CN109702246B - Assembly tool and method for ensuring concentricity of annular upper wedge-shaped threaded support plate nut - Google Patents

Abstract

The invention relates to the technical field of aerospace assembly, and specifically discloses an assembly tool and method for ensuring the concentricity of a wedge-shaped threaded pallet nut on a ring. The assembly tool includes a bottom hole drilling die and a rivet hole drilling die, which are used for separating structural products Drill holes to install multiple wedge-threaded pallet nuts. The assembling method comprises the following steps: 1) positioning the separation structure product in the a section of the bottom hole drilling die; 2) drilling a plurality of bottom holes at the small diameter end of the separation structure product; 3) turning the bottom hole drilling die; The b-section of the bottom hole drilling die locates the separation structure product; 5) Drills multiple bottom holes at the large diameter end of the separation structure product; 6) Drills the rivet holes on the separation structure product; 7) Riveting the wedge-shaped threaded pallet nut. The invention greatly improves the assembly precision of the ring-up wedge-shaped thread pallet nut, ensures the production quality of the separation structure product, realizes the smooth connection between the separation structure product and other products, and shortens the production cycle of the separation structure product.

Description

An assembly tool and method for ensuring the concentricity of the wedge-shaped thread support plate nut on the ring

technical field

The invention belongs to the technical field of aerospace assembly, and in particular relates to an assembly tool and method for ensuring the concentricity of a ring-up wedge-shaped threaded pallet nut.

Background technique

As one of the main forms of connection in aerospace products, the reliability requirements of the fastening connection do not allow the possibility of failure, but it is difficult to achieve in practical engineering. At present, in order to solve the problems in the product development process, the wedge-shaped threaded support plate nut is used on the upper part of the separation structure ring to adapt to various complex and harsh environments.

The separation structure is an integral casting machined structure, in the shape of a cone, used to connect two structural products of different diameters. The separate structure product is shown in Figure 1. This separate structure is used to connect two shells with different diameters, and the connection method is bolt connection. The upper and lower rings need to be installed with multiple wedge threaded support nuts. The installation of two rings of pallet nuts requires high precision, and multiple pallet nuts are installed on the same plane, and at the same time, ensure that all wedge threaded pallet nuts are concentric with the connection holes of the housing. The wedge-shaped thread pallet nut is a special standard part, limited by the influence of the structure, and the riveting operation space is small.

The assembly method of the similar structure annular butt pallet nut is:

(1) When the A shell is machined, the butt hole is pre-made by the CNC machine tool.

(2) Connect and fix the A shell with the B shell according to the quadrant, and reveal the docking hole to the B shell through the pre-made hole on the A shell.

(3) Use screws to fix the nut on the docking hole of the B shell.

(4) The rivet hole is exposed to the shell through the nut hole of the support plate.

(5), riveting the pallet nut.

This assembly method has the following disadvantages:

(1) After the number of holes in the A shell is controlled, after the holes are penetrated into the B shell, the accuracy of the A shell hole becomes poor, and the coordination and assembly accuracy of the two shells is low.

(2) The holes must be made after the two products are connected and fixed together, and the assembly cycle is long.

(3) The separation structure needs to be connected with two products of different diameters at the same time, and the operation is complicated.

(4) The support plate nut is fixed by screws. After the support plate nut is riveted and assembled, the centripetality is not good.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide an assembling tool and method for ensuring the concentricity of the wedge-shaped threaded support nut on the ring, so as to improve the assembly accuracy of the wedge-shaped support nut on the ring.

The technical scheme of the present invention is as follows:

An assembly tool for ensuring the concentricity of wedge-shaped thread support nuts on the ring, including a bottom hole drilling die and a rivet hole drilling die, used for drilling holes on separate structural products to install a plurality of wedge-shaped thread support nuts;

There is a rivet hole on both sides of the wedge-shaped thread supporting plate nut, which is used when assembling the wedge-shaped thread supporting plate nut;

The separation structure product is in the shape of a conical cylinder, and an annular assembly surface is respectively provided at the opening of the large diameter end and the opening of the small diameter end, and a bottom hole is drilled on it;

A docking platform is respectively provided on the assembly surfaces of both ends of the separated structure product for fixing with the bottom hole drilling die;

The bottom hole drilling die is in the shape of a cylinder, and a horizontal separation platform is arranged inside the bottom hole drilling die, and the bottom hole drilling die is divided into a section and a b section, and the inner diameter of the a section of the bottom hole drilling die is larger than Inner diameter of segment b;

