Circular blade and milling cutter disc

Abstract

The utility model relates to the field of milling cutter heads, in particular to a circular blade and a milling cutter head, which comprises a cutter body and a positioning table coaxially arranged on the cutter body, and at least one positioning surface is arranged on the peripheral wall of the positioning table. The milling cutter has the effect of improving the overall machining efficiency during milling cutter machining.

Description

Technical Field

[0001] This application relates to the field of milling cutter discs, and in particular to a round blade and a milling cutter disc. Background Art

[0002] The milling cutter disc is used to hold the milling blades. The cutter disc is fixed at the end of the driving rotating shaft, and the milling blades are arranged on the side or bottom of the cutter disc away from the driving rotating shaft at a certain radial distance from the rotation center line. In this way, when the cutter disc rotates driven by the driving rotating shaft, these milling blades make a circular motion around the rotation center line, and the cutting edges of the milling blades cut the surface of the metal workpiece. All components of the cutting tool are axially and radially located behind the cutting edge, so the workpiece can be contacted without obstruction.

[0003] As can be seen from the content disclosed in the utility model with the publication number CN201632844U, the outer side of the end of the milling blade on the milling cutter disc is cylindrical. During the rotation of the milling cutter disc, when the milling blade is subjected to an external force, it is easy to cause its own rotation, resulting in a decrease in the overall stability, and the operator needs to correct it irregularly, resulting in a decrease in the overall processing efficiency. Summary of the Utility Model

[0004] In order to improve the overall processing efficiency during milling, this application provides a round blade and a milling cutter disc.

[0005] In the first aspect, a round blade provided by this application adopts the following technical solution:

[0006] A round blade includes a blade body and a positioning table coaxially arranged on the blade body; at least one positioning surface is provided on the peripheral wall of the positioning table.

[0007] By adopting the above technical solution, the positioning surface is abutted against the specified cutter groove of the milling cutter seat, and the inner wall of the cutter groove can abut against the positioning surface, so as to prevent the round blade from loosening due to rotation in the direction of its own axis under external force during use, thereby reducing the number of times the operator needs to adjust the round blade irregularly during use, and improving the overall efficiency of the milling cutter during processing.

[0008] Optionally, the side of the blade body away from the positioning table is a cutting edge portion, and the flat cross-section of the cutting edge portion is formed by at least one arc and at least one wave shape connected in a closed loop.

[0009] By adopting the above technical solution, a wave-shaped edge and an arc-shaped edge can be opened on a circular blade at the same time, and rough machining and finish machining can be completed by one blade at the same time. When it is necessary to switch between rough machining and finish machining, only the corresponding cutting edge surface and positioning surface of the blade need to be switched.

[0010] Optionally, at least one groove is recessed in the peripheral wall of the positioning table, and the recessed arc of the groove coincides with the arc of the wave valley in the flat section of the blade part.

[0011] By adopting the above technical solution, a groove is provided on the peripheral wall of the positioning table to increase the blade thickness at the valley peaks of the wavy blade, thereby increasing the service life of the circular blade.

[0012] Optionally, the peripheral walls of the positioning table and the outer edge of the tool body are both inclined towards the direction close to their own central axes, and the maximum outer diameter of the positioning table is smaller than the maximum outer diameter of the tool body.

[0013] By adopting the above technical solution, the overall shape of the circular blade is conical, with a smaller diameter at the positioning table and a larger diameter at the tool body, which is convenient for exposing only the part of the tool body of the circular blade outside the tool holder to perform milling, turning and other operations.

[0014] Optionally, the center point of the positioning surface coincides with the intersection point of the adjacent arc and the wavy shape in the flat section of the blade part.

[0015] By adopting the above technical solution, it is convenient for the operator to adjust the fit between different positioning surfaces and the tool holder to realize the milling, turning and other operations of the tool body with different blade types.

[0016] In a second aspect, the present application provides a milling cutter head adopting the following technical solution:

[0017] A milling cutter head includes a tool shank and a plurality of mounting parts protruding from the bottom of the tool shank. A cutter groove for mounting a circular blade is recessed in the mounting part; an anti-rotation fitting surface is provided on the inner wall of the cutter groove; the anti-rotation fitting surface can be pressed and fitted with the positioning surface.

[0018] By adopting the above technical solution, the positioning surface on the circular blade is fitted with the anti-rotation fitting surface on the tool holder, thereby further improving the installation stability between the circular blade and the mounting part.

[0019] Optionally, a water outlet hole is provided between adjacent mounting parts, and the water outlet direction of the water outlet hole is set towards the blade part.

[0020] By adopting the above technical solution, water can be supplied to the contact position between the milling cutter and the object to be processed. On the one hand, the dust prevention effect can be improved, and on the other hand, the processing temperature can be reduced.

