CN111545612A - Current-assisted large-area array microstructure asynchronous roll forming equipment - Google Patents

Abstract

The invention provides a current-assisted large-area array microstructure asynchronous roll forming device which comprises a rack platform, a roll mechanism, an adjusting mechanism, a driving device and a power-up device. The driving device is installed on the rack platform assembly, the roller mechanism is fixedly installed on the rack platform assembly, the adjusting mechanism is connected with the roller mechanism, the roller mechanism is connected with the power-on device, and the sensing device is installed on the roller mechanism. The invention realizes the integration of current-assisted forming and rolling process, is suitable for asynchronous rolling forming of current-assisted large-area array microstructure, can realize asynchronous control of the rotating speed of the upper and lower rollers and accurate adjustment of the position, integrates the functions of roller pressure/current/temperature real-time detection and the like, and solves the defects of low dimensional precision, low processing efficiency, filling consistency of the microstructure, poor surface finish quality and the like of the microstructure, thereby realizing the integrated manufacturing of the accuracy, the high efficiency and the forming performance of the array microstructure.

Description

A current-assisted large-area array microstructure asynchronous roll forming equipment

technical field

The invention belongs to the technical field of rolling, and relates to a microstructure array surface asynchronous roll forming device, in particular to a current-assisted large-area array microstructure asynchronous roll forming device.

Background technique

Large-area array microstructures play an important role in aviation, aerospace, electronics, medical and agricultural fields. At present, the array microstructures are mainly processed by chemical etching, milling, laser additive manufacturing and mechanical imprinting, etc. These methods have the problems of low manufacturing efficiency, difficulty in guaranteeing the size of micro-features, difficulty in realizing large-area array fabrication, and high cost. Among them, due to the high yield strength of metal materials at room temperature, the increase of frictional resistance at the micro-mesoscopic scale, and the increase of mold wear, etc., the filling consistency of the array microstructures manufactured by mechanical imprinting mainly by the traditional cold-pressing forming method is inconsistent. The surface finish is poor, the residual stress of the components is large, and the microstructure distribution is uneven. Although the problems in cold stamping can be avoided by heating, the heating and holding equipment increase energy consumption and process complexity.

In addition, the roll forming equipment is also mainly cold-pressed, mainly for the manufacture of low-strength material array structures such as aluminum alloys and copper alloys. When forming high-strength alloy array microstructures, there are also the filling consistency and surface of the fabricated array microstructures. The above problems are poor finish, large residual stress of components, and uneven distribution of microstructures. Therefore, it is desirable to develop a dedicated device to solve the fabrication challenges of high-strength alloy array microstructures.

The excitation effect of pulse current can change the microscopic physical nature and macroscopic deformation characteristics of the material, reduce the deformation resistance of the material, improve the atomic activity inside the material, improve the processing performance and plastic deformation ability of the material, and has the advantages of high efficiency, low cost, simple process and forming. It has the advantages of good component performance, high precision, and good filling consistency, and is a green manufacturing method.

SUMMARY OF THE INVENTION

To this end, the present invention provides a current-assisted large-area array microstructure asynchronous roll forming device that realizes the integration of current-assisted forming and rolling process. The equipment can realize asynchronous control of the upper and lower roll speeds and precise adjustment of the position, and integrate the functions of real-time detection of roll pressure/current/temperature, which solves the problem of low microstructure dimensional accuracy, low processing efficiency, and poor microstructure filling consistency and surface finish. and other defects, so as to achieve precise, efficient and formative integrated fabrication of array microstructures.

The invention provides a current-assisted large-area array microstructure asynchronous roll forming equipment, comprising a frame platform, a roll mechanism, an adjustment mechanism, a drive device and a power-on device;

The roll mechanism includes a driving roll, a driven roll, a driving shaft, a driven shaft and a support assembly, the surface of the driving roll is provided with an array microstructure and is fixedly installed on the driving shaft, and the driving shaft passes through the support The assembly is placed on the top of the frame platform; the driven roller is fixedly installed on the driven shaft, and the driven shaft is placed on the top of the frame platform through the support assembly; the The driving roller and the driven roller are arranged in parallel with an adjustable gap therebetween;

The adjusting mechanism is connected with the driving shaft, so as to adjust the size of the gap between the driving roller and the driven roller;

The driving device includes a driving roller driving component for driving the driving shaft to drive the driving roller to rotate, and a driven roller driving component for driving the driven shaft to drive the driven roller to rotate. The axis is opposite to the rotation direction of the driven pump;

The power-on assembly includes a pulse power source, a positive electrode power-on assembly and a negative electrode power-on assembly. One end of the positive electrode power-on assembly is connected to the driving shaft, and the other end is connected to the pulse power supply; one end of the negative electrode power-on assembly It is connected with the driven shaft, and the other end is connected with the pulse power supply.

