Cooling angle milling head for thin-walled cavity machining center

Abstract

The utility model discloses a thin -walled cavity processing center cooling angle milling head, including milling head main part, cooling part and tool locking subassembly, and cooling part is by center cooling subassembly and end surface cooling subassembly constitutes, and center cooling subassembly sets up along the axial cooling to milling cutter, and end surface cooling subassembly sets up along the radial, and the cooling of milling area and milling cutter is carried out, is applicable to the heat dissipation of side wall deep hole milling, and tool locking subassembly is detachably connected with milling cutter, and through the position of controllable adjustment milling cutter in tool installation end, realizes the stable dismounting of milling cutter. Advantage, through center and end surface double cooling, can simultaneously cool the milling cutter cutting position, workpiece end surface cutting area and the processed side wall, improves the machining accuracy, and tool locking subassembly adopts the screw of double -end positive and negative silk tooth, and only needs to rotate to lock or push out the milling cutter steadily, avoids the pulling or knocking of weak part in traditional mode, prevents milling head body deformation or damage, improves tool changing efficiency and operating safety.

Description

Technical Field

[0001] This utility model specifically relates to a cooling angle milling head for a thin-walled cavity machining center. Background Technology

[0002] Thin-walled cavity parts are widely used in aerospace, automotive parts and other fields. They have complex structures, thin walls and poor rigidity, and require high machining accuracy and surface quality. During the machining process, especially when milling features such as side grooves and cavity sidewalls, angle milling heads are usually required. Due to the poor heat dissipation of thin-walled structures and the large amount of cutting heat generated during machining, if the tool and workpiece are not cooled in time and effectively, the workpiece is prone to thermal deformation, and even the tool wear is accelerated and its life is shortened, which seriously affects the machining quality and efficiency.

[0003] Currently, thin-walled cavity angle milling heads used in machining centers on the market generally have the following defects: 1. The cooling effect is singular and cannot meet the machining requirements of complex structures. Existing angle milling heads usually only have a coolant channel at the front end of the spindle, with the coolant outlet pointing towards the milling cutter. This is mainly used to cool the tool and remove chips. However, when machining side grooves or deep cavities, the end face and side edge of the milling cutter participate in cutting at the same time, generating a large amount of concentrated heat. The existing unidirectional cooling method cannot effectively deliver coolant to the cutting area of ​​the tool end face and the side wall surface of the machined workpiece, resulting in heat dissipation difficulties in this area. This can easily cause local overheating and deformation of the workpiece, deterioration of the machined surface quality, and affect machining accuracy.

[0004] 2. The cutting tools are inconvenient to install and remove, and the milling head body is easily damaged. The angle milling head body uses an extended tool mounting arm to mount the tool. The structure of this mounting arm is relatively weak. When removing the tool, the existing tool locking mechanism often requires the operator to pull it outward with force or strike it with a tool (such as a hammer). This rough disassembly method will generate huge bending moments and impact loads on the mounting arm, which can easily cause the precision mounting arm to bend, deform or damage the internal bearings. Once the mounting arm is damaged, the accuracy of the entire angle milling head will be completely lost, the repair cost will be high, and it may even lead to the scrapping of the entire milling head, causing huge losses to production.

[0005] Therefore, there is an urgent need for a tool that can simultaneously dissipate heat from both the end face and the side of the tool, while also providing convenient and non-destructive tool assembly and disassembly functions to overcome the shortcomings of existing technologies. Utility Model Content

[0006] The technical problem to be solved by this utility model is the problem mentioned in the background art: the existing cooling angle milling head for thin-walled cavity machining centers cannot dissipate heat from the tool end face and side when machining side cavities, which affects the machining accuracy and makes tool disassembly and assembly inconvenient.

[0007] To address the aforementioned technical problems, a cooling angle milling head for thin-walled cavity machining centers is proposed. This is achieved through the following technical solution: A cooling angle milling head for thin-walled cavity machining centers includes a milling head body, which includes a tool holder and a tool mounting end. The milling head body is connected to the spindle of the machining center via the tool holder. A milling cutter for milling is mounted on the tool mounting end. The head body is characterized by further including a cooling section within the milling head body and a tool locking assembly on the tool mounting end. The cooling section includes a vertically distributed central cooling assembly and an end-face cooling assembly. The central cooling assembly is arranged axially along the milling head body to cool the milling cutter, while the end-face cooling assembly is arranged radially along the milling head body to cool the milling area and the milling cutter, achieving heat dissipation during deep hole milling on sidewalls. The tool locking assembly is detachably connected to the milling cutter located within the tool mounting end. The tool locking assembly controllably adjusts the position of the milling cutter on the tool mounting end, achieving stable installation and removal of the milling cutter.

