Machining process of cutting jig

Abstract

The invention relates to the field of cutting jigs, in particular to a machining process of a cutting jig, which comprises the following steps of: 1, cutting a plate into a plurality of die holders by using a fine carving machine; secondly, the shape of a mold core is machined on the surface of the mold base through a fine carving machine, and meanwhile an inner groove is machined in the mold core through the fine carving machine; thirdly, laser equipment is used for conducting finish machining on the mold core and the inner groove; and 4, measuring whether the size of the die core reaches the die cutting required depth or not by using a high-precision measuring instrument. The machining precision of the cutting jig is improved, the product quality stability is guaranteed, and the machining efficiency is improved.

Description

Technical Field

[0001] This application relates to the field of cutting fixtures, and in particular to a processing technology for a cutting fixture. Background Technology

[0002] Currently, cutting tools are tools used for cutting processes in mechanical manufacturing, also known as cutting fixtures. The vast majority of cutting tools are machine-made, but some are hand-operated. Since cutting tools used in mechanical manufacturing are primarily used for cutting metal materials, the term "cutting tool" generally includes flat cutters and round cutters.

[0003] A reflective material cutting fixture is disclosed in the related technology, including a mold base and a mold base blade. The mold base blade includes a blade base and a blade edge. The blade base is fixed on the mold base, and the blade edge is fixed on the blade base. The process of processing the above-mentioned cutting fixture includes the following steps: Step 1: Cut the steel plate to the required size according to the drawing; Step 2: Cut out positioning holes, and use the positioning holes to position the lines between the lines in the drawing with an interval of less than 0.7 mm and greater than 0.3 mm, and use wire cutting technology to hollow them out. Step 3: Use a precision engraving machine to engrave the blade base and blade edge on the mold base. The angle between the side wall of the blade base (3) and the mold base (1) is 50-60 degrees; use a precision engraving machine to finish the blade edge so that the angle of the top of the blade edge section is 28 degrees.

[0004] The aforementioned processing techniques have the following drawbacks: For traditional auxiliary material label cutting of lines smaller than 0.7mm, the industry typically uses CO2 laser cutting. While CO2 laser cutting achieves fine line cutting to a certain extent, when processing materials thicker than 0.1mm or containing special color powders (such as those containing color paste, glass beads, iridescent, photochromic, thermochromic, or magnetochromic powders), the high-temperature oxidation of the laser causes the micro-metals within the color powder to oxidize, resulting in blackened edges and failing to meet production requirements. When dealing with textured materials requiring fine line cutting of less than 0.7mm, the industry uses laser cutting. However, the oil generated by the laser seeps into the texture gaps, causing discoloration and oily fumes after cutting, failing to meet production requirements and necessitating time-consuming and labor-intensive cleaning, thus wasting costs. Summary of the Invention

[0005] In order to overcome the problems in the existing reflective material cutting fixture processing technology, such as the tendency of carbon dioxide laser cutting to blacken the cutting edge when processing certain materials, the need for additional cleaning due to oil stains seeping into the product and causing discoloration, the limitations of wire cutting technology for cutting fine lines of specific shapes, and the high difficulty, high cost, severe tool wear and short life of processing high-hardness and special materials, this application provides a processing technology for a cutting fixture.

[0006] The processing technology for a cutting fixture provided in this application adopts the following technical solution: A processing technology for a cutting fixture includes the following steps: Step 1: Use a CNC engraving machine to cut the sheet material into multiple mold bases; Step 2: Use a CNC engraving machine to machine the shape of the mold core on the surface of the mold base, and at the same time use the CNC engraving machine to machine the inner groove on the mold core; Step 3: Use laser equipment to perform precision machining on the mold core and the inner groove; Step 4: Use a high-precision measuring instrument to measure whether the die core size has reached the required cutting depth.

