An apparatus and method for ultrasonic standing wave stripping of cathode coatings

Abstract

This invention discloses an apparatus and method for ultrasonic standing wave stripping of a cathode coating. The inner walls of both sides of the gantry frame are fixed to the Y-axis moving plates of two Y-axis motion mechanisms. Z-axis motion mechanisms are provided on both sides of the gantry frame, and two symmetrical support blocks in each of the two Z-axis motion mechanisms are fixed to the ends of two support plates in an X-axis motion mechanism. A vibration head fixing plate is fixed to the worktable of each X-axis motion mechanism. Multiple ultrasonic vibration modules are provided on the vibration head fixing plate, and the transducers in the ultrasonic vibration modules are connected to an ultrasonic generator via cables. The suction nozzle outlet fixed to the vibration head fixing plate is connected to the suction end of an industrial vacuum cleaner via a corrugated pipe. This invention uses standing wave vibration to induce tearing within the cathode coating, achieving the purpose of stripping the cathode coating while avoiding the generation of splatter, reducing damage to the cathode plate, and improving the reusability of the cathode plate.

Description

Technical Field

[0001] This invention belongs to the field of cathode material stripping equipment, specifically relating to an equipment and method for stripping cathode coatings based on ultrasonic standing waves. Background Technology

[0002] To improve the performance of non-ferrous metals, electrolytic refining is often used in the production process to increase metal purity. During electrolytic refining, the sides of the cathode plate are wrapped with insulating material to facilitate subsequent peeling. Peeling the cathode coating off the cathode plate is a crucial step. Currently, cathode coating peeling is mainly accomplished by manual electric hammer peeling, roller-type cathode material peeling equipment, and mechanized hammer-type cathode material peeling equipment. Manual electric hammer peeling results in low production efficiency, high labor intensity for workers, and loud noise. Roller-type cathode material peeling equipment easily generates splashes and dust during the peeling process, and still requires manual clamping of the cathode plate, thus production efficiency and the working environment have not been significantly improved. Mechanized hammer-type cathode material peeling equipment subjectes the cathode plate to heavy impacts, leaving uneven impact marks on the surface, greatly reducing the lifespan of the cathode plate. Furthermore, the cathode plate needs to be re-leveled afterward, increasing production steps and costs. Summary of the Invention

[0003] The purpose of this invention is to overcome the shortcomings of the prior art and to propose a device and method for ultrasonic standing wave stripping of cathode coatings.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] This invention discloses a device for ultrasonic standing wave stripping of cathode coatings, comprising a frame, a Y-axis motion mechanism, a gantry, a Z-axis motion mechanism, an X-axis motion mechanism, an industrial vacuum cleaner, an array-type ultrasonic vibration device, and a positioning and clamping mechanism. The lower ends of the outer side walls on both sides of the frame are equipped with Y-axis motion mechanisms, which synchronously drive the gantry to translate along the horizontally positioned Y-axis. The inner side walls on both sides of the gantry are equipped with Z-axis motion mechanisms, which are symmetrically arranged. Two X-axis motion mechanisms are arranged vertically at a distance, each driven synchronously by two Z-axis motion mechanisms for vertical translation, with the two X-axis motion mechanisms moving in opposite directions.

[0006] The array-type ultrasonic vibration device includes a vibration head fixing plate, ultrasonic vibration modules, and suction nozzles. The vibration head fixing plate has multiple ultrasonic vibration modules arranged in an array. Two suction nozzles pass through two through holes spaced apart on the vibration head fixing plate and are fixed to it. The suction inlets of the two suction nozzles are located on the same side of the vibration head fixing plate as each ultrasonic vibration module. Two array-type ultrasonic vibration devices are provided, and the vibration head fixing plates of both devices are driven by two X-axis motion mechanisms to translate along an X-axis perpendicular to the Y-axis and horizontally. The ultrasonic vibration modules in the two array-type ultrasonic vibration devices are arranged vertically opposite each other and positioned above and below a positioning and clamping mechanism. The positioning and clamping mechanism is located at the upper end of the frame.

[0007] Industrial vacuum cleaners are installed on both sides of the frame. The upper suction end of the two industrial vacuum cleaners is connected to the outlet of the two nozzles in the array ultrasonic vibration device located above through a corrugated pipe. The lower suction end of the two industrial vacuum cleaners is connected to the outlet of the two nozzles in the array ultrasonic vibration device located below through a corrugated pipe.

