Ultra-precision cutting micro-lubrication cooling system and method

Abstract

The application relates to an ultra-precision cutting micro-lubrication cooling system and method. The system comprises a thermal camera, a cutting fluid guide pipe and a cutting fluid nozzle. A vertical upward extending mounting seat is arranged on a tool seat. One end of the cutting fluid guide pipe is movably arranged with the mounting seat and connected with a supply system through a pipeline. The other end of the cutting fluid guide pipe is provided with the cutting fluid nozzle. One end of a first angle adjusting electric telescopic rod is movably connected with the mounting seat, and the other end of the first angle adjusting electric telescopic rod is movably connected with the cutting fluid guide pipe. One end of a second angle adjusting electric telescopic rod is movably connected with the tool seat, and the other end of the second angle adjusting electric telescopic rod is movably connected with the cutting fluid guide pipe. The mounting seat is provided with the thermal camera. The application can detect the temperature of different positions of a workpiece and a tool in real time through the thermal camera, adjust the spraying angle, flow rate and flow of the cutting fluid nozzle according to a high-temperature area, accurately spray the cutting fluid to the high-temperature area, control the cutting processing temperature, and reduce the use amount of the cutting fluid and the ultra-precision cutting processing cost.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of ultra-precision cutting machining equipment, in particular to an ultra-precision cutting micro-lubrication cooling system and method. BACKGROUND

[0002] In the process of ultra-precision cutting machining, in order to improve the surface finish of the workpiece, the contact position of the tool and the workpiece is continuously sprayed with cutting fluid to reduce the friction and temperature of the contact area of the tool and the workpiece, so as to avoid the surface defects such as pits, cracks and surface / subsurface damage of the machined workpiece caused by severe friction and high temperature, and reduce the wear of the tool.

[0003] For single crystal silicon material, generally, the machining area is heated to about 400 DEG C by laser for ultra-precision cutting machining, because the single crystal silicon material is a brittle material at room temperature, and it will change from brittle to plastic at about 400 DEG C, which can improve the cutting performance. However, due to the heating effect of the laser, the rigidity of the tool will be reduced, so it is necessary to continuously spray cutting fluid during machining to reduce cutting heat and tool wear. However, if too much cutting fluid is sprayed, the effect of laser heating single crystal silicon will be unsatisfactory, and if too little cutting fluid is sprayed, the effect of reducing cutting heat will not be obvious.

[0004] For single crystal germanium and other materials, generally, the material is removed by traditional ultra-precision cutting machining method, and in the process of machining, cutting fluid is usually sprayed to reduce the friction and temperature between the tool and the workpiece. The traditional cutting fluid spraying method is to continuously spray lubricating fluid to the cutting area through a fixed nozzle. Although this method can reduce the thermal damage in the cutting process to a certain extent, the large amount of cutting fluid used also causes many negative effects, not only causing air pollution, but also bringing potential harm to the ecological environment and human health.

[0005] Based on the above-mentioned problems that the amount of cutting fluid cannot be determined and controlled, in the process of laser heating assisted ultra-precision cutting, too much cutting fluid sprayed will cause the effect of laser heating to be unsatisfactory, and too little cutting fluid sprayed will not reduce the cutting heat, causing tool wear; in the process of traditional ultra-precision cutting machining, too much cutting fluid will cause environmental pollution, and too little cutting fluid will cause insufficient lubrication and local high temperature in the contact area of the tool and the workpiece, causing surface damage during machining. The present application provides an ultra-precision cutting micro-lubrication cooling system and method. SUMMARY

[0006] To solve or partially solve the problems in the related art, the present application provides an ultra-precision cutting micro-lubrication cooling system and method, which aims to reduce the use of cutting fluid in the process of ultra-precision cutting machining.

