An automatic bending forming machine tool suitable for metal sheets

Abstract

The present invention relates to an automatic bending and forming machine tool suitable for metal plates, comprising a base and a side seat, a plate positioning mechanism for temporarily positioning square plates, an electric slide for driving a die to move to a preset position on the upper surface of the square plate through a lifting mechanism, an electric suction cup for adsorbing the square plate, and a die for moving the square plate above two rollers. The die is then driven down by a lifting mechanism to be squeezed by the rollers on both sides to complete a first bending and forming process, and then the die is driven by a second electric shaft to rotate 90 degrees, and then the die is driven down by a lifting mechanism to complete a second bending and forming process, and finally the die is driven downward by a first electric shaft, and the width and height of the die are adjusted to be reduced by a first telescopic mechanism and a second telescopic mechanism, and the frame-shaped plate that has been bent and formed is automatically discharged by gravity, and is easy to demold, can quickly bend and form frame-shaped plates of different sizes, has high bending and forming efficiency, is easy to operate, and can also avoid scratches on the plate during the forming process.

Description

Technical Field

[0001] The invention belongs to the technical field of metal forming machine tools, and in particular relates to an automatic bending forming machine tool suitable for metal plates. Background Art

[0002] The exterior structure of a kitchen refrigerator features an outer box, whose primary function is to protect and house the internal components. To meet a range of performance requirements, such as corrosion resistance, oxidation resistance, texture, ease of processing, thermal conductivity, and structural strength, the outer box is typically made from high-quality aluminum alloy sheet metal. During the processing, a key piece of equipment is a press brake, which includes a hydraulic lift mechanism and a V-shaped cutter groove. The hydraulic lift mechanism is connected to a cutting tool, with the V-shaped cutter groove positioned below and aligned with the cutter. During the bending process, the cut sheet is first placed on the cutter groove, with the bend line aligned with the cutter. The hydraulic lift mechanism then lowers the cutter, pressing the cutting edge against the bend line of the sheet. As the hydraulic lift mechanism lowers the cutter into the cutter groove, the sheet is squeezed and split into a right-angled structure, completing the bending process.

[0003] However, this process presented several challenges. First, the friction between the sheet metal and the blade grooves during the bending process caused numerous scratches on the sheet metal surface, affecting the quality of the bent sheet metal. Second, the sheet metal could only be bent into a right-angled structure, which necessitated welding two right-angled bent sheets together when producing the outer box. This practice not only increased the bending process and workload, but also the subsequent welding process and workload. Summary of the Invention

[0004] The present invention provides an automatic bending and forming machine tool suitable for metal plates, which can quickly bend and form frame-shaped plates of different sizes, has high bending and forming efficiency, is easy to operate, and can also avoid scratches on the plates during the forming process, thereby improving the bending and forming quality.

[0005] The technical solution adopted by the present invention is:

[0006] The present invention relates to an automatic bending forming machine tool suitable for metal sheets, comprising a base and two side seats, wherein the base is provided with a sheet positioning mechanism, which can position and temporarily store multiple square sheets of the same size, an electric slide is mounted above the base, the electric slide is connected to a lifting frame through a lifting mechanism, the end of the lifting frame is provided with a wheel groove, the wheel groove is connected to an adapter block through an electric shaft 1, an electric shaft 2 is provided on the adapter block, the outer periphery of the electric shaft 2 is respectively provided with a right-angle block, a square block 1, a square block 2 and a square block 3, the electric shaft 2 is connected to the right-angle block through a support seat, and a slide groove 1 and a slide groove 2 are respectively provided on the two end surfaces of the right-angle block, a slide groove 1 and a slide groove 2 are respectively provided in the slide groove 1 and the slide groove 2, a slide rod 1 and a slide rod 2 are respectively slidably provided, and the slide rod 1 and the slide rod 2 are respectively Rod two is respectively connected to square block one and square block three, and square block two is respectively connected to square block one and square block three through telescopic mechanism one and telescopic mechanism two. The right-angle block, square block one, square block two and square block three constitute a die with an outer contour of a square structure. The die can adjust the width and height. Electric suction cup one, electric suction cup two, electric suction cup three and electric suction cup four are respectively provided on the four sides of the die. The two side seats are both provided on the upper surface of the base. A screw rod one is rotatably provided on the side seat. The screw rod one is connected to a motor one provided on the side seat. A slide is provided on the threaded sleeve of the screw rod one. The bottom of the slide is slidably provided on the upper surface of the base. A roller is rotatably provided on the top of the slide. The distance between the two rollers is coupled with the die.

