Engine air intake pipe welding centering tool

Abstract

The utility model discloses an engine intake pipe welding centering frock relates to engine intake pipe production technical field, including mobile seat, one side of mobile seat is provided with motor, the output shaft of motor is connected with two -way screw rod, two -way screw rod's both sides are connected with front sliding block and rear sliding block through screw thread respectively, and front sliding block and rear sliding block can slide in mobile seat, the top of front sliding block is provided with end fixed subassembly, the top of rear sliding block is provided with tail fixed subassembly, tail fixed subassembly includes locating plate, the locating plate is L type structure, the lateral wall of locating plate is seted up with sliding slot, the inner wall of sliding slot is connected with the pressing plate of sliding, the top of sliding slot is provided with mounting plate. The utility model can fix from the both ends of intake pipe, has improved the firmness of intake pipe fixed, has guaranteed the welding quality of intake pipe.

Description

Technical Field

[0001] This utility model relates to the field of engine intake pipe manufacturing technology, and in particular to an engine intake pipe welding alignment tool. Background Technology

[0002] An aircraft engine intake pipe is a pipe that guides the combustion gases required by an aircraft engine into the machine. The intake pipe must ensure sufficient flow area, avoid bends and abrupt changes in cross-section, and improve the surface finish of the pipe to reduce resistance. During the production of the engine intake pipe, two parts need to be butt-welded together, requiring the use of alignment fixtures.

[0003] In the existing technology, the welding alignment tooling for engine intake pipes can generally only clamp and fix them from the end of the intake pipe. Since the intake pipe is irregular in shape, fixing it only from the end can easily cause instability of the intake pipe, affecting the welding quality of the engine intake pipe. Therefore, there is room for improvement. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a welding alignment fixture for engine intake pipes. Its advantages include the ability to fix the intake pipe from both ends, improving the stability of the fixation and ensuring the welding quality of the intake pipe.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A welding centering fixture for an engine intake pipe includes a movable base. An electric motor is provided on one side of the movable base. The output shaft of the electric motor is connected to a double-acting lead screw. A front slider and a rear slider are respectively threaded to both sides of the double-acting lead screw. Both the front slider and the rear slider can slide within the movable base.

[0007] The front slider is provided with an end fixing assembly at its top, and the rear slider is provided with a tail fixing assembly at its top. The tail fixing assembly includes a positioning plate, which has an L-shaped structure. A sliding groove is provided on the side wall of the positioning plate, and a pressure plate is slidably connected to the inner wall of the sliding groove. A mounting plate is provided on the top of the sliding groove, and the mounting plate and the pressure plate are connected by a compression spring. An upper pressure ring is provided at the bottom of the pressure plate, and a lower pressure ring is provided at the top of the positioning plate. The upper and lower pressure rings are aligned.

[0008] The above technical solution involves using an end-fixing assembly to clamp and fix the end of the intake pipe to be welded. After clamping the end of the intake pipe, the position of the intake pipe is adjusted so that the tail of the intake pipe is placed inside the lower pressure ring. Then, the pressure plate is released, and the pressure plate moves downward under the action of the compression spring, causing the upper pressure ring to firmly fix the tail of the intake pipe inside the lower pressure ring. This allows for fixing from both ends of the intake pipe, improving the firmness of the intake pipe fixation and ensuring the welding quality of the intake pipe.

[0009] The present invention is further configured such that the end fixing component includes a fixing ring, a lower pressing block is provided on the bottom inner wall of the fixing ring, a threaded hole is provided on the top of the fixing ring, a threaded rod is threadedly connected to the inner wall of the threaded hole, and an upper pressing block is rotatably connected to the bottom of the threaded rod. Both the upper pressing block and the lower pressing block are semi-circular ring structures.

[0010] The above technical solution involves manually rotating the threaded rod, which causes the upper pressure block to move downwards. As the upper pressure block moves downwards, the end of the intake pipe is firmly squeezed and fixed under the action of the upper and lower pressure blocks, thus improving the stability of the intake pipe.

[0011] The present invention is further provided with a buffer pad on the inner wall of both the upper and lower pressure blocks, and the buffer pad is made of rubber.

[0012] Through the above technical solutions, the setting of the buffer pad can play a good buffering role when fixed, avoiding damage to the air intake pipe caused by excessive extrusion pressure.

[0013] The present invention is further provided that the inner wall of the buffer pad is provided with anti-slip protrusions, and the anti-slip protrusions are integrally formed with the buffer pad.

[0014] The above technical solution involves adding anti-slip protrusions to increase the friction between the upper and lower pressure blocks and the intake pipe, thus preventing the intake pipe from shaking.

[0015] The present invention is further configured such that both sides of the top of the lower pressure block are provided with mating holes, and both sides of the bottom of the upper pressure block are provided with mating rods, the mating rods being adapted to the mating holes.

