Cubic boron nitride cutter with positive rake angle chip breaker groove

Abstract

The utility model relates to the technical field of cutters, and discloses a cubic boron nitride cutter with a positive rake angle chip breaker groove, which comprises a cutter bar, one end of the cutter bar is provided with a circular truncated cone, one end of the circular truncated cone far away from the cutter bar is fixedly connected with a connecting rod, the top of the connecting rod is provided with a mounting groove, and a blade is arranged in the mounting groove. A liquid inlet pipe is fixedly connected to the top of the connecting rod, a first plug is arranged in the liquid inlet pipe, a liquid discharge pipe is arranged at the bottom of the connecting rod, a second plug is arranged in the liquid discharge pipe, and a first chip guide groove is formed in the top of the connecting rod. Firstly, the interior of the liquid separation groove communicates with the interior of the flow guide groove, the liquid separation groove is obliquely formed in the connecting rod, cooling liquid in the flow guide groove can flow into the liquid separation groove, the cooling liquid is dispersed, and the cooling liquid can more smoothly dissipate heat transmitted to the connecting rod by the blade.

Description

Technical Field

[0001] The utility model relates to the field of cutting tools, in particular to a cubic boron nitride cutting tool with a chip breaker with a positive rake angle. Background Art

[0002] Cubic boron nitride (CBN) was first synthesized by General Electric (GE) in the United States in the 1950s under high temperature and high pressure conditions. Its hardness is second only to diamond and far higher than other materials. Therefore, it and diamond are collectively referred to as superhard materials. PCBN tools are artificial cubic boron nitride tools that can maintain high hardness at high temperatures and are mainly used for processing iron parts. The positive rake angle chip breaker is a three-dimensional shape machined on the front cutting face of the tool by laser carving to form a chip breaker, so that the iron chips can be discharged smoothly during the cutting process and the size of the iron chips can be controlled.

[0003] After searching, the existing Chinese patent announcement number is: CN220515445U, which provides a cubic boron nitride tool with a positive rake angle chip breaker. Through the arrangement of a connecting rod, a groove, a first clamping plate, a second clamping plate and a tool rod, when disassembling or fixing the tool, the connecting rod is rotated, and the grooves on the surface increase the friction, which has an anti-slip effect to avoid the dangerous phenomenon caused by hand slipping. The positions of the first clamping plate and the second clamping plate are staggered with each other. When rotating clockwise to fix or counterclockwise to disassemble, they are respectively aligned with their respective connecting ports for disassembly and fixing.

[0004] Although the above patent can be disassembled and fixed by aligning the respective connection ports, the above device still has the following problems: when the device is in use, the blade needs to contact the material for cutting processing, but since the comparative device is not provided with a heat dissipation structure, when the tool is cutting some workpieces, the heat generated by the tool needs to rely on the contact between itself and the air for heat dissipation, so the heat dissipation speed of the tool is slow, and to a certain extent, it is easy to cause heat damage to the blade.

[0005] In view of the above problems, a cubic boron nitride tool with a positive rake angle chip breaker is proposed. Utility Model Content

[0006] The utility model aims to provide a cubic boron nitride tool with a chip breaker with a positive rake angle, thereby solving the problems in the background technology.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a cubic boron nitride tool with a chip breaker groove with a positive rake angle, comprising a tool rod, a frustum is provided at one end of the tool rod, a connecting rod is fixedly connected to the end of the frustum away from the tool rod, a mounting groove is provided at the top of the connecting rod, a blade is provided inside the mounting groove, a liquid inlet pipe is fixedly connected to the top of the connecting rod, a first plug is provided inside the liquid inlet pipe, a liquid drain pipe is provided at the bottom of the connecting rod, a second plug is provided inside the liquid drain pipe, a first chip guide groove is provided at the top of the connecting rod, the lower surface inside the first chip guide groove is an inclined surface, a liquid inlet groove connected to the inside of the liquid inlet pipe is provided on the connecting rod, a guide groove is provided inside the connecting rod, the inside of the guide groove is connected to the inside of the liquid inlet groove and the inside of the liquid drain pipe, and the guide groove is arranged inside the connecting rod in an inclined shape.

[0008] Preferably, a second chip guide groove is provided on the top of the connecting rod, the interior of the second chip guide groove is communicated with the interior of the mounting groove, and the lower surface of the interior of the second chip guide groove is an inclined surface.

[0009] Preferably, a liquid separation groove is provided inside the connecting rod, and the interior of the liquid separation groove is communicated with the interior of the guide groove.

[0010] Preferably, the liquid separation groove is arranged inside the connecting rod in an inclined shape.

[0011] Preferably, a flow groove is provided inside the connecting rod, and the inside of the flow groove is connected to the inside of the liquid separation groove.

[0012] Preferably, a liquid accumulation groove is provided inside the connecting rod, the interior of the liquid accumulation groove is communicated with the interior of the flow groove, and the interior of the liquid accumulation groove is communicated with the interior of the guide groove.

[0013] Preferably, the liquid accumulation groove and the liquid separation groove form a V shape.