[0008] Preferably, the Y-axis motion mechanism includes a servo motor, a lead screw, a lead screw nut, a linear guide rail, a slider, a Y-axis moving plate, and a trapezoidal plate. The housing of the servo motor is fixed to the frame via the trapezoidal plate, and the output shaft of the servo motor is fixed to the horizontally arranged lead screw via a coupling. The lead screw and the frame form a revolute joint. The lead screw nut and the lead screw form a ball screw joint via ball bearings. Two linear guide rails symmetrically arranged about the lead screw are fixed to the frame. Two sliders and two linear guide rails respectively form sliding joints and are symmetrically arranged about the lead screw nut. The lead screw nut and two sliders are all fixed to the Y-axis moving plate. The Y-axis moving plates of the two Y-axis motion mechanisms are respectively fixed to the lower ends of the inner sidewalls on both sides of the gantry frame.

[0009] Preferably, the Z-axis motion mechanism includes a second servo motor, two screws with opposite threads, two lead screw nuts, two linear guides, two sliders, a support block, and a fixing plate. The housing of the second servo motor is fixed to the gantry frame via the fixing plate, and the output shaft of the second servo motor is fixed to the vertically arranged screws with opposite threads via a coupling. The screws with opposite threads form a rotating pair with the gantry frame. The two lead screw nuts and the opposite threaded sections at both ends of the screws with opposite threads respectively form ball screw pairs. Two linear guides with opposite threads are vertically fixed to the gantry frame. Each linear guide has two sliders with opposite threads. Two support blocks are fixed to the two lead screw nuts and to two sets of sliders with opposite threads. The two sliders in each set of sliders are symmetrically arranged about one lead screw nut.

[0010] More preferably, the X-axis motion mechanism includes a support plate, a servo motor, a reducer, a rack, a linear guide rail, a slider, a worktable, and a gear shaft. Two support plates are symmetrically arranged. Linear guide rails are fixed to the inner walls of both support plates. Two sliders and two linear guide rails form sliding pairs and are fixed to both ends of the worktable. The housing of the servo motor is fixed to the worktable, and the output shaft of the servo motor is fixed to the input end of the reducer. The housing of the reducer is fixed to the worktable, and its output end is a gear shaft. The gear shaft passes through a circular hole in the worktable and meshes with a rack fixed to the inner wall of one of the support plates. The worktables of the two X-axis motion mechanisms are fixed to the vibration head fixing plates of the two array-type ultrasonic vibration devices. The two support plates of the upper X-axis motion mechanism and the two upper support blocks of the two Z-axis motion mechanisms are fixed, and the two support plates of the lower X-axis motion mechanism and the two lower support blocks of the two Z-axis motion mechanisms are fixed.

[0011] Preferably, the ultrasonic vibration module includes a transducer, an amplitude transformer, and a vibration head; the housing of the transducer is fixed to the vibration head fixing plate; the output end of the transducer is fixedly connected to the amplitude transformer, and the amplitude transformer and the vibration head are connected by threads; the cable of the transducer is connected to the ultrasonic generator.

[0012] Preferably, the positioning and clamping mechanism includes a U-shaped positioning slide plate and pneumatic fingers; the U-shaped positioning slide plate is horizontally fixed to the upper end of the frame; both sides of the inner sidewall of the U-shaped positioning slide plate are provided with horizontal slide grooves and n vertical slots arranged at equal intervals, and 2≤n≤4; the vertical slots are connected to the horizontal slide grooves; and a pneumatic finger is fixed in each vertical slot.

[0013] More preferably, the head of the vibrating head is rounded.

[0014] More preferably, a plurality of rollers are hinged within the horizontal groove.

[0015] More preferably, the inner sides of the two grippers in the pneumatic finger are fixed with rubber layers, and the rubber layers have multiple equally spaced grooves.

[0016] The present invention discloses a cathode coating stripping method based on an ultrasonic standing wave stripping device, the specific details of which are as follows:

[0017] Step 1: Insert both ends of the cathode plate to be stripped of cathode coating into two horizontal slots respectively, and then the controller controls each pneumatic finger to clamp the cathode plate.

[0018] Step 2: The controller controls the two Y-axis motion mechanisms to move the gantry synchronously along the Y-axis; at the same time, the controller controls the two X-axis motion mechanisms to move the two array-type ultrasonic vibration devices synchronously along the X-axis.

[0019] Step 3: After the two array-type ultrasonic vibration devices move to the area to be peeled on the cathode plate where the cathode coating is to be peeled off, the controller controls the two Y-axis motion mechanisms and the two X-axis motion mechanisms to stop working. Then, it controls the two Z-axis motion mechanisms to drive the two X-axis motion mechanisms to move towards each other along the Z-axis direction until the vibration heads on the two array-type ultrasonic vibration devices are close to the cathode coating on the upper and lower sides of the cathode plate.

