Combustion chamber bottom assembly welding jig

Abstract

The utility model relates to a combustion chamber bottom assembly welding jig which is characterized by comprising a welding base. A bottom group placing table is arranged on the welding base in a fine adjustment manner; an axis positioning assembly is vertically arranged in the middle of the bottom group placing table; and a second positioning part is coaxially arranged along the axis of the axis positioning assembly. Through the design of the bottom group placing table capable of being finely adjusted, the accurate axis positioning assembly, the flexible second positioning part and the like, accurate positioning and firm pressing of the combustion chamber bottom assembly can be achieved, the welding requirements of assemblies of different specifications are met, and powerful guarantee is provided for high-quality welding of the combustion chamber bottom assembly.

Description

Technical Field

[0001] The utility model relates to the technical field of special welding forming, in particular to a welding jig for a combustion chamber bottom assembly. Background Art

[0002] In modern industrial production, as the core component of many key equipment, the performance and quality of the combustion chamber directly affect the operation effect and safety of the whole equipment. The welding of the combustion chamber bottom assembly is an important link in the manufacturing process of the combustion chamber, and the quality of welding plays a crucial role in the sealing performance, strength and reliability of the combustion chamber.

[0003] Traditional welding methods for combustion chamber bottom assemblies often have the following problems: 1) inaccurate positioning, it is difficult to ensure the relative position accuracy of each component during the welding process, which easily leads to welding deviation and affects the performance of the combustion chamber; 2) lack of effective pressing devices, the components are prone to displacement during the welding process, affecting the welding quality; 3) poor versatility and adjustability of the welding jig, it cannot meet the welding requirements of different specifications of combustion chamber bottom assemblies, increasing the production cost and production cycle. Summary of the Invention

[0004] The purpose of the utility model is to provide a welding jig for a combustion chamber bottom assembly, which can achieve precise positioning and firm pressing of the combustion chamber bottom assembly through designs such as a finely adjustable bottom group placement table, an accurate axis positioning component and a flexible second positioning component, meet the welding requirements of different specifications of components, and provide a strong guarantee for the high-quality welding of the combustion chamber bottom assembly, so as to solve the above technical problems.

[0005] To achieve the above technical solution, the technical solution of the utility model is as follows: A welding jig for a combustion chamber bottom assembly, characterized in that it includes a welding base; a bottom group placement table is finely adjustable on the welding base; an axis positioning component is vertically arranged at the center position of the bottom group placement table; a second positioning component is coaxially arranged along the axis of the axis positioning component.

[0006] Further, installation positioning adjustment grooves are circumferentially arranged on one side of the bottom group placement table; a diamond positioning pin is inserted in the direction of the axis of the bottom group placement table in the front direction corresponding to the installation positioning adjustment grooves; a hollow columnar protrusion extends outward on the other side of the bottom group placement table; adjustment holes are arranged along the radial direction of the hollow columnar protrusion.

[0007] Further, the second positioning component is a first pressing component group arranged in a circumferential array and slidably arranged on the bottom group placement table or a lifting pressing component detachably arranged on the axis positioning component.

[0008] Further, the second positioning component is a first pressing component; the first pressing component includes a first pressing base provided with a long strip-shaped through hole; a first positioning pin is rotatably connected to the first pressing base in the vertical direction, and the first positioning pin is located directly above the diamond-shaped positioning pin; a pull rod is inserted into the first pressing base in the horizontal direction; one end of the diamond-shaped positioning pin is diamond-shaped.

[0009] Further, the second positioning component is a lifting and pressing component; the lifting and pressing component includes a integrally formed lifting base; a full-weld pressing plate is detachably installed on the lifting base.

[0010] Further, an L-shaped connecting convex portion extends outward from the lifting base.

[0011] Further, the axis positioning component includes a centering shaft inserted into the bottom group placing table; a clamping spring is sleeved on the centering shaft; an extrusion block is rotatably connected to the centering shaft.

[0012] Further, one end of the centering shaft is square-shaped.

