Diamond woodworking milling cutter for double-faced plate
By designing helical and vertical insert structures on the double-sided sheet metal milling cutter, the problem of insufficient structural strength at the joint of the milling cutter is solved, effectively preventing sheet metal veneer tearing and extending its service life.
Patent Information
- Application Number
- CN202520454631.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-14
- Publication Date
- 2026-01-23
- Estimated Expiration
- 2035-03-14
AI Technical Summary
Existing milling cutters for double-sided laminated panels have insufficient structural strength at the junction between the upward and downward helical cutting edges, resulting in short service life and easy breakage.
Design a diamond wood milling cutter for double-sided veneered panels. The cutter head is equipped with a helical insert and a vertical insert. The helical insert is used for helical cutting, and the vertical insert is used for vertical cutting. There is an overlapping area between the two to enhance the structural strength. The chip removal effect is improved through a specific chip removal groove structure design.
It effectively prevents the veneer from tearing, improves the service life of cutting tools, enhances structural strength, and extends the service life of cutting tools.
Smart Images

Figure CN223820714U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to cutting tools for processing sheet metal, and more specifically, it relates to a diamond woodworking milling cutter for double-sided laminated sheets. Background Technology
[0002] Double-sided laminated panels consist of particleboard and MDF as the inner layer, covered with a specially treated surface layer that is scratch-resistant and acid / alkali-resistant. When cutting double-sided laminated panels, specialized cutting tools are typically required, such as the three-bladed cutting tool described in patent CN 220446712 U, which facilitates chip removal during processing and prevents tearing of the panel surface. However, these milling cutters usually have both upward and downward spiral cutting edges. In practical use, they often break due to insufficient structural strength at the connection between the upward and downward spiral cutting edges, and their service life still needs improvement.
[0003] Therefore, a diamond wood milling cutter for double-sided veneered panels is proposed to solve the above problems. Utility Model Content
[0004] The technical problem to be solved by this utility model is to address the above-mentioned shortcomings of the prior art by providing a diamond woodworking milling cutter for double-sided laminated panels, which can effectively avoid the problem of tearing of the laminated panels and greatly improve the service life of the cutter.
[0005] The technical solution of this utility model is as follows: A diamond woodworking milling cutter for double-sided laminated panels includes a shank and a cutter head disposed at one end of the shank. The upper part of the cutter head is provided with at least two helical grooves. Each helical groove has an upper cutting groove at its lowest end. A helical blade is fixed on the upper cutting groove. A first chip removal groove is provided on the cutter head below one side of the helical blade. A second chip removal groove is also provided on the cutter head on one side of the first chip removal groove. A lower cutting groove is provided on the cutter head between two adjacent helical blades. A vertical blade extending along its axial direction is provided on the lower cutting groove. The top of the vertical blade extends to one side of the lower part of the helical blade. A third chip removal groove is provided on the cutter head on one side of the vertical blade. The third chip removal groove, the first chip removal groove, and the second chip removal groove are arranged sequentially along the cutting direction of the milling cutter.
[0006] As a further improvement, the width of the first chip removal groove gradually decreases along the end away from the tool holder.
[0007] Furthermore, the first chip removal groove includes a first chip removal surface and a second chip removal surface, the first chip removal surface is located on one side of the spiral blade, and the first chip removal surface and the second chip removal surface are connected to each other.
[0008] Furthermore, the width of the third chip removal groove gradually increases along the end away from the tool holder, and the depth of the third chip removal groove gradually increases along the end away from the tool holder.
[0009] Furthermore, the third chip removal groove includes a third chip removal surface, a fourth chip removal surface, and a fifth chip removal surface, which are connected in sequence.
[0010] Furthermore, the fourth chip removal surface is an arc-shaped surface, and the fifth chip removal surface is an inclined surface extending towards the center line of the cutter head.
[0011] Furthermore, the second chip removal groove is a plane extending along the axial direction of the cutter head.
[0012] Furthermore, the blade head and the handle are an integral structure.
[0013] Furthermore, the cutting head and handle are both made of alloy material, the spiral blade and the vertical blade are both made of diamond material, and the spiral blade and the vertical blade are both fixed by welding.
