A roll shape device for iron barrel capable of detecting welding edge and a roll shape verification method thereof

Abstract

The present invention discloses a roll-up device for a sheet metal barrel capable of detecting weld edges and a roll-up verification method thereof, and relates to the technical field of sheet metal barrel preparation, including a roll-up frame and a roll-up mechanism, wherein the roll-up mechanism bends the sheet metal through three groups of rollers, and the roll-up mechanism includes an upper roller group assembly and a lower roller group assembly, wherein the upper roller group assembly includes an upper shaft roller, and the lower roller group assembly includes a lower shaft roller. The present invention detects the arc length of the weld edge area of ​​the sheet metal barrel after the roll-up is completed by an ultrasonic detector, and measures the total arc length of both sides of the sheet metal by setting a measuring encoder and a pressure sensor on the lower shaft roller, and obtains the top opening circumference and the bottom opening circumference of the formed sheet metal barrel. According to the initial curvature of the sheet metal plate, the top opening circumference and the bottom opening circumference of the formed sheet metal barrel are calculated to determine whether they meet the requirements, so as to ensure that the upper and lower edges of the sheet metal are formed in the same plane, so that the round plate can be used to completely seal the bottom of the sheet metal barrel to ensure its sealing effect.

Description

Technical Field

[0001] The invention relates to the technical field of sheet metal barrel preparation, in particular to a sheet metal barrel roll shape device capable of detecting welding edges and a roll shape verification method thereof. Background Art

[0002] The tin bucket is a metal container used to hold solid particles or liquids. Common tin buckets are used for materials such as grease and paint. The biggest advantage of the tin bucket is its strong structure and strong stability. The preparation process of the tin bucket is also very simple. You only need to use a plate rolling machine to roll the tin sheet to bend the flat tin sheet, connect the two ends of the tin sheet by welding or crimping, and finally install the round plate to seal the bottom.

[0003] In the entire production line, the sealing of the iron barrel is of vital importance. Before the iron barrel is finalized, sealing problems may occur due to two process defects: first, whether the two ends of the iron sheet are completely connected when the seams are rolled; second, whether the upper and lower sides of the iron sheet are in a flush state when rolled; if the two ends of the iron sheet are not completely sealed at the joints, the liquid inside the barrel will easily leak at the incompletely sealed places. If the upper and lower sides of the iron sheet are not in a flush state during the rolling process, there will be gaps when the round plate is sealed at the bottom, causing leakage at the bottom of the final iron barrel.

[0004] When the diameters of the upper and lower openings of the rolled iron barrel are the same, it is only necessary to ensure that the curvatures of the two sides of the iron sheet are consistent when rolled, so that the upper and lower sides of the rolled iron sheet can be in a flush state. However, in the prior art, for truncated cone-shaped iron barrels, the curling curvatures of the two sides are inconsistent during production, and it is difficult to control the curling curvature of the iron sheet, which can easily lead to uneven bottoms of the formed iron barrels, thereby causing leakage problems. Summary of the invention

[0005] The object of the present invention is to provide a device for rolling a sheet metal barrel capable of detecting welding edges and a method for checking the rolling shape thereof, so as to solve the problem proposed in the above-mentioned background technology that the rolling curvatures of the two sides of a truncated cone-shaped sheet metal barrel are inconsistent during production, and it is difficult to control the rolling curvature of the sheet metal, which easily leads to uneven bottoms of the formed sheet metal barrels, thereby causing leakage.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a sheet metal barrel rolling device capable of welding edge detection, comprising a rolling frame and a rolling mechanism, wherein the rolling mechanism bends the sheet metal through three sets of rollers, and after positioning the three sets of rollers according to the principle of three-point circle determination, the iron plate tangent to the side surfaces of the three sets of rollers will be rolled into an arc corresponding thereto, wherein the rolling mechanism comprises an upper roller assembly and a lower roller assembly, wherein the upper roller assembly comprises an upper shaft roller, and the lower roller assembly comprises a lower shaft roller, and the two lower shaft rollers and one upper shaft roller constitute the plate rolling rollers of the rolling mechanism, The iron sheet passes through the lower surface of the lower shaft roller, the upper surface of the upper shaft roller and the lower surface of the lower shaft roller in sequence, and then forms an upward arc, so as to roll the flat plate into an arc plate. A fixed sleeve frame is arranged on one side of the upper roller group assembly and the lower roller group assembly, and a movable sleeve frame is arranged on the other side of the upper roller group assembly and the lower roller group assembly. The upper shaft roller and the lower shaft roller rotate between the fixed sleeve frame and the movable sleeve frame. The axis of the upper shaft roller and the lower shaft roller on one side of the fixed sleeve frame is in a fixed position, and the axis of the upper shaft roller and the lower shaft roller on one side of the movable sleeve frame is adjustable.

[0007] An arc adjustment mechanism is arranged on the outer side wall of the movable sleeve frame, and the arc adjustment mechanism adjusts the position of the rolling roller on the movable sleeve frame, thereby changing the bending arc on both sides of the rolling roller. A welding edge detection mechanism is arranged on one side of the rolling frame, and the welding edge detection mechanism includes a side plate, a barrel hanging frame and a detection frame. The side plate is fixedly connected to the outer side wall of the rolling frame, the barrel hanging frame is fixedly connected to the outer side wall of the side plate, and the detection frame is rotatably connected to the outer side wall of the side plate. The barrel hanging frame is used to lift the rolled iron barrel, and the detection frame is used to detect the thickness of the inner wall of the iron barrel.

