Design method of clamp for linear cutting machining of rolling blade

Abstract

The invention provides a design method of a clamp for linear cutting machining of a rolling blade, the clamp for linear cutting machining of the rolling blade is installed on a linear cutting machine tool, accurate positioning and clamping of the rolling blade on the clamp are achieved, and the clamp is divided into a basic flat plate, a blade process table clamping part and a blade body clamping part; the basic flat plate is used for connecting the blade process table clamping part and the blade body clamping part, the clamp is installed on a workbench of a linear cutting machine tool through the basic flat plate, and the basic flat plate is further used for alignment of the clamp on the machine tool. The clamp for linear cutting machining of the rolling blades has the advantages that economic benefits are greatly improved, the clamp for linear cutting machining of the rolling blades can clamp and machine 6-12 blades at a time, efficiency is high, positioning is accurate, clamping is stable, operation is convenient, universality is high, one set of clamp can be universal for multiple working procedures, and the clamping problem of spatial curved surface blade profiles is ingeniously solved.

Description

Technical Field

[0001] The invention relates to the technical field of aero-engine blade manufacturing, and in particular to a design method of a fixture for wire cutting processing of rolled blades. Background Art

[0002] The manufacturing technology of aircraft engine blades is one of the most complex technologies in the turbine machinery manufacturing industry, and it is also a manufacturing technology that involves a wide range of professional fields in the machinery manufacturing industry. Therefore, the level of blade manufacturing technology reflects the level of aircraft engine manufacturing technology to a certain extent.

[0003] Precision cold rolling of blade profile is a process in which the blade blank passes through a pair of rotating rolling dies, and the pressure of the die groove on the deformed metal causes plastic deformation, thereby obtaining the required blade profile. Its manufacturing cost, production efficiency and product structure performance are significantly superior to surface CNC milling, precision forging and precision electrolysis.

[0004] The segment-type stator blades have no mounting plates at both ends and need to be processed by wire cutting four times during the processing. There are a large number of such blades, and single-piece wire cutting affects the processing efficiency. More machine tools and tooling are needed to meet production needs. If multiple blades are processed simultaneously, due to certain differences in the blade process positioning tables, the blade clamping will be unstable, affecting the processing quality of the blades. During the blade wire cutting process, the fourth time is the blade cutting process. When the blade is close to cutting, the blade body will fall due to its own weight, resulting in residual blade cutting trajectory or cutting of the blade. The residual cutting trajectory needs to be manually corrected and remedied, and cutting of the blade will cause the blade to be scrapped.

[0005] Therefore, the design of a fixture for wire cutting of rolled blades that can process multiple blades simultaneously, accurately position and support the blade profile can improve the processing quality of such rolled blades, increase production efficiency and reduce production costs. The application of this fixture in the production process of segment-type rolled blades is of great significance. Summary of the invention

[0006] The purpose of the present invention is to summarize and establish a design method for a fixture for wire cutting of rolled blades. The fixture designed by this method can process multiple blades simultaneously, accurately position them, and have a blade support function. The quality of wire cutting of blade segment rolled blades is improved, production efficiency is improved, and production costs are reduced.

[0007] The present invention provides a design method for a clamp for wire cutting of a rolled blade, which is characterized in that: the clamp for wire cutting of a rolled blade is installed on a wire cutting machine to achieve accurate positioning and clamping of the rolled blade on the clamp, and the clamp is divided into three parts: a base plate, a blade process table clamping part, and a blade body clamping part;

[0008] The base plate is used to connect the clamping part of the blade process table and the clamping part of the blade body. The fixture is installed on the workbench of the wire cutting machine through the base plate. The base plate is also used to align the fixture on the machine tool.

