A splicing welding tool for an elliptical axle rotating bridge

By designing an internally threaded cone and an elliptical notch, combined with a locking sleeve and a fixed support assembly, the problems of decreased positioning accuracy and complex structure of existing tooling were solved, achieving efficient welding of the elliptical axis rotating bridge and improving the durability and welding quality of the tooling.

CN224406775UActive Publication Date: 2026-06-26ANQING HELI AXLE CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ANQING HELI AXLE CO LTD
Filing Date
2025-07-01
Publication Date
2026-06-26

AI Technical Summary

Technical Problem

The existing elliptical axis rotating bridge tooling suffers from decreased positioning accuracy due to wear of the locating pins, unstable positioning of the V-blocks, and low welding efficiency due to its complex overall structure.

Method used

The design employs an internally threaded cone and an elliptical notch, combined with a locking sleeve assembly, a fixed axis assembly, and a support assembly, to achieve stable positioning and simple clamping of the elliptical axis rotating bridge. By adjusting the internally threaded cone and matching the elliptical notch, positioning accuracy and durability are ensured. The setting of the first and second abutments enables efficient clamping of the side plates and inner partitions.

Benefits of technology

It improves the durability and welding efficiency of the tooling, ensures welding quality and ease of operation, and is suitable for the welding process of elliptical axis rotating bridges.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a kind of for ell axis rotating bridge's splicing welding tool, including bottom support plate, the top surface of bottom support plate is provided with bottom cushion block, the top surface of bottom support plate is provided with fixed shaft subassembly, lock sleeve subassembly and solid support subassembly;Fixed shaft subassembly includes second side brace block, fixed shaft, sleeve head and oval recess;Lock sleeve subassembly includes first side brace block, threaded shaft and internal thread cone and two gaskets;Solid support subassembly includes third side brace block, sliding rod and first stop plate, the tool further includes fourth side brace block, threaded stop shaft and second stop plate.The tool utilizes the setting of internal thread cone, with durability, utilize the setting of oval recess, complete the positioning of ell axis in ell axis rotating bridge, utilize the setting of first stop plate and second stop plate, not only realize the positioning of first side plate, second side plate, also realize the clamping of internal baffle, to conveniently, efficiently complete the splicing welding of ell axis rotating bridge, structure is simple, suitable in the splicing welding process of ell axis rotating bridge and popularization and application.
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Description

Technical Field

[0001] This utility model relates to the field of rotating bridge welding technology, specifically a welding fixture for elliptical rotating bridges. Background Technology

[0002] During the welding and manufacturing process of the elliptical axis rotating bridge, specialized welding fixtures are usually required to position and fix various components, such as the elliptical axis, circular sleeve, first and second side plates, and inner partition, to ensure welding accuracy and structural stability.

[0003] Currently, existing tooling often uses locating pins to position the sleeve. However, locating pins inevitably wear down during repeated use, leading to a decrease in positioning accuracy and affecting the tooling's service life. At the same time, existing tooling often uses simple V-blocks to position the elliptical axis, which makes it difficult to securely constrain the elliptical axis during welding to prevent it from rotating or shifting, thus affecting welding quality. Finally, existing tooling often uses multiple independent clamps to position and clamp the first and second side plates and the inner partition plate separately. However, this positioning and clamping method is structurally complex, cumbersome to operate, and therefore inefficient.

[0004] To address this, a welding fixture for elliptical axis rotating bridges is proposed. Utility Model Content

[0005] The purpose of this utility model is to provide a welding fixture for an elliptical axis rotating bridge, so as to solve the problems mentioned in the background art, such as the decrease in positioning accuracy due to the wear of the positioning pin, which reduces the durability of the fixture, the unstable positioning due to the positioning of the elliptical axis by the V-block, and the reduced welding efficiency due to the complex overall structure.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a welding fixture for elliptical axis rotating bridges, used for welding elliptical axis rotating bridges, including a base plate, a base pad block provided in the middle of the top surface of the base plate, fixed axis assemblies provided at both the front and rear ends of the top surface of the base plate, locking sleeve assemblies provided at both the left and right ends of the top surface of the base plate, and a fixed support assembly provided at one of the fixed axis assemblies on the top surface of the base plate;

[0007] The fixed axis assembly includes a second side support block, a fixed axis, and a sleeve, wherein an elliptical notch is provided at the side end of the sleeve;

[0008] The locking sleeve assembly includes a first side support block, a threaded shaft, an internal threaded cone, and two washers. The side of the first side support block has a side recess. The threaded shaft is threadedly connected to the first side support block. There are two internal threaded cones, both of which are threadedly connected to the threaded shaft. The two washers are located on the top of the first side support block and inside the side recess, respectively.

