Container metal bottom plate positioning and welding equipment

Abstract

The invention discloses container metal bottom plate positioning and welding equipment, which relates to the technical field of welding, and comprises a support frame, and the output end of a servo motor is connected with a parallel positioning part positioned between two feeding sliding plates. According to the welding device, the parallel position adjusting piece is arranged, the containing plate moves towards the clamping groove along with movement of the bottom plate, and after the end face of the bottom plate is flush with the movable plate, the first telescopic air cylinder is started, so that the end faces of the bottom plate to be welded are in a parallel state; a servo motor drives a connecting shaft to rotate anticlockwise to enable a second lead screw to rotate firstly, then a first lead screw rotates, so that a movable plate moves downwards after being separated from the end faces of the bottom plates, and a second telescopic air cylinder drives a feeding sliding plate to move to enable the two bottom plates to be spliced. And at the moment, the splicing seam of the bottom plate is just located under the welding gun, so that it is guaranteed that the welding gun welds the splicing seam when moving linearly, and the welding precision is further improved.

Description

Technical Field

[0001] This invention relates to the field of welding technology, specifically to a positioning welding device for container metal floor plates. Background Technology

[0002] The container floor is constructed by splicing two plates together to form a large-size floor structure. The joint is welded using plasma arc welding. Before welding, the two floor plates are adjusted to the same plane and the butt gap is ensured to be uniform. Penetrating plasma arc welding is used, which utilizes the high energy density of the plasma arc to achieve single-sided welding and double-sided forming of the weld. This ensures uniform penetration and aesthetically pleasing weld formation at the butt joint of the floor plates. During the welding process, the automatic welding torch moves at a uniform speed, and the protective gas prevents weld oxidation and defects such as porosity and slag inclusions. This ensures that the floor plates have sufficient structural strength, flatness, and sealing after splicing, meeting the requirements for load-bearing capacity, torsional resistance, and long-term use of the container bottom.

[0003] When splicing container floor panels, the splice point is very prone to misalignment with the welding torch travel mechanism. At this time, the welding torch will be misaligned with the weld seam during the movement, which will affect the welding effect between the two container floor panels and also affect the stability of the container floor panels after welding. Summary of the Invention

[0004] The purpose of this invention is to provide a positioning and welding device for container metal floor plates, in order to solve the problem that misalignment easily occurs between the splice seam and the welding gun travel path when splicing and placing the floor plates.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a container metal floor positioning and welding equipment, comprising a support frame, a connecting plate installed on the inner side of the support frame, a positioning frame installed on the top of the support frame above the connecting plate, a slide rail provided on the inner side of the positioning frame, a feeding slide plate slidably connected on the slide rail, two feeding slide plates being provided, and the two feeding slide plates being symmetrically arranged along the vertical central axis of the positioning frame, a welding gun being connected to the top of the positioning frame via a linear module, U-shaped frames being provided on both sides of the feeding slide plates, a first telescopic cylinder being installed on the top of the U-shaped frame, a pressure plate being connected to the output end of the first telescopic cylinder, a servo motor being installed at the bottom of the connecting plate, and a parallel adjustment component located between the two feeding slide plates being connected to the output end of the servo motor; The parallel adjustment component includes a first lead screw installed on the top of the connecting plate. A movable frame is movably sleeved on the outer side of the first lead screw. Telescopic rods connected to the top of the connecting plate are provided on both sides of the movable frame. A connecting chamber is installed on the top of the movable frame. The output end of the first telescopic cylinder is connected to a connecting shaft that passes through the first lead screw. A slot is opened on the inner side of the connecting shaft. A hexagonal transmission rod extending to the top of the slot is slidably connected to the inner side of the slot. An extension rod extending to the inner side of the connecting chamber is fixedly connected to the top of the hexagonal transmission rod. A second lead screw is fixedly connected to the top of the extension rod. A threaded block is sleeved on the outer side of the second lead screw. Movable plates are inserted into both sides of the connecting chamber. A diagonal brace connected to the threaded block is provided at one end of the movable plate. Stops are provided at the top and bottom of the first lead screw. A rotating connecting plate flush with the stop is provided on the outer wall of the connecting shaft.

