A stamping die for forming an inclined tooth blade by using an extrusion process and a stamping method thereof

Abstract

The present invention relates to the field of stamping die technology, and in particular to a stamping die for forming a beveled tooth blade using an extrusion process and a stamping method thereof, comprising an upper die body and a lower die body that are mutually stamped and matched, a lower saw blade fixing seat being provided on the lower die body, an upper saw blade fixing seat and a tooth extrusion punch being provided on the upper die body, wherein: an elastic compression mechanism is provided between the upper saw blade fixing seat and the upper die body, and the upper saw blade fixing seat and the lower saw blade fixing seat can drive the elastic compression mechanism to contract after pressing the workpiece to be processed, so that the upper saw blade fixing seat contracts to expose the tooth extrusion punch to complete the cutting action with the lower saw blade fixing seat; by utilizing the extrusion molding method, the saw blade for processing the beveled tooth blade structure is stamped and extruded through the stamping die, and the mutual cooperation of the upper rack extrusion punching surface and the lower rack extrusion punching surface is utilized to form a beveled tooth blade structure on one side of the workpiece to be processed by extruding waste.

Description

Technical Field

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

[0002] In the field of saw blade processing, especially for thicker saw blades that require specific bevel angles to achieve sharp teeth, existing milling and grinding technologies have significant shortcomings. Milling relies on specialized milling machines, where a milling cutter operates on the blade surface according to a pre-set tooth profile and bevel angle. However, because each tooth must be milled individually, thicker saw blades require a large amount of material removal, resulting in low processing efficiency and significantly increased costs for large-scale production. Furthermore, milling subjects the cutter to high forces and rapid wear, affecting not only tooth profile accuracy and yield, but also frequent tool changes, increasing costs and downtime. Furthermore, processing stress can easily cause subsequent deformation of the saw blade, compromising cutting accuracy and lifespan. While grinding can produce precise tooth profiles using a gear grinder and specialized grinding wheels, its efficiency is extremely low. Due to the small amount of grinding required, processing thick saw blades is time-consuming and difficult to meet mass production requirements. Furthermore, the grinding machines and grinding wheels are expensive, requiring regular replacement of worn grinding wheels, and requiring different grinding wheels for different saw blades, adding cost and complexity. Furthermore, gear grinding requires extremely high control over the grinding wheel feed rate and speed, requiring operators to possess exceptional skills and extensive experience. Otherwise, scrap is likely to occur. This precise control also increases the difficulty and time cost of the process. Consequently, existing milling and gear grinding technologies suffer from significant inefficiencies when processing the specific tooth profiles 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 an inclined tooth blade by an extrusion process comprises an upper die body and a lower die body that are mutually pressed together, a lower saw blade fixing seat is provided on the lower die body, and an upper saw blade fixing seat and a tooth extrusion punch are provided on the upper die body, wherein:

[0005] An elastic compression mechanism is provided 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, causing the upper saw blade fixing seat to contract, thereby exposing the teeth and squeezing out the punch to complete the cutting action with the lower saw blade fixing seat;

[0006] 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 provided on one side of the upper end of the lower saw blade fixing seat, and an inclined upper rack extrusion punching surface is provided on one side of the tooth extrusion punching knife. The lower rack extrusion punching surface and the upper rack extrusion punching surface are set 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 beveled tooth edge structure.

[0007] 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.

[0008] 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.

[0009] Preferably, the upper embedding groove and the lower embedding groove are both square structures, and an adapter block is provided in the lower embedding groove to connect to the lower saw blade fixing seat, so that the adapter block and the lower saw blade fixing seat are connected 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.

[0010] Preferably, the elastic compression mechanism includes multiple limit rods and a compression spring sleeved on each limit rod, one end of the limit rod is fixedly connected to the bottom of the upper inlay groove, the upper saw blade fixing seat is guided and connected to the limit rod, and the upper saw blade fixing seat is restricted 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 inlay groove.

[0011] Preferably, a positioning pin is provided on the lower saw blade fixing seat, and a positioning hole matching the positioning pin is opened on the workpiece to be processed. 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.

[0012] Preferably, a guide column is further provided between the upper mold body and the lower mold body, and the upper mold body and the lower mold body are directionally connected via the guide column.

[0013] A stamping method for forming a beveled tooth blade using an extrusion process, comprising the above-mentioned stamping die for forming a beveled tooth blade using an extrusion process, comprising the following steps:

[0014] Step 1: Prepare the material and prepare the metal strip of corresponding thickness according to the thickness of the saw blade;

[0015] Step 2, preliminary stamping: according to the preliminary shape of the saw blade, a corresponding pre-stamping die is set, and the metal strip is fed into the pre-stamping die through a leveling and feeding mechanism, and the metal strip is stamped into the preliminary saw blade shape, so that the pre-stamped saw blade can have horizontally arranged teeth;

[0016] Step 3: extrusion punching. The pre-punched saw blade formed after the preliminary punching is placed into a punching die that uses an extrusion process to form a beveled tooth edge. The pre-punched saw blade is fixed in the die by pressing the lower saw blade fixing seat and the upper saw blade fixing seat. Then, the beveled tooth edge structure is further extruded on the pre-punched saw blade structure by the cooperation of the tooth extrusion punch and the lower saw blade fixing seat.

