Lifting lug welding tool

Abstract

The utility model relates to the technical field of lifting lug welding, in particular to a lifting lug welding tool which comprises a rotating mechanism, a working table and a limiting assembly, the working table is arranged in the vertical direction and connected with an output shaft of the rotating mechanism, and the rotating mechanism can drive the working table to rotate along the vertical plane; the limiting assembly comprises a fixing base and a clamp, and the fixing base is horizontally arranged on the workbench and used for bearing a to-be-welded workpiece. The clamp is arranged on the workbench and used for pressing the tool to be welded to the fixing base. A to-be-welded workpiece is pressed and limited on the fixing seat arranged on the workbench through the clamp, and the rotating mechanism can drive the workbench to rotate so as to adjust the setting angle of a welding seam of the to-be-welded workpiece on the fixing seat, ensure that the welding seam is in a horizontal position and meet the welding angle requirement of a welding manipulator, so that the welding efficiency can be effectively improved, and the welding quality is ensured. And the stability of the welding quality is ensured.

Description

Technical Field

[0001] This utility model relates to the field of lifting lug welding technology, and in particular to a lifting lug welding fixture. Background Technology

[0002] With the rapid development of rail transit, customers have higher requirements for converter cabinet welding, demanding higher quality, faster efficiency, and lower costs. As a key component, the welding process of the lifting lugs is particularly critical. It not only affects welding efficiency but also the overall installation strength and durability of the customer's cabinet. Currently, the welding of converter cabinet lifting lug components requires adjustments to the welding angle due to varying weld seam settings, resulting in low welding efficiency and inconsistent welding quality.

[0003] Therefore, it is necessary to provide a new welding fixture for lifting lugs to solve the above-mentioned technical problems. Utility Model Content

[0004] The main purpose of this utility model is to provide a welding fixture for lifting lugs, which aims to solve the problems of low welding efficiency and unstable welding quality of existing welding devices.

[0005] To achieve the above objectives, this utility model proposes a welding fixture for lifting lugs, comprising a rotating mechanism, a worktable, and a limiting assembly. The worktable is arranged vertically and connected to the output shaft of the rotating mechanism, which can drive the worktable to rotate along a vertical plane. The limiting assembly includes a fixed seat and a clamp. The fixed seat is horizontally arranged on the worktable to support the workpiece to be welded. The clamp is arranged on the worktable to press the workpiece to be welded onto the fixed seat.

[0006] Optionally, the fixture includes a mounting base, a linkage structure, an operating handle, and a clamping arm. The mounting base is disposed on the fixed base. The linkage structure is rotatably disposed on the mounting base, and one end of the linkage structure is connected to the operating handle, and the other end is connected to the clamping arm. The operating handle can drive the clamping arm to move closer to or away from the workpiece to be welded through the linkage structure.

[0007] Optionally, the limiting component further includes a limiting plate, which is disposed on the worktable and has a limiting groove that matches the shape of the workpiece to be welded; the mounting base is disposed adjacent to the limiting plate, and the end of the clamping arm away from the connecting rod structure is disposed opposite the limiting groove.

[0008] Optionally, the number of limiting components is one or more, and the multiple limiting components are evenly distributed on the fixed base.

[0009] Optionally, the fixing base includes two detachably arranged first support blocks and two second support blocks, the two first support blocks being arranged horizontally at intervals on the worktable; the two second support blocks being arranged vertically at intervals on the worktable; and the distance between the two first support blocks is different from the distance between the two second support blocks; the number of clamps is at least two, the worktable is provided with mounting holes, and the clamps are detachably connected to the worktable through the mounting holes.

[0010] Optionally, the structure of the first support block is the same as that of the second support block; the first support block includes a vertically connected mounting plate and a support plate, the mounting plate is set vertically on the workbench by fasteners, and the support plate is used to support the workpiece to be welded.

