Impact-resistant tungsten alloy milling cutter

Abstract

The utility model relates to the technical field of milling cutters, in particular to an anti-impact tungsten alloy milling cutter which comprises a cutter handle, a collet chuck is mounted on the inner side of the cutter handle, a nut is in threaded connection with the top of the cutter handle, a milling cutter head is mounted on the inner side of the nut and the inner side of the collet chuck, and a plurality of threaded grooves distributed in a polar axis mode are formed in the outer side of the cutter handle. Through the arrangement of the threaded groove, the bolt, the protective cover, the mounting hole plate, the through groove, the sealing ring and the anti-impact assembly, after the milling cutter head is mounted, the protective cover can be arranged on the outer side of the milling cutter head in a sleeving mode, the bolt is screwed into the threaded groove, and therefore mounting of the protective cover is completed, and the design can seal the connecting position of the milling cutter head and the collet chuck; and when the milling cutter head is not used, the protective barrel can be inserted into the inner side of the fixed barrel, so that the clamping ring is connected with the clamping groove in a clamping manner, and the design of the protective barrel can prevent external articles from impacting the milling cutter head to cause breakage of the milling cutter head.

Description

Technical Field

[0001] This utility model relates to the field of milling cutter technology, specifically to an impact-resistant tungsten alloy milling cutter. Background Technology

[0002] Tungsten alloy end mills are multi-edged cutting tools made of tungsten alloy. They possess many excellent characteristics. First, their extremely high hardness, reaching 10K Vickers, gives them excellent wear resistance, allowing them to maintain sharpness during prolonged cutting and preventing wear, thus ensuring machining accuracy and quality. Second, tungsten alloy end mills exhibit good red hardness, maintaining high hardness and cutting performance even at temperatures of 850-1000℃. This allows for higher cutting speeds, 4-10 times faster than high-speed steel tools, significantly improving production efficiency. Furthermore, they possess high strength and toughness, enabling them to withstand greater cutting forces and preventing deformation or breakage during cutting.

[0003] Existing tungsten alloy end mills are widely used, but the connection between the existing tungsten alloy end mill and the tool holder is usually not sealed. During the use of the tungsten alloy end mill, metal debris may enter the connection, causing the connection to jam and making it impossible to disassemble the tungsten alloy end mill. In addition, tungsten alloy end mills have poor impact resistance. When not in use, if an object hits the tungsten alloy end mill, it may break. Therefore, to address the above problems, an impact-resistant tungsten alloy end mill is proposed. Utility Model Content

[0004] The purpose of this invention is to provide an impact-resistant tungsten alloy end mill to solve the problems mentioned in the background art, such as the easy jamming of the connection and poor impact resistance of the existing devices.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] An impact-resistant tungsten alloy end mill includes a shank, a collet mounted on the inner side of the shank, a nut threadedly connected to the top of the shank, an end mill head mounted on the inner side of the nut and collet, multiple polar-axis distributed threaded grooves on the outer side of the shank, bolts threadedly connected to the inner side of the threaded grooves, a protective cap at the top of the nut, multiple polar-axis distributed mounting holes fixedly connected to the bottom of the protective cap, a vertical through-slot at the top of the protective cap, symmetrically arranged sealing rings embedded in the inner side of the through-slot, and an impact-resistant component mounted on the top of the protective cap above the sealing rings.

[0007] Preferably, the bottom outer side of the milling cutter head is tightly fitted to the inner side of the collet, the plurality of mounting holes are horizontally aligned with the plurality of threaded grooves, the bolt is inserted into the inner side of the mounting holes, and the outer side of the milling cutter head is tightly fitted to the inner side of the sealing ring.

[0008] Preferably, the impact-resistant component includes a fixed cylinder fixedly connected to the center of the top of the protective cover, a retaining ring fixedly connected to the inner wall of the fixed cylinder, a protective cylinder provided inside the retaining ring, and a retaining groove provided on the outer side of the protective cylinder.

[0009] Preferably, the retaining ring is located inside the retaining groove and engages with the retaining groove, the inner side of the fixing cylinder is tightly fitted with the outer side of the protective cylinder, and the milling cutter head is located inside the protective cylinder.

[0010] Preferably, a sponge tube is fixedly connected to the inner wall of the protective cylinder, an oil cylinder is fixedly connected to the top inner side of the protective cylinder, and an isolation membrane is fixedly connected to the bottom end of the oil cylinder.

[0011] Preferably, the inner side of the sponge tube is in close contact with the top outer side of the milling cutter head, and the milling cutter head is inserted into the inner side of the oil cylinder.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. In this utility model, by setting threaded grooves, bolts, protective covers, mounting holes, through grooves, sealing rings, and anti-impact components, after the milling cutter head is installed, the protective cover can be put on the outside of the milling cutter head, and the bolts can be screwed into the inside of the threaded groove to complete the installation of the protective cover. This design can seal the connection between the milling cutter head and the collet, preventing metal debris from entering the collet and causing the collet to jam. When the milling cutter head is not in use, the protective sleeve can be inserted into the inside of the fixed sleeve, so that the retaining ring and the retaining groove can be engaged and connected. The design of the protective sleeve can prevent the milling cutter head from breaking due to impact from external objects.

