Steel plate welding positioning equipment for steel door

Abstract

The invention relates to the technical field of welding, in particular to steel plate welding positioning equipment for a steel door, the output end of a pushing electric cylinder is fixedly connected with a mounting top plate, the bottom of the mounting top plate is fixedly connected with two mounting column blocks, and two connecting plates are fixedly connected between the two mounting column blocks; a mounting bottom plate is fixedly connected to the bottom of the connecting plate, a mounting bottom shaft is fixedly connected to the bottom of the mounting bottom plate, four mounting cylinders are rotationally connected to the outer side of the mounting bottom shaft, a downward pressing torsion spring is mounted between each mounting cylinder and the mounting bottom shaft, and downward pressing plates are fixedly connected to the outer sides of the two mounting cylinders at the two ends; according to the steel plate welding and positioning device, the problems that a traditional steel plate welding and positioning mode is inaccurate in positioning, tedious in operation and the like are solved, the welding efficiency and the welding quality are remarkably improved, accurate positioning and stable clamping of a steel plate are achieved through a series of ingeniously-designed mechanical structures, and powerful support is provided for welding operation.

Description

Technical Field

[0001] The present invention relates to the technical field of welding, and particularly to a steel plate welding positioning device for steel doors. Background Art

[0002] When welding steel plates for steel doors, it is necessary to perform chamfering on the inclined surface at the joint of the steel plates and weld at the chamfered position. In this way, the welded joint will not be abrupt, which affects the aesthetics, and can also improve the connection strength and welding quality of the steel plates. However, traditional steel plate welding positioning methods often have problems such as inaccurate positioning and cumbersome operation, which affect the welding efficiency and welding quality.

[0003] To solve the above problems, the present invention proposes a steel plate welding positioning device for steel doors. Summary of the Invention

[0004] The purpose of the present invention is to provide a steel plate welding positioning device for steel doors to solve the problems raised in the above background art.

[0005] The technical solution of the present invention is: a steel plate welding positioning device for steel doors, including a pushing electric cylinder and a support plate. The output end of the pushing electric cylinder is fixedly connected with an installation top plate. Two installation column blocks are fixedly connected to the bottom of the installation top plate. Two connecting plates are fixedly connected between the two installation column blocks. The bottom of the connecting plate is fixedly connected with an installation bottom plate. The bottom of the installation bottom plate is fixedly connected with an installation bottom shaft. Four installation cylinders are rotatably connected to the outside of the installation bottom shaft. A downward pressure torsion spring is installed between each installation cylinder and the installation bottom shaft. Lower pressing plates are fixedly connected to the outside of the two installation cylinders at both ends. A lower pressing shaft is fixedly connected to the inside of the lower pressing plate. A lower pressing block is rotatably connected to the outside of the lower pressing shaft. A rubber plate is fixedly connected to the bottom of the lower pressing block. A lower pressing strip is fixedly connected to the outside of the two installation cylinders in the middle. The bottom end of the lower pressing strip is fixedly connected with a lower pressing ring. A lower pressing roller is rotatably connected to the inside of the lower pressing ring. The rubber plates at the bottoms of the two installation bottom plates tend to approach each other, and the lower pressing rollers at the bottoms of the two installation bottom plates tend to move away from each other. One end of the installation top plate is fixedly connected with an installation side plate. A moving motor is fixedly connected to one side of the installation side plate. The output end of the moving motor is fixedly connected with a moving threaded rod. A welding box is threadedly connected to the outside of the moving threaded rod; when in use: by extending the pushing electric cylinder, the installation top plate is pushed downward, so that the rubber plate and the lower pressing roller are closely attached to the top surfaces of the two door steel plates. Because the rubber plates tend to approach each other, when pressing downward continuously, the two door steel plates will be pushed to approach each other, twisting the downward pressure torsion spring to make the two door steel plates closely attached. The lower pressing roller fixes the other side to prevent one end of the door steel plate from warping. By starting the moving motor, the moving threaded rod rotates. The welding box is limited by the bottom of the installation top plate, so that the welding box moves on the moving threaded rod, and the welding interface at the bottom of the welding box approaches the interface of the two door steel plates for welding. By moving, the interface can be perfectly welded.

