Anti-deformation tool for thin plate welding

Abstract

The utility model provides an anti-deformation tool for sheet welding, which belongs to the technical field of tools for sheet welding and comprises a bottom plate, two first fixing blocks are symmetrically and fixedly connected to the front end of the lower end face of the bottom plate, and a first two-way screw is rotatably connected between the two first fixing blocks. And one end of the first bidirectional screw rod is fixedly connected with a first hand wheel, two first strip-shaped openings corresponding to the first bidirectional screw rod in position are symmetrically formed in the bottom plate, and first moving blocks are arranged in the first strip-shaped openings in a matched mode. Through the arrangement of the first fixing block, the first two-way screw rod, the first hand wheel, the first moving block, the second fixing block, the guide rod, the second moving block and the side plate, the position of the side plate is adjusted according to the size of a thin plate, the thin plates of different sizes can be fixed conveniently, the applicability and flexibility of the anti-deformation tool are remarkably improved, and the practicability is high. The problem that in the prior art, thin plates of different sizes are inconvenient to fix is solved.

Description

Technical Field

[0001] This utility model relates to the field of tooling technology for thin plate welding, and more specifically, to a deformation-resistant tooling for thin plate welding. Background Technology

[0002] In the manufacturing of boilers, pressure vessels, and pressure pipelines, welding procedure qualification test plates, welder qualification test plates, and flat-plate straight seam butt welding of product joints are all involved. Thin plates need to be fixed with tooling during welding.

[0003] A search revealed that patent application CN201920740818.5 discloses an anti-deformation fixture suitable for thin plate welding, comprising: a base plate on which a thin plate test piece to be welded is placed; two sets of anti-deformation fixing structures symmetrically arranged on opposite sides of the base plate with the centerline along its length as the axis; each set of anti-deformation fixing structures consists of multiple L-shaped fixing components arranged at equal intervals and fixedly installed on the upper surface of the base plate, which position and fix the thin plate test piece during welding to prevent deformation; and an inert gas back protection structure, arranged along the centerline of the base plate on the upper surface of the base plate and located between the two sets of anti-deformation fixing structures, which introduces inert gas into the inert gas back protection structure during welding to protect the back of the thin plate test piece. This utility model has a simple structure, is easy to use, effectively prevents deformation of the thin plate test piece during welding, provides inert gas back protection, is adaptable to welding in various positions, is simple to operate, has high welding efficiency, and is reusable. However, it still has the following drawbacks:

[0004] (1) In the existing technology, the anti-deformation tooling can only fix thin plates of the same width, and it is inconvenient to fix thin plates of different sizes. Its applicability and flexibility are poor.

[0005] Existing anti-deformation fixtures require rotating multiple bolts to press and fix the thin plate, which is cumbersome and results in low fixing efficiency.

[0006] Therefore, we have made improvements to this and proposed an anti-deformation tooling for thin plate welding. Utility Model Content

[0007] The purpose of this utility model is to address the current problems of inconvenience and cumbersome process of fixing thin plates of different sizes.

[0008] To achieve the above-mentioned objectives, this utility model provides the following technical solution:

[0009] Deformation-resistant tooling for thin plate welding is used to improve the above-mentioned problems.

[0010] The present invention is as follows:

[0011] The device includes a base plate. Two first fixing blocks are symmetrically and fixedly connected to the front of the lower end of the base plate. A first bidirectional screw is rotatably connected between the two first fixing blocks. A first handwheel is fixedly connected to one end of each first bidirectional screw. Two first strip-shaped openings corresponding to the positions of the first bidirectional screws are symmetrically opened on the base plate, and a first movable block is matched within each of the first strip-shaped openings. The bottom ends of the first movable blocks are threadedly connected to the first bidirectional screws. Two second fixing blocks are symmetrically and fixedly connected to the rear end of the lower end of the base plate. A guide rod is fixedly connected between the two second fixing blocks. Two second strip-shaped openings corresponding to the positions of the guide rods are opened on the base plate, and a second movable block is matched within each of the second strip-shaped openings. The bottom ends of the second movable blocks are slidably connected to the guide rods. Side plates are fixedly connected between the top ends of adjacent first and second movable blocks, and each side plate is provided with a clamping mechanism.

