A double-sided rolling device and method for preventing wrinkles on large-size thin plates

Abstract

The present invention provides a double-sided rolling device and method for preventing wrinkles on large-sized thin plates. The device includes a base, a clamping device, an anti-wrinkle device for partially fixing the plate, a plate processing device symmetrically arranged on both sides of the plate, an electroplastic strengthening device, and a plate detection device. The clamping device includes a combined clamp, a first multi-stage cylinder, a second multi-stage cylinder, and a second moving platform. The plate processing device includes a first servo motor, a first coupling, a rolling head, an infrared distance sensor, a workbench, a hydraulic lifting device, a first moving platform, a ball screw, a sliding nut, a vibration-damping pad, a second coupling, and a second servo motor. The present invention can realize simultaneous processing of two surfaces of a plate material, symmetrical force, and ensure good plate forming quality, avoid single-sided deformation, which causes poor deformation quality of the plate, and at the same time make the surface nano-layer thicker, improve and enhance the fatigue strength, corrosion resistance, and wear resistance of the material.

Description

Technical Field

[0001] The invention relates to the field of plate processing, and in particular to a double-sided rolling device and method for wrinkle-proofing of large-size thin plates. Background Art

[0002] In recent years, with the rapid development of various equipment manufacturing industries, the service environment of engineering materials has become increasingly harsh, and the requirements for the surface performance of materials have become increasingly higher. At the same time, the requirements for the surface treatment and processing of plates have also become increasingly higher. The current means of plate surface treatment is to pre-treat the material, such as ultrasonic shot peening or grinding of the plate surface by surface gradient deformation. Since the three-dimensional dimensions of the plate generally vary greatly, the plate will wrinkle during the surface processing due to uneven force, that is, the plate will produce overall warping or local wrinkles during the processing, which seriously affects the quality of the formed part and causes structural defects in the plate. Summary of the invention

[0003] In order to solve the above-mentioned deficiencies of the prior art, the present invention provides a large-size thin plate anti-wrinkle double-sided rolling device and method, which has easy surface forming and high surface forming quality, stable plate structure, and a wide range of applications.

[0004] Specifically, the present invention provides a double-sided rolling device for preventing wrinkles on large-sized thin plates, which includes a clamping device, a plate processing device symmetrically arranged on both sides of the plate, an anti-wrinkle device for partially fixing the plate, an electroplastic strengthening device, and a plate detection device;

[0005] The clamping device comprises a combined clamper, a first multi-stage cylinder, a second multi-stage cylinder and a second moving platform, the lower end of the combined clamper is connected to the second moving platform, the first multi-stage cylinder is used to control the combined clamper to move forward and backward, and the second multi-stage cylinder is used to control the operation of the combined clamper, the combined clamper comprises a clamper slide, a clamper push plate, a clamper chuck and a second spring, the lower end of the clamper slide is fixedly connected to the second moving platform, the lower end of the clamper push plate is installed in the slide of the second moving platform and can slide forward and backward, the bottom of the clamper chuck is installed in the slide of the second moving platform and can slide left and right, and the clamper chuck is connected to the side wall of the clamper slide through the second spring, the second multi-stage cylinder controls the clamper push plate to move in the clamper slide, and the first multi-stage cylinder controls the second moving platform to move, thereby driving the combined clamper to move as a whole;

[0006] The plate processing device comprises a first servo motor, a first coupling and a rolling head;

[0007] The grinding head comprises a grinding head base, a cutter head base, a replaceable cutter head, a first lubricating sleeve, a first compression spring, a first contact probe sensor and a limit device;

[0008] The rolling head is connected to the first servo motor through a first coupling, the rolling head base is connected to the first coupling, the cutter head base is connected to the rolling head base, the replaceable cutter head is connected to the cutter head base, the limit device is symmetrically distributed around the rolling head base and is used to fix the rotation position of the cutter head base, the outer end of the first contact probe sensor is sleeved with a first lubrication sleeve and extends into the replaceable cutter head, and the outer end of the first contact probe sensor is sleeved with a first compression spring, the first contact probe sensor and the first compression spring are combined and located at the center of the rolling head base and the cutter head base and can move within the rolling head base and the cutter head base within a limited range;

[0009] The anti-wrinkle device includes a third multi-stage cylinder, a linear slide rail, an electromagnetic pressure head, a linear sliding workbench and a first external power supply;

[0010] The electromagnetic pressure head is fixedly mounted on the linear sliding workbench and connected to a first external power supply. The linear sliding workbench can slide horizontally on the linear slide rail. The end of the linear slide rail is assembled in the slide groove and is controlled by a third multi-stage cylinder connected thereto to move up and down in the slide groove. The top and bottom of the slide groove are respectively provided with a third multi-stage cylinder.

[0011] The electroplastic strengthening device comprises a second external power source, a first fixed sleeve, a telescopic frame, a first movable sleeve, a first spring, a magnetic suction head and a powered electrode; the electroplastic strengthening device is installed on the linear sliding workbench and can move with it;

[0012] The powered electrode is connected to the first movable sleeve via a first spring, the first movable sleeve is connected to the first fixed sleeve via a telescopic frame, and can be moved inside or out of the first fixed sleeve, the magnetic suction head is fixedly connected to the outer end of the first movable sleeve, and when symmetrically distributed on both sides of the processed plate, can be mutually adsorbed to connect the powered electrode to the processed plate;

[0013] The plate detection device comprises a wire, a second fixed sleeve, a second movable sleeve, a second compression spring, a guide sleeve, a second lubricating sleeve and a second contact probe sensor;

[0014] The outer end of the second contact probe sensor is sleeved with a second lubricating sleeve and extends into the guide sleeve, the inner end of the second contact probe sensor is inserted into the second compression spring, the second contact probe sensor and the second compression spring are placed as a whole in the second movable sleeve, and the second contact probe sensor and the second compression spring are combined with each other and can move within a limited range in the second movable sleeve.

[0015] Preferably, the guide sleeve is fixedly connected to the second movable sleeve, the inner end of the second movable sleeve is installed on the first side of the second fixed sleeve and can slide back and forth, the outer end of the second movable sleeve is arranged on the second side of the second fixed sleeve by threaded rotation, and the telescopic position can be adjusted by threaded rotation on the outer side of the second movable sleeve and fixed with the help of a locking device, and the wire is internally connected to the second contact probe sensor and extends outside the device through the internal hole of the second movable sleeve.

