A circular aviation workpiece fixing and polishing tooling

Abstract

The utility model discloses a kind of annular aviation workpiece fixed polishing frock, it is related to annular aviation workpiece fixed polishing frock technical field, including upper fixed ring block;The left side of the upper fixed ring block is fixedly connected with upper fixed frame, the upper side of upper fixed frame is fixedly connected with first motor, the output of first motor is fixedly connected with side rotary shaft, the outside of side rotary shaft is fixedly connected with front sprocket, the outside of front sprocket is engaged with chain, the inside rear side of chain is engaged with rear sprocket;The right side of side rotary shaft is fixedly connected with upper threaded rod, the outside of upper threaded rod is threadedly connected with moving adjusting block, the lower side rear end of moving adjusting block is fixedly connected with push rod fixed block, the front side middle of push rod fixed block is fixedly connected with electric push rod, the front side of electric push rod is fixedly connected with lifting connecting frame;The lower side of lifting connecting frame is fixedly connected with second motor, the output of second motor is fixedly connected with lower rotary shaft;The lower side of lower rotary shaft is fixedly connected with polishing wheel.

Description

Technical Field

[0001] This utility model relates to the technical field of fixed grinding fixtures for annular aerospace workpieces, specifically a fixed grinding fixture for annular aerospace workpieces. Background Technology

[0002] The ring-shaped aerospace workpiece fixing and grinding fixture is a specialized tooling equipment used in the aerospace manufacturing and maintenance fields. It is used to fix and assist in the grinding process of ring-shaped aerospace workpieces. Its main applications include: Aero-engine manufacturing: During the production of aero-engines, many ring-shaped components (such as the annular outer shell of the combustion chamber and the annular seals of the turbine) require fine grinding to ensure their surface quality, dimensional accuracy, and fit with other components; Aircraft landing gear processing: Some annular structures of aircraft landing gear (such as the outer cylinder of the shock absorber strut and the wheel hub) also require high-quality grinding to improve their corrosion resistance, wear resistance, and appearance quality; Aerospace accessory repair and maintenance: In the repair and maintenance of aerospace accessories, some used ring-shaped workpieces, such as various annular guide tubes and connectors, need to be ground and repaired to restore their original performance.

[0003] However, the existing fixed grinding fixtures for some annular aerospace workpieces cannot adjust the position of the grinding wheel, which not only prevents them from accurately aligning with different parts of the aerospace workpiece for grinding, but also affects the grinding efficiency and grinding effect.

[0004] Therefore, those skilled in the art have provided a ring-shaped aerospace workpiece fixing and grinding fixture to solve the problems mentioned in the background art. Utility Model Content

[0005] The purpose of this invention is to provide a fixture for fixing and grinding annular aerospace workpieces to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: A fixture for fixing and grinding annular aerospace workpieces includes an upper fixing ring block; an upper fixing frame is fixedly connected to the left side of the upper fixing ring block, a first motor is fixedly connected to the upper side of the upper fixing frame, a side rotating shaft is fixedly connected to the output end of the first motor, a front sprocket is fixedly connected to the outer side of the side rotating shaft, a chain is engaged on the outer side of the front sprocket, and a rear sprocket is engaged on the inner rear side of the chain; an upper threaded rod is fixedly connected to the right side of the side rotating shaft, a movable adjusting block is threadedly connected to the outer side of the upper threaded rod, a push rod fixing block is fixedly connected to the lower rear end of the movable adjusting block, an electric push rod is fixedly connected to the middle of the front side of the push rod fixing block, and a lifting connecting frame is fixedly connected to the front side of the electric push rod.

[0007] As a further embodiment of this utility model, a second motor is fixedly connected to the lower side of the lifting connecting frame, and a lower rotating shaft is fixedly connected to the output end of the second motor.

[0008] As a further embodiment of this invention, a grinding wheel is fixedly connected to the lower side of the lower rotating shaft.

[0009] As a further embodiment of this utility model, the lower left and right ends of the upper fixing ring block are fixedly connected to connecting members, and the lower side of the connecting members is fixedly connected to the lower fixing ring block.

