Automatic curvature adjusting device of bent pipe conveying line

Abstract

The utility model belongs to the technical field of bend pipe conveying line curvature adjustment, and discloses an automatic curvature adjusting device of a bend pipe conveying line, which is characterized in that a central disc is fixedly arranged at the central position of a fan-shaped disc; a control system for controlling automatic adjustment of curvature radiuses of the driven roller group and the hydraulic lifting driving roller group is vertically and fixedly arranged at the center of the upper part of the central disc; the driven roller set and the hydraulic lifting driving roller set are installed on the installation groove and the V-shaped sliding groove in a matched mode, and the hydraulic lifting driving roller set is installed at the two ends of the upper portion of the fan-shaped disc in a matched mode. The linear lead screw module used for driving the driven roller set and the hydraulic lifting driving roller set to conduct displacement adjustment is fixedly installed at the center position of the bottom of the installation groove. And a laser distance measuring sensor for sensing a measured distance is fixedly arranged on the laser distance measuring sensor plate. The utility model has the beneficial effects that the adaptive adjustment precision of the curvature radius of the bent pipe conveying line is improved, the driving power for conveying the processed bent pipe is improved, and the occurrence of overload faults of the motor is reduced.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the curvature adjustment technical field of bend pipe conveying line in the process of bend pipe anticorrosion adhesive tape winding, specifically relates to a curvature automatic adjusting device of bend pipe conveying line. BACKGROUND

[0002] ‌The bend pipe conveying line is mainly used in the winding manufacturing process of the bend pipe epoxy layer spraying and anticorrosion adhesive tape. In the winding process of the bend pipe surface anticorrosion adhesive tape, the bend pipe is first conveyed to the electromagnetic preheating device through the bend pipe conveying line to preheat the bend pipe body, then the surface of the preheated bend pipe body is sprayed with the epoxy layer through the epoxy layer spraying device, and finally the bend pipe surface is wound with the anticorrosion adhesive tape through the anticorrosion adhesive tape winding device. In the above manufacturing process of the bend pipe, the bend pipe conveying line is an important equipment for automatically conveying the bend pipe. Since the curvature radii (bend degrees) of different specifications of bend pipes are different, the conveying line needs to be able to adapt to bend pipes with different curvature radii, so that the center lines of bend pipes with different curvature radii always remain at the center positions of the driving roller combination and the driven roller group of the conveying line, and under the cooperation of the driving roller combination and the driven roller group, the bend pipe can smoothly pass through the center of the electromagnetic preheating device, the epoxy layer spraying device and the anticorrosion tape winding device, thereby realizing the winding of high-quality anticorrosion adhesive tape and improving the anticorrosion performance of the bend pipe.

[0003] In the prior art, the pipe bending conveying line is usually composed of a driven roller set, a driving roller set and a circular bottom plate, the driving roller set is arranged at the positions of both ends of the circular bottom plate, and a plurality of driven roller sets are arranged in the middle to form a ring-shaped pipe bending conveying line, and the on-line conveying of the pipe bending is realized through the driving force of the driving roller set and the rolling support of the driven roller set. In order to adapt the curvature radius of the pipe bending conveying line to the curvature radius of pipes of different specifications, the currently adopted technical means is that: installation grooves are uniformly arranged on the circumference of the circular bottom plate, the driving roller set and the driven roller set are installed on the installation grooves and fixed through a screw nut; an operator calculates the curvature radius of the driving roller set and the driven roller set according to the known curvature radius of the pipe bending, adjusts the position of the installation groove of the circular bottom plate of the driving roller set and the driven roller set to adjust the curvature radius of the pipe bending conveying line, so that the curvature radius of the pipe bending conveying line matches the curvature radius of the pipe bending to be processed, and finally the positions of the driving roller set and the driven roller set are fixed by using the screw nut. The main technical problems existing in the above-mentioned adaptability adjustment of the curvature radius of the pipe bending conveying line are: 1. The adaptability adjustment precision of the curvature radius of the driving roller set and the driven roller set (the curvature radius of the pipe bending conveying line) is not enough, which is easy to cause deviation in the pipe bending conveying process, and the adaptability adjustment of the pipe bending conveying line has low automation degree. 2. The existing driving roller set adopts motor driving as the driving power, and for conveying a pipe bending with heavy weight, the driving force is not enough, and the motor is prone to overload failure. Based on the above-mentioned technical problems existing in the prior art, the inventor has developed a curvature automatic adjustment device for a pipe bending conveying line, which can well solve the above-mentioned problems existing in the prior art. Content of the utility model

[0004] The curvature automatic adjustment device for the pipe bending conveying line has the advantages of simple structure, scientific and reasonable design, and can realize automatic and accurate adjustment of the curvature radius of the pipe bending conveying line. The curvature automatic adjustment device for the pipe bending conveying line solves the problems of low adaptability adjustment precision and low automation degree of the curvature radius of the pipe bending conveying line in the prior art, and also solves the problem of overload failure of the motor used as the driving power.

