Combustion chamber inner cylinder assembly welding clamp

Abstract

The utility model relates to a combustion chamber inner cylinder assembly welding clamp, which comprises a welding clamp base, and is characterized by further comprising a placing table assembly which is adjustably inserted on the welding clamp base; the clamping assembly is detachably arranged on the placing table assembly in an inserted mode, and the clamping assembly can deform and clamp in the radial direction when being screwed; and the positioning assembly is movably arranged on the placing table assembly. The placing table assembly is adjustably inserted in the welding clamp base, the position and the angle can be adjusted according to different welding requirements, it is ensured that the combustion chamber inner cylinder assembly is located at the optimal welding position in the welding process, and the welding precision is improved.

Description

Technical Field

[0001] This utility model relates to the field of tooling and fixture technology, and in particular to a welding fixture for a combustion chamber cylinder assembly. Background Technology

[0002] During the welding of the combustion chamber inner cylinder assembly, the metal in the weld seam and the heated area near the weld seam expands. Because the surrounding cooler metal resists this expansion, compressive stress and plastic shrinkage deformation easily occur in the welding area, resulting in varying degrees of lateral and longitudinal shrinkage. During the welding of the assembly, multiple welding thermal cycles occur. If the welding process parameters are not properly controlled, and the local temperature is too high, it will lead to surface oxidation of the material, reducing the corrosion resistance of the joint. In severe cases, it can cause overheating of the joint and nearby base material, drastically reducing the metal's corrosion resistance. During the welding process, while ensuring weld quality, the heat input should be minimized, and multi-layer, multi-pass welding should be used, with the inter-pass temperature controlled at a low level. The inner wall of the sleeve is easily oxidized due to the high temperature, and in severe cases, blackening of the back side occurs. Therefore, protective measures should be taken for the inner wall of the sleeve before welding. Furthermore, when welding individual combustion chamber guide sleeves, welding fixtures should be used for positioning to fix the welded component in a reliable position, solving the problems of large deformation during component assembly welding, high labor intensity for welders, and low production efficiency. Summary of the Invention

[0003] The purpose of this utility model is to provide a welding fixture for combustion chamber cylinder assembly that can fix welding parts in a reliable position with high accuracy, is easy to operate, and makes the welding position dimensions meet the design requirements, so as to solve the above-mentioned technical problems.

[0004] To achieve the above technical solution, the technical solution of this utility model is as follows: a welding fixture for a combustion chamber cylinder assembly, comprising a welding fixture base, characterized in that the combustion chamber cylinder assembly welding fixture further comprises: a placement platform assembly, adjustablely inserted into the welding fixture base; a clamping assembly, detachably inserted into the placement platform assembly, wherein the clamping assembly can deform radially to clamp when screwed; and a positioning assembly, movably disposed on the placement platform assembly.

[0005] Furthermore, the positioning component includes a positioning support plate movably inserted into the placement platform assembly; a central positioning pin is retractably inserted into the positioning support plate in the horizontal direction; a second positioning support is adjustablely installed on one side of the positioning support plate; and an inclined upper positioning pin is screwed onto one end of the second positioning support.

[0006] Furthermore, the positioning support plate includes a T-shaped socket; an L-shaped mounting bracket is provided on the top of the T-shaped socket near the left side; a through-hole is provided on one side of the L-shaped mounting bracket; the T-shaped socket and the L-shaped mounting bracket are integrally formed; a plug extends outward from one end of both the middle positioning pin and the upper positioning pin; the diameter of the plug is much smaller than the diameter of the middle positioning pin / the upper positioning pin.

[0007] Furthermore, the clamping assembly includes a central positioning shaft coaxially arranged with the placement platform assembly; a clamping spring is sleeved on the central positioning shaft; a frustum-shaped pressure sleeve is provided at one end of the central positioning shaft; when the pressure sleeve moves downward along the central positioning shaft, it can drive one end of the clamping spring to expand radially outward; an upper pressure plate is movably provided above the pressure sleeve.