[0007] Furthermore, the telescopic mechanism 1 includes a motor 2 arranged in the square block 1, a slide rod 3 arranged on the side of the square block 1, a slide groove 3 and an internal threaded hole 1 arranged on the side of the square block 2. The motor 2 is connected to a screw rod 2, the front end of the screw rod 2 is arranged in the internal threaded hole 1, and the front end of the slide rod 3 is slidably arranged in the slide groove 3.

[0008] Furthermore, the telescopic mechanism 2 includes a motor 3 arranged in the square block 2, a slide rod 4 arranged on the side surface of the square block 2, a slide groove 4 and an internal threaded hole 2 arranged on the side surface of the square block 3. The motor 3 is connected to a screw rod 3, the front end of the screw rod 3 is arranged in the internal threaded hole 2, and the front end of the slide rod 4 is slidably arranged in the slide groove 4.

[0009] Furthermore, the electric slide includes a slide rail 1, both ends of which are connected to the upper surface of the base through brackets, and an electric slider 1 is provided on the slide rail 1, and the electric slider 1 is connected to the lifting mechanism.

[0010] Furthermore, the lifting mechanism includes a fixed sleeve arranged at the bottom of the electric slider, a hydraulic cylinder is provided at the top of the fixed sleeve, the hydraulic cylinder is connected to a slide rod five, the lower end of the slide rod five is connected to the lifting frame, and the upper end thereof is slidably arranged in the fixed sleeve.

[0011] Furthermore, the plate positioning mechanism includes a platform arranged on the upper surface of the base, and supports are provided on the four sides of the upper surface of the platform. Four screws are threaded through the supports, and the opposite ends of the four screws are connected to slides, and the lower surface of the slide is slidably arranged on the upper surface of the platform.

[0012] Furthermore, the lifting frame is provided with a second slide rail, the second slide rail is provided with a second electric slider, the second electric slider is provided with an electric push rod, the first electric push rod is connected to the second electric push rod through a connecting block, the second electric push rod is connected to a welding gun, which can drive the welding gun to the corner line of the die and can also move along the length direction of the corner line.

[0013] Furthermore, a swivel is provided for rotating on the end of the electric shaft 2 away from the adapter block, and an arc groove is provided on the end of the lifting frame away from the wheel groove. The electric shaft 1 can drive the electric shaft 2 to swing up and down through the adapter block. When the electric shaft 2 swings upward, it can drive the swivel to be stuck in the arc groove.

[0014] Furthermore, a middle seat is provided on the upper surface of the base, and the middle seat is located between the two slide seats, and the opposite ends of the two screw rods are respectively connected to the two sides of the middle seat.

[0015] Furthermore, it also includes a controller, which performs automatic bending and forming operations through the following steps:

[0016] S1. Using the plate positioning mechanism to position and temporarily store multiple square plates of the same size;

[0017] S2. Using the controller to control the electric slide to drive the die to a preset position above the plate positioning mechanism via the lifting mechanism, the controller controls the lifting mechanism to drive the die downward. When the lower surface of the die is in contact with the square plate, the controller controls the electric suction cup to absorb the square plate. The controller controls the lifting mechanism to drive the square plate upward via the die, and then controls the electric slide to drive the square plate to move above the two rollers via the die.

