Milling cutter for finish machining of titanium alloy

Abstract

The utility model relates to the technical field of milling cutters, and discloses a milling cutter for titanium alloy finish machining, which comprises a bottom blade rod, a top fixing rod, a snap ring and a machining head, four vent holes are arranged in the middle of the bottom blade rod, a placing groove is arranged at the right end of the bottom blade rod, a first stepped groove is arranged at the right end of the bottom blade rod, and a second stepped groove is arranged at the right end of the bottom blade rod. And a silicon rubber block is arranged in the containing groove, a reinforcing limiting rod is fixedly connected to the middle of the top fixing rod, a second stepped groove is formed in the right end of the top fixing rod, four air holes are fixedly connected to the outer portion of the clamping ring, and an anti-moving assembly is arranged on the outer portion of the top fixing rod. According to the integral milling cutter, damage to the milling cutter head caused by rising of cutting temperature and overlarge accumulated slow pressure of air pressure is reduced, the service life is prolonged, the integral milling cutter can be quickly mounted and dismounted, and milling cutter grains are effectively prevented from falling off due to centrifugal force during high-speed operation.

Description

Technical Field

[0001] The utility model relates to the technical field of milling cutters, in particular to a milling cutter used for finishing of titanium alloys. Background Art

[0002] Titanium alloy refers to a variety of alloy metals made of titanium and other metals. Titanium is an important structural metal developed in the 1950s. Titanium alloy has high strength, good corrosion resistance and high heat resistance. In the 1950s and 1960s, the main focus was on the development of high-temperature titanium alloys for aircraft engines and structural titanium alloys for aircraft bodies. Milling cutters are needed to cut titanium alloys during the processing of titanium alloys.

[0003] After searching, the Chinese patent with announcement number: CN218109465U discloses a finishing milling cutter for processing titanium alloy, including: a shank portion, the shank portion is used to install and fix the milling cutter; a cutter head portion, the cutter head portion is fixedly connected to one end of the shank portion, and the cutter head portion is provided with a plurality of cutting edges for processing titanium alloy. The utility model increases the angle of the cutting edge front angle of the cutting edge to 11°-13° and increases the cutting edge back angle of the cutting edge to 18°-20° by spirally setting the cutting edge on the cutter head portion, thereby reducing the friction between the cutting edge and the workpiece surface, making the blade sharper, and improving the cutting effect of the milling cutter on titanium alloy. At the same time, the increase of the cutting edge front angle and the cutting edge back angle reduces the cutting resistance of the milling cutter during cutting, reduces the wear of the cutting edge, and prolongs the service life of the milling cutter.

[0004] The working principle of the above patent mentions that "by spirally arranging the cutting edge 5 on the cutter head 4, the angle of the cutting edge front angle 7 of the cutting edge 5 is increased to 11°-13°, and the cutting edge back angle 8 of the cutting edge 5 is increased to 18°-20°, so that the friction between the cutting edge 5 and the surface of the workpiece is reduced, the cutting edge is sharper, and the cutting effect of the milling cutter on titanium alloy is improved. At the same time, the increase of the cutting edge front angle 7 and the cutting edge back angle 8 reduces the cutting resistance of the milling cutter during cutting, reduces the wear of the cutting edge 5, and prolongs the service life of the milling cutter. When the milling cutter is cutting, the user can reduce the friction between the cutting edge 5 and the workpiece surface by reducing the friction between the cutting edge 5 and the workpiece surface. The warm through hole 3 is filled with coolant to absorb the heat generated during processing, thereby avoiding the phenomenon of accelerated wear of the milling cutter due to overheating and extending the service life of the milling cutter. However, the file cutting edge is designed as a solid structure as a whole, but due to the high hardness and poor thermal conductivity of titanium alloy, a high cutting temperature and cutting pressure will be generated during use, resulting in a gradual increase in gas pressure in the cutting area, causing pressure accumulation to damage the milling cutter, thereby reducing its service life. In view of the above problems, a milling cutter for titanium alloy finishing is proposed to solve the above problems. Utility Model Content

