Deep hole drill tool for machining high-temperature alloy

Abstract

The utility model provides a deep hole drilling tool for processing high-temperature alloy, which belongs to the technical field of deep hole drilling tools and comprises a tool body, and a tool bit of the tool body is provided with an oil passing surface, an inner edge rear angle surface, a tool nose rear angle surface, a second rear angle surface and a first rear angle surface based on a grinding angle. A cutting groove extending out of the tool bit is formed in the side edge of a tool bar of the tool body, the tool bit is further provided with an outer cutting edge and an inner cutting edge based on the cutting groove, and a side cutting edge is arranged between the peripheral cylindrical surface of the tool bar and the cutting groove. Specifically, the grinding angle of the outer cutting edge is 25 degrees + 12 degrees; the grinding angle of the first rear angle surface is 25 degrees + 20 degrees; the grinding angle of the inner cutting edge is 18 degrees + 12 degrees; the grinding angle of the oil passing surface is 55 degrees + 12 degrees; the grinding angle of the rear angle surface of the tool nose is + 25 degrees; and the chamfer angle is 15 degrees. According to the utility model, through the elaborate design and adjustment of the grinding angle, the abrasion and damage of the cutter are reduced. And the optimized cutting angle improves the cutting efficiency and reduces the machining cost.

Description

TECHNICAL FIELD

[0001] The utility model belongs to deep hole drill tool technical field especially relates to a processing high temperature alloy deep hole drill tool. BACKGROUND

[0002] In the modern industrial manufacturing field, the application of high-temperature alloy is increasingly widespread. However, the processing of high-temperature alloy faces many challenges, among which deep hole drilling is a technical problem. In order to solve this problem, personnel have made unremitting efforts and successfully developed a high-temperature alloy deep hole drill tool angle grinding practical patent, which brings a new breakthrough for high-temperature alloy processing. High-temperature alloy has the characteristics of high strength, high hardness, and high temperature resistance, which makes it play an important role in the fields of aerospace, energy, and chemical industry.

[0003] However, at the same time, these characteristics also bring great difficulty to processing. When processing high-temperature alloy, the traditional tool is often prone to problems such as fast wear, short service life, and low processing precision. Deep hole drilling, due to its special processing environment and requirements, puts even higher challenges on the tool. CONTENT OF THE UTILITY MODEL

[0004] The utility model aims at providing a kind of processing high temperature alloy deep hole drill tool, the tool head angle of the tool is ground with oil surface, inner blade clearance face, tool tip clearance face, second clearance face and first clearance face. The outer periphery of the tool shank is provided with a cylindrical surface and a chip groove recessed and protruding from the tool head.

[0005] Among them, the connection between the inner blade clearance face and the chip groove is provided with an inner chip blade, and the connection between the first clearance face and the chip groove is provided with an outer chip blade. A side chip blade is further provided between the cylindrical surface and the chip groove. Near the chip groove, one end of the connection between the inner blade clearance face and the tool tip clearance face is provided with a drill tip. Towards the cylindrical surface, the connection between the oil surface and the inner blade clearance face, the inner blade clearance face and the tool tip clearance face and the tool tip clearance face and the second clearance face is provided with a chamfer between one end and the cylindrical surface.

[0006] Further, the deep hole drill tool selects a double-guided tool as the angle basis, and the tool body is coated with an aluminum nitride coating. The grinding angles are as follows: the grinding angle of the outer chip blade is 25°+12°, the grinding angle of the first clearance face is 25°+20°. The grinding angle of the inner chip blade is 18°+12°. The grinding angle of the oil surface is 55°+12°. The grinding angle of the tool tip clearance face is °+25°. The chamfer is 15°.

[0007] Compared with the prior art, the utility model has the beneficial effects mainly reflected in:

[0008] 1. The utility model discloses a cutting angle of the cutter is carefully designed and adjusted, makes the cutting force more reasonable distribution, reduces the wear and tear and breakage of cutter. Meanwhile, the optimized cutting angle can improve the cutting efficiency, reduce the processing cost.

[0009] 2. The utility model discloses a grinding angle cooperates the design of chip groove, can effectively export the chip to the hole, avoids the adverse effect of chip accumulation to processing. This not only improves the processing quality, also reduces the risk of damage of cutter because of chip jam. BRIEF DESCRIPTION OF DRAWINGS

[0010] Figure 1 It is a structure diagram of the utility model discloses a kind of processing high-temperature alloy deep hole drill cutter.

[0011] Figure 2 For Figure 1 The structure of cutter head, grinding angle data schematic diagram. DETAILED DESCRIPTION

[0012] The utility model discloses a kind of processing high-temperature alloy deep hole drill cutter will be described in more detail below, wherein the preferred embodiment of the utility model is indicated, it should be understood that the skilled in the art can modify the utility model described herein, while still realizing the advantageous effect of the utility model, therefore, the following description should be understood as extensive knowledge to the skilled in the art, and not as the restriction to the utility model.

[0013] Referring to Figures 1-2 A deep hole drill cutter processing high-temperature alloy angle grinding degree and processing scheme, the deep hole drill cutter of the utility model selects double-guiding cutter as angle basis, cutter body has aluminum nitride coating, cutter bar includes cylindrical surface 6 and the chip groove 12 of protruding cutter head. Cutter head includes gun drill geometric angle: outer chip edge 8, inner chip edge 7, first relief face 5, inner blade relief face 2, second relief face 4, oil face 1, nose relief face 3, drill tip 10, chamfer 11, side chip edge 9 and multiple geometric cutting edges.

