Design method of special fixture for energy storage spot welding positioning based on guide vane assembly

Abstract

The invention provides a design method of a special fixture for energy storage spot welding positioning based on a guide vane assembly, which comprises the following steps of: determining an energy storage spot welding process route, firstly spot-welding a partition plate I and a partition plate II, secondly spot-welding a honeycomb, and then spot-welding and combining with a main body part. Determining a part positioning reference, and selecting the excircle of the part as a positioning reference surface; a point electrode holder material is selected, and brass or red copper is selected as the point electrode holder material. A detachable point electrode base is designed, the first partition plate and the second partition plate are preferentially assembled in the spot welding process, the partition plate assembly is formed, welding points are increased, the welding strength is improved, and the honeycomb assembly is formed. The method has the advantages that the stability and inclusiveness are considered while the dimensional precision of the part is guaranteed, and the spot welding efficiency is improved. Through the adaptive radian, the integrating degree between the honeycomb and the partition plate is improved, the stress strength of parts during energy storage spot welding is improved, the bonding strength between the parts is enhanced, deformation of the partition plate and the honeycomb is reduced, and the vacuum brazing quality of the parts is improved.

Description

Technical Field

[0001] The invention relates to the field of pre-welding assembly positioning of aero-engine vacuum brazing components, and in particular to a design method for a special fixture for energy storage spot welding positioning of a guide vane component. Background Art

[0002] As aircraft engines are constantly upgraded, the structure of parts will also change accordingly. The low guide vane assembly of this model adopts a new configuration, which has caused corresponding problems such as difficult processing, difficult welding, and low one-time welding pass rate. It is necessary to generate new process solutions and tooling solutions for this new configuration. Summary of the invention

[0003] The purpose of the present invention is to cooperate with a new process scheme to improve the efficiency and brazing quality of the assembly positioning spot welding before vacuum brazing of parts, and a design method for a special fixture for energy storage spot welding positioning based on a guide vane assembly is provided.

[0004] The present invention provides a design method for a special fixture for energy storage spot welding positioning of a guide vane assembly, comprising:

[0005] 1. Determine the energy storage spot welding process route, first spot weld the partition 1 and the partition 2, then spot weld the honeycomb 3, and then spot weld it with the main part 4. See attached Figure 2

[0006] 2. Determine the part positioning reference

[0007] Attach Figure 1 Taking the part shown in the figure as an example, select the outer circle of the part as the positioning reference surface.

[0008] 3. Choose the material of the pole seat

[0009] The material of the point pole seat is brass or copper, preferably copper.

[0010] 4. Design of detachable pole seat (see attached) Figure 3

[0011] The radial positioning dimensions of the point pole seat positioning surface should be consistent with the attached Figure 2 The outer diameters of the middle partition 1 are the same. During the spot welding process, the partition 1 and the partition 2 are assembled first to form a partition assembly, and the welding points are increased to increase the welding strength.

[0012] After the partition assembly is spot welded, the honeycomb 3 is placed on the spot welded partition, and secondary spot welding is performed to spot weld the honeycomb 3 to the partition assembly to form a honeycomb assembly. After that, the assembly is completed on the energy storage spot welding fixture, and the honeycomb assembly is spot welded to the main part 4 to complete the spot welding process.

[0013] Compared with the prior art, the present invention has the following advantages:

[0014] The design method of the special fixture for energy storage spot welding positioning of the guide vane assembly described in the present invention ensures the dimensional accuracy of the parts while taking into account stability and inclusiveness, so that one tool can complete the work of energy storage spot welding of the guide vane assembly, reducing the workload of workers and improving the efficiency of spot welding. The fit between the honeycomb and the partition is improved by adapting the arc, increasing the force strength of the parts during energy storage spot welding, strengthening the bonding strength between the parts, reducing the deformation of the partition and the honeycomb, and improving the vacuum brazing quality of the parts. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments:

[0016] Figure 1 This is a schematic diagram of the energy storage spot welding fixture;

[0017] Figure 2 is the new configuration diagram;

[0018] Figure 3 This is a diagram of a removable point pole seat. DETAILED DESCRIPTION

[0019] The present invention will be further explained below in conjunction with specific implementation plans, but the present invention is not limited thereto. The structures, proportions, sizes, etc. illustrated in the drawings of the specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the restrictive conditions under which the present invention can be implemented. Therefore, they have no substantive technical significance. Any structural modification, change in proportional relationship or adjustment of size should still fall within the scope of the technical content disclosed by the present invention without affecting the effects and purposes that can be achieved by the present invention.

[0020] The present invention provides a design method for a special fixture for energy storage spot welding positioning of a guide vane assembly, comprising:

[0021] 1. Determine the energy storage spot welding process route, first spot weld the partition 1 and the partition 2, then spot weld the honeycomb 3, and then spot weld it with the main part 4. See attached Figure 2

[0022] 2. Determine the part positioning reference

[0023] Attach Figure 1 Taking the part shown in the figure as an example, select the outer circle of the part as the positioning reference surface.

[0024] 3. Choose the material of the pole seat

[0025] The material of the point pole seat is brass or copper, preferably copper.

[0026] 4. Design of detachable pole seat (see attached) Figure 3

[0027] The radial positioning dimensions of the point pole seat positioning surface should be consistent with the attached Figure 2 The outer diameters of the middle partition 1 are the same. During the spot welding process, the partition 1 and the partition 2 are assembled first to form a partition assembly, and the welding points are increased to increase the welding strength.

[0028] After the partition assembly is spot welded, the honeycomb 3 is placed on the spot welded partition, and secondary spot welding is performed to spot weld the honeycomb 3 to the partition assembly to form a honeycomb assembly. After that, the assembly is completed on the energy storage spot welding fixture, and the honeycomb assembly is spot welded to the main part 4 to complete the spot welding process.

[0029] Matters not covered by the present invention are known technologies.

[0030] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A design method for a special fixture for energy storage spot welding positioning of a guide vane assembly, characterized in that: The design method of the special fixture for energy storage spot welding positioning of the guide vane assembly comprises:

1. Determine the energy storage spot welding process route, first spot weld the partition 1 (1) and the partition 2 (2), then spot weld the honeycomb (3), and then spot weld it with the main part (4); 2. Determine the positioning reference of the part and select the outer circle of the part as the positioning reference surface; 3. Select the material of the pole seat. The pole seat material should be brass or copper.

4. Design a detachable spot pole seat, the radial positioning dimension of the spot pole seat positioning surface is the same as the outer diameter of the partition one (1), and in the spot welding process, the partition one (1) and the partition two (2) are assembled first to form a partition assembly, and the welding points are increased to increase the welding strength; after the spot welding of the partition assembly is completed, the honeycomb (3) is placed on the spot welded partition, and a second spot welding is performed to spot weld the honeycomb (3) to the partition assembly to form a honeycomb assembly; then, the assembly is completed on the energy storage spot welding fixture, and the honeycomb assembly is spot welded to the main part (4) to complete the spot welding process.

2. The design method of the special fixture for energy storage spot welding positioning of the guide vane assembly according to claim 1 is characterized in that: The material of the point pole seat is copper.

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