An electric control cabinet welding fixture

By designing a welding fixture for electrical control cabinets and utilizing a positioning structure that combines a lifting column, a cantilever, and a welding torch, the problems of low welding efficiency and inaccurate right angle at the joints of electrical control cabinet plates were solved, achieving efficient and accurate welding results.

CN224587347UActive Publication Date: 2026-08-04CHINA NUCLEAR ELECTRICAL CO LTD +2
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHINA NUCLEAR ELECTRICAL CO LTD
Filing Date
2025-08-20
Publication Date
2026-08-04

AI Technical Summary

Technical Problem

In existing technologies, the welding efficiency at the joints of electrical control cabinet panels is low and it is difficult to ensure the right angle, which affects the quality of subsequent assembly.

Method used

Design an electrical control cabinet welding fixture, including an operating table, limiting components and welding equipment. Through the cooperation of lifting columns, cantilever and welding gun, the rectangular cabinet is positioned by using the surrounding plate, side stop and end stop, and the limiting plate and pressure plate ensure that the joint is right angle to ensure welding quality.

Benefits of technology

It achieves automatic positioning and efficient welding of electrical control cabinets, ensuring right angles at the joints and improving welding quality and efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The application provides an electric control cabinet welding clamp, which belongs to the technical field of electric control cabinet production equipment, and is characterized by that the clamp is arranged on one side of the output end of a welding device, and comprises an operating table, one end of the welding device is vertically provided with a limiting piece, the operating table comprises a table plate, an L-shaped surrounding plate is arranged on the table plate, a right-angle gap vertically downward penetrating through the table plate is arranged at the right angle position in the surrounding plate, a side limiting piece is movably arranged on the opposite surface of the vertical part of the surrounding plate, an end limiting piece is arranged on the opposite surface of the horizontal part of the surrounding plate, and the surrounding plate, the side limiting piece and the end limiting piece form a clamping area. The scheme provided by the application can automatically position the rectangular cabinet body to be welded, and can ensure that the butt joint is a right angle after welding, thereby ensuring the welding quality of the rectangular cabinet body.
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Description

Technical Field

[0001] This utility model belongs to the technical field of electrical control cabinet production equipment, and in particular relates to an electrical control cabinet clamp. Background Technology

[0002] For electrical control cabinets with an integrated molding process, the sheet metal is usually cut according to the drawings. Then, the sheet metal is fed into a bending machine along its length. The bending machine bends the sheet metal three times at a predetermined position along its width to form a rectangular frame structure. The two ends of the sheet metal are then welded together to form the main body of the electrical control cabinet. Finally, the rear side panel and door panel are installed to form the cabinet body.

[0003] When welding the joints of the two ends of the sheet metal, the bent sheet metal, which has been formed into a rectangular frame, is placed on the workbench by hand. One side of the rectangular frame is placed against a vertically set plane, while the other side is manually controlled to align the joints. Then, a welding gun is used for spot welding to ensure that the two ends of the joint are aligned. Finally, the joints are welded together to fix the joints.

[0004] Therefore, this method cannot directly weld along the seam at the joint, resulting in low efficiency. Furthermore, the lack of positioning components on both the inner and outer sides of the joint may cause the welded joint to not be a right angle, thus affecting subsequent assembly. Utility Model Content

[0005] To address the shortcomings of the existing technology, this utility model provides a welding fixture for electrical control cabinets, which can automatically position the rectangular cabinet to be welded and ensure that the welded joint is a right angle, thus ensuring the welding quality of the rectangular cabinet.

[0006] In order to achieve the purpose of this utility model, the following solution is proposed: A welding fixture for an electrical control cabinet is located on one side of the output end of a welding equipment. It includes an operating table, with a limiting member vertically provided at one end of the welding equipment. The operating table includes a table plate with an L-shaped surrounding plate on it. A right-angle notch is provided at the inner right angle of the surrounding plate, which extends vertically downward through the table plate. A side stop is provided on the opposite side of the vertical part of the surrounding plate, and an end stop is provided on the opposite side of the horizontal part of the surrounding plate. The surrounding plate, the side stop, and the end stop form a clamping area.

