Sheet metal welding workbench

Abstract

The utility model aims at providing a sheet metal welding workstation, including desk frame and a plurality of fixed establishment, each fixed establishment all set up on the desk frame, and each fixed structure is common to the workpiece, and the fixed structure includes base, roof truss, push rod, lock block and elastic part, base sets up on the desk frame, roof truss slidingly sets up on the base, push rod is worn and is established on the base, and the one end of push rod is connected with roof truss rotation, push rod drives roof truss and workpiece abuts, lock block is along vertical slidingly set up on the base, and the sliding direction of lock block is perpendicular to the sliding direction of push rod, elastic part is set up on lock block, and elastic part push lock block and push rod joint, to make the sliding position of push rod adjustable. Like this, to reduce the welding operation difficulty, improve work efficiency.

Description

Technical Field

[0001] This utility model relates to the technical field of sheet metal processing, and in particular to a sheet metal welding workbench. Background Technology

[0002] In many fields such as machinery manufacturing, equipment housing processing, and hardware production, sheet metal is widely used in the fabrication of box-type structures due to its excellent plasticity, strength, and economy. These sheet metal box structures typically require bending processes to transform flat sheet metal into a three-dimensional frame with multiple sides. The joints between adjacent sides are then welded to ensure the box structure's sealing, stability, and overall strength, meeting subsequent assembly and usage requirements.

[0003] However, existing sheet metal welding methods have the following shortcomings in actual operation: During the process of bending sheet metal to form a box structure, due to the inherent physical properties of the sheet metal material, it will exhibit a certain springback effect after bending. This springback effect causes adjacent sides to not naturally maintain a tight fit, but rather have a certain gap or a slight opening angle. During sheet metal welding, the operator applies continuous pressure to the two sides of the sheet metal to be welded with one hand, forcing them to overcome the gap caused by the material's elastic springback and maintain a tight fit, while the other hand holds the welding equipment to perform the welding operation. This requires the operator to simultaneously ensure the stable application of pressure and the welding operation, ensuring sufficient and continuous pressure to prevent the sides from loosening due to pressure and creating gaps again during welding, while also precisely controlling the movement trajectory of the welding gun. Under prolonged conditions, the operator is prone to fatigue, further increasing the difficulty of operation and reducing welding efficiency. In view of this, the sheet metal welding workbench of this application is proposed. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a sheet metal welding workbench that reduces the difficulty of welding operations and improves work efficiency.

[0005] The objective of this utility model is achieved through the following technical solution: A sheet metal welding workbench, comprising: Table frame; and Several fixing mechanisms are provided, each mounted on a table frame, and all fixing mechanisms together clamp the workpiece. Each fixing mechanism includes a base, a top frame, a push rod, a locking block, and an elastic element. The base is mounted on the table frame, the top frame is slidably mounted on the base, the push rod passes through the base, and one end of the push rod is rotatably connected to the top frame. The push rod drives the top frame to abut against the workpiece. The locking block is slidably mounted vertically on the base, and the sliding direction of the locking block is perpendicular to the sliding direction of the push rod. The elastic element is sleeved on the locking block, and the elastic element pushes the locking block to engage with the push rod, so that the sliding position of the push rod is adjustable.

[0006] Optionally, the base includes a vertical block and a side block, the vertical block is disposed on the table frame, the side block is disposed on the vertical block, the top frame is slidably disposed on the vertical block, the push rod passes through the side block, and the locking block is slidably disposed on the side block.

[0007] Optionally, the top frame includes a top block and several corner blocks. The top block is slidably disposed on the upright block, and one end of the top block is rotatably connected to the push rod. Each corner block is spaced apart on the top block, and each corner block is used to abut against the workpiece.

[0008] Optionally, the side block is provided with a through hole and a sliding hole, the through hole and the sliding hole are perpendicular to each other and connected, the push rod passes through the through hole, and the locking block is slidably disposed in the sliding hole.

[0009] Optionally, the locking block includes a locking block and a screw rod. The locking block is slidably disposed in the sliding hole, the screw rod passes through the side block, and one end of the screw rod is rotatably connected to the locking block. The elastic element is sleeved on the screw rod.

[0010] Optionally, the card block is provided with screw teeth, and the push rod is provided with screw grooves, with the screw teeth and screw grooves being screwed together.

