Multi-blade type cutterhead structure

Abstract

The utility model discloses a multi-blade type cutterhead structure which comprises a cutterhead body, a plurality of blades arranged in the circumferential direction of the cutterhead body are arranged on the circumferential side of the cutterhead body, a cutting head is installed at the end of each blade, the cutting heads on the adjacent blades are arranged in a left-right staggered mode, and the section of each cutting head is in a regular hexagonal frustum shape. A mounting groove for mounting the cutting head is formed in the blade, an opening is formed in the outer end part, close to the blade, of the mounting groove, and after the cutting head is mounted in the mounting groove, one side of the cutting head in the shape of a regular hexagonal frustum extends out of the opening; according to the utility model, the left and right staggered distance is controlled for arrangement and fixation, the cutter head rotates at a high speed to process the wanted chip groove width effect, various chip groove width specifications exceeding the cutting edge width of the blade can be processed, the required chip groove can be processed only through the number combination of the blade specifications, and the mold opening cost of the blade is greatly reduced.

Description

Technical Field

[0001] This utility model relates to the technical field of cutter heads, specifically a multi-blade cutter head structure. Background Technology

[0002] The cutting blades are designed to correspond to various chip removal groove shapes. The blades on the cutter head are arranged on a fixed trajectory, and the grooves machined using the cutting width of a single blade of that design constitute the required chip removal grooves. Specifically, according to… Figure 1 As shown, when the cutter head rotates at high speed, the blades on the cutter head all follow the same repeating trajectory, and the blades overlap, so the chip removal grooves are all consistent with the blade cutting edges; this ensures that the chip removal grooves are consistent with the blade cutting edges, and chip removal grooves that exceed the width of the blade cutting edges cannot be machined. Utility Model Content

[0003] To address the shortcomings of existing technologies, this utility model provides a multi-blade cutter head structure.

[0004] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0005] This utility model discloses a multi-blade cutter head structure, including a cutter head body. The cutter head body has multiple blades arranged circumferentially around its periphery, and each blade has a cutting head mounted on its end. The cutting heads on adjacent blades are staggered to the left and right, and the cross-section of the cutting head is a regular hexagonal frustum. The blades have mounting grooves for mounting the cutting heads. The mounting grooves have openings near the outer end of the blades. After the cutting head is installed in the mounting groove, one side of the regular hexagonal frustum cutting head extends out from the opening.

[0006] As a preferred technical solution of this utility model, the side wall of the mounting groove is provided with an inwardly recessed clearance groove that corresponds to the edge of the hexagonal frustum-shaped cutting head.

[0007] As a preferred embodiment of this utility model, the blade is provided with no less than 4 blades.

[0008] As a preferred embodiment of this utility model, the cutting head has a through hole in the middle, and the blade has a positioning hole corresponding to the through hole, and a positioning bolt is installed between the through hole and the positioning hole.

[0009] As a preferred technical solution of this utility model, the cutter head body and the blade are integrally formed and are made of high-strength alloy steel.

[0010] As a preferred embodiment of this utility model, the cutter head body is provided with a spindle interface in the middle.

[0011] The beneficial effects of this utility model are:

[0012] This multi-blade cutter head structure arranges and fixes the blades by controlling the left-right staggered distance. The high-speed rotation of the cutter head produces the desired chip groove width, enabling the machining of various chip groove widths exceeding the blade cutting edge width. The required chip groove width can be achieved simply by combining different blade sizes, significantly reducing blade die-making costs. The cutting heads on adjacent blades are staggered left-right. This staggered arrangement distributes the load during a single cut, preventing multiple cutting edges from contacting the workpiece simultaneously, thus reducing tool vibration and heat concentration. The staggered distance also allows each cutting edge to share wear across different areas, preventing repeated friction along the same path, reducing cutting force, vibration, surface quality, and extending tool life. Attached Figure Description

[0013] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0014] Figure 1 This is a schematic diagram of a multi-blade cutter head structure according to this utility model;

[0015] Figure 2 This is a schematic diagram of the mounting groove for a multi-blade cutter head structure according to this utility model;

[0016] Figure 3 This is a schematic diagram of the cutting head of a multi-blade cutter head structure according to this utility model;

[0017] Figure 4 This is a schematic diagram of the clearance groove of a multi-blade cutter head structure according to this utility model.

[0018] In the diagram: 1. Cutter head body; 2. Blade; 3. Cutting head; 4. Mounting slot; 5. Opening; 6. Clearance slot; 7. Through hole; 8. Positioning hole; 9. Spindle interface. Detailed Implementation

[0019] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0020] Example: Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, the present invention discloses a multi-blade cutter head structure, including a cutter head body 1. The cutter head body 1 has a plurality of blades 2 arranged around its periphery, and each blade 2 has a cutting head 3 installed at its end. The cutting heads 3 on adjacent blades 2 are staggered left and right, where D1 and D2 represent the distance of the left and right stagger.

