CN109702246B - Assembly tool and method for ensuring concentricity of annular upper wedge-shaped threaded support plate nut - Google Patents
Assembly tool and method for ensuring concentricity of annular upper wedge-shaped threaded support plate nut Download PDFInfo
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- CN109702246B CN109702246B CN201811433372.8A CN201811433372A CN109702246B CN 109702246 B CN109702246 B CN 109702246B CN 201811433372 A CN201811433372 A CN 201811433372A CN 109702246 B CN109702246 B CN 109702246B
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Abstract
The invention relates to the technical field of aerospace assembly, and particularly discloses an assembly tool and an assembly method for ensuring concentricity of annular upper wedge-shaped threaded supporting plate nuts. The assembling method comprises the following steps: 1) positioning a separation structure product at the section a of the bottom hole drilling jig; 2) drilling a plurality of bottom holes at the small end of the product with the separation structure; 3) turning over the bottom hole drilling jig; 4) positioning a separation structure product at the section b of the bottom hole drilling jig; 5) drilling a plurality of bottom holes at the large diameter end of a product with a separation structure; 6) drilling a rivet hole on a product with a separation structure; 7) riveting the wedge-shaped thread supporting plate nut. The invention greatly improves the assembly precision of the annular upper wedge-shaped threaded support plate nut, ensures the production quality of the separation structure product, realizes the smooth butt joint of the separation structure product and other products, and shortens the production period of the separation structure product.
Description
Technical Field
The invention belongs to the technical field of aerospace assembly, and particularly relates to an assembly tool and method for ensuring concentricity of a circular upper wedge-shaped threaded support plate nut.
Background
Threads are one of the main forms of connection in aerospace products, and the reliability requirements for a secure connection do not allow for the possibility of failure, but are difficult to achieve in practical engineering. At present, in order to solve the problem of the product development process, a wedge-shaped thread supporting plate nut is adopted on the separating structure in the circumferential direction to adapt to various complex and harsh environments.
The separating structure is an integral casting machine processing structure and is conical and used for connecting two products with different diameter structures. The product of the separating structure is shown in fig. 1, and the separating structure is used for connecting two shells with different diameters in a bolt connection mode. A plurality of wedge-shaped thread supporting plate nuts are required to be installed upwards respectively in the upper ring and the lower ring. The mounting requirements for the two rings of supporting plate nuts are high in precision, the supporting plate nuts are mounted on the same plane, and all the wedge-shaped threaded supporting plate nuts are concentric with the shell connecting hole. The wedge thread supporting plate nut is a special standard component and is limited by structural influence, and the riveting operation space is small.
The method for assembling the annular butt joint supporting plate nut with the similar structure comprises the following steps:
(1) and when the shell A is machined, the butt joint holes are manufactured in advance by a numerical control machine tool.
(2) And connecting and fixing the shell A and the shell B according to quadrants, and penetrating a butt joint hole into the shell B through a hole prepared in advance on the shell A.
(3) And fixing the support plate nut on the butt joint hole of the shell B by using a screw.
(4) And penetrating the rivet hole to the shell by utilizing the nut hole of the supporting plate.
(5) And riveting the supporting plate nut.
The assembly method has the following disadvantages:
(1) after the shell A is subjected to numerical control hole drilling and the shell B is subjected to through hole drilling, the precision of the shell A hole is poor, and the coordination assembly precision of the two shells is low.
(2) And holes can be manufactured only after two products are connected and fixed together, so that the assembly period is long.
(3) And the separation structure needs to be simultaneously butted with two products with different diameters, so that the operation is complex.
(4) The supporting plate nut is fixed by the screw, and after the supporting plate nut is riveted and assembled, the centripetally is poor.
Disclosure of Invention
The invention aims to provide an assembling tool and method for ensuring concentricity of a ring-direction upper wedge-shaped thread supporting plate nut so as to improve assembling precision of the ring-direction upper wedge-shaped thread supporting plate nut.
