阅读说明：本技术 一种砂轮冷却装置及其刀具冷却系统和冷却控制方法 (Grinding wheel cooling device, cutter cooling system and cooling control method thereof ) 是由 吴行飞 吕桂芳 邓崛华 唐笙富 宋援朝 曹光有 许宇亮 吴道涵 于 2021-08-11 设计创作，主要内容包括：本发明公开一种砂轮冷却装置及其刀具冷却系统和冷却控制方法,砂轮冷却装置包括吹气喷嘴以及砂轮冷却喷嘴,所述吹气喷嘴和所述砂轮冷却喷嘴按照砂轮的回转方向顺次设置在砂轮的周向,且所述吹气喷嘴和所述砂轮冷却喷嘴位于磨削加工区域的同一侧,所述砂轮冷却喷嘴顺着砂轮回转方向朝向磨削加工区域,所述吹气喷嘴的朝向沿砂轮回转方向的逆向设置；本发明利用吹气喷嘴吹出的气体能够形成致密的气流,相对于液流切断高压旋转气流的方式来说更能够有效的发挥作用,并且,在采用同等规格的液流供给泵的前提下,更能够保证冷却液的供给,降低高压旋转气流对于冷却液进入磨削加工区域的影响,解决了冷却液压力不足,流量不够的技术问题。(The invention discloses a grinding wheel cooling device, a cutter cooling system and a cooling control method thereof, wherein the grinding wheel cooling device comprises a blowing nozzle and a grinding wheel cooling nozzle, the blowing nozzle and the grinding wheel cooling nozzle are sequentially arranged in the circumferential direction of a grinding wheel according to the rotation direction of the grinding wheel, the blowing nozzle and the grinding wheel cooling nozzle are positioned on the same side of a grinding processing area, the grinding wheel cooling nozzle faces the grinding processing area along the rotation direction of the grinding wheel, and the blowing nozzle faces in the reverse direction of the rotation direction of the grinding wheel; the invention can form compact airflow by utilizing the gas blown out by the blowing nozzle, can effectively play a role compared with a mode of cutting off high-pressure rotating airflow by liquid flow, and can ensure the supply of cooling liquid on the premise of adopting liquid flow supply pumps with the same specification, reduce the influence of the high-pressure rotating airflow on the cooling liquid entering a grinding area, and solve the technical problems of insufficient cooling liquid pressure and insufficient flow.)

1. A grinding wheel cooling device is characterized in that: the automatic grinding device comprises a blowing nozzle and a grinding wheel cooling nozzle, wherein the blowing nozzle and the grinding wheel cooling nozzle are sequentially arranged in the circumferential direction of a grinding wheel according to the rotation direction of the grinding wheel, the blowing nozzle and the grinding wheel cooling nozzle are positioned on the same side of a grinding area, the grinding wheel cooling nozzle faces the grinding area along the rotation direction of the grinding wheel, and the blowing nozzle is arranged in the reverse direction of the rotation direction of the grinding wheel.

2. The wheel cooling device according to claim 1, characterized in that: the grinding wheel cooling nozzle faces to the tangential direction of the grinding wheel, and the blowing nozzle faces to the tangential direction of the grinding wheel.

3. The grinding wheel cooling device according to claim 1 or 2, characterized in that: the air blowing nozzle and the grinding wheel cooling nozzle are arranged on a nozzle positioning device, the nozzle positioning device comprises two lead screw assemblies with mutually vertical moving directions, and the grinding wheel cooling nozzle and the air blowing nozzle are fixedly arranged on one of the lead screw assemblies.

4. A tool cooling system, characterized by: the grinding wheel cooling device, the tool detection device, the nozzle positioning device and the drill bit cooling nozzle according to any one of claims 1 to 3, wherein the tool detection device is used for detecting and judging the type of the tool to select and activate the grinding wheel cooling device or the drill bit cooling nozzle, the nozzle positioning device is used for moving and positioning the grinding wheel cooling nozzle and the air blowing nozzle to a cooling position, and the drill bit cooling nozzle faces to the direction of a tool nose of a drill bit or a milling cutter.

