Rolling welding machine

Abstract

The invention relates to the technical field of sheet processing, and discloses an edge rolling welding machine which comprises a base, a feeding mechanism, a rolling mechanism, a rounding mechanism, a material moving mechanism, a plate end positioning mechanism, a welding seam positioning mechanism, an embracing mechanism, an edge pressing mechanism and a welding mechanism. According to the edge rolling welding machine, the actions such as automatic feeding, edge rolling, transferring, positioning, welding seam determining, seam aligning and welding of sheets are achieved, manual intervention is not needed in the whole process, the edge rolling and welding quality is guaranteed, the automation degree of equipment is improved, and the machining efficiency and the forming consistency are remarkably improved.

Description

Technical Field

[0001] The invention relates to the technical field of sheet material processing, in particular to a curling welding machine. Background Art

[0002] In order to ensure the quality of forming and the consistency of finished products, the manual rolling and welding methods can no longer meet the processing requirements for processing flat sheets into hollow cylindrical workpieces. On the one hand, the rolling effect is poor and the welding quality cannot be guaranteed; on the other hand, the manual labor is large and the processing efficiency is low during the loading and rolling process to the welding process. Therefore, it is hoped that a set of fully automated equipment will be designed to meet the processing requirements. Summary of the invention

[0003] The object of the present invention is to provide a curling and welding machine to solve the problems mentioned in the above-mentioned background technology, realize automatic completion of sheet curling and welding processing, improve processing efficiency, and ensure forming quality.

[0004] To achieve the above object, the present invention adopts the following technical solutions:

[0005] A rounding welding machine comprises a base, a feeding mechanism, a rolling mechanism, a rounding mechanism, a material moving mechanism, a plate end positioning mechanism, a weld positioning mechanism, an embracing mechanism, a side pressing mechanism and a welding mechanism, wherein:

[0006] A frame and support frames located on both sides of the frame are arranged on the base, and a rolling station and a welding station are arranged on the frame;

[0007] The feeding mechanism is located on one side of the rolling station, and is used to transport the sheet to be processed to the rolling station;

[0008] The roller pressing mechanism is located at the rolling station and is used to bend the sheet fed by the feeding mechanism;

[0009] The rounding mechanism is located at the rolling station, and is used to guide the bent sheet to repeatedly enter the rolling mechanism to achieve rolling;

[0010] The material transfer mechanism is arranged on the frame, and is used to transfer the rolled sheet material with the open seam facing upward from the rolling station to the welding station;

[0011] The plate end positioning mechanism is located at the welding station and is used for axial positioning of the sheet;

[0012] The weld positioning mechanism includes a reference sheet, which is used to determine the target weld position of the sheet before welding;

[0013] The embracing mechanism is located at the welding station and is used to drive the two seam edges of the open seam of the sheet material to approach each other and abut against different sides of the reference sheet;

[0014] The edge pressing mechanism is located at the welding station, and is used to press the two seam edges against the reference sheet and leave a welding position, so that the open seam of the sheet remains in a closed state;

[0015] The welding mechanism is used to weld two seam edges.

[0016] As an optional solution, the full circle mechanism includes a guide frame, a first cylinder and a first motor, wherein:

[0017] The guide frame is installed on the base and arranged around the sheet to be bent, and a plurality of guide wheels for rolling contact with the sheet are arranged on the guide frame;

[0018] The first cylinder is mounted on the base, and a friction wheel is arranged on the output rod of the first cylinder, and the first cylinder is used to drive the friction wheel to contact or stay away from the sheet;

[0019] The first motor is used to drive the friction wheel to rotate, and drive the sheet in contact with the friction wheel to move along the guide wheel.

[0020] As an optional solution, the material moving mechanism includes a moving frame, a second motor and a second cylinder, wherein:

[0021] A linear guide rail is arranged on the rack along the axial direction of the rolled sheet, and the moving rack is slidably arranged on the linear guide rail;

[0022] The second motor is mounted on the frame and located at one end of the linear guide rail, a first pulley is arranged on the output shaft of the second motor, a second pulley is arranged on the frame and located at the other end of the linear guide rail, a belt is arranged between the first pulley and the second pulley, and a point on the belt is connected to the moving frame;

[0023] A plurality of second cylinders are installed on the mobile frame, each of which is located on the inner side of the sheet and is distributed in a ring in a vertical plane, and a push plate is provided on the output rod of each second cylinder, and the second cylinder is used to drive the push plate to switch alternately to the first position and the second position;

[0024] When the push plate is in the first position, the push plate opens outward to limit the end surface of the sheet;

[0025] When the push plate is in the second position, the push plate is retracted inwards to avoid the sheet material.