[0007] Furthermore, the welding equipment includes a lifting column, with a cantilever vertically mounted on the top of the lifting column. A welding torch is mounted on the bottom surface of the cantilever, with a right-angled notch in an L-shape, the inner right angle facing outwards, and the output end of the welding torch being positioned opposite the inner right angle of the right-angled notch.

[0008] Furthermore, the limiting component includes a square rod vertically positioned on one side of the welding torch. The projection of one right angle of the square rod onto the horizontal plane coincides with the projection of the inner right angle of the right-angle notch. A spring and a square sleeve are sequentially fitted onto the square rod from top to bottom. The two ends of the spring abut against the cantilever and the square sleeve, respectively. The lower end of the square rod protrudes outward to form a limiting plate. The projection of the limiting plate in the horizontal direction is opposite to the side wall of the right-angle notch.

[0009] Furthermore, the projection of the outer wall dimension of the square sleeve onto the horizontal plane is greater than the side wall length of the right-angled notch.

[0010] Furthermore, the lower end of the square sleeve has a tapered structure.

[0011] Furthermore, the upper end of the square sleeve protrudes outward and is provided with a mounting plate, which is parallel to the right angle side of the right angle notch. The lower end of the mounting plate is provided with an L-shaped pressure plate, which is slidably connected to the outer wall of the square sleeve. The two ends of the pressure plate protrude from the corresponding sides of the square sleeve, and a screw is provided vertically at the inner right angle of the pressure plate. After the screw passes through the mounting plate, a locking nut is connected to it.

[0012] The beneficial effects of this utility model are as follows: Side and end stops are applied to the two adjacent sides of the rectangular cabinet, and the other two adjacent sides of the rectangular cabinet abut against the vertical and horizontal parts of the enclosure, respectively, to limit the perimeter of the rectangular cabinet. When the lifting column moves vertically downward, the cantilever moves downward, the square sleeve acts on the inner walls of both sides of the joint to ensure that the joint of the rectangular cabinet is at a right angle. The pressure plate is pressed against the top surface of the two side walls of the joint to prevent misalignment of the joint of the rectangular cabinet, thereby ensuring the welding quality of the rectangular cabinet. Attached Figure Description

[0013] The accompanying drawings described herein are merely illustrative of selected embodiments, not all possible implementations, and are not intended to limit the scope of this invention.

[0014] Figure 1 A schematic diagram illustrating the application scenario of this application is shown.

[0015] Figure 2 This application shows Figure 1 A magnified view of a portion of point A in the middle.

[0016] Figure 3 This application shows Figure 1 A three-dimensional diagram of the other side.

[0017] Figure 4 This application shows Figure 3 A magnified view of part B in the diagram.

[0018] Figure 5 A bottom view of this application is shown.

[0019] Figure 6 This application shows Figure 5 A magnified view of part C in the diagram.

[0020] Figure 7 This application shows the following: Figure 5 Cross-sectional view along the AA direction.

[0021] Figure 8 This application shows Figure 7 A magnified view of part D in the diagram.

[0022] Figure 9 A schematic diagram of the welding equipment structure of this application is shown.

[0023] The markings in the diagram are: Welding equipment-10, Lifting column-11, Cantilever-12, Welding torch-13, Limiting component-14, Square rod-141, Spring-142, Square sleeve-143, Limiting plate-144, Mounting plate-145, Pressure plate-146, Screw-147, Nut-148, Operating table-20, Platform-21, Enclosure-22, Right angle notch-221, Side stop-23, End stop-24. Detailed Implementation

[0024] To make the objectives, technical solutions and advantages of the present utility model clearer, the implementation methods of the present utility model will be described in detail below with reference to the accompanying drawings. However, the embodiments described in the present utility model are only some embodiments of the present utility model, and not all embodiments.

[0025] like Figures 1-9 As shown, this embodiment provides a welding fixture for an electrical control cabinet, which is located on one side of the output end of the welding equipment 10. It includes an operating table 20 for positioning the rectangular cabinet 1 formed after three bends, so as to facilitate welding at the joint of the welding equipment 10 and realize the main body splicing of the electrical control cabinet.