[0016] Preferably, the plate processing device further comprises an infrared distance measuring sensor, a workbench, a hydraulic lifting device, a first moving platform, a ball screw, a sliding nut, a vibration-damping pad, a second coupling and a second servo motor;

[0017] The first servo motor is fixed on the workbench, and the upper end of the hydraulic lifting device is connected to the workbench, so as to control the up and down movement of the workbench. The lower end of the hydraulic lifting device is connected to the first mobile platform through a vibration-damping pad. The first mobile platform controls the left and right movement of the workbench. The second servo motor is connected to the end of the ball screw through a second coupling, and is symmetrically connected to the two ends of the ball screw, and can control the left and right movement of the sliding nut. The sliding nut is connected to the first mobile platform through a bonding structure, so as to further control the left and right movement of the first mobile platform. The infrared ranging sensor is fixed on the workbench and one is arranged on each side of the workbench. The infrared ranging sensor is used to measure the distance from the rolling head to the plate and can work with the second servo motor to complete the precise movement control of the rolling head.

[0018] Another aspect of the present invention provides a rolling method of a large-size thin plate anti-wrinkle double-sided rolling device, which comprises the following steps:

[0019] S1. Adjust the clamping device to install the plate in the clamping device and fix the plate to be processed. When clamping begins, adjust the first multi-stage cylinder to determine the position of the combined clamp according to the size of the plate, and place the plate in the clamping groove. At this time, adjust the second multi-stage cylinder to push the clamping head to the middle through the wedge structure to clamp the plate. After clamping is completed, adjust the position of the second multi-stage cylinder to restore it, and the second spring resets the clamping head to its original position.

[0020] S2. Adjust the plate detection device to select the measurement of plate thickness, plate roughness or plate quality;

[0021] S3, adjusting the plate processing device to determine the processing amount and the working position of the plate processing device;

[0022] S4. Adjust the anti-wrinkle device to fix the area around the plate to be processed;

[0023] S5, adjusting the electroplastic strengthening device to fix the energized electrode around the area to be processed of the plate;

[0024] S6. Start the electroplastic strengthening device and the plate processing device in sequence;

[0025] S7, adjusting the plate processing device to a working position for processing;

[0026] S8, after the local processing is completed, repeat the above steps to process other areas;

[0027] S9. After processing is completed, close the corresponding device and unload the material.

[0028] Preferably, in step S2, when the thickness of the plate is detected, the spiral portion of the outer end of the second movable sleeve is marked with a size scale, the outer end is marked with a 0 scale, and the inner end is marked with a maximum scale D max , the reading pointer is located at the outer port of the second fixed sleeve;

[0029] When starting to measure, move the linear sliding worktables on both sides of the plate to the thickness area to be measured, and make the probe contacts on both sides symmetrically distributed with the plate, and screw the outer end of the second movable sleeve inward until the vertex of the second contact probe sensor contacts the plate or the vertex of the second contact probe sensor at the other end. When the vertexes of the sensors on both sides are in contact, start reading. At this time, the output end of the second contact probe sensor displays a signal change. Adjust the output end so that the signal is 0 when just in contact. The readings indicated by the pointers on the second fixed sleeves on both sides of the plate are D 1 and D 2 , D 1 +D 2 =D is the thickness of the plate. If D 1 +D 2 =0, indicating that the reading is 0, which means there is no plate;

[0030] When measuring the surface roughness of the plate, at the beginning of the measurement, the outer end of the second movable sleeve is screwed inwards, and when the vertex of the second contact probe sensor contacts the plate, it is continued to be screwed inwards by a distance x, and the output end is adjusted so that the output signal is 0, so that the second compression spring is in a working state, and then the locking nut is rotated to move the linear sliding table where the second contact probe sensor is located along a desired measurement direction. At this time, the output end of the second contact probe sensor displays a signal change, and the output signal fluctuates around 0 during the slow movement. The roughness of the plate can be judged according to the amplitude signal of the output probe contact. If the amplitude is large or deviates far from 0, it means that the surface roughness of the plate is large, and vice versa, it means that the surface roughness of the plate is low;

[0031] When testing the quality of the plate, the plate testing device is fixed on the linear sliding table and moves in the plane of the plate following the linear sliding table, so that the thickness of the plate at different positions can be measured, and the quality of the plate is tested according to the thickness distribution and roughness of the measured plate. Specifically:

[0032] At the beginning of the detection, the outer end of the second movable sleeve is screwed inward. When the top point of the second contact probe sensor contacts the plate, continue to screw inward a distance y and adjust the output end so that the output signal is 0, so that the second compression spring is in a working state, and then rotate the locking nut, and perform the same operations as above on a pair of plate detection devices symmetrical to both sides of the plate in turn, and then move the linear sliding workbench connected to the plate detection device along a desired measurement direction. At this time, the output end of the second contact probe sensor displays a signal change. If the second contact probe signals at both ends are positive, it means that both sides of the plate are concave inward; if the second contact probe signals at both ends are negative, it means that both sides of the plate are convex outward; if the second contact probe signals at both ends are one positive and one negative, it means that one side of the plate is convex and the other side is concave.

[0033] Preferably, the method for determining the processing amount in step S3 is as follows: the infrared ranging sensor is used to measure the distance from the workbench to the plate, the spiral part at the bottom of the cutter head is provided with a scale, the distance between the probe and the rolling head is set to a, the distance a is measured by the infrared ranging sensor, the processing amount is α, and before processing, the workbench is moved to the position where the rolling head just contacts the plate. At this time, the sensor reading is -b, and the workbench is moved inward by a distance b. At this time, the sensor reading is 0, and the position of the first moving table at this time is recorded as the γ scale. The moving table is put back, and the cutter head base is rotated outward by the scale α to determine the processing amount. At this time, the first servo motor is started, and the first moving table is moved to the recorded γ scale, so that the rolling head can process the α processing amount.

[0034] Preferably, in step S4, before processing, the third multi-stage cylinder and the linear sliding workbench are adjusted to adjust the required electromagnetic pressure heads on both sides of the plate to the vicinity of the area to be processed. Before starting processing, the first external power supply is started to fix the electromagnetic pressure heads around the area to be processed.

[0035] Preferably, in step S5, the first movable sleeve is pulled out of the first fixed sleeve according to the required placement position of the powered electrode, so that the magnetic suction heads on both sides of the plate are adsorbed at corresponding positions of the plate, and the second external power supply is started to pass current into the area to be processed.

[0036] Preferably, in step S4, before processing, the third multi-stage cylinder and the linear sliding workbench are adjusted to adjust the electromagnetic pressure heads required on both sides of the plate to the vicinity of the area to be processed, and the surfaces of the electromagnetic pressure heads are insulated. Before processing, the first external power supply is started to fix the electromagnetic pressure heads around the area to be processed.

