High-precision deep hole taper milling reamer
By adopting the design of side water outlet system and chip breaker in deep-hole cone milling reamer, the problem of cooling chip removal difficulties and vibration tool in cone hole processing is solved, achieving a more efficient and accurate processing process and extending tool life.
Patent Information
- Application Number
- CN202421268143.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-05
- Publication Date
- 2025-04-18
- Estimated Expiration
- 2034-06-05
AI Technical Summary
During the processing of conical holes in aluminum valve seat blanks, cooling and chip removal is difficult, resulting in increased cutting force, tool wear is aggravated, and processing accuracy is reduced. In addition, vibrating tools are prone to occur during processing, affecting processing efficiency and increasing production costs.
A high-precision deep hole cone milling reamer is designed, using a side water outlet system, which directly sprays the cutting fluid to the cutting position to help remove chips, and sets a chip breaker to break the chips into small pieces to prevent accumulation. At the same time, a triple-edge design is adopted to evenly distribute the cutting force to avoid the phenomenon of vibrating the knife.
Through the design of side water outlet system and chip breaker, the cutting temperature is reduced, the tool life is extended, the processing quality and accuracy is improved, the thermal expansion is reduced, the processing efficiency is improved, and the vibration of the knife is avoided, and the production cost is reduced.
Smart Images
Figure CN222767423U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a reamer, in particular to a high-precision deep hole cone milling reamer. Background Art
[0002] At present, aluminum valve seats are usually produced by casting, and then processed by mechanical processing. For the processing of the tapered hole in the aluminum valve seat blank, due to the long depth of the tapered hole, cooling and chip removal are difficult, resulting in increased cutting force, increased tool wear, and reduced processing accuracy. In addition, the tapered hole is deep and the hole diameter is small. During the processing, the contact surface between the reamer and the hole wall is large, there is a large cutting force, and it is easy to vibrate the tool. In order to avoid vibration, the tool speed and feed rate need to be reduced, which affects the processing efficiency and increases production costs.
[0003] Therefore, the above problems need to be solved urgently. Utility Model Content
[0004] Purpose of the utility model: In order to overcome the above shortcomings, the utility model provides a high-precision deep hole cone milling reamer, which adopts side water outlet to spray the cutting fluid directly to the cutting position to help remove chips, and is provided with a chip breaker groove to break the chips into small fragments to prevent chip accumulation. A three-blade design is adopted to avoid tool vibration.
[0005] Technical solution: In order to achieve the above-mentioned purpose, the utility model provides a high-precision deep hole cone milling reamer, including a tool body and a blade. A blade is provided at one end of the tool body, and the blade is spirally arranged around the side wall of the tool body. A chip groove is provided between adjacent blades, a cold water hole is provided in the tool body, and a side water outlet hole is provided on the side wall of the tool body, and the side water outlet hole and the cold water hole are connected. During processing, the tool blade removes the material, and the cutting fluid is injected from the cold water hole. The cutting fluid is ejected from the side water outlet hole, and the chips are discharged from the chip groove. The utility model is provided with a side water outlet hole to spray the cutting fluid directly to the cutting position, thereby reducing the cutting temperature, extending the tool life, and improving the processing quality. At the same time, the side water outlet hole can help remove chips, prevent chip accumulation, avoid heat accumulation, reduce thermal expansion, improve processing efficiency and precision, and extend tool life.
[0006] Furthermore, in the above-mentioned high-precision deep hole taper milling reamer, the cold water hole is arranged along the axis of the cutter body, the cold water hole is a blind hole, and the opening of the cold water hole is arranged at one end of the cutter body away from the blade. During the processing of the utility model, the blade arranged on the side wall of the cutter body is the processing blade, that is, the cutting area is located outside the cutter body, and the cold water hole is a blind hole, so that the cutting fluid is sprayed from the measured water hole to the cutting area, which improves the cooling and chip removal effect, reduces thermal expansion, improves processing efficiency and precision, and prolongs the tool life.
[0007] Furthermore, in the above-mentioned high-precision deep hole taper milling reamer, a chip breaker groove is provided on the blade, and there are 3 or more chip breaker grooves. Multiple chip breaker grooves can break long chips into small chips, which is conducive to chip discharge, prevent chip accumulation and entanglement, reduce heat accumulation, and prevent long chips from scratching the workpiece surface. The chip breaker groove reduces the tool cutting surface to a certain extent, reduces the cutting force, and reduces the vibration of the tool.
[0008] Furthermore, in the above-mentioned high-precision deep hole taper milling reamer, the cross section of the chip breaker groove is semicircular. The semicircular chip breaker groove is helpful for chip formation. Compared with the straight type, the semicircular type can reduce the contact between the chip and the tool, reduce the cutting force, and increase the tool life.
[0009] Furthermore, in the above-mentioned high-precision deep hole taper milling reamer, chip breakers are arranged at intervals along adjacent cutting edges. The chip breakers arranged at intervals can balance the cutting force, reduce the vibration of the tool, retain sufficient edge continuity during processing, provide edge strength, and improve processing stability.
[0010] Furthermore, in the above-mentioned high-precision deep hole taper milling reamer, the blade is provided with three, and the number of chip flutes and blades is the same. The three-blade tool can evenly distribute the cutting force during cutting, provide better balance, have better strength, and avoid vibration.
[0011] Furthermore, in the above-mentioned high-precision deep hole cone milling reamer, the blade includes a cone blade and a peripheral blade, the cone blade and the peripheral blade are integrally arranged, the cone blade is arranged at the end of the cutter body, and the peripheral blade is arranged near the middle of the cutter body, the cone blade axial cross-section is conical, and the peripheral blade axial cross-section is rectangular.