[0011] Optionally, the welding fixture for the lifting lugs further includes a positioning pin; the support plates of the first support block and the second support block are each provided with a first positioning hole, and the two ends of the workpiece to be welded are respectively provided with a second positioning hole corresponding to the first positioning hole; the positioning pin passes through the second positioning hole and the first positioning hole in sequence to position the workpiece to be welded.

[0012] Optionally, the mounting base is detachably connected to the worktable.

[0013] In this utility model, the workpiece to be welded is clamped and limited on a fixed seat set on the worktable by a clamp, and the rotating mechanism can drive the worktable to rotate to adjust the weld seam setting angle of the workpiece to be welded on the fixed seat, so as to ensure that the weld seam is in a horizontal position and meets the welding angle requirements of the welding robot. This can effectively improve welding efficiency and ensure the stability of welding quality. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the lifting lug welding fixture in Embodiment 1 of this utility model;

[0016] Figure 2 This is a partial enlarged view of the limiting component pressing the workpiece to be welded in Embodiment 1 of this utility model;

[0017] Figure 3 This is a schematic diagram of the lifting lug welding fixture in Embodiment 2 of this utility model;

[0018] Figure 4 This is a partial enlarged view of the limiting component pressing the workpiece to be welded in Embodiment 2 of this utility model.

[0019] Explanation of icon numbers:

[0020] 1. Rotating mechanism; 2. Worktable; 2.1. Mounting hole; 3. Limiting assembly; 3.1. Fixed seat; 3.1.1. First support block; 3.1.2. Second support block; 3.1.3. First positioning hole; 3.2. Fixture; 3.2.1. Mounting seat; 3.2.2. Linkage structure; 3.2.3. Operating handle; 3.2.4. Pressing arm; 3.3. Limiting plate; 3.3.1. Limiting groove; 4. Positioning pin; 5. Workpiece to be welded; 5.1. Workpiece body; 5.2. Lifting lug.

[0021] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0022] The embodiments of the present invention will be described in detail below with reference to the accompanying drawings. However, the present invention can be implemented in many different ways as defined and covered by the claims.

[0023] This utility model proposes a welding fixture for lifting lugs, which aims to solve the problems of low welding efficiency and unstable welding quality of existing welding devices.

[0024] Example 1

[0025] A welding fixture for lifting lugs includes a rotating mechanism 1, a worktable 2, and a limiting component 3. The worktable 2 is arranged vertically and connected to the output shaft of the rotating mechanism 1. The rotating mechanism 1 can drive the worktable 2 to rotate along a vertical plane. The limiting component 3 includes a fixed seat 3.1 and a clamp 3.2. The fixed seat 3.1 is horizontally arranged on the worktable 2 to support the workpiece 5 to be welded. The clamp 3.2 is arranged on the worktable 2 to press the workpiece 5 to be welded onto the fixed seat 3.1. In actual operation, the workpiece 5 to be welded is pressed and limited onto the fixed seat 3.1 on the worktable 2 by the clamp 3.2. The rotating mechanism 1 can drive the worktable 2 to rotate to adjust the weld angle of the workpiece 5 to be welded on the fixed seat 3.1, ensuring that the weld is in a horizontal position and meeting the welding angle requirements of the welding robot. This effectively improves welding efficiency and ensures the stability of welding quality.

[0026] In this embodiment, the workpiece 5 to be welded includes a workpiece body 5.1 and a lifting lug 5.2. There are welds with different angles between the lifting lug 5.2 and the workpiece body 5.1. The rotating mechanism 1 can drive the worktable 2 to rotate so as to ensure that the weld is always in a horizontal state when the external welding equipment is welding.

