Fixing mechanism for machining aerospace retainer ring

Abstract

The utility model provides a fixing mechanism for processing an aerospace retainer ring, which belongs to the technical field of aerospace part production, and comprises a bottom plate, four support columns are fixedly connected on the upper surface of the bottom plate in an annular array mode, a transmission structure is arranged among the four support columns, and the four support columns are fixedly connected with the bottom plate. A fixing disc is fixedly connected to the upper surface of the supporting column, a cross-shaped fixing rod is fixedly connected to the upper surface of the fixing disc, and a side notch is formed in the tail end of the cross-shaped fixing rod. A transmission structure is arranged on the lower side of the device, a clamping structure is arranged at the tail end of a cross-shaped fixing rod, a motor drives a threaded rod to rotate, then a transmission disc is controlled to move up and down, in the displacement process of the transmission disc, a connecting plate can drive the fixing rod and a central block to rotate around a rotating shaft, and then rotation of a side block and a clamping plate is achieved; therefore, the clamping ring is clamped and fixed.

Description

Technical Field

[0001] This utility model belongs to the field of aerospace component manufacturing technology, and in particular relates to a fixing mechanism for processing aerospace retaining rings. Background Technology

[0002] Aerospace-grade retaining rings are crucial components connecting the engine casing and rotor, serving multiple important functions. First, the retaining ring, through its blades generating centrifugal force at high speeds, stabilizes airflow, preventing stall and ensuring normal engine operation. Second, the retaining ring acts as a buffer, reducing engine noise and vibration during operation, improving cabin comfort and flight safety. Furthermore, the retaining ring protects the rotor and casing from direct contact, preventing friction and wear, thus extending engine life and improving reliability.

[0003] A current publication, CN220679176U, discloses a fixing mechanism for processing aerospace circlips, comprising a base and an aerospace circlip. A rotating shaft is fixedly installed on the inner bottom of the base, and a gear is rotatably mounted on the surface of the rotating shaft. A sliding rod is fixedly installed on the opposite side of the base, and a transverse fixing component for transversely fixing the aerospace circlip is slidably installed on the surface of the sliding rod. A rack is fixedly installed on the bottom surface of both sets of transverse fixing components, and the rack and gear on the bottom surface of the two sets of transverse fixing components are staggered and meshed. A hydraulic rod is fixedly installed on the right side wall of the base, and the output end of the hydraulic rod is fixedly installed on the right side wall of the right transverse fixing component.

[0004] Existing fixing mechanisms for machining aerospace calipers still have the following shortcomings:

[0005] 1. Existing fixing mechanisms can only clamp the symmetrical sides of aerospace retaining rings. During the clamping process, insufficient clamping force or slippage of the retaining ring can easily occur, affecting subsequent processing.

[0006] 2. Clamp and support the outer side of the circlip. When machining aerospace circlips, the inner side of the circlip will be subjected to a large impact force, which can easily cause machining damage to the inner side of the circlip. Utility Model Content

[0007] The purpose of this invention is to solve the problem that existing fixing mechanisms can only clamp the symmetrical sides of aerospace retaining rings, which is prone to insufficient clamping force or slippage during the clamping process, affecting subsequent processing. When clamping and supporting the outer side of the retaining ring, the inner side of the retaining ring is subjected to a large impact force during processing, which can easily cause processing damage to the inner side of the retaining ring. Therefore, this invention proposes a fixing mechanism for processing aerospace retaining rings.

[0008] To achieve the above objectives, the present invention adopts the following technical solution:

[0009] A fixing mechanism for processing aerospace circlips includes: a base plate, four support columns fixedly connected in a ring array on the upper surface of the base plate, a transmission structure between the four support columns, a fixing plate fixedly connected to the upper surface of the support columns, a cross fixing rod fixedly connected to the upper surface of the fixing plate, a side groove provided at the end of the cross fixing rod, a clamping structure provided at the end of the cross fixing rod, and a vertical support structure provided inside the cross fixing rod;

[0010] Preferably, the transmission structure includes a motor, the output end of which is fixedly connected to a threaded rod, the upper end of which is rotatably connected to the lower surface of a fixed disk, the threaded rod passing through and threadedly connected to a transmission disk, and four fixed blocks fixedly connected in a ring array on the upper surface of the transmission disk.

[0011] Preferably, the clamping structure includes a rotating shaft, a central block is provided in the side slot, the rotating shaft passes through the cross fixing rod and the central block, the rotating shaft is rotatably connected in the cross fixing rod, side blocks are fixedly connected to both ends of the rotating shaft, a clamping plate is fixedly connected to the upper end of the side block, an inner slot is provided on the inner side of the clamping plate, a support pad is fixedly connected to the upper surface of the cross fixing rod, and the support pad is disposed between the two clamping plates;

[0012] Preferably, a fixing rod is fixedly connected to the side of the central block near the motor, and a connecting plate is rotatably connected to the side of the fixing rod away from the central block, with the end of the connecting plate rotatably connected to the side of the fixing block.