[0006] Preferably, a width adjustment bar is fixedly connected to the top of the support plate. A support inner shaft is slidably clamped inside the width adjustment bar. Fixed side plates are fixedly connected to both ends of the support inner shaft. A central ring is rotatably connected to the middle of the outer side of the support inner shaft. A support cylinder is fixedly connected to the outer side of the central ring. Two width sliding cylinders are slidably clamped inside the support cylinder. A width expansion spring is fixedly connected between the width sliding cylinder and the central ring. One end of the width sliding cylinder away from the width expansion spring is fixedly connected to the width adjustment bar. An installation outer cylinder is fixedly connected to the top of the width adjustment bar. A thickness column is slidably clamped inside the installation outer cylinder. A thickness expansion spring is arranged at the bottom of the thickness column and is installed inside the installation outer cylinder. A thickness pressing shaft is fixedly connected to one side of the thickness column. A thickness pressing roller is rotatably connected to the outer side of the thickness pressing shaft. A fixed side frame is fixedly connected to the top of the fixed side plate. An inner pressing plate is fixedly connected inside the fixed side frame. An inner pressing low block is slidably clamped inside the fixed side frame. An inner pressing inclined block is fixedly connected to the top of the inner pressing low block. An inner pressing spring is installed between the inner pressing plate and the inner pressing inclined block. An inner inserting bar is fixedly connected to one end of the inner pressing low block. A pressing bar is fixedly connected to the bottom of the installation column block. One side of the pressing bar is an inclined surface and fits with the inclined surface of the inner pressing inclined block. A door steel plate is placed on the top of the inner pressing spring. The door steel plate is located at the bottom of the thickness pressing roller. When in use: By placing the door steel plate on the top of the support cylinder, clamping both ends inside the installation outer cylinder, pulling the width expansion springs on both sides, making the two width sliding cylinders move away from each other along the support inner shaft, and the top is connected to the bottom of the thickness pressing roller. Pulled by the thickness expansion spring, the thickness pressing roller is closely attached to the top of the door steel plate, so as to adapt to door steel plates of different sizes and widths. By moving the installation top plate up and down, the pressing bar is used to push the inner pressing inclined block to move along the inclined surface, squeezing the inner pressing spring, and making the inner inserting bar insert into the bottom chamfer of the two door steel plates, so as to prevent the welding interfaces of the two door steel plates from not aligning with the welding box before welding.

[0007] The present invention provides a steel door steel plate welding positioning device through improvement. Compared with the prior art, it has the following improvements and advantages:

[0008] First: For the steel door steel plate welding positioning device of the present invention, by extending the pushing electric cylinder and pushing down the installation top plate, the rubber plate and the pressing roller are closely attached to the top surfaces of the two door steel plates. Because the rubber plate has a tendency to approach each other, when continuing to press down, it will push the two door steel plates to approach each other, twist the pressing torsion spring, and make the two door steel plates closely attached. The pressing roller fixes the other side to prevent one end of the door steel plate from warping. By starting the moving motor, the moving threaded rod rotates. The welding box is limited by the bottom of the installation top plate, so that the welding box moves up and down on the moving threaded rod, and the bottom welding interface of the welding box approaches the interface of the two door steel plates for welding. Through movement, the interface can be perfectly welded;

[0009] Second: For a steel door steel plate welding positioning device described in the present invention, by placing the door steel plate on the top of the support cylinder, with both ends clamped inside the installation outer cylinder, pulling the width expansion springs on both sides, the two width sliding cylinders move away from each other along the support inner shaft, and the top is pulled by the thickness expansion spring to make the thickness pressing roller closely adhere to the top of the door steel plate, so as to adapt to door steel plates of different sizes and widths. By moving the installation top plate up and down, the inner pressing inclined block is pushed by the lower pressing strip to move along the inclined plane, squeezing the inner pressing spring, and the inner insertion strip is inserted into the bottom chamfer of the two door steel plates, preventing the weld joints of the two door steel plates from not aligning with the welding box before welding;

[0010] Summary: A steel door steel plate welding positioning device described in the present invention not only solves the problems of inaccurate positioning and cumbersome operation existing in the traditional steel plate welding positioning method, but also significantly improves the welding efficiency and welding quality. Through a series of ingeniously designed mechanical structures, the device realizes the precise positioning and stable clamping of the steel plate, providing strong support for the welding operation. Brief Description of the Drawings

[0011] The following further explains the present invention in conjunction with the drawings and embodiments:

[0012] Figure 1 is the three-dimensional structure schematic diagram of the present invention;

[0013] Figure 2 is the structure schematic diagram of the installation top plate of the present invention;

[0014] Figure 3 is the structure schematic diagram of the connecting plate of the present invention;

[0015] Figure 4 is the structure schematic diagram of the installation bottom plate of the present invention;

[0016] Figure 5 is the structure schematic diagram of the door steel plate of the present invention;

[0017] Figure 6 is the structure schematic diagram of the support inner shaft of the present invention;

[0018] Figure 7 is the structure schematic diagram of the thickness column of the present invention;

[0019] Figure 8 is the structure schematic diagram of the inner insertion strip of the present invention.