[0037] Preferably, in step S5, the first movable sleeve is pulled out of the first fixed sleeve according to the required placement position of the powered electrode, so that the magnetic suction heads on both sides of the plate are adsorbed at relative positions of the plate, and the second external power supply is started at this time to pass current into the area to be processed.

[0038] Compared with the prior art, the present invention has the following beneficial effects:

[0039] (1) In the present invention, two sets of plate processing devices are symmetrically arranged on the left and right sides, which can realize simultaneous processing of two sides of the plate, symmetrical force, and ensure good plate forming quality, avoid single-sided deformation, resulting in poor deformation quality of the plate, and make the surface nano-layer thicker, improve and enhance the fatigue strength, corrosion resistance and wear resistance of the material. In addition, since the two servo motors on the left and right sides rotate in different directions, it is conducive to forming a torsion inside the plate in the working area, which can obtain finer grains and a thicker nano-layer, so that the nano-effect is better, thereby improving the forming ability of the plate and improving the performance of the material.

[0040] (2) During the processing of the present invention, the grinding thickness and the feed of the grinding head are controlled by an infrared ranging sensor and a processing amount fine-tuning structure (i.e., the spiral part of the cutter head base with a scale on the outside), with high processing accuracy, which can achieve the purpose of processing a warped plate into a flat plate. And it can accurately control the processing thickness and process the warped plate to be flat. During the rolling process, the processing status of the plate can be monitored at any time according to the first contact probe sensor and its signal output, and the process can be adjusted according to the processing effect. The roughness and flatness of the plate surface can be measured during the processing. In addition, the plate detection device can be set up to selectively measure the surface roughness and other properties of the plate as needed, and the required devices are all installed on the linear sliding workbench, which is easy to use, easy to operate the measurement process and highly accurate.

[0041] (3) The present invention can determine the processing amount by rotating the cutter head base and combining it with the infrared distance sensor to more accurately determine the processing amount, and the replaceable cutter can be selected according to the plate materials of different materials. The processing type is wide and can be applied to a variety of application scenarios.

[0042] (4) Both ends of the plate clamping device of the present invention are movable and can be adjusted according to the size and thickness of the clamped plate, which is suitable for clamping plates of most sizes. The clamping device can move with the second moving platform and adjust its position at will, which is convenient for processing. At the same time, the clamping device can clamp the plate horizontally to avoid local deformation of the plate caused by uneven upper and lower edges of the plate. The entire clamping device uses a multi-stage cylinder for moving operation, and the clamping effect is stable and convenient.

[0043] (5) The processing anti-wrinkle device of the present invention includes four pairs of electromagnetic pressure heads connected to linear slide rails. The surfaces of the electromagnetic pressure heads are insulated and symmetrically distributed on both sides of the plate. And they can be increased or decreased as needed. It can move arbitrarily within the plane freedom of the plate, fix any local area of ​​the plate, and adjust the size of the fixed area to be processed. It can be adjusted according to the actual situation, and only the local part of the plate is processed to prevent the plate from wrinkling, prevent the deformation and vibration of the plate during the processing from affecting other unprocessed areas and processed areas, and prevent the plate from secondary deformation during the processing. And because only the area to be processed is energized, electric energy is saved, and the current can be prevented from affecting the non-processed area. At the same time, the electroplastic strengthening device can energize the plate during processing to improve the processing performance.

[0044] (6) The base of the present invention is an integral structure, and all other devices are installed on it. The integral structure can prevent the equipment placement factor from affecting the equipment accuracy. In addition, the vibration-damping pad can reduce the vibration caused by the processing process, thereby reducing the offset error of the processing device and maintaining the processing accuracy. The present invention can not only correct the deformed plate, but also process large-sized thin plates and prevent wrinkles and warping during the processing process. At the same time, it can also perform surface gradient nano-processing on the surface of the plate.

[0045] (7) The electromagnetic pressure heads of the plate detection device and the electroplastic strengthening device of the present invention are both installed on the linear sliding workbench. When working, the electroplastic strengthening device is installed on the same linear sliding workbench as the electromagnetic pressure head. Therefore, the energization range of the electroplastic strengthening device is the area around the plate to be processed, that is, the fixed anti-wrinkle area, thereby saving steps and eliminating the need to move the linear sliding workbench again. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] Figure 1 It is a schematic diagram of the overall main structure of the present invention;

[0047] Figure 2 It is a schematic diagram of the overall left-side structure of the present invention;

[0048] Figure 3 It is a schematic diagram of the overall top view structure of the present invention;

[0049] Figure 4 It is a schematic diagram of the mill head structure of the present invention;

[0050] Figure 5 It is a structural schematic diagram of the combined clamp of the present invention;

[0051] Figure 6 It is a structural schematic diagram of the plate detection device of the present invention;

[0052] Figure 7It is a schematic structural diagram of the electroplastic strengthening device of the present invention;

[0053] Figure 8 The figure is a schematic diagram of the process of processing a plate according to the present invention.

[0054] Among them, some of the reference numerals are as follows:

[0055] Plate processing device: 1-first servo motor, 2-first coupling, 3-rolling head, 4-infrared distance sensor, 5-workbench, 6-hydraulic lifting device, 7-first moving table, 8-ball screw, 9-sliding nut, 10-vibration damping pad, 11-second coupling, 12-second servo motor;

[0056] Clamping device: 13-combined clamp, 14-first multi-stage cylinder, 15-second multi-stage cylinder, 16-second moving platform, 1301-clamp slide, 1302-clamp push plate, 1303-clamp chuck, 1304-second spring;

[0057] Anti-wrinkle device: 17-third multi-stage cylinder, 18-linear slide rail, 19-electromagnetic pressure head, 20-linear sliding table, 21-first external power supply, 22-plate detection device, 23-electroplastic strengthening device, 24-base, 25-fixing bolt hole;

[0058] 301- grinding head base, 302- cutter head base, 303- replaceable cutter head, 304- first lubrication sleeve, 305- first compression spring; 306- first contact probe sensor, 307- stop screw;

[0059] Electroplastic strengthening device: 2301-second external power supply, 2302-first fixed sleeve, 2303-telescopic frame, 2304-first movable sleeve, 2305-first spring, 2306-magnetic suction head, 2307-powered electrode;

[0060] Plate detection device: 2201-conducting wire, 2202-second fixed sleeve, 2203-second movable sleeve, 2204-second compression spring, 2205-guide sleeve, 2206-second lubricating sleeve, 2207-second contact probe sensor, 2208-locking nut. DETAILED DESCRIPTION

[0061] Hereinafter, embodiments of the present invention will be described with reference to the drawings.