[0005] The utility model discloses a technical scheme is: a curvature automatic adjusting device of elbow pipe conveying line, including center disc, sector and control system, center disc fixedly arranged at the center position of sector, and sector is annular, and sector includes sector body, and the equiangular setting of installation groove is around the circumference of sector body, and V type sliding slot is symmetrically set up at the both sides of installation groove, and V type sliding slot is from the inside circle direction end of installation groove to the outside circle direction and is in the form of through, be provided with the control system vertical fixed setting in the upper center of center disc for controlling the curvature radius automatic adjustment of driven roller group and hydraulic lift drive roller group, and driven roller group, hydraulic lift drive roller group are installed on installation groove and V type sliding slot, and driven roller group is installed on the intermediate position of sector upper portion, and hydraulic lift drive roller group is installed on the both end positions of sector upper portion, be fixedly installed in the bottom center position of installation groove for driving driven roller group, hydraulic lift drive roller group displacement adjustment straight lead screw module, and the bottom of driven roller group, hydraulic lift drive roller group is fixedly connected with the upper portion of straight lead screw module through installation groove, and laser ranging sensor board is arc short board, and laser ranging sensor board is fixedly arranged in the intermediate position of the upper portion of the center direction end of installation groove, and laser ranging sensor board is fixedly provided with laser ranging sensor for inductive determination distance.

[0006] Center disc fixed mounting is on the circular pit of workshop ground excavation upper portion, and center disc is higher than the ground level of workshop.

[0007] The sector opening of sector is used for installing fixed electromagnetic preheating device, epoxy layer spraying device and anticorrosion adhesive tape winding device, and the center of electromagnetic preheating device, epoxy layer spraying device and anticorrosion adhesive tape winding device is circular, and the structure, working principle and winding method of the above-mentioned electromagnetic preheating device, epoxy layer spraying device and anticorrosion adhesive tape winding device belong to the disclosure of prior art, and the person skilled in the art is known, so it is not described too much.

[0008] The control system includes electric control cabinet, and man-machine interaction system fixed setting is in the right upper portion of electric control cabinet, and man-machine interaction system and electric control cabinet are fixedly connected through the fixed rod of L type, and display screen is set up in the front upper portion position of man-machine interaction system, and operation module is set up in the left lower portion position of man-machine interaction system, and PLC control module fixed setting is in the corresponding position of man-machine interaction system inside and display screen, and electric control cabinet is used to provide power supply to man-machine interaction system, display screen, PLC control module and operation module.

[0009] Driven roller group includes support, and support is the U type of bottom protruding, and the both sides of the bottom of support are symmetrically provided with V type lug one, and V type lug one is slidably installed on V type sliding slot, and shaft seat one is radially symmetrically set up on support, and roller shaft one both ends are fixedly installed in the inner ring of bearing of radially symmetric shaft seat one, and roller one is fixedly installed in the intermediate position of roller shaft one, and the surface of roller one is wrapped with rubber layer.

[0010] The hydraulic lifting driving roller group comprises a bottom plate, V-shaped blocks two are symmetrically and fixedly arranged at the bottom of the bottom plate, and the V-shaped blocks two are slidingly fitted on the V-shaped sliding grooves; a U-shaped frame is radially symmetrically arranged on the bottom plate, a lifting groove is formed at the middle position of the upper portion of the U-shaped frame, and the size of the lifting groove is greater than that of the shaft seat two; guide cylinders are fixedly arranged at the two side positions of the U-shaped frame, the upper portions of the guide cylinders pass through the lifting groove and are fixedly connected with the bottom of the shaft seat two, and the bottom of the guide cylinder is fixed with the bottom plate; a hydraulic cylinder is arranged at the middle position of the U-shaped frame, the upper portion of the hydraulic cylinder passes through the lifting groove and is fixedly connected with the bottom center of the shaft seat two, and the bottom of the hydraulic cylinder is fixed with the upper portion of the bottom plate; the two ends of a roller shaft two are fixedly arranged in the inner ring of the bearing of the shaft seat two, a roller two is fixedly arranged at the middle position of the roller shaft two, and the surface of the roller two is wrapped with a rubber layer; a mounting plate is fixedly arranged at the bottom position of the outer end of the shaft seat two in the outer circular direction of the fan-shaped disc body, a hydraulic motor is fixedly arranged on the mounting plate, and the power output end of the hydraulic motor is fixedly connected with the outer circular end of the roller shaft two.

[0011] The two installation grooves, the V-shaped sliding grooves and the remaining installation grooves and V-shaped sliding grooves are slidingly fitted with the hydraulic lifting driving roller group and the driven roller group, respectively, and a straight lead screw module is fixedly arranged at the bottom center of each installation groove.

