A vortex cooling module and a rotary tool

Abstract

The utility model relates to tool cooling technical field, especially a kind of eddy current cooling module and rotary cutter.It comprises tool shank and the insert and handle of installation on tool shank, and vortex chamber cooling module is installed in tool shank, and eddy current cooling module includes module main body and outlet valve, and the two ends of module main body are gas inlet end and outlet end respectively;Module main body has vortex passage inside, and the end of vortex passage away from gas inlet end has vortex chamber communicated with vortex passage, and the circumferential of vortex chamber is provided with multiple airflow channels, and the end of vortex passage away from vortex chamber is equipped with multiple outlet channels arranged around its circumferential;Outlet valve is coaxially installed in gas inlet end and located in the end of vortex passage;Gas inlet end has gas inlet channel in the outer circumferential of outlet valve and communicated with airflow channel;Outlet end has cooling channel communicated with vortex chamber.The utility model effectively solves the technical problem of poor cooling effect of gas cooling mode in the prior art.

Description

Technical Field

[0001] This utility model relates to the field of tool cooling technology, and in particular to a vortex cooling module and a rotary tool. Background Technology

[0002] During machining processes such as cutting, milling, and drilling, the intense friction between the cutting tool, workpiece, and chips, as well as the energy released by material deformation during machining, all generate cutting heat. This cutting heat causes the tool temperature to rise rapidly, leading to a decrease in the tool material's hardness and wear resistance. This not only accelerates tool wear but can also cause thermal cracking or even chipping, significantly shortening tool life. Furthermore, the high temperature in the cutting zone causes the workpiece material to expand and deform, directly affecting the dimensional accuracy after machining. The high-temperature environment can also cause chips to adhere to the tool surface, increasing the surface roughness of the machined workpiece and impacting the final machining quality.

[0003] To address the aforementioned issues, the most commonly used cooling methods in machining are liquid cooling and gas cooling. The core principle of liquid cooling is to directly spray coolant onto the cutting area, where the flow and heat exchange of the coolant remove heat, thus achieving cooling. Gas cooling is mainly used in machining environments where liquid cooling is not feasible, such as precision machining scenarios that are sensitive to coolant or require avoiding liquid contamination. Its core principle is to blow high-pressure gas into the cutting area using equipment, where the rapid flow of high-pressure gas causes heat to diffuse from the cutting area, achieving a cooling effect.

[0004] While the aforementioned liquid cooling can achieve cooling of the cutting zone to a certain extent, it has the following problems in actual cooling: 1. When using liquid cooling, the large amount of sprayed coolant is prone to splashing, which not only contaminates the machine tool equipment but also damages the cleanliness of the working environment; 2. The purchase cost of coolant and the cost of treating waste coolant after use are high, and the harmful substances volatilized during the storage and treatment of waste coolant can also pose a potential health hazard to operators; 3. When using gas cooling, the high-pressure gas used is mostly at room temperature, and its own heat absorption capacity is limited. After absorbing a certain amount of heat, it quickly reaches a thermal equilibrium state, making it difficult to continuously and effectively remove the high temperature from the cutting zone, resulting in poor overall cooling effect and failing to meet the processing requirements with high cooling efficiency. Utility Model Content

[0005] This utility model provides a vortex cooling module to solve the technical problem of poor cooling effect of gas cooling in the prior art; the purpose of this utility model is also to provide a rotary cutting tool.

[0006] To solve the above problems, the vortex cooling module provided by this utility model adopts the following technical solution: A vortex cooling module includes a module body and an exhaust valve, with one end of the module body being an air inlet and the other end being an air outlet; The module body has a vortex channel, and the end of the vortex channel away from the air inlet has a vortex chamber that communicates with the vortex channel. Multiple airflow channels are arranged around the vortex chamber in a circumferential direction, and the end of the vortex channel away from the vortex chamber has multiple air outlet channels arranged around it in a circumferential direction. The exhaust valve is coaxially mounted at the intake end and located at the end of the vortex channel, and is used to block the vortex channel to ensure that gas is discharged from the exhaust channel only at the intake end; The air inlet has an air inlet channel located on the outer periphery of the air outlet valve and communicating with the airflow channel; The outlet end has a cooling channel that communicates with the vortex chamber.