[0008] Preferably, the movable sleeve frame is provided with a third sleeve and a fourth sleeve, the fixed sleeve frame is provided with a first sleeve and a second sleeve, the outer wall of the detection frame is fixedly connected with a lever, the side wall of the side plate is provided with an annular groove, and the lever is slidably connected to the inner wall of the annular groove.

[0009] Preferably, one end of the upper shaft roller is fixedly connected to universal joint 1, one end of the universal joint 1 is fixedly connected to coupling 1, the coupling 1 is transmission connected to the first sleeve, and the other end of the upper shaft roller is fixedly connected to universal joint 2, one end of the universal joint 2 is transmission connected to the third sleeve.

[0010] Preferably, one end of the lower shaft roller is fixedly connected to universal joint three, one end of universal joint three is fixedly connected to coupling two, coupling two is transmission-connected to the second shaft sleeve, and the other end of the lower shaft roller is transmission-connected to the fourth shaft sleeve.

[0011] Preferably, the curvature adjustment mechanism includes an expansion mechanism, which includes an electric cylinder 1, the output end of the electric cylinder 1 is fixedly connected to a telescopic column, the outer wall of the telescopic column is rotatably connected to a flip rod, one end of the flip rod is rotatably connected to a hinge, the flip rod is rotatably connected to a fourth sleeve via a hinge, a tension spring is provided between the two fourth sleeves, the upper surface of the movable sleeve frame is fixedly connected to an arc rail, the interior of the arc rail is slidably connected to a sliding block, and the sliding block is fixedly connected to the fourth sleeve.

[0012] Preferably, the arc adjustment mechanism also includes an electric cylinder 2, which is installed at the center position of the top surface of the movable sleeve frame, and a limit frame is fixedly connected to the center position of the bottom end of the movable sleeve frame. The third sleeve is slidably connected to the inner wall of the limit frame, and the output end of the electric cylinder 2 passes through the bottom wall of the movable sleeve frame and is fixedly connected to the third sleeve.

[0013] Preferably, the outer wall of the roll rack is provided with a driving mechanism, and the driving mechanism includes a servo motor and a reducer, the output end of the servo motor is transmission-connected with a transmission belt, the other end of the transmission belt is transmission-connected with the input end of the reducer, the outer wall of the second sleeve is fixedly connected with a sprocket, the output end of the reducer is fixedly connected to the sprocket, and a chain belt is transmission-connected between the two sprockets.

[0014] The present invention also discloses a roll shape verification method for a sheet metal barrel capable of welding edge detection, comprising the following steps:

[0015] Step 1: Input the curvature value of the iron sheet: according to the shape of the iron sheet barrel to be prepared, the iron sheet is cut into iron sheets with a specific curvature by a laser cutting device, and the iron sheet is fed into the rolling device while inputting its curvature value;

[0016] Step 2: Adjust the bending curvature of the rolling roller: According to the bevel angle of the formed iron barrel and the curvature value of the iron sheet, adjust the bending curvature of both sides of the iron sheet between the upper roller and the lower roller, and use this data to adjust the spacing of the rolling rollers;

[0017] Step 3: Calculate the total arc length of the upper and lower sides of the iron sheet: When the iron sheet is rolled by the upper and lower rollers, measure the contact time between the upper and lower rollers and the iron sheet, calculate the total arc length of the upper and lower sides of the iron sheet, and obtain the central angle corresponding to the upper and lower sides of the iron sheet;

[0018] Step 4: Detect the repeated length of the weld edge: When the iron sheets in the weld edge area overlap, their thickness is greater than the initial thickness of the iron sheets. Use the detection frame to detect the thickness of the iron sheets from the inner wall of the iron barrel, and measure the repeated length of the weld edges of the upper and lower sides of the iron barrel according to the numerical difference obtained by ultrasonic detection;

[0019] Step 5. Calculate the curvature of the upper and lower plates of the roll: According to the total arc length of the upper and lower edges of the iron sheet measured during rolling, measure the repeated arc length of the weld edge area under ideal conditions, and combine it with the actual measured repeated arc length of the weld edge to calculate whether the upper and lower mouths of the rolled iron barrel are flush, and adjust the shape of the rolled iron barrel.

[0020] Preferably, a roll shape checking system is also used, including: an arc length measuring module, a weld edge detecting module, a microprocessor and a barrel edge curvature adjusting module;

[0021] The arc length measurement module includes a measuring encoder and a pressure sensor, wherein the pressure sensor is used to measure the contact between the iron sheet and the lower shaft roller, and the measuring encoder is used to measure the moving distance of the iron sheet corresponding to the rotation of the lower shaft roller during the process, so as to measure the total arc length of the upper and lower sides of the iron sheet;

[0022] The weld edge detection module includes an ultrasonic detector, and the data measured by the ultrasonic detector is fitted with an acoustic wave graph to draw a fitting graph of the weld edge of the iron barrel;

[0023] The barrel edge curvature adjustment module includes a control encoder, and the control encoder is used to adjust the stroke of the electric cylinder 1 and the electric cylinder 2;

[0024] The microprocessor is used to calculate the arc lengths of the upper and lower edges of the iron sheet and the repeated arc lengths of the welded edges, and to adjust the output power of the barrel edge arc adjustment module.

[0025] Preferably, the relationship between the effective arc length of the iron sheet, the curvature value of the iron sheet and the bevel angle of the iron sheet barrel is as follows:

[0026] ;

[0027] In the formula, is the bevel angle of the iron tube, is the effective arc length of the curl under the iron sheet, is the curvature value of the iron sheet.

