Machine tool system for machining active metal materials

Abstract

The utility model provides a machine tool system for machining active metal materials, which comprises a machining center used for machining a workpiece through a cutter; the temperature detection unit is used for detecting the processing temperature; the cooling device sprays cold argon to the machining position, the temperature ranges from-10 DEG C to-60 DEG C, the pressure intensity ranges from 0.3 Mpa to 0.6 Mpa, and the cold argon is used for cooling the machining position; and the control unit is used for receiving the temperature parameters of the temperature detection unit and sending a command of spraying argon parameters to the cooling device according to the temperature parameters. In the machining process of the active metal material, a cold argon auxiliary cooling mode is adopted, a machining position is cooled through cold argon, the active metal material is prevented from being on fire in the machining process, the cold argon isolates the active metal material from air, meanwhile, the cold argon cannot chemically react with the active metal material, and the safety of the active metal material is improved. The active metal material is prevented from being oxidized, the processing safety is improved, the generation of built-up chipping nodules is inhibited, and the processing precision and quality are improved.

Description

Technical Field

[0001] The utility model relates to the field of mechanical processing cooling, in particular to a machine tool system for processing active metal materials. Background Art

[0002] During the machining process of metal materials, a large amount of heat will be generated between the tool and the workpiece due to cutting or milling. If it is not cooled, the accuracy and physical and chemical properties of the workpiece will be adversely affected. In the existing technical solutions, the cooling methods include coolant cooling and air cooling. Among them, coolant cooling requires water addition and drainage, which is inconvenient to operate and requires an additional water cooling system, which increases the complexity and cost of the machine. Compared with coolant cooling, air cooling has a slightly worse heat dissipation effect and cannot work at high intensity for a long time. The machine needs to have sufficient heat dissipation time intervals.

[0003] At the same time, during the metal machining process, due to the extrusion deformation and strong friction of the metal, a large pressure and high cutting temperature are generated between the chip and the front cutting edge. When the pressure and temperature conditions are appropriate, the friction resistance between the bottom layer of the chip and the front cutting edge is very large, which slows down the outflow speed of the bottom layer of the chip, forming a very thin stagnant layer. When the friction resistance between the stagnant layer and the front cutting edge exceeds the binding force inside the chip, the metal in the stagnant layer separates from the chip and adheres to the tool tip to form a built-up edge.

[0004] In the above situation, when processing active metal materials, a large amount of heat generated by cutting and direct contact with air are not isolated. The strong reducing properties of active metal materials will cause chemical reactions during high-temperature processing. Active metal materials will spontaneously ignite, resulting in fire during processing. The danger of processing is difficult to control, and it also increases the loss of active metal materials.

[0005] The existing machine tool systems that use coolant cooling or air cooling cannot effectively avoid the above problems. In addition, during the processing of coolant cooling and air cooling machines, the cooling adjustment is inconvenient and needs to be operated by a cooling device. During the processing, it will have a certain impact on the health of the operator operating the cooling device. At the same time, the low-temperature air used in the existing air cooling cannot avoid chemical reactions with active metal materials.

[0006] Therefore, there is a need for a machine tool system for processing metal materials, especially for the processing and cooling process of active metal materials, which can avoid oxidation of active metal materials during processing, prevent fire during processing, improve processing safety, inhibit the generation of chip buildup, and improve the processing accuracy and quality of the surface of active metal materials. Utility Model Content

[0007] In view of this, the purpose of the utility model is to provide a machine tool system for processing active metal materials, which uses inert gas to perform low-temperature treatment on the processed active metals, thereby avoiding oxidation of the active metal materials during the processing, preventing fire during the processing, improving the safety of processing, inhibiting the generation of chip buildup, and improving the processing accuracy and quality of the metal surface.

[0008] The machine tool system for processing active metal materials of the utility model comprises:

[0009] Machining centers, used to machine workpieces using cutting tools;

[0010] A temperature detection unit, used to detect the processing temperature;

[0011] A cooling device, which sprays cold argon gas at a temperature of -10°C to -60°C and a pressure of 0.3Mpa to 0.6Mpa to the processing position, wherein the cold argon gas is used to cool the processing position;

[0012] The control unit is used to receive the temperature parameters of the temperature detection unit and send a command of the injection argon gas parameters to the cooling device according to the temperature parameters.

[0013] Furthermore, the cooling device includes a cooling and pressurizing center and a nozzle, wherein the cooling and pressurizing center is used to form cold argon gas, and the nozzle is used to spray it to the processing position.

[0014] Furthermore, the cooling device also includes an argon storage tank and an insulation pipe, wherein the argon storage tank is used to transport the argon to the cooling and pressurizing center to form cold argon, and the insulation pipe is used to transport the cold argon to the nozzle.

