Milling device for precision part machining

Abstract

The invention relates to the field of milling, in particular to a milling device for precision part machining, which comprises a body part, the body part comprises a seat body, a material bearing platform and a milling machine, the material bearing platform is mounted on the seat body and can move, and the milling machine is mounted on the seat body 11 and positioned right above the material bearing platform. According to a dual heat dissipation mechanism and internal heat dissipation of a cooling system, a plurality of heat dissipation channels are formed in a milling head, heat generated in the milling process is guided into a collecting cavity, in the collecting cavity, a liquid directional flowing control piece rotating through centrifugal force drives cooling liquid to conduct cooling, meanwhile, the cooling liquid is guided into the heat dissipation channels, and the cooling liquid is cooled; and cooling liquid flows directionally to take away heat at the front end of the milling cutter, so that internal heat dissipation is realized. And external heat dissipation: a cooling spray head mounted on the body part is used for cooling the surface of the milling tool bit, so that the temperature of the tool bit is further reduced, and the heat dissipation effect is improved.

Description

Technical Field

[0001] The invention relates to the field of milling, in particular to a milling device for machining precision parts. Background Art

[0002] In the process of parts processing, milling is a commonly used processing method. The milling machine is a widely used machine tool. It can process planes, grooves, toothed parts, spiral surfaces and various curved surfaces. In addition, it can also be used for processing the surface of rotating bodies, inner holes and cutting. When the milling machine is working, the workpiece is mounted on the workbench or the indexing head and other accessories. The rotation of the milling cutter is the main motion, supplemented by the feed motion of the workbench or the milling head, and the workpiece can obtain the required processing surface.

[0003] During the milling process, the milling cutter head generates a lot of heat. If this heat cannot be dissipated in a timely and effective manner, it will shorten the service life of the tool, reduce the processing accuracy, and may even cause the workpiece to deform. At present, although some milling devices are equipped with cooling systems, the cooling effect of these systems is not ideal. They can often only take away the heat on the surface of the cutter head, but cannot effectively dissipate the heat inside the cutter head. In addition, the materials used in some milling cutter heads have poor thermal conductivity, which causes heat to accumulate inside the cutter head and cannot be quickly transferred to the outside and taken away by the coolant. Summary of the invention

[0004] Therefore, the technical problem to be solved by the present invention is that although some milling devices are equipped with cooling systems, the cooling effects of these systems are not ideal and they can often only take away the heat on the surface of the cutter head but cannot effectively dissipate the heat inside the cutter head.

[0005] The above technical problem is solved by the following technical solution: The present invention proposes a milling device for precision parts processing, including a main body component, which includes a seat body and a material support platform installed on the seat body and capable of moving position, and a milling machine installed on the seat body 11 and located directly above the material support platform; The milling head is installed on the milling machine, and a plurality of heat dissipation channels are arranged inside the milling head. The plurality of heat dissipation channels are connected to a collecting chamber, and a liquid directional flow control member controlled by centrifugal force is arranged in the collecting chamber.

[0006] In a preferred embodiment of the milling device for precision parts processing of the present invention: the liquid directional flow control component includes an impeller located at the center of the collecting chamber, the impeller is coaxially arranged with the milling head, and the upper and lower ends of the impeller are fixed in the collecting chamber by bearings.

[0007] In a preferred embodiment of the milling device for precision parts processing of the present invention: the impeller includes a rotating shaft and a base plate installed at the bottom of the rotating shaft, and a plurality of blades are arranged at equal intervals in a ring shape on the outer wall of the rotating shaft. The cross-section of the blade is surrounded by a plane, a first inclined surface, a second inclined surface and a horizontal plane, and the first inclined surface and the second inclined surface are inclined in opposite directions, and the second inclined surface is arranged in an arc shape and the thickness gradually becomes thinner from the fixed end to the free end.

[0008] In a preferred embodiment of the milling device for precision parts processing of the present invention: the heat dissipation channel is arranged in a U shape, and the U-shaped end is located at the free end of the milling head, the inlet and outlet ends are located in the collecting chamber, and the inlet is located in the lower half of the collecting chamber, and the outlet is located in the upper half of the collecting chamber.

[0009] In a preferred embodiment of the milling device for precision parts processing of the present invention: a piston is provided at the inlet of each heat dissipation channel, and the piston is used to control the unidirectional flow of the coolant in the heat dissipation channel.