[0028] Compared with the prior art, the present invention has the following beneficial effects:

[0029] 1. In the present invention, an ultrasonic detector is used to detect the arc length of the welded edge area of ​​the rolled iron bucket, and a measuring encoder and a pressure sensor are set on the lower shaft roller to measure the total arc length of both sides of the iron sheet, so as to obtain the top and bottom circumferences of the formed iron sheet bucket. According to the initial curvature of the iron sheet, it is calculated whether the top and bottom circumferences of the formed iron sheet bucket meet the requirements, so as to ensure that the upper and lower sides of the iron sheet are formed in the same plane, so that the round plate can be used to completely seal the bottom of the iron sheet bucket to ensure its sealing effect.

[0030] 2. In the present invention, a fixed shaft sleeve frame with a fixed axis is provided at one end of the rolling roller, and a movable sleeve frame with an adjustable axis is provided at the other end of the rolling roller. When the rolled iron barrel needs to be in a truncated cone shape, the axis position of the upper shaft roller or the lower shaft roller on the movable sleeve frame is appropriately adjusted. When one of the axis positions changes, the curvature of the curling by the two lower shaft rollers and one upper shaft roller changes accordingly, thereby curling the iron sheet into a truncated cone shape, so as to produce iron barrels with different shapes.

[0031] 3. In the present invention, the arc length of the welding edge area is detected by an ultrasonic detector to detect whether the reserved length of the iron sheet when it is rolled into an iron barrel can meet the requirements of sealing welding, so as to add sufficient filler to the side part of the iron barrel, or to curl the iron sheet to seal, enhance the sealing effect, and ensure the sealing of the side of the iron barrel.

[0032] 4. In the present invention, the arc length measuring module measures the curling length while the roll roller is winding, and the weld edge detection module detects the thickness of the metal from the inner side of the iron barrel, thereby detecting the range of the weld edge overlap area, and combining the initial curvature of the iron sheet, the measurement data is transmitted to the microprocessor to obtain the theoretical curling curvature of the upper and lower openings of the iron barrel, and the stroke of the electric cylinder is adjusted by controlling the encoder, so as to perform real-time correction on the curling curvature of the iron sheet, thereby improving the forming quality of the iron barrel. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 It is a schematic diagram of the overall structure of a sheet metal barrel roll device capable of welding edge detection according to the present invention;

[0034] Figure 2 It is a structural schematic diagram of a driving mechanism in a sheet metal barrel roll device capable of welding edge detection according to the present invention;

[0035] Figure 3 It is a structural schematic diagram of a rolling mechanism in a sheet metal barrel rolling device capable of welding edge detection according to the present invention;

[0036] Figure 4 It is a structural schematic diagram of an expansion mechanism in a sheet metal barrel roll device capable of welding edge detection according to the present invention;

[0037] Figure 5 It is a structural schematic diagram of the electric cylinder 2 in a sheet metal barrel roll device capable of welding edge detection according to the present invention;

[0038] Figure 6 This is a flow chart of a sheet metal barrel roll device capable of welding edge detection according to the present invention;

[0039] Figure 7 It is a schematic diagram of deformation of the roll-shaped device in the third embodiment of the present invention;

[0040] Figure 8For the present invention Figure 7 A simplified diagram of the effect;

[0041] Fig. 9 It is a schematic diagram of deformation of the roll-shaped device in the second embodiment of the present invention;

[0042] Fig.10 For the present invention Fig. 9 A simplified diagram of the effect;

[0043] Fig.11 A brief illustration of the principle of arc-shaped iron sheet roll Figure 1 ;

[0044] Fig.12 A brief illustration of the principle of arc-shaped iron sheet roll Figure 2 ;

[0045] Fig.13 It is a simplified diagram of the rolling forming of cylindrical iron sheet;

[0046] Fig.14 It is a simplified diagram of the rolling forming of a truncated cone-shaped iron sheet;

[0047] Fig.15 It is a flow chart of a roll shape verification method of a sheet metal drum capable of welding edge detection according to the present invention;

[0048] Fig.16 The present invention is a system block diagram of a roll shape verification method for a sheet metal barrel capable of welding edge detection.

[0049] In the figure: 1, roll frame; 2, drive mechanism; 21, servo motor; 22, transmission belt; 23, reducer; 24, sprocket; 25, chain belt; 3, roll mechanism; 31, upper roller assembly; 311, upper shaft roller; 312, coupling 1; 313, universal joint 1; 314, universal joint 2; 32, lower roller assembly; 321, lower shaft roller; 322, coupling 2; 323, universal joint 3; 33, fixed sleeve frame; 331, first Bushing; 332, second bushing; 34, movable sleeve frame; 341, third bushing; 342, fourth bushing; 343, sliding block; 344, tension spring; 4, limit frame; 5, expansion mechanism; 51, electric cylinder 1; 52, telescopic column; 53, flip rod; 54, hinge; 55, arc rail; 6, electric cylinder 2; 7, weld edge detection mechanism; 71, side plate; 72, barrel rack; 73, detection frame; 74, ring groove; 75, lever. DETAILED DESCRIPTION