[0010] As a further embodiment of this utility model, the left and right sides of the lower fixing ring block are threaded with fixing bolts, and a rotating handle is fixedly connected to one side of the fixing bolts.

[0011] As a further embodiment of this utility model, a clamping plate is fixedly connected to the other side of the fixing bolt, and a protective pad is fixedly connected to the inner side wall of the clamping plate.

[0012] As a further embodiment of this utility model, a lower fixed base is fixedly connected to the lower side of the lower fixed ring block.

[0013] Compared with the prior art, the beneficial effects of this utility model are: 1. The position of the grinding wheel can be adjusted by activating the first motor and electric push rod, enabling the device to precisely target different parts of the aerospace workpiece for grinding. For example, when grinding the inner cylindrical surface of an aerospace workpiece, the grinding wheel can be adjusted to the appropriate radial distance and axial position to ensure full and uniform contact between the grinding wheel and the inner cylindrical surface, avoiding incomplete or excessive grinding. Similarly, for grinding the outer cylindrical surface and end face, the position of the grinding wheel can be adjusted as needed to ensure that each part meets the stringent dimensional accuracy and surface roughness standards required in the aerospace field, effectively improving the overall grinding accuracy. Furthermore, the device can rationally adjust the position of the grinding wheel according to the specific shape and size of the annular aerospace workpiece, planning a more efficient grinding path, maximizing the effective working range of the grinding wheel, and reducing grinding time. This device increases the grinding area per unit time, thereby improving the efficiency of the entire grinding process. Furthermore, when grinding different areas of a ring-shaped aerospace workpiece, there is no need to reinstall or replace the device; simply adjusting the grinding wheel position allows for quick transfer from one area to another. This convenient operation saves time wasted on frequent device changes or workpiece position adjustments, ensuring smoother transitions between grinding areas and enabling continuous, efficient grinding operations, thus improving production efficiency. In addition, the aerospace industry offers a wide variety of ring-shaped workpiece sizes, ranging from small, precision ring components to large aircraft landing gear ring structures. The adjustable grinding wheel position allows the device to easily handle workpieces of different sizes. By adjusting the radial and axial positional parameters of the grinding wheel according to the actual size of the aerospace workpiece, the device ensures that the grinding wheel and the workpiece are in the appropriate grinding position, eliminating the need for dedicated fixed grinding devices for each size of aerospace workpiece. This greatly improves the device's versatility and adaptability, meeting diverse production needs. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of a fixture for fixing and grinding annular aerospace workpieces.

[0015] Figure 2 This is a schematic diagram of the grinding wheel in a fixed grinding fixture for annular aerospace workpieces.

[0016] Figure 3 This is a schematic diagram of the front and rear sprockets in a ring-shaped aerospace workpiece fixing and grinding fixture.

[0017] Figure 4 This is a schematic diagram of the clamping plate in a ring-shaped aerospace workpiece fixing and grinding fixture.

[0018] In the diagram: 1-Upper fixed ring block, 2-Upper fixed frame, 3-First motor, 4-Side rotating shaft, 5-Front sprocket, 6-Chain, 7-Rear sprocket, 8-Upper threaded rod, 9-Moving adjustment block, 10-Push rod fixing block, 11-Electric push rod, 12-Lifting connecting frame, 13-Second motor, 14-Lower rotating shaft, 15-Grinding wheel, 16-Connector, 17-Lower fixed ring block, 18-Fixing bolt, 19-Rotating handle, 20-Clamping plate, 21-Lower fixed base, 22-Protective pad. Detailed Implementation