[0007] The beneficial effects of the vortex cooling module provided by this utility model are as follows: When high-pressure gas enters the module body from the inlet channel, it first enters the airflow channel connected to the inlet channel, and then enters the vortex chamber along the airflow channel. The high-pressure gas entering the vortex chamber begins to rotate and gradually accelerates under the action of centrifugal force and inertia, forming high-pressure rotating gas. Then, the high-pressure rotating gas enters the vortex channel and moves from the vortex chamber to the outlet valve. When the high-pressure rotating gas reaches the outlet valve, it is divided into two parts. One part of the high-pressure rotating gas is not blocked by the outlet valve and is discharged from the outlet channel. The other part is blocked by the outlet valve and flows back. The high-pressure rotating gas flowing back exchanges energy with the airflow in the original direction. Finally, the high-temperature high-pressure rotating gas flows out from the outlet channel, and the low-temperature high-pressure rotating gas is discharged through the cooling channel to cool the cutting area.

[0008] Through the above-mentioned design, this utility model effectively solves the technical problem of poor cooling effect of gas cooling methods in the prior art.

[0009] Furthermore, the vent valve is threadedly connected to the main body of the module.

[0010] Furthermore, the exhaust valve includes an integrally formed conical stop section, an adjusting section, and a connecting section. The maximum outer diameter of the conical stop section is smaller than the inner diameter of the vortex channel, and the outer diameter of the adjusting section matches the inner diameter of the vortex channel. The adjusting section is located at the exhaust channel and is sealed to the inner wall of the module body, and the connecting section is threaded to the module body. When the connecting section is screwed, the adjusting section moves axially to change the area of ​​its obstruction of the exhaust channel.

[0011] Furthermore, the exhaust valve includes an integrally formed conical stop section, an intermediate section, and a connecting section. The maximum outer diameter of the conical stop section and the outer diameter of the intermediate section are both smaller than the inner diameter of the vortex channel. The intermediate section is located at the exhaust channel, and the connecting section is threadedly connected to the module body.

[0012] Furthermore, the airflow channel is a straight channel, and the included angle between any two adjacent airflow channels is the same and is an acute angle.

[0013] To solve the above problems, the rotary cutting tool provided by this utility model adopts the following technical solution: A rotary cutting tool includes a tool holder and a cutting blade and a tool shank mounted on the tool holder. The tool holder is equipped with the aforementioned vortex cooling module, and the end of the cooling channel in the vortex cooling module facing away from the vortex chamber faces the cutting blade. The vortex cooling module includes a module body and an exhaust valve. One end of the module body is the air inlet, and the other end is the air outlet. The module body has a vortex channel, and the end of the vortex channel away from the air inlet has a vortex chamber that communicates with the vortex channel. Multiple airflow channels are arranged around the vortex chamber in a circumferential direction, and the end of the vortex channel away from the vortex chamber has multiple air outlet channels arranged around it in a circumferential direction. The exhaust valve is coaxially mounted at the intake end and located at the end of the vortex channel, and is used to block the vortex channel to ensure that gas is discharged from the exhaust channel only at the intake end; The air inlet has an air inlet channel located on the outer periphery of the air outlet valve and communicating with the airflow channel; The outlet end has a cooling channel that communicates with the vortex chamber.