[0026] Specifically, such as Figures 1-2 As shown, the welding equipment 10 includes a lifting column 11, a cantilever 12, a welding torch 13, and a limiting member 14. The lifting column 11 is vertically arranged, with its lower end fixedly connected to the ground. The cantilever 12 is horizontally arranged, with one end of the cantilever 12 vertically connected to the upper side of the lifting column 11. The welding torch 13 is located on the bottom surface of the cantilever 12, with its output end facing downwards and vertically arranged. The limiting member 14 is located on the bottom surface of the cantilever 12, spaced apart from the welding torch 13 in the direction facing the other end of the cantilever 12.

[0027] The operating table 20 includes a tabletop 21, a side panel 22, a side stop 23, and an end stop 24. The tabletop 21 has a rectangular plate structure and is horizontally arranged. The side panel 22 has a horizontally arranged L-shaped structure and is placed on the tabletop 21. The horizontal part of the L-shaped side panel 22 is located on one end of the tabletop 21, and the vertical part of the side panel 22 is located on one side of the tabletop 21. The right angle of the side panel 22 corresponds to the lower end of the cantilever 12. The horizontal part of the side panel 22 limits one end of the rectangular frame 1, and the vertical part of the side panel 22 limits one side of the rectangular cabinet 1.

[0028] A right-angle notch 221 is provided at the right angle of the enclosure 22. The inner right angle of the right-angle notch 221 faces outward, and the projection of the diagonal of the inner right angle of the right-angle notch 221 onto the horizontal plane is opposite to the output end of the welding gun 13. The right-angle notch 221 vertically penetrates the bottom surface of the platform 21. In use, the side walls on both sides of the joint of the rectangular cabinet 1 abut against the vertical and horizontal parts of the enclosure 22, respectively, and the joint of the rectangular cabinet 1 extends outward along the right-angle notch 221.

[0029] The side baffle 23 is located on the other side of the platform 21 and is positioned opposite to the vertical part of the enclosure 22. The side baffle 23 can be moved along the width of the platform 21 and is used to block the other side of the rectangular cabinet 1. The side baffle 23 includes a side baffle and a first cylinder located on the other side of the platform 21.

[0030] An end stop 24 is located at the other end of the platform 21, including an end baffle and a second cylinder located at the other end of the platform 21, for limiting the other end of the rectangular cabinet 1.

[0031] This allows the enclosure 22, side stops 23, and end stops 24 to form a clamping area on the platform 21, thus limiting the outer perimeter of the rectangular cabinet 1 during welding.

[0032] Specifically, such as Figures 3-6 , Figure 9 As shown, the limiting component 14 includes a square rod 141, a spring 142, a square sleeve 143, a limiting plate 144, a mounting plate 145, a pressure plate 146, a screw 147, and a nut 148. The square rod 141 is vertically positioned below the other end of the cantilever 12. The spring 142 and the square sleeve 143 are sequentially fitted onto the outer wall of the square rod 141 from top to bottom along the length of the square rod 141. The limiting plate 144 is located at the lower end of the square rod 141 and is used to limit the lower end of the square sleeve 143 to prevent the square sleeve 143 from falling out of the square rod 141. The limiting plate 144 is L-shaped, and its inner right angle is opposite to the inner right angle of the right angle notch 221.

[0033] Mounting plate 145 is set on the upper end of square sleeve 143. Mounting plate 145 has an L-shaped structure, and its inner right angle is consistent with the inner right angle of notch 221. Pressure plate 146 is slidably set on the outer wall of square sleeve 143. Pressure plate 146 has an L-shaped structure, and its inner right angle is consistent with the inner right angle of mounting plate 145. Both ends of pressure plate 146 protrude outward from the two ends of mounting plate 145 by a certain length, and are used to press the upper side walls on both sides of the joint of rectangular cabinet 1, so that the upper and lower sides of rectangular cabinet 1 remain horizontal during welding, and to prevent the rectangular cabinet 1 from being skewed after welding.

[0034] To accommodate rectangular cabinets of different widths, a threaded hole is vertically through the right angle of the mounting plate 145. A screw 147 is vertically positioned at the right angle of the pressure plate 146. After the upper end of the screw 147 passes vertically upward through the threaded hole, a nut 148 is used to thread it to the screw 147 to achieve the vertical height position of the pressure plate 146.