[0005] The purpose of the utility model is to solve the shortcomings of the prior art and to propose a milling cutter for finishing titanium alloys, aiming to improve the problem of damage to the milling cutter caused by the cutting temperature and cutting pressure generated by the solid structure of the milling cutter as a whole in the prior art.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A milling cutter for finishing titanium alloys, comprising a bottom blade rod, a top fixing rod, a clamping ring and a processing head, wherein four ventilation holes are provided in the middle of the bottom blade rod, a placement groove is provided at the right end of the bottom blade rod, a step groove 1 is provided at the right end of the bottom blade rod, a silicone rubber block is provided inside the placement groove, a reinforcement limit rod is fixedly connected to the middle of the top fixing rod, a step groove 2 is provided at the right end of the top fixing rod, four ventilation holes are fixedly connected to the outside of the clamping ring, an anti-movement component is provided on the outside of the top fixing rod, a clamping groove is provided on the left side of the processing head, threaded rods are threadedly connected to the upper and lower ends of the processing head, and a fixing component is fixedly connected to the outside of the threaded rod.

[0008] Furthermore, the anti-motion component includes four texture strips and a texture ring, the outer portion of the texture strip is arranged on the outer right side of the top fixing rod, and the texture ring is arranged on the outer right end of the top fixing rod.

[0009] Furthermore, the fixing assembly includes two auxiliary rings and two clamps, the middle portion of the auxiliary ring is threadedly connected to the outside of the threaded rod, and the far sides of the two clamps are fixedly connected to the near sides of the two threaded rods.

[0010] Furthermore, the right side of the silicone rubber block contacts the left side of the reinforcement limit rod, and the left end of the reinforcement limit rod is slidably connected to the inner wall of the placement groove.

[0011] Furthermore, the inner wall of the clamping ring contacts the outer right end of the placement groove and the outer left end of the top fixing rod.

[0012] Furthermore, the outside of the air vent is in contact with the right side of the first step groove and the left side of the second step groove.

[0013] Furthermore, the outside of the clamping member contacts the inner wall of the clamping slot, and the adjacent sides of the two clamping members contact the outside of the top fixing rod.

[0014] The utility model has the following beneficial effects:

[0015] 1. In the utility model, through the cooperation of the vent hole, silicone rubber block, top fixing rod, clamping ring, reinforcement limit rod and other components, the gas in the cutting area can be balanced and released in time, which helps to reduce the increase of cutting temperature and the accumulation of air pressure, and buffer the damage to the milling cutter head caused by excessive impact force during stamping, thereby ensuring its service life.

[0016] 2. In the utility model, by means of the cooperation of the texture strips, texture rings, auxiliary rings, threaded rods, clamps and other components, the overall milling cutter can be quickly installed and disassembled, effectively preventing the milling cutter particles from falling off due to centrifugal force during high-speed operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A stereoscopic diagram of a milling cutter for finishing titanium alloys proposed by the utility model;

[0018] Figure 2 This is a schematic diagram of the texture strip structure of a milling cutter for finishing titanium alloys proposed by the utility model;

[0019] Figure 3 This is an exploded view of a reinforcement limit rod of a milling cutter for finishing titanium alloys proposed by the utility model;

[0020] Figure 4 The utility model is a schematic diagram of a slot structure of a milling cutter for finishing titanium alloys.

[0021] Legend:

[0022] 1. Bottom blade rod; 2. Ventilation hole; 3. Placement groove; 4. Step groove one; 5. Silicone rubber block; 6. Top fixing rod; 7. Reinforcement limit rod; 8. Step groove two; 9. Snap ring; 10. Ventilation hole; 11. Texture strip; 12. Texture ring; 13. Processing head; 14. Snap groove; 15. Threaded rod; 16. Auxiliary ring; 17. Clip. DETAILED DESCRIPTION

[0023] 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.

