Automatic welding device capable of accurately positioning for mechanical design and manufacturing

Abstract

The invention relates to an automatic welding device capable of achieving accurate positioning for mechanical design and manufacturing. The automatic welding device comprises a base, a portal frame, a lower die groove, a side pushing block, a wedge-shaped groove, a first telescopic device, a connecting block, an L-shaped plate, an upper die, a wedge-shaped block and a welding assembly. The telescopic end of a first telescopic device extends out to drive a connecting block to descend, an upper die downwards presses a metal rectangular plate and is matched with a lower die groove to punch the rectangular plate into a U shape, then the connecting block continues to descend, two wedge-shaped blocks extrude two wedge-shaped grooves towards the inner side, two side pushing blocks move towards the inner side, and the rectangular plate is punched into a U shape. The U-shaped plate is further curled to form a cylindrical part attached to the outer surface of the upper die, the edges of the plate are welded through the welding assembly, in the welding process, the plate does not rebound and is good in stability, in the welding process, the edges of the plate are always in a parallel state, the positioning precision is high, and the quality of finished products can be improved easily.

Description

Technical Field

[0001] The present invention relates to the field of welding technology, and in particular to an automated welding device capable of precise positioning for mechanical design and manufacturing. Background Art

[0002] Welding is the process of creating a permanent bond between the atoms of workpieces (of the same or different materials) by applying heat, pressure, or both, with or without filler material. Welding is widely used for both metals and non-metals. Automation utilizes machinery, equipment, and instrumentation with automatic control, adjustment, testing, and processing capabilities, automatically performing operations according to prescribed procedures or instructions. Its purpose is to increase production, improve quality, reduce costs and labor intensity, and ensure production safety. The degree of automation has become a key indicator of a modern nation's scientific, technological, and economic development.

[0003] During the production of cylindrical parts such as cylindrical filters and pipes, sheet metal is cut into rectangular sheets of a specific size and curled into shape. The curled cylinder is then welded to ensure weld quality and stability. During the bending process, the outer layer of the sheet metal is subjected to tensile stress, while the inner layer is subjected to compressive stress. When the external force is removed, the stress releases, causing the material to generate a bending moment opposite to the bending direction, resulting in springback and poor stability. This makes it difficult for the edges of the sheets to be welded to be parallel, resulting in poor positioning accuracy and affecting the quality of the finished weld. Summary of the Invention

[0004] An embodiment of the present invention provides an automated welding device that can be precisely positioned for mechanical design and manufacturing, which can solve the problem in the prior art that during the welding of a curled cylinder, the material is prone to rebound and has poor stability, making it difficult for the edges of the plates to be welded to be in a parallel state, resulting in poor positioning accuracy and affecting the quality of the finished product after welding.

[0005] In order to solve the above technical problems, the present invention adopts the following technical solution: an automated welding device capable of precise positioning for mechanical design and manufacturing, comprising:

[0006] A support base, comprising a base and a gantry mounted on the base;

[0007] A lower die groove is provided in the middle of the upper end of the base and has a semicircular structure;

[0008] Two side push blocks, the two side push blocks are elastically connected to the two sides of the lower die groove, the two side push blocks are respectively provided with a wedge groove on the opposite sides, and the two side push blocks are respectively provided with a side pressure groove on the opposite sides, and the side pressure groove is in the shape of a quarter arc;

[0009] The movable mold assembly includes: a first telescopic device, the first telescopic device is vertically arranged on the top of the gantry; a connecting block, the connecting block is arranged at the lower end of the first telescopic device; an L-shaped plate, the L-shaped plate is elastically connected to the lower end of the connecting block; an upper mold, the upper mold is a cylindrical structure, and the upper mold is arranged on the vertical section of the L-shaped plate; two wedge blocks, the two wedge blocks are arranged on both sides of the lower end of the connecting block, and the two wedge blocks are adapted to the two wedge grooves;

[0010] A welding assembly is provided on the horizontal section of the L-shaped plate and is used for welding the edges of the plates to be welded.

[0011] Preferably, the upper end surfaces of the two side thrust blocks are provided with limiting grooves.

[0012] Preferably, an avoidance groove is provided at the lower end edge of the lower mold groove, a first guide hole connected to the avoidance groove is provided inside the base, a vertical rod is slidably connected inside the first guide hole, a top block is provided at the upper end of the vertical rod, and a first elastic member is provided between the lower end of the vertical rod and the inner bottom wall of the first guide hole.