[0018] S3, the controller controls the two motors 1 to adjust the width between the two rollers to the width of the die plus twice the thickness of the square plate, the controller controls the lifting mechanism to drive the die to descend between the two rollers, and the controller controls the electric suction cups 2 and 4 to absorb the bent square plates on both sides, completing one bending forming process;

[0019] S4, the controller controls the lifting mechanism to drive the die to rise above the two rollers, the controller controls the electric shaft 2 to drive the die to rotate forward 90 degrees, the controller controls the two motors 1 to adjust the width between the two rollers to the die width plus 2 times the thickness of the square plate, the controller controls the lifting mechanism to drive the die to descend between the two rollers, and the controller controls the electric suction cup 3 to absorb the bent square plate to complete the secondary bending forming;

[0020] S5, the controller controls the lifting mechanism to drive the die to rise above the roller, the controller controls the second electric shaft to drive the die to rotate 90 degrees in the opposite direction, and the controller controls the second electric slider, the first electric push rod and the second electric push rod to drive the welding gun to move to weld the opening of the frame-shaped plate;

[0021] S6. After the controller controls the electric slide to drive the die to move away from one side of the plate positioning mechanism, and controls the electric shaft 1 to drive the electric shaft 2 to swing downward through the connecting block, the controller controls the electric suction cup 1, the electric suction cup 2, the electric suction cup 3 and the electric suction cup 4 to stop adsorption, and the controller controls the telescopic mechanism 1 and the telescopic mechanism 2 to reduce the width and height of the die.

[0022] Compared with the prior art, the present invention has the following beneficial effects:

[0023] 1. The plate positioning mechanism can be used to position and temporarily store square plates cut to the specified size. The electric slide can be used to drive the die to move to the preset position on the upper surface of the square plate through the lifting mechanism, and then the vertical air suction cup electric suction cup is used to absorb the square plate, so that the plate can be accurately extracted according to the preset position every time to ensure the bending forming size.

[0024] 2. After using the die to move the square plate above the two rollers, the lifting mechanism is used to drive the die down to be squeezed by the rollers on both sides to complete the first bending forming. Then, the electric shaft 2 drives the die to rotate 90 degrees, and the lifting mechanism is used to drive the die down to complete the second bending forming. It can be quickly bent into a frame-shaped plate with high bending efficiency and convenient operation.

[0025] 3. Finally, the electric shaft 1 is used to drive the die to swing downward, and the telescopic mechanism 1 and the telescopic mechanism 2 are used to adjust the width and height of the die to reduce, and the frame-shaped plate is automatically discharged by gravity, which can be automatically demoulded conveniently and quickly.

[0026] 4. The width and height of the die can be easily adjusted by using the telescopic mechanism 1 and the telescopic mechanism 2. It is suitable for bending frame-shaped plates of different sizes and has high applicability.

[0027] 5. Use the lifting mechanism to drive the die down, and then use the roller to roll on the side wall of the die, which can avoid scratching the sheet during the bending process and is beneficial to improving the quality of the bent sheet.

[0028] 6. The present invention can realize automatic and precise loading, automatic bending and welding into frame-shaped plates, and finally automatic demoulding and discharge, realizing the automatic integration of bending, welding and demoulding, with high practicality, greatly improving production efficiency and convenience of operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0030] Figure 2 for Figure 1 A magnified view of point A in the figure;

[0031] Figure 3 for Figure 1 Enlarged view of point B in FIG.

[0032] Figure 4 for Figure 2 Schematic diagram of the C-direction structure;

[0033] Figure 5 It is a schematic diagram of the side structure of the swivel and the lifting frame;

[0034] Figure 6 It is a schematic diagram of the top view of the plate positioning mechanism and the square plate;

[0035] In the figure: 1. Base; 2. Fixing sleeve; 3. Hydraulic cylinder; 4. Electric slider 1; 5. Slide rod 5; 6. Slide rail 1; 7. Controller; 8. Bracket; 9. Support; 10. Screw rod 4; 11. Slide plate; 12. Platform; 13. Middle seat; 14. Side seat; 15. Motor 1; 16. Screw rod 1; 17. Slide seat; 18. Roller; 19. Lifting frame; 20. Slide rail 2; 21. Electric slider 2; 22. Electric push rod 1; 23. Electric push rod 2; 24. Welding gun; 25. Slide 2; 26. Electric suction cup 1; 27. Right angle block; 28. Electric suction cup 2; 29. Slide 1; 30. 1. Electric shaft 2; 31. Adapter block; 32. Slide rod 1; 33. Square block 1; 34. Motor 2; 35. Electric suction cup 3; 36. Screw rod 2; 37. Slide rod 3; 38. Square block 2; 39. Internal threaded hole 1; 40. Slide groove 3; 41. Motor 3; 42. Electric suction cup 4; 43. Frame plate; 44. Screw rod 3; 45. Slide rod 4; 46. Internal threaded hole 2; 47. Slide groove 4; 48. Square block 3; 49. Slide rod 2; 50. Electric shaft 1; 51. Support seat; 52. Wheel groove; 53. Swivel; 54. Width 1; 55. Width 2; 56. Height 1; 57. Height 2. DETAILED DESCRIPTION

[0036] In order to better understand the technical content of the present invention, specific embodiments are provided below, and the present invention is further described in conjunction with the accompanying drawings.