[0010] In a preferred embodiment of the milling device for precision parts processing of the present invention: the piston member includes a piston plate, a one-way water inlet valve is arranged on the piston plate, a spring is arranged on the inner side of the piston plate, an extrusion rod is arranged on the outer side of the piston plate, an extrusion head is arranged at the front end of the extrusion rod, and the extrusion head is arranged in an isosceles trapezoid, a groove is arranged at the bottom of the impeller, and the extrusion head is against the outer wall of the bottom of the impeller.

[0011] In a preferred embodiment of the milling device for precision parts processing of the present invention: the impeller is flush with the inlet of each of the heat dissipation channels, and is used to introduce the coolant into the inlet of the heat dissipation channels.

[0012] In a preferred embodiment of the milling device for precision parts processing of the present invention: the milling head is arranged in a spiral shape and is provided with a plurality of spiral ridges, and a heat dissipation channel is arranged inside each of the ridges.

[0013] In a preferred embodiment of the milling device for precision parts processing of the present invention: the material supporting platform includes an up and down moving member installed on the base body 11, a front and rear moving member is arranged on the up and down moving member, and a left and right moving member is installed above the front and rear moving member, and a supporting platform is installed on the left and right moving member.

[0014] In a preferred embodiment of the milling device for precision parts processing of the present invention: the base body is arranged in a "7" shape, and a milling machine is arranged at the upper end, and a cooling nozzle is also arranged on the side of the milling machine.

[0015] The beneficial effects of the present invention are: improving heat dissipation efficiency: internal heat dissipation is achieved by setting a plurality of heat dissipation channels inside the milling head to guide the heat generated during the milling process into the collecting chamber. In the collecting chamber, the liquid directional flow control member that rotates by centrifugal force drives the coolant for cooling, and at the same time, the coolant is introduced into the heat dissipation channel to make the coolant flow in a directional manner to take away the heat at the front end of the milling cutter, thereby achieving internal heat dissipation. This design can effectively reduce the temperature inside the milling head and extend the service life of the tool. External heat dissipation is achieved by a cooling nozzle installed on the main body component to achieve external heat dissipation of the cutter head. The cooling nozzle sprays coolant to cool the surface of the milling cutter head, further reducing the temperature of the cutter head and improving the heat dissipation effect. This internal and external dual heat dissipation design can more comprehensively control the temperature of the milling head and ensure the stability and accuracy of the machining process.

[0016] Extend tool life: The dual heat dissipation mechanism of internal heat dissipation channels and external cooling nozzles can effectively reduce the temperature of the milling head and reduce the impact of thermal stress on the tool, thereby extending the tool life. This not only reduces processing costs, but also improves processing efficiency and quality.

[0017] Improve machining accuracy: Effective heat dissipation can reduce machining errors caused by temperature changes, ensure the stability and accuracy of the machining process, and by controlling the temperature of the milling head, maintain the performance of the tool, thereby improving machining accuracy and surface quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings of the embodiments of the present invention are briefly introduced below. Obviously, the drawings described below only relate to some embodiments of the present invention, but are not intended to limit the present invention. Among them: Figure 1 The overall structure of the present invention is shown in FIG. Figure 1 ; Figure 2 The overall structure of the present invention is shown in FIG. Figure 2 ; Figure 3 It is a schematic diagram of the cross-sectional structure of the milling head of the present invention; Figure 4 This is a schematic diagram of the internal structure of the collecting chamber of the present invention; Figure 5 It is a schematic diagram of the impeller structure of the present invention; Figure 6 It is a schematic diagram of the top view structure of the collecting chamber of the present invention.

[0019] In the figure: 1. Main body; 11. Base; 12. Material support platform; 121. Up and down moving parts; 122. Front and rear moving parts; 123. Left and right moving parts; 124. Support platform; 13. Milling machine; 14. Cooling nozzle; 2. Milling head; 21. Heat dissipation channel; 211. Inlet; 212. Outlet; 22. Collecting chamber; 23. Liquid directional flow control component; 231. Impeller; 2311. Rotating shaft; 2312. Bottom plate; 2313. Blade; 2314. Groove; a. Plane; b. First inclined surface; c. Second inclined surface; d. Horizontal plane; 232. Piston member; 2321. Piston plate; 2322. One-way water inlet valve; 2323. Spring; 2324. Extrusion rod; 2325. Extrusion head. DETAILED DESCRIPTION

[0020] In order to enable those skilled in the art to better understand the present invention, the present invention is further described in detail below in conjunction with specific implementation methods and drawings.

