High-precision and high-stability plane milling cutter

Abstract

The utility model discloses a high-precision and high-stability plane milling cutter, which relates to the technical field of milling cutters, and comprises a cutter head and a plurality of blades, and the plurality of blades are arranged on the annular side of the end part of the cutter head; mounting grooves are formed in the positions, at the bottoms of the blades, of the cutter head, adjusting blocks are arranged at the mounting grooves and fixed to the mounting grooves through positioning screws, and supporting parts are arranged on the horizontal sides of the adjusting blocks; the adjusting block and the supporting part are asymmetrically designed, the rotating force of the positioning screw is supported by the cutter head, and the position of the adjusting block is stable; the cutter head is matched with the blade through the bearing surface to clamp the supporting part, and the force for locking the blade is directly transferred to the supporting part and then transferred to the cutter head through the supporting part, so that the positioning screw does not bear redundant force, the machining is more accurate and more stable, and the machining effect is better.

Description

Technical Field

[0001] This utility model relates to the field of milling cutter technology, specifically to a high-precision, high-stability planar milling cutter. Background Technology

[0002] A milling cutter is a rotating cutting tool with one or more cutting teeth used for milling operations. During operation, the cutting teeth sequentially and intermittently remove 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.

[0003] During milling, the cutting insert will experience axial runout. To minimize axial runout, an adjustment block is installed at the bottom of the cutting insert to support it.

[0004] The adjusting blocks of most existing face milling cutters are like... Figure 1 As shown, the adjustment block extends upwards on both sides to support the bottom sides of the insert. In other words, the adjustment block is symmetrical in shape. During installation, point A of the adjustment block will be slightly raised due to machining errors and the force of screw rotation, affecting the overall adjustment accuracy. Moreover, it makes the support force of points A and B on the insert unequal, which will be unstable during actual cutting, and the cutting force will be applied to the screw. Therefore, a high-precision and high-stability face milling cutter is required. Utility Model Content

[0005] To address the problems existing in the prior art, this utility model solves the problem using the following technical structure.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A high-precision, high-stability planar milling cutter includes: a cutter head and multiple inserts, wherein the multiple inserts are disposed on the end ring side of the cutter head;

[0008] The cutter head has mounting grooves at the bottom of multiple blades, and an adjustment block is provided at the mounting groove. The adjustment block is fixed to the mounting groove by positioning screws. A support part is provided on the horizontal side of the adjustment block. The top of the support part contacts the bottom of the blade. The cutter head has a receiving surface at the bottom of several support parts.

[0009] Its further feature is that,

[0010] The support portion is formed by extending upward at an angle from the horizontal side of the adjusting block.

[0011] The bottom surface of the support extends upward at an angle from one side of the adjusting block toward the side away from the adjusting block, and the receiving surface is adapted to the bottom surface of the support.

[0012] The contact surface between the blade and the support extends upwards at an angle from one side of the adjusting block toward the side away from the adjusting block.

[0013] The blade is made of high-speed steel or cemented carbide.

[0014] The cutter head has several cutter grooves on its end ring side, which are located above the mounting groove, and the blades are located in the cutter grooves.

[0015] The blade is fixed in the blade groove by mounting screws.

[0016] The adjusting block and the support are integrally machined.

[0017] The adjusting block and support are made of hard alloy.

[0018] The blades are provided in eight parts.

[0019] The above-described structure of this utility model can achieve the following beneficial effects:

[0020] By setting an adjusting block and supporting the bottom of the blade with a support on the horizontal side of the adjusting block, and providing support at the bottom of the support with a bearing surface, the adjusting block and support use an asymmetrical design. The rotational force of the positioning screw is supported by the cutter head, and the position of the adjusting block is stable. The cutter head cooperates with the blade through the bearing surface to clamp the support. The locking force of the blade is directly transferred to the support, and then from the support to the cutter head. Therefore, the positioning screw does not bear excessive force, making the machining more precise and stable, and the machining effect better. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of the related technology in this embodiment;

[0022] Figure 2 This is a schematic diagram of the structure of this embodiment.

[0023] In the figure: 1. Cutter head; 11. Receiving surface; 2. Blade; 3. Adjusting block; 31. Support. Detailed Implementation

[0024] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention 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 invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.

[0025] It should be noted that the terms "comprising" and "having" and any variations thereof in the specification, claims and accompanying drawings of this utility model are intended to cover non-exclusive inclusion. For example, a process, method, apparatus, product or device that includes a series of steps or units is not necessarily limited to those steps or units that are explicitly listed, but may include other steps or units that are not explicitly listed or that are inherent to such processes, methods, products or devices.

[0026] The following is in conjunction with the appendix Figure 2 This application will be described in further detail.

[0027] refer to Figure 1-2 The high-precision, high-stability planar milling cutter shown includes: a cutter head 1 and multiple inserts 2, all of which are disposed on the end ring side of the cutter head 1;

[0028] The cutter head 1 has mounting grooves at the bottom of multiple blades 2. An adjusting block 3 is provided at the mounting groove. The adjusting block 3 is fixed to the mounting groove by positioning screws. A support part 31 is provided on the horizontal side of the adjusting block 3. The top of the support part 31 contacts the bottom of the blade 2. A receiving surface 11 is provided at the bottom of several support parts 31.

