A positioning and welding device for an ATM machine shell sheet metal part

Abstract

The present application belongs to the technical field of welding, in particular to a positioning and welding device for ATM shell sheet metal parts, which comprises a workbench, a guide rail plate one is fixedly connected to one side of the upper end face of the workbench, a lead screw guide rail one is installed on one side of the guide rail plate one, a sliding block one is slidably arranged on the lead screw guide rail one, a cylinder one is fixedly connected to one side of the sliding block one, and a welding gun is fixedly connected to the piston end of the cylinder one. The positioning and clamping assembly and the auxiliary assembly are used to realize automatic feeding of multiple sheet metal parts, which saves the process of manual feeding and is more convenient and labor-saving. In addition, compared with the mechanical hand feeding mode, this mode can separate multiple sheet metal parts and keep the same angle, and the clamping rod can clamp a single sheet metal part according to the fixed track, which is beneficial to improve the feeding and continuous welding efficiency.

Description

Technical Field

[0001] This invention belongs to the field of welding technology, specifically a positioning welding device for sheet metal parts of ATM machine casing. Background Technology

[0002] The ATM casing is the external protective structure of the ATM device. Its core function is to protect internal precision components (such as the cash module and control board) from external impacts, environmental corrosion, or illegal damage. The casing is typically made of sheet metal parts (such as stainless steel plates or cold-rolled steel plates) through processes such as stamping, bending, and welding. Welding is used to connect sheet metal parts of different shapes, for example, to fix the cabinet frame to the operation panel, back cover, and other components, forming a rigid overall structure to ensure the stability of the equipment during transportation, installation, and use.

[0003] Patent CN214921585U discloses a positioning and welding device for ATM machine outer sheet metal parts, including a base, a frame, a first positioning component, a second positioning component, and a welding fume treatment mechanism. The frame is fixedly installed on the upper end of the base, and a first transmission screw is rotatably mounted on the frame. A second drive motor is fixedly mounted on the frame, and the output end of the second drive motor is fixedly connected to one end of the first transmission screw. A first screw nut is provided on the first transmission screw. This patent, by setting the first and second positioning components, allows for adjustment of the distance between the first and second positioning components, facilitating clamping and positioning of both sides of the ATM machine outer sheet metal parts using the first and second positioning components. Simultaneously, the electric push rods on the first and second positioning components can extend, using a pad to press and fix the upper end of the ATM machine outer sheet metal parts, ensuring good positioning effect.

[0004] However, the above technical solutions still have the following shortcomings in practical applications: When welding sheet metal parts for ATM machine casings, two sheet metal parts need to be fixed in place using positioning components before welding the joint. However, in some cases, a large number of sheet metal parts need to be welded. If workers manually place each part onto the positioning components one by one, it leads to high labor intensity and fatigue, affecting the efficiency of continuous welding of multiple parts. Furthermore, when using robotic arms to load sheet metal parts, if multiple parts are piled up haphazardly, the robotic arm struggles to grip them according to a pre-set path, similarly impacting welding efficiency. Summary of the Invention

[0005] In order to overcome the shortcomings of the prior art and solve at least one of the technical problems mentioned in the background art, the present invention proposes a positioning and welding device for ATM machine shell sheet metal parts.

[0006] The technical solution adopted by the present invention to solve its technical problem is: a positioning and welding device for sheet metal parts of ATM machine shell, including a worktable, a guide rail plate is fixedly connected to one side of the upper surface of the worktable, a screw guide rail is installed on one side of the guide rail plate, a slider is slidably arranged on the screw guide rail, a cylinder is fixedly connected to one side of the slider, and a welding gun is fixedly connected to the piston end of the cylinder. The workbench is also equipped with a sheet metal clamping and positioning component. The sheet metal clamping and positioning assembly includes two sets of lead screw guide rails II mounted on the upper surface of the workbench. A guide rail plate II is slidably mounted on the lead screw guide rails II. A lead screw guide rail III is mounted on one side of the upper surface of the guide rail plate II. A transverse rod is slidably mounted on the lead screw guide rail III. A flip plate is rotatably mounted on one side of the upper end of the transverse rod. A bidirectional lead screw guide rail is mounted on one side of the flip plate. Clamping rods are slidably mounted on both sides of the bidirectional lead screw guide rail. A visual inspection probe is mounted on one side of the upper end of the transverse rod. The workbench is also equipped with sheet metal clamping auxiliary components. The sheet metal clamping auxiliary assembly includes a loading platform fixedly connected to one side of the upper surface of the workbench. A support rod is fixedly connected to one side of the upper surface of the loading platform. Multiple limiting plates are distributed horizontally and equidistantly on the support rod. The foremost limiting plate is fixedly connected to the support rod, and the remaining limiting plates are slidably connected to the support rod. The limiting plates are provided with grooves through which the clamping rod can pass.