[0017] 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. After inspection, the saw teeth with the burr surface are deburred and uniformly polished to make the finished saw blade.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] By using extrusion molding, the saw blade with a beveled tooth blade structure is stamped and extruded through a stamping die. The upper rack extrusion punching surface and the lower rack extrusion punching surface cooperate with each other to form a beveled tooth blade structure on one side of the workpiece to be processed by extruding waste. Compared with traditional milling and grinding processing technology, it greatly improves processing efficiency, is particularly suitable for large-scale production needs, can significantly shorten the processing cycle, and increase production capacity;

[0020] Its structural design is ingenious. The elastic compression mechanism realizes the coordinated action of 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.

[0021] This stamping and extrusion process offers unique advantages for producing thick saw blades that require specific blade angles. It precisely controls the shape and angle of the blades, ensuring consistent and stable product quality, reducing scrap rates due to processing, improving material utilization, and lowering production costs. Furthermore, the mold's relatively simple overall structure reduces mold manufacturing and maintenance costs, offering promising application prospects and promotional value in industrial production, helping to drive technological innovation and development in the saw blade processing industry.

[0022] Additional aspects and advantages of the present invention will be set forth in part in the description which follows and, in part, will be obvious from the description which follows, or may be learned by practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. 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 any creative work.

[0024] Figure 1 It is a schematic diagram of the explosion structure of the present invention;

[0025] Figure 2 This is a schematic diagram of the exploded structure of the present invention after removing the upper mold body and the lower mold body;

[0026] Figure 3 It is a schematic diagram of the cross-sectional structure of the present invention in the mold closing state;

[0027] Figure 4 This invention Figure 3 Schematic diagram of the structure at A in the middle;

[0028] Figure 5 This invention Figure 4 The schematic diagram of the structure for stamping the workpiece at B in the middle;

[0029] Figure 6 This invention Figure 4 Schematic diagram of the structure at point B.

[0030] The reference numerals and names in the figures are as follows:

[0031] Beveled tooth edge 1, upper mold body 10, upper inlay groove 11, lower mold body 20, lower inlay 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

[0032] The following is a clear and complete description of the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of the present invention.

[0033] See also Figure 1-6In an embodiment of the present invention, a stamping die for forming a beveled tooth blade by an extrusion process includes an upper die body 10 and a lower die body 20 that are mutually pressed together. A lower saw blade fixing seat 30 is provided on the lower die body 20, and an upper saw blade fixing seat 40 and a tooth extrusion punch 50 are provided on the upper die body 10, wherein:

[0034] 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, causing the upper saw blade fixing seat 40 to contract, thereby exposing the teeth of the punching cutter 50 to complete the cutting action with the lower saw blade fixing seat 30;

[0035] The upper end of the lower saw blade fixing seat 30 protrudes from the lower mold body 20, and 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, and 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 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.

[0036] In the above technical solution, the saw blade with the beveled tooth edge 1 structure is extruded and formed through 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 beveled tooth edge 1 structure on one side of the workpiece to be processed by extruding waste. Compared with traditional milling and grinding processing technology, the processing efficiency is greatly improved, which is particularly suitable for large-scale production needs, can significantly shorten the processing cycle, and improve production capacity.

[0037] 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 manual intervention links, and reducing labor costs and the risk of operational errors.

[0038] This stamping and extrusion process offers unique advantages for producing thick saw blades that require specific blade angles. It precisely controls the shape and angle of the blades, ensuring consistent and stable product quality, reducing scrap rates due to processing, improving material utilization, and lowering production costs. Furthermore, the mold's relatively simple overall structure reduces mold manufacturing and maintenance costs, offering promising application prospects and promotional value in industrial production, helping to drive technological innovation and development in the saw blade processing industry.

[0039] 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. 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 coordinated action 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, through the action of the extrusion surface 512, a tooth mark is initially formed 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, squeezing one side of the workpiece to be processed to form the structure of the bevel tooth blade 1, and in this process, the extrusion surface 512 and the lower rack extrusion punching surface 31 are also completely docked, squeezing 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 material shortage 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.

[0040] See also Figure 1-4 The present invention further proposes that an upper embedding groove 11 is provided on the upper mold body 10, and 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. After the adapter block 22 and the lower saw blade fixing seat 30 are docked, a square structure is formed that is embedded in the lower embedding groove 21. In the mold closing state, the distance between the adapter block 22 and the tooth extrusion punch 50 is matched. By providing the upper embedding groove 11 and the lower embedding groove 21 in the upper mold body 10 and the lower mold body 20 respectively to position and install each component, the accuracy and stability of the installation position of each component can be ensured. The upper inlay groove 11 and the lower inlay groove 21 adopt a square structure, and the adapter block 22 in the lower inlay groove 21 is docked with the lower saw blade fixing seat 30, which 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 also facilitates the replacement of 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.