[0037] See also Figures 1 to 6 The present invention provides an automatic bending and forming machine tool suitable for metal plates, comprising a base 1 and two side seats 14. A plate positioning mechanism is provided on one side of the upper surface of the base 1. The plate positioning mechanism can position and temporarily store multiple square plates of the same size.

[0038] An electric slide is mounted above the base 1. The electric slide is connected to a U-shaped lifting frame 19 through a lifting mechanism. The lifting mechanism can drive the lifting frame 19 to move up and down, and the electric slide can drive the lifting mechanism to move horizontally left and right. A wheel groove 52 is provided at the end of one side wall of the lifting frame 19. An electric shaft 50 is horizontally arranged in the wheel groove 52. An adapter block 31 is connected to the middle of the electric shaft 50. The electric shaft 50 can drive the adapter block 31 to rotate up and down around the axis of the electric shaft 50 in the wheel groove 52.

[0039] The adapter block 31 is provided with an electric shaft 2 30, and the outer periphery of the electric shaft 2 30 is respectively spaced apart with a right-angle block 27, a square block 1 33, a square block 2 38 and a square block 3 48. A support seat 51 is fixedly provided at the middle of the electric shaft 2 30, and the support seat 51 is fixedly connected to the inner side of the right-angle block 27. The electric shaft 2 30 can drive the right-angle block 27 to rotate around the axis of the electric shaft 2 30 through the support seat 51. A slide groove 1 29 and a slide groove 2 25 are respectively provided on the two end surfaces of the right-angle block 27. A slide rod 1 32 and a slide rod 2 49 are respectively slidably provided in the slide groove 1 29 and the slide groove 2 25. The slide rod 1 32 and the slide rod 2 49 extend out of the outside of the slide groove 1 29 and the slide groove 2 25 respectively and are fixedly connected to the square block 1 33 and the square block 3 48 respectively. The connected sides of the square block 2 38 are respectively extended by telescopic Mechanism 1 and telescopic mechanism 2 are connected to square block 1 33 and square block 3 48, so that the right-angle block 27, square block 1 33, square block 2 38 and square block 3 48 constitute a die with a square outer contour. When the telescopic mechanism 1 drives square block 2 38 to move relative to square block 1 33, square block 2 38 drives square block 3 48 to move synchronously through the telescopic mechanism 2, and square block 3 48 drives slide bar 2 49 to slide in slide groove 2 25. When the telescopic mechanism 2 drives square block 2 38 to move relative to square block 3 48, square block 2 38 drives square block 1 33 to move synchronously through the telescopic mechanism 1, and square block 1 33 drives slide bar 1 32 to slide in slide groove 1 29, so that the die can adjust the width and height, which is suitable for bending and forming frame-shaped plates 43 of different sizes, and has high applicability.

[0040] The four sides of the die are respectively provided with an electric suction cup 1 26, an electric suction cup 2 28, an electric suction cup 3 35 and an electric suction cup 4 42. The multiple electric suction cups 1 26 are respectively embedded in the sides of the right-angle block 27 and the square block 3 48 that are aligned with each other, the multiple electric suction cups 28 are respectively embedded in the sides of the right-angle block 27 and the square block 1 33 that are aligned with each other, the multiple electric suction cups 3 35 are respectively embedded in the sides of the square block 1 33 and the square block 2 38 that are aligned with each other, and the multiple electric suction cups 42 are respectively embedded in the sides of the square block 2 38 and the square block 3 48 that are aligned with each other. By providing electric suction cups on the four sides of the die, the bent sheet can be adsorbed on the outer side of the die, which can improve the dimensional accuracy of the frame-shaped sheet 43 after bending.