[0011] Optionally, the side block is provided with a sloping top, which is used to abut against the end of the screw rod away from the locking block.

[0012] Optionally, a limiting groove is provided on the sloping top.

[0013] Optionally, a convex rail is provided inside the sliding hole, and a groove is formed on the locking block, with the convex rail slidingly engaging with the groove.

[0014] Optionally, the fixing mechanism further includes a support block, which is adjustablely positioned on the upright block and is used to support the workpiece.

[0015] Compared with the prior art, the present invention has at least the following advantages: This utility model discloses a sheet metal welding worktable. A push rod drives the top frame to slide, and a locking block and elastic element engage in a snap-fit ​​structure. No complicated operation is required; simply pressing or pulling the locking block quickly adjusts the push rod position to achieve the clamping action. This reduces the difficulty of welding operations and improves work efficiency. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the structure of a class welding workbench according to one embodiment of the present invention; Figure 2 This is a schematic diagram of the fixing mechanism according to one embodiment of the present invention; Figure 3 for Figure 2 A partial structural diagram of A in the middle; Figure 4 for Figure 2 A schematic diagram of a partial structural section; Figure 5 This is a schematic diagram of the structure of the locking block and the push rod in one embodiment of the present invention; Figure 6 for Figure 5 A schematic diagram of the partial structure of B in the diagram; Figure 7 for Figure 5 A schematic diagram of a partial structural section; Figure 8 This is a schematic diagram of the side block according to one embodiment of the present invention; Figure 9 This is a schematic diagram of the card block according to one embodiment of the present invention; Figure 10 This is a schematic diagram of the screw rod according to one embodiment of the present invention.

[0018] Explanation of reference numerals in the attached figures: 1. Sheet metal welding workbench; 10. Table frame; 20. Base; 200. Vertical block; 2000. Slide groove; 201. Side block; 2010. Through hole; 2011. Slide hole; 20110. Convex rail; 2012. Sloping top; 2013. Limiting groove; 21. Top frame; 210. Top block; 2100. Horizontal plate; 2101. Connecting block; 2102. Connecting rod; 211. Corner block; 22. Push rod; 23. Locking block; 230. Clamping block; 2300. Threaded tooth; 23001. Groove; 231. Tightening rod; 24. Elastic component; 25. Support block; 30. Workpiece. Detailed Implementation

[0019] To facilitate understanding of this utility model, a more comprehensive description will be provided below with reference to the accompanying drawings. The drawings illustrate preferred embodiments of this utility model.

[0020] In the description of the embodiments of this utility model, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing the embodiments of this utility model 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. Therefore, they should not be construed as limitations on this utility model.

[0021] 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 one or more of that feature. In the description of embodiments of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0022] In this embodiment of the invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," 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. Those skilled in the art can understand the specific meaning of the above terms in this embodiment of the invention according to the specific circumstances.

[0023] like Figures 1 to 10As shown, in one embodiment, a sheet metal welding workbench 1 includes a table frame 10 and several fixing mechanisms. Each fixing mechanism is mounted on the table frame 10 and together they press against the workpiece 30. Each fixing mechanism includes a base 20, a top frame 21, a push rod 22, a locking block 23, and an elastic element 24. The base 20 is mounted on the table frame 10, the top frame 21 is slidably mounted on the base 20, the push rod 22 passes through the base 20, and one end of the push rod 22 is rotatably connected to the top frame 21. The push rod 22 drives the top frame 21 to abut against the workpiece 30. The locking block 23 is slidably mounted vertically on the base 20, and the sliding direction of the locking block 23 is perpendicular to the sliding direction of the push rod 22. The elastic element 24 is sleeved on the locking block 23 and pushes the locking block 23 to engage with the push rod 22, so that the sliding position of the push rod 22 is adjustable.

[0024] It should be noted that at least four fixing mechanisms are provided. Each fixing mechanism is securely installed above the table surface of the table frame 10, and each fixing mechanism is evenly distributed around the perimeter of the workpiece 30 placement area, together forming a tight and limiting state around the workpiece 30.