The technical scheme of the invention is as follows:
an assembling tool for ensuring concentricity of annular upper wedge-shaped threaded supporting plate nuts comprises a bottom hole drilling jig and a rivet hole drilling jig, and is used for drilling holes in a separation structure product to install a plurality of wedge-shaped threaded supporting plate nuts;
two sides of the wedge-shaped thread supporting plate nut are respectively provided with a rivet hole which is used for assembling the wedge-shaped thread supporting plate nut;
the separation structure product is in a cone cylinder shape, annular assembling surfaces are respectively arranged at the opening of the large diameter end and the opening of the small diameter end of the separation structure product, and bottom holes are drilled on the annular assembling surfaces;
the assembly surfaces at the two ends of the separation structure product are respectively provided with a butt joint platform which is used for fixing with a bottom hole drilling jig;
the bottom hole drilling jig is cylindrical, a transverse separation platform is arranged inside the bottom hole drilling jig, the bottom hole drilling jig is divided into a section a and a section b, and the inner diameter of the section a of the bottom hole drilling jig is larger than that of the section b;
respectively processing a circle of drill holes on the section a side wall and the section b side wall of the bottom hole drill jig for installing a quick-change drill bushing;
when bottom hole drilling is carried out at the opening of the small end of the diameter of the product with the separation structure, the small end of the diameter of the product with the separation structure is inserted into the section a of the bottom hole drilling jig, so that the assembly surface at the opening of the small end of the diameter of the product with the separation structure is aligned with the drilled hole on the section a of the bottom hole drilling jig;
when bottom hole drilling is carried out on the opening of the large-diameter end of the product with the separation structure, the large-diameter end of the product with the separation structure is inserted into the section b of the bottom hole drilling jig, so that the assembly surface of the opening of the large-diameter end of the product with the separation structure is aligned with a drilled hole in the section b of the bottom hole drilling jig;
the rivet hole drilling jig consists of a drilling template and a construction screw and is used for drilling a rivet hole on a product with a separated structure;
the surface radian of the drilling template is matched with the radian of the assembly surface of the product with the separation structure, and the drilling template is provided with a centering hole and a rivet hole which are respectively matched with the sizes of a screw hole and a rivet hole on the wedge-shaped threaded supporting plate nut;
the construction screw comprises a polished rod section and a threaded section, the size of the polished rod section is matched with the size of a bottom hole processed on a separation structure product and the size of a centering hole on the drill plate, and the threaded section can be in threaded connection with a fixed nut;
when the rivet hole drilling on the separation structure product is carried out, the drill plate is tightly attached to the inner wall of the assembly surface of the separation structure product, and the drill plate and the separation structure product are fixedly connected through construction screws.
The pressing plate is clamped on a small-diameter end butt joint platform of the separation structure product, so that the separation structure product and the bottom hole drilling jig are pressed and fixed;
the pressing plate is in a disc shape.
The pressing block is clamped on the large-diameter butt joint platform of the separation structure product, the pressing block is supported by the set screw, and meanwhile, the pressing block is fixed with the separation platform on the bottom hole drilling jig by the screws, so that the separation structure product is tightly pressed and fixed with the bottom hole drilling jig.
The separation platform of the bottom hole drilling jig is in a circular ring shape, eight radial studs are processed on the separation platform, and lightening holes are formed between adjacent studs in a hollowed mode so as to lighten the weight of the bottom hole drilling jig.
The quick-change drill bushing comprises a drill bushing I, a drill bushing II, a drill bushing III, a drill bushing IV, a drill bushing V and a drill bushing VI, wherein the specifications of the drill bushing I, the drill bushing II, the drill bushing III, the drill bushing IV, the drill bushing V and the drill bushing VI are sequentially increased, and the drill bushing VI is used for controlling the drilling precision of a bottom hole, wherein the specifications of the drill bushing VI are the same as the dimensions of a design drawing.
Two lifting lugs are arranged at the opening at the top end of the bottom hole drilling jig, and the bottom hole drilling jig is turned over for use through the lifting lugs.
And respectively scribing quadrant lines at the large diameter end and the small diameter end of the separation structure product, and simultaneously scribing quadrant lines at openings at two ends of the bottom hole drilling jig.
An assembly method for ensuring concentricity of a ring-shaped upper wedge-shaped threaded supporting plate nut comprises the following steps:
1) positioning a separation structure product at the section a of the bottom hole drilling jig;
2) drilling a plurality of bottom holes at the small end of the product with the separation structure;
3) turning over the bottom hole drilling jig;
4) positioning a separation structure product at the section b of the bottom hole drilling jig;
5) drilling a plurality of bottom holes at the large diameter end of a product with a separation structure;
6) drilling a rivet hole on a product with a separation structure;
7) riveting the wedge-shaped thread supporting plate nut.