[0020] Step 4: Start the ultrasonic generator and each industrial vacuum cleaner. The electrical signal emitted by the ultrasonic generator is converted into mechanical vibration by each transducer and transmitted to each vibrating head through the corresponding amplitude transformer. Each vibrating head moves up and down reciprocally, striking the cathode coating on both sides of the cathode plate and emitting ultrasonic waves to the cathode coating on both sides. The two sets of ultrasonic waves have the same frequency and amplitude, and propagate in opposite directions. After the two sets of ultrasonic waves encounter the cathode plate, they are reflected back. The frequency and amplitude of the reflected waves are the same as the incident waves, and the propagation direction is opposite to the incident waves. Finally, the incident waves and reflected waves are superimposed to form two sets of standing waves. Under the action of the standing wave vibration, tearing occurs inside the cathode coating on both sides. After several seconds, the cathode coating on both sides in the area to be peeled off separates from the cathode plate and is sucked in by the corresponding side suction nozzle. It is collected in the corresponding industrial vacuum cleaner through the corrugated pipe. Then, turn off the ultrasonic generator and each industrial vacuum cleaner.

[0021] Step 5: The controller controls the two Z-axis motion mechanisms to drive the two X-axis motion mechanisms to move in opposite directions along the Z-axis, so that the two array-type ultrasonic vibration devices move in opposite directions to move away from the cathode plate.

[0022] Step 6: Repeat steps 2 to 5 to complete the stripping and cleaning of the cathode coating in the next area to be stripped from the cathode plate.

[0023] Step 7: Repeat step 6 until all cathode coatings on the cathode plate have been peeled off and cleaned. Then, the controller controls the two Y-axis motion mechanisms, two X-axis motion mechanisms, and two Z-axis motion mechanisms to reset, so that the two array ultrasonic vibration devices return to their initial positions. Then, the controller controls each pneumatic finger to release the cathode plate, and finally, the cathode plate is removed.

[0024] The beneficial effects of this invention are as follows:

[0025] 1. This invention controls the movement of each vibrating head of two array-type ultrasonic vibration devices to close to the cathode coating on both sides of the cathode plate via Y-axis, Z-axis, and X-axis motion mechanisms. Then, the transducers on both sides convert the electrical signals emitted by the ultrasonic generator into mechanical vibrations, causing the vibrating heads to reciprocate up and down. The ultrasonic waves striking the cathode coating on both sides of the cathode plate have equal frequencies, equal amplitudes, and opposite propagation directions. The two sets of ultrasonic waves, along with their reflected waves, superimpose to form standing waves. Under the action of the standing wave vibration, tearing occurs inside the cathode coating, thereby achieving the purpose of peeling off the cathode coating. This method avoids the generation of splashes and does not cause additional damage to the cathode plate, improving the reusability of the cathode plate. Simultaneously, this invention uses an industrial vacuum cleaner to collect the cathode coating peeled off during the process, reducing dust pollution and improving the working environment. This invention is an automated device with a simple structure and convenient operation, greatly reducing the labor intensity of workers and improving the efficiency of cathode coating peeling.

[0026] 2. In this invention, the multiple ultrasonic vibration modules set on the vibrating head fixing plate are arranged in an array, which greatly reduces the cost of ultrasonic vibration modules required to cover the entire cathode plate. At the same time, local cyclic vibration can achieve a better peeling effect.

[0027] 3. In this invention, the frequency and amplitude of the initial ultrasonic wave emitted by the ultrasonic generator can be adjusted to change the position of the nodes and antinodes of the standing wave, thereby achieving the peeling of cathode coatings of different materials. Attached Figure Description

[0028] Figure 1 This is a perspective view of the overall structure of the present invention;

[0029] Figure 2 This is a side view of the overall structure of the present invention;

[0030] Figure 3 This is a schematic diagram of the front part of the overall structure of the present invention;

[0031] Figure 4 for Figure 3 A partial view of the BB section;

[0032] Figure 5 for Figure 3 Enlarged view of section C;

[0033] Figure 6 This is a schematic diagram of the X-axis motion mechanism in this invention;

[0034] Figure 7 This is a schematic diagram of the array-type ultrasonic vibration device in this invention;

[0035] Figure 8This is a cross-sectional view of the array-type ultrasonic vibration device in this invention;

[0036] Figure 9 This is a cross-sectional view of the positioning and clamping mechanism in this invention;

[0037] Figure 10 for Figure 9 Enlarged view of section D. Detailed Implementation

[0038] The present invention will now be further described with reference to the accompanying drawings.