In some embodiments, the adjustment mechanism may include a worm gear, a worm, an eccentric, and a drive motor, the output end of the drive motor is connected to the worm, the worm meshes with the worm, and the worm is connected to the eccentric The outer edge of the wheel is fixedly connected, the central flange of the eccentric wheel is rotatably connected with the support assembly, the support assembly is provided with a through arc guide groove, and the driving shaft extends through the arc guide groove Connected with the eccentric hole of the eccentric wheel, the driving shaft is rotatably connected with the groove surface of the arc-shaped guide groove and can move along the arc-shaped guide groove; the worm gear drives the eccentric wheel in a direction perpendicular to the The driving roller rotates around the center flange in the plane, and the arc guide groove, the turbine and the eccentric wheel are concentric.

In some embodiments, the driving mechanism of the driving roller may include a first motor, a first gear, a second gear and a first transmission shaft, the first motor is fixedly installed on the frame platform, the first The motor output end is connected with the first gear through the first transmission shaft, the second gear is connected with the driving shaft and meshes with the first gear, the first gear (16) and the first gear The meshing depth and angle of the second gear (17) are equal to the adjustable range of the gap between the driving roller and the driven roller;

The driven roller driving mechanism may include a second motor, a third gear, a fourth gear and a second transmission shaft, the second motor is fixedly installed on the frame platform, and the output end of the second motor passes through the The second transmission shaft is connected with the third gear, and the fourth gear is connected with the driven shaft and meshes with the third gear.

In some embodiments, the positive power-on assembly includes a positive power-on mold and a positive cable, one end of the positive power-on mold is connected to the drive shaft, one end of the positive cable is connected to the pulse power supply, and the other end is connected to the pulse power supply. connected with the other end of the positive power-on mold; the negative power-on assembly includes a negative power-on mold and a negative cable, one end of the negative power-on mold is connected to the driven shaft, and one end of the negative cable is connected to the The other end of the pulse power supply is connected with the other end of the negative electrode electrification mold.

In some embodiments, the sensing device may include an encoder, two displacement sensors, a force sensor, a temperature sensor and an automatic console, and the encoder is arranged on the side of the eccentric wheel for detecting the eccentricity The deflection angle of the wheel is used to control the rotation of the eccentric wheel according to the detected deflection angle; two displacement sensors are respectively arranged on the driving shaft and the driven shaft to check the driving roller and the driven shaft. The distance that the driven rollers move from mutual contact to obtain the thickness of the object to be rolled; the force sensor and the temperature sensor are arranged on the driven roller to measure the roller pressure and temperature; through the coding The data collected by the controller, two displacement sensors, the force sensor, and the temperature sensor are presented on the display screen of the automatic console.

In some embodiments, the rack platform may include a rack and a platform fixedly mounted on the rack, the rack includes three small rack modules of the same structure welded by profiles, and the platform is made of steel plates cut directly.

In some embodiments, the support assembly includes a first fixing plate, a second fixing plate and a third fixing plate that are vertically mounted on the rack platform, and the two ends of the driving shaft are respectively rotatably connected to and parallel to each other. extending through the first fixing plate and the second fixing plate, the two ends of the driven shaft are respectively rotatably connected to and extending through the first fixing plate and the third fixing plate;

The first fixing plate and the second fixing plate are provided with three supporting columns at the upper ends, and the two ends of each supporting column are respectively fixedly connected to the first fixing plate and the second fixing plate.

In some embodiments, the first fixing plate, the second fixing plate and the third fixing plate can all be made of insulating high temperature resistant bakelite.

In some embodiments, the driving shaft and the driven shaft are respectively rotatably connected with the support assembly through bearings, the driving shaft and the driven shaft are respectively connected with the inner ring of the bearing, and the bearing The outer ring is connected with the support assembly.

