Novel milling cutter disc

Abstract

The novel milling cutter disc comprises a cutter handle, a cutter disc body, cutting blades and a locking bolt, the cutter disc body is connected with the cutter handle in an inserted mode, the locking bolt coaxially penetrates through the cutter disc body and the cutter handle and is in threaded connection with the cutter handle, and the cutter disc body is locked on the cutter handle through the locking bolt; a plurality of cutting blades are evenly and detachably arranged on the side, away from the cutter handle, of the cutter disc in the circumferential direction of the cutter disc at intervals. A plurality of small recoil chip blocking covers are further included, the small recoil chip blocking covers correspond to the cutting blades, and the small recoil chip blocking covers are detachably arranged on the side wall, away from the cutter handle, of the cutter head and located on the sides of the cutting edges of the cutting blades. A plurality of first water outlet holes are evenly formed in the outer wall of the locking bolt in the circumferential direction at intervals, a second water outlet hole is formed in the small recoil scrap blocking cover, and a plurality of communicating holes communicating with the first water outlet holes and the second water outlet hole are formed in the inner wall of the cutterhead in the circumferential direction of the cutterhead in a penetrating mode. The milling cutter has the effects of reducing the abrasion of the surface of the milling cutter body, improving the stability of the blade and enhancing the chip removal performance so as to improve the production efficiency of the milling cutter disc.

Description

Technical Field

[0001] The present application relates to the technical field of milling cutters, and in particular to a novel milling cutter disc. Background Art

[0002] The milling cutter disc is used for machining planes on vertical milling machines, end milling machines or gantry milling machines. It has teeth on the end face and circumference, and can be divided into coarse teeth and fine teeth. Its structure includes three types: integral type, inlaid tooth type and indexable type.

[0003] At present, the common milling cutter disc is to install the hard aluminum alloy blade directly on the milling cutter body and then fix it with screws, etc. This is called an indexable machine clamp milling cutter. However, when the milling machine processes the workpiece by controlling the milling cutter disc, since the milling cutter disc is in a high-speed rotation state to cut the workpiece, the horizontal screws of the milling cutter disc are easy to loosen after long-term use, which will cause the blade to be unstable on the cutter body and the aluminum alloy milling cutter body to be severely worn. At the same time, the existing milling cutter disc has poor chip removal performance, which will lead to poor production efficiency and there is room for improvement. Utility Model Content

[0004] In order to reduce the wear on the surface of the milling cutter body, improve the stability of the blade and enhance the chip removal performance to improve the production efficiency of the milling cutter disc.

[0005] A novel milling cutter disc provided in this application adopts the following technical solution:

[0006] A novel milling cutter disc comprises a tool handle, a cutter disc, a cutting blade and a locking bolt. The cutter disc is plugged into the tool handle. The locking bolt coaxially penetrates the cutter disc and the tool handle and is threadedly connected to the tool handle. The locking bolt locks the cutter disc on the tool handle. The cutting blade is detachably arranged on a side of the cutter disc away from the tool handle and a plurality of the cutting blades are arranged evenly spaced around the circumference of the cutter disc.

[0007] It also includes a small recoil chip guard, wherein a plurality of small recoil chip guards are provided corresponding to the cutting blades, and the small recoil chip guards are detachably provided on the side wall of the cutter disc away from the handle and located on one side of the cutting blade edge;

[0008] The outer wall of the locking bolt is provided with a plurality of water outlet holes 1 evenly spaced around the circumferential direction, the small recoil chip guard is provided with a water outlet hole 2, and the inner wall of the cutter disc is provided with a plurality of connecting holes connecting the water outlet hole 1 and the water outlet hole 2 around the circumferential direction of the cutter disc.

[0009] Preferably, the cutter disc is provided with a mounting groove for inserting the cutting blade, and the mounting groove is a dovetail groove.

[0010] Further, a plurality of wedge-shaped grooves corresponding to and communicating with the installation grooves are formed in the outer wall of the cutter head. The wedge-shaped grooves are located on the side of the cutter head close to the tool handle. A wedge-shaped adjusting block for adjusting the cutting edge height of the cutting blade is detachably arranged in the wedge-shaped grooves.