5. The tool cooling system of claim 4, wherein: the drill bit cooling nozzles are symmetrically arranged on two sides of the cutter tip, and the direction of each drill bit cooling nozzle can be adjusted.

6. A cooling control method, characterized by comprising the steps of:

detecting the type of the cutter by using a cutter detection device, and judging whether the cutter is a drill bit or a milling cutter or a grinding wheel;

when the drill bit or the milling cutter is judged, the drill bit cooling nozzle is opened and sprays water to cool towards the tool nose direction of the drill bit or the milling cutter;

and when the grinding wheel is judged to be the grinding wheel, positioning a grinding wheel cooling nozzle and a blowing nozzle to a cooling position through a nozzle positioning device, spraying water to the grinding wheel cooling nozzle along the rotation direction of the grinding wheel towards the grinding processing area, and blowing air to the blowing nozzle in the reverse direction of the rotation direction of the grinding wheel.

7. The cooling control method according to claim 6, characterized in that: and when the grinding wheel is judged to be the grinding wheel, the grinding wheel cooling nozzle sprays water along the tangent line of the grinding wheel, and the air blowing nozzle blows air along the tangent line of the grinding wheel.

8. The cooling control method according to claim 6, characterized in that: and when the drill bit or the milling cutter is judged, the drill bit cooling nozzles symmetrically arranged on two sides of the cutter point are used for spraying water for cooling.

9. The cooling control method according to claim 7 or 8, characterized in that: the moving direction of the nozzle positioning device is perpendicular to the main shaft direction of the cutter.

10. The cooling control method according to claim 9, characterized in that: the cutter detection device detects the diameter of the cutter through laser induction measurement and judges whether the cutter is a grinding wheel or a milling cutter or a drill bit.

Technical Field

The invention relates to the technical field of cooling of a powerful grinding center, in particular to a grinding wheel cooling device, a cutter cooling system and a cooling control method thereof.

Background

The powerful grinding center can realize the processes of drilling, milling, powerful forming and grinding and the like by one-time clamping, and is a multi-process professional machine tool integrating drilling, milling and grinding. However, the conventional powerful grinding center still adopts a common water spray cooling device, and cannot realize more efficient cooling.

The traditional automatic following device for the cooling nozzle mostly drives an upper screw rod and a lower screw rod to move up and down through a single servo motor through two belt pulleys for cooling, the structure can only drive the movement in one direction, only can cool a cutter in one size, and a proper cooling mode cannot be selected according to different cutters. Meanwhile, the pressure of the cooling liquid is not enough by adopting one cooling pipe, the traditional low pressure is still adopted, and the spraying direction is not proper. Therefore, such a jet cooling device only slightly increases the amount of cooling fluid in the grinding area and is only suitable for conventional grinding cooling. The method is not suitable for integrated cutting and cooling of large cutting depth, long profile perimeter, high-alloy metal removal rate, high-strength high-precision grinding and drilling and milling.

In the prior art, in order to improve the cooling effect, a plurality of cooling nozzles are additionally arranged, the direction of cooling liquid sprayed by the nozzles is along the tangential direction of the grinding wheel, and is along the radial direction, but the pressure of the nozzles is only one, and the nozzles are traditional low-pressure pumps. Although there are a plurality of spray directions, this method merely increases the amount of the cutting fluid and does not improve the cooling effect, and is not suitable for cooling the power forming grinding center.

