Welded five-pointed star blade

Abstract

The utility model provides a welding type five-pointed star blade, and belongs to the technical field of numerical control blade production. The base body is in a pentagram shape, the thickness of the base body is matched with the width of the tool bit, a matching hole is formed in the middle of the base body, and mounting grooves are formed in all corners of the base body in the thickness direction of the base body; the tool bits are welded to the mounting grooves, and cutting edges of the tool bits face the outer side of the base body. The welding type five-pointed star blade is provided with the chip breaker groove, the production mode is simple, and the problem that domestic hard alloy blade blank production enterprises cannot open a mold for pressing can be effectively solved.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of numerical control blade production, and particularly relates to a welded five-pointed star blade. BACKGROUND

[0002] The numerical control blade, namely indexable blade, is used for cutting workpieces by being installed on the tool bar of a machine tool. Generally, the numerical control blade is provided with a chip breaking groove, which can cut off the chip during the cutting process, avoid the chip winding, control the outflow direction of the chip, maintain the machining surface precision, and prolong the service life of the blade.

[0003] At present, there are still some difficulties in producing the five-pointed star blade with a chip breaking groove. The main reasons are as follows: the blank pressing process of the overall five-pointed star blade with a chip breaking groove is complex, domestic hard alloy blade blank production enterprises cannot open the mold for pressing, and the cost of imported molds is extremely high. CONTENT OF THE UTILITY MODEL

[0004] In order to solve the above problems of the prior art, the application provides a welded five-pointed star blade, which has a chip breaking groove and a simple production mode, and can effectively solve the problem that domestic hard alloy blade blank production enterprises cannot open the mold for pressing.

[0005] In order to achieve the above purpose, the application adopts the following technology:

[0006] A welded five-pointed star blade comprises:

[0007] A tool head, which is provided with a chip breaking groove;

[0008] A base body, which is in the shape of a five-pointed star, the thickness of the base body is matched with the width of the tool head, a matching hole is arranged in the middle of the base body, and a mounting groove is arranged in each corner of the base body along the thickness direction of the base body;

[0009] The tool head is welded on the mounting groove, and the cutting edge of the tool head faces the outside of the base body.

[0010] Specifically, the tool head is in a block shape, the top surface and the bottom surface of the tool head are parallel, the two side surfaces of the tool head are parallel to each other and perpendicular to the top surface and the bottom surface, the included angle between one end surface of the tool head and the bottom surface is obtuse, the cutting edge of the tool head is formed by the included angle between the top surface and the other end surface, and the chip breaking groove is arranged on the top surface of the tool head; the mounting groove is in a V shape, the included angle between the two end surfaces of the mounting groove is equal to the included angle between the one end surface of the tool head and the bottom surface, one end surface of the mounting groove is matched with the one end surface of the tool head, and the other end surface of the mounting groove is matched with the bottom surface of the tool head.

[0011] Specifically, two first matching grooves are arranged on the tool head and distributed along the one end surface and the two side edges of the bottom surface, two second matching grooves are arranged on the mounting groove and distributed along the two side edges of the end surface, the first matching grooves are matched with the second matching grooves, and the first matching grooves are used for placing welding material.

[0012] Specifically, the two end faces of the mounting groove are provided with retreat grooves, and one end of each of the two retreat grooves penetrates through the two ends of the corner of the base body where the retreat groove is located.

[0013] The utility model has the advantages that:

[0014] 1. The cutter head with a chip breaker groove is welded on the mounting groove provided at each corner of the base body in the shape of a five-pointed star, which replaces the production process of pressing the whole five-pointed star blade blank with a chip breaker groove, solves the problem that the domestic whole five-pointed star blade blank with a chip breaker groove cannot be pressed by mold opening, saves the mold opening cost of the blank, and reduces the production cost of the five-pointed star blade blank of the hard alloy blade;

[0015] 2. The first matching groove and the second matching groove are matched during welding, which can uniformly place welding material at the welding position, is beneficial to improving the firmness of the welding between the cutter head and the base body, improves the reliability of the blade, and can separate the old cutter head from the base body by using the retreat groove, grind and weld the cutter head to realize repeated use, thereby further reducing the production cost, and different cutter heads with different chip breaker groove types can be selected according to the machining conditions and the machined material to be welded with the base body, which is not only beneficial to improving the diversity of the blade product, but also can meet different conditions and improve the flexibility of cutting processing. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 is a structure schematic view of the blade of the embodiment of the application.

