TCT staggered-tooth rough milling cutter

Abstract

The utility model relates to a TCT staggered tooth cutting rough milling cutter in the field of milling cutters, which comprises a cutter shaft and a cutter head, a cutting part and a cutter handle part are arranged on the cutter shaft, a chip guiding groove and a positioning mounting groove are arranged on the cutting part, the chip guiding groove extends along the axial direction of the cutter shaft, the cutter head is arranged in the positioning mounting groove, a chip discharging groove is arranged on the surface of the cutter handle part, and the chip discharging groove is in a spiral shape. A cooling liquid channel penetrating through the cutter handle part and extending to the cutting part is formed in the cutter shaft, a liquid seepage opening is formed in the positioning installation groove and communicated with the cooling liquid channel, and a liquid outlet groove is formed between the inner wall of the cutter head and the inner wall of the positioning installation groove. A shaft sleeve is arranged on the outer side of the cutter handle part, a liquid inlet hole is formed in the surface of the cutter handle part, a liquid storage groove is formed in the inner wall of the shaft sleeve, and a liquid supply opening is communicated with the liquid storage groove, so that it is ensured that cooling liquid can flow through the surface of the cutter head to absorb heat, the heat dissipation efficiency is improved, and use of the cooling liquid is reduced.

Description

Technical Field

[0001] This utility model relates to the field of milling cutters, and in particular to a TCT staggered tooth roughing milling cutter. Background Technology

[0002] Milling is a common machining method in the machinery industry. It involves using a rotating cutting tool to cut a workpiece, removing excess material to achieve the desired shape, size, and surface quality. The machine tool used for this machining method is called a milling machine, and the cutting tool used to perform the cutting task is called a milling cutter. In the machinery manufacturing industry, milling is a very important machining method that can be used to process workpieces of various shapes and sizes, including but not limited to planes, grooves, gear teeth, threads, splined shafts, and various curved surfaces. By adjusting various parameters of the milling machine and milling cutter, such as spindle speed, feed rate, and depth of cut, machining accuracy and efficiency can be controlled.

[0003] A milling cutter generally consists of three parts: the shank, the cutter body, and the cutter head. The shank is the part used to hold the milling cutter on the machine tool and drive its rotation; the cutter body is the middle part connecting the shank and the cutter head, which plays the role of supporting and transmitting cutting forces; the cutter head is the part equipped with the cutting edge and directly participates in the cutting process.

[0004] During the cutting process, because the milling cutter rotates at high speed, when the coolant is sprayed onto the milling cutter, it will be thrown off the surface of the milling cutter under the action of centrifugal force. This results in the milling cutter and the workpiece not being cooled effectively, and at the same time, it greatly increases the amount of coolant used, thus increasing the processing cost. Utility Model Content

[0005] In order to overcome the shortcomings of existing technical solutions, this utility model provides a TCT staggered tooth roughing cutter, which can effectively solve the technical problem that the coolant cannot be effectively cooled because it is thrown off the surface of the cutter under the action of centrifugal force.

[0006] The technical solution adopted by this utility model to solve its technical problem is:

[0007] A TCT staggered-tooth rough milling cutter includes a cutter shaft and a cutter head. The cutter shaft has a cutting section and a shank section, with their axes coincident. The cutter head is detachably mounted on the cutting section. The cutting section has a chip guide groove and a positioning mounting groove, with the positioning mounting groove located on the side wall of the chip guide groove, which extends axially along the cutter shaft. The cutter head is positioned within the positioning mounting groove. The surface of the shank section has a helical chip removal groove, with one end of the chip removal groove near the cutting section engaging with the chip guide groove. A through-hole cutter head is provided inside the cutter shaft. The coolant channel extends to the cutting part. A seepage port is provided on the positioning and mounting groove, which is connected to the coolant channel. A boss is provided at the end of the cutter head near the positioning and mounting groove. A liquid outlet groove is formed between the inner wall of the cutter head and the inner wall of the positioning and mounting groove. The opening of the liquid outlet groove extends to the surface of the cutting part. A bushing is provided on the outer side of the tool holder. A liquid inlet hole is provided on the surface of the tool holder. A liquid storage tank is provided on the inner wall of the bushing. A liquid supply port is connected to the liquid storage tank and extends to the surface of the bushing. A sealing ring is provided between the bushing and the tool holder.

[0008] Furthermore, the edge of the cutter head is provided with a raised cutting edge, which protrudes from the surface of the cutting part, and the cutter head is heat-treated.

[0009] Furthermore, the surface of the cutter shaft is covered with a PVD coating.