[0025] It should be noted that the base 20 is fixedly installed on the table frame 10 with screws. Its top has a horizontally extending groove 2000. One side of the top frame 21 has a matching slide rail, allowing the top frame 21 to slide along the groove 2000 on the base 20 to move closer to or away from the workpiece 30. The push rod 22 passes through the base 20 along the sliding direction of the slide rail, with both ends extending from opposite sides of the base 20. One end of the push rod 22 is rotatably connected to the end face of the top frame 21 away from the workpiece 30. The locking block 23 is vertically slidably mounted on the base 20, with its sliding direction perpendicular to the sliding direction of the push rod 22. The elastic element 24 is a spring structure, sleeved on the locking block 23. Both ends of the elastic element 24 abut against the locking block 23 and the base 20, respectively, causing the elastic element 24 to push the locking block 23 downwards relative to the base 20 until the locking block 23 moves away from the elastic element 24. The end face engages with the outer wall of the push rod 22, thereby locking the sliding position of the push rod 22 and making the sliding position of the push rod 22 relative to the base 20 adjustable. Specifically, when it is necessary to adjust the position of the push rod 22, the operator can pull the locking block 23 upward to compress the elastic element 24, causing the locking block 23 to disengage from the push rod 22. At this time, the push rod 22 can slide freely. After adjusting to the appropriate position, the locking block 23 is released, and the elastic element 24 restores its deformation, pushing the locking block 23 to engage with the push rod 22 again, thereby realizing the adjustable sliding position of the push rod 22. In this way, the operator drives the top frame 21 to abut against the side of the sheet metal workpiece 30 through the push rod 22, and forcibly overcomes the elasticity of the material to maintain a preset angle. Then, the elastic element 24 is used to engage the locking block 23 with the push rod 22, so that the push rod 22 remains in the state of pushing the workpiece 30. Combined with another fixing mechanism located on the adjacent side of the workpiece 30, the gap caused by the elastic rebound of the two side materials is overcome to maintain a tight fit. In this way, operators no longer need to perform the difficult action of fixing with one hand and welding with the other, improving the convenience of operation and welding efficiency. At the same time, the sliding position of the push rod 22 can be flexibly adjusted according to the different sizes of the workpiece 30, so that the clamping force of the top frame 21 on the workpiece 30 can be adapted to the sheet metal workpiece 30 of different thicknesses and sizes. This ensures that the workpiece 30 always maintains a stable limiting state during the welding process, effectively preventing the workpiece 30 from being displaced due to welding stress or external force, thereby improving the accuracy and quality of sheet metal welding and reducing rework caused by welding deviations.

[0026] like Figures 1 to 2 , Figure 5 As shown, in one embodiment, the base 20 includes a vertical block 200 and a side block 201. The vertical block 200 is disposed on the table frame 10, the side block 201 is disposed on the vertical block 200, the top frame 21 is slidably disposed on the vertical block 200, the push rod 22 passes through the side block 201, and the locking block 23 is slidably disposed on the side block 201.

[0027] It should be noted that the upright block 200 is fixedly mounted on the table frame 10 with screws, and the side block 201 is fixedly mounted on the end of the upright block 200 away from the table frame 10 with screws. The slide groove 2000 is opened on one side of the upright block 200, and the side block 201 and the slide groove 2000 are both located on the same side of the upright block 200. Furthermore, the slide rail on the top frame 21 is slidably engaged with the slide groove 2000 on the upright block 200. The push rod 22 passes through the side block 201, and one end of the push rod 22 is rotatably connected to the end of the top frame 21 away from the workpiece 30. The locking block 23 is slidably mounted on the side block 201 along the vertical direction, and the sliding direction of the locking block 23 is perpendicular to the sliding direction of the push rod 22.

[0028] As shown in the figure, in one embodiment, the top frame 21 includes a top block 210 and several corner blocks 211. The top block 210 is slidably disposed on the upright block 200, and one end of the top block 210 is rotatably connected to the push rod 22. Each corner block 211 is spaced apart on the top block 210, and each corner block 211 is used to abut against the workpiece 30.

