Welding clamp for exhaust nozzle assembly

Abstract

The utility model relates to a welding fixture for an exhaust nozzle assembly. The welding fixture comprises a welding base, a placing platform is adjustably mounted on the welding base; a profiling positioning shaft assembly is coaxially and detachably mounted at the top of the placement platform; a positioning assembly is movably arranged on the placing platform; wherein during welding, the positioning assembly is inserted into the inner side of the profiling positioning shaft assembly for positioning and clamping. Through the design of the adjustably-installed placing platform, the profiling positioning shaft assembly, the movable positioning assembly and the like, accurate positioning and firm clamping of the exhaust nozzle assembly can be achieved, and the welding requirements of assemblies of different specifications are met.

Description

Technical Field

[0001] The utility model relates to the technical field of welding tooling fixtures, in particular to a welding fixture for a tail pipe assembly. Background Art

[0002] Traditional welding methods for tail pipe assemblies often have the following problems: First, the positioning is inaccurate, it is difficult to ensure the relative position accuracy of each part during the welding process, which easily leads to welding deviations and affects the performance and sealing of the tail pipe; Second, there is a lack of effective clamping devices, and the parts are prone to displacement during the welding process, affecting the welding quality; Third, the versatility and adjustability of the welding fixture are poor, and it cannot meet the welding requirements of different models of tail pipe assemblies, increasing the production cost and production cycle. Summary of the Invention

[0003] The purpose of the utility model is to provide a welding fixture for a tail pipe assembly, which can achieve precise positioning and firm clamping of the tail pipe assembly through the design of an adjustable mounting placement platform, a profiling positioning shaft assembly, and a movable positioning assembly, etc., meet the welding requirements of different specifications of assemblies, and provide a strong guarantee for the high-quality welding of the tail pipe assembly, so as to solve the above technical problems.

[0004] To achieve the above technical solution, the technical solution of the utility model is as follows: A welding fixture for a tail pipe assembly includes a welding base; an adjustable mounting placement platform is arranged on the welding base; a profiling positioning shaft assembly is coaxially and detachably mounted on the top of the placement platform; a positioning assembly is movably arranged on the placement platform; wherein: during welding, the positioning assembly is inserted into the inner side of the profiling positioning shaft assembly for positioning and clamping.

[0005] Further, the welding base includes a welding bottom plate; a connecting base is inserted on the welding bottom plate; adjusting rods are screwed on the periphery of the connecting base; an air inlet nozzle is arranged on the connecting base.

[0006] Further, a concave columnar cavity is arranged on the connecting base; the air inlet nozzle is communicated with the cavity.

[0007] Further, the placement platform includes a platform bottom plate, a diamond-shaped positioning pin is inserted on the platform bottom plate; pressing plates are arranged on the platform bottom plate in a circumferential array and can be adjusted radially; an elastic member is arranged between the pressing plates and the platform bottom plate.

[0008] Further, one end of the pressing plate is provided with an arc, and a pressing portion is integrally formed at the other end; one end of the pressing portion is inclined; a through long strip hole is arranged on the pressing portion.

[0009] Furthermore, the profiling positioning shaft assembly includes a first columnar portion; a square-shaped positioning portion is provided on one side of the first columnar portion, and a frustum portion is provided on the other side; a second columnar portion extends outward from one side of the frustum portion; a first support ring, a second support ring, and a third support ring are provided on the circumferential side of the second columnar portion; the third support ring is frustum-shaped.

[0010] Furthermore, an air inlet passage communicating with the welding base is provided on the profiling positioning shaft assembly.

[0011] Furthermore, the positioning assembly includes a positioning bracket adjustably mounted on the placement platform; a positioning pin adjusting seat is detachably mounted at one end of the positioning bracket; a positioning pin is screwed onto the positioning pin adjusting seat; positioning pins are symmetrically provided on the positioning pin adjusting seat.

[0012] Furthermore, the positioning bracket includes a Z-shaped base provided with a second long rectangular hole; an installation portion is obliquely provided outward at one end of the Z-shaped base.