[0014] The tool mainly consists of a shank, a head and a handle. The shank is made of high-strength material to ensure stability and rigidity during machining. The tool angle is more suitable for machining high-performance materials such as high-temperature alloys, with good wear resistance and heat resistance. The angle design of the tool is carefully optimized, including the cutting edge angle, the relief angle, the rake angle, etc. The reasonable selection of the cutting edge angle can effectively reduce the cutting force and improve the cutting efficiency. The size of the relief angle affects the wear and life of the tool. After repeated testing and optimization, the best range of relief angle is determined. The setting of the rake angle helps to discharge the chips and avoid chip jamming, thereby improving the stability of machining.

[0015] Reference Figure 2 The deep hole drill tool of the utility model selects double-guided tool as the angle basis, and the tool body is provided with aluminum nitride coating. The grinding angles are as follows: the outer chip cutting edge 8 is ground at 25°+12°, the first relief angle surface 5 is ground at 25°+20°, the inner chip cutting edge 7 is ground at 18°+12°, the oil surface 1 is ground at 55°+12°, the tool tip relief angle surface 3 is ground at 0°+25°, and the chamfer 11 is ground at 15°.

[0016] The grinding of each angle also needs to use a high-precision grinder or tool sharpener. According to the use condition and machining requirement of the tool, the appropriate angle size is determined. The gradual grinding method is adopted to gradually adjust the angle until the best state is reached. During the grinding process, attention should be paid to maintaining the consistency and stability of the relief angle.

[0017] The grinding of the angle can be realized by adjusting the installation angle of the tool on the grinder. According to the machining requirement and chip discharge condition, the appropriate rake angle is determined. The tool is fixed on the tool sharpener using a special fixture, and then the accurate angle adjustment and grinding are carried out. During the grinding process, the rake angle must be accurate to ensure the smooth discharge of the chips.

[0018] The preparation work is to prepare the high-temperature alloy deep hole drill tool that needs to be ground, the grinder, the grinding wheel, the fixture and other tools and equipment. The tool is cleaned and inspected to ensure that the tool surface is not damaged and impurities.

[0019] The cutting edge angle grinding specifically is: the cutter is installed on the grinding machine, the position and angle of the cutter are adjusted, a suitable grinding wheel is selected, and grinding is performed according to the determined cutting edge angle range. In the grinding process, the shape and sharpness of the cutting edge are observed constantly, and the rotation speed and feed amount of the grinding wheel are adjusted in time. After the grinding is completed, the cutting edge angle is measured using a measuring tool to ensure that the angle meets the requirements.

[0020] The inspection specifically is: the ground cutter is comprehensively inspected, including the cutting edge angle, the clearance angle, the rake angle, the surface quality and the like. It is ensured that the cutter meets the design requirements and the machining standards.

[0021] The above is only the preferred embodiment of the present application, and does not limit the present application in any way. Any person skilled in the art, without departing from the technical solution of the present application, can make any form of equivalent replacement or modification of the technical solution and technical content disclosed by the present application, and such changes still belong to the protection scope of the present application.

Claims

1. A drilling tool for machining deep holes in high-temperature alloys, characterized in that, The tool includes a tool holder and a tool head. The tool head is provided with an oiling surface, an inner cutting edge relief angle surface, a cutting tip relief angle surface, a second relief angle surface and a first relief angle surface based on the grinding angle. The outer periphery of the tool holder includes a cylindrical surface and a chip groove extending out of the tool head. Near the chip groove, a drill tip is provided at the connection between the inner cutting edge rear angle face and the tip rear angle face, an outer chip cutting edge is provided at the connection between the first rear angle face and the chip groove, an inner chip cutting edge is provided at the connection between the inner cutting edge rear angle face and the chip groove, and a side chip cutting edge is provided between the cylindrical surface and the chip groove. The oiled surface and the inner cutting edge rear angle surface, the inner cutting edge rear angle surface and the tip rear angle surface, and the connection between the tip rear angle surface and the second rear angle surface and the cylindrical surface are all provided with chamfers; The drilling tool for machining deep holes in high-temperature alloys is a dual-guide tool, and the tool body of the dual-guide tool is coated with an aluminum nitride coating.

2. The drilling tool for machining deep holes in high-temperature alloys according to claim 1, characterized in that, The grinding angle of the outer cutting edge is 25° + 12°.

3. The drilling tool for machining deep holes in high-temperature alloys according to claim 1, characterized in that, The grinding angle of the first rear corner surface is 25° + 20°.

4. The drilling tool for machining deep holes in high-temperature alloys according to claim 1, characterized in that, The grinding angle of the internal cutting edge is 18° + 12°.

5. The drilling tool for machining deep holes in high-temperature alloys according to claim 1, characterized in that, The grinding angle of the oiled surface is 55° + 12°.

6. The drilling tool for machining deep holes in high-temperature alloys according to claim 1, characterized in that, The grinding angle of the back face of the blade tip is 0°+25°, and the chamfer is 15°.

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