Fixing mechanism for aerospace retainer ring
By designing an integrated aerospace-grade circlip fixing mechanism with multiple clamping methods, the problem of frequent fixture changes in existing technologies has been solved. This allows for the adaptation of multiple machining surfaces on a single fixture, improving production efficiency and convenience.
Patent Information
- Application Number
- CN202520307063.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-25
- Publication Date
- 2026-02-10
- Estimated Expiration
- 2035-02-25
AI Technical Summary
Existing aerospace chuck fixing mechanisms require changing fixtures to adapt to different machining surfaces, resulting in low production efficiency and wasted time.
Design a multi-gripping integrated fixing mechanism, including an outer ring clamping mechanism, an inner ring clamping mechanism, a flipping mechanism, and a detection mechanism. The flipping mechanism enables multi-faceted clamping, reducing the number of clamp replacements.
This allows for the adaptation of multiple machining surfaces onto a single fixture, improving production efficiency, saving time on fixture changes, and enhancing machining convenience.
Smart Images

Figure CN223889806U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of fixing mechanism technology, specifically a fixing mechanism for aerospace calipers. Background Technology
[0002] A retaining ring fixing mechanism is a device or structure used to fix and position retaining rings (or similar components) in aerospace equipment. This fixing mechanism is typically designed with specific clamping, locking, or positioning functions to ensure the stability and reliability of the retaining ring in the aerospace equipment. It may include various components such as clamping plates, drive mechanisms, fixing blocks, and rotating rods, which work together to achieve the fixing and positioning of the retaining ring. In the aerospace field, retaining ring fixing mechanisms need to withstand extreme environmental conditions, such as high temperature, high pressure, and strong radiation; therefore, their design and manufacturing requirements are extremely stringent.
[0003] Existing aerospace circlips require clamping and fixing during machining. However, existing fixing mechanisms typically clamp only the inner or outer ring of the aerospace circlip. Changing the machining surface necessitates changing the fixture and resetting the tool, which is cumbersome and detrimental to mass production. It also wastes considerable time. Therefore, we need to propose a new fixing mechanism for aerospace circlips. Utility Model Content
[0004] The purpose of this utility model is to provide a fixing mechanism for aerospace ferrules, which has the advantages of an integrated clamp with multiple clamping methods, in order to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, the present invention provides the following technical solution: a fixing mechanism for aerospace clasps, comprising a base plate, a support mechanism for support is provided on the top of the base plate, a flipping mechanism for flipping the working surface is provided on one side of the support mechanism, and a limiting mechanism for limiting the position of the flipping mechanism is provided on the inner side of the support mechanism.
[0006] The top of the flipping mechanism is provided with an outer ring clamping mechanism for clamping the outer ring of the aerospace caliper, the bottom of the flipping mechanism is provided with an inner ring clamping mechanism for clamping the inner ring of the aerospace caliper, and the inside of the support mechanism is provided with a detection mechanism for detecting whether the flipping is in place.
[0007] Preferably, the support mechanism includes a support rod, which is disposed on the top of the base plate, and a support frame is disposed on the top of the support rod. A mounting bracket is disposed on the top of the base plate.
[0008] Preferably, the flipping mechanism includes a motor and a flipping plate. The motor is located on one side of the support frame and at the top of the mounting frame. The flipping plate is located inside the mounting frame. A flipping rod is provided at the output end of the motor. A first bearing is fitted on the outer wall of the flipping rod. The first bearing is located inside the support frame. A fixing rod is provided on the side of the flipping plate away from the flipping rod. A second bearing is fitted on the outer ring of the fixing rod.
[0009] Preferably, the limiting mechanism includes an electric cylinder, which is disposed inside the support frame and its output end points toward the flip plate. The flip plate is provided with a limiting hole on the side corresponding to the electric cylinder, and the limiting hole corresponds to the output end of the electric cylinder. A limiting pin is provided above the support frame, and the limiting pin passes through the support frame, the first bearing and the flip rod respectively.