[0008] Furthermore, the central positioning shaft is provided with a vent hole communicating with the welding fixture base; the central positioning shaft is provided with a second air inlet hole communicating with the pressure sleeve in a radial array; the clamping spring is provided with a deformation groove in a circumferential array; the clamping spring is barrel-shaped and has a pressing slope at one end; the pressure sleeve is provided with a third air inlet hole in a circumferential array.

[0009] Furthermore, the placement platform assembly is adjustable and can be inserted into the welding fixture base via an adjusting rod; the top of the placement platform assembly is provided with a circumferential array of positioning sleeves; a diamond-shaped positioning pin is screwed onto the placement platform assembly; the diamond-shaped positioning pin is set in the same plane as the positioning assembly.

[0010] Furthermore, an air nozzle is screwed onto one side of the welding fixture base for sealing.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] 1) This utility model can effectively improve welding precision:

[0013] The placement platform assembly is adjustable and inserted into the welding fixture base, allowing for adjustments to its position and angle according to different welding requirements. This ensures the combustion chamber cylinder assembly is in the optimal welding position during the welding process, improving welding accuracy. The clamping assembly is detachably inserted into the placement platform assembly and can deform radially when screwed on, firmly fixing the combustion chamber cylinder assembly and preventing displacement during welding, thus ensuring the accuracy and quality of the weld joint. The positioning assembly is movable and mounted on the placement platform assembly, accurately positioning the combustion chamber cylinder assembly and ensuring the accurate relative positions of each component during welding, further improving welding accuracy.

[0014] 2) This utility model can enhance applicability:

[0015] The positioning assembly includes components such as a positioning support plate, a central positioning pin, an upper positioning pin, and a second positioning support. These components can be adjusted and installed according to the shape and size of different combustion chamber cylinder assemblies to meet the welding requirements of combustion chamber cylinder assemblies of different specifications. The clamping assembly includes components such as a central positioning shaft, clamping spring, pressure sleeve, and upper pressure plate, which can be adjusted and replaced according to the size of the combustion chamber cylinder assembly to meet the clamping requirements of combustion chamber cylinder assemblies of different diameters. The placement platform assembly can be adjusted and inserted into the welding fixture base via an adjusting rod, and its top circumferential array is equipped with positioning pressure sleeves and diamond-shaped positioning pins, which can be adjusted and installed according to different welding processes and requirements, enhancing the applicability of the welding fixture.

[0016] 3) This invention can improve welding efficiency:

[0017] This welding fixture can quickly and accurately position and clamp the combustion chamber cylinder assembly, reducing preparation and adjustment time before welding and improving welding efficiency. The clamping assembly deforms radially during tightening, making operation simple and quick, and enabling rapid fixation of the combustion chamber cylinder assembly, thus improving welding efficiency. The positioning assembly is movable on the placement platform assembly, allowing for rapid adjustment and positioning according to different welding positions, reducing adjustment time during welding and further improving welding efficiency.

[0018] 4) This utility model can guarantee welding quality:

[0019] The welding fixture securely holds the combustion chamber cylinder assembly, preventing displacement and deformation during welding and ensuring the quality and strength of the weld joint. The positioning assembly accurately positions the combustion chamber cylinder assembly, ensuring the precise relative positioning of each component during welding, avoiding welding deviations and defects, and guaranteeing weld quality. The design of the clamping and positioning assemblies ensures the stability and reliability of the combustion chamber cylinder assembly during welding, reducing vibration and shaking, and improving weld quality.

[0020] 5) This utility model is convenient and quick to operate:

[0021] The welding fixture features a rationally designed structure, simple and convenient operation, and allows for quick installation, adjustment, and disassembly, thus improving work efficiency. A sealed air nozzle is screwed onto one side of the fixture base, allowing for easy connection to an air source for cooling during welding, making operation convenient and quick. The simple structure of the placement platform assembly, clamping assembly, and positioning assembly facilitates maintenance and reduces operating costs. Attached Figure Description

[0022] To further illustrate the various embodiments, the present invention provides accompanying drawings. These drawings are part of the disclosure of the present invention and are mainly used to illustrate the embodiments, and can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these drawings, those skilled in the art should be able to understand other possible implementations and the advantages of the present invention. Components in the drawings are not drawn to scale, and similar component symbols are generally used to represent similar components.

