Aero-engine high-pressure turbine blade machining and grinding device

Abstract

The utility model relates to the technical field of aviation accessory machining, in particular to an aero-engine high-pressure turbine blade machining and grinding device which comprises a machining table, a tensioning adjusting assembly, a circulation grinding assembly and a displacement abutting assembly are installed in the center of the top of the machining table, and the tensioning adjusting assembly comprises an air cylinder. The output end of the air cylinder is fixedly connected with a bearing frame, and a tensioning roller is movably installed at the bottom of the surface of the bearing frame. By arranging the circulating grinding assembly and the displacement abutting assembly, a first motor can be controlled to work to drive a conveying roller to rotate, so that a grinding belt rotates circularly, a tensioning roller and an abutting roller rotate synchronously, a second motor is synchronously controlled to work to drive a screw to rotate, and a positioning plate can move front and back to change the position of the abutting roller; and meanwhile, under elastic supporting of the springs, it can be guaranteed that the abutting rollers are well attached to the grinding belt, the grinding belt can be well attached to the arc-shaped face on the turbine blade, and uniform grinding operation is completed.

Description

Technical Field

[0001] The utility model relates to the technical field of aviation accessory processing, in particular to a processing and grinding device for high-pressure turbine blades of an aero-engine. Background Technique

[0002] A turbine is a rotary power machine that converts the energy of a flowing working fluid into mechanical work and is widely used in aero-engines. Its main function is to convert the thermal energy and pressure energy of high-temperature and high-pressure gas into rotational mechanical work, thereby driving the compressor and other accessories to work. In the actual processing process, in order to ensure the quality of turbine blades, a grinding device is used to process the turbine blades.

[0003] The basic grinding device does not have the function of elastic treatment. Due to the arc of the turbine blade itself, a simple grinding device cannot be well applied to arc-shaped workpieces, and there are easily grinding dead corners, which has certain limitations. To solve the above technical problems, we designed a processing and grinding device for high-pressure turbine blades of an aero-engine. Content of the Utility Model

[0004] The purpose of the utility model is to provide a processing and grinding device for high-pressure turbine blades of an aero-engine, which has the advantage of elastic grinding, and solves the problem that the basic grinding device does not have the function of elastic treatment. Due to the arc of the turbine blade itself, a simple grinding device cannot be well applied to arc-shaped workpieces, and there are easily grinding dead corners, which has certain limitations.

[0005] To achieve the above purpose, the utility model provides the following technical scheme: A processing and grinding device for high-pressure turbine blades of an aero-engine, including a processing table. At the center of the top of the processing table, a tension adjustment component, a cyclic grinding component, and a displacement pressing component are respectively installed. The tension adjustment component includes a cylinder, and the output end of the cylinder is fixedly connected with a bearing frame. A tension roller is movably installed at the bottom of the surface of the bearing frame. The cyclic grinding component includes a fixed seat, and a first motor and a transmission roller are respectively installed on the surface of the fixed seat. A grinding belt is sleeved on the surface of the transmission roller. The displacement pressing component includes a second motor, and the output end of the second motor is fixedly connected with a screw rod. A positioning plate is threadedly sleeved on the surface of the screw rod. A vertical rod is slidably installed through the top of the positioning plate. A spring is sleeved on the surface of the vertical rod. The bottom of the vertical rod is fixedly connected with an auxiliary frame. A pressing roller is movably installed at the bottom of the surface of the auxiliary frame.

[0006] Preferably, an auxiliary frame is fixedly connected to the center of the top of the processing table, and the top of the cylinder is fixedly installed on the auxiliary frame.

[0007] Preferably, the top of the surface of the grinding belt penetrates between the bearing frame and the tension roller, and the outer ring of the tension roller is in contact with the surface of the grinding belt.

[0008] Preferably, a fixing seat is fixedly connected to the top of the processing table, the first motor is bolted to the fixing seat, the transmission roller is movably installed on the fixing seat, and the connection between the output end of the first motor and the transmission roller is fixedly connected.

[0009] Preferably, a connecting frame is fixedly connected to the surface of the fixing seat, and the second motor is bolted to the connecting frame.

[0010] Preferably, a guiding rod is fixedly connected to the right side of the surface of the connecting frame, and the guiding rod penetrates through the positioning plate and is in sliding contact with the positioning plate.

[0011] Preferably, the top of the spring is fixedly connected to the bottom of the positioning plate, and the bottom of the spring is fixedly connected to the top of the auxiliary frame.