[0012] Furthermore, in the above-mentioned high-precision deep hole taper milling reamer, the taper blade axis section angle is 7 degrees.
[0013] Furthermore, in the above-mentioned high-precision deep hole taper milling reamer, in order to enhance the cooling effect, two or more side water outlet holes are provided along the chip removal groove.
[0014] It can be seen from the above technical scheme that the utility model has the following beneficial effects: the high-precision deep hole taper milling reamer of the utility model is set with three blades, which can evenly distribute the cutting force, provide better balance and tool strength, and avoid tool vibration. A side water outlet is set to spray the cutting fluid directly to the cutting position, reduce the cutting temperature, extend the tool life, and improve the processing quality. At the same time, the side water outlet can help remove chips, prevent heat accumulation caused by chip accumulation, reduce thermal expansion, improve processing efficiency and accuracy, and extend tool life. The chip breaker breaks long chips into small chips, which is conducive to chip discharge, prevents chip accumulation and entanglement, reduces heat accumulation, and prevents long chips from scratching the workpiece surface. The chip breaker groove reduces the tool cutting surface to a certain extent, reduces the cutting force, and reduces the tool vibration phenomenon. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 It is a front view of a high-precision deep hole cone milling reamer of the utility model.
[0016] In the figure: 1, tool body, 2, blade, 21, conical blade, 22, peripheral blade, 3, chip groove, 4, cooling water hole, 5, side water outlet hole, 11, chip breaker groove. DETAILED DESCRIPTION
[0017] Example 1
[0018] like Figure 1 A high-precision deep hole cone milling reamer shown includes a cutter body 1 and a blade 2. A blade 2 is provided at one end of the cutter body 1. The blade 2 is provided with three blades, and the blades 2 are spirally arranged around the side wall of the cutter body 1. A chip groove 3 is provided between adjacent blades 2, and the number of the chip grooves 3 and the blades 2 is the same. A chip breaker groove 11 is provided on the blade 2, and a plurality of chip breaker grooves 11 are provided. The cross-section of the chip breaker groove 11 is semicircular, and the chip breaker grooves 11 are arranged at intervals along adjacent blades 2. There are 3 or more chip breaker grooves 11. The cutter body 1 is provided with a cold water hole 4, and the cold water hole 4 is arranged along the axis of the cutter body 1. The cold water hole 4 is a blind hole, and the opening of the cold water hole 4 is arranged at the end of the cutter body 1 away from the blade 2. A side water outlet hole 5 is provided on the side wall of the cutter body 1, and the side water outlet hole 5 is connected to the cold water hole 4. In order to enhance the cooling effect, 2 or more side water outlet holes 5 are provided along the chip groove 3. The blade 2 includes a conical blade 21 and a peripheral blade 22. The conical blade 21 and the peripheral blade 22 are integrally arranged. The conical blade 21 is arranged at the end of the blade body 1, and the peripheral blade 22 is arranged near the middle of the blade body 1. The axial section of the conical blade 21 is conical, and the axial section of the peripheral blade 22 is rectangular. The axial section angle of the conical blade 21 is 7 degrees. During processing, the blade 2 removes the material, and the cutting fluid is injected from the cold water hole 4, and the cutting fluid is ejected from the side water outlet 5, and the chips are discharged from the chip removal groove.
[0019] The above embodiments are exemplary, and their purpose is to illustrate the technical concept and features of the utility model so that people familiar with this field can understand the content of the utility model and implement it accordingly, and they cannot limit the protection scope of the utility model in turn. Any equivalent changes or modifications made according to the spirit of the utility model should be included in the protection scope of the utility model.
Claims
1. A high-precision deep hole cone milling reamer, characterized by: The invention comprises a knife body (1) and a knife blade (2), wherein the knife body (1) is provided with a knife blade (2) at one end, and the knife blade (2) is spirally arranged around the side wall of the knife body (1); a chip removal groove (3) is provided between adjacent knife blades (2); the knife body (1) is provided with a cooling water hole (4); the side wall of the knife body (1) is provided with a side water outlet hole (5), and the side water outlet hole (5) is connected to the cooling water hole (4).
2. The high-precision deep hole taper milling reamer according to claim 1, characterized in that: The cold water hole (4) is arranged along the axis of the knife body (1); the cold water hole (4) is a blind hole; and the opening of the cold water hole (4) is arranged at an end of the knife body (1) away from the blade (2).
3. The high-precision deep hole taper milling reamer according to claim 1, characterized in that: The blade (2) is provided with a chip breaker groove (11), and three or more chip breaker grooves (11) are provided.
4. The high-precision deep hole taper milling reamer according to claim 3, characterized in that: The chip breaker groove (11) has a semicircular cross section.
5. The high-precision deep hole taper milling reamer according to claim 3, characterized in that: The chip breaking grooves (11) are arranged at intervals along adjacent cutting edges (2).
6. The high-precision deep hole taper milling reamer according to claim 1, characterized in that: The blade (2) is provided with three strips, and the number of the chip removal grooves (3) is the same as the number of the blades (2).
7. The high-precision deep hole taper milling reamer according to claim 1, characterized in that: The blade (2) comprises a conical blade (21) and a peripheral blade (22); the conical blade (21) and the peripheral blade (22) are integrally arranged; the conical blade (21) is arranged at the end of the blade body (1), and the peripheral blade (22) is arranged close to the middle of the blade body (1); the axial cross section of the conical blade (21) is conical, and the axial cross section of the peripheral blade (22) is rectangular.
8. The high-precision deep hole taper milling reamer according to claim 7, characterized in that: The axial cross-section angle of the tapered blade (21) is 7 degrees.
9. The high-precision deep hole taper milling reamer according to claim 1, characterized in that: Two or more side water outlet holes (5) are provided along the chip removal groove (3).