A circle of drilling holes are respectively processed on the side walls of section a and section b of the bottom hole drilling die for installing quick-change drill sleeves;

When drilling the bottom hole at the opening of the small diameter end of the split structure product, insert the small diameter end of the split structure product into the a section of the bottom hole drilling die, so that the assembly surface at the opening of the small diameter end of the split structure product and the bottom hole drill Centering of drill holes on die a segment;

When drilling the bottom hole at the opening of the large diameter end of the split structure product, insert the large diameter end of the split structure product into the b section of the bottom hole drilling die, so that the assembly surface at the opening of the large diameter end of the split structure product and the bottom hole drill Centering of drill holes on die b segment;

The rivet hole drilling die is composed of a drilling template and construction screws, and is used for drilling rivet holes on the separated structural products;

The surface radian of the drill template matches the radian of the assembly surface of the separation structure product, and the drill template is provided with centering holes and rivet holes, which are respectively matched with the screw holes and rivet holes on the wedge-shaped threaded support nut;

The construction screw includes a polished rod section and a threaded section, the size of the polished rod section is matched with the size of the bottom hole processed on the separation structure product and the centering hole on the drilling template, and the threaded section can be threadedly connected with the fixing nut;

When drilling rivet holes on the separation structure product, the drilling template is closely attached to the inner wall of the assembly surface of the separation structure product, and the drilling template and the separation structure product are connected and fixed by construction screws.

It also includes clamping the pressing plate on the docking platform of the small diameter end of the separation structure product, so that the separation structure product and the bottom hole drilling die are pressed and fixed;

The pressing plate is in the shape of a disc.

By clamping the pressure block on the butt platform of the large diameter end of the separation structure product, using the set screw to support the pressure block, and fixing the pressure block and the separation platform on the bottom hole drilling die with screws, the separation structure product Press and fix with the bottom hole drill die.

The separating platform of the bottom hole drilling die is in the shape of a ring, and eight radial vertical ribs are processed on the separating platform, and lightening holes are hollowed out between the adjacent vertical ribs to reduce the weight of the bottom hole drilling die.

The quick-change drill sleeves include drill sleeves I, drill sleeves II, drill sleeves III, drill sleeves IV, drill sleeves V, and drill sleeves VI of successively increased specifications, which are used to control the drilling accuracy of the bottom holes, wherein the drill sleeves are used to control the drilling accuracy of the bottom holes. The specifications of VI are the same as the design drawings.

Two lifting lugs are provided at the top opening of the bottom hole drilling mold, and the bottom hole drilling mold is turned over and used through the lifting lugs.

The large diameter end and the small diameter end of the separation structure product are respectively marked with quadrant lines, and at the same time, the quadrant lines are respectively marked at the openings at both ends of the bottom hole drilling die.

An assembling method for ensuring the concentricity of the wedge-shaped threaded support nut on the ring, comprising the following steps:

1) Position and separate the structural product in the a section of the bottom hole drilling die;

2) Drill multiple bottom holes at the small diameter end of the separation structure product;

3) Flip the bottom hole drilling die;

4) Position and separate the structural product in the b section of the bottom hole drilling die;

5) Drill multiple bottom holes at the large diameter end of the separation structure product;

6) Drill the rivet holes on the separation structure product;

7) Riveting the wedge threaded pallet nut.

Specifically include the following steps:

1) Position and separate the structure product in the a section of the bottom hole drilling die

With the a section of the bottom hole drilling die facing upwards, put the small diameter end of the separated structure product into the a section of the bottom hole drilling die according to the quadrant line;

Use the pressure plate to fix the split structure product on the a section of the bottom hole drilling die;

2) Drill multiple bottom holes at the small diameter end of the separation structure product

Install drill sleeve I on a circle of drill holes in section a of the bottom hole drilling die, and make bottom holes on the assembly surface of the small diameter end of the separated structure product according to drill sleeve I; replace the drill sleeve I on the bottom hole drilling die with Drill sleeve II, make holes on the basis of the bottom hole according to the drill sleeve II; replace the drill sleeve II on the bottom hole drilling die with the drill sleeve III, and ream the holes for the first time according to the drill sleeve III; Set Ⅲ is replaced with drill set Ⅳ, and the second reaming is performed according to drill set Ⅳ; Replace the drill sleeve Ⅴ with drill sleeve Ⅵ, and press the drill sleeve Ⅵ for the fourth reaming;