In some embodiments, the current applied through the power-on assembly is introduced from the drive shaft (6) and drawn out from the driven shaft (7), the drive shaft (6) and the bearing (5) An insulating seal may be provided between the inner rings of the ), and an insulating seal may be provided between the driven shaft (7) and the inner ring of the bearing (5) to avoid the introduction of current into the rack platform .

Beneficial effects of the present invention:

1) The present invention introduces the current field into the asynchronous roll forming process of the array microstructure, uses the electroplasticity and thermal effect mechanism to reduce the deformation resistance of the material, improves the microstructure and properties, and is suitable for the high-efficiency and precision of the large-area array microstructure of the hard-to-deform alloy. Manufactured with shape and form.

2) The present invention adopts a horizontal design, which can realize asynchronous control of the rotation speed of the upper and lower rollers and precise adjustment of the lowering position, and has the characteristics of integrating roll forming and straightening;

3) The present invention can replace the driving roller, process different microstructure sizes, is simple to operate, and adapts to the manufacturing requirements of microstructures of different sizes;

4) The present invention can monitor the changes of roller pressure, deformation temperature and excitation current in real time, dynamically adjust process parameters according to the state of the formed parts, and realize the precise manufacture of large-area array microstructures.

Description of drawings

1 is a schematic diagram of the overall structure of a current-assisted large-area array microstructure asynchronous roll forming device according to an embodiment of the present invention;

2 is a schematic diagram of a rack platform assembly according to an embodiment of the present invention;

3 is a schematic diagram of a roller mechanism according to an embodiment of the present invention;

4 is a schematic diagram of an adjustment mechanism according to an embodiment of the present invention;

5 is a schematic diagram of a driving device according to an embodiment of the present invention;

FIG. 6 is a schematic diagram of a power-up device according to an embodiment of the present invention.

In the attached picture:

1-frame; 2-platform; 3-drive roller; 4-drive roller; 5-bearing; 6-drive shaft; 7-drive shaft; 8-support assembly; 8-1-first fixing plate; 8 -2-Second fixed plate; 8-3-Third fixed plate; 9-Angle frame; 10-Worm gear; 11-Worm; 12-Eccentric wheel; 13-Drive motor; 14-Bearing seat; 15-First motor ; 16-first gear; 17-second gear; 18-motor base; 18'-second motor base; 19-first drive shaft; 19'-second drive shaft; 20-second motor; 21-th Three gears; 22- fourth gear; 23- pulse power supply; 24- positive power-on mold; 25- positive cable; 26- negative power-on mold; 27- negative cable; 28- automatic console.

Detailed ways

In order to understand the above objects, features and advantages of the present invention more clearly, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that the embodiments of the present invention and the features in the embodiments may be combined with each other under the condition of no conflict.

Many specific details are set forth in the following description to facilitate a full understanding of the present invention. However, the present invention can also be implemented in other ways different from those described herein. Therefore, the protection scope of the present invention is not limited by the specific details disclosed below. Example limitations.

As shown in FIG. 1 , the current-assisted large-area array microstructure asynchronous roll forming equipment of the present invention includes a frame platform assembly, a roll mechanism, an adjustment mechanism, a driving device, a power-on device and a sensing device. The driving device is installed on the frame platform assembly, the roll mechanism is fixedly installed with the frame platform assembly, the adjustment mechanism is connected with the roll mechanism, the roll mechanism is connected with the power-on device, and the sensing device is installed on the roll mechanism.

As shown in Fig. 2, the rack platform assembly includes a rack 1 and a platform 2 fixedly mounted on the rack 1, wherein, for the convenience of disassembly, the rack 1 includes three small rack modules with the same structure welded by profiles. 2 is directly cut from the steel plate, and the frame 1 and the platform 2 are connected by bolts.

