Tool for machining thin-walled case

Abstract

A tooling for machining thin-walled housings includes a base frame with an adjustment component, a fixing component, and a limiting component. Internally, a moving rod drives a rotating shaft to rotate a block, ensuring precise contact between the first and second abutment blocks against the inner wall of the thin-walled housing. A connecting rod further ensures stable movement, providing reliable support for the housing's interior. Externally, a rotating plate, via a rotating shaft and a rack and pinion mechanism, drives the first and second clamping frames to move closer together, with a locking mechanism ensuring secure clamping without loosening. This dual-directional fixing method effectively mitigates deformation risks during machining, significantly improving stability and reliability, and laying a solid foundation for high-precision machining.

Description

Technical Field

[0001] This utility model relates to the field of casing processing technology, specifically to tooling for processing thin-walled casings. Background Technology

[0002] In aero engines, the casing is a key component that bears the load and contains the engine. It is a typical thin-walled structure, and its materials are mostly high-temperature resistant and difficult-to-machine materials such as titanium alloys and high-temperature alloys. Therefore, the casing manufacturing process is very complex and difficult.

[0003] Currently, when milling the outer shape of the casing, the casing is usually only clamped and positioned, without any support for the inner and outer walls. Therefore, the casing is very prone to deformation during the milling process. Utility Model Content

[0004] In order to solve the above-mentioned problems in the existing technology, the purpose of this utility model is to provide tooling for machining thin-walled casings.

[0005] The technical solution adopted in this utility model is as follows:

[0006] A tooling for machining thin-walled casings includes a base frame, an adjustment assembly, a fixing assembly, and a limiting assembly. The adjustment assembly includes a fixed frame, a support frame, a first rotating shaft movably mounted on the support frame, a first rotating block movably mounted on the first rotating shaft, a first connecting plate on the first rotating block, a first abutment on the first connecting plate, a second rotating shaft movably mounted on the support frame, a second rotating block movably mounted on the second rotating shaft, a second connecting plate on the second rotating block, a second abutment on the second connecting plate, connecting rods movably mounted on the first and second rotating shafts, and a drive assembly on the first and second rotating shafts.

[0007] As a preferred embodiment of this utility model, the base frame is provided with support legs.

[0008] As a preferred embodiment of the present invention, the driving assembly includes a sleeve, the sleeve being movably mounted on the first rotating shaft, a movable rod being movably provided on the sleeve, a limiting hole being provided on the movable rod, and a limiting shaft being movably provided on the sleeve and abutting against the limiting hole.

[0009] As a preferred embodiment of this utility model, the limiting hole is provided in a plurality of manners.

[0010] As a preferred embodiment of this utility model, the fixing component includes a rotating shaft movably mounted on the base frame, a rotating plate on the rotating shaft, a rotating gear on the rotating shaft, a first guide rail on the base frame, a first sliding frame on the first guide rail, a first rack on the first sliding frame and the first rack meshing with the rotating gear, a first clamping frame on the first sliding frame, a second guide rail on the base frame, a second sliding frame on the second guide rail, a second rack on the second sliding frame and the second rack meshing with the rotating gear, and a second clamping frame on the second sliding frame.

[0011] As a preferred embodiment of this utility model, the base frame is provided with reinforcing ribs.

[0012] As a preferred embodiment of the present invention, the limiting component includes a locking hole and a locking shaft. The locking hole is disposed on the base frame, and the locking shaft is movably disposed on the rotating plate and abuts against the locking hole.

[0013] As a preferred embodiment of this utility model, the card hole is provided with a plurality of holes.

[0014] The beneficial effects of this utility model are as follows: As a tooling for machining thin-walled casings, this utility model provides internal support by using a moving rod to drive a rotating shaft and a rotating block, ensuring that the first and second abutment blocks precisely fit against the inner wall of the thin-walled casing. This, combined with a connecting rod, ensures motion stability and provides reliable support for the casing's interior. During external clamping, a rotating plate, via a rotating shaft and gear rack transmission, drives the first and second clamping frames to move closer synchronously. Combined with a locking mechanism, this ensures a secure and stable clamping mechanism. This dual-directional, coordinated fixing method effectively resists the risk of deformation during machining, significantly improving the stability and reliability of casing machining and laying a solid foundation for high-precision machining. Attached Figure Description

[0015] The present invention will now be described in further detail with reference to the accompanying drawings and specific implementation methods.