[0010] Preferably, the outer ring clamping mechanism includes a first mounting plate, which is disposed on the top of the flipping plate. A first clamping plate is disposed above the first mounting plate, and a first positioning hole is opened above the first clamping plate. A corresponding first positioning rod is disposed inside the first positioning hole. A first mounting hole is opened above the flipping plate, and the first mounting hole corresponds to the first positioning rod. A placement plate is disposed at the top of the first mounting plate, and a second clamping plate is disposed on the top of the placement plate. A second positioning hole is opened above the second clamping plate, and a corresponding second positioning rod is disposed inside the second positioning hole. A second mounting hole is opened above the placement plate, and a first electric slide rail is disposed inside the first mounting plate. The moving end of the first electric slide rail is respectively installed at the bottom of the first clamping plate and the second clamping plate.
[0011] Preferably, the inner ring clamping mechanism includes a second mounting plate, which is disposed at the bottom of the flip plate. A second electric slide rail is disposed inside the second mounting plate. A push block is mounted on the moving end surface of the second electric slide rail, and a silicone plate is disposed on one side of the push block.
[0012] Preferably, the detection mechanism includes an infrared sensor, which is disposed inside the support frame. An infrared through hole is provided inside the flip plate, and an infrared generator is disposed inside the support frame.
[0013] Compared with the prior art, the beneficial effects of this utility model are:
[0014] This invention utilizes an outer and inner ring clamping mechanism to clamp aerospace-grade circlips, facilitating the clamping of the inner and outer rings of blank ring materials. A flipping mechanism allows for easy switching between clamping the aerospace-grade circlips and the inner and outer rings of the blank ring material. Compared to existing technologies that require changing fixtures and resetting tools to adapt to different machining surfaces, this device only requires one fixture to flip, enabling clamping in multiple positions to accommodate different machining surfaces. This is more convenient and saves time on fixture changes. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the structure of this utility model;
[0016] Figure 2 This is a cross-sectional view of the flip plate of this utility model;
[0017] Figure 3 This is a cross-sectional view of the present invention;
[0018] Figure 4 This is a cross-sectional view of the infrared through-hole of this utility model.
[0019] In the diagram: 1. Base plate; 2. Support rod; 3. Support frame; 4. Mounting bracket; 5. Motor; 6. Flipping rod; 7. First bearing; 8. Flipping plate; 9. Fixing rod; 10. Second bearing; 11. Electric cylinder; 12. Limiting hole; 13. Limiting pin; 14. First mounting plate; 15. First clamping plate; 16. First positioning hole; 17. First positioning rod; 18. First mounting hole; 19. Placement plate; 20. Second clamping plate; 21. Second positioning hole; 22. Second positioning rod; 23. Second mounting hole; 24. First electric slide rail; 25. Second mounting plate; 26. Second electric slide rail; 27. Push block; 28. Silicone plate; 29. Infrared through hole; 30. Infrared generator; 31. Infrared sensor. Detailed Implementation
[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0021] Please see Figures 1-4This utility model provides a technical solution: a fixing mechanism for aerospace retaining rings, including a base plate 1, with a support mechanism on the top of the base plate 1; the support mechanism includes a support rod 2, which is disposed on the top of the base plate 1, with a support frame 3 on the top of the support rod 2, and a mounting bracket 4 on the top of the base plate 1. The bottom of the base plate 1 is disposed on the worktable surface of a processing equipment such as a milling machine.
[0022] A flipping mechanism for flipping the working surface is provided on one side of the support mechanism; the flipping mechanism includes a motor 5 and a flipping plate 8. The motor 5 is located on one side of the support frame 3 and at the top of the mounting frame 4. The flipping plate 8 is located inside the mounting frame 4. A flipping rod 6 is provided at the output end of the motor 5. A first bearing 7 is fitted on the outer wall of the flipping rod 6. The first bearing 7 is located inside the support frame 3. A fixing rod 9 is provided on the side of the flipping plate 8 away from the flipping rod 6. A second bearing 10 is fitted on the outer ring of the fixing rod 9.
