CN220029996U - Three-coordinate measuring clamp for turbine blade - Google Patents

Abstract

The utility model discloses a three-coordinate measuring clamp for a turbine blade, which comprises a workbench body, wherein the workbench body is horizontally arranged, a plurality of dismounting components are arranged at two side positions of the top surface of the workbench body, the dismounting components at the same side position are compared in the same longitudinal direction, and the dismounting components at the two side positions are symmetrically distributed; the fixture component is arranged on the top surface of the disassembly and assembly component. The beneficial effects are that: according to the utility model, the lifting cylinder can drive the clamping block to reach the height required by clamping the blade, meanwhile, the transverse pushing cylinder can drive the clamping groove of the clamping block to be tightly pressed on the periphery of the blade, and the pin shaft of the clamping block can drive the clamping groove to be matched with the outer contour of the clamping position of the blade in a mode of rotating around the hinge seat, so that the blade can be clamped at the corresponding position, and then the blade can be clamped and fixed at a plurality of positions at two sides through a plurality of clamp assemblies at the positions at two sides, thereby realizing reliable fixing of the blade.

Description

Three-coordinate measuring clamp for turbine blade

Technical Field

The utility model relates to the field of turbine blade production auxiliary components, in particular to a three-coordinate measuring clamp for turbine blades.

Background

The blade in the aerial engine and the combustion engine is composed of a blade root and a blade body, the blade root is processed by a packaging technology at present commonly used for casting low-melting alloy due to the thin-wall characteristic of the blade body, the blade is packaged into a regular cuboid and then processed, the blade root is detected to be qualified or not by three coordinates after the blade root is processed, the packaging technology is used for solving the problems of poor rigidity and difficult processing of the blade root, meanwhile, adverse factors are introduced, a packaging procedure is needed to be added before the blade root is processed, a low-melting alloy removing procedure is added after the blade root is processed, the whole procedure is prolonged, the cost and period are increased, the blade root is directly clamped by a special fixture, the problem of weak rigidity of the blade is overcome on the fixture by a technical means, so that the procedure is definitely simpler, the workpiece circulation is faster, but when the blade is fixed on a three-coordinate measuring machine for measuring after the blade root is processed, the blade is generally fixed on a simple fixture by using a hot melt adhesive, and the mode of fixing the blade has quite large defects that each blade is fixed by using the hot melt adhesive, and the method is easy and has low operation and complicated.

Disclosure of Invention

The utility model aims to solve the problems, and provides a three-coordinate measuring clamp for a turbine blade, which can drive a clamping block to reach the height of a position required by clamping the blade through a lifting cylinder, can drive a clamping groove of the clamping block to be pressed on the periphery of the blade through a transverse pushing cylinder, can drive the clamping groove to be matched with the outer contour of the clamping position of the blade in a mode that a pin shaft of the clamping block rotates around a hinging seat, so that the blade can be clamped at the corresponding position, and then the blade can be clamped and fixed at a plurality of positions on two sides through a plurality of clamp assemblies on two sides, as described in detail below.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

the utility model provides a three-coordinate measuring clamp for a turbine blade, which comprises a workbench body, wherein the workbench body is horizontally arranged, a plurality of dismounting components are arranged at two side positions of the top surface of the workbench body, the dismounting components at the same side position are compared in the same longitudinal direction, and the dismounting components at the two side positions are symmetrically distributed;

the fixture assembly is arranged on the top surface of the disassembly and assembly, the fixture assembly is detachably fixed on the top surface of the workbench body through the disassembly and assembly, the fixture assemblies at the same side positions are compared in the same longitudinal direction, and the fixtures at the two side positions are symmetrically distributed.

Preferably, the fixture assembly comprises a U-shaped mounting seat and a lifting plate, the U-shaped mounting seat is fixed at the top of the dismounting assembly, the U-shaped mounting seat is transversely arranged and vertically aligned, the lifting cylinder is vertically fixed at the bottom surface of the top of the U-shaped mounting seat, the lifting push rod at the top of the lifting cylinder penetrates through the top of the U-shaped mounting seat in a vertical sliding fit mode and is horizontally fixed with the lifting plate through a connecting sleeve, the mounting plate is vertically fixed at the side part of the top surface of the lifting plate along the longitudinal direction, the clamping cylinder is transversely fixed at the mounting plate, the clamping push rods of the clamping cylinders at two side positions are mutually close and are transversely arranged at the two side positions, the hinge seat is vertically aligned and vertically aligned at the upper and lower positions of the hinge seat, the hinge pin which is vertically arranged is rotationally connected with the hinge pin is vertically aligned at the upper and lower positions of the hinge pin, the end parts of the hinge pin, which are mutually close to each other, and the clamping blocks at the two side positions are mutually close to each other, and the clamping grooves are respectively formed in the two side surfaces.

