A clamping device for welding steel plates
By combining the adjustment mechanism and the clamping and flipping mechanism, the problem of clamping large-area steel plates in existing devices has been solved, enabling adaptive clamping of steel plates of different sizes and thicknesses, thus improving welding efficiency and safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 中水四局(吐鲁番)装备工程有限公司
- Filing Date
- 2025-08-01
- Publication Date
- 2026-07-03
Smart Images

Figure CN224445106U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of steel plate welding technology, specifically a clamping device for steel plate welding. Background Technology
[0002] Steel plate welding is a process that uses heating or pressurization, or both, to create an atomic bond between two or more steel plates, thus forming a permanent connection. It is one of the most commonly used joining technologies in metal processing and manufacturing, and is widely applied in industries such as construction, bridges, shipbuilding, machinery manufacturing, and pressure vessels.
[0003] For example, the Chinese utility model patent with publication number "CN222626692U" discloses a clamping device for welding steel plates. This utility model uses two steel plates positioned within two rotating rings, each clamped by two clamping frames. Adjustment is achieved using a cylinder to accommodate steel plates of different widths, as shown in the figure. After being clamped and fixed, the steel plates are horizontal. If the adjusting motor is started, it drives a double-ended screw to rotate. When the double-ended screw rotates, the nut on its outer wall, along with components such as a mounting bracket, pulls the two steel plates closer together, bringing their ends into contact for welding. If the rotating motor is started, it drives a drive gear via a transmission shaft. The drive gear, in turn, drives the rotating rings via a gear ring, thus achieving the rotation and flipping of the steel plates for double-sided welding.
[0004] The aforementioned patent allows the steel plate to be rotated and flipped to facilitate welding operations on both sides of the steel plate. However, the size that the device can clamp is limited, making it difficult to effectively clamp the steel plate when welding a large area, thus affecting the welding work. Utility Model Content
[0005] (a) Technical problems to be solved
[0006] To address the shortcomings of existing technologies, this application provides a clamping device for welding steel plates, which solves the problems mentioned in the background section.
[0007] (II) Technical Solution
[0008] To achieve the above objectives, this application provides the following technical solution: a clamping device for welding steel plates, comprising a base, wherein an adjustment mechanism for adjusting the spacing and height of the device is provided inside the base, and a clamping and flipping mechanism for clamping and flipping the steel plate is provided above the base. The adjustment mechanism comprises a bidirectional threaded rod and a slider, wherein the bidirectional threaded rod is rotatably connected to both sides of the inner wall of the base, and the slider is threadedly connected to the surface of the bidirectional threaded rod.
[0009] By adopting the above technical solution, the spacing and height between the clamping structures can be adjusted via the adjustment mechanism, making the device suitable for steel plates of different sizes and improving its applicability. The clamping and flipping mechanism allows the steel plate to be flipped, improving welding efficiency and safety, and the device can clamp steel plates of different thicknesses.
[0010] Preferably, a rocker arm is rotatably connected to one side of the base, the rocker arm is fixedly connected to the bidirectional threaded rod, and an mounting box is fixedly installed on one side of the slider.
[0011] By adopting the above technical solution, the connecting block can be raised and lowered vertically by the telescopic movement of the No. 1 electric push rod, thereby adjusting the overall height of the clamping and flipping mechanism, adapting to steel plates of different thicknesses or welding station heights, and further improving the versatility of the device.
[0012] Preferably, a first electric push rod is fixedly installed at the bottom of the inner wall of the mounting box, and a connecting block is fixedly installed at one end of the first electric push rod.
[0013] By adopting the above technical solution, the mounting plate can be rotated around the shaft, providing a rotational basis for the steel plate to be flipped.
[0014] Preferably, a rotating shaft is rotatably connected to the inner wall surface of the connecting block, a mounting plate is fixedly installed at one end of the rotating shaft, a second electric push rod is fixedly installed on the upper surface of the mounting plate, and a clamping plate is fixedly installed at one end of the second electric push rod.
[0015] By adopting the above technical solution, the gear can be supported and protected by the connecting box. After the rotating shaft passes through the connecting box, it is fixed to the gear, so that the rotation of the gear can synchronously drive the rotating shaft and the mounting plate to rotate.
[0016] Preferably, a connecting box is fixedly installed on one side of the connecting block, the rotating shaft passes through one side of the connecting box and is rotatably connected to one side of the connecting box, and a gear is fixedly installed on the other end of the rotating shaft.
[0017] By adopting the above technical solution, it can be achieved.
[0018] Preferably, a No. 3 electric push rod is fixedly installed on one side of the inner wall of the connecting box, and a rack is fixedly installed at one end of the No. 3 electric push rod, the rack meshing with the gear.