[0062] like Figures 1 to 7As shown, the present invention provides a double-sided rolling device and method for preventing wrinkles on large-sized thin plates, including a base 24, a clamping device for clamping a plate, a plate processing device symmetrically arranged on both sides of the plate, an anti-wrinkle device for fixing a part of the plate during processing, an electroplastic strengthening device 23 of the plate and a plate detection device 22, and the remaining structures are arranged on the base 24, and a fixing bolt hole 25 is opened on the base 24 for installation.

[0063] The clamping device includes a combined clamper 13, a first multi-stage cylinder 14, a second multi-stage cylinder 15 and a second moving platform 16. The lower end of the combined clamper 13 is connected to the second moving platform 16, the first end of the first multi-stage cylinder 14 is fixedly connected to the base 24, and the second end of the first multi-stage cylinder 14 is connected to the second moving platform 16, so that the combined clamper 13 can be controlled to move forward and backward, the first end of the second multi-stage cylinder 15 is fixedly connected to the side of the equipment, and the second end of the second multi-stage cylinder 15 is connected to the combined clamper 13, so as to control the combined clamper 13.

[0064] like Figure 5 As shown, the combined clamp 13 includes a clamp slide 1301, a clamp push plate 1302, a clamp chuck 1303 and a second spring 1304. The lower end of the clamp slide 1301 is fixedly connected to the second moving platform 16. The lower end of the clamp push plate 1302 is installed in the slide of the second moving platform 16 and can slide forward and backward. The bottom of the clamp chuck 1303 is installed in the slide of the second moving platform 16 and can slide left and right, and it is connected to the side wall of the clamp slide 1301 through the second spring 1304. The second multi-stage cylinder 15 controls the movement of the clamp push plate 1302 in the clamp slide 1301. The first multi-stage cylinder 14 controls the movement of the second moving platform 16, that is, the combined clamp 13 as a whole.

[0065] The plate processing device includes a first servo motor 1, a first coupling 2, a rolling head 3, an infrared distance sensor 4, a workbench 5, a hydraulic lifting device 6, a first moving table 7, a ball screw 8, a sliding nut 9, a vibration-damping pad 10, a second coupling 11 and a second servo motor 12. The first servo motor 1 is fixed on the workbench 5, the upper end of the hydraulic lifting device 6 is connected to the workbench 5, so as to control the up and down movement of the workbench 5, the lower end of the hydraulic lifting device 6 is connected to the first movable platform 7 through the vibration-damping pad 10, and the left and right movement of the workbench 5 is controlled by the first movable platform 7, the second servo motor 12 is connected to the end of the ball screw 8 through the second coupling 11, and is symmetrically connected to the ends of the ball screw 8 at both ends, and can control the left and right movement of the sliding nut 9, the sliding nut 9 is connected to the first movable platform 7 through a bonding structure, so as to control the left and right movement of the first movable platform 7, the infrared ranging sensor 4 is fixed on the workbench and one is arranged on each side, the infrared ranging sensor 4 is used to measure the distance from the rolling head 3 to the plate and can work with the second servo motor 12 to complete the precise movement control of the rolling head 3.

[0066] like Figure 4 As shown, the rolling head 3 includes a rolling head base 301, a tool head base 302, a replaceable tool head 303, a first lubricating sleeve 304, a first compression spring 305, a first contact probe sensor 306 and a limiting device 307. In the embodiment, the limiting device 307 is a stop screw 307.

[0067] The grinding head 3 is connected to the first servo motor 1 through the first coupling 2, the grinding head base 301 is connected to the first coupling 2 through a key connection, the cutter head base 302 is threadedly connected to the grinding head base 301, the replaceable cutter head 303 is connected to the cutter head base 302 by means of screws, and the limiting device is symmetrically distributed around the grinding head base 301 and is used to fix the rotation position of the cutter head base 302. In this embodiment, the limiting device is a stop screw 307, and there are four stop screws 307, which are symmetrically distributed around the grinding head base 301. The outer end of the first contact probe sensor 306 is sleeved with a first lubricating sleeve 304 and extends into the replaceable cutter head 303, that is, it is inserted into the replaceable cutter head 303 with the help of the first lubricating sleeve 304, and the outer part of the inner end of the first contact probe sensor 306 is sleeved with a first compression spring 305, that is, the outer part of the first contact probe sensor 306 located inside the cutter head base 302 is sleeved inside the first compression spring 305, and the first contact probe sensor 306 and the first compression spring 305 are combined with each other and are located at the center of the grinding head base 301 and the cutter head base 302 and can move within the grinding head base 301 and the cutter head base 302 within a limited range.

[0068] The anti-wrinkle device includes a third multi-stage cylinder 17, a linear slide rail 18, an electromagnetic pressure head 19, a linear sliding table 20 and a first external power supply 21. The electromagnetic pressure head 19 is fixedly mounted on the linear sliding table 20 and connected to the first external power supply 21. The linear sliding table 20 can slide horizontally forward and backward on the linear slide rail 18. The end of the linear slide rail 18 is assembled in the slide groove and is controlled by the third multi-stage cylinder 17 connected thereto to move up and down in the slide groove. A third multi-stage cylinder 17 is respectively provided at the top and bottom of the slide groove.

[0069] like Figure 6 As shown, the plate detection device 22 includes a wire 2201, a second fixed sleeve 2202, a second movable sleeve 2203, a second compression spring 2204, a guide sleeve 2205, a second lubricating sleeve 2206, a second contact probe sensor 2207 and a locking nut 2208. The outer end of the second contact probe sensor 2207 is sleeved with the second lubricating sleeve 2206 and extends into the guide sleeve 2205, and the inner end of the second contact probe sensor 2207 is sleeved with the second compression spring 2204. The second contact probe sensor 2207 and the second compression spring 2204 are integrally located in the center of the second movable sleeve 2203, and the second contact probe sensor 2207 and the second compression spring 2204 are combined with each other and can move within the second movable sleeve 2203 within a limited range.

[0070] The guide sleeve 2205 is fixedly connected to the second movable sleeve 2203. The inner end of the second movable sleeve 2203 is mounted on one side of the second fixed sleeve 2202 and can slide forward and backward. The outer end of the second movable sleeve 2203 is set on the other side of the second fixed sleeve 2202 by rotating the outer end thread. The telescopic position can be adjusted by rotating the outer thread of the second movable sleeve 2203, and the position can be fixed by a locking device, i.e., a locking nut 2208. The wire 2201 is internally connected to the second contact probe sensor 2207 and extends to the outside of the device through the inner hole of the second movable sleeve 2203.