[0024] Reference Figure 1-Figure 3The utility model provides an embodiment: a milling cutter for finishing titanium alloy, comprising a bottom blade rod 1, a top fixing rod 6, a retaining ring 9 and a processing head 13. Four vent holes 2 are opened in the middle of the bottom blade rod 1. The vent holes 2 absorb the air pressure generated during the use of the milling cutter. A placement groove 3 is opened at the right end of the bottom blade rod 1. The air pressure in the vent holes 2 flows into the placement groove 3. A stepped groove 4 is opened at the right end of the bottom blade rod 1. A silicone rubber block 5 is arranged inside the placement groove 3.

[0025] A reinforcement limit rod 7 is fixedly connected to the middle part of the top fixing rod 6, a step groove 2 8 is provided at the right end of the top fixing rod 6, and four air holes 10 are fixedly connected to the outside of the clamping ring 9, so that when the air pressure is transmitted from the air hole 2 to the placement groove 3, it will be discharged from the air hole 10 of the clamping ring 9 wrapped outside the connection between the step groove 1 4 and the top fixing rod 6 through the movement of the silicone rubber block 5 and the reinforcement limit rod 7 in the placement groove 3. An anti-movement component is arranged on the outside of the top fixing rod 6, a clamping groove 14 is provided on the left side of the processing head 13, and a threaded rod 15 is threadedly connected to the upper and lower ends of the processing head 13, and a fixing component is fixedly connected to the outside of the threaded rod 15, and the fixing component assists the processing head 13 to clamp and fix the top fixing rod 6.

[0026] refer to Figure 2 , Figure 3 The right side of the silicone rubber block 5 is in contact with the left side of the reinforcement limit rod 7, and the left end of the reinforcement limit rod 7 is slidably connected to the inner wall of the placement groove 3. After the silicone rubber block 5 absorbs the vibration generated by the bottom blade rod 1, it will drive the reinforcement limit rod 7 to slide and then be placed in the groove 3. The inner wall of the clamping ring 9 is in contact with the outer right end of the placement groove 3 and the outer left end of the top fixing rod 6. The clamping ring 9 connects and wraps the bottom blade rod 1 and the top fixing rod 6. The outside of the air vent 10 is in contact with the right side of the step groove 1 4 and the left side of the step groove 2 8. The air vent 10 is made of soft material, and the air pressure in the air vent 2 flows through the placement groove 3 to the position of the air vent 10 and is discharged.

[0027] The anti-movement component includes four texture strips 11 and a texture ring 12. The outside of the texture strip 11 is arranged on the right side of the outside of the top fixing rod 6, and the texture ring 12 is arranged at the right end of the outside of the top fixing rod 6. The texture ring 12 and the texture strip 11 on the outside of the top fixing rod 6 increase the friction in the slot 14 between the top fixing rod 6 and the processing head 13, thereby effectively preventing the milling cutter from falling off due to centrifugal force when running at high speed. Compared with the above document, the air vent 2 and the silicone rubber block 5 are added to solve the problem of rapid damage to the milling cutter due to excessive air pressure and vibration during use.

[0028] refer to Figure 4The fixing assembly includes two auxiliary rings 16 and two clamps 17. The middle part of the auxiliary ring 16 is threadedly connected to the outside of the threaded rod 15. The far sides of the two clamps 17 are fixedly connected to the close sides of the two threaded rods 15. The outside of the clamps 17 contacts the inner wall of the slot 14. The close sides of the two clamps 17 contact the outside of the top fixing rod 6. Rotating the auxiliary ring 16 drives the threaded rod 15 to push the clamps 17 to clamp and fix the outside of the top fixing rod 6.