In addition, the conventional cooling nozzle system adopts a common nozzle, only uses large flow to replace medium and low pressure flow, and enhances and removes the cutting fluid in the grinding processing area by improving the flow and pressure of the cooling fluid, and the mode has the following defects: in the field of high-power forming grinding technology, because the grinding wheel rotates at a high speed, a high-pressure rotating airflow distributed along the circumference of the grinding wheel is formed on the periphery of the grinding wheel, most of cooling liquid is blown away by the high-pressure rotating airflow, and only a small amount of cooling liquid enters a grinding processing area. Therefore, during the strong forming grinding process, the cutting heat in the grinding processing area can not be effectively discharged, so that the workpiece and the abrasive are burned, and the efficiency and the quality of the strong forming grinding are affected, which is also a difficult problem of the neck clamp in the grinding technology field. Chinese patent No. CN 205237831U discloses a coolant spraying device suitable for a power forming grinder, which comprises a high-pressure coolant spraying pipe and a medium-pressure coolant nozzle, wherein the axial direction of the high-pressure coolant spraying pipe is parallel to the axial direction of a grinding wheel, the pipe wall of the high-pressure coolant spraying pipe is provided with a plurality of spraying holes facing the circumferential surface of the grinding wheel, the spraying direction of the medium-pressure coolant nozzle is aligned with the tangent line of a grinding area, the proposal cuts off the high-pressure air flow by the way that the spraying direction of the high-pressure cooling liquid sprayed out by the spraying holes of the high-pressure cooling liquid spraying pipe is vertical to the high-pressure air flow formed on the circumferential surface of the grinding wheel, this solution, to a certain extent, increases the amount of coolant entering the grinding area, but has a limited effect of blocking the air flow with the liquid flow, moreover, the high pressure cooling injection tube may consume a portion of the flow of the intermediate pressure coolant, possibly resulting in an insufficient supply of the intermediate pressure coolant.

Disclosure of Invention

The invention aims to provide a grinding wheel cooling device, a cutter cooling system and a cooling control method thereof, aiming at solving the problems in the prior art, wherein a blowing nozzle and a grinding wheel cooling nozzle are sequentially arranged on a nozzle positioning device according to the rotation direction of a grinding wheel, and the blowing nozzle can be used for effectively cutting off high-pressure rotating air flow of the grinding wheel, so that the influence of the high-pressure rotating air flow on the cooling liquid entering a grinding area is reduced on the basis of not reducing the supply amount of the cooling liquid.

In order to achieve the purpose, the invention provides the following scheme:

the invention provides a grinding wheel cooling device which comprises an air blowing nozzle and a grinding wheel cooling nozzle, wherein the air blowing nozzle and the grinding wheel cooling nozzle are sequentially arranged in the circumferential direction of a grinding wheel according to the rotation direction of the grinding wheel, the air blowing nozzle and the grinding wheel cooling nozzle are positioned on the same side of a grinding area, the grinding wheel cooling nozzle faces the grinding area along the rotation direction of the grinding wheel, and the air blowing nozzle faces in the reverse direction of the rotation direction of the grinding wheel.

Preferably, the grinding wheel cooling nozzle faces the tangential direction of the grinding wheel, and the air blowing nozzle faces the tangential direction of the grinding wheel.

Preferably, the air blowing nozzle and the grinding wheel cooling nozzle are mounted on a nozzle positioning device, the nozzle positioning device comprises two screw rod assemblies with mutually perpendicular moving directions, and the grinding wheel cooling nozzle and the air blowing nozzle are fixedly mounted on one of the screw rod assemblies.

The invention provides a cutter cooling system, which comprises the grinding wheel cooling device, a cutter detection device, a nozzle positioning device and a drill bit cooling nozzle, wherein the grinding wheel cooling device, the cutter detection device, the nozzle positioning device and the drill bit cooling nozzle are described in the specification, the cutter detection device is used for detecting and judging the type of a cutter to select and start the grinding wheel cooling device or the drill bit cooling nozzle, the nozzle positioning device is used for moving and positioning the grinding wheel cooling nozzle and the air blowing nozzle to a cooling position, and the drill bit cooling nozzle faces to the direction of a tool nose of a drill bit or a milling cutter.

Preferably, the drill bit cooling nozzles are symmetrically arranged on two sides of the tool nose, and the direction of each drill bit cooling nozzle can be adjusted.

The invention also provides a cooling control method, which comprises the following steps:

detecting the type of the cutter by using a cutter detection device, and judging whether the cutter is a drill bit or a milling cutter or a grinding wheel;

when the drill bit or the milling cutter is judged, the drill bit cooling nozzle is opened and sprays water to cool towards the tool nose direction of the drill bit or the milling cutter;

and when the grinding wheel is judged to be the grinding wheel, positioning a grinding wheel cooling nozzle and a blowing nozzle to a cooling position through a nozzle positioning device, spraying water to the grinding wheel cooling nozzle along the rotation direction of the grinding wheel towards the grinding processing area, and blowing air to the blowing nozzle in the reverse direction of the rotation direction of the grinding wheel.

