Double-layer anti-deformation pressing tool for thin plate welding
By designing a double-layer anti-deformation clamping fixture, and utilizing the combined structure of the upper and lower pressing components, the problem of controlling warping deformation during thin plate welding was solved. This achieved stable clamping of thin plates and thickness adaptability adjustment, thereby improving the stability and applicability of welding.
Patent Information
- Application Number
- CN202522008147.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-18
- Publication Date
- 2026-11-03
- Estimated Expiration
- 2035-09-18
AI Technical Summary
Existing welding fixtures are difficult to effectively control warping deformation when welding thin plates, and are not easy to adjust to accommodate thin plates of different thicknesses.
A double-layer anti-deformation clamping fixture was designed, comprising an upper lifting component and a lower pressing component, providing upper and lower double-layer limiting surfaces. Through a hydraulically driven pressure plate and an adjustable rotating arm and screw structure, it can achieve clamping and position adjustment of the front and back sides of the thin plate.
It effectively controls warping deformation during the welding process, adapts to thin plates of different thicknesses, and improves the stability and flexibility of welding.
Smart Images
Figure CN224927288U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of welding tooling technology, specifically a double-layer anti-deformation clamping tooling for thin plate welding. Background Technology
[0002] Welding, also known as fusion welding, is a manufacturing process and technology that joins metals or other thermoplastic materials such as plastics by heating, high temperature or high pressure.
[0003] In precision structure manufacturing, welding thin plates requires high control over the shape and properties of the structure. When welding thin plates, they are very thin and can melt through if not handled carefully. Furthermore, the amount of deformation is not easy to control. Among the existing welding fixtures, there are few fixtures specifically designed for welding thin plates. Moreover, the existing fixtures are not easy to adjust when processing thin plates of different thicknesses. Utility Model Content
[0004] In view of the deficiencies of the prior art, this utility model provides a double-layer anti-deformation clamping fixture for thin plate welding. It can provide upper and lower double-layer limiting surfaces and simultaneously clamp the front and back sides of the thin plate, thereby effectively controlling warping deformation. It is easy to adjust, highly flexible, and has a wide range of applications.
[0005] To achieve the above objectives, the present invention provides a double-layer anti-deformation clamping fixture for thin plate welding, comprising a base and at least two clamping mechanisms disposed on the base. Each clamping mechanism includes an upper lifting assembly and a lower pressing assembly. The upper lifting assembly includes a first bracket fixed on the base and a first hydraulic cylinder disposed on the first bracket. The output end of the first hydraulic cylinder is provided with a first pressure plate. The lower pressing assembly includes a second bracket fixed on the base, a rotating arm rotatably connected to the second bracket, an adjusting screw passing through the rotating arm, a second pressure plate fixed to the adjusting screw, and an upper adjusting nut and a lower adjusting nut threadedly connected to the adjusting screw. The upper adjusting nut and the lower adjusting nut are respectively disposed on both sides of the rotating arm.
[0006] Furthermore, the rotating arm has an elongated slot, the open end of which is connected to the shaft of the second support.
[0007] Furthermore, the adjusting screw passes through the elongated slot.
[0008] Furthermore, a T-shaped positioning groove is provided on the base, and the first bracket and the second bracket are detachably fixed to the T-shaped positioning groove.
[0009] Furthermore, the second bracket includes an I-shaped bottom bracket detachably fixed to the base and an inverted T-shaped bracket disposed on the upper part of the I-shaped bottom bracket.
[0010] Furthermore, a limiting pin is detachably provided on the inverted T-shaped bracket. When the rotating arm rotates to a position perpendicular to the inverted T-shaped bracket, the limiting pin is used to support the rotating arm.
[0011] Furthermore, both the first pressure plate and the second pressure plate are circular plate structures.
[0012] Furthermore, the first pressure plate and the second pressure plate are coaxially arranged and have the same radius.
[0013] Furthermore, the clamping mechanism is provided in six parts.
[0014] Furthermore, both the first pressure plate and the second pressure plate are provided with a buffer layer.