Preferably, the end surfaces of the clamping grooves at the two side positions close to each other are all open, and the inner contours of the clamping grooves at the two side positions are all cambered surfaces.

Preferably, the inner walls of the clamping grooves are covered and fixed with buffer linings with consistent contour and trend.

Preferably, the buffer lining is a rubber lining plate.

Preferably, the lifting push rod and the clamping push rod are in coaxial interference fit with the corresponding connecting sleeve.

Preferably, the disassembly and assembly comprises a matching seat and a fixing sleeve, the matching seats are vertically arranged and fixed on the bottom surface of the U-shaped mounting seat, limiting holes are transversely formed in the outer side end surfaces, away from each other, of the matching seats at two sides, a plurality of fixing sleeves are vertically fixed on two sides of the top surface of the workbench body, the fixing sleeves correspond to the number of the matching seats, matching grooves are vertically formed in the top surface of the fixing sleeves, and the matching grooves correspond to the matching seats one to one and vertically slide.

Preferably, the outer end surfaces of the fixing sleeves at two sides are respectively provided with a mounting hole along the transverse direction, the mounting holes are respectively vertically communicated with the corresponding matching grooves, the mounting holes are respectively matched with the corresponding limiting holes in a transverse coaxial mode, the mounting holes are respectively provided with limiting rods in a transverse coaxial sliding fit mode, the inner ends of the limiting rods at two sides are respectively close to each other and are respectively matched with the corresponding limiting holes in a transverse sliding mode, the outer ends of the limiting rods at two sides are respectively extended out of the outer end surfaces of the fixing sleeves and are respectively provided with a handle, the handles are coaxially fixed on the outer end surfaces of the fixing sleeves, the parts of the limiting rods between the handles and the outer end surfaces of the fixing sleeves are respectively provided with springs in a coaxial clearance fit mode, and two ends of each spring are respectively fixedly connected with the corresponding handles and the outer end surfaces of the fixing sleeves.

Preferably, the horizontal cross-section shapes of the matching groove and the matching seat are rectangular.

Preferably, the matching grooves are blind grooves in the vertical direction, and the bottom ends of the matching seats are in fit contact with the bottoms of the corresponding matching grooves.

By adopting the three-coordinate measuring clamp for the turbine blade, particularly when the turbine blade is fixed and used, as the matching seat is vertically matched with the matching groove in a sliding manner in the initial stage, and meanwhile the limiting rod is transversely matched with the limiting hole in a sliding manner, the matching seat can not be locked out of the matching groove through the matching limitation of the limiting rod and the limiting hole, so that the clamp assemblies are fixed at the top of the workbench body through the corresponding dismounting assemblies, when the three-coordinate measuring clamp is used, the lifting cylinder and the clamping cylinder are respectively connected with an external air supply pipeline, then the blade is longitudinally and horizontally arranged between the clamp assemblies at two side positions, the lifting cylinder can drive the clamping block to reach the position height required by clamping the blade, and simultaneously the transverse pushing cylinder can drive the clamping groove of the clamping block to be tightly pressed at the periphery of the blade, the pin shaft of the clamping block can drive the clamping groove to be matched with the outer contour of the clamping position of the blade in a mode of rotating around the hinging seat, so that the blade can be clamped at the corresponding position of the clamp assembly, then the blade can be clamped and fixed at a plurality of positions on two sides through a plurality of clamp assemblies on two sides, reliable fixing of the blade is realized, and then the external three-coordinate measuring equipment is convenient to use for measuring the fixed turbine blade, and the clamp assembly can be detachably fixed at the top of the workbench body in a mode of vertically sliding fit of the matching seat and the matching groove and transversely sliding fit of the limiting rod and the limiting hole, and the fixing and combining mode of the clamp assembly at the top of the workbench body is simple and easy to operate, the fixture assembly is convenient to fix fast clamping blade uses on the workstation body, and then only need pull outward after the gag lever post deviate from the spacing hole alright make the cooperation seat vertically deviate from the cooperation groove and will the fixture assembly is got away from workstation body top, the fixture assembly with the split mode of workstation body is simple easy to operate, is convenient for with the fixture assembly is detached the workstation body carries out periodic maintenance.