[0014] The beneficial effects of the rotary cutting tool provided by this utility model are as follows: When high-pressure gas enters the module body from the air inlet channel, it first enters the airflow channel connected to the air inlet channel, and then enters the vortex chamber along the airflow channel. Under the action of centrifugal force and inertia, the high-pressure gas in the vortex chamber begins to rotate and gradually accelerates, forming high-pressure rotating gas. Then, the high-pressure rotating gas enters the vortex channel and moves from the vortex chamber to the exhaust valve. When the high-pressure rotating gas reaches the exhaust valve, it is divided into two parts. One part of the high-pressure rotating gas is not blocked by the exhaust valve and is discharged from the exhaust channel. The other part is blocked by the exhaust valve and flows back. The high-pressure rotating gas flowing back exchanges energy with the airflow in the original direction. Then, the high-temperature high-pressure rotating gas flows out from the exhaust channel, and the low-temperature high-pressure rotating gas is discharged to the cutting tool part through the cooling channel to cool the cutting area containing the cutting tool.

[0015] Through the above-mentioned design, this utility model effectively solves the technical problem of poor cooling effect of gas cooling methods in the prior art.

[0016] Furthermore, the tool holder has a connecting channel for connecting the cooling channel and extending to the blade.

[0017] Furthermore, the tool holder has a mounting groove for mounting the blade and a mounting position for mounting a clamping member. The clamping member is used to clamp the blade and is fixedly mounted on the tool holder by bolts.

[0018] Furthermore, the clamping member has an L-shaped structure, which includes a horizontal section and a vertical section. The vertical section is sealed and installed in the mounting position, and the horizontal section is clamped above the blade away from the vertical section. The bolt passes through the vertical section and is screwed onto the blade shank.

[0019] Furthermore, the vertical section has a main air passage connected to the connecting channel, and the horizontal section has two branch air passages connected to the main air passage. The ends of the two branch air passages that are away from the main air passage extend to the blade, and the two branch air passages are located on opposite sides of the bolt.

[0020] Furthermore, the vent valve is threadedly connected to the main body of the module.

[0021] Furthermore, the exhaust valve includes an integrally formed conical stop section, an adjusting section, and a connecting section. The maximum outer diameter of the conical stop section is smaller than the inner diameter of the vortex channel, and the outer diameter of the adjusting section matches the inner diameter of the vortex channel. The adjusting section is located at the exhaust channel and is sealed to the inner wall of the module body, and the connecting section is threaded to the module body. When the connecting section is screwed, the adjusting section moves axially to change the area of ​​its obstruction of the exhaust channel.

[0022] Furthermore, the exhaust valve includes an integrally formed conical stop section, an intermediate section, and a connecting section. The maximum outer diameter of the conical stop section and the outer diameter of the intermediate section are both smaller than the inner diameter of the vortex channel. The intermediate section is located at the exhaust channel, and the connecting section is threadedly connected to the module body.

[0023] Furthermore, the airflow channel is a straight channel, and the included angle between any two adjacent airflow channels is the same and is an acute angle. Attached Figure Description

[0024] The above and other objects, features, and advantages of the present invention will become readily understood by reading the following detailed description of exemplary embodiments with reference to the accompanying drawings. In the drawings, several embodiments of the present invention are shown by way of example and not limitation, and like or corresponding reference numerals denote like or corresponding parts, wherein: Figure 1 This is a schematic diagram of the vortex cooling module provided by this utility model. Figure 2for Figure 1 Right view of the vortex cooling module shown; Figure 3 for Figure 2 Schematic diagram of the AA section; Figure 4 for Figure 2 Schematic diagram of the BB cross section; Figure 5 This is a schematic diagram of the vortex chamber and airflow channel in the vortex cooling module provided by this utility model. Figure 6 A schematic diagram of the air outlet valve provided by this utility model; Figure 7 This is a schematic diagram of the structure of the rotary cutting tool provided by this utility model; Figure 8 for Figure 7 The diagram shows the internal structure of the rotary cutting tool. Figure 9 for Figure 7 A schematic diagram of the internal structure of the middle clamping block.