[0015] In use, first activate the first hydraulic cylinder of the upper assembly to adjust the first pressure plate to a suitable height. At this time, the rotating arm is in the rotating open state. Place the thin plate from top to bottom on the upper part of the first pressure plate, rotate the rotating arm, and then adjust the upper adjusting nut to increase the distance between the upper adjusting nut and the second pressure plate, so that the second pressure plate moves down to clamp the thin plate between the first pressure plate and the second pressure plate. Next, adjust the lower adjusting nut until it is completely in contact with the lower surface of the rotating arm to lock the position of the second pressure plate.
[0016] The beneficial effects of this invention are as follows: During the welding process, the upper and lower pressing components provide double-layer limiting surfaces, with the first pressing plate providing the lower limiting surface and the second pressing plate providing the upper limiting surface, simultaneously pressing both sides of the thin plate, thereby effectively controlling warping deformation. Furthermore, the adjusting screw, in conjunction with the upper and lower adjusting nuts, can adjust the position of the second pressing plate, thus adapting to thin plates of different thicknesses. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the structure of a double-layer anti-deformation clamping fixture for thin plate welding in one embodiment of the present invention; Figure 2 This is a schematic diagram of the pressing mechanism in one embodiment of the present invention; Figure 3 This is a cross-sectional view of a double-layer anti-deformation clamping fixture for thin plate welding in one embodiment of the present invention; Figure 4 This is a schematic diagram of the structure of the pressing component in one embodiment of the present invention; Figure 5 for Figure 4 Side view of the middle and lower pressure components; Figure 6 This is a partial enlarged view of the location of the T-shaped positioning groove in one embodiment of the present invention; In the diagram: 100, base; 110, T-slot; 111, T-block; 112, bolt. 200. Clamping mechanism, 210. Upper support assembly; 211. First support bracket; 212. First hydraulic cylinder; 213. First pressure plate. 220. Downward pressing assembly; 221. Second bracket; 2211. I-beam bottom bracket; 2212. Inverted T-shaped bracket; 2213. Limiting pin; 222. Rotating arm; 2221. Long strip-shaped opening slot; 223. Adjusting screw; 224. Second pressure plate; 225. Upper adjusting nut; 226. Lower adjusting nut. 10. Thin plates. Detailed Implementation
[0018] To make the above-mentioned objects, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.
[0019] See Figure 1 This diagram illustrates a double-layer anti-deformation clamping fixture for thin plate welding according to an embodiment of the present invention. It includes a base 100 and at least two clamping mechanisms 200 disposed on the base 100. The specific number of clamping mechanisms 200 can be determined according to the number of thin plates 10 to be welded. Each clamping mechanism 200 includes an upper lifting component 210 and a lower pressing component 220. The upper lifting component 210 supports the thin plate 10 from below upwards, while the lower pressing component 220 limits the thin plate 10 from above downwards. This arrangement limits the thin plate 10 on both its upper and lower sides, reducing the possibility of deformation during welding and minimizing the deformation amount.
[0020] See Figures 2-5Specifically, the upper support assembly 210 includes a first bracket 211 fixed to the base 100 and a first hydraulic cylinder 212 mounted on the first bracket 211. A first pressure plate 213 is mounted on the output end of the first hydraulic cylinder 212. The first hydraulic cylinder 212 can drive the first pressure plate 213 to adjust its height. The lower support assembly 220 includes a second bracket 221 fixed to the base 100, a rotating arm 222 rotatably connected to the second bracket 221, an adjusting screw 223 passing through the rotating arm 222, a second pressure plate 224 fixed to the adjusting screw 223, and an upper adjusting nut 225 and a lower adjusting nut 226 threadedly connected to the adjusting screw 223. The upper adjusting nut 225 and the lower adjusting nut 226 are respectively located on both sides of the rotating arm 222. The operator can rotate the rotating arm 222 relative to the second bracket 221 to avoid the thin plate 10 placed from top to bottom. Preferably, an upper washer is provided between the upper adjusting nut 225 and the rotating arm 222, and a lower washer is provided between the lower adjusting nut 226 and the rotating arm 222.