[0007] By adopting the above technical solution, the sheet metal is first cut into multiple mold bases using a precision engraving machine, providing a foundation for subsequent processing. Then, the precision engraving machine processes the mold core shape and inner groove on the surface of the mold base, and also processes the outer blade shape, initially forming the basic structure of the cutting fixture. Next, laser equipment is used to precision process the mold core. This allows for precise control of the cutting edge quality, effectively avoiding the problems of blackening edges and oil stains causing product discoloration when traditionally cutting certain materials with CO2 lasers. It also overcomes the limitations of wire cutting for cutting fine lines of specific shapes. Finally, a high-precision measuring instrument is used to measure the mold core dimensions, thereby screening out good and defective products to ensure product quality. Ultimately, this process not only achieves the required cutting depth but also significantly reduces the processing difficulty and cost of high-hardness and special materials, reduces tool wear, extends tool life, and overall improves the processing efficiency of the cutting fixture and product quality.

[0008] Optionally, step two specifically includes the following steps: A1: Fix the mold base onto the engraving machine; A2: Start the engraving machine and use it to process the basic shape of the mold core on the surface of the mold base, while simultaneously processing the outer edge on the outer wall of the mold core; A3: The movement of the milling cutter is controlled by a precision engraving machine to process an inner groove on the surface of the mold core. At the same time, an inner cutting edge is formed on the inner sidewall of the inner groove. At this time, the bottom of the inner groove is an uneven surface, and the included angle between the inner cutting edge and the bottom of the inner groove is a rounded corner.

[0009] By adopting the above technical solution, the mold base is first fixed on the CNC engraving machine. The CNC engraving machine is then started to process the basic shape of the mold core and form an outer cutting edge on the outer wall of the mold core. Subsequently, the CNC engraving machine controls the movement of the milling cutter to process an inner groove on the surface of the mold core. At this time, the bottom of the inner groove is uneven and the angle between the inner wall and the bottom is rounded. Utilizing the precision processing characteristics of the CNC engraving machine, the size and shape of the outer cutting edge, mold core, and inner groove can be precisely controlled, laying a good foundation for subsequent processing and effectively improving the overall processing accuracy of the cutting fixture. At the same time, this method of initially processing the inner groove shape with the CNC engraving machine provides convenience for subsequent laser finishing operations. It helps to overcome problems such as edge blackening and product discoloration when traditional CO2 laser cutting special materials, and the limitation of wire cutting for specific shapes and fine lines. It can also reduce the processing difficulty and cost of high-hardness and special materials, reduce tool wear, and extend tool life.

[0010] Optionally, the Rockwell hardness of the steel plate is 60 HRC or higher.

[0011] By adopting the above technical solution, and using steel plates with a Rockwell hardness of 60 HRC or higher as raw materials, the high hardness of the steel plates effectively addresses the strength requirements of the mold base during the cutting of reflective materials. This ensures the structural stability of the mold core and inner groove during precision engraving and subsequent laser drilling, preventing deformation or damage due to insufficient material hardness. It also overcomes the problems of high processing difficulty, high cost, and severe tool wear associated with traditional high-hardness materials, thereby extending the overall service life of the cutting fixture and improving processing efficiency and product quality.

[0012] Optionally, step three specifically includes the following steps: B1: Fix the mold base with the molded core onto the worktable of the laser processing equipment; B2: Use laser processing equipment to perform fine processing on the outer wall of the mold core and the inner wall of the inner groove, process the uneven surface at the bottom of the inner groove into a flat surface, and process the rounded corners inside the inner groove into obtuse angles.

[0013] By adopting the above technical solution, the mold base with the formed mold core is fixed on the worktable of the laser processing equipment, and the outer wall of the mold core and the inner wall of the inner groove are precision machined using the laser processing equipment. The uneven surface at the bottom of the inner groove is machined into a flat surface, and the rounded corners inside the inner groove are machined into obtuse angles. On the one hand, the high precision characteristics of the laser are used to eliminate the surface defects left by the precision engraving machine, so that the inner groove meets the flatness and angle requirements of the die-cutting process, thereby solving the problems of edge blackening and oil stains seeping in when traditional laser cutting special materials. On the other hand, by optimizing the geometry of the inner groove and matching it with a 15° mold core, the cutting stability of fine lines below 0.7mm is significantly improved, overcoming the processing limitations of wire cutting technology for specific shapes, and ultimately achieving a comprehensive improvement in cutting quality, processing efficiency and mold base life.