[0025] Explanation of reference numerals in the attached figures: 1. Module body; 2. Exhaust valve; 3. Vortex channel; 4. Vortex chamber; 5. Airflow channel; 6. Exhaust channel; 7. Intake channel; 8. Cooling channel; 9. Conical stop section; 10. Intermediate section; 11. Connecting section; 12. Tool holder; 13. Blade; 14. Tool shank; 15. Connecting channel; 16. Clamping component; 17. Horizontal section; 18. Vertical section; 19. Main airflow channel; 20. Diverter airflow channel; 21. Mounting hole; 22. Groove; 23. Exhaust port. Detailed Implementation

[0026] The principles and spirit of this utility model will be explained in detail below with reference to several representative embodiments.

[0027] An embodiment of the vortex cooling module provided by this utility model: like Figures 1 to 6 As shown, the vortex cooling module includes a module body 1 and an exhaust valve 2. One end of the module body 1 is the air inlet end, and the other end is the air outlet end.

[0028] Regarding module 1. For example... Figures 1 to 5 As shown, the main body 1 of the module has a vortex channel 3. The left end of the vortex channel 3 has a vortex chamber 4 connected to it. The outer periphery of the vortex chamber 4 is provided with multiple airflow channels 5 arranged circumferentially around it. The right end of the vortex channel 3 is provided with multiple air outlet channels 6 arranged circumferentially around it. The air inlet end is provided with an air inlet channel 7 located on the outer periphery of the vortex channel 3 and connected to the airflow channels 5. The air outlet end has a cooling channel 8 connected to the vortex chamber 4.

[0029] like Figure 3 and Figure 4 As shown, to ensure that gas is discharged only from the outlet channel 6 at the inlet end, the outlet valve 2 is coaxially mounted at the inlet end and positioned at the right end of the vortex channel 3 to block the right end of the vortex channel 3. At the right end of the vortex channel 3, only the outlet channel 6 is reserved as the outlet 23. In this embodiment, the inlet channel 7 is located on the outer periphery of the outlet valve 2.

[0030] In this embodiment, the exhaust valve 2 is fixedly installed at the air inlet end and is threadedly connected to the module body 1. For example... Figure 6 As shown, the exhaust valve 2 includes an integrally formed conical stop section 9, an intermediate section 10, and a connecting section 11. The maximum outer diameter of the conical stop section 9 and the outer diameter of the intermediate section 10 are both smaller than the inner diameter of the vortex channel 3. The intermediate section 10 is located at the exhaust channel 6, and the connecting section 11 is threadedly connected to the right end of the module body 1.

[0031] In other embodiments, the exhaust valve 2 is threadedly connected to the module body 1. The exhaust valve 2 includes an integrally formed conical stop section 9, an adjusting section, and a connecting section 11. The maximum outer diameter of the conical stop section 9 is smaller than the inner diameter of the vortex channel 3, and the outer diameter of the adjusting section matches the inner diameter of the vortex channel 3. The adjusting section is located at the exhaust channel 6 and seals against the inner wall of the right end of the module body 1. The connecting section 11 is threadedly connected to the right end of the module body 1. When the connecting section 11 is screwed on, the adjusting section moves axially to change the area of ​​its obstruction of the exhaust channel 6.

[0032] In this embodiment, as Figure 5 As shown, the airflow channel 5 is a straight channel, and the included angle between any two adjacent airflow channels 5 is the same and is an acute angle.

[0033] The working principle of the vortex cooling module provided by this utility model is as follows: First, high-pressure gas enters the module body 1 through the intake channel 7, then moves along the airflow channel 5 connected to the intake channel 7 and enters the vortex chamber 4 tangentially. Under the action of centrifugal force and inertial force, the high-pressure gas in the vortex chamber 4 begins to rotate and gradually accelerates, forming high-pressure rotating gas. Then, the high-pressure rotating gas enters the vortex channel 3 and moves from the vortex chamber 4 to the exhaust valve 2. When the high-pressure rotating gas reaches the exhaust valve 2, it splits into two parts. One part of the high-pressure rotating gas is not blocked by the exhaust valve 2 and is discharged from the exhaust channel 6. The other part is blocked by the exhaust valve 2 and flows back. The returning high-pressure rotating gas exchanges energy with the original airflow. Finally, the high-temperature high-pressure rotating gas flows out from the exhaust channel 6, while the low-temperature high-pressure rotating gas is discharged through the cooling channel 8 to cool the cutting area.

