High-speed cutting hard alloy milling cutter

Abstract

According to the technical scheme, the high-speed cutting hard alloy milling cutter comprises a main body and an alloy cutter head, a positioning hole is formed in the bottom of the main body, the alloy cutter head is installed at the position, located at the positioning hole, of the bottom of the main body, a taper shank is arranged on the portion, close to the top, of the outer surface of the main body, and a reducing sleeve is connected to the outer surface of the taper shank in a sleeved mode. A locking rod is installed in the reducing sleeve, spring grooves are formed in the positions, close to the four corners of the bottom, in the main body, extrusion columns are installed in the spring grooves, and springs are installed at the positions, located on the tops of the extrusion columns, in the spring grooves. According to the high-speed cutting hard alloy milling cutter, the problems that most existing alloy milling cutters are integrally arranged, the alloy milling cutters need to be integrally replaced after being damaged, the replacement cost is high, and the milling production cost of products is affected are solved, the replacement and maintenance cost of the alloy milling cutters is reduced, and therefore the milling cost of materials is reduced.

Description

Technical Field

[0001] This utility model relates to the field of milling technology, specifically a high-speed carbide milling cutter. Background Technology

[0002] Milling is a common machining method. The workpiece is fixed on the worktable by a milling machine, and the workpiece is cut by a rotating milling cutter. During the milling process, the operator needs to select appropriate tools, machining parameters and process routes according to the requirements of the workpiece to ensure machining quality and efficiency. The selection of milling cutter, the reasonable setting of cutting speed, feed rate, depth of cut and other parameters have an important impact on machining quality and tool life.

[0003] Many existing carbide end mills are integrally designed, requiring replacement of the entire end mill when damaged, which is costly and affects the production cost of milling. To address this, we propose a high-speed cutting carbide end mill. Utility Model Content

[0004] The purpose of this invention is to provide a high-speed carbide end mill that achieves the effect of a split-type carbide end mill, thereby solving the problem that many existing carbide end mills are set as a whole, which requires the whole end mill to be replaced after the end mill is damaged, resulting in high replacement costs and affecting the milling production cost of the product.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a high-speed cutting carbide end mill, comprising a body and a carbide end mill, wherein the bottom of the body is provided with a positioning hole, and the carbide end mill is installed at the positioning hole position on the bottom of the body. A tapered shank is provided on the outer surface of the body near the top, and a variable diameter sleeve is sleeved on the outer surface of the tapered shank. A locking rod is installed inside the variable diameter sleeve.

[0006] Preferably, the locking rod is sleeved inside the alloy cutter head, and the locking rod and the alloy cutter head are connected by a threaded connection.

[0007] Preferably, the bottom of the alloy cutter head is provided with a pin-removal groove near the outer surface, and an alloy blade is installed inside the pin-removal groove.

[0008] Preferably, the top of the alloy cutter head is provided with a positioning platform on the inner surface of the positioning hole, the positioning platform is fitted into the positioning hole, and both the positioning platform and the positioning hole are tapered.

[0009] Preferably, spring grooves are provided at the four corners near the bottom of the main body, and extrusion columns are installed inside the spring grooves, with springs installed at the top of the extrusion columns inside the spring grooves.

[0010] Preferably, the top of the variable diameter sleeve is provided with a locking groove at the position of the locking rod, and the locking rod is engaged inside the locking groove.

[0011] Preferably, there are three pin drain grooves, and the three pin drain grooves are evenly distributed at the bottom of the main body near the outer surface.

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

[0013] 1. This utility model achieves the effect of using a split-type alloy end mill by setting up a main body, an alloy cutter head, and a locking rod. This solves the problem that many existing alloy end mills are set up as a whole, which requires the whole end mill to be replaced after the alloy end mill is damaged. The replacement cost is high, which affects the milling production cost of the product. This reduces the replacement and maintenance cost of alloy end mills, thereby reducing the milling cost of materials.

[0014] 2. This utility model achieves the effect of convenient clamping of milling cutters by setting up a variable diameter sleeve, a tapered shank, and a locking rod. This solves the problem that existing milling cutter tapered shank angles are fixed, and a variable diameter sleeve needs to be added to the tapered shank during installation and machining. The fit between the variable diameter sleeve and the milling cutter is poor, which affects the stability of the milling cutter. This invention improves the clamping tightness of the milling cutter, thereby improving the stability of the milling cutter.

[0015] 3. This utility model achieves the effect of convenient disassembly and assembly of the alloy cutter head by setting the extrusion column, spring groove and spring, so as to solve the problem that the connection between the main body and the alloy cutter head is too tight during disassembly and assembly of the existing alloy cutter head, and the separation of the main body and the alloy cutter head is difficult, which affects the replacement and maintenance efficiency of the milling cutter. It reduces the difficulty of separating the main body and the alloy cutter head, thereby improving the replacement and maintenance efficiency of the milling cutter. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0017] Figure 2 This is a bottom view of the structure of this utility model;

[0018] Figure 3 This is a cross-sectional structural diagram of the present invention;

[0019] Figure 4 for Figure 3 The enlarged structural diagram of A is shown below.

