Indexable rail mill

Abstract

The utility model provides a rail milling cutter of indexable, including rail cutter body of indexable, still include: insert structure, insert structure sets up on the lateral wall of rail cutter body of indexable, heat dissipation structure, heat dissipation structure sets up in the inner side wall of rail cutter body of indexable. Through the insert to the rail is carried out milling processing, the chip produced in milling processing, through the chip removal groove carries out the chip removal, is convenient to make rail milling cutter of indexable better carries out milling processing, when milling processing through rail cutter body of indexable, the heat produced by the inner side fin is exported to the outside, accelerates the heat dissipation of rail cutter body of indexable, in the rotation process of rail cutter body of indexable, the flowing air passes through the ventilation groove of top oblique setting and blows to the fin of inner side wall, further accelerates the heat dissipation of fin, is convenient to make rail cutter body of indexable have better heat dissipation effect, prolongs the service life of rail milling cutter of indexable.

Description

Technical Field

[0001] This utility model relates to the field of milling cutter technology, and in particular to indexable rail milling cutters. Background Technology

[0002] Indexable end mills are multi-bladed end mills that achieve cutting with replaceable inserts made of materials such as cemented carbide and CBN. They are available in roughing and finishing cutters depending on the machining requirements, offering superior cutting speed and precision compared to traditional high-speed steel tools. The design incorporates a combination of axial and radial rake angles, with the principal cutting edge angle and tooth pitch flexibly configured based on material properties and machining scenarios. This type of tool has evolved into a complete product system, including face mills and three-sided mills, and is widely used in mold manufacturing, mining machinery, and other fields.

[0003] Among existing Chinese utility models, CN213794444U discloses a circular arc planer milling cutter, which exhibits good installation stability and high machining accuracy. The milling cutter includes a cutter head, insert one, and insert two. The cutter head is composed of an integrally formed cylinder and an inverted frustum. Multiple insert mounting positions are provided on the side surface of the inverted frustum. Insert one and insert two are mounted in these mounting positions with screws. Each insert mounting position is machined with a chip removal groove to facilitate chip discharge. Four mounting holes are evenly distributed around the lower surface of the cutter head for mounting the cutter head on an external tool holder. One insert one and two insert two together form an integral cutting tool set, and multiple cutting tool sets are mounted on the cutter head. This milling cutter utilizes two milling inserts with different cutting edge shapes overlapping to form the cutting edge, greatly improving machining accuracy. Simultaneously, the cutter head is connected to the external tool holder via multiple mounting holes using fasteners, ensuring the stability of the cutter head during operation.

[0004] Referring to the aforementioned circular arc planer end mill, this milling cutter generates a significant amount of heat during milling operations. However, the lack of a corresponding heat dissipation structure causes the temperature to rise continuously during processing, negatively impacting the overall lifespan of the milling cutter. Therefore, how to improve the heat dissipation of the indexable rail milling cutter body and extend its service life is a crucial issue that needs to be addressed in the design of indexable rail milling cutters. Utility Model Content

[0005] This invention provides an indexable rail end mill to address the problem of the lack of a corresponding heat dissipation structure on end mills.

[0006] This utility model solves the above-mentioned technical problems through the following technical solutions:

[0007] This utility model provides an indexable rail milling cutter, including an indexable rail cutter body, and further comprising:

[0008] A blade structure is disposed on the side wall of the indexable rail cutter body;

[0009] A heat dissipation structure is provided on the inner side wall of the indexable rail cutter body, and the heat dissipation structure assists the indexable rail cutter body in dissipating heat.

[0010] Preferably, the bottom sidewall of the indexable rail cutter body is a circular structure that tapers inward to form a frustum shape.

[0011] Preferably, chip removal grooves are provided at equal intervals on the side wall of the indexable rail cutter body, and the chip removal grooves penetrate the side walls at both ends of the indexable rail cutter body.

[0012] In this technical solution, the chips generated during milling are removed through chip removal grooves, allowing the indexable rail milling cutter to perform milling operations more effectively.

