A modular, replaceable, recyclable, and remanufacturable carbide grooving insert

Abstract

This invention discloses a modular, replaceable, and recyclable carbide grooving insert, belonging to the field of cutting tool technology. The insert includes a cutter body with positioning grooves at both the top and bottom. Tenon and mortise joints are located at both ends of the cutter body, and cutting heads are welded to these joints. Two cutting heads are symmetrically arranged. This invention effectively solves the problems of traditional one-piece grooving inserts, such as the complete scrapping of the insert due to cutting head wear, significant waste of carbide material, and high operating costs. Simultaneously, it overcomes the defects of one-piece metal-ceramic inserts, such as easy deformation during sintering, easy breakage under clamping pressure, and poor strength. Furthermore, it addresses the industry pain points of lacking a universal, removable modification solution due to differences in positioning groove structures between different brands of inserts, the lack of standardized reuse methods after insert use, and low resource utilization.

Description

Technical Field

[0001] This invention relates to the field of cutting tool technology, and more specifically, to a modular, replaceable, recyclable, and remanufacturable carbide grooving insert. Background Technology

[0002] Grooving inserts are CNC cutting tools specifically designed to cut grooves or slots on the surface of workpieces. They are widely used in machining equipment such as lathes and machining centers, and are the core components for grooving, cutting off, and end face grooving.

[0003] Based on the above, the inventors have discovered that traditional rectangular grooving inserts (such as the MGMN series and Kyocera GMM series) are integral carbide structures, which have the following drawbacks: First, the entire insert is scrapped after the cutting head wears out, resulting in significant waste of carbide material and high operating costs; second, integral inserts made of metal-ceramic material are prone to deformation during sintering and are easily broken under clamping pressure, resulting in poor strength; finally, different brands of inserts have U-shaped (arc U-shaped), V-shaped, and other structures for the positioning groove, and existing technologies lack universal detachable modification solutions, resulting in a lack of standardized reuse methods after use and low resource utilization. Therefore, in view of this, the inventors have researched and improved the existing structure to provide a modular, replaceable, recyclable, and remanufacturable carbide grooving insert, aiming to achieve greater practical value. Summary of the Invention

[0004] 1. Technical problems to be solved

[0005] To address the problems existing in the prior art, the purpose of this invention is to provide a modular, replaceable, and recyclable carbide grooving insert. It can effectively solve the problems of traditional one-piece grooving inserts, such as the scrapping of the entire insert due to cutting head wear, serious waste of carbide materials, and high operating costs. At the same time, it overcomes the defects of one-piece inserts made of metal-ceramic materials, such as easy deformation during sintering, poor precision, and easy breakage under clamping pressure. In addition, it can also solve the industry pain points of the lack of universal disassembly and modification solutions due to the differences in the positioning groove structure of inserts from different brands, the lack of standardized reuse methods after insert use, and low resource utilization.

[0006] 2. Technical Solution

[0007] To solve the above problems, the present invention adopts the following technical solution.

[0008] A modular, replaceable, recyclable, and remanufacturable carbide grooving blade includes a blade body, with positioning grooves at the top and bottom of the blade body, and tenon and mortise joints at both ends of the blade body. Cutting heads are welded onto the tenon and mortise joints, and the two cutting heads are symmetrically arranged.

[0009] The cutting head includes a main rake face, a main cutting edge, two secondary cutting edges, and a main flank face. The main rake face and the secondary cutting edges are respectively disposed between the main flank face and the tool body. The two secondary cutting edges are respectively connected to both sides of the main rake face. The main rake face is connected to the main cutting edge. The main cutting edge and the two secondary cutting edges are provided with cutting angles.

[0010] The cutting head also includes a lower contact surface and a side contact surface;

[0011] The mortise and tenon joint consists of a horizontal joint surface and an inclined joint surface. The horizontal joint surface is adapted to fit and weld with the lower mating surface, and the inclined joint surface is adapted to fit and weld with the side mating surface.

[0012] Furthermore, the top of the blade body is provided with connecting inclined surfaces at both ends, and the two connecting inclined surfaces are symmetrically arranged at both ends of the positioning groove located on the top of the blade body.

[0013] Furthermore, the positioning groove is either a U-shaped or V-shaped structure.

[0014] Furthermore, the cutting head also includes two secondary flank faces, which are connected to the primary flank face by a circular arc segment.

[0015] Furthermore, a tool tip arc is provided at the connection between the main cutting edge and the secondary cutting edge.

[0016] Furthermore, the main rake face has an arc-shaped structure and combines with the connecting inclined surface to form a chip removal groove.

[0017] Furthermore, the blade body is made of cemented carbide and has a long, strip-shaped structure.

[0018] Furthermore, the cutting tip is made of either cemented carbide or cermet.