[0014] Optionally, the angle between the plane containing the outer blade and the vertical plane is 10°-20°.

[0015] By adopting the above technical solution, the angle between the plane containing the outer blade and the vertical plane is set to 10°-20°. On the one hand, this ensures the sharpness of the die core, allowing it to efficiently cut into metal materials during cutting operations. On the other hand, this angle range effectively optimizes the stress state of the die core when cutting metal materials, preventing the die core from easily getting stuck or chipping during cutting, thus significantly extending the die core's service life and improving the overall performance and economic efficiency of the cutting fixture.

[0016] Optionally, the angle between the plane containing the inner blade and the vertical plane is 8°-10°.

[0017] By adopting the above technical solution, the angle between the plane containing the inner cutting edge and the vertical plane is set to 8°-10°. This angle range ensures that the inner cutting edge has sufficient sharpness to effectively cut into the material, while also optimizing the stress distribution of the inner cutting edge during the cutting process. This allows the inner cutting edge to better disperse stress during cutting operations, reducing wear and damage caused by excessive local stress, thereby reducing the probability of problems such as blade breakage and chipping, effectively extending the service life of the inner cutting edge, improving the stability and reliability of the cutting fixture during processing, and improving the overall performance and processing quality of the cutting fixture.

[0018] Optionally, the laser power is 30W-70W.

[0019] By adopting the above technical solution, and setting the laser power to 30W-70W, it is possible to accurately match the cutting requirements of different thicknesses (especially those above 0.1mm) and special materials (such as those containing color paste, glass beads, etc.), avoiding the problems of material overheating and blackening due to high power or incomplete cutting due to low power. On the other hand, this power range, together with the 15° mold core and the obtuse-angled inner groove, creates a synergistic effect, ensuring the flatness of the cutting edge while significantly reducing the thermal damage of the laser to the mold base, thereby extending the service life of the mold base and solving the technical problem of unstable cutting quality of fine lines in traditional processes.

[0020] Optionally, the laser processing equipment may scan the same location at least 400 times.

[0021] By adopting the above technical solution, and by setting the laser processing equipment to scan the same position at least 400 times, the laser's multiple progressive ablation action ensures that the depth of the inner groove accurately meets the precision requirements of the fixture (1.5 times higher than the material being cut). At the same time, continuous energy input makes the cut surface smoother and flatter, completely eliminating the edge blackening and heat-affected zone problems caused by single high-energy impact in traditional laser cutting. Combined with 30W-70W power control and path matching technology, high-quality cutting of fine lines (below 0.7mm) of high-hardness special materials is finally achieved.

[0022] Optionally, the specific measurement steps in step four are as follows: A: Use a high-precision depth measuring instrument to measure the depth of the inner groove. The depth of the inner groove must be more than 1.5 times the height of the cut material. B: If the depth is OK, remove the mold base and cut it.

[0023] By adopting the above technical solution, the depth of the inner groove is strictly tested using a high-precision depth measuring instrument (requiring a depth greater than 1.5 times the height of the material to be cut), and the mold is immediately removed and put into use for cutting after passing the test. On the one hand, this ensures that the cutting depth of the mold base is accurately matched with the material characteristics, avoiding incomplete cutting or excessive burning due to insufficient depth. On the other hand, by combining the quantitative standard (1.5 times the material thickness) with the real-time testing process, the problem of unstable product quality caused by depth error in traditional processes is effectively solved. At the same time, with the laser progressive scanning process, the zero blackening and zero deformation effect of fine line cutting of high-hardness special materials is finally achieved.

[0024] Optionally, in step four, when the high-precision measuring instrument measures the mold core size, multiple key measurement points are selected for measurement, and the mold core size is judged as qualified based on the measurement results of multiple measurement points.

