Efficient heat dissipation type corn milling cutter

Abstract

The utility model relates to the field of machining cutters, in particular to an efficient heat dissipation type corn milling cutter which comprises a cutter head and a cutter handle which are arranged in a split mode and detachably connected, a spiral groove is formed in the cutter head, the cutter handle comprises a first handle column and a second handle column which are coaxially arranged, and a plurality of cooling fins are arranged between the first handle column and the second handle column in the circumferential direction at intervals; a liquid feeding chamber detachably connected to the tool apron is arranged at the position, opposite to the cooling fins, outside the tool handle, the interior of the liquid feeding chamber is hollow, the top of the liquid feeding chamber is open, the first handle column and the second handle column rotationally penetrate through the liquid feeding chamber, a liquid feeding hole communicated with the liquid feeding chamber is formed in the tool bit, and a plurality of liquid outlet holes communicated with the liquid feeding hole are formed in the position, opposite to the spiral groove, of the tool bit. The heat dissipation device has the advantages that the heat dissipation effect is improved, and heat accumulation is avoided.

Description

High-efficiency heat dissipation corn end mill Technical Field

[0001] This application relates to the field of machining tools, and in particular to a high-efficiency heat-dissipating corn milling cutter. Background Technology

[0002] Corn milling cutters are a special type of milling tool with a dense spiral pattern on the surface and shallow chip flutes. They are typically used to process functional materials such as carbon fiber Kevlar and composite materials such as glass fiber.

[0003] The related technology discloses a corn milling cutter, including an integrally formed cutter head and a cutter shank. The cutter shank is detachably connected to a cutter holder in the prior art. The cutter head has a helical groove and multiple blades are densely distributed at positions adjacent to the helical groove.

[0004] Because the cutting inserts are densely arranged at the cutting head, even if coolant is directly sprayed onto the outer surface of the cutting head during milling, heat may still accumulate at the cutting head, which will affect machining accuracy and tool life, resulting in significant shortcomings. Summary of the Invention

[0005] To reduce the likelihood of heat buildup at the cutting head, this application provides a high-efficiency heat dissipation corn milling cutter.

[0006] The high-efficiency heat-dissipating corn end mill provided in this application adopts the following technical solution:

[0007] A high-efficiency heat-dissipating corn milling cutter includes a separate and detachably connected cutter head and a cutter shank. The cutter head has a spiral groove, and the cutter shank includes a first shank post and a second shank post arranged coaxially. Multiple heat dissipation fins are arranged circumferentially between the first shank post and the second shank post.

[0008] By adopting the above technical solution, during the milling process, the heat on the cutting head is transferred to the heat sink of the cutting head. The heat sink has a large contact area with the air, which helps to reduce the amount of heat accumulation on the cutting head.

[0009] Optionally, a liquid delivery chamber detachably connected to the blade holder is arranged on the outside of the blade holder relative to the heat sink. The liquid delivery chamber is hollow inside and open at the top. The first and second shank columns both rotate through the liquid delivery chamber. The blade head has a liquid delivery hole communicating with the liquid delivery chamber. The blade head has multiple liquid outlet holes communicating with the liquid delivery hole at the position relative to the spiral groove.

[0010] By adopting the above technical solution, during the milling process, coolant is poured into the liquid supply chamber, enters the liquid supply hole, and then sprays out from each liquid outlet hole. During the process of flowing through the cutter head, the coolant can absorb the heat on the cutter head from the inside, thereby reducing the possibility of heat accumulation on the cutter head.

[0011] Optionally, the second shank has an insertion hole for engaging with the cutting head, the cutting head has an installation hole, and the second shank is threaded with an installation bolt for engaging with the installation hole.

[0012] By adopting the above technical solution, during installation, the worker inserts the end of the cutter head into the designated position in the insertion hole, and then tightens the mounting bolt on the second shank post. The mounting bolt is then inserted into the mounting insertion hole, thereby achieving a detachable connection between the cutter head and the shank.

[0013] Optionally, the second shank is provided with a stop for the end of the cutter head to abut against, and when the end of the cutter head abuts against the stop, the mounting bolt is exactly coaxial with the mounting hole.

[0014] By adopting the above technical solution, the installation position of the cutting head on the platform is defined, which facilitates the smooth insertion of the end of the mounting bolt into the mounting hole.

[0015] Optionally, the heat sink is inclined in the direction of rotation away from the axis of the tool holder.