[0041] The two side seats 14 are both fixed on the upper surface of the base 1 and are located on one side of the plate positioning mechanism. A screw 16 is rotatably penetrated on the side seat 14. One end of the screw 16 is fixedly connected to a motor 15. The motor 15 is fixed on the side of the side seat 14. A slide 17 is threadedly sleeved on the screw 16. The bottom of the slide 17 is slidably provided on the upper surface of the base 1. A roller 18 is rotatably provided on the top of the slide 17. The motor 15 is used to drive the screw 16 to rotate on the side seat 14. The screw 16 can drive the slide 17 to slide on the upper surface of the base 1, and then the distance between the two rollers 18 can be adjusted. The distance between the two rollers 18 is coupled with the die, which is suitable for rolling dies of different sizes.

[0042] Preferably, the telescopic mechanism 1 includes a second motor 34 fixedly arranged in the first square block 33, a third slide rod 37 fixedly arranged on the side of the first square block 33 opposite to the right-angle block 27, a third slide groove 40 and an internal threaded hole 39 fixedly arranged on the side of the second square block 38 opposite to the first square block 33, the output shaft of the second motor 34 is fixedly connected to the second screw rod 36, the front end of the second screw rod 36 is arranged in the internal threaded hole 39 and threadedly connected thereto, and the front end of the third slide rod 37 is slidably arranged in the third slide groove 40;

[0043] When the motor 2 34 is used to drive the screw 2 36 to rotate, the screw 2 36 will be screwed in or out of the internal threaded hole 2 46, and the square block 1 33 will drive the slide rod 3 37 to slide in the slide groove 3 40. At the same time, the square block 3 48 will drive the slide rod 2 49 to slide in the slide groove 25, thereby adjusting the width of the die.

[0044] Preferably, the telescopic mechanism 2 includes a motor 3 41 fixedly arranged in the square block 2 38, a slide rod 45 fixedly arranged on the side of the square block 2 38 opposite to the square block 3 48, a slide groove 47 and an internal threaded hole 2 46 provided on the side of the square block 3 48 opposite to the square block 2 38, the output shaft of the motor 3 41 is fixedly connected to the screw rod 3 44, the front end of the screw rod 3 44 is arranged in the internal threaded hole 2 46, and the front end of the slide rod 4 45 is slidably arranged in the slide groove 47;

[0045] When the motor 3 41 drives the screw 3 44 to rotate, the screw 3 44 will be screwed in or out of the internal threaded hole 2 46, and the square block 2 38 will drive the slide rod 4 45 to slide in the slide groove 4 47. At the same time, the square block 1 33 will drive the slide rod 1 32 to slide in the slide groove 1 29, thereby realizing the height adjustment of the die.

[0046] Preferably, the electric slide includes a slide rail 6, both ends of which are fixedly connected to the upper surface of the base 1 through a bracket 8, and an electric slider 4 is provided on the slide rail 6, and the electric slider 4 is connected to the lifting mechanism, and the electric slider 4 is controlled to slide on the slide rail 6, and the electric slider 4 drives the lifting mechanism to move horizontally;

[0047] Preferably, the lifting mechanism includes a fixed sleeve 2 fixed to the bottom of the electric slider 4, a hydraulic cylinder 3 is fixedly provided at the top of the fixed sleeve 2, the telescopic end of the hydraulic cylinder 3 is fixedly connected to a slide rod 5, the lower end of the slide rod 5 is fixedly connected to the lifting frame 19, and the upper end of the slide rod 5 is slidably arranged in the fixed sleeve 2. The hydraulic cylinder 3 is used to drive the slide rod 5 to slide up and down in the fixed sleeve 2, and the slide rod 5 can drive the lifting frame 19 to rise and fall.

[0048] Preferably, the plate positioning mechanism includes a platform 12 fixed on the upper surface of the base 1, and supports 9 are fixed on the four sides of the upper surface of the platform 12. Four screw rods 10 are threaded through the supports 9, and the opposite ends of the four screw rods 10 are connected to slide plates 11. The lower surface of the slide plate 11 is slidably provided on the upper surface of the platform 12. By rotating the screw rod 10, the slide plate 11 can be driven to slide on the platform 12. After stacking multiple square plates on the platform 12, the distance between the two groups of opposite slide plates 11 can be adjusted to adjust the multiple plates to a stacked and aligned state. After adjustment, the slide plate 11 can be slightly moved away from the edge of the square plate by the reverse spiral screw rod 10 to avoid excessive squeezing of the square plate by the slide 17, which makes it difficult to lift the plate. It can also be used to position and temporarily store plates of different sizes.