[0008] In a preferred embodiment of the present invention, the milling head body includes a mounting shell, which is connected to the tool holder. A transmission mounting cavity is provided in the mounting shell, and a transmission component for milling cutter transmission is disposed in the transmission mounting cavity. The mounting shell facilitates the installation of the transmission component and also facilitates the installation of the end face cooling component, making it convenient to use.

[0009] In a preferred embodiment of the present invention, the central cooling assembly includes a through-hole screw, a central water outlet vertical shaft, and a central water outlet head. One end of the central water outlet vertical shaft is installed inside the tool holder through the through-hole screw, and the other end is movably connected to the central water outlet head. Coolant is injected from the tool holder, passes through the central water outlet vertical shaft and the central water outlet head, and is sprayed out from the central water outlet head. The central cooling assembly facilitates heat dissipation of the tool through the coolant on the spindle.

[0010] In a preferred embodiment of the present invention, a through hole for water supply is provided on the through-hole screw along the axial direction. After the coolant is injected from the tool holder, it passes through the through hole on the through-hole screw and flows into the central water outlet vertical shaft. This arrangement facilitates the guidance of the coolant on the spindle of the machining equipment to cool the tool and is convenient to use.

[0011] In a preferred embodiment of the present invention, a wear-resistant pad is provided at one end of the central water outlet vertical shaft where the central water outlet head is located. The wear-resistant pad connects the central water outlet vertical shaft and the central water outlet head. When the central water outlet vertical shaft rotates relative to the central water outlet head, the wear-resistant pad prevents water leakage at the connection. The wear-resistant pad facilitates the stable fixation of the central water outlet head when the tool holder rotates, and prevents water leakage at the connection between the two.

[0012] In a preferred embodiment of the present invention, side water outlets are provided on both sides of the central water outlet. The side water outlets are distributed parallel to the central water outlet and are connected to the central water outlet. The provision of side water outlets increases the water spray area for the cutting tool and improves the heat dissipation effect.

[0013] In a preferred embodiment of the present invention, the end-face cooling assembly includes a water guide groove, a guide channel, and an end-face outlet. The water guide groove is disposed within a mounting housing on the tool mounting end, and the guide channel is disposed within the mounting housing. The water guide groove is connected to the central cooling assembly via the guide channel. The end-face outlet connected to the water guide groove is disposed near the milling cutter on the tool mounting end. Coolant is guided into the water guide groove via the guide channel and sprayed out from the end-face outlet to cool the milling area and the milling cutter. The end-face cooling assembly facilitates simultaneous heat dissipation for both the tool and the workpiece during side cavity machining, meeting the machining requirements of complex structures.

[0014] In a preferred embodiment of the present invention, two sets of water guide channels and end face outlets are provided on the mounting housing, which improves the heat dissipation effect.

[0015] In a preferred embodiment of the present invention, the tool locking assembly includes an output shaft and a tool mounting screw. The output shaft is located inside the tool mounting end, the milling cutter is inserted into the output shaft, and the tool mounting screw is screwed into the output shaft, connecting to the output shaft and the milling cutter respectively. This arrangement facilitates stable and rapid tool mounting and dismounting, and is convenient to use.

[0016] In a preferred embodiment of the present invention, the tool removal screw is a double-ended screw with both positive and negative threads. Rotating the tool removal screw adjusts the depth of the milling cutter inserted into the output shaft. This design facilitates pulling the tool in or pushing it out of the output shaft when rotating the tool removal screw, achieving stable and rapid tool removal and installation, and making it convenient to use.

[0017] The advantages of this utility model compared with the prior art are: The technical solution of this utility model is to set a central cooling component pointing to the milling cutter and an end-face cooling component pointing to the machining side on the milling head body. In use, the central cooling component can spray coolant to dissipate heat from the milling cutter, and the end-face cooling component can deliver coolant to the end-face cutting area of ​​the cutter and the side wall surface of the machined workpiece. This achieves simultaneous cooling of the cutting part of the milling cutter, the end-face cutting area of ​​the workpiece, and the machined side wall, which removes the concentrated cutting heat generated during the machining of the side groove, reduces the risk of thermal deformation of the workpiece, and improves machining accuracy and surface quality. The locking assembly, consisting of a double-ended screw with both positive and negative threads, allows the milling cutter to be smoothly pulled into the output shaft for locking simply by rotating the screw, or to be pushed out of the shaft for disassembly. This avoids the pulling or hitting of the weak mounting arm (the tool mounting end in this article) in traditional disassembly and assembly methods, fundamentally preventing deformation or damage to the milling head body due to improper operation, and improving tool changing efficiency and operational safety. Attached Figure Description