[0021] The terms used in the present invention are those general terms currently widely used in the art in consideration of the functions of the present invention, but these terms may vary according to the intention of a person of ordinary skill in the art, precedents, or new technologies in the art. In addition, specific terms may be selected by the applicant, and in this case, their detailed meanings will be described in the detailed description of the present invention. Therefore, the terms used in the specification should not be understood as simple names, but rather as a general description based on the meaning of the terms and the present invention.

[0022] Reference Figure 1-Figure 6 The present embodiment provides a milling device for precision parts processing, including a main body part 1, which includes a base body 11 and a material supporting platform 12 installed on the base body 11 and can be moved, and a milling machine 13 installed on the base body 11 and located directly above the material supporting platform 12; a milling head 2, which is installed on the milling machine 13 and has a plurality of heat dissipation channels 21 arranged inside. The plurality of heat dissipation channels 21 are connected to a collecting chamber 22, and a liquid directional flow control member 23 controlled by centrifugal force is arranged in the collecting chamber 22.

[0023] In this embodiment, the main body part 1 of the milling device for precision parts processing includes a base 11, which provides stable support for the entire device, a material support platform 12 is used to carry the precision parts to be processed, and can be moved in position so as to adjust the position of the workpiece during the processing, and a milling machine 13 is installed on the base 11, located directly above the material support platform 12, and is used to perform milling processing on the workpiece. The milling head 2 is installed on the milling machine 13, and a plurality of heat dissipation channels 21 are arranged inside it. These heat dissipation channels 21 are connected to a collection chamber 22, and a liquid directional flow control member 23 controlled by centrifugal force is arranged in the collection chamber 22. The main function of the control member is to control the directional flow of the coolant inside the milling head 2 through the action of centrifugal force, thereby achieving effective heat dissipation.

[0024] Dual heat dissipation mechanism of the cooling system (1) Internal heat dissipation: By setting a plurality of heat dissipation channels 21 inside the milling head 2, the heat generated during the milling process is guided to the collecting chamber 22. In the collecting chamber 22, the liquid directional flow control member 23 rotates by centrifugal force to drive the coolant for cooling. At the same time, the coolant is introduced into the heat dissipation channel 21, so that the coolant flows in a directional manner and takes away the heat at the front end of the milling cutter to achieve internal heat dissipation. This design can effectively reduce the temperature inside the milling head 2 and extend the service life of the tool. (2) External heat dissipation: The cooling nozzle 14 installed on the main body part 1 realizes the external heat dissipation of the cutter head. The cooling nozzle 14 sprays coolant to cool the surface of the milling head 2, further reducing the temperature of the cutter head and improving the heat dissipation effect. This dual internal and external heat dissipation design can more comprehensively control the temperature of the milling head 2 and ensure the stability and accuracy of the processing process.

[0025] The effects are as follows: (a) Efficient heat dissipation: Through the dual heat dissipation mechanism of the internal heat dissipation channel 21 and the external cooling nozzle 14, the temperature of the milling head 2 can be effectively reduced and the heat dissipation efficiency can be improved. (b) Extending the tool life: Effective heat dissipation can reduce the impact of thermal stress on the tool, extend the tool life, and reduce processing costs. (c) Improving processing accuracy: By controlling the temperature of the milling head 2, the processing error caused by temperature changes can be reduced, and the processing accuracy and quality can be improved. (d) The design of the internal heat dissipation channel 21 and the liquid directional flow control part 23 allows the coolant to be evenly distributed to various parts of the milling head 2, ensuring the uniformity and stability of the heat dissipation effect.

[0026] Reference Figure 1-Figure 2The material support platform 12 includes an up-and-down moving member 121 mounted on the base 11, a front-and-back moving member 122 mounted on the up-and-down moving member 121, a left-and-right moving member 123 mounted above the front-and-back moving member 122, and a support platform 124 mounted on the left-and-right moving member 123. The base 11 is configured in a "7" shape, and a milling machine 13 is disposed at the upper end, and a cooling nozzle 14 is also disposed on the side of the milling machine 13.