[0013] Preferably, the upper end surface of the top block is arc-shaped.

[0014] Preferably, a discharge ring is slidably connected to the upper die, and a second telescopic device fixedly connected to the discharge ring is provided on the vertical section of the L-shaped plate.

[0015] Preferably, the welding assembly includes: a rectangular groove, which is opened at the lower end of the horizontal section of the L-shaped plate; a driving part, which is arranged at one end of the rectangular groove; a screw rod, which is rotatably connected to the inner side of the rectangular groove and fixedly connected to the output end of the driving part; a screw rod nut, which is threadedly connected to the screw rod and slidingly connected to the rectangular groove; a third telescopic device, which is arranged at the lower end of the screw rod nut; and a welding gun, which is arranged at the lower end of the third telescopic device.

[0016] Preferably, the side push block is provided with a polished rod horizontally slidably connected to the vertical portion of the gantry, a limit block is provided at the end of the polished rod, and a second elastic member is provided between the limit block and the vertical portion of the gantry.

[0017] Preferably, a guide groove is provided at the lower end of the connecting block, a slider whose lower end is fixedly connected to the L-shaped plate is vertically slidably connected to the inner side of the guide groove, and a third elastic member is provided between the slider and the inner top wall of the guide groove.

[0018] Compared with the prior art, the present invention is characterized in that the metal rectangular plate is placed centrally on the two side pushing blocks through the coordinated arrangement of the base, gantry, lower die groove, side push block, wedge groove, first telescopic device, connecting block, L-shaped plate, upper die, wedge block and welding assembly. The telescopic end of the first telescopic device extends to drive the connecting block to descend, and the upper die presses down the metal rectangular plate, and cooperates with the lower die groove to punch the rectangular plate into a U shape. Then the connecting block continues to descend, so that the two wedge blocks squeeze the two wedge grooves inward, and the two side push blocks move inward, so that the U-shaped plate is further curled to form a cylindrical part that fits the outer surface of the upper die. The welding assembly welds the edge of the plate. During the welding process, the plate will not rebound and has good stability, so that during the welding process, the edge of the plate is always in a parallel state, and the positioning accuracy is high, which is conducive to improving the quality of the finished product. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the main structure of the present invention;

[0020] Figure 2 For the present invention Figure 1 AA-axis cross-sectional structural diagram;

[0021] Figure 3 This is a schematic diagram of the main cross-sectional structure of the connecting block of the present invention;

[0022] Figure 4 This is a schematic diagram of the cross-sectional structure of the base of the present invention;

[0023] Figure 5 This is a schematic side view of the L-shaped plate structure of the present invention;

[0024] Figure 6 It is a schematic side view of the welding assembly of the present invention.

[0025] In the figure: 1. base; 2. gantry; 3. lower die groove; 4. side push block; 5. wedge-shaped groove; 6. first telescopic device; 7. connecting block; 8. L-shaped plate; 9. upper die; 10. wedge-shaped block; 11. side pressure groove; 12. limit groove; 13. avoidance groove; 14. first guide hole; 15. vertical rod; 16. top block; 17. first elastic member; 18. polished rod; 19. limit block; 20. second elastic member; 21. guide groove; 22. slider; 23. third elastic member; 24. unloading ring; 25. second telescopic device; 26. rectangular groove; 27. driving part; 28. screw rod; 29. ​​screw rod nut; 30. third telescopic device; 31. welding gun. DETAILED DESCRIPTION

[0026] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the technical solutions of the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0027] like Figures 1 to 6 As shown, an automated welding device capable of precise positioning for mechanical design and manufacturing comprises:

[0028] A support base, comprising a base 1 and a gantry 2 arranged on the base 1;

[0029] The lower die groove 3 is provided in the middle of the upper end of the base 1 and has a semicircular structure;

[0030] Two side push blocks 4, each of which is provided with a polished rod 18 horizontally slidably connected to the vertical portion of the gantry 2, a limit block 19 being provided at the end of the polished rod 18, a second elastic member 20 being provided between the limit block 19 and the vertical portion of the gantry 2, the second elastic member 20 being a spring, a wedge-shaped groove 5 being respectively provided on the opposite sides of the two side push blocks 4, and a side pressure groove 11 being respectively provided on the opposite sides of the two side push blocks 4, the side pressure groove 11 being in the shape of a quarter arc;