[0014] 2. In this utility model, by setting up a sponge tube, an oil tube, and an isolation membrane, when installing the protective tube, the milling cutter head pierces the isolation membrane and inserts into the inside of the oil tube. The protective oil inside the oil tube is immersed in the sponge tube, thereby wetting and protecting the surface of the milling cutter head and slowing down the oxidation rate of the milling cutter head. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the installation structure of the protective cylinder of this utility model;

[0016] Figure 2 This is a schematic diagram of the cross-sectional structure of the protective cylinder of this utility model;

[0017] Figure 3 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 4 This is a schematic diagram of the installation structure of the protective cover of this utility model;

[0019] Figure 5 This is a schematic diagram of the cross-sectional structure of the protective cover of this utility model;

[0020] Figure 6 This is a schematic diagram of the milling cutter head mounting structure of this utility model.

[0021] In the diagram: 1. Tool holder; 2. Collet; 3. Nut; 4. Milling cutter head; 5. Threaded groove; 6. Bolt; 7. Protective cover; 8. Mounting plate; 9. Through groove; 10. Sealing ring; 11. Impact-resistant assembly; 111. Fixing sleeve; 112. Snap ring; 113. Protective sleeve; 114. Snap groove; 12. Sponge sleeve; 13. Oil cylinder; 14. Separating membrane. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] In the description of this utility model, it should be understood that the directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description. Unless otherwise stated, these directional terms 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 the scope of protection of this utility model. The directional terms "inner" and "outer" refer to the inner and outer contours of each component itself.

[0024] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be construed as limiting the scope of protection of this utility model.

[0025] Please see Figure 1-6 This utility model provides a technical solution:

[0026] An impact-resistant tungsten alloy end mill includes a shank 1, a collet 2 mounted inside the shank 1, a nut 3 threadedly connected to the top of the shank 1, an end mill head 4 mounted inside the nut 3 and collet 2, multiple threaded grooves 5 arranged in a polar axis pattern on the outer side of the shank 1, bolts 6 threadedly connected to the inner side of the threaded grooves 5, a protective cap 7 at the top of the nut 3, multiple mounting holes 8 arranged in a polar axis pattern fixedly connected to the bottom of the protective cap 7, a vertical through-slot 9 penetrating the top of the protective cap 7, and an inner side of the through-slot 9... A symmetrically arranged sealing ring 10 is connected to the end of the protective cover 7. An anti-impact component 11 is installed above the sealing ring 10 and mounted on the top of the protective cover 7. The bottom outer side of the milling cutter head 4 is tightly fitted with the inner side of the collet 2. Multiple mounting plates 8 are horizontally aligned with multiple threaded grooves 5. Bolts 6 are inserted into the inner side of the mounting plates 8. The outer side of the milling cutter head 4 is tightly fitted with the inner side of the sealing ring 10. The anti-impact component 11 includes a fixed cylinder 111 fixedly connected to the center of the top of the protective cover 7. A retaining ring is fixedly connected to the inner wall of the fixed cylinder 111. 112. A protective sleeve 113 is provided inside the retaining ring 112, and a retaining groove 114 is provided on the outside of the protective sleeve 113. The retaining ring 112 is located inside the retaining groove 114 and is engaged with the retaining groove 114. The inner side of the fixing sleeve 111 is tightly fitted to the outer side of the protective sleeve 113. The milling cutter head 4 is set inside the protective sleeve 113. Through the provided threaded groove 5, bolt 6, protective cover 7, mounting hole plate 8, through groove 9, sealing ring 10 and anti-impact component 11, after the milling cutter head 4 is installed, the protective cover 7 can be... The protective cover 7 is installed by screwing the bolt 6 into the threaded groove 5 on the outside of the milling cutter head 4. This design can seal the connection between the milling cutter head 4 and the collet 2, preventing metal debris from entering the collet 2 and causing it to jam. When the milling cutter head 4 is not in use, the protective sleeve 113 can be inserted into the inside of the fixed sleeve 111, so that the retaining ring 112 engages with the retaining groove 114. The design of the protective sleeve 113 can prevent external objects from hitting the milling cutter head 4 and causing it to break.

[0027] A sponge tube 12 is fixedly connected to the inner wall of the protective tube 113. An oil tube 13 is fixedly connected to the top of the inner side of the protective tube 113. An isolation membrane 14 is fixedly connected to the bottom of the oil tube 13. The inner side of the sponge tube 12 is tightly fitted to the top of the outer side of the milling cutter head 4. The milling cutter head 4 is inserted into the inner side of the oil tube 13. Through the sponge tube 12, the oil tube 13 and the isolation membrane 14, when the protective tube 113 is installed, the milling cutter head 4 pierces the isolation membrane 14 and inserts into the inner side of the oil tube 13. The protective oil inside the oil tube 13 is immersed in the sponge tube 12, thereby wetting and protecting the surface of the milling cutter head 4 and slowing down the oxidation rate of the milling cutter head 4.