The method specifically comprises the following steps:
1) product with a-section positioning and separating structure on bottom hole drilling jig
The section a of the bottom hole drilling jig faces upwards, and the small end of the product with the separation structure in the diameter is placed into the section a of the bottom hole drilling jig according to the quadrant line;
fixing the separation structure product on the section a of the bottom hole drilling jig by using a pressing plate;
2) drilling multiple bottom holes at small end of product with separation structure
Respectively installing a drill bushing I on a circle of drill holes at the section a of the bottom hole drill jig, and forming a bottom hole on the assembly surface of the small end of the diameter of the product with the separation structure according to the drill bushing I; replacing a drill bushing I on the bottom hole drilling jig with a drill bushing II, and drilling holes on the basis of the bottom holes according to the drill bushing II; replacing a drill bushing II on the bottom hole drilling jig with a drill bushing III, and reaming for the first time according to the drill bushing III; replacing a drill bushing III on the bottom hole drilling jig with a drill bushing IV, and reaming for the second time according to the drill bushing IV; replacing a drill bushing IV on the bottom hole drilling jig with a drill bushing V, and reaming according to the drill bushing V for the third time; replacing a drill bushing V on the bottom hole drilling jig with a drill bushing VI, and reaming for the fourth time according to the drill bushing VI;
the fourth reaming is the final size of the design drawing;
3) upset bottom outlet jig
Taking out the product with the separation structure from the section a of the bottom hole drilling jig, and turning over the bottom hole drilling jig by using a lifting lug on the bottom hole drilling jig to enable the section b of the bottom hole drilling jig to face upwards;
4) product with b-section positioning and separating structure of bottom hole drilling jig
According to the quadrant line, putting the large diameter end of the product with the separation structure into the section b of the bottom hole drilling jig;
fixing the separation structure product on the section b of the bottom hole drilling jig by using a screw, a set screw and a pressing block;
5) drilling multiple bottom holes at large end of product with separation structure
Installing a drill bushing I on a circle of drill holes at the section b of the bottom hole drill jig, and forming a bottom hole on the assembly surface of the large end of the diameter of the product with the separation structure according to the drill bushing I; replacing a drill bushing I on the bottom hole drilling jig with a drill bushing II, and drilling holes on the basis of the bottom holes according to the drill bushing II; replacing a drill bushing II on the bottom hole drilling jig with a drill bushing III, and reaming for the first time according to the drill bushing III; replacing a drill bushing III on the bottom hole drilling jig with a drill bushing IV, and reaming for the second time according to the drill bushing IV; replacing a drill bushing IV on the bottom hole drilling jig with a drill bushing V, and reaming according to the drill bushing V for the third time; replacing a drill bushing V on the bottom hole drilling jig with a drill bushing VI, and reaming for the fourth time according to the drill bushing VI;
the fourth reaming is the final size of the design drawing;
6) rivet hole on drilling separation structure product
Taking out the separation structure product from the section b of the bottom hole drilling jig, fixing a drilling template on the inner wall of the assembly surface of the separation structure product by using a construction screw, and penetrating a through hole on the assembly surface of the separation structure product through a rivet hole on the drilling template to obtain a rivet hole for riveting the wedge-shaped thread supporting plate nut;
7) riveting wedge-shaped thread supporting plate nut
And (4) scoring a pit at a rivet hole on the product with the separation structure, and riveting the wedge-shaped thread supporting plate nut in a forward riveting mode.
In the step 1) and the step 4), the fit clearance between the side face of the product with the separation structure and the inner wall of the bottom hole drilling jig is not more than 0.3mm, and if the fit clearance is more than 0.3mm, a gasket with the same thickness is added at the position of 180 degrees.
The invention has the following remarkable effects:
(1) the invention greatly improves the assembly precision of the annular upper wedge-shaped threaded support plate nut, ensures the production quality of the separation structure product, realizes the smooth butt joint of the separation structure product and other products, and shortens the production period of the separation structure product.
(2) The successful application of the wedge thread standard component in the circumferential direction can provide technical support for the subsequent test research of similar products.
Drawings
FIG. 1 is a schematic view of a shell in a separated configuration;
FIG. 2 is a schematic view of a wedge thread pallet nut;
FIG. 3 is a schematic structural view of a bottom hole drilling jig separation platform;
FIG. 4 is a schematic view of the use of a bottom hole jig;
fig. 5 is a schematic view of the use of the rivet hole drilling jig.