[0012] The straight lead screw module comprises a mounting frame, the mounting frame is in a U-shaped form, the mounting frame is fixedly arranged at the bottom of the installation groove and at the two side positions in the radial direction, guide rods are longitudinally and symmetrically arranged at the upper position of the mounting frame, bearings are radially and symmetrically fixedly arranged at the center positions of the two ends of the mounting frame, and a lead screw is arranged in the inner ring of the bearings arranged at the two ends of the mounting frame in the radial direction; a stepping motor is fixedly arranged on the outer circular direction end surface of the mounting frame, the power output shaft of the stepping motor is fixedly connected with the outer end of the lead screw; a sliding block is fitted on the lead screw through the internal thread hole, a connecting plate is fixedly arranged at the upper portion of the sliding block, and the upper portion of the connecting plate is fixedly connected with the bottom of the support or the bottom of the bottom plate.

[0013] The hydraulic cylinder and the hydraulic motor are fixedly connected with the electromagnetic valves for respectively controlling the opening and closing of the hydraulic cylinder and the hydraulic motor through the high-pressure oil pipe, and the electromagnetic valves of the hydraulic cylinder and the hydraulic motor are respectively fixedly connected with the man-machine interaction system, the display screen and the PLC control module through the signal line.

[0014] The stepping motor is fixedly connected with the man-machine interaction system, the display screen, the PLC control module and the operation module through the signal transmission line.

[0015] The laser sensing head of the laser ranging sensor is correspondingly arranged at the bottom of the support or the inner circular direction end surface of the bottom plate, and the laser ranging sensor is fixedly connected with the man-machine interaction system, the display screen, the PLC control module and the operation module through the signal line.

[0016] The working process of the curvature automatic adjusting device of the bent pipe conveying line is as follows: I. Determination of the curvature parameter of the bent pipe conveying line: the curvature radius R of the bent pipe conveying line A =R1+R2+R3, R1 represents the distance from the center of the sector disc to the sensing head of the laser ranging sensor, in mm; R2 represents the distance from the sensing head of the laser ranging sensor to the driven roller group support or the hydraulic lifting driving roller group bottom plate (i.e. the displacement distance of the straight lead screw module sliding block), in mm; R3 represents the distance from the driven roller group support or the hydraulic lifting driving roller group bottom plate (i.e. the middle point of the roller one or the roller two), in mm; in the above formula, R1 and R3 can be determined by measuring the actual field working environment and belong to known parameters; as for the numerical value of the processing port radius of the electromagnetic preheating device, the epoxy layer spraying device and the corrosion-resistant adhesive tape winding device, the specific processing port radius is input by the operator into the storage module of the human-computer interaction system through the display screen when the specific equipment parameters are known. II. Calculation of the curvature radius of the processed bent pipe: the calculation formula of the curvature radius of the bent pipe is R=DN×25.4×coefficient; in the above formula, R represents the curvature radius of the bent pipe, in mm; DN represents the nominal diameter of the bent pipe, in mm; 25.4 is a constant; the coefficient is 1.5 or 1.0 (the long radius takes the coefficient of 1.5, and the short radius takes the coefficient of 1.0); the nominal diameter of the series of bent pipes to be processed (known parameter) is input by the operator into the storage module of the human-computer interaction system through the display screen of the human-computer interaction system, and the operating module calculates the curvature radius of the corresponding bent pipe according to the above calculation formula of the curvature radius of the bent pipe, and saves the calculated radius of the corresponding type of bent pipe as a set value. III. Automatic adjustment of the curvature of the bent pipe conveying line: before processing a certain type of bent pipe, the corresponding type of bent pipe curvature radius module is first called out through the display screen of the human-computer interaction system, and then the operator clicks the automatic module on the display screen, at which time the PLC control module sends a start control instruction to the stepping motor of all the straight lead screw modules, the rotation of the stepping motor drives the rotation of the lead screw, and the sliding block starts to move under the meshing cooperation of the internal thread hole of the lead screw and the sliding block, at the same time, the laser ranging sensor senses the distance from the driven roller group support bottom or the hydraulic lifting driving roller group bottom plate, and transmits the measured R2 distance signal to the operating module, and the operating module calculates the curvature radius R of the corresponding type of bent pipe (at this time, R value=R AThe numerical value of (R1+R3) is the numerical value required to adjust R2, and the numerical value required to adjust R2 is subtracted from the distance value of R2 sensed by the laser ranging sensor through the operation module to obtain the actual adjustment value (positive or negative) of R2, if it is positive, the stepper motor of the straight lead screw module rotates clockwise, if it is negative, the stepper motor rotates counterclockwise, and finally, under the displacement action of the sliding block and the connecting plate, the V-shaped block one of the driven roller set or the V-shaped block two of the hydraulic lifting drive roller set is displaced by the sliding fit of the V-shaped sliding groove by the actual adjustment value of R2, that is, the position adjustment of all the driven roller sets and the hydraulic lifting drive roller sets in the installation groove of the sector plate is completed, and finally the curvature automatic adjustment of the pipe bending conveying line is completed.