The fourth reaming is the final size of the design drawing;

3) Flip the bottom hole drilling die

Take out the separated structure product from the section a of the bottom hole drilling die, and use the lifting lugs on the bottom hole drilling die to turn the bottom hole drilling die so that the b section of the bottom hole drilling die faces upwards;

4) Positioning and separating structural products in the b section of the bottom hole drilling die

According to the quadrant line, put the large diameter end of the separated structure product into the b section of the bottom hole drilling die;

Use screws, set screws and pressure blocks to fix the split structure product to the b section of the bottom hole drilling die;

5) Drill multiple bottom holes at the large diameter end of the separation structure product

Install the drill sleeve I on a circle of drilling holes in the b section of the bottom hole drilling die, and make a bottom hole on the assembly surface of the large diameter end of the separated structure product according to the drill sleeve I; replace the drill sleeve I on the bottom hole drilling die with a drill Set II, make holes on the basis of the bottom hole according to the drill set II; replace the drill set II on the bottom hole drilling die with the drill set III, and ream the holes according to the drill set III for the first time; replace the drill set on the bottom hole drilling die Ⅲ is replaced with drill sleeve Ⅳ, and the second reaming is performed according to drill sleeve Ⅳ; Replace the drill sleeve Ⅴ with the drill sleeve Ⅵ, and press the drill sleeve Ⅵ for the fourth reaming;

The fourth reaming is the final size of the design drawing;

6) Drill the rivet holes on the split structure product

Take out the separation structure product from the b section of the bottom hole drilling mold, fix the drilling template on the inner wall of the assembly surface of the separation structure product with construction screws, and pass the rivet hole on the drilling template to the assembly surface of the separation structure product. Rivet holes for riveting wedge-threaded pallet nuts;

7) Riveted wedge threaded pallet nut

Divide the rivet hole on the separation structure product, and use the forward riveting method to rive the wedge threaded pallet nut.

In step 1) and step 4), ensure that the fitting gap between the side surface of the separation structure product and the inner wall of the bottom hole drilling mold is not greater than 0.3mm, and if it is greater than that, add an equal-thickness gasket at the 180° orientation.

The remarkable effect of the present invention is:

(1) The present invention greatly improves the assembly accuracy of the wedge-shaped threaded support nut on the ring, ensures the production quality of the separation structure product, realizes the smooth connection between the separation structure product and other products, and shortens the production cycle of the separation structure product.

(2) The successful application of the coordinated assembly technology of the wedge-shaped thread standard parts in the circumferential direction of the present invention can provide technical support for the subsequent experimental research of similar products.

Description of drawings

Figure 1 is a schematic diagram of a separate structure shell;

Figure 2 is a schematic diagram of a wedge-shaped threaded pallet nut;

Fig. 3 is a schematic diagram of the structure of the bottom hole drilling die separating platform;

Figure 4 is a schematic diagram of the use of a bottom hole drilling die;

Figure 5 is a schematic diagram of the use of a rivet hole drilling die.

In the picture: 1- wedge threaded support plate nut; 2- separation structure product; 3- bottom hole drilling die; 4- rivet hole; 5- lifting lug; 6- quick change drill sleeve; 7- pressure plate; 8- screw; 9 -Set screws; 10-Press block; 11-Drill template; 12-Construction screws.

Detailed ways

The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

An assembly tool for ensuring the concentricity of ring-up wedge-shaped threaded support nuts, including a bottom hole drilling die 3 and a rivet hole drilling die, used to drill holes on a separate structural product 2 to install multiple wedge-threaded support nuts 1 . As shown in FIG. 2 , two rivet holes 4 are respectively provided on both sides of the wedge-shaped thread supporting plate nut 1 , which are used when assembling the wedge-shaped thread supporting plate nut 1 .

As shown in FIG. 1 , the separation structure product 2 is in the shape of a cone, and annular mounting surfaces are respectively provided at the opening of the large diameter end and the opening of the small diameter end, and bottom holes are drilled on it. Quadrant lines are respectively marked on the large diameter end and the small diameter end of the separation structure product 2 . A docking platform is respectively provided on the assembly surfaces of the two ends of the separated structure product 2 for fixing with the bottom hole drilling die 3 .

