Tool for measuring air inlet and outlet edges of rolling blade

Abstract

The invention relates to a tool for measuring air inlet and outlet edges of a rolling blade. The guide sliding plates are symmetrically arranged on the two sides of the bottom plate, the measuring gauge seats are symmetrically arranged on the guide sliding plates, and the gauge setting seat is arranged between the two measuring gauge seats and locked and fixed to the bottom plate through screws. The blade positioning seat and the standard part positioning seat are arranged on the bottom plate between the two guide sliding plates and are locked and fixed through screws, and the standard part positioning seat is arranged between the gauge setting seat and the blade positioning seat; during measurement, the measuring meter seat is manually operated to move on the guide sliding plate, and the measuring meter seat measures the edge of the blade after the meter is aligned by the meter aligning seat. The tool designed by the invention can be used for quickly and accurately measuring the length of the air inlet and outlet edges of the blade with three-dimensional space characteristics in a positioning manner. The linear cutting machining quality of the rolling blades can be improved, the production efficiency is improved, and the production cost is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of aeroengines, and in particular to a tool for measuring the intake and exhaust edges 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 blade segment type stator blades have no mounting plates at both ends. After the blades are roll-formed, the edges of the blades widen and lengthen. The wire cutting process is used to remove excess waste to ensure the requirements of subsequent processing. Due to the severe distortion of the blade profile, the intake and exhaust edges of the blades are waist-shaped, so the chord length measurement elements of the intake and exhaust edges of the blades are two spatial curves. Under the current circumstances, each section of the blade profile is measured, and then the intake and exhaust edge dimensions of each section are calculated. The judgment is made by evaluating the measurement data of each section. The amount of data is large and the process is complicated. In addition, the measurement of the blade profile section requires three-coordinate or optical digital measurement equipment, which has a long measurement cycle and is difficult to achieve online measurement. Summary of the invention

[0005] In order to solve the above technical problems, the present invention provides a tool for measuring the inlet and outlet edges of rolled blades; the specific technical solution is as follows:

[0006] A tool for measuring the inlet and outlet edges of a rolled blade, comprising a base, a guide plate, a gauge seat, a measuring gauge seat, a blade positioning seat, a standard part positioning seat and a measuring standard part;

[0007] The guide slides are symmetrically arranged on both sides of the bottom plate, the measuring meter seats are symmetrically arranged on the guide slides, the measuring meter seats are arranged between the two measuring meter seats, and are locked and fixed with the bottom plate by screws;

[0008] The blade positioning seat and the standard part positioning seat are both arranged on the bottom plate between the two guide slides and are fixed by screws, and the standard part positioning seat is arranged between the alignment seat and the blade positioning seat; the standard part is arranged on the standard part positioning seat, and during measurement, the measuring seat is manually moved on the guide slide, and the measuring seat is aligned with the alignment seat before measuring the blade edge.

[0009] The preferred embodiment of the tooling for measuring the inlet and outlet edges of rolled blades is that two standard part positioning seats are provided, namely, standard part positioning seat a and standard part positioning seat b;

[0010] The standard part positioning seat a comprises a pressing plate a, a cushion block a and a positioning plate a;

[0011] The cushion block a is L-shaped and fixed to the bottom plate by screws; its upper end is a standard part contact surface, and the side walls of the cushion block a are respectively provided with a pressing plate a and a positioning plate a;

[0012] The positioning plate a is L-shaped and is set on the side wall of the cushion block a by screws, and the positioning plate a is higher than the cushion block a so that one side of the standard part rests on the positioning plate a;

[0013] The pressing plate a is fixed to the side wall on the other side of the cushion block a by screws, and is used to tighten the standard part;

[0014] The standard part positioning seat b comprises a pressing plate b, a cushion block b and a positioning plate b;

[0015] The upper end of the cushion block b is arranged in a step shape, the contact surface of the standard part is arranged in an L shape, the end surface of the standard part is pressed against the boss, and the side walls of the cushion block b are respectively provided with a pressing plate b and a positioning plate b;

[0016] The positioning plate b is L-shaped and is set on the side wall of the cushion block b by screws, and the positioning plate b is higher than the cushion block b so that one side of the standard part rests on the positioning plate b;

[0017] The pressing plate b is fixed to the side wall on the other side of the cushion block b by screws and is used to tighten the standard part.