[0021] Optionally, it further includes a reverse screw. A positioning through hole is coaxially and penetratingly provided on the tool body, and the positioning through hole penetrates through the positioning table. A locking rod is detachably connected to the tool body, and the positioning through hole allows the locking rod to be threadedly connected and pass through. A plurality of elastic anti - detachment hanging pieces are arranged around the bottom end of the locking rod. A convex portion is protrudingly provided on the side wall of one end of the anti - detachment hanging piece away from the locking rod. A locking thread for threadedly connecting the reverse screw is provided on the inner edge side of the plurality of anti - detachment hanging pieces.

[0022] By adopting the above - mentioned technical solution, when installing the round blade, the anti - detachment hanging piece section of the locking rod is buckled into the positioning through hole. The locking threads between the inner edge sides of the plurality of anti - detachment hanging pieces form a threaded hole. When the reverse screw is screwed into the threaded hole, the outer edge side of the anti - detachment hanging piece is pressed against the inner wall of the positioning through hole, and the convex portion abuts against the side wall of the positioning table, thereby preventing the round blade from detaching from the cutter groove and further improving the installation stability of the round blade.

[0023] In summary, the present application includes at least one of the following beneficial technical effects:

[0024] 1. The positioning surface is abutted against the specified cutter groove of the milling cutter holder, and the positioning surface can be abutted against the inner wall of the cutter groove, thereby preventing the round blade from loosening due to external force causing it to rotate in the direction of its own axis during use.

[0025] 2. By simultaneously providing a wavy edge shape and an arc edge shape on a circular blade, rough machining and finish machining can be completed by one blade. When it is necessary to switch between rough machining and finish machining, only the corresponding cutting edge surface and positioning surface of the blade need to be switched.

[0026] 3. When installing the round blade, the anti - detachment hanging piece section of the locking rod is buckled into the positioning through hole. The locking threads between the inner edge sides of the plurality of anti - detachment hanging pieces form a threaded hole. When the reverse screw is screwed into the threaded hole, the outer edge side of the anti - detachment hanging piece is pressed against the inner wall of the positioning through hole, and the convex portion abuts against the side wall of the positioning table, thereby preventing the round blade from detaching from the cutter groove and further improving the installation stability of the round blade. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 is the overall structural schematic diagram of a round blade of the present application;

[0028] Figure 2 is the overall structural schematic diagram of a milling cutter head of the present application;

[0029] Figure 3 is the exploded schematic diagram of a milling cutter head of the present application.

[0030] Explanation of the reference numerals: 1. blade body; 11. positioning through hole; 2. positioning platform; 21. positioning surface; 22. groove; 3. blade portion; 4. handle; 5. mounting portion; 51. cutting groove; 52. anti-rotation veneer; 6. reverse screw; 7. locking rod; 71. anti-slip hanging plate; 72. convex portion. DETAILED DESCRIPTION

[0031] The following is combined with Figures 1 - 3 This application is described in further detail.

[0032] The embodiment of the present application discloses a circular blade.

[0033] Reference Figure 1 A circular blade includes an integrally arranged blade body 1 and a positioning platform 2; the blade body 1 and the positioning platform 2 are arranged coaxially. It is worth noting that the outer peripheral walls of the positioning platform 2 and the blade body 1 are inclined toward the direction close to their own central axis, and the maximum outer peripheral diameter of the positioning platform 2 is smaller than the maximum outer peripheral diameter of the blade body 1.

[0034] The side of the blade body 1 away from the positioning platform 2 is a blade portion 3, and the plane section of the blade portion 3 is formed by connecting at least one arc and at least one wavy closed loop. In this embodiment, there are two arcs and two wavy shapes and they are staggered.

[0035] At least one positioning surface 21 is also provided on the peripheral wall of the positioning table 2. In the present embodiment, four positioning surfaces 21 are provided, and the center points of the four positioning surfaces 21 coincide with the intersection points of two groups of adjacent arcs and waves in the plane section of the blade portion 3. By simultaneously opening a wavy blade shape and an arc blade shape on a circular blade, rough machining and fine machining can be completed simultaneously by one blade, making it convenient for the operator to adjust the fit between different positioning surfaces 21 and the tool holder, so as to realize milling, turning and other actions of the tool body 1 with different blade shapes.

[0036] The peripheral wall of the positioning platform 2 is concavely provided with at least one groove 22, and the concave curvature of the groove 22 coincides with the curvature of the wavy trough in the plane section of the blade portion 3; the groove 22 is provided on the peripheral wall of the positioning platform 2 to increase the blade thickness at the valley peak of the wavy blade, thereby increasing the service life of the circular blade.

[0037] The implementation principle of a circular blade in an embodiment of the present application is: the positioning surface 21 is abutted against the designated tool groove of the milling cutter seat, and the positioning surface 21 can be abutted against the inner wall of the tool groove, thereby preventing the circular blade from loosening due to the external force causing it to rotate in the direction of its own axis during use; when it is necessary to switch between rough and fine machining, it is only necessary to switch the corresponding cutting edge surface and positioning surface 21 of the blade.

[0038] Based on the same design concept, the present application also discloses a milling cutter disc.