[0019] Please see Figures 1-4 In this embodiment of the present invention, a ring-shaped aerospace workpiece fixing and grinding fixture includes an upper fixing ring block 1; an upper fixing frame 2 is fixedly connected to the left side of the upper fixing ring block 1, a first motor 3 is fixedly connected to the upper side of the upper fixing frame 2, a side rotating shaft 4 is fixedly connected to the output end of the first motor 3, a front sprocket 5 is fixedly connected to the outer side of the side rotating shaft 4, a chain 6 is meshed on the outer side of the front sprocket 5, and a rear sprocket 7 is meshed on the inner rear side of the chain 6; an upper threaded rod 8 is fixedly connected to the right side of the side rotating shaft 4, a movable adjusting block 9 is threadedly connected to the outer side of the upper threaded rod 8, a push rod fixing block 10 is fixedly connected to the lower rear end of the movable adjusting block 9, and an electric push rod 11 is fixedly connected to the middle of the front side of the push rod fixing block 10. A lifting connecting frame 12 is fixedly connected to the side; a second motor 13 is fixedly connected to the lower side of the lifting connecting frame 12, and a lower rotating shaft 14 is fixedly connected to the output end of the second motor 13; a grinding wheel 15 is fixedly connected to the lower side of the lower rotating shaft 14; a connecting piece 16 is fixedly connected to the lower left and right ends of the upper fixed ring block 1, and a lower fixed ring block 17 is fixedly connected to the lower side of the connecting piece 16; a fixing bolt 18 is threadedly connected to the left and right sides of the lower fixed ring block 17, and a rotating handle 19 is fixedly connected to one side of the fixing bolt 18; a clamping plate 20 is fixedly connected to the other side of the fixing bolt 18, and a protective pad 22 is fixedly connected to the inner wall of the clamping plate 20; a lower fixed base 21 is fixedly connected to the lower side of the lower fixed ring block 17.

[0020] The working principle of this utility model is as follows: When it is necessary to fix and grind an aerospace workpiece, the workpiece can be placed between the left and right clamping plates 20. Then, the left and right fixing bolts 18 are rotated by the left and right rotating handles 19 respectively. The fixing bolts 18 will then drive the clamping plates 20 and the protective pads 22 to move along the lower fixing base 21 towards one side of the aerospace workpiece until the protective pads 22 are in complete contact with the aerospace workpiece. At this time, the fixation of the aerospace workpiece before grinding is completed. Then, the lifting connecting frame 12 is started by the external controller. The lifting connecting frame 12 will drive the second motor 13, the lower rotating shaft 14 and the grinding wheel 15 to move downward until the grinding wheel 15 is in complete contact with the aerospace workpiece. Then, the second motor 13 is started, which drives the lower rotating shaft 14 and the grinding wheel 15 to rotate. Then, the surface of the aerospace workpiece can be ground. During the grinding process, when it is necessary to adjust the front and rear position of the grinding wheel 15, the electric motor can be started. The electric push rod 11 drives the lifting connecting frame 12 to move back and forth, which in turn drives the second motor 13, the lower rotating shaft 14, and the grinding wheel 15 to move back and forth. This completes the adjustment of the front and back position of the grinding wheel 15. When it is necessary to adjust the horizontal position of the grinding wheel 15, simply start the first motor 3. The first motor 3 drives the side rotating shaft 4, the front sprocket 5, the chain 6, and the rear sprocket 7 to rotate. The rear sprocket 7 drives the upper threaded rod 8 on the rear side to rotate. At the same time, the side rotating shaft 4 drives the upper threaded rod 8 on the front side to rotate, which in turn drives the moving adjusting block 9 to move horizontally, which in turn drives the second motor 13, the lower rotating shaft 14, and the grinding wheel 15 to move horizontally. This completes the adjustment of the horizontal position of the grinding wheel 15. By starting the first motor 3 and the electric push rod 11, the position of the grinding wheel 15 can be adjusted, so that the device can accurately align different parts of the aerospace workpiece for grinding.For example, when grinding the inner cylindrical surface of an aerospace workpiece, the grinding wheel 15 can be adjusted to a suitable radial distance and axial position to ensure full and uniform contact between the grinding wheel 15 and the inner cylindrical surface, avoiding incomplete or excessive grinding. Similarly, for grinding the outer cylindrical surface and end face, the position of the grinding wheel 15 can be adjusted as needed to ensure that each part meets the stringent dimensional accuracy and surface roughness standards required in the aerospace field, effectively improving the overall grinding accuracy. Moreover, the device can rationally adjust the position of the grinding wheel 15 according to the specific shape and size of the annular aerospace workpiece to plan a more efficient grinding path, maximizing the effective working range of the grinding wheel 15 and reducing the need for grinding. The device reduces grinding time and increases the grinding area per unit time, thereby improving the efficiency of the entire grinding process. Furthermore, when grinding different areas of a ring-shaped aerospace workpiece, there is no need to reinstall or replace the device; simply adjusting the position of the grinding wheel 15 allows for quick transfer from one area to another. This convenient operation saves time wasted on frequent device changes or adjustments to the aerospace workpiece position, resulting in smoother transitions between grinding areas and enabling continuous, efficient grinding operations, thus improving production efficiency. In addition, the aerospace industry offers a wide variety of ring-shaped workpiece sizes, ranging from small, precision ring-shaped components to large aircraft landing gear ring structures. The adjustable position of the grinding wheel 15 allows the device to easily handle workpieces of different sizes. By adjusting the radial and axial positional parameters of the grinding wheel 15 according to the actual size of the aerospace workpiece, the device can ensure that the grinding wheel 15 is in the appropriate grinding position relative to the workpiece, eliminating the need for a dedicated fixed grinding device for each size of aerospace workpiece. This significantly improves the device's versatility and adaptability, meeting diverse production needs.

