Stamping die and stamping method for forming bevel tooth blade through extrusion process

Abstract

The invention relates to the technical field of stamping dies, in particular to a stamping die for forming a bevel tooth blade through an extrusion process and a stamping method thereof.The stamping die comprises an upper die body and a lower die body which are matched in a stamping mode, a lower saw blade fixing base is arranged on the lower die body, and an upper saw blade fixing base and a tooth extrusion stamping knife are arranged on the upper die body; wherein an elastic compression mechanism is arranged between the upper saw blade fixing seat and the upper die main body, the upper saw blade fixing seat and the lower saw blade fixing seat can drive the elastic compression mechanism to contract after compressing a workpiece to be processed, so that the upper saw blade fixing seat contracts, and teeth are exposed to extrude the stamping knife to complete the cutting action with the lower saw blade fixing seat; by means of an extrusion forming mode, a saw blade with a machined bevel tooth blade structure is subjected to stamping extrusion forming through a stamping die, and the bevel tooth blade structure is formed on one side of a workpiece to be machined in a waste extrusion mode by means of mutual cooperation of an upper rack extrusion punching face and a lower rack extrusion punching face.

Description

Technical Field

[0001] The invention relates to the technical field of stamping dies, in particular to a stamping die for forming a bevel tooth edge by an extrusion process and a stamping method thereof. Background Art

[0002] In the field of saw blade processing, especially for saw blades with large thickness and requiring processing at a specific tilt angle to form sharp teeth, the existing milling and grinding processing technologies have obvious shortcomings. In terms of milling processing, the principle is to use a special milling machine to allow the milling cutter to operate on the surface of the saw blade according to the preset tooth shape and tilt angle. However, since each tooth needs to be milled one by one, the thicker the saw blade, the more material is removed, resulting in low processing efficiency and a sharp increase in costs during large-scale production. At the same time, the milling cutter is subjected to large forces and wears quickly during milling, which not only affects the tooth shape accuracy and yield rate, but also increases costs and downtime due to frequent tool changes. In addition, the processing stress can easily cause the saw blade to deform in the future, damaging the cutting accuracy and life. Although grinding can use a gear grinder and a special grinding wheel to grind out a precise tooth shape, its efficiency is extremely low. Due to the small amount of grinding, it takes a long time to process thick saw blades, and it is difficult to meet the needs of mass production. In addition, the gear grinder and grinding wheel are expensive, and the grinding wheel needs to be replaced regularly after wear. Different saw blades also need to be adapted to different grinding wheels, which increases costs and complexity. In addition, the gear grinding operation requires extremely high control of the grinding wheel feed rate and speed. The operator needs to have superb skills and rich experience, otherwise it is easy to produce scrap. Precise control also increases the difficulty and time cost of processing. Therefore, the existing milling and gear grinding processing technology has a problem of obviously insufficient processing efficiency in the processing of specific tooth shapes of thick saw blades. Summary of the invention

[0003] In order to overcome the above-mentioned shortcomings, the present invention aims to provide a technical solution that can solve the above-mentioned problems.

[0004] A stamping die for forming a bevel tooth blade by extrusion process, comprising an upper die body and a lower die body that are mutually stamped and matched, a lower saw blade fixing seat is arranged on the lower die body, and an upper saw blade fixing seat and a tooth extrusion punch are arranged on the upper die body, wherein: An elastic compression mechanism is arranged between the upper saw blade fixing seat and the upper die body. After the upper saw blade fixing seat and the lower saw blade fixing seat press the workpiece to be processed, the elastic compression mechanism can be driven to contract, so that the upper saw blade fixing seat contracts to expose the teeth and squeeze out the punching knife to complete the cutting action with the lower saw blade fixing seat; The upper end of the lower saw blade fixing seat protrudes from the lower mold body, and an inclined lower rack extrusion punching surface is arranged on one side of the upper end of the lower saw blade fixing seat, and an inclined upper rack extrusion punching surface is arranged on one side of the tooth extrusion punching knife. The lower rack extrusion punching surface and the upper rack extrusion punching surface are arranged as cutting surfaces for the tooth extrusion punching knife and the lower saw blade fixing seat to complete the cutting action, thereby extruding one side of the workpiece to be processed to form a bevel tooth blade structure.

[0005] Preferably, the upper rack extrusion punching surface has an imprinting surface for imprinting one side of the workpiece to be processed to form a beveled tooth blade structure and an extrusion surface extending along the imprinting surface. The extrusion surface is tightly matched with the lower rack extrusion punching surface, so that the waste extruded from the workpiece to be processed can form a transition section through the tight fit between the extrusion surface and the lower rack extrusion punching surface.