[0020] Explanation of the Reference Numerals in the Drawings:

[0021] 1. Push cylinder; 2. Support plate; 3. Installation top plate; 4. Installation side plate; 5. Width adjustment strip; 6. Fixed side plate; 7. Installation column block; 8. Pressing strip; 9. Moving motor; 10. Moving threaded rod; 11. Welding box; 12. Connecting plate; 13. Installation bottom plate; 14. Installation bottom shaft; 15. Pressing torsion spring; 16. Installation cylinder; 17. Lower pressing plate; 18. Lower pressing shaft; 19. Lower pressing block; 20. Rubber plate; 21. Pressing strip; 22. Pressing ring; 23. Pressing roller; 24. Support inner shaft; 25. Door steel plate; 26. Central ring; 27. Support cylinder; 28. Width expansion spring; 29. Width sliding cylinder; 30. Installation outer cylinder; 31. Thickness expansion spring; 32. Thickness column; 33. Thickness pressing shaft; 34. Thickness pressing roller; 35. Fixed side frame; 36. Inner pressing plate; 37. Inner pressing spring; 38. Inner pressing inclined block; 39. Inner pressing low block; 40. Inner inserting strip. Detailed implementation manner

[0022] The present invention will be described in detail below. The technical solutions in the embodiments of the present invention are clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0023] The present invention provides a steel plate welding positioning device for steel doors by improvement. The technical solution of the present invention is as follows:

[0024] As Figures 1-8As shown in the figure, a steel plate welding positioning device for steel doors includes a pushing electric cylinder 1 and a support plate 2. The output end of the pushing electric cylinder 1 is fixedly connected to an installation top plate 3. The bottom of the installation top plate 3 is fixedly connected to two installation column blocks 7. Two connecting plates 12 are fixedly connected between the two installation column blocks 7. The bottom of the connecting plate 12 is fixedly connected to an installation bottom plate 13. The bottom of the installation bottom plate 13 is fixedly connected to an installation bottom shaft 14. Four installation cylinders 16 are rotatably connected to the outside of the installation bottom shaft 14. A downward pressure torsion spring 15 is installed between each installation cylinder 16 and the installation bottom shaft 14. The outside of the two installation cylinders 16 at both ends is fixedly connected to a lower pressing plate 17. The inner side of the lower pressing plate 17 is fixedly connected to a lower pressing shaft 18. A lower pressing block 19 is rotatably connected to the outside of the lower pressing shaft 18. The bottom of the lower pressing block 19 is fixedly connected to a rubber plate 20. The outside of the two middle installation cylinders 16 is fixedly connected to a lower pressing strip 21. The bottom end of the lower pressing strip 21 is fixedly connected to a lower pressing ring 22. A lower pressing roller 23 is rotatably connected to the inside of the lower pressing ring 22. The rubber plates 20 at the bottom of the two installation bottom plates 13 tend to approach each other, and the lower pressing rollers 23 at the bottom of the two installation bottom plates 13 tend to move away from each other. One end of the installation top plate 3 is fixedly connected to an installation side plate 4. One side of the installation side plate 4 is fixedly connected to a moving motor 9. The output end of the moving motor 9 is fixedly connected to a moving threaded rod 10. A welding box 11 is threadedly connected to the outside of the moving threaded rod 10; during use: by extending the pushing electric cylinder 1, the installation top plate 3 is pushed downwards, so that the rubber plate 20 and the lower pressing roller 23 are closely attached to the top surfaces of the two door steel plates 25. Because the rubber plates 20 tend to approach each other, when further pressing downwards, the two door steel plates 25 will be pushed to approach each other, twisting the downward pressure torsion spring 15 to make the two door steel plates 25 closely attached. The lower pressing roller 23 fixes the other side to prevent one end of the door steel plate 25 from warping. By starting the moving motor 9, the moving threaded rod 10 rotates. The welding box 11 is limited by the bottom of the installation top plate 3, so that the welding box 11 moves on the moving threaded rod 10, and the welding interface at the bottom of the welding box 11 approaches the interface of the two door steel plates 25 for welding. By moving, the interface can be perfectly welded.