[0017] The beneficial effects of the utility model are as follows: through the setting of the center disc, the sector plate, the control system, the driven roller set, the hydraulic lifting drive roller set, the straight lead screw module and the laser ranging sensor, the automatic linkage control of the man-machine interactive system, the display screen, the PLC control module, the operation module, the electromagnetic valve of the hydraulic cylinder of the hydraulic lifting drive roller set, the electromagnetic valve of the hydraulic motor, the stepper motor of the straight lead screw module and the laser ranging sensor is utilized

[0018] The curvature radius adaptability adjustment precision of the pipe bending conveying line is improved, the degree of automation is improved, and the driving power for conveying the processed pipe is also improved, and the occurrence of motor overload failure is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a structural schematic view of the utility model.

[0020] Figure 2 This utility model Figure 1 A schematic diagram of the structure viewed from below;

[0021] Figure 3 This is a schematic diagram of the control system of this utility model;

[0022] Figure 4 This is a cross-sectional view of the driven roller assembly linear screw group of this utility model;

[0023] Figure 5 This is a schematic diagram of the structure of the hydraulic lifting drive roller assembly of this utility model;

[0024] The diagram shows the following markings: 1. Central disc; 2. Sector-shaped disc; 21. Sector-shaped disc body; 22. Mounting groove; 23. V-shaped slide groove; 3. Control system; 31. Electrical control cabinet; 32. Human-machine interface system; 33. Fixed rod; 34. Display screen; 35. PLC control module; 46. Calculation module; 4. Driven roller group; 41. Bracket; 42. Shaft seat one; 43. Roller shaft one; 44. Roller one; 45. V-shaped protrusion one; 5. Hydraulic lifting drive roller group; 51. 52. Base plate, 53. U-shaped frame, 54. Lifting groove, 55. Guide cylinder, 56. Hydraulic cylinder, 57. Shaft seat 2, 58. Roller shaft 2, 59. V-shaped protrusion 2, 510. Mounting plate, 511. Hydraulic motor, 6. Linear screw module, 61. Mounting bracket, 62. Guide rod, 63. Bearing, 64. Screw, 65. Stepper motor, 66. Sliding block, 67. Connecting plate, 7. Laser rangefinder sensor plate, 8. Laser rangefinder sensor. Detailed Implementation

[0025] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings.

[0026] This utility model provides an automatic curvature adjustment device for a bent pipe conveyor line:

[0027] like Figure 1 , 2 As shown, the central disk 1 is fixedly set at the center of the sector disk 2. The sector disk 2 is ring-shaped and includes a sector disk body 21. The mounting groove 22 is set at equal angles around the circumference of the sector disk body 21. The V-shaped groove 23 is symmetrically arranged on both sides of the mounting groove 22. The V-shaped groove 23 extends from the inner circle of the mounting groove 22 to the outer circle.

[0028] The central plate 1 provides a platform for the fixed installation of the control system 3 and serves as a manhole for maintenance. When the linear screw module 6 at the bottom of the sector plate 2 malfunctions, the operator can enter the interior to perform maintenance work by removing the central plate 1.

[0029] The installation groove 22 of the sector plate 2 provides a fixed installation platform for the driven roller set 4 or the hydraulic lifting driving roller set 5 and the linear screw module 6. Through the meshing and rotating cooperation of the screw 64 and the sliding block 66, the connecting plate 67 is driven to displace, thereby driving the driven roller set 4 or the hydraulic lifting driving roller set 5 to displace.

[0030] During the displacement of the driven roller set 4 or the hydraulic lifting driving roller set 5, the V-shaped sliding groove 23 is used in cooperation with the V-shaped protrusion one 45 at the bottom of the driven roller set 4 or the V-shaped protrusion two 59 of the hydraulic lifting driving roller set 5. On one hand, the V-shaped sliding groove 23 plays a guiding role for the displacement of the driven roller set 4 or the hydraulic lifting driving roller set 5. On the other hand, the V-shaped sliding groove 23 prevents the deviation of the curvature track of the bent pipe during the conveying of the bent pipe.

[0031] As shown in FIGS. 3, Figure 1 , 2 , the control system 3 for controlling the automatic adjustment of the curvature radius of the driven roller set 4 and the hydraulic lifting driving roller set 5 is vertically fixed on the upper center of the center plate 1. The control system 3 includes an electric control cabinet 31, a man-machine interactive system 32 fixedly arranged on the right upper portion of the electric control cabinet 31, a display screen 33 arranged on the front upper portion of the man-machine interactive system 32, an operation module 35 arranged in the inner left lower portion of the man-machine interactive system 32, and a PLC control module 34 fixedly arranged in the inner portion of the man-machine interactive system 32 and corresponding to the display screen 33. The electric control cabinet 31 is used to provide power supply to the man-machine interactive system 32, the display screen 33, the PLC control module 34, and the operation module 35.