[0017] Figure 2 is a structure schematic view of the mounting groove of the embodiment of the application.

[0018] Figure 3 is a structure schematic view of the cutter head of the embodiment of the application.

[0019] Figure 4 is Figure 1 is an enlarged view of part A in the figure.

[0020] The drawings show that: 1 is a cutter head, 11 is a chip breaker groove, 12 is a first matching groove, 2 is a base body, 21 is a mounting groove, 22 is a second matching groove, 23 is a retreat groove, and 24 is a matching hole. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the embodiments of the utility model will be described in detail below with reference to the drawings, but the embodiments described in the utility model are part of the embodiments of the utility model, not all the embodiments.

[0022] Embodiment 1

[0023] The embodiment of the present application provides a welded five-pointed star blade, which comprises a tool head 1 and a base body 2. Figures 1-3

[0024] The tool head 1 is provided with a chip breaker groove 11, which is used for controlling the outflow direction of the cutting chip during cutting, maintaining the precision of the machining surface, reducing the cutting resistance and prolonging the tool life. The base body 2 is in the shape of a five-pointed star, and the thickness of the base body 2 is matched with the width of the tool head 1. A matching hole 24 is formed in the middle of the base body 2 and is used for mounting the tool bar. An installation groove 21 is formed in each corner of the base body 2 along the thickness direction. In application, the tool head 1 is welded on the installation groove 21, and the cutting edge of the tool head 1 faces the outside of the base body 2. After welding, a five-pointed star blade blank with the chip breaker groove is formed, and then the five-pointed star blade blank is ground to meet the precision requirements of the five-pointed star blade. By welding the tool head 1 with the chip breaker groove 11 on the installation groove 21 formed in each corner of the base body 2 in the shape of a five-pointed star, the production process of pressing the whole five-pointed star blade blank with the chip breaker groove is replaced, the problem that the alloy blade blank factory in China cannot press the blank is effectively solved, and the cost of importing the mold is saved.

[0025] Specifically, after the welded five-pointed star blade is used for a period of time, the tool head 1 is worn, the tool head 1 and the base body 2 are retreated, the tool head 1 is separated from the base body 2, the old blade is ground to meet the use requirements, the tool head 1 is welded on the base body 2 again to achieve the purpose of reuse, and the production cost of the enterprise can be further reduced. Since the tool head 1 with the chip breaker groove 11 is separately pressed and formed, and the forms of the chip breaker groove 11 are various at present, for example, the chip breaker groove 11 in the forms of a broken line, a circular arc and parallel, each tool head 1 with the chip breaker groove 11 is suitable for different scenes according to the different groove structures and performances. In actual production, the tool head 1 with different chip breaker grooves 11 can be selected according to the machining conditions and the materials of the machined workpieces to be welded on the installation groove 21 of the base body 2. This is not only beneficial to improve the diversity of the blade products, but also can meet different conditions and improve the flexibility of cutting machining.

[0026] Embodiment 2

[0027] As a further implementation manner of the above embodiment 1, as shown in Figure 2 and Figure 3 , the tool head 1 is in a block shape, the top surface and the bottom surface of the tool head 1 are parallel, the two side surfaces of the tool head 1 are parallel to each other and perpendicular to the top surface and the bottom surface, the included angle between one end surface of the tool head 1 and the bottom surface is obtuse, the cutting edge of the tool head 1 is formed by the included angle between the top surface and the other end surface, and the chip breaker groove 11 is arranged on the top surface of the tool head 1. The installation groove 21 is in a V shape, the included angle between the two end surfaces of the installation groove 21 is equal to the included angle between one end surface of the tool head 1 and the bottom surface of the tool head 1, one end surface of the installation groove 21 is matched with one end surface of the tool head 1, and the other end surface of the installation groove 21 is matched with the bottom surface of the tool head 1.​

[0028] When welding, one end surface of the tool bit 1 is attached to one end surface of the mounting groove 21, and the bottom surface of the tool bit 1 is attached to the other end of the mounting groove 21. Since the included angle formed by the two end surfaces of the mounting groove 21 is equal to the included angle formed by the one end surface and the bottom surface of the tool bit 1, the tool bit 1 can be just clamped in the mounting groove 21, and at the same time, the two sides of the tool bit 1 are coplanar with the two sides of the base body 2 at the mounting groove 21. Then, welding is performed along the junction of the two sides of the tool bit 1 and the mounting groove 21, thereby completing the welding of the tool bit 1. Through the structural design of the tool bit 1 and the mounting groove 21, the welding process of the tool bit 1 is simplified, the welding precision is improved, and the reliability of the welded five-pointed star blade is ensured.