[0027] It should be noted that the base 11 of the main body part 1 is the basic structure of the entire milling device, and its shape is designed to be "7" shaped. This design is to provide stable support and sufficient space to install other components. In the existing milling machine design, the base 11 usually plays a role of bearing and fixing to ensure the stability of the entire device. The material support platform 12 is installed on the base 11 and can be moved. This design allows the position of the workpiece to be adjusted as needed during the processing, thereby improving the flexibility and accuracy of the processing. The material support platform 12 includes an up and down moving part 121, a front and back moving part 122, a left and right moving part 123 and a support table 124. This multi-directional moving design is similar to the workbench of a traditional milling machine, and movement in the X, Y, and Z directions is achieved by manual or electric drive. The milling machine 13 is installed on the base 11 and is located directly above the material support platform 12 for milling processing. The cooling nozzle 14 is arranged on the side of the milling machine 13 for spraying coolant. During the milling process, the coolant can reduce the temperature of the tool and the workpiece, extend the service life of the tool and improve the processing accuracy. Existing milling machines are usually also equipped with a cooling system, but this design may pay more attention to the cooling effect on the inside of the tool.

[0028] Working process: When using the milling device for processing, first place the precision parts to be processed on the support platform 124 and fix them. Then, by operating the up-and-down moving parts 121, the front-and-back moving parts 122, and the left-and-right moving parts 123, adjust the material support platform 12 to a suitable position so that the workpiece is directly under the milling machine 13. Then, start the milling machine 13 and start the milling process. At the same time, the cooling nozzle 14 sprays coolant to cool the tool and workpiece during the milling process. In addition, the heat dissipation channel 21 inside the milling head 2 and the liquid directional flow control part 23 in the collecting chamber 22 will also play a role, controlling the flow of coolant through centrifugal force, further improving the cooling effect, and ensuring the processing quality and tool life.

[0029] Reference Figure 3-Figure 6 The liquid directional flow control member 23 includes an impeller 231 located at the center of the collecting chamber 22. The impeller 231 is coaxially arranged with the milling head 2, and the upper and lower ends of the impeller 231 are fixed in the collecting chamber 22 through bearings.

[0030] It should be noted that the liquid directional flow control member 23 is a key component for the internal cooling of the milling head 2. It realizes the directional flow of the coolant through centrifugal force, thereby effectively dissipating heat. The control member mainly includes the following parts: the impeller 231 is located at the center of the collecting chamber 22 inside the milling head 2, and is coaxially arranged with the milling head 2 to ensure that the impeller 231 rotates synchronously when the milling head 2 rotates. The upper and lower ends of the impeller 231 are fixed in the collecting chamber 22 through bearings, which ensures the stability and rotation accuracy of the impeller 231, while reducing friction, so that the impeller 231 can efficiently throw the coolant to the outer edge. The collecting chamber 22 serves as the collection and distribution center of the coolant. When the milling head 2 rotates, the impeller 231 rotates in the collecting chamber 22, and uses centrifugal force to throw the coolant from the center of the impeller 231 to the outer edge. The coolant is thrown to the outer edge of the collecting chamber 22 under the action of the centrifugal force, and enters various heat dissipation parts of the milling head 2 through the heat dissipation channel 21 to achieve effective heat dissipation. A plurality of heat dissipation channels 21 are arranged inside the milling head 2, and these channels are connected with the collecting chamber 22 to ensure that the coolant is evenly distributed to various parts of the milling head 2. When the coolant flows in the heat dissipation channels 21, it takes away the heat generated during the milling process, reduces the temperature of the milling head 2, and prolongs the service life of the tool.

[0031] During the working process, when the milling head 2 starts to rotate, the impeller 231 also rotates. The rotation of the impeller 231 generates centrifugal force, which throws the coolant from the center of the impeller 231 to the outer edge. The thrown coolant forms a certain pressure in the collecting chamber 22, and then enters the various heat dissipation parts of the milling head 2 through the heat dissipation channel 21. When the coolant flows in the heat dissipation channel 21, it takes away the heat generated during the milling process, thereby reducing the temperature of the milling head 2 and ensuring the processing accuracy and tool life.

[0032] The effect is: through the action of centrifugal force, the coolant can be evenly distributed to various parts of the milling head 2, achieving efficient heat dissipation effect, the impeller 231 is fixed in the collecting chamber 22 through a bearing, ensuring the stability and accuracy of rotation, reducing friction and wear, and effective heat dissipation can significantly reduce the temperature of the milling head 2, extend the service life of the tool, and improve processing efficiency. Through the above design, the liquid directional flow control member 23 can significantly improve the cooling effect of the milling head 2 and ensure the stability and accuracy of the processing process.