As shown in FIG. 3 and FIG. 4 , the bottom hole drilling die 3 is in the shape of a cylinder, and quadrant lines are respectively scribed at the openings at both ends thereof. A horizontal separating platform is arranged inside the bottom hole drilling die 3, and the bottom hole drilling die 3 is divided into a section and a b section. The separating platform is in the shape of a ring, and eight radial vertical ribs are processed on the separating platform, and lightening holes are hollowed out between adjacent vertical ribs to reduce the weight of the bottom hole drilling die 3 . The inner diameter of section a of the bottom hole drilling die 3 is larger than the inner diameter of section b.

A circle of drilling holes are respectively processed on the side walls of the a section and the b section of the bottom hole drilling die 3 for installing the quick-change drill sleeve 6 . The quick-change drill sleeve 6 includes drill sleeves I, drill sleeves II, drill sleeves III, drill sleeves IV, drill sleeves V and drill sleeves VI, which are sequentially increased in size, and are used to control the drilling accuracy of the bottom hole, among which the drill sleeves are used to control the drilling accuracy of the bottom holes. The specifications of set VI are the same as the design drawings.

When drilling the bottom hole at the opening of the small diameter end of the separation structure product 2, insert the small diameter end of the separation structure product 2 into the a section of the bottom hole drilling die 3, and clamp the pressure plate 7 on the diameter of the separation structure product 2. On the small end docking platform, press and fix the separation structure product 2 and the bottom hole drilling die 3, so that the assembly surface at the opening of the small diameter end of the separation structure product 2 is aligned with the drill hole on the bottom hole drilling die section 3a. The pressing plate 7 is in the shape of a disc.

When drilling the bottom hole at the opening of the large diameter end of the split structure product 2, insert the large diameter end of the split structure product 2 into the b section of the bottom hole drilling die 3, and clamp the pressing block 10 on the bottom hole of the split structure product 2. On the docking platform of the large diameter end, the pressing block 10 is supported by the set screw 9, and the pressing block 10 is fixed with the separation platform on the bottom hole drilling die 3 by the screw 8, and then the separation structure product 2 and the bottom hole drilling die 3 are pressed. Tightly fix it so that the mounting surface at the opening of the large diameter end of the separation structure product 2 is aligned with the drilled hole on the bottom hole drilling die 3b section.

Two lifting lugs 5 are provided at the top opening of the bottom hole drilling die 3 , and the bottom hole drilling die 3 is turned over and used through the lifting lugs 5 .

As shown in FIG. 5 , the rivet hole drilling die is composed of a drilling template 11 and construction screws 12 , and is used for drilling rivet holes on the separation structure product 2 . The surface radian of the drill template 11 matches the radian of the assembly surface of the separation structure product 2, and the drill template 11 is provided with a centering hole and a rivet hole, which are respectively matched with the screw holes and rivet holes 4 on the wedge-shaped threaded pallet nut 1. Size matches.

The construction screw 12 includes a polished rod section and a threaded section, wherein the size of the polished rod section matches the size of the bottom hole processed on the separation structure product 2 and the centering hole on the drilling template 11, and the threaded section can be threadedly connected with the fixing nut.

When drilling the rivet holes on the separation structure product 2 , the drill template 11 is closely attached to the inner wall of the assembly surface of the separation structure product 2 , and the drilling template 11 and the separation structure product 2 are connected and fixed by the construction screws 12 . The rivet holes for riveting the wedge threaded pallet nut 1 are obtained by drilling through the rivet holes on the template 11 to the assembly surface of the separation structure product 2 .

An assembling method for ensuring the concentricity of the wedge-shaped threaded support nut on the ring, comprising the following steps:

1) Position and separate structure product 2 in section a of bottom hole drilling die 3

With the a section of the bottom hole drilling die 3 facing upwards, put the small diameter end of the separation structure product 2 into the a section of the bottom hole drilling die 3 according to the quadrant line;

Make sure that the fitting gap between the side surface of the separation structure product 2 and the inner wall of the bottom hole drilling die 3 is not greater than 0.3mm, if it is greater than that, add an equal-thickness gasket at the 180° orientation;

Use the pressure plate 7 to fix the separation structure product 2 on the section a of the bottom hole drilling die 3 .

