A high-gloss end mill

Abstract

This utility model discloses a high-gloss end mill, including a shank, a cutter head connected to one end of the shank, a cutter body fixedly mounted to one end of the cutter head, a drilling end on the end of the cutter body away from the cutter head, a peripheral cutting edge in the middle of the cutter body, a back-shaving finishing edge on the side of the cutter body near the peripheral cutting edge, an arc-shaped long plate fixedly connected to the surface of the cutter head near the shank, a limit bolt threaded to one side of the arc-shaped long plate, a slotted groove in the middle of the shank near the cutter head, a cross block fixedly connected to the middle of the cutter head near the shank, the cross block engaging with the slotted groove, and a limit screw hole corresponding to the limit bolt on the surface of the shank. This high-gloss end mill, by adding a back-shaving finishing edge around the peripheral cutting edge, can improve chip adhesion during machining, enhance post-polishing treatment, further improve the surface finish of the cutting edge, and facilitate the disassembly and replacement of the cutter head and cutter body, making it convenient to use and improving efficiency.

Description

Technical Field

[0001] This utility model relates to the field of milling cutters, specifically a milling cutter with a high-gloss structure. Background Technology

[0002] A milling cutter is a rotating cutting tool with one or more cutting teeth used for milling operations. During operation, each cutting tooth sequentially and intermittently removes the excess material from the workpiece. Milling cutters are mainly used on milling machines to machine planes, steps, grooves, shaped surfaces, and cut off workpieces. High-finish milling cutters are specifically designed to achieve high-gloss finishes, typically made of cemented carbide (such as tungsten carbide) and ground on high-precision machine tools. Milling cutters are usually constructed as a single unit with the cutter holder, which is connected to the motor and coupling. Changing the milling cutter often requires disconnecting it from the motor output, which is inconvenient and reduces work efficiency. Utility Model Content

[0003] The purpose of this utility model is to provide a high-gloss milling cutter to solve the problem mentioned in the background art that milling cutters are usually made of one piece of the cutter and the cutter holder, and the cutter holder is connected to the motor and coupling. When changing the milling cutter, it is often necessary to remove it from the output end of the motor, which is inconvenient and reduces work efficiency.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a high-gloss milling cutter, comprising a shank, a cutter head connected to one end of the shank, a milling cutter body fixedly mounted to one end of the cutter head, a drilling end provided at the end of the milling cutter body away from the cutter head, a peripheral cutting edge provided in the middle of the milling cutter body, a back-shaving finishing edge provided on the side of the milling cutter body near the peripheral cutting edge, an arc-shaped long plate fixedly connected to the surface of the cutter head near the shank, a limit bolt threaded to one side of the arc-shaped long plate, and a slotted screw on the middle of the shank near the end of the cutter head. The cutter head has a slot, and a horizontal block is fixedly connected to the middle of the end near the handle. The horizontal block engages with the slot. The surface of the handle has a limiting screw hole corresponding to the limiting bolt. A reinforcing bolt extending into the slot is threaded to the middle of the back of the handle. The horizontal block on the cutter head is directly inserted into the slot. Then, the limiting bolt is rotated into the limiting screw hole for limiting. The reinforcing bolt is then rotated through the slot into the locking hole to further limit the horizontal block, thus completing the connection between the cutter head and the handle. Similarly, to disassemble, the corresponding bolt can be loosened.

[0005] As a preferred technical solution of this utility model, the milling cutter body surface is provided with a chip removal groove on the side near the peripheral cutting edge, and the milling cutter body surface is provided with a tooth clearance groove on the side near the drilling end.

[0006] As a preferred technical solution of this utility model, the limiting bolt is threadedly connected to the limiting screw hole, and a torsion bar is fixedly connected to the top of the limiting bolt to facilitate the rotation of the limiting bolt. The torsion bar facilitates the rotation of the limiting bolt to tighten and limit the cutting head.

[0007] As a preferred technical solution of this utility model, a positioning magnetic sheet is embedded on the side of the cutter head near the slot. The positioning magnetic sheet is in contact with the surface of the cutter handle and is used to attract the cutter handle, which facilitates the pre-connection of the cutter handle and the cutter head.

