Aluminum profile locomotive ceiling welding tool assembly
By designing a tooling assembly for welding roof of aluminum profile lobby, the assembly uses multiple fixtures and guides to achieve continuous movement of the welding trolley, the shortcomings of existing tooling in welding deformation control and continuity are solved, and high-quality welding effects and low-cost design are achieved.
Patent Information
- Application Number
- CN202421341933.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-13
- Publication Date
- 2025-04-22
- Estimated Expiration
- 2034-06-13
AI Technical Summary
The existing tooling and process methods have problems in the welding process of aluminum profile locomotive roofs where the pressure mode does not work to weld deformation, the tooling layout and the fixing method of welding trolley tracks are unreasonable, which affects the continuity and stability of automatic welding, and the center of the welding gun is prone to deviate from the weld bead.
An aluminum profile lobby welding tool assembly is designed, including a number of fixtures distributed at equal intervals along the length of the base. The fixture is composed of a lower plate and an upper plate. The upper plate is rotatably connected to the base through a rotating shaft. The connecting rod and the L-shaped handle are used to achieve clamping and opening of the fixture. The guide rail is pressed on the surface of the workpiece. The welding trolley moves along the guide rail. The fixture is automatically opened and clamped to achieve continuous welding.
The tooling assembly can effectively control welding deformation, improve welding quality and continuity, reduce design costs, and is suitable for promotion and application due to its simple process and low manufacturing costs.
Smart Images
Figure CN222779042U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a tool fixture, in particular to an aluminum profile locomotive roof welding tool assembly. Background Art
[0002] The body structure of locomotives is constantly developing towards lightweight and overall load-bearing. In order to meet this trend, aluminum profile bodies have been widely used in the industry. Its structural characteristics are that several specific aluminum alloy profiles are spliced together to form large body parts such as side walls and roofs with specific shapes in the width direction, and then processed, welded, and combined to form the body.
[0003] When welding aluminum profile locomotive roofs, the current welding technology is stir friction welding, which has the advantages of stable weld quality and small workpiece deformation. It is an ideal technical method for aluminum profile welding, but it also has certain problems. For example, its equipment and tooling investment is huge.
[0004] In addition, when the edges of customized profiles cannot form a weld that meets the requirements of the friction stir welding process, if the cross-section of the profile is forcibly changed, a series of related directional investments will be even greater.
[0005] In order to solve the above problems, customized aluminum profiles are now generally used. However, the butt weld of this customized aluminum profile is a V-shaped weld, which cannot be welded by stir friction welding, and can only be welded by gas shielded welding. In the process of gas shielded welding, the existing tooling and process methods have the following problems: the tooling pressure mode is not effective in restraining welding deformation; the tooling layout and the fixing method of the welding trolley track are unreasonable, which affects the continuity and stability of automatic welding, and even causes the center of the welding gun to deviate from the weld during long-distance automatic welding.
[0006] Therefore, a method or device capable of solving the above problems is now needed. Summary of the invention
[0007] The utility model aims to solve the above-mentioned deficiencies in the prior art and proposes an aluminum profile locomotive roof welding tooling assembly which has a simple structure, ingenious design, reasonable layout, reliable and accurate positioning, and can ensure smooth welding operations.
[0008] The technical solution of the utility model is: an aluminum profile locomotive roof welding tool assembly, characterized in that: the welding tool assembly includes a first assembly and a second assembly,
[0009] The first component includes a base 1, on which a plurality of clamps 2 are arranged at equal intervals along the length direction thereof, the clamps 2 include a lower mold plate 3 and an upper mold plate 4 that match each other, the lower mold plate 3 is fixedly connected to the base 1, one end of the upper mold plate 4 is rotatably connected to the base 1 through a rotating shaft 5, a connecting rod 6 is rotatably connected to the middle of the upper mold plate 4, the other end of the connecting rod 6 is hinged to the end of a short rod 8 on an L-shaped handle 7, and the L-shaped handle 7 is rotatably supported on the base 1, a fixing hook 14 is arranged at the free end of the upper mold plate 4, and a locking buckle 9 matching the fixing hook 14 is arranged on the base 1,
[0010] A limiting groove 10 is provided on the bottom end surface of the upper mold plate 4, and two sides of the limiting groove 10 are positioning inclined surfaces 11.