[0007] Preferably, two connecting rods are rotatably provided at one end of the frontmost and rearmost limiting plates, and two connecting rods are rotatably provided at one end of the remaining limiting plates. One end of the connecting rods is rotatably connected to one end of the connecting rods, and the ends of two adjacent connecting rods are rotatably connected. A motor is fixedly connected to one side of the upper end of the transverse rod, and the output end of the motor is fixedly connected to one side of the flipping plate.

[0008] Preferably, a second cylinder is fixedly connected to one side of the upper end of the support rod, and the piston end of the second cylinder is fixedly connected to one end of the last limiting plate.

[0009] Preferably, a baffle three is fixedly connected to one side of the upper surface of the loading platform, a baffle four is inserted into and slidably connected to the baffle three, a cylinder three is fixedly connected to one side of the upper surface of the loading platform, a baffle five is fixedly connected to the piston end of the cylinder three, and a baffle six is ​​inserted into and slidably connected to the baffle five.

[0010] Preferably, a cylinder four is fixedly connected to one side of the upper surface of the loading platform, and a baffle one is fixedly connected to the piston end of the cylinder four. One side surface of the baffle one is in contact with the ends of the baffle four and the baffle six.

[0011] Preferably, one end of the baffle four is fixedly connected to two springs two, and the other end of the springs two is fixedly connected to one side of the inner cavity of the baffle three; one end of the baffle six is ​​fixedly connected to two springs one, and the other end of the springs one is fixedly connected to one side of the inner cavity of the baffle five.

[0012] Preferably, a guide rail plate three is fixedly connected to one side of the upper surface of the loading platform, a screw guide rail four is installed on one side of the guide rail plate three, and a baffle two is slidably arranged on the screw guide rail four. One end face of the baffle two is in contact with the baffle three and the baffle five.

[0013] Preferably, the limiting plate is further provided with a rotational friction assembly; The rotating friction assembly includes rollers rotatably mounted on both ends of the upper side of the limiting plate. One end of each roller is fixedly connected to a worm gear, and a worm is rotatably mounted on one side of the limiting plate. The worm gear meshes with the worm gear.

[0014] Preferably, a grooved cylinder and a protruding rod are fixedly connected to both ends of the worm gear, and both the grooved cylinder and the protruding rod are rotatably mounted on the limiting plate. Adjacent grooved cylinders and protruding rods are connected by keyways and slidably. A second motor is fixedly connected to one side of the limiting plate, and the output end of the second motor is fixedly connected to one end of the worm gear.

[0015] Preferably, a guide rail plate four is fixedly connected to one side of the baffle two, a lead screw guide rail five is installed on one side of the guide rail plate four, a guide rail plate five is slidably mounted on the lead screw guide rail five, a lead screw guide rail six is ​​installed on one side of the guide rail plate five, a slider two is slidably mounted on the lead screw guide rail six, a lifting rod is fixedly connected to one side of the slider two, a pressure sensor is provided at the end of the lifting rod, and a strip-shaped through hole is provided on one side of the baffle two for the lifting rod to pass through.

[0016] The beneficial effects of this invention are as follows: 1. The positioning and welding device for ATM machine shell sheet metal parts described in this invention utilizes a sheet metal part clamping and positioning component and a sheet metal part clamping auxiliary component to achieve automatic feeding of multiple sheet metal parts, eliminating the need for manual feeding and making it more convenient and labor-saving. Furthermore, compared to using a robotic arm to feed sheet metal parts, this method allows multiple sheet metal parts to be separated and maintained at a uniform angle, with the clamping rods gripping individual sheet metal parts along a fixed trajectory, which helps improve feeding and continuous welding efficiency.

[0017] 2. The positioning and welding device for ATM machine shell sheet metal parts of the present invention, by driving the roller to rotate and lifting the lifting rod, makes the sheet metal parts in the feeding cavity move continuously, reducing their static contact with the limiting plate and avoiding the impact of feeding due to flat jamming. Attached Figure Description

[0018] The invention will now be further described with reference to the accompanying drawings.