[0007] To this end, the application provides an ultra-precision cutting micro-lubrication cooling system, comprising a tool seat, a thermal camera, a cutting fluid guide pipe, a cutting fluid spray head, a first angle adjusting electric telescopic rod, a second angle adjusting electric telescopic rod, a display screen, a controller;

[0008] The tool seat is provided with a mounting seat extending vertically upward, one end of the cutting fluid guide pipe is movably mounted with the mounting seat through a ball joint and is connected with the supply system through a pipeline, and the other end is provided with the cutting fluid spray head;

[0009] One end of the first angle adjusting electric telescopic rod is movably connected with the middle part of the mounting seat through a ball joint, and the other end is movably connected with the cutting fluid guide pipe through a ball joint; one end of the second angle adjusting electric telescopic rod is movably connected with the bottom of the mounting seat through a ball joint, and the other end is movably connected with the cutting fluid guide pipe through a ball joint;

[0010] The mounting seat is provided with a thermal camera, and the rear side of the thermal camera is provided with a display screen;

[0011] The thermal camera is electrically connected with the signal input end of the controller, and the signal output end of the controller is electrically connected with the first angle adjusting electric telescopic rod, the second angle adjusting electric telescopic rod and the display screen respectively.

[0012] In some schemes, the supply system comprises a cutting fluid storage barrel, a pressure pump and an overflow valve connected in sequence; the liquid outlet of the overflow valve is connected with the flow control valve through a pipeline, and the overflow port of the overflow valve is connected with the cutting fluid storage barrel through a pipeline.

[0013] In some schemes, the supply system further comprises a high-pressure gas supply device;

[0014] The cutting fluid spray head comprises an air inlet pipe and an atomizing spray head; the atomizing spray head is arranged on the air inlet pipe and is connected with the flow control valve through a pipeline, and the air inlet pipe is connected with the high-pressure gas supply device through a pipeline.

[0015] In some schemes, a flow rate improving piece is arranged in the air inlet pipe, the flow rate improving piece is tubular, and the middle part is contracted and the two ends are expanded.

[0016] In some schemes, the flow rate improving piece comprises a support frame and an elastic rubber body; the support frame is sleeved on the outside of the elastic rubber body to maintain the basic shape of the elastic rubber body.

[0017] The support frame comprises an end skeleton, a connecting rod and a retaining piece.

[0018] The end frames are two and are arranged in parallel, and the two end frames are connected into one through connecting rods; one end of the retaining sheet is fixedly connected with the end frame, the other end extends obliquely inward, and the retaining sheets are arranged at intervals along the circumferential direction of the end frame.

[0019] In some schemes, the retaining sheet is made of elastic steel sheet,

[0020] The outer side of the middle part of the elastic rubber body is wound with a flow rate adjusting rope, one end of the flow rate adjusting rope is fixedly connected with the connecting rod, and the other end extends outward after penetrating through the pipe wall of the air inlet pipe;

[0021] The outer side wall of the air inlet pipe is provided with a flow rate adjusting telescopic rod, and the telescopic end of the flow rate adjusting telescopic rod is fixedly connected with the flow rate adjusting rope.

[0022] In some schemes, the air outlet end of the air inlet pipe is further provided with a jet area adjusting piece;

[0023] The jet area adjusting piece comprises a C-shaped end support ring, an extension support rod and an elastic rubber sleeve, the extension support rods are arranged at intervals in the circumferential direction on one side of the end support ring, the outer side of the extension support rod is sleeved with the elastic rubber sleeve, the tail end of the elastic rubber sleeve is wound with a jet port adjusting rope, one end of the jet port adjusting rope is fixedly connected with the inner side wall of the air inlet pipe, and the other end extends outward after penetrating through the side wall of the air inlet pipe.

[0024] In some schemes, the outer side wall of the air inlet pipe is provided with a jet port adjusting telescopic rod, and the telescopic end of the jet port adjusting telescopic rod is fixedly connected with the jet port adjusting rope.

[0025] In some schemes, the outer side of the air inlet pipe is provided with a sleeve, a jet cleaning cavity is arranged between the sleeve and the air inlet pipe, and the jet cleaning cavity is connected with a high-pressure gas supply device through a pipeline.