[0023] Figure 1 An exploded view of the welding fixture for the combustion chamber cylinder assembly;

[0024] Figure 2 This is a front view of the welding fixture for the combustion chamber cylinder assembly. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] To enable those skilled in the art to better understand the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0027] Please see the appendix Figure 1The image shows a welding fixture for a combustion chamber cylinder assembly, comprising a welding fixture base 1, a placement platform assembly 2, a clamping assembly 3, and a positioning assembly 4. The welding fixture base 1 provides support for the installation of the placement platform assembly 2, the clamping assembly 3, and the positioning assembly 4. The placement platform assembly 2 is adjustablely inserted into the welding fixture base 1 for placing the part to be welded. The clamping assembly 3 is detachably inserted into the placement platform assembly 2 for radially clamping and positioning the part to be welded; the clamping assembly 3 deforms radially when screwed. The positioning assembly 4 is movably disposed on the placement platform assembly 2 for compressing one end of the clamping assembly 3 to induce deformation. The placement platform assembly of this utility model is adjustablely inserted into the welding fixture base, and its position and angle can be adjusted according to different welding requirements to ensure that the combustion chamber cylinder assembly is in the optimal welding position during the welding process, thereby improving welding accuracy. The clamping assembly is detachably inserted into the placement platform assembly, and can deform radially to clamp when screwed, which can firmly fix the combustion chamber cylinder assembly, prevent displacement during welding, and ensure the accuracy and quality of the weld joint. The positioning assembly is movable on the placement platform assembly, which can accurately position the combustion chamber cylinder assembly, ensuring that the relative positions of each component are accurate during welding, further improving welding accuracy.

[0028] Based on the above embodiments, the positioning component 4 includes a positioning support plate 41 that is movably inserted into the placement platform component 2; a middle positioning pin 42 is retractably inserted into the positioning support plate 41 along the horizontal direction; a second positioning support 43 is adjustablely installed on one side of the positioning support plate 41; and an inclined upper positioning pin 44 is screwed onto one end of the second positioning support 43.

[0029] Based on the above embodiments, the positioning support plate 41 includes a T-shaped socket; an L-shaped mounting bracket is provided on the top of the T-shaped socket near the left side; a through-hole is provided on one side of the L-shaped mounting bracket; the T-shaped socket and the L-shaped mounting bracket are integrally formed; a plug extends outward from one end of both the intermediate positioning pin 42 and the upper positioning pin 44; the diameter of the plug is much smaller than the diameter of the intermediate positioning pin 42 / the upper positioning pin 44.

[0030] Based on the above embodiments, the clamping assembly 3 includes a central positioning shaft 31 coaxially arranged with the placement platform assembly 2; a clamping spring 32 is sleeved on the central positioning shaft 31; a frustum-shaped pressure sleeve 33 is provided at one end of the central positioning shaft 31; when the pressure sleeve 33 moves along the central positioning shaft 31, it can drive one end of the clamping spring 32 to expand radially outward; an upper pressure plate 34 is movably provided above the pressure sleeve 33.

[0031] Based on the above embodiments, the central positioning shaft 31 is provided with a vent hole communicating with the welding fixture base 1; the central positioning shaft 31 is provided with a second air inlet hole communicating with the pressure sleeve 33 in a radial array; the clamping spring 32 is provided with a deformation groove in a circumferential array; the clamping spring 32 is barrel-shaped and has a pressing slope at one end; the pressure sleeve 33 is provided with a third air inlet hole in a circumferential array.