[0006] Preferably, an upper embedding groove is provided on the upper mold body, and a lower embedding groove is provided on the lower mold body. The upper saw blade fixing seat and the tooth extrusion punch are both positioned and installed through the upper embedding groove. The elastic compression mechanism is installed in the upper embedding groove, and the lower saw blade fixing seat is positioned and installed through the lower embedding groove.

[0007] Preferably, both the upper embedding groove and the lower embedding groove are square structures, and an adapter block docked with the lower saw blade fixing seat is arranged in the lower embedding groove, so that the adapter block and the lower saw blade fixing seat are docked to form a square structure embedded in the lower embedding groove, and the distance between the adapter block and the tooth extrusion punch is matched in the mold closing state.

[0008] Preferably, the elastic compression mechanism includes multiple limit rods and a compression spring mounted on each limit rod, one end of the limit rod is fixedly connected to the bottom of the upper embedding groove, the upper saw blade fixing seat is guide-connected to the limit rod, and the upper saw blade fixing seat is limited by the other end of the limit rod, and the compression spring is pressed between the upper saw blade fixing seat and the bottom of the upper embedding groove.

[0009] Preferably, a positioning pin is provided on the lower saw blade fixing seat, a positioning hole matching the positioning pin is opened on the workpiece to be processed, and the workpiece to be processed is positioned and placed on the lower saw blade fixing seat through the cooperation of the positioning hole and the positioning pin.

[0010] Preferably, a guide column is also provided between the upper mold body and the lower mold body for guiding connection, and the upper mold body and the lower mold body are directionally connected via the guide column.

[0011] A stamping method for forming a beveled tooth blade by using an extrusion process, comprising the stamping die for forming a beveled tooth blade by using an extrusion process as described above, comprising the following steps: Step 1, prepare materials, and prepare metal strips of corresponding thickness according to the thickness of the saw blade; Step 2, preliminary punching, setting a corresponding pre-punching die according to the preliminary shape of the saw blade, feeding the metal strip into the pre-punching die through a leveling feeding mechanism, and punching the metal strip into a preliminary saw blade shape, so that the preliminary punched saw blade can have teeth arranged horizontally; Step 3, extrusion punching, placing the initially punched saw blade formed after the initial punching into a punching die that uses an extrusion process to form a beveled tooth edge, and fixing the initially punched saw blade in the die by pressing the lower saw blade fixing seat and the upper saw blade fixing seat, and then further extruding the beveled tooth edge structure on the initially punched saw blade structure through the cooperation of the tooth extrusion punch and the lower saw blade fixing seat; Step 4, demoulding and surface treatment, the saw blade with the beveled tooth edge punched out is taken out from the stamping die of the beveled tooth edge formed by the extrusion process, and after inspection, the saw teeth with the burr surface are deburred and uniformly polished to make a finished saw blade.

[0012] Compared with the prior art, the present invention has the following beneficial effects: By using the extrusion molding method, the saw blade with the bevel tooth blade structure is stamped and extruded through a stamping die. The upper rack extrusion punching surface and the lower rack extrusion punching surface are used to cooperate with each other to form a bevel tooth blade structure on one side of the workpiece to be processed by extruding waste. Compared with the traditional milling and grinding processing technology, the processing efficiency is greatly improved, which is especially suitable for large-scale production needs, and can greatly shorten the processing cycle and improve production capacity; Its structure is cleverly designed. The elastic compression mechanism is used to realize the coordinated action between the upper saw blade fixing seat and the tooth extrusion punch. After the workpiece to be processed is pressed, it can automatically switch to the cutting and extrusion process, effectively improving the degree of production automation, reducing manual intervention links, and reducing labor costs and the risk of operational errors. This stamping and extrusion molding process has unique advantages for saw blades with large thickness and specific tilt angles. It can accurately control the shape and angle of the tooth blades, ensure the consistency and stability of product quality, reduce the scrap rate caused by the processing technology, improve material utilization, and reduce production costs. At the same time, the overall structure of the mold is relatively simple, which reduces the cost of mold manufacturing and maintenance. It has good application prospects and promotion value in industrial production, and helps promote technological innovation and development in the saw blade processing industry.