[0014] Preferably, a branch groove is provided inside the connecting rod, and the inside of the branch groove is connected to the inside of the flow groove.

[0015] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0016] 1. The utility model provides a cubic boron nitride tool with a chip breaker groove with a positive rake angle. First, the interior of the liquid separation groove is connected with the interior of the guide groove. The liquid separation groove is arranged inside the connecting rod in an inclined shape. The coolant inside the guide groove can flow into the interior of the liquid separation groove and disperse the coolant, so that the coolant can more smoothly dissipate the heat transferred from the blade to the connecting rod, so that the heat dissipation speed of the blade is improved to a certain extent, and the staff can use the device more smoothly.

[0017] 2. The utility model provides a cubic boron nitride tool with a chip breaker groove with a positive rake angle. The lower surface inside the second chip guide groove is an inclined surface. The second chip guide groove can make the waste slag entering the installation groove be discharged more smoothly. At the same time, through the setting of the second chip guide groove, the air inside the installation groove can flow more smoothly, and to a certain extent, the heat dissipation speed of the blade is improved, so that the staff can use the device more smoothly. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 This is a new structural diagram of the practical guide trough;

[0020] Figure 3 This is a structural diagram of the connecting rod of the utility model;

[0021] Figure 4 It is a structural schematic diagram of the support groove of the utility model.

[0022] Legend:

[0023] 1. Tool bar; 2. Round table; 3. Connecting rod; 4. First chip guide groove; 5. Liquid inlet pipe; 6. First plug; 7. Second chip guide groove; 8. Mounting groove; 9. Blade; 10. Liquid inlet groove; 11. Guide groove; 12. Second plug; 13. Drain pipe; 14. Liquid separation groove; 15. Flow groove; 16. Liquid accumulation groove; 17. Branch groove. DETAILED DESCRIPTION

[0024] 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.

[0025] In order to further understand the content of the utility model, the utility model is described in detail in conjunction with the accompanying drawings.

[0026] Combination Figure 1 , Figure 2 and Figure 3The utility model discloses a cubic boron nitride tool with a positive rake angle chip breaker, comprising a tool rod 1, a truncated cone 2 is arranged at one end of the tool rod 1, a connecting rod 3 is fixedly connected to the end of the truncated cone 2 away from the tool rod 1, a mounting groove 8 is arranged at the top of the connecting rod 3, a blade 9 is arranged inside the mounting groove 8, the blade 9 is an existing structure, and no more details are given here. The blade 9 is fixed to the connecting rod 3 by bolts, a liquid inlet pipe 5 is fixedly connected to the top of the connecting rod 3, the inside of the liquid inlet pipe 5 is a hollow structure, a first plug 6 is arranged inside the liquid inlet pipe 5, and the first plug 6 can seal the liquid inlet pipe 5, a drain pipe 13 is arranged at the bottom of the connecting rod 3, and a first Second plug 12, the second plug 12 can close the drain pipe 13, the top of the connecting rod 3 is provided with a first chip guide groove 4, the number of the first chip guide grooves 4 is multiple, and the multiple first chip guide grooves 4 are equidistantly arranged on the connecting rod 3, the lower surface inside the first chip guide groove 4 is an inclined surface, and the lower surface inside the first chip guide groove 4 is an inclined surface, so that the waste residue falling on the top of the connecting rod 3 can be discharged more smoothly, the connecting rod 3 is provided with a liquid inlet groove 10 connected to the inside of the liquid inlet pipe 5, and the connecting rod 3 is provided with a guide groove 11, the inside of the guide groove 11 is connected to the inside of the liquid inlet groove 10 and the drain pipe 13, and the guide groove 11 is arranged inside the connecting rod 3 in an inclined shape.

[0027] The staff allows the coolant to flow into the guide groove 11 through the liquid inlet pipe 5 for storage, and the coolant can be discharged through the drain pipe 13. At the same time, the inclined setting of the guide groove 11 makes the discharge of the coolant more thorough and reduces the coolant residue in the guide groove 11 to a certain extent.

[0028] Furthermore, a second chip guide groove 7 is provided at the top of the connecting rod 3, and the interior of the second chip guide groove 7 is connected with the interior of the mounting groove 8. The lower surface of the interior of the second chip guide groove 7 is an inclined surface, and the second chip guide groove 7 can make the waste slag entering the interior of the mounting groove 8 be discharged more smoothly. At the same time, through the setting of the second chip guide groove 7, the air inside the mounting groove 8 can flow more smoothly, and to a certain extent, the heat dissipation speed of the blade 9 is improved, so that the staff can use the device more smoothly.

[0029] Furthermore, a liquid separation groove 14 is opened inside the connecting rod 3, and the interior of the liquid separation groove 14 is connected with the interior of the guide groove 11. The liquid separation groove 14 is arranged inside the connecting rod 3 in an inclined state. The coolant inside the guide groove 11 can flow into the interior of the liquid separation groove 14 and disperse the coolant, so that the coolant can more smoothly dissipate the heat transferred from the blade 9 to the connecting rod 3, so that the heat dissipation speed of the blade 9 is improved to a certain extent, and the staff can use the device more smoothly.