[0026] As an optional solution, the rolling mechanism includes a rolling frame, a third motor and a fourth motor, wherein:

[0027] A guide rod is erected on the frame, a roller pressing frame is slidably arranged on the guide rod and is located above the frame, and two upper rollers are arranged on the roller pressing frame;

[0028] The frame is provided with a lower roller, which is located below the middle position of the two upper rollers. The sheet to be bent or to be bent repeatedly passes between the two upper rollers and the lower roller.

[0029] The third motor is arranged on the roller pressing frame, and the third motor is used to drive the two upper rollers to rotate;

[0030] The fourth motor is connected to the roller pressing frame through a screw nut pair, and the fourth motor is used to drive the roller pressing frame to approach or move away from the row frame to adjust the distance between the two upper rollers and the lower roller.

[0031] As an optional solution, the weld positioning mechanism further includes a flip arm and a third cylinder, wherein:

[0032] One end of the flip arm is mounted on a support frame at one side, and the other end of the flip arm is provided with a vertical plate, and the reference plate is mounted on the vertical plate;

[0033] The third cylinder is installed on the support frame, the output rod of the third cylinder is connected to the vertical plate, and the third cylinder is used to drive the reference plate to stand upright on the row frame or on the support frame close to one side.

[0034] As an optional solution, the clasping mechanism includes a fourth cylinder and a fifth cylinder, wherein:

[0035] The fourth cylinder is installed on the support frames on both sides and is located on the two sides of the sheet. The output rod of the fourth cylinder is provided with a side pressure plate. The fourth cylinders on both sides are used to drive the two side pressure plates to synchronously press against or away from the outer surface of the sheet.

[0036] The fifth cylinder is installed on the support frames on both sides and is located above the two sides of the sheet. An embracing plate is arranged on the output rod of the fifth cylinder. The fifth cylinders on both sides are used to drive the two embracing plates to synchronously push or move away from the outer surface of the sheet. The embracing plate is provided with a first roller that is in rolling contact with the sheet.

[0037] As an optional solution, the edge holding mechanism includes a swing arm and a sixth cylinder, wherein:

[0038] A plurality of swing arms are installed on the support frames on both sides and arranged along the seam edge, one end of the swing arm is rotatably connected to the support frame, and the other end of the swing arm is provided with a pressing block;

[0039] The sixth cylinder is installed on the supporting frame, the output rod of the sixth cylinder is connected with the middle part of the swing arm, and the sixth cylinder is used for driving the pressing block to press the seam edge onto the row frame or release the seam edge.

[0040] As an optional solution, the plate end positioning mechanism includes a first positioning rod and a second positioning rod, wherein:

[0041] The first positioning rod is installed on the frame and is located at the feeding end of the welding station, and the second positioning rod is installed on the frame and is located at the discharging end of the welding station;

[0042] The first positioning rod can be retracted and retracted, and is used to retract when the sheet enters the welding station to avoid the sheet, and extend when the sheet touches the second positioning rod to limit one end of the sheet;

[0043] The second positioning rod can be close to or away from the first positioning rod. The second positioning rod is used to limit the other end of the sheet entering the welding station and push the sheet to move toward the first positioning rod.

[0044] As an optional solution, the plate end positioning mechanism further includes a first positioning plate and a second positioning plate, wherein:

[0045] The first positioning plate is installed on the base and is located at the feeding end of the welding station, and the second positioning plate is installed on the base and is located at the discharging end of the welding station;

[0046] The first positioning plate can rotate, and is used to be retracted inwards to avoid the sheet when the sheet enters the welding station, and to be opened outwards to limit one end of the sheet when the sheet touches the second positioning plate;

[0047] The second positioning plate can be close to or away from the first positioning plate, and the second positioning plate is used to limit the other end of the sheet entering the welding station and push the sheet to move toward the first positioning plate;

[0048] The first positioning rod and the second positioning rod act on the upper edge of the end of the sheet, and the first positioning plate and the second positioning plate act on the lower edge of the end of the sheet.

[0049] As an optional solution, the feeding mechanism includes a feeding frame and a fifth motor, wherein:

[0050] The feed rack is erected on the base and located on one side of the rack. Two conveying rollers are arranged vertically and spaced apart from each other, and the sheet passes between the two conveying rollers.

[0051] The fifth motor is installed on the feeding frame, and the output shaft of the fifth motor is connected with any one of the conveying rollers.