[0016] By adopting the above technical solution, when the tool holder rotates at high speed, the inclined heat sink applies a certain thrust to the coolant, thereby causing the coolant to converge towards the axis of the tool holder, so that the coolant can enter the liquid delivery hole.

[0017] Optionally, the liquid delivery hole extends to the other end of the cutter head opposite the heat sink and is threadedly connected to a cap.

[0018] By adopting the above technical solution, workers can disassemble the end cap by twisting it to facilitate the cleaning of small metal impurities that have entered the liquid delivery hole.

[0019] Optionally, a limiting shield is arranged on the outer circumferential wall of both the first and second handles. The diameter of the limiting shield gradually increases along the direction close to the liquid delivery chamber and a gap is left between the limiting shield and the liquid delivery chamber. The bottom of the limiting shield is open.

[0020] By adopting the above technical solution, when wear occurs at the rotating joint between the liquid delivery chamber and the tool holder, the coolant flows out from the gap at the wear point and is thrown onto the spray limiter under the action of the centrifugal force of the tool holder rotation. Then it flows out from the opening at the bottom of the spray limiter. In this way, the spray limiter can reduce the possibility of the coolant being thrown in four directions due to centrifugal force.

[0021] In summary, this application includes at least one of the following beneficial technical effects:

[0022] 1. During milling, the heat on the cutting head is transferred to the heat sink on the tool holder. The heat sink has a large contact area with the air, which helps to reduce the amount of heat accumulated on the cutting head.

[0023] 2. During the milling process, coolant is poured into the fluid supply chamber. The coolant enters the fluid supply hole and then sprays out from each outlet hole. As it flows through the cutter head, the coolant can absorb the heat on the cutter head from the inside, thereby reducing the possibility of heat accumulation on the cutter head.

[0024] 3. When wear occurs at the rotating joint between the liquid delivery chamber and the tool holder, the coolant flows out from the gap at the wear point and is thrown onto the spray limiter under the action of centrifugal force of the tool holder rotation. Then it flows out from the opening at the bottom of the spray limiter. In this way, the spray limiter can reduce the possibility of coolant being thrown in four directions due to centrifugal force. Attached Figure Description

[0025] Figure 1 is a structural schematic diagram of an embodiment of this application.

[0026] Figure 2 is a cross-sectional view of an embodiment of this application.

[0027] Explanation of reference numerals in the attached drawings: 1. Cutting head; 101. Spiral groove; 102. Liquid delivery hole; 103. Liquid outlet hole; 104. Mounting insertion hole; 2. Cutting handle; 21. First handle post; 22. Second handle post; 221. Insertion hole; 23. Heat sink; 3. Liquid delivery chamber; 4. Mounting bolt; 5. Support platform; 6. Spray limiter; 7. End cap. Detailed Implementation

[0028] The present application will be further described in detail below with reference to Figures 1-2.

[0029] This application discloses a high-efficiency heat-dissipating corn milling cutter.

[0030] Referring to Figures 1 and 2, the high-efficiency heat-dissipating corn milling cutter includes a separate and detachably connected cutter head 1 and a cutter shank 2. The cutter shank 2 includes a coaxial first shank post 21 and a second shank post 22. The first shank post 21 is used for assembly with a tool holder in the prior art, and the second shank post 22 is used for assembly with the cutter head 1.

[0031] Multiple heat sinks 23 are integrally formed between the first handle post 21 and the second handle post 22. The multiple heat sinks 23 are circumferentially spaced and are inclined in the direction away from the axis of the handle 2.

[0032] Referring to Figure 2, the second shank 22 has an insertion hole 221 for engaging with the cutter head 1, the cutter head 1 has an installation insertion hole 104, and the second shank 22 is threaded with an installation bolt 4 for engaging with the installation insertion hole 104.

[0033] Referring to Figure 2, a stop 5 is arranged inside the second shank 22 for the end of the cutter head 1 to abut against. When the end of the cutter head 1 abuts against the stop 5, the mounting bolt 4 is exactly coaxial with the mounting hole 104.

[0034] Referring to Figure 2, a liquid delivery chamber 3 is arranged on the outside of the tool holder 2 relative to the heat sink 23 and is bolted to the tool holder. The liquid delivery chamber 3 is hollow inside and open at the top, and the open top can be connected to the hose of the coolant circulation system in the prior art.