[0026] An ultra-precision cutting micro-lubrication cooling method based on any one of the above schemes, the ultra-precision cutting micro-lubrication cooling method is,

[0027] The thermal camera collects the temperature of the surface of the workpiece in real time, and when the detected temperature is not within the set temperature range, the controller controls the flow control valve to adjust the flow of the cutting fluid until the temperature of the surface of the workpiece is within the set temperature range.

[0028] The technical scheme provided in the application can have the following beneficial effects:

[0029] The application detects the temperature of different positions of the workpiece and the tool through a thermal imaging camera, adjusts the spray angle, flow rate and flow of the cutting fluid spray head according to the high-temperature area, so that the cutting fluid can be accurately sprayed to the high-temperature area, the temperature is within the set temperature range, and the use amount of the cutting fluid can be reduced, and the cost of ultra-precision cutting machining is effectively reduced.

[0030] It should be understood that the foregoing general description and the following detailed description are only exemplary and explanatory, and cannot limit the application. BRIEF DESCRIPTION OF DRAWINGS

[0031] The above and other objects, features and advantages of the present application will become more apparent from the following detailed description when taken in conjunction with the accompanying drawings in which like reference characters refer to like parts throughout the several views, and in which exemplary embodiments of the present application are shown.

[0032] Figure 1 is a structural schematic view of an ultra-precision cutting micro-lubrication cooling system shown in an embodiment of the present application;

[0033] Figure 2 is an oil circuit schematic view of a supply system of an ultra-precision cutting micro-lubrication cooling system shown in an embodiment of the present application;

[0034] Figure 3 is a structural schematic view of a cutting fluid spray head of an ultra-precision cutting micro-lubrication cooling system shown in an embodiment of the present application;

[0035] Figure 4 is another structural schematic view of a cutting fluid spray head of an ultra-precision cutting micro-lubrication cooling system shown in an embodiment of the present application;

[0036] Figure 5 is an assembly schematic view of a flow rate booster of an ultra-precision cutting micro-lubrication cooling system shown in an embodiment of the present application;

[0037] Figure 6 is a structural schematic view of a flow rate booster of an ultra-precision cutting micro-lubrication cooling system shown in an embodiment of the present application;

[0038] Figure 7 is an assembly schematic view of a spray area adjusting member of an ultra-precision cutting micro-lubrication cooling system shown in an embodiment of the present application;

[0039] Figure 8 is a structural schematic view of a spray area adjusting member of an ultra-precision cutting micro-lubrication cooling system shown in an embodiment of the present application;

[0040] Figure 9 is an assembly schematic view of a sleeve of an ultra-precision cutting micro-lubrication cooling system shown in an embodiment of the present application;

[0041] Figure 10 is a control block diagram of the ultra-precision cutting micro-lubrication cooling system shown in the embodiments of the present application;

[0042] Reference signs:

[0043] 1, tool seat; 2, thermal imaging camera; 3, cutting fluid guide pipe; 4, cutting fluid spray head; 401, air inlet pipe; 402, atomizing spray head; 403, flow rate booster; 404, support frame; 4041, end skeleton; 4042, connecting rod; 4043, retaining piece; 406, flow rate adjusting rope; 407, flow rate adjusting telescopic rod; 408, spray area adjusting piece; 4081, end support ring; 4082, extension support rod; 4083, elastic rubber sleeve; 409, nozzle adjusting rope; 410, nozzle adjusting telescopic rod; 411, sleeve; 412, blowing cleaning cavity; 405, elastic rubber body; 5, first angle adjusting electric telescopic rod; 6, second angle adjusting electric telescopic rod; 7, display screen; 8, controller; 9, mounting seat; 10, supply system; 1001, cutting fluid storage barrel; 1002, pressure pump; 1003, overflow valve; 1004, high-pressure air supply equipment; 11, flow control valve. DETAILED DESCRIPTION

[0044] Embodiments of the present application will be described in more detail by referring to the attached drawings. Although embodiments of the present application are shown in the drawings, it should be understood that the present application can be implemented in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided so that the present application will be thorough and complete, and will fully convey the scope of the present application to those skilled in the art.

