Mounting and positioning tool for ceramic bushing of heater

Abstract

The utility model discloses a heater ceramic bushing installation positioning tool, which comprises a positioning sleeve and a reinforcing rib plate, the bottom of the positioning sleeve is provided with three positioning turnups distributed at equal intervals, the outer diameter of each positioning turnup is in clearance fit with a hole on a support plate, and the positioning turnups are arranged on the support plate. The outer diameter of the lower part of the positioning sleeve is matched with an inner circle formed by placing the three lower fixing blocks; the positioning sleeve is provided with a positioning turnup edge, the reinforcing rib plate is arranged at the position, corresponding to the positioning turnup edge, of the positioning sleeve, the inner diameter of the lower portion of the positioning sleeve is matched with the outer diameter of the upper portion of the ceramic lining, and the positioning turnup edge is connected with the upper fixing block in a clamped mode. And the tool is accurate in positioning, high in assembly precision, capable of being repeatedly used, simple in structure, ingenious in design and capable of saving the installation cost.

Description

Technical Field

[0001] The utility model belongs to the technical field of heater installation tooling, and particularly relates to an installation and positioning tooling for a ceramic bushing of a heater. Background Technique

[0002] The electric heating core assembly of a high-temperature gas source system is composed of structures such as heating tubes and support plate assemblies. Among them, the ceramic bushing on the support plate assembly is assembled and welded with the support plate and its fixing plate. The heating core assembly is composed of 420 ceramic bushings, and the amount of assembly and welding is huge. Among them, the assembly dimensions and tolerance requirements of the fixing plate are relatively high. As Figure 3 shown, each hole on the support plate corresponds to the installation of 1 ceramic bushing, 3 upper fixing blocks, and 3 lower fixing blocks. The upper and lower fixing blocks are welded to the support plate to fix the ceramic bushing on the support plate. How to efficiently assemble and weld the ceramic bushing is a problem in the existing heater assembly. For this reason, we propose an installation and positioning tooling for a ceramic bushing of a heater. Content of the Utility Model

[0003] The purpose of the utility model is to provide an installation and positioning tooling for a ceramic bushing of a heater to solve the problems raised in the above background technique.

[0004] To achieve the above purpose, the utility model provides the following technical solution: An installation and positioning tooling for a ceramic bushing of a heater, including a positioning sleeve and a reinforcing rib plate. Three equally spaced positioning flanges are arranged at the bottom of the positioning sleeve. The outer diameter of the positioning flange is in clearance fit with the hole on the support plate, and the outer diameter of the lower part of the positioning sleeve is adapted to the inner circle formed by the placement of three lower fixing blocks;

[0005] The reinforcing rib plate is arranged at the position of the positioning sleeve corresponding to the positioning flange. The inner diameter of the lower part of the positioning sleeve is adapted to the outer diameter of the upper part of the ceramic bushing, and the positioning flange is clamped with the upper fixing block.

[0006] Preferably, the distance between adjacent positioning flanges is greater than the size of the upper fixing block or the lower fixing block.

[0007] Preferably, a removal through hole is penetrated and opened in the upper part of the positioning sleeve.

[0008] Compared with the prior art, the beneficial effects of the utility model are:

[0009] 1. The utility model is provided with a positioning sleeve, a reinforcing rib plate and a positioning flange. When installing the ceramic bushing, first place the support plate on the reverse side, then snap the positioning flange at the bottom of the tooling into the hole on the support plate, and the upper end face of the positioning flange is flush with the upper end face of the reverse side of the support plate. Then place the lower fixing block at the position corresponding to the hole on the positioning flange and the support plate according to the angle of the reinforcing rib plate, and the lower fixing block closely adheres to the outer circle of the lower part of the positioning sleeve. Weld the support plate and the lower fixing block together. Then take out the tooling, place the support plate on the front side, assemble the ceramic bushing into the hole on the support plate, then snap the bottom of the tooling onto the ceramic bushing, and then snap the upper fixing block onto the positioning flange and align it with the lower fixing block. Then weld the upper fixing block and the support plate, and then rotate and take out the tooling. The assembly of the ceramic bushing is completed. It can quickly assemble the ceramic bushing, and this tooling has accurate positioning, high assembly precision, can be reused, and the structure of this tooling is simple, ingeniously designed, and saves the installation cost;

[0010] 2. The utility model is provided with a removal through hole, and the distance between adjacent positioning flanges is greater than the size of the upper fixing block or the lower fixing block. After the upper fixing block and the lower fixing block are welded, use a tool to clamp in the removal through hole and rotate the positioning sleeve to align the space between adjacent positioning flanges with the upper fixing block or the lower fixing block, and then take out the tooling. It is convenient for installation and disassembly, simple and convenient to use, and improves work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 is a schematic cross-sectional structure view of the tooling of the utility model;

[0012] Figure 2 is a schematic top view structure view of the tooling of the utility model;

[0013] Figure 3 is a schematic cross-sectional structure view of the ceramic bushing assembly of the utility model;

[0014] Figure 4 is a schematic diagram of the installation steps of the tooling of the utility model;

[0015] Figure 5 is a schematic diagram of the installation steps of the tooling of the utility model;

[0016] Figure 6 is a schematic diagram of the installation steps of the tooling of the utility model.