[0021] In use, firstly, the first hydraulic cylinder 212 of the upper lifting assembly 210 is activated to adjust the first pressure plate 213 to a suitable height, moving the first pressure plate 213 to the first position. At this time, the rotating arm 222 is in the rotated open state. The thin plate 10 is placed on the upper part of the first pressure plate 213. The rotating arm 222 is rotated, and then the upper adjusting nut 225 is adjusted to increase the distance between the upper adjusting nut 225 and the second pressure plate 224, causing the second pressure plate 224 to move downward, thus clamping the thin plate 10 between the first pressure plate 213 and the second pressure plate 224. Next, the lower adjusting nut 226 is adjusted until it is completely in contact with the lower surface of the rotating arm 222 to lock the position of the second pressure plate 224. During the welding process, the upper lifting assembly 210 and the lower pressing assembly 220 can provide upper and lower double-layer limiting surfaces, while pressing the front and back sides of the thin plate 10, thereby effectively controlling warping deformation. After welding is completed, the first hydraulic cylinder 212 of the upper lifting assembly 210 is activated to lower the first pressure plate 213 by a certain height, moving the first pressure plate 213 to the second position. The rotating arm 222 is then rotated and opened to remove the thin plate 10. When the thickness of the processed thin plate 10 remains unchanged, there is no need to readjust the upper adjusting nut 225 and the lower adjusting nut 226. The thin plate 10 is then repositioned, and the rotating arm 222 is rotated again. The first hydraulic cylinder 212 of the upper lifting assembly 210 is then activated to push the first pressure plate 213 from the second position to the first position, so that the second pressure plate 224 contacts the thin plate 10. In this embodiment, the adjusting screw 223, in conjunction with the upper adjusting nut 225 and the lower adjusting nut 226, can adjust the position of the second pressure plate 224, thereby accommodating thin plates 10 of different thicknesses.
[0022] See details Figure 3 and Figure 4In one embodiment, the rotating arm 222 has an elongated slot 2221, the open end of which is connected to the shaft of the second bracket 221. In another embodiment, the adjusting screw 223 passes through the elongated slot 2221.
[0023] During installation, first screw the lower adjusting nut 226 into the adjusting screw 223, pass the adjusting screw 223 through the elongated slot 2221, and then screw the upper adjusting nut 225 into the adjusting screw 223. The upper adjusting nut 225 and the lower adjusting nut 226 can clamp the rotating arm 222 from the upper and lower sides, thereby locking the position of the second pressure plate 224 to accommodate thin plates 10 of different thicknesses.
[0024] See Figure 4 and Figure 5 In one embodiment, the second bracket 221 includes an I-shaped bottom bracket 2211 detachably fixed to the base 100 and an inverted T-shaped bracket 2212 disposed on the upper part of the I-shaped bottom bracket 2211.
[0025] In one embodiment, a limiting pin 2213 is detachably provided on the inverted T-shaped bracket 2212. When the rotating arm 222 rotates to a position perpendicular to the inverted T-shaped bracket 2212, the limiting pin 2213 supports the rotating arm 222. Specifically, a through hole is provided on the inverted T-shaped bracket 2212. When it is necessary to lock the downward rotation limit position of the rotating arm 222, the limiting pin 2213 is inserted into the through hole, and the limiting pin 2213 can prevent the rotating arm 22 from continuing to rotate. It should be noted that, in addition to the above-mentioned locking method, a clamping bolt can also be provided at the rotatable connection position between the rotating arm 222 and the inverted T-shaped bracket 2212 to lock the relative position of the rotating arm 222 and the inverted T-shaped bracket 2212.
[0026] In one embodiment, both the first pressing plate 213 and the second pressing plate 224 are circular plate structures. Correspondingly, in another embodiment, the first pressing plate 213 and the second pressing plate 224 are coaxially arranged and have the same radius, which makes the force on the thin plate 10 more balanced. It should be noted that, in specific configurations, the sizes of the first pressing plate 213 and the second pressing plate 224 can be set according to the dimensions of the thin plate 10 to be processed, thereby increasing the contact area with the thin plate 10, making the positioning of the thin plate 10 more stable, and thus improving the stability of the processing.