[0025] By adopting the above technical solution, and by using a high-precision measuring instrument to select multiple key measurement points of the mold core for comprehensive testing in step four, the dimensional accuracy of each part of the mold core (such as the 15° cutting edge angle and overall contour) can be comprehensively and accurately evaluated by using multi-point measurement data cross-verification. This effectively avoids local errors or blind spots that may occur in single-point measurement, thereby ensuring that the mold core dimensions strictly meet the standards, providing a reliable guarantee for subsequent collaborative cutting with the inner groove, and ultimately significantly improving the process stability and product qualification rate of fine line cutting of high-hardness special materials.

[0026] In summary, this application includes at least one of the following beneficial technical effects: 1. By combining preliminary processing with laser finishing, the size and shape of the mold core and inner groove are precisely controlled. The high precision of the laser eliminates residual surface defects from the precision engraving machine, ensuring that the inner groove meets the flatness and angle requirements. This avoids the problems of blackening at the edges and oil stains causing product discoloration when traditional CO2 laser cutting is used to process special materials. At the same time, it overcomes the limitations of wire cutting technology for cutting fine lines of specific shapes, thus improving the cutting quality. 2. Using steel plates with a Rockwell hardness of 60 HRC or higher as raw materials ensures the structural stability of the mold core and inner groove during processing, overcoming the problems of high processing difficulty, high cost, and severe tool wear in traditional processes for high-hardness materials; by optimizing the process, such as the geometry of the 15° mold core and obtuse-angle inner groove, laser power, and number of repeated scans, the processing difficulty of high-hardness materials is reduced, tool wear is reduced, tool and mold base life is extended, and the overall processing cost is reduced; 3. The dimensions of the mold core are strictly measured by a high-precision measuring instrument, and multiple key measurement points are selected for comprehensive testing to fully and accurately evaluate the dimensional accuracy of each part of the mold core, effectively separating good and defective products; at the same time, a quantitative standard for the depth of the inner groove and an instant detection process are set to ensure that the cutting depth of the mold base is accurately matched with the material characteristics, avoiding product quality instability caused by depth errors, and ultimately significantly improving the processing efficiency of the cutting fixture and the product qualification rate. Attached Figure Description

[0027] Figure 1 This is a schematic flowchart of the processing technology of the cutting fixture in the embodiments of this application.

[0028] Figure 2 This is a schematic diagram of the cutting fixture in the embodiments of this application.

[0029] Figure 3 This is a cross-sectional view of the cutting fixture in the embodiments of this application.

[0030] Figure 4 This is a cross-sectional view of the cutting fixture after finishing in the embodiments of this application.

[0031] Explanation of reference numerals in the attached figures: 1. Mold base; 2. Mold core; 21. Outer cutting edge; 22. Inner cutting edge; 3. Inner groove; 4. Rounded corner; 5. Obtuse angle. Detailed Implementation

[0032] The following is in conjunction with the appendix Figure 1-4 This application will be described in further detail.

[0033] The terminology used in this application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. Unless otherwise defined, the technical or scientific terms used in this application should have the ordinary meaning understood by one of ordinary skill in the art to which this application pertains. The terms "first," "second," and similar terms used in this application do not indicate any order, quantity, or importance, but are merely used to distinguish different components.

[0034] This application discloses a processing technology for a cutting fixture. (Refer to...) Figure 1 , Figure 2 Figure 3 and Figure 4 The processing technology of the cutting fixture includes the following steps: Step 1: Use a CNC engraving machine to cut the sheet material into multiple mold bases. The specific implementation method is as follows: Select a steel plate that meets the requirements, with a Rockwell hardness of 60 HRC or higher. Use a high-precision feeding mechanism to smoothly transport the steel plate to the CNC engraving machine's worktable. The CNC engraving machine cuts the steel plate into multiple mold bases that meet the size requirements using a high-speed rotating milling cutter according to a preset program. Using a steel plate with a Rockwell hardness of 60 HRC or higher as the raw material, its high hardness effectively meets the strength requirements of the mold base during the cutting of reflective materials. This ensures the structural stability of the mold core and inner groove during CNC engraving and subsequent laser depth drilling, avoiding deformation or damage due to insufficient material hardness. It also overcomes the problems of high processing difficulty, high cost, and severe tool wear in traditional processes for high-hardness materials, thereby extending the overall service life of the cutting fixture and improving processing efficiency and product quality.

