Milling cutter head of milling machine

Abstract

The utility model provides a milling cutter head of a milling machine, which comprises a milling cutter head body, one end of the milling cutter head body is provided with a milling cutter shaft, the outer side of the milling cutter head body is provided with a plurality of milling cutter mounting strips which are distributed circumferentially, and each milling cutter mounting strip is provided with a plurality of threaded mounting holes which are arranged along the length direction of the milling cutter mounting strip from front to back in a penetrating manner. A heat dissipation groove is formed between every two milling cutter installation strips, a plurality of cooling fins are arranged in each heat dissipation groove, each cooling fin extends from the back face of the corresponding milling cutter installation strip to the front side of the adjacent milling cutter installation strip, and the cooling fins are broken at the positions corresponding to the threaded installation holes to form operation grooves. A wind gathering blade expanding outwards is arranged on the side, away from the milling cutter disc body, of each milling cutter installation strip, each wind gathering blade is in an arc shape bent in the direction of the starting end of the corresponding cooling fin, and one end of each wind gathering blade is large, and the other end of each wind gathering blade is small in the direction of the milling cutter shaft. The novel milling cutter disc adopts a brand-new milling cutter disc structure design, can effectively assist the milling cutter in heat dissipation and cooling, and reduces the heat dissipation cost during mold production and processing.

Description

Technical Field

[0001] The utility model belongs to the technical field of mechanical processing and relates to a milling cutter disc for a milling machine. Background Art

[0002] With the continuous advancement and development of the manufacturing industry, high-precision, high-efficiency machining equipment has become an indispensable part of industrial production. In particular, mold manufacturing places extremely high demands on workpiece dimensional accuracy, surface quality, and production efficiency. Milling machines, as one of the primary tools used in metal cutting, play a vital role in mold manufacturing. Using a variety of milling cutters, milling machines can perform precision machining of flat surfaces, curved surfaces, and complex shapes.

[0003] The milling cutter disc of a milling machine is a key component installed on the spindle of the milling machine and is used to fix and drive the milling cutter for cutting operations. During the mold production process, the milling cutter disc not only needs to have sufficient strength and rigidity to withstand the centrifugal force and cutting force generated by high-speed rotation, but also must ensure good balance and precise positioning performance to ensure processing accuracy. Traditional milling cutter discs mostly adopt an integral structure, that is, the tool holder and the disc body are molded in one piece. Although this design is simple and reliable, it is not flexible enough when facing the need to replace tools of different specifications. In recent years, with the application of modular design concepts, milling cutter discs with interchangeable tool holders have gradually become mainstream, greatly improving the adaptability and work efficiency of milling machines.

[0004] However, in actual operation, a large amount of heat is inevitably generated when the milling cutter cuts the material at high speed. If this heat cannot be dissipated in time, the temperature of the tool will rise sharply, which will affect its hardness and service life. In severe cases, it may even cause damage to the blade or scrap the workpiece. Currently, most milling cutter discs on the market have not been specifically designed to address this problem and only rely on external cooling systems (such as spray coolant) for auxiliary cooling. Although this method can alleviate overheating to a certain extent, it requires continuous consumption of coolant, which increases processing costs. Utility Model Content

[0005] The purpose of the utility model is to provide a milling cutter disc for a milling machine, which adopts a new milling cutter disc structure design, can effectively assist the milling cutter in heat dissipation and cooling, and reduce the heat dissipation cost during mold production and processing.

[0006] In order to solve the above technical problems, the utility model provides a milling cutter disc of a milling machine, comprising a milling cutter disc body, a milling cutter shaft is provided at one end of the milling cutter disc body, a plurality of milling cutter mounting strips distributed in a circumference are provided on the outer side of the milling cutter disc body, and a plurality of threaded mounting holes arranged along the length direction of each milling cutter mounting strip are opened from front to back, a heat dissipation groove is formed between every two milling cutter mounting strips, and a plurality of heat dissipation fins are provided in each heat dissipation groove, each heat dissipation fin extends from the back side of the corresponding milling cutter mounting strip to the front side of the adjacent milling cutter mounting strip, and the heat dissipation fins are disconnected at the corresponding threaded mounting hole to form an operating groove, and an outward-extending wind-gathering blade is provided on the side of each milling cutter mounting strip away from the milling cutter disc body, and each wind-gathering blade is in the shape of an arc bent toward the starting end of the corresponding heat sink, and each wind-gathering blade is larger at one end and smaller at the other end along the direction of the milling cutter shaft.