[0013] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0015] Figure 1 It is a schematic diagram of the explosion structure of the present invention; Figure 2 It is a schematic diagram of the explosion structure after the upper mold body and the lower mold body are removed in the present invention; Figure 3 It is a schematic diagram of the cross-sectional structure of the present invention in a mold closing state; Figure 4 The present invention Figure 3 The structural diagram at A in the middle; Figure 5 The present invention Figure 4 The schematic diagram of the structure for stamping the workpiece to be processed is shown at B in the middle; Figure 6 The present invention Figure 4 Schematic diagram of the structure at B in the figure.

[0016] The reference numerals and names in the figures are as follows: Bevel tooth edge 1, upper mold body 10, upper embedding groove 11, lower mold body 20, lower embedding groove 21, adapter block 22, lower saw blade fixing seat 30, lower rack extrusion punching surface 31, positioning pin 32, upper saw blade fixing seat 40, tooth extrusion punch 50, upper rack extrusion punching surface 51, stamping surface 511, extrusion surface 512, elastic compression mechanism 60, limit rod 61, compression spring 62. DETAILED DESCRIPTION

[0017] The technical solutions in the embodiments of the present invention are described clearly and completely below. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0018] See also Figure 1-6 In an embodiment of the present invention, a stamping die for forming a bevel tooth blade by extrusion process comprises an upper die body 10 and a lower die body 20 which are mutually stamped and matched, a lower saw blade fixing seat 30 is arranged on the lower die body 20, and an upper saw blade fixing seat 40 and a tooth extrusion punch 50 are arranged on the upper die body 10, wherein: An elastic compression mechanism 60 is provided between the upper saw blade fixing seat 40 and the upper die body 10. After the upper saw blade fixing seat 40 and the lower saw blade fixing seat 30 press the workpiece to be processed, the elastic compression mechanism 60 can be driven to contract, so that the upper saw blade fixing seat 40 contracts to expose the teeth and squeeze out the punching knife 50 to complete the cutting action with the lower saw blade fixing seat 30; The upper end of the lower saw blade fixing seat 30 protrudes from the lower mold body 20, and an inclined lower rack extrusion punching surface 31 is provided on one side of the upper end of the lower saw blade fixing seat 30, and an inclined upper rack extrusion punching surface 51 is provided on one side of the tooth extrusion punching knife 50. The lower rack extrusion punching surface 31 and the upper rack extrusion punching surface 51 are set as cutting surfaces for the tooth extrusion punching knife 50 and the lower saw blade fixing seat 30 to complete the cutting action, thereby extruding one side of the workpiece to be processed to form a bevel tooth edge 1 structure.

[0019] In the above technical solution, the saw blade with the structure of the beveled tooth blade 1 is punched and extruded by a stamping die by using an extrusion molding method. The upper rack extrusion punching surface 51 and the lower rack extrusion punching surface 31 cooperate with each other to form the structure of the beveled tooth blade 1 on one side of the workpiece to be processed by extruding waste. Compared with the traditional milling and grinding processing technology, the processing efficiency is greatly improved, which is particularly suitable for large-scale production needs, and can greatly shorten the processing cycle and improve production capacity. Its structural design is ingenious. The elastic compression mechanism 60 realizes the coordinated action of the upper saw blade fixing seat 40 and the tooth extrusion punch 50. After the workpiece to be processed is pressed, it can automatically switch to the cutting and extrusion process, effectively improving the degree of production automation, reducing the manual intervention links, and reducing the labor cost and the risk of operational errors. This stamping and extrusion molding process has unique advantages for saw blades with large thickness and specific tilt angles. It can accurately control the shape and angle of the tooth blades, ensure the consistency and stability of product quality, reduce the scrap rate caused by the processing technology, improve material utilization, and reduce production costs. At the same time, the overall structure of the mold is relatively simple, which reduces the cost of mold manufacturing and maintenance. It has good application prospects and promotion value in industrial production, and helps promote technological innovation and development in the saw blade processing industry.