[0011] In the clamped state, the lower mold plates 3 and the upper mold plates 4 of all the clamps 2 clamp the locomotive roof 12 together. A guide rail 13 is placed on the upper surface of the locomotive roof 12. The end surface of the guide rail 13 matches the end surface of the limiting groove 10. That is, all the clamps 2 press the guide rail 13 against the upper surface of the locomotive roof 12.
[0012] The cross section of the locomotive roof 12 is a curved surface.
[0013] The structure of the second component is the same as that of the first component, but the lower mold plate 3 in the second component and the lower mold plate 3 in the first component have arc surfaces facing in opposite directions.
[0014] Compared with the prior art, the utility model has the following advantages:
[0015] The aluminum profile locomotive roof welding fixture assembly of this structural form has a simple structure, ingenious design and reasonable layout. It designs a special structure to solve the problems of the fixtures used in the traditional locomotive roof welding process. It uses multiple fixtures on it to fix the locomotive roof in sections on the base. When welding, these fixtures also press a guide rail distributed along the length of the roof on the surface of the workpiece. The guide rail can be slidably connected to the welding trolley. When the welding trolley moves along the guide rail, only the fixture that hinders the movement of the trolley is opened each time. After the trolley leaves, the fixture is clamped again. In this way, the welding trolley can be used to achieve continuous welding operation of the roof. Compared with the existing conventional fixtures, the design cost is greatly reduced, and at the same time, a better control of welding deformation effect and stable welding quality can be obtained. In addition, the manufacturing process of this fixture assembly is simple and the manufacturing cost is low. Therefore, it can be said that it has many advantages and is particularly suitable for promotion and application in this field. Its market prospects are very broad. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 It is a three-dimensional structural schematic diagram of an embodiment of the utility model.
[0017] Figure 2 It is a cross-sectional view of the first component in the embodiment of the utility model.
[0018] Figure 3 It is a cross-sectional view of the second component in the embodiment of the utility model.
[0019] Figure 4 yes Figure 3 Enlarged view of part A in . DETAILED DESCRIPTION
[0020] The specific implementation of the present utility model will be described below in conjunction with the accompanying drawings. Figures 1 to 4 As shown: an aluminum profile locomotive roof welding tool assembly, the assembly includes a first assembly and a second assembly,
[0021] The first component includes a base 1, on which a plurality of clamps 2 are arranged at equal intervals along the length direction thereof, the clamps 2 include a lower mold plate 3 and an upper mold plate 4 that match each other, the lower mold plate 3 is fixedly connected to the base 1, one end of the upper mold plate 4 is rotatably connected to the base 1 through a rotating shaft 5, a connecting rod 6 is rotatably connected to the middle of the upper mold plate 4, the other end of the connecting rod 6 is hinged to the end of a short rod 8 on an L-shaped handle 7, and the L-shaped handle 7 is rotatably supported on the base 1, a fixing hook 14 is arranged at the free end of the upper mold plate 4, and a locking buckle 9 matching the fixing hook 14 is arranged on the base 1,
[0022] A limiting groove 10 is provided on the bottom end surface of the upper mold plate 4, and two sides of the limiting groove 10 are positioning inclined surfaces 11.
[0023] In the clamped state, the lower mold plates 3 and the upper mold plates 4 of all the clamps 2 clamp the locomotive roof 12 together. A guide rail 13 is placed on the upper surface of the locomotive roof 12. The end surface of the guide rail 13 matches the end surface of the limiting groove 10. That is, all the clamps 2 press the guide rail 13 against the upper surface of the locomotive roof 12.
[0024] The cross section of the locomotive roof 12 is a curved surface.
[0025] The structure of the second component is the same as that of the first component, but the lower mold plate 3 in the second component and the lower mold plate 3 in the first component have arc surfaces facing in opposite directions.