[0009] The clamping part of the blade process table includes a positioning base, a hinge quick pressing assembly, a blade notch pressing assembly, and a side pressing assembly;

[0010] The positioning base is used to position the blade process boss. The hinge quick pressing assembly, blade notch clamping assembly, and side clamping assembly are installed on the positioning base. The positioning base is provided with a positioning surface for positioning the blade process table. The depth of the positioning surface is 6 to 12 times the thickness of the blade process table, and 6 to 12 roll-rolled blades can be clamped at the same time.

[0011] The hinge quick-pressing assembly is installed above the positioning base. When the hinge quick-pressing wrench is moved, the pressing head of the hinge quick-pressing assembly can quickly press the blade process table to clamp it in the up and down directions.

[0012] The notch clamping assembly is installed in the middle of the positioning base and passes through it. The notch clamping assembly includes a pressure hook, a reset spring, a pressure bolt, and a rubber sheet. The pressure hook is installed in the pressure hook hole of the positioning base. By tightening the pressure bolt, the pressure hook moves toward the positioning base to clamp the blade; when the pressure bolt is loosened, the pressure hook moves in the opposite direction of the positioning base under the action of the reset spring to loosen the blade; the contact portion between the pressure hook and the blade is bonded or sprayed with a rubber layer with a thickness of 0.8 to 1.5 mm.

[0013] The side clamping assembly is installed on the side of the positioning base; the side clamping assembly includes a clamping block, a polyurethane rubber block, a spring, a clamping bolt, and a support bolt. By tightening the clamping bolt, the clamping block moves toward the positioning base to clamp the blade; by loosening the clamping bolt, the clamping block moves in the opposite direction of the positioning base under the action of the reset spring to loosen the blade. The part where the clamping block contacts the blade is embedded with a polyurethane rubber block with a hardness of 70 to 90A on Shore A. The thickness of the polyurethane rubber block is not less than 8mm, and the embedding depth is 1 / 2 to 2 / 3 of the thickness of the polyurethane rubber block; the outer contour size of the polyurethane rubber block is 0.1 to 0.2mm larger than the corresponding notch size on the clamping block. During assembly, glue is applied to the bottom of the corresponding groove of the clamping block, and the polyurethane rubber block is pressed into the notch and fits; the support bolt is used to adjust the parallel clamping of the clamping block, and the top surface of the support bolt is flush with the outer surface of the polyurethane rubber block.

[0014] The side blade body clamping assembly is installed on the base plate, and the blade body clamping assembly includes a rotating pillar, an adjusting rod, a locking screw, a fixed U-shaped slot assembly, and an elastic U-shaped slot assembly; the blade body clamping assembly is connected to the base plate through a rotating pillar, and the gap between the lower end of the rotating pillar and the corresponding hole of the base plate is between 0.02 and 0.05 mm; one end of the adjusting rod is installed in the notch at the upper end of the rotating pillar, and the other end is provided with a notch for adjusting the fixed U-shaped slot assembly; the fixed U-shaped slot assembly can slide on the adjusting rod, and the gap is between 0.1 and 0.2 mm; the adjusting rod is used to support the fixed U-shaped slot assembly and adjust the position of the fixed U-shaped slot assembly and the rotating pillar. After the adjustment is completed, the locking screw is used to fix its position.

[0015] The fixed U-shaped groove assembly is composed of a support rod, a fixed U-shaped groove, a nut and a sponge; the support rod is connected to the fixed U-shaped groove through the nut, and the depth of the fixed U-shaped groove is 2 / 3 to 1 of the maximum width of the blade profile; a card slot is provided at the opening of the fixed U-shaped groove, and the internal bonding thickness is 1 / 2 to 2 / 3 of the depth of the U-shaped groove, and the density of the sponge is 45D to 55D;

[0016] The elastic U-shaped groove assembly consists of an elastic U-shaped groove body and sponge; the elastic U-shaped groove body is made of elastic metal material, and the elastic U-shaped groove body applies an inward force of 30 to 50N at the groove end, and the groove end can produce a deformation of 1 to 2mm. After the applied force is removed, the elastic U-shaped groove body returns to its original state; the sum of the depths of the elastic U-shaped groove and the fixed U-shaped groove is 1.3 to 1.5 times the maximum width of the blade profile, the internal bonding thickness of the elastic U-shaped groove is 1 / 2 to 2 / 3 of the depth of the U-shaped groove, and the density of the sponge is 45D to 55D.

