Tool for improving brazing single-furnace efficiency of corrugated pipe assembly

Abstract

The utility model relates to the technical field of vacuum arc-extinguishing chamber processing, and discloses a tool for improving the efficiency of a single furnace for brazing a corrugated pipe assembly, which comprises a die holder, a stand column is vertically connected onto the die holder, and the outer diameter of the stand column is matched with the inner diameter of a corrugated pipe; a through hole is formed in the middle of each universal ceramic chip, the inner diameter of each through hole is larger than the outer diameter of the outwards-protruding part of the protective cover of the corrugated pipe assembly, and the thickness of each universal ceramic chip is larger than the height of the outwards-protruding part of the protective cover. According to the tool, a plurality of corrugated pipe assemblies can be placed into a furnace in an overlapped mode, the height space of a furnace cavity is fully utilized, the single-furnace feeding amount of equipment is increased, and the single-furnace efficiency is improved; the corrugated pipe assemblies are not prone to toppling over after being placed in an overlapped mode, and product quality is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of vacuum arc extinguishing chamber processing, in particular to a tool for improving the efficiency of a single furnace for brazing a bellows assembly. Background Art

[0002] When sealing the vacuum interrupter, multiple brazing steps are required, one of which is the brazing of the bellows assembly, followed by the sealing of the entire tube. Figure 1 As shown, it includes a bellows 10, and a movable end cover 11 and a protective cover 12 respectively provided at both ends of the bellows 10. The bellows 10, the movable end cover 11 and the protective cover 12 are fixedly connected by plane brazing, which is easy to assemble and has good sealing performance.

[0003] When brazing bellows assemblies, the components are stacked. Because bellows are elastic components, to prevent them from tipping over during high-temperature brazing, which could lead to quality issues, individual bellows assemblies are typically laid flat on the furnace plate before being fed into the furnace. This results in underutilized furnace cavity height and low equipment utilization. If the bellows assemblies were simply stacked and fed into the furnace, they could easily tip over and produce scrap. Therefore, to improve equipment utilization and ensure product quality, an assembly tool was designed to increase the efficiency of feeding a single bellows assembly into the brazing furnace. Utility Model Content

[0004] To address the above-mentioned deficiencies in the prior art, the present invention provides a tool for improving the efficiency of a single furnace for brazing a bellows assembly.

[0005] In order to achieve the above technical purpose, the technical solution adopted by this utility model is:

[0006] A tooling for improving the efficiency of a single furnace for brazing a bellows assembly comprises a die base, to which a column is vertically connected, the outer diameter of the column being adapted to the inner diameter of the bellows; and a plurality of universal porcelain pieces, each of which has a through hole in the middle, the inner diameter of the through hole being larger than the outer diameter of the protruding portion of the protective cover of the bellows assembly, and the thickness of the universal porcelain piece being larger than the height of the protruding portion of the protective cover.

[0007] Furthermore, it also includes a die, wherein a through hole is provided in the middle of the die, and the inner diameter of the through hole of the die is larger than the outer diameter of the column.

[0008] Preferably, the column is detachably connected to the mold base.

[0009] Preferably, the column is connected to the mold base through threads.

[0010] Another preferred embodiment is that the column and the mold base are connected by argon arc welding.

[0011] Furthermore, a plurality of columns are connected and arranged in a matrix on the mold base.

[0012] The beneficial effects of the utility model are:

[0013] The tooling of the utility model can overlap and place multiple bellows assemblies into the furnace, fully utilizing the height space of the furnace cavity, increasing the amount of equipment fed into a single furnace, and improving the efficiency of a single furnace; it can ensure that the bellows assemblies are not easily tilted after being overlapped and placed, thereby ensuring product quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without creative work.

[0015] Figure 1 It is a structural diagram of a bellows assembly in the prior art;

[0016] Figure 2 This is a structural diagram of the mold base in the embodiment of the present utility model;

[0017] Figure 3 This is a structural diagram of a column in an embodiment of the present utility model;

[0018] Figure 4 This is a schematic structural diagram of a universal tile in an embodiment of the present utility model;

[0019] Figure 5 It is a schematic diagram of the bellows assembly being assembled on the tooling of the present invention.