[0023] The inner side of the support mechanism is provided with a limiting mechanism for limiting the position of the flipping mechanism; the limiting mechanism includes an electric cylinder 11, which is located inside the support frame 3 and its output end points to the flipping plate 8. A limiting hole 12 is provided on the side of the flipping plate 8 corresponding to the electric cylinder 11. The limiting hole 12 corresponds to the output end of the electric cylinder 11. A limiting pin 13 is provided on the upper part of the support frame 3. The limiting pin 13 passes through the support frame 3, the first bearing 7 and the flipping rod 6 respectively.
[0024] The top of the flipping mechanism is provided with an outer ring clamping mechanism for clamping the outer ring of the aerospace caliper ring; the outer ring clamping mechanism includes a first mounting plate 14, which is located on the top of the flipping plate 8. A first clamping plate 15 is located above the first mounting plate 14. A first positioning hole 16 is opened above the first clamping plate 15. A corresponding first positioning rod 17 is arranged inside the first positioning hole 16. A first mounting hole 18 is opened above the flipping plate 8. The first mounting hole 18 corresponds to the first positioning rod 17. A placement plate 19 is located at the top of the first mounting plate 14. A second clamping plate 20 is located at the top of the placement plate 19. A second positioning hole 21 is opened above the second clamping plate 20. A corresponding second positioning rod 22 is arranged inside the second positioning hole 21. A second mounting hole 23 is opened above the placement plate 19. A first electric slide rail 24 is arranged inside the first mounting plate 14. The moving ends of the first electric slide rail 24 are respectively installed at the bottom of the second clamping plate 20.
[0025] The bottom of the flipping mechanism is equipped with an inner ring clamping mechanism for holding the inner ring of the aerospace circlip. The inner ring clamping mechanism includes a second mounting plate 25, which is located at the bottom of the flipping plate 8. A second electric slide rail 26 is provided inside the second mounting plate 25. A push block 27 is mounted on the moving end surface of the second electric slide rail 26, and a silicone plate 28 is provided on one side of the push block 27. The silicone plate 28 is used to buffer the force of clamping the inner ring and prevent scratching the inner wall of the aerospace circlip.
[0026] The support mechanism is internally equipped with a detection mechanism for determining whether the flipping is in place. This detection mechanism includes an infrared sensor 31, which is located inside the support frame 3. An infrared through-hole 29 is provided inside the flipping plate 8, and an infrared generator 30 is located inside the support frame 3. This mechanism is used to detect whether the flipping is in place, assisting in automated flipping.
[0027] In summary, its working principle can be described as follows:
[0028] When aerospace circlips need to be processed, the blank ring is placed on the surface of the first mounting plate 14, the first electric slide rail 24 is activated to move the placement plate 19, and the second clamping plate 20 moves toward the first clamping plate 15 to clamp the aerospace circlip blank ring, and the inner ring of the aerospace circlip blank ring is processed.
[0029] If the blank rings are of inconsistent sizes, adjust the opening size of the first clamping plate 15 and the second clamping plate 20. Pull out the first positioning rod 17 and the second positioning rod 22, and bend the first clamping plate 15 and the second clamping plate 20 to the required opening size. Then insert the first positioning rod 17 and the second positioning rod 22 into the corresponding first mounting hole 18 and second mounting hole 23 through the first positioning hole 16 and the second positioning hole 21 respectively to complete the adjustment.
[0030] After the inner ring of the aerospace circlip blank is machined, it is removed. The output end of the electric cylinder 11 retracts, and the limit pin 13 is removed. The motor 5 starts the transmission flipping rod 6, causing the flipping plate 8 to flip. The infrared generator 30 emits an infrared signal, which is received by the infrared sensor 31 through the infrared through hole 29. An electrical signal is transmitted to the controller, controlling the motor 5 to stop rotating. The output end of the electric cylinder 11 extends into the limit hole 12, inserts the limit pin 13 to lock the flipping plate 8, and prepares to clamp the inner ring of the aerospace circlip blank.