2) Drill multiple bottom holes at the small end of the separation structure product 2

Install drill sleeves I on a circle of drill holes in section 3a of the bottom hole drilling die respectively, and make bottom holes on the assembly surface of the small diameter end of the separation structure product 2 according to the drill sleeve I; place the drill sleeve I on the bottom hole drilling die 3 Replace the drill sleeve II, and make holes on the basis of the bottom hole according to the drill sleeve II; replace the drill sleeve II on the bottom hole drilling die 3 with the drill sleeve III, and ream the holes according to the drill sleeve III for the first time; The drill sleeve III on 3 is replaced with drill sleeve IV, and the second reaming is performed according to drill sleeve IV; Replace the drill sleeve Ⅴ on the bottom hole drilling die 3 with the drill sleeve Ⅵ, and press the drill sleeve Ⅵ for the fourth reaming;

The fourth reaming is the final size of the design drawing.

3) Flip the bottom hole drilling die 3

Take out the separation structure product 2 from the section a of the bottom hole drilling die 3, and use the lifting lugs 5 on the bottom hole drilling die 3 to turn the bottom hole drilling die 3 so that the b section of the bottom hole drilling die 3 faces upwards.

4) Position and separate structure product 2 in the b section of the bottom hole drilling die 3

According to the quadrant line, put the large diameter end of the separation structure product 2 into the b section of the bottom hole drilling die 3;

Make sure that the fitting gap between the side surface of the separation structure product 2 and the inner wall of the bottom hole drilling die 3 is not greater than 0.3mm, if it is greater than that, add an equal-thickness gasket at the 180° orientation;

Use the screw 8, the set screw 9 and the pressing block 10 to fix the split structure product 2 on the b section of the bottom hole drilling die 3.

5) Drill multiple bottom holes at the big end of the separation structure product 2

Install drill sleeve I on a circle of drilling holes in section 3b of the bottom hole drilling die, and make bottom holes on the assembly surface of the large diameter end of the separation structure product 2 according to the drill sleeve I; replace the drill sleeve I on the bottom hole drilling die 3 For drill sleeve II, make holes on the basis of the bottom hole according to drill sleeve II; replace the drill sleeve II on the bottom hole drill die 3 with drill sleeve III, and ream the holes according to the drill sleeve III for the first time; Replace the drill sleeve III on the top with drill sleeve IV, and press the drill sleeve IV for the second reaming; replace the drill sleeve IV on the bottom hole drilling die 3 with the drill sleeve V, and press the drill sleeve V for the third reaming; Replace the drill sleeve Ⅴ on the hole drilling die 3 with the drill sleeve Ⅵ, and press the drill sleeve Ⅵ for the fourth reaming;

The fourth reaming is the final size of the design drawing.

6) Drill the rivet holes on the separation structure product 2

Take out the separation structure product 2 from the b section of the bottom hole drilling form 3, use the construction screws 12 to fix the drilling formwork 11 on the inner wall of the assembly surface of the separation structure product 2, and pass the rivet holes on the drilling formwork 11 to the separation structure product 2. Through holes on the assembly surface, rivet holes for riveting the wedge-shaped threaded pallet nut 1 are obtained.

7) Riveted wedge thread pallet nut 1

Make a dimple at the rivet hole on the separation structure product 2, and use the forward riveting method to rive the wedge-shaped thread pallet nut 1.

Claims (10)