[0006] As a further embodiment of the present invention: the parallel adjustment component further includes a slot on the side of the movable plate away from the connecting chamber, the number of slots being two, and the two slots being symmetrically arranged along the vertical central axis of the movable plate. A rectangular guide block penetrating the slot is inserted into one side of the movable plate, and a placement plate is provided at one end of the rectangular guide block. A first telescopic spring connected to the placement plate is provided inside the slot. A limiting hole extending to the bottom of the rectangular guide block is provided at the top of the rectangular guide block. A positioning block located above the rectangular guide block is installed on the side of the movable plate near the connecting chamber. A limiting post is inserted into one end of the positioning block. A second telescopic spring connected to the top of the limiting post is provided at the top of the limiting post. A pin is installed at the bottom of the limiting post. A locking plate is provided on one side of the pin. A second telescopic cylinder is installed at the bottom of the slide rail. The output end of the second telescopic cylinder is connected to the bottom of the feeding slide plate. Top rods located on both sides of the telescopic rod are fixedly connected to the top of the support frame. An L-shaped baffle plate is provided at the top of the top rod. A contact control unit is provided at the top of the connecting chamber.

[0007] As a further embodiment of the present invention: the two ends of the diagonal brace are respectively rotatably connected to the threaded block and the movable plate.

[0008] As a further embodiment of the present invention: the bottom end of the pin is rotatably connected to a ball bearing via a rotating shaft, and the diameter of the pin is equal to the diameter of the limiting hole.

[0009] As a further aspect of the present invention: the inner side of the first lead screw is provided with a through hole with a diameter larger than that of the outer wall of the connecting shaft.

[0010] As a further aspect of the present invention: the number of the stops is set to multiple, and the multiple stops are distributed at equal distances along the center of the first lead screw.

[0011] As a further embodiment of the present invention: the contact control unit includes a first contact piece installed on one side of the rectangular guide block, a second contact piece flush with the first contact piece is installed on one side of the movable plate, and a warning light is installed on the top of the connecting compartment.

[0012] As a further embodiment of the present invention: the second contact pieces adjacent to each other on one side of the movable plate are electrically connected by wires, and the first contact pieces on the two sets of rectangular conductive blocks are electrically connected to an external power supply and a warning light by wires respectively.

[0013] As a further aspect of the present invention: the maximum distance between the first contact piece and the second contact piece is equal to the maximum distance from the pin to the limiting hole.

[0014] As a further embodiment of the present invention: the length and width of the placement plate are equal to the length and width of the card slot.

[0015] Compared with the prior art, the beneficial effects of the present invention are: 1. By setting a parallel adjustment component, the placement plate moves towards the slot as the base plate moves. When the end face of the base plate is flush with the movable plate, the first telescopic cylinder is activated to make the end faces of the base plates to be welded parallel. The servo motor drives the connecting shaft to rotate counterclockwise, causing the second lead screw to rotate first, and then the first lead screw rotates, so that the end face of the movable plate is separated from the end face of the base plate and moves down. The second telescopic cylinder drives the feeding slide to move so that the two base plates are spliced. At this time, the splice seam of the base plate is located directly below the welding gun, so that the splice seam is aligned with the movement trajectory of the welding gun, thereby ensuring that the welding gun welds the splice seam when moving in a straight line, further improving the welding accuracy. 2. By setting a contact control unit, when the placement plate is squeezed by the container floor, the first contact piece will move through the rectangular guide block. When the end of the placement plate away from the pin is flush with the end of the movable plate, the first and second contact pieces are energized. When both sets of placement plates on the movable plate are snapped into the slots, the corresponding warning lights will light up. This indicates that one end of the container floor is in contact with the movable plate, thus making one end of the movable plate flush with one side of the container floor. This allows for a quick judgment on whether the end faces of the two floor plates are flush, preventing the welding effect from being affected by misalignment between the splice seam of the floor plates and the operating trajectory of the welding gun. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the bottom structure of the feeding slide plate of the present invention; Figure 3 This is a schematic diagram showing the connection between the connecting plate and the connecting compartment of the present invention; Figure 4 For the present invention Figure 3 Enlarged view of point A in the middle; Figure 5 This is a schematic diagram showing the connection between the movable plate and the connecting compartment of the present invention; Figure 6 This is a schematic diagram showing the connection between the first lead screw and the second lead screw of the present invention; Figure 7 This is a schematic diagram showing the connection between the first lead screw and the connecting shaft of the present invention; Figure 8 This is a schematic diagram showing the connection between the placement plate and the movable plate of the present invention.

