Full-welding deformation-preventing tool for frame tilting oil cylinder support plate

Abstract

This utility model discloses a tooling for preventing deformation of a vehicle frame tilting cylinder support plate by full welding, including a bracket weld, a first support plate, and a second support plate. The bracket weld has the first and second support plates symmetrically welded to its top. Both the first and second support plates have through holes. A bolt passes through the through hole on the first support plate, and a nut is screwed onto the bolt through the through hole on the second support plate. A limiting ring is fitted onto the section of the bolt between the first and second support plates, with both ends of the limiting ring respectively abutting the first and second support plates. This utility model ensures concentricity of the two support plates by locking with bolts and nuts, and by embedding a stepped portion into the through hole on the support plate. The limiting ring maintains the distance between the two support plates. Simultaneously, the threaded locking method is stable and easy to disassemble, reducing spot welding and grinding steps and improving efficiency.

Description

Technical Field

[0001] This utility model relates to the field of welding technology, and in particular to a tooling for fully welding a support plate for a tilting cylinder of a vehicle frame to prevent deformation. Background Technology

[0002] The process of welding components for the vehicle frame involves first positioning and spot welding the parts using a frame welding fixture, then performing full welding by a welding robot, and finally, manual welding on a tilting platform to the areas the robot cannot reach. Because the distance between the two support plates is small, the welding robot cannot weld them, and the high temperature during full welding causes significant deformation of the two support plates, resulting in misalignment of the holes in the assembly pin ∅5, which makes assembly of the tilting cylinder difficult. The existing process for full welding of the two support plates involves spot welding an anti-deformation block onto the support plates to simultaneously fix them and reduce deformation. However, this requires removing the anti-deformation block and grinding the spot weld area smooth, making the process complex and somewhat dangerous. Furthermore, the concentricity of the two support plates is inconsistent after full welding, making it unsuitable for mass production. Utility Model Content

[0003] To address the problems of the existing full welding process for the tilting cylinder support plate of the vehicle frame being complex and somewhat dangerous, and the poor concentricity consistency of the two support plates after full welding, making it unsuitable for mass production, this utility model provides a tooling for full welding of the tilting cylinder support plate of the vehicle frame to prevent deformation.

[0004] To achieve the above objectives, this utility model provides the following technical solution: A tooling for preventing deformation of a vehicle frame tilting cylinder support plate by full welding includes a bracket welding assembly, a first support plate, and a second support plate. The bracket welding assembly has a first support plate and a second support plate symmetrically welded to its top. Both the first and second support plates are provided with through holes. A bolt is inserted through the through hole on the first support plate, and a nut is screwed into the through hole on the second support plate through the bolt. A limiting ring is sleeved on the section of the bolt located between the first and second support plates, and the two ends of the limiting ring are respectively attached to the first and second support plates.

[0005] Preferably, the end of the bolt away from the nut is provided with a first stepped portion, and the end of the nut near the bolt is also provided with a second stepped portion, and the first stepped portion and the second stepped portion are respectively embedded in the through holes on the first support plate and the second support plate.

[0006] Preferably, the outer diameter of the first and second stepped portions is the same as the inner diameter of the through hole.

[0007] Compared with the prior art, the beneficial effects of this utility model are as follows: This utility model can ensure that the two support plates are concentric by locking with bolts and nuts and by setting a stepped part to be embedded in the through hole of the support plate, and the limiting ring can ensure the distance between the two support plates; at the same time, the threaded locking method is stable and easy to disassemble, reducing the spot welding and grinding steps and improving efficiency. Attached Figure Description

[0008] Figure 1 This is a three-dimensional structural diagram of an embodiment of the present utility model; Figure 2 This is a schematic diagram of the main structure of an embodiment of the present utility model; Figure 3 This is a schematic diagram of the left-side structure of an embodiment of the present utility model; Figure 4 for Figure 2 A schematic diagram of the cross-sectional structure of AA.

[0009] In the figure: 1. Bracket welding, 2. First support plate, 3. Second support plate, 4. Bolt, 401. First step, 5. Nut, 501. Second step, 6. Limiting ring, 7. Through hole. Detailed Implementation

[0010] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", "vertical", "horizontal", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0011] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0012] like Figures 1 to 4As shown, this embodiment of the utility model includes a bracket weld 1, a first support plate 2, and a second support plate 3. The bracket weld 1 has the first support plate 2 and the second support plate 3 symmetrically welded to its top. Both the first support plate 2 and the second support plate 3 have through holes 7. A bolt 4 passes through the through hole 7 on the first support plate 2, and a nut 5 is screwed onto the bolt 4 through the through hole 7 on the second support plate 3. A limiting ring 6 is fitted onto the section of the bolt 4 located between the first support plate 2 and the second support plate 3, with both ends of the limiting ring 6 respectively abutting the first support plate 2 and the second support plate 3. A first step portion 401 is provided at the end of the bolt 4 away from the nut 5, and a second step portion 501 is also provided at the end of the nut 5 near the bolt 4. The outer diameters of the first step portion 401 and the second step portion 501 are the same as the inner diameter of the through hole 7, and the first step portion 401 and the second step portion 501 are respectively embedded in the through holes 7 on the first support plate 2 and the second support plate 3.

[0013] When the first support plate 2 and the second support plate 3 need to be welded to the bracket welding 1, firstly, the bolt 4 is inserted into the through hole 7 on the first support plate 2, and the first step portion 401 is embedded in the through hole 7. Then, the second step portion 501 on the nut 5 is embedded in the through hole 7 on the second support plate 3. Next, the limiting ring 6 is put on the bolt 4. Then, the bolt 4 and the nut 5 are screwed together and locked. This ensures that the first support plate 2 and the second support plate 3 are concentric, and the limiting ring 6 ensures the distance between the first support plate 2 and the second support plate 3.

[0014] 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 tooling for fully welding a support plate for a tilting cylinder of a vehicle frame to prevent deformation, characterized in that: The system includes a bracket weld, a first support plate, and a second support plate. The bracket weld has the first and second support plates symmetrically welded to its top. Both the first and second support plates have through holes. A bolt is installed through the through hole on the first support plate, and a nut is screwed into the through hole on the second support plate. A limiting ring is fitted onto the section of the bolt located between the first and second support plates, and the two ends of the limiting ring are respectively attached to the first and second support plates.

2. The tooling for fully welding and preventing deformation of the chassis tilting cylinder support plate according to claim 1, characterized in that: The bolt has a first stepped portion at the end away from the nut, and the nut has a second stepped portion at the end near the bolt. The first stepped portion and the second stepped portion are respectively embedded in the through holes on the first support plate and the second support plate.

3. The tooling for fully welding and preventing deformation of the chassis tilting cylinder support plate according to claim 1, characterized in that: The outer diameter of the first and second stepped portions is the same as the inner diameter of the through hole.

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