[0011] Further, a fastening assembly for fixing the cutting blade is arranged on the outer wall of the cutter head, and a plurality of groups of the fastening assemblies are arranged corresponding to the installation grooves.

[0012] Furthermore, the fastening assembly includes a plurality of fastening screws which are threadedly connected to the outer wall of the cutter head. The plurality of fastening screws are evenly spaced along the axial direction of the cutter head. The axis of the fastening screw is inclined to the axis of the cutter head and does not intersect with the axis of the cutter head.

[0013] Preferably, a plurality of positioning pin blocks are detachably arranged on the side of the tool handle facing the cutter head, and a plurality of positioning grooves corresponding to the positioning pin blocks are formed on the side of the cutter head facing the tool handle.

[0014] Preferably, a plurality of fixing screws for fixing the locking bolts are threadedly connected to the outer wall of the tool handle.

[0015] Compared with the prior art, the novel milling cutter head of the present utility model has the following beneficial technical effects:

[0016] 1. The design adds a small anti-recoil chip guard to inhibit the wear on the surface of the cutting blade body. In addition, the locking bolt is designed with a water outlet hole, and the internal cooling effect can achieve good chip removal performance, improve production efficiency, and extend the tool life.

[0017] 2. The cutting blade installation groove in the form of a dovetail groove is suitable for high-speed cutting, prevents the cutting blade from flying out in the direction of the centrifugal force, and improves the stability of the blade.

[0018] 3. The cutting edge height is finely adjusted by the wedge-shaped adjusting block, and the adjustment range is within 0.6 mm, and the cutting edge height can be controlled within 0.002 mm.

[0019] 4. The indexable insert design enables quick replacement of the blade and post-grinding blade replacement service, improving economy and processing efficiency. Description of the Drawings

[0020] Figure 1 is an axonometric schematic diagram mainly showing the overall structure of a novel milling cutter head of the present utility model;

[0021] Figure 2 is an exploded schematic diagram mainly showing the overall structure of a novel milling cutter head of the present utility model.

[0022] Reference numerals: 1, tool shank; 2, cutter head; 3, cutting blade; 4, locking bolt; 5, insertion part; 6, insertion groove; 7, accommodation groove; 8, installation groove; 9, small anti-recoil chip guard; 10, first water outlet hole; 11, second water outlet hole; 12, communication hole; 13, wedge-shaped groove; 14, wedge-shaped adjusting block; 15, fastening assembly; 151, fastening screw; 16, positioning pin block; 17, positioning groove; 18, fixing screw. Detailed implementation manners

[0023] To make the objectives, technical solutions, and advantages of the embodiments of the present application clearer, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present application. Apparently, the described embodiments are some but not all of the embodiments of the present application. All other embodiments obtained by those of ordinary skill in the art based on the described embodiments of the present application without creative efforts shall fall within the scope of protection of the present application.

[0024] Unless otherwise defined, the technical terms or scientific terms used herein shall have the ordinary meanings understood by those of ordinary skill in the art to which the present application belongs. The words such as "a" or "one" used in the description and claims of the patent application of the present application do not indicate a limitation in quantity but mean that there is at least one.

[0025] The following will Figure 1-2 further describe the present application in detail.

[0026] The embodiments of the present application disclose a novel milling cutter head.

[0027] Referring to Figure 1 and Figure 2 , a novel milling cutter head includes a tool shank 1, a cutter head 2, a cutting blade 3, and a locking bolt 4. The cutter head 2 is inserted into the tool shank 1. An insertion part 5 is integrally formed on the tool shank 1. An insertion groove 6 that is in insertion fit with the insertion part 5 is formed on the cutter head 2. The locking bolt 4 coaxially passes through the cutter head 2 and the tool shank 1 and is threadedly connected to the tool shank 1. The locking bolt 4 locks the cutter head 2 on the tool shank 1. An accommodation groove 7 for accommodating the locking bolt 4 is coaxially formed on the side of the cutter head 2 facing away from the tool shank 1. The cutting blade 3 is detachably installed on the side of the cutter head 2 facing away from the tool shank 1 and multiple cutting blades 3 are provided. The multiple cutting blades 3 are evenly spaced in the circumferential direction of the cutter head 2.