[0033] Reference Figure 3-Figure 6 The impeller 231 includes a rotating shaft 2311 and a bottom plate 2312 installed at the bottom of the rotating shaft 2311. A plurality of blades 2313 are arranged in a ring shape at equal intervals on the outer wall of the rotating shaft 2311. The cross section of the blade 2313 is surrounded by a plane a, a first inclined surface b, a second inclined surface c and a horizontal plane da. The first inclined surface b and the second inclined surface c are inclined in opposite directions. The second inclined surface c is arranged in an arc shape and its thickness gradually becomes thinner from the fixed end to the free end.

[0034] It should be explained that, since the first bevel b and the second bevel c are inclined in opposite directions, the first bevel b is inclined downward, the second bevel c is inclined upward, and the area of ​​the second bevel c is much larger than the area of ​​the first bevel b, and the second bevel c is located below the first bevel b, so that when the coolant pushes the impeller 231 to rotate through the arc-shaped second bevel c, and when the impeller 231 rotates, the coolant moves from the inner fixed end to the outer free end along the second bevel c, and is introduced into the heat dissipation channel 21 inlet 211 outside the collecting chamber 22. When the cooling water is sprayed out from the outlet 212 of the heat dissipation channel 21, it impacts the first bevel b from above, further pushing the impeller 231 to rotate, and the two parts work together to drive the impeller 231 to rotate. Plane a is the front face and is provided with an inclined tendency to guide the coolant from the inside to the outside. These settings are all to ensure that the rotation of the milling head 2 can drive the impeller 231 to rotate through the action of centrifugal force, and at the same time ensure that the speed of the impeller 231 is not slow.

[0035] Reference Figure 3-Figure 6 The milling head 2 is arranged in a spiral shape and is provided with a plurality of spiral ridges, and a heat dissipation channel 21 is arranged inside each ridge.

[0036] It should be explained that the milling head 2 is designed to be spiral-shaped, which is a common design in existing milling cutters. The spiral shape enables the milling cutter to remove materials more effectively during the cutting process, while reducing cutting force and vibration, and improving processing accuracy and surface quality. The outer wall of such a milling head 2 is provided with a plurality of spiral ridges, which are the main parts of the milling cutter in contact with the workpiece. During the cutting process, the ridges and the workpiece rub and cut, generating a large amount of heat. A heat dissipation channel 21 is provided inside each ridge. This design enables the heat dissipation channel 21 to be directly located at the location where heat is generated, and can effectively take away the heat, thereby reducing the temperature of the milling head 2. The coolant or gas inside the heat dissipation channel 21 can absorb the heat and take it away, thereby achieving a heat dissipation effect. In addition, the grooves 2314 between the ridges can also dissipate heat, further improving the heat dissipation efficiency.

[0037] Advantages: The heat dissipation channel 21 is arranged inside the convex ridge, so that the heat generated part can be directly dissipated, thereby improving the pertinence and efficiency of heat dissipation. In addition to the heat dissipation channel 21 inside the convex ridge, the groove 2314 between the convex ridges can also dissipate heat, making the heat dissipation effect of the entire milling head 2 more uniform and effective. Through effective heat dissipation design, the temperature of the milling head 2 can be reduced, and the influence of thermal stress on the tool can be reduced, thereby extending the service life of the tool and improving processing efficiency and quality.

[0038] Reference Figure 3-Figure 6The heat dissipation channel 21 is set to be U-shaped, and the U-shaped end is located at the free end of the milling head 2, the inlet and outlet 212 ends are located in the collecting chamber 22, and the inlet 211 is located in the lower half of the collecting chamber 22, and the outlet 212 is located in the upper half of the collecting chamber 22. The impeller 231 is flush with the inlet 211 of each heat dissipation channel 21, and is used to introduce the coolant into the inlet 211 of the heat dissipation channel 21.

[0039] It should be noted that the heat dissipation channel 21 adopts a U-shaped design, and its U-shaped end is located at the free end of the milling head 2, that is, the end of the milling head 2 away from the milling machine 13. The U-shaped heat dissipation channel 21 can effectively increase the contact area between the coolant and the milling head 2, thereby improving the heat dissipation efficiency. When the coolant flows in the U-shaped channel, it can fully absorb the heat generated during the milling process and take it away, ensuring that the temperature of the milling head 2 is effectively controlled.