[0035] Referring to Figure 2, a spiral groove 101 is provided on the outer side wall of the cutter head 1, and a liquid delivery hole 102 is provided inside the cutter head 1. The liquid delivery hole 102 is connected to the liquid delivery chamber 3. A plurality of liquid outlet holes 103 connected to the liquid delivery hole 102 are provided on the cutter head 1 at the position opposite to the spiral groove 101.

[0036] Referring to Figure 2, coolant is poured into the delivery chamber 3, then flows into the delivery hole 102, and finally sprays out from each outlet hole 103. During this process, the coolant absorbs heat from inside the cutter head 1, reducing the possibility of heat accumulation on the cutter head 1, improving milling quality, and extending tool life.

[0037] Referring to Figure 2, the liquid delivery hole 102 extends to the other end of the cutter head 1 opposite the heat sink 23, and is threadedly connected to a sealing head 7. Workers can manually disassemble the sealing head 7 with the help of tools, so as to clean the small metal impurities in the liquid delivery hole 102.

[0038] Referring to Figure 2, a limiting shield 6 is bolted to the outer circumferential wall of the first handle 21 and the second handle 22. The diameter of the limiting shield 6 gradually increases along the direction close to the liquid delivery chamber 3 and a gap is left between it and the liquid delivery chamber 3. The bottom of the limiting shield 6 is open.

[0039] Referring to Figure 2, when wear occurs at the rotating joint between the liquid delivery chamber 3 and the tool holder 2, the coolant flows out from the gap at the wear point and is thrown onto the spray limiter 6 under the action of the centrifugal force of the rotating tool holder 2. Then it flows out from the opening at the bottom of the spray limiter 6. In this way, the spray limiter 6 can reduce the possibility of the coolant being thrown in four directions due to centrifugal force.

[0040] The implementation principle of a high-efficiency heat-dissipating corn milling cutter according to an embodiment of this application is as follows: coolant is poured into the delivery chamber 3, then flows into the delivery hole 102, and then sprays out from each outlet hole 103. During this process, the coolant absorbs heat from inside the cutter head 1, reducing the possibility of heat accumulation on the cutter head 1, improving milling quality, and extending the tool's service life.

[0041] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A high-efficiency heat-dissipating corn milling cutter, comprising a separate and detachably connected cutter head (1) and cutter shank (2), wherein the cutter head (1) has a helical groove (101), characterized in that: The handle (2) includes a first handle post (21) and a second handle post (22) arranged coaxially, and a plurality of heat sinks (23) are arranged circumferentially between the first handle post (21) and the second handle post (22).

2. The high-efficiency heat-dissipation corn cutter according to claim 1, characterized in that: The handle (2) is provided with a liquid delivery chamber (3) that is detachably connected to the blade holder at a position opposite to the heat sink (23). The liquid delivery chamber (3) is hollow inside and open at the top. The first handle post (21) and the second handle post (22) both rotate through the liquid delivery chamber (3). The blade head (1) has a liquid delivery hole (102) that communicates with the liquid delivery chamber (3). The blade head (1) has a plurality of liquid outlet holes (103) that communicate with the liquid delivery hole (102) at a position opposite to the spiral groove (101).

3. The high-efficiency heat-dissipation corn cutter according to claim 2, characterized in that: The second shank (22) has an insertion hole (221) for engaging with the cutter head (1), and the cutter head (1) has an installation insertion hole (104). The second shank (22) is threaded with an installation bolt (4) for engaging with the installation insertion hole (104).

4. The high-efficiency heat-dissipating corn milling cutter according to claim 3, characterized in that: The second shank (22) is provided with a stop (5) for the end of the cutter head (1) to abut. When the end of the cutter head (1) abuts the stop (5), the mounting bolt (4) is exactly coaxial with the mounting hole (104).

5. The high-efficiency heat-dissipating corn cutter according to claim 1, characterized in that: The heat sink (23) is inclined in the direction away from the axis of the handle (2) toward its rotational direction.

6. The high-efficiency heat-dissipating corn milling cutter according to claim 2, characterized in that: The liquid delivery hole (102) extends to the other end of the cutter head (1) opposite the heat sink (23) and is threadedly connected to a cap (7).

7. The high-efficiency heat-dissipating corn milling cutter according to claim 2, characterized in that: A limited-shot shield (6) is arranged on the outer circumferential wall of the first handle (21) and the second handle (22). The diameter of the limited-shot shield (6) gradually increases along the direction close to the liquid delivery chamber (3) and there is a gap between it and the liquid delivery chamber (3). The bottom of the limited-shot shield (6) is open.

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