Electroplasticity assisted roll forming flexible conductive roller apparatus and method

Abstract

The application provides a flexible conductive roller device and method for electric plasticity assisted rolling forming, and belongs to the technical field of electric plasticity assisted processing. The device is characterized by the following: the center roller is flexibly connected with the segmented conductive roller sleeve to form a transverse variable convexity flexible conductive roller through the use of a roller sleeve connecting rod, a detachable spring bin and a position adjusting spring, so that the device can effectively adapt to the transverse changes in the thickness and convexity of the strip sample, and the influence of the vibration and warping deformation of the strip sample during the rolling process on the basis of applying a certain pressing force to the strip sample to ensure the current effect; meanwhile, the position adjustment of the graphite conductive roller is realized through the cooperation between the side conductive mechanism mounting frame, the adjusting spring, the spring mounting seat, the adjusting sliding block and the limiting adjusting cap, so that the device can effectively adapt to the changes in the width of the strip sample and the influence of the deviation and horizontal inclination on the basis of closely combining with the strip sample, and finally the flexible self-adaptive support of the strip sample in the transverse and longitudinal directions is realized.

Description

Technical Field

[0001] This invention belongs to the field of electroplastic assisted processing technology, and particularly relates to a flexible conductive roller device and method for electroplastic assisted rolling forming. Background Technology

[0002] High-frequency pulsed current electroplastic rolling technology is a process that involves applying a high-frequency pulsed current to the strip end or rolls to improve the forming limit and forming quality of metals through the electroplastic effect, and to promote atomic diffusion at the composite interface. It is widely used in the rolling of precision strips, thick plates, and metal composite plates. In the field of layered metal composites, it has the potential to coordinate the deformation of dissimilar metals, promote atomic diffusion, refine grains, and improve the interfacial bonding strength.

[0003] Numerous patents have been filed for pulsed current rolling processes and devices. To coordinate the deformation capabilities of dissimilar metals, patent CN201911312358.7 proposes a process for preparing composite plates of difficult / easy-to-deform metals using pulsed current-assisted rolling. Patent CN202310922826.2 proposes a multi-energy field-assisted milling machine for ultra-thin strips using ultrasound and pulsed current to improve the milling machine's ability to control the residual stress, roughness, and other properties of the precision thin strip surface. To avoid current loss and failure caused by open circuits between the strip and the pulsed power supply, as well as conductivity of the mill stand during the strip rolling process, and to control the current flow position and density, patent CN202011023639.3 proposes a current-pushing bed design. This design uses insulating ceramics to prevent conductivity of the mill stand and applies current to the strip through longitudinally distributed rollers. Patent CN202011024663.9 proposes a discrete roll ring pulse current-assisted rolling method and device to improve the accuracy of pulse current application and control the current flow position and density. It controls the on / off state of the pulse power supply through a pressure sensor and controls the application position of the pulse current along the longitudinal direction of the strip deformation zone through circumferential insulation intervals, thereby achieving control of the current action. Patent CN202211084040.X proposes an axially discrete segmented conductive roll to overcome the uneven current distribution caused by the skin effect. The conductive roll is supported by intermediate rolls and other support roll assemblies to avoid poor contact between the strip and the conductive roll surface caused by bending and deformation due to pressure. The above patents have the following problems with the current application methods in the strip rolling process:

[0004] First, traditional strip materials are not ideal rectangles and have convexity and strip shape errors. Relying solely on the clamping force of the conductive roller can easily cause the conductive roller to bend and deform. In addition, due to the influence of vibration during the rolling process, traditional pulse current loading devices may experience poor strip contact and misalignment, leading to pulse current loading failure.

[0005] Second, traditional pulse current application devices do not take into account the effects of plate warping and tilting, assuming that the strip remains straight throughout the rolling process, and cannot compensate for the effects of longitudinal warping and horizontal tilting of dissimilar composite plates at the entrance of the deformation zone.

[0006] Third, the traditional pulse current conductive roller has a fixed distribution position relative to the strip, and the direction and position of the applied current are fixed. However, the electron wind effect of electroplasticity is affected by the current density and the current direction. Therefore, it is of great significance to realize the pulse current with variable application direction and position.

[0007] In summary, there is an urgent need for an electroplastic assisted rolling equipment and method that can overcome the above problems. Summary of the Invention

[0008] To address the shortcomings and deficiencies of existing technologies, a flexible conductive roller device and method for electro-plastic assisted rolling forming are provided. This solves the problems of poor contact, misalignment, inability to compensate for longitudinal warping and horizontal skew in traditional strip rolling equipment, as well as the inability to adjust the direction and position of the pulsed current electronic wind effect.