[0052] Beneficial effects of the present invention:

[0053] The rolling welding machine realizes automatic feeding, rolling, transfer, positioning, weld seam determination, seam alignment, welding and other actions of sheets. The entire process does not require human intervention, which ensures the quality of rolling and welding, improves the degree of automation of the equipment, and significantly improves processing efficiency and forming consistency. BRIEF DESCRIPTION OF THE DRAWINGS

[0054] Figure 1 is a first perspective view of a crimping welding machine provided by an embodiment of the present invention;

[0055] Figure 2is a second viewing angle diagram of the crimping welding machine provided by an embodiment of the present invention;

[0056] Figure 3 is a third viewing angle diagram of the crimping welding machine provided by an embodiment of the present invention;

[0057] Figure 4 Schematic diagram of the structure of the full circle mechanism involved in the embodiment of the present invention;

[0058] Figure 5 It is a structural schematic diagram of a material transfer mechanism and a rolling mechanism involved in an embodiment of the present invention;

[0059] Figure 6 It is a structural schematic diagram of a weld positioning mechanism and a side pressing mechanism involved in an embodiment of the present invention;

[0060] Figure 7 is a structural schematic diagram of an embracing mechanism involved in an embodiment of the present invention;

[0061] Figure 8 It is a structural schematic diagram of a plate end positioning mechanism and a material moving mechanism involved in an embodiment of the present invention;

[0062] Fig. 9 It is a schematic structural diagram of a feeding mechanism involved in an embodiment of the present invention.

[0063] In the attached figure:

[0064] 1. Base; 11. Frame; 12. Support frame; 13. Third roller; 14. Guide rod; 15. Tenth cylinder; 16. Support plate; 17. Fourth roller; 18. Positioning groove;

[0065] 2. Feeding mechanism; 21. Feeding rack; 22. Fifth motor; 23. Conveying roller; 24. Supporting rack; 25. Fifth roller;

[0066] 3. Rolling mechanism; 31. Rolling frame; 32. Third motor; 33. Fourth motor; 34. Upper roller; 35. Lower roller; 36. Ninth cylinder; 37. Baffle plate;

[0067] 4. Full circle mechanism; 41. Guide frame; 42. First cylinder; 43. First motor; 44. Guide wheel; 45. Friction wheel; 46. Eighth cylinder; 47. Inner support plate;

[0068] 5. Material transfer mechanism; 51. Moving frame; 52. Second motor; 53. Second cylinder; 54. Belt; 55. Push plate; 56. Seventh cylinder; 57. Second roller;

[0069] 6. Plate end positioning mechanism; 61. First positioning rod; 62. Second positioning rod; 63. First positioning plate; 64. Second positioning plate;

[0070] 7. Welding seam positioning mechanism; 71. Reference plate; 72. Turning arm; 73. Third cylinder; 74. Vertical plate;

[0071] 8. embracing mechanism; 81. fourth cylinder; 82. fifth cylinder; 83. side pressure plate; 84. embracing plate; 85. first roller;

[0072] 9. Edge pressing mechanism; 91. Swing arm; 92. Sixth cylinder; 93. Press block;

[0073] 10. Welding mechanism. DETAILED DESCRIPTION

[0074] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only parts related to the present invention, rather than all structures, are shown in the accompanying drawings.

[0075] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0076] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0077] In the description of this embodiment, terms such as "up", "down", "left", and "right" and other orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings and are only for the convenience of description and simplification of operation, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0078] In addition, the terms "first", "second", etc. are merely used to distinguish in description and have no special meanings.

[0079] See also Figures 1 to 9 As shown, this embodiment provides a rounding welding machine, including a base 1, a feeding mechanism 2, a rolling mechanism 3, a rounding mechanism 4, a material moving mechanism 5, a plate end positioning mechanism 6, a weld positioning mechanism 7, an embracing mechanism 8, a side pressing mechanism 9 and a welding mechanism 10, wherein:

[0080] The base 1 is provided with a frame 11 and support frames 12 located on both sides of the frame 11, and the frame 11 is provided with a rolling station and a welding station;

[0081] The feeding mechanism 2 is located at one side of the curling station, and is used to transport the sheet to be processed to the curling station;

[0082] The rolling mechanism 3 is located at the rolling station, and is used to bend the sheet fed by the feeding mechanism 2;

[0083] The rounding mechanism 4 is located at the rolling station, and is used to guide the bent sheet to repeatedly enter the rolling mechanism 3 to achieve rolling;

[0084] The material transfer mechanism 5 is arranged on the rack 11, and is used to transfer the rolled sheet material with the open seam facing upward from the rolling station to the welding station;

[0085] The plate end positioning mechanism 6 is located at the welding station, and the plate end positioning mechanism 6 is used for axial positioning of the sheet;

[0086] The weld positioning mechanism 7 includes a reference plate 71, which is used to determine the target weld position of the sheet before welding;

[0087] The embracing mechanism 8 is located at the welding station, and is used to drive the two seam edges of the open seam of the sheet material to approach each other and abut against different sides of the reference sheet 71;

[0088] The edge pressing mechanism 9 is located at the welding station, and is used to press the two seam edges against the reference sheet 71 and leave a welding position, so that the open seam of the sheet remains in a closed state;

[0089] The welding mechanism 10 is used to weld two seam edges.