[0029] It should be noted that the top block 210 consists of a horizontal plate 2100, a connecting block 2101, and two connecting rods 2102. One end of each connecting rod 2102 is fixedly connected to one side of the connecting block 2101, and the two connecting rods 2102 are spaced apart along the long side of the connecting block 2101. The other end of each connecting rod 2102 is fixedly connected to one side of the horizontal plate 2100, and the other end of each connecting rod 2102 is spaced apart along the short side of the horizontal plate 2100. This arrangement causes the horizontal plate 2100 to extend to both sides relative to the connecting block 2101. Furthermore, at least two slide rails are provided, and correspondingly, two slide grooves 2000 are also provided. Both slide rails are located on one side of the connecting block 2101, and each slide rail is slidably engaged with one of the two slide grooves 2000. The side of the connecting block 2101 away from the two connecting rods 2102 is rotatably connected to the push rod 22. In this way, the push rod 22 can drive the connecting block 2101 to slide closer to or away from the workpiece 30 relative to the upright block 200, and further drive the horizontal plate 2100 to slide closer to or away from the workpiece 30 simultaneously through the two connecting rods 2102. Furthermore, each corner block 211 has an L-shaped structure, and each corner block 211 is adjustablely positioned on the side of the horizontal plate 2100 away from the two connecting rods 2102. Each corner block 211 is located at one of the four corners of the horizontal plate 2100. Specifically, each corner block 211 has several continuously arranged mounting holes, so that each corner block 211 can be adjusted to extend upward and downward relative to the horizontal plate 2100 according to the actual size of the workpiece 30, thereby satisfying the clamping effect of workpieces 30 of different sizes. Since the corner block 211 has an L-shaped structure, when the horizontal plate 2100 moves each corner block 211 close to the workpiece 30, each corner block 211 together forms four fulcrums to abut against the workpiece 30, so as to avoid the protrusions on the workpiece 30 and satisfy the fixing work of different workpieces 30.

[0030] like Figures 3 to 4 , Figures 6 to 8 As shown, in one embodiment, the side block 201 is provided with a through hole 2010 and a sliding hole 2011. The through hole 2010 and the sliding hole 2011 are perpendicular to each other and connected. The push rod 22 is inserted into the through hole 2010, and the locking block 23 is slidably disposed in the sliding hole 2011.

[0031] It should be noted that the through hole 2010 is opened laterally on the side block 201, and the extension direction of the through hole 2010 is consistent with the opening direction of the slide groove 2000, so that the push rod 22 passing through the through hole 2010 can push the connecting block 2101 to slide in the slide groove 2000; furthermore, the sliding hole 2011 is opened vertically on the side block 201, and the sliding hole 2011 extends from the outer wall of the side block 201 to the through hole 2010, and is perpendicular to the through hole 2010; while the locking block 23 is slidably disposed in the sliding hole 2011, so that the sliding direction of the locking block 23 is perpendicular to the sliding direction of the push rod 22.

[0032] like Figures 1 to 7 , Figure 10 As shown, in one embodiment, the locking block 23 includes a locking block 230 and a screw rod 231. The locking block 230 is slidably disposed in the sliding hole 2011, and the screw rod 231 passes through the side block 201. One end of the screw rod 231 is rotatably connected to the locking block 230, and the elastic member 24 is sleeved on the screw rod 231.

[0033] It should be noted that the locking block 230 is slidably disposed vertically within the sliding hole 2011. Since the sliding hole 2011 is connected to the through hole 2010, the locking block 230 can slide into or away from the through hole 2010, thereby enabling the locking block 230 to engage or disengage with the push rod 22. Furthermore, one end of the screw rod 231 is rotatably connected to the end of the locking block 230 away from the through hole 2010, and the other end of the screw rod 231 extends from the outer side wall of the side block 201, making it easy for the operator to hold or apply force, so that the screw rod 231 can rotate relative to the locking block 230 around its own axis, while also driving the locking block 230 to slide along the sliding hole 2011; furthermore, the elastic element 24 is sleeved on the screw rod 231, with its two ends abutting against the locking block 230 and the side block 201 respectively, so that the elastic element 24 pushes the locking block 230 to engage with the push rod 22. In this way, the operator can pull the locking block 230 by twisting the lever 231 from the end extending from the outer side wall of the side block 201 to compress the elastic element 24, thereby disengaging the locking block 230 from the push rod 22, realizing the position adjustment of the push rod 22. Then, by releasing the lever 231, the elastic element 24 pushes and locks back into the push rod 22 under its own elastic force, thus locking the adjusted position of the push rod 22.

[0034] like Figure 4 , Figure 7 , Figure 9 As shown, in one embodiment, the locking block 230 is provided with screw teeth 2300, and the push rod 22 is provided with screw grooves, with the screw teeth 2300 being screwed into the screw grooves.