[0014] Beneficial effects
[0015] Compared with the prior art, this utility model has the following advantages:
[0016] This utility model relates to a diamond woodworking end mill. By equipping the upper and lower ends of the cutter head with a helical blade and a vertical blade, respectively, during cutting, the helical blade's helical cutting action causes the wood chips to flow downwards through the first chip groove. These chips press down on the veneer at the top of the board, preventing edge chipping and protecting the veneer. Meanwhile, the vertical blade's vertical cutting action does not exert any force on the veneer at the bottom of the board, and the wood chips fall naturally, also preventing edge chipping. Therefore, this woodworking end mill effectively prevents tearing of the veneer. Furthermore, the vertical blade extends to one side of the lower part of the helical blade, creating an overlap between the two blades. This prevents the joint between the two blades from becoming too thin, effectively increasing the structural strength of the cutter and significantly extending its service life. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the structure of this utility model;
[0018] Figure 2 for Figure 1 A magnified schematic diagram of the structure at point A in the middle.
[0019] Wherein: 1-tool holder, 2-tool head, 3-spiral groove, 4-upper groove, 5-spiral insert, 6-first chip removal groove, 7-second chip removal groove, 8-lower groove, 9-vertical insert, 10-third chip removal groove, 61-first chip removal surface, 62-second chip removal surface, 101-third chip removal surface, 102-fourth chip removal surface, 103-fifth chip removal surface. Detailed Implementation
[0020] The present invention will be further described below with reference to specific embodiments shown in the accompanying drawings.
[0021] See Figures 1-2 This utility model discloses a diamond woodworking milling cutter for double-sided veneered panels, comprising a shank 1 and a cutter head 2 disposed at one end of the shank 1. The diameter of the cutter head 2 is smaller than the diameter of the shank 1. The upper part of the cutter head 2 is provided with at least two helical grooves 3. The helical grooves 3 are provided to facilitate the machining of upper cutting grooves 4 and the installation and fixing of helical cutting blades 5. Each helical groove 3 has an upper cutting groove 4 at its lowest end, and a helical cutting blade 5 is fixed on the upper cutting groove 4. The helical cutting blade 5 is used for helical cutting. A first chip removal groove 6 is provided on the cutter head 2 below one side of the helical cutting blade 5 to facilitate the downward discharge of wood chips. The cutter head 2 on one side of the first chip removal groove 6 is also provided with... The second chip removal groove 7 further increases the space of the chip removal groove, which is more conducive to the discharge of wood chips; the cutter head 2 between two adjacent spiral blades 5 is provided with a lower cutting groove 8, and a vertical blade 9 extending along its axial direction is provided on the lower cutting groove 8. The vertical blade 9 is used for vertical cutting. The top of the vertical blade 9 extends to the lower side of the spiral blade 5, so that there is a common area between the vertical blade 9 and the spiral blade 5, which increases the structural strength of the tool. A third chip removal groove 10 is provided on the cutter head 2 on one side of the vertical blade 9 to facilitate chip removal. The third chip removal groove 10, the first chip removal groove 6, and the second chip removal groove 7 are arranged sequentially along the cutting direction of the milling cutter.
[0022] This utility model relates to a diamond woodworking end mill. By equipping the upper and lower ends of the cutter head 2 with a helical blade 5 and a vertical blade 9, respectively, during the cutting process, the helical cutting action of the helical blade 5 causes the wood chips to slide downwards through the first chip groove 6. These wood chips press down on the veneer at the top of the board, preventing edge chipping and protecting the veneer. Meanwhile, the vertical cutting action of the vertical blade 9 does not exert any force on the veneer at the bottom of the board, and the wood chips fall naturally, also preventing edge chipping. Therefore, this woodworking end mill effectively avoids tearing of the board veneer. Furthermore, the vertical blade extends to one side of the lower part of the helical blade, creating an overlap between the two blades. This prevents the joint between the two blades from becoming too thin, effectively increasing the structural strength of the tool and significantly extending its service life.
[0023] Preferably, the width of the first chip removal groove 6 gradually decreases along the end away from the handle 1, adopting a chip removal groove structure that is wider at the top and narrower at the bottom, which can effectively improve the chip removal effect. Further, the first chip removal groove 6 includes a first chip removal surface 61 and a second chip removal surface 62. The first chip removal surface 61 is located on one side of the spiral blade 5, and the first chip removal surface 61 and the second chip removal surface 62 are connected to each other, which can effectively guide the wood chips downwards.
