Auxiliary tool for cementing end face of composite insulator

Abstract

The utility model discloses an auxiliary tool for cementing the end face of a composite insulator. The auxiliary tool comprises a structural support and an assembly plate frame. The assembly plate frame is provided with a binding face, and a high-temperature-resistant soft liner is preformed on the binding face. A heating unit assembly part is formed in the middle position of the fitting surface of the assembly plate frame; a flange assembling hole site is formed in the outer ring surface, corresponding to the heating unit assembling part, of the assembling plate frame, and the flange assembling hole site is matched with a flange metal piece to be assembled; an alignment observation window is further formed in the annular face between the heating unit assembling part and the flange assembling hole site, and the alignment observation window stretches across a cementing area of the composite insulator winding pipe and the flange metal piece to be assembled in the radial direction of the corresponding flange assembling hole site. The device can be widely applied to the end face cementing operation of the composite insulator, has the advantages of being simple in structure, convenient to operate, high in applicability and the like, and remarkably improves the assembling precision and efficiency of the end face cementing of the composite insulator.

Description

Technical Field

[0001] This utility model relates to the field of composite insulator assembly fixtures in power transmission and transformation equipment, and specifically to an auxiliary fixture for adhesive bonding of the end faces of composite insulators. Background Technology

[0002] Insulators are indispensable components in power systems, their primary function being to support and insulate conductors while bearing mechanical loads and providing electrical insulation. Among the many types of insulators, porcelain insulators and composite insulators are two common forms. Although they differ in materials and structure, they both serve the same basic function: the adhesive bonding of flanged metal fittings at the insulator's end faces to ensure electrical isolation and mechanical support between the insulator and the conductor or grounding structure.

[0003] In recent years, composite insulators have gradually replaced porcelain insulators and have seen rapid development due to their material and structural characteristics, consisting of glass fiber reinforced plastic (FRP) core rods and silicone rubber sheds. However, composite insulators require high-quality end-face bonding during the assembly process. Furthermore, technological advancements have raised the standards for the electrical and mechanical performance of porcelain bushings in power transmission and transformation systems, demanding higher concentricity and parallelism in the assembly of the porcelain bushing body and the flange metal parts. Currently, the bonding of flange metal parts for medium and large-sized porcelain bushings relies mainly on manual experience, lacking dedicated positioning and auxiliary tooling, resulting in low assembly efficiency and unsatisfactory results.

[0004] Therefore, in order to meet the high requirements for assembly precision, especially in terms of electrical and mechanical performance, the assembly technology of composite insulators needs to be further improved to adapt to the needs of continuous large-scale production. Utility Model Content

[0005] The technical problem solved by this utility model is to provide an auxiliary tooling for adhesive bonding of the end face of composite insulators, which is used to perform auxiliary adhesive bonding of the end face of the flange metal parts of horizontally placed composite insulators, so as to overcome the shortcomings in the above-mentioned background art.

[0006] The technical problem solved by this utility model is achieved by the following technical solution:

[0007] An auxiliary tooling for adhesive bonding of the end faces of composite insulators includes a structural support and an assembly plate frame formed on the structural support.

[0008] The assembly plate frame has a mating surface perpendicular to the axis of the composite insulator to be assembled, and a high-temperature resistant soft pad is pre-formed on the mating surface.

[0009] The assembly plate has a heating unit assembly part formed in the middle of the mating surface, which is formed on the extension line of the axis of the composite insulator to be assembled; the assembly plate has a flange assembly hole formed on the outer ring surface of the corresponding heating unit assembly part, which matches the flange metal part to be assembled; an alignment observation window is also formed on the ring surface between the heating unit assembly part and the flange assembly hole, which spans the adhesive area of ​​the composite insulator winding tube and the flange metal part to be assembled in the radial direction of the corresponding flange assembly hole.

[0010] As a further limitation, the structural support includes a base, the bottom of which is mounted on a horizontal platform through an oblong hole. A height adjustment device is provided on the base. The assembly allowance provided by the oblong hole and the height adjustment device can realize the precise positioning and height fine adjustment of the assembly plate on the platform, ensuring the concentricity and parallelism of the insulator end face and the flange metal parts, thereby improving assembly accuracy and efficiency.