[0018] Figure 1 This is a three-dimensional illustration of the application. Figure 1 (Excluding milling cutters); Figure 2 This is a three-dimensional illustration of the application. Figure 2 (Including milling cutters) Figure 3 This is a partial sectional view of this application; Figure 4 for Figure 3 Enlarged view of point A in the middle; Figure 5 for Figure 3 Enlarged view at point B in the middle; Figure 6 for Figure 3 Enlarged view at point C; Figure 7 Partial sectional view of the mounting housing; Figure 8 This is an exploded view of this application; Explanation of reference numerals in the attached drawings: 1-Milling head body, 11-Tool holder, 12-Tool mounting end, 13-Central mounting cavity, 14-Mounting housing, 15-Transmission mounting cavity, 16-Transmission assembly, 2-Cooling section, 3-Central cooling assembly, 31-Through hole screw, 32-Gear nut, 33-Wear-resistant pad, 34-Wear-resistant pad mounting groove, 35-Central water outlet, 36-Sealing ring, 37-Side water outlet, 38-Spring, 39-Water outlet cap, 4-Central water outlet vertical shaft, 41-Bevel gear connecting section, 42-Tool holder connecting section, 5-End face cooling assembly, 51-Water guide groove, 52-Water guide sealing block, 53-Guide water channel, 54-Water outlet channel, 55-End face water outlet, 6-Tool locking assembly, 61-Output shaft, 62-Tool removal and installation screw, 63-Milling cutter limiting groove, 64-Tool mounting thread, 7-Milling cutter, 71-Connecting thread. Detailed Implementation

[0019] The following will refer to the appendix in the embodiments of this utility model. Figure 1-8 The technical solutions in the embodiments of this utility model will be described in detail below. Example

[0020] like Figure 1 and 2 As shown, a thin-walled cavity machining center cooling angle milling head includes a milling head body 1, a cooling section 2, and a tool locking assembly 6. The cooling section 2 is installed inside the milling head body 1 and includes a center cooling assembly 3 and an end face cooling assembly 5. The tool locking assembly 6 is installed inside a tool mounting end 12 on the milling head body 1, and the milling cutter 7 is installed inside the tool mounting end 12 through the tool locking assembly 6.

[0021] The milling head body 1 is an existing device, and its main function is to serve as a carrier for connecting the milling cutter 7 to the spindle on the machining center. At the same time, the milling head body 1 is also equipped with a transmission assembly 16, which drives the milling cutter 7 to rotate.

[0022] The main function of the cooling section 2 is to cool the cutting part of the milling cutter 7, the end face cutting area of ​​the workpiece, and the machined sidewall, thereby improving the cooling effect and machining accuracy.

[0023] The main function of the tool locking assembly 6 is to facilitate the stable and convenient disassembly and assembly of the milling cutter 7, and to prevent damage to the milling head body 1 by traditional disassembly and assembly methods.

[0024] like Figure 1 , 2 As shown in Figures 3 and 8, the milling head body 1 includes a tool holder 11 connected to the spindle of the machining center, a tool mounting end 12 for mounting the milling cutter 7, a transmission assembly 16 for driving the milling cutter 7, and a mounting housing 14 for mounting the transmission assembly 16.

[0025] The mounting housing 14 is connected to the tool holder 11, and the tool mounting end 12 is located below the mounting housing 14. A transmission mounting cavity 15 for mounting the transmission assembly 16 is provided inside the mounting housing 14.

[0026] The handle 11, the mounting housing 14, and the transmission assembly 16 are all existing devices. This embodiment is an improvement on the existing devices.

[0027] The tool holder 11 is hollow, and a central mounting hole 13 for mounting the central cooling assembly 3 is provided inside the tool holder 11.

[0028] Definition: In this embodiment, the end of the milling head body 1 where the tool holder 11 is mounted is the upper end, and the end where the milling cutter 7 is mounted is the lower end.

[0029] like Figure 3 , 4 As shown in Figures 5 and 8, the central cooling assembly 3 includes a through-hole screw 31, a central water outlet vertical shaft 4, and a central water outlet head 35.