[0035] Step 2: Use a CNC engraving machine to machine the shape of the mold core onto the surface of the mold base, and simultaneously use the CNC engraving machine to machine the inner groove on the mold core. The specific steps are as follows: A1: Secure the mold base to the CNC engraving machine. Use high-precision clamps to firmly hold the mold base on the CNC engraving machine's worktable, ensuring that the mold base will not move or shake during processing, thus guaranteeing processing accuracy.

[0036] A2: Start the engraving machine and use it to machine the basic shape of the mold core on the surface of the mold base, while simultaneously machining the outer cutting edge on the outer wall of the mold core. The engraving machine precisely controls the movement trajectory of the milling cutter, processing according to the preset mold core shape and outer cutting edge parameters. The angle between the plane containing the outer cutting edge and the vertical plane is 10°-20°. Specific angles can be 10°, 12°, 14°, 15°, 17°, 19°, etc. On the one hand, it can effectively ensure the sharpness of the mold core, allowing it to efficiently cut into the metal material during cutting operations; on the other hand, this angle range can effectively optimize the stress state of the mold core when cutting metal materials, making it less prone to tool breakage and effectively preventing tool skipping during cutting, thus significantly extending the service life of the mold core and improving the overall performance and economic efficiency of the cutting fixture.

[0037] A3: A precision engraving machine controls the movement of the milling cutter to machine an inner groove on the surface of the mold core. Simultaneously, an inner cutting edge is formed on the inner wall of the groove. The bottom of the groove is uneven, and the angle between the inner cutting edge and the bottom of the groove is rounded. The angle between the plane containing the inner cutting edge and the vertical plane is 8°-10°. Specific angles can be 8°, 9°, or 10°. This angle range ensures the inner cutting edge has sufficient sharpness to effectively cut into the material while optimizing the stress distribution during cutting. This allows the inner cutting edge to better disperse stress during cutting, reducing wear and damage caused by excessive localized stress. This lowers the probability of problems such as blade breakage or chipping, effectively extending the service life of the inner cutting edge and improving the stability and reliability of the cutting fixture during processing. Overall, this improves the performance and processing quality of the cutting fixture.

[0038] Through the above CNC engraving machine processing steps, the mold base is first fixed on the CNC engraving machine. The machine is then started to process the basic shape of the mold core and form an outer cutting edge on the outer wall of the mold core. Subsequently, the CNC engraving machine controls the movement of the milling cutter to process an inner groove on the surface of the mold core. At this time, the bottom of the inner groove is uneven, and the angle between the inner wall and the bottom is rounded. Utilizing the precision processing characteristics of the CNC engraving machine, the size and shape of the outer cutting edge, mold core, and inner groove can be precisely controlled, laying a good foundation for subsequent processing and effectively improving the overall processing accuracy of the cutting fixture. At the same time, this method of initially processing the inner groove shape with the CNC engraving machine provides convenience for subsequent laser finishing operations. It helps to overcome problems such as edge blackening and product discoloration when traditional CO2 laser cutting special materials, and the limitation of wire cutting for specific shapes and fine lines. It can also reduce the processing difficulty and cost of high-hardness and special materials, reduce tool wear, and extend tool life.

[0039] Step 3: Use laser equipment to perform precision machining on the mold core and inner groove. The specific steps are as follows: B1: Fix the mold base with the formed mold core onto the worktable of the laser processing equipment. Use a special positioning fixture to accurately fix the mold base onto the worktable of the laser processing equipment to ensure that the mold base is accurately and stably positioned during laser processing, thus guaranteeing the precision of laser processing.