[0032] Based on the above embodiments, the placement platform assembly 2 is adjustable and inserted into the welding fixture base 1 via an adjusting rod; the top circumferential array of the placement platform assembly 2 is provided with positioning pressure sleeves; a diamond-shaped positioning pin is screwed onto the placement platform assembly 2; the diamond-shaped positioning pin and the positioning component 4 are arranged in the same plane.

[0033] Based on the above embodiments, a gas nozzle is screwed onto one side of the welding fixture base 1 for introducing airflow to rapidly cool the welding area.

[0034] In summary, the welding fixture features a rationally designed structure, simple and convenient operation, and allows for quick installation, adjustment, and disassembly, thus improving work efficiency. A sealed gas nozzle is screwed onto one side of the fixture base, facilitating easy connection to a gas source for cooling during welding, making operation convenient and quick. The simple structure of the placement platform assembly, clamping assembly, and positioning assembly facilitates maintenance and reduces operating costs.

[0035] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art should be able to make equivalent embodiments by making some changes or modifications to the above-disclosed technical content without departing from the scope of the present invention. Any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. A welding fixture for a combustion chamber cylinder assembly, comprising a welding fixture base (1), characterized in that, The welding fixture for the combustion chamber cylinder assembly further includes: a placement platform assembly (2), which is adjustablely inserted into the welding fixture base (1); a clamping assembly (3), which is detachably inserted into the placement platform assembly (2), and the clamping assembly (3) can deform radially to clamp when screwed; and a positioning assembly (4), which includes a positioning support plate (41) movably inserted into the placement platform assembly (2); a middle positioning pin (42) is retractably inserted into the positioning support plate (41) in the horizontal direction; a second positioning support (43) is adjustablely installed on one side of the positioning support plate (41); an inclined upper positioning pin (44) is screwed onto one end of the second positioning support (43); and a gas nozzle is screwed into one side of the welding fixture base (1) in a sealed manner.

2. The welding fixture for the combustion chamber cylinder assembly as described in claim 1, characterized in that: The positioning support plate (41) includes a T-shaped socket; an L-shaped mounting bracket is provided on the top of the T-shaped socket near the left side; a through-hole is provided on one side of the L-shaped mounting bracket; the T-shaped socket and the L-shaped mounting bracket are integrally formed; a plug extends outward from one end of both the middle positioning pin (42) and the upper positioning pin (44); the diameter of the plug is much smaller than the diameter of the middle positioning pin (42) / the upper positioning pin (44).

3. The welding fixture for the combustion chamber cylinder assembly as described in claim 1, characterized in that: The clamping assembly (3) includes a central positioning shaft (31) coaxially arranged with the placement platform assembly (2); a clamping spring (32) is sleeved on the central positioning shaft (31); a frustum-shaped pressure sleeve (33) is provided at one end of the central positioning shaft (31); when the pressure sleeve (33) moves along the central positioning shaft (31), it can drive one end of the clamping spring (32) to expand radially outward; an upper pressure plate (34) is movably provided above the pressure sleeve (33).

4. The welding fixture for the combustion chamber cylinder assembly as described in claim 3, characterized in that: The central positioning shaft (31) is provided with a vent hole that communicates with the welding fixture base (1); the central positioning shaft (31) is provided with a second air inlet hole that communicates with the pressure sleeve (33) in a radial array; the clamping spring (32) is provided with a deformation groove in a circumferential array; the clamping spring (32) is barrel-shaped and has a pressing slope at one end; the pressure sleeve (33) is provided with a third air inlet hole in a circumferential array.

5. The welding fixture for the combustion chamber cylinder assembly as described in claim 1, characterized in that: The placement platform assembly (2) can be adjusted and inserted into the welding fixture base (1) via an adjustment rod; the top circumferential array of the placement platform assembly (2) is provided with positioning pressure sleeves; a diamond-shaped positioning pin is screwed onto the placement platform assembly (2); the diamond-shaped positioning pin and the positioning assembly (4) are set in the same plane.

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