[0039] like Figure 1 As shown, an apparatus for ultrasonic standing wave stripping of cathode coatings includes a frame 2, a Y-axis motion mechanism 3, a gantry 4, a Z-axis motion mechanism 5, an X-axis motion mechanism 6, an industrial vacuum cleaner 7, an array-type ultrasonic vibration device 9, and a positioning and clamping mechanism. Y-axis motion mechanisms 3 are provided at the lower ends of the outer side walls on both sides of the frame 2, and the two Y-axis motion mechanisms 3 synchronously drive the gantry 4 to translate along the horizontally set Y-axis. Z-axis motion mechanisms 5 are provided on the inner side walls on both sides of the gantry 4, and the two Z-axis motion mechanisms 5 are symmetrically arranged. Two X-axis motion mechanisms 6 are arranged vertically at a distance, and each X-axis motion mechanism 6 is synchronously driven by two Z-axis motion mechanisms 5 to translate vertically, with the two X-axis motion mechanisms 6 translating in opposite directions.

[0040] like Figure 7 and Figure 8 As shown, the array-type ultrasonic vibration device 9 includes a vibration head fixing plate 68, ultrasonic vibration modules, and suction nozzles 96. The vibration head fixing plate 68 has multiple ultrasonic vibration modules arranged in an array. Two suction nozzles 96 pass through two spaced through holes on the vibration head fixing plate 68 and are fixed to it. The suction inlets of the two suction nozzles 96 are located on the same side of the vibration head fixing plate 68 as each ultrasonic vibration module. Two array-type ultrasonic vibration devices 9 are provided, and the vibration head fixing plates 68 of the two array-type ultrasonic vibration devices 9 are driven by two X-axis motion mechanisms 6 to translate along an X-axis perpendicular to the Y-axis and horizontally. The ultrasonic vibration modules in the two array-type ultrasonic vibration devices 9 are arranged vertically opposite each other and are positioned on the upper and lower sides of the positioning and clamping mechanism. The positioning and clamping mechanism is located on the upper end of the frame 2.

[0041] like Figure 1 As shown, industrial vacuum cleaners 7 are provided on both sides of the frame 2, and the suction end of the two industrial vacuum cleaners 7 at the upper end is connected to the outlet of the two suction nozzles 96 in the array ultrasonic vibration device 9 located above by a corrugated pipe 95, and the suction end of the two industrial vacuum cleaners 7 at the lower end is connected to the outlet of the two suction nozzles 96 in the array ultrasonic vibration device 9 located below by a corrugated pipe 95.

[0042] As a preferred embodiment, such as Figure 2 and Figure 5 As shown, the Y-axis motion mechanism 3 includes a servo motor 21, a lead screw 23, a lead screw nut 24, linear guide rails 27, sliders 28, a Y-axis moving plate 29, and a trapezoidal plate 30. The housing of the servo motor 21 is fixed to the frame 2 via the trapezoidal plate 30. The output shaft of the servo motor 21 is fixed to the horizontally arranged lead screw 23 via a coupling 22. The lead screw 23 and the frame 2 form a revolute joint. The lead screw nut 24 forms a ball screw joint with the lead screw 23 via ball bearings. Two linear guide rails 27, symmetrically arranged about the lead screw 23, are fixed to the frame 2. Two sliders 28 and two linear guide rails 27 respectively form sliding joints and are symmetrically arranged about the lead screw nut 24. The lead screw nut 24 and the two sliders 28 are all fixed to the Y-axis moving plate 29. The Y-axis moving plates 29 of the two Y-axis motion mechanisms 3 are respectively fixed to the lower ends of the inner sidewalls on both sides of the gantry frame 4.

[0043] As a preferred embodiment, such as Figure 3 and Figure 4 As shown, the Z-axis motion mechanism 5 includes a servo motor 41, a screw 43 with opposite threads, a lead screw nut 44, a linear guide rail 47, a slider 48, a support block 49, and a fixing plate 50. The housing of the servo motor 41 is fixed to the gantry 4 via the fixing plate 50, and the output shaft of the servo motor 41 is fixed to the vertically arranged screw 43 with opposite threads via a coupling 42. The screw 43 with opposite threads and the gantry 4 form a rotating pair. The two lead screw nuts 44 and the opposite threaded sections at both ends of the screw 43 form ball screw pairs. The two linear guide rails 47, symmetrically arranged about the screw 43, are vertically fixed to the gantry 4. Each linear guide rail 47 is provided with two sliders 48. The two support blocks 49 are fixed to the two lead screw nuts 44 and to the two sets of sliders 48. The two sliders 48 in each set of sliders 48 are symmetrically arranged about one lead screw nut 44.