[0090] As a result, the automatic feeding, rolling, transfer, positioning, weld seam determination, seam alignment, welding and other actions of the sheet are realized. The whole process does not require human intervention, which ensures the quality of rolling and welding, improves the degree of automation of the equipment, and significantly improves the processing efficiency and forming consistency.

[0091] Optionally, see Figure 4 The full-circle mechanism 4 includes a guide frame 41, a first cylinder 42 and a first motor 43, wherein:

[0092] The guide frame 41 is mounted on the base 1 and arranged around the sheet to be bent, and a plurality of guide wheels 44 are provided on the guide frame 41 for rolling contact with the sheet;

[0093] The first cylinder 42 is mounted on the base 1, and a friction wheel 45 is provided on the output rod of the first cylinder 42, and the first cylinder 42 is used to drive the friction wheel 45 to contact or move away from the sheet;

[0094] The first motor 43 is used to drive the friction wheel 45 to rotate, and drive the sheet in contact with the friction wheel 45 to move along the guide wheel 44 .

[0095] Thus, the friction wheel 45 drives the sheet to move along the guide wheel 44, guiding the sheet to repeatedly enter the rolling mechanism 3 for rolling again, thereby improving the rolling quality and forming consistency, so that the dimensional accuracy is high when it is subsequently welded into a cylindrical shape.

[0096] Optionally, see Figure 5 and Figure 8 The material moving mechanism 5 includes a moving frame 51, a second motor 52 and a second cylinder 53, wherein:

[0097] A linear guide rail is arranged on the rack 11 along the axial direction of the rolled sheet, and the moving rack 51 is slidably arranged on the linear guide rail;

[0098] The second motor 52 is mounted on the frame 11 and is located at one end of the linear guide rail. A first pulley is provided on the output shaft of the second motor 52. A second pulley is provided on the frame 11 and is located at the other end of the linear guide rail. A belt 54 is provided between the first pulley and the second pulley. A portion of the belt 54 is connected to the moving frame 51.

[0099] A plurality of second cylinders 53 are installed on the moving frame 51. Each second cylinder 53 is located on the inner side of the sheet and is distributed in a ring in a vertical plane. A push plate 55 is provided on the output rod of each second cylinder 53. The second cylinder 53 is used to drive the push plate 55 to switch alternately between the first position and the second position.

[0100] When the push plate 55 is in the first position, the push plate 55 opens outward to limit the end surface of the sheet;

[0101] When the push plate 55 is at the second position, the push plate 55 is retracted inwards to avoid the sheet.

[0102] Thus, through the reciprocating movement, opening and closing action of the push plate 55, the sheets rolled at the rolling station are moved out of the rolling station one by one to achieve the rolling unloading process through the butt welding process; the second cylinder 53 here is a rotary cylinder.

[0103] Furthermore, the material moving mechanism 5 further includes a seventh cylinder 56, which is mounted on the row frame 11 and the guide frame 41, and a second roller 57 is arranged on the output rod of the seventh cylinder 56, and the seventh cylinder 56 is used to drive the second roller 57 to approach or move away from the outer surface of the sheet;

[0104] When the second roller 57 approaches the sheet, the sheet is pushed away from the guide wheel 44 .

[0105] Therefore, the second roller 57 pushes the sheet away from the guide wheel 44 , and in conjunction with the action of the push plate 55 , the axial movement of the sheet can be easily achieved, avoiding interference caused by the guide wheel 44 .

[0106] Furthermore, the rounding mechanism 4 further includes an eighth cylinder 46, which is mounted on the moving frame 51, and an inner support plate 47 is provided on the output rod of the eighth cylinder 46, and the eighth cylinder 46 is used to drive the inner support plate 47 to approach or move away from the inner surface of the sheet;

[0107] When the inner support plate 47 approaches the sheet, the sheet is pushed toward the guide wheel 44 .

[0108] Thus, the sheet is pressed against the guide wheel 44 by the inner support plate 47, so that the sheet after being bent is not easily deformed and can accurately enter the rolling mechanism 3 again.

[0109] Furthermore, third rollers 13 are respectively provided on the rack 11 and located on the feed side and the discharge side of the rolling mechanism 3 , and the third rollers 13 are used to guide the sheet coming out of the rolling mechanism 3 toward the guide wheel 44 , and to guide the sheet moving along the guide wheel 44 to enter the rolling mechanism 3 .

[0110] Optionally, see Figure 5 The rolling mechanism 3 includes a rolling frame 31, a third motor 32 and a fourth motor 33, wherein:

[0111] A guide rod 14 is erected on the frame 11, and a roller press frame 31 is slidably disposed on the guide rod 14 and is located above the frame 11. Two upper rollers 34 are disposed on the roller press frame 31;

[0112] The frame 11 is provided with a lower roller 35, which is located below the middle position of the two upper rollers 34. The sheet to be bent or to be repeatedly bent passes between the two upper rollers 34 and the lower roller 35.