[0031] The movable mold assembly includes: a first telescopic device 6, which is a cylinder or a hydraulic rod and is vertically arranged on the top of the gantry 2; a connecting block 7, which is arranged at the lower end of the first telescopic device 6; an L-shaped plate 8, a guide groove 21 is provided at the lower end of the connecting block 7, and a slider 22 whose lower end is fixedly connected to the L-shaped plate 8 is vertically slidably connected to the inner side of the guide groove 21, and a third elastic member 23 is provided between the slider 22 and the inner top wall of the guide groove 21, and the third elastic member 23 is a spring; an upper mold 9, which is a cylindrical structure and is arranged on the vertical section of the L-shaped plate 8; two wedge blocks 10, which are arranged on both sides of the lower end of the connecting block 7, and the two wedge blocks 10 are adapted to the two wedge grooves 5;

[0032] The welding assembly is arranged on the horizontal section of the L-shaped plate 8 and is used to weld the edges of the plates to be welded.

[0033] When in use, the metal rectangular plate is centrally placed on the two side pushing blocks 4, the telescopic end of the first telescopic device 6 extends out to drive the connecting block 7 to descend, and the upper mold 9 presses the metal rectangular plate, cooperating with the lower mold groove 3 to punch the rectangular plate into a U shape. Then the connecting block 7 continues to descend, and the upper mold 9 no longer descends. Under the guiding action of the guide groove 21, the third elastic member 23 is compressed, causing the two wedge blocks 10 to descend and squeeze the two wedge grooves 5 inward. Under the guiding action of the light rod 18, the two side pushing blocks 4 move inward, and the two second elastic members 20 are compressed, causing the U-shaped plate to further curl to form a cylindrical part that fits the outer surface of the upper mold 9. The welding assembly welds the edge of the plate. After welding is completed, the telescopic end of the first telescopic device 6 is reset to drive the connecting block 7 to reset. The cylindrical part rises with the upper mold 9 and separates from the lower mold groove 3. The side pushing block 4 is reset under the elastic potential energy of the second elastic member 20, and the upper mold 9 is reset under the elastic potential energy of the third elastic member 23, and the cylindrical part is removed from the upper mold 9.

[0034] In order to improve the positioning accuracy, preferably, the upper end surfaces of the two side thrust blocks 4 are provided with limiting grooves 12 .

[0035] Specifically, by setting the limiting groove 12, it is convenient to place the metal rectangular plate in the center so that the weld seam of the curled cylindrical part faces upward, which is beneficial to improve the positioning accuracy, facilitate the welding of the welding assembly, and thus improve the quality of the finished product.

[0036] In order to achieve the purpose of improving positioning accuracy, preferably, an avoidance groove 13 is opened at the lower end edge of the lower mold groove 3, and a first guide hole 14 connected to the avoidance groove 13 is opened inside the base 1. The interior of the first guide hole 14 is slidably connected with a vertical rod 15, and a top block 16 is provided at the upper end of the vertical rod 15. A first elastic member 17 is provided between the lower end of the vertical rod 15 and the inner bottom wall of the first guide hole 14, and the first elastic member 17 is a spring.

[0037] Specifically, when the first elastic member 17 is in a natural state, the upper end surface of the top block 16 is flush with the inner bottom surface of the limiting groove 12. When the rectangular plate is placed on the limiting groove 12, its lower surface is in contact with the top block 16. During the curling process, the top block 16 is always in contact with the rectangular plate under the action of the elastic potential energy of the first elastic member 17, and the rectangular plate is elastically fixed between the top block 16 and the upper mold 9, avoiding dislocation of the rectangular plate during the curling process, thereby improving the positioning accuracy and the quality of the finished product.

[0038] In order to improve the positioning accuracy, preferably, the upper end surface of the top block 16 is arc-shaped.

[0039] Specifically, by setting the upper end surface of the top block 16 to an arc shape, the sheet material can fit better when in contact with the upper end surface of the top block 16, which can increase the contact area between the top block 16 and the sheet material, thereby increasing the friction force, improving the anti-skid ability of the sheet material, and improving the positioning accuracy. Secondly, the sheet material will not be deformed, thereby ensuring the quality of the finished product.

[0040] In order to achieve the purpose of automatic unloading, preferably, a unloading ring 24 is slidably connected to the upper mold 9, and a second telescopic device 25 fixedly connected to the unloading ring 24 is provided on the vertical section of the L-shaped plate 8. The second telescopic device 25 is a cylinder or a hydraulic rod.

