An adjustable automobile axle fixing welding fixture

Abstract

The utility model provides a kind of fine adjustment's automobile axle fixed welding fixture, belong to automobile axle technical field, this fine adjustment's automobile axle fixed welding fixture, including base;Mounting block is set to the upside of base, second motor is provided in base, adaptive clamping and multidirectional fixation are realized, effectively limit the lateral movement of axle, while the effect of multiple point, flexible fixation is carried out to axle, positioning is more stable and reliable, strong adaptability, and provide accurate controllable clamping force, avoid the problem that workpiece is damaged due to clamping force being too large or clamping is not firm due to clamping force being too small, significantly improve clamping precision and consistency, realize the mechanization fine adjustment of welding angle, welding seam position can be adjusted to the best posture most conducive to welding, greatly improve the convenience and work efficiency of welding operation, and ensure the uniformity of workpiece positioning datum in welding process, improve welding quality.

Description

Technical Field

[0001] This utility model belongs to the field of automotive axle technology, specifically relating to an adjustable automotive axle fixing welding fixture. Background Technology

[0002] As a critical load-bearing component, the welding quality of automotive axles directly affects the safety and reliability of vehicles. During the axle welding process, specialized fixtures are required to hold the axle in place, ensuring the accuracy and consistency of the welding position.

[0003] Most existing automotive axle welding fixtures are fixed structures, which have the following significant drawbacks: First, their clamping positions are usually fixed, making it difficult to adapt to axles of different models or with slight dimensional deviations, resulting in poor versatility. Second, during the welding process, when it is necessary to adjust the welding position of the axle, the operator often needs to manually loosen the fixture and reposition the axle, or lift the entire workpiece. This process is not only cumbersome and inefficient, but repositioning can also easily introduce errors, affecting welding accuracy.

[0004] Therefore, there is an urgent need in this field for a welding fixture that can achieve fast and precise clamping, allow for convenient adjustment of the workpiece angle during welding, and can adapt to a certain size range while protecting the workpiece surface. Utility Model Content

[0005] The purpose of this utility model is to provide a finely adjustable automotive axle fixing welding fixture, which aims to solve the problems of the existing technology where the clamping position is usually fixed, making it difficult to adapt to different models of axles or those with slight dimensional deviations, resulting in poor versatility. Secondly, during the welding process, when it is necessary to adjust the welding position of the axle, the operator often needs to manually loosen the fixture and reposition the axle, or lift the entire workpiece. This process is not only cumbersome and inefficient, but also prone to errors during repositioning, affecting the welding accuracy.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] An adjustable automotive axle fixing welding fixture, comprising:

[0008] Base;

[0009] The mounting block is located on the upper side of the base. A second motor is installed inside the base. The output end of the second motor movably passes through the upper end of the mounting block, and a rotating shaft is fixedly connected to the output end of the second motor.

[0010] A rotating disk is fixedly connected to the upper end of a rotating shaft. Multiple support rods are rotatably connected to the upper end of the rotating disk, and a rotating seat is fixedly connected to the upper end of each of the multiple support rods.

[0011] A mounting base, fixedly connected to the lower end of a rotating base, and a first motor fixedly connected to the upper end of the mounting base, the output end of the first motor movably passing through one end of the mounting base and fixedly connected to a rotating rod; and

[0012] A clamping mechanism is provided on the upper side of the rotating disk to clamp the automotive axle being processed and welded.

[0013] As a preferred embodiment of this utility model, the clamping mechanism includes:

[0014] A connecting seat is fixedly connected to the lower end of the mounting base. Both ends of the connecting seat are rotatably connected to clamping arms via a rotating shaft. One end of each clamping arm is fixedly connected to a clamping block.

[0015] A lead screw, the lower end of which movably passes through the lower ends of the mounting base and the connecting base, a nut is threaded onto the circumferential surface of the lead screw, a limit block is fixedly connected to the lower end of the nut, and two connecting plates are rotatably connected to the inner surfaces of the nut and the two clamping arms respectively via a rotating shaft;

[0016] A transmission assembly is disposed within a mounting base to drive the lead screw to rotate.