[0040] B2: Laser processing equipment is used to finely process the outer wall of the mold core and the inner wall of the inner groove. The uneven surface at the bottom of the inner groove is processed into a flat surface, and the rounded corners inside the inner groove are processed into obtuse angles. The laser power is 30W-70W, and the laser processing equipment scans the same position at least 400 times. By setting the laser power to 30W-70W, on the one hand, it can accurately match the cutting requirements of different thicknesses (especially above 0.1mm) and special materials (such as those containing color paste, glass beads, etc.), avoiding the problems of material overheating and blackening due to high power or incomplete cutting due to low power; on the other hand, this power range, together with the 15° mold core and the obtuse-angled inner groove, creates a synergistic effect, ensuring the flatness of the cutting edge while significantly reducing the thermal damage of the laser to the mold base, thereby extending the service life of the mold base and solving the technical problem of unstable quality in fine line cutting in traditional processes. By setting the laser processing equipment to scan the same position at least 400 times, and utilizing the laser's multiple progressive ablation effects, the depth of the inner groove is ensured to meet the precision requirements of the fixture (1.5 times higher than the material being cut). At the same time, continuous energy input makes the cut surface smoother and flatter, completely eliminating the edge blackening and heat-affected zone problems caused by single high-energy impact in traditional laser cutting. Combined with 30W-70W power control and path matching technology, high-quality cutting of fine lines (below 0.7mm) of high-hardness special materials is finally achieved.

[0041] The mold base with the formed mold core is fixed on the worktable of the laser processing equipment. The laser processing equipment is used to perform precision machining on the outer wall of the mold core and the inner wall of the inner groove. The uneven surface at the bottom of the inner groove is machined into a flat surface, and the rounded corners inside the inner groove are machined into obtuse angles. On the one hand, the high precision of the laser eliminates the surface defects left by the precision engraving machine, so that the inner groove meets the flatness and angle requirements of the die-cutting process, thereby solving the problems of edge blackening and oil stains seeping in when cutting special materials with traditional lasers. On the other hand, by optimizing the geometry of the inner groove and matching it with a 15° mold core, the cutting stability of fine lines below 0.7mm is significantly improved, overcoming the processing limitations of wire cutting technology for specific shapes, and ultimately achieving a comprehensive improvement in cutting quality, processing efficiency and mold base life.

[0042] Step 4: Use a high-precision measuring instrument to measure whether the die core dimensions meet the required cutting depth. The specific measurement steps are as follows: A: The depth of the groove is measured using a high-precision depth gauge. The depth of the groove must be at least 1.5 times the height of the material being cut. The high-precision depth gauge uses a precise probe to contact the bottom of the groove for measurement, ensuring the accuracy of the measurement data.

[0043] When measuring the mold core dimensions, multiple key measurement points are selected for measurement. The results of these multiple measurements are then used to comprehensively determine whether the mold core dimensions are up to standard. By using a high-precision measuring instrument to select multiple key measurement points on the mold core for comprehensive testing in step four, and by cross-validating the multi-point measurement data, the dimensional accuracy of each part of the mold core (such as the 15° cutting edge angle and overall contour) can be comprehensively and accurately evaluated. This effectively avoids local errors or blind spots that may occur with single-point measurements, thereby ensuring that the mold core dimensions strictly meet the standards. This provides a reliable guarantee for subsequent collaborative cutting with the inner groove, and ultimately significantly improves the process stability and product qualification rate of fine-line cutting of high-hardness special materials.

[0044] B: If the depth is OK, remove the die and proceed with die cutting. The depth of the inner groove is rigorously tested using a high-precision depth measuring instrument (requiring a depth 1.5 times the height of the material to be cut). Once qualified, the die is immediately removed and the material is ready for die cutting. This ensures that the die cutting depth accurately matches the material characteristics, preventing incomplete cutting or excessive burning due to insufficient depth. Furthermore, the combination of a quantitative standard (1.5 times the material thickness) and an immediate testing process effectively solves the problem of unstable product quality caused by depth errors in traditional processes. Simultaneously, combined with a laser progressive scanning process, it ultimately achieves zero blackening and zero deformation effects when cutting fine lines from high-hardness special materials.