In the figure: 1-wedge thread pallet nut; 2-isolating the structured product; 3-drilling a bottom hole; 4-rivet holes; 5-lifting lugs; 6-quick changing the drill bushing; 7-pressing a plate; 8-a screw; 9-set screws; 10-briquetting; 11-drilling a template; 12-construction screw.
Detailed Description
The invention is described in further detail below with reference to the figures and the embodiments.
The utility model provides an assembly tool for guarantee annular upper wedge thread layer board nut is concentric, includes bottom hole jig 3 and rivet hole jig for drill hole is in order to install a plurality of wedge thread layer board nuts 1 on separation structure product 2. As shown in fig. 2, the wedge-shaped threaded pallet nut 1 has a rivet hole 4 on each side for use when assembling the wedge-shaped threaded pallet nut 1.
As shown in figure 1, the separation structure product 2 is in a cone cylinder shape, annular assembling surfaces are respectively arranged at the opening of the large diameter end and the opening of the small diameter end, and bottom holes are drilled on the annular assembling surfaces. Quadrant lines are respectively scribed at the large diameter end and the small diameter end of the separation structure product 2. And the assembly surfaces at the two ends of the separation structure product 2 are respectively provided with a butt-joint platform for fixing with the bottom hole drilling jig 3.
As shown in fig. 3 and 4, the bottom hole drilling jig 3 is cylindrical, and quadrant lines are scribed at openings at both ends of the bottom hole drilling jig. And a transverse separation platform is arranged in the bottom hole drilling jig 3 to divide the bottom hole drilling jig 3 into a section a and a section b. The separation platform is in a circular ring shape, eight radial vertical ribs are processed on the separation platform, and lightening holes are formed between the adjacent vertical ribs in a hollowed mode so as to lighten the weight of the bottom hole drilling jig 3. The section a of the bottom hole drilling jig 3 is larger than the section b of the bottom hole drilling jig.
And respectively processing a circle of drilling holes on the side wall of the section a and the side wall of the section b of the bottom hole drilling jig 3 for installing the quick-change drill bushing 6. The quick-change drill bushing 6 comprises a drill bushing I, a drill bushing II, a drill bushing III, a drill bushing IV, a drill bushing V and a drill bushing VI, the specifications of which are sequentially increased, and the drill bushing VI is used for controlling the drilling precision of the bottom hole, wherein the specification of the drill bushing VI is the same as the dimension of a design drawing.
When bottom hole drilling is conducted on the opening of the small end of the diameter of the product 2 with the separation structure, the small end of the diameter of the product 2 with the separation structure is inserted into the section a of the bottom hole drilling jig 3, the pressing plate 7 is clamped on the abutting platform of the small end of the diameter of the product 2 with the separation structure, the product 2 with the bottom hole drilling jig 3 is pressed and fixed, and therefore the assembling surface of the opening of the small end of the diameter of the product 2 with the separation structure is aligned with the drilled hole in the section a of the bottom hole drilling jig 3. The pressing plate 7 is in a disc shape.
When the bottom hole drilling of the opening part of the large diameter end of the separation structure product 2 is carried out, the large diameter end of the separation structure product 2 is inserted into the section b of the bottom hole drilling jig 3, the pressing block 10 is clamped on the butt joint platform of the large diameter end of the separation structure product 2, the pressing block 10 is supported by the set screw 9, meanwhile, the pressing block 10 is fixed with the separation platform on the bottom hole drilling jig 3 through the screw 8, and then the separation structure product 2 is fixedly pressed with the bottom hole drilling jig 3, so that the assembling surface of the opening part of the large diameter end of the separation structure product 2 is centered with the drilled holes on the section b of the bottom hole drilling jig 3.
Two lifting lugs 5 are arranged at the opening at the top end of the bottom hole drilling jig 3, and the bottom hole drilling jig 3 is turned over for use through the lifting lugs 5.
As shown in fig. 5, the rivet hole drilling jig is composed of a drilling template 11 and a construction screw 12, and is used for drilling a rivet hole on the separation structure product 2. The surface radian of the drill jig plate 11 is matched with the radian of the assembly surface of the separation structure product 2, and the drill jig plate 11 is provided with a centering hole and a rivet hole which are respectively matched with the sizes of the screw hole and the rivet hole 4 on the wedge-shaped threaded supporting plate nut 1.