[0049] Preferably, a slide rail 20 is fixedly provided on the side of the lifting frame 19, an electric slider 21 is provided on the slide rail 20, an electric push rod 1 22 is fixedly provided on the electric slider 21 horizontally, the telescopic end of the electric push rod 1 22 is vertically fixedly connected to the electric push rod 23 through a connecting block, and the telescopic end of the electric push rod 23 is fixedly connected to the welding gun 24. By utilizing the horizontal telescopic movement of the electric push rod 1 22, the vertical telescopic movement of the electric push rod 23 and the forward and backward sliding of the electric slider 21, the welding gun 24 can be driven to move to the corner line of the die, and can also move along the length direction of the corner line to perform continuous welding on the opening of the frame-shaped plate 43.

[0050] Preferably, a swivel 53 is provided for rotating at one end of the electric shaft 2 30 away from the adapter block 31, and an arc-shaped groove is provided at one end of the lifting frame 19 away from the wheel groove 52. The electric shaft 1 50 can drive the electric shaft 2 30 to swing up and down through the adapter block 31. When the electric shaft 2 30 swings upward, the electric shaft 2 30 can drive the swivel 53 to be stuck in the arc-shaped groove, so that both ends of the electric shaft 2 30 can be bent and formed in a supported state, which is beneficial to improving the supporting structural strength of the electric shaft 2 30.

[0051] Preferably, a middle seat 13 is fixedly provided on the upper surface of the base 1, and the middle seat 13 is located between the two slide seats 17. The opposite ends of the two screw rods 16 are respectively connected to the two sides of the middle seat 13, which is beneficial to improve the supporting structural strength of the screw rods 16.

[0052] Preferably, the controller 7 is provided on the support 9, and the automatic bending and forming operation is performed through the following steps:

[0053] S1. The plate positioning mechanism can be used to position and temporarily store multiple stacked square plates. The square plates are cut according to the specified size. The controller 7 controls the telescopic mechanism 1 and the telescopic mechanism 2 to adjust the width and height of the pressing block to the target values.

[0054] S2, use the controller 7 to control the electric slide to drive the die to move to the pre-set position above the plate positioning mechanism through the lifting mechanism, refer to Figure 6 , the preset position means that the square plate is divided into four areas of width 1 54, width 2 55, height 1 56 and height 2 57 according to the bending line (shown by the dotted line in the figure), the die is moved to the middle of the width 1 54 area, and the middle of the die is aligned with the middle of the width 1 54 area, the controller 7 controls the lifting mechanism to drive the die down, when the lower surface of the die is in contact with the square plate, the controller 7 controls the electric suction cup 1 26 to absorb the square plate, the controller 7 controls the lifting mechanism to drive the square plate to rise through the die, and then controls the electric slide to drive the square plate to move to above the two rollers 18 through the die, so that the plate can be accurately extracted according to the preset position to ensure the bending forming size;

[0055] S3, the controller 7 controls the two motors 15 to adjust the width between the two rollers 18 to be the width of the die plus 2 times the thickness of the square plate, and the inner ends of the rollers 18 are vertically aligned with the corresponding side surfaces of the die plus a plate thickness position. The controller 7 controls the lifting mechanism to drive the die to be lowered into the space between the two rollers 18, so that the two rollers 18 roll to the upper ends of the two side walls of the die, respectively. This can avoid scratches on the plate during the bending process, which is beneficial to improving the quality of the bent plate. During the rolling process, the controller 7 controls the electric suction cup 2 28 and the electric suction cup 4 42 to respectively absorb the high 1 56 and high 2 57 areas after the bending on both sides, completing one bending process;