[0010] Furthermore, the positioning mounting groove is provided with a threaded through hole, and the surface of the cutter head is provided with a positioning hole. The cutter head is connected to the positioning mounting groove by a bolt. The bolt passes through the positioning hole and is tightened into the threaded through hole to fix the position of the cutter head.

[0011] Furthermore, the diameter of the cutting part is smaller than the diameter of the tool holder part, and a tapered section is provided between the cutting part and the tool holder part. The tapered section is frustoconical in shape, and the diameters at both ends of the tapered section are equal to the diameters of the cutting part and the tool holder part, respectively.

[0012] Furthermore, the cutting part, the diameter reduction part, and the tool holder part are integrally formed structures.

[0013] Furthermore, a plug is provided at the end of the tool holder away from the cutting part, and the plug is threadedly connected to the coolant channel.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: A coolant channel and a bushing are provided. The bushing is rotatably connected to the cutter shaft. The milling machine's supply pipe is connected to the supply port. Coolant enters the storage tank and flows into the coolant channel through the inlet hole. The cutter shank is connected to the milling machine's rotary chuck. When the cutter shank rotates, the bushing does not rotate with it. The coolant flows into the seepage port in the coolant channel. Under the action of centrifugal force, the coolant in the seepage port is thrown into the outlet tank and finally thrown out onto the workpiece surface. When the coolant flows in the coolant channel, it can carry away the heat of the cutter shaft. When the coolant flows in the outlet tank, it can carry away the heat of the cutter head, ensuring that the coolant can flow over the surface of the cutter head to absorb heat, improving heat dissipation efficiency and reducing coolant usage. Attached Figure Description

[0015] Figure 1 This is a three-dimensional schematic diagram of the present invention;

[0016] Figure 2 This is a three-dimensional schematic diagram of the concealed blade of this utility model;

[0017] Figure 3 This is a cross-sectional view of the present invention;

[0018] Figure 4 This is a schematic diagram of the liquid outlet tank and the seepage port of this utility model;

[0019] The labels in the diagram are: 1-tool head, 2-tool shank, 3-cutting part, 4-threaded through hole, 5-positioning hole, 6-reduction section, 7-positioning mounting groove, 8-chip guide groove, 9-chip removal groove, 10-coolant channel, 11-drain outlet, 12-exit groove, 13-bore, 14-inlet hole, 15-sleeve, 16-reservoir, 17-supply port, 18-plug. Detailed Implementation

[0020] 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.

[0021] The following is combined Figures 1-4 A detailed description of this utility model is provided below:

[0022] A TCT staggered-tooth rough milling cutter includes a cutter shaft and a cutter head 1. The cutter shaft is provided with a cutting part 3 and a cutter shank part 2, and the axes of the cutting part 3 and the cutter shank part 2 coincide. The cutter head 1 is detachably mounted on the cutting part 3. A threaded through hole 4 is provided on the positioning mounting groove 7. A positioning hole 5 is provided on the surface of the cutter head 1. The cutter head 1 is connected to the positioning mounting groove 7 by bolts. The bolts pass through the positioning hole 5 and are tightened into the threaded through hole 4 to fix the position of the cutter head 1. When the cutter head 1 is worn, it can be disassembled and replaced. The diameter of the cutting part 3 is smaller than the diameter of the cutter shank part 2. A tapered section 6 is provided between the cutting part 3 and the cutter shank part 2. The tapered section 6 is frustoconical in shape, and the diameters at both ends of the tapered section 6 are equal to the diameters of the cutting part 3 and the cutter shank part 2, respectively. The cutting part 3, the tapered section 6, and the cutter shank part 2 are integrally formed structures.

[0023] The cutting part 3 is provided with a chip guide groove 8 and a positioning mounting groove 7. The positioning mounting groove 7 is located on the side wall of the chip guide groove 8, which extends along the axial direction of the tool shaft. The tool head 1 is disposed in the positioning mounting groove 7. The surface of the tool holder 2 is provided with a chip removal groove 9, which is spiral in shape. The end of the chip removal groove 9 near the cutting part 3 is connected to the chip guide groove 8. A coolant channel 10 is provided inside the tool shaft, penetrating the tool holder 2 and extending to the cutting part 3. A seepage port 11 is provided on the positioning mounting groove 7, which is connected to the coolant channel 10. The end of the tool head 1 near the positioning mounting groove 7 is provided with a coolant channel 10. A boss 13 is provided. A liquid outlet groove 12 is formed between the inner wall of the cutter head 1 and the inner wall of the positioning and mounting groove 7. The opening of the liquid outlet groove 12 extends to the surface of the cutting part 3. A bushing 15 is provided on the outer side of the tool holder 2. A liquid inlet hole 14 is provided on the surface of the tool holder 2. A liquid storage groove 16 is provided on the inner wall of the bushing 15. A liquid supply port 17 is connected to the liquid storage groove 16. The liquid supply port 17 extends to the surface of the bushing 15. A sealing ring is provided between the bushing 15 and the tool holder 2. A plug 18 is provided at the end of the tool holder 2 away from the cutting part 3. The plug 18 is threadedly connected to the coolant channel 10.