[0016] Through the above technical solution, when the upper pressure block moves downward, the docking rod can enter the docking hole, which improves the stability of the upper pressure block's movement.

[0017] The present invention is further configured such that the bottom of the connecting rod has an arc-shaped structure.

[0018] The above technical solution, with its arc-shaped bottom structure, makes the bottom of the connecting rod smooth, improving the ease with which the connecting rod can be inserted into the connecting hole.

[0019] The present invention is further provided that a pull ring is provided on the top of the pressure plate, and the pull ring is integrally formed with the pressure plate.

[0020] The above technical solution, with its pull ring, allows for easy movement of the pressure plate by pulling the ring, thus improving operational convenience.

[0021] The beneficial effects of this utility model are as follows:

[0022] 1. This engine intake pipe welding alignment fixture is used by clamping and fixing the end of the intake pipe to be welded using the end fixing component. After clamping the end of the intake pipe, the position of the intake pipe is adjusted so that the tail of the intake pipe is placed inside the lower pressure ring. Then, the pressure plate is released. Under the action of the compression spring, the pressure plate moves downward and drives the upper pressure ring to firmly fix the tail of the intake pipe inside the lower pressure ring. This allows for fixing from both ends of the intake pipe, improving the firmness of the intake pipe fixation and ensuring the welding quality of the intake pipe.

[0023] 2. The engine intake pipe welding alignment fixture allows for manual rotation of the threaded rod. This rotation causes the upper pressure block to move downwards. As the upper and lower pressure blocks move downwards, the end of the intake pipe is firmly pressed and fixed, improving the stability of the intake pipe. The buffer pad provides good cushioning during fixing, preventing damage to the intake pipe due to excessive pressure. The anti-slip protrusions increase the friction between the upper and lower pressure blocks and the intake pipe, preventing the intake pipe from wobbling. Attached Figure Description

[0024] Figure 1 This is a three-dimensional structural schematic diagram of a welding alignment tool for an engine intake pipe proposed in this utility model.

[0025] Figure 2 This is a schematic diagram of the clamping assembly structure of an engine intake pipe welding alignment tool proposed in this utility model;

[0026] Figure 3 for Figure 1 A magnified structural diagram of point A in the middle.

[0027] In the diagram: 1. Moving seat; 2. Motor; 3. Two-way lead screw; 4. Front slider; 5. Rear slider; 6. Positioning plate; 7. Sliding groove; 8. Pressure plate; 9. Mounting plate; 10. Compression spring; 11. Upper pressure ring; 12. Lower pressure ring; 13. Fixing ring; 14. Lower pressure block; 15. Threaded rod; 16. Upper pressure block; 17. Buffer pad; 18. Anti-slip protrusion; 19. Connecting hole; 20. Connecting rod; 21. Pulling ring. Detailed Implementation

[0028] The technical solution of this patent will be further described in detail below with reference to specific embodiments.

[0029] The embodiments of this patent are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this patent, and should not be construed as limiting this patent.

[0030] Reference Figure 1-3 A welding centering fixture for an engine intake pipe includes a movable seat 1. An electric motor 2 is provided on one side of the movable seat 1. The output shaft of the electric motor 2 is connected to a double-acting lead screw 3. A front slider 4 and a rear slider 5 are respectively threaded to both sides of the double-acting lead screw 3. Both the front slider 4 and the rear slider 5 can slide within the movable seat 1.

[0031] The top of the front slider 4 is provided with an end fixing component, and the top of the rear slider 5 is provided with a tail fixing component. The tail fixing component includes a positioning plate 6, which has an L-shaped structure. The side wall of the positioning plate 6 is provided with a sliding groove 7. The inner wall of the sliding groove 7 is slidably connected to a pressure plate 8. The top of the sliding groove 7 is provided with a mounting plate 9. The mounting plate 9 and the pressure plate 8 are connected by a compression spring 10. The bottom of the pressure plate 8 is provided with an upper pressure ring 11, and the top of the positioning plate 6 is provided with a lower pressure ring 12. The upper pressure ring 11 and the lower pressure ring 12 are aligned.

[0032] In this embodiment, the end fixing assembly includes a fixing ring 13. A lower pressure block 14 is provided on the bottom inner wall of the fixing ring 13. A threaded hole is provided on the top of the fixing ring 13. A threaded rod 15 is threadedly connected to the inner wall of the threaded hole. An upper pressure block 16 is rotatably connected to the bottom of the threaded rod 15. Both the upper pressure block 16 and the lower pressure block 14 are semi-circular ring structures. When the threaded rod 15 is rotated by hand, the rotation of the threaded rod 15 drives the upper pressure block 16 to move downward. When the upper pressure block 16 moves downward, under the action of the upper pressure block 16 and the lower pressure block 14, the end of the intake pipe is firmly squeezed and fixed, which improves the firmness of the intake pipe fixing.