[0021] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this invention, and no reference numerals in the claims should be construed as limiting the scope of the claims.

[0022] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A fixture for fixing and grinding annular aerospace workpieces, comprising an upper fixing ring block (1) and a lower fixing ring block (17), characterized in that, The upper fixed ring block (1) is fixedly connected to the left side of the upper fixed frame (2), the upper side of the upper fixed frame (2) is fixedly connected to the upper motor (3), the output end of the first motor (3) is fixedly connected to the side rotating shaft (4), the outer side of the side rotating shaft (4) is fixedly connected to the front sprocket (5), the outer side of the front sprocket (5) is engaged with the chain (6), the inner rear side of the chain (6) is engaged with the rear sprocket (7); the right side of the side rotating shaft (4) is fixedly connected to the upper threaded rod (8), the outer side of the upper threaded rod (8) is threadedly connected to the moving adjustment block (9), the lower rear end of the moving adjustment block (9) is fixedly connected to the push rod fixing block (10), the middle front side of the push rod fixing block (10) is fixedly connected to the electric push rod (11), and the front side of the electric push rod (11) is fixedly connected to the lifting connecting frame (12).

2. The annular aerospace workpiece fixing and grinding fixture according to claim 1, characterized in that, The lower side of the lifting connecting frame (12) is fixedly connected to a second motor (13), and the output end of the second motor (13) is fixedly connected to a lower rotating shaft (14).

3. The annular aerospace workpiece fixing and grinding fixture according to claim 2, characterized in that, A grinding wheel (15) is fixedly connected to the lower side of the lower rotating shaft (14).

4. The ring-shaped aerospace workpiece fixing and grinding fixture according to claim 1, characterized in that, The lower left and right ends of the upper fixed ring block (1) are fixedly connected to the connector (16), and the lower side of the connector (16) is fixedly connected to the lower fixed ring block (17).

5. The annular aerospace workpiece fixing and grinding fixture according to claim 4, characterized in that, The lower fixed ring block (17) is threaded with fixing bolts (18) on both sides, and a rotating handle (19) is fixedly connected to one side of the fixing bolts (18).

6. The annular aerospace workpiece fixing and grinding fixture according to claim 5, characterized in that, A clamping plate (20) is fixedly connected to the other side of the fixing bolt (18), and a protective pad (22) is fixedly connected to the inner wall of the clamping plate (20).

7. The annular aerospace workpiece fixing and grinding fixture according to claim 4, characterized in that, The lower fixed ring block (17) is fixedly connected to the lower fixed base (21).

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