[0012] As a preferred technical solution of this utility model, the clamping mechanism includes mounting brackets respectively fixed to the upper surface of the side plate. The lower end of the mounting brackets is symmetrical and fixedly connected to two connecting blocks. A second bidirectional screw is rotatably connected between the two connecting blocks. Two sliders are symmetrically connected to each other by threads between the second bidirectional screws. A connecting rod is rotatably connected to the bottom end of each slider. A connecting block is rotatably connected to the bottom end of each connecting rod. A pressure plate is fixedly connected to the bottom end of the connecting block.

[0013] As a preferred technical solution of this utility model, a first gear is fixedly connected to one end of the second bidirectional screw near the second moving block. An assembly frame is fixedly connected to the upper end face of the mounting frame near the first gear. A connecting shaft is rotatably connected inside the assembly frame. A second gear that meshes with the first gear is fixedly connected to the outer end of the connecting shaft. A first bevel gear is fixedly connected to the inner end of the connecting shaft. A bearing is fixedly connected to the side wall of the assembly frame. A rotating tube is fixedly connected to the inner side wall of the bearing's inner ring. The inner end of the rotating tube passes through the side wall of the assembly frame and is fixedly connected to a second bevel gear that meshes with the first bevel gear. A splined shaft is slidably connected inside the rotating tube. Vertical plates are rotatably connected to both ends of the splined shaft. The bottom ends of the vertical plates are fixedly connected to the base plate. A second handwheel is fixedly connected to one end of the splined shaft.

[0014] As a preferred technical solution of this utility model, a rubber pad is fixedly connected to the lower end face of the pressure plate, and the bottom surface of the rubber pad is provided with anti-slip texture.

[0015] As a preferred technical solution of this utility model, the lower end face of the base plate is fixedly connected to a frame.

[0016] As a preferred technical solution of this utility model, the front end of the side plate is fixedly connected to a pointer by screws, and the front side wall of the bottom plate is provided with a scale.

[0017] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0018] In the solution of this utility model:

[0019] 1. By setting a first fixed block, a first bidirectional screw, a first handwheel, a first moving block, a second fixed block, a guide rod, a second moving block, and a side plate, the position of the side plate can be adjusted according to the size of the thin plate, which facilitates the fixing of thin plates of different sizes, significantly improves the applicability and flexibility of the anti-deformation tooling, and solves the problem of inconvenience in fixing thin plates of different sizes in the prior art;

[0020] 2. The clamping mechanism enables rapid clamping and fixing of thin plates of different thicknesses. It is easy to operate, reduces the labor intensity of operators, shortens the fixing time, improves the fixing efficiency of thin plates, and solves the problem of the cumbersome fixing of thin plates in the prior art. Attached Figure Description

[0021] Figure 1 A schematic diagram of the overall structure of this utility model;

[0022] Figure 2 This is a structural schematic diagram from another perspective of the present invention;

[0023] Figure 3 A schematic diagram of the bottom structure provided for this utility model;

[0024] Figure 4 A partial structural schematic diagram of the clamping mechanism provided by this utility model;

[0025] Figure 5 Provided by this utility model Figure 2 Enlarged view of point A in the middle;

[0026] Figure 6 This is a front view structural diagram of the present invention.