[0027] See also Figure 1 In one embodiment, six clamping mechanisms 200 are provided. Specifically, the appropriate number of clamping mechanisms 200 can be selected to position the same thin plate 10 according to its size and aspect ratio. For example... Figure 1As shown, when the size of the thin plate 10 is small, one clamping mechanism 200 can be used to clamp one thin plate 10. The figure shows the positioning method when two small thin plates 10 are butt welded. When the size of the thin plate 10 is large, two clamping mechanisms 200 can be used to clamp one thin plate 10 at the same time. If there are two thin plates 10, four clamping mechanisms 200 are required.
[0028] Furthermore, such as Figure 3 and Figure 6 As shown, to facilitate adjustment of the position of the clamping mechanism 200, in one embodiment, a T-shaped positioning groove 110 is provided on the base 100, and the first bracket 211 and the second bracket 221 are detachably fixed to the T-shaped positioning groove 110. During processing, the positions of the first bracket 211 and the second bracket 221 relative to the T-shaped positioning groove 110 can be adjusted according to the relative position and size of the thin plate 10 to be welded, so as to make the positioning of the thin plate 10 more stable, thereby improving the stability of the processing. Specifically, a T-shaped block 111 can be slidably set inside the T-shaped positioning groove 110, and a threaded hole is opened on the T-shaped block 111. The bolt 112 passes through the first bracket 211 or the second bracket 221 and connects to the threaded hole of the T-shaped block. When adjusting the position, the position of the T-shaped block 111 is adjusted first and then fixed. It should be noted that the T-shaped positioning groove 110 can also be set as a wedge structure, and the slider is set as a wedge block accordingly.
[0029] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", 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 utility model and simplifying the description, and are not intended to 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 utility model.
[0030] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.
[0031] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0032] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature. It should be noted that when an element is referred to as "fixed to" or "set on" another element, it can be directly on the other element or there may be an intermediate element present. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element present. The terms "vertical," "horizontal," "above," "below," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible embodiments.
Claims
1. A double-layer anti-deformation clamping fixture for thin plate welding, characterized in that: It includes a base and at least two clamping mechanisms disposed on the base, each of the clamping mechanisms including The upper component includes a first bracket fixed on the base and a first hydraulic cylinder disposed on the first bracket, wherein a first pressure plate is provided at the output end of the first hydraulic cylinder. The pressing assembly includes a second bracket fixed on the base, a rotating arm rotatably connected to the second bracket, an adjusting screw passing through the rotating arm, a second pressing plate fixed to the adjusting screw, an upper adjusting nut and a lower adjusting nut threadedly connected to the adjusting screw, the upper adjusting nut and the lower adjusting nut being respectively disposed on both sides of the rotating arm; The base is provided with a T-shaped positioning groove, and the first bracket and the second bracket are detachably fixed to the T-shaped positioning groove; The second bracket includes an I-shaped bottom bracket detachably fixed to the base and an inverted T-shaped bracket disposed on the upper part of the I-shaped bottom bracket; a clamping bolt is provided at the position where the rotating arm and the inverted T-shaped bracket are rotatably connected to lock the relative position of the rotating arm and the inverted T-shaped bracket.
2. The double-layer anti-deformation clamping fixture for thin plate welding according to claim 1, characterized in that: The rotating arm has an elongated slot, and the open end of the slot is connected to the shaft of the second support.
3. The double-layer anti-deformation clamping fixture for thin plate welding according to claim 2, characterized in that: The adjusting screw passes through the elongated slot.
4. The double-layer anti-deformation clamping fixture for thin plate welding according to claim 1, characterized in that: The inverted T-shaped bracket is detachably provided with a limiting pin, which is used to support the rotating arm when the rotating arm is rotated to a position perpendicular to the inverted T-shaped bracket.
5. The double-layer anti-deformation clamping fixture for thin plate welding according to any one of claims 1-3, characterized in that: Both the first pressure plate and the second pressure plate are circular plate structures.
6. The double-layer anti-deformation clamping fixture for thin plate welding according to claim 5, characterized in that: The first pressure plate and the second pressure plate are coaxially arranged and have the same radius.
7. The double-layer anti-deformation clamping fixture for thin plate welding according to any one of claims 1-3, characterized in that: The clamping mechanism is provided in six parts.
8. The double-layer anti-deformation clamping fixture for thin plate welding according to any one of claims 1-3, characterized in that: Both the first pressure plate and the second pressure plate are provided with a buffer layer.