gas nozzles 521 and liquid nozzles 522. The liquid nozzles 522 are inserted inside the gas nozzles 521 to ensure that the coolant and air can be precisely sprayed onto the milling cutter mechanism 33. The gas ejected from the gas nozzles 521 can also form an air wall to precisely guide the coolant column, reducing the spraying and waste of the coolant and improving the cooling efficiency. The gas nozzles 521 and the liquid nozzles 522 are arranged in an array along the circumferential side of the milling cutter mechanism 33 to achieve a uniform cooling spray effect. The gas nozzles 521 are connected to an air compressor 525 on the machine tool base 1 through an annular gas conduit 523 to provide compressed air. The annular gas conduit 523 is connected to an annular liquid conduit 524. The annular liquid conduit 524 is inserted inside the annular gas conduit 523 and is connected to the liquid nozzles 522. A cooling pump 526 is connected to the annular liquid conduit 524 and is responsible for transporting the cooling liquid to the liquid nozzles 522. The temperature detection mechanism 51 is electrically connected to the cooling pump 526 and the air compressor 525 respectively. The design of the double-layer pipeline in this application realizes the synchronous transmission of the coolant and the compressed air, ensuring that the cooling effect is more uniform and rapid. The temperature detection mechanism 51 is used to detect the temperature on the milling cutter mechanism 33 to dynamically adjust the flow rate of the coolant and the pressure of the air, ensuring that the temperature of the milling cutter mechanism 33 and the cutting area always remains within a reasonable range. This design not only effectively solves the problems of workpiece deformation and tool wear caused by high temperature, but also improves the energy efficiency of the cooling system, making the processing of high-hardness steel parts more accurate and reliable. A processing method for machining high-hardness steel parts. The hydraulic support mechanism 23 expands and contracts to adjust the support fixing seat 22 to the initial height, and then the workpiece is installed on the support fixing seat 22. Next, the pressure detection mechanism 24 monitors the pressure state on the hydraulic support mechanism 23 in real time to obtain the weight of the workpiece on the support fixing seat 22, and triggers the expansion and contraction of the hydraulic support mechanism 23 according to workpieces of different weights to provide corresponding initial support forces. During the process of the spindle cutting device 3 cutting the workpiece, the pressure detection mechanism 24 continues to monitor the pressure change on the hydraulic support mechanism 23, while the vibration detection mechanism 25 monitors the vibration frequency on the support fixing seat 22. If the real-time vibration frequency f is greater than the maximum vibration preset value f 大 , the vibration detection mechanism 25 will trigger the hydraulic support mechanism 23 to extend upward; if f 小 is less than the minimum vibration preset value f 小 , then the hydraulic support mechanism 23 contracts downward; when f is between f 大 and f 小 , the hydraulic support mechanism 23 maintains a fixed height; the cutting cooling device 5 monitors the cutting temperature of the spindle cutting device 3 in real time and implements cooling. After the workpiece machining is completed, the hydraulic support mechanism 23 contracts to lower the support fixing seat 22 to the initial height. Through the above steps, this application ensures real-time adjustment of the support force and stability of the workpiece during the machining process, effectively reduces vibration and temperature, improves machining accuracy and efficiency, and extends the service life of the tool.

[0053] The above are all preferred embodiments of this application, and the protection scope of this application is not limited thereby. Therefore, all equivalent changes made according to the structure, shape, and principle of this application shall be covered within the protection scope of this application.