[0020] See also Figure 5-6The present invention further proposes that the upper rack extrusion punching surface 51 has a stamping surface 511 for stamping one side of the workpiece to be processed to form a bevel tooth blade 1 structure and an extrusion surface 512 extending along the stamping surface 511, and the extrusion surface 512 is tightly matched with the lower rack extrusion punching surface 31, so that the waste extruded from the workpiece to be processed can form a transition section through the tight fit between the extrusion surface 512 and the lower rack extrusion punching surface 31. Through the synergistic effect of the stamping surface 511 and the extrusion surface 512, during the punching process, one side of the workpiece to be processed first presses against the lower end of the tooth extrusion punch 50, and then the extrusion surface 512 acts to initially form a tooth mark on one side of the workpiece to be processed. As the punching operation continues, after the extrusion surface 512 is completely in contact with the workpiece to be processed, the stamping surface 511 immediately acts on one side of the workpiece to be processed, and squeezes one side of the workpiece to be processed to form a structure of a bevel tooth blade 1. In this process, the extrusion surface 512 and the lower rack extrusion punching surface 31 are also completely docked to squeeze out the extruded waste material. During the extrusion and breaking process, the waste material between the extrusion surface 512 and the lower rack extrusion punching surface 31 is used as a transition section, and a part of it can be squeezed into one side of the bevel tooth blade 1, thereby ensuring that there will be no shortage of material on the edge of the bevel tooth blade 1 during the basic process and that its strength can be improved by the extrusion operation, so that the edge of the bevel tooth blade 1 can have better sharpness and strength.

[0021] See also Figure 1-4 The present invention further proposes that an upper embedding groove 11 is provided on the upper mold body 10, a lower embedding groove 21 is provided on the lower mold body 20, the upper saw blade fixing seat 40 and the tooth extrusion punch 50 are both positioned and installed through the upper embedding groove 11, the elastic compression mechanism 60 is installed in the upper embedding groove 11, and the lower saw blade fixing seat 30 is positioned and installed through the lower embedding groove 21. The upper embedding groove 11 and the lower embedding groove 21 are both square structures, and an adapter block 22 is provided in the lower embedding groove 21 to dock with the lower saw blade fixing seat 30, so that the adapter block 22 and the lower saw blade fixing seat 30 form a square structure embedded in the lower embedding groove 21 after docking, and the adapter block 22 and the tooth extrusion punch 50 are spaced in a matching manner in the mold closing state. By respectively providing the upper embedding groove 11 and the lower embedding groove 21 on the upper mold body 10 and the lower mold body 20 to position and install each component, the accuracy and stability of the installation position of each component can be ensured. The upper embedding groove 11 and the lower embedding groove 21 adopt a square structure, and the adapter block 22 in the lower embedding groove 21 is connected with the lower saw blade fixing seat 30. This not only makes the structure more stable after the components are installed, but also the spacing between the adapter block 22 and the tooth extrusion punch 50 in the mold closing state provides precise space guarantee for the stamping and extrusion action, which helps to improve the molding accuracy and quality consistency of the bevel tooth blade 1, and is also convenient for replacing the corresponding lower saw blade fixing seat 30, upper saw blade fixing seat 40 and tooth extrusion punch 50 according to different sizes of bevel tooth blades 1.

[0022] See also Figure 2-4 The present invention further proposes that the elastic compression mechanism 60 includes a plurality of limit rods 61 and a compression spring 62 sleeved on each limit rod 61, one end of the limit rod 61 is fixedly connected to the bottom of the upper embedding groove 11, the upper saw blade fixing seat 40 is guided and connected to the limit rod 61, and the upper saw blade fixing seat 40 is limited by the other end of the limit rod 61, and the compression spring 62 is pressed between the upper saw blade fixing seat 40 and the bottom of the upper embedding groove 11. Through the combination of the plurality of limit rods 61 and the compression spring 62, the upper saw blade fixing seat 40 has a stable and adjustable movement mechanism during the mold closing process. The elastic force provided by the compression spring 62 can effectively buffer the impact force when the upper mold is pressed down, reduce the risk of damage to the mold and the workpiece due to instantaneous impact, and extend the service life of the mold. At the same time, the guiding and limiting effect of the limit rod 61 on the upper saw blade fixing seat 40 ensures the linearity and accuracy of its movement, and ensures that in each stamping process, the upper saw blade fixing seat 40 and the tooth extrusion punch 50 cooperate accurately, further improving the processing accuracy and quality reliability of the bevel tooth edge 1, playing an extremely critical role in the efficient and stable operation of the saw blade stamping die, and effectively promoting the optimization and improvement of the entire saw blade processing technology. See also Figure 2 The present invention further proposes that a positioning pin 32 is provided on the lower saw blade fixing seat 30, and a positioning hole matching the positioning pin 32 is opened on the workpiece to be processed, and the workpiece to be processed is positioned and placed on the lower saw blade fixing seat 30 through the cooperation of the positioning hole and the positioning pin 32. The positioning pin 32 on the lower saw blade fixing seat 30 cooperates with the positioning hole of the workpiece to be processed, and the workpiece to be processed can be accurately positioned in the mold. This can effectively prevent the workpiece from being displaced or offset during the stamping process, ensure that the bevel tooth edge 1 formed by each stamping is accurately positioned and has a consistent shape, greatly improve the dimensional accuracy and quality stability of the product, reduce the scrap rate caused by positioning deviation, and improve production efficiency.