[0019] 3. Beneficial Effects

[0020] Compared with the prior art, the advantages of this invention are:

[0021] (1) This solution, by setting up a modular combination structure of the tool body and the cutting head, means that when the cutting head wears out due to long-term cutting, it is not necessary to scrap the entire tool; only the worn cutting head needs to be replaced. The tool body can be reused, which greatly reduces the waste of cemented carbide materials and significantly reduces the user's operating costs. At the same time, the cutting head is connected to the tool body with a tenon and mortise joint. The matching and fitting design of the horizontal mating surface and the lower mating surface, and the inclined mating surface and the side mating surface, combined with welding fixation, makes the connection between the cutting head and the tool body firm, effectively improving the overall structural strength. This overcomes the defects of traditional one-piece metal-ceramic tool bodies, such as sintering deformation and easy breakage under clamping pressure, and extends the service life of the tool body.

[0022] (2) In this solution, the positioning grooves opened at the top and bottom of the blade body can be designed as arc U-shaped or V-shaped structures, which can adapt to the requirements of different brands of equipment for positioning groove structure, and provide a universal detachable modification solution for different brands of blades, so that the blades can be recycled through a standardized remanufacturing process after use, which greatly improves the resource utilization rate and conforms to the industry trend of green manufacturing and sustainable development. Attached Figure Description

[0023] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0024] Figure 2 This is a schematic diagram of the disassembled structure of the present invention;

[0025] Figure 3 This is a front view structural diagram of the present invention;

[0026] Figure 4 This is a top view of the structure of the present invention;

[0027] Figure 5 This is a schematic diagram of the blade structure of the present invention.

[0028] Explanation of the labels in the diagram:

[0029] 1. Blade body;

[0030] 2. Positioning groove;

[0031] 3. Mortise and tenon joint; 301. Horizontal joint surface; 302. Inclined joint surface;

[0032] 4. Main rake face;

[0033] 5. Main cutting edge;

[0034] 6. Secondary cutting edge;

[0035] 7. Main back face;

[0036] 8. Lower bonding surface;

[0037] 9. Side bonding surface;

[0038] 10. Connect the inclined planes;

[0039] 11. Secondary back face;

[0040] 12. Circular arc segment;

[0041] 13. The tip of the knife is rounded. Detailed Implementation

[0042] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0043] Example:

[0044] Please see Figures 1-5 A modular, replaceable, and recyclable carbide grooving insert includes a cutter body 1. Positioning grooves 2 are provided at both the top and bottom of the cutter body 1. Tenon and mortise joints 3 are provided at both ends of the cutter body 1, and cutting heads are welded onto the tenon and mortise joints 3. The two cutting heads are symmetrically arranged. During use, the cutter body 1 can be recycled, requiring only the cutting heads to be replaced, significantly reducing the consumption of carbide materials and substantially lowering enterprise operating costs. Simultaneously, due to the increasing scarcity of tungsten resources, the core raw material for carbide, this solution effectively conserves tungsten resources by reducing material waste, aligning with the national development needs for resource conservation. Furthermore, the material and grade of the cutting heads can be flexibly replaced, achieving "one cutter, multiple uses," adapting to diverse machining conditions.

[0045] The cutting head includes a main rake face 4, a main cutting edge 5, two secondary cutting edges 6 and a main flank face 7. The main rake face 4 and the secondary cutting edges 6 are respectively disposed between the main flank face 7 and the tool body 1. The two secondary cutting edges 6 are respectively connected to both sides of the main rake face 4. The main rake face 4 is connected to the main cutting edge 5. The main cutting edge 5 and the two secondary cutting edges 6 are provided with cutting angles.

[0046] The cutting head also includes a lower contact surface 8 and a side contact surface 9;

[0047] The mortise and tenon joint 3 consists of a horizontal mating surface 301 and an inclined mating surface 302. The horizontal mating surface 301 is adapted to fit and weld with the lower mating surface 8, and the inclined mating surface 302 is adapted to fit and weld with the side mating surface 9. In use, the shape of the mortise and tenon joint 3 is not limited by the angle. The horizontal mating surface 301 and the inclined mating surface 302 can be used. The inclined mating surface 302 can improve the welding strength by interlocking the inclined surfaces on both sides and prevent the cutting head from falling off. In addition, it should be noted that the selection of the mating surface angle should take into account both welding strength and ease of cleaning. A smaller inclination angle is easier to clean the copper and welding residue in the groove during subsequent disassembly, reducing cleaning costs. The specific optimal angle can be determined according to the actual working conditions.

[0048] See Figure 1 and Figure 5 The top two ends of the blade body 1 are provided with connecting inclined surfaces 10, and the two connecting inclined surfaces 10 are symmetrically arranged at both ends of the positioning groove 2 located on the top of the blade body 1.

[0049] See Figure 1 and Figure 2 The positioning groove 2 is either a U-shaped or V-shaped structure. When in use, the positioning groove 2 with the U-shaped or V-shaped structure can be adapted to clamp tool holders of different brands.

[0050] See Figure 1 and Figure 3 The cutting head also includes two secondary flank faces 11, which are connected to the main flank face 7 by a circular arc segment 12.

[0051] See Figure 1 and Figure 4 The main cutting edge 5 and the secondary cutting edge 6 are connected by a tool tip arc 13, and the main cutting edge 5 exists in both straight and arc forms.