[0045] The implementation principle of this embodiment is as follows: First, the sheet metal is cut into multiple mold bases using a precision engraving machine to provide a foundation for subsequent processing. Then, the precision engraving machine is used to process the mold core shape and inner groove on the surface of the mold base, and to process the outer blade shape, thus initially forming the basic structure of the cutting fixture. Afterward, laser equipment is used to perform precision processing on the mold core. This can accurately control the quality of the cutting edge, effectively avoiding the problems of blackening of the edge and oil stains seeping into the product and causing discoloration when cutting certain materials with traditional CO2 lasers. It can also overcome the limitations of wire cutting technology for cutting fine lines of specific shapes. Then, a high-precision measuring instrument is used to measure the size of the mold core, thereby screening out good and bad products to ensure product quality. Finally, this process can not only achieve the required depth of die cutting, but also significantly reduce the processing difficulty and cost of high-hardness and special materials, reduce tool wear, extend tool life, and improve the overall processing efficiency of the cutting fixture and product quality.

[0046] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A processing technology for a cutting fixture, characterized in that: Includes the following steps: Step 1: Use a precision engraving machine to cut the sheet into multiple mold bases (1); Step 2: Use a CNC engraving machine to process the shape of the mold core (2) on the surface of the mold base (1), and at the same time use the CNC engraving machine to process the inner groove (3) on the mold core (2); Step 3: Use laser equipment to perform precision machining on the mold core (2) and the inner groove (3); Step 4: Use a high-precision measuring instrument to measure whether the dimensions of the mold core (2) are qualified, thereby separating good and bad products to achieve the required cutting depth.

2. The processing technology of a cutting fixture according to claim 1, characterized in that: Step two specifically includes the following steps: A1: Fix the mold base (1) onto the engraving machine; A2: Start the engraving machine and use it to process the shape of the mold core (2) on the surface of the mold base (1), and at the same time process the outer blade (21) on the outer side wall of the mold core (2); A3: The milling cutter is controlled by a precision engraving machine to process an inner groove (3) on the surface of the mold core (2). At the same time, an inner blade (22) is formed on the inner sidewall of the inner groove (3). At this time, the bottom of the inner groove (3) is an uneven surface, and the included angle between the inner blade (22) and the bottom of the inner groove (3) is a rounded corner (4).

3. The processing technology of a cutting fixture according to claim 1, characterized in that: The steel plate has a Rockwell hardness of 60 HRC or higher.

4. The processing technology of a cutting fixture according to claim 1, characterized in that: Step three specifically includes the following steps: B1: Fix the mold base (1) with the molded mold core (2) on the worktable of the laser processing equipment; B2: Use laser processing equipment to finely process the outer wall of the mold core (2) and the inner wall of the inner groove (3), process the uneven surface at the bottom of the inner groove (3) into a flat surface, and process the rounded corner (4) inside the inner groove (3) into an obtuse angle (5).

5. The processing technology of a cutting fixture according to claim 2, characterized in that: The angle between the plane containing the outer blade (21) and the vertical plane is 10°-20°.

6. The processing technology of a cutting fixture according to claim 2, characterized in that: The angle between the plane containing the inner blade (22) and the vertical plane is 8°-10°.

7. The processing technology of a cutting fixture according to claim 6, characterized in that: The laser power is 30W-70W.

8. The processing technology of a cutting fixture according to claim 1, characterized in that: The laser processing equipment scans the same location at least 400 times.

9. The processing technology of a cutting fixture according to claim 1, characterized in that: The specific measurement steps in step four are as follows: A: Use a high-precision depth measuring instrument to measure the depth of the inner groove (3), the depth of the inner groove (3) must be higher than 1.5 times the height of the cut material; B: If the depth is OK, remove the mold base (1) for cutting.

10. The processing technology of a cutting fixture according to claim 1, characterized in that: In step four, when the high-precision measuring instrument measures the size of the mold core (2), multiple key measuring points are selected for measurement, and the size of the mold core (2) is judged comprehensively based on the measurement results of multiple measuring points.

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