[0071] like Figure 7As shown, the electroplastic strengthening device 23 includes a second external power supply 2301, a first fixed sleeve 2302, a telescopic frame 2303, a first movable sleeve 2304, a first spring 2305, a magnetic suction head 2306 and a powered electrode 2307. The electroplastic strengthening device 23 is integrally mounted on the linear sliding workbench 20 and can move with it; the powered electrode 2307 is connected to the first movable sleeve 2304 through the first spring 2305, the first movable sleeve 2304 is connected to the first fixed sleeve 2302 through the telescopic frame 2303, and can move in or out of the first fixed sleeve 2302, the magnetic suction head 2306 is fixedly connected to the outer end of the first movable sleeve 2304, and when symmetrically distributed on both sides of the processed plate, they can be adsorbed to each other and then connect the powered electrode 2307 to the processed plate.

[0072] Preferably, on the other hand, the present invention also provides a double-sided rolling method for preventing wrinkles on large-sized thin plates, such as Figure 8 As shown, it includes the following steps:

[0073] S1. Adjust the clamping device to install the plate in the clamping device and fix the processed plate. When starting to clamp, adjust the first multi-stage cylinder 14 according to the size of the plate to determine the position of the combined clamp 13 and place the plate in the clamping groove. At this time, adjust the second multi-stage cylinder 15 to push the clamper chuck 1303 to the middle through the wedge structure to clamp the plate. After clamping, adjust the position of the second multi-stage cylinder 15 to restore it, and the second spring 1304 resets the clamper chuck 1303 to its original position.

[0074] S2, adjust the plate detection device 22, select to measure the plate thickness, plate roughness or plate quality; in step S2, when detecting the plate thickness, the spiral part of the outer end of the second movable sleeve 2203 is marked with a size scale, the outer end is marked with a 0 scale, and the inner end is marked with a maximum scale D max , the reading pointer is located at the outer port of the second fixed sleeve 2202.

[0075] When starting to measure, move the linear sliding worktable 20 on both sides of the plate to the thickness area to be measured, and make the probe contacts on both sides symmetrically distributed with the plate, screw the outer end of the second movable sleeve 2203 inward until the vertex of the second contact probe sensor 2207 contacts the plate or the vertex of the sensor at the other end. When the vertexes of the sensors on both sides are in contact, start reading. At this time, the output end of the second contact probe sensor 2207 shows a signal change. Adjust the output end so that the signal is 0 when just in contact. The readings indicated by the pointers on the second fixed sleeve 2202 on both sides of the plate are D and D respectively. 1 and D 2 , D 1 +D 2 =D is the thickness of the plate. If D 1 +D2 =0, indicating that the reading is 0, which means there is no plate.

[0076] When measuring the surface roughness of the plate, at the beginning of the measurement, the outer end of the second movable sleeve 2203 is screwed inward, and when the top of the second contact probe sensor 2207 contacts the plate, continue to screw inward a distance x, adjust the output end, make the output signal 0, make the second compression spring 2204 in a working state, and then rotate the locking nut 2208 to move the linear sliding workbench 20 to which the second contact probe sensor 2207 belongs along a desired measurement direction. At this time, the sensor output end displays a signal change, and the output signal fluctuates around 0 during the slow movement. The roughness of the plate can be judged based on the amplitude signal of the output probe contact. If the amplitude is large or deviates far from 0, it means that the surface roughness of the plate is large, otherwise it means that the surface roughness of the plate is low.

[0077] When testing the quality of the plate, the plate testing device 22 is fixed on the linear sliding table 20 and moves with the linear sliding table 20 in the plate plane, so that the thickness of the plate at different positions can be measured, and the quality of the plate can be tested according to the thickness distribution and roughness of the measured plate. Specifically:

[0078] At the beginning of the detection, the outer end of the second movable sleeve 2203 is screwed inward. When the top point of the second contact probe sensor 2207 contacts the plate, continue to screw inward a distance y and adjust the output end so that the output signal is 0, so that the second compression spring 2204 is in working state, and then rotate the locking nut 2208, and perform the same operations as above on a pair of plate detection devices 22 symmetrical on both sides of the plate in turn, and then move the linear sliding workbench 20 connected to the plate detection device 22 along a desired measurement direction. At this time, the output end of the second contact probe sensor 2207 displays a signal change. If the second contact probe signals at both ends are positive, it means that both sides of the plate are concave inward; if the second contact probe signals at both ends are negative, it means that both sides of the plate are convex outward; if the second contact probe signals at both ends are one positive and one negative, it means that one side of the plate is convex and the other side is concave.

[0079] S3, adjust the plate processing device to determine the processing amount and the working position of the plate processing device; the method for determining the processing amount in step S3 is as follows: the infrared ranging sensor 4 is used to measure the distance from the workbench 5 to the plate, and a scale is provided on the spiral part of the bottom of the cutter head. The distance a from the probe to the rolling head 3 is set to a, and the distance a is measured by the infrared ranging sensor 4. The processing amount is α. Before processing, the workbench 5 is moved to the position where the rolling head 3 just contacts the plate. At this time, the sensor reading is -b. The workbench 5 is moved inward by a distance b. At this time, the sensor reading is 0. The position of the first moving table 7 at this time is recorded as the γ scale. The moving table is put back, and the cutter head base 302 is rotated outward by the scale α to determine the processing amount. At this time, the first servo motor 1 is started, and the first moving table 7 is moved to the recorded γ scale. Then the rolling head 3 can process the α processing amount.

[0080] S4, adjust the anti-wrinkle device to fix the area around the plate to be processed; in step S4, before processing, adjust the third multi-stage cylinder 17 and the linear sliding workbench 20, adjust the required electromagnetic pressure heads 19 on both sides of the plate to the area around the area to be processed, and the surfaces of the electromagnetic pressure heads 19 are insulated. Before starting processing, start the first external power supply 21 to fix the electromagnetic pressure heads 19 around the area to be processed to prevent deformation and vibration of the plate during processing from affecting other unprocessed areas and processed areas, and prevent secondary deformation of the plate during processing.

[0081] S5, adjust the electroplastic strengthening device 23, and fix the powered electrode 2307 around the area to be processed of the plate; in step S5, pull the first movable sleeve 2304 out of the first fixed sleeve 2302 according to the required placement position of the powered electrode 2307, so that the magnetic suction heads 2306 on both sides of the plate are adsorbed at the relative positions of the plate, and at this time, start the second external power supply 2301 to pass current into the area to be processed.

[0082] S6, starting the electroplastic strengthening device 23 and the plate processing device in sequence;

[0083] S7, adjusting the plate processing device to a working position for processing;

[0084] S8, after the local processing is completed, repeat the above steps to process other areas;

[0085] S9. After processing is completed, close the corresponding device and unload the material.