[0018] A tool for measuring the inlet and outlet edges of a rolled blade, wherein the blade positioning seat comprises a support, a side pressure plate, a side pressure plate screw, a hook screw, a hook positioning plate, a clamping screw support, and a clamping screw;

[0019] A positioning support block is provided at the upper end of the support, and is fastened to the positioning support block by screws;

[0020] The upper end of the positioning support block is provided with a protrusion and a mounting seat, a groove is opened between the protrusion and the mounting seat along the side wall of the protrusion, a connecting hole is provided at the top of the mounting seat, a clamping platform is provided on the other side wall, and a hole is opened on the side wall of the positioning support block;

[0021] The front end of the positioning support block is provided with a boss, and the front end surface of the boss contacts the lower end surface of the blade process tenon;

[0022] A hook screw is provided at the rear end of the hook positioning plate, one of the two positioning plates at the front end is inserted into the groove between the protrusion and the mounting seat, and the other positioning plate is clamped at the lower end of the mounting seat clamping table; a downward vertical hook is provided at the front end of the positioning plate, and the hook is used to hook the bottom of the blade process tenon, and the positioning surface in front of the process tenon is adjusted by the hook screw to make it close to the convex platform at the front end of the positioning support block;

[0023] The side pressure plate is clamped on the side wall of the positioning support block and is fixed by screws;

[0024] A clamping screw support is arranged at the upper end of the mounting seat and is fixed to the mounting seat by screws. The upper part of the blade process tenon is clamped by a clamping screw arranged on the clamping screw support.

[0025] The preferred embodiment of the tooling for measuring the inlet and outlet edges of rolled blades is that the measuring table is composed of a sliding block base, a reset spring, a guide rod, a cover plate, a measuring seat, a rotating shaft sleeve, a rotating shaft pin, and a bushing;

[0026] The sliding block base is L-shaped, with the short side fitting against the guide slide wall and the other end being provided with a U-shaped groove;

[0027] The measuring seat is L-shaped, with one end being a mounting section and the other end being a connecting section. An ear seat is provided at the upper end of the mounting section, and the shaft sleeve is sleeved on the shaft pin, and the shaft pin is inserted between the two ear seats.

[0028] A circular hole is provided at the mounting end of the lower end of the ear seat, and a bushing is arranged in the circular hole for mounting a dial indicator;

[0029] The measuring seat is arranged in the U-shaped groove, and its reset spring presses against the measuring seat and the inner wall of the U-shaped groove; a guide rod is arranged in the reset spring;

[0030] The cover plate is installed on the sliding block base and the measuring seat, and its surface body is attached to the cover plate;

[0031] Align the shaft sleeve and the meter head with the meter base, adjust the meter to zero, slide the sliding block base forward along the guide slide plate, and measure.

[0032] The preferred embodiment of the tooling for measuring the inlet and outlet edges of rolled blades is that the sliding fit clearance between the sliding block base and the measuring seat is 0.01 mm, and the sliding block base is reset by a spring after manual compression, and the spring force is controlled between 10N and 15N.

[0033] The preferred embodiment of the tooling for measuring the inlet and outlet edges of rolled blades is that the positioning heights of the standard part contact surfaces of the standard part positioning seat a and the standard part positioning seat b are consistent and on the same plane.

[0034] The preferred embodiment of the tooling for measuring the inlet and outlet edges of rolled blades is that the standard part and the blade are positioned together by using a positioning plate a on a standard part positioning seat a.

[0035] The preferred embodiment of the tooling for measuring the inlet and outlet edges of rolled blades is that the shaft sleeve rotates around the shaft pin, the gap range is 0.01mm to 0.02mm, and the length of the shaft sleeve is 3mm to 10mm.

[0036] The preferred embodiment of the tooling for measuring the inlet and outlet edges of rolled blades is that the measuring standard part is made of CrWMn or Cr12MoV material with a hardness of HRc50-55 and a thickness of 5mm-8mm.