[0021] Furthermore, the cutting head 3 has a cross-section of a regular hexagonal frustum. The insert 2 has a mounting groove 4 for mounting the cutting head 3. The mounting groove 4 has an opening 5 near the outer end of the insert 2. After the cutting head 3 is installed in the mounting groove 4, one side of the regular hexagonal frustum cutting head 3 extends out from the opening 5 to form the cutting part. By controlling the left and right staggered distance for arrangement and fixing, the high-speed rotation of the cutter head can process the desired chip removal groove width. It can process various chip removal groove widths exceeding the width of the insert cutting edge. It only requires a combination of one insert specification to process the required chip removal groove, which greatly reduces the insert mold opening cost. The cutting heads on adjacent inserts are arranged with a left and right staggered distance. By arranging the cutting heads with a left and right staggered distance, the load during a single cut can be distributed, avoiding multiple cutting edges from contacting the workpiece at the same time, thereby reducing tool vibration and the concentration of cutting heat. The staggered distance allows each cutting edge to share the wear of different areas, avoiding repeated friction of all cutting edges on the same path, reducing cutting force, reducing vibration, improving surface quality, and extending tool life.

[0022] The mounting groove 4 has an inwardly recessed clearance groove 6 on its side wall that corresponds to the edge of the regular hexagonal frustum-shaped cutting head 3, which facilitates the installation and removal of the regular hexagonal frustum-shaped cutting head 3.

[0023] The blade 2 has no fewer than four blades, which can process various chip removal groove widths that exceed the blade cutting edge width. The required chip removal grooves can be processed simply by combining the number of blades, which greatly reduces the cost of blade mold making.

[0024] The cutting head 3 has a through hole 7 in the middle, and the blade 2 has a positioning hole 8 corresponding to the through hole 7. A positioning bolt is installed between the through hole 7 and the positioning hole 8, which facilitates the fixing of the cutting head 3.

[0025] The cutter head body 1 and the blade 2 are integrally formed and made of high-strength alloy steel, which gives the whole body high strength.

[0026] The cutter head body 1 has a spindle interface 9 in the middle, which facilitates installation and environmental adjustment.

[0027] During operation, this multi-blade cutter head structure, with its left and right staggered arrangement, rotates at high speed to machine the desired width of the chip removal grooves. It can machine various chip removal groove widths exceeding the blade edge width, and only requires a single blade specification to create the required chip removal grooves, significantly reducing blade die-making costs. The cutting heads on adjacent blades are staggered left and right. This staggered arrangement distributes the load during a single cut, preventing multiple cutting edges from contacting the workpiece simultaneously, thus reducing tool vibration and heat concentration. The staggered arrangement also allows each cutting edge to share wear across different areas, preventing repeated friction along the same path, reducing cutting force, vibration, surface finish, and extending tool life.

[0028] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A multi-blade cutterhead structure, characterized by, The tool includes a cutter head body (1), and a plurality of blades (2) are provided around the cutter head body (1) along the circumference of the cutter head body (1). Each blade (2) is equipped with a cutting head (3) at its end. The cutting heads (3) on adjacent blades (2) are staggered to the left and right. The cross section of the cutting head (3) is a regular hexagonal frustum. The blade (2) is provided with a mounting groove (4) for mounting the cutting head (3). The mounting groove (4) is provided with an opening (5) near the outer end of the blade (2). After the cutting head (3) is installed in the mounting groove (4), one side of the regular hexagonal frustum cutting head (3) extends out from the opening (5).

2. A multi-blade cutterhead structure according to claim 1, wherein The mounting groove (4) has an inwardly recessed clearance groove (6) that corresponds to the edge of the hexagonal cutting head (3).

3. A multi-blade cutterhead structure according to claim 1 wherein, The blade (2) has no fewer than 4 blades.

4. A multi-blade cutterhead structure according to claim 1 wherein, The cutting head (3) has a through hole (7) in the middle, and the blade (2) has a positioning hole (8) corresponding to the through hole (7), and a positioning bolt is installed between the through hole (7) and the positioning hole (8).

5. A multi-blade cutterhead structure according to claim 1 wherein, The cutter head body (1) and the blade (2) are integrally formed and are made of high-strength alloy steel.

6. A multi-blade cutterhead structure according to claim 1 wherein, The cutter head body (1) is provided with a spindle interface (9) in the middle.

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