[0033] Furthermore, the inner walls of both the upper pressure block 16 and the lower pressure block 14 are provided with buffer pads 17. The buffer pads 17 are made of rubber and can provide a good buffering effect when fixed, preventing excessive pressure from damaging the air intake pipe. The inner walls of the buffer pads 17 are provided with anti-slip protrusions 18, which are integrally formed with the buffer pads 17. The anti-slip protrusions 18 can increase the friction between the upper pressure block 16 and the lower pressure block 14 and the air intake pipe, preventing the air intake pipe from shaking.

[0034] Both sides of the top of the lower pressure block 14 are fitted with mating holes 19, and both sides of the bottom of the upper pressure block 16 are provided with mating rods 20. The mating rods 20 are adapted to the mating holes 19. When the upper pressure block 16 moves downward, the mating rods 20 can enter into the mating holes 19, which improves the stability of the movement of the upper pressure block 16. The bottom of the mating rods 20 has an arc surface structure. The arc surface structure of the bottom of the mating rods 20 makes the bottom of the mating rods 20 smooth, which improves the convenience of the mating rods 20 entering into the mating holes 19.

[0035] It is worth mentioning that a pull ring 21 is provided on the top of the pressure plate 8. The pull ring 21 is integrally formed with the pressure plate 8. The pressure plate 8 can be easily moved by pulling the pull ring 21, which improves the convenience of operation.

[0036] Working principle: When in use, the end of the intake pipe to be welded is clamped and fixed using the end fixing component. After the end of the intake pipe is clamped, the position of the intake pipe is adjusted so that the tail of the intake pipe is placed inside the lower pressure ring 12. Then, the pressure plate 8 is released. Under the action of the compression spring 10, the pressure plate 8 moves downward, driving the upper pressure ring 11 to firmly fix the tail of the intake pipe inside the lower pressure ring 12. This can fix the intake pipe from both ends, improving the firmness of the intake pipe fixation and ensuring the welding quality of the intake pipe.

[0037] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A welding alignment fixture for an engine intake pipe, comprising a movable base (1), wherein a motor (2) is disposed on one side of the movable base (1), and the output shaft of the motor (2) is connected to a bidirectional lead screw (3), characterized in that, The two-way lead screw (3) is connected to a front slider (4) and a rear slider (5) by threads on both sides, and both the front slider (4) and the rear slider (5) can slide within the moving seat (1); The front slider (4) is provided with an end fixing component at its top, and the rear slider (5) is provided with a tail fixing component at its top. The tail fixing component includes a positioning plate (6). The positioning plate (6) has an L-shaped structure. The side wall of the positioning plate (6) is provided with a sliding groove (7). The inner wall of the sliding groove (7) is slidably connected to a pressure plate (8). The top of the sliding groove (7) is provided with an mounting plate (9). The mounting plate (9) and the pressure plate (8) are connected by a compression spring (10). The bottom of the pressure plate (8) is provided with an upper pressure ring (11), and the top of the positioning plate (6) is provided with a lower pressure ring (12). The upper pressure ring (11) and the lower pressure ring (12) are aligned.

2. The engine intake pipe welding alignment tooling according to claim 1, characterized in that, The end fixing assembly includes a fixing ring (13), a lower pressure block (14) is provided on the bottom inner wall of the fixing ring (13), a threaded hole is provided on the top of the fixing ring (13), a threaded rod (15) is threadedly connected to the inner wall of the threaded hole, and an upper pressure block (16) is rotatably connected to the bottom of the threaded rod (15). Both the upper pressure block (16) and the lower pressure block (14) are semi-circular ring structures.

3. The engine intake pipe welding alignment tooling according to claim 2, characterized in that, The inner walls of both the upper pressure block (16) and the lower pressure block (14) are provided with buffer pads (17), which are made of rubber.

4. The engine intake pipe welding alignment tooling according to claim 3, characterized in that, The inner wall of the buffer pad (17) is provided with anti-slip protrusions (18), and the anti-slip protrusions (18) are integrally formed with the buffer pad (17).

5. The engine intake pipe welding alignment tooling according to claim 4, characterized in that, The lower pressure block (14) has docking holes (19) inserted on both sides of its top, and the upper pressure block (16) has docking rods (20) on both sides of its bottom, and the docking rods (20) are adapted to the docking holes (19).

6. The engine intake pipe welding alignment tooling according to claim 5, characterized in that, The bottom of the connecting rod (20) has an arc-shaped structure.

7. A welding alignment tool for an engine intake pipe according to any one of claims 1-6, characterized in that, The top of the pressure plate (8) is provided with a pull ring (21), which is integrally formed with the pressure plate (8).

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