[0040] The inlet and outlet 212 ends of the heat dissipation channel 21 are located in the collecting chamber 22, and the inlet 211 is located in the lower half of the collecting chamber 22, and the outlet 212 is located in the upper half of the collecting chamber 22. This layout design has the following functions and advantages: (1) The flow direction of the coolant. After the coolant enters the collecting chamber 22 from the inlet 211, since the inlet 211 is located in the lower half, the coolant will naturally flow to the bottom of the U-shaped heat dissipation channel 21. In the process of flowing through the U-shaped channel, the coolant absorbs the heat generated by the milling head 2, and then flows out from the outlet 212. The outlet 212 is located in the upper half, which is conducive to the natural flow of the coolant under the action of gravity and reduces the energy required for pumping. (2) Heat dissipation efficiency. By arranging the inlet 211 and the outlet 212 in the lower half and the upper half of the collecting chamber 22 respectively, it can be ensured that the coolant forms an effective circulation flow in the U-shaped channel. This flow mode not only improves the heat dissipation efficiency, but also avoids the coolant from being retained in the channel or forming vortices, thereby ensuring that the coolant can evenly take away the heat of the milling head 2. (3) Structural optimization: This layout design makes the connection between the heat dissipation channel 21 and the collecting chamber 22 more compact, reduces the flow resistance of the coolant, and improves the efficiency of the entire cooling system. At the same time, this design also facilitates the supply and recovery of the coolant and simplifies the structure of the cooling system. Through the above design, the U-shaped heat dissipation channel 21 can not only dissipate heat effectively, but also ensure that the flow of the coolant is smoother and more efficient, thereby extending the service life of the milling head 2 and improving the processing accuracy and efficiency. A piston member 232 is provided at the inlet 211 of each heat dissipation channel 21, and the piston member 232 is used to control the unidirectional flow of the coolant in the heat dissipation channel 21.

[0041] Reference Figure 3-Figure 6The impeller 231 is designed so that its edge is on the same horizontal line as the inlet 211 of each heat dissipation channel 21, that is, the impeller 231 is flush with the inlet 211 of the heat dissipation channel 21. This design ensures that the coolant can directly enter the heat dissipation channel 21 when the impeller 231 rotates, and no unnecessary eddy current or retention is generated in the collecting chamber 22. When the milling head 2 rotates, the impeller 231 throws the coolant from the center of the collecting chamber 22 to the outer edge under the action of centrifugal force. Since the impeller 231 is flush with the inlet 211 of the heat dissipation channel 21, the coolant can directly enter the heat dissipation channel 21 when being thrown out, thereby realizing efficient coolant introduction. This design not only improves the flow efficiency of the coolant, but also ensures that the coolant can be evenly distributed to each heat dissipation channel 21, thereby realizing effective heat dissipation of various parts of the milling head 2.

[0042] Reference Figure 3-Figure 6 The piston member 232 includes a piston plate 2321, a one-way water inlet valve 2322 is arranged on the piston plate 2321, a spring 2323 is arranged on the inner side of the piston plate 2321, an extrusion rod 2324 is arranged on the outer side of the piston plate 2321, and an extrusion head 2325 is arranged at the front end of the extrusion rod 2324. The extrusion head 2325 is arranged in an isosceles trapezoid. A groove 2314 is arranged at the bottom of the impeller 231, and the extrusion head 2325 is against the outer wall of the bottom of the impeller 231.

[0043] It should be noted that a plurality of grooves 2314 are provided on the bottom plate 2312 at the bottom of the impeller 231, and each groove 2314 is located between two adjacent blades 2313. Since the extrusion head 2325 moves along the bottom plate 2312 at the bottom of the impeller 231, when the impeller 231 rotates, the extrusion head 2325 moves outward from the groove 2314 to drive the extrusion rod 2324 to move outward, and the extrusion rod 2324 drives the piston plate 2321 to move outward, and at the same time compresses the spring 2323, and the piston plate 2321 moves The coolant at the inlet 211 of the heat dissipation channel 21 is pushed to the deep part of the heat dissipation channel 21. When the extrusion head 2325 moves to the groove 2314, the extrusion head 2325 moves outward. Under the action of the spring 2323, the piston plate 2321 and the extrusion rod 2324, the extrusion head 2325, etc. move outward. When the piston plate 2321 moves outward, the one-way water inlet valve 2322 installed on the piston plate 2321 opens, and cooperates with the cooling water introduced by the impeller 231 to introduce the cooling water into the inlet 211 of the heat dissipation channel 21. A plurality of one-way water inlet valves 2322 are arranged on the piston plate 2321.