[0050] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the implementation regulations described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0051] Embodiment 1: According to Figure 1 - Fig.16 As shown: a sheet metal barrel rolling device capable of welding edge detection, comprising a rolling frame 1 and a rolling mechanism 3, the rolling mechanism 3 bends the sheet metal through three groups of rollers, and after positioning the three groups of rollers according to the principle of three-point circle determination, the iron plate tangent to the side surfaces of the three groups of rollers will be rolled into an arc corresponding thereto, the rolling mechanism 3 comprises an upper roller assembly 31 and a lower roller assembly 32, the upper roller assembly 31 comprises an upper shaft roller 311, the lower roller assembly 32 comprises a lower shaft roller 321, and the two lower shaft rollers 321 and one upper shaft roller 311 form the plate rolling rollers of the rolling mechanism 3;

[0052] A fixed sleeve frame 33 is provided on one side of the upper roller assembly 31 and the lower roller assembly 32, and a movable sleeve frame 34 is provided on the other side of the upper roller assembly 31 and the lower roller assembly 32. The fixed sleeve frame 33 and the movable sleeve frame 34 are both installed on the roll frame 1. The upper shaft roller 311 and the lower shaft roller 321 rotate between the fixed sleeve frame 33 and the movable sleeve frame 34. The axis of the upper shaft roller 311 and the lower shaft roller 321 on one side of the fixed sleeve frame 33 is in a fixed position, and the axis of the upper shaft roller 311 and the lower shaft roller 321 on one side of the movable sleeve frame 34 is adjustable.

[0053] An radian adjustment mechanism is provided on the outer wall of the movable sleeve frame 34, and the radian adjustment mechanism adjusts the position of the rolling roller on the movable sleeve frame 34, thereby changing the bending radian of the rolling roller on both sides. A welding edge detection mechanism 7 is provided on one side of the roll frame 1, and the welding edge detection mechanism 7 includes a side plate 71, a barrel hanging frame 72 and a detection frame 73. The side plate 71 is fixedly connected to the outer wall of the roll frame 1, and the barrel hanging frame 72 is fixedly connected to the outer wall of the side plate 71. The detection frame 73 is rotatably connected to the outer wall of the side plate 71. The barrel hanging frame 72 is used to lift the rolled iron barrel, and the detection frame 73 is used to detect the thickness of the inner wall of the iron barrel.

[0054] In this embodiment, the two lower rollers 321 in the rolling roller are arranged at the bottom, and the upper roller 311 is arranged at the top. The iron sheet passes through the lower surface of the lower roller 321, the upper surface of the upper roller 311 and the lower surface of the other lower roller 321 in sequence, and then forms an upward arc, so as to roll the flat plate into an arc plate. According to the different shapes of the iron barrel to be processed, the positions of the upper roller 311 and the lower roller 321 at the movable sleeve frame 34 can be adjusted.

[0055] See attached Fig.13 When the iron barrel is cylindrical (i.e. the diameter of the upper and lower openings of the iron barrel are the same), it can be made of iron sheets without curvature on the upper and lower edges. is the effective length of the iron sheet bottom, is the effective length of the upper side of the iron sheet, is the width of the iron sheet, and is also the height of the formed iron sheet barrel. The effective arc length of the iron sheet is the arc length of the iron sheet used to roll into the barrel, which is the total arc length of the iron sheet minus the arc length of the welded edge (the effective arc length hereinafter refers to the arc length used for rolling, which will not be repeated). At this time, it is only necessary to ensure that when the iron sheet is rolled on the rolling mechanism 3, the rolling curvatures on both sides are equal, so that the upper and lower openings of the formed iron sheet barrel can be in a flush state;

[0056] See attached Fig.14 When the iron barrel produced is in the shape of a truncated cone (i.e. the diameter of the upper opening of the iron barrel is larger than the diameter of the lower opening), the iron sheet with arcs on the upper and lower sides is used for preparation. is the effective arc length under the iron sheet, is the effective arc length on the iron sheet, The width of the iron sheet is set. The iron sheet is put into the rolling device. The rolling curvature on both sides of the iron sheet needs to be controlled according to the bevel angle of the formed iron sheet barrel (the angle between the outer side and the ground on the maximum vertical section of the iron sheet barrel when it is placed upright). The rolling curvature of the lower mouth is greater than that of the upper mouth. The difference in the rolling curvature of the two sides is determined by the bevel angle of the iron sheet. When the bevel angle approaches 90 degrees, the difference in the rolling curvature of the two sides is the smallest; when the bevel angle is smaller, the difference in the rolling curvature of the two sides is greater.

[0057] See attached Figure 6 The process of rolling iron sheets to form iron barrels is as follows: first, insert a flat iron sheet from one side of the rolling mechanism 3, and let the driving mechanism 2 drive the rolling mechanism 3 to rotate, and bend it by the action of the upper shaft roller 311 and the two lower shaft rollers 321, and then roll out the rolled iron sheet from the other side of the rolling mechanism 3, and the rolled iron sheet is bent upward and hung on the barrel hanging rack 72. When the iron sheet is completely rolled, it forms a cylindrical shape and is hoisted on the barrel hanging rack 72. The overlapping part of the two ends of the iron sheet is the welding edge area. An ultrasonic detector is set under the detection frame 73. The ultrasonic detector is used to perform ultrasonic detection on the iron barrel, measure the repeated length of the iron sheet at the welding edge, and obtain the actual rolling curvature of the iron barrel, and check whether it can meet the flushness of the upper and lower edges of the iron barrel.

