A special fixture for machining high-temperature alloy spherical nut

Abstract

The utility model provides a special fixture for processing high temperature alloy spherical nut, include: nut body, the inner wall of nut body is provided with internal thread, still include: base, the bottom of base is provided with two mounting plates symmetrically, a plurality of limit structure, a plurality of limit structure equidistance is arranged on the base, and the limit structure is used for the location of nut body, two groups of drive structure, two groups drive structure symmetry is installed on the mounting plate, and the output of drive structure is engaged with the bottom of limit structure and is connected, the utility model provides a special fixture for processing high temperature alloy spherical nut, after putting nut body into the placing seat, through the rotation of rotating shaft and carousel that pusher device drives, make that external thread and internal thread thread connection, move nut body to the bottom of placing seat, through placing seat and carousel to the location of nut body, avoid the deviation, rotate, prevent the influence that causes to work piece quality.

Description

Technical Field

[0001] This utility model relates to the field of spherical nut processing, and in particular to a special fixture for processing high-temperature alloy spherical nuts. Background Technology

[0002] A spherical nut is a fastener with a special structure. Its core feature is that a spherical surface is machined at one end of the nut. This arc-shaped contact surface enables functions such as angle compensation and stress concentration reduction. It is widely used in scenarios where it is necessary to accommodate small angular deviations between connecting parts.

[0003] When machining the spherical surface of a spherical nut, the cutting tool will generate radial or axial cutting force when it comes into contact with the spherical nut. If the nut is not fixed, it will shift, rotate or vibrate due to the force, resulting in higher surface roughness of the spherical surface or deviation from the coaxiality of the internal thread.

[0004] Therefore, it is necessary to provide a special fixture for machining high-temperature alloy spherical nuts to solve the above-mentioned technical problems. Utility Model Content

[0005] This invention provides a special fixture for machining high-temperature alloy spherical nuts, which solves the problem of tool displacement, rotation or vibration caused by force when in contact with the spherical nut.

[0006] To solve the above-mentioned technical problems, the present invention provides a special fixture for processing high-temperature alloy spherical nuts, comprising: a nut body, wherein the inner wall of the nut body is provided with internal threads, and a base, wherein two mounting plates are symmetrically arranged at the bottom of the base;

[0007] Multiple limiting structures are equally spaced on the base, and the limiting structures are used to limit the nut body;

[0008] Two sets of drive structures are symmetrically mounted on the mounting plate, and the output end of the drive structure is engaged with the bottom of the limiting structure.

[0009] Preferably, the limiting structure includes a placement seat, a rotating shaft, a turntable, an external thread, and a gear. The placement seat is installed above the base. The rotating shaft passes through the base and is rotatably connected to the base. The turntable is installed at one end of the top of the rotating shaft. The external thread is formed on the outer wall of the turntable and is threadedly connected to the internal thread. The gear is installed at one end of the bottom of the rotating shaft.

[0010] Preferably, the drive structure includes a pushing device and a toothed plate, the pushing device is mounted on the mounting plate, the toothed plate is mounted on the output end of the pushing device, and the toothed plate is meshed with the gear.

[0011] Preferably, the driving structure further includes a limiting rod, one end of which is mounted on the mounting plate symmetrical to the pushing device, and a sliding groove is provided in the toothed plate, and the other end of the limiting rod is slidably mounted in the sliding groove.

[0012] Preferably, the special fixture for processing high-temperature alloy spherical nuts further includes a clamping structure, which is mounted on the base and located within the placement seat, and the clamping structure is used to limit the position of the nut body.

[0013] Preferably, the abutting structure includes a buffer seat and a frustum, the buffer seat being installed inside the placement seat and the frustum being installed above the buffer seat.

[0014] Preferably, the top diameter of the frustum is smaller than the diameter of the internal thread, and the bottom diameter of the frustum is larger than the diameter of the internal thread.

[0015] Compared with related technologies, the special fixture for machining high-temperature alloy spherical nuts provided by this utility model has the following advantages:

[0016] This utility model provides a special fixture for processing high-temperature alloy spherical nuts. After the nut body is placed in the placement seat, the pushing device is activated. The toothed plate drives the rotating shaft and turntable to rotate through the gear, so that the external thread and the internal thread are threaded together, and the nut body is moved downward to the bottom of the placement seat. The placement seat and the turntable limit the nut body to prevent displacement or rotation, and prevent it from affecting the quality of the workpiece. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of a preferred embodiment of the special fixture for machining high-temperature alloy spherical nuts provided by this utility model;

[0018] Figure 2 This is a cross-sectional view of the present invention;

[0019] Figure 3 This is a cross-sectional schematic diagram of the limiting structure of this utility model;

[0020] Figure 4 This is a bottom view of the structure of this utility model;

[0021] Figure 5 This is a schematic diagram of the driving structure of this utility model;

[0022] Figure 6 This is a cross-sectional schematic diagram of the toothed plate of this utility model;

[0023] Figure 7This is a cross-sectional schematic diagram of the clamping structure of this utility model.