[0027] The image shows:

[0028] 1. Base plate; 2. First fixed block; 3. First double-acting screw; 4. First handwheel; 5. First moving block; 6. Second fixed block; 7. Guide rod; 8. Second moving block; 9. Side plate; 10. Clamping mechanism; 1001. Mounting bracket; 1002. Connecting block; 1003. Second double-acting screw; 1004. Slider; 1005. Connecting rod; 1006. Connecting block; 1007. Pressure plate; 1008. First gear; 1009. Assembly bracket; 1010. Connecting shaft; 1011. Second gear; 1012. First bevel gear; 1013. Bearing; 1014. Rotary tube; 1015. Second bevel gear; 1016. Splined shaft; 1017. Vertical plate; 1018. Second handwheel; 1019. Rubber pad; 11. Frame; 12. Pointer; 13. Scale. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model.

[0030] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 As shown, this embodiment proposes an anti-deformation tooling for thin plate welding, including a base plate 1. Two first fixing blocks 2 are symmetrically and fixedly connected to the front end of the lower end face of the base plate 1. A first bidirectional screw 3 is rotatably connected between the two first fixing blocks 2. A first handwheel 4 is fixedly connected to one end of the first bidirectional screw 3. Two first strip-shaped openings corresponding to the positions of the first bidirectional screw 3 are symmetrically opened on the base plate 1, and a first moving block 5 is matched and installed in each of the first strip-shaped openings. The bottom ends of the first moving blocks 5 are threadedly connected to the first bidirectional screw 3. Two second fixing blocks 6 are symmetrically and fixedly connected to the rear end face of the lower end face of the base plate 1. A guide rod 7 is fixedly connected between the two second fixing blocks 6. Two... A second strip-shaped opening corresponds to the position of the guide rod 7, and a second moving block 8 is matched in each of the second strip-shaped openings. The bottom end of the second moving block 8 is slidably connected to the guide rod 7. A side plate 9 is fixedly connected between the top ends of adjacent first moving blocks 5 and second moving blocks 8. A clamping mechanism 10 is provided on the side plate 9. By rotating the first handwheel 4, the first bidirectional screw 3 is rotated. The rotation of the first bidirectional screw 3 causes the two first moving blocks 5 to move inward or outward at the same time, thereby driving the two side plates 9 to move inward or outward at the same time. This facilitates the adjustment of the position of the side plates 9, makes it convenient to fix thin plates of different widths, and improves the flexibility and applicability of the anti-deformation tooling.

[0031] like Figure 1 , Figure 2 , Figure 4 and Figure 5 As shown, in a preferred embodiment, based on the above method, the clamping mechanism 10 further includes a mounting bracket 1001 fixed to the upper surface of the side plate 9. The lower end of the mounting bracket 1001 is symmetrically and fixedly connected to two connecting blocks 1002. A second bidirectional screw 1003 is rotatably connected between the two connecting blocks 1002. Two sliders 1004 are symmetrically and threadedly connected between the second bidirectional screws 1003. A connecting rod 1005 is rotatably connected to the bottom end of each slider 1004. A connecting block 1006 is rotatably connected to the bottom end of each connecting rod 1005. A pressure plate 1007 is fixedly connected to the bottom end of the connecting block 1006. The rotation of the second bidirectional screw 1003 can cause the two sliders 1004 to move inward or outward simultaneously. The movement of the sliders 1004 can drive the connecting rods 1005 to move, thereby adjusting the height of the pressure plate 1007, realizing the clamping or loosening of the thin plate, and quickly clamping and fixing the thin plate.