[0017] Compared with the prior art, the present invention has the following advantages:

[0018] According to the design method of the fixture for wire cutting of rolled blades, the designed fixture has been successfully applied to production, and the processing efficiency and qualified rate of blades have been greatly improved, and a large amount of waste loss can be reduced every year. Good results have been achieved in the application process. With the increase in production capacity and promotion and application, the economic benefits will be greatly improved. The fixture for wire cutting of rolled blades can clamp and process 6 to 12 blades at a time, with high efficiency, accurate positioning, stable clamping, convenient operation, strong versatility, and a set of fixtures can be used in multiple processes, which cleverly solves the clamping problem of space curved blades. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments:

[0020] Figure 1 Fixture for wire cutting of roll blades;

[0021] 1- Positioning base 2- Basic plate 3- Hinge quick pressing assembly 4- Side clamping assembly 5- Blade notch clamping assembly 6- Blade body clamping assembly

[0022] Figure 2 blade notch clamping assembly;

[0023] 5-Rubber sheet 6-Pressure hook 7-Pressure bolt 8-Reset spring

[0024] Figure 3 Side clamping assembly;

[0025] 9-Compression block 10-Compression bolt 11-Reset spring 12-Support bolt 13-Polyurethane rubber block

[0026] Figure 4 Blade and blade body clamping assembly;

[0027] 14-fixed U-shaped groove 15-sponge one 16-elastic U-shaped groove 17-sponge two 18-connecting screw 19-connecting rod 20-setting screw, 21-rotating support 22-adjusting rod. DETAILED DESCRIPTION

[0028] The present invention will be further explained below in conjunction with specific implementation plans, but the present invention is not limited thereto. The structures, proportions, sizes, etc. illustrated in the drawings of the specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the restrictive conditions under which the present invention can be implemented. Therefore, they have no substantive technical significance. Any structural modification, change in proportional relationship or adjustment of size should still fall within the scope of the technical content disclosed by the present invention without affecting the effects and purposes that can be achieved by the present invention.

[0029] Example 1

[0030] The present invention provides a design method for a clamp for wire cutting of a rolled blade, which is characterized in that: the clamp for wire cutting of a rolled blade is installed on a wire cutting machine to achieve accurate positioning and clamping of the rolled blade on the clamp, and the clamp is divided into three parts: a base plate, a blade process table clamping part, and a blade body clamping part;

[0031] The base plate is used to connect the clamping part of the blade process table and the clamping part of the blade body. The fixture is installed on the workbench of the wire cutting machine through the base plate. The base plate is also used to align the fixture on the machine tool.

[0032] The clamping part of the blade process table includes a positioning base, a hinge quick pressing assembly, a blade notch pressing assembly, and a side pressing assembly;

[0033] The positioning base is used to position the blade process boss. The hinge quick pressing assembly, blade notch clamping assembly, and side clamping assembly are installed on the positioning base. The positioning base is provided with a positioning surface for positioning the blade process table. The depth of the positioning surface is 6 to 12 times the thickness of the blade process table, and 6 to 12 roll-rolled blades can be clamped at the same time.

[0034] The hinge quick-pressing assembly is installed above the positioning base. When the hinge quick-pressing wrench is moved, the pressing head of the hinge quick-pressing assembly can quickly press the blade process table to clamp it in the up and down directions.