[0024] Numbering on the map:

[0025] 1. Nut body; 11. Internal thread;

[0026] 2. Base; 21. Mounting plate;

[0027] 3. Limiting structure; 31. Placement seat; 32. Rotating shaft; 33. Turntable; 331. External thread; 34. Gear;

[0028] 4. Drive structure; 41. Pushing device; 42. Tooth plate; 421. Slide groove; 43. Limiting rod;

[0029] 5. Clamping structure; 51. Buffer seat; 52. Frustum. Detailed Implementation

[0030] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0031] First Embodiment

[0032] Please refer to the following: Figure 1 and Figure 2 A special fixture for processing high-temperature alloy spherical nuts includes: a nut body 1, the inner wall of which is provided with an internal thread 11, and a base 2, the bottom of which is symmetrically provided with two mounting plates 21;

[0033] Multiple limiting structures 3 are equally spaced on the base 2, and the limiting structures 3 are used to limit the nut body 1.

[0034] Two sets of drive structures 4 are symmetrically mounted on the mounting plate 21, and the output end of the drive structure 4 is engaged with the bottom of the limiting structure 3.

[0035] During processing, the nut body 1 is placed inside the limiting structure 3 to limit its movement. The drive structure 4 is then activated, and its output end drives the inside of the limiting structure 3 to rotate, causing the nut body 1 to penetrate deeper into the limiting structure 3 and be fixed in place to prevent offset or rotation, thus avoiding any impact on the quality of the workpiece. After processing is completed, the drive structure 4 is activated to work in reverse, causing the nut body 1 to be lifted upward from inside the limiting structure 3 and removed.

[0036] Please refer to the following: Figure 2 and Figure 3The limiting structure 3 includes a placement seat 31, a rotating shaft 32, a turntable 33, an external thread 331, and a gear 34. The placement seat 31 is installed above the base 2. The rotating shaft 32 passes through the base 2 and is rotatably connected to the base 2. The turntable 33 is installed at one end of the top of the rotating shaft 32. The external thread 331 is provided on the outer wall of the turntable 33, and the external thread 331 is threadedly connected to the internal thread 11. The gear 34 is installed at one end of the bottom of the rotating shaft 32.

[0037] During processing, the nut body 1 is placed in the placement seat 31. At this time, the bottom of the nut body 1 is in contact with the turntable 33. The interior of the placement seat 31 is hexagonal and fits tightly against the outer wall of the nut body 1. At the same time, two sets of drive structures 4 are activated. The output end drives the gear 34 and the rotating shaft 32 to rotate. The rotating shaft 32 drives the turntable 33 to rotate, so that the external thread 331 and the internal thread 11 are threadedly connected, and the nut body 1 is moved downward to the bottom of the placement seat 31. The placement seat 31 and the turntable 33 limit the nut body 1 to prevent it from shifting or rotating during processing.

[0038] Please refer to the following: Figure 2 , Figure 4 and Figure 5 The drive structure 4 includes a pusher 41 and a toothed plate 42. The pusher 41 is mounted on the mounting plate 21, and the toothed plate 42 is mounted on the output end of the pusher 41. The toothed plate 42 is meshed with the gear 34.

[0039] After the nut body 1 is placed into the placement seat 31, the pushing device 41 is activated. The output end drives the toothed plate 42 to move. The toothed plate 42 drives the rotating shaft 32 and the turntable 33 to rotate through the gear 34, so that the external thread 331 is threadedly connected to the internal thread 11, so that the nut body 1 is input into the placement seat 31 for fixed positioning. After the processing is completed, the pushing device 41 is activated to work in reverse. The toothed plate 42 drives the gear 34 and the turntable 33 to rotate in the opposite direction, releasing the threaded connection between the turntable 33 and the nut body 1. At the same time, the nut body 1 moves upward for easy removal.

[0040] Please refer to the following: Figure 4 , Figure 5 and Figure 6 The driving structure 4 also includes a limiting rod 43. One end of the limiting rod 43 is mounted on the mounting plate 21, which is symmetrical to the pushing device 41. A sliding groove 421 is also provided in the toothed plate 42, and the other end of the limiting rod 43 is slidably mounted in the sliding groove 421.

[0041] When the pushing device 41 drives the toothed plate 42 to move, the toothed plate 42 slides on the surface of the limiting rod 43 through the sliding groove 421, and the limiting rod 43 guides and limits the toothed plate 42.

[0042] Second Embodiment

[0043] Please refer to the following: Figure 2 and Figure 7 The special fixture for processing high-temperature alloy spherical nuts also includes a clamping structure 5, which is mounted on the base 2 and located inside the placement seat 31. The clamping structure 5 is used to limit the nut body 1.

[0044] In this embodiment, when the turntable 33 is threadedly connected to the nut body 1, and drives the nut body 1 to move downward, the top of the abutment structure 5 is inserted into the bottom of the nut body 1 and fits tightly against the inner wall of the nut body 1, further limiting and fixing it.