[0009] The fixed support assembly includes a third side support block, a sliding rod, and a first abutment plate. The sliding rod is slidably connected to the third side support block in a lockable manner. The first abutment plate is disposed at the end of the sliding rod. The fixed support assembly is provided in two sets and symmetrically arranged on both sides of a fixed axis assembly. On both sides of the other fixed axis assembly, there is a fourth side support block, a threaded abutment shaft, and a second abutment plate. The threaded abutment shaft is threadedly connected to the fourth side support block, and the second abutment plate is disposed at the end of the threaded abutment shaft.

[0010] Preferably, the fixed shaft is fixedly connected to the top of the second side support block, the fixed shaft is horizontally positioned, and the sleeve is positioned at one end of the fixed shaft extending towards the middle of the bottom support plate.

[0011] Preferably, a gasket is fixedly connected to the inner bottom surface of the side recess, and a gasket is also fixedly connected to the top surface of the first side support block.

[0012] Preferably, the threaded shaft passes through a gasket located on the top surface of the first side support block, and the top surface of the gasket located in the side recess is flush with the top surface of the bottom pad block.

[0013] Preferably, the sliding rod can be locked to the top of the third side support block by a flat-head screw. The flat-head screw is threaded to the third side support block and passes through the top of the third side support block to abut against the sliding rod to lock the position of the sliding rod.

[0014] Preferably, both the sliding rod and the threaded abutment are horizontally arranged.

[0015] Preferably, the elliptical axis rotating bridge includes a top plate, a bottom plate, a circular sleeve, a first side plate, a second side plate, an elliptical axis, and an inner partition.

[0016] Preferably, the elliptical notch has the same shape as the elliptical axis to position the elliptical axis, the fixed support assembly, the fourth side support block, the threaded abutment shaft and the second abutment plate are used together to position the inner partition plate, the fixed support assembly is also used to position the second side plate, and the fourth side support block, the threaded abutment shaft and the second abutment plate are used together to position the first side plate.

[0017] Preferably, the inner partition is located between the top plate and the bottom plate, the top plate, the bottom plate and the inner partition are located between the second side plate and the first side plate, and there are two elliptical axes, which are respectively located on the outer side of the first side plate and the outer side of the second side plate.

[0018] Preferably, the second abutment is circular, and a screw block is sleeved on the end of the threaded abutment shaft away from the second abutment.

[0019] Compared with the prior art, the beneficial effects of this utility model are as follows: This welding fixture utilizes the setting of an internal threaded cone, so that even if the internal threaded cone wears down during repeated use, it can still be used to stably position the sleeve by adjusting the distance it extends into the sleeve, thus providing durability. It utilizes the setting of an elliptical notch to complete the positioning of the elliptical axis in the elliptical axis rotating bridge. It utilizes the setting of a first abutment plate and a second abutment plate to not only achieve the positioning of the first side plate and the second side plate, but also to achieve the clamping of the inner partition plate, thereby completing the welding of the elliptical axis rotating bridge conveniently and efficiently. The structure is simple and suitable for widespread application in the welding process of elliptical axis rotating bridges. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the usage state of this utility model;

[0021] Figure 2 This is an overall structural view of the present invention;

[0022] Figure 3 This is a top view of the present invention;

[0023] Figure 4 This is a structural view of the elliptical axis rotation bridge in this utility model;

[0024] Figure 5 This is a top view of the elliptical axis rotating bridge in this utility model.

[0025] In the diagram: 1. Elliptical axis rotating bridge; 11. Top plate; 12. Bottom plate; 13. Circular sleeve; 14. First side plate; 15. Second side plate; 16. Elliptical axis; 17. Inner partition plate; 2. Bottom support plate; 21. Bottom pad block; 3. Locking sleeve assembly; 31. First side support block; 32. Side notch; 33. Washer; 34. Threaded shaft; 35. Internal threaded cone; 4. Fixed axis assembly; 41. Second side support block; 42. Fixed axis; 43. Sleeve head; 44. Elliptical notch; 5. Fixed support assembly; 51. Third side support block; 52. Flat head screw; 53. Sliding rod; 54. First abutment plate; 55. Fourth side support block; 56. Threaded abutment shaft; 57. Second abutment plate. Detailed Implementation

[0026] 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.