[0012] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0013] By providing a circulating grinding component and a displacement pressing component, the present utility model has the advantage of elastic grinding. It can control the operation of the first motor to drive the transmission roller to rotate, so that the abrasive belt rotates in a cycle, and the tensioning roller and the pressing roller rotate synchronously. Synchronously control the operation of the second motor to drive the screw rod to rotate, so that the positioning plate can move back and forth to change the position of the pressing roller. At the same time, under the elastic support of the spring, it can ensure good fitting between the pressing roller and the abrasive belt, so that the abrasive belt can be well attached to the arc surface of the turbine blade to complete the uniform grinding operation. Description of the Drawings

[0014] Figure 1 is a three-dimensional schematic diagram of the structure of the present utility model;

[0015] Figure 2 is a three-dimensional schematic diagram of the circulating grinding component of the present utility model;

[0016] Figure 3 is a three-dimensional schematic diagram of the tensioning adjustment component of the present utility model;

[0017] Figure 4 is a three-dimensional schematic diagram of the displacement pressing component of the present utility model.

[0018] In the figure: 1. Processing table; 2. Tensioning adjustment component; 201. Auxiliary frame; 202. Cylinder; 203. Bearing frame; 204. Tensioning roller; 3. Circulating grinding component; 301. Fixing seat; 302. First motor; 303. Abrasive belt; 304. Transmission roller; 4. Displacement pressing component; 401. Connecting frame; 402. Pressing roller; 403. Auxiliary frame; 404. Spring; 405. Vertical rod; 406. Guiding rod; 407. Positioning plate; 408. Screw rod; 409. Second motor. Detailed Embodiments

[0019] Please refer to Figures 1 - 4 and a machining and grinding device for high-pressure turbine blades of an aero-engine, which includes a machining table 1. At the center of the top of the machining table 1, a tension adjustment component 2, a circulating grinding component 3, and a displacement pressing component 4 are respectively installed. The tension adjustment component 2 includes a cylinder 202. The output end of the cylinder 202 is fixedly connected with a bearing frame 203. A tension roller 204 is movably installed at the bottom of the surface of the bearing frame 203. The circulating grinding component 3 includes a fixed seat 301. A first motor 302 and a transmission roller 304 are respectively installed on the surface of the fixed seat 301. A grinding belt 303 is sleeved on the surface of the transmission roller 304. The displacement pressing component 4 includes a second motor 409. The output end of the second motor 409 is fixedly connected with a screw rod 408. A positioning plate 407 is threadedly sleeved on the surface of the screw rod 408. By setting the positioning plate 407 and the screw rod 408, the function of screw thread transmission can be achieved. When the screw rod 408 rotates driven by the second motor 409, the positioning plate 407 will generate a forward and backward displacement. A vertical rod 405 is slidably installed through the top of the positioning plate 407. By setting the vertical rod 405, the function of positioning and guiding can be achieved, and the up-and-down movement stability of the auxiliary frame 403 can be effectively improved. A spring 404 is sleeved on the surface of the vertical rod 405. The bottom of the vertical rod 405 is fixedly connected with an auxiliary frame 403. A pressing roller 402 is movably installed at the bottom of the surface of the auxiliary frame 403;

[0020] Please refer to Figure 1 and Figure 3 At the center of the top of the machining table 1, an auxiliary frame 201 is fixedly connected. The top of the cylinder 202 is fixedly installed on the auxiliary frame 201;

[0021] Please refer to Figure 1 and Figure 2 The top of the grinding belt 303 penetrates between the bearing frame 203 and the tension roller 204, and the outer ring of the tension roller 204 is in contact with the surface of the grinding belt 303. By setting the bearing frame 203 and the tension roller 204, the height of the tension roller 204 can be flexibly adjusted driven by the cylinder 202, thereby changing the transmission tension of the grinding belt 303 to meet the requirements of subsequent grinding operations;

[0022] Please refer to Figure 1 and Figure 2 On the top of the machining table 1, a fixed seat 301 is fixedly connected. The first motor 302 is bolted to the fixed seat 301. The transmission roller 304 is movably installed on the fixed seat 301. The connection between the output end of the first motor 302 and the transmission roller 304 is fixedly connected. By setting the fixed seat 301, the fixed installation requirements of the first motor 302 and the movable installation requirements of the transmission roller 304 can be respectively met;

[0023] Please refer to Figure 1 , Figure 2and Figure 4 A connecting frame 401 is fixedly connected to the surface of the fixed seat 301, and the second motor 409 is bolted to the connecting frame 401. By providing the connecting frame 401, it can be fixedly connected to the fixed seat 301, thus meeting the installation requirements of the second motor 409 and the guide rod 406;

[0024] Please refer to Figure 1 and Figure 4 A guide rod 406 is fixedly connected to the right side of the surface of the connecting frame 401. The guide rod 406 penetrates through the positioning plate 407 and is in sliding contact with the positioning plate 407. By providing the guide rod 406, the front and rear displacement of the positioning plate 407 can be guided;

[0025] Please refer to Figure 1 and Figure 4 The top of the spring 404 is fixedly connected to the bottom of the positioning plate 407, and the bottom of the spring 404 is fixedly connected to the top of the auxiliary frame 403. By providing the spring 404, the auxiliary frame 403 can be elastically supported, so that the pressing roller 402 is always in good contact with the abrasive belt 303;

[0026] In the attached drawings of the specification Figure 1 and Figure 3 The cylinder 202 is in the extended state, and the tensioning roller 204 is located at the lowest point of the stroke.

