PCBN cutter structure convenient to disassemble and replace

Abstract

The utility model discloses a PCBN cutter structure convenient to disassemble and replace, and relates to the technical field of PCBN cutters, the PCBN cutter structure comprises a cutter handle, a blade and a locking piece, the cutter handle is provided with an embedding groove, the embedding groove is internally provided with a lock hole, the cutter handle is also provided with a mounting groove, and the cross section of the mounting groove is triangular; the section of the blade is rhombic, the bottom of the rhombic blade is matched with the mounting groove, a protruding block is arranged on one side of the blade, and a threaded hole is formed in the protruding block. The locking piece is a locking stud, and the locking stud is in threaded connection with the threaded hole. The installation groove with the triangular section is formed in the knife handle, the blade with the rhombic section is arranged, the bottom of the rhombic blade is embedded into the installation groove in the using process, stability and safety protection can be achieved, the blade can be stably fixed into the knife handle with the assistance of the locking piece for fixing, and the knife handle is convenient to use. And when the device is disassembled, only one locking stud needs to be unscrewed, so that the device is convenient to disassemble, and the practicability is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of PCBN cutters, in particular to a PCBN cutter structure which is easy to disassemble and replace. 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 can only be processed into a flat tool without a groove and is widely used in the processing of difficult-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 PCBN tool structure, it is inconvenient to disassemble and assemble the tool handle and the blade, which affects the use effect. Therefore, a PCBN tool structure that is easy to disassemble and replace 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 a PCBN tool structure that is easy to disassemble and replace.

[0006] Technical Solution

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a PCBN tool structure that is easy to disassemble and replace, comprising a handle, a blade and a locking piece: an embedding groove is provided on the handle, a locking hole is provided inside the embedding groove, and a mounting groove is also provided on the handle, and the cross-sectional shape of the mounting groove is triangular; the cross-sectional shape of the blade is rhombus-shaped, and the bottom of the rhombus-shaped blade is adapted to the mounting groove, a protrusion is provided on one side of the blade, and a threaded hole is provided inside the protrusion; the locking piece is a locking stud, and the locking stud is threadedly connected with the threaded hole. By providing a mounting groove with a triangular cross-sectional shape on the handle and providing a blade with a rhombus cross-sectional shape, the bottom of the rhombus-shaped blade is embedded in the mounting groove when in use, which can be stably secured, and with the aid of the locking piece for fixing, the blade can be firmly fixed inside the handle, and when the device is disassembled, only one locking stud needs to be unscrewed, so that disassembly is convenient and practicality is improved.

[0008] Preferably, one side of the knife handle is provided with a chamfer.

[0009] Preferably, the blade comprises a blade body and a blade edge, and the blade body and the blade edge are an integral sintered structure.

[0010] Preferably, a cutting groove is provided at the blade, and the groove depth of the cutting groove is 0.5 to 3 mm.

[0011] Preferably, the embedding groove is adapted to the protrusion.

[0012] Preferably, the locking stud is inserted into the lock hole.

[0013] Beneficial effects:

[0014] Compared with the prior art, the PCBN tool structure that is easy to disassemble and replace has the following beneficial effects:

[0015] The utility model provides a mounting groove with a triangular cross-section on the knife handle, and provides a blade with a diamond cross-section. When in use, the bottom of the diamond-shaped blade is embedded in the mounting groove, which can be stably secured. With the aid of a locking piece for fixing, the blade can be firmly fixed inside the knife handle. When the device is disassembled, only one locking stud needs to be unscrewed, which makes disassembly convenient and improves practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the utility model;

[0017] Figure 2 It is a cross-sectional structural schematic diagram of the utility model;

[0018] Figure 3 It is a side structural schematic diagram of the blade of the utility model.