[0013] Further, an adjusting pin is rotatably connected to the welding base.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] 1) The bottom group placing table can be finely adjusted on the welding base, which can accurately adjust the position of the combustion chamber bottom component, ensure that all components are in the best welding position during the welding process, and improve the welding accuracy; the axis positioning component is vertically arranged at the center position of the bottom group placing table, and the second positioning component arranged coaxially along the axis can accurately determine the center position and axial direction of the combustion chamber bottom component, prevent deviation during the welding process, ensure the accuracy and quality of the welding joint, and effectively improve the welding accuracy;

[0016] 2) Installation positioning adjustment grooves are circumferentially arranged in an array on one side of the bottom group placing table, which can be adjusted according to combustion chamber bottom components of different sizes and shapes to adapt to the welding requirements of various specifications; the second positioning component can be a slidable first pressing component or a detachable lifting and pressing component, which provides a variety of positioning and pressing methods, can meet the requirements of different welding processes and the structure of the combustion chamber bottom component, enhances the applicability of the welding jig, and effectively enhances the applicability;

[0017] 3) The welding jig can quickly and accurately position and fix the combustion chamber bottom component, reduce the preparation time and adjustment time before welding, and improve the welding efficiency; the designs of the first pressing component and the lifting and pressing component are convenient to operate, can quickly realize the pressing of the combustion chamber bottom component, improve the working efficiency of welding; and effectively improve the welding efficiency;

[0018] 4) The precise positioning and stable clamping of the welding jig can prevent the displacement and deformation of the combustion chamber bottom assembly during the welding process, ensuring the quality and strength of the welded joint; the setting of the clamping spring and the extrusion block can ensure the firm fixation of the axial center positioning assembly to the combustion chamber bottom assembly, further improving the welding quality and effectively guaranteeing the welding quality;

[0019] 5) The adjustment needle screwed onto the welding base and the fine-tuning design of the bottom group placement table make the adjustment operation simple and convenient, and can quickly achieve precise adjustment. The structural design of each component is reasonable, easy to install, disassemble and adjust, improving the convenience of operation and having convenient operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] To further illustrate each embodiment, the present utility model provides drawings. These drawings are a part of the disclosure of the present utility model, mainly used to illustrate the embodiments and can be combined with the relevant descriptions in the specification to explain the operating principle of the embodiments. With reference to these contents, those of ordinary skill in the art should be able to understand other possible implementation manners and the advantages of the present utility model. The components in the drawings are not drawn to scale, and similar component symbols are usually used to represent similar components.

[0021] Figure 1 is an exploded view of the welding jig for the combustion chamber bottom assembly;

[0022] Figure 2 is a front view of the welding jig for the combustion chamber bottom assembly using the first pressing component assembly;

[0023] Figure 3 is a left view of the welding jig for the combustion chamber bottom assembly using the lifting and pressing component assembly. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the 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 of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0025] In order to enable those skilled in the art of this technology to better understand the solution of the present utility model, the present utility model will be further described in detail below with reference to the drawings and specific implementation manners.

[0026] Please refer to the attached Figures 1 to 3Shown: A welding jig for a combustion chamber bottom assembly, characterized in that it includes a welding base 1; a bottom group placement table 2 is finely adjustable on the welding base 1; an axis positioning assembly 3 is vertically provided at the center position of the bottom group placement table 2; a second positioning member 4 is coaxially provided along the axis of the axis positioning assembly 3. In the welding jig of the present utility model, the bottom group placement table is finely adjustable on the welding base, which can accurately adjust the position of the combustion chamber bottom assembly, ensure that each component is in the best welding position during the welding process, and improve the welding accuracy; the axis positioning assembly is vertically provided at the center position of the bottom group placement table, and the second positioning member coaxially provided along the axis can accurately determine the center position and axial direction of the combustion chamber bottom assembly, prevent deviation during the welding process, ensure the accuracy and quality of the welding joint, and effectively improve the welding accuracy.

[0027] Based on the above embodiment, mounting positioning adjustment grooves 21 are circumferentially and arrayedly provided on one side of the bottom group placement table 2; a diamond positioning pin 22 is inserted in the axial direction of the bottom group placement table 2 in the front direction of the mounting positioning adjustment grooves 21; a hollow cylindrical convex portion 23 extends outward on the other side of the bottom group placement table 2; adjustment holes are provided along the radial direction of the hollow cylindrical convex portion 23.

[0028] Based on the above embodiment, the second positioning member 4 is a first pressing member assembly 41 that is circumferentially and arrayedly and slidably arranged on the bottom group placement table 2 or a lifting and pressing assembly 42 that is detachably arranged on the axis positioning assembly 3.