[0041] Specifically, after welding is completed and the telescopic end of the first telescopic device 6 is reset, the telescopic end of the second telescopic device 25 extends, driving the unloading ring 24 to move along the length direction of the upper mold 9, ejecting the cylindrical parts of the upper mold 9, completing automatic unloading with a high degree of automation.

[0042] In order to achieve the purpose of automated curling and welding of rectangular plates of different thicknesses, preferably, the welding assembly includes: a rectangular groove 26, which is opened at the lower end of the horizontal section of the L-shaped plate 8; a driving part 27, which is a motor, and the driving part 27 is arranged at one end of the rectangular groove 26; a screw rod 28, which is rotatably connected to the inner side of the rectangular groove 26 and fixedly connected to the output end of the driving part 27; a screw nut 29, which is threadedly connected to the screw rod 28 and slidingly connected to the rectangular groove 26; a third telescopic device 30, which is a cylinder or a hydraulic rod, and the third telescopic device 30 is arranged at the lower end of the screw nut 29; a welding gun 31, which is arranged at the lower end of the third telescopic device 30.

[0043] Specifically, according to the thickness of the rectangular plate, the distance between the welding gun 31 and the cylindrical part is adjusted by telescoping the telescopic end of the third telescopic device 30. When the rectangular plate is curled and needs to be welded, the driving part 27 drives the screw rod 28 to rotate. Under the guidance of the rectangular groove 26, the screw nut 29 drives the welding gun 31 to move along the length direction of the upper mold 9 through the third telescopic device 30 to weld the edge of the plate. After welding is completed, the third telescopic device 30 drives the welding gun 31 to rise and reset, and the driving part 27 drives the screw rod 28 to rotate in the opposite direction and reset.

[0044] When the present invention is in use, the metal rectangular plate is placed on the limit grooves 12 on the two side push blocks 4, and its lower surface contacts the top block 16. The telescopic end of the first telescopic device 6 extends out to drive the connecting block 7 to descend, and the upper mold 9 presses the metal rectangular plate downward, cooperating with the lower mold groove 3 to punch the rectangular plate into a U shape. During the curling process, the top block 16 is always in contact with the rectangular plate under the action of the elastic potential energy of the first elastic member 17, elastically fixing the rectangular plate between the top block 16 and the upper mold 9 to avoid dislocation of the rectangular plate during the curling process. Then the connecting block 7 continues to descend, and the upper mold 9 no longer descends. Under the guiding action of the guide groove 21, the third elastic member 23 is compressed, causing the two wedge blocks 10 to descend and squeeze the two wedge grooves 5 inward. Under the guiding action of the light rod 18, the two side push blocks 4 move inward, and the two second elastic members 20 are compressed, so that the U-shaped plate is further curled to form a U-shaped plate that is aligned with the outer surface of the upper mold 9. The fitting cylindrical parts are adjusted by the telescopic end of the third telescopic device 30 to adjust the distance between the welding gun 31 and the cylindrical parts. The driving part 27 drives the screw rod 28 to rotate. Under the guiding action of the rectangular groove 26, the screw nut 29 drives the welding gun 31 to move along the length direction of the upper mold 9 through the third telescopic device 30 to weld the edge of the plate. After welding is completed, the third telescopic device 30 drives the welding gun 31 to rise and reset, and the driving part 27 drives the screw rod 28 to rotate in the opposite direction and reset. The telescopic end of the first telescopic device 6 is reset to drive the connecting block 7 to reset. The cylindrical part rises with the upper mold 9 and disengages from the lower mold groove 3. The side push block 4 is reset under the elastic potential energy of the second elastic member 20. The upper mold 9 is reset under the elastic potential energy of the third elastic member 23. The telescopic end of the second telescopic device 25 extends, driving the unloading ring 24 to move along the length direction of the upper mold 9, ejecting the cylindrical part of the upper mold 9 to complete automatic unloading.

[0045] Compared with the prior art, the present invention is provided with a base 1, a gantry 2, a lower die groove 3, a side push block 4, a wedge groove 5, a first telescopic device 6, a connecting block 7, an L-shaped plate 8, an upper die 9, a wedge block 10 and a welding assembly. The metal rectangular plate is placed centrally on the two side push blocks 4. The telescopic end of the first telescopic device 6 extends to drive the connecting block 7 to descend. The upper die 9 presses down the metal rectangular plate and cooperates with the lower die groove 3 to punch the rectangular plate into a U shape. Then the connecting block 7 continues to descend, so that the two wedge blocks 10 squeeze the two wedge grooves 5 inward, so that the two side push blocks 4 move inward, so that the U-shaped plate is further curled to form a cylindrical part that fits the outer surface of the upper die 9. The welding assembly welds the edge of the plate. During the welding process, the plate will not rebound and has good stability. Therefore, during the welding process, the edge of the plate is always in a parallel state with high positioning accuracy, which is conducive to improving the quality of the finished product.