[0044] More preferably, such as Figure 6As shown, the X-axis motion mechanism 6 includes a support plate 61, a servo motor 62, a reducer 63, a rack 64, a linear guide rail 65, a slider 66, a worktable 67, and a gear shaft 69. Two support plates 61 are symmetrically arranged. Linear guide rails 65 are fixed to the inner walls of both support plates 61. The two sliders 66 and the two linear guide rails 65 form sliding pairs and are fixed to both ends of the worktable 67. The housing of the servo motor 62 is fixed to the worktable 67, and the output shaft of the servo motor 62 is fixed to the input end of the reducer 63. The housing of the reducer 63 is fixed to the worktable 67, and its output end is the gear shaft 69. The gear shaft 69 passes through a circular hole in the worktable 67 and meshes with a rack 64 fixed to the inner wall of one of the support plates 61, forming a gear pair. The worktables 67 of the two X-axis motion mechanisms 6 are fixed to the vibration head fixing plates 68 of the two array-type ultrasonic vibration devices 9 respectively; the two support plates 61 of the upper X-axis motion mechanism 6 and the two support blocks 49 of the two Z-axis motion mechanisms 5 are fixed to each other, and the two support plates 61 of the lower X-axis motion mechanism 6 and the two support blocks 49 of the two Z-axis motion mechanisms 5 are fixed to each other.

[0045] As a preferred embodiment, such as Figure 7 and Figure 8 As shown, the ultrasonic vibration module includes a transducer 91, an amplitude transformer 92, and a vibration head 93; the housing of the transducer 91 is fixed to the vibration head fixing plate 68; the output end of the transducer 91 is fixedly connected to the amplitude transformer 92, and the amplitude transformer 92 is connected to the vibration head 93 by a thread; the cable 94 of the transducer 91 is connected to the ultrasonic generator 8.

[0046] As a preferred embodiment, such as Figure 9 and Figure 10 As shown, the positioning and clamping mechanism includes a U-shaped positioning slide plate 81 and pneumatic fingers 82. The U-shaped positioning slide plate 81 is horizontally fixed to the upper end of the frame 2. Both sides of the inner wall of the U-shaped positioning slide plate 81 are provided with horizontal slide grooves and n equally spaced vertical slots, where 2≤n≤4. The vertical slots communicate with the horizontal slide grooves. A pneumatic finger 82 is fixed in each vertical slot. In the initial state, the ends of the two grippers in each pneumatic finger 82 are flush with the upper and lower inner walls of the corresponding horizontal slide groove.

[0047] In a preferred embodiment, the two ends of the lead screw 23 are supported on the frame 2 by a fixed side support 25 and a supporting side support 26, respectively.

[0048] In a preferred embodiment, the two ends of the positive and negative threaded screw 43 are supported on the gantry frame 4 by a fixed side support 45 and a supporting side support 46, respectively.

[0049] As a preferred embodiment, the servo motor 41 is equipped with a servo brake function to prevent the array-type ultrasonic vibration device 9 located above the cathode plate 1 from falling onto the cathode plate 1 after a power outage.

[0050] In a preferred embodiment, the suction nozzle 96 is fixed to the vibrating head fixing plate 68 by a retaining ring 97.

[0051] As a preferred embodiment, the head of the vibrating head 93 is rounded to prevent leaving marks on the cathode plate.

[0052] In a preferred embodiment, a number of rollers 83 are hinged in the horizontal groove, making it easier for the cathode plate 1 to be inserted into the horizontal groove.

[0053] In a preferred embodiment, the inner sides of the two grippers in the pneumatic finger 82 are fixed with rubber layers, and multiple equally spaced grooves are provided on the rubber layers to prevent dents from being left on the cathode plate 1.

[0054] Among them, the two servo motors 1 21, the two servo motors 2 41, the two servo motors 3 62 and each pneumatic finger 82 are all controlled by the controller.

[0055] The present invention discloses a cathode coating stripping method based on an ultrasonic standing wave stripping device, the specific details of which are as follows:

[0056] Step 1: Insert both ends of the cathode plate 1, to be stripped of the cathode coating, into the two horizontal slots respectively. Then, the controller controls each pneumatic finger 82 to clamp the cathode plate 1.