[0032] Through the automatic linkage control of the man-machine interactive system 32, the display screen 33, the PLC control module 34, the operation module 35, the electromagnetic valve of the hydraulic cylinder 55 of the hydraulic lifting driving roller set, the electromagnetic valve of the hydraulic motor 511, the stepping motor 65 of the linear screw module 6, and the laser ranging sensor 8, on one hand, the man-machine interactive input and automatic control of the curvature parameters of the bent pipe conveying line are realized. On the other hand, the calculation of the curvature radius of the bent pipe, the calculation of the required adjustment value of R2, the calculation of the actual adjustment value of R2, and the calculation of the concentric height of the processing bent pipe and the processing mouth of the electromagnetic preheating device, the epoxy layer spraying device, and the anticorrosive adhesive tape winding device are realized by using the operation module 35.

[0033] As shown in FIGS. 3, Figure 1 , 2, 4, the driven roller group 4, hydraulic lifting drive roller group 5 is installed on the mounting groove 22 and V type chute 23, the driven roller group 4 is installed in the middle position of the upper part of the sector plate 2, the hydraulic lifting drive roller group 5 is installed in the upper part of the sector plate 2 at both ends; for driving the driven roller group 4, hydraulic lifting drive roller group 5 displacement adjustment linear lead screw module 6 is fixedly installed at the bottom center of the mounting groove 22, the bottom of the driven roller group 4, hydraulic lifting drive roller group 5 and the upper part of the linear lead screw module 6 are fixedly connected through the mounting groove 22.

[0034] The above through the driven roller group 4, hydraulic lifting drive roller group 5, linear lead screw module 6, in the engagement of the screw 64 and the sliding block 66, drive the connecting plate 67 to produce displacement adjustment, on the one hand, realize the curvature radius of all the driven roller group 4, hydraulic lifting drive roller group 5 center point on the pipe bending conveying line and the accurate matching of the curvature radius of the processing pipe bending, so as to realize the high consistency of the curvature radius of the pipe bending conveying line and the processing pipe bending. On the other hand, in the sliding fit of the screw 64, the sliding block 66, the connecting plate 67 and the V type convex block one 45 at the bottom of the driven roller group 4, the V type convex block two 59 at the bottom of the hydraulic lifting drive roller group 5, the deviation of the pipe bending conveying curvature track is effectively prevented, and the accuracy and smoothness of the processing pipe bending on the pipe bending conveying line are improved.

[0035] As shown in Figure 1 and 4 , the laser ranging sensor plate 7 is arc short plate, the laser ranging sensor plate 7 is fixedly arranged on the upper middle position of the installation groove 22 towards the center direction end, the laser ranging sensor plate 7 is fixedly provided with laser ranging sensor 8 for sensing distance.

[0036] The above through the setting of laser ranging sensor 8, the distance value sensed by laser ranging sensor 8 is used, and the step motor 65 of linear lead screw module 6 is matched, on the one hand, the required adjustment value of R2 can be calculated, on the other hand, the calculation of the actual adjustment value of R2 is realized.

[0037] As shown in Figure 1 and 4 , the driven roller group 4 includes support 41, the support 41 is U type with bottom protruding, the V type convex block one 45 is symmetrically arranged on both sides of the bottom of the support 41, the V type convex block one 45 is slidably installed on the V type chute 23, the shaft seat one 42 is radially and symmetrically arranged on the support 41, the roller shaft one 43 is fixedly installed in the bearing inner ring of the radially and symmetrically arranged shaft seat one 42; the roller one 44 is fixedly installed in the middle position of the roller shaft one 43, the surface of the roller one 44 is wrapped with rubber layer.

[0038] The above-mentioned setting of the support 41, the shaft seat one 42, the roller shaft one 43 and the roller one 44, under the driving cooperation of the hydraulic lifting driving roller group 5, makes the roller one 44 rotate around the shaft seat one 42 through the roller shaft one 43, realizes the rotation of the roller one 44, on the one hand, provides the cooperation rotation for the conveying of the bent pipe, on the other hand, plays a small friction force support role for the bent pipe.

