CN216912652U

CN216912652U - Welding mould of stator

Info

Publication number: CN216912652U
Application number: CN202122828079.5U
Authority: CN
Inventors: 林晓忠
Original assignee: Shanghai Avic Industrial Group Co ltd
Current assignee: Shanghai Avic Industrial Group Co ltd
Priority date: 2021-11-18
Filing date: 2021-11-18
Publication date: 2022-07-08
Anticipated expiration: 2031-11-18

Abstract

The utility model provides a welding mould for guide vanes, which is used for welding the guide vanes; the welding mold comprises an upper electrode and a lower electrode; a first through hole is formed in the upper electrode in a penetrating manner; the first through hole is composed of a first bolt hole and a first accommodating groove; a first fixing bolt is arranged in the first bolt hole; the first fixing bolt is connected with an upper flat plate of the welding machine; a second through hole is formed in the lower electrode in a penetrating mode; the second through-hole comprises second bolt hole and second holding tank. The welding mould for the guide vane can accurately position the front cover plate and the guide vane to be welded, ensures good contact of the welding part and is beneficial to improving the welding quality.

Description

Welding mould of stator

Technical Field

The utility model relates to the technical field of welding dies, in particular to a welding die for guide vanes.

Background

The guide vane is a rotary energy device of the centrifugal pump and is used for collecting liquid thrown out by the impeller, so that the flow velocity of the liquid is reduced, and after part of velocity energy head is converted into pressure energy head, the pressure energy head is uniformly introduced into the next stage or is discharged through the diffusion pipe.

The guide vane is formed by connecting different parts through a welding process, wherein a welding mould is a very important device in the welding process, and the quality of the welding mould directly influences the welding quality and then influences the performance of the guide vane.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a welding mould for guide vanes, which aims to solve the technical problem.

In order to achieve the purpose, the welding mould for the guide vane is used for welding the guide vane; the welding mould comprises an upper electrode and a lower electrode; a first through hole is formed in the upper electrode in a penetrating manner; the first through hole is composed of a first bolt hole and a first accommodating groove; a first fixing bolt is arranged in the first bolt hole; the first fixing bolt is connected with an upper flat plate of the welding machine; a second through hole is formed in the lower electrode in a penetrating mode; the second through hole is composed of a second bolt hole and a second accommodating groove; a second fixing bolt is arranged in the second bolt hole; the second fixing bolt is connected with a lower flat plate of the welding machine; the upper flat plate and the lower flat plate of the welding machine can move horizontally and lift vertically; a detachable mold aligning ring is arranged between the upper electrode and the lower electrode; the lower end of the upper electrode can be sleeved in the die aligning ring; the upper end of the lower electrode can be sleeved in the die aligning ring;

the welding mould comprises a positioning assembly, and the positioning assembly consists of a positioning ring, a positioning plate and a positioning block; the positioning ring is sleeved on the lower electrode; the positioning plate is positioned at the upper end of the lower electrode and sleeved inside the positioning ring, and a positioning hole is formed in the positioning plate; guide vanes are inserted into the positioning holes; the upper end of the guide vane is provided with a front cover plate; the positioning block is sleeved in the second accommodating groove of the lower electrode; the center of the positioning plate is provided with an opening; the positioning block passes through the opening; a gap is reserved between the positioning block and the positioning plate; the front cover plate comprises a sleeve at the center; the sleeve is sleeved on the positioning block and is positioned in a gap between the positioning block and the positioning plate.

Preferably, the lower electrode is of a convex structure with a large lower part and a small upper part, and the positioning ring is sleeved on the outer ring of the upper section of the lower electrode.

Preferably, the positioning block is of a convex structure, and the lower section of the positioning block is sleeved in the second accommodating groove; the sleeve is sleeved on the outer ring of the upper section of the positioning block.

Preferably, the first fixing bolt and the second fixing bolt are both hexagon socket head cap screws.

In addition, an upper through hole and a lower through hole are arranged in the matched die; the lower end of the upper electrode can be sleeved in the upper through hole; the upper end of the lower electrode can be sleeved in the lower through hole.

Advantageous effects

The welding mould for the guide vane can accurately position the front cover plate and the guide vane to be welded, ensures good contact of the welding part and is beneficial to improving the welding quality.

Drawings

Fig. 1 is a schematic structural view of a welding mold for a guide vane of the present invention.

Fig. 2 is a schematic structural diagram of a mold ring according to the present invention.

Fig. 3 is a schematic structural view of the positioning plate of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention. Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this invention belongs. As used herein, the word "comprising" and similar words are intended to mean that the element or item preceding the word comprises the element or item listed after the word and its equivalent, but not the exclusion of other elements or items.

Aiming at the problems in the prior art, the embodiment of the utility model provides a welding mould for guide vanes.