[0045] It should be understood that although the terms "first", "second", "third", etc. are used to describe various information in the present application, these information should not be limited by these terms. These terms are only used to distinguish the same type of information from each other. For example, the first information can also be referred to as the second information, and similarly, the second information can also be referred to as the first information without departing from the scope of the present application. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "a plurality of" is two or more, unless otherwise specifically limited.

[0046] In the description of the present application, it should be understood that the terms "length", "width", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0047] Unless otherwise expressly specified and limited, the terms "mounting", "connecting", "connecting", "fixing" and the like should be understood broadly, for example, can be fixed connection, can also be detachable connection, or integral; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium, can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0048] In order to reduce the use amount of cutting fluid in the process of ultra-precision cutting, the present application provides an ultra-precision cutting micro-lubrication cooling system.

[0049] Please refer to Figure 1 and Figure 10 The ultra-precision cutting micro-lubrication cooling system provided by the present application comprises a tool holder 1, a thermal camera 2, a cutting fluid guide pipe 3, a cutting fluid spray head 4, a first angle adjusting electric telescopic rod 5, a second angle adjusting electric telescopic rod 6, a display screen 7, a controller 8 and a flow control valve 11.

[0050] The tool holder 1 is a part of a machining tool, and the tool holder 1 is provided with a mounting seat 9 extending vertically upward. The mounting seat 9 is mounted on the tool holder 1, and a ball head hole is formed in the mounting seat 9. One end of the cutting fluid guide pipe 3 is provided with a ball head matched with the ball head hole, and the ball head is embedded in the ball head hole to form a ball joint, thereby movably connecting one end of the cutting fluid guide pipe 3 with the mounting seat 9. At the same time, the end of the cutting fluid guide pipe 3 connected with the mounting seat 9 is also connected with a supply system 10 for providing cutting fluid through a pipeline, and the other end of the cutting fluid guide pipe 3 is provided with the cutting fluid spray head 4. The connecting pipeline of the cutting fluid guide pipe 3 and the supply system 10 is provided with the flow control valve 11.

[0051] During the process of ultra-precision cutting, the supply system 10 delivers cutting fluid to the cutting fluid guide pipe 3, and then sprays the machining position of the workpiece through the cutting fluid spray head 4, so as to achieve the effect of cooling and lubricating the machining surface of the workpiece, thereby reducing the damage to the surface of the workpiece and improving the service life of the tool.

[0052] One end of the first angle-adjustable electric telescopic rod 5 is movably connected to the middle of the mounting base 9 via a ball joint, and the other end is movably connected to the cutting fluid guide pipe 3 via a ball joint; one end of the second angle-adjustable electric telescopic rod 6 is movably connected to the bottom of the mounting base 9 via a ball joint, and the other end is movably connected to the cutting fluid guide pipe 3 via a ball joint; when neither telescopic rod is extended, the first angle-adjustable electric telescopic rod 5 is approximately located on a horizontal plane, and the second angle-adjustable electric telescopic rod 6 is approximately located on a vertical plane. Therefore, during use, by controlling the extension of the first angle-adjustable electric telescopic rod 5 and the second angle-adjustable electric telescopic rod 6, the end of the cutting fluid guide pipe 3 with the cutting fluid nozzle 4 can be moved up, down, left, and right, thereby adjusting the outlet angle of the cutting fluid nozzle 4, and thus adjusting the main cooling position of the cutting fluid, i.e., the center position of the cutting fluid spray.

