A cemented carbide cutting tool with a reinforced structure

Abstract

This utility model provides a cemented carbide cutting tool with a reinforced structure, including a tool holder, a tool holder pull stud, a tool retaining chuck, a tool support base, a tool head, and a milling cutter head. The pull stud is fixedly installed on the top of the tool holder, and the tool retaining chuck is fixedly installed on the bottom of the tool holder. The tool support base is clamped at the bottom of the tool retaining chuck. The tool head is fixedly installed on the bottom of the tool support base, and the milling cutter head is fixedly installed on the tool head. The tool head and milling cutter head of this utility model can counteract the forces experienced during machining, effectively protecting the cutting edge of the machining tool.

Description

Technical Field

[0001] This utility model relates to the field of alloy cutting tool technology, and in particular to a cemented carbide cutting tool with a reinforced structure. Background Technology

[0002] Carbide cutting tools with reinforced structures are cutting tools whose overall performance is improved through specially designed support systems and mechanically optimized structures. These tools, based on traditional carbide tool bodies, incorporate reinforcing ribs, multi-layered supports, and stress-dispersing holes. They enhance rigidity by optimizing force flow transmission paths, suppress vibration through multi-contact point fixation, and protect core components by incorporating preferential deformation zones. This significantly improves the tool's impact resistance, stability, and service life while maintaining the high hardness and wear resistance of carbide, making them particularly suitable for high-speed, heavy-load, and other demanding machining conditions. However, existing carbide cutting tools still suffer from the inability to reverse and counteract the forces experienced during machining, thus failing to effectively protect the cutting edge.

[0003] Therefore, it is essential to invent a cemented carbide cutting tool with a reinforced structure. Utility Model Content

[0004] To address the aforementioned technical problems, this utility model provides a cemented carbide cutting tool with a reinforced structure, solving the problem that existing cemented carbide cutting tools still cannot effectively counteract the forces applied during machining and cannot effectively protect the cutting edge. A cemented carbide cutting tool with a reinforced structure includes a tool holder, a tool holder pull stud, a tool retaining chuck, a tool support base, a cutting tool head, and a milling cutter head. The pull stud is fixedly installed on the top of the tool holder, and the tool retaining chuck is fixedly installed on the bottom of the tool holder. The tool support base is clamped at the bottom of the tool retaining chuck. The cutting tool head is fixedly installed on the bottom of the tool support base, and the milling cutter head is fixedly installed on the cutting tool head.

[0005] The cutting tool head includes a cutting tool connecting plate, a cutting tool reinforcing seat, a cutting tool support guard plate, a cutting tool mounting hole, and an auxiliary reinforcing hole. The cutting tool connecting plate is fixedly installed at the bottom of the cutting tool support base, and the cutting tool reinforcing seat is fixedly installed on the lower surface of the cutting tool connecting plate. The cutting tool support guard plate is fixedly installed on the outer side of the bottom of the cutting tool reinforcing seat. The cutting tool mounting hole and the auxiliary reinforcing hole are opened inside the cutting tool reinforcing seat.

[0006] The milling cutter head includes a tool base block, a cutting edge, an integral connecting bolt, and an auxiliary force-bearing bolt. The cutting edge is located on the outer side of the tool base block, and the integral connecting bolt is fixedly installed at the center of the back of the tool base block. The tool base block is fixedly installed inside the tool mounting hole via the integral connecting bolt. The auxiliary force-bearing bolt is fixedly installed on the outer side of the tool base block and inside the auxiliary reinforcing hole.

[0007] The tool reinforcement seats inside the tool head are arranged in several groups and uniformly in a ring array below the tool head connecting plate. A flat surface is opened on the tool reinforcement seat and contacts the back surface of the milling cutter head. The tool support guard is a steel metal plate that protrudes outward and contacts the side surface of the milling cutter head.

[0008] The tool base block and cutting edge inside the milling cutter head are a rhomboid steel milling cutter. If the milling cutter head is fixed only by the integral connecting bolt, it will rotate around the integral connecting bolt as the center. At this time, the addition of the auxiliary force bolt will give the milling cutter head two support points and prevent it from rotating. The force applied by the auxiliary force bolt is opposite to the force applied by the milling cutter head when it is working.

[0009] Compared with the prior art, the present invention has the following beneficial effects:

[0010] 1. The tool head of this utility model is rigidly connected to the tool support base through the tool head connecting plate, and the cutting force is evenly distributed by the tool reinforcement seats distributed in a ring array. The tool support guard plate provides lateral limiting and forms a rigid protective structure to protect the milling cutter head. The tool mounting hole and auxiliary reinforcement hole are fixed at two points to prevent rotation by integral connecting bolts and auxiliary force-bearing bolts, respectively. In the end, while enhancing the overall rigidity and suppressing vibration, the precise positioning and dynamic stability of the milling cutter head under high-speed and heavy-load conditions are ensured.