The beneficial effects are that: 1. according to the utility model, the lifting cylinder can drive the clamping block to reach the height required by clamping the blade, meanwhile, the transverse pushing cylinder can drive the clamping groove of the clamping block to be tightly pressed on the periphery of the blade, and the pin shaft of the clamping block can drive the clamping groove to be matched with the outer contour of the clamping position of the blade in a mode of rotating around the hinging seat, so that the blade can be clamped at the corresponding position, and then the blade can be clamped and fixed at a plurality of positions at two sides through a plurality of clamp assemblies at the positions at two sides, so that the reliable fixing of the blade is realized;

2. the clamp assembly can be detachably fixed at the top of the workbench body in a mode of vertically sliding fit of the fit seat and the fit groove and transversely sliding fit of the limit rod and the limit hole, and the fixing and combining mode of the clamp assembly at the top of the workbench body is simple and easy to operate, so that the clamp assembly can be quickly fixed on the workbench body to clamp the blade;

3. only need pull the gag lever post outward and deviate from behind the spacing hole alright make the cooperation seat vertically deviate from the cooperation groove and get the anchor clamps subassembly from workstation body top, the split mode of anchor clamps subassembly and workstation body is simple easy to operate, is convenient for dismantle the anchor clamps subassembly from the workstation body and carries out periodic maintenance.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic overall isometric view of the present utility model;

FIG. 2 is a schematic cross-sectional view of FIG. 1 of the present utility model;

FIG. 3 is an enlarged view of a portion of FIG. 2A in accordance with the present utility model;

FIG. 4 is a schematic cross-sectional view of FIG. 1 of the present utility model;

FIG. 5 is an enlarged view of a portion of the utility model at B of FIG. 4;

FIG. 6 is a front exterior view of FIG. 1 of the present utility model;

FIG. 7 is a rear exterior view of FIG. 1 of the present utility model;

FIG. 8 is a left side exterior view of FIG. 1 of the present utility model;

fig. 9 is a top exterior view of fig. 1 of the present utility model.

The reference numerals are explained as follows:

1. a workbench body; 2. disassembling and assembling the assembly; 201. a handle; 202. a spring; 203. a fixed sleeve; 204. a limit rod; 205. a mounting hole; 206. a limiting hole; 207. a mating seat; 208. a mating groove; 3. a clamp assembly; 301. a U-shaped mounting seat; 302. a lifting cylinder; 303. a lifting plate; 304. a clamping cylinder; 305. a mounting plate; 306. a hinge base; 307. a pin shaft; 308. clamping the push rod; 309. a clamping block; 3010. a clamping groove; 3011. a buffer liner; 3012. connecting sleeves; 3013. and lifting the push rod.

Detailed Description

In order to make the objects, technical solutions and advantages of the present utility model more apparent, the technical solutions of the present utility model will be described in detail below. It will be apparent that the described embodiments are only some, but not all, embodiments of the utility model. All other embodiments, based on the examples herein, which are within the scope of the utility model as defined by the claims, will be within the scope of the utility model as defined by the claims.

