CN204270763U - A pot-type insulator casting shaping device - Google Patents

Abstract

The utility model relates to a kind of disc insulator cast shaping device.A kind of disc insulator cast shaping device, the intermediate support comprising base for supporting and be fixedly installed relative to base for supporting, base for supporting has the outer supporting surface that turns edge for supporting the datum level on the bottom surface turned edge outside disc insulator, intermediate support has supporting surface at the bottom of the basin of medial surface at the bottom of the basin for supporting disc insulator, turns edge outward between supporting surface to supporting surface at the bottom of basin and has for the vertical range equal with the design pitch of medial surface at the bottom of the bottom surface turned edge outside corresponding disc insulator to basin; Disc insulator cast shaping device also comprises for by the hold down gag be pressed on base for supporting that turns edge outside disc insulator.During use, shaping device can rely on intermediate support and hold down gag to ensure the stability of correspondingly-sized in disc insulator solidification process, prevent from deforming in disc insulator solidification process after demoulding, be conducive to the rate of reducing the number of rejects and seconds, improve homogeneity of product and production efficiency.

Description

A pot-type insulator casting shaping device

technical field

The utility model relates to a device for setting the shape of a basin-type insulator casting.

Background technique

The pot insulator is a common part used in high-voltage equipment. It is often assembled between two high-voltage switch cylinders during use, and the sealing performance of the joint with the high-voltage switch cylinder needs to be strictly guaranteed. Therefore, , the shape and size of the pot insulator will have a great impact on the yield and performance of the pot insulator.

Existing pot insulators, such as the pot insulator disclosed in the Chinese patent with application number 201310026441.4 and application publication number CN 103456431 A, adopt casting molding, including a horn-shaped casting and a middle insert fixed in the center of the casting. The outer edge of the casting has an eversion edge, forming a basin-shaped or disc-shaped structure. The two axial sides of the valgus edge of the casting are respectively provided with sealing ring grooves. When assembling, the two sides of the basin insulator are pressed between the valgus edges of the two high-voltage switch cylinders, and the sealing ring is set In the sealing ring groove, the inside of the high-voltage switch cylinder is isolated from the outside world. When using the casting process to manufacture pot insulators, it is necessary to ensure the distance from the reference plane on the bottom surface of the valgus to the inner side of the pot insulator and the overall shape of the pot insulator to ensure the sealing effect and meet the assembly requirements.

However, due to the influence of internal stress, the castings are easily deformed during the curing process after demolding, causing the overall distortion of the pot insulator or changes in size, resulting in low scrap rate and poor product consistency.

Utility model content

The purpose of the utility model is to provide a pot-type insulator casting shaping device, which can effectively prevent the pot-type insulator from being deformed during the curing process after demoulding.

The technical solution adopted by a pot-type insulator casting part setting device in the utility model is: a pot-type insulator casting part setting device, comprising a support base and an intermediate support fixedly arranged relative to the support base, the support base There is an everted edge support surface for supporting a reference plane on the bottom surface of the everted edge of the pot insulator, the intermediate support has a pot bottom support surface for supporting the inner side of the pot bottom of the pot insulator, the everted edge There is a vertical distance between the support surface and the support surface of the basin bottom, which is equal to the designed distance from the bottom surface of the corresponding basin-type insulator to the inner surface of the basin bottom; the casting device for basin-type insulators also includes The pressing device is used to press the outer edge of the basin type insulator to the support base.

The pressing device includes an annular pressing plate for being sleeved on the basin-type insulator and quick clamps arranged uniformly around the axis of the annular pressing plate for pressing the annular pressing plate onto the basin-type insulator. The annular pressing plate has a An annular pressing surface that is press-fitted with the turned-out edge of the basin-type insulator.

The base is fixed with a guide mechanism for the axial guide movement of the annular pressure plate along the middle support.

The annular positioning plate is provided with a guide pin hole, and the guide mechanism is a guide pin fixed on the base.

The compression output end of the quick clamp is provided with an elastic compression mechanism.

The elastic compression mechanism is composed of a spring guide rod fixed on the compression cantilever of the elastic compression mechanism, a compression spring sleeved on the spring guide rod and a compression head arranged at the end of the compression spring.

The intermediate support is fixed on the base by screws.

The base is a plate structure, and base legs are fixed under the base.