[0019] Figure 1 This is a three-dimensional structural schematic diagram of the present invention; Figure 2 This is a schematic diagram of a three-dimensional structure of the guide rail plate; Figure 3 This is a schematic diagram of the three-dimensional structure of the welding torch. Figure 4 This is a schematic diagram of the three-dimensional structure at the transverse sliding rod; Figure 5 This is a schematic diagram of a three-dimensional structure of the baffle. Figure 6 yes Figure 5 Enlarged view of a portion of point A in the middle; Figure 7 yes Figure 5 Enlarged view of a section at point B in the middle; Figure 8 This is a schematic diagram of the three-dimensional structure of the baffle at five points; Figure 9 This is a schematic diagram of the three-dimensional structure of the loading platform; Figure 10 This is a three-dimensional structural diagram showing the connection relationship between link one and link two; Figure 11 This is a schematic diagram of the three-dimensional structure of the guide rail plate; Figure 12 This is a schematic diagram of the three-dimensional structure of the guide rail plate. Figure 13 This is a schematic diagram of the three-dimensional structure at the roller. Figure 14 This is a half-section plan view of baffle five and baffle six; Figure 15 This is a schematic diagram of the cross-sectional plan of baffle three and baffle four.

[0020] In the diagram: 1. Workbench; 2. Loading platform; 3. Guide rail plate one; 4. Baffle one; 5. Baffle two; 6. Guide rail plate two; 7. Lead screw guide rail one; 8. Slider one; 9. Cylinder one; 10. Welding torch; 11. Lead screw guide rail two; 12. Cylinder two; 13. Lead screw guide rail three; 14. Horizontal movement rod; 15. Motor one; 16. Vision inspection probe; 17. Tilting plate; 18. Clamping rod; 19. Bidirectional lead screw guide rail; 20. Cylinder three; 21. Cylinder four; 22. Roller; 23. Limiting plate; 24. 25. Worm Gear; 26. Motor II; 27. Groove Cylinder; 28. Protrusion Rod; 29. ​​Baffle III; 30. Baffle IV; 31. Baffle V; 32. Baffle VI; 33. Guide Rail Plate III; 34. Lead Screw Guide Rail IV; 35. Guide Rail Plate IV; 36. Lifting Rod; 37. Lead Screw Guide Rail V; 38. Lead Screw Guide Rail VI; 39. Slider II; 40. Spring I; 41. Spring II; 42. Support Rod; 43. Connecting Rod I; 44. Connecting Rod II; 45. Pressure Sensor; 46. Guide Rail Plate V. Detailed Implementation

[0021] The technical solution of the present invention will now be clearly and completely described 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.

[0022] Please refer to Figures 1-15 The present invention provides a technical solution: a positioning and welding device for sheet metal parts of ATM machine casing, including a workbench 1, a guide rail plate 3 fixedly connected to one side of the upper end face of the workbench 1, a lead screw guide rail 7 installed on one side of the guide rail plate 3, a slider 8 slidably arranged on the lead screw guide rail 7, a cylinder 9 fixedly connected to one side of the slider 8, and a welding gun 10 fixedly connected to the piston end of the cylinder 9. The workbench 1 is also equipped with a sheet metal clamping and positioning component; The sheet metal clamping and positioning assembly includes two sets of lead screw guide rails 11 mounted on the upper surface of the worktable 1. A guide rail plate 6 is slidably mounted on the lead screw guide rail 11. A lead screw guide rail 13 is mounted on one side of the upper surface of the guide rail plate 16. A transverse rod 14 is slidably mounted on the lead screw guide rail 13. A flip plate 17 is rotatably mounted on one side of the upper end of the transverse rod 14. A bidirectional lead screw guide rail 19 is mounted on one side of the flip plate 17. Clamping rods 18 are slidably mounted on both sides of the bidirectional lead screw guide rail 19. A vision inspection probe 16 is mounted on one side of the upper end of the transverse rod 14. The workbench 1 is also equipped with sheet metal clamping auxiliary components; The sheet metal clamping auxiliary assembly includes a loading platform 2 fixedly connected to one side of the upper surface of the workbench 1. A support rod 42 is fixedly connected to one side of the upper surface of the loading platform 2. Multiple limiting plates 23 are distributed horizontally and equidistantly on the support rod 42. The foremost limiting plate 23 is fixedly connected to the support rod 42, and the other limiting plates 23 are slidably connected to the support rod 42. The limiting plates 23 are provided with grooves through which the clamping rod 18 can pass.