[0056] S4, the controller 7 controls the lifting mechanism to drive the die to rise above the two rollers 18, the controller 7 controls the electric shaft 2 30 to drive the die to rotate 90 degrees counterclockwise, the controller 7 controls the two motors 15 to adjust the width between the two rollers 18 to the die width (the height of the original die) plus 2 times the thickness of the square plate, the inner side ends of the rollers 18 are vertically aligned with the corresponding side faces of the die plus a plate thickness position, the controller 7 controls the lifting mechanism to drive the die to descend between the two rollers 18, the controller 7 controls the electric suction cup 3 35 to absorb the bent square plate, completing the secondary bending forming, which can quickly bend and form the frame-shaped plate 43, with high bending efficiency and convenient bending forming operation;

[0057] S5, the controller 7 controls the lifting mechanism to drive the die to rise above the roller 18, the controller 7 controls the electric shaft 2 30 to drive the die to rotate 90 degrees in the opposite direction, the controller 7 controls the electric push rod 1 22 and the electric push rod 23 to drive the welding gun 24 to move to the opening of the frame-shaped plate 43, and then controls the electric slide 2 21 to slide on the slide rail 2 20 to the opening of the frame-shaped plate 43, driving the welding gun 24 to move back and forth continuously to weld, so that automatic welding can be performed after bending and forming;

[0058] S6, controller 7 controls the electric slide to drive the die to move away from one side of the plate positioning mechanism (right side), controls electric shaft 1 50 to drive electric shaft 2 30 to swing downward 90° through the connecting block, and then controller 7 controls electric suction cup 1 26, electric suction cup 2 28, electric suction cup 3 35 and electric suction cup 4 42 to stop adsorption. Controller 7 controls telescopic mechanism 1 and telescopic mechanism 2 to drive the width and height of the die to decrease, and uses gravity to automatically discharge the frame-shaped plate 43, which can be automatically demolded conveniently and quickly.

[0059] The present invention can realize automatic and precise loading, automatic bending and welding into a frame-shaped plate 43, and finally automatic demoulding and discharge, realizing the automatic integration of bending, welding and demoulding, has high practicality, and greatly improves production efficiency and operational convenience.

[0060] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as within the scope of protection of the present invention.

Claims

1. An automatic bending and forming machine tool suitable for metal sheets, characterized by: The cam is provided with a plurality of movable plates, and the movable plates are connected to the movable plate by a lifting mechanism, and the movable plates are connected to the movable plate by a lifting mechanism. The movable plates are connected to the movable plate by a lifting mechanism, and the movable plates are connected to the movable plate by a lifting mechanism. The movable plates are connected to the movable plate by a lifting mechanism. The movable plates are connected to the movable plate by a lifting mechanism. The movable plates are connected to the movable plate by a lifting mechanism. One and square block three, the square block two is connected to the square block one and square block three by telescopic mechanism one and telescopic mechanism two respectively, the right-angle block, square block one, square block two and square block three constitute a die with an outer contour of a square structure, the die can adjust the width and height, the four sides of the die are respectively provided with electric suction cup one, electric suction cup two, electric suction cup three and electric suction cup four, the two side seats are both provided on the upper surface of the base, the side seat is rotatably provided with a screw rod one, the screw rod one is connected to a motor one provided on the side seat, the screw rod one is provided with a slide seat on a threaded sleeve, the bottom of the slide seat is slidably provided on the upper surface of the base, the top of the slide seat is rotatably provided with a roller, and the distance between the two rollers is coupled with the die; The telescopic mechanism 1 includes a motor 2 arranged in the square block 1, a slide rod 3 arranged on the side of the square block 1, a slide groove 3 and an internal threaded hole 1 arranged on the side of the square block 2, the motor 2 is connected to a screw rod 2, the front end of the screw rod 2 is arranged in the internal threaded hole 1, and the front end of the slide rod 3 is slidably arranged in the slide groove 3; The end of the electric shaft 2 away from the adapter block is provided with a swivel for rotation, and the end of the lifting frame away from the wheel groove is provided with an arc groove. The electric shaft 1 can drive the electric shaft 2 to swing up and down through the adapter block. When the electric shaft 2 swings upward, it can drive the swivel to get stuck in the arc groove.