[0086] Example

[0087] In this embodiment, the plate processing device is used to grind the plate surface, that is, to perform surface gradient nano-processing. The grinding head 3 can be precisely adjusted by the hydraulic lifting device 6, the first moving platform 7, and the infrared ranging sensor 4. The second servo motor 12 controls the operation of the ball screw 8. When the ball nut on the ball screw 8 moves, it drives the first moving platform 7 to move. The operation of the grinding head 3 is controlled by the first servo motor 1, and the working state of the grinding head 3 can be adjusted.

[0088] The cutter is a replaceable cutter, which is mounted on the milling head 3. The cutter can be replaced according to different processing requirements.

[0089] The rolling head 3 is connected to the first servo motor 1 through the first coupling 2 and its working state is controlled by the first servo motor 1. The first servo motor 1 is fixed on the workbench 5. The upper end of the hydraulic lifting device 6 is connected to the workbench 5, which can control the up and down movement of the workbench 5, and the lower end is connected to the first mobile platform 7, which can control the left and right movement of the workbench 5. The second servo motor 12 is connected to the end of the ball screw 8 through the second coupling 11, and is symmetrically connected to the ends of the ball screw 8 at both ends, and can control the left and right movement of the sliding nut 9. The sliding nut 9 is connected to the first mobile platform 7 through a bonding structure, which can control the left and right movement of the first mobile platform 7. The displacement sensor can work together with the servo motor to complete the precise movement control of the rolling head 3.

[0090] The function of the clamping device is to clamp the plate. The clamping device clamps the plate on both sides and can slide left and right. It can be adjusted left and right according to the shape of the plate. It can be moved left and right according to the processing position of the grinding head 3. The clamp can be adjusted to clamp the plate according to the thickness of the plate.

[0091] The processing anti-wrinkle device tightens around the local area of ​​the plate to prevent the force inside the processing area from spreading outside the processing area, causing local wrinkles in the plate or overall warping. The electromagnetic pressure head 19 is fixedly mounted on the linear sliding workbench 20 and connected to a first external power supply 21 for controlling its working state. The linear sliding workbench 20 can slide back and forth on the linear slide rail 18. The end of the linear slide rail 18 is assembled on the movable groove and can move up and down in the movable groove. Its ends are connected by a multi-stage pneumatic cylinder, and its up and down movement is controlled by the extension and retraction of the multi-stage cylinder. The electromagnetic pressure head 19 can be increased or decreased as needed. The electromagnetic pressure head 19 is a retractable structure and is insulated.

[0092] The plate detection device 22 can measure parameters such as the surface roughness of the plate according to process requirements.

[0093] The powered electrode 2307 of the electroplastic strengthening device 23 is connected to the movable sleeve through a spring. The movable sleeve is connected to the fixed sleeve through the telescopic frame 2303 and can be moved inside or out of the fixed sleeve. The magnetic suction heads 2306 are symmetrically distributed on both sides of the plate and can be adsorbed to each other to connect the electric auxiliary connector to the processed plate.

[0094] Specific working process:

[0095] First, select the required replaceable cutter head 303 and install it on the cutter head base 302. Prepare the sheet material and measure its approximate size.

[0096] Secondly, adjust the clamping device to fix the plate. According to the plane width of the plate to be processed, adjust the first multi-stage cylinder 14 to move the combined clamp 13 to a suitable clamping position and place the plate into the clamping groove. According to the thickness of the plate, adjust the second multi-stage cylinder 15 to clamp and fix the left and right ends of the plate.

[0097] The third multi-stage cylinder 17 is adjusted to move the linear sliding table 20 and start the plate detection device 22. According to the above measurement method, the thickness, roughness, plate quality, etc. of the plate can be measured as needed.

[0098] When measuring the thickness of the plate: the spiral part at the outer end of the second movable sleeve 2203 is marked with a size scale, the outer end is marked with a 0 scale, and the inner end is marked with a maximum scale D max The reading pointer is located at the outer port of the second fixed sleeve 2202 .

[0099] When starting to measure, move the linear sliding worktable 20 on both sides of the plate to the thickness area to be measured, and make the probe contacts on both sides symmetrically distributed with the plate. Screw the outer end of the second movable sleeve 2203 inward (until the vertex of the second contact probe sensor 2207 contacts the plate or contacts the vertex of the sensor at the other end). Start reading when the vertices of the sensors on both sides are in contact. At this time, the sensor output end shows a signal change (adjust the output end so that the signal is 0 when just in contact). The readings indicated by the pointers on the second fixed sleeves 2202 on both sides of the plate are D1 and D2 respectively. D1+D2=D is the thickness of the plate. (If D1+D2=0, it means the reading is 0 and there is no plate).

[0100] When measuring the surface roughness of the plate: When starting to measure, screw the outer end of the second movable sleeve 2203 inward, and when the vertex of the second contact probe sensor 2207 contacts the plate, continue to screw inward a distance x, (adjust the output end so that the output signal is 0), so that the second compression spring 2204 is in working state, and then rotate the locking nut 2208. Move the linear sliding table 20 to which the sensor belongs along a desired measurement direction, and the sensor output end will display the signal change. During the slow movement, the output signal fluctuates around 0, and the roughness of the plate can be judged based on the amplitude signal of the output probe contact. If the amplitude is large or deviates far from 0, it means that the roughness is large, otherwise the surface roughness of the plate is low.

[0101] When measuring the quality of the plate: the plate detection device 22 is fixed on the linear sliding workbench 20 and can move freely in the plate plane with it, so it can move to different positions to measure the thickness of the plate at different positions. It can detect the quality of the plate according to the thickness distribution and roughness of the measured plate and determine whether correction is needed.

[0102] At the beginning of the test, screw the outer end of the second movable sleeve 2203 inwards, and when the vertex of the second contact probe sensor 2207 contacts the plate, continue to screw inwards a distance y (adjust the output end so that the output signal is 0), so that the second compression spring 2204 is in working state, and then rotate the locking nut 2208. Perform the same operation as above on a pair of plate detection devices 22 symmetrical to both sides of the plate. Then move the linear sliding workbench 20 to which the two belong along a certain required measurement direction, and the sensor output end will display the signal change. If both ends show positive, it means that both sides of the plate are concave inwards; if both ends show negative, it means that there are convex defects on both sides of the plate; one positive and one negative means that one side of the plate is convex and the other side is concave. (Set the output signal to be negative when the probe is pressed).

[0103] Start the second servo motor 12 and the infrared distance sensor 4, adjust the first moving platform 7 to a suitable position, adjust the sliding base 24 and the hydraulic cylinder, and move the rolling head 3 to the vicinity of the plate to be processed. Start the hydraulic lifting device 6 and adjust the height of the rolling head 3 to the area to be processed. Determine the plate processing amount and the working position of the plate processing device according to the above method.