[0013] Compared with the prior art, the present utility model has the following beneficial effects:

[0014] 1) The present utility model can effectively improve the welding accuracy:

[0015] The placement platform is adjustably mounted on the welding base and can adjust its position and angle according to different welding requirements, ensuring that the tail nozzle assembly is in the best welding position during the welding process and improving the welding accuracy. The profiling positioning shaft assembly is coaxial with the placement platform and is detachably mounted, capable of accurately positioning the shape and position of the tail nozzle assembly, preventing displacement during the welding process, and ensuring the accuracy and quality of the welded joint. The positioning assembly is movably arranged on the placement platform and is inserted into the inner side of the profiling positioning shaft assembly for positioning and clamping during welding, which can further enhance the positioning accuracy of the tail nozzle assembly and improve the welding accuracy.

[0016] 2) The present utility model can improve the applicability of the fixture:

[0017] The connection base on the welding base is adjustably mounted through an adjusting rod, capable of adapting to the welding requirements of tail nozzle assemblies of different sizes and shapes. The pressing plate on the placement platform can be adjusted radially and provides a certain elastic pressure through an elastic member, capable of adapting to the clamping requirements of tail nozzle assemblies of different diameters. Different shaped parts (such as the square-shaped positioning portion, frustum portion, etc.) of the profiling positioning shaft assembly can adapt to the positioning requirements of different types of tail nozzle assemblies. The positioning bracket of the positioning assembly is adjustably mounted, the positioning pin adjusting seat is detachably mounted, and the positioning pin and positioning pins can be adjusted according to different tail nozzle assemblies, enhancing the applicability of the welding fixture.

[0018] 3) The present utility model can improve the welding efficiency:

[0019] This welding fixture can quickly and accurately position and clamp the tail nozzle assembly, reducing the preparation time and adjustment time before welding and improving the welding efficiency. The adjustability and detachable nature of each component make the installation and disassembly of the welding fixture more convenient and rapid, saving operation time. The design of the positioning component enables quick and accurate positioning and clamping, reducing the adjustment time during the welding process and improving the welding efficiency.

[0020] 4) The present utility model can ensure the welding quality:

[0021] The welding fixture can firmly fix the tail nozzle assembly, preventing displacement and deformation during the welding process, and ensuring the quality and strength of the welded joint. The accurate positioning of the profiling positioning shaft assembly and the positioning component can ensure the accurate relative position of each component during welding, avoiding the generation of welding deviations and defects, and ensuring the welding quality. The elastic clamping of the pressure plate and the stable positioning of the positioning component can reduce the vibration and shaking during the welding process and improve the welding quality.

[0022] 5) The present utility model is convenient to operate:

[0023] Each component of this welding fixture is reasonably designed and easy to operate. It can be quickly installed, adjusted and disassembled, improving the work efficiency. The air inlet nozzle on the welding base and the air inlet channel on the profiling positioning shaft assembly can be conveniently connected to the air source to dissipate heat during the welding process, and the operation is convenient and rapid. The design of the diamond-shaped positioning pins on the placement platform and the pressure plate makes the installation of the tail nozzle assembly more stable and convenient, improving the operation convenience. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] To further illustrate each embodiment, the present utility model provides drawings. These drawings are 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.

[0025] Figure 1 It is a three-dimensional structural schematic diagram of the welding fixture for the tail nozzle assembly;

[0026] Figure 2 It is a front view of the welding fixture for the tail nozzle assembly. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0027] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying 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 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.

[0028] 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 in conjunction with the accompanying drawings and specific embodiments.

[0029] Please refer to the attached Figures 1 to 2 As shown: A welding fixture for a tail pipe assembly includes a welding base 1; a placement platform 2 is adjustably installed on the welding base 1; a profiling positioning shaft assembly 3 is coaxially and detachably installed on the top of the placement platform 2; a positioning assembly 4 is movably arranged on the placement platform 2; wherein: during welding, the positioning assembly 4 is inserted into the inner side of the profiling positioning shaft assembly 3 for positioning and clamping. In the present utility model, the placement platform is adjustably installed on the welding base, and can adjust the position and angle according to different welding requirements, ensuring that the tail pipe assembly is in the best welding position during the welding process, and improving the welding accuracy. The profiling positioning shaft assembly is coaxially and detachably installed with the placement platform, and can accurately position the shape and position of the tail pipe assembly, preventing displacement during the welding process, and ensuring the accuracy and quality of the welding joint. The positioning assembly is movably arranged on the placement platform, and is inserted into the inner side of the profiling positioning shaft assembly for positioning and clamping during welding, which can further enhance the positioning accuracy of the tail pipe assembly and improve the accuracy of welding.

