Indexable high-precision three-edge milling cutter disc

Abstract

The utility model relates to the technical field of three-edge milling cutters, in particular to an indexable high-precision three-edge milling cutter disc which comprises a cutter disc body, a mounting groove is formed in the cutter disc body, a wedge block and a cutter holder are arranged in the mounting groove, the wedge block is connected with the cutter disc body through a countersunk bolt, and clamping teeth are arranged between the mounting groove and the cutter holder. A wedge block is arranged on the cutter head, the side face of the wedge block abuts against the cutter holder, a three-edge milling cutter is arranged on the cutter holder, a clamping groove is formed in the cutter holder and matched with the three-edge milling cutter, air cavities are formed in the two sides of the cutter head, and an exhaust groove is formed in one side of each air cavity and corresponds to the three-edge milling cutter. The air cavities are formed in the two sides of the cutter head and used for pushing air or cutting fluid to flow, it is guaranteed that the three-edge milling cutter is sufficiently cooled, cutting reliability and stability are improved, machining precision is guaranteed, and meanwhile the service life of the three-edge milling cutter head is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of three-sided and face milling cutters, in particular to an indexable high-precision three-sided and face milling cutter disc. Background Art

[0002] The three-sided milling cutter is a standard machine tool. The main cutting edge of the three-sided milling cutter is distributed on the cylindrical surface of the milling cutter, and the secondary cutting edges are distributed on the two end surfaces. When using, the cutter is installed on the tool bar of the horizontal bed or milling machine. It is generally used for milling grooves and steps. The three edges of the three-sided milling cutter have a back angle, the edges are sharp, and the cutting is light. The indexable tool is a tool that clamps the polygonal blade that can be indexed to the tool bar or tool body by mechanical methods. In the cutting process, when one edge is blunted, the blade is indexed and the other edge is used. This kind of blade does not need to be re-sharpened after being blunted.

[0003] This indexable insert is not made of the same material as the cutter body and is positioned by screws and slots. During processing, it is deformed by heat and the fixed position of the insert is easily offset, affecting the processing accuracy. Therefore, in the prior art, the processing accuracy of indexable three-sided milling cutters is limited, the heat dissipation effect is poor, and there are disadvantages in use. Utility Model Content

[0004] The utility model aims to solve the shortcomings in the prior art and proposes an indexable high-precision three-face milling cutter disc.

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

[0006] A high-precision indexable three-sided and face milling cutter disc comprises a cutter disc, a mounting groove is provided on the cutter disc, a wedge block and a cutter seat are provided in the mounting groove, the wedge block is connected to the cutter disc by a countersunk bolt, a latch tooth is provided between the mounting groove and the cutter seat, the side surface of the wedge block abuts against the cutter seat, a three-sided and face milling cutter is provided on the cutter seat, a latch groove is provided on the cutter seat, the latch groove is adapted to the three-sided and face milling cutter, air cavities are provided on both sides of the cutter disc, an exhaust groove is provided on one side of the air cavity, and the exhaust groove is arranged corresponding to the three-sided and face milling cutter.

[0007] Preferably, the side wall of the mounting groove is matched with the wedge block, and an adjustment gap is provided between the bottom wall of the mounting groove and the wedge block.

[0008] Preferably, the three-face milling cutters are provided in a plurality of groups, and the plurality of groups of the three-face milling cutters are divided into left-side milling cutters and right-side milling cutters, and the left-side milling cutters and the right-side milling cutters are alternately arranged on the side curved surface of the cutter disc.

[0009] Preferably, the three-edge milling cutter is detachably connected to the cutter holder by screws, and the cutter holder is provided with a plurality of groups, which are respectively arranged corresponding to the left-side milling cutter and the right-side milling cutter.

[0010] Preferably, the air cavities are provided in a plurality of groups and are evenly arranged on the end surfaces of both sides of the cutter disc, and air cavity walls are provided between the plurality of groups of air cavities.

[0011] Preferably, a ventilation groove corresponding to the exhaust groove is provided on one side of the wedge block and the mounting groove.

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

[0013] Compared with the prior art, the utility model has air cavities on both sides of the cutter disc for promoting the flow of air or cutting fluid, ensuring sufficient cooling of the three-sided and face milling cutter, improving cutting reliability and stability, ensuring processing accuracy, and extending the service life of the three-sided and face milling cutter disc. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a three-dimensional structural schematic diagram from the first perspective of a high-precision indexable three-sided milling cutter disc proposed by the utility model;

[0015] Figure 2 A schematic diagram of the three-dimensional structure from a second perspective of an indexable high-precision three-sided milling cutter disc proposed by the utility model;

[0016] Figure 3 for Figure 1 A local enlarged schematic diagram of point A in the middle.

