Left-rotation tungsten steel coating forming milling cutter

Abstract

The utility model discloses a left-hand tungsten steel coating forming milling cutter, which relates to the technical field of milling cutters, and comprises a cutter handle, a cutter head fixedly connected with one end of the cutter handle, a connecting cylinder arranged on one side of the cutter handle far away from the cutter head, a connecting groove arranged on one side of the connecting cylinder and embedded in the inner side of the connecting cylinder, a threaded rod is arranged on the side, opposite to the connecting groove, of the connecting cylinder, a threaded hole is formed in one side in the cutter handle, and the threaded rod is located in the threaded hole. And the connecting cylinder and the connecting groove are arranged, the connecting cylinder is detachably arranged, the shape of the connecting groove can be selected to be matched with that of an external driving mechanism, the device can be conveniently installed on other driving mechanisms of different specifications, and practicability is high.

Description

Technical Field

[0001] This utility model relates to the field of milling tool technology, and in particular to a left-handed tungsten carbide coated forming milling cutter. Background Technology

[0002] Elastic collets are cylindrical clamps used on milling machines to hold drill bits or milling cutters. Machining elastic collets requires slotting the front and rear end faces. Currently, there is no suitable automated equipment for machining them, and the end face slotting is usually done manually on a grinding wheel.

[0003] A search revealed that Chinese Patent Publication No. CN213257329U discloses a left-handed tungsten carbide coated forming milling cutter. The cutter comprises a first cutting section located at the front end of a second cutting section, with a stepped arrangement between the two sections. The diameter α of the first cutting section is smaller than the diameter γ of the second cutting section. The first cutting section includes four right-handed front cutting edges of uniform size and four corresponding front peripheral cutting edges. Each of the four front peripheral cutting edges extends helically to the left around its axis, and a first chip removal groove is formed between adjacent front peripheral cutting edges. The second cutting section includes four left-handed rear peripheral cutting edges and two right-handed rear cutting edges. The two rear cutting edges are located on opposite sides of the second cutting section and connect with their respective rear peripheral cutting edges. A second chip removal groove is formed between adjacent rear peripheral cutting edges, and each second chip removal groove either connects to or is not connected to a corresponding first chip removal groove. This method effectively controls burrs on sharp edges of the product, resulting in high processing efficiency and good surface quality.

[0004] However, in the existing technology, the tool holder needs to be connected to an external rotary drive device, and the existing milling cutter can only be connected to a specific external drive mechanism, and cannot be easily installed on other drive mechanisms of different specifications, resulting in poor practicality.

[0005] To address these issues, we propose a left-handed tungsten carbide coated forming milling cutter. Utility Model Content

[0006] The purpose of this invention is to address the shortcomings of existing technologies by proposing a left-handed tungsten carbide coated forming milling cutter.

[0007] To achieve the above objectives, the present invention adopts the following technical solution:

[0008] A left-handed tungsten carbide coated forming end mill includes a shank, one end of which is fixedly connected to a cutting head, and further includes:

[0009] A connecting cylinder is provided on the side of the handle away from the cutter head. A connecting groove is provided on one side of the connecting cylinder, and the connecting groove is embedded inside the connecting cylinder. A threaded rod is provided on the side of the connecting cylinder opposite to the connecting groove. A threaded hole is provided on one side inside the cutter handle, and the threaded rod is located in the threaded hole.

[0010] Preferably, the cross-sectional shape of the connecting groove is hexagonal, rectangular, or circular.

[0011] Preferably, the connecting cylinder has a circular cross-section, and the connecting cylinder and one side of the knife handle are tightly fitted together.

[0012] Preferably, the handle has a first plane, and the end of the handle opposite to the first plane has a second plane.

[0013] Preferably, the first plane and the second plane are symmetrically arranged, and the first plane and the second plane are perpendicular to the connecting cylinder in the horizontal plane.

[0014] Preferably, the cutting head is provided with a heating tube, and the heating tube is fixedly connected to the cutting head.

[0015] Preferably, the handle is equipped with a storage battery, and the storage battery is electrically connected to the heating tube.

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

[0017] By setting a connecting cylinder and a connecting groove, the connecting cylinder is detachable. The shape of the connecting groove can be selected to match the external drive mechanism, making it easy to install on other drive mechanisms of different specifications, which is highly practical. Attached Figure Description

[0018] Figure 1 This is a structural diagram of a left-handed tungsten carbide coated forming milling cutter proposed in this utility model;

[0019] Figure 2 for Figure 1 Schematic diagram of the internal structure of the cutting head;

[0020] Figure 3 for Figure 1 Schematic diagram of the exploded structure of the middle connecting cylinder;

[0021] Figure 4 Figure 1 Schematic diagram of the internal structure of the tool holder.

[0022] In the diagram: 1. Tool holder; 2. Connecting cylinder; 3. Tool head; 4. First plane; 5. Second plane; 6. Heating tube; 7. Connecting groove; 8. Threaded rod; 9. Threaded hole; 10. Battery. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0024] refer to Figure 1 A left-handed tungsten carbide coated forming milling cutter includes a shank 1. The shank 1 needs to be connected to an external drive mechanism to drive the shank 1 and the cutter head 3 to rotate. The cutter head 3 is fixedly connected to one end of the shank 1. The cutter head 3 is detachable. After long-term use, the cutter head 3 will wear out and can be disassembled for maintenance.