[0011] As a further limitation, both the structural support and the assembly plate frame are steel plate structures, which together form an L-shaped rigid support, and the rigid support is structurally reinforced between the two right-angled sides by triangular ribs.

[0012] As a further limitation, the assembly plate frame is also formed with a guide structure extending along the axis of the composite insulator.

[0013] As a further limitation, the surface finish of the mating surface is in the range of Ra0.8~1.6 to ensure a tight fit with the end face of the insulator, thereby reducing assembly errors and improving the stability and reliability of the assembly.

[0014] As a further limitation, the high-temperature resistant soft pad is preferably made of inorganic high-temperature resistant metal fiber forming felt structure, and preferably made of one or more of asbestos, rock wool, glass wool, ceramic fiber, and aluminum silicate fiber.

[0015] As a further limitation, the thickness of the high-temperature resistant soft pad is 3~8mm, and it is a replaceable structure.

[0016] As a further limitation, the heating unit assembled in the heating unit assembly part is a rod-type heating unit or a plate-type heating unit.

[0017] As a further definition, the flange assembly hole positions include multiple sets of concentrically arranged assembly hole units.

[0018] As a further definition, the hole unit of the flange assembly hole is a waist-shaped hole extending radially.

[0019] As a further limitation, the alignment observation windows are fan-shaped, numbered 3 to 5, and are evenly distributed on the annular surface of the adhesive area between the composite insulator winding tube and the metal part of the flange to be assembled; and a spacing of 1 / 10 to 1 / 8 of the annular circumference is reserved between adjacent alignment observation windows.

[0020] Beneficial Effects: This utility model's auxiliary tooling for adhesive bonding of composite insulator end faces has advantages such as simple structure, convenient operation, and strong applicability. Through the design of the structural support and assembly plate frame, it achieves stable support and precise positioning of the horizontally placed composite insulator. The design of the heating unit assembly section and flange assembly holes ensures accurate alignment of the heating unit and flange metal parts, improving the concentricity and parallelism of the assembly. This significantly enhances the assembly accuracy and efficiency of adhesive bonding of the composite insulator end faces, ensuring a tight fit with the insulator end faces and effectively reducing assembly errors. Furthermore, the alignment observation window allows operators to clearly monitor the bonding area, ensuring concentric assembly of the composite insulator winding tube and the flange metal parts to be assembled during the assembly process. It has the advantages of convenient use and accurate positioning, improving bonding accuracy and product assembly consistency. Attached Figure Description

[0021] Figure 1 This is a side view of a preferred embodiment of the present invention.

[0022] Figure 2 for Figure 1 A schematic diagram of the AA section from a visual perspective.

[0023] The components include: 1. Structural support; 2. Triangular rib plate; 3. Assembly plate frame; 4. High-temperature resistant soft gasket; 5. Threaded fittings; 6. Flange metal parts; 7. Composite insulator spiral wound tube; 8. Flange assembly hole; 9. Alignment observation window; 10. Heating unit assembly part; 11. Sliding guide shaft hole. Detailed Implementation

[0024] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the following description, in conjunction with specific illustrations, further elaborates on this utility model.

[0025] See Figure 1 , Figure 2 A preferred embodiment of an auxiliary tooling for adhesive bonding of the end face of a composite insulator. In this embodiment, the auxiliary tooling is used to perform alignment adhesive bonding of the flange metal part 6 on the end face of the composite insulator winding tube 7 on a composite insulator placed flat on an adhesive bonding device.

[0026] The corresponding composite insulators are flatly fixed and assembled on the gluing equipment using a fixing device. After fixing and assembly, the insulator winding tube 7 of the composite insulator is aligned and set on the opposite side of the auxiliary fixture as shown in the figure. The corresponding flange metal part 6 is pre-fixed on the auxiliary fixture. After alignment and calibration, glue is applied to the bonding surface. Then, the auxiliary fixture and the insulator winding tube 7 fixedly assembled on the gluing equipment are driven to move relative to each other, so that the insulator winding tube 7 and the flange metal part 6 are aligned as shown in the figure. Figure 1 The pattern shown completes the concentric assembly, and the adhesive bonding is completed under the action of heating and pressure.