[0025] Further, a width adjustment strip 5 is fixedly connected to the top of the support plate 2. A support inner shaft 24 is slidably clamped inside the width adjustment strip 5. Fixed side plates 6 are fixedly connected to both ends of the support inner shaft 24. A central ring 26 is rotatably connected to the middle of the outer side of the support inner shaft 24. A support cylinder 27 is fixedly connected to the outer side of the central ring 26. Two width sliding cylinders 29 are slidably clamped inside the support cylinder 27. A width expansion spring 28 is fixedly connected between the width sliding cylinder 29 and the central ring 26. One end of the width sliding cylinder 29 away from the width expansion spring 28 is fixedly connected to the width adjustment strip 5. An installation outer cylinder 30 is fixedly connected to the top of the width adjustment strip 5. A thickness column 32 is slidably clamped inside the installation outer cylinder 30. A thickness expansion spring 31 is arranged at the bottom of the thickness column 32 and is installed inside the installation outer cylinder 30. A thickness pressing shaft 33 is fixedly connected to one side of the thickness column 32. A thickness pressing roller 34 is rotatably connected to the outer side of the thickness pressing shaft 33. A fixed side frame 35 is fixedly connected to the top of the fixed side plate 6. An inner pressing plate 36 is fixedly connected inside the fixed side frame 35. An inner pressing low block 39 is slidably clamped inside the fixed side frame 35. An inner pressing inclined block 38 is fixedly connected to the top of the inner pressing low block 39. An inner pressing spring 37 is installed between the inner pressing plate 36 and the inner pressing inclined block 38. An inner inserting strip 40 is fixedly connected to one end of the inner pressing low block 39. A pressing strip 8 is fixedly connected to the bottom of the installation column block 7. One side of the pressing strip 8 is inclined and fits with the inclined surface of the inner pressing inclined block 38. A door steel plate 25 is placed on the top of the inner pressing spring 37, and the door steel plate 25 is located at the bottom of the thickness pressing roller 34. During use: By placing the door steel plate 25 on the top of the support cylinder 27 and clamping both ends inside the installation outer cylinder 30, pulling the width expansion springs 28 on both sides to make the two width sliding cylinders 29 move away from each other along the support inner shaft 24, and the top is at the bottom of the thickness pressing roller 34. Pulled by the thickness expansion spring 31, the thickness pressing roller 34 is tightly attached to the top of the door steel plate 25, so as to adapt to door steel plates 25 of different sizes and widths. By moving the installation top plate 3 up and down, the inner pressing inclined block 38 is pushed along the inclined surface by the pressing strip 8, squeezing the inner pressing spring 37, so that the inner inserting strip 40 is inserted into the bottom chamfer of the two door steel plates 25 to prevent the welding interfaces of the two door steel plates 25 from not being aligned with the welding box 11 before welding.

[0026] Working principle: When in use: By extending the driving electric cylinder 1, the mounting top plate 3 is pushed downwards, so that the rubber plate 20 and the lower pressing roller 23 are closely attached to the top surface of the two door steel plates 25. Because the rubber plate 20 has a tendency to approach each other, when further pressed down, it will push the two door steel plates 25 to approach each other, twist the lower pressing torsion spring 15, and make the two door steel plates 25 closely attached. The lower pressing roller 23 is fixed on the other side to prevent one end of the door steel plate 25 from tilting. By starting the moving motor 9, the moving threaded rod 10 rotates, and the welding box 11 is limited by the bottom of the mounting top plate 3, so that the welding box 11 moves on the moving threaded rod 10, and the welding interface at the bottom of the welding box 11 approaches the interface of the two door steel plates 25 for welding. By moving, the interface can be perfectly welded. By placing the door steel plate 25 on the top of the support cylinder 27 and clamping both ends inside the mounting outer cylinder 30, pulling the width expansion springs 28 on both sides, the two width sliding cylinders 29 move away from each other along the support inner shaft 24, and the top is connected to the bottom of the thickness pressing roller 34. Pulled by the thickness expansion spring 31, the thickness pressing roller 34 is closely attached to the top of the door steel plate 25, so as to adapt to door steel plates 25 of different sizes and widths. By moving the mounting top plate 3 up and down, the inner pressing inclined block 38 is pushed along the inclined surface by the lower pressing strip 8, squeezing the inner pressing spring 37, so that the inner inserting strip 40 is inserted into the bottom chamfer of the two door steel plates 25 to prevent the welding interfaces of the two door steel plates 25 from not being aligned with the welding box 11 before welding.