[0015] Furthermore, one end of the insulation pipe is sealed and connected to the air outlet of the cooling and pressurizing center, and the nozzle is sealed and connected to the other end of the insulation pipe.

[0016] Furthermore, the end of the insulation pipe where the nozzle is arranged is U-shaped, and the nozzle is aligned with the processing position.

[0017] Furthermore, a telescopic device and a slide are installed on the machining center. The telescopic device is installed on the slide and is used to slide the telescopic device for translation. The telescopic device is driven by a servo motor.

[0018] Furthermore, the servo motor is used by sending instructions through a control program.

[0019] Furthermore, the nozzle is installed at the coaxial bottom of the telescopic device to adjust the position of the nozzle in the coaxial direction of the telescopic device.

[0020] Furthermore, the temperature detection unit is an infrared temperature sensor, which is installed on the machining center, and the temperature sensitive element of the infrared temperature sensor is aligned with the machining position.

[0021] Furthermore, the temperature detection unit and the control unit are connected via wireless data transmission.

[0022] The beneficial effects of the utility model are as follows: when the workpiece is processed by a machine tool, especially in the processing of active metal materials, the utility model adopts a cold argon gas-assisted cooling method instead of conventional liquid cooling and ordinary air cooling. The processing position is cooled by the cold argon gas to avoid the active metal material catching fire during the processing. While the cold argon gas isolates the active metal material from the air, it itself will not chemically react with the active metal material, thus avoiding oxidation of the active metal material, thereby improving processing safety, inhibiting the generation of chip buildup, and improving processing accuracy and quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The utility model is further described below in conjunction with the accompanying drawings and embodiments:

[0024] Figure 1 It is a structural schematic diagram of the utility model;

[0025] Figure 2 It is a control flow diagram of the utility model;

[0026] Figure 3 It is a structural schematic diagram of the telescopic device in the utility model;

[0027] Figure 4 It is a structural schematic diagram of the telescopic device in the utility model in the extended state.

[0028] Numbers in the figure: 1. Argon storage tank; 2. Air inlet pipe; 3. Cooling processing center; 4. Insulation pipe; 5. Nozzle; 6. Temperature detection unit; 7. Tool; 8. Air inlet; 9. Air outlet; 10. Workpiece; 11. Telescopic device; 12. Servo motor; 13. Synchronous belt; 14. Housing; 15. Rack; 16. Gear; 17. Screw; 18. Primary push rod; 19. Secondary push rod; 20. Slide. DETAILED DESCRIPTION

[0029] Figure 1 It is a structural schematic diagram of the utility model. Figure 2 It is a control flow diagram of the utility model, such as Figure 1 As shown: The machine tool system for processing active metal materials in this embodiment includes:

[0030] A machining center for machining a workpiece 10 by means of a tool 7;

[0031] A temperature detection unit 6, used to detect the processing temperature;

[0032] A cooling device, which sprays cold argon gas at -10°C to -60°C to a processing position, with a pressure controlled at 0.3Mpa to 0.6Mpa, wherein the cold argon gas is used to cool the processing position, and the processing position is the contact surface between the tool 7 and the workpiece 10;

[0033] A control unit, used for receiving the temperature parameters of the temperature detection unit and sending a command of the injection parameters of argon gas to the cooling device according to the temperature parameters;

[0034] In this embodiment, the machine tool system for processing active metal materials can select corresponding machining center models according to actual needs, such as horizontal three-axis, vertical three-axis and five-axis machine tools.

[0035] In this embodiment, the cooling device processes the room temperature argon gas according to the set parameters to produce cold argon gas with corresponding parameters. The temperature of the cold argon gas is -10°C to -60°C, and the pressure is 0.3Mpa to 0.6Mpa. The flow rate of the cold argon gas changes by adjusting the pressure. The greater the pressure, the higher the flow rate of the cold argon gas, and the smaller the pressure, the smaller the flow rate of the cold argon gas.

[0036] In this embodiment, the cooling device includes a cooling and pressurizing center 3 and a nozzle 5. The cooling and pressurizing center 3 is used to form cold argon gas, and the nozzle 5 is used to spray it to the processing position. The cooling and pressurizing center 3 can use cooling equipment such as a cold air blower to process the room temperature argon gas. In actual use, the cooling and pressurizing center 3 can be set according to the actual temperature and pressure required for the cold argon gas.