[0027] To achieve the above functions, the corresponding auxiliary tooling should include a structural support 1 for structural support and stability maintenance, and an assembly plate frame 3 for assembling and fixing the flange metal parts 6. In different embodiments, the structural support 1 and the assembly plate frame 3 can have different structural forms:

[0028] In one embodiment, the structural support 1 includes a base, the bottom of which is mounted on a horizontal platform via an oblong hole. This horizontal platform can be an independent platform or a structural component on a gluing device. Furthermore, the base is equipped with a height adjustment device. The oblong hole design not only provides leeway for assembly but also, in conjunction with the height adjustment device, ensures precise positioning and fine-tuning of the assembly plate on the platform. This design is crucial for improving the concentricity and parallelism between the insulator end face and the flange metal parts, thereby enhancing assembly accuracy and efficiency.

[0029] In such Figure 1 , Figure 2 In the illustrated embodiment, the structural support 1 and the assembly plate frame 3 adopt a cost-controlled structural design. Both the structural support 1 and the assembly plate frame 3 are steel plate structures, which are welded together to form an L-shaped rigid support. This design is not only structurally stable but also low in cost and easy to manufacture. Furthermore, triangular ribs 2 are used to reinforce the structure between the right-angled sides of the back side of the assembly plate frame 3 and the corresponding sides of the structural support 1, further improving the overall strength and stability of the structure.

[0030] The side of the assembly plate frame 3 (corresponding to) Figure 1The right side of the mounting plate 3 is the bonding surface. In the design of the mounting plate 3, to ensure a tight fit between the mounting plate 3 and the end face of the composite insulator winding tube 7 on the bonding surface, reduce assembly errors, and improve assembly stability and reliability, the surface finish of the bonding surface is finely processed and controlled within the range of Ra 0.8~1.6. Furthermore, a high-temperature resistant soft pad 4 is pre-formed on the bonding surface. This pad adopts a felt pad structure formed from inorganic high-temperature resistant metal fibers. In different embodiments, its forming material can be one or more of asbestos, rock wool, glass wool, ceramic fiber, and aluminum silicate fiber, to ensure good high-temperature resistance and stability while maintaining good interfacial performance on the bonding surface.

[0031] In this embodiment, the thickness of the high-temperature resistant soft pad 4 is 3~8mm, and it is designed as a replaceable structure, which facilitates replacement and maintenance after the high-temperature resistant soft pad 4 is damaged or fails.

[0032] A heating unit assembly part 10 is formed on the assembly plate frame 3. This heating unit assembly part 10 is located in the middle of the mating surface of the assembly plate frame 3 and is formed on the extended axis of the composite insulator to be assembled. It is used to assemble the heating unit. The heating unit can be selected according to specific needs, such as a rod-type heating unit or a plate-type heating unit, to meet different heating requirements. When a rod-type heating unit is used, its base is fixed by the heating unit assembly part 10, while its end extends into the cavity of the composite insulator winding tube 7 for heating, ensuring uniform heating of the adhesive area and improving adhesive quality. When a plate-type heating unit is used, the heating unit covers the adhesive area of ​​the end face of the composite insulator winding tube 7 on the mating surface, heating the adhesive area through thermal radiation, which also ensures uniform heating and adhesive quality. At the same time, the design of the heating unit assembly part 10 facilitates the disassembly and replacement of the heating unit, improving the flexibility and practicality of the tooling.

[0033] The assembly plate frame 3 has flange assembly holes 8 formed on the outer ring surface of the corresponding heating unit assembly part 10. The structural holes of the flange assembly holes 8 match the flange metal parts 6 to be assembled, ensuring that the flange metal parts can be accurately aligned and fixed on the assembly plate frame. In this embodiment, each hole of the flange assembly holes 8 is an oblong hole. This hole structure allows the flange metal parts 6 to have a certain assembly allowance during the assembly process, making it easy for operators to fine-tune the flange metal parts 6 and ensure its concentric assembly with the composite insulator winding tube 7. On the other hand, it also allows a single auxiliary tooling to match flange metal parts 6 of different sizes and corresponding composite insulator winding tubes 7, making the tooling highly versatile and flexible.

[0034] In another embodiment, the flange assembly hole 8 can also be set as multiple sets of concentric assembly hole units. This design can also improve the versatility and flexibility of the tooling, and at the same time, it can more accurately match flange metal parts and composite insulator winding tubes of different sizes.