[0029] Example 3

[0030] As further embodiments of the above-mentioned example 1 and example 2, as shown in Figure 2 and Figure 3 , two first matching grooves 12 are provided on the tool bit 1, which are distributed along the one end surface and the two side edges of the bottom surface of the tool bit 1, and two second matching grooves 22 are provided on the mounting groove 21, which are distributed along the two side edges of the end surface of the mounting groove 21, and the first matching grooves 12 are matched with the second matching grooves 22.

[0031] Specifically, as shown in Figures 2-4 , when the tool bit 1 is installed in the mounting groove 21, the two first matching grooves 12 on the tool bit 1 are matched with the two second matching grooves 22 on the mounting groove 21, thereby forming two feeding grooves located on the two sides of the base body 1 and distributed along the weld. The solder flux is uniformly placed in the feeding groove, and the solder is melted by high-frequency welding to weld the tool bit 1 and the base body 2 together. Through the cooperation of the first matching grooves 12 and the second matching grooves 22, the welding process can be further simplified, and the welding of the tool bit 1 and the base body 2 is uniform, thereby ensuring the reliability of the welded five-pointed star blade.

[0032] Example 4

[0033] As further embodiments of the above-mentioned example 3, as shown in Figure 1 and Figure 2 , two retreat grooves 23 are provided on the two end surfaces of the mounting groove 21, one end of each of the two retreat grooves 23 penetrates the two ends of the corner of the base body 2 where the retreat groove 23 is located, and the retreat grooves 23 are located between the two second matching grooves 22. When retreating, one end of the lever is inserted into the retreat groove 23, and the tool bit 1 is pried out of the mounting groove 21, which can quickly separate the tool bit 1 from the base body 2, and is conducive to improving the retreating efficiency.

[0034] The above only describes the preferred embodiments of the present application and is not intended to limit the present application. Obviously, those skilled in the art can make various modifications and changes to the present application without departing from the spirit and scope of the present application.

Claims

1. A welded five-pointed star blade, characterized in that: include: A cutter head (1) having a chip breaker groove (11) provided thereon; The base (2) is in the shape of a five-pointed star, the thickness of the base (2) is adapted to the width of the cutter head (1), a matching hole (24) is provided in the middle of the base (2), and each corner of the base (2) is provided with a mounting groove (21) along its thickness direction; The cutter head (1) is welded to the mounting groove (21), and the cutting edge of the cutter head (1) faces the outside of the base body (2).

2. A welded five-pointed star blade according to claim 1, characterized in that: The cutter head (1) is block-shaped, and its top surface is parallel to its bottom surface. The two side surfaces of the cutter head (1) are parallel to each other and perpendicular to its top surface and bottom surface. The angle formed by one end surface of the cutter head (1) and its bottom surface is an obtuse angle. The cutting edge of the cutter head (1) is formed by the angle between its top surface and the other end surface. The chip breaker groove (11) is provided on the top surface of the cutter head (1); the mounting groove (21) is V-shaped, and the angle formed by the two end surfaces of the mounting groove (21) is equal to the angle formed by one end surface of the cutter head (1) and its bottom surface. One end surface of the mounting groove (21) is adapted to one end surface of the cutter head (1), and the other end surface of the mounting groove (21) is adapted to the bottom surface of the cutter head (1).

3. A welded five-pointed star blade according to claim 2, characterized in that: The cutter head (1) is provided with two first matching grooves (12) respectively distributed along one end face and two side edges of the bottom face thereof; the mounting groove (21) is provided with two second matching grooves (22) respectively distributed along two side edges of the end face thereof; the first matching groove (12) is matched with the second matching groove (22) for placing solder.

4. A welded five-pointed star blade according to claim 3, characterized in that: Desoldering grooves (23) are provided on both end surfaces of the mounting groove (21), one end of each of the two desoldering grooves (23) respectively passes through the two ends of a corner of the base (2) where the desoldering grooves (23) are located, and the desoldering grooves (23) are located between the two second matching grooves (22).

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