[0052] See Figure 1 and Figure 3 The main rake face 4 has an arc-shaped structure and combines with the connecting inclined surface 10 to form a chip removal groove.

[0053] See Figure 1 The cutter body 1 is made of cemented carbide and has a long strip shape. It mainly bears the force during the clamping process and the auxiliary support force during use, providing rigid support for the cutting head and solving the industry pain point of metal ceramic inserts being crushed during clamping.

[0054] See Figure 1 The cutting tool head is made of either cemented carbide or cermet material and mainly bears the cutting force during the cutting process.

[0055] Working Principle: During use, the tool body 1 first achieves stable clamping. Its elongated shape, made of carbide, effectively bears the auxiliary support forces during clamping and use, providing rigid support for the cutting head and successfully solving the industry pain point of easy breakage of metal-ceramic inserts during clamping. The cutting head, whether made of carbide or metal-ceramic, can be flexibly selected according to specific cutting needs, primarily bearing the cutting forces during the cutting process. The U-shaped or V-shaped positioning groove 2 can accommodate tool holders from different brands, greatly enhancing the versatility and adaptability of the inserts. Users do not need to purchase tool holders separately for different inserts, reducing operating costs. The main rake face 4, with its arc-shaped structure, combined with the connecting inclined surface 10 to form a chip removal groove, efficiently guides chips out during cutting, preventing chip accumulation that affects cutting accuracy and machining efficiency. The circular arc 13 at the connection between the main cutting edge 5 and the secondary cutting edge 6, and the transition through the circular arc segment 12 between the secondary flank face 11 and the main flank face 7, effectively enhance the strength and durability of the cutting edges, reduce stress concentration, and extend the service life of the inserts. When the cutting head wears down or reaches the end of its service life, due to the modular design, only the cutting head needs to be replaced; the cutter body 1 can be retained and reused. This not only significantly reduces replacement costs but also reduces resource waste. Furthermore, when the cutting head wears down, the old module can be disassembled, the tenon-and-mortise joint 3 of the cutter body 1 can be cleaned and reground, and a new cutting head can be welded and ground for repair. The worn inserts can be recycled and remanufactured, achieving material recycling and aligning with the trends of green manufacturing and sustainable development. This design allows the inserts to maintain cutting performance while possessing higher economic efficiency and environmental friendliness.

[0056] Finally, it should be noted that in the description of this invention, the terms "vertical," "upper," "lower," "horizontal," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0057] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0058] The above description is merely a preferred embodiment of the present invention; however, the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and its improved concepts, should be covered within the scope of protection of the present invention.

Claims

1. A modular, replaceable, recyclable carbide grooving insert, comprising a cutter body (1), characterized in that: The top and bottom of the blade body (1) are provided with positioning grooves (2), and both ends of the blade body (1) are provided with tenon joints (3). Cutting heads are welded on the tenon joints (3), and the two cutting heads are symmetrically arranged. The cutting head includes a main rake face (4), a main cutting edge (5), two secondary cutting edges (6) and a main flank face (7). The main rake face (4) and the secondary cutting edges (6) are respectively disposed between the main flank face (7) and the tool body (1). The two secondary cutting edges (6) are respectively connected to both sides of the main rake face (4). The main rake face (4) is connected to the main cutting edge (5). The main cutting edge (5) and the two secondary cutting edges (6) are provided with cutting angles. The cutting head also includes a lower contact surface (8) and a side contact surface (9). The tenon joint (3) is composed of a horizontal joint surface (301) and an inclined joint surface (302). The horizontal joint surface (301) is adapted to fit and weld with the lower mating surface (8), and the inclined joint surface (302) is adapted to fit and weld with the side mating surface (9).

2. The carbide grooving insert with modular head replacement and recyclability as described in claim 1, characterized in that: The top two ends of the blade body (1) are provided with connecting inclined surfaces (10), and the two connecting inclined surfaces (10) are symmetrically arranged at both ends of the positioning groove (2) located at the top of the blade body (1).

3. The carbide grooving insert with modular head replacement and recyclability according to claim 1, characterized in that: The positioning groove (2) is one of the following: a circular arc U-shaped or V-shaped structure.

4. The carbide grooving insert with modular head replacement and recyclability according to claim 1, characterized in that: The cutting head also includes two secondary flank faces (11), which are connected to the main flank face (7) by a circular arc segment (12).

5. A modular, replaceable, and recyclable carbide grooving insert according to claim 1, characterized in that: The connection between the main cutting edge (5) and the secondary cutting edge (6) is provided with a blade tip arc (13).

6. The carbide grooving insert with modular head replacement and recyclability according to claim 1, characterized in that: The main rake face (4) has an arc-shaped structure and is combined with the connecting inclined surface (10) to form a chip removal groove.

7. A modular, replaceable, and recyclable carbide grooving insert according to claim 1, characterized in that: The blade body (1) is made of cemented carbide and has a long strip shape.

8. A modular, replaceable, and recyclable carbide grooving insert according to claim 1, characterized in that: The cutting head is made of either cemented carbide or cermet.

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