[0045] Please refer to the reference again. Figure 2 and Figure 7 The clamping structure 5 includes a buffer seat 51 and a frustum 52. The buffer seat 51 is installed inside the placement seat 31, and the frustum 52 is installed above the buffer seat 51.

[0046] When the nut body 1 moves toward the bottom of the placement seat 31, the frustum 52 is inserted into the interior of the nut body 1. After the bottom of the nut body 1 contacts the buffer seat 51, the outer wall of the frustum 52 fits tightly against the inner wall of the nut body 1, further limiting the nut body 1 and preventing shaking or displacement during processing.

[0047] Please refer to the following: Figure 7 The top diameter of the frustum 52 is smaller than the diameter of the internal thread 11, and the bottom diameter of the frustum 52 is larger than the diameter of the internal thread 11.

[0048] When the frustum 52 is inserted into the nut body 1, the top enters first. The frustum 52 has a certain elasticity. As the nut body 1 moves downward, the lower outer wall of the frustum 52 gradually contacts the inner wall of the nut body 1. When the bottom of the nut body 1 contacts the buffer seat 51, the outer wall of the bottom of the frustum 52 fits tightly against the inner wall of the nut body 1. The frustum 52 undergoes elastic deformation, which squeezes and limits the nut body 1.

[0049] The working principle of the special fixture for machining high-temperature alloy spherical nuts provided by this utility model is as follows:

[0050] During processing, the nut body 1 is placed in the placement seat 31. At this time, the bottom of the nut body 1 is in contact with the turntable 33. The interior of the placement seat 31 is hexagonal and fits tightly against the outer wall of the nut body 1. The pushing device 41 is activated, and the output end drives the toothed plate 42 to move. The toothed plate 42 drives the rotating shaft 32 and the turntable 33 to rotate through the gear 34, so that the external thread 331 is threadedly connected with the internal thread 11, moving the nut body 1 downward to the bottom of the placement seat 31. The placement seat 31 and the turntable 33 limit the nut body 1 to prevent offset or rotation, thus preventing any impact on the quality of the workpiece. After processing is completed, the pushing device 41 is activated to work in reverse. The toothed plate 42 drives the gear 34 and the turntable 33 to rotate in the opposite direction, releasing the threaded connection between the turntable 33 and the nut body 1. At the same time, the nut body 1 moves upward for easy removal. A frustum 52 is provided. When the nut body 1 moves towards the bottom of the placement seat 31, the frustum 52 is inserted into the nut body 1. The frustum 52 has a certain elasticity. As the nut body 1 moves downward, the lower outer wall of the frustum 52 gradually contacts the inner wall of the nut body 1. When the bottom of the nut body 1 contacts the buffer seat 51, the lower outer wall of the frustum 52 fits tightly against the inner wall of the nut body 1. The frustum 52 undergoes elastic deformation, which squeezes and limits the nut body 1.

[0051] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A special fixture for machining high-temperature alloy spherical nuts, comprising: The nut body, wherein the inner wall of the nut body is provided with internal threads, is characterized in that it further includes: a base, wherein two mounting plates are symmetrically arranged at the bottom of the base; Multiple limiting structures are equally spaced on the base, and the limiting structures are used to limit the nut body; Two sets of drive structures are symmetrically mounted on the mounting plate, and the output end of the drive structure is engaged with the bottom of the limiting structure.

2. The special fixture for machining high-temperature alloy spherical nuts according to claim 1, characterized in that, The limiting structure includes a placement seat, a rotating shaft, a turntable, an external thread, and a gear. The placement seat is installed above the base. The rotating shaft passes through the base and is rotatably connected to the base. The turntable is installed at one end of the top of the rotating shaft. The external thread is formed on the outer wall of the turntable and is threadedly connected to the internal thread. The gear is installed at one end of the bottom of the rotating shaft.

3. The special fixture for machining high-temperature alloy spherical nuts according to claim 2, characterized in that, The drive structure includes a pusher and a gear plate. The pusher is mounted on the mounting plate, and the gear plate is mounted on the output end of the pusher and meshes with the gear.

4. The special fixture for machining high-temperature alloy spherical nuts according to claim 3, characterized in that, The driving structure also includes a limiting rod, one end of which is mounted on the mounting plate symmetrical to the pushing device. A sliding groove is also provided in the toothed plate, and the other end of the limiting rod is slidably mounted in the sliding groove.

5. The special fixture for machining high-temperature alloy spherical nuts according to claim 2, characterized in that, The special fixture for machining high-temperature alloy spherical nuts also includes a clamping structure, which is mounted on the base and located within the placement seat. The clamping structure is used to limit the position of the nut body.

6. The special fixture for machining high-temperature alloy spherical nuts according to claim 5, characterized in that, The clamping structure includes a buffer seat and a frustum, the buffer seat being installed inside the placement seat and the frustum being installed above the buffer seat.

7. The special fixture for machining high-temperature alloy spherical nuts according to claim 6, characterized in that, The top diameter of the frustum is smaller than the diameter of the internal thread, and the bottom diameter of the frustum is larger than the diameter of the internal thread.

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