[0023] In addition, a guide column (not shown) is also connected between the upper mold body 10 and the lower mold body 20, and the upper mold body 10 and the lower mold body 20 are directional docked through the guide column. The guide column connected between the upper mold body 10 and the lower mold body 20 provides a precise guide for the opening and closing of the mold. During the mold closing process, the guide column can guide the upper mold body 10 to dock with the lower mold body 20 accurately along the predetermined direction, ensure the matching accuracy between the tooth extrusion punch 50 and the lower saw blade fixing seat 30, and make the stamping action more stable and reliable. At the same time, the guide column can also share part of the lateral force when the mold is opened and closed, reduce the wear of the mold parts due to uneven force, extend the service life of the mold, and reduce the mold maintenance cost, thereby improving the reliability and economy of the entire stamping mold system, and laying a solid foundation for the efficient and high-quality production of saw blades with a bevel tooth edge 1 structure.

[0024] In order to describe in more detail how the present technical solution processes a saw blade, a stamping method for forming a beveled tooth blade 1 by an extrusion process includes the stamping die for forming a beveled tooth blade by an extrusion process as described above, including the following steps: Step 1: Prepare materials. Prepare metal strips of corresponding thickness according to the thickness of the saw blade to lay the foundation for subsequent precise processing, ensure the adaptability of the materials, and reduce processing problems caused by material thickness deviation; Step 2, preliminary punching, setting a corresponding pre-punching die according to the preliminary shape of the saw blade, feeding the metal strip into the pre-punching die through a leveling and feeding mechanism, punching the metal strip into a preliminary saw blade shape, so that the initial punched saw blade can have transversely arranged teeth; through a special pre-punching die and a leveling and feeding mechanism, the metal strip is efficiently punched into a preliminary saw blade shape with transverse teeth, realizing the rapid construction of the basic form of the saw blade, and providing a positioning and structural basis for the subsequent processing of the bevel tooth edge 1; Step 3, extrusion punching, the initial punched saw blade formed after the initial punching is placed in a punching die for forming the beveled tooth edge 1 by an extrusion process, and the initial punch is fixed in the die by pressing the lower saw blade fixing seat 30 and the upper saw blade fixing seat 40, and then the beveled tooth edge 1 structure is further extruded on the initial punched saw blade structure by the cooperation of the tooth extrusion punch 50 and the lower saw blade fixing seat 30. Compared with the traditional processing technology, this extrusion molding method can not only effectively process saw blades with larger thickness, but also efficiently manufacture sharp tooth edges with specific inclination angles, greatly improving the processing accuracy and the stability of product quality; Step 4, demoulding and surface treatment, the saw blade with the bevel tooth edge 1 punched out is taken out from the stamping die that forms the bevel tooth edge 1 by the extrusion process, and after inspection, the saw teeth with the burr surface are deburred and uniformly polished to make a finished saw blade; it can realize efficient and high-precision production from raw materials to finished saw blades, and has high application value and promotion potential in the field of saw blade manufacturing.

[0025] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be considered exemplary and non-restrictive in all respects, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention.

Claims

1. A stamping die for forming a bevel tooth edge by an extrusion process, comprising an upper die body (10) and a lower die body (20) that are mutually stamped and matched, characterized in that: A lower saw blade fixing seat (30) is arranged on the lower die body (20), and an upper saw blade fixing seat (40) and a tooth extrusion punch (50) are arranged on the upper die body (10), wherein: An elastic compression mechanism (60) is provided between the upper saw blade fixing seat (40) and the upper die body (10); after the upper saw blade fixing seat (40) and the lower saw blade fixing seat (30) compress the workpiece to be processed, the elastic compression mechanism (60) can be driven to contract, so that the upper saw blade fixing seat (40) contracts, thereby exposing the teeth to extrude the punching knife (50) and complete the cutting action with the lower saw blade fixing seat (30); The upper end of the lower saw blade fixing seat (30) protrudes from the lower die body (20); one side of the upper end of the lower saw blade fixing seat (30) is provided with an inclined lower rack extrusion punching surface (31); one side of the tooth extrusion punching knife (50) is provided with an inclined upper rack extrusion punching surface (51); the lower rack extrusion punching surface (31) and the upper rack extrusion punching surface (51) are provided as cutting surfaces for the tooth extrusion punching knife (50) and the lower saw blade fixing seat (30) to complete the cutting action, thereby extruding one side of the workpiece to be processed to form a bevel tooth edge (1) structure.

