An extremely hard deep hole honing tool

Abstract

This application provides an ultra-hard deep hole honing cutter, including a honing cutter body, which includes a connecting part, a cutter body, and a cutting part. The outer surface of the cutting part has a first spiral chip removal groove and a second spiral chip removal groove. The outer surface of the cutting part has a plurality of first liquid inlet holes and a plurality of second liquid inlet holes. A liquid guiding cavity is formed inside the cutting part. When coolant is sprayed onto the cutting part of the honing cutter body through an external nozzle, the coolant can first contact the outer surface of the cutting part. Through the cooperation of the plurality of first liquid inlet holes and the plurality of second liquid inlet holes, the coolant can enter the liquid guiding cavity and contact the inner wall of the liquid guiding cavity. Through the cooperation of the inside and outside, the cooling rate of the cutting part can be improved, and the cooling effect can be further enhanced. The first spiral chip removal groove and the second spiral chip removal groove form a double-threaded chip removal channel on the cutting part, which can improve the chip removal effect of the cutting part itself.

Description

Technical Field

[0001] This utility model relates to the field of honing technology, and more specifically, to an extremely hard deep hole honing tool. Background Technology

[0002] A reamer is a precision machining tool that combines ordinary honing with reaming. The process, known as honing or single-stroke honing, is primarily used for high-precision internal hole machining at the micron level. The tool's outer surface is coated with diamond abrasive, and machining is achieved through grinding. It is suitable for precision components such as engine fuel injection pumps and hydraulic valve bodies, and for handling complex hole shapes such as through holes and blind holes. A reamer consists of a connecting part, a tool body (shank), and a cutting (honing) part. However, existing technologies have the following shortcomings in their use:

[0003] When cooling a honing cutter, the main method is to spray coolant through a nozzle. After the honing cutter has finished machining the inner hole, the coolant sprayed through the nozzle can only contact the outer surface of the honing cutter, resulting in a slow cooling rate. In addition, the cutting part on the honing cutter is generally equipped with a single spiral chip removal groove, and the overall chip removal performance needs to be improved.

[0004] Therefore, there is an urgent need for an extremely hard deep hole honing tool to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to address the current method of cooling reamers by spraying coolant through a nozzle. After the reamer has finished machining the inner hole, the coolant sprayed through the nozzle can only contact the outer surface of the reamer, resulting in a slow cooling rate. In addition, the cutting part of the reamer is generally provided with a single spiral chip removal groove, and the overall chip removal performance needs to be improved.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] An extremely hard deep hole honing tool to improve the above-mentioned problems.

[0008] The application is as follows:

[0009] An ultra-hard deep hole honing cutter includes a honing cutter body, the honing cutter body including a connecting part, a cutter body and a cutting part, the outer surface of the cutting part is provided with a first spiral chip removal groove and a second spiral chip removal groove, the outer surface of the cutting part is provided with a plurality of first liquid inlet holes and a plurality of second liquid inlet holes, the cutting part is provided with a liquid guiding cavity, and a reinforcement mechanism is provided inside the liquid guiding cavity.

[0010] As a preferred technical solution of this application, the reinforcement mechanism includes a plurality of reinforcement rods that are horizontally fixedly installed on the inner wall of the liquid guiding cavity, and the plurality of reinforcement rods are arranged linearly at equal intervals.

[0011] As a preferred technical solution of this application, the bottom of the cutting part is provided with a drain port, which is connected to the inside of the liquid guiding cavity.

[0012] As a preferred technical solution of this application, the first spiral chip removal groove and the second spiral chip removal groove are arranged in opposite directions, and the first spiral chip removal groove and the second spiral chip removal groove are connected.

[0013] As a preferred technical solution of this application, both the first liquid inlet and the second liquid inlet are connected to the inside of the liquid guiding cavity, and the plurality of the first liquid inlet and the plurality of the second liquid inlet are arranged in a longitudinal linear equidistant pattern.

[0014] As a preferred technical solution of this application, the liquid guiding cavity is cylindrical, and a plurality of first liquid inlets and a plurality of second liquid inlets are arranged alternately.

[0015] As a preferred technical solution of this application, the blade body is fixedly installed at the bottom of the connecting part, the cutting part is fixedly installed at the bottom of the blade body, and the lower end of the cutting part is tapered.