[0007] By adopting the above technical solution, the milling cutter is installed on the front side of the milling cutter mounting bar. When the milling machine is started to process the mold, the heat generated by the milling cutter during the milling process is transferred to the milling cutter mounting bar and the heat sink. The high-speed rotating milling cutter disc drives the wind-gathering blades to gather the surrounding cold air inward into the heat sink and flows along the heat sink. During the process, the cold air absorbs the heat from the heat sink and the back of the milling cutter mounting bar, and the cold air blows toward the milling cutter along the heat sink, absorbing the heat of the milling cutter. Finally, the milling cutter is cooled on both sides by air, effectively reducing the temperature of the milling cutter during operation.

[0008] The utility model is further configured such that a milling cutter mounting groove is provided on the front side of each milling cutter mounting strip along the length direction thereof.

[0009] The present invention is further configured such that the inner side of each heat dissipation slot is a smooth arc, and each heat dissipation fin is an arc corresponding to the corresponding heat dissipation slot.

[0010] The present invention is further configured such that each heat sink is inclined toward the milling cutter axis.

[0011] The utility model is further configured such that the large and small ends of two adjacent wind-collecting blades are arranged in an up-and-down staggered manner.

[0012] The present invention is further configured such that a weight-reducing groove is provided inwardly at one end of the milling cutter body away from the milling cutter shaft.

[0013] Compared with the prior art, the present invention has the following effects:

[0014] First, by setting up heat dissipation grooves between the milling cutter mounting bars and installing multiple arc-shaped heat sinks in each heat dissipation groove, the heat dissipation area is effectively increased. At the same time, the airflow generated by high-speed rotation is used to guide the cold air to the milling cutter and its mounting part, realizing double-sided air cooling of the milling cutter, significantly improving the heat dissipation efficiency and reducing the temperature of the milling cutter during operation, thereby extending the service life of the milling cutter and reducing the production cost of liquid cooling.

[0015] Secondly, the unique air-gathering blade design not only increases the amount of cool air entering the heat sink, but also effectively prevents the re-aggregation of heated air through its staggered arrangement, further improving the efficiency of the cooling system.

[0016] Third, the heat sink is set upward so that the absorbed air is directed upward out of the milling cutter disc and staggered with the wind-gathering blades, effectively avoiding the re-aggregation of the absorbed air and further improving the efficiency of the heat dissipation system. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is the overall structural entity diagram of the utility model;

[0018] Figure 2 It is a plan view of the bottom structure of the utility model.

[0019] Among them, 1. milling cutter body; 2. milling cutter shaft; 3. weight reduction groove; 4. milling cutter mounting strip; 5. milling cutter mounting groove; 6. threaded mounting hole; 7. heat dissipation groove; 8. heat sink; 9. operation groove; 10. wind gathering blade. DETAILED DESCRIPTION

[0020] The following is a detailed description of the milling cutter head for a milling machine proposed by the present invention, combined with the accompanying drawings and specific embodiments. The advantages and features of the present invention will become more apparent from the following description. It should be noted that the drawings are highly simplified and not to exact scale, and are intended solely to facilitate and clearly illustrate the embodiments of the present invention. Identical or similar reference numerals in the drawings represent identical or similar components.