[0035] The notch clamping assembly is installed in the middle of the positioning base and passes through it. The notch clamping assembly includes a pressure hook, a reset spring, a pressure bolt, and a rubber sheet. The pressure hook is installed in the pressure hook hole of the positioning base. By tightening the pressure bolt, the pressure hook moves toward the positioning base to clamp the blade; when the pressure bolt is loosened, the pressure hook moves in the opposite direction of the positioning base under the action of the reset spring to loosen the blade; the contact portion between the pressure hook and the blade is bonded or sprayed with a rubber layer with a thickness of 0.8 to 1.5 mm.

[0036] The side clamping assembly is installed on the side of the positioning base; the side clamping assembly includes a clamping block, a polyurethane rubber block, a spring, a clamping bolt, and a support bolt. By tightening the clamping bolt, the clamping block moves toward the positioning base to clamp the blade; by loosening the clamping bolt, the clamping block moves in the opposite direction of the positioning base under the action of the reset spring to loosen the blade. The part where the clamping block contacts the blade is embedded with a polyurethane rubber block with a hardness of 70 to 90A on Shore A. The thickness of the polyurethane rubber block is not less than 8mm, and the embedding depth is 1 / 2 to 2 / 3 of the thickness of the polyurethane rubber block; the outer contour size of the polyurethane rubber block is 0.1 to 0.2mm larger than the corresponding notch size on the clamping block. During assembly, glue is applied to the bottom of the corresponding groove of the clamping block, and the polyurethane rubber block is pressed into the notch and fits; the support bolt is used to adjust the parallel clamping of the clamping block, and the top surface of the support bolt is flush with the outer surface of the polyurethane rubber block.

[0037] The side blade body clamping assembly is installed on the base plate, and the blade body clamping assembly includes a rotating pillar, an adjusting rod, a locking screw, a fixed U-shaped slot assembly, and an elastic U-shaped slot assembly; the blade body clamping assembly is connected to the base plate through the rotating pillar, and the gap between the lower end of the rotating pillar and the corresponding hole of the base plate is between 0.02 and 0.05 mm; one end of the adjusting rod is installed in the notch at the upper end of the rotating pillar, and the other end is provided with a notch for adjusting the fixed U-shaped slot assembly; the fixed U-shaped slot assembly can slide on the adjusting rod, and the adjusting rod is used to support the fixed U-shaped slot assembly and adjust the position of the fixed U-shaped slot assembly and the rotating pillar. After the adjustment is completed, the locking screw is used to fix its position.

[0038] The fixed U-shaped groove assembly is composed of a support rod, a fixed U-shaped groove, a nut and a sponge; the support rod is connected to the fixed U-shaped groove through the nut, and the depth of the fixed U-shaped groove is 2 / 3 to 1 of the maximum width of the blade profile; a card slot is provided at the opening of the fixed U-shaped groove, and the internal bonding thickness is 1 / 2 to 2 / 3 of the depth of the U-shaped groove, and the density of the sponge is 45D to 55D;

[0039] The elastic U-shaped groove assembly consists of an elastic U-shaped groove body and a sponge; the elastic U-shaped groove body is made of elastic metal material, and the elastic U-shaped groove body applies an inward force of 30 to 50N at the groove end, and the groove end can produce a deformation of 1 to 2mm. After the applied force is removed, the elastic U-shaped groove body returns to its original state; the elastic U-shaped groove is internally bonded with a sponge with a thickness of 1 / 2 to 2 / 3 of the depth of the U-shaped groove and a density of 45D to 55D.

[0040] Example 2

[0041] The blade process positioning table has dimensions of 21mm×15mm×2mm, the blade length is 65mm, and the maximum blade width is 18mm. The fixture is designed to clamp 10 blades at a time.

[0042] The fixture is divided into three parts: the base plate, the blade process table clamping and the blade body clamping. The outer dimensions of the base plate are 150mm×60mm×15mm, and the front face of the base plate is provided with a alignment belt. The positioning base is designed with threaded holes and pin holes for connecting the base plate, the hinge quick pressing assembly, and the side clamping assembly. At the same time, a pressure hook notch is designed according to the outer dimensions of the pressure hook.