[0023] In this embodiment, as Figure 2 , Figure 5 , Figure 7 , Figure 11 , Figure 13 , Figure 15 As shown, two connecting rods 43 are rotatably mounted on one end of the frontmost and rearmost limiting plates 23, and two connecting rods 44 are rotatably mounted on one end of the remaining limiting plates 23. One end of the connecting rod 43 is rotatably connected to one end of the connecting rod 44, and the ends of two adjacent connecting rods 44 are rotatably connected. A motor 15 is fixedly connected to one side of the upper end of the transverse rod 14, and the output end of the motor 15 is fixedly connected to one side of the flip plate 17.

[0024] A cylinder 12 is fixedly connected to one side of the upper end of the support rod 42, and the piston end of the cylinder 12 is fixedly connected to one end of the last side limiting plate 23.

[0025] A baffle 3 29 is fixedly connected to one side of the upper end face of the feeding platform 2. A baffle 4 30 is inserted into and slidably connected to the baffle 3 29. A cylinder 3 20 is fixedly connected to one side of the upper end face of the feeding platform 2. A baffle 5 31 is fixedly connected to the piston end of the cylinder 3 20. A baffle 6 32 is inserted into and slidably connected to the baffle 5 31.

[0026] A cylinder 21 is fixedly connected to one side of the upper surface of the loading platform 2. A baffle 4 is fixedly connected to the piston end of the cylinder 21. One side surface of the baffle 4 is in contact with the ends of the baffle 30 and the baffle 32.

[0027] Two springs 41 are fixedly connected to one end of baffle 4 30, and the other end of spring 41 is fixedly connected to one side of the inner cavity of baffle 3 29. Two springs 40 are fixedly connected to one end of baffle 6 32, and the other end of spring 40 is fixedly connected to one side of the inner cavity of baffle 5 31.

[0028] A guide rail plate 33 is fixedly connected to one side of the upper end face of the feeding platform 2. A screw guide rail 4 34 is installed on one side of the guide rail plate 33. A baffle 2 5 is slidably arranged on the screw guide rail 4 34. One end face of the baffle 2 5 is in contact with the baffle 3 29 and the baffle 5 31.

[0029] Specifically, in existing technologies, when welding sheet metal parts for ATM machine casings, it is necessary to first use positioning components to fix two sheet metal parts in place before welding the joint between them. However, in some cases, there are many sheet metal parts to be welded. If workers manually place each sheet metal part at the positioning components one by one, it leads to high labor intensity for workers, and worker fatigue can affect the continuous welding efficiency of multiple sheet metal parts. In addition, when using a robotic arm to replace workers in loading sheet metal parts, if multiple sheet metal parts are piled up haphazardly, the robotic arm will have difficulty gripping the sheet metal parts according to the preset path, thus also affecting welding efficiency.

[0030] Therefore, in order to solve the above problems, the working principle of this embodiment is as follows: In the manufacturing process of ATM machine casings, welding square sheet metal parts such as side panels and top panels is one of the key steps. This embodiment is used when welding two identical square sheet metal parts together.