[0009] To achieve the purpose of this invention, a flexible conductive roller device for electroplastic assisted rolling is provided, comprising an assembly frame. Rigid reinforced auxiliary guide rails are symmetrically arranged at the top of the assembly frame, perpendicular to the direction of strip sample movement. A transverse width adjustment mechanism is provided on the rigid reinforced auxiliary guide rails. A lateral conductive mechanism is elastically connected to the inner side of the transverse width adjustment mechanism. A strip clamping mechanism is fixed to one side of the assembly frame. A second frame is provided between the transverse width adjustment mechanism and the strip clamping mechanism. On the side of the second frame near the transverse width adjustment mechanism, a connecting block and a hydraulic cylinder mounting boss are arranged sequentially from top to bottom. The connecting block is connected to the transverse variable convexity conductive mechanism. The plates are movably connected by a pivot pin. The hydraulic cylinder mounting boss is fixed to the fixed end of the connecting conductive roller clamping hydraulic cylinder. The movable end of the connecting conductive roller clamping hydraulic cylinder is connected to the hydraulic rod connecting boss in the transverse variable convexity conductive mechanism. The transverse variable convexity conductive mechanism is movably connected to the transverse variable convexity conductive roller. A strip lower end conductive mechanism is installed on the rigid reinforced auxiliary guide rail along the movement direction of the strip sample. A lower end conductive roller is installed between the lower end conductive roller mounting brackets in the strip lower end conductive mechanism. The lower end conductive roller and the transverse variable convexity conductive roller are arranged on the same vertical line to achieve clamping of the strip sample. A strip temperature monitoring instrument is also provided on the side of the second frame near the transverse width adjustment mechanism.

[0010] As a further improvement to the above solution, the lateral width adjustment mechanism includes a lateral guide rail mounting frame, which is installed in the middle of the assembly frame. A lateral guide rail motor is installed at one end of the lateral guide rail mounting frame, and a lateral guide rail is installed on the top of the lateral guide rail mounting frame. A lateral guide rail slider is installed above both ends of the lateral guide rail, and a lateral width adjustment frame is fixed above the lateral guide rail sliders. A lateral guide rail motor drive screw is installed in the middle of the lateral guide rail mounting frame, and the lateral guide rail motor drive screw is threadedly connected to the lateral width adjustment frame. One end of the lateral guide rail motor drive screw is connected to the power shaft of the lateral guide rail motor, thereby using the lateral guide rail motor drive screw to drive the lateral width adjustment frames to move closer or further apart. Rigidly reinforced auxiliary guide rail sliders are fixed on both sides of the bottom of the lateral width adjustment frame, and the bottom of the rigidly reinforced auxiliary guide rail sliders is inserted into the groove of the rigidly reinforced auxiliary guide rail.

[0011] As a further improvement to the above solution, the inner side of the transverse width adjustment frame is symmetrically provided with a side conductive mechanism mounting frame. The side conductive mechanism includes a spring mounting seat and a graphite conductive roller. The spring mounting seat is connected to the side conductive mechanism mounting frame by bolts. Ceramic roller mounting sleeves are fixed to the center of the top and bottom surfaces of the graphite conductive roller. A guide connecting frame is fitted on the outer wall of the ceramic roller mounting sleeve. Guide connecting frame fixing feet are symmetrically fixed on the outer wall of the guide connecting frame. The ends of the guide connecting frame fixing feet are connected to the adjustment slider by bolts. The mounting shaft in the spring mounting seat extends outward through the adjustment slider and is threadedly connected to the limit adjustment cap. An adjustment spring is fitted on the outer side of the mounting shaft in the spring mounting seat. An annular metal conductive rod is inserted into the ceramic roller mounting sleeve. The annular metal conductive rod is in close contact with the side conductive mechanism mounting frame.

[0012] As a further improvement to the above solution, the transverse variable convexity conductive mechanism includes symmetrically arranged transverse variable convexity conductive roller mounting frames. The fixed ends of the symmetrically arranged transverse variable convexity conductive roller mounting frames are connected to the connecting plate by bolts. The fixed ends of the symmetrically arranged transverse variable convexity conductive roller mounting frames are connected to the hydraulic rod connecting protrusions by shaft pins. A brush adjusting rotary shaft is provided in the cavity of the movable end of the transverse variable convexity conductive roller mounting frame. A wire connector is sleeved on the end of the brush adjusting rotary shaft. Brush clamping arms are symmetrically fixed on the outer wall of the wire connector by shaft pins. A brush preload spring is provided between the symmetrical brush clamping arms. A brush is fixed at the free end, and the brush is tightly fitted to the side wall of a replaceable metal brush sleeve. A transverse variable convexity conductive roller connecting pin is provided on the inner side of the replaceable metal brush sleeve. The transverse variable convexity conductive roller connecting pin is inserted into the center roller of the transverse variable convexity conductive roller. A ceramic bearing is also installed in the cavity of the movable end of the transverse variable convexity conductive roller mounting frame. The ceramic bearing is sleeved on the end of the center roller of the transverse variable convexity conductive roller. A polycarbonate plastic protective cover is installed on the outer side of the movable end of the transverse variable convexity conductive roller mounting frame. A frame heat dissipation hole is opened in the movable end of the transverse variable convexity conductive roller mounting frame. A friction debris discharge hole is opened in the polycarbonate plastic protective cover.

