Milling cutter of milling machine

Abstract

The utility model belongs to the technical field of milling machines, and particularly relates to a milling cutter of a milling machine, which comprises a cutter head, a milling cutter and a milling cutter, the tooth parts are radially distributed on the peripheral edge of the cutter head; the cutter body is detachably arranged on the tooth part and used for machining the surface of the workpiece; compared with the prior art, the cutter body can be effectively prevented from being overheated, the abrasion speed of the cutter body is reduced, the machining precision is guaranteed, frequent shutdown for cutter replacement is not needed, and the production efficiency is improved.

Description

Technical Field

[0001] This utility model belongs to the field of milling machine technology, and in particular relates to a milling cutter for a milling machine. Background Technology

[0002] A milling machine is a machine tool that uses milling cutters to machine various surfaces of a workpiece. Typically, the rotation of the milling cutter is the primary motion, while the movement of the workpiece and the milling cutter constitutes the feed motion. It can machine planes, grooves, various curved surfaces, gears, etc. For example, a milling cutter body disclosed in patent application number CN201721829297.8 includes a milling cutter shank, which comprises a milling cutter disc and a milling cutter shank fixed to the top of the milling cutter disc. The sidewall of the milling cutter disc extends to form a first milling cutter arm, a second milling cutter arm, and a third milling cutter arm. A first mounting hole is formed at the bottom of the first milling cutter arm, a second mounting hole is formed at the bottom of the second milling cutter arm, and a third mounting hole is formed at the bottom of the third milling cutter arm. A first milling insert is mounted in the first mounting hole, a second milling insert is mounted in the second mounting hole, and a third milling insert is mounted in the third mounting hole. The distance between the first milling insert and the milling cutter disc is less than the distance between the second milling insert and the milling cutter disc, and the distance between the second milling insert and the milling cutter disc is less than the distance between the third milling insert and the milling cutter disc.

[0003] The existing milling cutter lacks effective heat dissipation during use, resulting in rapid wear and tear, which can affect machining accuracy. Furthermore, the need for frequent machine shutdowns to replace the cutter due to overheating reduces production efficiency. Therefore, improvements are necessary. Utility Model Content

[0004] The purpose of this invention is to address the aforementioned technical problems by providing a milling cutter for a milling machine that effectively dissipates heat, ensures machining accuracy, and improves production efficiency.

[0005] In view of this, the present invention provides a milling cutter for a milling machine, comprising:

[0006] A cutter head, wherein a connecting part for connecting to a milling machine is provided at the center of the cutter head;

[0007] Also includes:

[0008] Teeth, which are radially distributed on the outer peripheral edge of the cutter head;

[0009] The cutting tool body is detachably mounted on the teeth for machining the surface of a workpiece;

[0010] A heat dissipation component is disposed on the teeth to absorb heat from the cutter body.

[0011] In this technical solution, during the milling process, the milling cutter rotates under the drive of the milling machine to process the surface of the workpiece. During the processing, the friction between the cutter body and the workpiece generates heat, which can be absorbed by the heat dissipation component, thereby effectively preventing the cutter body from overheating, reducing the wear rate of the cutter body, ensuring processing accuracy, and eliminating the need for frequent machine stops to replace the cutter, thus improving production efficiency.

[0012] Furthermore, the above technical solution also includes:

[0013] A groove is provided between two adjacent teeth to discharge chips.

[0014] In the above technical solution, the heat dissipation component further includes:

[0015] The heat dissipation groove is disposed inside the tooth section, with one end of the heat dissipation groove forming an opening with the upper surface of the cutter head, and the other end extending to the surface of the cutter body.

[0016] A heat-conducting rod is disposed in a heat dissipation groove and has a heat-conducting copper tube inside the heat-conducting rod.

[0017] Heat dissipation fins are disposed at the top end of the heat-conducting rod;

[0018] The bottom end of the heat-conducting copper tube is connected to the blade body through a heat-conducting medium, and the top end is in contact with the heat dissipation fins.

[0019] In the above technical solution, the heat-conducting copper pipe further includes:

[0020] A capillary layer is arranged on the inner surface of the heat-conducting copper tube;

[0021] An evaporating liquid is disposed at the bottom end of a heat-conducting copper tube.

[0022] In the above technical solution, the upper and lower surfaces of the heat dissipation fins are wavy, and the heat dissipation fins have ventilation grooves that penetrate the heat dissipation fins in their left-right direction.

[0023] The beneficial effects of this utility model are:

[0024] 1. The heat dissipation components effectively reduce tool body heat generation, slow down tool wear, ensure machining accuracy, and eliminate the need for frequent tool replacements, thus improving production efficiency.

[0025] 2. The groove design facilitates the discharge of waste debris, reducing secondary friction and heat generation caused by waste debris accumulation;

[0026] 3. The heat dissipation efficiency of the heat dissipation fins is improved by the wavy surface and ventilation slots on the heat dissipation fins. Attached Figure Description

[0027] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0028] Figure 1 This is a schematic diagram of the structure of a specific embodiment of the present utility model.

