Machining tool for engine exhaust nozzle welding assembly

Abstract

The utility model discloses an engine exhaust nozzle welding assembly machining tool which comprises a lower supporting tool, an auxiliary attaching block for exerting lower pressing force on a part is installed in the lower supporting tool, an upper fixing block for fixing the part is installed on the lower supporting tool, a damping block for supporting the upper wall of the part is installed on the auxiliary attaching block, and the damping block is installed on the lower supporting tool. According to the utility model, the original mode that AB glue is used for local shock absorption can be replaced, the defects of glue coating and glue removing of the part are overcome, the number of knife shaking lines in the part machining process is reduced, reference and stable clamping are provided for the part, the machining efficiency is improved, the production cost is reduced, and the production efficiency is improved. And the stress released by the part during cutting is effectively reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of engine tail nozzle clamping tooling, and specifically relates to a machining device for an engine tail nozzle welding assembly. Background Art

[0002] The engine tail nozzle welding assembly needs to be clamped and fixed by a tool during processing. In order to achieve the purpose of local vibration reduction, AB glue needs to be applied between the engine tail nozzle welding assembly and the tool. However, the time required to apply glue before processing the engine tail nozzle welding assembly and to remove glue after processing is long, which affects work efficiency. Therefore, a machining device for the engine tail nozzle welding assembly is proposed. Utility Model Content

[0003] The purpose of the utility model is to provide a machining device for an engine tail nozzle welding assembly to solve the problems raised in the above background technology.

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a machining device for an engine tail nozzle welding assembly, comprising a lower supporting tooling, an auxiliary shape fitting block for applying a downward pressing force to the part is installed inside the lower supporting tooling, an upper fixing block for fixing the part is installed on the lower supporting tooling, a shock-absorbing block for supporting the upper wall of the part is installed on the auxiliary shape fitting block, and an adjustable support column for exerting a pushing force on the part is installed on the lower supporting tooling.

[0005] Preferably, there are multiple support columns, which are screwed onto the lower support fixture, and the ends of the support columns extend into the interior of the lower support fixture to contact the surface of the part.

[0006] Preferably, a positioning column is installed inside the lower supporting tooling, and the auxiliary shape fitting block is positioned by the positioning column, and the upper surface of the auxiliary shape fitting block is flat.

[0007] Preferably, a slot for mounting a shock-absorbing block is provided on the upper surface of the auxiliary shape-fitting block, and a pressing plate is provided in the slot to clamp the shock-absorbing block in the slot through the pressing plate.

[0008] Preferably, an auxiliary shape pressing plate is installed on the auxiliary shape fitting block to provide a pressing force to the auxiliary shape fitting block.

[0009] Compared with the prior art, the beneficial effects of the present invention are: a machining device for an engine tail nozzle welding assembly, which can fix parts by setting a lower support tooling and an upper fixing block, and can press the inner wall of the part by setting an auxiliary fitting block, and can provide a pressing force for the part by cooperating with the auxiliary fitting block and the auxiliary pressure plate, firmly fixing the part on the lower supporting tooling, and providing a good shock-absorbing effect at the same time, and can provide a support effect for the upper wall of the part by setting a shock-absorbing block, and prevent the occurrence of chatter marks during the processing, and can support the part by twisting the support columns at different positions to prevent movement during the processing, and the present invention can replace the original local shock absorption by AB glue, improve the disadvantages of gluing and degluing parts, not only reduces the occurrence of chatter marks during the processing of parts, provides a benchmark and stable clamping for parts, improves the processing efficiency, but also effectively reduces the stress released by parts during cutting. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] FIG1 is a schematic diagram of the overall structure of the utility model.

[0011] FIG2 is a partial disassembled diagram of the structure of the present invention.

[0012] In the figure: 1-lower supporting tooling, 2-auxiliary forming fitting block, 3-upper fixing block, 4-shock absorbing block, 5-support column, 6-positioning column, 7-slot, 8-tightening pressure plate, 9-auxiliary forming pressure plate. DETAILED DESCRIPTION

[0013] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0014] Please refer to Figures 1-2. The present invention provides a technical solution: a machining device for an engine tail nozzle welding assembly, including a lower supporting tool 1, an auxiliary shape-fitting block 2 for applying a downward pressing force to the part is installed inside the lower supporting tool 1, an upper fixing block 3 for fixing the part is installed on the lower supporting tool 1, a shock-absorbing block 4 for supporting the upper wall of the part is installed on the auxiliary shape-fitting block 2, and an adjustable support column 5 for exerting a pushing force on the part is installed on the lower supporting tool 1.