[0031] First, based on the thickness of the sheet metal part, cylinder 212 drives one of the limiting plates 23 to slide on the support rod 42. Then, with the transmission and cooperation of connecting rod 1 43 and connecting rod 2 44, multiple limiting plates 23 can change at equal intervals until the distance between two adjacent limiting plates 23 is equal to the thickness of the sheet metal part. Simultaneously, cylinder 320 drives baffle 5 31 and baffle 6 32 to move laterally, ensuring that the bottom of baffle 5 31 and baffle 6 32 is always aligned with the last limiting plate 23. Then, cylinder 421 drives baffle 4 to move laterally, adjusting the distance between baffle 4 and baffle 5 to be equal to the side length of the sheet metal part. When baffle 4 moves laterally, baffle 62 and baffle 40 are respectively in contact with the surface of baffle 4 under the action of spring 10 and spring 21. At this time, a feeding cavity is formed by the cooperation of baffle 4, baffle 25, baffle 329, baffle 430, baffle 531, and baffle 632. Then, multiple sheet metal parts to be welded are added into the feeding cavity. The sheet metal parts will fall downwards under gravity. Since the distance between two adjacent limiting plates 23 is equal to the thickness of the sheet metal part, only one sheet metal part can pass through the distance between two adjacent limiting plates 23 at a time. At this time, the distance between two adjacent limiting plates 23 can be regarded as a feeding channel. Since the distance between baffle 4 and baffle 5 is equal to the side length of the sheet metal part, sheet metal parts will not be placed side by side in the loading channel. At this time, the sheet metal parts in the loading channel are all placed vertically. Then, the two guide plates 6 are moved laterally by the two sets of lead screw guide rails 11. During the lateral movement of the two guide plates 6, the vision detection probe 16 can detect whether there are sheet metal parts in the loading channel. When a sheet metal part is detected in the loading channel, the transverse rod 14 can be moved on the guide plate 6 by the lead screw guide rail 3 13, so that the clamping rod 18 passes through the groove on the limiting plate 23 and extends into the loading channel. Then, under the action of the bidirectional lead screw guide rail 19, the two clamping rods 18 are driven to move closer to each other, clamping the sheet metal parts in the loading channel. Then the clamping rods 18 are moved out of the loading channel. After the two sheet metal parts are clamped by the clamping rods 18 on both sides. Motor 15 drives the tilting plate 17 to rotate 90 degrees, and the two sheet metal parts are brought together by the action of the lead screw guide rail 21. Then, the orientation of the joint between the two sheet metal parts is adjusted by driving the guide rail plate 26 to align the joint with the welding gun 10. Then, cylinder 19 drives the welding gun 10 to approach the joint between the two sheet metal parts and welds it. At the same time, the lead screw guide rail 7 drives the welding gun 10 to move longitudinally, so that the joint is welded evenly. After the two sheet metal parts are welded together, clamping rod 18 releases the sheet metal parts, and a collection box can be placed on the worktable 1 to collect the welded sheet metal parts. Then repeat the above operation. Each time a sheet metal part is taken out from the feeding channel, the subsequent sheet metal parts will fall into the feeding channel, and the clamping rod 18 will continue to clamp the sheet metal parts, thus realizing the automatic feeding of multiple sheet metal parts, saving the manual feeding process, which is more convenient and labor-saving.In addition, compared with the method of using a robotic arm to load sheet metal parts, this method can separate multiple sheet metal parts and keep them at the same angle. The clamping rod 18 can clamp a single sheet metal part according to a fixed trajectory, which is conducive to improving the efficiency of loading and continuous welding.

[0032] In this embodiment, as Figure 5 , Figure 6 , Figure 11 , Figure 12 As shown, a rotating friction assembly is also provided on the limiting plate 23; The rotating friction assembly includes rollers 22 rotatably disposed at both ends of the upper side of the limiting plate 23. One end of the rollers 22 is fixedly connected to a worm wheel 25, and a worm 24 is rotatably disposed on one side of the limiting plate 23. The worm 24 and the worm wheel 25 mesh with each other.

[0033] The worm 24 is fixedly connected to a grooved cylinder 27 and a protruding rod 28 at both ends. Both the grooved cylinder 27 and the protruding rod 28 are rotatably mounted on the limiting plate 23. Adjacent grooved cylinders 27 and protruding rods 28 are connected by keyways and slidably connected. A second motor 26 is fixedly connected to one side of the limiting plate 23. The output end of the second motor 26 is fixedly connected to one end of the worm 24.

[0034] A guide rail plate 35 is fixedly connected to one side of the baffle 2 5. A lead screw guide rail 37 is installed on one side of the guide rail plate 4 35. A guide rail plate 46 is slidably mounted on the lead screw guide rail 37. A lead screw guide rail 38 is installed on one side of the guide rail plate 46. A slider 39 is slidably mounted on the lead screw guide rail 38. A lifting rod 36 is fixedly connected to one side of the slider 39. A pressure sensor 45 is installed at the end of the lifting rod 36. A strip-shaped through hole is provided on one side of the baffle 2 5 for the lifting rod 36 to pass through.

[0035] Specifically, in the above embodiments, although the sheet metal parts are easy to clamp when they are in the loading channel, the gap of the limiting plate 23 only allows the sheet metal parts to fall vertically. Therefore, when the sheet metal parts are laid flat on the upper end of the limiting plate 23, the sheet metal parts cannot smoothly enter the loading channel, thus affecting normal loading.