[0011] 2. The milling cutter head of this utility model is designed so that the cutting load is borne by the tool base block, and the cutting edge set on its outer side directly participates in material removal; the cooperation between the integral connecting bolt and the tool mounting hole realizes the main force transmission, while the auxiliary force bolt is embedded in the auxiliary reinforcing hole to form a double-point anti-rotation structure, which not only effectively suppresses the deflection caused by the cutting torque, but also achieves dynamic balance through the reverse force application design. Combined with the diamond-shaped tool body structure, the cutting force distribution is optimized, which significantly improves the stability and service life of the tool while ensuring machining accuracy. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model.

[0013] Figure 2 This is a schematic diagram of the structure of the cutting head of this utility model.

[0014] Figure 3 This is a schematic diagram of the structure of the milling cutter head of this utility model.

[0015] In the picture:

[0016] 1. Tool holder mounting plate; 2. Tool holder pull stud; 3. Tool fixing chuck; 4. Tool support base; 5. Tool head; 51. Tool head connecting plate; 52. Tool reinforcement seat; 53. Tool support guard plate; 54. Tool mounting hole; 55. Auxiliary reinforcement hole; 6. Milling cutter head; 61. Tool base block; 62. Cutting edge; 63. Integral connecting bolt; 64. Auxiliary force-bearing bolt. Detailed Implementation

[0017] To enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below. 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.

[0018] As attached Figure 1 To be continued Figure 3 As shown.

[0019] This utility model provides a cemented carbide cutting tool with a reinforced structure, including a tool holder 1, a tool holder pull stud 2, a tool fixing chuck 3, a tool support base 4, a cutting tool head 5, and a milling cutter head 6, wherein: the tool holder pull stud 2 is fixedly installed on the top of the tool holder 1, and the tool fixing chuck 3 is fixedly installed on the bottom of the tool holder 1, and the tool support base 4 is clamped on the bottom of the tool fixing chuck 3; the cutting tool head 5 is fixedly installed on the bottom of the tool support base 4, and the milling cutter head 6 is fixedly installed on the cutting tool head 5.

[0020] The cutting tool head 5 includes a cutting tool connecting plate 51, a cutting tool reinforcing seat 52, a cutting tool support guard plate 53, a cutting tool mounting hole 54, and an auxiliary reinforcing hole 55. The cutting tool connecting plate 51 is fixedly installed at the bottom of the cutting tool support base 4, and the cutting tool reinforcing seat 52 is fixedly installed on the lower surface of the cutting tool connecting plate 51. The cutting tool support guard plate 53 is fixedly installed on the outer side of the bottom of the cutting tool reinforcing seat 52. The cutting tool mounting hole 54 and the auxiliary reinforcing hole 55 are formed inside the cutting tool reinforcing seat 52.

[0021] The milling cutter head 6 includes a tool base block 61, a cutting edge 62, an integral connecting bolt 63, and an auxiliary force-bearing bolt 64. The cutting edge 62 is located on the outer side of the tool base block 61, and the integral connecting bolt 63 is fixedly installed at the center of the back of the tool base block 61. The tool base block 61 is fixedly installed inside the tool mounting hole 54 through the integral connecting bolt 63. The auxiliary force-bearing bolt 64 is fixedly installed on the outer side of the tool base block 61 and inside the auxiliary reinforcing hole 55.

[0022] The tool reinforcement seats 52 inside the tool head 5 are arranged in several groups and uniformly in a ring array below the tool head connecting plate 51. A flat surface is opened on the tool reinforcement seat 52 and it contacts the back surface of the milling cutter head 6. The tool support guard plate 53 is a steel metal plate that protrudes outward and contacts the side surface of the milling cutter head 6.

[0023] The tool base block 61 and the cutting edge 62 inside the milling cutter head 6 are a rhomboid steel metal milling cutter. If the milling cutter head 6 is fixed only by the integral connecting bolt 63, it will rotate around the integral connecting bolt 63 as the center. At this time, the addition of the auxiliary force bolt 64 will give the milling cutter head 6 two support points and prevent it from rotating. The direction of the force applied by the auxiliary force bolt 64 is opposite to the direction of the force when the milling cutter head 6 is working.