[0057] Step 2: The controller controls two Y-axis motion mechanisms 3 to synchronously move the gantry 4 along the Y-axis; simultaneously, the controller controls two X-axis motion mechanisms 6 to synchronously move the two array-type ultrasonic vibration devices 9 along the X-axis. The process of the Y-axis motion mechanism 3 moving the gantry 4 along the Y-axis is as follows: the controller controls the output shaft of servo motor 21 to rotate, which drives the lead screw 23 to rotate, and in turn drives the lead screw nut 24 to move along the Y-axis, thereby moving the gantry 4 along the Y-axis. The process of the controller controlling the X-axis motion mechanism 6 to move the array-type ultrasonic vibration devices 9 along the X-axis is as follows: the controller controls the output shaft of servo motor 62 to rotate, which drives the gear shaft 69 to rotate through the reducer 63. The gear shaft 69 meshes with the rack 64, and moves the worktable 67 along the X-axis, thereby moving the array-type ultrasonic vibration devices 9 along the X-axis.

[0058] Step 3: After the two array-type ultrasonic vibration devices 9 move to the area to be peeled on the cathode plate 1 where the cathode coating is to be peeled off, the controller stops the two Y-axis motion mechanisms 3 and the two X-axis motion mechanisms 6. Then, it controls the two Z-axis motion mechanisms 5 to drive the two X-axis motion mechanisms 6 to move towards each other along the Z-axis until the vibration heads 93 on the two array-type ultrasonic vibration devices 9 are close to the cathode coating on the upper and lower sides of the cathode plate 1. The process by which the controller controls each Z-axis motion mechanism 5 to drive the two X-axis motion mechanisms 6 is as follows: The controller controls the output shaft of the servo motor 41 to rotate, the servo motor 41 drives the screw 43 to rotate, and the two lead screw nuts 44 on the screw 43 move towards each other along the Z-axis, thereby driving the two X-axis motion mechanisms 6 to move towards each other along the Z-axis.

[0059] Step 4: Start the ultrasonic generator 8 and each industrial vacuum cleaner 7. The electrical signal emitted by the ultrasonic generator 8 is converted into mechanical vibration by each transducer 91 and transmitted to each vibrating head 93 through the corresponding amplitude transformer 92. Each vibrating head 93 moves up and down reciprocally, striking the cathode coating on both sides of the cathode plate and emitting ultrasonic waves to the cathode coating on both sides. The two sets of ultrasonic waves have the same frequency and amplitude, and propagate in opposite directions. After the two sets of ultrasonic waves encounter the cathode plate, they are reflected back. The frequency and amplitude of the reflected wave are the same as the incident wave (i.e., the ultrasonic wave emitted by the vibrating head 93 to the cathode coating), and the propagation direction is opposite to the incident wave. Finally, the incident wave and the reflected wave are superimposed to form two sets of standing waves. Under the action of the standing wave vibration, tearing occurs inside the cathode coating on both sides. After several seconds, the cathode coating on both sides in the area to be peeled off is separated from the cathode plate 1 and sucked in by the corresponding side suction nozzle 96. It is collected in the corresponding industrial vacuum cleaner 7 through the bellows 95. Then, turn off the ultrasonic generator 8 and each industrial vacuum cleaner 7.

[0060] Step 5: The controller controls the two Z-axis motion mechanisms 5 to drive the two X-axis motion mechanisms 6 to move in opposite directions along the Z-axis, so that the two array-type ultrasonic vibration devices 9 move in opposite directions to move away from the cathode plate 1.

[0061] Step 6: Repeat steps 2 to 5 to complete the stripping and cleaning of the cathode coating in the next area to be stripped from cathode plate 1.

[0062] Step 7: Repeat step 6 until all cathode coatings on cathode plate 1 have been peeled off and cleaned. Then, the controller controls the two Y-axis motion mechanisms 3, the two X-axis motion mechanisms 6 and the two Z-axis motion mechanisms 5 to reset, so that the two array ultrasonic vibration devices 9 return to their initial positions. Then, the controller controls each pneumatic finger 82 to release cathode plate 1, and finally, cathode plate 1 is removed.

