High-speed cutting milling cutter for aerospace impeller machining

Abstract

The utility model discloses a high-speed cutting milling cutter for aerospace impeller machining. The milling cutter disc comprises a disc body, an installation assembly arranged on the surface of the disc body and a milling cutter assembly arranged on the outer side of the installation assembly, the installation assembly comprises cutter bar grooves formed in the edge of the disc body, and hexagonal machining can be conducted through three sets of installation blades in the four sets of cutter bar grooves. Four sides can be machined by selecting two groups of symmetrical cutter bar grooves to install blades, two sides can be machined by installing any blade in the four groups of cutter bar grooves, the height positions of the cutter bars in the cutter bar grooves are effectively adjusted through cutter head height radial adjusting bolts, and the positions of the cutter bars in the axial direction of the cutter head are adjusted by rotating cutter bar axial adjusting bolts. The blades are firmly installed at the outer ends of the cutter bars through rotation of the rotary blade pressing bolts, the disc body can be conveniently and rapidly replaced through the conical cutter disc holes, and the cutter bars and the blades of different sizes can be adjusted and replaced more easily as required compared with an overall cutter disc.

Description

Technical Field

[0001] This utility model relates to the field of milling cutter technology, specifically a high-speed cutting milling cutter for machining aerospace impellers. Background Technology

[0002] As a key component of power machinery, impellers are widely used in aerospace and other fields. The profile of impeller blades is very complex and has a significant impact on engine performance. Their machining technology has always been regarded as an important issue in the manufacturing industry. With the continuous development of high-speed milling technology, high-speed milling cutters can be used to machine impellers, which can ensure that the ball end of the cutter can accurately cut the workpiece, and can also utilize its rotating shaft to avoid interference or overcutting between the cutter body or cutter shank and other parts of the workpiece, thus fully meeting the requirements of impeller parts production.

[0003] An existing patent (publication number CN218135217U) discloses a high-speed cutting milling cutter for aerospace impeller machining. The inside of the chip removal groove in the milling cutter is coated with an anti-static coating, which allows for rapid chip removal and prevents waste chips from accumulating in the chip removal groove due to static electricity. A first bearing seat is fixed on the fixed seat of the milling cutter. A first shaft is rotatably connected to the center of the first bearing seat. Both the first and second shafts have through holes, and a first linkage rod and a second linkage rod are slidably connected in the through holes, respectively. This allows the second shaft to be driven by the first and second linkage rods when the angle is adjusted by rotating the linkage gear plate, avoiding the need to stop the device and then adjust the angle, thus improving work efficiency.

[0004] However, existing milling cutters have some problems in use: 1. The current cutter heads are integral cutter heads, which makes it inconvenient to precisely adjust the cutter holder as needed. This greatly reduces the installation effect of the inserts and the machining effect. Different models of cutter heads can only be used, increasing costs. If the integral cutter head collidees with the inserts, the entire cutter head will be scrapped. 2. When machining square or octagonal parts with multiple inserts, the existing integral cutter heads cannot meet the requirements of high-precision machining of the side dimensions and length dimensions of square or octagonal parts because the inserts cannot be adjusted axially and radially relative to the cutter head. Utility Model Content

[0005] The purpose of this invention is to provide a high-speed cutting milling cutter for machining aerospace impellers, in order to solve the problems mentioned in the background art.

[0006] To solve the above-mentioned technical problems, the present invention provides the following technical solution: including a disc body, a mounting assembly disposed on the surface of the disc body, and a milling cutter assembly disposed on the outside of the mounting assembly;

[0007] The mounting assembly includes a tool holder groove formed on the edge of the disc body, a tool holder is installed inside the tool holder groove, a tool holder height radial adjustment bolt is installed at one end of the tool holder near the center of the disc body, and the other end of the tool holder height radial adjustment bolt is engaged with the transverse side wall of the tool holder.

[0008] The milling cutter assembly includes a cutting blade, the cutting blade is mounted on the outer surface of the cutter shank, and a clamping bolt is mounted on the outer side of the cutting blade.

[0009] As a further improvement of this utility model: a bottom hole is provided inside the tool holder, and a pressure bar bolt that cooperates with it is engaged inside the bottom hole.