The utility model adopts the above-mentioned technical scheme, the supporting base on the pot-type insulator casting part setting device has an everted edge support surface, which can be used to support the reference plane on the bottom surface of the pot-type insulator’s everted edge, and the middle support has a basin bottom support The surface can be used to support the inner surface of the basin bottom of the basin type insulator, and there is a distance between the inner surface of the inner surface of the inner surface of the inner surface of the inner surface of the inner surface of the basin bottom and the inner surface of the inner surface of the inner surface of the basin bottom. The vertical distances are designed to be equally spaced, and the pot-type insulator casting shaping device also includes a pressing device for pressing the outer edge of the pot-type insulator onto the support base, which can rely on the middle support and the pressing device during use. The device ensures the stability of the corresponding dimensions during the curing process of the pot insulator, prevents the deformation of the pot insulator during the curing process after demoulding, and is conducive to reducing the scrap rate and improving product consistency and production efficiency.

Description of drawings

Fig. 1 is a structural schematic diagram of an embodiment of a device for shaping pot-type insulator castings.

The names corresponding to the reference signs in the figure are: 10-support base, 11-valgus along the support surface, 12-base leg, 20-middle support, 21-pelvic floor support surface, 30-ring platen, 31- Guide pin, 40-quick clamp bracket, 41-quick clamp, 42-compression cantilever, 43-spring guide rod, 44-compression spring, 45-compression head, 50-pot insulator, 51-intermediate insert, 52-casting, 53-valgus edge, 54-reference surface, 55-basin bottom support surface.

Detailed ways

An embodiment of a basin-type insulator casting part shaping device of the utility model is shown in FIG. The casting 52 of the basin-type insulator casting includes a support base 10 with a plate-shaped structure, an intermediate support 20 vertically fixed in the middle of the support base 10, a quick clamp bracket 40 fixed to the side end of the support base 10 by screws, a fixed The quick clamp 41 on the quick clamp bracket 40 and the annular pressure plate 30 used to press and support the everted edge 53 of the pot insulator 50 .

Wherein the bottom of support base 10 is fixed with base support leg 12, is convenient to carry, and support base 10 is provided with the step support surface corresponding to the bottom surface contour of the valgus edge 53 of basin type insulator 50, and the step support surface and valgus edge 53 bottom surface The portion corresponding to the datum plane 54 on the top constitutes the everted edge support surface 11 for supporting the datum plane 54 of the pot insulator 50 . The middle column is fixed on the support base 10 by screws, and the top of the support plate is provided with a support plate corresponding to the inner end surface of the middle insert 51 on the basin insulator 50, and the top surface of the support plate constitutes the inner surface of the basin bottom for supporting the basin insulator 50 The pelvic bottom support surface 55 of. The vertical distance between the valgus edge support surface 11 and the basin bottom support surface 55 is equal to the design distance L from the bottom surface of the valgus edge 53 of the corresponding basin insulator 50 to the inner surface of the basin bottom, which can ensure that the design distance L is maintained during the curing process. constant.

The middle part of the annular pressure plate 30 has a central hole for avoiding the side basin wall of the basin insulator 50 , and can be sleeved on the basin insulator 50 . The outer diameter of the annular pressure plate 30 is larger than the outer diameter of the pot insulator 50, and its lower surface has an annular pressing surface for pressing and fitting with the everted edge 53 of the pot insulator 50, and the outer diameter of the lower surface exceeds the outer diameter of the pot insulator 50. Parts of the insulator 50 are provided with holes for guide pins 31 , corresponding guide pins 31 are fixed on the support base, and the axes of the guide pins 31 are perpendicular to the support base. To facilitate the insertion of the guide pin 31 into the hole of the guide pin 31 , the top of the guide pin 31 has a tapered guide section. Setting the guide pin 31 can ensure the pressing direction of the annular pressing plate 30 , can evenly compress the everted edge 53 of the pot insulator 50 , and avoid twisting and deformation of the everted edge 53 .

Quick clamp 41 adopts the quick compression clamp commonly used in the prior art, and its form has multiple, and the compression cantilever 42 of quick clamp 41 in the present embodiment is provided with elastic compression mechanism, and elastic compression mechanism is fixed on pressure The spring guide rod 43 on the tight cantilever 42, the compression spring 44 sleeved on the spring guide rod 43 and the compression head 45 arranged at the end of the compression spring 44 are formed, which can realize elastic compression and effectively ensure the setting effect. When the quick clamp 41 is loosened, the annular pressure plate 30 can be removed from the guide pin 31, which is convenient for taking and placing the pot insulator 50 and is easy to use.