[0044] Finally, it should be pointed out that the methods and devices described in detail above are only embodiments, and those skilled in the art can modify these embodiments in different ways without departing from the scope of the present invention.

Claims

1. A milling device for precision parts processing, characterized in that: include A main body component (1) comprising a base (11), a material support platform (12) mounted on the base (11) and capable of being moved, and a milling machine (13) mounted on the base (11) and located directly above the material support platform (12); A milling head (2) is mounted on the milling machine (13), and is provided with a plurality of heat dissipation channels (21) therein; the plurality of heat dissipation channels (21) are connected to a collecting chamber (22), and a liquid directional flow control member (23) controlled by centrifugal force is provided in the collecting chamber (22).

2. The milling device for precision parts processing according to claim 1, characterized in that: The liquid directional flow control member (23) comprises an impeller (231) located at the center of the collecting chamber (22); the impeller (231) is coaxially arranged with the milling head (2), and the upper and lower ends of the impeller (231) are fixed in the collecting chamber (22) via bearings.

3. The milling device for precision parts processing according to claim 2, characterized in that: The impeller (231) comprises a rotating shaft (2311) and a bottom plate (2312) mounted at the bottom of the rotating shaft (2311); a plurality of blades (2313) are arranged in an annular manner at equal intervals on the outer wall of the rotating shaft (2311); a cross section of the blade (2313) is formed by a plane (a), a first inclined surface (b), a second inclined surface (c) and a horizontal surface (d); the first inclined surface (b) and the second inclined surface (c) are inclined in opposite directions; the second inclined surface (c) is arranged in an arc shape and its thickness gradually becomes thinner from the fixed end to the free end.

4. The milling device for precision parts processing according to claim 2, characterized in that: The heat dissipation channel (21) is configured to be U-shaped, with the U-shaped end being located at the free end of the milling head (2), the inlet and outlet ends being located in the collecting chamber (22), the inlet (211) being located at the lower half of the collecting chamber (22), and the outlet (212) being located at the upper half of the collecting chamber (22).

5. The milling device for precision parts processing according to claim 3 or 4, characterized in that: A piston member (232) is provided at the inlet (211) of each heat dissipation channel (21), and the piston member (232) is used to control the unidirectional flow of the coolant in the heat dissipation channel (21).

6. The milling device for precision parts processing according to claim 5, characterized in that: The piston member (232) comprises a piston plate (2321), a one-way water inlet valve (2322) is arranged on the piston plate (2321), a spring (2323) is arranged on the inner side of the piston plate (2321), an extrusion rod (2324) is arranged on the outer side of the piston plate (2321), an extrusion head (2325) is arranged at the front end of the extrusion rod (2324), and the extrusion head (2325) is arranged in an isosceles trapezoid; a groove (2314) is arranged at the bottom of the impeller (231), and the extrusion head (2325) abuts against the outer wall of the bottom of the impeller (231).

7. The milling device for precision parts processing according to claim 4, characterized in that: The impeller (231) is flush with the inlet of each of the heat dissipation channels (21), and is used to introduce the coolant into the inlet (211) of the heat dissipation channel (21).

8. The milling device for precision parts processing according to claim 4, characterized in that: The milling head (2) is arranged in a spiral shape and is provided with a plurality of spiral ridges, and a heat dissipation channel (21) is arranged inside each ridge.

9. The milling device for precision parts processing according to claim 1, characterized in that: The material supporting platform (12) comprises an up-and-down moving member (121) mounted on the base body (11), a front-and-rear moving member (122) being arranged on the up-and-down moving member (121), a left-and-right moving member (123) mounted above the front-and-rear moving member (122), and a supporting platform (124) mounted on the left-and-right moving member (123).

10. The milling device for precision parts processing according to claim 1, characterized in that: The seat body (11) is arranged in a "7" shape, and a milling machine (13) is arranged at the upper end, and a cooling nozzle (14) is also arranged on the side of the milling machine (13).

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