[0028] Furthermore, an installation groove 8 for inserting and installing the cutting blade 3 is formed on the cutter head 2. The installation groove 8 is a dovetail groove. The dovetail groove-shaped installation groove 8 for the cutting blade 3 is suitable for high-speed cutting, prevents the cutting blade 3 from flying out in the direction of the centrifugal force, and improves the stability of the blade.

[0029] Referring to Figure 1 and Figure 2A new type of milling cutter disc also includes a small recoil chip guard 9. A plurality of small recoil chip guards 9 are installed corresponding to the cutting blade 3. The small recoil chip guard 9 is detachably installed on the side wall of the cutter disc 2 away from the tool handle 1 and is located on the side of the cutting edge of the cutting blade 3 through bolts. The setting of the small recoil chip guard 9 can suppress the wear on the surface of the cutting blade 3 during the cutting process, thereby increasing the service life of the cutting blade 3.

[0030] In a further embodiment, a plurality of water holes 10 are evenly spaced around the circumferential direction on the outer wall of the locking bolt 4, and the plurality of water holes 10 are interconnected. A water hole 2 11 is provided on the small recoil chip guard 9, and a plurality of connecting holes 12 connecting the water hole 10 and the water hole 2 11 are provided on the inner wall of the cutter disc 2 around the circumferential direction of the cutter disc 2. By making the locking bolt 4 have a water outlet design, a cooling effect can be achieved inside the milling cutter disc 2 while achieving good chip removal, thereby improving production efficiency.

[0031] Reference Figure 1 and Figure 2 A plurality of wedge-shaped grooves 13 corresponding to and connected with the mounting grooves 8 are provided on the outer wall of the cutter disc 2. The number of the wedge-shaped grooves 13 corresponds to the number of the mounting grooves 8. The wedge-shaped grooves 13 are located on the side of the cutter disc 2 close to the tool handle 1. A wedge-shaped adjusting block 14 for adjusting the height of the cutting edge of the cutting blade 3 is detachably fixed in the wedge-shaped groove 13 by bolts. The height of the cutting edge is finely adjusted by the wedge-shaped adjusting block 14. The adjustment range is within 0.6 mm, and the height of the cutting edge can be controlled within 0.002 mm.

[0032] Reference Figure 1 and Figure 2 In a further embodiment, a fixing assembly 15 for fixing the cutting blade 3 is installed on the outer wall of the cutter head 2, and a plurality of fixing assemblies 15 are installed corresponding to the mounting grooves 8.

[0033] Furthermore, the locking assembly 15 includes a plurality of locking screws 151, which are threadedly connected to the outer wall of the cutter disc 2 and connected to the mounting groove 8. The plurality of locking screws 151 are evenly spaced along the axial direction of the cutter disc 2. The axis of the locking screws 151 is inclined to the axis of the cutter disc 2 and does not intersect with the axis of the cutter disc 2. When installing the cutting blade 3, the cutting blade 3 is first inserted into the mounting groove 8, and then the plurality of locking screws 151 are rotated into the outer wall of the cutter disc 2 until the cutting blade 3 is pressed against the inner wall of the mounting groove 8 by the locking screws 151. At the same time, the indexable blade design allows for quick blade replacement and later grinding and blade replacement services, thereby improving economy and processing efficiency.

[0034] Reference Figure 1 and Figure 2, in a further embodiment, a plurality of positioning pin blocks 16 are detachably fixed to one side of the tool holder 1 facing the tool disc 2 by bolts. A plurality of positioning grooves 17 corresponding to the positioning pin blocks 16 are formed on one side of the tool disc 2 facing the tool holder 1. The positioning grooves 17 communicate with each other. In this embodiment, the number of the positioning pin blocks 16 is preferably two. The two positioning pin blocks 16 are evenly installed at intervals in the circumferential direction of the tool disc 2. The tool disc 2 can be quickly installed and positioned through the positioning pin blocks 16, and at the same time, the possibility of loosening between the tool disc 2 and the tool holder 1 during long-term cutting can be reduced.