[0017] In the diagram: 1. Support frame; 2. Connecting plate; 3. Positioning frame; 4. Slide rail; 5. Feeding slide plate; 6. Welding torch; 7. U-shaped frame; 8. Pressure plate; 9. First telescopic cylinder; 10. Second telescopic cylinder; 11. Servo motor; 12. Top rod; 13. L-shaped baffle plate; 14. Movable frame; 15. Hexagonal transmission rod; 16. Placement plate; 17. Movable plate; 18. Connecting compartment; 19. Rotating connecting plate; 20. Stop block; 21. 21. First lead screw; 22. Telescopic rod; 23. Connecting shaft; 24. Warning light; 25. Second lead screw; 26. Threaded block; 27. Slot; 28. Extension rod; 29. ​​Diagonal brace; 30. First contact piece; 31. Second contact piece; 32. First telescopic spring; 33. Limiting post; 34. Positioning block; 35. Second telescopic spring; 36. Card plate; 37. Pin; 38. Rectangular guide block; 39. Limiting hole; 40. Slot. Detailed Implementation

[0018] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0019] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing this invention 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, and therefore should not be construed as a limitation of this invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In the description of this invention, it should be noted that unless otherwise explicitly specified and limited, the terms "installed," "connected," "linked," and "set up" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal communication of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances. The following describes embodiments of the invention based on its overall structure.

[0020] Please see Figures 1 to 8 In this embodiment of the invention, a container metal floor positioning and welding device includes a support frame 1, a connecting plate 2 installed on the inner side of the support frame 1, a positioning frame 3 installed on the top of the support frame 1 above the connecting plate 2, a slide rail 4 provided on the inner side of the positioning frame 3, a feeding slide plate 5 slidably connected on the slide rail 4, two feeding slide plates 5 are provided, and the two feeding slide plates 5 are symmetrically arranged along the vertical central axis of the positioning frame 3, a welding gun 6 is connected to the top of the positioning frame 3 through a linear module, U-shaped frames 7 are provided on both sides of the feeding slide plates 5, a first telescopic cylinder 9 is installed on the top of the U-shaped frame 7, a pressure plate 8 is connected to the output end of the first telescopic cylinder 9, a servo motor 11 is installed at the bottom of the connecting plate 2, and a parallel adjustment component located between the two feeding slide plates 5 is connected to the output end of the servo motor 11.

[0021] In this embodiment, the container bottom plate to be welded is first placed on top of the feeding slide plate 5. Then, the bottom plate is pushed against the movable plate 17 so that one end of the bottom plate contacts the placement plate 16. As the bottom plate moves, the placement plate 16 moves towards the slot 40. During this process, the first telescopic spring 32 retracts. When one end of the placement plate 16 is flush with the movable plate 17, the limiting hole 39 moves directly below the pin 37. At this time, the pin 37 will engage with the limiting hole 39 under the elastic restoring force of the second telescopic spring 35. The control unit determines whether the end face of the base plate is flush with the movable plate 17. When the end face of the base plate is flush with the movable plate 17, the first telescopic cylinder 9 is activated. The first telescopic cylinder 9 drives the pressure plate 8 to move downward, so that the pressure plate 8 presses and positions the base plate, thereby making the end faces of the base plates to be welded parallel. Then, the servo motor 11 is activated, which drives the connecting shaft 23 to rotate counterclockwise, so that the rotating connecting plate 19 separates from the stop block 20 at the top of the first lead screw 21. During this process, the connecting shaft 23 drives the connecting plate 29 through the hexagonal transmission rod 15 and the extension rod 28. The second lead screw 25 is rotated, causing the threaded block 26 to move downwards along the second lead screw 25. At this time, the threaded block 26 pulls the movable plate 17 through the diagonal brace 29, thereby separating the movable plate 17 from the end face of the bottom plate. As the connecting shaft 23 continues to rotate, the rotating connecting plate 19 will contact another stop 20. At this time, the connecting shaft 23 will drive the first lead screw 21 to rotate through the stop 20. When the first lead screw 21 rotates, it will drive the movable frame 14 to move downwards, thereby moving the movable plate 17 to below the container bottom plate. When the connecting chamber 18 moves to its lowest position, the top of the L-shaped baffle plate 13 will obstruct the card plate 36, thereby separating the pin 37 from the limiting hole 39. This allows the placement plate 16 to return to its original position under the elastic restoring force of the first telescopic spring 32. Then, the second telescopic cylinder 10 is activated, which drives the feeding slide plate 5 to move so that the two base plates are spliced ​​together. At this time, the splice seam of the base plate is located directly below the welding gun 6, so that the splice seam is aligned with the movement trajectory of the welding gun 6. Then, the base plate can be welded by the operation of the welding gun 6.