[0028] Workflow: Before use, first install the milling cutter head 4. Insert the outer bottom of the milling cutter head 4 into the inside of the collet 2, and insert the collet 2 into the inside of the tool holder 1. Then, put the nut 3 on the outside of the collet 2 and the milling cutter head 4 and screw it onto the outside of the tool holder 1, so that the outer bottom of the milling cutter head 4 is tightly fitted with the inside of the collet 2. This completes the installation of the milling cutter head 4. Next, put the protective cover 7 on the outside of the milling cutter head 4, so that the milling cutter head 4 is inserted into the inside of the through groove 9. Rotate the protective cover 7 to align the mounting plate 8 with the threaded groove 5 horizontally. Finally, insert the bolt 6 into the inside of the mounting plate 8 and screw it into the inside of the threaded groove 5. This completes the installation of the protective cover 7. At this time, the inside of the sealing ring 10 is tightly fitted with the outside of the milling cutter head 4. This design can protect the milling cutter head. The connection between the cutter head 4 and the collet 2 is sealed to prevent metal debris from entering the collet 2 and causing it to jam during the use of the cutter head 4. When the cutter head 4 is not in use, the anti-impact component 11 can be installed to protect the cutter head 4. The protective sleeve 113 is placed on the outside of the cutter head 4 and inserted into the inside of the fixing sleeve 111, so that the retaining ring 112 engages with the retaining groove 114. At this time, the cutter head 4 pierces the isolation membrane 14 and inserts into the inside of the oil cylinder 13. The protective oil inside the oil cylinder 13 soaks into the sponge cylinder 12, thereby wetting and protecting the surface of the cutter head 4 and slowing down the oxidation rate of the cutter head 4. The design of the anti-impact component 11 can prevent the cutter head 4 from breaking due to impact from external objects.

[0029] Contents not described in detail in this specification are existing technologies known to those skilled in the art. Standard parts used in this invention can all be purchased commercially, and irregularly shaped parts can be custom-made according to the description and drawings. The specific connection methods for each part all employ conventional methods such as bolts, rivets, and welding, which are already mature technologies. The machinery, parts, and equipment all use conventional models from the prior art, and the circuit connections also employ conventional connection methods from the prior art, which will not be detailed here.

[0030] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A tungsten alloy impact resistant milling tool comprising a shank (1), characterized in that: The cutter holder (1) is internally provided with a chuck (2), the top of the cutter holder (1) is threadedly connected with a nut (3), the nut (3) and the chuck (2) are internally provided with a milling cutter head (4), the outer side of the cutter holder (1) is provided with a plurality of thread grooves (5) arranged in a polar axis, the thread grooves (5) are threadedly connected with bolts (6), the top end of the nut (3) is provided with a protective cover (7), the bottom end of the protective cover (7) is fixedly connected with a plurality of mounting hole plates (8) arranged in a polar axis, the top end of the protective cover (7) is provided with a through groove (9) vertically penetrating the protective cover (7), the through groove (9) is internally embeddedly connected with symmetrically arranged sealing rings (10), the sealing rings (10) are provided above an anti-impact assembly (11) mounted on the top end of the protective cover (7).

2. The impact-resistant tungsten alloy mill of claim 1, wherein: The outer bottom of the milling cutter head (4) is tightly attached to the inner side of the chuck (2), a plurality of mounting hole plates (8) are horizontally aligned with a plurality of thread grooves (5) respectively, the bolts (6) are inserted into the inner side of the mounting hole plates (8), and the outer side of the milling cutter head (4) is tightly attached to the inner side of the sealing rings (10).

3. The impact-resistant tungsten alloy mill of claim 2, wherein: The anti-impact assembly (11) comprises a fixed cylinder (111) fixedly connected to the top center of the protective cover (7), the fixed cylinder (111) is fixedly connected with a clamping ring (112) on the inner wall, the clamping ring (112) is internally provided with a protective cylinder (113), and the protective cylinder (113) is externally provided with a clamping groove (114).

4. The impact-resistant tungsten alloy mill of claim 3, wherein: The clamping ring (112) is located inside the clamping groove (114) and is clampedly connected with the clamping groove (114), the inner side of the fixed cylinder (111) is tightly attached to the outer side of the protective cylinder (113), and the milling cutter head (4) is arranged inside the protective cylinder (113).

5. The impact-resistant tungsten alloy mill of claim 4, wherein: The inner wall of the protective cylinder (113) is fixedly connected with a sponge cylinder (12), the inner top end of the protective cylinder (113) is fixedly connected with an oil cylinder (13), and the bottom end of the oil cylinder (13) is fixedly connected with an isolation film (14).

6. The impact-resistant tungsten alloy mill of claim 5, wherein: The inner side of the sponge cylinder (12) is tightly attached to the outer top of the milling cutter head (4), and the milling cutter head (4) is inserted into the inner side of the oil cylinder (13).

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