[0027] The above description enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be obvious to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to these embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A steel plate welding positioning device for a steel door, comprising a pushing electric cylinder (1) and a support plate (2), characterized in that: The output end of the driving electric cylinder (1) is fixedly connected with a mounting top plate (3). The bottom of the mounting top plate (3) is fixedly connected with two mounting column blocks (7). Two connecting plates (12) are fixedly connected between the two mounting column blocks (7). The bottom of the connecting plate (12) is fixedly connected with a mounting bottom plate (13). The bottom of the mounting bottom plate (13) is fixedly connected with a mounting bottom shaft (14). Four mounting cylinders (16) are rotatably connected to the outside of the mounting bottom shaft (14). A downward pressure torsion spring (15) is installed between each mounting cylinder (16) and the mounting bottom shaft (14). The outside of the two mounting cylinders (16) at both ends is fixedly connected with a downward pressure plate (17). The inside of the downward pressure plate (17) is fixedly connected with a downward pressure shaft (18). The outside of the downward pressure shaft (18) is rotatably connected with a downward pressure block (19). The bottom of the downward pressure block (19) is fixedly connected with a rubber plate (20). A downward pressure strip (21) is fixedly connected to the outside of the two middle mounting cylinders (16).

2. The steel plate welding and positioning device for steel doors according to claim 1, characterized in that: The bottom end of the downward pressure strip (21) is fixedly connected with a downward pressure ring (22). A downward pressure roller (23) is rotatably connected to the inside of the downward pressure ring (22). The rubber plates (20) at the bottom of the two mounting bottom plates (13) tend to approach each other, and the downward pressure rollers (23) at the bottom of the two mounting bottom plates (13) tend to move away from each other.

3. A steel plate welding positioning device for steel doors according to claim 2, characterized in that: One end of the mounting top plate (3) is fixedly connected with a mounting side plate (4). A moving motor (9) is fixedly connected to one side of the mounting side plate (4). The output end of the moving motor (9) is fixedly connected with a moving threaded rod (10). A welding box (11) is threadedly connected to the outside of the moving threaded rod (10).

4. A steel plate welding and positioning device for steel doors according to claim 3, characterized in that: A width adjustment strip (5) is fixedly connected to the top of the support plate (2). A support inner shaft (24) is slidably clamped inside the width adjustment strip (5). Fixed side plates (6) are fixedly connected to both ends of the support inner shaft (24). A center ring (26) is rotatably connected to the middle of the outside of the support inner shaft (24). A support cylinder (27) is fixedly connected to the outside of the center ring (26). Two width sliding cylinders (29) are slidably clamped inside the support cylinder (27). A width expansion spring (28) is fixedly connected between the width sliding cylinder (29) and the center ring (26). The end of the width sliding cylinder (29) away from the width expansion spring (28) is fixedly connected to the width adjustment strip (5).

5. A steel plate welding and positioning device for steel doors according to claim 4, characterized in that: An installation outer cylinder (30) is fixedly connected to the top of the width adjustment strip (5). A thickness column (32) is slidably clamped inside the installation outer cylinder (30). A thickness expansion spring (31) is arranged at the bottom of the thickness column (32), and the thickness expansion spring (31) is installed inside the installation outer cylinder (30). A thickness pressing shaft (33) is fixedly connected to one side of the thickness column (32). A thickness pressing roller (34) is rotatably connected to the outside of the thickness pressing shaft (33).

6. A steel plate welding positioning device for a steel door according to claim 5, characterized in that: The top of the fixed side plate (6) is fixedly connected with a fixed side frame (35). An inner pressing plate (36) is fixedly connected inside the fixed side frame (35). An inner pressing low block (39) is slidably clamped inside the fixed side frame (35). The top of the inner pressing low block (39) is fixedly connected with an inner pressing inclined block (38). An inner pressing spring (37) is installed between the inner pressing plate (36) and the inner pressing inclined block (38). One end of the inner pressing low block (39) is fixedly connected with an inner insertion bar (40). The bottom of the installation column block (7) is fixedly connected with a downward pressing bar (8). One side of the downward pressing bar (8) is an inclined surface and is in fit with the inclined surface of the inner pressing inclined block (38).

7. A steel plate welding and positioning device for steel doors according to claim 6, characterized in that: A door steel plate (25) is placed on the top of the inner pressing spring (37). The door steel plate (25) is located at the bottom of the thickness pressing roller (34).

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