[0036] Therefore, in order to solve the above problems, in this embodiment, when the distance between two adjacent limiting plates 23 changes, the grooved cylinder 27 and the protrusion rod 28 also slide relative to each other, and the two always remain in contact. When the sheet metal part is in the unloading chamber, the worm gear 24 on one side can be rotated by the motor 26. Under the transmission cooperation of the grooved cylinder 27, the protruding rod 28, and the worm wheel 25, multiple rollers 22 can rotate simultaneously. The sheet metal part in the unloading chamber can be continuously moved by the contact between the rollers 22 and the sheet metal part. At the same time, the baffle 2 5 is moved laterally by the lead screw guide rail 34, changing the position of its strip-shaped through hole and placing the strip-shaped through hole between two adjacent rollers 22. Then, the lifting rod 36 is extended between two rollers 22 by the lead screw guide rail 37, and the lifting rod 36 is raised by the lead screw guide rail 38. The flat sheet metal part will move upward under the action of the lifting rod 36. Then, the above operation is repeated so that all the sheet metal parts flat on the upper end of the rollers 22 can be pushed and their angles changed until they can smoothly enter the loading channel. Furthermore, in some cases, there may be vertically stacked sheet metal parts in the same feeding channel. When the lifting rod 36 extends into the feeding channel, it will be blocked by the sheet metal parts. Therefore, to prevent the lifting rod 36 from squeezing and deforming the sheet metal parts, if the lifting rod 36 is blocked, the pressure sensor 45 will detect pressure. The lifting rod 36 will then stop its lifting action and move to the next feeding channel before continuing its lifting action. This way, by driving the roller 22 to rotate and the lifting rod 36 to rise, the sheet metal parts in the unloading cavity are kept in continuous motion, reducing their static contact with the limiting plate 23 and preventing feeding from being affected by jamming due to flat laying.