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0017] 1. When coolant is sprayed onto the cutting part of the reamer body through an external nozzle, the coolant can first contact the outer surface of the cutting part. Through the cooperation of multiple first inlet holes and multiple second inlet holes, the coolant can enter the liquid guiding cavity. The coolant can contact the inner wall of the liquid guiding cavity and finally be discharged through the drain port. This can improve the cooling rate of the cutting part and further enhance the cooling effect.

[0018] 2. By cooperating with the first and second spiral chip removal grooves, a double-threaded chip removal channel is formed on the cutting part. When the rotating honing cutter body is used for internal hole machining, the chip removal effect of the cutting part itself can be further improved, which is beneficial to practical use. Attached Figure Description

[0019] Figure 1 A schematic diagram of the overall structure of an ultra-hard deep hole honing tool provided in this application. Figure 1 .

[0020] Figure 2 A schematic diagram of the overall structure of an ultra-hard deep hole honing tool provided in this application. Figure 2 .

[0021] Figure 3 A schematic cross-sectional structure of the cutting section in an ultra-hard deep hole honing tool provided in this application. Figure 1 .

[0022] Figure 4A schematic cross-sectional structure of the cutting section in an ultra-hard deep hole honing tool provided in this application. Figure 2 .

[0023] The image shows:

[0024] 1. Reamer body; 2. Connecting part; 3. Tool body; 4. Cutting part; 5. First spiral chip removal groove; 6. Second spiral chip removal groove; 7. First liquid inlet; 8. Second liquid inlet; 9. Liquid guiding cavity; 10. Reinforcing rod; 11. Liquid outlet. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model.

[0026] In the description of this utility model, it should be noted that the terms "upper," "lower," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use, or the orientation or positional relationship commonly understood by those skilled in the art. These terms are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this utility model. In addition, the terms "first," "second," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0027] Example:

[0028] like Figure 1-4As shown, this embodiment proposes an ultra-hard deep hole honing cutter, including a honing cutter body 1. The honing cutter body 1 includes a connecting part 2, a cutter body 3, and a cutting part 4. After the inner hole is machined by the honing cutter body 1, coolant is sprayed onto the cutting part 4 on the honing cutter body 1 through an external nozzle. The coolant can first contact the outer surface of the cutting part 4 to cool it down from the outside. The outer surface of the cutting part 4 is provided with a first spiral chip removal groove 5 and a second spiral chip removal groove 6. The first spiral chip removal groove 5 and the second spiral chip removal groove 6 are arranged in opposite directions and are connected. The first spiral chip removal groove 5 and the second spiral chip removal groove 6 can be used to balance the cutting force to a certain extent and adapt to different machining directions. The outer surface of the cutting part 4 is provided with a plurality of first liquid inlet holes 7 and a plurality of second liquid inlet holes 8. The cutting part 4 is provided with a guide tube. The liquid chamber 9, the first liquid inlet hole 7, and the second liquid inlet hole 8 are all connected to the interior of the liquid guiding chamber 9. Through the cooperation of multiple first liquid inlet holes 7 and multiple second liquid inlet holes 8, coolant can enter the interior of the liquid guiding chamber 9. The multiple first liquid inlet holes 7 and multiple second liquid inlet holes 8 are arranged longitudinally linearly at equal intervals. The liquid guiding chamber 9 is equipped with a reinforcing mechanism and is cylindrical. The multiple first liquid inlet holes 7 and multiple second liquid inlet holes 8 are arranged alternately. When the coolant is in continuous contact with the inner wall of the liquid guiding chamber 9, it can spray the cutting part 4 from the inside to cool it down. Through the cooperation of the inside and outside, the cooling rate of the cutting part 4 can be improved, and the cooling effect can be further enhanced. Through the cooperation of the first spiral chip removal groove 5 and the second spiral chip removal groove 6 opened on the cutting part 4, a double spiral chip removal channel is formed, which can smoothly remove the chips generated during the cutting process, avoid chip accumulation, and effectively improve chip removal performance.

[0029] like Figure 3 and Figure 4 As shown, the reinforcement mechanism includes several reinforcement rods 10 that are horizontally fixedly installed on the inner wall of the liquid guiding cavity 9. The reinforcement rods 10 are arranged linearly and equidistantly. By cooperating with the multiple equidistantly arranged reinforcement rods 10, the structural rigidity of the cutting part 4 can be improved, and its resistance to deformation can be enhanced.