Referring to fig. 1-9, the utility model provides a three-coordinate measuring clamp for turbine blades, comprising a workbench body 1, wherein the workbench body 1 is horizontally arranged, a plurality of dismounting assemblies 2 are respectively arranged at two sides of the top surface of the workbench body 1, the dismounting assemblies 2 at the same side are in contrast with each other in the same longitudinal direction, the dismounting assemblies 2 at the two sides are symmetrically distributed, in particular, the dismounting assemblies 2 comprise a matching seat 207 and a fixing sleeve 203, the matching seats 207 are respectively vertically arranged and fixed on the bottom surface of a corresponding U-shaped mounting seat 301, limit holes 206 are respectively formed in the outer side end surfaces of the matching seats 207 at the two sides, which are far away from each other, of the workbench body 1, a plurality of fixing sleeves 203 are respectively vertically fixed at two sides of the top surface of the workbench body 1, the fixing sleeves 203 are corresponding to the number of the matching seats 207, matching grooves 208 are respectively vertically formed in the top surface of the fixing sleeves 203, and the fitting grooves 208 and the fitting seats 207 are in one-to-one correspondence and vertically sliding fit, the outer end surfaces of the fixing sleeves 203 at the two side positions are respectively provided with a mounting hole 205 along the transverse direction, the mounting holes 205 are respectively communicated with the corresponding fitting grooves 208 vertically, the mounting holes 205 are respectively in transverse coaxial contrast with the corresponding limiting holes 206, the mounting holes 205 are respectively provided with limiting rods 204 along the transverse coaxial sliding fit, the inner ends of the limiting rods 204 at the two side positions close to each other are respectively in transverse sliding fit with the corresponding limiting holes 206, the outer ends of the limiting rods 204 at the two side positions are respectively extended out of the outer end surfaces of the corresponding fixing sleeves 203 and coaxially fixed with handles 201, the parts of the limiting rods 204 between the outer end surfaces of the corresponding handles 201 and the fixing sleeves 203 are respectively in coaxial clearance fit with springs 202, the two ends of each spring 202 are respectively fixedly connected with the outer end surfaces of the corresponding handles 201 and the corresponding fixing sleeves 203, the clamp assembly 3 can be detachably fixed at the top of the workbench body 1 through the vertical sliding fit of the fit seat 207 and the fit groove 208 and the horizontal sliding fit of the limit rod 204 and the limit hole 206, and meanwhile, the clamp assembly 3 can be taken out of the top of the workbench body 1 by vertically taking out the fit seat 207 from the fit groove 208 only by pulling the limit rod 204 out of the limit hole 206.

The fixture assemblies 3 are all installed on the top surfaces of the dismounting assemblies 2, the fixture assemblies 3 are detachably fixed on the top surface of the workbench body 1 through the dismounting assemblies 2, the fixture assemblies 3 at the same side positions are in contrast in the same longitudinal direction, the fixtures at the two side positions are symmetrically distributed, in particular, the fixture assemblies 3 comprise U-shaped installation seats 301 and lifting plates 303, the U-shaped installation seats 301 are fixed on the tops of the corresponding dismounting assemblies 2, the U-shaped installation seats 301 are transversely arranged and vertically in overlap contrast, lifting cylinders 302 are vertically fixed on the bottom surfaces of the tops of the U-shaped installation seats 301, lifting push rods 3013 on the tops of the lifting cylinders 302 penetrate through the tops of the corresponding U-shaped installation seats 301 in a vertical sliding fit mode, lifting plates 303 are horizontally fixed on the tops of the corresponding U-shaped installation seats 301 through connecting sleeves 3012, mounting plates 305 are vertically fixed on the side parts of the tops of the lifting plates 303, the mounting plates 305 are respectively and transversely fixed with a clamping cylinder 304, the clamping push rods 308 of the clamping cylinders 304 at two sides are mutually close and are transversely arranged, the ends of the clamping push rods 308 at two sides, which are mutually close, are respectively and transversely fixed with a U-shaped hinge seat 306 through a connecting sleeve 3012, the upper and lower positions of the hinge seat 306 are vertically overlapped and are respectively and rotationally connected with a pin shaft 307 which is vertically arranged, the ends of the pin shafts 307 at the upper and lower positions, which are mutually close, are respectively fixed with a clamping block 309, the end surfaces of the clamping blocks 309 at two sides, which are mutually close, are respectively provided with a clamping groove 3010, the arrangement is such that the clamping blocks 309 can be driven to reach the height of the positions required by clamping the blades through the lifting cylinders 302, meanwhile, the clamping grooves 3010 of the clamping blocks 309 can be driven to be tightly pressed on the peripheries of the blades through the transverse pushing cylinders, and the pin shaft 307 of the clamping block 309 can drive the clamping groove 3010 to adapt to the outer contour of the blade clamping position in a manner of rotating around the hinge seat 306, so that the blade can be clamped at the corresponding position.

As the scheme of the scheme preference, the terminal surface that the clamping groove 3010 of both sides position is close to each other is all open, and the interior profile of the clamping groove 3010 of both sides position is the cambered surface, so set up, the clamping groove 3010 of both sides position of being convenient for can more laminate tightly at the peripheral corresponding position of turbine blade, the inner wall of clamping groove 3010 all covers and is fixed with the unanimous buffering inside lining 3011 of profile trend, so set up, be convenient for press from both sides the in-process of turbine blade, carry out elastic buffering through the mode that sets up buffering inside lining 3011, avoid pressing from both sides the in-process damage turbine blade edge.