[0053] The mounting base 9 is equipped with a thermal camera 2, which is used to detect the temperature of the workpiece and the cutting tool to obtain the temperature of different positions of the workpiece and the cutting tool. The rear side of the thermal camera 2 is equipped with a display screen 7. The thermal camera 2 is electrically connected to the signal input terminal of the controller 8, and the signal output terminal of the controller 8 is electrically connected to the first angle adjustment electric telescopic rod 5, the second angle adjustment electric telescopic rod 6, the display screen 7, and the flow control valve 11, respectively.

[0054] During ultra-precision machining, thermal imaging camera 2 detects the temperature at different locations on the workpiece and tool and transmits the data to controller 8. Based on the input information, controller 8 identifies the high-temperature areas and then controls the operation of the first angle adjusting electric telescopic rod 5 and the second angle adjusting electric telescopic rod 6 to adjust the outlet angle of the cutting fluid nozzle 4. This ensures that the center of the cutting fluid spray is directly aimed at the high-temperature area, requiring less cutting fluid to meet the cooling needs of the workpiece and tool, thus reducing the amount of cutting fluid used and consequently lowering the cost of ultra-precision machining. Simultaneously, controller 8 adjusts the cutting fluid spray pressure by controlling the opening of flow control valve 11 to ensure sufficient cutting fluid is sprayed onto the machining area, guaranteeing adequate cooling and lubrication at the machining location.

[0055] In this embodiment, as Figure 2 As shown, the supply system 10 includes a cutting fluid storage tank 1001, a pressurizing pump 1002, and an overflow valve 1003 connected in sequence. The outlet of the overflow valve 1003 is connected to the flow control valve 11 through a pipe, and the overflow port of the overflow valve 1003 is connected to the cutting fluid storage tank 1001 through a pipe. During use, the pressurizing pump 1002 provides a continuous supply of coolant, and the overflow valve 1003 provides a constant supply pressure to avoid the problem of pipe bursting due to excessive pressure.

[0056] Further, in the embodiment, the supply system 10 further comprises a high-pressure air supply device 1004, which can be an air compressor, a high-pressure air supply pump or the like.

[0057] As shown in Figure 3 , the cutting fluid spray head 4 comprises an air inlet pipe 401 and an atomizing spray head 402; the air inlet pipe 401 is provided with the atomizing spray head 402, the spray direction of the atomizing spray head 402 is directed to the inside of the air inlet pipe 401, the atomizing spray head 402 is connected with the flow control valve 11 through a pipeline, and the air inlet pipe 401 is connected with the high-pressure air supply device 1004 through a pipeline.

[0058] In operation, the high-pressure air supply device 1004 directs high-pressure air into the air inlet pipe 401, the cutting fluid is dispersed into mist by the atomizing spray head 402 and sprayed into the air inlet pipe 401, and then the mist cutting fluid is blown to the high-temperature area of the workpiece under the carrying of the high-pressure air, and the high-temperature area is cooled by the high-speed airflow and the cutting fluid at the same time, in this way, the use of cutting fluid is further reduced.

[0059] Further, in the embodiment, as shown in Figure 4 , the air inlet pipe 401 is provided with a flow rate booster 403, the flow rate booster 403 is tubular and has a structure of being contracted in the middle and expanded at both ends, when the mixture of high-speed flowing cutting fluid and high-pressure air passes through the flow rate booster 403, it is compressed at the middle position of the flow rate booster 403 and then expands outward, thereby greatly improving the flow rate of the mixture and effectively improving the cooling effect of the mixture, at the same time, the mist cutting fluid can be dispersed more finely after the compression and expansion process, effectively improving its cooling and lubricating effect.

[0060] Further, in the embodiment, as shown in Figure 5 and Figure 6 , the flow rate booster 403 comprises a support frame 404 and an elastic rubber body 405; the support frame 404 is sleeved on the outside of the elastic rubber body 405 to maintain the basic shape of the elastic rubber body 405, i.e. a structure of being contracted in the middle and expanded at both ends.