[0016] Figure 1 This is a schematic diagram of the tooling used for machining the thin-walled casing of this utility model;

[0017] Figure 2 This is a schematic diagram of the tooling for machining the thin-walled casing of this utility model from another perspective;

[0018] Figure 3 This is a schematic diagram of the adjustment component structure of the tooling for machining thin-walled casings according to this utility model;

[0019] In the diagram: 1. Base frame, 2. Fixed frame, 3. Support frame, 4. First rotating shaft, 5. First rotating block, 6. First connecting plate, 7. First abutment block, 8. Second rotating shaft, 9. Second rotating block, 10. Second connecting plate, 11. Second abutment block, 12. Connecting rod, 13. Sleeve, 14. Limiting shaft, 15. Moving rod, 16. Limiting hole, 17. Rotating shaft, 18. Rotating plate, 19. Locking hole, 20. Locking shaft, 21. Rotating gear, 22. First guide rail, 23. First sliding frame, 24. First rack, 25. Second guide rail, 26. Second sliding frame, 27. Second rack, 28. First clamping frame, 29. Second clamping frame. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only for explaining the present utility model and are not intended to limit the present utility model; that is, the described embodiments are only some embodiments of the present utility model, and not all embodiments. The components of the embodiments of the present utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0021] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0022] The following is combined Figure 1-3This invention describes a specific embodiment of a tooling for machining thin-walled machine casings. The tooling includes a base frame 1, an adjusting assembly on the base frame 1, a fixing assembly on the base frame 1, and a limiting assembly on the fixing assembly. The adjusting assembly includes a fixing frame 2, a support frame 3 on the fixing frame 2, a first rotating shaft 4 movably mounted on the support frame 3, a first rotating block 5 movably mounted on the first rotating shaft 4, a first connecting plate 6 on the first rotating block 5, and a first abutment 7 on the first connecting plate 6. A second rotating shaft 8 movably mounted on the support frame 3, and a second rotating block 9 movably mounted on the second rotating shaft 8, with a first... Two connecting plates 10 are provided, and a second abutment 11 is provided on the second connecting plate 10. A connecting rod 12 is movably provided on the first rotating shaft 4 and the second rotating shaft 8. A driving assembly is provided on the first rotating shaft 4 and the second rotating shaft 8. The first rotating shaft 4 and the second rotating shaft 8 are far apart from each other. The first rotating block 5 and the second rotating block 9 move with the first rotating shaft 4 and the second rotating block 9. The first rotating block 5 can drive the first abutment 7 on the first connecting plate 6 to abut against the inner wall of the thin-walled casing. The second rotating block 9 can drive the second abutment 11 on the second connecting plate 10 to abut against the inner wall of the thin-walled casing. The connecting rod 12 can stabilize the first rotating shaft 4 and the second rotating shaft 8 when they rotate.

[0023] Advantageously, the base frame 1 is provided with legs, which can make the base frame 1 stable.

[0024] Advantageously, the drive assembly includes a sleeve 13, which is movably mounted on the first rotating shaft 4. A moving rod 15 is movably provided on the sleeve 13, and a limiting hole 16 is provided on the moving rod 15. A limiting shaft 14 is movably provided on the sleeve 13 and abuts against the limiting hole 16. When the moving rod 15 moves toward the sleeve 13, the pair of rotating shafts move away from each other. When it moves to a suitable position and stops, the limiting shaft 14 passes through the side wall of the sleeve 13 and enters the limiting hole 16 on the moving rod 15.

[0025] Advantageously, the limiting holes 16 are provided in a plurality of them, and the plurality of limiting holes 16 are equally spaced on the moving rod 15. The plurality of limiting holes 16 facilitate the use of the limiting shaft 14 to fix the sleeve 13 at different positions.

[0026] Advantageously, the fixing assembly includes a rotating shaft 17 movably mounted on the base frame 1, a rotating plate 18 on the rotating shaft 17, a rotating gear 21 on the rotating shaft 17, a first guide rail 22 on the base frame 1, a first sliding bracket 23 on the first guide rail 22, a first rack 24 on the first sliding bracket 23 meshing with the rotating gear 21, a first clamping bracket 28 on the first sliding bracket 23, a second guide rail 25 on the base frame 1, a second sliding bracket 26 on the second guide rail 25, a second rack 27 on the second sliding bracket 26 meshing with the rotating gear 21, and a first clamping bracket 28 on the first sliding bracket 23. Gear 21 meshes, and the second sliding frame 26 is provided with a second clamping frame 29. When it is necessary to fix the outer wall of the thin-walled casing, the rotating plate 18 is rotated. The rotating plate 18 can drive the rotating shaft 17 to rotate on the base frame 1. The rotating gear 21 rotates with the rotating shaft 17. The first rack 24 and the second rack 27 approach each other under the action of the rotating gear 21. The first rack 24 and the second rack 27 can respectively drive the first sliding frame 23 and the second sliding frame 26 to slide on the first guide rail 22 and the second guide rail 25. The first clamping frame 28 and the second clamping frame 29 move with the first sliding frame 23 and the second sliding frame 26 to clamp and fix the outer wall of the thin-walled casing, making it more stable during processing.

[0027] Advantageously, the base frame 1 is provided with reinforcing ribs, which increase the strength of the base frame 1.

[0028] Advantageously, the limiting component includes a locking hole 19 and a locking shaft 20. The locking hole 19 is provided on the base frame 1, and the locking shaft 20 is movably provided on the rotating plate 18 and abuts against the locking hole 19. The locking shaft 20 rotates with the rotating plate 18 and stops at a predetermined position. The locking shaft 20 passes through the side wall of the rotating plate 18 and enters the locking hole 19 on the base frame 1, thereby fixing the rotating shaft 17 and fixing the first clamping frame 28 and the second clamping frame 29 to prevent them from loosening during the clamping process.