As shown in Figures 1 and 3, the roll mechanism includes a driving roll 3, a driven roll 4, a bearing 5, a driving shaft 6, a driven shaft 7, a first fixed plate 8-1, a second fixed plate 8-2, a third fixed plate 8-2, and a third fixed plate 8-1. The fixed plate 8-3 and the corner frame 9, wherein the three fixed plates are vertically installed on the platform 2 in the form of board-to-board through the corner frame 9, and the first fixed plate 8-1 and the second fixed plate 8-2 The plane is provided with a through arc guide groove to cooperate with the adjustment mechanism to realize the adjustment of the gap between the driving roller 3 and the driven roller 4, which will be described in detail later. As shown in the figure, the surface of the driving roller 3 is provided with a desired array of microstructures and is connected to the driving shaft 6 through interference fit. The fixing plate 8-2 is connected, the inner ring of the bearing 5 is connected with the driving shaft 6 by interference fit, and the outer ring of the bearing 5 is fixed on the first fixing plate 8-1 and the second fixing plate 8-2 by clearance fit. The driven roller 4 is connected to the driven shaft 7 through an interference fit, and the two ends of the driven shaft 7 are respectively connected to the first fixed plate 8-1 and the third fixed plate 8-3 through the bearing 5. The inner ring of the bearing 5 Connected with the driven shaft 7 by interference fit, the outer ring of the bearing 5 is fixed on the first fixing plate 8-1 and the third fixing plate 8-3 through clearance fit. The driving roller 3 and the driven roller 4 are placed on the top of the platform 2 and parallel to each other, and an adjustable gap is set between them. Rolling.

It should be understood that, if necessary, the driving shaft 6 and the driven shaft 7 can be connected to the same two fixed plates at the same time, or they can be connected to two different fixed plates respectively.

In particular, an insulating seal is arranged between the driving shaft 6 and the inner ring of the bearing 5, and an insulating seal is arranged between the driven shaft 7 and the inner ring of the bearing 5, so as to ensure that the current applied by the power-on assembly only passes through the driving Shaft 6, driving roller 3, driven shaft 7, driven roller 4 will not affect components such as gears, motors, frame 1 and platform 2, preventing safety problems.

Preferably, the upper ends of the first fixing plate 8-1 and the second fixing plate 8-2 can be reinforced by three support columns and are easy to install. Preferably, the first fixing plate 8-1, the second fixing plate 8-2 and the third fixing plate 8-3 are all processed from insulating high temperature bakelite, so as to be suitable for roll forming with different current densities.

The adjusting mechanism is used to adjust the gap between the driving roller 3 and the driven roller 4, so that the present invention can be applied to the processing and manufacturing of plates with different depths and different thicknesses. In order to ensure the parallel movement of the driving roller 3, an adjustment mechanism is provided on each side of the driving shaft 6, and the adjustment mechanisms on both sides are the same. To avoid repetition, only one side will be described below. As shown in FIG. 1 (only one side of the adjustment mechanism is shown), the adjustment mechanism includes a worm gear 10, a worm 11, an eccentric wheel 12, a drive motor 13 and a bearing seat 14, wherein the central flange of the eccentric wheel 12 is connected to the drive through the bearing 5. The drive shaft of the roller drive assembly is fixed with clearance fit, the drive motor 13 is fixed with the first fixing plate 8-1 by screws, the bearing seat 14 is connected with the first fixing plate 8-1 by screws, and the worm gear 10 is fixedly engaged with the outer periphery of the eccentric wheel 12. Connection, the worm wheel 10 and the worm 11 are meshed and arranged, the worm 11 and the bearing seat 14 are fixed by the bearing 5 with clearance fit, the drive motor 13 and the worm 11 are connected with the clearance fit through the shaft hole, and the driving shaft 6 passes through the first fixing plate 8-1. The arc guide groove is connected with the eccentric hole of the eccentric wheel 12 through the bearing 5 through clearance fit. During the gap adjustment process, the drive motor 13 drives the worm 11 to rotate in a direction parallel to the platform 2 and perpendicular to the drive shaft 6, so as to drive the worm wheel 10 to rotate in a plane perpendicular to the drive roller 3 and the drive shaft 6, and the worm wheel 10 drives the eccentric The wheel 12 rotates around the rotation center (that is, the center flange of the eccentric wheel 12) in this plane, and then drives the driving shaft 6 to slide along the arc-shaped guide groove to adjust the relative distance between the driving shaft 6 and the driven shaft 7, thereby Adjust the gap between the driving roller 3 and the driven roller 4.

In particular, the arc guide groove, the turbine wheel 10 and the eccentric wheel 12 are concentric.