Preferably, when the grinding wheel is judged to be the grinding wheel, the grinding wheel cooling nozzle sprays water along the tangent line of the grinding wheel, and the air blowing nozzle blows air along the tangent line of the grinding wheel.

Preferably, when the drill or the milling cutter is judged, the drill cooling nozzles symmetrically arranged on both sides of the cutter point are used for water spray cooling.

Preferably, the direction of movement of the nozzle positioning device is perpendicular to the direction of the main axis of the tool.

Preferably, the tool detection device detects the diameter of the tool through laser induction measurement, and judges whether the tool is a grinding wheel or a milling cutter or a drill.

Compared with the prior art, the invention has the following technical effects:

(1) the invention is provided with the air blowing nozzle and the grinding wheel cooling nozzle in sequence according to the rotation direction of the grinding wheel, the air blown by the air blowing nozzle can form compact air flow, and compared with the mode of cutting off the high-pressure rotating air flow of the grinding wheel by adopting liquid flow in the prior art, the invention can more effectively play a role and better cut off the high-pressure rotating air flow of the grinding wheel, moreover, after the mode of replacing liquid flow by air flow is adopted, the redundant cooling liquid is not required to be consumed except the cooling liquid required by normal cooling, on the premise of adopting liquid flow supply pumps with the same specification, the cooling liquid can be supplied more assuredly, so that the invention can reduce the influence of high-pressure rotating airflow on the cooling liquid entering a grinding area on the basis of not reducing the supply quantity of the cooling liquid, and solves the technical problems of insufficient cooling liquid pressure and insufficient flow;

(2) when the cooling device cools the grinding wheel, the water spraying direction of the grinding wheel cooling nozzle is along the tangent line of the grinding wheel and faces a grinding processing area along the rotation direction of the grinding wheel, the air blowing direction of the air blowing nozzle is also along the tangent line of the grinding wheel, but the air blowing direction is opposite to the rotation direction of the grinding wheel, when the air blowing nozzle is used for cutting off high-pressure rotating air flow of the grinding wheel, the air blowing nozzle cannot blow the jet flow of the grinding wheel cooling nozzle to influence the water spraying direction, and cooling liquid can be sprayed to the core position of the grinding processing area in a concentrated mode, so that the cooling effect of the grinding wheel in the grinding process of the grinding wheel is effectively improved;

(3) according to the invention, by arranging the cutter detection device and the nozzle positioning device, the cutter can be freely and flexibly moved and positioned along the processing plane according to the geometric sizes and the cutter point positions (or tangential directions) of different processing cutters, so that different cutters can be cooled by strong force, the current situation that only a single direction and a single cutter can be cooled is changed, and the problem that different cutter sizes can be cooled by the same distance is solved;

(4) when the drill cooling nozzle is used for cooling the drill or the milling cutter by water spraying, the water spraying cooling is symmetrically carried out on two sides of the cutter point, so that the jet flow quantity can be increased relative to the unidirectional water spraying cooling, and the cooling effect on the drill or the milling cutter can be further improved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of the mounting structure of the cooling nozzle of the drill bit of the present invention;

wherein, 1, a cutter; 2. a drill bit cooling nozzle; 3. a grinding wheel cooling nozzle; 4. a blowing nozzle; 5. a nozzle positioning device; 51. a first lead screw assembly; 52. a second lead screw assembly.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The invention aims to provide a grinding wheel cooling device, a cutter cooling system and a cooling control method thereof, aiming at solving the problems in the prior art.

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.