[0029] Advantageously, the card holes 19 are provided in a plurality of manner, and the plurality of card holes 19 are arranged in a ring on the base frame 1, which facilitates fixing the rotating shaft 17 at different positions.

[0030] Working principle of this utility model:

[0031] First, the thin-walled casing is placed on the fixed frame 2. When the moving rod 15 moves towards the sleeve 13, the pair of rotating shafts move away from each other. The movement stops at a suitable position. The limiting shaft 14 passes through the side wall of the sleeve 13 and enters the limiting hole 16 on the moving rod 15. The first rotating block 5 and the second rotating block 9 move with the first rotating shaft 4 and the second rotating shaft 8. The first rotating block 5 can drive the first abutment 7 on the first connecting plate 6 to abut against the inner wall of the thin-walled casing. The second rotating block 9 can drive the second abutment 11 on the second connecting plate 10 to abut against the inner wall of the thin-walled casing. The connecting rod 12 stabilizes the first rotating shaft 4 and the second rotating shaft 8 during rotation. The first abutment 7 and the second abutment 11 support the inner wall of the thin-walled casing to prevent deformation during processing. When the outer wall of the thin-walled casing needs to be fixed, the rotating plate 18 is rotated. The rotating plate 18 drives the rotating shaft 17 to rotate on the base frame 1, and the rotating gear 21 rotates accordingly. When shaft 17 rotates, the first rack 24 and the second rack 27 approach each other under the action of the rotating gear 21. The first rack 24 and the second rack 27 can respectively drive the first sliding frame 23 and the second sliding frame 26 to slide on the first guide rail 22 and the second guide rail 25. The first clamping frame 28 and the second clamping frame 29 move with the first sliding frame 23 and the second sliding frame 26 to clamp and fix the outer wall of the thin-walled casing. The clamping shaft 20 rotates with the rotating plate 18 and stops at a predetermined position. The clamping shaft 20 passes through the side wall of the rotating plate 18 and enters the clamping hole 19 on the base frame 1, thereby fixing the rotating shaft 17 and fixing the first clamping frame 28 and the second clamping frame 29 to prevent them from loosening during the clamping process. The first clamping frame 28 and the second clamping frame 29, together with the first abutment 7 and the second abutment 11, can fix the inner and outer walls of the thin-walled casing to prevent deformation during processing and make it more stable during processing.

[0032] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0033] The above description is merely an example and illustration of the structure of this utility model. Those skilled in the art can make various modifications or additions to the specific embodiments described or use similar methods to replace them, as long as they do not deviate from the structure of the utility model or exceed the scope defined in the claims, they should all fall within the protection scope of this utility model.

Claims

1. A jig for machining a thin-walled housing, comprising a base frame, characterized in that, The base frame is equipped with an adjustment component, a fixing component, and a limiting component. The adjustment component includes a fixing frame, a support frame, a first rotating shaft, a first rotating block, a first connecting plate, and a first abutment. A second rotating shaft, a second rotating block, a second connecting plate, and a second abutment are movably mounted on the support frame. A connecting rod is movably mounted on both the first and second rotating shafts, and a drive component is mounted on both the first and second rotating shafts.

2. The thin-walled pocket machining tooling fixture according to claim 1, characterized in that The base frame is equipped with support legs.

3. The tooling for machining thin-walled casings according to claim 1, characterized in that, The drive assembly includes a sleeve, which is movably mounted on the first rotating shaft. A movable rod is movably provided on the sleeve, and a limiting hole is provided on the movable rod. A limiting shaft is movably provided on the sleeve, and the limiting shaft abuts against the limiting hole.

4. The tooling for machining thin-walled casings according to claim 3, characterized in that, The limiting hole is provided in several parts.

5. The tooling for machining thin-walled casings according to claim 1, characterized in that, The fixing assembly includes a rotating shaft movably mounted on the base frame, a rotating plate on the rotating shaft, a rotating gear on the rotating shaft, a first guide rail on the base frame, a first sliding frame on the first guide rail, a first rack on the first sliding frame that meshes with the rotating gear, a first clamping frame on the first sliding frame, a second guide rail on the base frame, a second sliding frame on the second guide rail, a second rack on the second sliding frame that meshes with the rotating gear, and a second clamping frame on the second sliding frame.

6. The tooling for machining thin-walled casings according to claim 1, characterized in that, The base frame is equipped with reinforcing ribs.

7. The tooling for machining thin-walled casings according to claim 5, characterized in that, The limiting component includes a locking hole and a locking shaft. The locking hole is located on the base frame, and the locking shaft is movably mounted on the rotating plate and abuts against the locking hole.

8. The tooling for machining thin-walled casings according to claim 7, characterized in that, The card slot has several holes.

Images