[0058] Embodiment 2: According to Figure 1 , Figure 3 , Figure 5 , Fig. 9 and Fig.10As shown, the movable sleeve frame 34 is provided with a third sleeve 341 and a fourth sleeve 342, the fixed sleeve frame 33 is provided with a first sleeve 331 and a second sleeve 332, the outer wall of the detection frame 73 is fixedly connected with a lever 75, the side wall of the side plate 71 is provided with an annular groove 74, and the lever 75 is slidably connected to the inner wall of the annular groove 74;

[0059] One end of the upper shaft roller 311 is fixedly connected to a universal joint 313, one end of the universal joint 313 is fixedly connected to a coupling 312, the coupling 312 is transmission-connected to the first sleeve 331, the other end of the upper shaft roller 311 is fixedly connected to a universal joint 314, one end of the universal joint 314 is transmission-connected to the third sleeve 341, the arc adjustment mechanism also includes an electric cylinder 2 6, the electric cylinder 2 6 is installed at the center position of the top surface of the movable sleeve frame 34, the bottom center position of the movable sleeve frame 34 is fixedly connected to the limit frame 4, the third sleeve 341 is slidably connected to the inner side wall of the limit frame 4, and the output end of the electric cylinder 2 6 passes through the bottom wall of the movable sleeve frame 34 and is fixedly connected to the third sleeve 341.

[0060] In this embodiment, there are many ways to adjust the curling curvature of both sides of the curling roller group. Fig.10 As shown in the figure, when the electric cylinder 26 is used to drive the third shaft sleeve 341 to move in the vertical direction, the position of the third shaft sleeve 341 inside the limit frame 4 is adjusted, and the curvature of the roll formed at the two ends of the roll mechanism 3 will also change, and the axis position of the end of the upper shaft roller 311 and the two lower shaft rollers 321 close to the fixed sleeve frame 33 remains unchanged, and the curvature of the roll of the iron sheet at this end will not change, forming the lower opening of the iron sheet barrel; the end of the upper shaft roller 311 close to the movable sleeve frame 34 is driven by the electric cylinder 26, and the axis of the upper shaft roller 311 moves upward, which will cause the degree of downward pressure on the iron sheet by the upper shaft roller 311 to be reduced, and the roll curvature of the other end of the iron sheet is reduced, forming the upper opening of the iron sheet barrel;

[0061] When the roll curvature is adjusted by changing the axial position of the upper roller 311, in order to allow the upper roller 311 to still maintain the stability of the roller rotation when the axis is offset, one side of the upper roller 311 is connected with a universal joint 1 313, and the other side of the upper roller 311 is connected with a universal joint 2 314. Within the set angle range, no matter how the axial direction of the upper roller 311 is adjusted, it can rotate between the fixed sleeve frame 33 and the movable sleeve frame 34, and the vibration noise caused by the deflection of the upper roller 311 is reduced by the coupling 1 312.

[0062] Embodiment 3: According to Figure 1 , Figure 3 , Figure 4 , Figure 7 and Figure 8As shown, a third shaft sleeve 341 and a fourth shaft sleeve 342 are arranged in the movable sleeve frame 34, a first shaft sleeve 331 and a second shaft sleeve 332 are arranged in the fixed sleeve frame 33, one end of the lower shaft roller 321 is fixedly connected to a universal joint 323, one end of the universal joint 323 is fixedly connected to a coupling 2 322, the coupling 2 322 is transmission-connected to the second shaft sleeve 332, and the other end of the lower shaft roller 321 is transmission-connected to the fourth shaft sleeve 342;

[0063] The curvature adjustment mechanism includes an expansion mechanism 5, which includes an electric cylinder 51. The output end of the electric cylinder 51 is fixedly connected to a telescopic column 52. The outer wall of the telescopic column 52 is rotatably connected to a flip rod 53. One end of the flip rod 53 is rotatably connected to a hinge 54. The flip rod 53 is rotatably connected to the fourth shaft sleeve 342 through the hinge 54. A tension spring 344 is arranged between the two fourth shaft sleeves 342. The upper surface of the movable sleeve frame 34 is fixedly connected to an arc rail 55. The interior of the arc rail 55 is slidably connected to a sliding block 343. The sliding block 343 is fixedly connected to the fourth shaft sleeve 342.

[0064] This embodiment adopts another method to control the curling curvature of the iron drum. Figure 8 As shown in the figure, when the electric cylinder 51 is used to drive the telescopic column 52 to move, the telescopic column 52 is adjusted to a telescopic length under the limit, and the telescopic column 52 drives the flip rod 53 to deflect, the fourth shaft sleeve 342 is spread to both sides by the flip rod 53, and the spread distance of the axis of the lower shaft roller 321 is changed. When the spread angle of the two fourth shaft sleeves 342 is larger, the curvature of the upper mouth of the iron barrel rolled by the upper shaft roller 311 and the lower shaft roller 321 is smaller, and the lower mouth of the iron barrel is rolled by the upper shaft roller 311 and the lower shaft roller 321 close to the fixed sleeve frame 33. The curvature of the roll of the lower mouth of the iron barrel remains unchanged, and the bevel angle of the barrel body is changed by adjusting the curvature of the upper mouth of the iron barrel;

[0065] When the pushing effect of the electric cylinder 51 causes the fourth sleeve 342 to slide under the limit of the arc rail 55, the arc rail 55 is located on an arc track with one end of the lower shaft roller 321 as the center, and the fourth sleeve 342 is directly connected to the lower shaft roller 321 through a bearing. No matter how the fixed position of the fourth sleeve 342 in the arc rail 55 changes, the plane of the fourth sleeve 342 is vertically perpendicular to the axis of the lower shaft roller 321. By arranging a universal joint 323 at the other end of the lower shaft roller 321, the universal joint 323 is used to ensure that the axis of the lower shaft roller 321 can be adjusted within a certain range, and the coupling 2 322 is used to eliminate the vibration problem caused by the deviation between the axis of the lower shaft roller 321 and the axis of the second sleeve 332, thereby reducing the noise during transmission.