[0013] Preferably, an inclined groove is formed on one side wall of the chip removal groove.

[0014] In this technical solution, the inclined groove ensures that the cutting edge of the blade is no longer obstructed by the indexable rail cutter body.

[0015] Preferably, the blade structure includes a blade, a blade groove, and a fixing bolt. The blade grooves are equally spaced on the side wall of the indexable rail cutter body. The blade grooves are connected to the chip removal groove. The size of the blade matches the blade groove. The blade is fixedly connected to the blade groove by the fixing bolt.

[0016] In this technical solution, the rotation of the indexing rail cutter body drives the rotation of the cutting blade, and the cutting blade performs milling processing on the rail.

[0017] Preferably, the cutting edge of the blade is placed in an oblique groove.

[0018] In this technical solution, the blade can be removed and replaced simply by unscrewing the fixing bolt.

[0019] Preferably, the heat dissipation structure includes ventilation slots, heat sinks, and heat dissipation grooves. The heat dissipation grooves are formed inside the side wall of the indexable rail cutter body, and the ventilation slots are formed at equal intervals on the top side wall of the indexable rail cutter body. The ventilation slots and the heat dissipation grooves are interconnected, and the ventilation slots are fixedly connected at equal intervals to the inner side wall of the heat dissipation groove.

[0020] In this technical solution, the heat sink on the inner wall of the heat dissipation groove can increase the heat dissipation area on the indexable rail cutter body. When the indexable rail cutter body is milled, the heat generated is discharged outward by the heat sink on the inner side, which accelerates the heat dissipation of the indexable rail cutter body. During the rotation of the indexable rail cutter body, the flowing air blows through the ventilation slot set at the top to the heat sink on the inner wall, which further accelerates the heat dissipation of the heat sink.

[0021] Preferably, the ventilation slot is arranged at an angle.

[0022] In this technical solution, the angled ventilation slots make it easier for flowing air to enter the heat dissipation grooves.

[0023] Preferably, the indexable rail cutter body has a mounting hole 1 in the middle of its side wall, and four mounting holes 2 are equally spaced on the side wall of the indexable rail cutter body. The four mounting holes 2 are distributed around the mounting hole 1, and a circular groove is formed on the bottom side wall of the indexable rail cutter body.

[0024] Preferably, both mounting hole one and mounting hole two are connected to the circular groove.

[0025] In this technical solution, the indexable rail cutter body is mounted on an external tool holder via mounting holes one and two on the side wall using a fixing component, and then the external tool holder is mounted on a milling machine.

[0026] Based on common knowledge in the field, the above-mentioned preferred conditions can be combined arbitrarily to obtain various preferred embodiments of this utility model.

[0027] The positive and progressive effects of this utility model are as follows:

[0028] 1. The indexable rail cutter body rotates, which drives the cutting blade to rotate. The cutting blade performs milling on the rail. The chips generated during milling are removed through the chip removal groove, which facilitates better milling by the indexable rail cutter.

[0029] 2. The heat dissipation fins on the inner wall of the heat dissipation groove can increase the heat dissipation area on the indexable rail cutter body. When the indexable rail cutter body is milling, the heat generated is dissipated to the outside by the inner heat dissipation fins, which accelerates the heat dissipation of the indexable rail cutter body. During the rotation of the indexable rail cutter body, the flowing air blows through the ventilation slots set at the top and blows towards the heat dissipation fins on the inner wall, which further accelerates the heat dissipation of the heat dissipation fins. This makes the indexable rail cutter body have a better heat dissipation effect and extends the service life of the indexable rail milling cutter. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model.

[0031] Figure 2 This is a three-dimensional structural diagram of the bottom of the present invention from an oblique view.

[0032] Figure 3 This is a top view of the overall structure of this utility model.

[0033] Figure 4This is a schematic diagram of the overall structure of this utility model from a bottom view.

[0034] Figure 5 This is a schematic diagram of the overall internal structure of this utility model.