[0039] As shown in Figure 5 , the hydraulic lifting driving roller group 5 includes a bottom plate 51, the bottom of the bottom plate 51 is symmetrically and fixedly provided with a V-shaped lug two 59, the V-shaped lug two 59 is slidingly and cooperatively installed on the V-shaped sliding groove 23; a U-shaped frame 52 is radially and symmetrically arranged on the bottom plate 51, a lifting groove 53 is formed in the upper middle position of the U-shaped frame 52, the size of the lifting groove 53 is greater than the size of the shaft seat two 56; guide cylinders 54 are fixedly arranged at both sides of the U-shaped frame 52, the upper parts of the guide cylinders 54 pass through the lifting groove 53 and are fixedly connected with the bottoms of the shaft seat two 56, the bottoms of the guide cylinders 54 are fixed with the bottom plate 51; a hydraulic cylinder 55 is arranged at the middle position of the U-shaped frame 52, the upper part of the hydraulic cylinder 55 passes through the lifting groove 53 and is fixedly connected with the bottom center of the shaft seat two 56, the bottom of the hydraulic cylinder 55 is fixed with the upper part of the bottom plate 51; a roller shaft two 57 is fixedly installed in the inner ring of the bearing of the shaft seat two 56, a roller two 58 is fixedly installed at the middle position of the roller shaft two 57, the surface of the roller two 58 is wrapped with a rubber layer; a mounting plate 510 is fixedly arranged at the bottom position of the outer end of the shaft seat two 56 in the outer circle direction of the fan-shaped disc body 21, a hydraulic motor 511 is fixedly arranged on the mounting plate 510, the power output end of the hydraulic motor 511 is fixedly connected with the outer end of the roller shaft two 57.

[0040] The above-mentioned setting of the bottom plate 51, the U-shaped frame 52, the lifting groove 53, the guide cylinder 54, the hydraulic cylinder 55, the shaft seat two 56, the shaft seat two 56, the roller shaft two 57, the roller two 58, the V-shaped lug two 59, the mounting plate 510 and the hydraulic motor 511, under the cooperation of the automatic precise control of the PLC control module 34 and the comparison operation of the operation module 35, on the one hand, realizes the automatic adjustment of the center of the machining bent pipe and the machining center of the electromagnetic preheating device, the epoxy layer spraying device and the corrosion-resistant adhesive tape winding device; on the other hand, takes the hydraulic motor 511 as the driving force, improves the driving force of the machining bent pipe in the conveying process.

[0041] As shown in Figure 1 , 2As shown in Figure 4, the linear lead screw module 6 includes a mounting bracket 61, which is U-shaped and fixedly mounted on both radial sides of the bottom of the mounting groove 22. Guide rods 62 are longitudinally symmetrically arranged on the upper part of the mounting bracket 61, and bearings 63 are radially symmetrically fixedly arranged at the center of both ends of the mounting bracket 61. The lead screw 64 is installed in the inner ring of the bearings 63 arranged at both radial ends of the mounting bracket 61. A stepper motor 65 is fixedly mounted on the outer circumferential end face of the mounting bracket 61, and the power output shaft of the stepper motor 65 is fixedly connected to the outer end of the lead screw 64. A sliding block 66 is mounted on the lead screw 64 through an internal threaded hole, and a connecting plate 67 is fixedly arranged on the upper part of the sliding block 66. The upper part of the connecting plate 67 is fixedly connected to the bottom of the bracket 41 or the bottom of the base plate 51.

[0042] The above-mentioned mounting bracket 61, guide rod 62, bearing 63, lead screw 64, stepper motor 65, sliding block 66, and connecting plate 67 are used to drive the stepper motor 65. Through the meshing between the lead screw 64 and the sliding block 66, the connecting plate 67 is linearly displaced in the radial direction, which in turn drives the driven roller group 4 and the hydraulic lifting drive roller group 5 to adjust the radial position of the sector disk 2.