[0043] Select the hinge quick press assembly according to the size of the blade process positioning platform and install it on the top of the positioning base. Make the pressure head of the hinge quick press assembly be in the center of the blade process positioning platform.

[0044] The notch clamping assembly includes a clamping hook, a return spring, and a clamping bolt. The clamping bolt is an M6 hexagon socket bolt. The diameter of the return spring wire is 0.8mm. A rubber sheet with a thickness of 0.8mm is bonded to the contact portion between the clamping hook and the blade.

[0045] The side clamping assembly includes a clamping block, a spring, a clamping bolt, and a support bolt. The clamping bolt is an M6 hexagon socket bolt, and the diameter of the reset spring wire is 1mm. The contact part between the clamping block and the blade is embedded with a polyurethane rubber block with a hardness of 75A Shore A. The thickness of the polyurethane rubber block is 10mm and the embedding depth is 6mm. The outer contour size of the polyurethane rubber block is 0.1mm larger than the corresponding notch size on the clamping block. Apply glue to the bottom of the clamping block groove, press the polyurethane rubber block into the notch and fit it.

[0046] The blade body clamping assembly includes a rotating support, an adjusting rod, a set screw, a fixed U-shaped groove assembly, and an elastic U-shaped groove assembly. The clearance between the lower end of the rotating support and the corresponding hole of the base plate is 0.02mm.

[0047] The fixed U-shaped groove assembly includes a support rod, a fixed U-shaped groove, a nut and a sponge. The support rod is connected to the fixed U-shaped groove through the nut. The depth of the fixed U-shaped groove is 16mm. A card slot is provided at the opening of the fixed U-shaped groove. The fixed U-shaped groove is bonded with a sponge with a thickness of 9mm and a density of 45D.

[0048] The elastic U-shaped groove assembly consists of an elastic U-shaped groove body and sponge. The elastic U-shaped groove body is made of 0.5mm copper sheet metal. When a force of 30N is applied inward at the groove end, the groove end can produce a deformation of 1mm. After the applied force is removed, the elastic U-shaped groove body returns to its original state. The depth of the elastic U-shaped groove is 16mm, and the elastic U-shaped groove is bonded with a sponge with a thickness of 9mm and a density of 45D.

[0049] Before use, adjust the pressure head height of the hinge quick-pressing assembly, the position of the adjustment rod and the fixed U-shaped groove assembly support rod and tighten the clamping screw to meet the requirements of blade clamping. The order of blade clamping is to install 10 blades on the fixture, first tighten the hinge quick-pressing, then tighten the notch clamping assembly, and finally tighten the side clamping assembly. Pinch the mouth of the elastic U-shaped groove body, put its end face into the slot of the fixed U-shaped groove assembly, compress the sponge, support the blade body, and then loosen the elastic U-shaped groove body to process the blade.

[0050] Example 3

[0051] The blade process positioning table has dimensions of 32mm×15mm×2.5mm, the blade length is 80mm, and the maximum blade width is 30mm. The fixture is designed to clamp 8 blades at a time.

[0052] The fixture is divided into three parts: the base plate, the blade process table clamping and the blade body clamping. The outer dimensions of the base plate are 150mm×80mm×15mm, and the front face of the base plate is provided with a alignment belt. The positioning base is designed with threaded holes and pin holes for connecting the base plate, the hinge quick pressing assembly, and the side pressing assembly. At the same time, a pressing hook notch is designed according to the outer dimensions of the pressing hook.

[0053] Select the hinge quick press assembly according to the size of the blade process positioning platform and install it on the top of the positioning base. Make the pressure head of the hinge quick press assembly be in the center of the blade process positioning platform.

[0054] The notch clamping assembly includes a clamping hook, a return spring, and a clamping bolt. The clamping bolt is an M8 hexagon socket bolt. The diameter of the return spring wire is 1mm. A rubber sheet with a thickness of 1.2mm is bonded to the contact portion between the clamping hook and the blade.