[0034] An embodiment of the rotary cutting tool provided by this utility model: like Figures 7 to 9 As shown, the rotary cutting tool includes a tool holder 12 and blades 13 and tool shank 14 respectively installed at the left and right ends of the tool holder 12. A vortex cooling module is installed inside the tool holder 12. The cooling channel 8 in the vortex cooling module faces the blade 13 at the end away from the vortex chamber 4 (i.e., the left end of the cooling channel 8).

[0035] The vortex cooling module installed inside the tool holder 12 is exactly the same as the vortex cooling module described above, and will not be described again here.

[0036] In this embodiment, as Figure 8 As shown, the tool holder 12 has a connecting channel 15 for connecting the cooling channel 8 and extending to the blade 13, and the tool holder 12 also has an air outlet 23 communicating with the air outlet channel 6.

[0037] In this embodiment, as Figure 8 As shown, the tool holder 12 has a mounting groove for mounting the blade 13 and a mounting position for mounting the clamping member 16, which is used to clamp the blade 13. In this embodiment, the clamping member 16 is fixedly mounted on the tool holder 12 by bolts.

[0038] In this embodiment, as Figure 9 As shown, the clamping member 16 has an L-shaped structure, which includes a horizontal section 17 and a vertical section 18. The vertical section 18 is sealed and installed in the mounting position. The left end of the horizontal section 17 is pressed against the top of the blade 13. The horizontal section 17 has a mounting hole 21 for mounting bolts. The blade shank 12 has a screw hole corresponding to the mounting hole 21. The bolt passes through the vertical section 18 and is screwed onto the blade shank 12.

[0039] like Figure 9 As shown, in this embodiment, the vertical section 18 has a main airway 19 that extends vertically and communicates with the connecting channel 15, and the horizontal section 17 has two branch airways 20 that communicate with the main airway 19. The left ends of the two branch airways 20 extend to the blade 13, and the two branch airways 20 are located on opposite sides of the bolt.

[0040] like Figure 9 As shown, in this embodiment, two grooves 22 are provided on the vertical section 18 at intervals to be used for installing the sealing ring.

[0041] The working principle of the rotary cutting tool provided by this utility model is as follows: First, high-pressure gas enters the module body 1 through the inlet channel 7, then advances along the airflow channel 5 connected to the inlet channel 7 and enters the vortex chamber 4 tangentially. Inside the vortex chamber 4, the high-pressure gas begins to rotate and gradually accelerates under the action of centrifugal force and inertial force, forming high-pressure rotating gas. Then, the high-pressure rotating gas enters the vortex channel 3 and moves from the vortex chamber 4 towards the outlet valve 2. When the high-pressure rotating gas reaches the outlet valve 2, it splits into two parts. One part of the high-pressure rotating gas is not obstructed by the outlet valve 2 and exits through the outlet channel... One part of the gas is discharged from outlet 6, while the other part is blocked by outlet valve 2 and flows back. The high-pressure rotating gas flowing back exchanges energy with the original airflow. Finally, the high-temperature and high-pressure rotating gas flows out from outlet channel 6, while the low-temperature and high-pressure rotating gas is discharged through cooling channel 8 to connecting channel 15. Then, it enters the main air channel 19 from connecting channel 15. At the end of the main air channel 19, it is divided into two parts and enters two branch air channels 20 respectively. Finally, the low-temperature and high-pressure rotating gas is discharged from branch air channels 20 to the cutting area containing the blade 13, thereby achieving cooling of the cutting area.