[0113] The third motor 32 is disposed on the roller pressing frame 31, and the third motor 32 is used to drive the two upper rollers 34 to rotate;

[0114] The fourth motor 33 is connected to the roller press frame 31 through a screw nut pair. The fourth motor 33 is used to drive the roller press frame 31 to move closer to or away from the frame 11 to adjust the distance between the two upper rollers 34 and the lower roller 35.

[0115] Thus, the sheet is bent by the two upper rollers 34 and the lower roller 35 , and the bending curvature of the sheet is adjusted by adjusting the distance between the two upper rollers 34 and the lower roller 35 , so that the sheet gradually forms a target rolled shape.

[0116] Furthermore, a ninth cylinder 36 is provided on the rolling frame 31 and located on the feeding side of the rolling mechanism 3, and a material baffle plate 37 is provided on the output rod of the ninth cylinder 36. The ninth cylinder 36 is used to drive the material baffle plate 37 to prevent the rolled sheet from entering the rolling mechanism 3 again.

[0117] Thus, the material baffle plate 37 blocks the rolled sheet from continuing to enter the rolling mechanism 3, especially before the material shifting mechanism 5 is actuated, the material baffle plate 37 also serves as a positioning member to position one end of the sheet so that both ends of the sheet are located outside the rolling mechanism 3, so that the rolling mechanism 3 does not interfere with the axial movement of the sheet; in addition, the material baffle plate 37 is also used to block the next sheet from entering the rolling mechanism 3 too early when the rolled sheet leaves the rolling station, so as to avoid mutual interference.

[0118] Optionally, see Figure 6 The weld positioning mechanism 7 further includes a flip arm 72 and a third cylinder 73, wherein:

[0119] One end of the flip arm 72 is mounted on the support frame 12 on one side, and the other end of the flip arm 72 is provided with a vertical plate 74, and the reference plate 71 is mounted on the vertical plate 74;

[0120] The third cylinder 73 is installed on the support frame 12, and the output rod of the third cylinder 73 is connected to the vertical plate 74. The third cylinder 73 is used to drive the reference plate 71 to stand upright on the rack 11 or on the support frame 12 on one side.

[0121] Thus, the reference plate 71 is driven by the flip arm 72 to realize position switching. When the reference plate 71 is erected on the rack 11, it is convenient to position the two seam edges of the sheet. When the reference plate 71 is against the support frame 12, the reference plate 71 gives way to the welding mechanism 10 without affecting the welding action.

[0122] Furthermore, a positioning groove 18 is provided on the rack 11 corresponding to the vertical position of the reference plate 71, so that the reference plate 71 can be accurately placed in place, thereby ensuring the alignment accuracy of the two seam edges; the thickness of the reference plate 71 here is consistent with the size of the weld to be formed.

[0123] Optionally, see Figure 7 The embracing mechanism 8 includes a fourth cylinder 81 and a fifth cylinder 82, wherein:

[0124] The fourth cylinder 81 is installed on the support frames 12 on both sides and is located on the two sides of the sheet. The output rod of the fourth cylinder 81 is provided with a side pressure plate 83. The fourth cylinder 81 on both sides is used to drive the two side pressure plates 83 to synchronously press against or away from the outer surface of the sheet.

[0125] The fifth cylinder 82 is installed on the support frames 12 on both sides and is located above both sides of the sheet. An embracing plate 84 is provided on the output rod of the fifth cylinder 82. The fifth cylinder 82 on both sides is used to drive the two embracing plates 84 to synchronously push or move away from the outer surface of the sheet. The embracing plate 84 is provided with a first roller 85 that rolls in contact with the sheet.

[0126] Thus, through the coordinated action of the side pressure plate 83 and the embracing plate 84, the end of the sheet material close to the seam edge is gradually bent inward until the open seam is closed, simulating the action of artificially preforming the sheet material.

[0127] In addition, in actual situations, the position of the opening seam is not necessarily centered, but due to the presence of the material blocking plate 37, the deviation is not large; by moving one seam edge beyond the centered position against the reference plate 71, the sheet can be adaptively moved in the circumferential direction, so that the other seam edge can finally accurately abut against the reference plate 71.

[0128] Furthermore, a tenth cylinder 15 is disposed on the base 1 and below both sides of the sheet, a support plate 16 is disposed on the tenth cylinder 15, and a fourth roller 17 that rolls in contact with the sheet is disposed on the support plate 16.

[0129] Thus, the vertical displacement of the sheet during embracing is compensated by the support plate 16, and the sheet is reliably supported.