[0029] Based on the above embodiment, please refer to Figure 1 and Figure 2 Shown, the second positioning member 4 is a first pressing member assembly 41; the first pressing member assembly 41 includes a first pressing base 411 provided with a long-strip through hole; a first positioning pin 412 is screwed vertically on the first pressing base 411, and the first positioning pin 412 is located directly above the diamond positioning pin 22; a pull rod 413 is inserted horizontally on the first pressing base 411; one end of the diamond positioning pin 22 is diamond-shaped.

[0030] Based on the above embodiment, please refer to Figure 1 and Figure 3 Shown, the second positioning member 4 is a lifting and pressing assembly 42; the lifting and pressing assembly 42 includes a lifting base 421 formed integrally; a full-weld pressing plate 422 is detachably installed on the lifting base 421.

[0031] Based on the above embodiment, an L-shaped connecting convex portion extends outward on the lifting base 421.

[0032] Based on the above embodiments, the axial center positioning component 3 includes a centering shaft 31 inserted into the bottom group placing table 2; a clamping spring 32 is sleeved on the centering shaft 31; and an extrusion block 33 is screwed on the centering shaft 31.

[0033] Based on the above embodiments, one end of the centering shaft 31 is square-shaped.

[0034] Based on the above embodiments, an adjusting needle is screwed on the welding base 1.

[0035] The practical use of the present utility model is as follows: the assembly of the welding jig:

[0036] First, place the welding base 1 on a stable workbench. Install the bottom group placing table 2 on the welding base 1. Since the bottom group placing table 2 can be finely adjusted on the welding base 1, the position and angle of the bottom group placing table can be precisely adjusted according to actual needs through fine adjustment mechanisms such as adjusting needles, bolts, sliders, etc., to ensure that it is in the best welding position and provide a stable foundation for subsequent welding operations. Vertically install the axial center positioning component 3 at the center position of the bottom group placing table 2. Specifically, insert the centering shaft 31 into the bottom group placing table 2 to ensure that the centering shaft 31 is perpendicular to the bottom group placing table. Then, sleeve the clamping spring 32 on the centering shaft 31, and then screw the extrusion block 33 on the centering shaft 31. One end of the centering shaft 31 is square-shaped, which is convenient for connecting and operating with other components. Select the second positioning component 4 according to the welding requirements. If the first pressing component 41 is selected, install the first pressing base 411 on the bottom group placing table 2. The first pressing base 411 is provided with a long strip-shaped through hole, which can be connected to the bottom group placing table 2 through bolts or other connecting parts and can be adjusted in position according to needs. Vertically screw the first positioning needle 412 on the first pressing base 411 to ensure that the first positioning needle 412 is directly above the diamond-shaped positioning pin 22. At the same time, insert a pull rod 413 horizontally on the first pressing base 411 for further fixing and adjusting the position of the first pressing component 41. If the lifting pressing component 42 is selected, install the lifting base 421 on the axial center positioning component 3. A full-weld pressing plate 422 is detachably installed on the lifting base 421, and different full-weld pressing plates can be replaced according to needs to adapt to different welding requirements. The lifting base 421 extends outward with an L-shaped connecting convex part for connecting and fixing with other components.

[0037] Installation and positioning of the combustion chamber bottom assembly:

[0038] Place the combustion chamber bottom assembly on the bottom group placement table 2 so that its center is aligned with the centering shaft 31 of the shaft center positioning assembly 3. By adjusting the position and angle of the bottom group placement table 2 and rotating the extrusion block 33, the clamping spring 32 clamps the combustion chamber bottom assembly to achieve shaft center positioning. Further positioning is carried out by using the mounting positioning adjustment slots 21 arranged in a circumferential array on one side of the bottom group placement table 2 and the diamond-shaped positioning pins 22 inserted in the forward direction. The mounting positioning adjustment slots 21 can be adjusted according to the size and shape of the combustion chamber bottom assembly to ensure the accurate position of the combustion chamber bottom assembly on the bottom group placement table 2. One end of the diamond-shaped positioning pin 22 is diamond-shaped, which can better cooperate with the corresponding part of the combustion chamber bottom assembly to improve the positioning accuracy. If the first pressing component 41 is selected as the second positioning component, the position and angle of the first pressing base 411 are adjusted so that the first positioning pin 412 presses the combustion chamber bottom assembly, and the position of the first pressing component 41 is further fixed by the pull rod 413. If the lifting pressing component 42 is selected, the full-weld pressing plate 422 is installed on the lifting base 421, and the position of the lifting base 421 is adjusted so that the full-weld pressing plate 422 presses the combustion chamber bottom assembly.