[0017] As a preferred embodiment of this utility model, the transmission assembly includes:

[0018] Two bevel gears are fixedly connected to the circumferential surfaces of the rotating rod and the lead screw, respectively, and both bevel gears are in a meshing state.

[0019] As a preferred embodiment of this utility model, a fixed platform is fixedly connected to the upper end of the rotating disk, and multiple sets of limiting mechanisms are provided on the inner surface of the fixed platform to achieve the function of clamping and limiting the placed automobile axle.

[0020] As a preferred embodiment of this utility model, each set of limiting mechanisms includes:

[0021] A sliding shell is fixedly connected to the inner wall of one side of the fixed platform. A pressing shell is slidably connected to the inner surface of the sliding shell. A sliding rod is fixedly connected to one end of the pressing shell, and a limit seat is fixedly connected to one end of the sliding rod.

[0022] A support assembly is disposed within the sliding shell to support the sliding extrusion shell.

[0023] As a preferred embodiment of this utility model, each set of support components includes:

[0024] A support base is fixedly connected to the inner surface of the sliding shell. A pressing rod is slidably connected to the inner surface of the support base. One end of the pressing rod is fixedly connected to the inner wall of one side of the pressing shell. A spring is sleeved on the outer surface of the support base.

[0025] As a preferred embodiment of this utility model, a limiting pad is provided on the inner surface of the limiting seat.

[0026] Compared with the prior art, the beneficial effects of this utility model are:

[0027] 1. In this solution, starting the first motor drives the rotating rod and bevel gear to rotate, which in turn drives the lead screw meshing with it to rotate. The lead screw drives the nut to move upward, pushing the two clamping arms inward through the connecting plate, so that the clamping block clamps the axle from above. At the same time, the second motor can be started to drive the rotating shaft and rotating disk to rotate as a whole, thereby rotating the fixed axle to the required welding angle. This achieves adaptive clamping and multi-directional fixation, effectively limiting the lateral movement of the axle. It also provides multi-point, flexible fixation of the axle, making the positioning more stable and reliable, with strong adaptability. It also provides precise and controllable clamping force, avoiding the problem of workpiece damage due to excessive clamping force or insecure clamping due to insufficient clamping force. This significantly improves clamping accuracy and consistency, and realizes mechanized fine-tuning of the welding angle. The weld position can be adjusted to the optimal posture for welding, greatly improving the convenience and efficiency of welding operations, ensuring the uniformity of the workpiece positioning reference during the welding process, and improving welding quality.

[0028] 2. In this solution, the gravity or placement force of the axle is transmitted to the extrusion shell through the limiting seat and the sliding rod, forcing the extrusion shell to slide inward within the sliding shell. The sliding of the extrusion shell drives the extrusion rod to move within the support seat and compress the spring. The reverse elastic force generated by the spring acts on the sliding rod and the limiting seat through the extrusion rod and the extrusion shell, so that the limiting pad can fit tightly and elastically against the different contours of the axle, thereby achieving adaptive clamping and initial fixation of the axle from the side and preventing its horizontal movement. Attached Figure Description

[0029] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0030] Figure 1 This is a perspective view of the present utility model;

[0031] Figure 2 This is a first perspective sectional view of the present invention;

[0032] Figure 3 This utility model Figure 2 Enlarged view of section A in the image;

[0033] Figure 4 This is a second perspective sectional view of the present invention;

[0034] Figure 5 This utility model Figure 4 Enlarged view of section B in the image;

[0035] Figure 6 This is an exploded view of the present invention.