Claims

1. A machine tool for machining high-hardness steel parts, characterized in that, It includes a machine tool base (1), a damping support device (2) provided on the machine tool base (1) and used for supporting a workpiece, a spindle cutting device (3) provided on the machine tool base (1) and located above the damping support device (2), a cutting drive device (4) used for driving the relative movement between the spindle cutting device (3) and the damping support device (2), and a cutting cooling device (5) connected to the spindle cutting device (3) and used for cooling the spindle cutting device (3); the cutting drive device (4) is respectively used for connecting the spindle cutting device (3) and the machine tool base (1), and connecting the damping support device (2) and the machine tool base (1); The damping support device (2) includes a shock-absorbing base (21) connected to the cutting drive device (4), a support fixing seat (22) located above the shock-absorbing base (21) and used for fixedly supporting the workpiece, a hydraulic support mechanism (23) provided between the shock-absorbing base (21) and the support fixing seat (22) and used for supporting the support fixing seat (22), a pressure detection mechanism (24) provided between the hydraulic support mechanism (23) and the shock-absorbing base (21) and electrically connected to the hydraulic support mechanism (23), and a vibration detection mechanism (25) provided between the support fixing seat (22) and the hydraulic support mechanism (23) and electrically connected to the hydraulic support mechanism (23); The vibration detection mechanism (25) is used for detecting the vibration frequency of the workpiece during machining on the support fixing seat (22). When the vibration frequency of the workpiece machining on the support fixing seat (22) is greater than the maximum vibration preset value, the vibration detection mechanism (25) triggers the hydraulic support mechanism (23) to extend upward; when the vibration frequency of the workpiece machining on the support fixing seat (22) is less than the minimum vibration preset value, the vibration detection mechanism (25) triggers the hydraulic support mechanism (23) to contract downward.

2. The machine tool for processing high-hardness steel parts according to claim 1, wherein The hydraulic support mechanism (23) includes a first hydraulic support column (231), a second hydraulic support column (232), a third hydraulic support column (233), and a fourth hydraulic support column (234) that are sequentially located at the included angle positions of the support fixing seat (22); The pressure detection mechanism (24) includes a first pressure detection component (241) connected to the lower end of the first hydraulic support column (231), a second pressure detection component (242) connected to the lower end of the second hydraulic support column (232), a third pressure detection component (243) connected to the lower end of the third hydraulic support column (233), and a fourth pressure detection component (244) connected to the lower end of the fourth hydraulic support column (234); The vibration detection mechanism (25) includes a first vibration detection component (251) connected to the upper end of the first hydraulic support column (231), a second vibration detection component (252) connected to the upper end of the second hydraulic support column (232), a third vibration detection component (253) connected to the upper end of the third hydraulic support column (233), and a fourth vibration detection component (254) connected to the upper end of the fourth hydraulic support column (234).

3. A machine tool for machining high-hardness steel parts according to claim 1, characterized in that, The shock-absorbing base (21) includes a steel plate support layer (211) connected to the cutting drive device (4), a shock-absorbing rubber layer (212) located on the upper side of the steel plate support layer (211) and tightly connected to the steel plate support layer (211), and a carbon fiber composite layer (213) located on the upper side of the shock-absorbing rubber layer (212) and tightly connected to the shock-absorbing rubber layer (212); the pressure detection mechanism (24) is fixedly connected to the carbon fiber composite layer (213).

4. A machine tool for machining high-hardness steel parts according to claim 1, characterized in that, The cutting drive device (4) includes an X-axis drive mechanism (41) connected to the machine tool base (1) and arranged horizontally in the transverse direction, a Z-axis drive mechanism (42) connected to the mobile end of the X-axis drive mechanism (41) and arranged vertically, and a Y-axis drive mechanism (43) arranged horizontally in the longitudinal direction between the machine tool base (1) and the shock-absorbing base (21), the shock-absorbing base (21) is connected to the mobile end of the Y-axis drive mechanism (43); the spindle cutting device (3) is connected to the Z-axis drive mechanism (42).

5. A machine tool for machining high-hardness steel parts according to claim 4, characterized in that, Both the X-axis drive mechanism (41) and the Y-axis drive mechanism (43) include a drive support frame (411), a guide rod assembly (412) fixedly connected to the drive support frame (411), a drive component (413) fixedly connected to the drive support frame (411), a threaded lead screw assembly (414) fixedly connected to the output end of the drive component (413) and rotatably connected to the drive support frame (411), and a sliding seat (415) sleeved on the outer side walls of the threaded lead screw assembly (414) and the guide rod assembly (412) and in threaded cooperation with the threaded lead screw assembly (414); the drive component (413) is used to drive the threaded lead screw assembly (414) to rotate, so that the threaded lead screw assembly (414) drives the sliding seat (415) to move along the length direction of the guide rod assembly (412).