[0066] Embodiment 4: According to Figure 1 , Figure 2 and Figure 3As shown, the outer wall of the roll frame 1 is provided with a driving mechanism 2, and the driving mechanism 2 includes a servo motor 21 and a reducer 23. The output end of the servo motor 21 is transmission-connected with a transmission belt 22, and the other end of the transmission belt 22 is transmission-connected with the input end of the reducer 23. The outer wall of the second sleeve 332 is fixedly connected with a sprocket 24, and the output end of the reducer 23 is fixedly connected with the sprocket 24. A chain belt 25 is transmission-connected between the two sprockets 24.

[0067] In this embodiment, the driving mechanism 2 is arranged at one end of the roll frame 1. When it is necessary to drive the two lower shaft rollers 321 to rotate for rolling, the servo motor 21 is started, and the servo motor 21 is used to drive the transmission belt 22. The transmission belt 22 drives the sprocket 24 to rotate at a low speed through the reducer 23. The second shaft sleeves 332 connected to the two lower shaft rollers 321 are each connected to a sprocket 24, and the two sprockets 24 are driven by a chain belt 25, so that the two sprockets 24 can maintain the effect of low-speed rotation, thereby providing driving force for the iron barrel to fix the roll.

[0068] Embodiment 5: According to Fig.11 - Fig.16 As shown, a roll shape verification method for a sheet metal barrel capable of welding edge detection comprises the following steps:

[0069] 1) Input the curvature value of the iron sheet: According to the shape of the iron barrel to be prepared, the iron sheet is cut into iron sheets with a specific curvature by the laser cutting equipment, and the iron sheet is fed into the rolling device while inputting its curvature value;

[0070] 2) Adjust the bending curvature of the rolling roller: According to the bevel angle of the formed iron barrel and the curvature value of the iron sheet, adjust the bending curvature of both sides of the iron sheet between the upper roller 311 and the lower roller 321, and use this data to adjust the spacing of the rolling rollers;

[0071] 3) Calculate the total arc length of the upper and lower sides of the iron sheet: When the iron sheet is rolled by the upper roller 311 and the lower roller 321, measure the contact time between the upper roller 311 and the lower roller 321 and the iron sheet, calculate the total arc length of the upper and lower sides of the iron sheet, and obtain the central angle corresponding to the upper and lower sides of the iron sheet;

[0072] 4) Detecting the repetitive length of the weld edge: When the iron sheets in the weld edge area overlap, their thickness is greater than the initial thickness of the iron sheets. The thickness of the iron sheets is detected from the inner wall of the iron barrel using the detection frame 73. The repetitive length of the weld edges of the upper and lower sides of the iron barrel is measured according to the numerical difference obtained by ultrasonic detection.

[0073] 5) Calculate the curvature of the upper and lower sides of the roll: According to the total arc length of the upper and lower sides of the iron sheet measured during rolling, measure the repeated arc length of the weld edge area under ideal conditions, and combine it with the actual measured repeated arc length of the weld edge to calculate whether the upper and lower mouths of the rolled iron barrel are flush, and adjust the shape of the rolled iron barrel.

[0074] The roll shape verification system is also used, including: arc length measurement module, weld edge detection module, microprocessor and barrel edge curvature adjustment module; the arc length measurement module includes a measuring encoder and a pressure sensor, the pressure sensor is used to measure the contact between the iron sheet and the lower shaft roller 321, and the measuring encoder is used to measure the distance of movement of the iron sheet corresponding to the rotation of the lower shaft roller 321 during this process, so as to measure the total arc length of the upper and lower edges of the iron sheet; the weld edge detection module includes an ultrasonic detector, which draws a fitting graph of the weld edge of the iron sheet barrel by fitting the data measured by the ultrasonic detector with an acoustic wave graph; the barrel edge curvature adjustment module includes a control encoder, which uses the control encoder to adjust the stroke of the electric cylinder 1 51 and the electric cylinder 2 6; the microprocessor is used to calculate the arc length of the upper and lower edges of the iron sheet and the repeated arc length of the weld edge, and adjust the output power of the barrel edge curvature adjustment module. The relationship between the effective arc length of the iron sheet, the curvature value of the iron sheet and the bevel angle of the iron sheet barrel is as follows:

[0075] ;

[0076] In the formula, is the bevel angle of the iron tube, is the effective arc length of the curl under the iron sheet, is the curvature value of the iron sheet.

[0077] In this embodiment, combined with the attached Fig.11 - Attachment Fig.14 According to mathematical analysis, there is a mathematical relationship that the central angle of a circle is equal to the product of the arc length and the curvature, that is, ; The central angle of the iron sheet before rolling is ,in is the central angle of the circle corresponding to the notch before the roll, and a complete circle is formed after the roll, so there is ;

[0078] By the attached Fig.12 The graphical relationship shows that: ;in, is the diameter of the arc-shaped iron sheet before rolling. It is the diameter of the arc-shaped iron sheet after it is rolled.