[0130] Optionally, see Figure 6 , the edge holding mechanism 9 includes a swing arm 91 and a sixth cylinder 92, wherein:

[0131] A plurality of swing arms 91 are mounted on the support frames 12 on both sides and arranged along the seam edge, one end of the swing arm 91 is rotatably connected to the support frame 12, and a pressing block 93 is disposed at the other end of the swing arm 91;

[0132] The sixth cylinder 92 is installed on the support frame 12, and the output rod of the sixth cylinder 92 is connected to the middle part of the swing arm 91. The sixth cylinder 92 is used to drive the pressure block 93 to press the seam edge onto the row frame 11 or release the seam edge.

[0133] Therefore, the swing arm 91 drives the pressing block 93 to press the seam edge, thereby preventing the sheet from shifting and ensuring the quality of subsequent welding.

[0134] Optionally, see Figure 8 The plate end positioning mechanism 6 includes a first positioning rod 61 and a second positioning rod 62, wherein:

[0135] The first positioning rod 61 is installed on the frame 11 and is located at the feeding end of the welding station, and the second positioning rod 62 is installed on the frame 11 and is located at the discharging end of the welding station;

[0136] The first positioning rod 61 can be retracted and retracted. The first positioning rod 61 is used to retract when the sheet enters the welding station to avoid the sheet, and extend when the sheet touches the second positioning rod 62 to limit one end of the sheet;

[0137] The second positioning rod 62 can be close to or away from the first positioning rod 61 . The second positioning rod 62 is used to limit the other end of the sheet entering the welding station and push the sheet to move toward the first positioning rod 61 .

[0138] Therefore, the first positioning rod 61 and the second positioning rod 62 cooperate to ensure that the sheet is accurately positioned at the welding station so as to accurately press the seam edge later; specifically, the second positioning rod 62 can be moved by a motor screw transmission pair.

[0139] Furthermore, the plate end positioning mechanism 6 further includes a first positioning plate 63 and a second positioning plate 64, wherein:

[0140] The first positioning plate 63 is installed on the base 1 and is located at the feeding end of the welding station, and the second positioning plate 64 is installed on the base 1 and is located at the discharging end of the welding station;

[0141] The first positioning plate 63 can rotate. The first positioning plate 63 is used to be retracted inwards to avoid the sheet when the sheet enters the welding station, and to be opened outwards to limit one end of the sheet when the sheet touches the second positioning plate 64;

[0142] The second positioning plate 64 can be close to or away from the first positioning plate 63. The second positioning plate 64 is used to limit the other end of the sheet entering the welding station and push the sheet to move toward the first positioning plate 63.

[0143] The first positioning rod 61 and the second positioning rod 62 act on the upper edge of the end of the sheet, and the first positioning plate 63 and the second positioning plate 64 act on the lower edge of the end of the sheet.

[0144] Therefore, through the cooperation of the first positioning plate 63 and the second positioning plate 64, the positioning accuracy of the sheet is further guaranteed, the sheet tilting is avoided, and the positioning accuracy is guaranteed; specifically, the first positioning plate 63 can be driven by a rotary cylinder, and the second positioning plate 64 can be moved by a motor screw transmission pair.

[0145] Optionally, see Fig. 9 The feeding mechanism 2 includes a feeding frame 21 and a fifth motor 22, wherein:

[0146] The feed rack 21 is erected on the base 1 and is located on one side of the rack 11. The feed rack 21 is provided with two conveying rollers 23 arranged at intervals up and down, and the sheet passes between the two conveying rollers 23;

[0147] The fifth motor 22 is mounted on the feed rack 21 , and an output shaft of the fifth motor 22 is connected to any one of the conveying rollers 23 .

[0148] Thus, the sheet is fed through the two conveying rollers 23, so that the sheet is loaded in an orderly manner.

[0149] Furthermore, a supporting frame 24 is provided on one side of the feed frame 21 close to the rolling mechanism 3 , and a plurality of fifth rollers 25 are provided on the supporting frame 24 .

[0150] Therefore, the sheet between the feeding mechanism 2 and the rolling mechanism 3 is supported by the supporting frame 24 to prevent the sheet from sagging and ensure that the sheet enters the rolling mechanism 3 accurately.

[0151] In addition, the welding mechanism 10 includes a welding gun that can move along the seam edge, and the welding gun welds the welding position reserved on the edge pressing mechanism 9. The welding gun is a prior art and will not be further described here.