[0029] Based on the above structure, by setting an adjusting block 3, and by supporting the bottom of the blade 2 through the support part 31 on the horizontal side of the adjusting block 3, and by setting a bearing surface 11 at the bottom of the support part 31 to support the bottom of the support part 31, the adjusting block 3 and the support part 31 adopt an asymmetrical design (the whole is flag-shaped). The rotational force of the positioning screw is supported by the cutter head 1, and the position of the adjusting block 3 is stable. The cutter head 1 cooperates with the blade 2 through the bearing surface 11 to clamp the support part 31. The locking force of the blade 2 is directly transferred to the support part 31, and then from the support part 31 to the cutter head 1. Therefore, the positioning screw will not bear excessive force, making the processing more accurate and stable, and the processing effect better.

[0030] like Figure 2 As shown, the support part 31 is specifically formed by extending upward at an incline from the horizontal side of the adjusting block 3, and the bottom surface of the support part 31 extends upward at an incline from one side of the adjusting block 3 to the side away from the adjusting block 3. The receiving surface 11 is adapted to the bottom surface of the support part 31 to support the support part 31, so that the support part 31 can transmit the force from the blade 2 to the cutter head 1.

[0031] Further optimizations include, for example Figure 2 As shown, the contact surface between the blade 2 and the support 31 extends upward at an angle from one side of the adjusting block 3 to the side away from the adjusting block 3. In other words, the contact surface between the blade 2 and the support 31 extends upward at an angle in the cutting direction of the blade 2, forming a negative angle positioning for the blade 2 and improving stability.

[0032] Further optimization involves the blade 2 being made of high-speed steel or cemented carbide, while the adjusting block 3 and the support 31 are made of cemented carbide, and the adjusting block 3 and the support 31 are integrally machined to improve stability and reduce production efficiency.

[0033] Further optimization involves the following installation method for the blade 2: several blade grooves are provided on the end ring side of the blade disc 1, the blade grooves are located above the mounting groove, the blade 2 is placed in the blade grooves, and the blade 2 is fixed in the blade grooves by mounting screws. In this embodiment, eight blades 2 are provided, which can also be adjusted according to usage requirements.

[0034] The working principle of this utility model is as follows: By setting an adjusting block 3, and supporting the bottom of the blade 2 through the support part 31 on the horizontal side of the adjusting block 3, and providing a bearing surface 11 at the bottom of the support part 31 for further support, the adjusting block 3 and the support part 31 adopt an asymmetrical design. The rotational force of the positioning screw is supported by the cutter head 1, and the position of the adjusting block 3 is stable. The cutter head 1 cooperates with the blade 2 through the bearing surface 11 to clamp the support part 31. The locking force of the blade 2 is directly transferred to the support part 31, and then from the support part 31 to the cutter head 1. Therefore, the positioning screw will not bear excessive force, making the processing more accurate and stable, and the processing effect better.

[0035] The above are merely preferred embodiments of this application, and the present invention is not limited to the above embodiments. It is understood that other improvements and variations that can be directly derived or conceived by those skilled in the art without departing from the spirit and concept of the present invention should be considered to be included within the protection scope of the present invention.

Claims

1. A high-precision, high-stability planar milling cutter, characterized in that, include: A cutter head (1) and a plurality of blades (2), wherein the plurality of blades (2) are disposed on the end ring side of the cutter head (1); The cutter head (1) has mounting grooves at the bottom of multiple blades (2), and an adjustment block (3) is provided at the mounting groove. The adjustment block (3) is fixed to the mounting groove by positioning screws. A support part (31) is provided on the horizontal side of the adjustment block (3). The top of the support part (31) contacts the bottom of the blade (2). The cutter head (1) has a bearing surface (11) at the bottom of several support parts (31).

2. The high-precision, high-stability planar milling cutter according to claim 1, characterized in that: The support (31) is formed by extending upward at an angle from the horizontal side of the adjusting block (3).

3. A high-precision, high-stability planar milling cutter according to claim 2, characterized in that: The bottom surface of the support (31) extends upward from one side of the adjusting block (3) toward the side away from the adjusting block (3), and the receiving surface (11) is adapted to the bottom surface of the support (31).

4. A high-precision, high-stability planar milling cutter according to claim 3, characterized in that: The contact surface between the blade (2) and the support (31) extends upward at an angle from one side of the adjusting block (3) toward the side away from the adjusting block (3).

5. A high-precision, high-stability planar milling cutter according to claim 4, characterized in that: The blade (2) is made of high-speed steel or cemented carbide.

6. A high-precision, high-stability planar milling cutter according to claim 1, characterized in that: The end ring of the cutter head (1) is provided with several cutter grooves, which are located above the mounting groove, and the blade (2) is located in the cutter groove.

7. A high-precision, high-stability planar milling cutter according to claim 6, characterized in that: The blade (2) is fixed in the blade groove by mounting screws.

8. A high-precision, high-stability planar milling cutter according to claim 1, characterized in that: The adjusting block (3) and the support part (31) are integrally formed.

9. A high-precision, high-stability planar milling cutter according to claim 1, characterized in that: The adjusting block (3) and the support (31) are made of hard alloy.

10. A high-precision, high-stability planar milling cutter according to claim 1, characterized in that: The blade (2) is provided in eight parts.

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