[0030] like Figure 1 and Figure 3 As shown, a drain port 11 is provided at the bottom of the cutting part 4. The drain port 11 is connected to the inside of the liquid guiding cavity 9. The coolant that enters the liquid guiding cavity 9 is finally discharged through the drain port 11 to avoid accumulation inside the liquid guiding cavity 9.

[0031] like Figure 1 and Figure 2 As shown, the tool body 3 is fixedly installed at the bottom of the connecting part 2, and the cutting part 4 is fixedly installed at the bottom of the tool body 3. The lower end of the cutting part 4 is tapered. The connecting part 2 is fixedly installed on the machine tool spindle to facilitate subsequent machining of the inner hole.

[0032] Specifically, when using this ultra-hard deep hole honing tool: after the inner hole is machined by the honing tool body 1, coolant is sprayed onto the cutting part 4 on the honing tool body 1 through an external nozzle. The coolant first contacts the outer surface of the cutting part 4, cooling it from the outside. Through the cooperation of multiple first inlet holes 7 and multiple second inlet holes 8, the coolant can enter the liquid guiding cavity 9. When the coolant continues to contact the inner wall of the liquid guiding cavity 9, it can cool the cutting part 4 from the inside and enter the liquid guiding cavity 9. The internal coolant is finally discharged through the drain port 11. Through the cooperation of the internal and external coolants, the cooling rate of the cutting part 4 can be improved, and the cooling effect can be further enhanced. The first spiral chip removal groove 5 and the second spiral chip removal groove 6 opened on the cutting part 4 are combined to form a double spiral chip removal channel, which can remove the chips generated during the cutting process, avoid chip accumulation, and effectively improve chip removal performance. At the same time, the first spiral chip removal groove 5 and the second spiral chip removal groove 6 can balance the cutting force to a certain extent and adapt to different machining directions.

[0033] The above embodiments are only used to illustrate the present utility model and are not intended to limit the technical solutions described in the present utility model. Although the present utility model has been described in detail with reference to the above embodiments, the present utility model is not limited to the specific embodiments described above. Therefore, any modifications or equivalent substitutions to the present utility model, and all technical solutions and improvements that do not depart from the spirit and scope of the utility model, are covered within the scope of the claims of the present utility model.

Claims

1. A very hard deep hole reaming and honing tool comprising a reaming and honing tool body (1), characterized in that, The honing cutter body (1) includes a connecting part (2), a cutter body (3) and a cutting part (4). The outer surface of the cutting part (4) is provided with a first spiral chip removal groove (5) and a second spiral chip removal groove (6). The outer surface of the cutting part (4) is provided with a plurality of first liquid inlet holes (7) and a plurality of second liquid inlet holes (8). The cutting part (4) is provided with a liquid guiding cavity (9). The liquid guiding cavity (9) is provided with a reinforcing mechanism.

2. A very hard deep hole reaming and honing tool according to claim 1, characterized in that, The reinforcement mechanism includes several reinforcement rods (10) that are horizontally fixedly installed on the inner wall of the liquid guiding cavity (9), and the several reinforcement rods (10) are arranged linearly at equal intervals.

3. The extremely hard deep hole reaming and honing tool according to claim 1, wherein, The bottom of the cutting part (4) is provided with a drain port (11), which is connected to the inside of the liquid guiding cavity (9).

4. The extremely hard deep hole reaming and honing tool according to claim 1, wherein, The first spiral chip removal groove (5) and the second spiral chip removal groove (6) are arranged in opposite directions, and the first spiral chip removal groove (5) and the second spiral chip removal groove (6) are connected.

5. The extremely hard deep hole reaming and honing tool according to claim 1, wherein, The first liquid inlet (7) and the second liquid inlet (8) are both connected to the inside of the liquid guiding cavity (9), and the first liquid inlet (7) and the second liquid inlet (8) are arranged in a longitudinal linear equidistant pattern.

6. A very hard deep hole reaming and honing tool according to claim 1, wherein, The liquid guiding cavity (9) is cylindrical, and a plurality of first liquid inlet holes (7) and a plurality of second liquid inlet holes (8) are arranged alternately.

7. A very hard deep hole reaming and honing tool according to claim 1, wherein, The blade body (3) is fixedly installed at the bottom of the connecting part (2), and the cutting part (4) is fixedly installed at the bottom of the blade body (3). The lower end of the cutting part (4) is tapered.

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