[0026] The working process of the aluminum profile locomotive roof welding tooling assembly of the embodiment of the utility model is as follows: when the locomotive roof 12 needs to be welded, the locomotive roof 12 is first placed on the first assembly with the arc opening facing downward, specifically on the multiple lower mold plates 3 in the first assembly, and then the guide rails 13 distributed along the length direction of the locomotive roof 12 are placed on the upper surface of the locomotive roof 12, and all the clamps 2 are closed and locked. At this time, the locomotive roof 12 and the guide rails 13 are clamped and fixed by the lower mold plate 3 and the upper mold plate 4;
[0027] A welding trolley is installed on the guide rail 13, and the front joint seam of the locomotive roof 12 is welded by the welding trolley. When the welding trolley moves to a certain clamp 2, the clamp 2 is opened, that is, the upper mold plate 4 on the clamp 2 is opened. At this time, there is no obstacle in front of the welding trolley, and the welding trolley can move along the guide rail 13. At the same time, the locomotive roof 12 and other parts of the guide rail 13 are clamped by multiple clamps 2, so there is no relative movement between the locomotive roofs 12 and 13, so normal welding operation can be achieved;
[0028] When the welding carriage moves to the rear of the first clamp 2, the first clamp 2 is restored to the clamping state, and the second clamp 2 is opened, and the operation is repeated until the welding carriage moves from one end of the locomotive roof 12 to the other end. During the movement, the welding robot on the welding carriage performs automated welding operations on the locomotive roof 12.
[0029] After the front welding operation is completed, all the clamps 2 are opened, the locomotive roof 12 is turned upside down and moved to the second component, and it is clamped and fixed to the guide rail 13 using multiple clamps 2 in the second component. The above operation is repeated until the welding operation on the back of the locomotive roof 12 is completed.
[0030] The working process of the clamp 2 is as follows: after opening the locking buckle 9, pull the L-shaped handle 7 to drive the connecting rod 6 to move, and the connecting rod 6 will pull the upper plate 4 to swing around the rotating shaft 5, and the upper plate 4 will open; push the L-shaped handle 7 in the opposite direction, and the connecting rod 6 will push the upper plate 4 to swing in the opposite direction, and the upper plate 4 will be fastened to the upper surface of the locomotive roof 12 and the guide rail 13, and then lock the locking buckle 9 on the fixing hook 14;
[0031] When the upper mold plate 4 is buckled onto the locomotive roof 12 , the limiting groove 10 provided on its bottom end surface can just accommodate the guide rail 13 . This structure can ensure that the other parts of the upper mold plate 4 can be pressed tightly against the upper surface of the locomotive roof 12 .
Claims
1. An aluminum profile locomotive roof welding tooling assembly, characterized in that: The welding tool assembly comprises a first assembly and a second assembly, The first component comprises a base (1), on which a plurality of clamps (2) are arranged at equal intervals along the length direction thereof, the clamps (2) comprising a lower mold plate (3) and an upper mold plate (4) matching each other, the lower mold plate (3) being fixedly connected to the base (1), one end of the upper mold plate (4) being rotatably connected to the base (1) via a rotating shaft (5), a connecting rod (6) being rotatably connected to the middle part of the upper mold plate (4), the other end of the connecting rod (6) being hinged to the end of a short rod (8) on an L-shaped handle (7), and the L-shaped handle (7) being rotatably supported on the base (1), a fixing hook (14) being arranged at the free end of the upper mold plate (4), and a locking buckle (9) matching the fixing hook (14) being arranged on the base (1), A limiting groove (10) is provided on the bottom end surface of the upper mold plate (4), and two sides of the limiting groove (10) are positioning inclined surfaces (11). In the clamped state, the lower mold plates (3) and the upper mold plates (4) of all the clamps (2) clamp the locomotive roof (12) together, and a guide rail (13) is placed on the upper surface of the locomotive roof (12). The end surface of the guide rail (13) matches the end surface of the limiting groove (10), that is, all the clamps (2) press the guide rail (13) against the upper surface of the locomotive roof (12). The cross section of the locomotive roof (12) is a curved surface. The structure of the second component is the same as that of the first component, but the lower mold plate (3) in the second component and the lower mold plate (3) in the first component have arc surfaces facing in opposite directions.