A method for positioning a high pressure turbine vane gate and a patch

Abstract

This invention discloses a method for positioning the gate and patch of a high-pressure turbine guide vane, comprising the following steps: creating a three-dimensional solid model of the turbine guide vane in three-dimensional software, and determining the positions of the gate and patch in the three-dimensional solid model; drawing a positioning fixture based on the three-dimensional solid model, and creating positioning notches at the positions of the positioning fixture where the gate and patch are located; and fabricating the positioning fixture using 3D printing technology. This invention, by setting a positioning fixture and creating positioning notches on it, ensures the accurate and reliable positioning of the gate and patch when welding the gate and patch by fitting the positioning fixture to the turbine guide vane and welding the gate and patch at the corresponding positioning notches. The method is simple, convenient, and efficient, improves the standardization of the gating system, reduces manual labor, increases work efficiency, ensures welding accuracy, increases product qualification rate, reduces production costs, ensures on-time delivery, and improves enterprise efficiency.

Description

Technical Field

[0001] This invention relates to the field of precision casting technology, and in particular to a method for positioning the gate and applicator of a high-pressure turbine guide vane. Background Technology

[0002] Turbines are a crucial component of aero engines, and the performance of turbine components directly determines and influences the overall performance of the engine. One of the main components of a turbine is the turbine blade. Turbine blades are among the most critical hot-end components in aero engines and gas turbines, operating under the harshest conditions. These components require excellent yield strength, endurance strength, and creep strength, among other qualities. Therefore, producing high-quality parts with strong performance in all aspects is particularly important. High-pressure turbine guide vanes consist of a large rim plate, a small rim plate, and the blade body. Designing a reasonable gating system is crucial for producing qualified parts. The gate and applicator in the gating system function to compensate for shrinkage, making their bonding position extremely critical. Currently, welding in the gating system is done manually during wax part production. Each person's gate welding position has deviations, directly affecting part quality; furthermore, determining the position of the gate and applicator for each welded part consumes more time and manpower, increases costs, and delays product delivery. Therefore, to improve this situation, this invention proposes a method for positioning the gate and applicator of high-pressure turbine guide vanes. Summary of the Invention

[0003] The main objective of this invention is to provide a positioning method for the gate and patch of a high-pressure turbine guide vane, which can effectively solve the problems in the background art.

[0004] To achieve the above objectives, the technical solution adopted by the present invention is as follows: a method for positioning a high-pressure turbine guide vane gate and a patch, comprising the following steps:

[0005] S1. Create a 3D solid model of the turbine guide vane in 3D software, and determine the positions of the gate and the abutment in the 3D solid model.

[0006] S2. Draw the positioning fixture based on the 3D solid model, and open the positioning notch at the position of the positioning fixture where the gate and the patch are located;

[0007] S3. Use 3D printing technology to create the positioning fixture in step S2.

[0008] Preferably, in step S1, the positions of the gate and the abutment in the three-dimensional solid model are determined according to the designed gating system.

[0009] Preferably, the positioning fixture in step S2 is a clamping plate structure, which is provided with various specifications to match the small edge plate and the large edge plate of the turbine guide vane.

[0010] Preferably, the card plate structure includes a first side panel, a second side panel, and an end plate. The first side panel, the second side panel, and the end plate form a groove-shaped structure, and a positioning notch is formed on the first side panel or the second side panel.

[0011] Preferably, the positioning notch includes a gate notch and a subsidy notch.

[0012] Preferably, the side panel is fitted to the side of the blade end of the turbine guide vane and has the same curvature as the blade.

[0013] Preferably, the second side panel is fitted to the inner surface of the turbine guide vane's rim diameter and has the same curvature as the rim.

[0014] Compared with traditional technologies, the beneficial effects of this invention are as follows: By setting a positioning fixture at the edge plate position of the turbine guide vane and opening a positioning notch on the positioning fixture, the positioning fixture is fitted to the turbine guide vane during the welding of the gate and patch, and the gate and patch are welded at the corresponding positioning notch. This ensures that the position of the gate and patch is accurate and reliable, and the operation is simple, convenient, and efficient. It improves the standardization of the gating system, reduces labor input, increases work efficiency, ensures welding accuracy, increases product qualification rate, reduces production costs, ensures on-time delivery, and improves enterprise benefits. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of an existing turbine guide vane;

[0016] Figure 2 This is a schematic diagram of a card plate structure according to the present invention;

[0017] Figure 3 This is a schematic diagram of another card plate structure of the present invention;

[0018] Figure 4 This is a schematic diagram of the card plate structure of the present invention attached to the turbine guide vane.