[0027] The fixture 3.2 includes a mounting base 3.2.1, a connecting rod structure 3.2.2, an operating handle 3.2.3, and a clamping arm 3.2.4. The mounting base 3.2.1 is mounted on the fixed base 3.1. The connecting rod structure 3.2.2 is rotatably mounted on the mounting base 3.2.1, with one end connected to the operating handle 3.2.3 and the other end connected to the clamping arm 3.2.4. The operating handle 3.2.3 can move the clamping arm 3.2.4 closer to or away from the workpiece 5 to be welded via the connecting rod structure 3.2.2. The operator uses the operating handle 3.2.3 to move the clamping arm 3.2.4 closer to or away from the workpiece 5 to be welded, thereby limiting and fixing the workpiece during the welding operation and ensuring welding quality. The fixture 3.2 in this embodiment is a fixture 3.2 that can be directly purchased in the existing market.

[0028] Specifically, the limiting component 3 also includes a limiting plate 3.3, which is disposed on the worktable 2 and has a limiting groove 3.3.1 that matches the shape of the workpiece 5 to be welded. The mounting base 3.2.1 is disposed adjacent to the limiting plate 3.3, and the end of the clamping arm 3.2.4 away from the connecting rod structure 3.2.2 is positioned directly opposite the limiting groove 3.3.1. The workpiece body 5.1 of the workpiece 5 to be welded is placed in the limiting groove 3.3.1 and clamped by the clamp 3.2, thereby effectively limiting the workpiece 5 to be welded and preventing displacement during the welding process that would affect the welding quality.

[0029] Furthermore, the number of limiting components 3 is one or more, and the multiple limiting components 3 are evenly distributed on the fixed base 3.1. Setting multiple limiting components 3 on the fixed base 3.1 facilitates the simultaneous welding of multiple workpieces 5 to be welded, and also helps to improve the welding efficiency.

[0030] Furthermore, the fixed base 3.1 is detachably connected to the worktable 2. The detachable connection of the fixed base 3.1 allows for the replacement of the corresponding fixed base 3.1 according to different types of workpieces 5 to be welded during actual operation, thus expanding the application range of the lifting lug welding fixture.

[0031] Example 2

[0032] The difference from Embodiment 1 is that: the fixed base 3.1 includes two detachably arranged first support blocks 3.1.1 and two second support blocks 3.1.2, the two first support blocks 3.1.1 are arranged horizontally at intervals on the worktable 2; the two second support blocks 3.1.2 are arranged vertically at intervals on the worktable 2; and the distance between the two first support blocks 3.1.1 is different from the distance between the two second support blocks 3.1.2; the number of clamps 3.2 is at least two, the worktable 2 is provided with mounting holes 2.1, and the clamps 3.2 are detachably connected to the worktable 2 through the mounting holes 2.1. The first support block 3.1.1 and the second support block 3.1.2 can be used for welding workpieces 5 of different sizes. When changing to workpieces 5 of different sizes, it is only necessary to rotate the rotating mechanism 1 until the support blocks of the corresponding spacing are set horizontally. The operation is simple. The first support block 3.1.1 and the second support block 3.1.2 are detachable, so the spacing between the two first support blocks 3.1.1 or the second support blocks 3.1.2 can be flexibly adjusted, which further expands the application range of the lifting lug welding fixture.

[0033] Furthermore, the structure of the first support block 3.1.1 is the same as that of the second support block 3.1.2; the first support block 3.1.1 includes a vertically connected mounting plate and a support plate. The mounting plate is vertically mounted on the worktable 2 by fasteners, and the support plate is used to support the workpiece 5 to be welded. The mounting plate is connected to the worktable 2 by fasteners, which can effectively ensure the connection strength between the first support block 3.1.1 and the second support block 3.1.2 and the worktable 2, so as to ensure the stability of the support plate supporting the workpiece 5 to be welded.

[0034] Furthermore, the welding fixture for the lifting lugs also includes a positioning pin 4; both the first support block 3.1.1 and the second support block 3.1.2 are provided with first positioning holes 3.1.3, and the two ends of the workpiece 5 to be welded are respectively provided with second positioning holes corresponding to the first positioning holes 3.1.3; the positioning pin 4 passes through the second positioning holes and the first positioning holes 3.1.3 in sequence to position the workpiece 5 to be welded. The workpiece 5 to be welded can be quickly positioned on the fixed base 3.1 by the positioning pin 4. Positioning can be completed simply by passing the positioning pin 4 through the first positioning holes 3.1.3 and the second positioning holes at both ends in sequence, which is simple to operate and improves work efficiency.