[0104] Start the third multi-stage cylinder 17 to move the linear slide 18 to a suitable position, move the linear slide 18 to move the linear slide table 20 to move the electromagnetic pressure head 19 to the area around the plate to be processed. Start the first external power supply 21 to make the electromagnetic pressure head 19 press the plate.

[0105] Pull the electric auxiliary connector out of the fixed sleeve, connect the powered electrode 2307 around the area to be processed, and make the electrodes on both sides of the plate face each other. Start the second external power supply 2301, and power the area to be processed of the plate. Start the first servo motor 1, the rolling head 3 starts to rotate, move the first moving platform 7 and the hydraulic lifting device 6, and move the plate processing device, i.e., the rolling head 3, to the working position for processing. During the processing, the processing effect can be judged and the process can be adjusted at any time according to the output signal of the first contact probe sensor 306.

[0106] After that, when the local area is processed, move the clamping device to process other areas of the plate. Repeat the above steps until the processing is completed. After the processing is completed, close the corresponding device and unload manually.

[0107] During the whole processing, the plate, the rolling head 3, the clamping device and the local edge pressing head have a high degree of freedom of spatial movement, and can process most areas of the large-sized plate while ensuring that its shape after forming is intact.

[0108] The embodiments described above are only descriptions of the preferred implementation modes of the present invention, and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary technicians in this field should all fall within the protection scope determined by the claims of the present invention.

Claims

1. A double-sided rolling device for preventing wrinkles on large-sized thin plates, characterized in that: It includes a clamping device, a plate processing device symmetrically arranged on both sides of the plate, an anti-wrinkle device for partially fixing the plate, an electroplastic strengthening device and a plate detection device; The clamping device comprises a combined clamper, a first multi-stage cylinder, a second multi-stage cylinder and a second moving platform, the lower end of the combined clamper is connected to the second moving platform, the first multi-stage cylinder is used to control the combined clamper to move forward and backward, and the second multi-stage cylinder is used to control the operation of the combined clamper, the combined clamper comprises a clamper slide, a clamper push plate, a clamper chuck and a second spring, the lower end of the clamper slide is fixedly connected to the second moving platform, the lower end of the clamper push plate is installed in the slide of the second moving platform and can slide forward and backward, the bottom of the clamper chuck is installed in the slide of the second moving platform and can slide left and right, and the clamper chuck is connected to the side wall of the clamper slide through the second spring, the second multi-stage cylinder controls the clamper push plate to move in the clamper slide, and the first multi-stage cylinder controls the second moving platform to move, thereby driving the combined clamper to move as a whole; The plate processing device comprises a first servo motor, a first coupling and a rolling head; The grinding head comprises a grinding head base, a cutter head base, a replaceable cutter head, a first lubricating sleeve, a first compression spring, a first contact probe sensor and a limit device; The rolling head is connected to the first servo motor through a first coupling, the rolling head base is connected to the first coupling, the cutter head base is connected to the rolling head base, the replaceable cutter head is connected to the cutter head base, the limit device is symmetrically distributed around the rolling head base and is used to fix the rotation position of the cutter head base, the outer end of the first contact probe sensor is sleeved with a first lubrication sleeve and extends into the replaceable cutter head, and the outer end of the first contact probe sensor is sleeved with a first compression spring, the first contact probe sensor and the first compression spring are combined and located at the center of the rolling head base and the cutter head base and can move within the rolling head base and the cutter head base within a limited range; The anti-wrinkle device includes a third multi-stage cylinder, a linear slide rail, an electromagnetic pressure head, a linear sliding workbench and a first external power supply; The electromagnetic pressure head is fixedly mounted on the linear sliding workbench and connected to a first external power supply. The linear sliding workbench can slide horizontally on the linear slide rail. The end of the linear slide rail is assembled in the slide groove and is controlled by a third multi-stage cylinder connected thereto to move up and down in the slide groove. The top and bottom of the slide groove are respectively provided with a third multi-stage cylinder. The electroplastic strengthening device comprises a second external power source, a first fixed sleeve, a telescopic frame, a first movable sleeve, a first spring, a magnetic suction head and a powered electrode; the electroplastic strengthening device is installed on the linear sliding workbench and can move with it; The powered electrode is connected to the first movable sleeve via a first spring, the first movable sleeve is connected to the first fixed sleeve via a telescopic frame, and can be moved inside or out of the first fixed sleeve, the magnetic suction head is fixedly connected to the outer end of the first movable sleeve, and when symmetrically distributed on both sides of the processed plate, can be mutually adsorbed to connect the powered electrode to the processed plate; The plate detection device comprises a wire, a second fixed sleeve, a second movable sleeve, a second compression spring, a guide sleeve, a second lubricating sleeve and a second contact probe sensor; The outer end of the second contact probe sensor is sleeved with a second lubricating sleeve and extends into the guide sleeve, the inner end of the second contact probe sensor is inserted into the second compression spring, the second contact probe sensor and the second compression spring are placed as a whole in the second movable sleeve, and the second contact probe sensor and the second compression spring are combined with each other and can move within a limited range in the second movable sleeve.

2. The large-size thin plate anti-wrinkle double-sided rolling device according to claim 1 is characterized in that: The guide sleeve is fixedly connected to the second movable sleeve, the inner end of the second movable sleeve is installed on the first side of the second fixed sleeve and can slide back and forth, the outer end of the second movable sleeve is arranged on the second side of the second fixed sleeve by threaded rotation, and the telescopic position can be adjusted by threaded rotation on the outer side of the second movable sleeve and fixed with the help of a locking device, the wire is internally connected to the second contact probe sensor and extends outside the device through the internal hole of the second movable sleeve.

3. The large-size thin plate anti-wrinkle double-sided rolling device according to claim 1 is characterized in that: The plate processing device also includes an infrared distance measuring sensor, a workbench, a hydraulic lifting device, a first moving platform, a ball screw, a sliding nut, a vibration-damping pad, a second coupling, and a second servo motor; The first servo motor is fixed on the workbench, and the upper end of the hydraulic lifting device is connected to the workbench, so as to control the up and down movement of the workbench. The lower end of the hydraulic lifting device is connected to the first mobile platform through a vibration-damping pad. The first mobile platform controls the left and right movement of the workbench. The second servo motor is connected to the end of the ball screw through a second coupling, and is symmetrically connected to the two ends of the ball screw, and can control the left and right movement of the sliding nut. The sliding nut is connected to the first mobile platform through a bonding structure, so as to further control the left and right movement of the first mobile platform. The infrared ranging sensor is fixed on the workbench and one is arranged on each side of the workbench. The infrared ranging sensor is used to measure the distance from the rolling head to the plate and can work with the second servo motor to complete the precise movement control of the rolling head.