[0013] As a further improvement to the above solution, a segmented conductive roller sleeve is installed in the middle of the central roller of the transverse variable convexity conductive roller. Side fastening sleeves are provided on both sides of the segmented conductive roller sleeve, and fastening round nuts are provided on the outer side of the side fastening sleeves. The fastening round nuts and the central roller are threaded together to press the segmented conductive roller sleeve together. Multiple central roller connecting seats are provided on the outer surface of the middle part of the central roller. The inner wall of the segmented conductive roller sleeve is provided with a number of roller sleeve connecting seats corresponding to the number of central roller connecting seats. The roller sleeve connecting seats and the central roller connecting seats are respectively connected to one end of the roller sleeve connecting rod. The other ends of the two roller sleeve connecting rods are inserted into a detachable spring chamber. An adjustment spring is provided in the detachable spring chamber.

[0014] As a further improvement to the above solution, the strip pressing mechanism includes a third frame, with hydraulic cylinders arranged opposite each other on the inner walls of the third frame. The movable ends of the hydraulic cylinders are fixed to the bottom of the pressing frame. Ceramic rollers are evenly arranged on the top of the pressing frame, and strip thickness measuring instruments are installed at opposite positions on one side of the two pressing frames.

[0015] As a further improvement to the above solution, the lower conductive mechanism of the strip includes a longitudinal slide rail, with fixed brackets fixed at the bottom of both ends of the longitudinal slide rail. The fixed brackets are installed in the groove of the rigid reinforcement auxiliary guide rail. A longitudinal displacement motor is installed on one side of the longitudinal slide rail, and a longitudinal displacement slider is provided on the top of the longitudinal slide rail. A fork-type lifter is installed on the top of the longitudinal displacement slider. The rotating shaft of the fork-type lifter is connected to the power shaft of the longitudinal displacement motor. A lower conductive roller fixing frame is fixed on the top of the fork-type lifter. Both sides of the lower conductive roller fixing frame are fixedly connected to the lower conductive roller mounting frame through width adjustment shafts. The two lower conductive roller mounting frames are movably connected to the lower conductive roller through a pivot pin.

[0016] A method for using a flexible conductive roller device for electroplastic assisted rolling forming includes the following steps:

[0017] Step 1: Adjust the transverse width adjustment mechanism according to the width of the strip sample, and at the same time adjust the limit adjustment cap to make the side conductive mechanism in close contact with the strip sample by using the adjustment spring.

[0018] Step 2: Detect the thickness of the strip sample using a strip thickness measuring instrument. Based on the detected thickness of the strip sample, adjust the height of the conductive roller pressing hydraulic cylinder to drive the transverse variable crown conductive roller to press down, so that the transverse variable crown conductive roller applies a pressing force to the upper surface of the strip sample; at the same time, adjust the height of the longitudinal displacement motor to drive the lower conductive roller to rise, so that the lower conductive roller applies a pressing force to the lower surface of the strip sample.

[0019] Step 3: Apply pulsed current to the transverse variable convexity conductive roller, and at the same time monitor the temperature of the strip sample through the strip temperature monitoring instrument. When the strip sample warps, tilts, or has excessive local temperature difference, apply pulsed current at the position where the strip sample contacts the graphite conductive roller on the side conductive mechanism to supplement the heating of the strip sample, thus forming a closed-loop control for strip heating.

[0020] The beneficial effects of this invention are:

[0021] Compared with existing technologies, the present invention provides a flexible conductive roller device and method for electroplastic assisted rolling forming. By utilizing a roller sleeve connecting rod, a detachable spring chamber, and an adjusting spring to flexibly connect the central roller and the segmented conductive roller sleeve, a transversely variable convexity flexible conductive roller is formed. This allows it to effectively adapt to transverse changes in the thickness and convexity of the strip sample, as well as the effects of vibration and warping deformation of the strip sample during the rolling process, while applying a certain clamping force to the strip sample to ensure energization. Simultaneously, by utilizing the cooperation between the side conductive mechanism mounting frame, adjusting spring, spring mounting seat, adjusting slider, and limit adjusting cap, the position of the graphite conductive roller is adjusted. This allows it to effectively adapt to changes in the width of the strip sample and the effects of deviation and horizontal skew, while maintaining close contact with the strip sample. Furthermore, by applying current at different positions in the thickness and width directions of the strip by the transversely variable convexity flexible conductive roller and the side conductive mechanism, the directionality and positional application requirements of the pulse current electron wind effect are met. Ultimately, this achieves flexible adaptive support for the strip sample in the transverse and longitudinal directions, satisfying the requirements for pulse current directionality and large deflection variable stiffness contact conductivity. Attached Figure Description

[0022] Figure 1 This is a front-view three-dimensional structural schematic diagram of the present invention;

[0023] Figure 2 This is a rear-view three-dimensional structural diagram of the present invention;

[0024] Figure 3 for Figure 2 A magnified view of a portion of the image;

[0025] Figure 4 This is a three-dimensional schematic diagram of the lateral width adjustment mechanism in this invention;

[0026] Figure 5 for Figure 4 Enlarged view of part B in the image;

[0027] Figure 6 for Figure 4 Enlarged view of part C in the image;

[0028] Figure 7 This is a three-dimensional schematic diagram of the lateral conductive mechanism in this invention;

[0029] Figure 8 for Figure 7 Enlarged view of part D in the image;

[0030] Figure 9 This is a schematic diagram of the internal structure of the lateral conductive mechanism in this invention;

[0031] Figure 10This is a schematic diagram of the connection structure between the transverse variable convexity conductive mechanism and the transverse variable convexity conductive roller in this invention.