[0008] As a preferred technical solution of this utility model, the middle part of the horizontal block is provided with a locking hole, and one end of the reinforcing bolt extends into the interior of the locking hole.

[0009] As a preferred technical solution of this utility model, the milling cutter body includes a base material layer, a wear-resistant layer disposed on the outside of the base material layer, and an anti-corrosion paint layer disposed on the outside of the wear-resistant layer. The base material layer is made of tungsten steel, the wear-resistant layer is made of ceramic coating, and the anti-corrosion paint layer is made of polyurethane. The wear-resistant layer improves the wear resistance of the tool, and the anti-corrosion paint layer improves the corrosion resistance of the tool.

[0010] Compared with the prior art, the beneficial effects of this utility model are:

[0011] The milling cutter body is equipped with a drilling end, a back-cutting edge, and a peripheral edge. The drilling end is the end of the entire tool for drilling and milling. The addition of a back-cutting edge around the peripheral edge can improve the chip adhesion during machining, enhance the post-polishing treatment, and further improve the surface finish of the cutting edge. The milling cutter body is connected to the tool holder through the cutter head. During installation, the cross block on the cutter head is directly inserted into the slot, and then the limiting bolt is rotated into the limiting screw hole for limiting. Then, the reinforcing bolt is rotated through the slot into the retaining hole to further limit the cross block, completing the connection between the cutter head and the tool holder. Similarly, during disassembly, the corresponding bolts are loosened. The entire milling cutter is easy to disassemble and replace, making it convenient to use and improving efficiency. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model;

[0013] Figure 2 This is a cross-sectional view of the connection between the handle and the blade of this utility model;

[0014] Figure 3 This is a rear structural view of the handle and blade of this utility model;

[0015] Figure 4 This is a structural diagram of the milling cutter body of this utility model.

[0016] In the diagram: 1. Tool holder; 2. Tool head; 3. Milling cutter body; 4. Drilling end; 5. Shaving back finishing edge; 6. Peripheral edge; 7. Tooth clearance groove; 8. Chip removal groove; 9. Arc-shaped long blade; 10. Limiting bolt; 11. Torsion bar; 12. Slotted groove; 13. Horizontal block; 14. Positioning magnetic plate; 15. Limiting screw hole; 16. Locking hole; 17. Reinforcing bolt; 18. Base material layer; 19. Wear-resistant layer; 20. Anti-corrosion paint layer. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] Please see Figure 1-4 This utility model provides a high-gloss end mill, including a shank 1, a cutter head 2 connected to one end of the shank 1, a cutter body 3 fixedly mounted to one end of the cutter head 2, a drilling end 4 provided at the end of the cutter body 3 away from the cutter head 2, a peripheral cutting edge 6 provided in the middle of the cutter body 3, a back-shaving finishing edge 5 provided on the side of the cutter body 3 near the peripheral cutting edge 6, and an arc-shaped long plate 9 fixedly connected to the surface of the cutter head 2 near the shank 1, with a limit bolt 10 threadedly connected to one side of the arc-shaped long plate 9. A slot 12 is provided in the middle of one end near the cutter head 2. A cross block 13 is fixedly connected to the middle of one end of the cutter head 2 near the tool holder 1. The cross block 13 is engaged with the slot 12. The surface of the tool holder 1 is provided with a limiting screw hole 15 corresponding to the limiting bolt 10. A reinforcing bolt 17 extending into the slot 12 is threadedly connected to the middle of the back of the tool holder 1. A chip removal groove 8 is provided on the side of the milling cutter body 3 near the peripheral cutting edge 6. A tooth clearance groove 7 is provided on the side of the milling cutter body 3 near the drilling end 4.

[0019] See Figure 1-4 The limiting bolt 10 is threadedly connected to the limiting screw hole 15. The top of the limiting bolt 10 is fixedly connected to a torsion bar 11 that facilitates the rotation of the limiting bolt 10. The cutting head 2 is embedded with a positioning magnetic piece 14 on the side near the slot 12. The positioning magnetic piece 14 is in contact with the surface of the cutting handle 1. The middle of the cross block 13 is provided with a locking hole 16. One end of the reinforcing bolt 17 extends into the interior of the locking hole 16.