[0027] Reference Figure 1-5As shown, this utility model provides a technical solution for a welding fixture for an elliptical axis rotating bridge:

[0028] Reference Figure 1-2 As shown, a welding fixture for elliptical axis rotating bridge is used to weld elliptical axis rotating bridge 1. It includes a base plate 2, a base pad block 21 is provided in the middle of the top surface of the base plate 2, a fixed axis assembly 4 is provided at both the front and rear ends of the top surface of the base plate 2, a locking sleeve assembly 3 is provided at both the left and right ends of the top surface of the base plate 2, and a fixed support assembly 5 is provided at one of the fixed axis assemblies 4 on the top surface of the base plate 2.

[0029] The fixed-axis assembly 4 includes a second side support block 41, a fixed shaft 42, and a sleeve 43. The sleeve 43 has an elliptical notch 44 on its side end. The locking sleeve assembly 3 includes a first side support block 31, a threaded shaft 34, an internal threaded cone 35, and two washers 33. The first side support block 31 has a side notch 32 on its side. The threaded shaft 34 is threadedly connected to the first side support block 31. There are two internal threaded cones 35, both of which are threadedly connected to the threaded shaft 34. The two washers 33 are located on the top of the first side support block 31 and inside the side notch 32, respectively. The fixed support assembly 5 includes a third side support block 51, a sliding rod 53, and a first abutment plate 54. The sliding rod 53 is slidably connected to the third side support block 51 in a lockable manner. The first abutment plate 54 is disposed at the end of the sliding rod 53. The fixed support assembly 5 is provided in two sets and symmetrically arranged on both sides of a fixed axis assembly 4. The other fixed axis assembly 4 is provided with a fourth side support block 55, a threaded abutment shaft 56, and a second abutment plate 57 on both sides. The threaded abutment shaft 56 is threadedly connected to the fourth side support block 55, and the second abutment plate 57 is disposed at the end of the threaded abutment shaft 56.

[0030] It should be further explained that the fixed shaft 42 is fixedly connected to the top of the second side support block 41, and the fixed shaft 42 is horizontally positioned. The sleeve 43 is located at one end of the fixed shaft 42 extending towards the middle of the bottom support plate 2. A gasket 33 is fixedly connected to the inner bottom surface of the side recess 32, and a gasket 33 is also fixedly connected to the top surface of the first side support block 31. The threaded shaft 34 passes through the gasket 33 located on the top surface of the first side support block 31, and the top surface of the gasket 33 located in the side recess 32 is flush with the top surface of the bottom support block 21.

[0031] Reference Figure 2 As shown, in an optional embodiment: the sliding rod 53 can be locked to the top of the third side support block 51 by a flat-head screw 52. The flat-head screw 52 is threaded to the third side support block 51 and passes through the top of the third side support block 51 to abut against the sliding rod 53 to lock the position of the sliding rod 53. It should be noted that the specific structure of the flat-head screw 52 is prior art and will not be described in detail here. It should be further noted that both the sliding rod 53 and the threaded abutment 56 are horizontally arranged.

[0032] The application of this welding fixture to the elliptical axis rotating bridge 1 will now be introduced, referring to... Figure 4-5As shown, the elliptical axis rotating bridge 1 includes a top plate 11, a bottom plate 12, a circular sleeve 13, a first side plate 14, a second side plate 15, an elliptical axis 16, and an inner partition 17.

[0033] It should be noted that the elliptical notch 44 has the same shape as the elliptical axis 16 to position the elliptical axis 16. The fixed support assembly 5, the fourth side support block 55, the threaded abutment 56, and the second abutment plate 57 are used together to position the inner partition 17. The fixed support assembly 5 is also used to position the second side plate 15. The fourth side support block 55, the threaded abutment 56, and the second abutment plate 57 are used together to position the first side plate 14. The inner partition 17 is located between the top plate 11 and the bottom plate 12. The top plate 11, the bottom plate 12, and the inner partition 17 are located between the second side plate 15 and the first side plate 14. There are two elliptical axes 16, one on the outer side of the first side plate 14 and the other on the outer side of the second side plate 15. (Refer to...) Figure 2 As shown, in an optional embodiment: the second abutment 57 is circular, and a screw block is sleeved on the end of the threaded abutment shaft 56 away from the second abutment 57. It should be noted that the second abutment 57 is circular because it is in a rotating state when adjusting its position. The circular shape ensures that it can always be positioned in the position of the first side plate 14, while the screw block facilitates the user to rotate the threaded abutment shaft 56.