[0010] As a further embodiment of this utility model: the mounting assembly also includes an inclined pressure block disposed on the side wall of the tool holder, a double-ended bolt is installed inside the inclined pressure block, and a screw hole that cooperates with the double-ended bolt is opened on the lower surface of the tool holder groove.

[0011] As a further improvement of this utility model: the lower side wall of the disc is equipped with a tool holder axial adjustment bolt, and the upper end of the tool holder axial adjustment bolt passes through the tool holder groove and is connected to the lower side of the tool holder.

[0012] As a further improvement of this utility model, a cutter head hole is provided inside the center of the disc body.

[0013] As a further improvement of this utility model, the blade has a screw hole inside that cooperates with the pressing blade bolt.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] This utility model features four sets of tool holder slots, three of which can be used to install cutting blades for hexagonal machining. Selecting two symmetrical sets of tool holder slots allows for the machining of squares. Any cutting blade can be installed in any of the four sets of tool holder slots for machining of two or more squares. The height of the tool holder within the tool holder slots can be effectively adjusted using the radial adjustment bolt of the tool disc. Rotating the tool holder bolt causes it to rotate downwards, firmly pressing the tool holder into the tool holder slot. Rotating the double-ended bolt downwards presses the inclined pressure block tightly into the tool holder slot, while simultaneously limiting the tool holder's position. The axial position of the tool holder within the tool disc can be adjusted by rotating the tool holder axial adjustment bolt.

[0016] This invention securely mounts the blade to the outer end of the blade holder by rotating the blade bolt. The conical blade disc hole facilitates quick replacement of the disc body, making it easier to adjust and replace blade holders and blades of different sizes as needed compared to an integral blade disc. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model;

[0018] Figure 2 This is a schematic diagram of the mounting components and milling cutter components according to an embodiment of the present utility model;

[0019] Figure 3 This is a schematic diagram of the installation components according to an embodiment of the present utility model;

[0020] Figure 4 This is a schematic diagram of the tool holder according to an embodiment of the present utility model.

[0021] In the diagram: 1. Disc body; 201. Tool holder groove; 202. Tool holder; 203. Radial adjustment bolt for tool holder height; 204. Pressure bar bolt; 205. Inclined pressure block; 206. Double-ended bolt; 207. Bottom hole; 208. Axial adjustment bolt for tool holder; 301. Blade; 302. Pressure blade bolt; 4. Tool holder hole. Detailed Implementation

[0022] To facilitate the solution of the problem, this utility model provides a high-speed cutting milling cutter for machining aerospace impellers. The technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model. Example 1

[0023] like Figures 1 to 4 As shown, this embodiment provides a high-speed milling cutter for machining aerospace impellers, including a disc body 1, a mounting assembly disposed on the surface of the disc body 1, and a milling cutter assembly disposed outside the mounting assembly. The mounting assembly includes a tool shank groove 201 formed on the edge of the disc body 1, and a tool shank 202 is installed inside the tool shank groove 201. A radial adjustment bolt 203 for the cutter head height is installed at one end of the tool shank 202 near the center of the disc body 1, and the other end of the radial adjustment bolt 203 is engaged with the transverse sidewall of the tool shank 202. The radial adjustment bolt 203 adjusts the tool shank height. The height position of the cutter 202 within the cutter slot 201 is effectively adjusted. The cutter 202 is pressed firmly into the cutter slot 201 by rotating the cutter 204 downwards. The inclined block 205 is pressed tightly into the cutter slot 201 by rotating the double-ended bolt 206 downwards, while simultaneously pressing and limiting the cutter 202. The milling cutter assembly includes a cutting blade 301. The cutting blade 301 is mounted on the outer surface of the cutter 202. A cutting blade pressing bolt 302 is mounted on the outer side of the cutting blade 301. By rotating the cutting blade pressing bolt 302, the cutting blade 301 is firmly mounted on the outer end of the cutter 202. Example 2

[0024] In addition to all the technical features in Embodiment 1, this embodiment also includes: a bottom hole 207 is provided in the tool bar 202, and a pressure bar bolt 204 that meshes with it is installed inside the bottom hole 207. The tool bar bolt 204 meshing in the bottom hole 207 facilitates the firm and stable clamping and fixing of the tool bar 202.

