Tool turret cooling system of numerical control machine tool

Abstract

The utility model relates to the technical field of numerical control machine tools, in particular to a numerical control machine tool turret cooling system which comprises a turret, a jet cooling mechanism, a driving mechanism and a control host, a plurality of cutters are installed on the outer side of the turret in the length direction of the turret, the jet cooling mechanism comprises a nozzle and a rotating cylinder, and the driving mechanism comprises an air cylinder and a driving motor connected with the air cylinder. An output shaft of the driving motor is connected with the rotating cylinder. Through cooperation of the driving mechanism and the control host, the moving position of the jet cooling mechanism can be adjusted so as to cool a corresponding tool on the tool turret, and the position of a nozzle can be adjusted so that the nozzle can always align to the tool nose position or the blade position of any tool on the tool turret, accurate cooling can be conducted, and the cooling effect can be improved; and by arranging the control host, the automation level is improved, and meanwhile the cooling accuracy is further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of numerical control machine tools, in particular to a turret cooling system for numerical control machine tools. Background Art

[0002] In the field of CNC machine tool processing, turrets are particularly widely used in rough turning and fine turning of metal surfaces. Taking the wheel hub as an example, the wheel hub is in a semi-finished blank state when it comes out of the mold, and the fine machining is completed in the CNC machine tool. When finishing the wheel hub, it is necessary to cut the high-speed rotating wheel hub. During cutting, the wheel hub and the tool on the turret rub against each other to generate a large amount of heat. The high heat not only reduces the machining accuracy of the wheel hub but also greatly reduces the service life of the tool. Therefore, a cooling cutting fluid nozzle needs to be set next to each tool. When the turret is working, the cutting fluid is sprayed out at the same time. The flushing point of the cutting fluid should be close to the blade of the tool or even the tip of the tool, so as to take away the heat generated by the friction and deformation of the tool when cutting the workpiece, and achieve effective cooling; when using a CNC machine tool that changes tools through the machine tool turret, since the position of the tip or blade changes with different tools, it is impossible to ensure that the flushing point is maintained at the tip or blade position, the cooling effect is poor, and it is very easy to have defects such as rough, black, and sticky chips on the machined surface. Manual grinding and polishing are also required, which is labor-intensive and affects product quality and processing efficiency. Utility Model Content

[0003] The utility model aims to provide a turret cooling system for a numerically controlled machine tool to overcome the problems existing in the prior art equipment.

[0004] In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model is as follows: a turret cooling system for a CNC machine tool, comprising a turret, a jet cooling mechanism, a driving mechanism and a control host, the turret is connected to the rotating shaft of the machine tool, and a plurality of cutting tools are installed on the outer side of the turret along its length direction; the control host is provided with a lubricating oil adapter, a water adapter, an air adapter, an intake pipe solenoid valve, an exhaust pipe solenoid valve and a controller, the lubricating oil adapter, the water adapter and the air adapter are respectively provided with an oil pump solenoid valve, a water pump solenoid valve and an air pump solenoid valve, the lubricating oil adapter, the water adapter and the air adapter are respectively connected to the oil pump, the water pump and the air pump, and the intake pipe solenoid valve and the exhaust pipe solenoid valve are connected to the air pump;

[0005] The spray cooling mechanism includes a nozzle, a rotating cylinder and a sealed connecting pipe connected between the nozzle and the rotating cylinder, and the nozzle is connected to the inside of the rotating cylinder through the sealed connecting pipe; a lubricating oil interface, a water interface and a gas interface connected to the inside of the rotating cylinder are provided on the cylinder wall of the rotating cylinder, and the lubricating oil interface, the water interface and the gas interface are connected to the corresponding lubricating oil adapter, the water adapter and the gas adapter on the control host through the oil pipeline, the water pipeline and the gas pipeline respectively;

[0006] The driving mechanism includes a cylinder and a driving motor connected to the cylinder. A piston rod is provided at one end of the cylinder. The piston rod is connected to the driving motor. The output shaft of the driving motor is connected to the rotating cylinder. When the cylinder is working, the driving motor and the rotating cylinder are driven to move so that the nozzle is aligned with one of the tools outside the turret. When the driving motor is working, the rotating cylinder and the nozzle are driven to rotate so that the nozzle is aligned with the tip position or the blade position of the tool.

