Sealing ring clamp for machining

Abstract

The utility model discloses a sealing ring fixture for machining. The sealing ring fixture comprises a base, the annular mounting seat is arranged on the base; a plurality of elastic clamping seats are uniformly distributed on the annular mounting seat; the multiple sliding blocks are installed in the annular installation base in a sliding mode. The two ends of the connecting rod are hinged to the elastic clamping base and the sliding block respectively. The electric cylinder is arranged on the base and located on the inner side of the annular mounting base. The sealing ring is movably connected to the elastic clamping base in a clamped mode, the electric cylinder is started to drive the locking block to abut against the sliding blocks and drive the sliding blocks to move, and the locking block is arranged at the output end of the electric cylinder and located on one side of the sliding blocks. The sliding blocks move to drive the connecting rods to rotate relatively to lock the elastic clamping seats, so that the sealing rings on the elastic clamping seats are locked, and the problem that the sealing rings deform or crack at the clamping positions due to the fact that large local stress is generated at the two ends of the sealing rings due to extrusion of the clamping jaws is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of aerospace component processing, and specifically relates to a sealing ring clamp used for mechanical processing. Background Art

[0002] In the application of aerospace engines, the main function of the sealing ring is to reduce airflow loss, improve the compression ratio and turbine efficiency, and thus improve the performance of the engine.

[0003] At present, when processing a sealing ring, it is usually necessary to fix the sealing ring on a chuck for clamping. However, when the claws squeeze and clamp the two ends of the sealing ring, the squeezing of the claws will generate large local stress on the two ends of the sealing ring, which can easily cause the sealing ring to deform or break at the clamping point. For this reason, a sealing ring clamp for mechanical processing is provided. Utility Model Content

[0004] The purpose of the utility model is to provide a sealing ring clamp for mechanical processing, so as to solve the problem that when the clamping claws squeeze and clamp the two ends of the sealing ring, the squeezing of the clamping claws will generate large local stress on the two ends of the sealing ring, which may easily cause the sealing ring to deform or break at the clamping point.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solution: a sealing ring fixture for machining, comprising:

[0006] base;

[0007] An annular mounting seat, arranged on the base;

[0008] There are several elastic clamping seats evenly distributed on the annular mounting seat;

[0009] Slide blocks are provided in plurality and are slidably mounted in the annular mounting seat and are arranged in one-to-one correspondence with the elastic mounting seats;

[0010] A connecting rod is located inside the annular mounting seat, and its two ends are hingedly connected to the elastic holder and the slider respectively;

[0011] An electric cylinder is provided on the base and is located inside the annular mounting seat;

[0012] The locking block is arranged at the output end of the electric cylinder and is located on one side of the plurality of sliding blocks.

[0013] Preferably, the elastic holder includes a spring piece fixedly mounted on the annular mounting seat, the spring piece is provided with an arc-shaped holder, and the arc-shaped holder is provided with a slot for mounting a sealing ring.

[0014] Preferably, the locking block is located above the plurality of sliders, the card slot is arranged on the inner side of the arc-shaped card seat, and the cross section of the card slot is arranged to be L-shaped.

[0015] Preferably, the locking block is located below the plurality of sliders, the card slot is arranged on the outside of the arc-shaped card seat, and the cross section of the card slot is arranged to be V-shaped.

[0016] Preferably, an arc-shaped guide plate for guiding the sealing ring into the slot is obliquely provided on the arc-shaped holder.

[0017] Preferably, a buffer pad is provided on the inner side of the card slot.

[0018] Preferably, the base is provided with a plurality of guide rods respectively passing through the sliders.

[0019] Preferably, the locking block includes a resistance block arranged at the output end of the electric cylinder, and the side wall of the resistance block is provided with a plurality of U-shaped openings located outside the guide rod.

[0020] Compared with the prior art, the beneficial effects of the present invention are as follows: the present invention is a sealing ring clamp for mechanical processing. When in use, the sealing ring is movably clamped on the elastic clamping seat, the electric cylinder is started to drive the locking block to contact with a number of sliders, and drive the several sliders to move. The movement of the slider drives the connecting rod to rotate relative to lock the elastic clamping seat, thereby locking the sealing rings on the several elastic clamping seats, avoiding the squeezing of the claws to generate large local stress on the two ends of the sealing ring, causing the sealing ring to deform or rupture at the clamping point. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the main cross-sectional structure of Example 1 of the present utility model;

[0022] Figure 2 This is a schematic diagram of the top view of the structure of Example 1 of the present utility model;

[0023] Figure 3 for Figure 1 A schematic diagram of the partially enlarged structure at point B;

[0024] Figure 4 This is a schematic diagram of the main cross-sectional structure of Example 2 of the present utility model;

[0025] Figure 5 This is a schematic diagram of the top view of the structure of Example 2 of the present utility model;

[0026] Figure 6 for Figure 4 Schematic diagram of the local enlarged structure at point A.