In addition, the present invention adopts the driving roller drive assembly to drive the drive shaft 6 to drive the drive roller 3 to rotate, and the driven roller drive assembly to drive the driven shaft 7 to drive the driven roller 4 to rotate, so that the two rollers can be driven by two servos. The motor is driven separately, so as to realize asynchronous rolling, integrated shape and straightening. As shown in FIG. 5 , the driving assembly of the driving roller includes a first motor 15 , a first gear 16 , a second gear 17 , a first motor base 18 and a first transmission shaft 19 . The first motor seat 18 and the platform 2 are fixed by screws, the first motor 15 and the first motor seat 18 are positioned and fixed by screws through the shaft hole clearance fit, the first transmission shaft 19 and the first motor seat 18 are connected by bolts, and the first motor seat 18 is connected by bolts. A transmission shaft 19 is connected with the first fixed plate 8 through the bearing 5 , the first gear 16 is connected with the first transmission shaft 19 by clearance fit, the first gear 16 is meshed with the second gear 17 , and the driving shaft 6 is matched with the second gear 17 A seal is connected and disposed in the middle, so that the second gear 17 can move along the arc guide groove on the fixed plate along with the driving shaft 6 . In particular, the meshing depth and angle of the first gear 16 and the second gear 17 are equal to the size of the adjustable range of the gap between the driving roller 3 and the driven roller 4 . During the driving process, the first gear 16 takes the first transmission shaft 19 as the rotating shaft, the first motor 15 drives the first gear 16 to rotate, the first gear 16 drives the second gear 17 to rotate, and the second gear 17 drives the driving shaft 6 to rotate .

The driven roller drive assembly includes a second motor 20, a third gear 21, a fourth gear 22, a second motor base 18' and a second transmission shaft 19'. Similarly, the second motor base 18' and the platform 2 are fixed by screws. The second motor 20 and the second motor base 18' are positioned and screwed through the shaft hole clearance fit, the second transmission shaft 19' and the second motor base 18' are connected by bolts, and the third gear 21 and the second transmission shaft 19' have clearance The third gear 21 is meshed with the fourth gear 22 , and the driven shaft 7 is matched with the fourth gear 22 . During the driving process, the third gear 21 takes the second transmission shaft 19' as the rotating shaft; the second motor 20 drives the third gear 21 to rotate, the third gear 21 drives the fourth gear 22 to rotate, and the fourth gear 22 drives the driven shaft 7 Turn. In particular, the rotation direction of the driving shaft 6 and the driven pump 7 is opposite.

The power-on assembly of the present invention is used to apply an electric field in the rolling deformation area of the metal part. In this embodiment, a set of power-on assemblies is provided at each end of the rolling mechanism. To avoid repetition, only one side is described below. As shown in FIG. 6 , the power-on assembly includes a pulse power supply 23, a positive power-on mold 24, a positive electrode cable 25, a negative electrode power-on mold 26, and a negative electrode cable 27. The positive power-on mold 24 is connected to the driving shaft 6 through threads, and the positive electrode power-on mold 24 is One end of the cable 25 is connected to the pulse power supply 23, and the other end is fixedly connected to the positive electrode power-on mold 24 through bolts and nuts; the negative electrode power-on assembly includes, the negative electrode power-on mold 26 is connected with the driven shaft 7 through threads, and one end of the negative electrode cable 27 is connected The pulse power supply 23, the current flows through the positive cable 20, the positive power mold 19, the driving shaft 6, the driving roller 3, the metal workpiece, the driven roller 4, the driven shaft 7, the negative power mold 21 and the negative cable 22.

Finally, the sensing device of the present invention includes an encoder, a displacement sensor, a force sensor, a temperature sensor, and an autonomous console 28, as shown in FIG. 1 . The encoder is arranged on the side of the eccentric wheel 12 to detect the deflection angle of the eccentric wheel 12 to control the rotation of the eccentric wheel 12 according to the deflection angle; the displacement sensors are respectively arranged on the driving shaft 6 and the driven shaft 7 for checking The distance moved by the driving roller 3 and the driven roller 4 starting from mutual contact, so as to obtain the thickness of the rolled metal workpiece; the force sensor and the temperature sensor are arranged on the driven roller 4 to measure the roller pressure and temperature; the collected The data is presented on the display screen of the console 28 .