[0037] Compared with the prior art, the present invention has the following beneficial technical effects:

[0038] The technical solution of the present invention solves the measurement problem of the inlet and outlet edges of blades with spatial curves. It has high efficiency, accurate positioning, stable clamping, convenient operation and strong versatility. A set of tooling can realize the universal measurement of blades of multiple levels by replacing standard parts. The fixture designed according to the above method has been successfully applied to production, and the processing efficiency and qualified rate of blades have been greatly improved, reducing the loss of scrap and achieving good results. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] Figure 1 It is a schematic diagram of the tooling structure;

[0040] Figure 2 It is a top view of the tooling;

[0041] Figure 3 This is the main view of the measuring table base;

[0042] Figure 4 This is a top view of the measuring table base;

[0043] Figure 5 It is the side view of the measuring table base;

[0044] Figure 6 This is a structural diagram of the standard part positioning seat a;

[0045] Figure 7 This is a schematic diagram of the structure of the standard part positioning seat b;

[0046] Figure 8 A schematic diagram of the structure for pressing the measuring standard and the blade;

[0047] Fig. 9 A schematic diagram of the structure of the blade positioning seat pressing the blade;

[0048] Fig.10This is the front view of the blade positioning seat;

[0049] Fig.11 It is a side view of the blade positioning seat;

[0050] Fig.12 This is a schematic diagram of the positioning support plate structure.

[0051] In the figure: 1-base plate 2-guide slide plate 3-blade positioning seat 4-measuring standard part 5-standard part positioning seat 6-measuring meter seat 7-alignment meter seat 8-base 9-reset spring 10-guide rod 11-cover plate 12-measuring seat 13-rotating shaft sleeve 14-rotating shaft pin 15-bushing 16-pad a 17-positioning plate a18-pressure plate b 19-pad b 20-positioning plate b 21-pressure plate a 22-support, 23-positioning support plate 24-side pressure plate 25-side pressure plate screw 26-hook screw 27-hook positioning plate 28-clamping screw support 29-clamping screw 30-protrusion 31-mounting seat 32-boss 33-positioning plate 34-hook. DETAILED DESCRIPTION

[0052] The following is combined with Figure 1-12 The present invention is described in detail, but the protection scope of the present invention is not limited by the accompanying drawings.

[0053] Example 1

[0054] Design of tooling for measuring blade inlet and exhaust edges

[0055] The dimensions of the blade process positioning table are 21mm×15mm×2.5mm, the blade length is 65mm, the maximum blade width is 18mm, the edge variation of the blade inlet side is 5mm, and the edge measurement accuracy requirement is 0.08mm.

[0056] A tool for measuring the inlet and outlet edges of a rolled blade, comprising a base 1, a guide plate 2, a gauge seat 7, a measuring gauge seat 6, a blade positioning seat 3, a standard part positioning seat 5 and a measuring standard part 4;

[0057] The guide slide 2 is symmetrically arranged on both sides of the bottom plate 1, the measuring meter base 6 is symmetrically arranged on the guide slide 2, and the meter base 7 is arranged between the two measuring meter bases 6 and is locked and fixed to the bottom plate 1 by screws;

[0058] The blade positioning seat 3 and the standard part positioning seat 5 are both arranged on the bottom plate 1 between the two guide slides 2 and are fixed by screws, and the standard part positioning seat 5 is arranged between the alignment seat 7 and the blade positioning seat 3; the measuring standard part 4 is arranged on the standard part positioning seat 5, and during measurement, the measuring seat 6 is manually operated to move on the guide slide 2, and after the measuring seat 6 is aligned with the alignment seat 7, the blade edge is measured.

[0059] The standard part positioning seat 5 is provided with two, namely, the standard part positioning seat a and the standard part positioning seat b;

[0060] The standard part positioning seat a includes a pressing plate a18, a cushion block a16 and a positioning plate a17;

[0061] The pad a16 is L-shaped and fixed to the bottom plate 1 by screws; its upper end is a standard part contact surface, and the side walls of the pad a16 are respectively provided with a pressing plate a18 and a positioning plate a17;

[0062] The positioning plate a17 is L-shaped and is set on the side wall of the cushion block a16 by screws, and the positioning plate a17 is higher than the cushion block a16 so that one side of the standard part rests on the positioning plate a17;

[0063] The pressing plate a18 is fixed to the side wall on the other side of the cushion block a16 by screws to tighten the standard part;

[0064] The standard part positioning seat b includes a pressing plate b21, a cushion block b19 and a positioning plate b20;

[0065] The upper end of the cushion block 19b is arranged in a step shape, the contact surface of the standard part is arranged in an L shape, the end surface of the standard part is pressed against the boss, and the side walls of the cushion block b19 are respectively provided with a pressing plate b21 and a positioning plate b20;

[0066] The positioning plate b20 is L-shaped and is set on the side wall of the cushion block b19 by screws, and the positioning plate b20 is higher than the cushion block b19 so that one side of the standard part rests on the positioning plate b20;

[0067] The pressing plate b21 is fixed to the side wall on the other side of the cushion block b19 by screws to tighten the standard part.