[0025] Furthermore, the mounting assembly also includes a slanted pressure block 205 disposed on the side wall of the tool bar 202. A double-ended bolt 206 is fitted inside the slanted pressure block 205, and a screw hole that mates with the double-ended bolt 206 is opened on the lower surface of the tool bar groove 201. By rotating the double-ended bolt 206 downward, the slanted pressure block 205 is pressed tightly into the tool bar groove 201, while the side of the tool bar 202 is pressed and limited.

[0026] Furthermore, a tool holder axial adjustment bolt 208 is installed on the lower side wall of the disc body 1, and the upper end of the tool holder axial adjustment bolt 208 passes through the tool holder groove 201 and is connected to the lower side of the tool holder 202. The position of the tool holder in the axial direction of the tool disc is adjusted by rotating the tool holder axial adjustment bolt 208.

[0027] Furthermore, a cutter head hole 4 is provided inside the center of the disc body 1, which facilitates the quick replacement of the disc body 1.

[0028] Furthermore, the blade 301 has a screw hole inside that mates with the pressing blade bolt 302. By rotating the pressing blade bolt 302, the blade 301 is securely installed on the outer end of the cutter bar 202. This makes it easier to adjust and replace cutter bars 202 and blades 301 of different sizes as needed compared to an integral cutter disc.

[0029] Working principle: Three of the four sets of tool holder slots 201 are used to mount cutting inserts 301 for hexagonal machining. Two symmetrical sets of tool holder slots 201 are used to mount cutting inserts 301 for square machining. Any of the four sets of tool holder slots 201 can be used to mount cutting inserts 301 for two-sided or off-center machining. The height of the tool holder 202 within the tool holder slots 201 is effectively adjusted using the radial adjustment bolt 203. Rotating the tool holder clamping bolt 204 causes it to rotate downwards, firmly pressing the tool holder 202 onto the tool holder. Inside the bar groove 201, the inclined pressure block 205 is pressed tightly into the bar groove 201 by rotating the double-ended bolt 206 downwards, while the bar 202 is pressed and limited. The position of the bar in the axial direction of the cutter head is adjusted by rotating the bar axial adjustment bolt 208. The blade 301 is firmly installed on the outer end of the bar 202 by rotating the blade pressing bolt 302. The conical cutter head hole 4 facilitates quick replacement of the disc body 1. It is easier to adjust and replace the bar 202 and blade 301 of different sizes as needed than the whole cutter head.

[0030] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0031] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A high-speed milling cutter for machining aerospace impellers, characterized in that: Includes a disk body (1), a mounting assembly disposed on the surface of the disk body (1), and a milling cutter assembly disposed on the outside of the mounting assembly; The mounting assembly includes a tool bar groove (201) formed on the edge of the disc body (1), a tool bar (202) is installed inside the tool bar groove (201), a tool bar (202) is installed at one end of the tool bar (202) near the center of the disc body (1), and the other end of the tool bar (202) is engaged with the transverse side wall of the tool bar (202); The milling cutter assembly includes a cutting insert (301), the cutting insert (301) is mounted on the outer surface of the cutter shank (202), and a clamping bolt (302) is mounted on the outer side of the cutting insert (301).

2. The high-speed milling cutter for aerospace impeller machining according to claim 1, characterized in that: The tool holder (202) has a bottom hole (207) inside, and a pressure bar bolt (204) that meshes with it is installed inside the bottom hole (207).

3. A high-speed milling cutter for aerospace impeller machining according to claim 2, characterized in that: The mounting assembly also includes a slanted pressure block (205) disposed on the side wall of the tool bar (202), a double-ended bolt (206) is installed inside the slanted pressure block (205), and a screw hole that cooperates with the double-ended bolt (206) is opened on the lower surface of the tool bar groove (201).

4. A high-speed milling cutter for aerospace impeller machining according to claim 1, characterized in that: The lower side wall of the disc (1) is equipped with a tool bar axial adjustment bolt (208), and the upper end of the tool bar axial adjustment bolt (208) passes through the tool bar groove (201) and is connected to the lower side of the tool bar (202).

5. A high-speed milling cutter for aerospace impeller machining according to claim 1, characterized in that: The disk body (1) has a cutter head hole (4) inside its center.

6. A high-speed milling cutter for aerospace impeller machining according to claim 1, characterized in that: The blade (301) has a screw hole inside that cooperates with the pressure blade bolt (302).

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