Integrally sintered PCBN (polycrystalline cubic boron nitride) blade

Abstract

The utility model discloses an integral sintering type PCBN (Polycrystalline Cubic Boron Nitride) blade, which relates to the technical field of PCBN blades and comprises an integral blade, a fixing groove is arranged on one side of the blade, the fixing groove is rhombic, a groove is further arranged on the blade surface of the blade along the edge of the blade, a positioning groove is further arranged on the blade, and the positioning groove is arranged on the blade. The positioning groove is located in the center of the fixing groove. By arranging the fixing groove, the blade can be prevented from deflecting under the action of stress and vibration, the machining precision of the surface of a workpiece is improved, the positioning groove is formed in the fixing groove, the blade positioning clamp matched with the positioning groove is adopted, the blade can be conveniently positioned and fixed, when vibration is generated during cutting, the blade cannot fly out, and the machining precision of the surface of the workpiece is improved. The safety during production is improved, the grooves designed in the blade can be used for forcibly breaking chips in the production process, and therefore the situation that the continuous chips wind the blade, the cutter bar, a workpiece and the like in the machining process can be completely controlled.

Description

Technical Field

[0001] The utility model relates to the technical field of PCBN blades, in particular to an integrally sintered PCBN blade. Background Art

[0002] PCBN (Cubic Boron Nitride Polycrystalline) is a kind of tool material that is currently most suitable for high-speed machining of iron-based metals. It is made by mixing CBN micropowder with a small amount of binder and then artificially synthesized 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 grooves and widely used in the processing of hard-to-process materials such as hardened steel, high-speed steel, and high-alloy wear-resistant cast iron surface spray welding materials.

[0003] In the existing continuous turning of hardened steel, high-speed steel, etc., due to the characteristics of the cut material, continuous chips will appear during processing. Since the chips cannot be effectively broken, the chips will often entangle the tool, the tool bar and the workpiece. In addition, the upper surface of the traditional diamond-shaped PCBN blade is flat and the upper pressure positioning is adopted. Vibration occurs during high-speed cutting, and the blade will fly out when the blade vibrates more severely. Therefore, an integrally sintered PCBN blade is proposed. Utility Model Content

[0004] Technical issues solved

[0005] The purpose of the utility model is to make up for the deficiencies of the prior art and to provide an integrally sintered PCBN blade.

[0006] Technical Solution

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solution: an integrally sintered PCBN blade, comprising an integral blade, a fixing groove is arranged on one side of the blade, the fixing groove is in a diamond shape, a groove is also arranged on the blade surface, and the groove is arranged along the edge of the blade.

[0008] Preferably, a positioning groove is also provided on the blade, and the positioning groove is located at the center of the fixing groove.

[0009] Preferably, the thickness of the blade is 3 to 10 mm.

[0010] Preferably, the groove depth of the fixing groove is 1 to 2 mm, and the groove depth of the positioning groove is 0.5 to 1 mm.

[0011] Preferably, the groove has a depth of 0.1 to 0.6 mm.

[0012] Beneficial effects:

[0013] Compared with the prior art, the integrally sintered PCBN insert has the following beneficial effects:

[0014] The utility model can prevent the blade from deflecting under the action of force and vibration by arranging the fixing groove, thereby improving the processing accuracy of the workpiece surface; a positioning groove is arranged in the fixing groove, and a blade positioning fixture matching therewith is adopted, which can conveniently position and fix the blade; when the cutting generates vibration, the blade will not fly out, thereby improving the safety during production; the groove designed on the blade can 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. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of the utility model;

[0016] Figure 2 It is a schematic diagram of the planar structure of the utility model;

[0017] Figure 3 For this utility model Figure 2 Schematic diagram of the cross-sectional structure at AA in the middle;

[0018] Figure 4 For this utility model Figure 2 Schematic diagram of the cross-sectional structure at BB in the middle.

[0019] In the figure:

[0020] 1. Blade; 2. Fixing groove; 3. Groove; 4. Positioning groove. DETAILED DESCRIPTION

[0021] 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.

[0022] See also Figure 1 to Figure 4 As shown, the utility model provides a technical solution: an integral sintered PCBN blade, comprising an integral blade 1, a fixing groove 2 is arranged on one side of the blade 1, and the fixing groove 2 is in a diamond shape. The fixing groove 2 is arranged to prevent the blade from deflecting under the action of force and vibration. A groove 3 is also arranged on the blade surface of the blade 1, and the groove 3 is arranged along the edge of the blade 1. The groove 3 designed on the blade can force the chips to be broken during the production process.

[0023] Please pay attention to Figure 1 and Figure 4A positioning groove 4 is also provided on the blade 1, and the positioning groove 4 is located at the center of the fixing groove 2. The positioning groove 4 is provided in the fixing groove 2, and a matching blade positioning fixture is used to facilitate positioning and fixing of the blade. When cutting generates vibration, the blade will not fly out, thereby improving safety during production.

[0024] In the present application, the thickness of the blade 1 is 3-10 mm, the depth of the fixing groove 2 is 1-2 mm, the depth of the positioning groove 4 is 0.5-1 mm, and the depth of the groove 3 is 0.1-0.6 mm.

[0025] Working principle: Setting the fixed groove 2 can prevent the blade from deflecting under the action of force and vibration, thereby improving the machining accuracy of the workpiece surface. Setting the positioning groove 4 in the fixed groove 2 and using a matching blade positioning fixture can facilitate the positioning and fixing of the blade. When the cutting generates vibration, the blade will not fly out, thereby improving the safety during production. The groove 3 designed on the blade can force the chips to be broken during the production process, so that the occurrence of continuous chips wrapping around the blade, tool rod and workpiece during processing can be completely controlled. At the same time, the probability of abnormal wear damage to the tool can be reduced, thereby extending the service life of the tool.

[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 integrally sintered PCBN insert, characterized in that: The invention comprises an integral blade (1), wherein a fixing groove (2) is arranged on one side of the blade (1), wherein the fixing groove (2) is in a rhombus shape, and a groove (3) is also arranged on the blade surface of the blade (1), wherein the groove (3) is arranged along the edge of the blade (1).

2. The integrally sintered PCBN insert according to claim 1, characterized in that: The blade (1) is also provided with a positioning groove (4), and the positioning groove (4) is located at the center of the fixing groove (2).

3. The integrally sintered PCBN insert according to claim 2, characterized in that: The thickness of the blade (1) is 3 to 10 mm.

4. The integrally sintered PCBN insert according to claim 3, characterized in that: The groove depth of the fixing groove (2) is 1 to 2 mm, and the groove depth of the positioning groove (4) is 0.5 to 1 mm.

5. The integrally sintered PCBN insert according to claim 4, characterized in that: The groove (3) has a groove depth of 0.1 to 0.6 mm.

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