[0032] like Figure 1 , Figure 2 , Figure 4 and Figure 5As shown, in a preferred embodiment, based on the above method, further, a first gear 1008 is fixedly connected to one end of the second bidirectional screw 1003 near the second moving block 8; an assembly frame 1009 is fixedly connected to the upper end face of the mounting frame 1001 near the first gear 1008; a connecting shaft 1010 is rotatably connected inside the assembly frame 1009; a second gear 1011, meshing with the first gear 1008, is fixedly connected to the outer end of the connecting shaft 1010; a first bevel gear 1012 is fixedly connected to the inner end of the connecting shaft 1010; a bearing 1013 is fixedly connected to the side wall of the assembly frame 1009; a rotating tube 1014 is fixedly connected to the inner side wall of the inner ring of the bearing 1013; the inner end of the rotating tube 1014 penetrates the side wall of the assembly frame 1009 and is fixedly connected to a second bevel gear 1015, meshing with the first bevel gear 1012; the rotating tube 101... A splined shaft 1016 is slidably connected within the 4-section. Both ends of the splined shaft 1016 are rotatably connected to vertical plates 1017. The bottom ends of the vertical plates 1017 are fixedly connected to the base plate 1. A second handwheel 1018 is fixedly connected to one end of the splined shaft 1016. Rotating the second handwheel 1018 can drive the splined shaft 1016 to rotate. The rotation of the splined shaft 1016 can drive the rotating tube 1014 and the second bevel gear 1015 to rotate. The rotation of the second bevel gear 1015 can drive the first bevel gear 1012, the connecting shaft 1010, and the second gear 1011 to rotate. The rotation of the second gear 1011 can drive the first gear 1008 and the second double-acting screw 1003 to rotate, thereby driving the two second double-acting screws 1003 to rotate simultaneously. This facilitates operation, eliminates the need to use multiple bolts to fix the thin plate, and improves the efficiency and convenience of fixing.

[0033] like Figure 1 and Figure 4 As shown, in a preferred embodiment, based on the above method, a rubber pad 1019 is fixedly connected to the lower end face of the pressure plate 1007, and the bottom surface of the rubber pad 1019 is provided with anti-slip texture; this can increase the friction between the pressure plate 1007 and the thin plate, prevent the thin plate from sliding during the pressing process, and at the same time, the rubber pad 1019 can also protect the surface of the thin plate.

[0034] like Figure 1 and Figure 2 As shown, in a preferred embodiment, based on the above method, a frame 11 is further fixedly connected to the lower end face of the base plate 1; the frame 11 is used to support the entire tooling and ensure the stability of the tooling during operation.

[0035] like Figure 1 and Figure 6As shown, in a preferred embodiment, based on the above method, the front end of the side plate 9 is further fixedly connected to the pointer 12 by screws, and the front side wall of the base plate 1 is provided with a scale 13; by observing the position of the pointer 12 on the scale 13, the horizontal movement distance of the side plate 9 can be intuitively understood, thereby realizing the precise adjustment and positioning of the welding position of the thin plate.

[0036] Specifically, when using this anti-deformation fixture for thin plate welding: First, adjust the position of the side plate 9 according to the width of the thin plate. Rotate the first handwheel 4 to rotate the first bidirectional screw 3. The rotation of the first bidirectional screw 3 causes the two first moving blocks 5 to move inward or outward simultaneously, thereby driving the two side plates 9 to move inward or outward simultaneously. Adjust the position of the side plates 9, and observe that the scale 13 indicated by the pointer 12 reaches the target distance. Stop rotating the first handwheel 4, place the thin plate between the base plate 1 and the side plate 9, and rotate the second handwheel 1018 to drive the spline shaft 1016 to rotate. The rotation of the key shaft 1016 drives the rotating tube 1014 and the second bevel gear 1015 to rotate. The rotation of the second bevel gear 1015 drives the first bevel gear 1012, the connecting shaft 1010 and the second gear 1011 to rotate. The rotation of the second gear 1011 drives the first gear 1008 and the second bidirectional screw 1003 to rotate. The rotation of the second bidirectional screw 1003 causes the two sliders 1004 to move inward at the same time, which in turn causes the connecting rod 1005 to move, which in turn causes the pressure plate 1007 and the rubber pad 1019 to descend, thereby pressing and fixing the thin plate. The operation is convenient.

[0037] All technical features in this embodiment can be freely combined according to actual needs.