[0019] By adopting the above technical solution, the rack can be driven to move linearly by the No. 3 electric push rod. Through the meshing transmission of the gear and rack, the linear motion is converted into the rotational motion of the rotating shaft to realize the automatic flipping of the steel plate, which facilitates the switching of the welding operation to the other surface of the steel plate.
[0020] (III) Beneficial Effects
[0021] This application provides a clamping device for welding steel plates. It has the following advantages:
[0022] 1. This steel plate welding clamping device, by incorporating an adjustment mechanism, solves the problem that previous steel plate welding clamping devices had limited clamping capacity, making it difficult to effectively clamp large steel plates and thus affecting the welding process. It enables the adjustment of the spacing and height between the clamping structures, making the device suitable for steel plates of different sizes and improving its applicability.
[0023] 2. This steel plate welding clamping device is equipped with a clamping and flipping mechanism, which is driven by a gear and rack transmission via a No. 3 electric push rod. This enables the steel plate to be flipped, improving welding efficiency and safety. The device can also clamp steel plates of different thicknesses. Attached Figure Description
[0024] 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 from these drawings without creative effort.
[0025] Figure 1 This is a schematic diagram of the main appearance structure of this application;
[0026] Figure 2 This is a schematic diagram of the regulating mechanism structure of this application;
[0027] Figure 3 This is a schematic diagram of the internal structure of the mounting box in this application;
[0028] Figure 4 This is a schematic diagram of the clamping and flipping mechanism of this application;
[0029] Figure 5 This is a schematic diagram of the connection box structure of this application.
[0030] In the diagram: 1. Base; 2. Adjustment mechanism; 201. Bidirectional threaded rod; 202. Rocker arm; 203. Slider; 204. Mounting box; 205. Electric push rod No. 1; 206. Connecting block; 3. Clamping and flipping mechanism; 301. Rotating shaft; 302. Mounting plate; 303. Electric push rod No. 2; 304. Clamping plate; 305. Connecting box; 306. Gear; 307. Electric push rod No. 3; 308. Rack. Detailed Implementation
[0031] It should be noted that in the description of the embodiments of this application, the terms "front," "rear," "left," "right," "up," "down," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application 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, and therefore should not be construed as a limitation of this application. The terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication between two elements. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.
[0032] The present application will be further described in detail below with reference to the accompanying drawings and embodiments.
[0033] Reference Figure 1 and Figure 2 This application provides a clamping device for welding steel plates, including a base 1. The base 1 has an adjustment mechanism 2 for adjusting the spacing and height of the devices. Above the base 1 is a clamping and flipping mechanism 3 for clamping and flipping the steel plate. The adjustment mechanism 2 includes a bidirectional threaded rod 201 and a slider 203. The bidirectional threaded rod 201 is rotatably connected to both sides of the inner wall of the base 1, and the slider 203 is threadedly connected to the surface of the bidirectional threaded rod 201. By rotating the rocker arm 202 through the adjustment mechanism 2, the rocker arm 202 drives the bidirectional threaded rod 201 to rotate, causing the slider 203 to move. The movement of the slider 203 causes the mounting box 204 to move to adjust the spacing between the clamping and flipping mechanisms 3. Then, the first electric push rod 205 is activated, which drives the connecting block 206 to rise to adjust the height of the clamping and flipping mechanisms 3. By using the clamping and flipping mechanism 3, the steel plate can be placed at the bottom of the inner wall of the mounting plate 302. The second electric push rod 303 is activated, which drives the clamping plate 304 to descend and clamp the steel plate. After welding one side, the third electric push rod 307 is activated, which drives the rack 308 to move. The rack 308 meshes with the gear 306, which drives the gear 306 to rotate, thereby driving the rotating shaft 301 to rotate. The rotation of the rotating shaft 301 causes the mounting plate 302 and the steel plate to flip over so that the other side of the steel plate can be welded.
[0034] Reference Figure 2 and Figure 3 In one aspect of this embodiment, a rocker arm 202 is rotatably connected to one side of the base 1, the rocker arm 202 is fixedly connected to a bidirectional threaded rod 201, and an mounting box 204 is fixedly installed on one side of the slider 203.
[0035] An electric push rod 205 is fixedly installed at the bottom of the inner wall of the mounting box 204. A connecting block 206 is fixedly installed at one end of the electric push rod 205. By rotating the rocker arm 202, the rocker arm 202 drives the bidirectional threaded rod 201 to rotate, causing the slider 203 to move. The movement of the slider 203 causes the mounting box 204 to move to adjust the distance between the clamping and flipping mechanisms 3. Then, the electric push rod 205 is activated, and the electric push rod 205 drives the connecting block 206 to rise to adjust the height of the clamping and flipping mechanism 3.