[0043] like Figures 1-5 As shown, the working process of this automatic curvature adjustment device for the bent pipe conveyor line is as follows: 1. Determination of the curvature parameters of the bent pipe conveyor line: The radius of curvature R of the bent pipe conveyor line... A=R1+R2+R3, R1 represents the distance from the center of the fan-shaped disc 2 to the sensing head of the laser ranging sensor 8, in units of mm; R2 represents the distance from the sensing head of the laser ranging sensor 8 to the support 41 of the driven roller set 4 or the bottom plate 51 of the hydraulic lifting drive roller set 5 (i.e. the displacement distance of the sliding block 66 of the linear lead screw module 6), in units of mm; R3 represents the distance from the support 41 of the driven roller set 4 or the bottom plate 51 of the hydraulic lifting drive roller set 5 (i.e. the middle point of the roller one 44 or the roller two 58), in units of mm; in the above formula, R1 and R3 can be determined by measuring the actual on-site working environment and are known parameters; as for the numerical value of the processing port radius of the electromagnetic preheating device, the epoxy layer spraying device and the corrosion-resistant adhesive tape winding device, the specific processing port radius is input by the operator into the storage module of the human-computer interaction system 31 through the display screen 33 when the specific equipment parameters are known. Two, calculation of the curvature radius of the bent pipe: the calculation formula of the curvature radius of the bent pipe is R = DN × 25.4 × coefficient; in the above formula, R represents the curvature radius of the bent pipe, in units of mm; DN represents the nominal diameter of the bent pipe, in units of mm; 25.4 is a constant; the coefficient is 1.5 or 1.0 (the long radius takes a coefficient of 1.5 and the short radius takes a coefficient of 1.0); the nominal diameter of the series of bent pipes to be processed (known parameters) is input by the operator into the storage module of the human-computer interaction system 31 through the display screen 33 of the human-computer interaction system 31, and the curvature radius of the corresponding bent pipe is calculated by the operation module 35 according to the above calculation formula of the curvature radius of the bent pipe, and the calculated radius of the corresponding type of bent pipe is saved as a set value. Three, automatic adjustment of the curvature of the bent pipe conveying line: before processing a certain type of bent pipe, first call out the curvature radius module of the corresponding type of bent pipe through the display screen 33 of the human-computer interaction system 31, and then the operator clicks the automatic module on the display screen 33, at this time the PLC control module 34 sends a start control instruction to the stepping motor 65 of all linear lead screw modules 6, the rotation of the stepping motor 65 drives the rotation of the lead screw 64, which starts to move under the meshing cooperation of the lead screw 64 and the sliding block 66 internal thread hole, at the same time the laser ranging sensor 8 senses the distance from the bottom of the support 41 of the driven roller set 4 or the bottom plate 51 of the hydraulic lifting drive roller set 5, and transmits the measured R2 distance signal to the operation module 35, and the operation module 35 calculates the curvature radius R of the corresponding type of bent pipe according to the curvature radius R of the corresponding type of bent pipe (at this time R value = R AThe numerical value of (R1+R3) is the value needed to adjust R2. The value needed to adjust R2 is subtracted from the distance value of R2 sensed by the laser ranging sensor 8 through the operation module 35, and the actual adjustment value (positive or negative) of R2 is obtained. If it is positive, the stepper motor 65 of the straight lead screw module 6 rotates clockwise. If it is negative, the stepper motor 65 rotates counterclockwise. Finally, under the displacement action of the sliding block 66 and the connecting plate 67, the V-shaped block one 45 of the driven roller set 4 or the V-shaped block two 59 of the hydraulic lifting drive roller set 5 is displaced by the sliding fit of the V-shaped sliding groove 23 by the actual adjustment value of R2, which completes the position adjustment of all the driven roller sets 4 and the hydraulic lifting drive roller sets 5 in the installation groove 22 of the sector plate 2, and finally completes the automatic curvature adjustment of the pipe bending conveying line.

[0044] Many modifications to the above-described embodiments will be apparent to those of ordinary skill in the art and the general principles defined herein can be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not to be limited to the embodiments set forth above but is to be accorded the widest scope consistent with the principles and novel features to be inferred from the herein disclosed teachings.

Claims

1. A curvature automatic adjustment device of a bent pipe conveying line, comprising a center disc, a sector disc and a control system, the center disc is fixedly arranged at a center position of the sector disc, and the sector disc is in a ring shape, characterized in that: The sector plate comprises a sector plate body, mounting grooves arranged at equal angles around the circumference of the sector plate body, V-shaped sliding grooves symmetrically arranged on both sides of the mounting grooves, the V-shaped sliding grooves being in a through state from the inner circle direction end to the outer circle direction of the mounting grooves; a control system for controlling automatic adjustment of the curvature radius of the driven roller set and the hydraulic lifting driving roller set is vertically and fixedly arranged at the upper center of the center plate; the driven roller set and the hydraulic lifting driving roller set are cooperatively arranged on the mounting grooves and the V-shaped sliding grooves, the driven roller set is cooperatively arranged at the middle position of the upper part of the sector plate, and the hydraulic lifting driving roller set is cooperatively arranged at the two end positions of the upper part of the sector plate; a linear lead screw module for driving displacement adjustment of the driven roller set and the hydraulic lifting driving roller set is fixedly arranged at the bottom center position of the mounting groove, and the bottom of the driven roller set and the hydraulic lifting driving roller set is fixedly connected with the upper part of the linear lead screw module through the mounting groove; the laser ranging sensor plate is an arc-shaped short plate, the laser ranging sensor plate is fixedly arranged at the middle position of the upper part of the mounting groove towards the center direction end, and the laser ranging sensor plate is fixedly provided with a laser ranging sensor for sensing and measuring distance.

2. A curvature automatic adjustment device for a curved pipe conveying line according to claim 1, characterized in that: The control system comprises an electric control cabinet, a man-machine interaction system fixedly arranged at the upper right side of the electric control cabinet, the man-machine interaction system and the electric control cabinet being fixedly connected through an L-shaped fixing rod, a display screen arranged at the upper front side of the man-machine interaction system, and a calculation module arranged at the lower left side of the inside of the man-machine interaction system, and a PLC control module fixedly arranged at a position corresponding to the display screen inside the man-machine interaction system.