[0015] There are five support columns 5 , which are screwed onto the lower support fixture 1 and evenly arranged on the same horizontal line. The ends of the support columns 5 extend into the interior of the lower support fixture 1 and contact the surface of the part.

[0016] A positioning column 6 is installed inside the lower supporting fixture 1, and the auxiliary shape fitting block 2 is positioned by the positioning column 6. The upper surface of the auxiliary shape fitting block 2 is flat.

[0017] The bottom of the auxiliary shape-fitting block 2 is provided with a positioning groove that matches the positioning column 6. When the auxiliary shape-fitting block 2 is placed in the lower supporting fixture 1, the positioning column 6 enters the positioning groove.

[0018] The upper surface of the auxiliary shape fitting block 2 is provided with a slot 7 for mounting the shock absorbing block 4 , and a pressing plate 8 is provided in the slot 7 , which clamps the shock absorbing block 4 in the slot 7 through the pressing plate 8 .

[0019] A strip opening is provided on the tightening pressure plate 8, and the tightening pressure plate 8 is fixed in the slot 7 by passing bolts through the strip opening. When tightening the shock-absorbing block 4, the shock-absorbing block 4 is placed in the slot 7 so that it is located between the edge of the slot 7 and the tightening pressure plate 8, and the shock-absorbing block 4 is fit with the edge of the slot 7. Then, the position of the tightening pressure plate 8 is adjusted so that its side wall is fit with the shock-absorbing block 4, and then the tightening pressure plate 8 is fixed by bolts so that the shock-absorbing block 4 is tightened in the slot 7 to prevent the shock-absorbing block 4 from moving forward or backward.

[0020] An auxiliary shape pressing plate 9 is mounted on the auxiliary shape fitting block 2 , and an extended end of the auxiliary shape pressing plate 9 extends outside the lower supporting fixture 1 to provide a pressing force to the auxiliary shape fitting block 2 .

[0021] Working principle: When the present invention is used, the part is placed on the lower supporting tooling 1, and then the auxiliary fitting block 2 is placed on the positioning column 6 in the lower supporting tooling 1. The auxiliary fitting block 2 provides a downward pressing force on the lower end of the inner wall of the part, and then the shock-absorbing block 4 is placed in the slot 7. Then the position of the top clamping plate 8 is adjusted so that the shock-absorbing block 4 fits with the slot 7 and the top clamping plate 8 respectively, and then the top clamping plate 8 is fixed in the slot 7. The upper end of the shock-absorbing block 4 provides support for the upper wall of the part, and then the upper fixing block 3 is fixed to the lower supporting tooling 1 by bolts to fix the part, and then the support column 5 is screwed so that the support column 5 contacts the surface of the part to support it, thereby completing the clamping of the part.

[0022] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A machining device for an engine tail nozzle welding assembly, characterized in that: The invention comprises a lower supporting tool (1), wherein an auxiliary shape fitting block (2) for applying a downward pressing force to a part is installed inside the lower supporting tool (1), an upper fixing block (3) for fixing the part is installed on the lower supporting tool (1), a shock absorbing block (4) for supporting the upper wall of the part is installed on the auxiliary shape fitting block (2), and an adjustable support column (5) for applying a pushing force to the part is installed on the lower supporting tool (1).

2. The engine tail nozzle welding assembly machining device according to claim 1, characterized in that: There are a plurality of support columns (5) which are screwed onto the lower support fixture (1), and the ends of the support columns (5) extend into the interior of the lower support fixture (1) to contact the surface of the part.

3. The engine tail nozzle welding assembly machining device according to claim 1, characterized in that: A positioning column (6) is installed inside the lower support tooling (1), and the auxiliary shape fitting block (2) is positioned by the positioning column (6), and the upper surface of the auxiliary shape fitting block (2) is flat.

4. The engine tail nozzle welding assembly machining device according to claim 3, characterized in that: The upper surface of the auxiliary shape fitting block (2) is provided with a slot (7) for mounting the shock-absorbing block (4), and a pressing plate (8) is provided in the slot (7), and the shock-absorbing block (4) is clamped in the slot (7) by the pressing plate (8).

5. The engine tail nozzle welding assembly machining device according to claim 1, characterized in that: An auxiliary shape pressing plate (9) is mounted on the auxiliary shape fitting block (2) for providing a pressing force to the auxiliary shape fitting block (2).

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