[0030] The through-hole screw 31 is a round internal hexagon screw. The end of the through-hole screw 31 has a thread that connects to the central water outlet vertical shaft 4. In order to facilitate the flow of coolant, a through hole is provided in the through-hole screw 31 along the axial direction of the through-hole screw 31, and the coolant enters the central water outlet vertical shaft 4 through this through hole.

[0031] The central water outlet vertical shaft 4 is a circular shaft tube. The central water outlet vertical shaft 4 includes a tool holder connecting section 42 and a bevel gear connecting section 41. The diameter of the tool holder connecting section 42 is slightly larger than the diameter of the bevel gear connecting section 41. The tool holder connecting section 42 is fixed in the tool holder 11 by a keyway and a connecting key. The threaded end of the through hole screw 31 is screwed into the tool holder connecting section 42. The rotation of the tool holder 11 drives the central water outlet vertical shaft 4 to rotate synchronously.

[0032] The other end of the central water outlet vertical shaft 4, the bevel gear connecting section 41, is inserted into the bevel gear in the transmission assembly 16 and is connected to the bevel gear by a mounting key. When the tool holder 11 rotates, it drives the central water outlet vertical shaft 4 and the bevel gear to rotate synchronously, thereby driving the milling cutter 7 to rotate.

[0033] To facilitate the fixing of the position of the central water outlet vertical shaft 4, a thread is provided on the outer wall of the bevel gear connecting section 41, and a groove is provided on the end face of the bevel gear. A nut is placed in the groove, which is named gear nut 32. The gear nut 32 is screwed into the bevel gear connecting section 41 to fix the bevel gear stably in the bevel gear connecting section 41, ensuring that the tool holder 11 drives the transmission component 16 to move when it rotates.

[0034] To facilitate the spraying of coolant at the center of the central cooling assembly 3, a water outlet is provided on the mounting housing 14 corresponding to the central mounting cavity 13, and the central water outlet 35 is installed in this water outlet.

[0035] During milling, the tool holder 11 in the milling head body 1 rotates, while the mounting housing 14 does not rotate, so the center water outlet 35 does not rotate. In order to connect the center water outlet vertical shaft 4 and the center water outlet 35 and to prevent water leakage at the connection, a circular groove is recessed in the end face of the bevel gear connecting section 41. This groove is named the wear-resistant pad mounting groove 34. A ring-shaped wear-resistant pad 33 made of wear-resistant material (such as tungsten steel) is placed in the wear-resistant pad mounting groove 34. At the same time, a protrusion is convex outward on the end face of the center water outlet 35. The wear-resistant pad 33 is placed on this protrusion, and the two fit tightly together.

[0036] The main function of the center outlet head 35 is to guide the flow of coolant. In this embodiment, the center outlet head 35 is preferably frustoconical in shape, with a circular hole in the middle for coolant to flow through.

[0037] To prevent water leakage at the wear-resistant pad 33 and the central water outlet 35, a water outlet cap 39 with a circular water outlet is screwed onto the water outlet of the mounting housing 14. The water outlet cap 39 is screwed onto the mounting housing 14, and a spring 38 is placed on the water outlet cap 39. An annular sealing ring 36 made of rubber is placed at the end of the spring 38 away from the central water outlet 35. The sealing ring 36 is fitted onto the end face of the central water outlet 35. After the water outlet cap 39 is tightened, the spring 38 is compressed, which in turn squeezes the sealing ring 36 and the wear-resistant pad 33. The sealing ring 36 seals the gap between the central water outlet 35 and the mounting housing 14 to prevent water leakage. At the same time, the spring 38 continuously squeezes the central water outlet 35 closer to the wear-resistant pad 33 to prevent water leakage at the connection between the central water outlet 35 and the central water outlet vertical shaft 4.

[0038] The sealing principle of the wear-resistant pad 33, the central water outlet head 35, and the central water outlet vertical shaft 4 is achieved by the spring 38 continuously pressing the three together. At the same time, the contact surfaces of the three are smooth, thus achieving a leak-proof seal. This technology is used in similar waterproof structures and is an existing technology.

[0039] To increase the water output of the central cooling assembly 3, a side water outlet 37 is fixed on each side of the mounting housing 14 near the water outlet cap 39. The side water outlet 37 is cylindrical and has a through hole. Both side water outlets 37 are connected to the water outlet on the mounting housing 14. In this way, when coolant is injected into the tool holder 11 using the water supply structure in the spindle, coolant can be sprayed at the water outlet cap 39 and the two side water outlets 37 in the central cooling assembly 3 to achieve cooling and temperature reduction.