[0030] Based on the above embodiments, the welding base 1 includes a welding bottom plate 11; a connecting base 12 is inserted on the welding bottom plate 11; adjusting rods 13 are screwed on the periphery of the connecting base 12; an air inlet nozzle 14 is arranged on the connecting base 12.

[0031] Based on the above embodiments, the connecting base 12 is provided with an inner concave columnar cavity; the air inlet nozzle 14 is communicated with the cavity.

[0032] Based on the above embodiments, the placement platform 2 includes a platform bottom plate 21, a diamond positioning pin 22 is inserted on the platform bottom plate 21; pressing plates 23 are arranged in a circumferential array on the platform bottom plate 21 and can be adjusted radially; an elastic member 24 is arranged between the pressing plates 23 and the platform bottom plate 21.

[0033] Based on the above embodiments, one end of the pressing plate 23 is provided with an inverted arc, and the other end is integrally formed with a pressing part; one end of the pressing part is inclined; a through long strip hole is arranged on the pressing part.

[0034] Based on the above embodiments, the profiling positioning shaft assembly 3 includes a first columnar portion 31; a square-shaped positioning portion 32 is provided on one side of the first columnar portion 31, and a frustum portion 33 is provided on the other side; a second columnar portion 34 extends outward from one side of the frustum portion 33; a first support ring, a second support ring, and a third support ring are provided on the circumferential side of the second columnar portion 34; the third support ring is frustum-shaped.

[0035] Based on the above embodiments, an air inlet passage communicating with the welding base 1 is provided on the profiling positioning shaft assembly 3.

[0036] Based on the above embodiments, the positioning assembly 4 includes a positioning bracket 41 adjustably mounted on the placement platform 2; a positioning needle adjusting seat 42 is detachably mounted at one end of the positioning bracket 41; a positioning needle 43 is screwed onto the positioning needle adjusting seat 42; positioning pins are symmetrically provided on the positioning needle adjusting seat 42.

[0037] Based on the above embodiments, the positioning bracket 41 includes a Z-shaped base provided with a second long rectangular hole; an installation portion is obliquely provided outward at one end of the Z-shaped base.

[0038] The specific use of the present utility model is as follows. Assembly of the welding fixture: Place the welding base plate 11 on a stable workbench, then insert the connecting base 12 into the welding base plate 11, and adjust the height and angle of the connecting base 12 through the adjusting rod 13. Install the platform base plate 21 of the placement platform 2 on the connecting base 12, and adjust the position and angle of the placement platform 2 as required. Install the profiling positioning shaft assembly 3 on the top of the placement platform 2 to make it coaxial with the placement platform 2, and ensure that the installation of the profiling positioning shaft assembly 3 is firm and reliable. Install the positioning bracket 41 of the positioning assembly 4 on the placement platform 2, and adjust the position and angle of the positioning bracket 41 as required. Then install the positioning pin adjusting seat 42 at one end of the positioning bracket 41, and install the positioning pin 43 and the positioning pin on the positioning pin adjusting seat 42. Installation and positioning of the tail nozzle assembly: Place the tail nozzle assembly on the profiling positioning shaft assembly 3 and perform preliminary positioning according to the shape and size of the profiling positioning shaft assembly 3. Further position and clamp the tail nozzle assembly by adjusting the diamond positioning pin 22 and the pressing plate 23 on the placement platform 2. Under the action of the elastic member 24, the pressing plate 23 can provide a certain clamping force to ensure that the tail nozzle assembly does not displace during the welding process. Insert the positioning pin 43 of the positioning assembly 4 into the inner side of the profiling positioning shaft assembly 3 to precisely position and clamp the tail nozzle assembly. The positioning pin can further enhance the accuracy and stability of the positioning. Welding operation: After the installation and positioning of the tail nozzle assembly are completed, check whether all components of the welding fixture are firm and reliable to ensure that the tail nozzle assembly does not displace during the welding process. Prepare the welding equipment and adjust the welding parameters to ensure the welding quality. Start the welding operation and perform welding according to the predetermined welding sequence and process. During the welding process, observe the welding situation and adjust the welding parameters in a timely manner to ensure the welding quality. Through the above solution, the present utility model has the following advantages: Precise positioning: The design of the profiling positioning shaft assembly and the positioning assembly can achieve precise positioning of the tail nozzle assembly, ensuring the accuracy and quality of the welding joint. Firm clamping: The pressing plate and elastic member on the placement platform, as well as the positioning pin and positioning pin of the positioning assembly, can provide a firm clamping force to prevent the tail nozzle assembly from displacing during the welding process. Strong adjustability: The adjusting rod on the welding base, the diamond positioning pin and pressing plate on the placement platform, as well as the positioning bracket and positioning pin adjusting seat of the positioning assembly, can all be adjusted according to different tail nozzle assemblies, improving the versatility and adjustability of the welding fixture. Convenient operation: Each component of the welding fixture is reasonably designed, and the installation and disassembly are convenient and fast, improving the work efficiency.