[0017] In the figure: 1, positioning sleeve; 2, reinforcing rib plate; 3, positioning flange; 4, removal through hole. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0018] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0019] Please refer to Figures 1-6 , the installation and positioning tooling for the heater ceramic bushing provided by the present utility model includes a positioning sleeve 1 and a reinforcing rib plate 2. Three equally spaced positioning flanges 3 are provided at the bottom of the positioning sleeve 1. The outer diameter of the positioning flange 3 is in clearance fit with the holes on the support plate. The lower outer diameter of the positioning sleeve 1 is adapted to the inner circle formed by arranging three lower fixing blocks;

[0020] The reinforcing rib plate 2 is arranged at the position of the positioning sleeve 1 corresponding to the positioning flange 3. The lower inner diameter of the positioning sleeve 1 is adapted to the upper outer diameter of the ceramic bushing, and the positioning flange 3 is snap-connected to the upper fixing block.

[0021] The present utility model is provided with a positioning sleeve 1, a reinforcing rib plate 2 and a positioning flange 3. When installing the ceramic bushing, first place the support plate on the reverse side, then snap the positioning flange 3 at the bottom of the tooling into the holes on the support plate, and the upper end surface of the positioning flange 3 is flush with the upper end surface of the reverse side of the support plate. Then place the lower fixing blocks at the positions corresponding to the positioning flange 3 and the holes on the support plate according to the angle of the reinforcing rib plate 2, and the lower fixing blocks are closely attached to the lower outer circle of the positioning sleeve 1, and the support plate and the lower fixing blocks are welded and fixed. Then take out the tooling, then place the support plate on the front side, assemble the ceramic bushing into the holes on the support plate, then snap the bottom of the tooling onto the ceramic bushing, then snap the upper fixing block onto the positioning flange 3 and align it with the lower fixing block, then weld the upper fixing block to the support plate, and then rotate and take out the tooling. The assembly of the ceramic bushing is completed. It can quickly assemble the ceramic bushing, and the tooling has accurate positioning and high assembly precision, can be reused, and the structure of this tooling is simple, the design is ingenious, and the installation cost is saved.

[0022] In this embodiment, as Figures 1-6 shown, the distance between adjacent positioning flanges 3 is greater than the size of the upper fixing block or the lower fixing block. A removal through hole 4 is provided through the upper part of the positioning sleeve 1;

[0023] The present utility model is provided with a removal through hole 4, and the distance between adjacent positioning flanges 3 is greater than the size of the upper fixing block or the lower fixing block. After the upper fixing block and the lower fixing block are welded, use a tool to clamp in the removal through hole 4 and rotate the positioning sleeve 1 to align the space between adjacent positioning flanges 3 with the upper fixing block or the lower fixing block, and then the tooling can be taken out. It is convenient for installation and disassembly, simple and convenient to use, and improves work efficiency.

[0024] In summary, the usage method of the installation and positioning tooling for the heater ceramic bushing provided in this embodiment is as follows:

[0025] S1. As shown in Figure 4 , first place the support plate on the reverse side, then snap the positioning flange 3 at the bottom of the tooling into the hole on the support plate, and make the upper end face of the positioning flange 3 flush with the upper end face of the reverse side of the support plate. Then place the lower fixing block at the position corresponding to the hole on the positioning flange 3 and the support plate according to the angle of the reinforcing rib plate 2, and make the lower fixing block closely adhere to the outer circle of the lower part of the positioning sleeve 1. Then weld and fix the support plate and the lower fixing block, and then take out the tooling;

[0026] S2. As shown in Figure 5 , place the support plate on the front side and assemble the ceramic bushing into the hole on the support plate;

[0027] S3. As shown in Figure 6 , snap the bottom of the tooling onto the ceramic bushing, then snap the upper fixing block onto the positioning flange 3 and align it with the lower fixing block. Then weld the upper fixing block and the support plate, and then rotate and take out the tooling, and the assembly of the ceramic bushing is completed.

[0028] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An installation and positioning tooling for a heater ceramic bushing, characterized in that, It includes a positioning sleeve (1) and a reinforcing rib plate (2). At the bottom of the positioning sleeve (1), there are three positioning flanges (3) evenly distributed at equal intervals. The outer diameter of the positioning flange (3) is in clearance fit with the holes on the support plate, and the lower outer diameter of the positioning sleeve (1) is adapted to the inner circle formed by the placement of three lower fixing blocks; The reinforcing rib plate (2) is arranged at the position of the positioning sleeve (1) corresponding to the positioning flange (3). The lower inner diameter of the positioning sleeve (1) is adapted to the upper outer diameter of the ceramic bushing, and the positioning flange (3) is snap-connected to the upper fixing block.

2. The installation and positioning tooling for a heater ceramic bushing according to claim 1, characterized in that: The distance between adjacent positioning flanges (3) is greater than the size of the upper fixing block or the lower fixing block.

3. The installation and positioning tooling for the heater ceramic bushing according to claim 1, characterized in that: A removal through-hole (4) is formed through the upper part of the positioning sleeve (1).

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