Examples

As shown in fig. 1 to 3, a welding mold for guide vanes is used for welding the guide vanes; the welding mould comprises an upper electrode 1 and a lower electrode 2; a first through hole is formed in the upper electrode 1; the first through hole is composed of a first bolt hole 1-1 and a first accommodating groove 1-2; a first fixing bolt 3 is arranged in the first bolt hole; the first fixing bolt 3 is connected with an upper flat plate (not shown in the figure) of the welding machine; a second through hole is formed in the lower electrode 2; the second through hole is composed of a second bolt hole 2-1 and a second accommodating groove 2-2; a second fixing bolt 4 is arranged in the second bolt hole 2-1; the second fixing bolt 4 is connected with a lower flat plate (not shown in the figure) of the welding machine; the upper flat plate and the lower flat plate of the welding machine can move horizontally and lift vertically; a detachable mold aligning ring 5 is arranged between the upper electrode 1 and the lower electrode 2; the lower end of the upper electrode 1 can be sleeved in the counter-mould ring 5; the upper end of the lower electrode 2 can be sleeved in the die aligning ring 5;

the welding mould comprises a positioning assembly, and the positioning assembly consists of a positioning ring 6, a positioning plate 7 and a positioning block 8; the positioning ring 6 is sleeved on the lower electrode 2; the positioning plate 7 is positioned at the upper end of the lower electrode 2 and sleeved inside the positioning ring 6, and a positioning hole 7-1 is formed in the positioning plate 7; a guide blade 9 is inserted into the positioning hole 7-1; the upper end of the guide vane 9 is provided with a front cover plate 10; the positioning block 8 is sleeved in the second accommodating groove 2-2 of the lower electrode 2; the center of the positioning plate 7 is provided with an opening 7-2; the positioning block 8 penetrates through the opening 7-2; a gap is reserved between the positioning block 8 and the positioning plate 7; the front cover plate 10 includes a sleeve at the center; the sleeve is sleeved on the positioning block 8 and is positioned in a gap between the positioning block and the positioning plate.

The front cover plate 10 further includes an annular plate located above the positioning plate 7.

The lower electrode 2 is of a convex structure with a large lower part and a small upper part, and the positioning ring 6 is sleeved on the outer ring of the upper section of the lower electrode 2.

The positioning block 8 is of a convex structure, and the lower section of the positioning block 8 is sleeved in the second accommodating groove 2-2; the sleeve is sleeved on the outer ring of the upper section of the positioning block 8.

The first fixing bolt 3 and the second fixing bolt 4 are both inner hexagonal cylindrical screws.

An upper through hole 5-1 and a lower through hole 5-2 are arranged in the die ring pair 5; the lower end of the upper electrode 1 can be sleeved in the upper through hole 5-1; the upper end of the lower electrode 2 can be sleeved in the lower through hole 5-2.

When the guide vane welding mould is used, the counter mould ring 5 is sleeved on the lower electrode 2; the position of the upper electrode 1 is adjusted by horizontally and vertically moving the upper flat plate of the welding machine, so that the upper electrode 1 can be sleeved in the die alignment ring 5; completing centering; and lifting the upper flat plate of the welding machine, taking down the counter mould ring 5, operating the upper flat plate of the welding machine again to move downwards to enable the upper electrode 1 to be in contact with the lower electrode 2, observing whether the contact surfaces are overlapped, performing next operation if the contact surfaces are overlapped, and polishing the upper electrode 1 and the lower electrode 2 if the contact surfaces are not overlapped.

Sleeving a positioning ring 6 at the upper end of the lower electrode 2, placing a positioning block 8 in a second accommodating groove 2-2 of the lower electrode 2, and placing an upper positioning plate 7 at the upper end of the lower electrode 2; the positioning plate 7 is sleeved in the positioning ring 6; inserting a guide vane 9 into a positioning hole 7-1 of the positioning plate 7; the front cover plate 10 is sleeved on the positioning block 8; and the distance between the upper electrode 1 and the lower electrode 2 is adjusted, and welding can be completed after electrification.

Although the embodiments of the present invention have been described in detail hereinabove, it is apparent to those skilled in the art that various modifications and variations can be made to these embodiments. However, it is to be understood that such modifications and variations are within the scope and spirit of the present invention as set forth in the following claims. Moreover, the utility model as described herein is capable of other embodiments and of being practiced or of being carried out in various ways.

Claims

1. A welding mould of guide vanes is used for welding the guide vanes; the welding mould is characterized by comprising an upper electrode and a lower electrode; a first through hole is formed in the upper electrode in a penetrating manner; the first through hole is composed of a first bolt hole and a first accommodating groove; a first fixing bolt is arranged in the first bolt hole; the first fixing bolt is connected with an upper flat plate of the welding machine; a second through hole is formed in the lower electrode in a penetrating mode; the second through hole is composed of a second bolt hole and a second accommodating groove; a second fixing bolt is arranged in the second bolt hole; the second fixing bolt is connected with a lower flat plate of the welding machine; the upper flat plate and the lower flat plate of the welding machine can move horizontally and lift vertically; a detachable mold aligning ring is arranged between the upper electrode and the lower electrode; the lower end of the upper electrode can be sleeved in the die aligning ring; the upper end of the lower electrode can be sleeved in the die aligning ring;

2. The welding mould of a stator of claim 1, characterized in that, the bottom electrode is big end up's type structure, the position circle cup joints in the upper segment outer lane of bottom electrode.

3. The welding mold for the guide vane according to claim 2, wherein the positioning block is of a convex structure, and a lower section of the positioning block is sleeved in the second accommodating groove; the sleeve is sleeved on the outer ring of the upper section of the positioning block.

4. The welding mold for guide vanes according to claim 3, characterized in that said first and second fixing bolts are both socket head cap screws.

5. The welding mould of the guide vane according to claim 4, characterized in that an upper through hole and a lower through hole are arranged in the pair of mould rings; the lower end of the upper electrode can be sleeved in the upper through hole; the upper end of the lower electrode can be sleeved in the lower through hole.