The construction screw 12 comprises a polished rod section and a threaded section, wherein the size of the polished rod section is matched with the size of a bottom hole processed on the separation structure product 2 and the size of a centering hole on the drill plate 11, and the threaded section can be in threaded connection with a fixed nut.
When drilling a rivet hole on the product 2 with the separation structure, the drill plate 11 is tightly attached to the inner wall of the assembly surface of the product 2 with the separation structure, and the drill plate 11 and the product 2 with the separation structure are connected and fixed through the construction screw 12. And (3) through a through hole on the assembly surface of the separation structure product 2 through the rivet hole on the drill plate 11, obtaining a rivet hole for riveting the wedge-shaped thread supporting plate nut 1.
An assembly method for ensuring concentricity of a ring-shaped upper wedge-shaped threaded supporting plate nut comprises the following steps:
1) positioning and separating structure product 2 at section a of bottom hole drilling jig 3
The section a of the bottom hole drilling jig 3 faces upwards, and the small end of the diameter of the product 2 with the separation structure is placed into the section a of the bottom hole drilling jig 3 according to a quadrant line;
ensuring that the fit clearance between the side surface of the product 2 with the separation structure and the inner wall of the bottom hole drilling jig 3 is not more than 0.3mm, and if the fit clearance is more than 0.3mm, adding a gasket with the same thickness at the position of 180 degrees;
the separation structure product 2 is fixed to the section a of the bottom hole jig 3 using the pressing plate 7.
2) Drilling multiple bottom holes at small end of diameter of product 2 with separation structure
Respectively installing a drill bushing I on a circle of drill holes at the section of the bottom hole drill jig 3a, and forming a bottom hole on the assembly surface of the small end of the diameter of the separation structure product 2 according to the drill bushing I; replacing a drill bushing I on the bottom hole drilling jig 3 with a drill bushing II, and drilling holes on the basis of the bottom holes according to the drill bushing II; replacing a drill bushing II on the bottom hole drilling die 3 with a drill bushing III, and reaming for the first time according to the drill bushing III; replacing a drill bushing III on the bottom hole drilling jig 3 with a drill bushing IV, and reaming for the second time according to the drill bushing IV; replacing a drill bushing IV on the bottom hole drilling jig 3 with a drill bushing V, and reaming for the third time according to the drill bushing V; replacing a drill bushing V on the bottom hole drilling jig 3 with a drill bushing VI, and reaming for the fourth time according to the drill bushing VI;
and the fourth reaming is the final size of the design drawing.
3) Upset bottom outlet jig 3
And taking the product 2 with the separation structure out of the section a of the bottom hole drilling jig 3, and turning over the bottom hole drilling jig 3 by utilizing the lifting lug 5 on the bottom hole drilling jig 3 to enable the section b of the bottom hole drilling jig 3 to face upwards.
4) Positioning and separating structure product 2 at section b of bottom hole drilling jig 3
According to the quadrant line, the large-diameter end of the product 2 with the separation structure is placed in the section b of the bottom hole drilling jig 3;
ensuring that the fit clearance between the side surface of the product 2 with the separation structure and the inner wall of the bottom hole drilling jig 3 is not more than 0.3mm, and if the fit clearance is more than 0.3mm, adding a gasket with the same thickness at the position of 180 degrees;
the separation structure product 2 is fixed to the section b of the bottom-hole jig 3 using the screws 8, the set screws 9, and the press block 10.
5) Drilling multiple bottom holes at large end of 2-diameter product with separation structure
Installing a drill bushing I on a circle of drilled holes at the section of the bottom hole drill jig 3b, and manufacturing a bottom hole on the assembly surface of the large end of the diameter of the separation structure product 2 according to the drill bushing I; replacing a drill bushing I on the bottom hole drilling jig 3 with a drill bushing II, and drilling holes on the basis of the bottom holes according to the drill bushing II; replacing a drill bushing II on the bottom hole drilling die 3 with a drill bushing III, and reaming for the first time according to the drill bushing III; replacing a drill bushing III on the bottom hole drilling jig 3 with a drill bushing IV, and reaming for the second time according to the drill bushing IV; replacing a drill bushing IV on the bottom hole drilling jig 3 with a drill bushing V, and reaming for the third time according to the drill bushing V; replacing a drill bushing V on the bottom hole drilling jig 3 with a drill bushing VI, and reaming for the fourth time according to the drill bushing VI;
and the fourth reaming is the final size of the design drawing.