[0025] refer to Figure 1 and Figure 3 The connecting cylinder 2 is located on the side of the handle 1 away from the cutter head 3. A connecting groove 7 is provided on one side of the connecting cylinder 2. The connecting groove 7 has a hexagonal, rectangular, or circular cross-sectional shape and is embedded inside the connecting cylinder 2. Three embodiments are provided regarding the shape of the connecting groove 7:

[0026] Example 1

[0027] When the connecting part of the external drive mechanism is hexagonal, the connecting groove 7 is also hexagonal, which can fix the connecting cylinder 2 on the tool holder 1. Then, the connecting cylinder 2, the tool holder 1, and the cutter head 3 are connected to the external drive mechanism through the connecting groove 7. The external drive mechanism can then drive the connecting cylinder 2, the tool holder 1, and the cutter head 3 to rotate at high speed for cutting.

[0028] Example 2

[0029] When the connecting part of the external drive mechanism is rectangular, the connecting groove 7 is also rectangular. The connecting cylinder 2 can be fixed on the tool holder 1, and the connecting cylinder 2, the tool holder 1, and the tool head 3 can be connected to the external drive mechanism through the connecting groove 7. Then, the external drive mechanism can drive the connecting cylinder 2, the tool holder 1, and the tool head 3 to rotate at high speed for cutting.

[0030] Example 3

[0031] When the connecting part of the external drive mechanism is circular, the connecting groove 7 is also circular and has a thread inside. The connecting cylinder 2 can be fixed on the tool holder 1. The connecting cylinder 2, the tool holder 1, and the tool head 3 are then connected to the external drive mechanism through the thread of the connecting groove 7. The external drive mechanism can then drive the connecting cylinder 2, the tool holder 1, and the tool head 3 to rotate at high speed for cutting.

[0032] refer to Figure 3A threaded rod 8 is provided on the side of the connecting cylinder 2 opposite to the connecting groove 7, and a threaded hole 9 is provided on the inside side of the tool holder 1. The threaded rod 8 is located in the threaded hole 9. The connecting cylinder 2 and the tool holder 1 can be connected and fixed through the threaded rod 8 and the threaded hole 9.

[0033] refer to Figure 1 and Figure 3 The cross-section of the connecting cylinder 2 is circular, and the connecting cylinder 2 and the knife handle 1 are tightly fitted on one side. In an optional embodiment, the contact surfaces of the connecting cylinder 2 and the knife handle 1 are completely fitted. Both the contact surfaces of the connecting cylinder 2 and the knife handle 1 are rough surfaces, which can increase the friction and improve the stability after the connecting cylinder 2 and the knife handle 1 are connected.

[0034] refer to Figure 1 The handle 1 has a first plane 4, and the end of the handle 1 opposite to the first plane 4 has a second plane 5. The first plane 4 and the second plane 5 are symmetrically arranged. The first plane 4 and the second plane 5 are perpendicular to the connecting cylinder 2 in the horizontal plane. By setting the first plane 4 and the second plane 5 on the handle 1, the stability of the cutter head 3 during cutting can be improved. An optional embodiment is that counterweights can be welded on the first plane 4 and the second plane 5 to further improve the stability of the cutter head 3 during cutting.

[0035] refer to Figure 2 and Figure 4 The cutting head 3 is equipped with a heating tube 6, which is fixedly connected to the cutting head 3. The cutting head 3 can be heated by the heating tube 6 during or before cutting. During cutting, some small burrs on the cutting surface can be sintered at the same time, improving the smoothness of the cutting surface. The handle 1 is equipped with a storage battery 10, which is electrically connected to the heating tube 6. The storage battery 10 drives the heating tube 6. The heating tube 6 is an electric heating tube.

Claims

1. A left-hand tungsten coated profile milling cutter comprising a shank, one end of which is fixedly connected with a cutter head, characterized in that, Also include: The connecting barrel is provided on the side of the shank away from the tool bit, and a connecting groove is provided on one side of the connecting barrel and embedded in the inner side of the connecting barrel. A threaded rod is provided on the side of the connecting barrel opposite to the connecting groove. A threaded hole is provided on one side of the inner part of the shank, and the threaded rod is located in the threaded hole.

2. A left-hand tungsten steel coated form mill according to claim 1, wherein, The cross-sectional shape of the connecting groove is hexagonal, rectangular or circular.

3. A left-hand tungsten steel coated form mill according to claim 1, wherein, The cross-section of the connecting barrel is circular, and the connecting barrel and the side of the shank are closely fitted.

4. The left-hand tungsten steel coated form mill according to claim 1, wherein, A first plane is provided on the shank, and a second plane is provided on the end of the shank opposite to the first plane.

5. A left-hand tungsten steel coated form mill according to claim 4, wherein, The first plane and the second plane are symmetrically arranged, and the first plane and the second plane are perpendicular to the connecting barrel in the horizontal plane.

6. A left-hand tungsten steel coated form mill according to claim 1, wherein, A heating pipe is provided in the tool bit, and the heating pipe is fixedly connected with the tool bit.

7. A left-hand tungsten steel coated form mill according to claim 1, wherein, A storage battery is provided in the inner part of the shank, and the storage battery and the heating pipe are electrically connected.

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