[0013] Preferably, the cross-shaped fixing rod is provided with two pairs of through slots, the two pairs of through slots are perpendicular to each other, and the vertical support structure is provided inside the cross-shaped fixing rod;

[0014] Preferably, the vertical support structure includes a gear shaft, which is rotatably connected to a cross-shaped fixing rod. A built-in motor is installed inside the cross-shaped fixing rod, and the output end of the built-in motor is fixedly connected to the upper end of the gear shaft. A transmission rod is slidably connected inside the through groove, and a toothed groove is provided on the inner side of the transmission rod. The gear shaft is meshed with the toothed groove. A support block is fixedly connected to the upper surface of the end of the transmission rod, and the upper surface of the support block is flush with the upper end of the support pad column.

[0015] Compared with the prior art, the present invention has the following advantages:

[0016] 1. This utility model sets a transmission structure on the lower side of the device and a clamping structure at the end of the cross-shaped fixing rod. The motor drives the threaded rod to rotate, thereby controlling the up and down displacement of the transmission disc. During the displacement of the transmission disc, the connecting plate can drive the fixing rod and the central block to rotate around the rotating shaft, thereby realizing the rotation of the side block and the clamping plate, thus achieving the clamping and fixing of the retaining ring.

[0017] 2. This utility model sets a vertical support structure inside the cross-shaped fixing rod, and controls the rotation of the gear shaft by the built-in motor, so that each set of transmission rods can transmit in opposite directions on both sides at the same time. When the outer side of the retaining ring is placed on the upper surface of the support pad column, the inner side of the retaining ring can be supported by the support block, thus providing better support for the retaining ring. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the outer structure of a fixing mechanism for processing aerospace circlips proposed in this utility model;

[0019] Figure 2 This is a top-view structural diagram of a fixing mechanism for processing aerospace ferrules proposed in this utility model;

[0020] Figure 3 for Figure 2 Enlarged view of section A;

[0021] Figure 4 This is a schematic diagram of the vertical support structure of a fixing mechanism for processing aerospace circlips proposed in this utility model.

[0022] In the diagram: 1. Base plate, 2. Support column, 3. Fixing plate, 4. Cross fixing rod, 5. Side slot, 6. Rotating shaft, 7. Central block, 8. Side block, 9. Clamping plate, 10. Inner slot, 11. Support pad column, 12. Fixing block, 13. Connecting plate, 14. Fixing rod, 15. Threaded rod, 16. Transmission plate, 17. Motor, 18. Gear shaft, 19. Transmission rod, 20. Gear groove, 21. Support block, 22. Through slot. Detailed Implementation

[0023] The technical solution of this utility model will be further described below with reference to the accompanying drawings and embodiments.

[0024] Reference Figures 1-4 A fixing mechanism for processing aerospace circlips includes: a base plate 1, four support columns 2 fixedly connected in a ring array on the upper surface of the base plate 1, a transmission structure between the four support columns 2, a fixing disk 3 fixedly connected to the upper surface of the support columns 2, a cross fixing rod 4 fixedly connected to the upper surface of the fixing disk 3, a side groove 5 provided at the end of the cross fixing rod 4, a clamping structure provided at the end of the cross fixing rod 4, and a vertical support structure provided inside the cross fixing rod 4;

[0025] The transmission structure includes a motor 17, the output end of the motor 17 is fixedly connected to a threaded rod 15, the upper end of the threaded rod 15 is rotatably connected to the lower surface of the fixed disk 3, the threaded rod 15 passes through and is threadedly connected to a transmission disk 16, and four fixed blocks 12 are fixedly connected in a ring array on the upper surface of the transmission disk 16.

[0026] The clamping structure includes a rotating shaft 6, a central block 7 is provided in the side slot 5, the rotating shaft 6 passes through the cross fixing rod 4 and the central block 7, the rotating shaft 6 is rotatably connected in the cross fixing rod 4, both ends of the rotating shaft 6 are fixedly connected to side blocks 8, the upper end of the side blocks 8 is fixedly connected to a clamping plate 9, the inner side of the clamping plate 9 is provided with an inner slot 10, the upper surface of the cross fixing rod 4 is fixedly connected to a support pad 11, and the support pad 11 is provided between the two clamping plates 9;

[0027] A fixing rod 14 is fixedly connected to the side of the central block 7 near the motor 17. A connecting plate 13 is rotatably connected to the side of the fixing rod 14 away from the end of the central block 7. The end of the connecting plate 13 is rotatably connected to the side of the fixing block 12. By setting a transmission structure on the lower side of the device and setting a clamping structure at the end of the cross fixing rod 4, the motor 17 drives the threaded rod 15 to rotate, thereby controlling the up and down displacement of the transmission disk 16. During the displacement of the transmission disk 16, the connecting plate can drive the fixing rod 14 and the central block 7 to rotate around the rotating shaft 6, thereby realizing the rotation of the side block 8 and the clamping plate 9, thus realizing the clamping and fixing of the retaining ring.