[0029] Figure 2 This is a schematic diagram of the cutter head structure of this utility model.

[0030] Figure 3 This is a schematic diagram of the heat dissipation component structure of this utility model.

[0031] Figure 4 This is a schematic cross-sectional view of the heat-conducting rod of this utility model.

[0032] Figure 5 This is a schematic diagram of the thermally conductive copper tube structure of this utility model.

[0033] The markings in the diagram are as follows:

[0034] 1. Cutter head; 2. Connecting part; 3. Tooth; 30. Front surface; 31. Rear surface; 4. Cutter body; 5. Heat dissipation assembly; 50. Heat dissipation groove; 51. Heat-conducting rod; 52. Heat-conducting copper tube; 520. Capillary layer; 521. Evaporating liquid; 53. Heat dissipation fins; 530. Ventilation groove; 531. Corrugated plate; 532. Arc plate; 6. Groove. Detailed Implementation

[0035] 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.

[0036] In the description of this application, it should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. For ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0037] Example 1:

[0038] This application provides a milling cutter for a milling machine, including: a cutter head 1, and a connecting part 2 for connecting to the milling machine is provided at the center of the cutter head 1;

[0039] It also includes: teeth 3, which are radially distributed on the outer periphery of the cutter head 1; a cutter body 4, which is detachably arranged on the teeth 3 for machining the surface of the workpiece; and a heat dissipation assembly 5, which is disposed on the teeth 3 for absorbing the heat on the cutter body 4.

[0040] Furthermore, both the cutter head 1 and the connecting part 2 are conventional structures. The connecting part 2 includes a circular hole located at the geometric center of the cutter head 1, and a clamp is connected to the circular hole. The clamp can be connected to the drive shaft of the milling machine. The toothed part 3 has multiple teeth and is radially integrated on the outer periphery of the cutter head 1. The cutter body 4 is detachably mounted on the toothed part 3 in a conventional manner, and the cutter body 4 is located at the bottom end of the toothed part 3. The cutter head 1 is preferably made of a durable and rigid material such as steel.

[0041] In this embodiment, during the milling process, the milling cutter rotates under the drive of the milling machine to process the surface of the workpiece. During the processing, the cutter body 4 generates heat through friction with the workpiece. The heat on the cutter body 4 can be absorbed by the heat dissipation component 5, thereby effectively preventing the cutter body 4 from overheating, reducing the wear rate of the cutter body 4, ensuring processing accuracy, and eliminating the need for frequent machine stops to replace the cutter, thus improving production efficiency.

[0042] Example 2:

[0043] This embodiment provides a milling cutter for a milling machine. In addition to the technical solutions of the above embodiments, it also has the following technical features, including: a groove 6, which is disposed between two adjacent teeth 3 for discharging chips.

[0044] Furthermore, the toothed part 3 has a front surface 30 and a rear surface 31 for mounting the cutter body 4. The groove 6 is located between the rear surface 31 of the previous toothed part 3 and the front surface 30 of the next toothed part 3. The groove 6 can have a certain inclination to combine with the centrifugal force of the rotating cutter disc 1 to discharge waste chips.

[0045] In this embodiment, when the milling cutter processes the surface of the workpiece, the groove 6 uses the centrifugal force of rotation to discharge the waste chips generated during the processing, thereby preventing the accumulation of waste chips and reducing the secondary friction and heat generation caused by the accumulation of waste chips.

[0046] Example 3:

[0047] This embodiment provides a milling cutter for a milling machine. In addition to the technical solutions of the above embodiments, it also has the following technical features: the heat dissipation assembly 5 further includes: a heat dissipation groove 50, which is disposed inside the tooth portion 3 and has one end forming an opening with the upper surface of the cutter head 1, and the other end extending to the surface of the cutter body 4; a heat-conducting rod 51, which is disposed in the heat dissipation groove 50 and has a heat-conducting copper tube 52 inside; and heat dissipation fins 53, which are disposed at the top end of the heat-conducting rod 51.

[0048] The bottom end of the heat-conducting copper pipe 52 is connected to the blade body 4 through heat conduction via a heat-conducting medium, and the top end is in contact with the heat dissipation fins 53.

[0049] The heat-conducting copper tube 52 also includes: a capillary layer 520, which is arranged on the inner surface of the heat-conducting copper tube 52; and an evaporating liquid 521, which is filled at the bottom end of the heat-conducting copper tube 52.