Claims

1. An apparatus for coating based on ultrasonic standing wave peeling of a cathode, comprising a frame and a positioning clamping mechanism, characterized in that: Also include Y-axis movement mechanism, gantry, Z-axis movement mechanism, X-axis movement mechanism, industrial dust collector and array type ultrasonic vibration device; The lower end of the outer side wall of the both sides of the rack is provided with Y-axis movement mechanism, two Y-axis movement mechanisms drive the gantry to translate along the horizontally arranged Y-axis synchronously; The inner side wall of the both sides of the gantry is provided with Z-axis movement mechanism, and two Z-axis movement mechanisms are symmetrically arranged; The X-axis movement mechanism is provided with two arranged in upper and lower spaces, each X-axis movement mechanism is driven to translate up and down by two Z-axis movement mechanisms synchronously, and the up and down translation directions of the two X-axis movement mechanisms are opposite; The array type ultrasonic vibration device includes a vibration head fixing plate, an ultrasonic vibration module and a suction nozzle; A plurality of ultrasonic vibration modules are arranged in an array on the vibration head fixing plate; Two suction nozzles pass through two through holes with a spacing on the vibration head fixing plate and are fixed with the vibration head fixing plate; The suction inlet of the two suction nozzles is on the same side of each ultrasonic vibration module on the vibration head fixing plate; The array type ultrasonic vibration device is provided with two, and the vibration head fixing plates of the two array type ultrasonic vibration devices are driven to translate along the X-axis perpendicular to the Y-axis and horizontally by two X-axis movement mechanisms; The ultrasonic vibration modules in the two array type ultrasonic vibration devices are arranged opposite to each other up and down, and are arranged on the upper and lower sides of the positioning and clamping mechanism; The positioning and clamping mechanism is arranged on the upper end of the rack; The both sides of the rack are provided with industrial dust collectors, and the suction inlets of the upper ends of the two industrial dust collectors are connected with the exhaust outlets of the two suction nozzles in the array type ultrasonic vibration device above through a corrugated pipe respectively, and the suction inlets of the lower ends of the two industrial dust collectors are connected with the exhaust outlets of the two suction nozzles in the array type ultrasonic vibration device below through a corrugated pipe respectively.

2. The apparatus for coating based on ultrasonic standing wave peeling cathode according to claim 1, characterized in that: The Y-axis movement mechanism includes a servo motor one, a lead screw, a lead screw nut one, a linear guide rail one, a sliding block one, a Y-axis moving plate and a trapezoidal plate; The housing of the servo motor one is fixed with the rack through the trapezoidal plate, and the output shaft of the servo motor one is fixed with the horizontally arranged lead screw through a coupling one; The lead screw and the rack constitute a rotating pair; The lead screw nut one and the lead screw constitute a ball screw pair through balls; Two linear guide rails one symmetrically arranged about the lead screw are fixed on the rack; Two sliding blocks one and two linear guide rails one constitute sliding pairs respectively, and are symmetrically arranged about the lead screw nut one; The lead screw nut one and the two sliding blocks one are fixed with the Y-axis moving plate; The Y-axis moving plates of the two Y-axis movement mechanisms are fixed with the lower ends of the inner side walls of the both sides of the gantry respectively.

3. The apparatus for coating based on ultrasonic standing wave peeling cathode according to claim 1, characterized in that: The Z-axis movement mechanism comprises a second servo motor, a positive and negative tooth screw rod, two screw nuts, two linear guides, two sliding blocks, a support block and a fixing plate; the housing of the second servo motor is fixed with the gantry through the fixing plate, and the output shaft of the second servo motor is fixed with the vertically arranged positive and negative tooth screw rod through a second shaft coupling; the positive and negative tooth screw rod and the gantry constitute a rotary pair; the two screw nuts are respectively fixed with the screw thread segments with opposite rotation directions at the two ends of the positive and negative tooth screw rod to form two ball screw pairs; the two linear guides symmetrically arranged about the positive and negative tooth screw rod are vertically fixed on the gantry; two sliding blocks are arranged on each linear guide; the two screw nuts are respectively fixed with the two support blocks and the two groups of sliding blocks; the two sliding blocks in each group of sliding blocks are symmetrically arranged about one screw nut.

4. The apparatus for coating based on ultrasonic standing wave peeling cathode according to claim 3, characterized in that: The X-axis movement mechanism comprises a support plate, a third servo motor, a speed reducer, a rack, a third linear guide, a third sliding block, a workbench and a gear shaft; the support plate is provided with two symmetrically arranged support plates; the inner side walls of the two support plates are fixed with the third linear guides; the two third sliding blocks and the two third linear guides respectively form sliding pairs and are respectively fixed with the two ends of the workbench; the housing of the third servo motor is fixed with the workbench, and the output shaft of the third servo motor is fixed with the input end of the speed reducer; the housing of the speed reducer is fixed with the workbench, and the output end is the gear shaft; the gear shaft passes through the circular hole formed in the workbench and is engaged with the rack fixed on the inner side wall of one of the support plates; the workbenches of the two X-axis movement mechanisms are respectively fixed with the vibration head fixing plates of the two arrayed ultrasonic vibration devices; the two support plates of the X-axis movement mechanism located at the upper side are fixed with the two support blocks of the two Z-axis movement mechanisms located at the upper side, and the two support plates of the X-axis movement mechanism located at the lower side are fixed with the two support blocks of the two Z-axis movement mechanisms located at the lower side.