The present invention is further described below through the use method of the forming equipment of the present invention, and the specific steps are as follows:

1) Install the above parts as shown in Figure 1;

2) According to the thickness of the metal workpiece to be processed, start the driving motor 13, drive the worm 11 to rotate, make the worm wheel 10 rotate, and drive the eccentric wheel 12 to rotate, thereby driving the driving shaft 6 to raise/lower;

3) After the adjustment is completed, turn off the drive motor 13, install the metal workpiece on the fixture, and place the metal workpiece between the driving roller 3 and the driven roller 4 and just touch;

4) Turn on the pulse power supply 23;

5) Start the first motor 15 and the second motor 20, adjust the motor speed to obtain the required rolling speed, and start the current-assisted array microstructure roll forming experiment after the temperature is stabilized.

The micro-groove structure processed by the current-assisted large-area array micro-structure asynchronous roll forming equipment designed by the present invention has excellent performance and can be applied to a compact, fast and strong heat exchanger, which greatly reduces the processing accuracy while ensuring the processing accuracy. cost.

In the present invention, unless otherwise expressly specified and limited, the terms "installed", "connected", "connected", "fixed" and other terms should be understood in a broad sense, for example, it may be a fixed connection or a detachable connection , or integrated; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal connection of the two elements or the interaction relationship between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

In the present invention, unless otherwise expressly specified and limited, a first feature "on" or "under" a second feature may include the first and second features in direct contact, or may include the first and second features Not directly but through additional features between them. Also, the first feature being "above", "over" and "above" the second feature includes the first feature being directly above and obliquely above the second feature, or simply means that the first feature is level higher than the second feature. The first feature is "below", "below" and "below" the second feature includes the first feature being directly below and diagonally below the second feature, or simply means that the first feature has a lower level than the second feature.

In the present invention, the terms "first", "second", "third", and "fourth" are used for descriptive purposes only, and should not be construed as indicating or implying relative importance.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims (10)