When in use, after the cast basin-type insulator 50 is released from the mold, the quick clamp 41 is released, and the annular pressure plate 30 is taken out, and the casting 52 of the basin-type insulator 50 is placed on the support base 10, and the annular pressure plate 30 is guided by the guide column, and placed On the pot insulator 50 and make its annular pressing surface press the top of the valgus edge 53 of the pot insulator 50; Casting eversion along the axial sides of 53 will not be distorted and deformed. Since the middle support 20 supports the upper part of the basin-type insulator 50, deformation of the upper part can be avoided, and changes in the design distance L can be avoided at the same time. After the pot insulator 50 is solidified, loosen the quick clamp 41 and remove the annular pressure plate 30 to remove the formed pot insulator 50. During the process, the positioning device can well prevent the pot insulator 50 from being deformed. , ensure the quality requirements, improve the yield rate, and adopt the form of quick fixture 41 for easy operation and high working efficiency.

In the above embodiments, the supporting base 10 adopts a plate-shaped structure, and the pressing device adopts an annular pressing plate 30 and a quick clamp 41 driven by hydraulic pressure and capable of elastic pressing. In other embodiments of the present utility model, the support base 10 can also be replaced with other forms, such as an annular base fixed on a correspondingly provided platform, at this time, the intermediate support 20 can be fixed on the platform to realize the connection with the support base 10. It is relatively fixed, and the pressing device can also be replaced with other forms, for example, only a plurality of quick clamps 41 are used to directly press the everted edge 53 of the pot insulator 50 by means of the quick clamps 41 . In addition, the guide pin 31 used to form the guide mechanism in the above-mentioned embodiments is an optional structure, and can also be omitted in other embodiments, or replaced with other guide methods, for example, guide holes are set on the support base 10, and in the ring Corresponding guide columns are arranged on the pressing plate 30 . Furthermore, the quick clamp 41 can also be replaced by other forms in the prior art, as long as it can realize pressing the everted edge 53 of the pot insulator 50 onto the support base 10 .

Claims (8)

1. A pot-type insulator casting shaping device, characterized in that: it includes a support base and an intermediate support fixedly arranged relative to the support base, and the support base has a bottom surface for supporting the pot-type insulator valgus edge The valgus edge support surface of the reference plane, the intermediate support has a basin bottom support surface for supporting the inner surface of the basin bottom of the basin type insulator, the valgus edge support surface and the basin bottom support surface have a It is used for a vertical distance equal to the designed spacing from the bottom surface of the corresponding pot-type insulator to the inner side of the pot bottom; the pot-type insulator casting shaping device also includes a function for pressing the pot-type insulator against the pot-type insulator. Hold down device on support base. 2. A pot-type insulator casting shaping device according to claim 1, characterized in that: the pressing device includes a ring-shaped pressing plate for being sleeved on the pot-type insulator and uniformly distributed around the axis of the ring-shaped pressing plate A quick clamp for pressing an annular pressing plate onto a pot insulator, the annular pressing plate having an annular pressing surface for press fitting with an everted edge of the pot insulator. 3. A pot-type insulator casting shaping device according to claim 2, characterized in that: said base is fixed with a guide mechanism for the annular pressure plate to guide, move and assemble axially along the middle support. 4. A pot-type insulator casting shaping device according to claim 2 or 3, characterized in that guide pin holes are provided on the annular positioning plate, and the guide mechanism is a guide pin fixed on the base. 5. A pot-type insulator casting shaping device according to claim 2 or 3, characterized in that: the compression output end of the quick clamp is provided with an elastic compression mechanism. 6. A pot-type insulator casting shaping device according to claim 5, characterized in that: the elastic pressing mechanism is a spring guide rod fixed on the pressing cantilever of the elastic pressing mechanism, sleeved on the The compression spring on the spring guide rod is composed of a compression head arranged at the end of the compression spring. 7. A pot-type insulator casting shaping device according to claim 1, 2 or 3, characterized in that: the intermediate support is fixed on the base by screws. 8. A device for setting the shape of pot-type insulator castings according to claim 1, 2 or 3, characterized in that: the base is a plate-shaped structure, and base legs are fixed under the base.