Double-station automatic spot welding machine

Abstract

The utility model belongs to the field of welding equipment relates to a kind of double-station automatic spot welder, including main body, transformer is arranged in the main body, controller, the both sides of the main body are respectively provided with welding station, the welding station includes upper support seat, lower support seat, the upper support seat upper fixedly connected with pneumatic cylinder, the pneumatic cylinder includes movable end, the movable end passes through upper support seat downwards and is fixedly connected with upper electrode arm, the upper electrode arm is connected with upper welding electrode, the lower side of the upper welding electrode is provided with lower welding electrode, load plate is arranged between the upper welding electrode and lower welding electrode, the load plate is provided with the spot welding hole for the lower welding electrode to pass through, the lower side of the load plate is fixedly connected with telescopic link, sleeve is sleeved in the lower side of telescopic link, spring is sleeved outside telescopic link.

Description

Technical Field

[0001] This utility model belongs to the field of welding equipment and relates to a dual-station automatic spot welding machine. Background Technology

[0002] The application document with publication number CN220362095U discloses a dual-station pneumatic spot welding machine, which includes two spot welding stations. Each spot welding station includes an upper welding electrode and a lower welding electrode. The upper welding electrode is driven by a cylinder to move up and down, thereby pressing the workpiece onto the lower welding electrode. After pressing, the power is turned on to perform welding.

[0003] However, the above-mentioned existing technology is inconvenient when placing the workpiece, because the lower welding electrode needs to be higher than the table surface to ensure that the workpiece is pressed firmly onto the lower welding electrode. This results in the workpiece being raised on one side by the lower welding electrode when it is placed, making the workpiece easy to slide and thus making the welding point inaccurate. Summary of the Invention

[0004] To address the aforementioned problems, this utility model provides a dual-station automatic spot welding machine.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a dual-station automatic spot welding machine, comprising a main body, a transformer and a controller disposed within the main body, welding stations respectively disposed on both sides of the main body, each welding station comprising an upper support base and a lower support base, a cylinder fixedly connected above the upper support base, the cylinder comprising a movable end, the movable end passing downward through the upper support base and fixedly connected to an upper electrode arm, the upper electrode arm being connected to an upper welding electrode, a lower welding electrode disposed below the upper welding electrode, a support plate disposed between the upper welding electrode and the lower welding electrode, the support plate being provided with spot welding holes for the lower welding electrode to pass through, a telescopic rod fixedly connected to the lower side of the support plate, a sleeve sleeved below the telescopic rod, and a spring sleeved outside the telescopic rod.

[0006] Preferably, a column is fixedly connected to the lower end of the sleeve.

[0007] Preferably, the lower end of the sleeve is provided with an air hole.

[0008] Compared with the prior art, the advantages and positive effects of this utility model are as follows: This invention features a support plate for carrying the workpiece, with spot welding holes on the plate. A cylinder pushes an upper welding electrode downwards to press against the workpiece, which in turn pushes the workpiece and the support plate downwards. A lower welding electrode passes through the spot welding holes and contacts the underside of the workpiece, clamping the workpiece between the upper and lower welding electrodes for welding. After welding, the upper welding electrode moves upwards, and a spring pushes the support plate upwards. This design facilitates workpiece placement during welding and prevents workpiece movement, resulting in a higher weld pass rate. Attached Figure Description

[0009] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0010] Figure 1 This is a structural schematic diagram of a dual-station automatic spot welding machine.

[0011] In the above figures, 1. Main body; 2. Upper support base; 3. Cylinder; 4. Upper electrode arm; 5. Upper welding electrode; 6. Lower welding electrode; 7. Bearing plate; 8. Spot welding hole; 9. Spring; 10. Sleeve; 11. Column; 12. Air hole. Detailed Implementation

[0012] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0013] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0014] like Figure 1 As shown, a dual-station automatic spot welding machine includes a main body 1, within which a transformer and a controller are installed. Welding stations are located on both sides of the main body 1, each including an upper support base 2 and a lower support base. A cylinder 3 is fixedly connected above the upper support base 2. The cylinder 3 includes a movable end that passes downward through the upper support base 2 and is fixedly connected to an upper electrode arm 4. The upper electrode arm 4 is connected to an upper welding electrode 5. A lower welding electrode 6 is located below the upper welding electrode 5 and is connected to a lower electrode arm, which is fixedly connected to the lower support base. To facilitate workpiece placement, a support plate 7 is provided between the upper welding electrode 5 and the lower welding electrode 6. The support plate 7 has spot welding holes 8 for the lower welding electrode 6 to pass through. A telescopic rod is fixedly connected to the lower side of the support plate 7, with a sleeve 10 fitted below the telescopic rod and a spring 9 fitted over the telescopic rod.

[0015] The working principle of this utility model is as follows: The workpiece is placed on the support plate 7, the cylinder 3 drives the upper welding electrode 5 to descend and press on the workpiece, thereby driving the support plate 7 to descend, so that the lower welding electrode 6 passes through the spot welding hole 8 and presses on the lower side of the workpiece. The upper welding electrode 5 and the lower welding electrode 6 press the workpiece together for welding. After the welding is completed, the cylinder 3 drives the upper welding electrode 5 to move upward, and the spring 9 pushes the support plate 7 to move upward for reset.

[0016] Furthermore, a column 11 is fixedly connected to the lower end of the sleeve 10.

[0017] Furthermore, an air hole 12 is provided at the lower end of the sleeve 10 so that air inside the sleeve 10 can be discharged when the telescopic rod descends.

[0018] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A dual-station automatic spot welding machine, comprising a main body, wherein a transformer and a controller are disposed within the main body, and welding stations are respectively disposed on both sides of the main body. Each welding station includes an upper support base and a lower support base. A cylinder is fixedly connected above the upper support base, the cylinder including a movable end, the movable end passing downward through the upper support base and fixedly connected to an upper electrode arm, the upper electrode arm being connected to an upper welding electrode, and a lower welding electrode being disposed below the upper welding electrode, characterized in that... A support plate is provided between the upper welding electrode and the lower welding electrode. The support plate is provided with spot welding holes for the lower welding electrode to pass through. A telescopic rod is fixedly connected to the lower side of the support plate. A sleeve is sleeved under the telescopic rod, and a spring is sleeved on the telescopic rod.

2. The dual-station automatic spot welding machine according to claim 1, characterized in that, A column is fixedly connected to the lower end of the sleeve.

3. The dual-station automatic spot welding machine according to claim 1, characterized in that, The lower end of the sleeve is provided with an air hole.

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