[0019] In the diagram: 1. Turbine guide vane; 101. Large rim plate; 102. Small rim plate; 103. Blade body; 2. Clamping plate structure; 201. Side panel one; 202. Side panel two; 203. End plate; 204. Gating notch; 205. Subsiding notch. Detailed Implementation

[0020] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0021] like Figure 1 As shown, a schematic diagram of a high-pressure turbine guide vane 1 is provided, which includes a large rim plate 101, a small rim plate 102, and a blade body 103. The positioning method of its gate and patch includes the following steps:

[0022] S1. When determining the gate and the abutment, create a three-dimensional solid model of the turbine guide vane 1 in three-dimensional software. Solidworks drawing software can be used for the three-dimensional software. Determine the position of the gate and the abutment in the three-dimensional solid model according to the designed gating system.

[0023] S2. Use 3D software to draw positioning fixtures on the 3D solid model, and make positioning notches at the gate and patch positions of the 3D solid model.

[0024] S3. Use 3D printing technology to manufacture the above-mentioned positioning fixture.

[0025] The positioning fixture is a clamping plate structure 2, and according to the requirements, the clamping plate structure 2 is provided with various specifications to match the small edge plate 102 and the large edge plate 101 of the turbine guide vane 1.

[0026] The card plate structure 2 includes a first side panel 201, a second side panel 202, and an end plate 203. The first side panel 201, the second side panel 202, and the end plate 203 form a groove-shaped structure. The positioning notch is opened on the first side panel 201 or the second side panel 202. The positioning notch includes a gate notch 204 and a subsidy notch 205.

[0027] In this example, the clamping structure 2 on the small edge plate 102 side of the turbine guide vane 1 is used as an example to illustrate the usage of the clamping structure 2, as follows:

[0028] like Figure 2 As shown, the clamping structure 2 is attached to the upper side of the small edge plate 102 of the turbine guide vane 1. Two subsidy notches 205 are opened on the first side panel 201, and a gate notch 204 is opened on the second side panel 202. The subsidy notches 205 correspond to the subsidies on the turbine guide vane 1, and the gate is welded at the gate notch 204.

[0029] like Figure 3 As shown, the clamping plate structure 2 is attached to the lower side of the small edge plate 102 of the turbine guide vane 1. A gate notch 204 is provided on the side panel 202, and a gate is welded at the gate notch 204.

[0030] like Figure 4As shown, the clamping structure 2 corresponding to the small edge plate 102 is attached to the upper side of the small edge plate 102 of the turbine guide vane 1, such that side panel 1 201 is attached to the end side of the upper side of the small edge plate 102, and the curvature of side panel 1 201 is consistent with the curvature of the upper side of the small edge plate 102. Side panel 202 is attached to the inner diameter surface of the upper side of the small edge plate 102, and the curvature of side panel 202 is consistent with the inner diameter curvature of the upper side of the small edge plate 102. End plate 203 is attached to one end face of the upper side of the small edge plate 102. A gate is welded at the gate notch 204, and a patch is welded at the patch notch 205. Then, the clamping structure 2 corresponding to the lower side of the small edge plate 102 is attached to the lower side of the small edge plate 102 of the turbine guide vane 1, such that side panel 201 is attached to the end side of the turbine guide vane 1, and the end plate 202 is attached to the end side ... Side plate 201 is fitted to the lower side of the small flange plate 102, and the curvature of side plate 201 is consistent with the curvature of the lower side of the small flange plate 102. Side plate 202 is fitted to the inner diameter of the lower side of the small flange plate 102, and the curvature of side plate 202 is consistent with the inner diameter curvature of the lower side of the small flange plate 102. End plate 203 is fitted to one end face of the lower side of the small flange plate 102. The gate is welded at the gate notch 204. The precise welding of the turbine guide vane 1 gate and patch is completed. The operation is simple, convenient and efficient, which improves the standardization of the gating system, reduces labor input, improves work efficiency, ensures welding accuracy, improves product qualification rate, reduces production costs, ensures on-time delivery and improves enterprise benefits.

[0031] The foregoing has only described certain exemplary embodiments of the present invention by way of illustration. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the foregoing drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A method for positioning the gate and patch of a high-pressure turbine guide vane, characterized in that: Includes the following steps: S1. Create a 3D solid model of the turbine guide vane in 3D software, and determine the positions of the gate and the abutment in the 3D solid model according to the designed gating system. S2. Draw a positioning fixture based on the 3D solid model. The positioning fixture is a clamping plate structure. The clamping plate structure has two specifications, which are respectively matched with the small edge plate and the large edge plate of the turbine guide vane. The clamping plate structure includes a side plate one, a side plate two, and an end plate. The side plate one, the side plate two, and the end plate form a groove-shaped structure. The side plate one is in contact with the side of the edge plate end of the turbine guide vane and has the same curvature as the edge plate. The side plate two is in contact with the inner surface of the edge plate diameter of the turbine guide vane and has the same curvature as the edge plate. A positioning notch is opened at the position of the positioning fixture at the gate and the patch. The positioning notch is opened on the side plate one or the side plate two. The positioning notch includes a gate notch and a patch notch. S3. Use 3D printing technology to fabricate the positioning fixture in step S2, and attach the positioning fixture to the edge plate position of the turbine guide vane. Perform welding positioning of the gate and the patch at the corresponding gate notch and patch notch.

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