[0024] The edge of the cutter head 1 is provided with a raised cutting edge, which protrudes from the surface of the cutting part 3. The cutter head 1 is subjected to quenching treatment to improve its hardness. The surface of the cutter shaft is covered with a PVD coating to improve its wear resistance, anti-sticking properties, and extend its service life.

[0025] This embodiment of a TCT staggered-tooth rough milling cutter includes a coolant channel 10 and a bushing 15. The bushing 15 is rotatably connected to the cutter spindle. The milling machine's supply pipe is connected to the supply port 17. Coolant enters the storage tank 16 and flows from the storage tank 16 into the coolant channel 10 through the inlet hole 14. The cutter shank 2 is connected to the milling machine's rotary chuck. When the cutter shank 2 rotates, the bushing 15 does not rotate with it. The coolant flows into the seepage port 11 in the coolant channel 10. Under the action of centrifugal force, the coolant in the seepage port 11 is thrown into the outlet tank 12 and finally thrown out onto the workpiece surface in the outlet tank 12. When the coolant flows in the coolant channel 10, it can carry away the heat of the cutter spindle. When the coolant flows in the outlet tank 12, it can carry away the heat of the cutter head 1, ensuring that the coolant can flow over the surface of the cutter head 1 to absorb heat, improving heat dissipation efficiency and reducing coolant usage.

[0026] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A TCT staggered-tooth rough milling cutter, comprising a cutter shaft and a cutter head, wherein the cutter shaft is provided with a cutting section and a tool holder section, the axes of the cutting section and the tool holder section coincide, and the cutter head is detachably mounted on the cutting section, characterized in that: The cutting part is provided with a chip guide groove and a positioning mounting groove. The positioning mounting groove is located on the side wall of the chip guide groove, which extends along the axial direction of the tool shaft. The tool head is set in the positioning mounting groove. The surface of the tool holder is provided with a chip removal groove, which is spiral in shape. The end of the chip removal groove near the cutting part is connected to the chip guide groove. The tool shaft is provided with a coolant channel that passes through the tool holder and extends to the cutting part. The positioning mounting groove is provided with a seepage port, which is connected to the coolant channel. The end of the tool head near the positioning mounting groove is provided with a boss. A liquid outlet groove is formed between the inner wall of the tool head and the inner wall of the positioning mounting groove. The opening of the liquid outlet groove extends to the surface of the cutting part. A bushing is provided on the outer side of the tool holder. The surface of the tool holder is provided with a liquid inlet hole. The inner wall of the bushing is provided with a liquid storage tank, which is connected to a liquid supply port. The liquid supply port extends to the surface of the bushing. A sealing ring is provided between the bushing and the tool holder.

2. The TCT staggered-tooth rough milling cutter according to claim 1, characterized in that: The cutting head has a raised cutting edge that protrudes from the surface of the cutting part, and the cutting head has undergone heat treatment.

3. The TCT staggered-tooth rough milling cutter according to claim 1, characterized in that: The surface of the cutter shaft is covered with a PVD coating.

4. A TCT staggered-tooth rough milling cutter according to any one of claims 1-3, characterized in that: The positioning mounting groove is provided with a threaded through hole, and the surface of the cutter head is provided with a positioning hole. The cutter head is connected to the positioning mounting groove by bolts. The bolts pass through the positioning hole and the threaded through hole and are tightened to fix the position of the cutter head.

5. A TCT staggered-tooth rough milling cutter according to any one of claims 1-3, characterized in that: The diameter of the cutting part is smaller than the diameter of the tool holder part. A tapered section is provided between the cutting part and the tool holder part. The tapered section is truncated cone-shaped, and the diameters at both ends of the tapered section are equal to the diameters of the cutting part and the tool holder part, respectively.

6. A TCT staggered-tooth rough milling cutter according to claim 5, characterized in that: The cutting section, the diameter reduction section, and the tool holder section are integrally formed.

7. A TCT staggered-tooth rough milling cutter according to any one of claims 1-3, characterized in that: A plug is provided at the end of the tool holder away from the cutting part, and the plug is threadedly connected to the coolant channel.

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