[0039] After the installation and positioning of the combustion chamber bottom assembly are completed, check whether all components of the welding jig are firm and reliable to ensure that the combustion chamber bottom assembly will not be displaced during the welding process. Prepare the welding equipment, adjust the welding parameters to ensure the welding quality. Start the welding operation and perform the welding according to the predetermined welding sequence and process. During the welding process, pay attention to observing the welding situation and adjust the welding parameters in a timely manner to ensure the welding quality. After the welding is completed, turn off the welding equipment and wait for the welded part to cool down.

[0040] The above is only a preferred embodiment of the present invention, and it is not intended to limit the present invention in any form. Although the present invention has been disclosed as above with the preferred embodiment, it is not intended to limit the present invention. Any person skilled in the art should be able to make equivalent embodiments with equivalent changes by using the above-disclosed technical content with some modifications within the scope of the technical solution of the present invention. However, as long as it does not depart from the content of the technical solution of the present invention, any brief modifications, equivalent changes and modifications made to the above embodiments according to the technical essence of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. A welding jig for a combustion chamber bottom assembly, characterized in that: The invention comprises a welding base (1); a bottom assembly placement platform (2) is finely adjustable on the welding base (1); an axis positioning component (3) is vertically provided at the center of the bottom assembly placement platform (2); and a second positioning component (4) is coaxially provided along the axis of the axis positioning component (3).

2. The combustion chamber bottom assembly welding jig according to claim 1, characterized in that: A circular array of installation positioning adjustment grooves (21) is provided on one side of the bottom assembly placement platform (2); a diamond-shaped positioning pin (22) is inserted in the axial direction of the bottom assembly placement platform (2) in the direction directly in front of the installation positioning adjustment grooves (21); a hollow columnar protrusion (23) is extended outwardly on the other side of the bottom assembly placement platform (2); and the hollow columnar protrusion (23) is provided with adjustment holes along the radial direction.

3. The combustion chamber bottom assembly welding jig according to claim 1, characterized in that: The second positioning component (4) is a first pressing component assembly (41) in a circular array and slidably arranged on the bottom assembly placement platform (2) or a lifting and pressing assembly (42) detachably arranged on the axis positioning assembly (3).

4. The combustion chamber bottom assembly welding jig according to claim 3, characterized in that: The second positioning component (4) is a first pressure piece assembly (41); the first pressure piece assembly (41) includes a first clamping base (411) provided with a long through hole; a first positioning pin (412) is screwed on the first clamping base (411) in the vertical direction, and the first positioning pin (412) is located directly above the diamond-shaped positioning pin (22); a pull rod (413) is inserted into the first clamping base (411) in the horizontal direction; one end of the diamond-shaped positioning pin (22) is set in a diamond shape.

5. The combustion chamber bottom assembly welding jig according to claim 3, characterized in that: The second positioning component (4) is a lifting and clamping assembly (42); the lifting and clamping assembly (42) comprises an integrally formed lifting base (421); a fully welded pressure plate (422) is detachably mounted on the lifting base (421).

6. The combustion chamber bottom assembly welding jig according to claim 5, characterized in that: An L-shaped connecting protrusion is extended outwardly from the lifting base (421).

7. The combustion chamber bottom assembly welding jig according to claim 1, characterized in that: The axis positioning assembly (3) comprises a centering shaft (31) inserted on the bottom assembly placement platform (2); a clamping spring (32) is sleeved on the centering shaft (31); and an extrusion block (33) is screwed onto the centering shaft (31).

8. The combustion chamber bottom assembly welding jig according to claim 7, characterized in that: One end of the centering shaft (31) is arranged in a square shape.

9. The combustion chamber bottom assembly welding jig according to claim 1, characterized in that: An adjusting needle is screwed onto the welding base (1).

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