[0032] Figure 11 for Figure 10 Enlarged view of part E in the image;

[0033] Figure 12 This is a schematic diagram of the internal structure of the movable end in the transverse variable convexity conductive mechanism of the present invention;

[0034] Figure 13 This is a three-dimensional schematic diagram of the transversely variable convexity conductive roller in this invention;

[0035] Figure 14 for Figure 13 FF, a cross-sectional diagram;

[0036] Figure 15 for Figure 14 A magnified view of part G in the image;

[0037] Figure 16 This is a schematic diagram of the strip clamping mechanism in this invention;

[0038] Figure 17 This is a three-dimensional schematic diagram of the conductive mechanism at the lower end of the strip in this invention;

[0039] Figure 18 This is a three-dimensional schematic diagram of the forklift lifter in this invention.

[0040] Among them, 1-General assembly frame, 2-Transverse width adjustment mechanism, 3-Side conductive mechanism, 4-Strip sample, 5-Transverse variable convexity conductive mechanism, 6-Second frame, 7-Strip temperature monitor, 8-Connecting block, 9-Conductive roller clamping hydraulic cylinder, 10-Hydraulic cylinder mounting boss, 11-Transverse variable convexity conductive roller, 12-Strip clamping mechanism, 13-Rigidly reinforced auxiliary guide rail, 14-Strip lower end conductive mechanism, 15-Lower end conductive roller, 201-Transverse guide rail motor, 202-Transverse guide rail slider, 203-Transverse guide rail, 204-Transverse guide rail Mounting frame, 205- Lateral width adjustment frame, 206- Lateral guide rail motor drive screw, 207- Rigidity-enhanced auxiliary guide rail slider, 208- Lateral conductive mechanism mounting frame, 301- Spring mounting seat, 302- Adjusting spring, 303- Adjusting slider, 304- Limit adjustment cap, 305- Guide connecting frame, 306- Graphite conductive roller, 307- Guide connecting frame fixing foot, 308- Ceramic roller mounting sleeve, 309- Ring-shaped metal conductive rod, 501- Lateral variable convexity conductive roller mounting frame, 502- Connecting plate, 503- Hydraulic rod connection 504 - Frame heat dissipation hole; 505 - Friction debris discharge hole; 506 - Polycarbonate plastic protective cover; 507 - Wire connector; 508 - Brush adjustment rotary shaft; 509 - Brush clamping arm; 510 - Brush; 511 - Replaceable metal brush sleeve; 512 - Ceramic bearing; 513 - Lateral variable crown conductive roller connecting pin; 514 - Brush preload spring; 1101 - Center roller; 1102 - Fastening round nut; 1103 - Side fastening sleeve; 1104 - Segmented conductive roller sleeve; 1105 - Roller sleeve connecting seat; 1106 - Roller sleeve connecting rod 1107-Removable spring compartment, 1108-Center roller connecting seat, 1109-Adjusting spring, 1201-Third frame, 1202-Hydraulic cylinder, 1203-Pressure frame, 1204-Ceramic roller, 1205-Strip thickness measuring instrument, 1401-Fixed foot, 1402-Longitudinal slide rail, 1403-Longitudinal displacement slider, 1404-Fork lifter, 1405-Longitudinal displacement motor, 1406-Lower conductive roller fixing frame, 1407-Lower conductive roller mounting frame, 1408-Width adjustment shaft, 1409-Limit block. Detailed Implementation

[0041] The specific embodiments of the present invention will be further described in detail below with reference to the accompanying drawings:

[0042] according to Figure 1 , Figure 2 , Figure 3 , Figure 10 as well as Figure 17As shown, this invention provides a flexible conductive roller device for electroplastic assisted rolling forming, including a main assembly frame 1. Rigid reinforced auxiliary guide rails 13 are symmetrically arranged at the top of the main assembly frame 1, perpendicular to the direction of movement of the strip sample 4. A transverse width adjustment mechanism 2 is arranged on the rigid reinforced auxiliary guide rails 13. A lateral conductive mechanism 3 is elastically connected to the inner side of the transverse width adjustment mechanism 2. A strip pressing mechanism 12 is fixed to one side of the main assembly frame 1. A second frame 6 is arranged between the transverse width adjustment mechanism 2 and the strip pressing mechanism 12. A connecting block 8 and a hydraulic cylinder mounting boss 10 are arranged sequentially from top to bottom on the side of the second frame 6 near the transverse width adjustment mechanism 2. The connecting block 8 is connected to the connecting plate 502 in the transverse variable convexity conductive mechanism 5 via a shaft. The hydraulic cylinder mounting boss 10 is fixed to the fixed end of the connecting conductive roller clamping hydraulic cylinder 9. The movable end of the connecting conductive roller clamping hydraulic cylinder 9 is connected to the hydraulic rod connecting boss 503 in the transverse variable convexity conductive mechanism 5. The transverse variable convexity conductive mechanism 5 is movably connected to the transverse variable convexity conductive roller 11. The lower end conductive mechanism 14 of the strip sample 4 is installed on the rigid reinforcement auxiliary guide rail 13 along the movement direction of the strip sample 4. The lower end conductive roller 15 is installed between the lower end conductive roller mounting brackets 1407 in the lower end conductive mechanism 14. The lower end conductive roller 15 and the transverse variable convexity conductive roller 11 are arranged on the same vertical line to achieve clamping of the strip sample 4. The second frame 6 is also equipped with a strip temperature monitoring instrument 7 on the side near the transverse width adjustment mechanism 2.

[0043] according to Figures 4-5 As shown, the lateral width adjustment mechanism 2 includes a lateral guide rail mounting frame 204, which is installed in the middle of the main assembly frame 1. A lateral guide rail motor 201 is installed at one end of the lateral guide rail mounting frame 204, and a lateral guide rail 203 is installed on the top of the lateral guide rail mounting frame 204. A lateral guide rail slider 202 is installed above both ends of the lateral guide rail 203. A lateral width adjustment frame 205 is fixed above the lateral guide rail slider 202, and a lateral guide rail is installed in the middle of the lateral guide rail mounting frame 204. The motor drive screw 206 is threadedly connected to the transverse width adjustment frame 205. One end of the transverse width adjustment frame 206 is connected to the power shaft of the transverse width motor 201. Thus, the transverse width adjustment frame 205 is moved closer or further apart by the transverse width adjustment frame 206. Rigid reinforced auxiliary guide sliders 207 are fixed on both sides of the bottom of the transverse width adjustment frame 205. The bottom of the rigid reinforced auxiliary guide sliders 207 is inserted into the groove of the rigid reinforced auxiliary guide 13.

[0044] according to Figures 6-9As shown, the inner side of the horizontal width adjustment frame 205 is symmetrically equipped with side conductive mechanism mounting brackets 208. The side conductive mechanism 3 includes a spring mounting seat 301 and a graphite conductive roller 306. The spring mounting seat 301 is connected to the side conductive mechanism mounting bracket 208 by bolts. Ceramic roller mounting sleeves 308 are fixed to the center of the top and bottom surfaces of the graphite conductive roller 306. A guide connecting bracket 305 is fitted on the outer wall of the ceramic roller mounting sleeve 308. The outer wall of the guide connecting bracket 305 is fitted with a guide connecting bracket 305. The guide connecting bracket fixing foot 307 is fixed, and the end of the guide connecting bracket fixing foot 307 is connected to the adjusting slider 303 by bolts. The mounting shaft in the spring mounting seat 301 extends outward through the adjusting slider 303 and is threadedly connected to the limit adjusting cap 304. The adjusting spring 302 is sleeved on the outside of the mounting shaft in the spring mounting seat 301. An annular metal conductive rod 309 is inserted into the ceramic roller mounting sleeve 308. The annular metal conductive rod 309 is in close contact with the side conductive mechanism mounting bracket 208.

[0045] according to Figures 10-12 As shown, the transverse variable convexity conductive mechanism 5 includes symmetrically arranged transverse variable convexity conductive roller mounting frames 501. The fixed end of the symmetrically arranged transverse variable convexity conductive roller mounting frames 501 is connected to the connecting plate 502 by bolts. The fixed end of the symmetrically arranged transverse variable convexity conductive roller mounting frames 501 is connected to the hydraulic rod connecting protrusion 503 by a shaft pin. A brush adjusting rotary shaft 508 is arranged in the cavity of the movable end of the transverse variable convexity conductive roller mounting frame 501. A wire connector 507 is sleeved on the end of the brush adjusting rotary shaft 508. Brush clamping arms 509 are symmetrically fixed on the outer wall of the wire connector 507 by a shaft pin. A brush preload spring 514 is arranged between the symmetrical brush clamping arms 509. A brush 510 is fixed to the free end of the brush clamping arm 509. The brush 510 is tightly fitted to the side wall of the replaceable metal brush sleeve 511. A transverse variable convexity conductive roller connecting pin 513 is provided on the inner side of the replaceable metal brush sleeve 511. The transverse variable convexity conductive roller connecting pin 513 is inserted into the center roller 1101 of the transverse variable convexity conductive roller 11. A ceramic bearing 512 is also installed in the cavity of the movable end of the transverse variable convexity conductive roller mounting frame 501. The ceramic bearing 512 is sleeved on the end of the center roller 1101 of the transverse variable convexity conductive roller 11. A polycarbonate plastic protective cover 506 is installed on the outer side of the movable end of the transverse variable convexity conductive roller mounting frame 501. A frame heat dissipation hole 504 is opened in the movable end of the transverse variable convexity conductive roller mounting frame 501. A friction debris discharge hole 505 is opened in the polycarbonate plastic protective cover 506.