[0035] Explanation of reference numerals in the attached figures

[0036] 1. Indexable rail cutter body; 2. Chip removal groove; 3. Blade structure; 301. Blade; 302. Blade groove; 303. Fixing bolt; 4. Inclined groove; 5. Mounting hole one; 6. Mounting hole two; 7. Heat dissipation structure; 701. Ventilation groove; 702. Heat sink; 703. Heat dissipation groove; 8. Circular groove. Detailed Implementation

[0037] The present invention will be further described below by way of embodiments, but the present invention is not limited to the scope of the embodiments described herein.

[0038] like Figure 1-5 As shown, the indexable rail end mill includes an indexable rail cutter body 1, and also includes:

[0039] Blade structure 3, which is disposed on the side wall of the indexable rail cutter body 1;

[0040] The heat dissipation structure 7 is disposed on the inner side wall of the indexable rail cutter body 1, and the heat dissipation structure 7 assists the indexable rail cutter body 1 in dissipating heat.

[0041] The bottom sidewall of the indexable rail cutter body 1 is circular and then tapers inward to form a frustum-shaped structure.

[0042] Chip removal grooves 2 are provided at equal intervals on the side wall of the indexable rail cutter body 1, and the chip removal grooves 2 penetrate the side walls at both ends of the indexable rail cutter body 1.

[0043] The chips generated during milling are removed through the chip removal groove 2, allowing the indexable rail milling cutter to perform milling operations more effectively.

[0044] An inclined groove 4 is provided on one side wall of the chip removal groove 2.

[0045] The slanted groove 4 ensures that the cutting edge of the blade 301 is no longer obstructed by the indexable rail cutter body 1.

[0046] The blade structure 3 includes a blade 301, a blade 301 groove, and a fixing bolt 303. The blade 301 groove is equally spaced on the side wall of the indexable rail cutter body 1. The blade 301 groove is connected to the chip removal groove 2. The size of the blade 301 and the blade 301 groove are matched. The blade 301 is fixedly connected in the blade 301 groove by the fixing bolt 303.

[0047] The rotation of the indexing rail cutter body 1 drives the rotation of the cutting blade 301, which then performs milling operations on the rail.

[0048] The cutting edge of the blade 301 is placed in the oblique groove 4.

[0049] Simply unscrew the fixing bolt 303 to remove the blade 301 for replacement.

[0050] The heat dissipation structure 7 includes a ventilation slot 701, a heat sink 702, and a heat dissipation groove 703. The heat dissipation groove 703 is formed inside the side wall of the indexable rail cutter body 1. The ventilation slot 701 is formed at equal intervals on the top side wall of the indexable rail cutter body 1. The ventilation slot 701 and the heat dissipation groove 703 are interconnected. The ventilation slot 701 is fixedly connected at equal intervals to the inner side wall of the heat dissipation groove 703.

[0051] The heat sink 702 on the inner wall of the heat dissipation groove 703 can increase the heat dissipation area on the indexable rail cutter body 1. When the indexable rail cutter body 1 is milled, the heat generated is discharged outward by the heat sink 702 on the inner side, which accelerates the heat dissipation of the indexable rail cutter body 1. During the rotation of the indexable rail cutter body 1, the flowing air is blown towards the heat sink 702 on the inner wall through the ventilation groove 701 set at the top, which further accelerates the heat dissipation of the heat sink 702.

[0052] The ventilation slot 701 is arranged at an angle.

[0053] The angled ventilation slots 701 make it easier for flowing air to enter the heat dissipation grooves 703.

[0054] The indexable rail cutter body 1 has a mounting hole 5 in the middle of its side wall, and four mounting holes 6 are equally spaced on the side wall of the indexable rail cutter body 1. The four mounting holes 6 are distributed around the mounting hole 5. A circular groove 8 is provided on the bottom side wall of the indexable rail cutter body 1.

[0055] Both mounting hole 5 and mounting hole 6 are connected to the circular groove 8.

[0056] The indexable rail cutter body 1 is mounted on an external tool holder via mounting holes 5 and 6 on its side wall using a fastener, and then mounted on a milling machine by the external tool holder.