[0035] At the joint of the rectangular frame 1, the two side walls may be misaligned inwards. To avoid interference between the lower end of the square sleeve 143 and the misaligned side wall of the rectangular frame 1 during the descent of the square sleeve 143, the lower end of the square sleeve 143 is designed as an inverted conical structure.

[0036] Specific operating procedures: Place the rectangular cabinet 1 vertically onto the platform 11, with the joint of the rectangular cabinet 1 extending outward along the right-angle notch 221. Activate the first and second cylinders respectively to simultaneously push the rectangular cabinet 1 with the side baffle and end baffle, so that the side and end of the rectangular cabinet 1 facing the enclosure 22 abut against the vertical and horizontal parts of the enclosure 22 respectively.

[0037] Then, the lifting column 11 is activated, causing it to move the cantilever 12 vertically downwards. For example... Figures 7-8 As shown, the two side walls of the square rod 141 are vertically downward through the two side walls of the right angle inside the right angle notch 221 and pass through the platform 21. The two outer side walls of the square sleeve 143 facing the right angle of the output end of the welding gun 13 are respectively attached to the inner side walls of the right angle at the joint of the rectangular frame 1, so that the joint of the rectangular frame 1 maintains a right angle during the welding process to ensure the welding quality.

[0038] During welding, the pressure plate 146 presses down on the top surface of the two side walls of the rectangular frame 1 at the joint under the action of the spring 142, so as to avoid misalignment of the joint at the joint of the rectangular frame 1.

[0039] The above description is merely a preferred embodiment of this utility model and does not imply its uniqueness or limitation. Those skilled in the art should understand that various changes or equivalent substitutions made to this utility model without departing from its scope are all within the protection scope of this utility model.

Claims

1. A welding fixture for an electrical control cabinet, disposed on one side of the output end of a welding device (10), comprising an operating table (20), characterized in that: The welding equipment (10) has a vertically positioned limiting member (14) at one end. The operating table (20) includes a table plate (21) with an L-shaped surrounding plate (22) on it. A right-angle notch (221) is provided at the inner right angle, which extends vertically downward through the table plate (21). The vertical side of the surrounding plate (22) is provided with a side stop (23), and the horizontal side of the surrounding plate (22) is provided with an end stop (24). The surrounding plate (22), the side stop (23), and the end stop (24) form a clamping area.

2. The electrical control cabinet welding fixture according to claim 1, characterized in that, The welding equipment (10) includes a lifting column (11), a cantilever (12) is vertically provided at the top of the lifting column (11), a welding gun (13) is installed on the bottom surface of the cantilever (12), the right angle notch (221) is L-shaped, its inner right angle faces outward, and the output end of the welding gun (13) is set opposite to the inner right angle of the right angle notch (221).

3. The electrical control cabinet welding fixture according to claim 2, characterized in that, The limiting component (14) includes a square rod (141) vertically disposed on one side of the welding torch (13). The projection of one right angle of the square rod (141) and the inner right angle of the right angle notch (221) on the horizontal plane coincides. The square rod (141) is fitted with a spring (142) and a square sleeve (143) from top to bottom. The two ends of the spring (142) abut against the cantilever (12) and the square sleeve (143) respectively. The lower end of the square rod (141) protrudes outward to form a limiting plate (144). The projection of the limiting plate (144) in the horizontal direction is opposite to the side wall of the right angle notch (221).

4. The electrical control cabinet welding fixture according to claim 3, characterized in that, The projection of the outer wall dimension of the square sleeve (143) onto the horizontal plane is greater than the side wall length of the right angle notch (221).

5. The electrical control cabinet welding fixture according to claim 3, characterized in that, The lower end of the square sleeve (143) has a tapered structure.

6. The electrical control cabinet welding fixture according to claim 3, characterized in that, The upper end of the square sleeve (143) protrudes outward and is provided with a mounting plate (145). The mounting plate (145) is parallel to the right angle side of the right angle notch (221). The lower end of the mounting plate (145) is provided with an L-shaped pressure plate (146). The pressure plate (146) is slidably connected to the outer wall of the square sleeve (143). The two ends of the pressure plate (146) protrude from the corresponding sides of the square sleeve (143). A screw (147) is provided vertically at the inner right angle of the pressure plate (146). The screw (147) passes through the mounting plate (145) and is connected to a locking nut (148).