Radial adjustable three-edge milling cutter disc

Abstract

The utility model relates to the technical field of three-edge milling cutters, in particular to a radial adjustable three-edge milling cutter disc which comprises a cutter body, a shaft hole is formed in the middle of the cutter body, a mounting groove is formed in the side edge of the cutter body, positioning teeth are arranged on one side of the mounting groove, and a cutter holder and an extrusion block are arranged on the inner side of the mounting groove. Clamping teeth matched with the positioning teeth are arranged on one side of the tool apron, and an adjusting gasket is arranged between the extrusion block and the tool apron; the two side faces of the extrusion block are obliquely arranged, a mounting screw is arranged on the extrusion block in a penetrating mode, a three-edge blade is detachably arranged on one side of the tool apron, a protruding block is arranged on one side of the three-edge blade, and a gasket clamping groove is formed in the protruding block. The tool apron and the installation groove are fixed through the positioning teeth, when radial adjustment is needed, the position of the tool apron can be adjusted, remeshing is conducted through the clamping teeth, fixing is conducted in cooperation with the extrusion block and the adjusting gasket, and installation reliability and safety are effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of three-face milling cutters, in particular to a radially adjustable three-face milling cutter disc. Background Art

[0002] Three-edge milling cutters are often used for milling steps and grooves and have been widely used in the field of mechanical processing. However, due to the manufacturing and installation accuracy errors of blades and accessories, it is difficult to achieve high accuracy in radial dimensions.

[0003] Low radial dimensional accuracy means inconsistent tool tip height, large runout between blades, reduced surface quality of the machined groove bottom, and shortened blade life. In the prior art, radial adjustment accuracy is not high, and fixation is unreliable, which can easily cause the blade to loosen, affecting normal processing and even posing safety hazards. Utility Model Content

[0004] The utility model aims to solve the shortcomings in the prior art and proposes a radially adjustable three-face milling cutter disc.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A radially adjustable three-sided and faceted milling cutter disc comprises a cutter body, an axial hole is provided in the middle of the cutter body, a mounting groove is provided on the side of the cutter body, a positioning tooth is provided on one side of the mounting groove, a cutter seat and an extrusion block are provided on the inner side of the mounting groove, a clamping tooth matched with the positioning tooth is provided on one side of the cutter seat, an adjustment gasket is provided between the extrusion block and the cutter seat; the two side surfaces of the extrusion block are inclined, the extrusion block is penetrated by mounting screws, a three-sided and faceted blade is detachably provided on one side of the cutter seat, a protrusion is provided on one side of the three-sided and faceted blade, and a gasket clamping groove is provided on the protrusion.

[0007] Preferably, a keyway is provided on the inner side of the shaft hole, and heat dissipation holes are provided on both sides of the knife body.

[0008] Preferably, the knife seat and the mounting groove are in meshing contact via positioning teeth and latching teeth.

[0009] Preferably, the extrusion block is detachably connected to the mounting groove by means of mounting screws, and an adjustment gap adapted to the extrusion block is provided at the bottom of the mounting groove.

[0010] Preferably, the knife seat and the mounting groove are respectively provided with inclined surfaces adapted to the two side surfaces of the extrusion block.

[0011] Preferably, a mounting groove adapted to the protrusion is provided on the knife seat, a filling gasket is provided in the gasket slot, and the three-edged blade is connected to the knife seat by a screw.

[0012] The beneficial effects of the utility model are:

[0013] Compared with the prior art, the tool holder of the utility model is fixed to the mounting groove by positioning teeth. When radial adjustment is required, the position of the tool holder can be adjusted, re-engaged by the latch teeth, and fixed with the extrusion block and the adjustment gasket, thereby effectively improving the installation reliability and safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 A three-dimensional structural schematic diagram of a radially adjustable three-face milling cutter disc proposed by the utility model;

[0015] Figure 2 for Figure 1 A local enlarged schematic diagram of the middle A;

[0016] Figure 3 The utility model is a schematic diagram of the structure of a three-sided and faceted blade of a radially adjustable three-sided and faceted milling cutter disc.

