Special tool for milling gas turbine race

Abstract

The utility model provides a special tool for milling a gas turbine race. The special tool comprises a base plate, a positioning boss, an angle pressing plate, an elastic pressing plate, a sliding block and an alignment reference, a seat ring is placed in the base plate and abuts against the positioning boss, and the sliding block is pushed through the bolt to apply lateral force to the seat ring. The protective elastic pressing plate is installed in an inner cavity of the seat ring and connected with the base plate through bolts to tightly press the seat ring. The angle pressing plate is connected with the base plate through a bolt to tightly press the angle face of the seat ring. The utility model not only solves the problem that the part is difficult to position and clamp, but also simplifies the work of an operator, ensures the standard consistency of the operator, simultaneously improves the production efficiency and creates economic benefits. According to the non-machining surface of the seat ring, quick positioning, tool reference alignment and position fixing can be achieved, and all machining can be completed through one-time clamping.

Description

Technical Field

[0001] The utility model belongs to the field of milling machining of gas turbine seat rings, and particularly relates to a special tooling for milling machining of gas turbine seat rings. Background Art

[0002] As the core component of the combustion chamber, the flame tube of a gas turbine is the place where combustion is organized. When the engine starts, after the mixed gas is ignited by the starting nozzle, the flame of the combusted gas serves as an ignition source to ignite the fresh mixed gas, so that the mixed gas keeps burning continuously in the combustion chamber. The combusted gas flows to the turbine to continuously output energy. The flame tube is a high-temperature component with extremely severe working conditions, so it must have sufficient strength and service life. The seat ring made of cast superalloy material is an important part of the flame tube. The shape of the seat ring is complex. Before traditional milling machining, the reference needs to be aligned, and internal and external inverted pressing plates are required for machining during processing. Summary of the Utility Model

[0003] The purpose of the utility model is to provide a special tooling for milling machining of gas turbine seat rings, which solves the problems existing in the milling process of the seat ring of the flame tube group in the current gas turbine, such as complex part structure, irregular profile line not easy to locate, and the need for inverted pressing plates for part machining during the milling process.

[0004] A special tooling for milling machining of gas turbine seat rings includes a base plate, a positioning boss, an angle pressing plate, an elastic pressing plate, a slider and an alignment reference; the seat ring is placed in the base plate and abuts against the positioning boss, and a lateral force is applied to the seat ring by pushing the slider through a bolt; the protective elastic pressing plate is installed in the inner cavity of the seat ring and presses the seat ring through a bolt connecting the base plate; the angle pressing plate presses the angle surface of the seat ring through a bolt connecting the base plate.

[0005] Furthermore, the alignment reference presses the seat ring on the workbench surface to achieve one-time machining forming during the machining process.

[0006] The beneficial effects of the utility model are as follows: The utility model not only solves the problem of difficult positioning and clamping of parts, but also simplifies the work of operators, ensures the standard consistency of operators, improves production efficiency and creates economic benefits at the same time. The utility model can quickly locate according to the non-machined surface of the seat ring, align the reference of the tooling, fix the position, and complete all machining with one clamping. Description of the Drawings

[0007] Figure 1 It is a structural view of the utility model;

[0008] Figure 2 It is a rear view after the structure of the utility model is assembled; Detailed Embodiment

[0009] The following further describes the utility model with reference to the drawings.

[0010] As Figure 1 - Figure 2 shown, a special fixture for milling the seat ring of a gas turbine is composed of a positioning device, a pressing device, and an alignment reference, which are three parts. The three parts include a base plate 1, a positioning boss 2, an angle pressing plate 3, an elastic pressing plate 4, a slider 5, a bolt 6, and an alignment reference 7. The seat ring is placed in the base plate 1 and abuts against the positioning boss 2. The slider 5 is pushed by the bolt 6 to apply a lateral force to the seat ring to prevent the seat ring from moving left and right on the positioning boss 2. The elastic pressing plate 4 is placed in the inner cavity of the seat ring, and the base plate 1 is connected by the bolt 6 to press the seat ring. The angle pressing plate 3 is connected to the base plate 1 by the bolt 6 to press the angle surface of the seat ring, so as to apply a positive force to the seat ring to make the seat ring closely adhere to the positioning boss 2, preventing the seat ring from moving during the processing and causing deviations in the parts. Through the alignment reference 7, it is pressed on the workbench surface to achieve one-time processing and forming during the processing, realize repeated processing of the seat ring, and achieve mass production.

[0011] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A special tool for milling a gas turbine seat ring, characterized in that: It comprises a base plate (1), a positioning boss (2), an angle pressure plate (3), an elastic pressure plate (4), a slider (5) and an alignment reference (7); a seat ring is placed in the base plate (1) and is close to the positioning boss (2), and the slider (5) is pushed by a bolt (6) to give a lateral force to the seat ring; the elastic pressure plate (4) is installed in the inner cavity of the seat ring and is connected to the base plate (1) by a bolt (6) to press the seat ring; the angle pressure plate (3) is connected to the base plate (1) by a bolt (6) to press the angle surface of the seat ring.

2. A special tool for milling a gas turbine seat ring according to claim 1, characterized in that: The alignment reference (7) presses the seat ring tightly onto the work surface, achieving one-step processing and forming during the processing.

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