2. A stamping die for forming a bevel tooth edge by extrusion process according to claim 1, characterized in that: The upper rack extrusion punching surface (51) comprises a stamping surface (511) for stamping one side of a workpiece to be processed to form a beveled tooth blade (1) structure, and an extrusion surface (512) extending along the stamping surface (511); the extrusion surface (512) is tightly matched with the lower rack extrusion punching surface (31), so that waste material extruded from the workpiece to be processed can form a transition section through the tight match between the extrusion surface (512) and the lower rack extrusion punching surface (31).

3. The stamping die for forming a bevel tooth edge by extrusion process according to claim 1, characterized in that: An upper embedding groove (11) is formed on the upper mold body (10), and a lower embedding groove (21) is formed on the lower mold body (20). The upper saw blade fixing seat (40) and the tooth extrusion punch (50) are both positioned and installed through the upper embedding groove (11). The elastic compression mechanism (60) is installed in the upper embedding groove (11), and the lower saw blade fixing seat (30) is positioned and installed through the lower embedding groove (21).

4. A stamping die for forming a bevel tooth edge by extrusion process according to claim 3, characterized in that: The upper embedding groove (11) and the lower embedding groove (21) are both square structures, and an adapter block (22) is arranged in the lower embedding groove (21) and is connected to the lower saw blade fixing seat (30), so that the adapter block (22) and the lower saw blade fixing seat (30) are connected to form a square structure embedded in the lower embedding groove (21), and the adapter block (22) and the tooth extrusion punch (50) are spaced in a matching manner in the mold closing state.

5. The stamping die for forming a bevel tooth edge by extrusion process according to claim 3, characterized in that: The elastic compression mechanism (60) comprises a plurality of limiting rods (61) and a compression spring (62) sleeved on each limiting rod (61), one end of the limiting rod (61) is fixedly connected to the bottom of the upper embedding groove (11), the upper saw blade fixing seat (40) is guided and connected to the limiting rod (61), and the upper saw blade fixing seat (40) is limited by the other end of the limiting rod (61), and the compression spring (62) is pressed between the upper saw blade fixing seat (40) and the bottom of the upper embedding groove (11).

6. The stamping die for forming a bevel tooth edge by extrusion process according to claim 1, characterized in that: A positioning pin (32) is provided on the lower saw blade fixing seat (30), a positioning hole matching the positioning pin (32) is provided on the workpiece to be processed, and the workpiece to be processed is positioned and placed on the lower saw blade fixing seat (30) through the cooperation of the positioning hole and the positioning pin (32).

7. The stamping die for forming a bevel tooth edge by extrusion process according to claim 1, characterized in that: A guide column is also provided between the upper die body (10) and the lower die body (20) for guiding connection, and the upper die body (10) and the lower die body (20) are directional-butted via the guide column.

8. A stamping method for forming a beveled tooth blade (1) by using an extrusion process, comprising a stamping die for forming a beveled tooth blade by using an extrusion process as claimed in any one of claims 1 to 7, characterized in that: The steps include: Step 1, prepare materials, and prepare metal strips of corresponding thickness according to the thickness of the saw blade; Step 2, preliminary punching, setting a corresponding pre-punching die according to the preliminary shape of the saw blade, feeding the metal strip into the pre-punching die through a leveling feeding mechanism, and punching the metal strip into a preliminary saw blade shape, so that the preliminary punched saw blade can have teeth arranged horizontally; Step 3, extrusion punching, placing the initially punched saw blade formed after the initial punching into a punching die for forming a beveled tooth blade (1) by an extrusion process, fixing the initially punched saw blade in the die by pressing the lower saw blade fixing seat (30) and the upper saw blade fixing seat (40), and then further extruding the beveled tooth blade (1) structure on the initially punched saw blade structure by the cooperation of the tooth extrusion punch (50) and the lower saw blade fixing seat (30); Step 4, demoulding and surface treatment, the saw blade with the beveled tooth edge (1) punched out is taken out from the stamping die that forms the beveled tooth edge (1) by the extrusion process, and after inspection, the saw teeth with the burr surface are deburred and uniformly polished to produce a finished saw blade.

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