[0030] Furthermore, a flow groove 15 is provided inside the connecting rod 3 , and the inside of the flow groove 15 is communicated with the inside of the liquid separation groove 14 .

[0031] Furthermore, a liquid accumulation groove 16 is opened inside the connecting rod 3, and the interior of the liquid accumulation groove 16 is connected with the interior of the flow groove 15, and the interior of the liquid accumulation groove 16 is connected with the interior of the guide groove 11. The liquid accumulation groove 16 and the liquid separation groove 14 form a V shape. Through the liquid accumulation groove 16, the coolant that enters the interior of the flow groove 15 from the liquid separation groove 14 can flow more smoothly into the interior of the guide groove 11, thereby making the subsequent discharge of the coolant smoother.

[0032] Combination Figure 4 Furthermore, a branch groove 17 is opened inside the connecting rod 3, and the interior of the branch groove 17 is connected to the interior of the flow groove 15. The branch groove 17 is arranged between two adjacent second chip guide grooves 7. Through the branch groove 17, the device can dissipate heat from the side of the blade 9. To a certain extent, the heat dissipation speed of the blade 9 is improved, and the staff can use the device more conveniently.

[0033] Working principle: When using the cubic boron nitride tool with a positive rake angle chip breaker, the staff allows the coolant to flow into the guide groove 11 through the inside of the liquid inlet pipe 5 for storage, and the coolant can be discharged through the inside of the discharge pipe 13. At the same time, the guide groove 11 is inclined to make the discharge of the coolant more thorough. The liquid separator 14 is inclinedly arranged inside the connecting rod 3, so that the coolant in the guide groove 11 can flow into the inside of the liquid separator 14 and disperse the coolant, so that the coolant can more smoothly dissipate the heat transferred from the blade 9 to the connecting rod 3, so that the heat dissipation speed of the blade 9 is improved to a certain extent. The liquid accumulation groove 16 forms a V shape with the liquid separator 14, and the coolant that enters the flow groove 15 from the liquid separator 14 through the liquid accumulation groove 16 can flow into the inside of the guide groove 11 more smoothly, so that the later discharge of the coolant is smoother. After the staff installs the device, the blade 9 can process the workpiece.

[0034] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A cubic boron nitride tool with a positive rake angle chip breaker, comprising a tool bar (1), one end of the tool bar (1) is provided with a truncated cone (2), an end of the truncated cone (2) away from the tool bar (1) is fixedly connected to a connecting rod (3), a mounting groove (8) is formed on the top of the connecting rod (3), a blade (9) is arranged inside the mounting groove (8), and the characteristics are: The top of the connecting rod (3) is fixedly connected to a liquid inlet pipe (5), a first plug (6) is arranged inside the liquid inlet pipe (5), a liquid discharge pipe (13) is provided at the bottom of the connecting rod (3), a second plug (12) is arranged inside the liquid discharge pipe (13), a first chip guide groove (4) is provided at the top of the connecting rod (3), the lower surface inside the first chip guide groove (4) is an inclined surface, a liquid inlet groove (10) connected to the inside of the liquid inlet pipe (5) is provided on the connecting rod (3), a guide groove (11) is provided inside the connecting rod (3), the inside of the guide groove (11) is connected to the inside of the liquid inlet groove (10) and the inside of the liquid discharge pipe (13), and the guide groove (11) is arranged inside the connecting rod (3) in an inclined shape.

2. A cubic boron nitride tool with a positive rake angle chip breaker according to claim 1, characterized in that: A second chip guide groove (7) is provided on the top of the connecting rod (3); the interior of the second chip guide groove (7) is communicated with the interior of the mounting groove (8); and the lower surface of the interior of the second chip guide groove (7) is an inclined surface.

3. A cubic boron nitride tool with a positive rake angle chip breaker according to claim 1, characterized in that: A liquid separation groove (14) is provided inside the connecting rod (3), and the interior of the liquid separation groove (14) is communicated with the interior of the guide groove (11).

4. A cubic boron nitride tool with a positive rake angle chip breaker according to claim 3, characterized in that: The liquid separation groove (14) is arranged in an inclined shape inside the connecting rod (3).

5. The cubic boron nitride tool with a positive rake angle chip breaker according to claim 3, characterized in that: A flow groove (15) is provided inside the connecting rod (3), and the interior of the flow groove (15) is connected to the interior of the liquid separation groove (14).

6. A cubic boron nitride tool with a positive rake angle chip breaker according to claim 5, characterized in that: A liquid accumulation groove (16) is provided inside the connecting rod (3), the interior of the liquid accumulation groove (16) is communicated with the interior of the flow groove (15), and the interior of the liquid accumulation groove (16) is communicated with the interior of the guide groove (11).

7. A cubic boron nitride tool with a positive rake angle chip breaker according to claim 6, characterized in that: The liquid accumulation groove (16) and the liquid separation groove (14) form a V shape.

8. A cubic boron nitride tool with a positive rake angle chip breaker according to claim 7, characterized in that: A branch groove (17) is provided inside the connecting rod (3), and the inside of the branch groove (17) is communicated with the inside of the flow groove (15).

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