[0037] Working principle: First, based on the thickness of the sheet metal part, cylinder 212 drives one of the limiting plates 23 to slide on the support rod 42. Then, under the transmission and coordination of connecting rod 11 (43) and connecting rod 22 (44), multiple limiting plates 23 can change at equal intervals until the distance between two adjacent limiting plates 23 is equal to the thickness of the sheet metal part. Simultaneously, cylinder 320 drives baffle 5 (31) and baffle 6 (32) to move laterally, ensuring that the bottom of baffle 5 (31) and baffle 6 (32) is always aligned with the last limiting plate 23. Then, cylinder 421 drives baffle 4 to move laterally, adjusting the distance between baffle 4 and baffle 5 to be equal to the side length of the sheet metal part. When baffle 4 moves laterally, baffle 62 and baffle 40 are respectively in contact with the surface of baffle 4 under the action of spring 10 and spring 21. At this time, a feeding cavity is formed by the cooperation of baffle 4, baffle 25, baffle 329, baffle 430, baffle 531, and baffle 632. Then, multiple sheet metal parts to be welded are added into the feeding cavity. The sheet metal parts will fall downwards under gravity. Since the distance between two adjacent limiting plates 23 is equal to the thickness of the sheet metal part, only one sheet metal part can pass through the distance between two adjacent limiting plates 23 at a time. At this time, the distance between two adjacent limiting plates 23 can be regarded as a feeding channel. Since the distance between baffle 4 and baffle 5 is equal to the side length of the sheet metal part, sheet metal parts will not be placed side by side in the loading channel. At this time, the sheet metal parts in the loading channel are all placed vertically. Then, the two guide plates 6 are moved laterally by the two sets of lead screw guide rails 11. During the lateral movement of the two guide plates 6, the vision detection probe 16 can detect whether there are sheet metal parts in the loading channel. When a sheet metal part is detected in the loading channel, the transverse rod 14 can be moved on the guide plate 6 by the lead screw guide rail 3 13, so that the clamping rod 18 passes through the groove on the limiting plate 23 and extends into the loading channel. Then, under the action of the bidirectional lead screw guide rail 19, the two clamping rods 18 are driven to move closer to each other, clamping the sheet metal parts in the loading channel. Then the clamping rods 18 are moved out of the loading channel. After the two sheet metal parts are clamped by the clamping rods 18 on both sides. Motor 15 drives the tilting plate 17 to rotate 90 degrees, and the two sheet metal parts are brought together by the action of the lead screw guide rail 21. Then, the orientation of the joint between the two sheet metal parts is adjusted by driving the guide rail plate 26 to align the joint with the welding gun 10. Then, cylinder 19 drives the welding gun 10 to approach the joint between the two sheet metal parts and welds it. At the same time, the lead screw guide rail 7 drives the welding gun 10 to move longitudinally, so that the joint is welded evenly. After the two sheet metal parts are welded together, clamping rod 18 releases the sheet metal parts, and a collection box can be placed on the worktable 1 to collect the welded sheet metal parts. Then repeat the above operation. Each time a sheet metal part is taken out from the feeding channel, the subsequent sheet metal parts will fall into the feeding channel, and the clamping rod 18 will continue to clamp the sheet metal parts, thus realizing the automatic feeding of multiple sheet metal parts, saving the manual feeding process, which is more convenient and labor-saving.Furthermore, compared to using a robotic arm to load sheet metal parts, this method allows multiple sheet metal parts to be separated and kept at a uniform angle. The clamping rod 18 can grip a single sheet metal part simply by following a fixed trajectory, which is beneficial for improving loading and continuous welding efficiency. When the distance between two adjacent limiting plates 23 changes, the grooved cylinder 27 and the protruding rod 28 also slide relative to each other, and the two always remain in contact. When the sheet metal part is in the unloading chamber, the worm gear 24 on one side can be rotated by the motor 26. Under the transmission cooperation of the grooved cylinder 27, the protruding rod 28, and the worm wheel 25, multiple rollers 22 can rotate simultaneously. The sheet metal part in the unloading chamber can be continuously moved by the contact between the rollers 22 and the sheet metal part. At the same time, the baffle 2 5 is moved laterally by the lead screw guide rail 34, changing the position of its strip-shaped through hole and placing the strip-shaped through hole between two adjacent rollers 22. Then, the lifting rod 36 is extended between two rollers 22 by the lead screw guide rail 37, and the lifting rod 36 is raised by the lead screw guide rail 38. The flat sheet metal part will move upward under the action of the lifting rod 36. Then, the above operation is repeated so that all the sheet metal parts flat on the upper end of the rollers 22 can be pushed and their angles changed until they can smoothly enter the loading channel. Furthermore, in some cases, there may be vertically stacked sheet metal parts in the same feeding channel. When the lifting rod 36 extends into the feeding channel, it will be blocked by the sheet metal parts. Therefore, to prevent the lifting rod 36 from squeezing and deforming the sheet metal parts, if the lifting rod 36 is blocked, the pressure sensor 45 will detect pressure. The lifting rod 36 will then stop its lifting action and move to the next feeding channel before continuing its lifting action. This way, by driving the roller 22 to rotate and the lifting rod 36 to rise, the sheet metal parts in the unloading cavity are kept in continuous motion, reducing their static contact with the limiting plate 23 and preventing feeding from being affected by jamming due to flat laying.