[0027] In the figure: 1. Base; 2. Annular mounting seat; 3. Elastic holder; 3-1. Spring piece; 3-2. Arc holder; 3-3. Slot; 3-4. Buffer pad; 4. Slider; 5. Connecting rod; 6. Electric cylinder; 7. Locking block; 7-1. Interference block; 7-2. U-shaped opening; 8. Arc guide plate; 9. Guide rod. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0029] Example 1:

[0030] See also Figure 1-3 The utility model provides a technical solution: a sealing ring clamp for machining, comprising a base 1; an annular mounting seat 2 is arranged on the base 1; a plurality of elastic clamping seats 3 are provided, evenly distributed on the annular mounting seat 2, and a plurality of elastic clamping seats 3 are distributed in an annular shape on the top of the annular mounting seat 2, with a gap between two adjacent elastic clamping seats 3; a plurality of sliders 4 are provided, slidably mounted in the annular mounting seat 2, and the sliders 4 can move up and down in the annular mounting seat 2, and are arranged one-to-one with the elastic clamping seats 3; a connecting rod 5 is located on the inner side of the annular mounting seat 2, and its two ends are respectively hinged to the elastic clamping seat 3 and the slider 4 Connection; the electric cylinder 6 is arranged on the base 1 and is located on the inner side of the annular mounting base 2; the locking block 7 is arranged at the output end of the electric cylinder 6 and is located on one side of the plurality of sliders 4. When in use, the sealing ring is movably connected to the elastic clamping seat 3, the electric cylinder 6 is started to drive the locking block 7 to contact the plurality of sliders 4, and drive the plurality of sliders 4 to move. The movement of the slider 4 drives the connecting rod 5 to rotate relative to lock the elastic clamping seat 3, thereby locking the sealing rings on the plurality of elastic clamping seats 3, avoiding the squeezing of the claws which will generate large local stress on the two ends of the sealing ring, resulting in deformation or rupture of the sealing ring at the clamping point.

[0031] Specifically, the elastic holder 3 includes a spring piece 3-1 fixedly mounted on the annular mounting seat 2, an arc-shaped holder 3-2 is provided on the spring piece 3-1, and a slot 3-3 for installing a sealing ring is provided on the arc-shaped holder 3-2. During the installation of the sealing ring, the sealing ring deforms the spring piece 3-1, so that the sealing ring enters the slot 3-3 on the arc-shaped holder 3-2, thereby realizing the movable snap-fit installation of the sealing ring.

[0032] Specifically, the locking block 7 is located above the sliders 4, the slot 3-3 is arranged on the inner side of the arc-shaped base 3-2, and the cross section of the slot 3-3 is set to L-shaped. The L-shaped slot 3-3 is used to contact the outer wall of the sealing ring, which is convenient for processing the inner wall of the sealing ring. When in use, after the sealing ring is movably connected to the slot 3-3, the electric cylinder 6 is started to drive the locking block 7 to descend and contact with the sliders 4, and drive the sliders 4 to descend. The descent of the slider 4 drives the connecting rod 5 to rotate relative to lock the elastic base 3, thereby clamping the outer wall of the sealing ring.

[0033] Specifically, an arc-shaped guide plate 8 for guiding the sealing ring into the slot 3-3 is inclined on the arc-shaped holder 3-2. Several arc-shaped guide plates 8 form a funnel shape that is wide at the top and narrow at the bottom, which facilitates the sealing ring to enter the slot 3-3.

[0034] Specifically, a buffer pad 3-4 is provided on the inner side of the card slot 3-3. The buffer pad 3-4 is provided to avoid wear between the card slot 3-3 and the sealing ring, which affects the processing accuracy of the sealing ring.

[0035] Specifically, a plurality of guide rods 9 are provided on the base 1 and respectively penetrate the sliders 4 . The sliders 4 are slidably mounted on the guide rods 9 , thereby ensuring the stability of the sliders 4 when sliding up and down in the annular mounting seat 2 .

[0036] Specifically, the locking block 7 includes a contact block 7-1 arranged at the output end of the electric cylinder 6. The side wall of the contact block 7-1 is provided with several U-shaped openings 7-2 located on the outside of the guide rod 9. By setting the U-shaped openings 7-2, the position of the contact block 7-1 close to the U-shaped openings 7-2 is in contact with the slider 4, ensuring the uniformity of the force on the slider 4. When in use, the electric cylinder 6 is started to drive the contact block 7-1 to move, thereby driving several sliders 4 to move.