[0046] according to Figures 13-15As shown, a segmented conductive roller sleeve 1104 is installed in the middle of the center roller 1101 of the transverse variable convexity conductive roller 11. Side fastening sleeves 1103 are provided on both sides of the segmented conductive roller sleeve 1104. Fastening round nuts 1102 are provided on the outer side of the side fastening sleeves 1103. The fastening round nuts 1102 and the center roller 1101 are threaded together to press the segmented conductive roller sleeve 1104. Multiple center roller connecting seats 1108 are provided on the outer surface of the middle part of the center roller 1101. Roller sleeve connecting seats 1105 corresponding to the number of center roller connecting seats 1108 are provided on the inner wall of the segmented conductive roller sleeve 1104. The roller sleeve connecting seats 1105 and the center roller connecting seats 1108 are respectively connected to one end of the roller sleeve connecting rod 1106. The other end of the two roller sleeve connecting rods 1106 is inserted into the detachable spring chamber 1107. The detachable spring chamber 1107 is provided with an adjusting spring 1109.

[0047] according to Figure 16 As shown, the strip pressing mechanism 12 includes a third frame 1201. Hydraulic cylinders 1202 are arranged opposite each other on the inner wall of the third frame 1201. The movable end of the hydraulic cylinders 1202 is fixed to the bottom of the pressing frame 1203. Ceramic rollers 1204 are evenly arranged on the top of the pressing frame 1203. A strip thickness measuring instrument 1205 is installed at an opposite position on one side of the two pressing frames 1203.

[0048] according to Figures 17-18 As shown, the lower conductive mechanism 14 of the strip includes a longitudinal slide rail 1402. Fixed feet 1401 are fixed at the bottom of both ends of the longitudinal slide rail 1402. The fixed feet 1401 are installed in the groove of the rigid reinforcement auxiliary guide rail 13. A longitudinal displacement motor 1405 is installed on one side of the longitudinal slide rail 1402. A longitudinal displacement slider 1403 is provided on the top of the longitudinal slide rail 1402. A fork lifter 1404 is installed on the top of the longitudinal displacement slider 1403. The rotating shaft of the fork lifter 1404 is connected to the power shaft of the longitudinal displacement motor 1405. A lower conductive roller fixing frame 1406 is fixed on the top of the fork lifter 1404. Both sides of the lower conductive roller fixing frame 1406 are fixedly connected to the lower conductive roller mounting frame 1407 through a width adjustment shaft 1408. The two lower conductive roller mounting frames 1407 are movably connected to the lower conductive roller 15 through a shaft pin.

[0049] A method for using a flexible conductive roller device for electroplastic assisted rolling forming includes the following steps:

[0050] Step 1: Adjust the transverse width adjustment mechanism 2 according to the width of the strip sample 4, and at the same time adjust the limit adjustment cap 304 to make the side conductive mechanism 3 in close contact with the strip sample 4 by using the adjustment spring 302.

[0051] Step 2: The thickness of the strip sample 4 is detected by the strip thickness measuring instrument 1205. Based on the detected thickness of the strip sample 4, the height of the conductive roller pressing hydraulic cylinder 9 driving the transverse variable crown conductive roller 11 to press down is adjusted so that the transverse variable crown conductive roller 11 applies a pressing force to the upper surface of the strip sample 4. At the same time, the height of the longitudinal displacement motor 1405 driving the lower conductive roller 15 to rise is adjusted so that the lower conductive roller 15 applies a pressing force to the lower surface of the strip sample 4.

[0052] Step 3: Apply a pulsed current to the transverse variable convexity conductive roller 11, and at the same time monitor the temperature of the strip sample 4 through the strip temperature monitoring instrument 7. When the strip sample 4 warps, tilts, or has excessive local temperature difference, apply a pulsed current at the position where the strip sample 4 contacts the graphite conductive roller 306 on the side conductive mechanism 3 to supplement the heating of the strip sample 4, thus forming a closed-loop control for strip heating.

[0053] The above embodiments are not limited to the technical solutions of the embodiments themselves, and the embodiments can be combined with each other to form new embodiments. The above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit them. Any modifications or equivalent substitutions that do not depart from the spirit and scope of the present invention should be covered within the scope of the technical solutions of the present invention.