[0050] Furthermore, the heat dissipation groove 50 consists of a section that is vertically distributed within the cutter head 1 and a section that is horizontally distributed. The heat-conducting rod 51 is fixedly inserted into the vertically distributed section of the heat dissipation groove 50. The horizontally distributed section of the heat dissipation groove 50 is filled with a conventional heat-conducting medium such as thermal grease. The heat-conducting rod 51 can be directly formed by a thermally conductive copper tube 52, or it can be formed by wrapping the thermally conductive copper tube 52 with other materials. The heat absorption end and the heat dissipation end of the thermally conductive copper tube 52 are both located on the surface of the heat-conducting rod 51. The heat dissipation fins 53 are preferably made of copper. The heat dissipation fins 53 and the heat dissipation end of the thermally conductive copper tube 52 can be welded. There are several heat dissipation fins 53, which are evenly distributed along the circumference and axial direction of the heat-conducting tube.

[0051] In this embodiment, when the milling cutter is machining the surface of the workpiece, the heat generated on the cutter body 4 is transferred to the heat-absorbing end of the heat-conducting copper tube 52 of the heat-conducting rod 51 through the heat-conducting medium. After the heat-conducting copper tube 52 absorbs heat, the evaporating liquid 521 absorbs heat and undergoes a phase change, changing from liquid to gas. It then moves to the heat dissipation end of the heat-conducting copper tube 52. Finally, the gaseous evaporating liquid 521 transfers heat to the heat dissipation fins 53. The heat dissipation fins 53 dissipate heat quickly through radiation to the external environment and air convection. After dissipation, the gaseous evaporating liquid 521 becomes liquid again and returns to the bottom of the heat-conducting copper tube 52 through the capillary layer 520. This process is repeated, thereby effectively preventing the cutter body 4 from overheating, reducing the wear rate of the cutter body 4, ensuring machining accuracy, and eliminating the need for frequent machine stops to replace the cutter, thus improving production efficiency.

[0052] Example 4:

[0053] This embodiment provides a milling cutter for a milling machine. In addition to the technical solutions of the above embodiments, it also has the following technical features: the upper and lower surfaces of the heat dissipation fins 53 are wavy, and the heat dissipation fins 53 have ventilation grooves 530 that penetrate the heat dissipation fins 53 in their left-right directions.

[0054] Furthermore, the heat dissipation fins 53 consist of two corrugated plates 531 distributed vertically and an arc-shaped plate 532 arranged at the outer ends of the two corrugated plates 531. The arc-shaped plate 532 is used to connect the outer ends of the two corrugated plates 531, while the inner ends of the two corrugated plates 531 are connected to the heat dissipation end of the heat-conducting copper pipe 52. The corrugated surface of the heat dissipation fins 53 is formed by the surface of the corrugated plates 531, and the ventilation slot 530 is formed by the gap between the two corrugated plates 531.

[0055] In this embodiment, the wavy surface design effectively increases the heat dissipation area of ​​the heat dissipation fins 53, thereby increasing the radiation efficiency of the heat dissipation fins 53. At the same time, the ventilation slots 530 improve the convection effect of the heat dissipation fins 53 during heat dissipation. Compared with the prior art, this utility model effectively improves the heat dissipation efficiency of the heat dissipation fins 53 and further reduces the heat generation phenomenon of the blade body 4.

[0056] The embodiments of this application have been described above with reference to the accompanying drawings. Unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other. This application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. A milling cutter for a milling machine, comprising: The cutter head (1) has a connecting part (2) for connecting to the milling machine at its center; Its characteristic is that it further includes: The teeth (3) are radially distributed on the outer peripheral edge of the cutter head (1); The cutter body (4) is detachably arranged on the toothed part (3) for machining the surface of the workpiece; Heat dissipation component (5) is provided on the tooth (3) to absorb heat from the cutter body (4).

2. The milling cutter for a milling machine according to claim 1, characterized in that, Also includes: A groove (6) is provided between two adjacent teeth (3) for discharging chips.

3. The milling cutter for a milling machine according to claim 1, characterized in that, The heat dissipation assembly (5) also includes: Heat dissipation groove (50) is provided inside the tooth (3) and one end of the heat dissipation groove (50) forms an opening with the upper surface of the cutter head (1), and the other end extends to the surface of the cutter body (4). A heat-conducting rod (51) is disposed in a heat dissipation groove (50), and a heat-conducting copper tube (52) is provided inside the heat-conducting rod (51); Heat dissipation fins (53) are disposed at the top of the heat-conducting rod (51); The bottom end of the heat-conducting copper tube (52) is connected to the blade body (4) through heat conduction via a heat-conducting medium, and the top end is in contact with the heat dissipation fins (53).

4. A milling cutter for a milling machine according to claim 3, characterized in that, The heat-conducting copper pipe (52) also includes: A capillary layer (520) is arranged on the inner surface of the heat-conducting copper tube (52); Evaporating liquid (521) is filled at the bottom end of the heat-conducting copper tube (52).

5. A milling cutter for a milling machine according to claim 3, characterized in that: The upper and lower surfaces of the heat dissipation fins (53) are wavy, and the heat dissipation fins (53) have ventilation slots (530) that run through the heat dissipation fins (53) in the left and right direction.

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