[0007] An intake pipe interface and an exhaust pipe interface for controlling the advancement and retraction of the cylinder are provided on the side wall of the cylinder. The intake pipe interface and the exhaust pipe interface are respectively connected to the intake pipe solenoid valve and the exhaust pipe solenoid valve through air pipes; the oil pump solenoid valve, water pump solenoid valve, air pump solenoid valve, intake pipe solenoid valve, exhaust pipe solenoid valve and drive motor are all electrically connected to the controller, and the controller is electrically connected to the machine tool control system through a signal line.

[0008] On the basis of the above technical solution, the present invention can also be improved as follows:

[0009] As a further improvement of the above technical solution, the driving motor drives the rotating drum and the nozzle to rotate in an angle range of 0-180 degrees.

[0010] As a further improvement of the above technical solution, the controller adopts a PLC controller.

[0011] As a further improvement of the above technical solution, the piston rod is connected and fixed to the support seat, and the drive motor is fixed to the support seat by screws.

[0012] As a further improvement of the above technical solution, an air outlet is provided at one end of the rotating cylinder, the air outlet is connected to the sealing connecting pipe, and the other end of the rotating cylinder is connected and fixed to the output shaft of the driving motor.

[0013] As a further improvement of the above technical solution, the cylinder adopts a double-rod multi-position cylinder, and the double-rod multi-position cylinder is provided with a magnetic switch, and the magnetic switch is electrically connected to the controller.

[0014] The beneficial effects of the utility model are as follows: the turret cooling system of the CNC machine tool provided by the utility model can adjust the position of the spray cooling mechanism through the cooperation of the driving mechanism and the control host, so as to cool the corresponding tool on the turret, and realize the adjustment of the nozzle position, so that it can always be aligned with the tip position or the blade position of any tool on the turret, and accurately cool and improve the cooling effect; by setting the control host, the automation level is improved, and the cooling accuracy is further improved. In addition, the traditional cooling cutting fluid is replaced with an oil-water-gas mixture, and a large amount of waste liquid will not be generated during the cooling process to reduce the harm to the environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0016] Figure 1 It is a structural schematic diagram of a turret cooling system for a CNC machine tool provided by a preferred embodiment of the utility model;

[0017] In the figure: 10, turret; 11, tool; 22, nozzle; 24, rotating cylinder; 241, lubricating oil interface; 242, water interface; 243, air interface; 26, sealing connecting pipe; 31, cylinder; 311, intake pipe interface; 312, exhaust pipe interface; 32, drive motor; 40, control host; 41, lubricating oil adapter; 411, oil pump solenoid valve; 42, water adapter; 421, water pump solenoid valve; 43, air adapter; 431, air pump solenoid valve; 44, intake pipe solenoid valve; 45, exhaust pipe solenoid valve; 46, controller; 51, oil pump; 52, water pump; 53, air pump. DETAILED DESCRIPTION

[0018] The present invention will now be described in further detail in conjunction with the accompanying drawings and embodiments. The accompanying drawings are simplified schematic diagrams that only illustrate the basic structure of the present invention in a schematic manner, and therefore only show the components related to the present invention.

[0019] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "multiple" means two or more.

[0020] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0021] like Figure 1As shown, a preferred embodiment of the utility model provides a turret cooling system for a CNC machine tool, comprising a turret 10, a spray cooling mechanism, a drive mechanism and a control host 40. The turret 10 is connected to the rotating shaft of the machine tool, and a plurality of tools 11 are installed on the outside of the turret 10 along its length direction.

[0022] The control host 40 is provided with a lubricating oil adapter 41, a water adapter 42, an air adapter 43, an intake pipe solenoid valve 44, an exhaust pipe solenoid valve 45 and a controller 46. The lubricating oil adapter 41, the water adapter 42 and the air adapter 43 are respectively provided with an oil pump solenoid valve 411, a water pump solenoid valve 421 and an air pump solenoid valve 431. The lubricating oil adapter 41, the water adapter 42 and the air adapter 43 are respectively connected to the oil pump 51, the water pump 52 and the air pump 53 by pipelines, and the intake pipe solenoid valve 44 and the exhaust pipe solenoid valve 45 are connected to the air pump 53 through pipelines.