[0019] In the figure:

[0020] 1. Knife handle; 101. Embedding groove; 102. Locking hole; 103. Mounting groove; 2. Blade; 201. Bump; 202. Threaded hole; 203. Knife body; 204. Blade; 205. Cutting groove; 3. Locking piece. 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 3As shown, the utility model provides a technical solution: a PCBN tool structure that is easy to disassemble and replace, including a handle 1, a blade 2 and a locking piece 3, the handle 1 is provided with an embedding groove 101, the embedding groove 101 is provided with a locking hole 102, the handle 1 is also provided with a mounting groove 103, the cross-sectional shape of the mounting groove 103 is triangular, the cross-sectional shape of the blade 2 is rhombus, the bottom of the rhombus blade 2 is adapted to the mounting groove 103, a protrusion 201 is provided on one side of the blade 2, a threaded hole 202 is provided inside the protrusion 201, the handle 1 is provided with a mounting groove 103 with a triangular cross-sectional shape, and a blade 2 with a rhombus cross-sectional shape is provided, when in use, the bottom of the rhombus blade 2 is embedded in the mounting groove 103, can be stably secured, and with the aid of the locking piece 3 for fixing, the blade 2 can be firmly fixed inside the handle 1;

[0023] The locking member 3 is a locking stud, which is threadedly connected to the threaded hole 202. When disassembling the device, only one locking stud needs to be unscrewed, which makes disassembly convenient and improves practicality.

[0024] Please pay attention to Figure 1 and Figure 2 A chamfer is provided on one side of the handle 1, and the blade 2 includes a blade body 203 and a blade edge 204, and the blade body 203 and the blade edge 204 are an integral sintered structure.

[0025] Please pay attention to Figure 3 A cutting groove 205 is provided at the blade 204, and the groove depth of the cutting groove 205 is 0.5 to 3 mm.

[0026] In the present application, the embedding groove 101 is adapted to the protrusion 201 , and the locking stud is inserted into the locking hole 102 .

[0027] Working principle: by setting a mounting groove 103 with a triangular cross-section on the handle 1, and setting a blade 2 with a diamond cross-section, the bottom of the diamond blade 2 is embedded in the mounting groove 103 when in use, which can be stably secured. With the aid of a locking member 3 for fixing, the blade 2 can be firmly fixed inside the handle 1, and when the device is disassembled, it is only necessary to unscrew the only locking stud, which makes disassembly convenient and improves practicality.

[0028] 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. A PCBN tool structure that is easy to disassemble and replace, comprising a tool handle (1), a blade (2) and a locking member (3), characterized in that: The knife handle (1) is provided with an embedding groove (101), a locking hole (102) is provided inside the embedding groove (101), and the knife handle (1) is also provided with a mounting groove (103), the cross-sectional shape of the mounting groove (103) is triangular; The cross section of the blade (2) is rhombus-shaped, the bottom of the rhombus-shaped blade (2) is adapted to the mounting groove (103), a protrusion (201) is provided on one side of the blade (2), and a threaded hole (202) is provided inside the protrusion (201); The locking member (3) is a locking stud, and the locking stud is threadedly connected to the threaded hole (202).

2. A PCBN tool structure that is easy to disassemble and replace according to claim 1, characterized in that: One side of the knife handle (1) is provided with a chamfer.

3. The PCBN tool structure that is easy to disassemble and replace according to claim 1 is characterized in that: The blade (2) comprises a blade body (203) and a blade edge (204), and the blade body (203) and the blade edge (204) are integrally sintered structures.

4. The PCBN tool structure that is easy to disassemble and replace according to claim 3 is characterized in that: The blade (204) is provided with a cutting groove (205), and the groove depth of the cutting groove (205) is 0.5 to 3 mm.

5. The PCBN tool structure that is easy to disassemble and replace according to claim 1 is characterized in that: The embedding groove (101) is adapted to the protrusion (201).

6. The PCBN tool structure that is easy to disassemble and replace according to claim 1 is characterized in that: The locking stud is inserted into the locking hole (102).

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