[0040] like Figure 1 , 2 As shown in Figures 7 and 8, the end face cooling assembly 5 is mounted on the mounting housing 14 and is connected to the central cooling assembly 3. When coolant is injected into the tool holder 11 using the water supply structure in the spindle, water can be supplied to both the central cooling assembly 3 and the end face cooling assembly 5 simultaneously to achieve cooling and heat dissipation.

[0041] The end face cooling assembly 5 includes a water guide groove 51, a water guide sealing block 52, a water guide channel 53, and an end face outlet 55. The water guide groove 51 is a groove with a rectangular cross-section. The water guide groove 51 is recessed on the side wall below the mounting housing 14 and is in the shape of an inverted "L". The end face outlet 55 is opened on the end face of the mounting housing 14 where the milling cutter 7 is mounted, and does not penetrate the mounting housing 14. In order to facilitate the connection between the end face outlet 55 and the water guide groove 51, a circular water outlet channel 54 is opened on the water guide groove 51, and the water guide groove 51 and the end face outlet 55 are connected through the water outlet channel 54.

[0042] In order to seal the water channel 51, an "L"-shaped sealing block is fixed to the mounting housing 14 with screws. This sealing block is named water channel sealing block 52. The water channel sealing block 52 seals the water channel 51, forming a flow channel with only two open ends to facilitate the flow of coolant.

[0043] To facilitate the connection between the water guide channel 51 and the central cooling assembly 3, a circular guide channel 53 is provided at the upper end of the water guide channel 51 perpendicular to the end face. The guide channel 53 connects the water guide channel 51 with the water outlet at the water outlet pressure cap 39 on the mounting housing 14, thus achieving connection with the central cooling assembly 3. This allows the end face cooling assembly 5 and the central cooling assembly 3 to spray coolant simultaneously, thereby cooling and dissipating heat from the milling cutter 7 and the cutting end face.

[0044] To improve heat dissipation, two sets of water guide channels 51 and end face water outlets 55 are provided, and the two sets are symmetrically distributed on the mounting housing 14.

[0045] like Figure 1 , 3 As shown in Figures 6 and 8, the tool locking assembly 6 includes an output shaft 61 and a tool mounting screw 62. The output shaft 61 is a circular tube, and a gear is fixedly mounted on the output shaft 61. The output shaft 61 is connected to the transmission assembly 16 through the gear.

[0046] To facilitate the installation of the milling cutter 7, a groove with a regular hexagonal cross-section is provided in the output shaft 61. This groove is named the milling cutter limiting groove 63, and the fixed end of the milling cutter 7 can be inserted into the milling cutter limiting groove 63.

[0047] To facilitate the fixing of the milling cutter 7, a threaded hole is provided on the end face of the milling cutter limiting groove 63, which is named the tool mounting threaded hole 64. At the same time, a circular hole is also provided at the end of the milling cutter 7 that is inserted into the output shaft 61, and a thread is provided on the hole wall, which is named the connecting thread 71. The tool mounting screw 62 can be connected to the tool mounting threaded hole 64 and the connecting thread 71 respectively to fix the milling cutter 7.

[0048] To facilitate easy installation and removal of the milling cutter 7, the tool removal screw 62 is a double-ended screw with both positive and negative threads. This allows the milling cutter 7 to be pulled into the output shaft 61 for locking when the tool removal screw 62 is turned, or to be pushed out of the output shaft 61 for disassembly.

[0049] The usage process of this embodiment is as follows: When in use, the milling head body 1 is first installed on the spindle of the machining center through the tool holder 11. During machining, the water supply structure in the spindle injects coolant into the tool holder 11. The coolant is sprayed onto the milling cutter 7 and the machining surface through the central cooling component 3 and the end face cooling component 5, respectively, to achieve cooling. When it is necessary to disassemble or assemble the milling cutter 7, turn the tool disassembly and assembly screw 62 to pull the milling cutter 7 into the output shaft 61 to complete the locking, or push it out of the output shaft 61 to achieve the disassembly or assembly of the milling cutter 7.

[0050] The above embodiments are only for illustrating the technical concept of this utility model and should not be construed as limiting the scope of protection of this utility model. Any modifications made to the technical solution based on the technical concept proposed by this utility model shall fall within the scope of protection of this utility model.