[0023] The spray cooling mechanism includes a nozzle 22, a rotating cylinder 24, and a sealed connecting pipe 26 connected between the nozzle 22 and the rotating cylinder 24. An air outlet is provided at one end of the rotating cylinder 24, and the air outlet is connected to the sealed connecting pipe 26. The nozzle 22 is connected to the inside of the rotating cylinder 24 through the sealed connecting pipe 26. The wall of the rotating cylinder 24 is provided with a lubricating oil interface 241, a water interface 242, and a gas interface 243 connected to the inside of the rotating cylinder 24. The lubricating oil interface 241, the water interface 242, and the gas interface 243 are connected to the corresponding lubricating oil adapter 41, the water adapter 42, and the gas adapter 43 on the control host 40 through an oil pipeline, a water pipeline, and a gas pipeline, respectively.

[0024] The driving mechanism includes a cylinder 31 and a driving motor 32 connected to the cylinder 31. A piston rod is provided at one end of the cylinder 31, and the piston rod is connected and fixed to the support seat. The driving motor 32 is fixed to the support seat by screws, and the driving motor 32 is driven to move by the cylinder 31. The other end of the rotating cylinder 24 is connected and fixed to the output shaft of the driving motor 32. When the driving motor 32 is working, the rotating cylinder 24 and the nozzle 22 are driven to rotate by the driving motor 32. The angle range of the rotating cylinder 24 and the nozzle 22 driven by the driving motor 32 is 0-180 degrees. The position of the nozzle 22 is adjusted by rotating the nozzle 22, so that the nozzle 22 is aligned with the tip position or the blade position of the tool 11, and accurate cooling is performed to improve the cooling effect; when the cylinder 31 is working, the driving motor 32 is driven to move up and down, thereby driving the rotating cylinder 24 to move up and down, and cooperates with the driving motor 32 to drive the rotating cylinder 24 to rotate, so that the nozzle 22 is aligned with one of the tools 11 outside the turret 10.

[0025] The cylinder 31 can be a double-rod multi-position cylinder, which is provided with a magnetic switch, which is electrically connected to the controller 46, and the drive motor 32 is driven to move by the double-rod multi-position cylinder, which has the advantages of rapid movement and accurate positioning. The side wall of the cylinder 31 is provided with an intake pipe interface 311 and an exhaust pipe interface 312 for controlling the advancement and retraction of the cylinder 31, and the intake pipe interface 311 and the exhaust pipe interface 312 are respectively connected to the intake pipe solenoid valve 44 and the exhaust pipe solenoid valve 45 through the air pipe.

[0026] The oil pump solenoid valve 411, the water pump solenoid valve 421, the air pump solenoid valve 431, the intake pipe solenoid valve 44, the exhaust pipe solenoid valve 45 and the drive motor 32 are all electrically connected to the controller 46. The controller 46 can adopt a PLC controller to control the opening and closing of the oil pump solenoid valve 411, the water pump solenoid valve 421, the air pump solenoid valve 431, the intake pipe solenoid valve 44 and the exhaust pipe solenoid valve 45, and control the working state of the drive motor 32.

[0027] In order to improve the automation level and position control accuracy, the controller 46 is electrically connected to the machine tool control system through a signal line. The controller 46 can obtain the tool change information of the tool 11, the length and position of the corresponding tool 11 and other information, so as to determine the final position of the nozzle 22 when the injection cooling mechanism is used for cooling. The controller 46 can control the nozzle 22 to move to the cooling position by controlling the drive motor 32 and the cylinder 31. The cooling position can be selected as the tool tip or the blade according to the cooling needs.

[0028] Preferably, an infrared sensor is provided at the nozzle opening of the nozzle 22 , and the nozzle 22 sprays between the tool 11 and the workpiece. After each tool change, since each tool 11 has a different length, the infrared sensor located at the nozzle opening of the nozzle 22 will measure the length of the tool 11 .

[0029] When the utility model is used, the controller 46 controls the opening and closing of the air inlet solenoid valve 44 and the exhaust solenoid valve 45, so that the cylinder 31 drives the driving motor 32 to move up and down when working, and then drives the rotating cylinder 24 to move up and down, and cooperates with the driving motor 32 to drive the rotating cylinder 24 to rotate, so that the nozzle 22 is aligned with the tip or blade position of one of the tools 11 outside the turret 10. After the nozzle 22 is aligned with the designated position of the tool 11, while the tool 11 is working, the controller 46 simultaneously opens the oil pump solenoid valve 411, the water pump solenoid valve 421 and the air pump solenoid valve 431, and the oil, water and gas are simultaneously transported to the rotating cylinder 24, and the oil, water and gas are mixed and sprayed together to the tool 11 to lubricate and cool the tool 11. The oil, water and gas mixture is mainly gas, with only a small amount of water and a small amount of oil. During the cooling process, a large amount of waste liquid will not be generated to cause harm to the environment.