As shown in fig. 1, the invention provides a grinding wheel cooling device, which comprises a blowing nozzle 4 and a grinding wheel cooling nozzle 3, wherein the blowing nozzle 4 is connected with an air source through a pipeline, the air source can be an air storage tank or an air compressor, compressed air is adopted, the flow of the blowing air can be provided with a manual speed regulation function, and manual fine adjustment can be carried out according to the actual use condition; the grinding wheel cooling nozzle 3 is connected with a cooling liquid source through a pipeline, power transmission can be carried out through the pump body, power parameters and the like of the pump body can be reasonably set according to the existing cooling mode, and the generated jet flow speed and pressure are adjusted according to the cooling effect. It should be noted that the parameters such as the air flow of the air blowing nozzle 4 and the jet flow of the grinding wheel cooling nozzle 3 may be adjusted according to actual conditions by using the existing parameters, and are not the improvement direction of the present invention. The air blowing nozzle 4 and the sand wheel cooling nozzle 3 are sequentially arranged in the circumferential direction of the grinding wheel according to the rotation direction of the grinding wheel, and the air blowing nozzle 4 and the sand wheel cooling nozzle 3 are positioned on the same side of the grinding area, namely, any point of the grinding wheel during rotation reaches the sand wheel cooling nozzle 3 after passing through the air blowing nozzle 4, so that air flow is blocked in front and cooling liquid is sprayed in back. The grinding wheel cooling nozzle 3 faces the grinding area along the rotation direction of the grinding wheel, so that jet flow sprayed out of the grinding wheel cooling nozzle 3 can be sprayed to the grinding area to spray water for cooling the grinding area. Meanwhile, the direction of the air blowing nozzle 4 is arranged in the reverse direction of the rotation direction of the grinding wheel, the reverse arrangement can be air blowing towards the direction of the grinding wheel or air blowing along the tangential direction of the grinding wheel, in short, the air blowing direction of the air blowing nozzle 4 is approximately or exactly opposite to the direction of the high-pressure rotating air flow generated by the grinding wheel, and the high-pressure rotating air flow can be blocked or cut off to continuously reach a grinding processing area along the rotation direction of the grinding wheel. Therefore, the invention is provided with the blowing nozzle 4 and the grinding wheel cooling nozzle 3 in sequence according to the rotation direction of the grinding wheel, the gas blown by the blowing nozzle 4 can form compact airflow, the high-pressure rotating airflow of the grinding wheel can be cut off more effectively compared with liquid flow, and the cooling liquid does not need to be consumed, and the supply of the cooling liquid can be ensured on the premise of adopting liquid flow supply pumps with the same specification.

Further, the grinding wheel cooling nozzle 3 may be disposed to face a tangential direction of the grinding wheel, and the air blowing nozzle 4 may be disposed to face a tangential direction of the grinding wheel, it being noted that the former is along a rotation direction of the grinding wheel and the latter is against the rotation direction of the grinding wheel. The two tangential directions are located at the core positions, one is a cooling core position, and the other is a core position for cutting off high-pressure rotating airflow. At this time, when the high-pressure rotating air flow of the grinding wheel is cut off by the air blowing nozzle 4, the cooling liquid can be intensively sprayed to the core position of the grinding processing area without blowing the cooling liquid to the jet flow of the grinding wheel cooling nozzle 3 to influence the water spraying direction, so that the cooling effect of the grinding wheel in the grinding process of the grinding wheel is effectively improved.

The blowing nozzle 4 and the grinding wheel cooling nozzle 3 can be simultaneously installed on the nozzle positioning device 5, and the blowing nozzle 4 and the grinding wheel cooling nozzle 3 have certain included angles, and the positions of the nozzle positioning device 5 relative to the grinding wheel are adjusted, so that the grinding wheel diameters of different sizes can be simultaneously tangent to the blowing nozzle 4 and the grinding wheel cooling nozzle 3, and the best cooling effect is achieved. Specifically, the nozzle positioning device 5 may include two screw assemblies, i.e., a first screw assembly 51 and a second screw assembly 52, whose moving directions are perpendicular to each other, each screw assembly may be provided with an independent driving motor, and the driving motors may be controlled by the control signal to respectively drive the first screw assembly 51 and the second screw assembly 52 to move in two perpendicular axial directions. The grinding wheel cooling nozzle 3 and the air blowing nozzle 4 are fixedly mounted on the first lead screw assembly 51 or on the second lead screw assembly 52. The grinding wheel cooling nozzles 3 and the blowing nozzles 4 can thus be moved in a plane, which should be taken to be perpendicular to the main axis direction of the grinding wheel, and finally the grinding wheel cooling nozzles 3 and the blowing nozzles 4 can be oriented in the tangential direction of the grinding wheel.