[0020] In this embodiment, during installation, the horizontal block 13 on the cutter head 2 is directly inserted into the slot 12. Then, the limiting bolt 10 is rotated into the limiting screw hole 15 for limiting. After that, the reinforcing bolt 17 is rotated through the slot 12 and into the locking hole 16 to further limit the horizontal block 13, thus completing the connection between the cutter head 2 and the handle 1.

[0021] See Figure 1-4 The milling cutter body 3 includes a base material layer 18, a wear-resistant layer 19 disposed on the outside of the base material layer 18, and an anti-corrosion paint layer 20 disposed on the outside of the wear-resistant layer 19. The base material layer 18 is made of tungsten steel, the wear-resistant layer 19 is made of ceramic coating, and the anti-corrosion paint layer 20 is made of polyurethane.

[0022] In practical use, this utility model provides a high-gloss milling cutter. The milling cutter body 3 is equipped with a drilling end 4, a back-cutting edge 5, and a peripheral edge 6. The drilling end 4 is the end of the entire tool for drilling and milling. The back-cutting edge 5 is added around the peripheral edge 6 to improve the chip adhesion during processing and to enhance the surface finish of the cutting edge after polishing. The milling cutter body 3 is connected to the tool holder 1 through the cutter head 2. During installation, the cross block 13 on the cutter head 2 is directly inserted into the slot 12. Then, the limiting bolt 10 is rotated into the limiting screw hole 15 for limiting. Then, the reinforcing bolt 17 is rotated through the slot 12 into the retaining hole 16 to further limit the cross block 13, thus completing the connection between the cutter head 2 and the tool holder 1. Similarly, during disassembly, the corresponding bolts are loosened. The entire milling cutter is easy to disassemble and replace, without the need to disassemble the entire cutter shaft and tool holder, making it convenient to use and improving efficiency.

[0023] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A high-gloss end mill, comprising a tool holder (1), characterized in that: One end of the handle (1) is connected to a cutter head (2), and one end of the cutter head (2) is fixedly mounted with a milling cutter body (3). The end of the milling cutter body (3) away from the cutter head (2) is provided with a drilling end (4). The middle part of the milling cutter body (3) is provided with a peripheral cutting edge (6). The side of the milling cutter body (3) near the peripheral cutting edge (6) is provided with a back-cutting edge (5). An arc-shaped long plate (9) is fixedly connected to the surface of the cutter head (2) near the handle (1). One side of the arc-shaped long plate (9) is threaded. A limiting bolt (10) is connected. A slot (12) is provided in the middle of the end of the handle (1) near the cutter head (2). A horizontal block (13) is fixedly connected in the middle of the end of the cutter head (2) near the handle (1). The horizontal block (13) is engaged with the slot (12). A limiting screw hole (15) corresponding to the limiting bolt (10) is provided on the surface of the handle (1). A reinforcing bolt (17) extending into the slot (12) is threadedly connected in the middle of the back of the handle (1).

2. The milling cutter according to claim 1, characterized in that: The milling cutter body (3) has a chip removal groove (8) on the side of its surface near the peripheral cutting edge (6), and a tooth clearance groove (7) on the side of its surface near the drilling end (4).

3. The milling cutter according to claim 1, characterized in that: The limiting bolt (10) is threadedly connected to the limiting screw hole (15), and a torsion bar (11) is fixedly connected to the top of the limiting bolt (10) to facilitate the rotation of the limiting bolt (10).

4. The milling cutter according to claim 1, characterized in that: The cutting head (2) is provided with a positioning magnetic piece (14) on the side near the slot (12), and the positioning magnetic piece (14) is in contact with the surface of the handle (1).

5. The milling cutter according to claim 1, characterized in that: The cross block (13) has a locking hole (16) in the middle, and one end of the reinforcing bolt (17) extends into the interior of the locking hole (16).

6. The milling cutter according to claim 1, characterized in that: The milling cutter body (3) includes a base material layer (18), a wear-resistant layer (19) disposed on the outside of the base material layer (18), and an anti-corrosion paint layer (20) disposed on the outside of the wear-resistant layer (19). The base material layer (18) is made of tungsten steel, the wear-resistant layer (19) is made of ceramic coating, and the anti-corrosion paint layer (20) is made of polyurethane.

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