[0037] In this embodiment, the cooling device also includes an argon storage tank 1 and an insulation pipe 4. The argon storage tank 1 is used to transport argon to the cooling and pressurizing center 3 to form cold argon. The argon storage tank 1 is sealed and connected to one end of the intake pipe 2, and the other end of the intake pipe 2 is sealed and connected to the air inlet 8 of the cooling and pressurizing center 3; the insulation pipe is used to transport the cold argon to the nozzle 5, one end of the insulation pipe 4 is sealed and connected to the air outlet 9 of the cooling and pressurizing center 3, and the nozzle 5 is fixed to the other end of the insulation pipe 4. The insulation pipe 4 is used to guide the cold argon in the cooling and pressurizing center 3 to the nozzle 5. The insulation pipe 4 can prevent the loss of heat energy of the cold argon. The insulation pipe 4 is U-shaped at the end where the nozzle 5 is provided, and the nozzle 5 is aligned with the processing position.

[0038] In this embodiment, Figure 3As shown, the machining center is equipped with a telescopic device 11 and a slide 20, which are driven by a servo motor 12. The telescopic device 11 is installed on the slide 20 and is used to slide the telescopic device for translation. The nozzle 5 is installed at the bottom of the telescopic device 11. The telescopic device 11 and the slide 20 can fine-tune the position of the nozzle 5. When using different types of tools 7 or other types of machining centers, the servo motor 12 can be controlled by sending instructions through the PRC control program. After receiving the instructions, the servo motor 12 drives the telescopic device 11 and the slide 20 to perform corresponding actions.

[0039] In this embodiment, the telescopic device 11 is provided with two telescopic sections, including a primary telescopic section and a secondary telescopic section, the two telescopic sections are both coaxial cylinders, the height and bottom area of ​​the cylinder of the primary telescopic section are both greater than the height and bottom area of ​​the secondary telescopic section, the outer surface of the telescopic device 11 is a cylindrical shell 14 greater than the height and bottom area of ​​the cylinder of the primary telescopic section, a screw rod 17 is arranged at the axis center inside the cylindrical shell, the screw rod 17 connects the two telescopic sections at the bottom, and the axes of the screw rod 17, the cylindrical shell and the two telescopic sections are coaxial; a primary push rod 18 is arranged at the gaps on both sides symmetrically along the axis between the primary telescopic section and the cylindrical shell, which is used to push the primary telescopic section, the secondary telescopic section is embedded in the primary telescopic section, and a secondary push rod 19 is arranged at the gaps on both sides symmetrically along the axis between the primary telescopic section and the secondary telescopic section, which is used to push the secondary telescopic section, and the bottom of the secondary telescopic section is connected to the nozzle 5.

[0040] In this embodiment, the position of the nozzle 5 is adjusted in the vertical direction. When the telescopic device 11 needs to be extended, the PRC control program sends a command to the servo motor, and the servo motor drives the screw 17 through the synchronous belt. The screw 17 drives the gear 16 and the rack 15 connected to the first-level push rod 18, thereby pushing the first-level push rod 18 to drive the first-level telescopic section to extend. When the first-level telescopic section is extended to the maximum length, the first-level push rod 18 reaches the maximum pushing length. If it needs to continue to extend, the gear 16 and the rack 15 push the second-level push rod 19 to drive the second-level telescopic section to extend; when the telescopic device 11 needs to be retracted, it is only necessary to change the command sent by the PRC control program to the servo motor 12 to reverse the rotation direction of the servo motor.

[0041] In this embodiment, the temperature detection unit 6 is an infrared temperature sensor, which is installed on the machining center. The temperature sensitive element of the infrared temperature sensor is aligned with the contact surface between the tool 7 and the workpiece 10. During the use of the machining center, the infrared temperature sensor can be driven to move synchronously to ensure that the infrared temperature sensor can accurately detect the temperature of the machining position in real time.

[0042] In this embodiment, the temperature detection unit 6 and the control unit are connected by wireless data transmission, and the wireless data transmission method can be optical fiber transmission or network transmission. The wireless data transmission method used in the utility model is a 5G data transmission module. The temperature detection unit 6 can send the temperature parameters of the detected processing position to the control unit in real time through the 5G data transmission module. The control unit can be a smart phone, a tablet computer, a computer, etc. After receiving the temperature parameters sent by the temperature detection unit 6, the control unit controls the cooling device to adjust the set parameters of the cold argon gas through a pre-installed application to ensure that the temperature at the processing position can be controlled below 100°C during the processing. If an abnormally high temperature occurs, the control unit can automatically alarm, and the on-site operator can take timely measures to ensure the safety of the processing process.

[0043] In this embodiment, during the cutting process of the tool 7, the workpiece 10 is an active metal material. The active metal material can easily react chemically with gases such as oxygen and water vapor in the air to form corresponding oxides or hydroxides, making the surface of the active metal material fragile and oxidized. At the same time, during the machining process of the active metal material, a large amount of heat will be generated at the contact surface between the tool 7 and the active metal material, resulting in a temperature increase. The active metal material is very likely to spontaneously ignite at high temperatures.