Referring again to fig. 1, the present invention provides a tool cooling system, which includes the grinding wheel cooling device described above, and further includes a tool detection device (not shown), a nozzle positioning device 5, and a drill cooling nozzle 2. The drill bit cooling nozzle 2 is connected with a cooling liquid source through a pipeline, and can share the cooling liquid source with the grinding wheel cooling nozzle 3 so as to reduce the investment of equipment; the drill cooling nozzle 2 may be used not only for water-jet cooling of the drill but also for water-jet cooling of a tool 1 having a small diameter such as a milling cutter. The grinding wheel cooling nozzle 3 and the blowing nozzle 4 in the grinding wheel cooling device are arranged on the nozzle positioning device 5, and move and position by the nozzle positioning device 5, and the requirement of automatic control is met. The cutter detection device is used for detecting and judging the type of the cutter 1, the detection result is transmitted to the control system, the control system judges whether the grinding wheel is a grinding wheel or a drill bit or a milling cutter according to the detection result, if the grinding wheel is the grinding wheel, the grinding wheel cooling device is selected to be started according to the judgment result, the nozzle positioning device 5 in the grinding wheel cooling device carries out corresponding action again, and the grinding wheel cooling nozzle 3 and the air blowing nozzle 4 are moved and positioned to cooling positions (the cooling positions of the grinding wheels with different diameters are set in advance, and the nozzle positioning device 5 only needs to operate according to a preset program). If the drill bit or the milling cutter is adopted, the drill bit cooling nozzle 2 is selected to be started, and the drill bit cooling nozzle 2 can not be arranged on the nozzle positioning device 5, because the water spraying direction of the drill bit cooling nozzle 2 faces to the tool tip position of the cutter 1, the influence of the diameter of the cutter 1 is avoided, and the water spraying direction does not need to face to the tangential direction. According to the invention, by arranging the cutter detection device and the nozzle positioning device 5, the cutter can be freely and flexibly moved and positioned along the processing plane according to the geometric sizes and the cutter point positions (or tangential directions) of different cutters 1, so that the powerful cooling can be performed on different cutters 1, the current situation that only a single direction and a single cutter 1 can be cooled is changed, and the problem that the cutters 1 with different sizes can be cooled only at the same distance is solved.

As shown in fig. 2, the drill cooling nozzles 2 may be provided in plural numbers, and may be arranged in groups, for example, three drill cooling nozzles 2 may be provided on the same fixture, and may be symmetrically arranged on both sides of the cutting tip, and each drill cooling nozzle 2 may be capable of adjusting the direction. The nozzle direction of the drill bit cooling nozzle 2 can be manually adjusted, for example, the front end of the drill bit cooling nozzle 2 is hinged on a fixing device by adopting a spherical structure and can be adjusted by twisting towards any direction. Before machining, the orientation of the drill cooling nozzle 2 is adjusted according to the selected cutter 1 in the current machining, and during machining, the drill cooling nozzle 2 is controlled to be opened and closed only according to the detection result of the cutter detection device. Of course, the drill cooling nozzle 2 may also be set to be automatically adjusted, for example, the direction of the drill cooling nozzle 2 may be adjusted according to the position of the tool nose, and the specific adjustment manners are all the prior art and will not be described herein again.

With reference to fig. 1, the present invention further provides a cooling control method, in which the tool cooling system applied in the method can adopt the tool cooling system described above, including the following steps:

when machining is carried out, different cutters 1 can be adopted in each machining process, after the machining cutters 1 are replaced, the types of the cutters 1 are detected by utilizing a cutter detection device, whether the cutters are drill bits or milling cutters or grinding wheels is judged, the detected result is transmitted to a control system, the control system judges according to the different detection results, and corresponding cooling nozzles or devices are selected.

