A thin plate anti-deformation welding fixture

Abstract

This utility model relates to the field of welding fixtures, and more particularly to a welding fixture for preventing deformation of thin plates. It includes a base and two metal plates. A machining groove is formed on the upper surface of the base. A fixing device is provided on the inner wall of the machining groove. The fixing device includes two through holes, each with a threaded screw connected to its inner wall. A round knob is fixedly connected to the ends of the two screws that are furthest from each other. A clamping plate is rotatably connected to the ends of the screws furthest from the round knobs. Two slag discharge holes are formed at the bottom of the inner wall of the machining groove, and a sliding rod is fixedly connected to the inner wall of each of the two slag discharge holes. This utility model provides a welding fixture for preventing deformation of thin plates, solving the problem that existing fixtures require constant replacement to limit and clamp the thin metal plates of different lengths and widths to prevent deformation. Changing fixtures is not only complicated but also wastes a lot of time, reducing the efficiency of welding work.

Description

Technical Field

[0001] This utility model relates to the field of welding fixtures, and in particular to a welding fixture for preventing deformation of thin plates. Background Technology

[0002] Welding is a manufacturing technology that uses heating or pressurization, or both, to create an atomic bond between two or more metal or non-metal workpieces, forming a permanent connection. Its core lies in using energy input to bring the material interface to a molten or plastic state, promoting atomic diffusion and fusion.

[0003] Existing technologies, such as the utility model patent with publication number CN220278691U, disclose a fixture for laser welding of thin plates. This patent comprises a fixed base, a clamping module, a thin plate workpiece, and a protective module. The fixed base has four through holes around its perimeter and a straight groove in the center, with four threaded holes around the groove. The clamping module has threaded holes and air holes on both sides, and a cavity in the center with an inclined air outlet channel. The fixture for laser welding of thin plates provided by this utility model is easy to install, securely fixed, and convenient to disassemble; it can reduce damage to the fixture caused by laser welding; it can reduce deformation of the thin plate workpiece during laser welding; it can provide a protective atmosphere to prevent the influence of fumes and slag on the processing, thereby improving welding quality.

[0004] The inventors discovered the following problems in the above content: In the field of welding, especially when welding thin plates, the thin plates often deform due to rapid thermal expansion, leading to welding failure. In the prior art, clamps are used to limit and fix the thin plates to prevent deformation. However, when dealing with metal plates of different lengths and widths, existing clamps need to be changed frequently to limit and clamp them to prevent deformation. Changing clamps is not only complicated but also wastes a lot of time, reducing the efficiency of welding work. Utility Model Content

[0005] The purpose of this invention is to solve the problem that existing clamps require constant replacement to limit and hold metal sheets of different lengths and widths to prevent deformation. Changing clamps is not only complicated but also wastes a lot of time, reducing the efficiency of welding work.

[0006] To solve the above technical problems, this utility model provides a thin plate anti-deformation welding fixture, comprising: a base and two metal plates. The upper surface of the base is provided with a processing groove, and the inner wall of the processing groove is provided with a fixing device. The fixing device includes two through holes, and the inner walls of the two through holes are threaded with screws. The ends of the two screws that are far apart from each other are fixedly connected with round knobs. The ends of the screws that are far apart from the round knobs are rotatably connected to clamping plates. The bottom of the inner wall of the processing groove is provided with two slag discharge holes, and the inner walls of the two slag discharge holes are fixedly connected with sliding rods. The lower surface of the clamping plates is fixedly connected with two sliding plates, and the two sliding plates are slidably connected to the two sliding rods respectively. The two clamping plates are slidably connected to the processing groove.

[0007] The aforementioned components achieve the following effects: when two metal plates need to be welded together in a processing tank, they can be pressed and fixed by two clamps to prevent the metal plates from deforming due to excessive heat during welding, and they can also limit and fix metal plates of different widths and sizes.

[0008] Preferably, a plurality of rubber strips are fixedly connected to the sides of the two clamping plates that are close to each other, and the plurality of rubber strips are evenly distributed on the surface of the clamping plates.

[0009] The effect achieved by the above components is that when the metal plate is fixed by two clamps, the rubber strip can increase the friction between the clamps and the metal plate, and can also partially buffer the pressure applied by the clamps.

[0010] Preferably, a plurality of grips are fixedly connected to the arc surface of the button, and the plurality of grips are evenly distributed on the arc surface of the button.

[0011] The effect achieved by the above components is that when it is necessary to rotate the screw using the knob, the handle can be held to rotate the knob, making the operation simpler and more convenient.

[0012] Preferably, a plurality of anti-slip sleeves are fixedly connected to the arc surface of the grip, and the plurality of anti-slip sleeves are evenly distributed on the arc surface of the grip.