[0031] The second electric slide rail 26 is activated, bringing the two push blocks 27 closer together. Then, the aerospace clasp blank ring is placed so that its inner ring aligns with its silicone plate 28. The second electric slide rail 26 is then activated again, causing the two push blocks 27 to separate and clamp the inner ring of the aerospace clasp blank ring.
[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A fixing mechanism for aerospace ferrules, comprising a base plate (1), characterized in that: The top of the base plate (1) is provided with a support mechanism for support, and a flipping mechanism for flipping the working surface is provided on one side of the support mechanism. A limiting mechanism for limiting the position of the flipping mechanism is provided on the inner side of the support mechanism. The top of the flipping mechanism is provided with an outer ring clamping mechanism for clamping the outer ring of the aerospace caliper, the bottom of the flipping mechanism is provided with an inner ring clamping mechanism for clamping the inner ring of the aerospace caliper, and the inside of the support mechanism is provided with a detection mechanism for detecting whether the flipping is in place.
2. The fixing mechanism for an aerospace retaining ring according to claim 1, characterized in that: The support mechanism includes a support rod (2), which is set on the top of the base plate (1). A support frame (3) is set on the top of the support rod (2), and a mounting bracket (4) is set on the top of the base plate (1).
3. The fixing mechanism for an aerospace retaining ring according to claim 2, characterized in that: The flipping mechanism includes a motor (5) and a flipping plate (8). The motor (5) is located on one side of the support frame (3) and at the top of the mounting frame (4). The flipping plate (8) is located inside the mounting frame (4). The output end of the motor (5) is provided with a flipping rod (6). The outer wall of the flipping rod (6) is fitted with a first bearing (7). The first bearing (7) is located inside the support frame (3). The side of the flipping plate (8) away from the flipping rod (6) is provided with a fixing rod (9). The outer ring of the fixing rod (9) is fitted with a second bearing (10).
4. The fixing mechanism for an aerospace retaining ring according to claim 3, characterized in that: The limiting mechanism includes an electric cylinder (11), which is located inside the support frame (3) and its output end points toward the flip plate (8). A limiting hole (12) is provided on the side of the flip plate (8) corresponding to the electric cylinder (11). The limiting hole (12) corresponds to the output end of the electric cylinder (11). A limiting pin (13) is provided above the support frame (3). The limiting pin (13) passes through the support frame (3), the first bearing (7), and the flip rod (6) respectively.
5. The fixing mechanism for an aerospace retaining ring according to claim 4, characterized in that: The outer ring clamping mechanism includes a first mounting plate (14), which is disposed on the top of the flip plate (8). A first clamping plate (15) is disposed above the first mounting plate (14). A first positioning hole (16) is opened above the first clamping plate (15). A corresponding first positioning rod (17) is disposed inside the first positioning hole (16). A first mounting hole (18) is opened above the flip plate (8). The first mounting hole (18) corresponds to the first positioning rod (17). (14) has a placement plate (19) at the top, and a second clamping plate (20) is provided on the top of the placement plate (19). A second positioning hole (21) is provided above the second clamping plate (20). A corresponding second positioning rod (22) is provided inside the second positioning hole (21). A second mounting hole (23) is provided above the placement plate (19). A first electric slide rail (24) is provided inside the first mounting plate (14). The moving end of the first electric slide rail (24) is respectively installed at the bottom of the second clamping plate (20).
6. The aerospace retaining ring fixing mechanism according to claim 5, characterized in that: The inner ring clamping mechanism includes a second mounting plate (25), which is located at the bottom of the flip plate (8). A second electric slide rail (26) is provided inside the second mounting plate (25). A push block (27) is installed on the moving end surface of the second electric slide rail (26), and a silicone plate (28) is provided on one side of the push block (27).
7. The fixing mechanism for an aerospace retaining ring according to claim 6, characterized in that: The detection mechanism includes an infrared sensor (31), which is located inside the support frame (3). An infrared through hole (29) is opened inside the flip plate (8), and an infrared generator (30) is located inside the support frame (3).