6) Drilling rivet holes in product 2 with separation structure
And taking the separation structure product 2 out of the section b of the bottom hole drilling jig 3, fixing a drilling template 11 on the inner wall of the assembly surface of the separation structure product 2 by using a construction screw 12, and penetrating a through hole on the assembly surface of the separation structure product 2 through the rivet hole on the drilling template 11 to obtain a rivet hole for riveting the wedge-shaped threaded support plate nut 1.
7) Riveting wedge thread layer board nut 1
And (4) scoring a pit at a rivet hole on the separation structure product 2, and riveting the wedge-shaped thread supporting plate nut 1 in a forward riveting mode.
Claims (10)
1. The utility model provides a guarantee to go up concentric erecting tool of wedge-shaped screw thread layer board nut in hoop which characterized in that: the device comprises a bottom hole drilling jig (3) and a rivet hole drilling jig, and is used for drilling holes on a separation structure product (2) to install a plurality of wedge-shaped thread supporting plate nuts (1);
two sides of the wedge-shaped thread supporting plate nut (1) are respectively provided with a rivet hole (4) which is used for assembling the wedge-shaped thread supporting plate nut (1);
the separation structure product (2) is in a cone cylinder shape, annular assembling surfaces are respectively arranged at the opening of the large diameter end and the opening of the small diameter end of the separation structure product, and a bottom hole is drilled on the annular assembling surfaces;
assembling surfaces at two ends of the separation structure product (2) are respectively provided with a butt-joint platform which is used for being fixed with the bottom hole drilling jig (3);
the bottom hole drilling jig (3) is cylindrical, a transverse separation platform is arranged inside the bottom hole drilling jig (3) to divide the bottom hole drilling jig (3) into a section a and a section b, and the inner diameter of the section a of the bottom hole drilling jig (3) is larger than that of the section b;
a circle of drill holes are respectively processed on the section a side wall and the section b side wall of the bottom hole drilling jig (3) and used for installing a quick-change drill bushing (6);
when bottom hole drilling is carried out on the opening of the small end of the diameter of the separation structure product (2), the small end of the diameter of the separation structure product (2) is inserted into the section a of the bottom hole drilling jig (3), so that the assembly surface of the opening of the small end of the diameter of the separation structure product (2) is aligned with the drilled hole on the section a of the bottom hole drilling jig (3);
when bottom hole drilling is carried out on the opening of the large diameter end of the separation structure product (2), the large diameter end of the separation structure product (2) is inserted into the section b of the bottom hole drilling jig (3), so that an assembly surface at the opening of the large diameter end of the separation structure product (2) is aligned with a drilled hole in the section b of the bottom hole drilling jig (3);
the rivet hole drilling jig consists of a drilling template (11) and a construction screw (12) and is used for drilling a rivet hole on the product (2) with the separated structure;
the radian of the surface of the drill plate (11) is matched with the radian of the assembly surface of the product (2) with the separation structure, and the drill plate (11) is provided with a centering hole and a rivet hole which are respectively matched with the sizes of a screw hole and a rivet hole (4) on the wedge-shaped threaded supporting plate nut (1);
the construction screw (12) comprises a polished rod section and a threaded section, the size of the polished rod section is matched with the size of a bottom hole processed on the separation structure product (2) and the size of a centering hole on the drill plate (11), and the threaded section can be in threaded connection with a fixed nut;
when a rivet hole is drilled in the separation structure product (2), the drill plate (11) is tightly attached to the inner wall of the assembly surface of the separation structure product (2), and the drill plate (11) and the separation structure product (2) are connected and fixed through the construction screw (12).
2. The assembly tool of claim 1 for ensuring concentricity of a circumferentially upward wedge threaded pallet nut, wherein: the method also comprises the step of clamping a pressing plate (7) on a small-diameter end butt joint platform of the separation structure product (2) to enable the separation structure product (2) and the bottom hole drilling jig (3) to be pressed and fixed;
the pressing plate (7) is in a disc shape.
3. An assembly tool for ensuring concentricity of a circumferentially upward wedge threaded pallet nut as claimed in claim 2, wherein: the pressing block (10) is clamped on a large-diameter butt joint platform of the separation structure product (2), the pressing block (10) is supported by a set screw (9), the pressing block (10) is fixed with a separation platform on the bottom hole drilling jig (3) by a screw (8), and then the separation structure product (2) and the bottom hole drilling jig (3) are pressed and fixed.