[0068] The blade positioning seat 3 includes a support 22, a side pressure plate 24, a side pressure plate screw 25, a hook screw 26, a hook positioning plate 27, a clamping screw support 28, and a clamping screw 29;

[0069] The upper end of the support 22 is provided with a positioning support block 23, which is fastened to the positioning support block 23 by screws;

[0070] The upper end of the positioning support block 23 is provided with a protrusion 30 and a mounting seat 31, a groove is opened along the side wall of the protrusion between the protrusion 30 and the mounting seat 31, a connecting hole is provided at the top of the mounting seat 31, and a clamping platform is provided on the other side wall, and a hole is opened on the side wall of the positioning support block 23;

[0071] The front end of the positioning support block 23 is provided with a boss 32, the front end surface of which contacts the lower end surface of the blade process tenon;

[0072] The rear end of the hook positioning plate 27 is provided with a hook screw 26, and one of the two positioning plates 33 at the front end is inserted into the groove between the protrusion 30 and the mounting seat 31, and the other positioning plate 33 is clamped at the lower end of the mounting seat 31 clamping platform; the front end of the positioning plate 33 is provided with a downward vertical hook 34, which is used to hook the bottom of the blade process tenon, and the front positioning surface of the process tenon is adjusted by the hook screw to make the front positioning surface of the process tenon close to the boss 32 at the front end of the positioning support block 23;

[0073] The side pressure plate 24 is clamped on the side wall of the positioning support block 23 and is fixed by screws;

[0074] A clamping screw support 28 is provided at the upper end of the mounting seat 31 and is fixed to the mounting seat 31 by screws. A clamping screw 29 provided on the clamping screw support 28 is used to clamp the upper part of the blade process tenon.

[0075] The measuring table seat 6 is composed of a sliding block base 8, a reset spring 9, a guide rod 10, a cover plate 11, a measuring seat 12, a rotating shaft sleeve 13, a rotating shaft pin 14, and a bushing 15;

[0076] The sliding block base 8 is L-shaped, with the short side being in contact with the wall of the guide slide 2, and the other end being provided with a U-shaped groove;

[0077] The measuring seat 12 is L-shaped, with one end being a mounting section and the other end being a connecting section. An ear seat is provided at the upper end of the mounting section. The shaft sleeve 13 is sleeved on the shaft pin 14, and the shaft pin 14 is inserted between the two ear seats.

[0078] A circular hole is provided at the mounting end of the lower end of the ear seat, and a bushing 15 is arranged in the circular hole for mounting a dial indicator;

[0079] The measuring seat 12 is arranged in the U-shaped groove, and its reset spring 9 is pressed against the measuring seat 12 and the inner wall of the U-shaped groove; a guide rod 10 is arranged in the reset spring 9;

[0080] The cover plate 11 is mounted on the sliding block base 8 and the measuring base 12, and its surface body is attached to the cover plate 11;

[0081] The meter is adjusted to zero by aligning the rotating shaft sleeve 13 and the meter head with the meter base 7, and the sliding block base 8 slides forward along the guide slide plate 2 to perform measurement.

[0082] The sliding fit clearance between the sliding block base 8 and the measuring seat 12 is 0.01mm. After manual compression, it is reset by a spring 9, and the spring force is controlled at 12N.

[0083] The standard part contact surfaces of the standard part positioning seat a and the standard part positioning seat b have the same positioning height and are on the same plane.

[0084] The standard part and the blade are positioned together by using a positioning plate a on the standard part positioning seat a.

[0085] The shaft sleeve 13 rotates around the shaft pin 14, the gap range is 0.01mm, and the length of the shaft sleeve 13 is 8mm.