[0035] To improve observation convenience during assembly and ensure operators can clearly monitor the bonding area, the alignment observation windows 9 are particularly important. In this embodiment, the alignment observation windows 9 are fan-shaped, with four windows evenly distributed on the annular surface of the bonding area between the composite insulator winding tube 7 and the flange metal part 6 to be assembled. This ensures that operators can comprehensively and clearly observe the bonding area, adjust the assembly position in a timely manner, and guarantee assembly accuracy and consistency. A spacing of 1 / 10 of the annular circumference is reserved between adjacent alignment observation windows 9 to provide sufficient support for the end faces of the flange metal part 6 and the composite insulator winding tube 7 to abut against each other.

[0036] In addition, in this embodiment, the assembly plate frame 3 is provided with a sliding guide shaft hole 11 on each of the upper two sides of the plate body. The sliding guide shaft hole 11 can serve as a guide structure. After the guide rod is inserted, it guides the auxiliary tooling and the insulator winding tube 7 on the gluing equipment to move smoothly relative to each other in the horizontal direction. This ensures that during the gluing operation, the assembly plate frame 3 can be accurately aligned with the composite insulator winding tube 7 along the preset path, thereby improving the stability of the tooling operation and the accuracy and efficiency of the gluing assembly process.

[0037] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. An auxiliary tooling for adhesive bonding of the end faces of composite insulators, characterized in that, This includes structural supports and assembly plates formed on the structural supports; The assembly plate frame has a mating surface perpendicular to the axis of the composite insulator to be assembled, and a high-temperature resistant soft pad is pre-formed on the mating surface. The assembly plate has a heating unit assembly part formed in the middle of the mating surface, which is formed on the extension line of the axis of the composite insulator to be assembled; the assembly plate has a flange assembly hole formed on the outer ring surface of the corresponding heating unit assembly part, which matches the flange metal part to be assembled; an alignment observation window is also formed on the ring surface between the heating unit assembly part and the flange assembly hole, which spans the adhesive area of ​​the composite insulator winding tube and the flange metal part to be assembled in the radial direction of the corresponding flange assembly hole.

2. The auxiliary tooling for adhesive bonding of composite insulator end faces according to claim 1, characterized in that, The structural support includes a base, the bottom of which is mounted on a horizontal platform through a waist-shaped hole, and a height adjustment device is provided on the base.

3. The auxiliary tooling for adhesive bonding of composite insulator end faces according to claim 1, characterized in that, Both the structural support and the assembly plate frame are made of steel plate structure, together forming an L-shaped rigid support, and the rigid support is reinforced by triangular ribs between the two right-angled sides.

4. The auxiliary tooling for adhesive bonding of composite insulator end faces according to claim 1, characterized in that, The assembly plate frame also has a guide structure that extends along the axis of the composite insulator.

5. The auxiliary tooling for adhesive bonding of composite insulator end faces according to claim 1, characterized in that, The surface finish of the bonding surface ranges from Ra0.8 to 1.

6.

6. The auxiliary tooling for adhesive bonding of composite insulator end faces according to claim 1, characterized in that, The high-temperature resistant soft pad is a felt pad structure made of one or more of the following: asbestos, rock wool, glass wool, ceramic fiber, and aluminum silicate fiber.

7. The auxiliary tooling for adhesive bonding of composite insulator end faces according to claim 1, characterized in that, The high-temperature resistant soft pad has a thickness of 3~8mm and is a replaceable structure.

8. The auxiliary tooling for adhesive bonding of composite insulator end faces according to claim 1, characterized in that, The flange assembly holes include multiple sets of concentrically arranged assembly hole units.

9. The auxiliary tooling for adhesive bonding of composite insulator end faces according to claim 1, characterized in that, The flange assembly hole unit is a waist-shaped hole extending radially.

10. The auxiliary tooling for adhesive bonding of composite insulator end faces according to claim 1, characterized in that, The alignment observation windows are fan-shaped, numbering 3 to 5, and are evenly distributed on the annular surface of the adhesive area between the composite insulator winding tube and the metal part of the flange to be assembled; and a spacing of 1 / 10 to 1 / 8 of the annular circumference is reserved between adjacent alignment observation windows.

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