Integral composite PCBN cutter
By setting flow grooves, break grooves and openings on the tool holder of the PCBN tool, the effective flow of coolant is achieved, which solves the problem of overheating of the tool during milling and improves the heat dissipation effect and strength of the tool.
Patent Information
- Application Number
- CN202421540912.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-02
- Publication Date
- 2025-06-06
- Estimated Expiration
- 2034-07-02
AI Technical Summary
Existing PCBN tools are difficult to effectively dissipate heat, resulting in overheating of the insert during milling and reducing strength.
An integral composite PCBN tool is designed, with multiple flow grooves, a break groove and multiple openings on the tool holder, and coolant flows through these structures to improve the heat dissipation effect.
Through the design of flow grooves, break grooves and openings, the coolant can flow more effectively, controlling the temperature of the milling insert within an appropriate range, and avoiding the reduction in strength due to overheating.
Smart Images
Figure CN222944533U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of PCBN cutters, in particular to an integral composite PCBN cutter. Background Art
[0002] PCBN (Cubic Boron Nitride Polycrystalline) is a tool material currently most suitable for high-speed machining of iron-based metals, which is artificially synthesized by mixing CBN micropowder with a small amount of binder under high temperature and high pressure conditions. It has high hardness and is difficult to process. For a long time, it has only been processed into a flat tool without a groove and widely used in the machining of difficult-to-machine materials such as hardened steel, high-speed steel, and high-alloy wear-resistant cast iron surface spray welding materials. In order to improve the heat dissipation effect of the coolant on the tool, the present application proposes an integral composite PCBN tool. Utility Model Content
[0003] Technical issues solved
[0004] The purpose of the utility model is to make up for the deficiencies of the prior art and to provide an integral composite PCBN tool.
[0005] Technical Solution
[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an integral composite PCBN tool, comprising a tool holder and a blade, the tool holder and the blade are fixedly connected, the tool holder and the blade are an integral fixed structure, a flow groove and a broken groove are arranged on the tool holder, there are multiple flow grooves, the flow grooves are distributed on the outer surface of the tool holder, there is one broken groove, the broken groove is located at the ends of the multiple flow grooves, an opening is arranged on one side of the broken groove, there are multiple openings, and the multiple openings are evenly distributed, by arranging the flow groove, the broken groove and the opening on the tool holder, it is convenient for the coolant to pass through and flow in the flow groove, the broken groove and the opening, and the coolant flowing inside the flow groove, the broken groove and the opening can improve the cooling effect, so that the temperature of the milling blade during milling work can be controlled within an appropriate range, and its strength is avoided from being reduced due to overheating.
[0007] Preferably, one side of the blade is a cutting edge, and a chip breaker groove is provided at the cutting edge.
[0008] Preferably, the thickness of the blade is 3 to 10 mm.
[0009] Preferably, the thickness of the blade is 2 to 5 mm.
[0010] Preferably, the chip breaker groove has a depth of 0.8-2.5 mm.
[0011] Preferably, the flow groove, the broken groove and the opening are all connected.
[0012] Beneficial effects:
[0013] Compared with the prior art, the integral composite PCBN tool has the following beneficial effects:
[0014] The utility model provides flow grooves, broken grooves and openings on the tool holder, so that the coolant can pass through and flow in the flow grooves, broken grooves and openings. The coolant flowing inside the flow grooves, broken grooves and openings can improve the cooling effect, so that the temperature of the milling blade during milling work can be controlled within an appropriate range, and the strength reduction due to overheating can be avoided. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 It is a schematic diagram of the structure of the utility model;
[0016] Figure 2 It is a schematic cross-sectional structure diagram of the tool holder of the utility model;
[0017] Figure 3 It is a side structural schematic diagram of the blade of the utility model.
[0018] In the figure:
[0019] 1. Tool holder; 101. Flow groove; 102. Breaking groove; 103. Opening; 2. Blade; 201. Blade edge; 202. Chip breaker groove. DETAILED DESCRIPTION
[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0021] See also Figure 1 to Figure 3As shown, the utility model provides a technical solution: an integral composite PCBN tool, comprising a tool holder 1 and a blade 2, wherein the tool holder 1 and the blade 2 are fixedly connected, the tool holder 1 and the blade 2 are an integral fixed structure, the tool holder 1 is provided with a flow groove 101 and a broken groove 102, the flow groove 101 has a plurality of flow grooves 101, the flow grooves 101 are distributed on the outer surface of the tool holder 1, the broken groove 102 has one, the broken groove 102 is located at the ends of the plurality of flow grooves 101, and one side of the broken groove 102 is provided There is an opening 103, and there are multiple openings 103, and the multiple openings 103 are evenly distributed. The flow groove 101, the broken groove 102 and the opening 103 are arranged on the tool holder 1, so that the coolant can pass through and flow in the flow groove 101, the broken groove 102 and the opening 103. The coolant flowing inside the flow groove 101, the broken groove 102 and the opening 103 can improve the cooling effect, so that the temperature of the milling blade during milling work can be controlled within an appropriate range, and its strength is prevented from being reduced due to overheating.
[0022] Please pay attention to Figure 3 One side of the blade 2 is a blade edge 201, and a chip breaker groove 202 is arranged at the blade edge 201. The chip breaker groove can be provided to force the chips in the production process to be broken, so that the occurrence of continuous chips wrapping around the blade, the tool rod and the workpiece during processing can be completely controlled.
[0023] In the present application, the thickness of the blade 2 is 3-10 mm, the thickness of the blade edge 201 is 2-5 mm, and the depth of the chip breaker groove 202 is 0.8-2.5 mm.
[0024] Please pay attention to Figure 2 , the flow channel 101, the broken groove 102 and the opening 103 are all connected.
[0025] Working principle: A flow groove 101, a broken groove 102 and an opening 103 are arranged on the tool holder 1 to facilitate the coolant to pass through and flow in the flow groove 101, the broken groove 102 and the opening 103. The coolant flowing inside the flow groove 101, the broken groove 102 and the opening 103 can improve the cooling effect, so that the temperature of the milling blade during milling work can be controlled within an appropriate range, avoiding its strength reduction due to overheating.
[0026] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. An integral composite PCBN tool, comprising a tool holder (1) and a blade (2), wherein the tool holder (1) and the blade (2) are fixedly connected, and characterized in that: The tool holder (1) is provided with a flow groove (101) and a broken groove (102), wherein there are a plurality of flow grooves (101) distributed on the outer surface of the tool holder (1), there is one broken groove (102), and the broken groove (102) is located at the ends of the plurality of flow grooves (101), an opening (103) is provided on one side of the broken groove (102), there are a plurality of openings (103), and the plurality of openings (103) are evenly distributed.
2. The integral composite PCBN tool according to claim 1, characterized in that: One side of the blade (2) is a cutting edge (201), and a chip breaker groove (202) is provided at the cutting edge (201).
3. The integral composite PCBN tool according to claim 1, characterized in that: The thickness of the blade (2) is 3 to 10 mm.
4. The integral composite PCBN tool according to claim 2, characterized in that: The thickness of the blade (201) is 2 to 5 mm.
5. The integral composite PCBN tool according to claim 2, characterized in that: The chip breaker groove (202) has a groove depth of 0.8-2.5 mm.
6. The integral composite PCBN tool according to claim 1, characterized in that: The flow channel (101), the broken groove (102) and the opening (103) are all connected.