[0035] It should be noted that the end face of the locking block 230 near the through hole 2010 is a semi-circular groove structure, and the diameter of the groove structure is the same as the diameter of the through hole 2010. This allows the locking block 230 to seal the connection between the sliding hole 2011 and the through hole 2010 when it approaches the through hole 2010, and also allows the inner wall of the groove structure and the inner wall of the through hole 2010 to form a complete hole structure without gaps. Furthermore, the screw teeth 2300 are provided on the inner wall of the groove structure. The screw teeth 2300 are threaded, and the outer wall of the push rod 22 has a threaded groove. When the elastic element 24 pushes the locking block 230 close to the push rod 22, the screw teeth 2300 can fit and engage with the threaded groove to form a threaded connection. Furthermore, since the push rod 22 passes through the side block 201, the push rod 22 can slide and rotate relative to the side block 201, and the locking block 230 drives the screw teeth 2300 to engage. After the push rod 22 is engaged with the screw groove to lock the sliding position of the push rod 22 relative to the side block 201, the push rod 22 can also rotate relative to the side block 201 to drive the connecting block 2101 to slide on the upright block 200, thereby driving each corner block 211 on the horizontal plate 2100 to slowly approach the workpiece 30, or the push rod 22 drives each corner block 211 to gradually overcome the springback characteristics of the workpiece 30 material, so as to keep the two adjacent sides of the workpiece 30 in close contact, thereby facilitating the welding work of the operator.

[0036] like Figure 3 , Figures 6 to 8 As shown, in one embodiment, the side block 201 is provided with an inclined top 2012, which is used to abut against the end of the screw rod 231 away from the locking block 230.

[0037] It should be noted that the screw rod 231 is a T-shaped rod structure, with its lateral end extending from the sliding hole 2011. When the elastic element 24 pushes the locking block 230 into engagement with the push rod 22, the locking block 230 simultaneously drives the lateral end of the screw rod 231 to abut against the outer wall of the side block 201. Furthermore, two inclined tops 2012 are provided on the outer wall of the side block 201, located on opposite sides of the sliding hole 2011. In this way, the operator can rotate the lateral end of the screw rod 231, causing both sides of the lateral end of the screw rod 231 to gradually move away from the outer wall of the side block 201 along the two inclined tops 2012, thereby causing the screw rod 231 to drive the locking block 230 to compress the elastic element 24 and simultaneously move away from the push rod 22 to disengage. In this state, the push rod 22 is freed from sliding restrictions, allowing the push rod 22 to drive each corner block 211 to quickly approach or move away from the workpiece 30. Specifically, the operator first rotates the screw rod 231 along the inclined surface to disengage the locking block 230 from the push rod 22, thus releasing the sliding lock of the push rod 22. At this point, the operator can quickly bring each corner block 211 into contact with the side of the workpiece 30. Then, as the screw rod 231 is rotated past the highest position of the inclined top 2012, the elastic element 24 pushes the locking block 230, causing the screw rod 231 to slide along the inclined surface until it abuts against the outer wall of the side block 201. This allows the locking block 230 to slide closer to the push rod 22, restoring the locked state. At this point, the push rod 22 is rotated to slowly move each corner block 211 to overcome the elasticity of the workpiece 30 material, maintaining a tight fit between two adjacent sides of the workpiece 30.

[0038] like Figures 6 to 8 As shown, in one embodiment, a limiting groove 2013 is formed on the sloping top 2012.

[0039] It should be noted that a limiting groove 2013 is provided at the end of the inclined top 2012 away from the outer wall of the side block 201. The limiting groove 2013 has an arc-shaped structure, and both sides of the limiting groove 2013 have rounded corners. This allows the screw rod 231 to slide quickly into the limiting groove 2013 when it slides along the inclined surface of the inclined top 2012 to its highest position, under the push of the elastic element 24. Utilizing the arc-shaped structure of the limiting groove 2013, the rotation of the screw rod 231 is precisely restricted and kept away from the outer wall of the side block 201, thereby keeping the locking block 230 disengaged from the push rod 22. In this way, after the operator rotates the screw rod 231 into the limiting groove 2013, there is no need to manually maintain the disengagement of the locking block 230 from the push rod 22, thus improving the convenience of operation.