[0042] Based on the above description in this specification, those skilled in the art will also understand that the following terms used, such as "upper," "lower," "front," "rear," "left," "right," "width," "horizontal," "top," "bottom," "inner," and "outer," are terms indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings of this specification. They are only for the purpose of facilitating the explanation of the present invention and simplifying the description, and do not explicitly or implicitly suggest that the device or element involved must have the specific orientation, or be constructed and operated in a specific orientation. Therefore, the above-mentioned orientation or positional relationship terms should not be understood or interpreted as limitations on the present invention.

[0043] In addition, in the description of this specification, "multiple" means at least two, such as two, three or more, etc., unless otherwise expressly and specifically defined.

Claims

1. A vortex cooling module, characterized in that, It includes a module body and an air outlet valve. One end of the module body is the air inlet, and the other end is the air outlet. The module body has a vortex channel, and the end of the vortex channel away from the air inlet has a vortex chamber that communicates with the vortex channel. Multiple airflow channels are arranged around the vortex chamber in a circumferential direction, and the end of the vortex channel away from the vortex chamber has multiple air outlet channels arranged around it in a circumferential direction. The exhaust valve is coaxially mounted at the intake end and located at the end of the vortex channel, and is used to block the vortex channel to ensure that gas is discharged from the exhaust channel only at the intake end; The air inlet has an air inlet channel located on the outer periphery of the air outlet valve and communicating with the airflow channel; The outlet end has a cooling channel that communicates with the vortex chamber.

2. The vortex cooling module according to claim 1, characterized in that, The vent valve is threadedly connected to the main body of the module.

3. The vortex cooling module according to claim 2, characterized in that, The exhaust valve includes an integrally formed conical stop section, an adjusting section, and a connecting section. The maximum outer diameter of the conical stop section is smaller than the inner diameter of the vortex channel, and the outer diameter of the adjusting section matches the inner diameter of the vortex channel. The adjusting section is located at the exhaust channel and is sealed to the inner wall of the module body. The connecting section is threaded to the module body. When the connecting section is screwed, the adjusting section moves axially to change the area of ​​the exhaust channel it covers.

4. The vortex cooling module according to claim 2, characterized in that, The exhaust valve includes an integrally formed conical stop section, a middle section, and a connecting section. The maximum outer diameter of the conical stop section and the outer diameter of the middle section are both smaller than the inner diameter of the vortex channel. The middle section is located at the exhaust channel, and the connecting section is threadedly connected to the module body.

5. The vortex cooling module according to any one of claims 1 to 4, characterized in that, The airflow channel is a straight channel, and the included angle between any two adjacent airflow channels is the same and is an acute angle.

6. A rotary cutting tool, comprising a tool holder and a cutting blade and a tool shank mounted on the tool holder, characterized in that, The tool holder is equipped with a vortex cooling module as described in any one of claims 1 to 5, wherein the end of the cooling channel in the vortex cooling module facing away from the vortex chamber faces the blade.

7. The rotary cutting tool according to claim 6, characterized in that, The tool holder has a connecting channel for connecting the cooling channel and extending to the blade.

8. The rotary cutting tool according to claim 7, characterized in that, The tool holder has a mounting groove for mounting the blade and a mounting position for mounting a clamping component. The clamping component is used to clamp the blade and is fixedly mounted on the tool holder by bolts.

9. The rotary cutting tool according to claim 8, characterized in that, The clamping component has an L-shaped structure, which includes a horizontal section and a vertical section. The vertical section is sealed and installed in the mounting position, and the horizontal section is clamped above the blade away from the vertical section. The bolt passes through the vertical section and is screwed onto the blade holder.

10. The rotary cutting tool according to claim 9, characterized in that, The vertical section has a main air passage connected to the connecting channel, and the horizontal section has two branch air passages connected to the main air passage. The ends of the two branch air passages opposite to the main air passage extend to the blade, and the two branch air passages are located on opposite sides of the bolt.

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