4. An assembly tool for ensuring concentricity of a circumferentially upward wedge threaded pallet nut as claimed in claim 3, wherein: the separating platform of the bottom hole drilling jig (3) is in a circular ring shape, eight radial vertical ribs are processed on the separating platform, and lightening holes are formed between the adjacent vertical ribs in a hollowed mode so as to lighten the weight of the bottom hole drilling jig (3).
5. An assembly tool for ensuring concentricity of a circumferentially upward wedge threaded pallet nut as claimed in claim 4, wherein: the quick-change drill bushing (6) comprises a drill bushing I, a drill bushing II, a drill bushing III, a drill bushing IV, a drill bushing V and a drill bushing VI of which the specifications are increased in sequence, and is used for controlling the drilling precision of the bottom hole, wherein the specification of the drill bushing VI is the same as the dimension of a design drawing.
6. An assembly tool for ensuring concentricity of a circumferentially upward wedge threaded pallet nut as claimed in claim 5, wherein: two lifting lugs (5) are arranged at the opening at the top end of the bottom hole drilling jig (3), and the bottom hole drilling jig (3) is turned over for use through the lifting lugs (5).
7. An assembly tool for ensuring concentricity of a circumferentially upward wedge threaded pallet nut as claimed in claim 6, wherein: quadrant lines are respectively scribed at the large diameter end and the small diameter end of the separation structure product (2), and quadrant lines are respectively scribed at openings at two ends of the bottom hole drilling jig (3).
8. An assembly method for ensuring concentricity of a circumferentially upward wedge-shaped threaded pallet nut using the assembly tool of claim 7, characterized in that: the method comprises the following steps:
1) positioning a separation structure product (2) at the section a of the bottom hole drilling jig (3);
2) drilling a plurality of bottom holes at the small end of the diameter of the product (2) with the separation structure;
3) turning over the bottom hole drilling jig (3);
4) positioning a separation structure product (2) at the section b of the bottom hole drilling jig (3);
5) drilling a plurality of bottom holes at the large end of the product (2) with the separation structure;
6) drilling a rivet hole on the product (2) with the separation structure;
7) riveting a wedge-shaped thread supporting plate nut (1).
9. The assembly method for ensuring concentricity of a circumferentially upward wedge-shaped threaded pallet nut of claim 8, wherein: the method specifically comprises the following steps:
1) a section of the bottom hole drilling mould (3) is positioned and separated to form a structure product (2)
The section a of the bottom hole drilling jig (3) faces upwards, and the small end of the diameter of the separation structure product (2) is placed into the section a of the bottom hole drilling jig (3) according to a quadrant line;
fixing the separation structure product (2) on the section a of the bottom hole drilling jig (3) by using a pressing plate (7);
2) drilling a plurality of bottom holes at small ends of the diameter of a product (2) with a separation structure
Respectively installing a drill bushing I on a circle of drill holes at the section a of the bottom hole drill jig (3), and forming a bottom hole on the assembly surface of the small end with the diameter of the product (2) with the separation structure according to the drill bushing I; replacing a drill bushing I on the bottom hole drilling jig (3) with a drill bushing II, and drilling holes on the basis of the bottom holes according to the drill bushing II; replacing a drill bushing II on the bottom hole drill jig (3) with a drill bushing III, and reaming for the first time according to the drill bushing III; replacing a drill bushing III on the bottom hole drilling jig (3) with a drill bushing IV, and reaming for the second time according to the drill bushing IV; replacing a drill bushing IV on the bottom hole drilling jig (3) with a drill bushing V, and reaming the drill bushing V for the third time; replacing a drill bushing V on the bottom hole drilling jig (3) with a drill bushing VI, and reaming for the fourth time according to the drill bushing VI;
the fourth reaming is the final size of the design drawing;
3) turning bottom hole drill jig (3)
Taking out the product (2) with the separation structure from the section a of the bottom hole drilling jig (3), and turning over the bottom hole drilling jig (3) by utilizing a lifting lug (5) on the bottom hole drilling jig (3) to enable the section b of the bottom hole drilling jig (3) to face upwards;
4) b section of the bottom hole drilling mould (3) is positioned and separated to form a structure product (2)