1. An assembly tool for ensuring concentricity of the wedge-shaped threaded support nut on the ring is characterized in that: it comprises a bottom hole drilling die (3) and a rivet hole drilling die for drilling holes on the separation structure product (2) to install multiple a wedge threaded backing nut (1); A rivet hole (4) is provided on both sides of the wedge-shaped thread supporting plate nut (1), which is used when assembling the wedge-shaped thread supporting plate nut (1); The said separation structure product (2) is in the shape of a conical cylinder, and an annular assembly surface is respectively provided at the opening of its large diameter end and the opening of its small diameter end, and bottom holes are drilled on it; A docking platform is respectively provided on the assembly surfaces of both ends of the separated structure product (2) for fixing with the bottom hole drilling die (3); The bottom hole drilling die (3) is in the shape of a cylinder, and a horizontal separating platform is arranged inside the bottom hole drilling die (3), and the bottom hole drilling die (3) is divided into a section and a b section. The inner diameter of section a of the bottom hole drilling die (3) is larger than the inner diameter of section b; A circle of drilling holes are respectively machined on the side wall of section a and the side wall of section b of the bottom hole drilling die (3) for installing the quick-change drill sleeve (6); When drilling the bottom hole at the opening of the small diameter end of the split structure product (2), insert the small diameter end of the split structure product (2) into the a section of the bottom hole drilling die (3), so that the split structure product (2) The assembly surface at the opening of the small diameter end is aligned with the drilled hole on the a section of the bottom hole drilling die (3); When drilling the bottom hole at the opening of the large diameter end of the separation structure product (2), insert the large diameter end of the separation structure product (2) into the b section of the bottom hole drilling die (3), so that the separation structure product (2) The assembly surface at the opening of the big end of the diameter is aligned with the drill hole on the b section of the bottom hole drilling die (3); The rivet hole drilling die is composed of a drilling template (11) and a construction screw (12), and is used for drilling rivet holes on the separation structure product (2); The surface radian of the drill template (11) matches the radian of the assembly surface of the separation structure product (2), and the drill template (11) is provided with a centering hole and a rivet hole, which are respectively matched with the wedge-shaped threaded support nut (1). The size of the screw holes and the rivet holes (4) are matched; The construction screw (12) includes a polished rod section and a threaded section, the size of the polished rod section is matched with the size of the bottom hole processed on the separation structure product (2) and the centering hole on the drilling template (11), and the threaded section can be fixed with the size of the hole. Nut thread connection; When drilling the rivet holes on the separation structure product (2), the drilling template (11) is closely attached to the inner wall of the assembly surface of the separation structure product (2), and the drilling template (11) and the separation structure product are connected by the construction screws (12). (2) The connection is fixed. 2. An assembly tool for ensuring the concentricity of the ring-up wedge-shaped threaded support plate nut as claimed in claim 1, characterized in that it further comprises clamping the pressure plate (7) on the small diameter end of the separation structure product (2). On the docking platform, the separation structure product (2) and the bottom hole drilling die (3) are pressed and fixed; The pressing plate (7) is in the shape of a disc. 3. The assembling tool for ensuring concentricity of the wedge-shaped threaded support nut on the ring-upward as claimed in claim 2, characterized in that: by clamping the pressing block (10) on the large diameter end of the separation structure product (2) On the docking platform, the pressing block (10) is supported by the set screw (9), and at the same time, the pressing block (10) is fixed with the separating platform on the bottom hole drilling die (3) by the screw (8), and then the separation structure product ( 2) Press and fix with the bottom hole drilling die (3). 4. A kind of assembling tool to ensure the concentricity of the ring-up wedge-shaped thread supporting plate nut as claimed in claim 3, it is characterized in that: the separation platform of the bottom hole drilling die (3) is in the shape of a circular ring, and is processed on the separation platform Eight radial vertical ribs are formed, and lightening holes are hollowed out between adjacent vertical ribs to reduce the weight of the bottom hole drilling die (3). 5. The assembly tool for ensuring concentricity of the wedge-shaped threaded support plate nut on the ring as claimed in claim 4, wherein the quick-change drill sleeve (6) comprises a drill sleeve I, a drill sleeve whose specifications are successively increased II, Drill sleeve III, Drill sleeve IV, Drill sleeve V and Drill sleeve VI, are used to control the drilling accuracy of the bottom hole, among which the specifications of the drill sleeve VI are the same as the design drawings. 6. A kind of assembling tool for ensuring the concentricity of the ring-up wedge-shaped thread supporting plate nut as claimed in claim 5, characterized in that: two lifting lugs (5) are provided at the top opening of the bottom hole drilling die (3). ), turn the bottom hole drilling die (3) over using the lifting lugs (5). 