[0036] Reference Figure 4 and Figure 5 In one aspect of this embodiment, a rotating shaft 301 is rotatably connected to the inner wall surface of the connecting block 206. A mounting plate 302 is fixedly installed at one end of the rotating shaft 301. A second electric push rod 303 is fixedly installed on the upper surface of the mounting plate 302. A clamping plate 304 is fixedly installed at one end of the second electric push rod 303.
[0037] A connecting box 305 is fixedly installed on one side of the connecting block 206. A rotating shaft 301 passes through one side of the connecting box 305 and is rotatably connected to one side of the connecting box 305. A gear 306 is fixedly installed on the other end of the rotating shaft 301.
[0038] A third electric push rod 307 is fixedly installed on one side of the inner wall of the connecting box 305. A rack 308 is fixedly installed at one end of the third electric push rod 307. The rack 308 meshes with the gear 306. By placing the steel plate at the bottom of the inner wall of the mounting plate 302, the second electric push rod 303 is activated. The second electric push rod 303 drives the clamping plate 304 to descend and clamp the steel plate. After welding one side, the third electric push rod 307 is activated. The third electric push rod 307 drives the rack 308 to move. The rack 308 meshes with the gear 306, causing the gear 306 to rotate, which in turn drives the rotating shaft 301 to rotate. The rotation of the rotating shaft 301 causes the mounting plate 302 and the steel plate to flip over so that the other side of the steel plate can be welded.
[0039] All electrical devices in this plan are powered by an external power source.
[0040] Working Principle: When using this device, first place it in a suitable position, then rotate the rocker arm 202. The rocker arm 202 drives the bidirectional threaded rod 201 to rotate, causing the slider 203 to move. The movement of the slider 203 causes the mounting box 204 to move, adjusting the distance between the clamping and flipping mechanisms 3. Then, activate the first electric push rod 205, which causes the connecting block 206 to rise, adjusting the height of the clamping and flipping mechanism 3. Next, place the steel plate on the bottom of the inner wall of the mounting plate 302, and activate the second electric push rod 303. The second electric push rod 303 causes the clamping plate 304 to descend and clamp the steel plate. After welding one side, activate the third electric push rod 307, which causes the rack 308 to move. The rack 308 meshes with the gear 306, causing the gear 306 to rotate, which in turn causes the rotating shaft 301 to rotate. The rotation of the rotating shaft 301 causes the mounting plate 302 and the steel plate to flip over, facilitating welding on the other side of the steel plate.
[0041] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
[0042] Although embodiments of this application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A clamping device for welding a steel sheet comprising a base (1), characterized in that: The base (1) is provided with an adjustment mechanism (2) for adjusting the spacing and height of the device. The base (1) is provided with a clamping and flipping mechanism (3) for clamping and flipping the steel plate. The adjustment mechanism (2) includes a bidirectional threaded rod (201) and a slider (203). The bidirectional threaded rod (201) is rotatably connected to both sides of the inner wall of the base (1), and the slider (203) is threadedly connected to the surface of the bidirectional threaded rod (201).
2. The clamping device for welding steel plates according to claim 1, characterized in that: A rocker arm (202) is rotatably connected to one side of the base (1), and the rocker arm (202) is fixedly connected to the bidirectional threaded rod (201). An installation box (204) is fixedly installed on one side of the slider (203).
3. A clamping device for steel plate welding according to claim 2, characterized in that: An electric push rod (205) is fixedly installed at the bottom of the inner wall of the mounting box (204), and a connecting block (206) is fixedly installed at one end of the electric push rod (205).
4. A clamping device for welding a steel plate according to claim 3, characterized in that: The inner wall surface of the connecting block (206) is rotatably connected to a rotating shaft (301). One end of the rotating shaft (301) is fixedly installed with an mounting plate (302). The upper surface of the mounting plate (302) is fixedly installed with a second electric push rod (303). One end of the second electric push rod (303) is fixedly installed with a clamping plate (304).
5. A clamping device for welding a steel plate according to claim 4, characterized in that: A connecting box (305) is fixedly installed on one side of the connecting block (206), and the rotating shaft (301) passes through one side of the connecting box (305) and is rotatably connected to one side of the connecting box (305). A gear (306) is fixedly installed on the other end of the rotating shaft (301).
6. A clamping device for welding a steel plate according to claim 5, characterized in that: A third electric push rod (307) is fixedly installed on one side of the inner wall of the connecting box (305). A rack (308) is fixedly installed at one end of the third electric push rod (307), and the rack (308) meshes with the gear (306).