[0086] The measurement standard part 4 is made of CrWMn, has a hardness of HRc50-55, and a thickness of 6 mm.

[0087] Example 1

[0088] Design of tooling for measuring blade inlet and exhaust edges

[0089] The dimensions of the blade process positioning table are 21mm×15mm×2mm, the blade length is 50mm, the maximum blade width is 15mm, the edge variation of the blade inlet side is 3mm, and the edge measurement accuracy is required to be 0.1mm.

[0090] A tool for measuring the inlet and outlet edges of a rolled blade, comprising a base 1, a guide plate 2, a gauge seat 7, a measuring gauge seat 6, a blade positioning seat 3, a standard part positioning seat 5 and a measuring standard part 4;

[0091] The guide slide 2 is symmetrically arranged on both sides of the bottom plate 1, the measuring meter base 6 is symmetrically arranged on the guide slide 2, and the meter base 7 is arranged between the two measuring meter bases 6 and is locked and fixed to the bottom plate 1 by screws;

[0092] The blade positioning seat 3 and the standard part positioning seat 5 are both arranged on the bottom plate 1 between the two guide slides 2 and are fixed by screws, and the standard part positioning seat 5 is arranged between the alignment seat 7 and the blade positioning seat 3; the measuring standard part 4 is arranged on the standard part positioning seat 5, and during measurement, the measuring seat 6 is manually operated to move on the guide slide 2, and after the measuring seat 6 is aligned with the alignment seat 7, the blade edge is measured.

[0093] The standard part positioning seat 5 is provided with two, namely, the standard part positioning seat a and the standard part positioning seat b;

[0094] The standard part positioning seat a includes a pressing plate a18, a cushion block a16 and a positioning plate a17;

[0095] The pad a16 is L-shaped and fixed to the bottom plate 1 by screws; its upper end is a standard part contact surface, and the side walls of the pad a16 are respectively provided with a pressing plate a18 and a positioning plate a17;

[0096] The positioning plate a17 is L-shaped and is set on the side wall of the cushion block a16 by screws, and the positioning plate a17 is higher than the cushion block a16 so that one side of the standard part rests on the positioning plate a17;

[0097] The pressing plate a18 is fixed to the side wall on the other side of the cushion block a16 by screws to tighten the standard part;

[0098] The standard part positioning seat b includes a pressing plate b21, a cushion block b19 and a positioning plate b20;

[0099] The upper end of the cushion block 19b is arranged in a step shape, the contact surface of the standard part is arranged in an L shape, the end surface of the standard part is pressed against the boss, and the side walls of the cushion block b19 are respectively provided with a pressing plate b21 and a positioning plate b20;

[0100] The positioning plate b20 is L-shaped and is set on the side wall of the cushion block b19 by screws, and the positioning plate b20 is higher than the cushion block b19 so that one side of the standard part rests on the positioning plate b20;

[0101] The pressing plate b21 is fixed to the side wall on the other side of the cushion block b19 by screws to tighten the standard part.

[0102] The blade positioning seat 3 includes a support 22, a side pressure plate 24, a side pressure plate screw 25, a hook screw 26, a hook positioning plate 27, a clamping screw support 28, and a clamping screw 29;

[0103] The upper end of the support 22 is provided with a positioning support block 23, which is fastened to the positioning support block 23 by screws;

[0104] The upper end of the positioning support block 23 is provided with a protrusion 30 and a mounting seat 31, a groove is opened along the side wall of the protrusion between the protrusion 30 and the mounting seat 31, a connecting hole is provided at the top of the mounting seat 31, and a clamping platform is provided on the other side wall, and a hole is opened on the side wall of the positioning support block 23;

[0105] The front end of the positioning support block 23 is provided with a boss 32, the front end surface of which contacts the lower end surface of the blade process tenon;

[0106] The rear end of the hook positioning plate 27 is provided with a hook screw 26, and one of the two positioning plates 33 at the front end is inserted into the groove between the protrusion 30 and the mounting seat 31, and the other positioning plate 33 is clamped at the lower end of the mounting seat 31 clamping platform; the front end of the positioning plate 33 is provided with a downward vertical hook 34, which is used to hook the bottom of the blade process tenon, and the front positioning surface of the process tenon is adjusted by the hook screw to make the front positioning surface of the process tenon close to the boss 32 at the front end of the positioning support block 23;

[0107] The side pressure plate 24 is clamped on the side wall of the positioning support block 23 and is fixed by screws;

[0108] A clamping screw support 28 is provided at the upper end of the mounting seat 31 and is fixed to the mounting seat 31 by screws. A clamping screw 29 provided on the clamping screw support 28 is used to clamp the upper part of the blade process tenon.