[0036] In the diagram: 1. Base; 2. Mounting block; 3. Rotating disk; 4. Support rod; 5. Rotating seat; 6. Fixed platform; 7. Mounting seat; 8. First motor; 9. Rotating rod; 10. Bevel gear; 11. Connecting seat; 12. Lead screw; 13. Limiting block; 14. Nut; 15. Clamping arm; 16. Connecting plate; 17. Clamping block; 18. Sliding shell; 19. Support seat; 20. Extrusion shell; 21. Extrusion rod; 22. Spring; 23. Sliding rod; 24. Limiting seat; 25. Limiting pad; 26. Second motor; 27. Rotating shaft. Detailed Implementation

[0037] 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.

[0038] Example 1

[0039] Please see Figure 1-6 The present invention provides the following technical solution:

[0040] An adjustable automotive axle fixing welding fixture, comprising:

[0041] Base 1;

[0042] Mounting block 2 is located on the upper side of base 1. A second motor 26 is installed inside base 1. The output end of the second motor 26 movably passes through the upper end of mounting block 2. A rotating shaft 27 is fixedly connected to the output end of the second motor 26.

[0043] Rotating disk 3 is fixedly connected to the upper end of rotating shaft 27. Multiple support rods 4 are rotatably connected to the upper end of rotating disk 3, and rotating seats 5 are fixedly connected to the upper ends of multiple support rods 4.

[0044] Mounting base 7 is fixedly connected to the lower end of rotating base 5. A first motor 8 is fixedly connected to the upper end of mounting base 7. The output end of the first motor 8 movably passes through one end of mounting base 7 and is fixedly connected to a rotating rod 9.

[0045] A clamping mechanism is located on the upper side of the rotating disk 3 to clamp the automotive axle being processed and welded.

[0046] In a specific embodiment of this utility model, the base 1 serves as the basic support structure for the entire welding fixture, providing a stable mounting platform. The mounting block 2 acts as the support structure for the output end of the second motor 26, with the output end of the second motor 26 movably passing through the upper end of the mounting block 2, allowing the rotating shaft 27 to rotate through the mounting block 2. The rotating shaft 27 transmits the rotational power of the second motor 26 to the rotating disk 3, enabling the rotating disk 3 to rotate. Simultaneously, the rotating disk 3 supports and drives the support rod 4 and its structure to rotate. The support rod 4 provides vertical support and transmits the movement of the rotating disk 3 to the rotating seat 5.

[0047] The rotating seat 5 connects the support rod 4 and the mounting seat 7, allowing the mounting seat 7 to be adjusted in multiple directions. At the same time, the mounting seat 7 serves as the mounting base for the first motor 8 and the clamping mechanism, providing stable support. The fixed first motor 8 provides power to drive the rotating rod 9 to rotate, thereby driving the rotating rod 9 to transmit the rotational power of the first motor 8 to the two bevel gears 10.

[0048] The fixed connecting seat 11 serves as the support point for the clamping arm 15, allowing the clamping arm 15 to rotate. The clamping arm 15 drives the clamping block 17 to open and close by rotating, thereby clamping or releasing the vehicle axle. At the same time, the clamping block 17 provides a clamping surface to fix the vehicle axle. A nut 14 is threaded onto the circumferential surface of the lead screw 12. The rotational movement of the lead screw 12 drives the nut 14 to move axially. The nut 14 converts the rotational movement of the lead screw 12 into linear movement, which drives the clamping arm 15 to rotate through the connecting plate 16. The movement range of the nut 14 is limited by the limiting block 13 to prevent excessive movement. At the same time, the connecting plate 16 converts the linear movement of the nut 14 into the rotational movement of the clamping arm 15, thereby controlling the opening and closing of the clamping block 17.

[0049] Two bevel gears 10 are provided, and the two bevel gears 10 mesh with each other, so that the rotational power of the rotating rod 9 is transmitted to the lead screw 12 according to the bevel gears 10, changing the direction of the power and causing the lead screw 12 to rotate.