7. The assembly tool for ensuring concentricity of the wedge-shaped threaded pallet nut on the ring as claimed in claim 6, characterized in that: quadrant lines are respectively scribed on the large diameter end and the small diameter end of the separation structure product (2) , and at the same time, the quadrant lines are respectively scribed at the openings at both ends of the bottom hole drilling die (3). 8. A method for assembling the concentric wedge-shaped thread supporting plate nut on the ring using the assembling tool of claim 7, characterized in that: comprising the following steps: 1) Position and separate the structural product (2) in section a of the bottom hole drilling die (3); 2) Drilling separation structure products (2) Multiple bottom holes at the small diameter end; 3) Turn over the bottom hole drilling die (3); 4) Positioning and separating the structural product (2) in the b section of the bottom hole drilling die (3); 5) Drilling separation structure products (2) Multiple bottom holes at the large diameter end; 6) Drill the rivet holes on the separation structure product (2); 7) Riveting the wedge threaded pallet nut (1). 9. The assembling method for ensuring the concentricity of the ring-up wedge-shaped threaded support nut as claimed in claim 8, characterized in that: it specifically comprises the following steps: 1) Position and separate the structural product (2) in section a of the bottom hole drilling die (3) With the a section of the bottom hole drilling die (3) facing upwards, put the small diameter end of the separated structure product (2) into the a section of the bottom hole drilling die (3) according to the quadrant line; Use the pressure plate (7) to fix the separation structure product (2) on the a section of the bottom hole drilling die (3); 2) Drilling separation structure products (2) Multiple bottom holes at the small diameter end Install drill sleeves I respectively on a circle of drill holes in section a of the bottom hole drilling die (3), and make bottom holes on the assembly surface of the small diameter end of the separation structure product (2) according to the drill sleeve I; place the bottom hole drilling die ( 3) Replace the drill sleeve I on the bottom hole with the drill sleeve II, and make holes on the basis of the bottom hole according to the drill sleeve II; replace the drill sleeve II on the bottom hole drilling die (3) with the drill sleeve III, press the drill sleeve III first Secondary reaming; replace the drill sleeve III on the bottom hole drilling die (3) with the drill sleeve IV, and press the drill sleeve IV for the second reaming; replace the drill sleeve IV on the bottom hole drilling die (3) with the drill sleeve Ⅴ, press the drill sleeve Ⅴ for the third reaming; replace the drill sleeve V on the bottom hole drilling die (3) with the drill sleeve Ⅵ, and press the drill sleeve Ⅵ for the fourth reaming; The fourth reaming is the final size of the design drawing; 3) Flip the bottom hole drilling die (3) Take out the separated structure product (2) from the section a of the bottom hole drilling die (3), and use the lifting lugs (5) on the bottom hole drilling die (3) to turn the bottom hole drilling die (3) to make the bottom hole drilling die (3). paragraph b of (3) faces upwards; 4) Position and separate the structural product (2) on the b-section of the bottom hole drilling die (3). According to the quadrant line, put the large diameter end of the separation structure product (2) into the b section of the bottom hole drilling die (3); Use screws (8), set screws (9) and pressure blocks (10) to fix the split structure product (2) on the b-section of the bottom hole drilling die (3); 5) Drilling separation structure products (2) Multiple bottom holes at the large diameter end Install a drill sleeve I on a circle of drill holes in the b section of the bottom hole drilling die (3), and make a bottom hole on the assembly surface of the large diameter end of the separation structure product (2) according to the drill sleeve I; place the bottom hole drilling die (3). ), replace the drill sleeve I on the bottom hole with the drill sleeve II, and make holes on the basis of the bottom hole according to the drill sleeve II; replace the drill sleeve II on the bottom hole drilling die (3) with the drill sleeve III, press the drill sleeve III for the first time Reaming; replace the drill sleeve III on the bottom hole drilling die (3) with the drill sleeve IV, and press the drill sleeve IV for the second reaming; replace the drill sleeve IV on the bottom hole drilling die (3) with the drill sleeve V , press the drill sleeve V for the third reaming; replace the drill sleeve V on the bottom hole drilling die (3) with the drill sleeve VI, and press the drill sleeve VI for the fourth reaming; The fourth reaming is the final size of the design drawing; 6) Drill the rivet holes on the separation structure product (2) Take out the separation structure product (2) from the b section of the bottom hole drilling form (3), use the construction screw (12) to fix the drilling formwork (11) on the inner wall of the assembly surface of the separation structure product (2), and pass the drilling formwork (12). The rivet hole on the 11) is penetrated to the assembly surface of the separation structure product (2) to obtain the rivet hole used for riveting the wedge-shaped thread pallet nut (1); 7) Riveted wedge threaded pallet nut (1) The rivet hole on the separation structure product (2) is dimpled, and the wedge threaded pallet nut (1) is riveted by a forward riveting method. 10. A kind of assembling method to ensure the concentricity of the wedge-shaped thread supporting plate nut on the ring as claimed in claim 9, it is characterized in that: in step 1) and step 4), it is ensured to separate the side of the structural product (2) and the bottom hole drilling die (3) The bonding gap between the inner walls is not more than 0.3mm, if it is larger, add equal-thickness gaskets at the 180° orientation.

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