[0152] The whole processing process:

[0153] 1) The flat sheet is transported to the rolling mechanism 3 through the feeding mechanism 2;

[0154] 2) The roller pressing mechanism 3 bends the flat sheet;

[0155] 3) The bent sheet is repeatedly guided by the rounding mechanism 4 to the rolling mechanism 3 until the target roundness is reached;

[0156] 4) The rolled sheet is stopped by the stop plate 37 and enters the rolling mechanism 3, and the material transfer mechanism 5 moves the rolled sheet from the rolling station to the welding station;

[0157] 5) The plate end positioning mechanism 6 positions the rolled sheet axially;

[0158] 6) The reference piece 71 of the weld positioning mechanism 7 is erected at the target weld position;

[0159] 7) The embracing mechanism 8 brings the two seam edges of the opening seam of the sheet material closer to each other and against different sides of the reference sheet 71 to form a preform;

[0160] 8) The edge pressing mechanism 9 presses the two seam edges against the reference sheet 71 and leaves a welding position, so that the open seam of the sheet remains closed;

[0161] 9) The reference plate 71 is removed, and the welding mechanism 10 welds the two seam edges to form a cylindrical workpiece;

[0162] 10) The welded cylindrical workpiece is moved away from the welding station by an additional robot or the material transfer mechanism 5, forming a processing cycle.

[0163] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. For those skilled in the art, various obvious changes, readjustments and substitutions can be made without departing from the protection scope of the present invention. It is not necessary and impossible to list all the embodiments here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. Roll welding machine, characterized in that, The invention comprises a base (1), a feeding mechanism (2), a rolling mechanism (3), a rounding mechanism (4), a material moving mechanism (5), a plate end positioning mechanism (6), a weld seam positioning mechanism (7), an embracing mechanism (8), an edge pressing mechanism (9) and a welding mechanism (10), wherein: The base (1) is provided with a frame (11) and support frames (12) located on both sides of the frame (11); the frame (11) is provided with a rolling station and a welding station; The feeding mechanism (2) is located at one side of the curling station, and the feeding mechanism (2) is used to transport the sheet to be processed to the curling station; The rolling mechanism (3) is located at the rolling station, and the rolling mechanism (3) is used to bend the sheet material fed by the feeding mechanism (2); The rounding mechanism (4) is located at the rolling station, and is used to guide the bent sheet to repeatedly enter the rolling mechanism (3) to achieve rolling; The material transfer mechanism (5) is arranged on the rack (11), and is used to transfer the rolled sheet material with its open seam facing upward from the rolling station to the welding station; The plate end positioning mechanism (6) is located at the welding station, and the plate end positioning mechanism (6) is used to axially position the sheet; The weld seam positioning mechanism (7) comprises a reference plate (71), and the reference plate (71) is used to determine the target weld seam position of the sheet material before welding; The embracing mechanism (8) is located at the welding station, and is used to drive two seam edges of the open seam of the sheet material to approach each other and abut against different sides of the reference sheet (71); The edge pressing mechanism (9) is located at the welding station, and is used to press the two seam edges against the reference sheet (71) and leave a welding position, so that the open seam of the sheet remains in a closed state; The welding mechanism (10) is used for welding the two seam edges.

2. The crimping welding machine according to claim 1, characterized in that: The rounding mechanism (4) comprises a guide frame (41), a first cylinder (42) and a first motor (43), wherein: The guide frame (41) is mounted on the base (1) and arranged around the sheet to be bent, and the guide frame (41) is provided with a plurality of guide wheels (44) that are in rolling contact with the sheet; The first cylinder (42) is mounted on the base (1); a friction wheel (45) is arranged on the output rod of the first cylinder (42); the first cylinder (42) is used to drive the friction wheel (45) to contact or move away from the sheet; The first motor (43) is used to drive the friction wheel (45) to rotate, and drive the sheet material in contact with the friction wheel (45) to move along the guide wheel (44).

3. The crimping welding machine according to claim 1, characterized in that: The material moving mechanism (5) comprises a moving frame (51), a second motor (52) and a second cylinder (53), wherein: A linear guide rail is arranged on the row frame (11) along the axial direction of the rolled sheet, and the moving frame (51) is slidably arranged on the linear guide rail; The second motor (52) is mounted on the frame (11) and is located at one end of the linear guide rail, a first pulley is provided on the output shaft of the second motor (52), a second pulley is provided on the frame (11) and is located at the other end of the linear guide rail, a belt (54) is provided between the first pulley and the second pulley, and a point on the belt (54) is connected to the moving frame (51); A plurality of second cylinders (53) are installed on the moving frame (51), each of the second cylinders (53) is located on the inner side of the sheet and is distributed in a ring shape in a vertical plane, a push plate (55) is provided on the output rod of each second cylinder (53), and the second cylinder (53) is used to drive the push plate (55) to switch alternately between a first position and a second position; When the push plate (55) is in the first position, the push plate (55) opens outward to limit the end surface of the sheet; When the push plate (55) is in the second position, the push plate (55) is retracted inwards to avoid the sheet material.