6. A machine tool for machining high-hardness steel parts according to claim 5, characterized in that, The Z-axis driving mechanism (42) includes a Z-axis support base (421) fixedly connected to the sliding seat (415) in the X-axis driving mechanism (41), a Z-axis guiding column (422) movably inserted through the Z-axis support base (421), a Z-axis screw rod (423) movably inserted through the Z-axis support base (421) and in threaded cooperation with the Z-axis support base (421), a Z-axis moving plate (424) fixedly connected to the upper end of the Z-axis guiding column (422), and a Z-axis power assembly (425) fixedly connected to the Z-axis moving plate (424) and with its output end connected to the upper end of the Z-axis screw rod (423); the main spindle cutting device (3) is connected to the Z-axis guiding column (422), the Z-axis power assembly (425) is used to drive the Z-axis screw rod (423) to rotate, and the Z-axis screw rod (423) drives the Z-axis moving plate (424) and the main spindle cutting device (3) to move in the vertical direction.

7. A machine tool for machining high-hardness steel parts according to claim 6, characterized in that, The main spindle cutting device (3) includes a cutting moving seat (31) fixedly connected to the Z-axis guiding column (422), an electric spindle driving mechanism (32) inserted into the cutting moving seat (31), and a milling cutter mechanism (33) connected to the output end of the electric spindle driving mechanism (32).

8. A machine tool for machining high-hardness steel parts according to claim 7, characterized in that, The cutting cooling device (5) includes a temperature detection mechanism (51) connected to the cutting moving seat (31) and used to detect the temperature of the milling cutter mechanism (33), and a cooling spray mechanism (52) connected to the cutting moving seat (31) and located on the periphery of the milling cutter mechanism (33); the cooling spray mechanism (52) is electrically connected to the temperature detection mechanism (51).

9. A machine tool for processing high-hardness steel parts according to claim 8, characterized in that, The cooling spray mechanism (52) includes a gas nozzle (521), a liquid nozzle (522) inserted inside the gas nozzle (521), an annular gas conduit (523) connected to the cutting moving seat (31) and communicating with the gas nozzle (521), an annular liquid conduit (524) inserted into the annular gas conduit (523) and communicating with the liquid nozzle (522), an air compressor (525) provided on the machine tool base (1) and communicating with the annular gas conduit (523), and a cooling pump (526) communicating with the annular liquid conduit (524); both the annular gas conduit (523) and the annular liquid conduit (524) are sleeved on the periphery of the electric spindle driving mechanism (32), and a plurality of the gas nozzles (521) and the liquid nozzles (522) are arranged in an array along the periphery of the milling cutter mechanism (33).

10. A processing method for machining high-hardness steel parts, characterized in that, A machine tool for processing high-hardness steel parts according to any one of claims 1 to 9, wherein the real-time vibration frequency of the workpiece processing on the support fixing seat (22) is f, and the maximum vibration preset value of the workpiece processing on the support fixing seat (22) is f 大 The minimum vibration preset value is f 小 , further comprising the following steps: S1: The hydraulic support mechanism (23) expands and contracts to adjust the support fixing seat (22) to the initial height; S2: Install the workpiece onto the support fixing seat (22); S3: Each of the pressure detection mechanisms (24) monitors the pressure state corresponding to the hydraulic support mechanism (23) in real time to obtain the weight of the workpiece on the support fixing base (22), and the pressure detection mechanism (24) triggers the hydraulic support mechanism (23) to expand and contract to provide corresponding initial support forces for workpieces of different weights; S4: When the spindle cutting device (3) cuts the workpiece, the pressure detection mechanism (24) is used to monitor the pressure change corresponding to the hydraulic support mechanism (23), and the vibration detection mechanism (25) is used to monitor the vibration frequency on the support fixing base (22); When f > f 大 the vibration detection mechanism (25) triggers the hydraulic support mechanism (23) to extend upward; When f < f 小 the vibration detection mechanism (25) triggers the hydraulic support mechanism (23) to contract downward; When f 大 > f > f 小 , the hydraulic support mechanism (23) maintains a fixed height; S5: The cutting cooling device (5) is used to monitor the cutting temperature on the spindle cutting device (3) in real time and cool down the spindle cutting device (3); S6: After the workpiece is processed, the hydraulic support mechanism (23) contracts to lower the support fixing base (22) to the initial height.

Images