[0039] Reference Figure 2 andFigure 3 , a milling cutter head, comprising a tool shank 4 mounted on the main body of a processing device, a plurality of mounting portions 5 circumferentially protruding from the other end of the tool shank 4, and a reverse screw 6 detachably connected to the tool shank 4. A positioning through hole 11 is formed through the round blade (positioning table 2, tool body 1), and a locking rod 7 is threadedly connected in the positioning through hole 11. One end of the locking rod 7 passing through the positioning through hole 11 is available for detachably connecting to the reverse screw 6.

[0040] Further, the plurality of mounting portions 5 are equidistantly circumferentially distributed around the central axis of the tool shank 4, and there is a certain interval between adjacent mounting portions 5. A water outlet hole is provided one-to-one within the interval between adjacent mounting portions 5.

[0041] A cutter groove 51 for mounting the round blade is formed on the side wall of the mounting portion 5, and an anti-rotation facing 52 is provided on the inner wall of the cutter groove 51; the anti-rotation facing 52 is available for the positioning surface 21 to press and fit; the water outlet direction of the water outlet holes within the same interval is directly opposite to the cutter groove 51 / the cutting edge portion 3; so as to supply an appropriate amount of water towards the processed article when water is discharged.

[0042] A plurality of elastic anti-detachment tabs 71 are circumferentially provided at the bottom end of the locking rod 7. A convex portion 72 protrudes from the side wall of one end of the anti-detachment tab 71 away from the locking rod 7, and the outer edge side of the convex portion 72 is chamfered to facilitate detachment from the positioning through hole 11. A locking thread for threadedly connecting the reverse screw 6 is provided on the inner edge side of the plurality of anti-detachment tabs 71.

[0043] The implementation principle of a milling cutter head in an embodiment of the present application is as follows: When the positioning table 2 portion of the round blade is buckled into the cutter groove 51, and the corresponding positioning surface 21 and the anti-rotation facing 52 are abutted, then one end of the anti-detachment tab 71 of the locking rod 7 is buckled into the positioning through hole 11, and the locking threads between the inner edge sides of the plurality of anti-detachment tabs 71 form a threaded hole. When the reverse screw 6 is screwed into the threaded hole, the outer edge side of the anti-detachment tab 71 is pressed against the inner wall of the positioning through hole 11, and the convex portion 72 abuts against the side wall of the positioning table 2, thereby preventing the round blade from detaching from the cutter groove 51 and further improving the installation stability of the round blade.

[0044] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited accordingly. 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 circular blade, characterized in that: It comprises a knife body (1) and a positioning platform (2) coaxially arranged on the knife body (1); at least one positioning surface (21) is arranged on the peripheral wall of the positioning platform (2).

2. The circular blade according to claim 1, wherein: The side of the blade body (1) away from the positioning platform (2) is a blade portion (3), and the plane cross section of the blade portion (3) is formed by connecting at least one arc-shaped and at least one wavy closed loop.

3. A circular blade according to claim 2, wherein: At least one groove (22) is concavely arranged on the peripheral wall of the positioning platform (2), and the concave curvature of the groove (22) coincides with the curvature of the wavy trough in the plane section of the blade portion (3).

4. A circular blade according to claim 2, wherein: The outer peripheral walls of the positioning platform (2) and the knife body (1) are both inclined in a direction close to their own central axis, and the maximum outer peripheral diameter of the positioning platform (2) is smaller than the maximum outer peripheral diameter of the knife body (1).

5. A circular blade according to claim 4, characterized in that: The center point of the positioning surface (21) coincides with the intersection point of adjacent arcs and waves in the plane section of the blade portion (3).

6. A milling cutter head, characterized in that: The invention comprises a knife handle (4), and a plurality of mounting parts (5) protruding from the bottom of the knife handle (4); the mounting part (5) is provided with a knife groove (51) for mounting a circular blade as claimed in any one of claims 1 to 5; the inner wall of the knife groove (51) is provided with an anti-rotation surface (52); the anti-rotation surface (52) can be pressed and fitted against the positioning surface (21).

7. A milling cutter head according to claim 6, characterized in that: Water outlet holes are arranged between adjacent mounting portions (5), and the water outlet direction of the water outlet holes is arranged toward the blade portion (3).

8. The milling cutter head according to claim 7, characterized in that: It also comprises an inverted screw (6), a positioning through hole (11) coaxially penetrating the knife body (1), and the positioning through hole (11) penetrating the positioning platform (2); a locking rod (7) is detachably connected to the knife body (1), and the positioning through hole (11) allows the locking rod (7) to be threadedly connected and pass through; a plurality of elastic anti-detachment hanging pieces (71) are arranged around the bottom end of the locking rod (7), and a convex portion (72) is protruding from the side wall of one end of the anti-detachment hanging piece (71) away from the locking rod (7), and a locking thread for threading the inverted screw (6) is arranged on the inner edge side of the plurality of anti-detachment hanging pieces (71).

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