[0061] The support frame 404 comprises end skeletons 4041, connecting rods 4042 and retaining pieces 4043; the end skeletons 4041 are two in number and arranged in parallel with each other, and the two end skeletons 4041 are connected into one body through the connecting rods 4042; one end of the retaining piece 4043 is fixedly connected with the end skeleton 4041, the other end thereof extends obliquely inward, and the retaining pieces 4043 are arranged in the circumferential direction of the end skeleton 4041 at intervals.

[0062] Further, in the embodiment, the retaining piece 4043 is made of elastic steel sheet, has a tendency to bend inward, and the two ends of the elastic rubber body 405 are pulled tight, so that the middle part of the elastic rubber body 405 has a tendency to expand outward. The middle part of the outer side of the elastic rubber body 405 is wound with the flow rate adjusting rope 406, the flow rate adjusting rope 406 is wound around the elastic rubber body 405 at least one turn, one end of the flow rate adjusting rope 406 is fixedly connected with the connecting rod 4042, and the other end extends outward after passing through the wall of the air inlet pipe 401.

[0063] In use, the end of the flow rate adjusting rope 406 extending outward can be pulled to tighten the flow rate adjusting rope 406, thereby increasing the contraction amount of the middle part of the elastic rubber body 405, and further adjusting the flow rate of the mixture sprayed by the cutting fluid nozzle 4.

[0064] Further, in the embodiment, as shown in Figure 7 and Figure 8 , the outer side wall of the air inlet pipe 401 is provided with a flow rate adjusting telescopic rod 407, the flow rate adjusting telescopic rod 407 extends along the length direction of the air inlet pipe 401, the telescopic end of the flow rate adjusting telescopic rod 407 is fixedly connected with the flow rate adjusting rope 406, when the flow rate adjusting telescopic rod 407 is shortened, the flow rate adjusting rope 406 is pulled out more, the contraction amount of the middle part of the elastic rubber body 405 is increased, and vice versa, when the flow rate adjusting telescopic rod 407 is lengthened, the contraction amount of the middle part of the elastic rubber body 405 is decreased. The flow rate adjusting telescopic rod 407 can be electrically connected with the signal input end of the controller 8, and the flow rate adjusting telescopic rod 407 is controlled by the controller 8, so as to improve the control precision of the flow rate adjusting telescopic rod 407.

[0065] Further, in the embodiment, the air outlet end of the air inlet pipe 401 is also provided with a jet area adjusting piece 408; the jet area adjusting piece 408 comprises a C-shaped end support ring 4081, an extension support rod 4082, and an elastic rubber sleeve 4083, the inner side wall of the air inlet pipe 401 is configured with a groove matching the shape of the end support ring 4081, and the end support ring 4081 is embedded in the groove, so that the jet area adjusting piece 408 is fixedly connected with the air inlet pipe 401. The extension support rod 4082 is arranged at intervals around the circumferential direction of the side of the end support ring 4081 close to the air outlet end of the air inlet pipe 401, the outer side of the extension support rod 4082 is sleeved with the elastic rubber sleeve 4083, the end of the elastic rubber sleeve 4083 is wound with a nozzle adjusting rope 409, the nozzle adjusting rope 409 is wound around the end of the elastic rubber sleeve 4083 one turn, one end of the nozzle adjusting rope 409 is fixedly connected with the inner side wall of the air inlet pipe 401, and the other end extends outward after passing through the side wall of the air inlet pipe 401. When the nozzle adjusting rope 409 is pulled out outward, the nozzle adjusting rope 409 is tightened, the end of the elastic rubber sleeve 4083 is reduced, and the cross section of the jet air column is reduced.

[0066] During the working process, the size of the cross section of the jet flow column can be adjusted, so that the high-speed airflow and the cutting fluid can be concentrated and sprayed to the high-temperature area to achieve precise cooling, thereby effectively reducing the use of cutting fluid.