[0022] Please refer to this carefully. Figure 3 , Figure 4 , Figure 5 , Figure 7 , Figure 8The parallel adjustment component includes a first lead screw 21 mounted on the top of the connecting plate 2. A movable frame 14 is movably sleeved on the outer side of the first lead screw 21. Telescopic rods 22 connected to the top of the connecting plate 2 are provided on both sides of the movable frame 14. A connecting chamber 18 is installed on the top of the movable frame 14. The output end of the first telescopic cylinder 9 is connected to a connecting shaft 23 that passes through the first lead screw 21. A slot 27 is opened on the inner side of the connecting shaft 23. A hexagonal transmission rod extending above the slot 27 is slidably connected to the inner side of the slot 27. 15. The top end of the hexagonal transmission rod 15 is fixedly connected to an extension rod 28 extending to the inside of the connecting chamber 18. The top end of the extension rod 28 is fixedly connected to a second lead screw 25. A threaded block 26 is sleeved on the outside of the second lead screw 25. Movable plates 17 are inserted into both sides of the connecting chamber 18. One end of the movable plate 17 is provided with a diagonal brace 29 connected to the threaded block 26. The top and bottom of the first lead screw 21 are both provided with a stop block 20. The outer wall of the connecting shaft 23 is provided with a rotating connecting plate 19 that is flush with the stop block 20. The parallel adjustment component also includes a slot 40 on the side of the movable plate 17 away from the connecting chamber 18. There are two slots 40, symmetrically arranged along the vertical central axis of the movable plate 17. A rectangular guide block 38 is inserted through the slot 40 on one side of the movable plate 17. A placement plate 16 is provided at one end of the rectangular guide block 38. A first telescopic spring 32 connected to the placement plate 16 is provided inside the slot 40. A limiting hole 39 extending to the bottom of the rectangular guide block 38 is provided at the top of the rectangular guide block 38. A device located on the rectangular guide block is installed on the side of the movable plate 17 near the connecting chamber 18. The positioning block 34 is located above 38. One end of the positioning block 34 is inserted into a limiting post 33. The top of the limiting post 33 is provided with a second telescopic spring 35 connected to the top of the positioning block 34. The bottom of the limiting post 33 is equipped with a pin 37. A locking plate 36 is provided on one side of the pin 37. The bottom of the slide rail 4 is equipped with a second telescopic cylinder 10. The output end of the second telescopic cylinder 10 is connected to the bottom of the feeding slide plate 5. The top of the support frame 1 is fixedly connected with top rods 12 located on both sides of the telescopic rod 22. The top of the top rod 12 is provided with an L-shaped baffle plate 13. The top of the connecting chamber 18 is equipped with a contact control unit.

[0023] The two ends of the diagonal brace 29 are rotatably connected to the threaded block 26 and the movable plate 17, respectively. The bottom end of the pin 37 is rotatably connected to a ball bearing via a rotating shaft. The diameter of the pin 37 is equal to the diameter of the limiting hole 39. The inner side of the first lead screw 21 is provided with a through hole with a diameter larger than that of the outer wall of the connecting shaft 23. Multiple stops 20 are provided, and the multiple stops 20 are distributed at equal distances along the center of the first lead screw 21.