5. The apparatus for coating based on ultrasonic standing wave peeling cathode according to claim 1, characterized in that: The ultrasonic vibration module comprises a transducer, a horn and a vibration head; the housing of the transducer is fixed with the vibration head fixing plate; the output end of the transducer is fixedly connected with the horn, and the horn is connected with the vibration head through a threaded connection; the cable of the transducer is connected with the ultrasonic generator.

6. The apparatus for coating based on ultrasonic standing wave peeling cathode according to claim 5, characterized in that: The positioning and clamping mechanism comprises a U-shaped positioning sliding groove plate and a pneumatic finger; the U-shaped positioning sliding groove plate is horizontally fixed at the upper end of the rack; the inner side walls of the two sides of the U-shaped positioning sliding groove plate are respectively provided with a horizontal sliding groove and n vertical slots arranged at equal intervals, and 2≤n≤4; the vertical slots are communicated with the horizontal sliding groove; each vertical slot is fixed with a pneumatic finger.

7. The apparatus for coating based on ultrasonic standing wave peeling cathode according to claim 6, characterized in that: The head of the vibration head is subjected to round corner processing.

8. The apparatus for coating based on ultrasonic standing wave peeling cathode according to claim 6, characterized in that: A plurality of rollers are hinged in the horizontal sliding groove.

9. The apparatus for coating based on ultrasonic standing wave peeling cathode according to claim 6, characterized in that: The inner sides of the two clamping jaws of the pneumatic finger are respectively fixed with rubber layers, and a plurality of grooves are formed in the rubber layers at equal intervals.

10. The method of claim 6 to 9, wherein the method is a method of cathode coating exfoliation of an apparatus based on an ultrasonic standing wave cathode coating exfoliation, characterized in that: The method specifically comprises the following steps: Step one: inserting the two ends of the cathode plate to be stripped of the cathode coating into the two horizontal sliding grooves, and then controlling the controller to clamp the cathode plate through the pneumatic fingers; Step two: controlling the controller to synchronously drive the gantry to move along the Y-axis direction through the two Y-axis movement mechanisms; simultaneously, controlling the controller to synchronously drive the two arrayed ultrasonic vibration devices to move along the X-axis direction through the two X-axis movement mechanisms; Step three, when the two array ultrasonic vibration devices move to the area to be stripped on the cathode plate, the controller controls the two Y-axis motion mechanisms and the two X-axis motion mechanisms to stop working, and then controls the two Z-axis motion mechanisms to drive the two X-axis motion mechanisms to move towards each other along the Z-axis direction until the vibration heads on the two array ultrasonic vibration devices are close to the cathode coatings on the upper and lower sides of the cathode plate respectively; Step four, start the ultrasonic generator and each industrial dust collector, the electrical signal emitted by the ultrasonic generator is converted into mechanical vibration through the transducer, and is transmitted to each vibration head through the corresponding amplitude transformer, the vibration heads reciprocate up and down, shock the cathode coatings on the upper and lower sides of the cathode plate, and emit ultrasonic waves to the cathode coatings on the two sides; the ultrasonic waves of the upper and lower groups have equal frequency and equal amplitude, and the propagation directions are opposite, the ultrasonic waves of the upper and lower groups are reflected back after meeting the cathode plate, the reflected waves have the same frequency and amplitude as the incident waves, and the propagation direction is opposite to the incident waves, finally the incident waves and the reflected waves superimpose to form the upper and lower groups of standing waves, under the action of the standing wave vibration, the cathode coatings on the two sides inside the area to be stripped are torn, after several seconds, the cathode coatings on the two sides inside the area to be stripped are separated from the cathode plate, and are sucked into the corresponding suction nozzle, collected through the bellows into the corresponding industrial dust collector, and then the ultrasonic generator and each industrial dust collector are turned off; Step five, the controller controls the two Z-axis motion mechanisms to drive the two X-axis motion mechanisms to move away from each other along the Z-axis direction, so that the two array ultrasonic vibration devices move away from the cathode plate; Step six, repeat steps two to five to complete the stripping and cleaning of the cathode coatings in the next area to be stripped on the cathode plate; Step seven, repeat step six until the stripping and cleaning of all cathode coatings on the cathode plate are completed, then the controller controls the two Y-axis motion mechanisms, the two X-axis motion mechanisms and the two Z-axis motion mechanisms to reset, so that the two array ultrasonic vibration devices return to the initial position, then the controller controls each pneumatic finger to release the cathode plate, and finally the cathode plate is removed.

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