[0067] Further, in the present embodiment, the outer side wall of the air inlet pipe 401 is provided with a nozzle adjusting telescopic rod 410, the telescopic end of the nozzle adjusting telescopic rod 410 is fixedly connected with the nozzle adjusting rope 409, when the nozzle adjusting telescopic rod 410 is short, the nozzle adjusting rope 409 is pulled out more, the end of the elastic rubber sleeve 4083 is contracted, the cross section of the jet flow column is reduced, on the contrary, when the nozzle adjusting telescopic rod 410 is elongated, the end of the elastic rubber sleeve 4083 is rebounded and expanded under the action of the extension support rod 4082, the cross section of the jet flow column is increased. The nozzle adjusting telescopic rod 410 can be electrically connected with the signal input end of the controller 8, and the nozzle adjusting telescopic rod 410 is controlled by the controller 8, so as to improve the control precision of the nozzle adjusting telescopic rod 410.

[0068] In some embodiments, as shown in Figure 9 The outer side of the air inlet pipe 401 is provided with a sleeve 411, and the sleeve 411 and the air inlet pipe 401 are provided with a blowing cleaning cavity 412, the blowing cleaning cavity 412 is connected with the high-pressure gas supply device 1004 through a pipeline, and the left end of the blowing cleaning cavity 412 is closed and the right end is opened. During work, the high-pressure gas supply device 1004 guides high-pressure air into the blowing cleaning cavity 412, and then sprays from the right side, forming a high-speed airflow layer outside the spray of the air inlet pipe 401, which acts on 1, reduces the influence of external airflow on the jet column of the air inlet pipe 401, so that the jet column of the air inlet pipe 401 can be accurately sprayed to the specified area; 2, blow away the excess cutting fluid in the place where the workpiece has been processed, so as to avoid the influence of the excess cutting fluid on the processed area.

[0069] The application also provides an ultra-precision cutting micro-lubrication cooling method, based on any of the above embodiments, the ultra-precision cutting micro-lubrication cooling method is,

[0070] The thermal camera 2 collects the temperature of the machined workpiece surface in real time, and when the detected temperature is not within the set temperature range, the controller 8 controls the flow control valve 11 to adjust the cutting fluid flow size until the temperature of the machined workpiece surface is within the set temperature range.

[0071] Having described various embodiments of the application, it is to be understood that the above description is meant not to limit and not to encompass all of the possible embodiments. Many modifications and variations of this application can be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. It is intended that the scope of the application be defined by the scope of the patent and by the claims as allowed by the patent office, which can include adaptations based on the description, equivalents, and / or substitutions of elements individually or collectively to the entire disclosure.