[0038] The above embodiments are preferred implementations of this utility model. In addition, this utility model can also be implemented in other ways. Any obvious substitutions without departing from the concept of this technical solution are within the protection scope of this utility model.

Claims

1. A deformation preventing jig for sheet metal welding, comprising a base plate (1), characterized in that, The lower end of the base plate (1) has two first fixing blocks (2) symmetrically and fixedly connected to its front end. A first bidirectional screw (3) is rotatably connected between the two first fixing blocks (2). A first handwheel (4) is fixedly connected to one end of the first bidirectional screw (3). Two first strip-shaped openings corresponding to the positions of the first bidirectional screw (3) are symmetrically opened on the base plate (1), and a first moving block (5) is matched in each of the first strip-shaped openings. The bottom ends of the first moving blocks (5) are threadedly connected to the first bidirectional screw (3). The lower end of the base plate (1) The end face is symmetrical and fixedly connected to two second fixing blocks (6). A guide rod (7) is fixedly connected between the two second fixing blocks (6). Two second strip openings corresponding to the positions of the guide rods (7) are opened on the bottom plate (1). A second moving block (8) is matched in each of the second strip openings. The bottom end of the second moving block (8) is slidably connected to the guide rod (7). A side plate (9) is fixedly connected between the top ends of the adjacent first moving block (5) and second moving block (8). A pressing mechanism (10) is provided on the side plate (9).

2. The anti-deformation tooling for thin plate welding according to claim 1, wherein The clamping mechanism (10) includes a mounting bracket (1001) fixed to the upper surface of the side plate (9). The lower end of the mounting bracket (1001) is symmetrical and fixedly connected to two connecting blocks (1002). A second bidirectional screw (1003) is rotatably connected between the two connecting blocks (1002). Two sliders (1004) are symmetrically connected between the second bidirectional screws (1003) and threadedly connected. A connecting rod (1005) is rotatably connected to the bottom end of each slider (1004). A connecting block (1006) is rotatably connected to the bottom end of each connecting rod (1005). A pressure plate (1007) is fixedly connected to the bottom end of the connecting block (1006).

3. The anti-deformation tooling for thin plate welding according to claim 2, characterized in that, The second bidirectional screw (1003) is fixedly connected to a first gear (1008) at one end near the second moving block (8). An assembly frame (1009) is fixedly connected to the upper end face of the mounting bracket (1001) near the first gear (1008). A connecting shaft (1010) is rotatably connected inside the assembly frame (1009). A second gear (1011) meshing with the first gear (1008) is fixedly connected to the outer end of the connecting shaft (1010). A first bevel gear (1012) is fixedly connected to the inner end of the connecting shaft (1010). A shaft is fixedly connected to the side wall of the assembly frame (1009). The bearing (1013) has a rotating tube (1014) fixedly connected to the inner side wall of the inner ring. The inner end of the rotating tube (1014) passes through the side wall of the assembly frame (1009) and is fixedly connected to a second bevel gear (1015) that meshes with the first bevel gear (1012). A spline shaft (1016) is slidably connected inside the rotating tube (1014). Both ends of the spline shaft (1016) are rotatably connected to a vertical plate (1017). The bottom end of the vertical plate (1017) is fixedly connected to the base plate (1). A second handwheel (1018) is fixedly connected to one end of the spline shaft (1016).

4. The anti-deformation tooling for thin plate welding according to claim 2, wherein A rubber pad (1019) is fixedly connected to the lower end face of the pressure plate (1007), and the bottom surface of the rubber pad (1019) is provided with anti-slip texture.

5. The anti-deformation tooling for thin plate welding according to claim 1, wherein The lower end face of the base plate (1) is fixedly connected to the frame (11).

6. The anti-deformation tooling for thin plate welding according to claim 1, characterized in that, The front end of the side plate (9) is fixedly connected to a pointer (12) by screws, and the front side wall of the base plate (1) is provided with a scale (13).

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