[0013] The effect achieved by the above components is that when the knob is rotated by the grip, the anti-slip sleeve increases the friction on the arc surface of the grip, making it less likely to slip during rotation.

[0014] Preferably, the upper surface of the base is provided with a cleaning device, the cleaning device including two guide rails, both of which are fixedly connected to the base, the upper surfaces of the two guide rails are slidably connected to the same moving plate, the upper surface of the moving plate is threadedly connected to a lead screw, one end of the lead screw is fixedly connected to a knob, the end of the lead screw away from the knob is rotatably connected to a connecting plate, and the lower surface of the connecting plate is fixedly connected to a cleaning brush.

[0015] The effect achieved by the above-mentioned components is that during the welding process of metal plates, a large amount of metal welding slag is generated. The cleaning device can be used to clean the welding slag, ensuring the cleanliness of the device and facilitating its next use.

[0016] Preferably, the knob has a plurality of arc grooves on its arc surface, and the plurality of arc grooves are evenly distributed on the arc surface of the knob.

[0017] The effect achieved by the above components is that when it is necessary to rotate the lead screw, a finger can be placed in the arc groove of the knob to rotate the lead screw, thereby making the operation more convenient.

[0018] Preferably, both ends of the guide rail are fixedly connected to limit plates, and the limit plates are fixedly connected to the base.

[0019] The effect achieved by the above components is that when the moving plate slides on the guide rail, the limiting plate restricts the sliding direction of the moving plate.

[0020] Compared with related technologies, the anti-deformation welding fixture for thin plates provided by this utility model has the following beneficial effects:

[0021] By operating the fixing device, the two metal plates can be limited and fixed when they need to be welded. This not only prevents the metal plates from being continuously deformed by heat during the welding process, but also avoids the position of the metal plates changing during the welding process, which could lead to welding errors.

[0022] By operating the cleaning device, a large amount of metal welding slag is generated during the welding of two metal plates. The metal welding slag in the processing tank can be swept to two slag discharge holes to ensure the cleanliness of the device and facilitate its next use. Attached Figure Description

[0023] Figure 1 A three-dimensional structural diagram of a thin-plate anti-deformation welding fixture provided by this utility model;

[0024] Figure 2 for Figure 1 A three-dimensional structural diagram of the fixing device is shown;

[0025] Figure 3 for Figure 2 The enlarged view at point A is shown below;

[0026] Figure 4 for Figure 1 The diagram shows a three-dimensional structure of the cleaning device.

[0027] Figure 5 for Figure 4 The diagram shows a partial structural schematic.

[0028] The following are the labels in the diagram: 1. Base; 2. Metal plate; 3. Fixing device; 301. Through hole; 302. Screw; 303. Round knob; 304. Clamping plate; 305. Slag discharge hole; 306. Slide plate; 307. Slide rod; 308. Rubber strip; 309. Handle; 310. Anti-slip sleeve; 4. Cleaning device; 41. Guide rail; 42. Moving plate; 43. Lead screw; 44. Knob; 45. Arc groove; 46. Connecting plate; 47. Cleaning brush; 48. Limiting plate; 5. Machining groove. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0030] The specific implementation of this utility model will be described in detail below with reference to specific embodiments.

[0031] Please see Figures 1 to 5 The present invention provides a thin plate anti-deformation welding fixture, comprising: a base 1 and two metal plates 2, a processing groove 5 is provided on the upper surface of the base 1, a fixing device 3 is provided on the inner wall of the processing groove 5, and a cleaning device 4 is provided on the upper surface of the base 1.

[0032] In the embodiments of this utility model, please refer to Figures 1 to 3The fixing device 3 includes two through holes 301, each with a screw 302 threadedly connected to its inner wall. A knob 303 is fixedly connected to the ends of the screws 302 that are furthest from each other. A clamping plate 304 is rotatably connected to the ends of the screws 302 furthest from the knobs 303. Two slag discharge holes 305 are formed at the bottom of the inner wall of the processing groove 5. A sliding rod 307 is fixedly connected to the inner wall of each slag discharge hole 305. Two sliding plates 306 are fixedly connected to the lower surface of the clamping plate 304. The two sliding plates 306 are slidably connected to the two sliding rods 307 respectively. Both clamping plates 304 are slidably connected to the processing groove 5. This achieves the effect of using the two clamping plates 304 to press and fix two metal plates 2 together in the processing groove 5 when they need to be welded together, preventing excessive heat during welding and thus preventing deformation of the metal plates 2, and also limiting and fixing metal plates 2 of different widths and sizes. Several rubber strips 308 are fixedly connected to the sides of the two clamping plates 304 that are close to each other. These rubber strips 308 are evenly distributed on the surface of the clamping plates 304. When the two clamping plates 304 are used to limit and fix the metal plate 2, the rubber strips 308 increase the friction between the clamping plates 304 and the metal plate 2, and also partially buffer the pressure applied by the clamping plates 304. Several grips 309 are fixedly connected to the arc surface of the round button 303. These grips 309 are evenly distributed on the arc surface of the round button 303. When it is necessary to rotate the screw 302 using the round button 303, the grips 309 can be held to rotate the round button 303, making operation simpler and more convenient. Several anti-slip sleeves 310 are fixedly connected to the arc surface of the grips 309. These anti-slip sleeves 310 are evenly distributed on the arc surface of the grips 309. When the knob 303 is rotated using the grip 309, the anti-slip sleeve 310 increases the friction on the arc surface of the grip 309, making it less likely to slip during rotation.