Claims

1. An ultra-precision cutting micro-lubrication cooling system, characterized in that: The utility model relates to a cutting tool holder, including tool seat (1), thermal camera (2), cutting fluid guide pipe (3), cutting fluid spray head (4), first angle adjustment electric telescopic handle (5), second angle adjustment electric telescopic handle (6), display screen (7), controller (8), flow control valve (11); The tool seat (1) is provided with a vertically upward extending mounting seat (9), one end of the cutting fluid guide pipe (3) is movably mounted with the mounting seat (9) through a ball joint, and is connected with the supply system (10) through a pipeline, and the other end is provided with the cutting fluid spray head (4); the cutting fluid guide pipe (3) is provided with the flow control valve (11) on the connecting pipeline of the supply system (10); One end of the first angle adjustment electric telescopic handle (5) is movably connected with the middle part of the mounting seat (9) through a ball joint, and the other end is movably connected with the cutting fluid guide pipe (3) through a ball joint; one end of the second angle adjustment electric telescopic handle (6) is movably connected with the bottom of the mounting seat (9) through a ball joint, and the other end is movably connected with the cutting fluid guide pipe (3) through a ball joint; The mounting seat (9) is provided with a thermal camera (2), and the rear side of the thermal camera (2) is provided with a display screen (7); The flow control valve (11), the thermal camera (2) and the signal input end of the controller (8) are electrically connected, and the signal output end of the controller (8) is respectively electrically connected with the first angle adjustment electric telescopic handle (5), the second angle adjustment electric telescopic handle (6) and the display screen (7); The cutting fluid spray head (4) comprises an air inlet pipe (401); The air inlet pipe (401) is provided with a flow rate lifting piece (403) inside, the flow rate lifting piece (403) is tubular, and the middle part is contracted, and the two ends are expanded; The flow rate lifting piece (403) comprises a support frame (404) and an elastic rubber body (405); the support frame (404) is sleeved outside the elastic rubber body (405) to maintain the basic shape of the elastic rubber body (405); The support frame (404) comprises end skeletons (4041), connecting rods (4042) and retaining sheets (4043); The two end skeletons (4041) are arranged in parallel with each other and are connected into one body through the connecting rods (4042); one end of the retaining sheet (4043) is fixedly connected with the end skeleton (4041), and the other end extends obliquely inward, and the retaining sheets (4043) are arranged in the circumferential direction of the end skeleton (4041) at intervals; The retaining sheet (4043) is made of elastic steel sheet, a flow rate adjusting rope (406) is wound on the middle part of the outer side of the elastic rubber body (405), one end of the flow rate adjusting rope (406) is fixedly connected with the connecting rod (4042), and the other end extends outward after penetrating through the pipe wall of the air inlet pipe (401); The outer wall of the air inlet pipe (401) is provided with a flow rate adjusting telescopic rod (407), and the telescopic end of the flow rate adjusting telescopic rod (407) is fixedly connected with the flow rate adjusting rope (406); The air outlet end of the air inlet pipe (401) is further provided with a jet area adjusting member (408); The jet area adjusting member (408) comprises a C-shaped end support ring (4081), an extension support rod (4082) and an elastic rubber sleeve (4083), the extension support rod (4082) is arranged on one side of the end support ring (4081) in the circumferential direction, the outer side of the extension support rod (4082) is sleeved with the elastic rubber sleeve (4083), and the distal end of the elastic rubber sleeve (4083) is wound with a jet adjusting rope (409), one end of the jet adjusting rope (409) is fixedly connected with the inner wall of the air inlet pipe (401), and the other end extends outward after penetrating through the side wall of the air inlet pipe (401); The outer wall of the air inlet pipe (401) is provided with a jet area adjusting telescopic rod (410), and the telescopic end of the jet area adjusting telescopic rod (410) is fixedly connected with the jet adjusting rope (409).

2. The ultra-precision cutting micro-lubrication cooling system according to claim 1, wherein the supply system (10) comprises a cutting fluid storage barrel (1001), a pressure pump (1002) and an overflow valve (1003) connected in sequence; the overflow valve (1003) is connected with the flow control valve (11) through a pipeline, and the overflow port of the overflow valve (1003) is connected with the cutting fluid storage barrel (1001) through a pipeline.

3. The ultra-precision cutting micro-lubrication cooling system according to claim 2, wherein the supply system (10) further comprises a high-pressure gas supply device (1004).

4. The ultra-precision cutting micro-lubrication cooling system according to claim 1, wherein the outer side of the air inlet pipe (401) is provided with a sleeve (411), and a blowing cleaning cavity (412) is arranged between the sleeve (411) and the air inlet pipe (401), and the blowing cleaning cavity (412) is connected with the high-pressure gas supply device (1004) through a pipeline.

5. The ultra-precision cutting micro-lubrication cooling system according to any one of claims 1-4, wherein the ultra-precision cutting micro-lubrication cooling method comprises the following steps: The thermal imaging camera (2) collects the temperature of the surface of the workpiece in real time, and when the detected temperature is not within the set temperature range, the controller (8) controls the flow control valve (11) to adjust the flow of the cutting fluid until the temperature of the surface of the workpiece is within the set temperature range. ​ ​ 5. An ultra-precision cutting method with minimum quantity lubrication and cooling, characterized by: ​ ​

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