[0055] The side clamping assembly includes a clamping block, a spring, a clamping bolt, and a support bolt. The clamping bolt is an M8 hexagon socket bolt, and the diameter of the reset spring wire is 1.2mm. The contact part between the clamping block and the blade is embedded with a polyurethane rubber block with a hardness of 80A on Shore A. The thickness of the polyurethane rubber block is 10mm and the embedding depth is 6mm. The outer dimension of the polyurethane rubber block is 0.15mm larger than the corresponding notch dimension on the clamping block. Apply glue to the bottom of the clamping block groove, press the polyurethane rubber block into the notch and fit it.

[0056] The blade body clamping assembly includes a rotating support, an adjusting rod, a set screw, a fixed U-shaped groove assembly, and an elastic U-shaped groove assembly. The clearance between the lower end of the rotating support and the corresponding hole of the base plate is 0.03mm.

[0057] The fixed U-shaped groove assembly includes a support rod, a fixed U-shaped groove, a nut and a sponge. The support rod is connected to the fixed U-shaped groove through the nut. The depth of the fixed U-shaped groove is 20mm. A card slot is provided at the opening of the fixed U-shaped groove. The fixed U-shaped groove is bonded with a sponge with a thickness of 12mm and a density of 55D.

[0058] The elastic U-shaped groove assembly consists of an elastic U-shaped groove body and sponge. The elastic U-shaped groove body is made of 0.5mm copper sheet metal. When a force of 30N is applied inward at the groove end, the groove end can produce a deformation of 1.5mm. After the applied force is removed, the elastic U-shaped groove body returns to its original state. The depth of the elastic U-shaped groove is 20mm, and the elastic U-shaped groove is bonded with a sponge with a thickness of 12mm and a density of 55D.

[0059] Before use, adjust the height of the pressure head of the hinge quick-pressing assembly, the position of the adjustment rod and the support rod of the fixed U-shaped groove assembly and tighten the clamping screw to meet the requirements of blade clamping. The order of blade clamping is to install 8 blades on the fixture, first tighten the hinge quick-pressing, then tighten the notch clamping assembly, and finally tighten the side clamping assembly. Pinch the mouth of the elastic U-shaped groove body, put its end face into the slot of the fixed U-shaped groove assembly, compress the sponge, support the blade body, and then loosen the elastic U-shaped groove body to process the blade.

[0060] Matters not covered by the present invention are known technologies.

[0061] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A design method for a fixture for wire cutting of a rolled blade, characterized in that: The fixture for wire cutting of roll blades is installed on the wire cutting machine to achieve accurate positioning and clamping of the roll blades on the fixture. The fixture is divided into three parts: the base plate, the blade process table clamping and the blade body clamping; The base plate is used to connect the clamping part of the blade process table and the clamping part of the blade body. The fixture is installed on the workbench of the wire cutting machine through the base plate. The base plate is also used to align the fixture on the machine tool.

2. The design method of the fixture for wire cutting of rolled blades according to claim 1, characterized in that: The clamping part of the blade process table includes a positioning base, a hinge quick pressing assembly, a blade notch pressing assembly, and a side pressing assembly; The positioning base is used to position the blade process boss. The hinge quick pressing assembly, blade notch clamping assembly, and side clamping assembly are installed on the positioning base. The positioning base is provided with a positioning surface for positioning the blade process table. The depth of the positioning surface is 6 to 12 blade process table thicknesses, and 6 to 12 roll-rolled blades can be clamped at the same time.