[0035] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A welding fixture for lifting lugs, characterized in that, The device includes a rotating mechanism (1), a worktable (2), and a limiting component (3). The worktable (2) is arranged vertically and connected to the output shaft of the rotating mechanism (1). The rotating mechanism (1) can drive the worktable (2) to rotate along a vertical plane. The limiting component (3) includes a fixed seat (3.1) and a clamp (3.2). The fixed seat (3.1) is horizontally arranged on the worktable (2) and is used to support the workpiece (5) to be welded. The clamp (3.2) is arranged on the worktable (2) and is used to press the tool to be welded onto the fixed seat (3.1).

2. The welding fixture for lifting lugs as described in claim 1, characterized in that, The fixture (3.2) includes a mounting base (3.2.1), a connecting rod structure (3.2.2), an operating handle (3.2.3), and a clamping arm (3.2.4). The mounting base (3.2.1) is disposed on the fixed base (3.1). The connecting rod structure (3.2.2) is rotatably disposed on the mounting base (3.2.1), and one end of the connecting rod structure (3.2.2) is connected to the operating handle (3.2.3), and the other end is connected to the clamping arm (3.2.4). The operating handle (3.2.3) can drive the clamping arm (3.2.4) to move closer to or away from the workpiece (5) to be welded through the connecting rod structure (3.2.2).

3. The welding fixture for lifting lugs as described in claim 2, characterized in that, The limiting component (3) further includes a limiting plate (3.3), which is disposed on the worktable (2) and has a limiting groove (3.3.1) that matches the shape of the workpiece (5) to be welded. The mounting base (3.2.1) is disposed adjacent to the limiting plate (3.3), and the end of the clamping arm (3.2.4) away from the connecting rod structure (3.2.2) is disposed opposite to the limiting groove (3.3.1).

4. The welding fixture for lifting lugs as described in claim 3, characterized in that, The number of the limiting components (3) is one or more, and the multiple limiting components (3) are evenly distributed on the fixing base (3.1).

5. The welding fixture for lifting lugs as described in claim 2, characterized in that, The fixed base (3.1) includes two detachably arranged first support blocks (3.1.1) and two second support blocks (3.1.2). The two first support blocks (3.1.1) are arranged horizontally at intervals on the worktable (2); the two second support blocks (3.1.2) are arranged vertically at intervals on the worktable (2); and the distance between the two first support blocks (3.1.1) is different from the distance between the two second support blocks (3.1.2); the number of clamps (3.2) is at least two, and the worktable (2) is provided with mounting holes (2.1). The clamps (3.2) are detachably connected to the worktable (2) through the mounting holes (2.1).

6. The welding fixture for lifting lugs as described in claim 5, characterized in that, The structure of the first support block (3.1.1) is the same as that of the second support block (3.1.2); the first support block (3.1.1) includes a vertically connected mounting plate and a support plate, the mounting plate is set on the workbench (2) in the vertical direction by fasteners, and the support plate is used to support the workpiece (5) to be welded.

7. The welding fixture for lifting lugs as described in claim 6, characterized in that, The welding fixture for the lifting lugs also includes a positioning pin (4); the support plates of the first support block (3.1.1) and the second support block (3.1.2) are each provided with a first positioning hole (3.1.3), and the two ends of the workpiece to be welded (5) are respectively provided with second positioning holes corresponding to the first positioning hole (3.1.3); the positioning pin (4) passes through the second positioning hole and the first positioning hole (3.1.3) in sequence to position the workpiece to be welded (5).

8. The welding fixture for lifting lugs as described in any one of claims 1 to 5, characterized in that, The fixed base (3.1) is detachably connected to the worktable (2).

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