[0034] The working principle of this welding fixture is explained through its working process: When using this welding fixture to weld the elliptical rotating bridge 1, the four round sleeves 13 are first positioned by the locking sleeve assembly 3. The specific operation is as follows: The internal threaded cone 35 located on the top of the first side support block 31 is unscrewed from the threaded shaft 34. Then, by rotating the threaded shaft 34, the distance between the bottom end of the threaded shaft 34 and the top surface of the gasket 33 located in the side recess 32 is the height of the round sleeve 13. At this time, the round sleeves 13 are respectively placed in the side recess 32 and on the top of the first side support block 31, and are located on the same central axis as the threaded shaft 34. Then, by rotating the threaded shaft 34, the threaded shaft 34 is inserted into the round sleeve 13 located in the side recess 32. Then, the internal threaded cone 35 is rotated so that the side of the internal threaded cone 35 presses against the round sleeve 13 during the process of inserting into the round sleeve 13. By repeating the above two locking sleeve assemblies 3, the positioning of the four round sleeves 13 can be completed.

[0035] After the above operations are completed, push the two elliptical shafts 16 into the two elliptical recesses 44 respectively. It should be noted that the elliptical shafts 16 are not fully inserted into the elliptical recesses 44, so as to weld them to the first side plate 14 or the second side plate 15. By rotating the threaded abutment shaft 56, the second abutment plate 57 abuts against the first side plate 14. At the same time, rotate the flat-head screw 52 so that the sliding rod 53 can slide on the third side support block 51, thereby making the first abutment plate 54 abut against the second side plate 15. Rotate the flat-head screw 52 in the opposite direction to lock the position of the sliding rod 53. The user then places the base plate 12 flat on the base pad block 21, so that the two ends of the base plate 12 are engaged on the arc-shaped sides of the circular sleeves 13 on both sides, so that the circular sleeves 13 can be welded to the base plate 12. Welding is performed on the elliptical axis 16, and the second side plate 15 is welded to the elliptical axis 16. After the above operations are completed, the user places the inner partition 17 on the top surface of the base plate 12. By rotating the threaded abutment 56 and sliding the sliding rod 53, the first abutment 54 and the second abutment 57 clamp the inner partition 17 from the front and back directions, thus welding the inner partition 17 to the base plate 12. After this operation is completed, the user places the top plate 11 on the top surface of the inner partition 17, and the two ends of the top plate 11 are stuck on the arc side surface of the circular sleeve 13 on both sides, thus welding the circular sleeve 13 to the top plate 11. The top plate 11, the second side plate 15, and the first side plate 14 are welded together. After this operation is completed, the welding operation of the entire elliptical axis rotating bridge 1 is completed.

[0036] This welding fixture is used for welding elliptical axis rotating bridges. Through the arrangement and cooperation of the base plate 2, locking sleeve assembly 3, fixed axis assembly 4, and fixed support assembly 5, and utilizing the internal threaded cone 35, the internal threaded cone 35 can still stably position the sleeve 13 in the elliptical axis rotating bridge 1, even if the internal threaded cone 35 wears down after repeated use. It can still be used to adjust the distance it extends into the sleeve 13 to securely position the sleeve 13, thus providing durability. The elliptical notch 44 is used to position the elliptical axis 16 in the elliptical axis rotating bridge 1. The first abutment plate 54 and the second abutment plate 57 are used to not only position the first side plate 14 and the second side plate 15, but also to clamp the inner partition plate 17. This allows for convenient and efficient welding of the elliptical axis rotating bridge 1. The structure is simple and suitable for widespread application in the welding process of elliptical axis rotating bridges.