The buffer lining 3011 is a rubber lining board, so setting is convenient for the buffer lining 3011 to have good stable elasticity buffer capacity, lift push rod 3013 and clamp push rod 308 all with the coaxial interference fit of corresponding adapter sleeve 3012, preferably adapter sleeve 3012 welded fastening is in the surface of corresponding articulated seat 306 or lifter plate 303 respectively, so setting is convenient for lift push rod 3013 can be through the adapter sleeve 3012 and lifter plate 303 composite connection that corresponds, and the clamp push rod 308 can be through the adapter sleeve 3012 and articulated seat 306 composite connection that corresponds simultaneously.

The horizontal section shape of mating groove 208 and mating seat 207 is the rectangle, so set up, have good location direction design when being convenient for mating seat 207 and the vertical sliding fit of mating groove 208, mating groove 208 is blind groove in vertical, and mating seat 207's bottom all contacts with the tank bottom laminating of corresponding mating groove 208, so set up, be convenient for when mating seat 207 and mating groove 208 vertical sliding fit's in-process, when spacing pole 204 and spacing hole 206 transversely coaxial contrast, can all carry out obvious suggestion with the mode of corresponding mating groove 208's tank bottom laminating contact through mating seat 207's bottom.

With the above structure, particularly when the turbine blade is fixed for use, because the matching groove 208 of the matching seat 207 is vertically and slidably matched with the limiting rod 204 and the limiting hole 206 at the same time, the matching seat 207 cannot be locked out of the matching groove 208 due to the matching limitation of the limiting rod 204 and the limiting hole 206 at the moment, so that the clamp assemblies 3 are fixed at the top of the workbench body 1 through the corresponding dismounting assemblies 2 at the moment, when the turbine blade is used, the lifting cylinder 302 and the clamping cylinder 304 are respectively connected with an external air supply pipeline, then the blade is horizontally placed between the clamp assemblies 3 at two side positions along the longitudinal direction, the clamping block 309 can be driven to reach the position height required by the clamping blade through the lifting cylinder 302, the clamping groove 3010 of the clamping block 309 can be driven to be pressed on the periphery of the blade through the transverse pushing cylinder at the same time, the pin shaft 307 of the clamping block 309 can drive the clamping groove 3010 to be matched with the outer contour of the blade clamping position in a manner of rotating around the hinging seat 306, so that the blade can be clamped at the corresponding position of the clamp assembly 3, then the blade can be clamped and fixed at a plurality of positions at two sides through a plurality of clamp assemblies 3 at two sides, reliable fixing of the blade is realized, and then the external three-coordinate measuring equipment is convenient to be used for measuring the fixed turbine blade, and the clamp assembly 3 can be detachably fixed at the top of the workbench body 1 in a manner of vertically sliding fit of the matching seat 207 and the matching groove 208 and transversely sliding fit of the limiting rod 204 and the limiting hole 206, the fixing combination manner of the clamp assembly 3 at the top of the workbench body 1 is simple and easy to operate, the clamp assembly 3 can be conveniently and rapidly fixed on the workbench body 1 for clamping the blade, and then, after the limiting rod 204 is pulled out of the limiting hole 206, the matching seat 207 can be pulled out of the matching groove 208 vertically, so that the clamp assembly 3 is taken out of the top of the workbench body 1, the clamp assembly 3 and the workbench body 1 are detached in a simple and easy-to-operate mode, and the clamp assembly 3 is detached from the workbench body 1 for regular overhaul and maintenance.

The foregoing is merely illustrative of the present utility model, and the present utility model is not limited thereto, and any person skilled in the art will readily recognize that variations or substitutions are within the scope of the present utility model. Therefore, the protection scope of the present utility model shall be subject to the protection scope of the claims.

Claims (10)

1. The utility model provides a turbine blade three-dimensional measurement anchor clamps, includes workstation body (1), its characterized in that: the workbench comprises a workbench body (1), wherein a plurality of dismounting components (2) are mounted at two side positions of the top surface of the workbench body (1), the dismounting components (2) at the same side position are compared in the same longitudinal direction, and the dismounting components (2) at the two side positions are symmetrically distributed;

the fixture assembly is characterized in that the fixture assemblies (3) are mounted on the top surfaces of the dismounting assemblies (2), the fixture assemblies (3) are detachably fixed on the top surface of the workbench body (1) through the dismounting assemblies (2), the fixture assemblies (3) at the same side positions are aligned in the same longitudinal direction, and the fixtures at the two side positions are symmetrically distributed.