[0057] In use, the indexable rail cutter body 1 is mounted on an external tool holder through mounting holes 5 and 6 on the side wall using a fixing component. The external tool holder is then mounted on a milling machine. The rotation of the indexable rail cutter body 1 drives the blade 301 to rotate, and the blade 301 performs milling on the rail. The chips generated during milling are discharged through the chip removal groove 2, so that the indexable rail milling cutter can perform milling better.

[0058] The heat dissipation fins 702 on the inner wall of the heat dissipation groove 703 can increase the heat dissipation area on the indexable rail cutter body 1. When the indexable rail cutter body 1 is milling, the heat generated is dissipated to the outside by the heat dissipation fins 702 on the inner side, which accelerates the heat dissipation of the indexable rail cutter body 1. During the rotation of the indexable rail cutter body 1, the flowing air blows through the ventilation groove 701 set at the top to the heat dissipation fins 702 on the inner wall, which further accelerates the heat dissipation of the heat dissipation fins 702. Thus, the indexable rail cutter body 1 has a better heat dissipation effect and extends the service life of the indexable rail milling cutter. When the insert 301 needs to be replaced, it is only necessary to unscrew and remove the fixing bolt 303.

[0059] This utility model is not limited to the above-described embodiments. Any changes in its shape or structure fall within the protection scope of this utility model. The protection scope of this utility model is defined by the appended claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principles and essence of this utility model, but all such changes and modifications fall within the protection scope of this utility model.

Claims

1. An indexable rail end mill, comprising an indexable rail cutter body (1), characterized in that, Also includes: Blade structure (3), the blade structure (3) is disposed on the side wall of the indexable rail cutter body (1); Heat dissipation structure (7) is provided on the inner side wall of the indexable rail cutter body (1), and the heat dissipation structure (7) assists the indexable rail cutter body (1) in heat dissipation; The heat dissipation structure (7) includes a ventilation slot (701), a heat sink (702), and a heat dissipation groove (703). The heat dissipation groove (703) is opened in the side wall of the indexable rail cutter body (1). The ventilation slot (701) is opened at equal intervals on the top side wall of the indexable rail cutter body (1). The ventilation slot (701) and the heat dissipation groove (703) are interconnected. The heat dissipation groove (703) is fixedly connected at equal intervals to the inner side wall of the heat dissipation groove (703).

2. The indexable rail end mill as described in claim 1, characterized in that: The bottom sidewall of the indexable rail cutter body (1) is circular and shrinks inward to form a frustum-shaped structure.

3. The indexable rail end mill as described in claim 1, characterized in that: Chip removal grooves (2) are provided at equal intervals on the side wall of the indexable rail cutter body (1), and the chip removal grooves (2) penetrate the side walls at both ends of the indexable rail cutter body (1).

4. The indexable rail end mill as described in claim 3, characterized in that: An inclined groove (4) is provided on one side wall of the chip removal groove (2).

5. The indexable rail end mill as described in claim 1, characterized in that: The blade structure (3) includes a blade (301), a blade (301) groove and a fixing bolt (303). The blade (301) groove is equally spaced on the side wall of the indexable rail cutter body (1). The blade (301) groove is connected to the chip removal groove (2). The size of the blade (301) and the blade (301) groove are matched. The blade (301) is fixedly connected in the blade (301) groove by the fixing bolt (303).

6. The indexable rail end mill as described in claim 5, characterized in that: The cutting edge of the blade (301) is placed in the oblique groove (4).

7. The indexable rail end mill as described in claim 1, characterized in that: The ventilation slot (701) is set at an angle.

8. The indexable rail end mill as described in claim 1, characterized in that: The indexable rail cutter body (1) has a mounting hole 1 (5) in the middle of its side wall. The indexable rail cutter body (1) has four mounting holes 2 (6) at equal intervals on its side wall. The four mounting holes 2 (6) are distributed around the mounting hole 1 (5). The indexable rail cutter body (1) has a circular groove (8) on its bottom side wall.

9. The indexable rail end mill as described in claim 8, characterized in that: Both mounting hole one (5) and mounting hole two (6) are connected to the circular groove (8).

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