According to a quadrant line, putting the large-diameter end of the product (2) with the separation structure into a section b of the bottom hole drilling jig (3);
fixing the separation structure product (2) on the section b of the bottom hole drilling jig (3) by using a screw (8), a set screw (9) and a pressing block (10);
5) drilling a plurality of bottom holes at the large end of the product (2) with a separation structure
Installing a drill bushing I on a circle of drill holes at the section b of the bottom hole drill jig (3), and forming a bottom hole on the assembly surface of the large end with the diameter of the product (2) with the separation structure according to the drill bushing I; replacing a drill bushing I on the bottom hole drilling jig (3) with a drill bushing II, and drilling holes on the basis of the bottom holes according to the drill bushing II; replacing a drill bushing II on the bottom hole drill jig (3) with a drill bushing III, and reaming for the first time according to the drill bushing III; replacing a drill bushing III on the bottom hole drilling jig (3) with a drill bushing IV, and reaming for the second time according to the drill bushing IV; replacing a drill bushing IV on the bottom hole drilling jig (3) with a drill bushing V, and reaming the drill bushing V for the third time; replacing a drill bushing V on the bottom hole drilling jig (3) with a drill bushing VI, and reaming for the fourth time according to the drill bushing VI;
the fourth reaming is the final size of the design drawing;
6) rivet hole drilled on product (2) with separation structure
Taking out the separation structure product (2) from the section b of the bottom hole drilling jig (3), fixing a drilling template (11) on the inner wall of the assembly surface of the separation structure product (2) by using a construction screw (12), and penetrating a through hole on the assembly surface of the separation structure product (2) through a rivet hole on the drilling template (11) to obtain a rivet hole for riveting the wedge-shaped thread supporting plate nut (1);
7) riveting wedge thread splint nut (1)
And (3) scoring a pit at a rivet hole on the product (2) with the separation structure, and riveting the wedge-shaped thread supporting plate nut (1) in a forward riveting mode.
10. The assembly method of claim 9, wherein the method comprises the steps of: in the steps 1) and 4), ensuring that the joint clearance between the side surface of the separation structure product (2) and the inner wall of the bottom hole drilling jig (3) is not more than 0.3mm, and adding a gasket with the same thickness at the position of 180 degrees if the joint clearance is larger than 0.3 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811433372.8A CN109702246B (en) | 2018-11-28 | 2018-11-28 | Assembly tool and method for ensuring concentricity of annular upper wedge-shaped threaded support plate nut |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811433372.8A CN109702246B (en) | 2018-11-28 | 2018-11-28 | Assembly tool and method for ensuring concentricity of annular upper wedge-shaped threaded support plate nut |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109702246A CN109702246A (en) | 2019-05-03 |
| CN109702246B true CN109702246B (en) | 2020-06-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201811433372.8A Active CN109702246B (en) | 2018-11-28 | 2018-11-28 | Assembly tool and method for ensuring concentricity of annular upper wedge-shaped threaded support plate nut |
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| CN (1) | CN109702246B (en) |
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| DE202017003621U1 (en) * | 2017-07-10 | 2017-08-13 | Optocomm Gmbh | Portable guiding and insertion aid for turning and cutting tools |
| CN107552844A (en) * | 2017-09-04 | 2018-01-09 | 江西洪都航空工业集团有限责任公司 | A kind of plate nut pad hole drilling die |
| CN206882853U (en) * | 2017-04-27 | 2018-01-16 | 沈阳飞机工业（集团）有限公司 | A kind of novel supporting plate nut drill jig |
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|---|---|---|---|---|
| CN104162700A (en) * | 2014-09-04 | 2014-11-26 | 山东汇丰铸造科技股份有限公司 | Drilling jig used for drilling winding drum |
| CN204075313U (en) * | 2014-09-20 | 2015-01-07 | 河南省黄河防爆起重机有限公司 | A kind of used in hoisting of hoist chassis lid punching tooling |
| WO2017037589A1 (en) * | 2015-08-28 | 2017-03-09 | Fellrock Developments Limited | A drilling jig device |
| CN206882853U (en) * | 2017-04-27 | 2018-01-16 | 沈阳飞机工业（集团）有限公司 | A kind of novel supporting plate nut drill jig |
| DE202017003621U1 (en) * | 2017-07-10 | 2017-08-13 | Optocomm Gmbh | Portable guiding and insertion aid for turning and cutting tools |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN109702246A (en) | 2019-05-03 |
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