[0035] Refer to Figure 1 and Figure 2 , a plurality of fixing screws 18 for fixing the locking bolts 4 are threadedly connected to the outer wall of the tool holder 1. The plurality of fixing screws 18 are evenly arranged at intervals in the circumferential direction of the tool holder 1. The plurality of fixing screws 18 fasten the locking bolts 4 in the tool holder 1 and can achieve the dynamic balance between the tool holder 1 and the locking bolts 4.

[0036] The above are all the preferred embodiments of the present application, and the protection scope of the present application is not limited thereby. Therefore, all equivalent changes made according to the structure, shape, and principle of the present application should be covered within the protection scope of the present application.

Claims

1. A new type of milling cutter disc, characterized in that: The invention comprises a tool handle (1), a tool disc (2), a cutting blade (3) and a locking bolt (4); the tool disc (2) is plugged into the tool handle (1); the locking bolt (4) is coaxially arranged through the tool disc (2) and the tool handle (1) and is threadedly connected to the tool handle (1); the locking bolt (4) locks the tool disc (2) on the tool handle (1); the cutting blade (3) is detachably arranged on a side of the tool disc (2) away from the tool handle (1) and a plurality of the cutting blades (3) are arranged evenly spaced in a circumferential direction around the tool disc (2); It also comprises a small recoil chip guard (9), a plurality of which are arranged corresponding to the cutting blade (3), and the small recoil chip guard (9) is detachably arranged on a side wall of the cutter disc (2) away from the handle (1) and located on one side of the cutting edge of the cutting blade (3); The outer wall of the locking bolt (4) is provided with a plurality of water outlet holes (10) spaced evenly in a circumferential direction, the small recoil chip guard (9) is provided with a water outlet hole (11), and the inner wall of the cutter disc (2) is provided with a plurality of connecting holes (12) connecting the water outlet hole (10) and the water outlet hole (11) in a circumferential direction of the cutter disc (2).

2. A new milling cutter disc according to claim 1, characterized in that: The cutter disc (2) is provided with a mounting groove (8) for inserting the cutting blade (3), and the mounting groove (8) is a dovetail groove.

3. A new milling cutter disc according to claim 2, characterized in that: The outer wall of the cutter disc (2) is provided with a plurality of wedge-shaped grooves (13) corresponding to and communicating with the mounting grooves (8); the wedge-shaped grooves (13) are located on a side of the cutter disc (2) close to the shank (1); and a wedge-shaped adjustment block (14) for adjusting the height of the cutting edge of the cutting blade (3) is detachably disposed in the wedge-shaped groove (13).

4. A new milling cutter disc according to claim 2, characterized in that: A fixing assembly (15) for fixing the cutting blade (3) is arranged on the outer wall of the cutter disc (2), and a plurality of sets of the fixing assembly (15) are arranged corresponding to the mounting grooves (8).

5. A new milling cutter disc according to claim 4, characterized in that: The fixing assembly (15) comprises a plurality of fixing screws (151), the fixing screws (151) being threadedly connected to the outer wall of the cutter disc (2), the plurality of fixing screws (151) being evenly spaced along the axis of the cutter disc (2), and the axis of the fixing screws (151) being inclined to the axis of the cutter disc (2) and not intersecting with the axis of the cutter disc (2).

6. A new milling cutter disc according to claim 1, characterized in that: A plurality of positioning pin blocks (16) are detachably provided on one side of the knife handle (1) facing the knife disc (2), and a plurality of positioning grooves (17) corresponding to the positioning pin blocks (16) are provided on one side of the knife disc (2) facing the knife handle (1).

7. A new milling cutter disc according to claim 1, characterized in that: A plurality of fixing screws (18) for fixing the locking bolts (4) are threadedly connected on the outer wall of the knife handle (1).

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