[0028] The cross-shaped fixing rod 4 is provided with two pairs of through slots 22, which are perpendicular to each other, and the vertical support structure is provided inside the cross-shaped fixing rod 4.

[0029] The vertical support structure includes a gear shaft 18, which is rotatably connected to a cross-shaped fixing rod 4. A built-in motor is installed inside the cross-shaped fixing rod 4, and the output end of the built-in motor is fixedly connected to the upper end of the gear shaft 18. A transmission rod 19 is slidably connected in a through groove 22. A toothed groove 20 is provided on the inner side of the transmission rod 19, and the gear shaft 18 is meshed with the toothed groove 20. A support block 21 is fixedly connected to the upper surface of the end of the transmission rod 19. The upper surface of the support block 21 is flush with the upper end of the support pad 11. By setting the vertical support structure inside the cross-shaped fixing rod 4, the built-in motor controls the rotation of the gear shaft 18, thereby enabling each set of transmission rods 19 to transmit in opposite directions simultaneously. When the outer side of the retaining ring 1 is placed on the upper surface of the support pad 11, the support block 21 can support the inner side of the retaining ring, thus providing better support for the retaining ring.

[0030] The functional principle of this utility model can be explained through the following operation methods:

[0031] By setting a transmission structure on the lower side of the device and a clamping structure at the end of the cross-shaped fixing rod 4, the motor 17 drives the threaded rod 15 to rotate, thereby controlling the up and down displacement of the transmission disc 16. During the displacement of the transmission disc 16, the connecting plate can drive the fixing rod 14 and the central block 7 to rotate around the rotating shaft 6, thereby realizing the rotation of the side block 8 and the clamping plate 9, thus achieving the clamping and fixing of the retaining ring.

[0032] By setting a vertical support structure inside the cross-shaped fixing rod 4, the gear shaft 18 is rotated by the built-in motor, thereby enabling each set of transmission rods 19 to transmit in opposite directions simultaneously. When the outer side of the retaining ring 1 is placed on the upper surface of the support pad column 11, the inner side of the retaining ring can be supported by the support block 21, thus providing better support for the retaining ring.

[0033] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A fixture for machining an aerospace collar, the fixture comprising: The utility model provides a kind of vertical support structure, including bottom plate (1), the upper surface of the bottom plate (1) is fixedly connected with four support columns (2) in annular array, transmission structure is provided between four support columns (2), the upper surface of the support column (2) is fixedly connected with fixed disc (3), the upper surface of the fixed disc (3) is fixedly connected with cross fixed rod (4), the end of the cross fixed rod (4) is provided with side notch (5), the end of the cross fixed rod (4) is provided with clamping structure, the cross fixed rod (4) is provided with vertical support structure in.

2. A fixture for machining an aerospace collar according to claim 1, wherein, Wherein: The transmission structure includes motor (17), the output end of the motor (17) is fixedly connected with threaded rod (15), the upper end of the threaded rod (15) is rotatably connected to the lower surface of fixed disc (3), the threaded rod (15) is penetrated and is threadedly connected with transmission disc (16), the upper surface of the transmission disc (16) is fixedly connected with four fixed blocks (12) in annular array.

3. A fixture for machining an aerospace collar according to claim 2, wherein, Wherein: The clamping structure includes rotating shaft (6), the side notch (5) is provided with central block (7), the rotating shaft (6) penetrates cross fixed rod (4) and central block (7), the rotating shaft (6) is rotatably connected in cross fixed rod (4), the both ends of the rotating shaft (6) are fixedly connected with side block (8), the upper end of the side block (8) is fixedly connected with clamping plate (9), the inner side of the clamping plate (9) is provided with inner notch (10), the upper surface of the cross fixed rod (4) is fixedly connected with support cushion column (11), the support cushion column (11) is arranged between two clamping plates (9).

4. The fixture for machining an aerospace collar according to claim 3, wherein, Wherein: The side of the central block (7) close to motor (17) is fixedly connected with fixed rod (14), the side of the end of the fixed rod (14) away from the central block (7) is rotatably connected with connecting plate (13), the end of the connecting plate (13) is rotatably connected to the side of fixed block (12).

5. The fixture for machining an aerospace collar according to claim 3, wherein, Wherein: The cross fixed rod (4) is provided with two pairs of through grooves (22) in, two pairs of the through grooves (22) are perpendicular to each other, and the vertical support structure is arranged in the cross fixed rod (4).

6. A fixture for machining an aerospace collar according to claim 5, wherein, Wherein: The vertical support structure includes gear shaft (18), the gear shaft (18) is rotatably connected in the cross fixed rod (4), the cross fixed rod (4) is provided with built-in motor, the output end of the built-in motor is fixedly connected to the upper end of the gear shaft (18), the through groove (22) is slidably connected with transmission rod (19), the inner side of the transmission rod (19) is provided with gear slot (20), the gear shaft (18) is meshedly connected in the gear slot (20), the upper surface of the end of the transmission rod (19) is fixedly connected with support block (21), and the upper surface of the support block (21) is flush with the upper end of the support cushion column (11).

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