[0040] like Figure 3 , Figures 7 to 8As shown, in one embodiment, a convex rail 20110 is provided in the sliding hole 2011, and a groove 23001 is provided on the locking block 230, and the convex rail 20110 and the groove 23001 are slidably engaged.

[0041] It should be noted that a convex rail 20110 is provided on the inner sidewalls of the sliding hole 2011 facing each other, and the setting direction of the convex rail 20110 is consistent with the opening direction of the sliding hole 2011; while a groove 23001 is provided on the two side surfaces of the locking block 230 facing each other, and the convex rail 20110 and the groove 23001 are slidably engaged to improve the stability of the locking block 230 sliding in the sliding hole 2011.

[0042] like Figures 1 to 2 , Figure 5 As shown, in one embodiment, the fixing mechanism further includes a support block 25, which is adjustablely disposed on the upright block 200 and is used to support the workpiece 30.

[0043] It should be noted that the support block 25 is also L-shaped. One end of the support block 25 is fixed to the upright block 200 with screws, and the other end is used to support the bottom surface of the workpiece 30. Several continuously arranged mounting holes are provided on one end of the support block 25, allowing the support block 25 to be adjusted in position according to the actual size of the workpiece 30, so as to cooperate with the push rod 22 to drive the corner blocks 211 to jointly support and press the workpiece 30. Furthermore, since each fixing mechanism is equipped with a support block 25, and each support block 25 has a certain distance from the table surface of the table frame 10, after all the support blocks 25 jointly support the workpiece 30, there will also be a certain distance between the workpiece 30 and the table surface of the table frame 10. This avoids the risk of the weld seam being welded together with the table surface when the operator performs welding operations on the workpiece 30, thus improving the welding quality of the workpiece 30.

[0044] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A sheet metal welding workstation, characterized in that, include: Table frame; and Several fixing mechanisms are provided, each mounted on a table frame, and all fixing mechanisms together clamp the workpiece. Each fixing mechanism includes a base, a top frame, a push rod, a locking block, and an elastic element. The base is mounted on the table frame, the top frame is slidably mounted on the base, the push rod passes through the base, and one end of the push rod is rotatably connected to the top frame. The push rod drives the top frame to abut against the workpiece. The locking block is slidably mounted vertically on the base, and the sliding direction of the locking block is perpendicular to the sliding direction of the push rod. The elastic element is sleeved on the locking block, and the elastic element pushes the locking block to engage with the push rod, so that the sliding position of the push rod is adjustable.

2. The sheet metal welding workstation of claim 1, wherein, The base includes a vertical block and a side block. The vertical block is mounted on the table frame, the side block is mounted on the vertical block, the top frame is slidably mounted on the vertical block, the push rod passes through the side block, and the locking block is slidably mounted on the side block.

3. The sheet metal welding workbench according to claim 2, characterized in that, The top frame includes a top block and several corner blocks. The top block is slidably disposed on the upright block, and one end of the top block is rotatably connected to the push rod. Each corner block is spaced apart on the top block, and each corner block is used to abut against the workpiece.

4. The sheet metal welding workstation of claim 3, wherein, The side block has a through hole and a sliding hole, the through hole and the sliding hole are perpendicular to each other and connected, the push rod passes through the through hole, and the lock block is slidably disposed in the sliding hole.

5. The sheet metal welding workstation of claim 4, wherein, The locking block includes a locking block and a screw rod. The locking block is slidably disposed in the sliding hole, and the screw rod passes through the side block. One end of the screw rod is rotatably connected to the locking block, and the elastic element is sleeved on the screw rod.

6. The sheet metal welding workstation of claim 5, wherein, The card block is provided with screw teeth, and the push rod is provided with screw grooves, and the screw teeth are screwed into the screw grooves.

7. The sheet metal welding workbench according to claim 6, characterized in that, The side block is provided with a sloping top, which is used to abut against the end of the screw rod away from the locking block.

8. The sheet metal welding workstation of claim 7, wherein, A limiting groove is provided on the sloping top.

9. The sheet metal welding workstation of claim 5, wherein, A convex rail is provided inside the sliding hole, and a groove is formed on the locking block, with the convex rail slidingly engaging with the groove.

10. The sheet metal welding workstation of claim 2, wherein, The fixing mechanism also includes a support block, which is adjustablely positioned on the upright block and is used to support the workpiece.

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