[0079] At the same time, when the iron sheet is formed into an iron barrel, the upper diameter and lower diameter of the iron barrel can be known, and the upper diameter is , the lower opening diameter is , we can know that after the maximum vertical section of the iron barrel, the relationship between the slope angle is ; In summary, the inclined angle of the iron barrel can be obtained And the effective arc length of the lower edge of the iron sheet And the curvature value of the iron sheet relationship;

[0080] When checking whether the iron sheet is flush when rolling, measure the total arc length of the upper side and the total arc length of the lower side of the iron sheet, and use the detection frame 73 to measure the arc length of the upper welding side and the arc length of the lower welding side. Subtract the repeated arc length of the welding side area from the total arc length of the iron sheet to know the effective arc length of the upper side of the iron sheet and the effective arc length of the lower side of the iron sheet, and compare it with the obtained theoretical arc length of the upper side of the iron sheet. and the theoretical arc length below For comparison, to check whether the upper and lower ends of the roll are kept flush, the roll calibration system can be used for feedback adjustment of the roll roller. After the arc length measurement module is used to calculate the total arc length of the upper and lower sides of the iron sheet, and the weld edge detection module is used to measure the repeated arc length of the weld edge area, the position of each sleeve in the movable sleeve frame 34 is adjusted according to the calculation results.

[0081] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A sheet metal barrel rolling device capable of welding edge detection, comprising a rolling frame (1) and a rolling mechanism (3), wherein the rolling mechanism (3) bends the sheet metal through three sets of rollers, and is characterized in that: The rolling mechanism (3) comprises an upper roller assembly (31) and a lower roller assembly (32), wherein the upper roller assembly (31) comprises an upper shaft roller (311), and the lower roller assembly (32) comprises a lower shaft roller (321), and the two lower shaft rollers (321) and the upper shaft roller (311) form a plate rolling roller of the rolling mechanism (3), and a fixed sleeve frame (33) is provided on one side of the upper roller assembly (31) and the lower roller assembly (32). When the iron barrel produced is cylindrical, it is ensured that the iron sheet is rolled on the rolling mechanism (3) with equal rolling curvatures on both sides, so that the upper and lower openings of the formed iron barrel are both in a flush state; A movable sleeve frame (34) is provided on the other side of the upper roller assembly (31) and the lower roller assembly (32); the upper shaft roller (311) and the lower shaft roller (321) rotate between the fixed sleeve frame (33) and the movable sleeve frame (34); the axis centers of the upper shaft roller (311) and the lower shaft roller (321) on one side of the fixed sleeve frame (33) are in a fixed position; the axis centers of the upper shaft roller (311) and the lower shaft roller (321) on one side of the movable sleeve frame (34) are adjustable; when the rolled iron drum is required to be in a truncated cone shape, the axis center position of the upper shaft roller (311) or the lower shaft roller (321) on the movable sleeve frame (34) is appropriately adjusted; when the axis center position of one of the upper shaft rollers (311) or the lower shaft roller (321) is changed, the curvature of the curling by the two lower shaft rollers (321) and the one upper shaft roller (311) is changed accordingly, thereby curling the iron sheet into a truncated cone shape; An arc adjustment mechanism is provided on the outer side wall of the movable sleeve frame (34), and the arc adjustment mechanism adjusts the position of the plate rolling roller on the movable sleeve frame (34), thereby changing the bending arc of both sides of the plate rolling roller. A weld edge detection mechanism (7) is provided on one side of the roll frame (1), and the weld edge detection mechanism (7) comprises a side plate (71), a barrel hanging frame (72) and a detection frame (73). The side plate (71) is fixedly connected to the outer side wall of the roll frame (1), the barrel hanging frame (72) is fixedly connected to the outer side wall of the side plate (71), and the detection frame (73) is rotatably connected to the outer side wall of the side plate (71). The barrel hanging frame (72) is used to suspend the rolled iron barrel. An ultrasonic detector is provided below the detection frame (73), and the detection frame (73) uses the ultrasonic detector to perform ultrasonic detection on the iron barrel to detect the thickness of the inner wall of the iron barrel, thereby measuring the repeated length of the iron sheet at the weld edge.

2. The sheet metal barrel roll device capable of welding edge detection according to claim 1, characterized in that: The movable sleeve frame (34) is provided with a third shaft sleeve (341) and a fourth shaft sleeve (342), the fixed sleeve frame (33) is provided with a first shaft sleeve (331) and a second shaft sleeve (332), the outer side wall of the detection frame (73) is fixedly connected to a lever (75), the side wall of the side plate (71) is provided with an annular groove (74), and the lever (75) is slidably connected to the inner side wall of the annular groove (74).

3. The sheet metal barrel roll device capable of welding edge detection according to claim 1, characterized in that: One end of the upper shaft roller (311) is fixedly connected to a universal joint 1 (313), one end of the universal joint 1 (313) is fixedly connected to a coupling 1 (312), the coupling 1 (312) is transmission-connected to a first shaft sleeve (331), and the other end of the upper shaft roller (311) is fixedly connected to a universal joint 2 (314), one end of the universal joint 2 (314) is transmission-connected to a third shaft sleeve (341).

4. The sheet metal barrel roll device capable of welding edge detection according to claim 1, characterized in that: One end of the lower shaft roller (321) is fixedly connected to universal joint three (323), one end of universal joint three (323) is fixedly connected to coupling two (322), coupling two (322) is transmission-connected to the second shaft sleeve (332), and the other end of the lower shaft roller (321) is transmission-connected to the fourth shaft sleeve (342).