[0037] Example 2:

[0038] See also Figure 4-6 The present invention provides a technical solution: a sealing ring clamp for mechanical processing, which is different from the embodiment 1 in that the locking block 7 is located below the plurality of sliders 4, the slot 3-3 is arranged on the outside of the arc-shaped clamping seat 3-2, and the cross section of the slot 3-3 is set to be V-shaped. The V-shaped slot 3-3 is used to contact the inner wall of the sealing ring, which is convenient for processing the outer wall of the sealing ring. When in use, after the sealing ring is movably clamped in the slot 3-3, the electric cylinder 6 is started to drive the locking block 7 to rise and contact with the plurality of sliders 4, and drive the plurality of sliders 4 to rise. The rising of the sliders 4 drives the connecting rod 5 to rotate relatively to support and lock the elastic clamping seat 3, thereby clamping the inner wall of the sealing ring. An arc guide plate 8 for guiding the sealing ring to the slot 3-3 is inclined on the arc clamping seat 3-2. The plurality of arc guide plates 8 form a truncated cone shape that is narrow on the top and wide on the bottom, which is convenient for the sealing ring to be clamped in the slot 3-3.

[0039] Working principle: During the use of this new type, the sealing ring is first movably connected to the elastic base 3, and the electric cylinder 6 is started to drive the locking block 7 to contact with several sliders 4, and drive several sliders 4 to move. The movement of the slider 4 drives the connecting rod 5 to rotate relative to lock the elastic base 3, thereby locking the sealing rings on several elastic bases 3.

[0040] In the description of the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "connected," and "fixed" should be understood in a broad sense. For example, they may refer to fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; and internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention in specific circumstances.

[0041] The standard parts used in the present invention can all be purchased from the market, and special-shaped parts can be customized according to the description in the specification and the drawings. The specific connection methods of each part adopt conventional means such as mature bolts, rivets, welding, etc. in the existing technology. The machinery, parts and equipment all adopt conventional models in the existing technology, and the circuit connection adopts the conventional connection method in the existing technology, which will not be described in detail here.

[0042] 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 variations may be made to these embodiments without departing from the principles and spirit of the invention, and the scope of the invention is defined by the appended features and their equivalents.

Claims

1. A sealing ring fixture for machining, characterized in that: include: Base (1); An annular mounting seat (2) is arranged on the base (1); A plurality of elastic clamping seats (3) are provided and evenly distributed on the annular mounting seat (2); A plurality of sliders (4) are provided, which are slidably mounted in the annular mounting seat (2) and are arranged in a one-to-one correspondence with the elastic clamping seat (3); A connecting rod (5) is located inside the annular mounting seat (2), and its two ends are respectively hingedly connected to the elastic clamping seat (3) and the slider (4); An electric cylinder (6) is arranged on the base (1) and is located inside the annular mounting seat (2); A locking block (7) is arranged at the output end of the electric cylinder (6) and is located on one side of the plurality of slide blocks (4).

2. A sealing ring fixture for machining according to claim 1, characterized in that: The elastic clamping seat (3) comprises a spring piece (3-1) fixedly mounted on the annular mounting seat (2); an arc-shaped clamping seat (3-2) is provided on the spring piece (3-1); and a clamping groove (3-3) for mounting a sealing ring is provided on the arc-shaped clamping seat (3-2).

3. The sealing ring fixture for machining according to claim 2, characterized in that: The locking block (7) is located above the plurality of sliders (4), the card slot (3-3) is arranged on the inner side of the arc-shaped card seat (3-2), and the cross section of the card slot (3-3) is arranged to be L-shaped.

4. The sealing ring fixture for machining according to claim 2, characterized in that: The locking block (7) is located below the plurality of sliders (4), the card slot (3-3) is arranged outside the arc-shaped card seat (3-2), and the cross section of the card slot (3-3) is arranged to be V-shaped.

5. The sealing ring fixture for machining according to claim 2, characterized in that: An arc-shaped guide plate (8) for guiding the sealing ring to the clamping groove (3-3) is obliquely provided on the arc-shaped clamping seat (3-2).

6. The sealing ring fixture for machining according to claim 2, characterized in that: A buffer pad (3-4) is provided on the inner side of the card slot (3-3).

7. The sealing ring fixture for machining according to claim 1, characterized in that: The base (1) is provided with a plurality of guide rods (9) which respectively penetrate the sliders (4).

8. The sealing ring fixture for machining according to claim 7, characterized in that: The locking block (7) comprises a contact block (7-1) arranged at the output end of the electric cylinder (6); a side wall of the contact block (7-1) is provided with a plurality of U-shaped openings (7-2) located outside the guide rod (9).

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