[0021] Example, see Figure 1-2A milling cutter disc for a milling machine includes a cutter disc body 1. A cutter shaft 2 is disposed at one end of the cutter disc body 1, which is connected to the milling machine via the cutter shaft 2. A weight-reducing groove 3 is provided inwardly at the end of the cutter disc body 1, away from the cutter shaft 2, to reduce the overall weight. Four cutter mounting bars 4 are provided on the outside of the cutter disc body 1 in a circumferential arrangement. Each cutter mounting bar 4 has a cutter mounting groove 5 extending along its length on its front side. Three threaded mounting holes 6 are provided along its length from front to back through each cutter mounting bar 4. A milling cutter is mounted in its corresponding cutter mounting groove 5 via bolts. A heat dissipation groove 7 is formed between every two milling cutter mounting bars 4. The inner side of each heat dissipation groove 7 is a smooth arc. A plurality of heat dissipation fins 8 are provided in each heat dissipation groove 7. Each heat dissipation fin 8 is an arc corresponding to the corresponding heat dissipation groove 7. The heat dissipation fin 8 is disconnected at the corresponding threaded mounting hole 6 to form an operating groove 9. Each heat dissipation fin 8 extends from the back of the corresponding milling cutter mounting bar 4 to the front side of the adjacent milling cutter mounting bar 4, so that the air flow can not only dissipate the heat of the back of the milling cutter mounting bar 4, but also guide the air flow to the opposite milling cutter to cool the milling cutter. Each heat dissipation fin 8 is inclined toward the milling cutter shaft 2, and the hot air after absorbing heat is guided upward, so that more cold air can enter the heat dissipation groove 7 for heat dissipation. Each milling cutter mounting strip 4 is provided with an outward-extending wind-gathering blade 10 on one side away from the milling cutter disc body 1. Each wind-gathering blade 10 is in the shape of an arc bent toward the starting end of the corresponding heat sink 8. The wind-gathering blade 10 expands outward to facilitate gathering the surrounding air to the heat dissipation groove 7. Each wind-gathering blade 10 is larger at one end and smaller at the other end along the direction of the milling cutter axis 2. The large and small heads of two adjacent wind-gathering blades 10 are staggered up and down. The staggered arrangement enables one of the wind-gathering blades 10 to mainly gather the lower cold air to the heat dissipation groove 7, and the other to mainly gather the upper cold air to the heat dissipation groove 7, thereby reducing the gathering of hot air that has just absorbed heat, increasing the content of cold air, and increasing the heat dissipation effect.

[0022] Working principle: The milling cutter is installed on the front side of the milling cutter mounting bar 4. When the milling machine is started to process the mold, the heat generated by the milling cutter during the milling process is transferred to the milling cutter mounting bar 4 and the heat sink 8. The high-speed rotating milling cutter disc 1 drives the wind-gathering blades 10 to gather the surrounding cold air inward into the heat sink 7 and flow along the heat sink 8. During the process, the cold air absorbs the heat from the heat sink 8 and the back of the milling cutter mounting bar 4, and the cold air blows toward the milling cutter along the heat sink 8, absorbing the heat of the milling cutter. Finally, the milling cutter is cooled on both sides by air, effectively reducing the temperature of the milling cutter during operation.

[0023] It should be noted that the various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same and similar parts between the various embodiments can be referenced to each other.

[0024] The above description is only a description of the preferred embodiment of the present invention and does not limit the scope of the present invention. Any changes and modifications made by ordinary technicians in the field of the present invention based on the above disclosure shall fall within the scope of protection of the claims.

Claims

1. A milling cutter disc for a milling machine, comprising a milling cutter disc body (1), wherein a milling cutter shaft (2) is provided at one end of the milling cutter disc body (1), characterized in that: The outer side of the milling cutter disc (1) is provided with a plurality of milling cutter mounting strips (4) distributed in a circumferential manner, and a plurality of threaded mounting holes (6) arranged along the length direction of each milling cutter mounting strip (4) are opened from front to back, and a heat dissipation groove (7) is formed between every two milling cutter mounting strips (4). A plurality of heat dissipation fins (8) are arranged in each heat dissipation groove (7), and each heat dissipation fin (8) extends from the back side of the corresponding milling cutter mounting strip (4) to the front side of the adjacent milling cutter mounting strip (4). The heat dissipation fins (8) are disconnected at the corresponding threaded mounting hole (6) to form an operating groove (9). Each milling cutter mounting strip (4) is provided with an outwardly extending wind collecting blade (10) on one side away from the milling cutter disc (1), and each wind collecting blade (10) is in the shape of an arc bent toward the starting end of the corresponding heat dissipation fin (8). Each wind collecting blade (10) is larger at one end and smaller at the other end along the direction of the milling cutter axis (2).

2. A milling cutter disc for a milling machine according to claim 1, characterized in that: The front side of each milling cutter mounting bar (4) is provided with a milling cutter mounting groove (5) arranged along the length direction thereof.

3. The milling cutter disc of a milling machine according to claim 1, characterized in that: The inner side of each heat dissipation slot (7) is a smooth arc, and each heat dissipation fin (8) is an arc corresponding to the corresponding heat dissipation slot (7).

4. A milling cutter disc for a milling machine according to any one of claims 1 or 2, characterized in that: Each heat sink (8) is inclined toward the milling cutter axis (2).

5. The milling cutter disc of a milling machine according to claim 1, characterized in that: The large and small ends of two adjacent wind-collecting blades (10) are arranged in an up-and-down staggered manner.

6. The milling cutter disc of a milling machine according to claim 1, characterized in that: A weight-reducing groove (3) is provided inwardly at one end of the milling cutter disc body (1) away from the milling cutter shaft (2).

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