[0020] Reference numerals: 1. Main body; 2. Alloy cutter head; 3. Variable diameter sleeve; 4. Pin groove; 5. Alloy blade; 6. Taper shank; 7. Locking rod; 8. Locking groove; 9. Positioning hole; 10. Positioning platform; 11. Extrusion column; 12. Spring groove; 13. Spring. Detailed Implementation

[0021] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0022] Example 1

[0023] like Figure 1-3 As shown, to achieve the above objectives, this utility model provides the following technical solution: A high-speed cutting carbide end mill includes a body 1 and a carbide cutter head 2. The bottom of the body 1 has a positioning hole 9, and the carbide cutter head 2 is installed at the positioning hole 9. A tapered shank 6 is provided near the top of the outer surface of the body 1. A reducing sleeve 3 is fitted onto the outer surface of the tapered shank 6. A locking rod 7 is installed inside the reducing sleeve 3. The locking rod 7 is fitted into the carbide cutter head 2, and the locking rod 7 is threadedly connected to the carbide cutter head 2. A locking groove is provided at the top of the reducing sleeve 3 where the locking rod 7 is located. 8. The locking rod 7 is fitted inside the locking groove 8. The bottom of the alloy cutter head 2 is provided with a pin-removing groove 4 near the outer surface. An alloy blade 5 is installed inside the pin-removing groove 4. The alloy blade 5 is used to mill the material. The top of the alloy cutter head 2 is provided with a positioning platform 10 located on the inner surface of the positioning hole 9. The positioning platform 10 is fitted inside the positioning hole 9. Both the positioning platform 10 and the positioning hole 9 are tapered. The alloy cutter head 2 is positioned by the positioning platform 10 and the positioning hole 9. There are three pin-removing grooves 4 in total, and the three pin-removing grooves 4 are evenly distributed at the bottom of the main body 1 near the outer surface.

[0024] The working principle of a high-speed carbide end mill based on Embodiment 1 is as follows: After preparing the present invention, the carbide cutter head 2 is inserted into the positioning hole 9, and a suitable variable diameter sleeve 3 is selected through the equipment clamping hole. The variable diameter sleeve 3 is then placed on the top of the taper shank 6. The locking rod 7 is then rotated to lock the carbide cutter head 2, thereby clamping the present invention onto the equipment. The equipment drives the present invention to rotate, which in turn drives the carbide cutting edge 5 to rotate, thus milling the material. If the carbide cutter head 2 or the carbide cutting edge 5 is damaged, the carbide cutter head 2 is replaced to ensure normal milling of the material. Thus, the working process of the equipment is completed.

[0025] Example 2

[0026] like Figure 3-4 As shown, the high-speed cutting carbide end mill proposed in this utility model, compared with the first embodiment, further includes: spring grooves 12 are provided at the four corners near the bottom of the main body 1, extrusion columns 11 are installed inside the spring grooves 12, and springs 13 are installed at the top of the extrusion columns 11 inside the spring grooves 12, so that the extrusion columns 11 are extruded by the springs 13.

[0027] In this embodiment, when it is necessary to replace the alloy cutter head 2, the locking rod 7 is rotated in the opposite direction to release the restriction on the alloy cutter head 2. Then, the spring 13 presses the extrusion column 11 to extrude the alloy cutter head 2, thereby separating the alloy cutter head 2 from the positioning hole 9, which facilitates the replacement of the cutter head alloy cutter head 2.

[0028] The above specific embodiments are merely several preferred embodiments of this utility model. Based on the technical solution of this utility model and the relevant teachings of the above embodiments, those skilled in the art can make various alternative improvements and combinations to the above specific embodiments.

Claims

1. A high speed cutting cemented carbide milling tool comprising a body (1) and an alloyed insert (2), characterized in that: The bottom of the main body (1) is provided with a positioning hole (9), the bottom of the main body (1) is provided with an alloy tool bit (2) at the position of the positioning hole (9), the outer surface of the main body (1) is provided with a taper shank (6) near the top, the taper shank (6) is sleeved with a variable diameter sleeve (3), and the variable diameter sleeve (3) is internally provided with a locking rod (7).

2. A high speed cutting cemented carbide milling tool according to claim 1, characterized in that: The locking rod (7) is sleeved in the alloy tool bit (2), and the locking rod (7) and the alloy tool bit (2) are connected through thread rotation.

3. A high speed cutting cemented carbide milling tool according to claim 1, characterized in that: The bottom of the alloy tool bit (2) is provided with a pin slot (4) near the outer surface, and the pin slot (4) is internally provided with an alloy blade (5).

4. A high speed cutting cemented carbide milling tool according to claim 1, characterized in that: The top of the alloy tool bit (2) is provided with a positioning table (10) at the inner surface of the positioning hole (9), the positioning table (10) is clamped in the positioning hole (9), and the positioning table (10) and the positioning hole (9) are both conical.

5. A high speed cutting cemented carbide milling tool according to claim 1, characterized in that: The main body (1) is provided with a spring groove (12) near the bottom of the four corners, the spring groove (12) is internally provided with an extrusion column (11), and the spring groove (12) is internally provided with a spring (13) at the top of the extrusion column (11).

6. A high speed cutting cemented carbide milling tool according to claim 1, characterized in that: The top of the variable diameter sleeve (3) is provided with a locking groove (8) at the position of the locking rod (7), and the locking rod (7) is clamped in the locking groove (8).

7. A high speed cutting cemented carbide milling tool according to claim 3, characterized in that: The pin slot (4) is provided with three, and the three pin slots (4) are evenly arranged at the position of the bottom of the main body (1) near the outer surface.

Images