[0024] This carbide cutting tool adopts a modular reinforced structure design, achieving efficient and precise machining through the synergistic effect of its components. The tool holder 1 and tool holder pull stud 2 ensure a reliable connection to the machine tool spindle, while the tool chuck 3 transmits the clamping force to the tool support base 4 for stable support. The tool head 5, as the core reinforced component, consists of a tool head connecting plate 51 and a ring-shaped array of tool reinforcement seats 52 forming the face milling cutter body, which, together with the tool support guard plate 53, achieves uniform distribution of cutting force. The milling cutter head 6 is fixed at two points via an integral connecting bolt 63 and an auxiliary force-bearing bolt 64, ensuring dynamic stability during machining while achieving efficient cutting on the rhomboid tool base block 61 and the cutting edge 62.

[0025] The tool mounting hole 54 and the auxiliary reinforcing hole 55 form a dual load path, and the reverse force design of the auxiliary force-bearing bolt 64 can actively counteract the cutting torque. The tool support guard 53, as a priority deformation component, protects the core structure, and the modular end mill head 6 facilitates replacement and maintenance. This reinforced structural design enables the tool to maintain high cutting efficiency while significantly improving rigidity and stability, making it particularly suitable for high-precision, heavy-duty cutting conditions. Machining accuracy can reach IT7 level, and tool life is increased by more than 30%.

[0026] Any technical solution that achieves the above-mentioned technical effects by utilizing the technical solution described in this utility model, or by designing a similar technical solution inspired by the technical solution described in this utility model, falls within the protection scope of this utility model.

Claims

1. A cemented carbide cutting tool with a reinforced structure, characterized in that: The tool holder includes a tool holder (1), a tool holder pull stud (2), a tool retaining chuck (3), a tool support base (4), a tool head (5), and a milling cutter head (6), wherein: the tool holder pull stud (2) is fixedly installed on the top of the tool holder (1), and the tool retaining chuck (3) is fixedly installed on the bottom of the tool holder (1), and the tool support base (4) is clamped on the bottom of the tool retaining chuck (3); the tool head (5) is fixedly installed on the bottom of the tool support base (4), and the milling cutter head (6) is fixedly installed on the tool head (5).

2. A cemented carbide cutting tool with a reinforced structure as described in claim 1, characterized in that: The cutting tool head (5) includes a cutting tool connecting plate (51), a cutting tool reinforcing seat (52), a cutting tool support guard plate (53), a cutting tool mounting hole (54), and an auxiliary reinforcing hole (55). The cutting tool connecting plate (51) is fixedly installed at the bottom of the cutting tool support base (4), and the cutting tool reinforcing seat (52) is fixedly installed on the lower surface of the cutting tool connecting plate (51). The cutting tool support guard plate (53) is fixedly installed on the outer side of the bottom of the cutting tool reinforcing seat (52). The cutting tool mounting hole (54) and the auxiliary reinforcing hole (55) are opened inside the cutting tool reinforcing seat (52).

3. A cemented carbide cutting tool with a reinforced structure as described in claim 1, characterized in that: The milling cutter head (6) includes a tool base block (61), a cutting edge (62), an integral connecting bolt (63), and an auxiliary force-bearing bolt (64). The cutting edge (62) is located on the outside of the tool base block (61), and the integral connecting bolt (63) is fixedly installed at the center of the back of the tool base block (61). The tool base block (61) is fixedly installed inside the tool mounting hole (54) through the integral connecting bolt (63). The auxiliary force-bearing bolt (64) is fixedly installed on the outside of the tool base block (61) and fixedly installed inside the auxiliary reinforcing hole (55).

4. A cemented carbide cutting tool with a reinforced structure as described in claim 2, characterized in that: The tool reinforcement seat (52) inside the tool head (5) is made of several groups and is evenly arranged in a ring below the tool head connecting plate (51). A flat surface is opened on the tool reinforcement seat (52) and it contacts the back surface of the milling cutter head (6). The tool support guard plate (53) is a steel metal plate that protrudes outward and contacts the side surface of the milling cutter head (6).

5. A cemented carbide cutting tool with a reinforced structure as described in claim 3, characterized in that: The tool base block (61) and cutting edge (62) inside the milling cutter head (6) are a rhomboid steel metal milling cutter. If the milling cutter head (6) is fixed only by the integral connecting bolt (63), it will rotate around the integral connecting bolt (63) as the center. At this time, the addition of the auxiliary force bolt (64) will make the milling cutter head (6) have two support points and cannot rotate. The force direction of the auxiliary force bolt (64) is opposite to the force direction when the milling cutter head (6) is working.

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