[0020] Figure numerals: 1-mold base, 2-column, 3-universal ceramic tile, 4-die, 10-bellows, 11-moving end cover, 12-protective cover. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all of the embodiments. The components of the embodiments of the present application generally described and shown in the drawings here can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the application for protection, but merely represents the selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0022] A tool for improving the efficiency of a single furnace for brazing bellows components, such as Figure 2-Figure 5 As shown, it includes a mold base 1, to which a column 2 is vertically connected. The outer diameter of the column 2 is adapted to the inner diameter of the bellows. It also includes multiple universal tiles 3, each with a through hole in the middle. The inner diameter of the through hole is larger than the outer diameter of the protruding portion of the bellows assembly's protective cover. The thickness of the universal tile 3 is greater than the height of the protruding portion of the protective cover. The universal tile 3 is used to be placed under the bellows assembly to support and separate adjacent bellows assemblies. Preferably, the mold base 1 is connected to multiple columns 2 in a matrix arrangement.

[0023] Furthermore, a die 4 is also included, wherein a through hole is provided in the middle of the die 4 for being pressed onto the bellows assembly from the top. Of course, a general-purpose tile 3 can also be directly used to be pressed onto the bellows assembly.

[0024] Preferably, the upright column 2 is detachably connected to the mold base 1, for example, by a threaded connection. Another preferred method is to connect the upright column 2 to the mold base 1 by argon arc welding, wherein the argon arc welding is performed while ensuring the verticality of the upright column 2 and the mold base 1, thereby preventing the bellows assembly from tilting during the high-temperature brazing process.

[0025] When in use, first place a universal ceramic tile 3 through the column 2 on the mold base 1, then place the bellows assembly, and so on. After placing multiple bellows assemblies, place the die on the top to complete the entire assembly process. Place the assembled whole on the equipment furnace plate for brazing.

[0026] The tooling of the utility model can stack multiple bellows assemblies and place them in the furnace, making full use of the height space of the furnace cavity, increasing the amount of equipment that can be loaded into a single furnace, and improving the efficiency of a single furnace. The utility model can ensure that the bellows assemblies will not fall over after being stacked, thus ensuring product quality.

[0027] Of course, the present invention may have many other embodiments. Without departing from the spirit and essence of the present invention, technicians familiar with the field may make various corresponding changes and modifications based on the present invention, but these corresponding changes and modifications should all fall within the scope of protection of the claims attached to the present invention.

Claims

1. A tool for improving the efficiency of a single furnace for brazing a bellows assembly, characterized by: The invention comprises a mold base (1), a column (2) being vertically connected to the mold base (1), the outer diameter of the column (2) being adapted to the inner diameter of the corrugated pipe; and a plurality of universal ceramic sheets (3), a through hole being provided in the middle of the universal ceramic sheet (3), the inner diameter of the through hole being larger than the outer diameter of the convex portion of the protective cover of the corrugated pipe assembly, and the thickness of the universal ceramic sheet (3) being larger than the height of the convex portion of the protective cover.

2. The tooling for improving the efficiency of a single furnace for brazing bellows assemblies according to claim 1 is characterized in that: It also includes a pressing die (4), wherein a through hole is provided in the middle of the pressing die (4), and the inner diameter of the through hole of the pressing die (4) is larger than the outer diameter of the column (2).

3. The tooling for improving the efficiency of a single furnace for brazing bellows assemblies according to claim 1 is characterized in that: The upright column (2) is detachably connected to the mold base (1).

4. The tooling for improving the efficiency of a single furnace for brazing a bellows assembly according to claim 3 is characterized in that: The column (2) is connected to the mold base (1) via threads.

5. The tooling for improving the efficiency of a single furnace for brazing a bellows assembly according to claim 1 is characterized in that: The upright column (2) and the mold base (1) are connected by argon arc welding.

6. The tooling for improving the efficiency of a single furnace for brazing bellows assemblies according to claim 1 is characterized in that: The mold base (1) is connected to a plurality of columns (2) arranged in a matrix.

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