5. The sheet metal barrel roll device capable of welding edge detection according to claim 4, characterized in that: The arc adjustment mechanism comprises an expansion mechanism (5), the expansion mechanism (5) comprises an electric cylinder 1 (51), the output end of the electric cylinder 1 (51) is fixedly connected to a telescopic column (52), the outer wall of the telescopic column (52) is rotatably connected to a flip rod (53), one end of the flip rod (53) is rotatably connected to a hinge (54), the flip rod (53) is rotatably connected to a fourth shaft sleeve (342) via the hinge (54), a tension spring (344) is provided between the two fourth shaft sleeves (342), the upper surface of the movable sleeve frame (34) is fixedly connected to an arc rail (55), the interior of the arc rail (55) is slidably connected to a sliding block (343), and the sliding block (343) is fixedly connected to the fourth shaft sleeve (342).

6. The sheet metal barrel roll device capable of welding edge detection according to claim 3, characterized in that: The arc adjustment mechanism also includes an electric cylinder 2 (6), the electric cylinder 2 (6) being mounted at the center position of the top surface of the movable sleeve frame (34), the bottom center position of the movable sleeve frame (34) being fixedly connected to a limit frame (4), the third shaft sleeve (341) being slidably connected to the inner side wall of the limit frame (4), and the output end of the electric cylinder 2 (6) passing through the bottom wall of the movable sleeve frame (34) and being fixedly connected to the third shaft sleeve (341).

7. The sheet metal barrel roll device capable of welding edge detection according to claim 2, characterized in that: The outer side wall of the roll frame (1) is provided with a driving mechanism (2), the driving mechanism (2) comprising a servo motor (21) and a reducer (23), the output end of the servo motor (21) being drivingly connected to a driving belt (22), the other end of the driving belt (22) being drivingly connected to an input end of the reducer (23), the outer side wall of the second shaft sleeve (332) being fixedly connected to a sprocket (24), the output end of the reducer (23) being fixedly connected to the sprocket (24), and a chain belt (25) being drivingly connected between the two sprockets (24).

8. A roll shape verification method for a sheet metal drum capable of welding edge detection, characterized in that: The sheet metal barrel roll device capable of welding edge detection as described in any one of claims 1 to 7 is used, comprising the following steps: S1. Inputting the curvature value of the iron sheet: according to the shape of the iron sheet barrel to be prepared, the iron sheet is cut into iron sheets with a specific curvature by a laser cutting device, and the iron sheet is fed into the rolling device while inputting its curvature value; S2. Adjusting the bending curvature of the plate rolling rollers: According to the bevel angle of the formed iron barrel and the curvature value of the iron sheet, the bending curvature of the two sides of the iron sheet between the upper shaft roller (311) and the lower shaft roller (321) is adjusted, and the spacing of the plate rolling rollers is adjusted based on this data; S3, measuring the total arc length of the upper and lower sides of the iron sheet: when the iron sheet is rolled by the upper shaft roller (311) and the lower shaft roller (321), the contact time between the two ends of the upper shaft roller (311) and the lower shaft roller (321) and the iron sheet is measured, and the total arc length of the upper and lower sides of the iron sheet is calculated to obtain the central angle of the circle corresponding to the upper and lower sides of the iron sheet; S4, detecting the repetitive length of the weld edge: when the iron sheets in the weld edge area overlap, the thickness thereof is greater than the initial thickness of the iron sheets, the thickness of the iron sheets is detected from the inner wall of the iron sheet barrel by using the detection frame (73), and the repetitive length of the weld edges of the upper and lower sides of the iron sheet barrel is measured according to the numerical difference obtained by ultrasonic detection; S5. Calculate the curvature of the upper and lower sides of the roll: According to the total arc length of the upper and lower sides of the iron sheet measured during rolling, measure the repeated arc length of the weld edge area under ideal conditions, and combine it with the actual measured repeated arc length of the weld edge to calculate whether the upper and lower mouths of the rolled iron barrel are flush, and adjust the shape of the rolled iron barrel.

9. The roll shape verification method of a sheet metal drum capable of welding edge detection according to claim 8, characterized in that: The roll shape verification system is also used, including: arc length measurement module, weld edge detection module, microprocessor and barrel edge curvature adjustment module; The arc length measurement module comprises a measuring encoder and a pressure sensor, wherein the pressure sensor is used to measure the contact between the iron sheet and the lower shaft roller (321), and the measuring encoder is used to measure the moving distance of the iron sheet corresponding to the rotation of the lower shaft roller (321) during the process, thereby measuring the total arc length of the upper and lower sides of the iron sheet; The weld edge detection module includes an ultrasonic detector, and the data measured by the ultrasonic detector is fitted with an acoustic wave graph to draw a fitting graph of the weld edge of the iron barrel; The barrel edge curvature adjustment module includes a control encoder, which is used to adjust the stroke of the electric cylinder 1 (51) and the electric cylinder 2 (6); The microprocessor is used to calculate the arc lengths of the upper and lower edges of the iron sheet and the repeated arc lengths of the welded edges, and to adjust the output power of the barrel edge arc adjustment module.

10. The roll shape verification method of a sheet metal drum capable of welding edge detection according to claim 9, characterized in that: The relationship between the effective arc length of the iron sheet, the curvature value of the iron sheet and the bevel angle of the iron barrel is as follows: ； In the formula, is the bevel angle of the iron tube, is the effective arc length of the curl under the iron sheet, is the curvature value of the iron sheet.

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