[0024] In this embodiment, the container bottom plate to be welded is first placed on top of the feeding slide plate 5. Then, the bottom plate is pushed against the movable plate 17 so that one end of the bottom plate contacts the placement plate 16. As the bottom plate moves, the placement plate 16 moves towards the slot 40. During this process, the first telescopic spring 32 retracts. When one end of the placement plate 16 is flush with the movable plate 17, the limiting hole 39 moves directly below the pin 37. At this time, the pin 37 will engage with the limiting hole 39 under the elastic restoring force of the second telescopic spring 35. The control unit determines whether the end face of the base plate is flush with the movable plate 17. When the end face of the base plate is flush with the movable plate 17, the first telescopic cylinder 9 is activated. The first telescopic cylinder 9 drives the pressure plate 8 to move downward, so that the pressure plate 8 presses and positions the base plate, thereby making the end faces of the base plates to be welded parallel. Then, the servo motor 11 is activated, which drives the connecting shaft 23 to rotate counterclockwise, so that the rotating connecting plate 19 separates from the stop block 20 at the top of the first lead screw 21. During this process, the connecting shaft 23 drives the connecting plate 29 through the hexagonal transmission rod 15 and the extension rod 28. The second lead screw 25 is rotated, causing the threaded block 26 to move downwards along the second lead screw 25. At this time, the threaded block 26 pulls the movable plate 17 through the diagonal brace 29, thereby separating the movable plate 17 from the end face of the bottom plate. As the connecting shaft 23 continues to rotate, the rotating connecting plate 19 will contact another stop 20. At this time, the connecting shaft 23 will drive the first lead screw 21 to rotate through the stop 20. When the first lead screw 21 rotates, it will drive the movable frame 14 to move downwards, thereby moving the movable plate 17 to below the container bottom plate. When the connecting chamber 18 moves to its lowest position, the top of the L-shaped baffle plate 13 will obstruct the card plate 36, thereby separating the pin 37 from the limiting hole 39. This allows the placement plate 16 to return to its original position under the elastic restoring force of the first telescopic spring 32. Then, the second telescopic cylinder 10 is activated, which drives the feeding slide plate 5 to move so that the two base plates are spliced ​​together. At this time, the splice seam of the base plate is located directly below the welding gun 6, so that the splice seam is aligned with the movement trajectory of the welding gun 6. Then, the base plate can be welded by the operation of the welding gun 6.

[0025] Please refer to this carefully. Figure 6 , Figure 8 The touch control unit includes a first contact piece 30 installed on one side of the rectangular guide block 38, a second contact piece 31 flush with the first contact piece 30 installed on one side of the movable plate 17, and a warning light 24 installed on the top of the connecting compartment 18.

[0026] Among them, the second contact piece 31 adjacent to one side of the movable plate 17 is electrically connected by a wire, and the first contact piece 30 on the two sets of rectangular guide blocks 38 is electrically connected to the external power supply and the warning light 24 by wires respectively. The maximum distance between the first contact piece 30 and the second contact piece 31 is equal to the maximum distance from the pin 37 to the limiting hole 39. The length and width of the placement plate 16 are equal to the length and width of the slot 40.

[0027] In this embodiment, when the placement plate 16 is pressed by the container floor, the first contact piece 30 will move through the rectangular guide block 38. When the end of the placement plate 16 away from the pin 37 is flush with the end of the movable plate 17, the first contact piece 30 and the second contact piece 31 are energized. When both sets of placement plates 16 on the movable plate 17 are snapped into the inside of the slot 40, the corresponding warning light 24 lights up. This indicates that the end of the container floor is in contact with the movable plate 17, so that the end of the movable plate 17 is flush with one side of the container floor. This allows for a quick judgment on whether the end faces between the two floor plates are flush, preventing the welding effect from being affected by misalignment between the splice seam of the floor plates and the operating trajectory of the welding gun 6.