1. A current-assisted large-area array microstructure asynchronous roll forming equipment, characterized in that it comprises a frame platform, a roller mechanism, an adjustment mechanism, a drive device and a power-on device; The roll mechanism comprises a driving roll (3), a driven roll (4), a driving shaft (6), a driven shaft (7) and a support assembly (8), and the surface of the driving roll (3) is provided with an array microstructure and fixedly installed on the driving shaft (6), the driving shaft (6) is placed flat above the frame platform through the support assembly (8); the driven roller (4) is fixedly installed on the On the driven shaft (7), the driven shaft (7) is placed flat above the frame platform through the support assembly (8); the driving roller (3) and the driven roller (4) set in parallel with an adjustable gap between the two; The adjusting mechanism is connected with the driving shaft (6) to adjust the size of the gap between the driving roller (3) and the driven roller (4); The driving device includes a driving roller driving component for driving the driving shaft (6) to drive the driving roller (3) to rotate, and a driving roller driving assembly for driving the driven shaft (7) to drive the driven roller (4) ) rotating driven roller drive assembly, the driving shaft (6) is opposite to the rotation direction of the driven pump (7); The electrification component includes a pulse power supply (23), a positive pole electrification component and a negative pole electrification component, one end of the positive pole electrification component is connected to the driving shaft (6), and the other end is connected to the pulse power supply (23) ; One end of the negative power supply assembly is connected with the driven shaft (7), and the other end is connected with the pulse power supply (23). 2. The current-assisted large-area array microstructure asynchronous roll forming device according to claim 1, wherein the adjustment mechanism comprises a worm wheel (10), a worm (11), an eccentric wheel (12) and a drive motor ( 13), the output end of the drive motor (13) is connected with the worm (11), the worm (11) is engaged with the worm wheel (10), and the worm wheel (10) is with the eccentric wheel (12) The outer edge of the eccentric wheel (12) is rotatably connected with the outer edge of the eccentric wheel (12). 6) Extending through the arc guide groove and connecting with the eccentric hole of the eccentric wheel (12), the driving shaft (6) is rotatably connected with the groove surface of the arc guide groove and can follow the arc The worm wheel (10) drives the eccentric wheel (12) to rotate around the central flange in a plane perpendicular to the driving roller (3), the arc-shaped guide groove, the turbine (10) ) and the eccentric wheel (12) are concentric. 3. The current-assisted large-area array microstructure asynchronous roll forming equipment according to claim 1, wherein the driving mechanism of the driving roller comprises a first motor (15), a first gear (16), a second gear (17) and a first transmission shaft (19), the first motor (15) is fixedly installed on the frame platform, and the output end of the first motor (15) passes through the first transmission shaft (19) Connected with the first gear (16), the second gear (17) is connected with the driving shaft (6) and meshes with the first gear (16), the first gear (16) and the The meshing depth and angle of the second gear (17) are equal to the adjustable range of the gap between the driving roller (3) and the driven roller (4); The driven roller driving mechanism comprises a second motor (20), a third gear (21), a fourth gear (22) and a second transmission shaft (19'), and the second motor (20) is fixedly installed on the On the rack platform, the output end of the second motor (20) is connected to the third gear (20) through the second transmission shaft (19'), and the fourth gear (21) is connected to the slave The moving shaft (7) is connected and meshed with the third gear (20). 4. The current-assisted large-area array microstructure asynchronous roll forming device according to claim 1, wherein the positive electrode power-on assembly comprises a positive electrode power-on mold (24) and a positive electrode cable (25). One end of the power-on mold (24) is connected to the driving shaft (6), one end of the positive cable (25) is connected to the pulse power supply (23), and the other end is connected to the other end of the positive power-on mold (24). One end is connected; the negative electrode power-on assembly includes a negative electrode power-on mold (26) and a negative electrode cable (27), one end of the negative electrode power-on mold (26) is connected to the driven shaft (7), and the negative electrode cable (27) ) is connected to the pulse power supply (23) at one end, and the other end is connected to the other end of the negative electrode electrification mold (26). 5. The current-assisted large-area array microstructure asynchronous roll forming equipment according to claim 1, wherein the sensing device comprises an encoder, two displacement sensors, a force sensor, a temperature sensor and an automatic control console (28 ), the encoder is arranged on the side of the eccentric wheel (12) for detecting the deflection angle of the eccentric wheel (12), so as to control the rotation of the eccentric wheel (12) according to the detected deflection angle ; Two displacement sensors are respectively arranged on the drive shaft (6) and the driven shaft (7), for testing the drive roller (3) and the driven roller (4) to contact each other as a starting point The distance moved, so as to accurately control the roll pressing amount; the force sensor and the temperature sensor are arranged on the driven roll (4) to measure the roll pressure and temperature; through the encoder, two The data collected by the displacement sensor, the force sensor, and the temperature sensor are presented on the display screen of the automatic console (28). 6. The current-assisted large-area array microstructure asynchronous roll forming equipment according to any one of claims 1-5, wherein the frame platform comprises a frame (1) and a frame (1) fixedly installed on the frame ( 1) A platform (2), the frame (1) includes three small frame modules with the same structure welded by profiles, and the platform (2) is directly cut from a steel plate. 7. The current-assisted large-area array microstructure asynchronous roll forming apparatus according to any one of claims 1-5, wherein the support assembly (8) comprises a board-to-board vertically mounted on the frame platform the first fixing plate (8-1), the second fixing plate (8-2) and the third fixing plate (8-3), the two ends of the driving shaft (6) are rotatably connected to and extend through the first fixing plate (8-3). A fixed plate (8-1) and a second fixed plate (8-2), the two ends of the driven shaft (7) are respectively rotatably connected to and extend through the first fixed plate (8-1) and the third fixed plate (8-3); The first fixing plate (8-1) and the second fixing plate (8-2) are provided with three support columns at the upper ends, and two ends of each support column are respectively connected to the first fixing plate (8-1) and the second fixing plate (8-1). The fixing plate (8-2) is fixedly connected. 8. The current-assisted large-area array microstructure asynchronous roll forming apparatus according to claim 7, wherein the first fixing plate (8-1), the second fixing plate (8-2) and the The third fixing plates (8-3) are all made of insulating and high temperature resistant bakelite boards. 9 . The current-assisted large-area array microstructure asynchronous roll forming device according to claim 1 , wherein the driving shaft ( 6 ) and the driven shaft ( 7 ) pass through bearings ( 5) Rotately connected with the support assembly (8), the driving shaft (6) and the driven shaft (7) are respectively connected with the inner ring of the bearing (5), the outer ring of the bearing (5) The ring is connected to the support assembly (8). 10. The current-assisted large-area array microstructure asynchronous roll forming apparatus according to claim 9, characterized in that the current applied by the power-on component is connected from the driving shaft (6), and the current is fed from the slave The driven shaft (7) is led out, an insulating seal is provided between the driving shaft (6) and the inner ring of the bearing (5), the driven shaft (7) and the inner ring of the bearing (5) There are insulating seals in between to avoid the introduction of current into the rack platform.

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