[0050] The above structure achieves adaptive clamping and multi-directional fixation, effectively limiting the lateral movement of the axle. It also provides multi-point, flexible fixation of the axle, resulting in more stable and reliable positioning, strong adaptability, and precise and controllable clamping force. This avoids damage to the workpiece due to excessive clamping force or insecure clamping due to insufficient force, significantly improving clamping accuracy and consistency. It also enables mechanized fine-tuning of the welding angle, allowing the weld position to be adjusted to the optimal posture for welding, greatly enhancing the convenience and efficiency of welding operations. Furthermore, it ensures the uniformity of the workpiece positioning reference during welding, improving welding quality. It should be noted that the specific model of the first motor 8 and the second motor 26 used is to be selected by those skilled in the art, and the above-mentioned first motor 8 and second motor 26 are all existing technologies, which will not be elaborated upon in this solution.

[0051] Please refer to the details. Figure 1 The upper end of the rotating disk 3 is fixedly connected to a fixed platform 6. The inner surface of the fixed platform 6 is provided with multiple sets of limiting mechanisms to achieve the function of clamping and limiting the placed automobile axle.

[0052] In this embodiment, the fixed platform 6 provides additional support and limiting points for clamping and limiting the placed vehicle axle. At the same time, multiple limiting mechanisms are provided, all of which are set on the inner surface of the fixed platform 6. Their overall function is to clamp and limit the placed vehicle axle.

[0053] Please refer to the details. Figure 5 Each set of limit mechanisms includes:

[0054] The sliding shell 18 is fixedly connected to the inner wall of one side of the fixed platform 6. The inner surface of the sliding shell 18 is slidably connected to the extrusion shell 20. One end of the extrusion shell 20 is fixedly connected to the sliding rod 23, and one end of the sliding rod 23 is fixedly connected to the limit seat 24.

[0055] A support component is provided inside the sliding shell 18 to support the sliding extrusion shell 20.

[0056] In this embodiment: the sliding shell 18 serves as the sliding guide for the extrusion shell 20, allowing the extrusion shell 20 to move in a certain direction. Simultaneously, the extrusion shell 20 slides when subjected to external force, and the motion is transmitted through the sliding rod 23. The sliding rod 23 connects the extrusion shell 20 and the limiting seat 24, transmitting the motion of the extrusion shell 20 to the limiting seat 24. At the same time, the limiting seat 24 directly contacts the vehicle axle, providing clamping through the limiting pad 25. The extrusion rod 21 slides on the inner surface of the support seat 19, thereby providing sliding support for the extrusion rod 21. The extrusion rod 21 transmits the motion of the extrusion shell 20 to the spring 22 and compresses the spring 22, thereby generating a rebound force, enabling the limiting mechanism to adapt to axles of different sizes.

[0057] Please refer to the details. Figure 5 Each set of support components includes:

[0058] Support base 19 is fixedly connected to the inner surface of sliding shell 18. A pressing rod 21 is slidably connected to the inner surface of support base 19. One end of the pressing rod 21 is fixedly connected to the inner wall of one side of pressing shell 20. A spring 22 is sleeved on the outer surface of support base 19.

[0059] In this embodiment: the extrusion rod 21 is slidably provided on the inner surface of the support base 19, thereby providing sliding support for the extrusion rod 21. The extrusion rod 21 transmits the movement of the extrusion shell 20 to the spring 22 and compresses the spring 22, thereby generating a rebound force, so that the limiting mechanism can adapt to axles of different sizes.

[0060] Please refer to the details. Figure 5 A limiting pad 25 is provided on the inner surface of the limiting seat 24.

[0061] In this embodiment, the limiting pad 25 is provided on the inner surface of the limiting seat 24, thereby increasing the friction with the contact surface of the vehicle axle and preventing damage to the axle surface during clamping.

[0062] The working principle and usage process of this utility model are as follows: First, the automobile axle is placed on the fixed platform 6. The axle presses against multiple limiting seats 24, forcing the sliding rod 23 and the extrusion shell 20 to slide within the sliding shell 18 and compress the spring 22. The reaction force of the spring 22 causes the limiting pad 25 to elastically press against the side of the axle, achieving adaptive lateral limiting. Then, the first motor 8 is started, driving the rotating rod 9 and the bevel gear 10 to rotate, which in turn drives the lead screw 12 meshing with it to rotate. The lead screw 12 drives the nut 14 to move upward, pushing the two clamping arms 15 to close inward through the connecting plate 16, so that the clamping block 17 clamps the axle from above. At the same time, the second motor 26 can be started, driving the rotating shaft 27 and the rotating disk 3 to rotate as a whole, thereby driving the fixed axle to rotate to the required welding angle, and the operator can then perform welding.