[0037] 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 welding fixture for elliptical axis rotating bridges, used for welding elliptical axis rotating bridges (1), characterized in that: Includes a base plate (2), a base pad (21) is provided in the middle of the top surface of the base plate (2), a fixed axis assembly (4) is provided at both the front and rear ends of the top surface of the base plate (2), a locking sleeve assembly (3) is provided at both the left and right ends of the top surface of the base plate (2), and a fixed support assembly (5) is provided at one of the fixed axis assemblies (4) on the top surface of the base plate (2); The fixed axis assembly (4) includes a second side support block (41), a fixed axis (42) and a sleeve (43), and the sleeve (43) has an elliptical notch (44) on its side end; The locking sleeve assembly (3) includes a first side support block (31), a threaded shaft (34), an internal threaded cone (35), and two gaskets (33); The fixed support assembly (5) includes a third side support block (51), a sliding rod (53) and a first abutment plate (54). The fixed support assembly (5) is provided in two sets and is symmetrically arranged on both sides of a fixed axis assembly (4). The other fixed axis assembly (4) is provided with a fourth side support block (55), a threaded abutment shaft (56) and a second abutment plate (57) on both sides.

2. The welding fixture for an elliptical axis rotating bridge according to claim 1, characterized in that: The first side support block (31) has a side recess (32) on its side. The threaded shaft (34) is threadedly connected to the first side support block (31). There are two internal threaded cones (35), both of which are threadedly connected to the threaded shaft (34). The two washers (33) are located at the top of the first side support block (31) and inside the side recess (32), respectively. The sliding rod (53) is slidably connected to the third side support block (51) in a lockable manner. The first abutment (54) is located at the end of the sliding rod (53). The threaded abutment shaft (56) is threadedly connected to the fourth side support block (55). The second abutment plate (57) is located at the end of the threaded abutment shaft (56). The fixed shaft (42) is fixedly connected to the top of the second side support block (41). The fixed shaft (42) is horizontally set, and the sleeve (43) is set at one end of the fixed shaft (42) extending toward the middle of the bottom support plate (2).

3. The welding fixture for an elliptical axis rotating bridge according to claim 2, characterized in that: A gasket (33) is fixedly connected to the inner bottom surface of the side recess (32), and a gasket (33) is also fixedly connected to the top surface of the first side support block (31).

4. The welding fixture for an elliptical axis rotating bridge according to claim 3, characterized in that: The threaded shaft (34) passes through the gasket (33) located on the top surface of the first side support block (31), and the top surface of the gasket (33) located in the side recess (32) is flush with the top surface of the bottom pad block (21).

5. The welding fixture for an elliptical axis rotating bridge according to claim 4, characterized in that: The sliding rod (53) can be locked to the top of the third side support block (51) by a flat-head screw (52). The flat-head screw (52) is threaded to the third side support block (51) and passes through the top of the third side support block (51) to abut against the sliding rod (53) to lock the position of the sliding rod (53).

6. The welding fixture for an elliptical axis rotating bridge according to claim 5, characterized in that: Both the sliding rod (53) and the threaded abutment (56) are horizontally arranged.

7. The welding fixture for an elliptical axis rotating bridge according to claim 6, characterized in that: The elliptical axis rotating bridge (1) includes a top plate (11), a bottom plate (12), a circular sleeve (13), a first side plate (14), a second side plate (15), an elliptical axis (16), and an inner partition (17).

8. A welding fixture for an elliptical axis rotating bridge according to claim 7, characterized in that: The elliptical notch (44) has the same shape as the elliptical axis (16) to position the elliptical axis (16). The fixed support assembly (5), the fourth side support block (55), the threaded abutment shaft (56), and the second abutment plate (57) are used together to position the inner partition plate (17). The fixed support assembly (5) is also used to position the second side plate (15). The fourth side support block (55), the threaded abutment shaft (56), and the second abutment plate (57) are used together to position the first side plate (14).

9. A welding fixture for an elliptical axis rotating bridge according to claim 8, characterized in that: The inner partition (17) is located between the top plate (11) and the bottom plate (12). The top plate (11), the bottom plate (12) and the inner partition (17) are located between the second side plate (15) and the first side plate (14). There are two elliptical axes (16), which are respectively located on the outer side of the first side plate (14) and the outer side of the second side plate (15).

10. A welding fixture for an elliptical axis rotating bridge according to claim 9, characterized in that: The second abutment (57) is circular, and a screw block is sleeved on the end of the threaded abutment shaft (56) away from the second abutment (57).