4. The crimping welding machine according to claim 1, characterized in that: The rolling mechanism (3) comprises a rolling frame (31), a third motor (32) and a fourth motor (33), wherein: A guide rod (14) is erected on the frame (11), the roller press frame (31) is slidably arranged on the guide rod (14) and is located above the frame (11), and two upper rollers (34) are arranged on the roller press frame (31); The row frame (11) is provided with a lower roller (35), and the lower roller (35) is located below the middle position of the two upper rollers (34), and the sheet to be bent or to be repeatedly bent passes between the two upper rollers (34) and the lower roller (35); The third motor (32) is arranged on the roller pressing frame (31), and the third motor (32) is used to drive the two upper rollers (34) to rotate; The fourth motor (33) is connected to the roller press frame (31) via a screw nut pair, and the fourth motor (33) is used to drive the roller press frame (31) to move closer to or away from the row frame (11) to adjust the distance between the two upper rollers (34) and the lower roller (35).

5. The crimping welding machine according to claim 1, characterized in that: The weld positioning mechanism (7) further comprises a turning arm (72) and a third cylinder (73), wherein: One end of the flip arm (72) is mounted on the support frame (12) at one side, and the other end of the flip arm (72) is provided with a vertical plate (74), and the reference plate (71) is mounted on the vertical plate (74); The third cylinder (73) is installed on the support frame (12), and the output rod of the third cylinder (73) is connected to the vertical plate (74). The third cylinder (73) is used to drive the reference plate (71) to stand upright on the row frame (11) or on the support frame (12) on one side.

6. The crimping welding machine according to claim 1, characterized in that: The embracing mechanism (8) comprises a fourth cylinder (81) and a fifth cylinder (82), wherein: The fourth cylinder (81) is installed on the support frames (12) on both sides and is located on the two sides of the sheet. A side pressure plate (83) is provided on the output rod of the fourth cylinder (81). The fourth cylinder (81) on both sides is used to drive the two side pressure plates (83) to synchronously press against or away from the outer surface of the sheet. The fifth cylinder (82) is installed on the support frames (12) on both sides and is located above both sides of the sheet. An embracing plate (84) is provided on the output rod of the fifth cylinder (82). The fifth cylinder (82) on both sides is used to drive the two embracing plates (84) to synchronously push or move away from the outer surface of the sheet. The embracing plate (84) is provided with a first roller (85) that is in rolling contact with the sheet.

7. The crimping welding machine according to claim 1, characterized in that: The edge pressing mechanism (9) comprises a swing arm (91) and a sixth cylinder (92), wherein: A plurality of swing arms (91) are mounted on the support frames (12) on both sides and arranged along the seam edge, one end of the swing arm (91) is rotatably connected to the support frame (12), and the other end of the swing arm (91) is provided with a pressing block (93); The sixth cylinder (92) is installed on the support frame (12), and the output rod of the sixth cylinder (92) is connected to the middle part of the swing arm (91). The sixth cylinder (92) is used to drive the pressing block (93) to press the seam edge onto the row frame (11) or release the seam edge.

8. The crimping welding machine according to claim 1, characterized in that: The plate end positioning mechanism (6) comprises a first positioning rod (61) and a second positioning rod (62), wherein: The first positioning rod (61) is installed on the frame (11) and is located at the feeding end of the welding station, and the second positioning rod (62) is installed on the frame (11) and is located at the discharging end of the welding station; The first positioning rod (61) is capable of retracting, and is used to retract when the sheet enters the welding station to avoid the sheet, and to extend when the sheet touches the second positioning rod (62) to limit one end of the sheet; The second positioning rod (62) can be moved closer to or farther away from the first positioning rod (61). The second positioning rod (62) is used to limit the other end of the sheet entering the welding station and push the sheet to move toward the first positioning rod (61).

9. The crimping welding machine according to claim 8, characterized in that: The plate end positioning mechanism (6) further comprises a first positioning plate (63) and a second positioning plate (64), wherein: The first positioning plate (63) is mounted on the base (1) and is located at the feeding end of the welding station, and the second positioning plate (64) is mounted on the base (1) and is located at the discharging end of the welding station; The first positioning plate (63) is rotatable, and is used to be retracted inwards to avoid the sheet when the sheet enters the welding station, and to be opened outwards to limit one end of the sheet when the sheet touches the second positioning plate (64); The second positioning plate (64) can be close to or away from the first positioning plate (63), and the second positioning plate (64) is used to limit the other end of the sheet entering the welding station and push the sheet to move toward the first positioning plate (63); The first positioning rod (61) and the second positioning rod (62) act on the upper edge of the end of the sheet, and the first positioning plate (63) and the second positioning plate (64) act on the lower edge of the end of the sheet.

10. The crimping welding machine according to claim 1, characterized in that: The feeding mechanism (2) comprises a feeding frame (21) and a fifth motor (22), wherein: The feed rack (21) is erected on the base (1) and is located on one side of the row rack (11). The feed rack (21) is provided with two conveying rollers (23) arranged at intervals up and down, and the sheet passes between the two conveying rollers (23); The fifth motor (22) is mounted on the feed rack (21), and the output shaft of the fifth motor (22) is connected to any one of the conveying rollers (23).

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