Claims

1. A flexible conductive roller device for electroplastic assisted rolling forming, characterized in that: The assembly includes a main assembly frame (1), on which rigid reinforced auxiliary guide rails (13) are symmetrically arranged at the top, perpendicular to the direction of movement of the strip sample (4). A transverse width adjustment mechanism (2) is provided on the rigid reinforced auxiliary guide rails (13). A lateral conductive mechanism (3) is elastically connected to the inner side of the transverse width adjustment mechanism (2). A strip pressing mechanism (12) is fixed on one side of the main assembly frame (1). A second frame (6) is provided between the transverse width adjustment mechanism (2) and the strip pressing mechanism (12). A connecting block (8) and a hydraulic cylinder mounting boss (10) are arranged sequentially from top to bottom on the side of the second frame (6) near the transverse width adjustment mechanism (2). The connecting block (8) and the transverse width adjustment mechanism (4) are connected to the strip pressing mechanism (4). The connecting plate (502) in the variable convexity conductive mechanism (5) is movably connected by a shaft pin. The hydraulic cylinder mounting boss (10) is fixed to the fixed end of the connecting conductive roller clamping hydraulic cylinder (9). The movable end of the connecting conductive roller clamping hydraulic cylinder (9) is connected to the hydraulic rod connecting boss (503) in the transverse variable convexity conductive mechanism (5). The transverse variable convexity conductive mechanism (5) is movably connected to the transverse variable convexity conductive roller (11). A strip lower end conductive mechanism (14) is installed on the rigid reinforced auxiliary guide rail (13) along the movement direction of the strip sample (4). A lower end conductive roller (15) is installed between the lower end conductive roller mounting frame (1407) in the strip lower end conductive mechanism (14). The lower end conductive roller (15) is connected to the lower end conductive roller mounting frame (1407) in the strip lower end conductive mechanism (14). The transverse variable convexity conductive rollers (11) are arranged on the same vertical line to clamp the strip sample (4). The second frame (6) is also equipped with a strip temperature monitor (7) on the side near the transverse width adjustment mechanism (2). The transverse variable convexity conductive mechanism (5) includes symmetrically arranged transverse variable convexity conductive roller mounting frames (501). The fixed end of the symmetrically arranged transverse variable convexity conductive roller mounting frames (501) is connected to the connecting plate (502) by bolts. The fixed end of the symmetrically arranged transverse variable convexity conductive roller mounting frames (501) is connected to the hydraulic rod connecting protrusion (503) by a shaft pin. A segmented conductive roller sleeve (1104) is installed in the middle of the center roller (1101) of the transverse variable convexity conductive roller (11). The segmented conductive roller sleeve (1104) is provided with side fastening sleeves (1103) on both sides. A fastening round nut (1102) is provided on the outer side of the side fastening sleeve (1103). The fastening round nut (1102) and the center roller (1101) are threaded together to press the segmented conductive roller sleeve (1104) together. Multiple center roller connecting seats (1108) are provided on the outer surface of the center roller (1101). A number of roller sleeve connecting seats (1105) corresponding to the center roller connecting seats (1108) are provided on the inner wall of the segmented conductive roller sleeve (1104). The roller sleeve connecting seats (1105) and the center roller connecting seats (1108) are respectively connected to one end of the roller sleeve connecting rod (1106).The other ends of both roller sleeve connecting rods (1106) are inserted into a removable spring chamber (1107), which contains an adjusting spring (1109).

2. The flexible conductive roller equipment for electroplastic assisted rolling forming according to claim 1, characterized in that: The lateral width adjustment mechanism (2) includes a lateral guide rail mounting frame (204), which is installed in the middle of the main assembly frame (1). A lateral guide rail motor (201) is installed at one end of the lateral guide rail mounting frame (204). A lateral guide rail (203) is installed on the top of the lateral guide rail mounting frame (204). A lateral guide rail slider (202) is installed above both ends of the lateral guide rail (203). A lateral width adjustment frame (205) is fixed above the lateral guide rail slider (202). A lateral width adjustment mechanism (205) is installed in the middle of the lateral guide rail mounting frame (204). A guide rail motor drive screw (206) is provided, and the guide rail motor drive screw (206) is threadedly connected to the transverse width adjustment frame (205). One end of the guide rail motor drive screw (206) is connected to the power shaft of the guide rail motor (201), so that the guide rail motor drive screw (206) drives the transverse width adjustment frame (205) to move closer or further apart. Rigid reinforced auxiliary guide rail sliders (207) are fixed on both sides of the bottom of the transverse width adjustment frame (205), and the bottom of the rigid reinforced auxiliary guide rail sliders (207) is inserted into the groove of the rigid reinforced auxiliary guide rail (13).

3. The flexible conductive roller device for electroplastic assisted rolling forming according to claim 2, characterized in that: The inner side of the horizontal width adjustment frame (205) is symmetrically provided with side conductive mechanism mounting brackets (208). The side conductive mechanism (3) includes a spring mounting seat (301) and a graphite conductive roller (306). The spring mounting seat (301) is connected to the side conductive mechanism mounting bracket (208) by bolts. Ceramic roller mounting sleeves (308) are fixed at the center of the top and bottom surfaces of the graphite conductive roller (306). A guide connecting bracket (305) is sleeved on the outer wall of the ceramic roller mounting sleeve (308). The outer wall of the guide connecting bracket (305) is symmetrically provided with... A guide connecting bracket fixing foot (307) is fixed, and the end of the guide connecting bracket fixing foot (307) is connected to the adjusting slider (303) by bolts. The mounting shaft in the spring mounting seat (301) extends outward through the adjusting slider (303) and is threadedly connected to the limit adjusting cap (304). An adjusting spring (302) is sleeved on the outside of the mounting shaft in the spring mounting seat (301). An annular metal conductive rod (309) is inserted into the ceramic roller mounting sleeve (308). The annular metal conductive rod (309) is in close contact with the side conductive mechanism mounting bracket (208).