[0044] Therefore, during the processing, it is necessary to take measures to isolate oxygen and reduce the temperature at the processing position, that is, use the cold argon gas to spray the processing position, form a cold argon gas flow on the contact surface of the tool 7 and the active metal material, isolate the active metal material from the air, and prevent oxygen and water vapor from chemically reacting with the active metal material. The argon gas used is an inert gas and will not chemically react with the active metal material during the processing. The cold argon gas with a temperature of -10°C to -60°C can reduce the temperature of the contact surface between the tool 7 and the active metal material, ensuring that the temperature at the processing position can be controlled below 100°C during the processing, preventing the active metal material from spontaneously igniting and catching fire, and improving safety. The pressure of the cold argon gas is 0.3Mpa to 0.6Mpa, and the flow rate of the cold argon gas is changed by adjusting the pressure. When the temperature of the processing position is too high and needs to be quickly cooled, the pressure of the cold argon gas can be increased by the control unit within the specified pressure range, and the flow rate of the cold argon gas can be increased. At the same time, the setting parameters of the temperature can be reduced, which can improve the cooling efficiency of the processing position.

[0045] In this embodiment, during the processing of the workpiece 10, since the workpiece 10 is squeezed and cracked, the generated chips will exert great pressure on the front of the tool 7, and the friction between the chips and the tool 7 will generate a large amount of cutting heat. The flow speed of the part of the chips that contacts the front of the tool 7 is relatively slowed down due to the influence of friction, forming a retention layer. Once the friction force is greater than the bonding force between the crystal lattices inside the material, some materials in the stagnant layer will adhere to the front of the tool 7 near the tip, forming a built-up edge.

[0046] When the machine tool system is in use, cold argon gas is sprayed on the processing position to isolate the air and reduce the temperature. At the same time, the airflow formed by the cold argon gas can also clean up the chips generated in front of the tool tip 7 during the cutting process, prevent the formation of built-up edge, and improve the quality of active metal material processing. At the same time, it can avoid the friction between the chips and the tool to generate a large amount of cutting heat, reducing the adverse conditions for the processing of active metal materials.

[0047] In this embodiment, Figure 2 As shown, when the cold argon gas acts on the processing position, the temperature detection unit 6 detects the temperature data of the processing position and transmits it to the control unit. If the temperature at the processing position is too high and the cold argon gas needs to be further adjusted, the control unit controls the cooling device through a pre-installed application to adjust the set parameters of the cold argon gas. The adjusted cold argon gas acts on the processing position again to form a cyclic control process.

[0048] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A machine tool system for processing active metal materials, characterized in that: include: Machining centers, used to machine workpieces using cutting tools; A temperature detection unit, used to detect the processing temperature; A cooling device, which sprays cold argon gas at a temperature of -10°C to -60°C and a pressure of 0.3Mpa to 0.6Mpa to the processing position, wherein the cold argon gas is used to cool the processing position; The control unit is used to receive the temperature parameters of the temperature detection unit and send a command of the injection argon gas parameters to the cooling device according to the temperature parameters.

2. The machine tool system for processing active metal materials according to claim 1, characterized in that: The cooling device comprises a cooling and pressurizing center and a nozzle. The cooling and pressurizing center is used to form cold argon gas, and the nozzle is used to spray it to a processing position.

3. The machine tool system for processing active metal materials according to claim 2, characterized in that: The cooling device also includes an argon storage tank and an insulation pipe. The argon storage tank is used to transport the argon to the cooling and pressurizing center to form cold argon, and the insulation pipe is used to transport the cold argon to the nozzle.

4. The machine tool system for processing active metal materials according to claim 3, characterized in that: One end of the heat preservation pipe is in sealed communication with the air outlet of the cooling and pressurizing center, and the nozzle is in sealed communication with the other end of the heat preservation pipe.

5. The machine tool system for processing active metal materials according to claim 4, characterized in that: The end of the insulation pipe where the nozzle is arranged is U-shaped, and the nozzle is aligned with the processing position.

6. The machine tool system for processing active metal materials according to claim 2, characterized in that: A telescopic device and a slide are installed on the machining center. The telescopic device is installed on the slide and is used to slide the telescopic device for translation. The telescopic device is driven by a servo motor.

7. The machine tool system for processing active metal materials according to claim 6, characterized in that: The servo motor is used by sending instructions through a control program.

8. The machine tool system for processing active metal materials according to claim 6, characterized in that: The nozzle is installed at the coaxial bottom of the telescopic device to adjust the position of the nozzle in the coaxial direction of the telescopic device.

9. The machine tool system for processing active metal materials according to claim 1, characterized in that: The temperature detection unit is an infrared temperature sensor, which is installed on the machining center, and the temperature sensitive element of the infrared temperature sensor is aligned with the machining position.

10. The machine tool system for processing active metal materials according to claim 1, characterized in that: The temperature detection unit and the control unit are connected via wireless data transmission.

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