[0046] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. An automated welding device capable of precise positioning for mechanical design and manufacturing, characterized in that: include: A support base, the support base comprising a base (1) and a gantry (2) arranged on the base (1); A lower die groove (3), the lower die groove (3) is provided in the middle of the upper end of the base (1), and the lower die groove (3) is a semicircular structure; Two side push blocks (4), the two side push blocks (4) are elastically connected to the two sides of the lower die groove (3), the two side push blocks (4) are respectively provided with a wedge groove (5) on the opposite side, and the two side push blocks (4) are respectively provided with a side pressure groove (11) on the opposite side, and the side pressure groove (11) is in the shape of a quarter arc; A movable mold assembly, comprising: a first telescopic device (6), the first telescopic device (6) being vertically arranged on the top of the gantry (2); A connecting block (7), the connecting block (7) being arranged at the lower end of the first telescopic device (6); an L-shaped plate (8), the L-shaped plate (8) being elastically connected to the lower end of the connecting block (7); an upper mold (9), the upper mold (9) being a cylindrical structure, the upper mold (9) being arranged on the vertical section of the L-shaped plate (8); two wedge-shaped blocks (10), the two wedge-shaped blocks (10) being arranged on both sides of the lower end of the connecting block (7), the two wedge-shaped blocks (10) being adapted to the two wedge-shaped grooves (5); A welding assembly is provided on the horizontal section of an L-shaped plate (8) and is used for welding the edges of plates to be welded.

2. The automated welding device capable of precise positioning for mechanical design and manufacturing according to claim 1, characterized in that: The upper end surfaces of the two side thrust blocks (4) are provided with limiting grooves (12).

3. The automated welding device capable of precise positioning for mechanical design and manufacturing according to claim 1, characterized in that: An avoidance groove (13) is provided at the lower end edge of the lower die groove (3), a first guide hole (14) connected to the avoidance groove (13) is provided inside the base (1), a vertical rod (15) is slidably connected inside the first guide hole (14), a top block (16) is provided at the upper end of the vertical rod (15), and a first elastic member (17) is provided between the lower end of the vertical rod (15) and the inner bottom wall of the first guide hole (14).

4. The automated welding device capable of precise positioning for mechanical design and manufacturing according to claim 3, characterized in that: The upper end surface of the top block (16) is arc-shaped.

5. The automated welding device capable of precise positioning for mechanical design and manufacturing according to claim 1, characterized in that: A discharge ring (24) is slidably connected to the upper die (9), and a second telescopic device (25) fixedly connected to the discharge ring (24) is provided on the vertical section of the L-shaped plate (8).

6. The automated welding device capable of precise positioning for mechanical design and manufacturing according to claim 1, characterized in that: The welding assembly comprises: a rectangular groove (26), the rectangular groove (26) being opened at the lower end of the horizontal section of the L-shaped plate (8); a driving part (27), the driving part (27) being arranged at one end of the rectangular groove (26); a screw rod (28), the screw rod (28) being rotatably connected to the inner side of the rectangular groove (26) and being fixedly connected to the output end of the driving part (27); a screw rod nut (29), the screw rod nut (29) being threadedly connected to the screw rod (28) and being slidably connected to the rectangular groove (26); a third telescopic device (30), the third telescopic device (30) being arranged at the lower end of the screw rod nut (29); and a welding gun (31), the welding gun (31) being arranged at the lower end of the third telescopic device (30).

7. The automated welding device capable of precise positioning for mechanical design and manufacturing according to claim 1, characterized in that: The side thrust block (4) is provided with a light rod (18) horizontally slidably connected to the vertical portion of the gantry (2); a limit block (19) is provided at the end of the light rod (18); and a second elastic member (20) is provided between the limit block (19) and the vertical portion of the gantry (2).

8. The automated welding device capable of precise positioning for mechanical design and manufacturing according to claim 1, characterized in that: A guide groove (21) is provided at the lower end of the connecting block (7), a slider (22) having a lower end fixedly connected to the L-shaped plate (8) is vertically slidably connected to the inner side of the guide groove (21), and a third elastic member (23) is provided between the slider (22) and the inner top wall of the guide groove (21).

Images