[0017] In the figure: 1, knife body; 11, shaft hole; 2, positioning teeth; 3, knife seat; 31, adjustment gasket; 4, three-edged blade; 41, screw; 42, bump; 43, gasket slot; 5, extrusion block; 51, mounting screw. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0019] Reference Figure 1-3 , a radially adjustable three-face milling cutter disc, comprising a cutter body 1, an axial hole 11 is provided in the middle of the cutter body 1, a keyway is provided inside the axial hole 11, which is convenient for connecting with the transmission shaft, heat dissipation holes are provided on both sides of the cutter body 1 to improve the heat dissipation effect of the cutter body 1, a mounting groove is provided on the side of the cutter body 1, a positioning tooth 2 is provided on one side of the mounting groove, a cutter seat 3 and an extrusion block 5 are provided on the inner side of the mounting groove, a clamping tooth adapted to the positioning tooth 2 is provided on one side of the cutter seat 3, the smaller the positioning tooth 2 and the clamping tooth are, the higher the adjustment accuracy is, but the fixing strength will be reduced, and heat treatment is required to improve the strength and surface hardness of the positioning tooth 2 and the clamping tooth, the cutter seat 3 and the mounting groove are engaged with each other through the positioning tooth 2 and the clamping tooth, when radial adjustment is performed, the cutter seat 3 is moved to re-engage with the positioning tooth 2 on the mounting groove for fixing, an adjusting gasket 31 is provided between the extrusion block 5 and the cutter seat 3, after radial adjustment, the adjusting gasket 31 is replaced to ensure reliable installation and fixation;

[0020] The two sides of the extrusion block 5 are inclined, and the knife seat 3 and the mounting groove are respectively provided with inclined surfaces adapted to the two sides of the extrusion block 5. The extrusion block 5 presses the knife seat 3 against the positioning tooth 2. The extrusion block 5 is penetrated by a mounting screw 51. The extrusion block 5 is detachably connected to the mounting groove through the mounting screw 51. The bottom of the mounting groove is provided with an adjustment gap adapted to the extrusion block 5, so as to facilitate the adjustment of the pressing force between the extrusion block 5 and the knife seat 3.

[0021] A three-edged blade 4 is detachably provided on one side of the knife holder 3. The three-edged blade 4 is an indexable blade. After being used for a period of time, the position of the three-edged blade 4 can be rotated and continued to be used. A protrusion 42 is provided on one side of the three-edged blade 4, and a gasket slot 43 is provided on the protrusion 42. A mounting groove adapted to the protrusion 42 is opened on the knife holder 3. After the three-edged blade 4 has been used for a period of time, the cutting edge of the three-edged blade 4 is worn, which affects the positioning of the three-edged blade 4 after the indexing. The three-edged blade 4 is positioned by positioning the protrusion 42 with the mounting slot to improve the installation reliability of the three-edged blade 4. A filling gasket is provided in the gasket slot 43 to facilitate adjustment of the assembly gap and improve installation accuracy. The three-edged blade 4 is connected to the knife holder 3 by a screw 41.

[0022] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A radially adjustable three-edge milling cutter disc, comprising a cutter body (1), characterized in that: An axial hole (11) is provided in the middle of the knife body (1), a mounting groove is provided on the side of the knife body (1), a positioning tooth (2) is provided on one side of the mounting groove, a knife seat (3) and an extrusion block (5) are provided on the inner side of the mounting groove, a locking tooth matched with the positioning tooth (2) is provided on one side of the knife seat (3), and an adjustment gasket (31) is provided between the extrusion block (5) and the knife seat (3); The two side surfaces of the extrusion block (5) are arranged at an angle, and a mounting screw (51) is provided through the extrusion block (5). A three-sided blade (4) is detachably provided on one side of the blade holder (3), and a protrusion (42) is provided on one side of the three-sided blade (4), and a gasket slot (43) is provided on the protrusion (42).

2. A radially adjustable three-edge milling cutter disc according to claim 1, characterized in that: A keyway is provided inside the shaft hole (11), and heat dissipation holes are provided on both sides of the knife body (1).

3. A radially adjustable three-edge milling cutter disc according to claim 1, characterized in that: The knife seat (3) is in meshing contact with the installation groove via the positioning teeth (2) and the latching teeth.

4. A radially adjustable three-edge milling cutter disc according to claim 1, characterized in that: The extrusion block (5) is detachably connected to the mounting groove via a mounting screw (51), and an adjustment gap adapted to the extrusion block (5) is provided at the bottom of the mounting groove.

5. The radially adjustable three-face milling cutter disc according to claim 1, characterized in that: The knife seat (3) and the mounting groove are respectively provided with inclined surfaces adapted to the two side surfaces of the extrusion block (5).

6. A radially adjustable three-face milling cutter disc according to claim 1, characterized in that: The knife seat (3) is provided with a mounting groove adapted to the protrusion (42), a filling gasket is provided in the gasket slot (43), and the three-edged blade (4) is connected to the knife seat (3) via a screw (41).

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