[0028] The above description is merely a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A container metal floor positioning and welding equipment, comprising a support frame (1), characterized in that, A connecting plate (2) is installed on the inner side of the support frame (1). A positioning frame (3) located above the connecting plate (2) is installed on the top of the support frame (1). A slide rail (4) is provided on the inner side of the positioning frame (3). A feeding slide plate (5) is slidably connected on the slide rail (4). There are two feeding slide plates (5), and the two feeding slide plates (5) are symmetrically arranged along the vertical central axis of the positioning frame (3). A welding gun (6) is connected to the top of the positioning frame (3) through a straight module. U-shaped frames (7) are provided on both sides of the feeding slide plate (5). A first telescopic cylinder (9) is installed on the top of the U-shaped frame (7). A pressure plate (8) is connected to the output end of the first telescopic cylinder (9). A servo motor (11) is installed at the bottom of the connecting plate (2). A parallel adjustment component located between the two feeding slide plates (5) is connected to the output end of the servo motor (11). The parallel adjustment component includes a first lead screw (21) installed on the top of the connecting plate (2). A movable frame (14) is movably sleeved on the outer side of the first lead screw (21). Telescopic rods (22) connected to the top of the connecting plate (2) are provided on both sides of the movable frame (14). A connecting chamber (18) is installed on the top of the movable frame (14). The output end of the first telescopic cylinder (9) is connected to a connecting shaft (23) that passes through the first lead screw (21). A slot (27) is opened on the inner side of the connecting shaft (23). A hexagonal transmission rod (1) extending to the top of the slot (27) is slidably connected to the inner side of the slot (27). 5) The top end of the hexagonal transmission rod (15) is fixedly connected to an extension rod (28) extending to the inside of the connecting chamber (18). The top end of the extension rod (28) is fixedly connected to a second lead screw (25). A threaded block (26) is sleeved on the outside of the second lead screw (25). Movable plates (17) are inserted into both sides of the connecting chamber (18). One end of the movable plate (17) is provided with a diagonal brace (29) connected to the threaded block (26). The top and bottom of the first lead screw (21) are provided with a stop block (20). The outer wall of the connecting shaft (23) is provided with a rotating connecting plate (19) that is flush with the stop block (20).

2. The container metal floor positioning and welding equipment according to claim 1, characterized in that, The parallel adjustment component also includes a slot (40) on the side of the movable plate (17) away from the connecting compartment (18). There are two slots (40), and the two slots (40) are symmetrically arranged along the vertical central axis of the movable plate (17). A rectangular guide block (38) penetrating the slot (40) is inserted into one side of the movable plate (17). A placement plate (16) is provided at one end of the rectangular guide block (38). A first telescopic spring (32) connected to the placement plate (16) is provided on the inner side of the slot (40). A limiting hole (39) extending to the bottom of the rectangular guide block (38) is provided at the top of the rectangular guide block (38). A rectangular guide block (38) is installed on the side of the movable plate (17) near the connecting compartment (18). The upper positioning block (34) has a limit post (33) inserted into one end. The top of the limit post (33) is provided with a second telescopic spring (35) connected to the top of the positioning block (34). The bottom of the limit post (33) is provided with a pin (37). A card plate (36) is provided on one side of the pin (37). The bottom of the slide rail (4) is provided with a second telescopic cylinder (10). The output end of the second telescopic cylinder (10) is connected to the bottom of the feeding slide plate (5). The top of the support frame (1) is fixedly connected with top rods (12) located on both sides of the telescopic rod (22). The top of the top rod (12) is provided with an L-shaped baffle plate (13). The top of the connecting chamber (18) is provided with a contact control unit.

3. The container metal floor positioning and welding equipment according to claim 2, characterized in that, The two ends of the diagonal brace (29) are rotatably connected to the threaded block (26) and the movable plate (17), respectively.

4. The container metal floor positioning and welding equipment according to claim 2, characterized in that, The bottom end of the pin (37) is rotatably connected to a ball bearing via a rotating shaft, and the diameter of the pin (37) is equal to the diameter of the limiting hole (39).

5. The container metal floor positioning and welding equipment according to claim 2, characterized in that, The inner side of the first lead screw (21) is provided with a through hole with a diameter larger than that of the outer wall of the connecting shaft (23).

6. The container metal floor positioning and welding equipment according to claim 2, characterized in that, The number of the stops (20) is set to be multiple, and the multiple stops (20) are distributed at equal distances along the center of the first lead screw (21).

7. The container metal floor positioning and welding equipment according to claim 2, characterized in that, The touch control unit includes a first contact piece (30) installed on one side of the rectangular guide block (38), a second contact piece (31) flush with the first contact piece (30) installed on one side of the movable plate (17), and a warning light (24) installed on the top of the connecting compartment (18).

8. The container metal floor positioning and welding equipment according to claim 7, characterized in that, The second contact piece (31) adjacent to one side of the active plate (17) is electrically connected by a wire, and the first contact piece (30) on the two sets of rectangular conductors (38) is electrically connected to the external power supply and the warning light (24) by wires respectively.

9. A container metal floor positioning and welding equipment according to claim 7, characterized in that, The maximum distance between the first contact piece (30) and the second contact piece (31) is equal to the maximum distance from the pin (37) to the limiting hole (39).

10. A container metal floor positioning and welding equipment according to claim 7, characterized in that, The length and width of the placement plate (16) are equal to the length and width of the slot (40).

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