[0030] The turret cooling system for CNC machine tools provided by the utility model can adjust the position of the spray cooling mechanism through the cooperation of the driving mechanism and the control host 40, so as to cool the corresponding tool 11 on the turret 10, and realize the adjustment of the position of the nozzle 22, so that it can always be aligned with the tip position or the blade position of any tool 11 on the turret 10, and accurately cool and improve the cooling effect; by setting the control host 40, the automation level is improved, and the cooling accuracy is further improved. In addition, the traditional cooling cutting fluid is replaced with an oil-water-gas mixture, and a large amount of waste liquid will not be generated during the cooling process to reduce the harm to the environment.

[0031] Any details not mentioned in the above specific embodiments of the present invention belong to the known technologies in the art and can be implemented with reference to the known technologies.

[0032] The above is based on the ideal embodiment of the utility model. Through the above description, relevant personnel can make various changes and modifications without deviating from the technical concept of the utility model. The technical scope of this utility model is not limited to the content in the specification, and the technical scope must be determined according to the scope of the claims.

Claims

1. A turret cooling system for a CNC machine tool, characterized in that: It includes a turret, a jet cooling mechanism, a driving mechanism and a control host. The turret is connected to the rotating shaft of the machine tool. A plurality of cutting tools are installed on the outside of the turret along its length direction. The control host is provided with a lubricating oil adapter, a water adapter, an air adapter, an intake pipe solenoid valve, an exhaust pipe solenoid valve and a controller. The lubricating oil adapter, the water adapter and the air adapter are respectively provided with an oil pump solenoid valve, a water pump solenoid valve and an air pump solenoid valve. The lubricating oil adapter, the water adapter and the air adapter are respectively connected to the oil pump, the water pump and the air pump. The intake pipe solenoid valve and the exhaust pipe solenoid valve are connected to the air pump. The spray cooling mechanism includes a nozzle, a rotating cylinder and a sealed connecting pipe connected between the nozzle and the rotating cylinder, and the nozzle is connected to the inside of the rotating cylinder through the sealed connecting pipe; a lubricating oil interface, a water interface and a gas interface connected to the inside of the rotating cylinder are provided on the cylinder wall of the rotating cylinder, and the lubricating oil interface, the water interface and the gas interface are connected to the corresponding lubricating oil adapter, the water adapter and the gas adapter on the control host through the oil pipeline, the water pipeline and the gas pipeline respectively; The driving mechanism includes a cylinder and a driving motor connected to the cylinder. A piston rod is provided at one end of the cylinder. The piston rod is connected to the driving motor. The output shaft of the driving motor is connected to the rotating cylinder. When the cylinder is working, the driving motor and the rotating cylinder are driven to move so that the nozzle is aligned with one of the tools outside the turret. When the driving motor is working, the rotating cylinder and the nozzle are driven to rotate so that the nozzle is aligned with the tip position or the blade position of the tool. An intake pipe interface and an exhaust pipe interface for controlling the advancement and retraction of the cylinder are provided on the side wall of the cylinder. The intake pipe interface and the exhaust pipe interface are respectively connected to the intake pipe solenoid valve and the exhaust pipe solenoid valve through air pipes; the oil pump solenoid valve, water pump solenoid valve, air pump solenoid valve, intake pipe solenoid valve, exhaust pipe solenoid valve and drive motor are all electrically connected to the controller, and the controller is electrically connected to the machine tool control system through a signal line.

2. The turret cooling system for a CNC machine tool according to claim 1, characterized in that: The driving motor drives the rotating drum and the nozzle to rotate in an angle range of 0-180 degrees.

3. The turret cooling system for a CNC machine tool according to claim 1, characterized in that: The controller adopts a PLC controller.

4. The turret cooling system for a CNC machine tool according to claim 1, characterized in that: The piston rod is connected and fixed to the support seat, and the drive motor is fixed to the support seat by screws.

5. The turret cooling system for a CNC machine tool according to claim 1, characterized in that: An air outlet is provided at one end of the rotating cylinder, and the air outlet is connected to the sealing connecting pipe. The other end of the rotating cylinder is connected and fixed to the output shaft of the driving motor.

6. The turret cooling system for a CNC machine tool according to claim 1, characterized in that: The cylinder adopts a double-rod multi-position cylinder, and the double-rod multi-position cylinder is provided with a magnetic switch, and the magnetic switch is electrically connected to the controller.

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