4. The rolling method of the large-size thin plate anti-wrinkle double-sided rolling device according to claim 1 is characterized in that: It includes the following steps: S1. Adjust the clamping device to install the plate in the clamping device and fix the plate to be processed. When clamping begins, adjust the first multi-stage cylinder to determine the position of the combined clamp according to the size of the plate, and place the plate in the clamping groove. At this time, adjust the second multi-stage cylinder to push the clamping head to the middle through the wedge structure to clamp the plate. After clamping is completed, adjust the position of the second multi-stage cylinder to restore it, and the second spring resets the clamping head to its original position. S2. Adjust the plate detection device to select the measurement of plate thickness, plate roughness or plate quality; S3, adjusting the plate processing device to determine the processing amount and the working position of the plate processing device; S4. Adjust the anti-wrinkle device to fix the area around the plate to be processed; S5, adjusting the electroplastic strengthening device to fix the energized electrode around the area to be processed of the plate; S6. Start the electroplastic strengthening device and the plate processing device in sequence; S7, adjusting the plate processing device to a working position for processing; S8, after the local processing is completed, repeat the above steps to process other areas; S9. After processing is completed, close the corresponding device and unload the material.

5. The double-sided rolling method for preventing wrinkles on large-sized thin plates according to claim 4 is characterized in that: In step S2, when the thickness of the plate is detected, the spiral portion of the outer end of the second movable sleeve is marked with a size scale, the outer end is marked with a 0 scale, and the inner end is marked with a maximum scale D max , the reading pointer is located at the outer port of the second fixed sleeve; When starting to measure, move the linear sliding worktables on both sides of the plate to the thickness area to be measured, and make the probe contacts on both sides symmetrically distributed with the plate, and screw the outer end of the second movable sleeve inward until the vertex of the second contact probe sensor contacts the plate or the vertex of the second contact probe sensor at the other end. When the vertexes of the sensors on both sides are in contact, start reading. At this time, the output end of the second contact probe sensor shows a signal change. Adjust the output end so that the signal is 0 when just in contact. The readings pointed by the pointers on the second fixed sleeves on both sides of the plate are D1 and D2 respectively. D1+D2=D is the thickness of the plate. If D1+D2=0, it means the reading is 0, which means there is no plate. When measuring the surface roughness of the plate, at the beginning of the measurement, the outer end of the second movable sleeve is screwed inwards, and when the vertex of the second contact probe sensor contacts the plate, it is continued to be screwed inwards by a distance x, and the output end is adjusted so that the output signal is 0, so that the second compression spring is in a working state, and then the locking nut is rotated to move the linear sliding table where the second contact probe sensor is located along a desired measurement direction. At this time, the output end of the second contact probe sensor displays a signal change, and the output signal fluctuates around 0 during the slow movement. The roughness of the plate can be judged according to the amplitude signal of the output probe contact. If the amplitude is large or deviates far from 0, it means that the surface roughness of the plate is large, and vice versa, it means that the surface roughness of the plate is low; When testing the quality of the plate, the plate testing device is fixed on the linear sliding table and moves in the plane of the plate following the linear sliding table, so that the thickness of the plate at different positions can be measured, and the quality of the plate is tested according to the thickness distribution and roughness of the measured plate. Specifically: At the beginning of the detection, the outer end of the second movable sleeve is screwed inward. When the top point of the second contact probe sensor contacts the plate, continue to screw inward a distance y and adjust the output end so that the output signal is 0, so that the second compression spring is in a working state, and then rotate the locking nut, and perform the same operations as above on a pair of plate detection devices symmetrical to both sides of the plate in turn, and then move the linear sliding workbench connected to the plate detection device along a desired measurement direction. At this time, the output end of the second contact probe sensor displays a signal change. If the second contact probe signals at both ends are positive, it means that both sides of the plate are concave inward; if the second contact probe signals at both ends are negative, it means that both sides of the plate are convex outward; if the second contact probe signals at both ends are one positive and one negative, it means that one side of the plate is convex and the other side is concave.

6. The double-sided rolling method for preventing wrinkles on large-sized thin plates according to claim 4 is characterized in that: The method for determining the processing amount in step S3 is as follows: the infrared ranging sensor is used to measure the distance from the workbench to the plate, and the spiral part at the bottom of the cutter head is provided with a scale. The distance between the probe and the rolling head is set to a, and the distance a is measured by the infrared ranging sensor. The processing amount is α. Before processing, the workbench is moved to the position where the rolling head just contacts the plate. At this time, the sensor reading is -b. The workbench is moved inward by a distance b. At this time, the sensor reading is 0. The position of the first moving table at this time is recorded as the γ scale. The moving table is put back, and the cutter head base is rotated outward by the scale α to determine the processing amount. At this time, the first servo motor is started, and the first moving table is moved to the recorded γ scale. Then the rolling head can process the α processing amount.

7. The double-sided rolling method for preventing wrinkles on large-sized thin plates according to claim 4 is characterized in that: In step S4, before processing, adjust the third multi-stage cylinder and the linear sliding workbench to adjust the required electromagnetic pressure heads on both sides of the plate to the vicinity of the area to be processed. Before starting processing, start the first external power supply to fix the electromagnetic pressure heads around the area to be processed.

8. The double-sided rolling method for preventing wrinkles on large-sized thin plates according to claim 4 is characterized in that: In step S5, the first movable sleeve is pulled out of the first fixed sleeve according to the required placement position of the powered electrode, so that the magnetic suction heads on both sides of the plate are adsorbed on the corresponding positions of the plate, and the second external power supply is started to pass current into the area to be processed.

9. The double-sided rolling method for preventing wrinkles on large-sized thin plates according to claim 4 is characterized in that: In step S4, before processing, adjust the third multi-stage cylinder and the linear sliding workbench, and adjust the electromagnetic pressure heads required on both sides of the plate to the vicinity of the area to be processed. The surfaces of the electromagnetic pressure heads are insulated. Before processing, start the first external power supply to fix the electromagnetic pressure heads around the area to be processed.

10. The double-sided rolling method for preventing wrinkles on large-sized thin plates according to claim 9, characterized in that: In step S5, the first movable sleeve is pulled out of the first fixed sleeve according to the required placement position of the powered electrode, so that the magnetic suction heads on both sides of the plate are adsorbed at the relative positions of the plate. At this time, the second external power supply is started to pass current into the area to be processed.

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