[0038] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A positioning and welding device for sheet metal parts of an ATM machine casing, comprising a worktable (1), characterized in that: A guide rail plate (3) is fixedly connected to one side of the upper end face of the workbench (1). A screw guide rail (7) is installed on one side of the guide rail plate (3). A slider (8) is slidably arranged on the screw guide rail (7). A cylinder (9) is fixedly connected to one side of the slider (8). A welding gun (10) is fixedly connected to the piston end of the cylinder (9). The workbench (1) is also equipped with a sheet metal clamping and positioning assembly; The sheet metal clamping and positioning assembly includes two sets of lead screw guide rails (11) mounted on the upper surface of the workbench (1). A guide rail plate (6) is slidably mounted on the lead screw guide rail (11). A lead screw guide rail (13) is mounted on one side of the upper surface of the guide rail plate (6). A transverse rod (14) is slidably mounted on the lead screw guide rail (13). A flip plate (17) is rotatably mounted on one side of the upper end of the transverse rod (14). A bidirectional lead screw guide rail (19) is mounted on one side of the flip plate (17). Clamping rods (18) are slidably mounted on both sides of the bidirectional lead screw guide rail (19). A visual inspection probe (16) is mounted on one side of the upper end of the transverse rod (14). The workbench (1) is also equipped with sheet metal clamping auxiliary components; The sheet metal clamping auxiliary assembly includes a loading platform (2) fixedly connected to one side of the upper surface of the workbench (1). A support rod (42) is fixedly connected to one side of the upper surface of the loading platform (2). Multiple limiting plates (23) are distributed horizontally and equidistantly on the support rod (42). The foremost limiting plate (23) is fixedly connected to the support rod (42), and the remaining limiting plates (23) are slidably connected to the support rod (42). The limiting plates (23) are provided with grooves through which clamping rods (18) can pass. A baffle three (29) is fixedly connected to one side of the upper surface of the loading platform (2). A baffle four (30) is inserted into and slidably connected to the baffle three (29). A cylinder three (20) is fixedly connected to one side of the upper surface of the loading platform (2). A baffle five (31) is fixedly connected to the piston end of the cylinder three (20). A baffle six (32) is inserted into and slidably connected to the baffle five (31). The loading platform (2) A guide rail plate three (33) is fixedly connected to one side of the upper end face. A screw guide rail four (34) is installed on one side of the guide rail plate three (33). A baffle two (5) is slidably arranged on the screw guide rail four (34). One end face of the baffle two (5) is in contact with the baffle three (29) and the baffle five (31). A guide rail plate four (35) is fixedly connected to one side of the baffle two (5). A screw guide rail five (37) is installed on one side of the guide rail plate four (35). A guide rail plate five (46) is slidably arranged on the screw guide rail five (37). A screw guide rail six (38) is installed on one side of the guide rail plate five (46). A slider two (39) is slidably arranged on the screw guide rail six (38). A lifting rod (36) is fixedly connected to one side of the slider two (39). A pressure sensor (45) is provided at the end of the lifting rod (36). A strip-shaped through hole is provided on one side of the baffle two (5) for the lifting rod (36) to pass through.

2. The positioning and welding device for ATM machine shell sheet metal parts according to claim 1, characterized in that: Two connecting rods (43) are rotatably provided at one end of the frontmost and rearmost limiting plates (23), and two connecting rods (44) are rotatably provided at one end of the remaining limiting plates (23). One end of the connecting rod (43) is rotatably connected to one end of the connecting rod (44), and the ends of two adjacent connecting rods (44) are rotatably connected. A motor (15) is fixedly connected to one side of the upper end of the transverse rod (14), and the output end of the motor (15) is fixedly connected to one side of the flip plate (17).

3. The positioning and welding device for ATM machine shell sheet metal parts according to claim 1, characterized in that: A cylinder 2 (12) is fixedly connected to one side of the upper end of the support rod (42), and the piston end of the cylinder 2 (12) is fixedly connected to one end of the limiting plate (23) on the last side.

4. The positioning and welding device for ATM machine shell sheet metal parts according to claim 1, characterized in that: A cylinder four (21) is fixedly connected to one side of the upper end face of the loading platform (2). A baffle one (4) is fixedly connected to the piston end of the cylinder four (21). One side surface of the baffle one (4) is in contact with the ends of the baffle four (30) and the baffle six (32).

5. The positioning and welding device for ATM machine shell sheet metal parts according to claim 1, characterized in that: Two springs (41) are fixedly connected to one end of the baffle four (30), and the other end of the springs (41) is fixedly connected to one side of the inner cavity of the baffle three (29). Two springs (40) are fixedly connected to one end of the baffle six (32), and the other end of the springs (40) is fixedly connected to one side of the inner cavity of the baffle five (31).

6. The positioning and welding device for ATM machine shell sheet metal parts according to claim 1, characterized in that: The limiting plate (23) is also provided with a rotating friction assembly; The rotating friction assembly includes rollers (22) rotatably disposed at both ends of the upper side of the limiting plate (23). One end of the rollers (22) is fixedly connected to a worm wheel (25), and a worm (24) is rotatably disposed on one side of the limiting plate (23). The worm (24) meshes with the worm wheel (25).

7. The positioning and welding device for an ATM machine casing sheet metal part according to claim 6, characterized in that: The worm (24) is fixedly connected to a grooved cylinder (27) and a protruding rod (28) at both ends. The grooved cylinder (27) and the protruding rod (28) are rotatably mounted on the limiting plate (23). Adjacent grooved cylinders (27) and protruding rods (28) are connected by keyways and slidably connected. A second motor (26) is fixedly connected to one side of the limiting plate (23). The output end of the second motor (26) is fixedly connected to one end of the worm (24).

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