[0033] In the embodiments of this utility model, please refer to Figure 1 , Figure 4 and Figure 5The cleaning device 4 includes two guide rails 41, both of which are fixedly connected to the base 1. A common movable plate 42 is slidably connected to the upper surface of both guide rails 41. A lead screw 43 is threadedly connected to the upper surface of the movable plate 42. A knob 44 is fixedly connected to one end of the lead screw 43, and a connecting plate 46 is rotatably connected to the end of the lead screw 43 away from the knob 44. A cleaning brush 47 is fixedly connected to the lower surface of the connecting plate 46. This achieves the effect of cleaning the welding slag generated during the welding of the metal plate 2, ensuring the cleanliness of the device and facilitating future use. The knob 44 has several arc grooves 45 evenly distributed on its arc surface. This allows the user to place their finger in the arc grooves 45 of the knob 44 to rotate the lead screw 43, making operation more convenient. Both ends of the guide rail 41 are fixedly connected to limit plates 48, which are fixedly connected to the base 1. This ensures that when the moving plate 42 slides on the guide rail 41, the limit plates 48 restrict the sliding direction of the moving plate 42.

[0034] The working principle of the anti-deformation welding fixture for thin plates provided by this utility model is as follows: When two metal plates 2 are placed in the processing groove 5 and are to be welded, the operator can hold the anti-slip sleeve 310 of the arc-shaped handle 309 of the round button 303 and apply force to rotate the round button 303. The anti-slip sleeve 310 increases the friction of the hand to prevent slippage when rotating the screw 302 with the help of the handle 309. The round button 303 drives the screw 302 to rotate through the internal thread of the through hole 301 to advance. The two screws 302 each push the clamping plate 304 connected to the end away from the round button 303 to move horizontally towards each other. The sliding plate 306 fixed at the bottom of the clamping plate 304 slides along the sliding rod 307 on the inner wall of the slag discharge hole 305. The sliding rod 307 constrains the clamping plate 304 to maintain a straight trajectory. When the rubber strip 308 on the inner side of the two clamping plates 304 contacts the edge of the metal plate 2, the rubber strip 308 is compressed and elastically deformed to disperse the local stress. Continuous rotation of the knob 303 advances the screw 302, and the clamping plate 304 applies symmetrical compressive force to the metal plate 2 via the rubber strip 308, forcing the metal plate 2 to be precisely aligned within the processing groove 5. During welding, when the metal plate 2 expands due to heat, the elastic deformation of the rubber strip 308 absorbs the thermal displacement, maintaining a constant compressive force to prevent warping and deformation of the plate. Weld slag produced during welding falls into the processing groove 5 through the gaps in the clamping plates 304 or remains on the metal plate 2. When the clamping width needs to be adjusted, the knob 303 is rotated in the opposite direction, and the screw 302 drives the clamping plates 304 to move away from each other to release the pressure, and the rubber strip 308 returns to its original shape and disengages. After replacing the metal plate 2, the knob 303 is rotated again, and the clamping plate 304 slides along the guide rod 307 via the slide plate 306 to clamp again. The entire fixing process is achieved by rotating the knob 303 to drive the screw 302 to transmit linear thrust. The metal plate 2 is evenly clamped by the composite structure of the clamping plate 304 and the rubber strip 308. The sliding pair between the slide rod 307 and the slide plate 306 maintains the linearity of the clamping plate 304. The anti-slip sleeve 310 provides operational stability when rotating the grip 309. The rubber strip 308 plays a role in buffering pressure and preventing slippage between the metal plate 2 and the clamping plate 304, thus achieving a deformation-resistant positioning effect for thin plate welding.