When the drill bit or the milling cutter is judged, the drill bit cooling nozzle 2 is opened by using the control system, at the moment, the grinding wheel cooling device is not started, and the nozzle positioning device 5 contained in the grinding wheel cooling device is positioned at the original point position, so that the interference or influence on the machining of the drill bit or the milling cutter cannot be caused. The angle corresponding to the direction of the tool nose is already adjusted by the drill cooling nozzle 2 before machining, after the drill cooling nozzle 2 is opened, the drill cooling nozzle 2 can spray water to cool towards the direction of the tool nose of a drill or a milling cutter, and the flow rate, the flow speed and the like of the sprayed water are set according to the prior art.

When the grinding wheel is judged to be a grinding wheel, the grinding wheel cooling nozzle 3 and the air blowing nozzle 4 are positioned to cooling positions by the nozzle positioning device 5, wherein the cooling positions are set according to the grinding wheels with different diameters, that is, the cooling positions are set before machining. At the cooling position, the grinding wheel cooling nozzle 3 sprays water towards the grinding area along the rotation direction of the grinding wheel, meanwhile, the air blowing nozzle 4 blows air towards the reverse direction of the rotation direction of the grinding wheel, and the air flow of the air blowing nozzle 4, the jet flow of the grinding wheel cooling nozzle 3 and other parameters can be adjusted according to the actual conditions by adopting the existing parameters. The blowing direction of the blowing nozzle 4 is approximately or exactly opposite to the direction of the high-pressure rotating air flow generated by the grinding wheel, and the high-pressure rotating air flow can be blocked or cut off to continuously reach the grinding area along the rotation direction of the grinding wheel, so that the jet flow sprayed out from the grinding wheel cooling nozzle 3 can better enter the grinding area to achieve better cooling effect.

When the grinding wheel is judged to be the grinding wheel, the grinding wheel cooling nozzle 3 can be further sprayed with water along the tangent line of the grinding wheel and along the rotation direction of the grinding wheel, and at the moment, the cooling water reaches a cooled core area; the blowing nozzle 4 blows air tangentially to the grinding wheel and against the direction of rotation of the grinding wheel, at which time the air flow reaches the core region where the high pressure rotating air flow is cut off. When the high-pressure rotating air flow of the grinding wheel is cut off by the air blowing nozzle 4, the high-pressure rotating air flow cannot be blown to the jet flow of the grinding wheel cooling nozzle 3 to influence the water spraying direction, and the cooling liquid can be intensively sprayed to the core position of a grinding processing area, so that the cooling effect of the grinding wheel in the grinding process is effectively improved.

When it is judged that the drill or the milling cutter is used, the drill cooling nozzles 2 symmetrically disposed on both sides of the cutting edge may be used to perform water spray cooling, that is, both sides of the cutting edge may be water spray cooled, so that the amount of spray can be increased with respect to one-way water spray cooling, and the cooling effect for the drill or the milling cutter can be improved.

The moving direction of the nozzle positioning device 5 can be perpendicular to the main axis direction of the tool 1, that is, the moving positions of the grinding wheel cooling nozzle 3 and the air blowing nozzle 4 arranged on the nozzle positioning device 5 are in a plane perpendicular to the main axis of the tool 1, and it should be noted that the plane where the grinding wheel is located needs to be the same plane as the above-mentioned plane, so long as the grinding wheel cooling nozzle 3 and the air blowing nozzle 4 move towards the plane, the grinding wheel can better face the tangential direction of the grinding wheel, and the optimal air flow cutting and cooling effects can be achieved.

The type of the cutter 1 can be detected by the cutter detection device through laser induction measurement, the diameter of the cutter 1 is detected by laser, the cutter is judged to be a grinding wheel or a milling cutter or a drill bit after being compared with a preset value, and then subsequent control operation is carried out.

The principle and the implementation mode of the invention are explained by applying a specific example, and the description of the embodiment is only used for helping to understand the method and the core idea of the invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, the specific embodiments and the application range may be changed. In view of the above, the present disclosure should not be construed as limiting the invention.