2. The automatic bending and forming machine tool for metal sheets according to claim 1, characterized in that: The telescopic mechanism 2 includes a motor 3 arranged in the square block 2, a slide rod 4 arranged on the side surface of the square block 2, a slide groove 4 and an internal threaded hole 2 arranged on the side surface of the square block 3. The motor 3 is connected to a screw rod 3, the front end of the screw rod 3 is arranged in the internal threaded hole 2, and the front end of the slide rod 4 is slidably arranged in the slide groove 4.

3. An automatic bending and forming machine tool for metal sheets according to any one of claims 1 to 2, characterized in that: The electric slide includes a slide rail 1, both ends of which are connected to the upper surface of the base through brackets. An electric slider 1 is provided on the slide rail 1, and the electric slider 1 is connected to the lifting mechanism.

4. The automatic bending and forming machine tool for metal sheets according to claim 3, characterized in that: The lifting mechanism includes a fixed sleeve arranged at the bottom of the electric slider, a hydraulic cylinder is provided at the top of the fixed sleeve, the hydraulic cylinder is connected to a slide rod five, the lower end of the slide rod five is connected to the lifting frame, and the upper end thereof is slidably arranged in the fixed sleeve.

5. The automatic bending and forming machine tool for metal sheets according to any one of claims 1 to 2, characterized in that: The plate positioning mechanism includes a platform arranged on the upper surface of the base, and supports are provided on the four sides of the upper surface of the platform. Four screw rods are threaded through the supports, and the opposite ends of the four screw rods are connected to slides, and the lower surface of the slide is slidably arranged on the upper surface of the platform.

6. An automatic bending and forming machine tool for metal sheets according to any one of claims 1 to 2, characterized in that: The lifting frame is provided with a second slide rail, the second slide rail is provided with a second electric slider, the second electric slider is provided with an electric push rod, the first electric push rod is connected to the second electric push rod through a connecting block, the second electric push rod is connected to a welding gun, which can drive the welding gun to move to the corner line of the die and can also move along the length direction of the corner line.

7. An automatic bending and forming machine tool for metal sheets according to any one of claims 1 to 2, characterized in that: A middle seat is further provided on the upper surface of the base, and the middle seat is located between the two sliding seats. The opposite ends of the two screw rods are respectively connected to the two sides of the middle seat.

8. The automatic bending and forming machine tool for metal sheets according to claim 6, characterized in that: It also includes a controller that performs automatic bending and forming operations through the following steps: S1. Using the plate positioning mechanism to position and temporarily store multiple square plates of the same size; S2. Using the controller to control the electric slide to drive the die to a preset position above the plate positioning mechanism via the lifting mechanism, the controller controls the lifting mechanism to drive the die downward. When the lower surface of the die is in contact with the square plate, the controller controls the electric suction cup to absorb the square plate. The controller controls the lifting mechanism to drive the square plate upward via the die, and then controls the electric slide to drive the square plate to move above the two rollers via the die. S3, the controller controls the two motors 1 to adjust the width between the two rollers to the width of the die plus twice the thickness of the square plate, the controller controls the lifting mechanism to drive the die to descend between the two rollers, and the controller controls the electric suction cups 2 and 4 to absorb the bent square plates on both sides, completing one bending forming process; S4, the controller controls the lifting mechanism to drive the die to rise above the two rollers, the controller controls the electric shaft 2 to drive the die to rotate forward 90 degrees, the controller controls the two motors 1 to adjust the width between the two rollers to the die width plus 2 times the thickness of the square plate, the controller controls the lifting mechanism to drive the die to descend between the two rollers, and the controller controls the electric suction cup 3 to absorb the bent square plate to complete the secondary bending forming; S5, the controller controls the lifting mechanism to drive the die to rise above the roller, the controller controls the second electric shaft to drive the die to rotate 90 degrees in the opposite direction, and the controller controls the second electric slider, the first electric push rod and the second electric push rod to drive the welding gun to move to weld the opening of the frame-shaped plate; S6. After the controller controls the electric slide to drive the die to move away from one side of the plate positioning mechanism, and controls the electric shaft 1 to drive the electric shaft 2 to swing downward through the connecting block, the controller controls the electric suction cup 1, the electric suction cup 2, the electric suction cup 3 and the electric suction cup 4 to stop adsorption, and the controller controls the telescopic mechanism 1 and the telescopic mechanism 2 to reduce the width and height of the die.

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