[0041] 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 mounted 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. The upper saw blade fixing seat 40 is limited by the other end of the limit rod 61. The compression spring 62 is pressed tightly between the upper saw blade fixing seat 40 and the bottom of the upper embedding groove 11. Through the combination of multiple 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 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, ensuring 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.

[0042] 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 that matches the positioning pin 32 is opened on the workpiece to be processed. 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, thereby achieving precise positioning of the workpiece to be processed in the mold. This can effectively prevent the workpiece from being displaced or offset during the stamping process, ensuring that the beveled tooth edge 1 formed by each stamping is accurately positioned and consistent in shape, greatly improving the dimensional accuracy and quality stability of the product, reducing the scrap rate caused by positioning deviation, and improving production efficiency.

[0043] In addition, a guide column (not shown) is 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 guiding function 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, ensuring the matching accuracy between the tooth extrusion punch 50 and the lower saw blade fixing seat 30, making 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, 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.

[0044] In order to describe in more detail how the present technical solution processes a saw blade, a stamping method for forming a beveled tooth edge 1 by an extrusion process, including the above-mentioned stamping die for forming a beveled tooth edge by an extrusion process, comprises the following steps:

[0045] Step 1: Prepare the material. Prepare the metal strip of corresponding thickness according to the thickness of the saw blade to lay the foundation for subsequent precise processing, ensure the adaptability of the material, and reduce processing problems caused by material thickness deviation;

[0046] Step 2, preliminary stamping, setting a corresponding pre-stamping die according to the preliminary shape of the saw blade, feeding the metal strip into the pre-stamping die through a leveling and feeding mechanism, and stamping the metal strip into a preliminary saw blade shape, so that the preliminary stamped saw blade can have horizontally arranged teeth; through a special pre-stamping die and a leveling and feeding mechanism, the metal strip is efficiently stamped into a preliminary saw blade shape with horizontal teeth, realizing the rapid construction of the basic shape of the saw blade, and providing a positioning and structural foundation for the subsequent processing of the bevel tooth edge 1;

[0047] Step 3, extrusion punching, the preliminary punched saw blade formed after the preliminary punching is placed into a punching die for forming the beveled tooth edge 1 by the extrusion process, and the preliminary 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 preliminary 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 thicknesses, but also efficiently manufacture sharp tooth edges with specific inclination angles, greatly improving the processing accuracy and stability of product quality;

[0048] Step 4: demoulding and surface treatment, the saw blade with the bevel tooth edge 1 punched out is taken out from the stamping die of the bevel tooth edge 1 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; 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.

[0049] 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 invention can be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations that come within the meaning and range of equivalents of the claims be embraced therein.

Claims

1. A stamping die for forming a bevel tooth blade 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 provided on the lower die body (20), and an upper saw blade fixing seat (40) and a tooth extrusion punch (50) are provided 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, causing the upper saw blade fixing seat (40) to contract, thereby exposing the teeth and squeezing 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 die 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; The upper rack extrusion punching surface (51) comprises an imprinting surface (511) for imprinting one side of a workpiece to be processed to form a beveled tooth blade (1) structure, and an extrusion surface (512) extending along the imprinting 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 fit between the extrusion surface (512) and the lower rack extrusion punching surface (31).

2. A stamping die for forming an inclined tooth blade by an extrusion process according to claim 1, characterized in that: An upper embedding groove (11) is provided on the upper mold body (10), and 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).

3. A stamping die for forming an inclined tooth blade by an extrusion process according to claim 2, characterized in that: 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) and docked with the lower saw blade fixing seat (30), so that the adapter block (22) and the lower saw blade fixing seat (30) are docked to form a square structure embedded in the lower embedding groove (21), and in the mold closing state, the adapter block (22) and the tooth extrusion punch (50) are spaced in a coordinated manner.

4. The stamping die for forming an inclined tooth blade by an extrusion process according to claim 2, characterized in that: The elastic compression mechanism (60) includes 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).

5. The stamping die for forming beveled tooth blades 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 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).

6. The stamping die for forming beveled tooth blades 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), and the upper die body (10) and the lower die body (20) are directional-jointed via the guide column.

7. 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 according to any one of claims 1 to 6, characterized in that: The steps include: Step 1: Prepare the material and prepare the metal strip of corresponding thickness according to the thickness of the saw blade; Step 2, preliminary stamping: according to the preliminary shape of the saw blade, a corresponding pre-stamping die is set, and the metal strip is fed into the pre-stamping die through a leveling and feeding mechanism, and the metal strip is stamped into the preliminary saw blade shape, so that the pre-stamped saw blade can have horizontally arranged teeth; Step 3, extrusion punching, placing the pre-punched saw blade formed after the pre-punching into a punching die for forming a beveled tooth edge (1) by an extrusion process, fixing the pre-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 edge (1) structure on the pre-punched saw blade structure by cooperating with 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 for forming 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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