[0017] In the figure: 1. cutter disc; 2. air cavity; 3. wedge; 4. face and side milling cutter; 5. cutter holder; 6. countersunk bolt; 7. exhaust groove. 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 high-precision three-face milling cutter disc with indexable position, comprising a cutter disc 1, a mounting groove is provided on the cutter disc 1, a wedge block 3 and a cutter seat 5 are provided in the mounting groove, the mounting groove is used to accommodate the mounting wedge block 3 and the cutter seat 5, the side wall of the mounting groove is inclined at a certain angle, and is adapted to the wedge block 3, so as to facilitate the pressing of the cutter seat 5, an adjustment gap is provided between the bottom wall of the mounting groove and the wedge block 3, the wedge block 3 is connected to the cutter disc 1 by a countersunk bolt 6, and the size of the adjustment gap is changed by the countersunk bolt 6;

[0020] A clamping tooth is provided between the mounting groove and the tool holder 5 to fix the tool holder 5. The side surface of the wedge block 3 is against the tool holder 5. The wedge block 3 presses the tool holder 5 against the clamping tooth of the mounting groove through the inclined surface to improve the fixing reliability. A three-face milling cutter 4 is detachably provided on the tool holder 5. A clamping groove is provided on the tool holder 5. The clamping groove is adapted to the three-face milling cutter 4 to ensure stable fixing of the three-face milling cutter 4. The three-face milling cutter 4 is provided with multiple groups. The multiple groups of three-face milling cutters 4 are divided into left-side milling cutters and right-side milling cutters. The left-side milling cutter and the right-side milling cutter are alternately arranged on the side curved surface of the cutter disc 1 to form three cutting edges. The three-face milling cutter 4 is detachably connected to the tool holder 5 by screws. The blade can be detachably rotated to improve the service life of the three-face milling cutter 4. The tool holder 5 is provided with multiple groups, which are respectively arranged corresponding to the left-side milling cutter and the right-side milling cutter to ensure reliable processing.

[0021] Air cavities 2 are provided on both sides of the cutter disc 1, and exhaust grooves 7 are provided on one side of the air cavity 2. The exhaust grooves 7 are arranged corresponding to the three-edge milling cutter 4. There are multiple groups of air cavities 2, which are evenly arranged on the end faces of both sides of the cutter disc 1. Air cavity walls are provided between the multiple groups of air cavities 2. Ventilation grooves corresponding to the exhaust grooves 7 are provided on one side of the wedge block 3 and the mounting groove. When the cutter disc 1 rotates, air flow is driven and sent to the three-edge milling cutter 4 through the exhaust grooves 7 for cooling and chip cleaning, thereby improving processing reliability.

[0022] Working principle:

[0023] The left milling cutter and the right milling cutter are alternately staggered and placed on the cutter disc 1, and fixed by the cutter seat 5. The cutter seat 5 is clamped on the cutter disc 1 by the wedge block 3. When the cutter disc 1 rotates, the pipeline sprays cutting fluid to improve the processing reliability. The air cavity 2 throws out the air or cutting fluid to the contact point between the three-edge milling cutter 4 and the workpiece for cooling or chip cleaning, thereby improving the processing reliability and service life of the tool;

[0024] When the face and face milling cutter 4 is worn, the face and face milling cutter 4 is removed and rotated by an angle, and the unworn cutting edge is replaced for processing, thereby increasing the service life of the face and face milling cutter 4.

[0025] 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 high-precision three-edge milling cutter disc with indexable position, comprising a cutter disc (1), characterized in that: The cutter disc (1) is provided with a mounting groove, a wedge block (3) and a cutter seat (5) are provided in the mounting groove, the wedge block (3) is connected to the cutter disc (1) by a countersunk bolt (6), a latching tooth is provided between the mounting groove and the cutter seat (5), the side surface of the wedge block (3) abuts against the cutter seat (5), a three-sided milling cutter (4) is provided on the cutter seat (5), a latching groove is provided on the cutter seat (5), the latching groove is adapted to the three-sided milling cutter (4), air cavities (2) are provided on both sides of the cutter disc (1), an exhaust groove (7) is provided on one side of the air cavity (2), and the exhaust groove (7) is arranged corresponding to the three-sided milling cutter (4).

2. The high-precision three-edge milling cutter disc according to claim 1, characterized in that: The side wall of the installation groove is matched with the wedge block (3), and an adjustment gap is provided between the bottom wall of the installation groove and the wedge block (3).

3. The high-precision three-edge milling cutter disc according to claim 1, characterized in that: The three-edge milling cutters (4) are provided in multiple groups, and the multiple groups of the three-edge milling cutters (4) are divided into left-side milling cutters and right-side milling cutters. The left-side milling cutters and the right-side milling cutters are alternately arranged on the side curved surface of the cutter disc (1).

4. The high-precision three-edge milling cutter disc according to claim 3, characterized in that: The three-edge milling cutter (4) is detachably connected to the cutter holder (5) via screws. The cutter holder (5) is provided with a plurality of groups, which are respectively arranged corresponding to the left-side milling cutter and the right-side milling cutter.

5. The high-precision three-edge milling cutter disc according to claim 1, characterized in that: The air cavities (2) are provided in multiple groups and are evenly arranged on the end surfaces of both sides of the cutter disc (1), and air cavity walls are provided between the multiple groups of air cavities (2).

6. The high-precision three-edge milling cutter disc according to claim 5, characterized in that: The wedge block (3) and one side of the mounting groove are provided with a ventilation groove corresponding to the exhaust groove (7).

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