[0024] Preferably, the width of the third chip removal groove 10 gradually increases along the end away from the handle 1, and the depth of the third chip removal groove 10 also gradually increases along the end away from the handle 1. This chip removal groove structure, with a smaller upper part and a larger lower part, effectively discharges wood chips from below the blade. Furthermore, the third chip removal groove 10 includes a third chip removal surface 101, a fourth chip removal surface 102, and a fifth chip removal surface 103, which are sequentially connected to each other, effectively guiding wood chips downwards. Even further, the fourth chip removal surface 102 is an arc-shaped surface, which effectively increases the chip removal groove volume in the middle of the vertical blade 9, further facilitating chip removal. The fifth chip removal surface 103 is a sloped surface extending towards the centerline of the blade head 2, employing a large-angle slope structure to accelerate chip removal. The second chip removal groove 7 is a plane extending along the axial direction of the blade head 2, which effectively increases the chip removal groove volume.
[0025] Preferably, the cutter head 2 and the tool holder 1 are a single integrated structure, which is convenient to manufacture and provides better structural strength. Furthermore, both the cutter head 2 and the tool holder 1 are made of alloy material, while the helical blade 5 and the vertical blade 9 are made of diamond material, and both the helical blade 5 and the vertical blade 9 are fixed by welding. Using alloy as the carrier and diamond as the cutting edge provides better rigidity and strength, greatly reducing the risk of tool breakage and further improving tool life.
[0026] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several modifications and improvements can be made without departing from the structure of the present utility model. These modifications and improvements will not affect the effectiveness of the present utility model or the practicality of the patent.
Claims
1. A diamond woodworking milling cutter for double-sided veneered panels, comprising a shank (1) and a cutter head (2) disposed at one end of the shank (1), characterized in that, The upper part of the cutter head (2) is provided with at least two helical grooves (3), and the lowest end of each helical groove (3) is provided with an upper cutting groove (4). A helical blade (5) is fixed on the upper cutting groove (4). A first chip removal groove (6) is provided on the cutter head (2) below one side of the helical blade (5). A second chip removal groove (7) is also provided on the cutter head (2) on one side of the first chip removal groove (6). A lower cutting groove (8) is provided on the cutter head (2) between two adjacent helical blades (5). A vertical blade (9) extending along its axial direction is provided on the lower cutting groove (8). The top of the vertical blade (9) extends to one side of the lower part of the helical blade (5). A third chip removal groove (10) is provided on the cutter head (2) on one side of the vertical blade (9). The third chip removal groove (10), the first chip removal groove (6), and the second chip removal groove (7) are arranged sequentially along the cutting direction of the milling cutter.
2. A diamond woodworking milling cutter for double-sided laminated panels according to claim 1, characterized in that, The width of the first chip removal groove (6) gradually decreases along the end away from the tool holder (1).
3. A diamond woodworking milling cutter for double-sided laminated panels according to claim 2, characterized in that, The first chip removal groove (6) includes a first chip removal surface (61) and a second chip removal surface (62). The first chip removal surface (61) is located on one side of the spiral blade (5), and the first chip removal surface (61) and the second chip removal surface (62) are connected to each other.
4. A diamond woodworking milling cutter for double-sided veneered panels according to claim 3, characterized in that, The width of the third chip removal groove (10) gradually increases along the end away from the tool holder (1), and the depth of the third chip removal groove (10) gradually increases along the end away from the tool holder (1).
5. A diamond woodworking milling cutter for double-sided veneered panels according to claim 4, characterized in that, The third chip removal groove (10) includes a third chip removal surface (101), a fourth chip removal surface (102), and a fifth chip removal surface (103), which are connected in sequence.
6. A diamond woodworking milling cutter for double-sided laminated panels according to claim 5, characterized in that, The fourth chip removal surface (102) is an arc-shaped surface, and the fifth chip removal surface (103) is an inclined surface that extends towards the center line of the cutter head (2).
7. A diamond woodworking milling cutter for double-sided veneered panels according to claim 1, characterized in that, The second chip removal groove (7) is a plane extending along the axial direction of the cutter head (2).
8. A diamond woodworking milling cutter for double-sided veneered panels according to any one of claims 1-7, characterized in that, The blade head (2) and the handle (1) are an integral structure.
9. A diamond woodworking milling cutter for double-sided veneered panels according to claim 8, characterized in that, The cutting head (2) and the handle (1) are both made of alloy material, and the spiral blade (5) and the vertical blade (9) are both made of diamond material. The spiral blade (5) and the vertical blade (9) are both fixed by welding.
Citation Information
Patent Citations
Three-blade cutting knife for double-faced plate
CN220446712U