[0027] During use, all components are in the initial installation state. The turbine blade is pushed from left to right on the processing table 1, and the first motor 302 is controlled to work to drive the transmission roller 304 to rotate, so that the abrasive belt 303 rotates at a high speed. The tensioning roller 204 and the pressing roller 402 rotate synchronously. Under the elastic support of the spring 404, the pressing roller 402 presses the abrasive belt 303 against the turbine blade to complete local grinding. At this time, the second motor 409 is controlled to work to drive the screw 408 to rotate. With the assistance of the guide rod 406, the positioning plate 407 can be stably displaced back and forth, changing the position of the pressing roller 402 to perform grinding and repair on the turbine blade. During this process, the cylinder 202 can be controlled to extend and retract according to actual needs, changing the height of the tensioning roller 204, and then adjusting the transmission tension of the abrasive belt 303 to better meet the actual use requirements.

[0028] To sum up: For this machining and grinding and repair device for the high-pressure turbine blade of an aero-engine, by providing the cyclic grinding and repair assembly 3 and the displacement pressing assembly 4, it solves the problem that the basic grinding and repair device does not have the function of elastic treatment. Due to the arc of the turbine blade itself, a simple grinding and repair device cannot be well applied to arc-shaped workpieces, and there are easily grinding dead corners, resulting in certain limitations.

Claims

1. A machining and grinding device for high-pressure turbine blades of an aircraft engine, comprising a machining table (1), characterized in that: A tension adjustment component (2), a circulation grinding component (3) and a displacement pressing component (4) are respectively installed at the center of the top of the processing table (1); the tension adjustment component (2) comprises a cylinder (202); an output end of the cylinder (202) is fixedly connected to a carrier frame (203); a tension roller (204) is movably installed at the bottom of the surface of the carrier frame (203); the circulation grinding component (3) comprises a fixed seat (301); a first motor (302) and a transmission roller (304) are respectively installed on the surface of the fixed seat (301); the transmission roller (304) is The surface is sleeved with a grinding belt (303), the displacement and pressing assembly (4) comprises a second motor (409), the output end of the second motor (409) is fixedly connected with a screw rod (408), the surface of the screw rod (408) is sleeved with a positioning plate (407) through a thread, the top of the positioning plate (407) is penetrated by a vertical rod (405) slidably installed, the surface of the vertical rod (405) is sleeved with a spring (404), the bottom of the vertical rod (405) is fixedly connected with an auxiliary frame (403), and the bottom of the surface of the auxiliary frame (403) is movably installed with a pressing roller (402).

2. The device for machining and grinding high-pressure turbine blades of an aircraft engine according to claim 1, characterized in that: An auxiliary frame (201) is fixedly connected to the center of the top of the processing table (1), and the top of the cylinder (202) is fixedly mounted on the auxiliary frame (201).

3. The aero-engine high-pressure turbine blade machining and grinding device according to claim 1, characterized in that: The top of the surface of the sanding belt (303) is arranged between the carrier frame (203) and the tensioning roller (204), and the outer ring of the tensioning roller (204) is in contact with the surface of the sanding belt (303).

4. The aerospace engine high-pressure turbine blade machining and grinding device according to claim 1, characterized in that: A fixing seat (301) is fixedly connected to the top of the processing table (1); the first motor (302) is bolted onto the fixing seat (301); the transmission roller (304) is movably mounted on the fixing seat (301); and the output end of the first motor (302) is fixedly connected to the connection point of the transmission roller (304).

5. The device for machining and grinding high-pressure turbine blades of an aircraft engine according to claim 4, characterized in that: A connecting frame (401) is fixedly connected to the surface of the fixing seat (301), and the second motor (409) is bolted onto the connecting frame (401).

6. The aero-engine high-pressure turbine blade machining and grinding device according to claim 5, characterized in that: A guide rod (406) is fixedly connected to the right side of the surface of the connecting frame (401), and the guide rod (406) passes through the positioning plate (407) and is in sliding contact with the positioning plate (407).

7. The aero-engine high-pressure turbine blade machining and grinding device according to claim 1, characterized in that: The top of the spring (404) is fixedly connected to the bottom of the positioning plate (407), and the bottom of the spring (404) is fixedly connected to the top of the auxiliary frame (403).

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