[0035] When welding is complete and cleaning of the processing groove 5 and metal plate 2 is required, the operator inserts their fingers into the arc groove 45 on the arc surface of the knob 44 to apply force and rotate the knob 44. The knob 44 drives the lead screw 43 to rotate within the threaded hole of the moving plate 42. The knob 44 pushes the lead screw 43 downward, and the lead screw 43, through its own downward vertical movement, pushes the connecting plate 46 to pull the cleaning brush 47 down to contact the surfaces of the two metal plates 2. Subsequently, the moving plate 42 is manually pushed to slide horizontally along the upper surfaces of the two guide rails 41. The limiting plates 48 fixed at both ends of the guide rails 41 restrict the maximum sliding range of the moving plate 42. Then, the moving plate 42 is manually pushed repeatedly, causing the moving plate 42 to drive the cleaning brush 47 to repeatedly scrape the surface of the metal plate 2 horizontally. The cleaning brush 47 pushes the welding slag towards the slag discharge hole 305 for discharge, completing the cleaning of the surface of the metal plate 2. When cleaning the bottom surface of the processing tank 5 is required, the screw 43 is lowered by rotating the knob 44. The screw 43 changes the height of the cleaning brush 47 through the connecting plate 46, so that the cleaning brush 47 contacts the bottom surface of the processing tank 5. Then, the moving plate 42 is manually pushed again, so that the moving plate 42 moves repeatedly along the guide rail 41, driving the cleaning brush 47 to clean the processing tank 5 and push the welding slag in the inner wall of the processing tank 5 into the chip removal hole. After cleaning, the knob 44 is rotated in the opposite direction, and the knob 44 pulls the screw 43 upward. The screw 43 pulls the connecting plate 46 and the cleaning brush 47 away from the surface of the processing tank 5. The limiting plate 48 limits the maximum sliding range of the moving plate 42 and prevents it from derailing. The entire cleaning process is achieved by rotating the knob 44 to drive the screw 43 to provide lifting power, realizing the height adjustment of the cleaning brush 47. The horizontal pushing of the moving plate 42 drives the cleaning brush 47 to work. The arc groove 45 on the arc surface of the knob 44 ensures that the knob 44 will not slip during operation.

[0036] The circuits and controls involved in this utility model are all existing technologies, and will not be described in detail here.

[0037] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A sheet metal part deformation prevention welding fixture characterized by, include: A base (1) and two metal plates (2) are provided. A machining groove (5) is provided on the upper surface of the base (1). A fixing device (3) is provided on the inner wall of the machining groove (5). The fixing device (3) includes two through holes (301). A screw (302) is threadedly connected to the inner wall of each of the two through holes (301). A round button (303) is fixedly connected to the ends of the two screws (302) that are far apart from each other. The screws (302) are far apart from the round buttons (303). 3) One end is rotatably connected to a clamping plate (304). Two slag discharge holes (305) are opened at the bottom of the inner wall of the processing groove (5). Slide rods (307) are fixedly connected to the inner walls of the two slag discharge holes (305). Two sliding plates (306) are fixedly connected to the lower surface of the clamping plate (304). The two sliding plates (306) are slidably connected to the two slide rods (307) respectively. The two clamping plates (304) are slidably connected to the processing groove (5).

2. The anti-deformation welding fixture for thin plate parts according to claim 1, characterized by Several rubber strips (308) are fixedly connected to the side of the two clamping plates (304) that are close to each other, and the several rubber strips (308) are evenly distributed on the surface of the clamping plates (304).

3. The anti-deformation welding fixture for thin plates according to claim 1, characterized in that, The circular button (303) has several grips (309) fixedly connected to its arc surface, and the grips (309) are evenly distributed on the arc surface of the circular button (303).

4. The anti-deformation welding fixture for thin plate parts according to claim 3, characterized in that, The arc surface of the grip (309) is fixedly connected with several anti-slip sleeves (310), and the several anti-slip sleeves (310) are evenly distributed on the arc surface of the grip (309).

5. The anti-deformation welding fixture for thin plate parts according to claim 1, characterized by The upper surface of the base (1) is provided with a cleaning device (4). The cleaning device (4) includes two guide rails (41). Both guide rails (41) are fixedly connected to the base (1). The upper surfaces of the two guide rails (41) are slidably connected to the same moving plate (42). The upper surface of the moving plate (42) is threadedly connected to a lead screw (43). One end of the lead screw (43) is fixedly connected to a knob (44). The end of the lead screw (43) away from the knob (44) is rotatably connected to a connecting plate (46). The lower surface of the connecting plate (46) is fixedly connected to a cleaning brush (47).

6. A sheet metal part anti-distortion welding fixture according to claim 5, wherein The knob (44) has several arc grooves (45) on its arc surface, and the several arc grooves (45) are evenly distributed on the arc surface of the knob (44).

7. The anti-deformation welding fixture for thin plate parts according to claim 5, wherein Both ends of the guide rail (41) are fixedly connected to limit plates (48), and the limit plates (48) are fixedly connected to the base (1).

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