[0029] Working principle: When the milling cutter is in use, the pressure and air pressure to which the milling cutter is subjected during use are absorbed through the air vent 2 arranged inside the bottom blade rod 1 and the silicone rubber block 5 on the inner wall of the placement groove 3, and the vibration pressure is transmitted to the silicone rubber block 5 through the front end of the bottom blade rod 1. Silicone rubber 5 is a commonly used high-temperature resistant elastic material, which can maintain elasticity and stability in a high temperature environment. The silicone rubber block 5 is squeezed and retracted in the placement groove 3 to press against the reinforcement limit rod 7 in the placement groove 3 to squeeze it, so that the reinforcement limit rod 7 slides in the placement groove 3 and cooperates with the silicone rubber block 5 to absorb the impact and vibration from the cutting process, and the air pressure will be transmitted from the air vent 2 to the placement groove 3, and then through the movement of the silicone rubber block 5 and the reinforcement limit rod 7 in the placement groove 3, and finally discharged from the air vent 10 of the clamping ring 9 wrapped outside the connection between the step groove 4 and the top fixing rod 6, thereby improving the stability and life of the cutting tool.

[0030] Before using the milling cutter, the user can insert the top fixing rod 6 into the slot 14 of the processing head 13, and then rotate the auxiliary ring 16 to drive the threaded rod 15 to push the clamp 17 to clamp and fix the outside of the top fixing rod 6. When the clamp 17 contacts the outside of the top fixing rod 6, the friction between the top fixing rod 6 and the clamp 17 can be increased by the texture ring 12 and the texture strip 11 on the outside of the top fixing rod 6, thereby effectively preventing the milling cutter particles from falling off due to centrifugal force during high-speed operation.

[0031] 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 milling cutter for finishing titanium alloy, comprising a bottom blade rod (1), a top fixing rod (6), a retaining ring (9) and a machining head (13), characterized in that: The middle part of the bottom blade rod (1) is provided with four ventilation holes (2), the right end of the bottom blade rod (1) is provided with a placement groove (3), the right end of the bottom blade rod (1) is provided with a stepped groove 1 (4), the interior of the placement groove (3) is provided with a silicone rubber block (5), the middle part of the top fixing rod (6) is fixedly connected with a reinforcement limit rod (7), the right end of the top fixing rod (6) is provided with a stepped groove 2 (8), the outside of the clamping ring (9) is fixedly connected with four ventilation holes (10), the outside of the top fixing rod (6) is provided with an anti-movement component, the left side of the processing head (13) is provided with a clamping groove (14), the upper and lower ends of the processing head (13) are both threadedly connected with a threaded rod (15), and the outside of the threaded rod (15) is fixedly connected with a fixing component.

2. A milling cutter for finishing titanium alloy according to claim 1, characterized in that: The anti-motion component comprises four texture strips (11) and a texture ring (12), wherein the outside of the texture strips (11) is arranged on the right side of the outside of the top fixing rod (6), and the texture ring (12) is arranged on the right end of the outside of the top fixing rod (6).

3. A milling cutter for finishing titanium alloy according to claim 1, characterized in that: The fixing assembly comprises two auxiliary rings (16) and two clamps (17); the middle portion of the auxiliary ring (16) is threadedly connected to the outside of the threaded rod (15); and the far sides of the two clamps (17) are fixedly connected to the near sides of the two threaded rods (15).

4. A milling cutter for finishing titanium alloy according to claim 1, characterized in that: The right side of the silicone rubber block (5) contacts the left side of the reinforcement limit rod (7), and the left end of the reinforcement limit rod (7) is slidably connected to the inner wall of the placement groove (3).

5. A milling cutter for finishing titanium alloy according to claim 1, characterized in that: The inner wall of the clamping ring (9) contacts the outer right end of the placement groove (3) and the outer left end of the top fixing rod (6).

6. A milling cutter for finishing titanium alloy according to claim 1, characterized in that: The outside of the air vent (10) contacts the right side of the first step groove (4) and the left side of the second step groove (8).

7. A milling cutter for finishing titanium alloy according to claim 3, characterized in that: The outside of the clamping member (17) contacts the inner wall of the clamping slot (14), and the adjacent sides of the two clamping members (17) contact the outside of the top fixing rod (6).

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