3. The design method of the fixture for wire cutting of rolled blades according to claim 2, characterized in that: The hinge quick-pressing assembly is installed above the positioning base. When the wrench of the hinge quick-pressing assembly is moved, the pressure head of the hinge quick-pressing assembly can quickly press the blade process table to clamp it in the up and down direction. The notch clamping assembly is installed in the middle of the positioning base and passes through it. The notch clamping assembly includes a pressure hook, a reset spring, a pressure bolt, and a rubber sheet. The pressure hook is installed in the pressure hook hole of the positioning base. By tightening the pressure bolt, the pressure hook moves toward the positioning base to clamp the blade; when the pressure bolt is loosened, the pressure hook moves in the opposite direction of the positioning base under the action of the reset spring to loosen the blade; the contact portion between the pressure hook and the blade is bonded or sprayed with a rubber layer with a thickness of 0.8 to 1.5 mm.

4. The design method of the fixture for wire cutting of rolled blades according to claim 2, characterized in that: The side clamping assembly is installed on the side of the positioning base; the side clamping assembly includes a clamping block, a polyurethane rubber block, a spring, a clamping bolt, and a support bolt. By tightening the clamping bolt, the clamping block moves toward the positioning base to clamp the blade; by loosening the clamping bolt, the clamping block moves in the opposite direction of the positioning base under the action of the reset spring to loosen the blade. The part where the clamping block contacts the blade is embedded with a polyurethane rubber block with a hardness of 70 to 90A on Shore A. The thickness of the polyurethane rubber block is not less than 8mm, and the embedding depth is 1 / 2 to 2 / 3 of the thickness of the polyurethane rubber block; the outer contour size of the polyurethane rubber block is 0.1 to 0.2mm larger than the corresponding notch size on the clamping block. During assembly, glue is applied to the bottom of the corresponding groove of the clamping block, and the polyurethane rubber block is pressed into the notch and fits; the support bolt is used to adjust the parallel clamping of the clamping block, and the top surface of the support bolt is flush with the outer surface of the polyurethane rubber block.

5. The design method of the fixture for wire cutting of rolled blades according to claim 1, characterized in that: The side blade body clamping assembly is installed on the base plate, and the blade body clamping assembly includes a rotating pillar, an adjusting rod, a locking screw, a fixed U-shaped slot assembly, and an elastic U-shaped slot assembly; the blade body clamping assembly is connected to the base plate through the rotating pillar, and the gap between the lower end of the rotating pillar and the corresponding hole of the base plate is between 0.02 and 0.05 mm; one end of the adjusting rod is installed in the notch at the upper end of the rotating pillar, and the other end is provided with a notch for adjusting the fixed U-shaped slot assembly; the fixed U-shaped slot assembly can slide on the adjusting rod, and the adjusting rod is used to support the fixed U-shaped slot assembly and adjust the position of the fixed U-shaped slot assembly and the rotating pillar. After the adjustment is completed, the locking screw is used to fix its position.

6. The design method of the fixture for wire cutting of rolled blades according to claim 5, characterized in that: The fixed U-shaped groove assembly consists of a support rod, a fixed U-shaped groove, a nut and a sponge; the support rod is connected to the fixed U-shaped groove through the nut, and the depth of the fixed U-shaped groove is 2 / 3 to 1 of the maximum width of the blade profile; a card groove is provided at the opening of the fixed U-shaped groove, and the internal bonding thickness is 1 / 2 to 2 / 3 of the depth of the U-shaped groove, and the density of the sponge is 45D to 55D.

7. The design method of the fixture for wire cutting of rolled blades according to claim 5, characterized in that: The elastic U-shaped groove assembly consists of an elastic U-shaped groove body and sponge; the elastic U-shaped groove body is made of elastic metal material, and the elastic U-shaped groove body applies an inward force of 30 to 50N at the groove end, and the groove end can produce a deformation of 1 to 2mm. After the applied force is removed, the elastic U-shaped groove body returns to its original state; the sum of the depths of the elastic U-shaped groove and the fixed U-shaped groove is 1.3 to 1.5 times the maximum width of the blade profile, the internal bonding thickness of the elastic U-shaped groove is 1 / 2 to 2 / 3 of the depth of the U-shaped groove, and the density of the sponge is 45D to 55D.

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