4. The flexible conductive roller equipment for electroplastic assisted rolling forming according to claim 3, characterized in that: A brush adjustment rotary shaft (508) is provided in the cavity of the movable end of the transverse variable convexity conductive roller mounting bracket (501). A wire connector (507) is sleeved on the end of the brush adjustment rotary shaft (508). Brush clamping arms (509) are symmetrically fixed on the outer wall of the wire connector (507) by a shaft pin. A brush preload spring (514) is provided between the symmetrical brush clamping arms (509). A brush (510) is fixed on the free end of the brush clamping arm (509). The brush (510) is tightly fitted with the side wall of the replaceable metal brush sleeve (511). A transverse variable convexity conductive roller connecting pin (513) is provided on the inner side of the replaceable metal brush sleeve (511). The transverse convexity conductive roller connecting pin (513) is inserted into the center roller (1101) of the transverse convexity conductive roller (11). A ceramic bearing (512) is also installed in the cavity of the movable end of the transverse convexity conductive roller mounting frame (501). The ceramic bearing (512) is sleeved on the end of the center roller (1101) of the transverse convexity conductive roller (11). A polycarbonate plastic protective cover (506) is installed on the outside of the movable end of the transverse convexity conductive roller mounting frame (501). A frame heat dissipation hole (504) is opened in the movable end of the transverse convexity conductive roller mounting frame (501). A friction debris discharge hole (505) is opened in the polycarbonate plastic protective cover (506).

5. The flexible conductive roller equipment for electroplastic assisted rolling forming according to claim 4, characterized in that: The strip pressing mechanism (12) includes a third frame (1201), and hydraulic cylinders (1202) are arranged opposite to each other on the inner wall of the third frame (1201). The movable end of the hydraulic cylinder (1202) is fixed to the bottom of the pressing frame (1203). Ceramic rollers (1204) are evenly arranged on the top of the pressing frame (1203). A strip thickness measuring instrument (1205) is installed on one side opposite to the two pressing frames (1203).

6. The flexible conductive roller device for electroplastic assisted rolling forming according to claim 5, characterized in that: The lower end conductive mechanism (14) of the strip includes a longitudinal slide rail (1402), and fixed brackets (1401) are fixed at the bottom of both ends of the longitudinal slide rail (1402). The fixed brackets (1401) are installed in the groove of the rigid reinforcement auxiliary guide rail (13). A longitudinal displacement motor (1405) is installed on one side of the longitudinal slide rail (1402), and a longitudinal displacement slider (1403) is provided on the top of the longitudinal slide rail (1402). A longitudinal displacement slider (1403) is installed on the top of the longitudinal displacement slider (1403). A forklift (1404) is provided, the shaft of which is connected to the power shaft of a longitudinal displacement motor (1405). A lower conductive roller mounting bracket (1406) is fixed on the top of the forklift (1404). Both sides of the lower conductive roller mounting bracket (1406) are fixedly connected to the lower conductive roller mounting bracket (1407) via width adjustment shafts (1408). The two lower conductive roller mounting brackets (1407) are movably connected to the lower conductive roller (15) via a shaft pin.

7. A method for a flexible conductive roller device for electroplastic assisted rolling forming according to claim 6, characterized in that: Includes the following steps: Step 1: Adjust the transverse width adjustment mechanism (2) according to the width of the strip sample (4), and at the same time adjust the limit adjustment cap (304) to make the side conductive mechanism (3) and the strip sample (4) in close contact using the adjustment spring (302). Step 2: The thickness of the strip sample (4) is detected by the strip thickness measuring instrument (1205). Based on the detected thickness of the strip sample (4), the height of the transverse variable convexity conductive roller (11) driven by the hydraulic cylinder (9) is adjusted so that the transverse variable convexity conductive roller (11) applies a pressing force to the upper surface of the strip sample (4). At the same time, the height of the lower conductive roller (15) driven by the longitudinal displacement motor (1405) is adjusted so that the lower conductive roller (15) applies a pressing force to the lower surface of the strip sample (4). Step 3: Apply pulse current to the transverse variable convexity conductive roller (11), and at the same time monitor the temperature of the strip sample (4) through the strip temperature monitoring instrument (7). When the strip sample (4) warps, tilts and has excessive local temperature difference, apply pulse current at the position where the strip sample (4) contacts the graphite conductive roller (306) on the side conductive mechanism (3) to supplement the heating of the strip sample (4) and form a closed-loop control for strip heating.

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