[0109] The measuring table seat 6 is composed of a sliding block base 8, a reset spring 9, a guide rod 10, a cover plate 11, a measuring seat 12, a rotating shaft sleeve 13, a rotating shaft pin 14, and a bushing 15;

[0110] The sliding block base 8 is L-shaped, with the short side being in contact with the wall of the guide slide 2, and the other end being provided with a U-shaped groove;

[0111] The measuring seat 12 is L-shaped, with one end being a mounting section and the other end being a connecting section. An ear seat is provided at the upper end of the mounting section. The shaft sleeve 13 is sleeved on the shaft pin 14, and the shaft pin 14 is inserted between the two ear seats.

[0112] A circular hole is provided at the mounting end of the lower end of the ear seat, and a bushing 15 is arranged in the circular hole for mounting a dial indicator;

[0113] The measuring seat 12 is arranged in the U-shaped groove, and its reset spring 9 is pressed against the measuring seat 12 and the inner wall of the U-shaped groove; a guide rod 10 is arranged in the reset spring 9;

[0114] The cover plate 11 is mounted on the sliding block base 8 and the measuring base 12, and its surface body is attached to the cover plate 11;

[0115] The meter is adjusted to zero by aligning the rotating shaft sleeve 13 and the meter head with the meter base 7, and the sliding block base 8 slides forward along the guide slide plate 2 to perform measurement.

[0116] The sliding fit clearance between the sliding block base 8 and the measuring seat 12 is 0.02mm. After manual compression, it is reset by a spring 9, and the spring force is controlled at 10N.

[0117] The standard part contact surfaces of the standard part positioning seat a and the standard part positioning seat b have the same positioning height and are on the same plane.

[0118] The standard part and the blade are positioned together by using a positioning plate a on the standard part positioning seat a.

[0119] The shaft sleeve 13 rotates around the shaft pin 14, the gap range is 0.02mm, and the length of the shaft sleeve 13 is 5mm.

[0120] The measurement standard part 4 is made of Cr12MoV, has a hardness of HRc50-55, and a thickness of 4 mm.

Claims

1. A tool for measuring the inlet and outlet edges of rolled blades, characterized in that: It includes a base, a guide plate, a table alignment seat, a measuring table seat, a blade positioning seat, a standard part positioning seat and a measuring standard part; The guide slides are symmetrically arranged on both sides of the bottom plate, the measuring meter seats are symmetrically arranged on the guide slides, the measuring meter seats are arranged between the two measuring meter seats, and are locked and fixed with the bottom plate by screws; The blade positioning seat and the standard part positioning seat are both arranged on the bottom plate between the two guide slides and are fixed by screws, and the standard part positioning seat is arranged between the alignment seat and the blade positioning seat; the standard part is arranged on the standard part positioning seat, and during measurement, the measuring seat is manually moved on the guide slide, and the measuring seat is aligned with the alignment seat before measuring the blade edge.

2. A tool for measuring the inlet and outlet edges of rolled blades according to claim 1, characterized in that: There are two standard parts positioning seats, namely standard parts positioning seat a and standard parts positioning seat b; The standard part positioning seat a comprises a pressing plate a, a cushion block a and a positioning plate a; The cushion block a is L-shaped and fixed to the bottom plate by screws; its upper end is a standard part contact surface, and the side walls of the cushion block a are respectively provided with a pressing plate a and a positioning plate a; The positioning plate a is L-shaped and is set on the side wall of the cushion block a by screws, and the positioning plate a is higher than the cushion block a so that one side of the standard part rests on the positioning plate a; The pressing plate a is fixed to the side wall on the other side of the cushion block a by screws, and is used to tighten the standard part; The standard part positioning seat b comprises a pressing plate b, a cushion block b and a positioning plate b; The upper end of the cushion block b is arranged in a step shape, the contact surface of the standard part is arranged in an L shape, the end surface of the standard part is pressed against the boss, and the side walls of the cushion block b are respectively provided with a pressing plate b and a positioning plate b; The positioning plate b is L-shaped and is set on the side wall of the cushion block b by screws, and the positioning plate b is higher than the cushion block b so that one side of the standard part rests on the positioning plate b; The pressing plate b is fixed to the side wall on the other side of the cushion block b by screws and is used to tighten the standard part.