3. A curvature automatic adjustment device for a curved pipe conveying line according to claim 1, characterized in that: The driven roller set comprises a support, the support being in a U-shaped state with a protruding bottom, V-shaped protrusions one symmetrically arranged at the two sides of the bottom of the support, the V-shaped protrusions one being slidingly and cooperatively arranged on the V-shaped sliding grooves, shaft seats one radially and symmetrically arranged on the support, and roller shafts one fixedly arranged at the two ends in the inner rings of the radially and symmetrically arranged shaft seats one; roller wheels one fixedly arranged at the middle positions of the roller shafts one, and the surfaces of the roller wheels one being wrapped with rubber layers.

4. A curvature automatic adjustment device for a bent pipe conveying line according to claim 1, characterized in that: The hydraulic lifting driving roller set comprises a bottom plate, V-shaped protrusions two symmetrically fixedly arranged at the bottom of the bottom plate, the V-shaped protrusions two being slidingly and cooperatively arranged on the V-shaped sliding grooves, U-shaped supports radially and symmetrically arranged on the bottom plate, a lifting groove arranged at the middle position of the upper part of the U-shaped support, the lifting groove being larger in size than the shaft seat two, guide cylinders fixedly arranged at the two side positions of the U-shaped support, the upper parts of the guide cylinders penetrating through the lifting groove and being fixedly connected with the bottom of the shaft seat two, the bottom of the guide cylinder being fixed with the bottom plate, a hydraulic cylinder arranged at the middle position of the U-shaped support, an upper telescopic rod of the hydraulic cylinder penetrating through the lifting groove and being fixedly connected with the bottom center of the shaft seat two, the bottom of the hydraulic cylinder being fixed with the upper part of the bottom plate, roller shafts two fixedly arranged at the two ends in the inner rings of the shaft seats two, roller wheels two fixedly arranged at the middle positions of the roller shafts two, and the surfaces of the roller wheels two being wrapped with rubber layers; a mounting plate fixedly arranged at the bottom position of the outer end of the shaft seat two in the outer circle direction of the sector plate body, a hydraulic motor fixedly arranged on the mounting plate, and a power output end of the hydraulic motor fixedly connected with the outer circle end of the roller shafts two.

5. A curvature automatic adjustment device for a bent pipe conveying line according to claim 1, characterized in that: Two installation grooves adjacent to both sides of the sector opening of the sector plate, V-shaped sliding grooves are slidably fitted with a hydraulic lifting drive roller group, the remaining installation grooves, V-shaped sliding grooves are slidably fitted with a driven roller group, and a straight lead screw module is fixedly arranged at the center of the bottom of each installation groove.

6. A curvature automatic adjustment device for a curved pipe conveying line according to claim 5, characterized in that: The straight lead screw module comprises a mounting bracket, the mounting bracket is U-shaped, the mounting bracket is fixedly arranged at the bottom of the installation groove on the two sides of the radial direction, the guide rod is longitudinally symmetrically arranged at the upper position of the mounting bracket, the bearings are fixedly arranged at the center positions of the two ends of the mounting bracket, and the lead screw is installed in the inner ring of the bearings arranged at the two ends of the mounting bracket; the step motor is fixedly arranged on the outer circular end surface of the mounting bracket, the power output shaft of the step motor is fixedly connected with the outer end of the lead screw; the sliding block is fitted and installed on the lead screw through the internal wire hole, the connecting plate is fixedly arranged on the upper portion of the sliding block, and the upper portion of the connecting plate is fixedly connected with the bottom of the bracket or the bottom of the bottom plate.

7. A curvature automatic adjustment device for a curved pipe conveying line according to claim 4, characterized in that: The hydraulic cylinder and the hydraulic motor are fixedly connected with the electromagnetic valves for controlling the opening and closing of the hydraulic cylinder and the hydraulic motor through the high-pressure oil pipe, and the electromagnetic valves of the hydraulic cylinder and the hydraulic motor are fixedly connected with the man-machine interaction system, the display screen and the PLC control module through signal lines.

8. A curvature automatic adjustment device for a curved pipe conveying line according to claim 6, characterized in that: The step motor is fixedly connected with the man-machine interaction system, the display screen, the PLC control module and the operation module through signal transmission lines.

9. The curvature automatic adjustment device of a bent pipe conveying line according to claim 1, characterized in that: The laser sensing head of the laser ranging sensor is arranged corresponding to the inner circular end surface of the bottom of the bracket or the bottom plate, and the laser ranging sensor is fixedly connected with the man-machine interaction system, the display screen, the PLC control module and the operation module through signal lines.

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