Claims

1. A cooling angle milling head for a thin-walled cavity machining center, comprising a milling head body (1), the milling head body (1) including a tool holder (11) and a tool mounting end (12), the milling head body (1) being connected to the spindle of the machining center via the tool holder (11), and a milling cutter (7) for milling being mounted on the tool mounting end (12), characterized in that: It also includes a cooling section (2) disposed in the milling head body (1) and a tool locking assembly (6) disposed at the tool mounting end (12). The cooling section (2) includes a vertically distributed central cooling assembly (3) and an end face cooling assembly (5). The central cooling assembly (3) is arranged along the axial direction of the milling head body (1) to cool the milling cutter (7), and the end face cooling assembly (5) is arranged along the radial direction of the milling head body (1) to cool the milling area and the milling cutter (7), thereby achieving heat dissipation in the deep hole milling process on the side wall. The tool locking assembly (6) is detachably connected to the milling cutter (7) located in the tool mounting end (12). The tool locking assembly (6) can controllably adjust the position of the milling cutter (7) in the tool mounting end (12) to achieve stable installation and removal of the milling cutter (7).

2. The cooling angle milling head for thin-walled cavity machining centers according to claim 1, characterized in that: The milling head body (1) includes a mounting shell (14), which is connected to the tool holder (11). A transmission mounting cavity (15) is provided in the mounting shell (14), and a transmission assembly (16) for the transmission of the milling cutter (7) is provided in the transmission mounting cavity (15).

3. The cooling angle milling head for thin-walled cavity machining centers according to claim 1, characterized in that: The central cooling assembly (3) includes a through-hole screw (31), a central water outlet vertical shaft (4), and a central water outlet head (35). One end of the central water outlet vertical shaft (4) is installed inside the tool holder (11) through the through-hole screw (31), and the other end is movably connected to the central water outlet head (35). Coolant is injected from the tool holder (11), passes through the central water outlet vertical shaft (4) and the central water outlet head (35), and is sprayed out from the central water outlet head (35).

4. The cooling angle milling head for thin-walled cavity machining centers according to claim 3, characterized in that: A through hole for water supply is provided on the through hole screw (31) along the axial direction. After the coolant is injected from the tool holder (11), it passes through the through hole on the through hole screw (31) and flows into the central water outlet vertical shaft (4).

5. The cooling angle milling head for thin-walled cavity machining centers according to claim 3, characterized in that: A wear-resistant pad (33) is provided at one end of the central water outlet vertical shaft (4) and the central water outlet head (35). The wear-resistant pad (33) connects the central water outlet vertical shaft (4) and the central water outlet head (35). When the central water outlet vertical shaft (4) rotates relative to the central water outlet head (35), the wear-resistant pad (33) prevents water leakage at the connection.

6. The cooling angle milling head for thin-walled cavity machining centers according to claim 3, characterized in that: Side outlets (37) are provided on both sides of the central outlet (35). The side outlets (37) are distributed parallel to the central outlet (35) and are connected to the central outlet (35).

7. The cooling angle milling head for thin-walled cavity machining centers according to claim 1, characterized in that: The end face cooling assembly (5) includes a water guide groove (51), a guide channel (53), and an end face outlet (55). The water guide groove (51) is located inside the mounting housing (14) on the tool mounting end (12). The guide channel (53) is located inside the mounting housing (14). The water guide groove (51) is connected to the central cooling assembly (3) through the guide channel (53). The end face outlet (55) connected to the water guide groove (51) is located near the milling cutter (7) on the tool mounting end (12). The coolant is guided into the water guide groove (51) through the guide channel (53) and sprayed out from the end face outlet (55) to cool the milling area and the milling cutter (7).

8. The cooling angle milling head for thin-walled cavity machining centers according to claim 7, characterized in that: Two sets of water guide channels (51) and end face outlets (55) are provided on the mounting housing (14).

9. The cooling angle milling head for thin-walled cavity machining centers according to claim 1, characterized in that: The tool locking assembly (6) includes an output shaft (61) and a tool removal screw (62). The output shaft (61) is located inside the tool mounting end (12), the milling cutter (7) is inserted into the output shaft (61), and the tool removal screw (62) is screwed into the output shaft (61) and connected to the output shaft (61) and the milling cutter (7) respectively.

10. The cooling angle milling head for thin-walled cavity machining centers according to claim 9, characterized in that: The tool removal screw (62) is a double-headed screw with both positive and negative threads. Rotating the tool removal screw (62) adjusts the depth of the milling cutter (7) inserted into the output shaft (61).

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