[0039] The above are only the preferred embodiments of the present invention and do not impose any form of limitation on the present invention. Although the present invention has been disclosed as above with the preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art should be able to make equivalent embodiments of 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 based on the technical essence of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. A welding fixture for a tail pipe assembly, characterized in that, It includes a welding base (1); a placement platform (2) is adjustably mounted on the welding base (1); a profiling positioning shaft assembly (3) is coaxially and detachably mounted on the top of the placement platform (2); a positioning assembly (4) is movably arranged on the placement platform (2); wherein: during welding, the positioning assembly (4) is inserted into the inner side of the profiling positioning shaft assembly (3) for positioning and clamping.

2. The welding fixture for the tail nozzle assembly according to claim 1, characterized in that: The welding base (1) includes a welding base plate (11); a connecting base (12) is inserted into the welding base plate (11); adjusting rods (13) are screwed on the peripheral side of the connecting base (12); an air inlet nozzle (14) is arranged on the connecting base (12).

3. The welding fixture for the tail nozzle assembly according to claim 2, wherein: A concave columnar cavity is arranged on the connecting base (12); the air inlet nozzle (14) communicates with the cavity.

4. The welding jig for the tail pipe assembly according to claim 1, characterized in that: The placement platform (2) includes a platform base plate (21), and a diamond-shaped positioning pin (22) is inserted into the platform base plate (21); pressing plates (23) are arranged in a circumferential array on the platform base plate (21) and can be adjusted radially; an elastic member (24) is arranged between the pressing plates (23) and the platform base plate (21).

5. The welding fixture for the tail nozzle assembly according to claim 4, characterized in that: One end of the pressing plate (23) is provided with an inverted arc, and a pressing part is integrally formed at the other end; one end of the pressing part is inclined; a through long strip hole is arranged on the pressing part.

6. The welding fixture for the tail pipe assembly according to claim 1, characterized in that: The profiling positioning shaft assembly (3) includes a first columnar part (31); a square-shaped positioning part (32) is arranged on one side of the first columnar part (31), and a frustum part (33) is arranged on the other side; a second columnar part (34) extends outward on one side of the frustum part (33); a first support ring, a second support ring and a third support ring are arranged on the peripheral side of the second columnar part (34); the third support ring is frustum-shaped.

7. The welding fixture for the tail nozzle assembly according to claim 1, wherein: An air inlet channel communicating with the welding base (1) is arranged on the profiling positioning shaft assembly (3).

8. The welding fixture for the tail pipe assembly according to claim 1, wherein: The positioning assembly (4) includes a positioning bracket (41) adjustably mounted on the placement platform (2); a positioning needle adjusting seat (42) is detachably mounted at one end of the positioning bracket (41); a positioning needle (43) is screwed on the positioning needle adjusting seat (42); positioning pins are symmetrically arranged on the positioning needle adjusting seat (42).

9. The welding fixture for the tail pipe assembly according to claim 8, wherein: The positioning bracket (41) includes a Z-shaped base provided with a second long strip hole; an installation part is arranged obliquely outward at one end of the Z-shaped base.

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