[0063] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A finely adjustable automotive axle fixing welding fixture, characterized in that, include: Base (1); Mounting block (2), the mounting block (2) is located on the upper side of the base (1), the base (1) is provided with a second motor (26), the output end of the second motor (26) movably passes through the upper end of the mounting block (2), and the output end of the second motor (26) is fixedly connected to a rotating shaft (27); Rotating disk (3), the rotating disk (3) is fixedly connected to the upper end of the rotating shaft (27), and a plurality of support rods (4) are rotatably connected to the upper end of the rotating disk (3), and a rotating seat (5) is fixedly connected to the upper end of the plurality of support rods (4); Mounting base (7), the mounting base (7) is fixedly connected to the lower end of the rotating base (5), the upper end of the mounting base (7) is fixedly connected to a first motor (8), the output end of the first motor (8) movably passes through one end of the mounting base (7) and is fixedly connected to a rotating rod (9); and A clamping mechanism is provided on the upper side of the rotating disk (3) to clamp the automotive axle being processed and welded.

2. The adjustable automotive axle fixing welding fixture according to claim 1, characterized in that: The clamping mechanism includes: Connecting seat (11), the connecting seat (11) is fixedly connected to the lower end of the mounting seat (7), and both ends of the connecting seat (11) are rotatably connected to clamping arms (15) through a rotating shaft, and one end of each clamping arm (15) is fixedly connected to a clamping block (17). A lead screw (12) is provided, the lower end of which movably passes through the lower ends of the mounting base (7) and the connecting base (11). A nut (14) is threaded onto the circumferential surface of the lead screw (12). A limit block (13) is fixedly connected to the lower end of the nut (14). The inner surfaces of the nut (14) and the two clamping arms (15) are rotatably connected to two connecting plates (16) via a rotating shaft. The transmission assembly is disposed in the mounting base (7) to drive the lead screw (12) to rotate.

3. The adjustable automotive axle fixing welding fixture according to claim 2, characterized in that: The transmission assembly includes: Two bevel gears (10) are fixedly connected to the circumferential surfaces of the rotating rod (9) and the lead screw (12), respectively, and the two bevel gears (10) are in a meshing state.

4. The adjustable automotive axle fixing welding fixture according to claim 3, characterized in that: The upper end of the rotating disk (3) is fixedly connected to a fixed platform (6), and the inner surface of the fixed platform (6) is provided with multiple sets of limiting mechanisms to achieve the function of clamping and limiting the placed automobile axle.

5. The adjustable automotive axle fixing welding fixture according to claim 4, characterized in that: Each of the aforementioned limiting mechanisms includes: A sliding shell (18) is fixedly connected to the inner wall of one side of the fixed platform (6). A pressing shell (20) is slidably connected to the inner surface of the sliding shell (18). A sliding rod (23) is fixedly connected to one end of the pressing shell (20). A limit seat (24) is fixedly connected to one end of the sliding rod (23). A support assembly is disposed within the sliding shell (18) to support the sliding extrusion shell (20).

6. The adjustable automotive axle fixing welding fixture according to claim 5, characterized in that: Each set of support components includes: A support base (19) is fixedly connected to the inner surface of the sliding shell (18). A pressing rod (21) is slidably connected to the inner surface of the support base (19). One end of the pressing rod (21) is fixedly connected to the inner wall of one side of the pressing shell (20). A spring (22) is sleeved on the outer surface of the support base (19).

7. The adjustable automotive axle fixing welding fixture according to claim 6, characterized in that: The inner surface of the limiting seat (24) is provided with a limiting pad (25).

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