3. The tool for measuring the inlet and outlet edges of rolled blades according to claim 1, characterized in that: The blade positioning seat comprises a support, a side pressure plate, a side pressure plate screw, a hook screw, a hook positioning plate, a clamping screw support, and a clamping screw; A positioning support block is provided at the upper end of the support, and is fastened to the positioning support block by screws; The upper end of the positioning support block is provided with a protrusion and a mounting seat, a groove is opened between the protrusion and the mounting seat along the side wall of the protrusion, a connecting hole is provided at the top of the mounting seat, a clamping platform is provided on the other side wall, and a hole is opened on the side wall of the positioning support block; The front end of the positioning support block is provided with a boss, and the front end surface of the boss contacts the lower end surface of the blade process tenon; A hook screw is provided at the rear end of the hook positioning plate, one of the two positioning plates at the front end is inserted into the groove between the protrusion and the mounting seat, and the other positioning plate is clamped at the lower end of the mounting seat clamping table; a downward vertical hook is provided at the front end of the positioning plate, and the hook is used to hook the bottom of the blade process tenon, and the positioning surface in front of the process tenon is adjusted by the hook screw to make it close to the convex platform at the front end of the positioning support block; The side pressure plate is clamped on the side wall of the positioning support block and is fixed by screws; A clamping screw support is arranged at the upper end of the mounting seat and is fixed to the mounting seat by screws. The upper part of the blade process tenon is clamped by a clamping screw arranged on the clamping screw support.

4. The tool for measuring the inlet and outlet edges of rolled blades according to claim 1, characterized in that: The measuring table seat is composed of a sliding block base, a reset spring, a guide rod, a cover plate, a measuring seat, a rotating shaft sleeve, a rotating shaft pin, and a bushing; The sliding block base is L-shaped, with the short side fitting against the guide slide wall and the other end being provided with a U-shaped groove; The measuring seat is L-shaped, with one end being a mounting section and the other end being a connecting section. An ear seat is provided at the upper end of the mounting section, and the shaft sleeve is sleeved on the shaft pin, and the shaft pin is inserted between the two ear seats. A circular hole is provided at the mounting end of the lower end of the ear seat, and a bushing is arranged in the circular hole for mounting a dial indicator; The measuring seat is arranged in the U-shaped groove, and its reset spring presses against the measuring seat and the inner wall of the U-shaped groove; a guide rod is arranged in the reset spring; The cover plate is installed on the sliding block base and the measuring seat, and its surface body is attached to the cover plate; Align the shaft sleeve and the meter head with the meter base, adjust the meter to zero, slide the sliding block base forward along the guide slide plate, and measure.

5. A tool for measuring the inlet and outlet edges of rolled blades according to claim 4, characterized in that: The sliding fit clearance between the sliding block base and the measuring seat is 0.01mm, and it is reset by a spring after manual compression, and the spring force is controlled between 10N and 15N.

6. The tool for measuring the inlet and outlet edges of rolled blades according to claim 2, characterized in that: The standard part contact surfaces of the standard part positioning seat a and the standard part positioning seat b have the same positioning height and are on the same plane.

7. The tool for measuring the inlet and outlet edges of rolled blades according to claim 2, characterized in that: The standard part and the blade are positioned together by using a positioning plate a on the standard part positioning seat a.

8. The tool for measuring the inlet and outlet edges of rolled blades according to claim 4, characterized in that: The shaft sleeve rotates around the shaft pin, the gap range is 0.01mm to 0.02mm, and the length of the shaft sleeve is 3mm to 10mm.

9. The tool for measuring the inlet and outlet edges of rolled blades according to claim 1, characterized in that: The measuring standard part is made of CrWMn or Cr12MoV material, with a hardness of HRc50-55 and a thickness of 5mm-8mm.

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