2. The turbine blade three-coordinate measuring jig according to claim 1, wherein: the fixture assembly (3) comprises a U-shaped mounting seat (301) and a lifting plate (303), the U-shaped mounting seat (301) is fixed at the top of the dismounting assembly (2), the U-shaped mounting seat (301) is transversely arranged and vertically overlapped, the lifting cylinder (302) is vertically fixed at the bottom surface of the top of the U-shaped mounting seat (301), the lifting push rod (3013) at the top of the lifting cylinder (302) penetrates through the top of the corresponding U-shaped mounting seat (301) in a vertical sliding fit manner, the top end of the lifting plate is horizontally fixed with the lifting plate (303) through a connecting sleeve (3012), the top surface side part of the lifting plate (303) is vertically fixed with a mounting plate (305) along the longitudinal direction, the mounting plate (305) is horizontally fixed with a clamping cylinder (304), the clamping push rods (308) at two sides are mutually close and are transversely arranged, the ends of the clamping cylinders (308) at two sides are mutually close, the ends of the clamping push rods are respectively fixed with a U-shaped hinge pin (306) through the connecting sleeve (3012), the upper hinge pin (307) and the lower hinge (307) are vertically overlapped, the hinge (307) are mutually connected with the hinge pin (307) at the two sides of the hinge (307), and clamping grooves (3010) are formed in the end faces, close to each other, of the clamping blocks (309) at the two side positions.

3. A turbine blade three-coordinate measuring jig according to claim 2, wherein: the end surfaces of the clamping grooves (3010) at two side positions close to each other are open, and the inner contours of the clamping grooves (3010) at two side positions are cambered surfaces.

4. A turbine blade three-coordinate measuring jig according to claim 3, wherein: the inner walls of the clamping grooves (3010) are covered and fixed with buffer linings (3011) with consistent contour and trend.

5. The turbine blade three-coordinate measuring jig of claim 4, wherein: the buffer lining (3011) is a rubber lining board.

6. The turbine blade three-coordinate measuring jig according to claim 5, wherein: the lifting push rod (3013) and the clamping push rod (308) are in coaxial interference fit with the corresponding connecting sleeve (3012).

7. A three-coordinate measuring jig for a turbine blade according to any one of claims 2 to 6, wherein: the disassembly and assembly (2) comprises a matching seat (207) and a fixing sleeve (203), the matching seat (207) is vertically arranged and fixed on the bottom surface of the U-shaped installation seat (301), limiting holes (206) are formed in the outer end surfaces, away from each other, of the matching seats (207) at two side positions, a plurality of fixing sleeves (203) are vertically fixed on two sides of the top surface of the workbench body (1), the fixing sleeves (203) correspond to the matching seats (207) in number, matching grooves (208) are vertically formed in the top surface of the fixing sleeves (203), and the matching grooves (208) are in one-to-one and vertically sliding fit with the matching seats (207).

8. The turbine blade three-coordinate measuring jig of claim 7, wherein: the outside terminal surface that fixed cover (203) kept away from each other in both sides position all has seted up mounting hole (205) along transversely, mounting hole (205) all with correspond cooperation groove (208) vertical intercommunication, just mounting hole (205) all with corresponding spacing hole (206) transversely coaxial contrast, mounting hole (205) all have gag lever post (204) along transversely coaxial sliding fit, and the inner that gag lever post (204) are close to each other in both sides position all with corresponding spacing hole (206) transversely sliding fit, the outer end that gag lever post (204) are kept away from each other in both sides position all stretches out corresponding outside terminal surface and coaxial fixed with handle (201) of fixed cover (203), gag lever post (204) are located corresponding handle (201) with the part between the outside terminal surface of fixed cover (203) all coaxial clearance fit has spring (202), just the both ends of spring (202) respectively with corresponding handle (201) and the outside terminal surface fixed connection of fixed cover (203).

9. The turbine blade three-coordinate measuring jig of claim 8, wherein: the horizontal cross-section shapes of the matching groove (208) and the matching seat (207) are rectangular.

10. A turbine blade three-coordinate measuring jig according to claim 8 or 9, wherein: the matching grooves (208) are blind grooves in the vertical direction, and the bottom ends of the matching seats (207) are in fit contact with the bottoms of the corresponding matching grooves (208).