A battery string EL repair machine

Abstract

The present invention discloses a battery string EL repair machine, which includes a frame, an NG string loading and positioning mechanism, a Y and Z axis transfer mechanism, an EL detection mechanism, an interchangeable double repair table mechanism, a battery string conveying mechanism, a foot pedal and an EL display. The frame above the NG string loading and positioning mechanism is equipped with a Y and Z axis transfer mechanism, and the Y and Z axis transfer mechanism moves the NG string to the EL detection mechanism arranged on the workbench for testing. The workbench in front of the EL detection mechanism is equipped with an interchangeable double repair table mechanism for receiving NG products, and the workbench behind the EL detection mechanism is equipped with a battery string conveying mechanism for receiving OK products. Through the above method, the present invention repairs the NG battery string, can distinguish the loading according to the A / B string, can accurately press the lead wire for detection, the repair table has a preheating function, and the upper and lower rework tables are switched to ensure the repair rhythm.

Description

Technical Field

[0001] The invention relates to the technical field of solar module manufacturing, in particular to a battery string EL repair machine. Background Art

[0002] When producing solar cell modules, multiple cells and welding ribbons need to be welded into cell strings. In the process of producing cell strings, a cell in a string may be damaged due to handling, movement and hidden cracks in the cells themselves; or in the process of welding the cells into strings, the welding ribbon and the cell are not welded firmly, resulting in cold solder joints. In addition, there may be problems such as dirt and missing corners. When a cell in the cell string is damaged, the damaged cell in the cell string needs to be replaced with a qualified cell. When a cell in the cell string is cold soldered, the cold solder joint in the cell string needs to be re-welded.

[0003] The traditional repair method is manual processing: when replacing the battery cell, use the soldering iron tip to remove the damaged battery cell from the soldering ribbon, then replace the qualified battery cell with the damaged battery cell, and then use the soldering iron tip to solder the soldering ribbon to the qualified battery cell. This manual repair method is not only inefficient, but also because the battery string is relatively long, it is inconvenient to move the battery string during manual repair, which is easy to cause secondary damage to the battery cells on the battery string. After repair, it is also necessary to test the repaired product and determine whether to continue repair or succeed based on the test results. The operation is cumbersome and involves complex steps.

[0004] Based on the above defects and shortcomings, it is necessary to improve the existing technology and design a battery string EL repair machine. Summary of the invention

[0005] The main technical problem solved by the present invention is to provide an EL repair machine for battery strings. After the NG battery strings are loaded centrally, the NG battery strings are repaired manually at the repair station. The equipment automatically completes the battery string detection and handling actions, and provides OK strings after repair according to the requirements of the subsequent string-hanging machine. The loading can be distinguished according to A / B strings, the battery strings can be positioned in two directions, the leads can be accurately pressed for detection, the rework station has a preheating function, and the upper and lower rework stations can be switched to ensure the rework rhythm.

[0006] In order to solve the above technical problems, a technical solution adopted by the present invention is: to provide a battery string EL rework machine, which includes a frame, an NG string loading and positioning mechanism, a Y, Z axis transfer mechanism, an EL detection mechanism, an interchangeable double rework table mechanism, a battery string conveying mechanism, a foot pedal and an EL display. A double-station NG string loading and positioning mechanism is installed on the working rear side of the frame, and a Y, Z axis transfer mechanism is installed on the frame above the NG string loading and positioning mechanism. The Y, Z axis transfer mechanism moves the NG string to the EL detection mechanism arranged on the workbench for testing, and an interchangeable double rework table mechanism for receiving NG products is installed on the workbench on the front side of the EL detection mechanism, and a battery string conveying mechanism for receiving OK products is installed on the workbench on the rear side of the EL detection mechanism. A foot pedal is arranged on the front side of the frame, and an EL display electrically connected to the EL detection mechanism is installed on the frame.

[0007] Preferably, the NG string loading positioning mechanism includes an NG string box loading tray, an OK string box tray, a cross laser and a positioning bar. The NG string box loading tray and the OK string box tray are arranged on a workbench. A cross laser is installed on the frame above the NG string box loading tray. The cross laser emits a cross cursor positioning ray toward the NG string box loading tray for locating the short side position of the battery string. A positioning bar for locating the long side position of the battery string is installed on one side of the long side direction of the NG string box loading tray, and the positioning bar is provided with an inclined surface on the side facing the battery string.

[0008] Preferably, the Y and Z axis transfer mechanism includes a Y-axis rack and pinion drive module, a transfer frame, a Z-axis servo drive module, a grabbing profile, a suction cup mounting plate and a suction cup, the Y-axis rack and pinion drive module is arranged on the frame, the Y-axis rack and pinion drive module drives the transfer frame to move horizontally in the Y-axis direction, the transfer frame is installed with a Z-axis servo drive module, the Z-axis servo drive module drives the grabbing profile to move in the vertical direction of the Z-axis, a suction cup mounting plate is installed in an array at the lower end of the grabbing profile, suction cups are installed at both protruding ends of the suction cup mounting plate, and the suction cup mounting plate is provided with mounting waist-shaped holes for adjusting the mounting position of the suction cup.

[0009] Preferably, the Y-axis gear rack drive module includes a Y-axis linear slide, a transfer plate, a motor mounting frame, a reduction motor, a gear, a rack, a pad and a guide drag chain. Two Y-axis linear slides are installed on the frame, and a transfer plate is installed on the slider of the Y-axis linear slide. A transfer frame is installed on the two transfer plates. A motor mounting frame is installed on one of the transfer plates, and a reduction motor is installed on the motor mounting frame. The reduction motor drives the gear to rotate. A rack meshing with the gear is provided under the gear. The rack is installed on the frame through a pad, and the other transfer plate is connected to the frame through a guide drag chain.

[0010] Preferably, the Z-axis servo drive module includes a Z-axis mounting plate, a servo electric cylinder, a lifting plate, a guide shaft, a guide sleeve, a limit bolt and a pressure sensor. The Z-axis mounting plate is installed at the bottom of the transfer rack, the servo electric cylinder is installed on the Z-axis mounting plate, the lifting plate is installed on the piston rod of the servo electric cylinder, two guide shafts are installed on the lifting plate, the Z-axis mounting plate is installed with a guide sleeve matching the guide shaft, the Z-axis mounting plate is installed with a vertically arranged limit bolt, and the pressure sensor is installed on the lifting plate.

[0011] Preferably, the EL detection mechanism includes a supporting profile, a camera holder, an EL camera, a movable adjustment component and an EL test fixture component. The supporting profile is arranged on a workbench, two camera holders are installed on the supporting profile, an EL camera is installed on the camera holder, two movable adjustment components are arranged above the EL camera, an EL test fixture component is installed on the adjustment push plate of the movable adjustment component, the distance between the two EL test fixture components is adjusted according to the length of the battery string, and a waist-shaped hole for adjusting the installation position is provided on the camera holder.

[0012] Preferably, the movable adjustment component includes a linear slide rail, a mounting sheet metal, an adjustment push plate, a locking screw and a baffle. The side ends of two mutually parallel linear slide rails are fixed to the frame through the mounting sheet metal. An adjustment push plate is installed on the slider of the linear slide rail. A locking screw is vertically installed on the adjustment push plate. The locking screw is opposite to the linear slide rail. Baffles for preventing falling are installed at both ends of the linear slide rail.

[0013] Preferably, the EL test fixture assembly includes a bottom plate, an EL lower power-on fixture, a spring, an EL upper power-on fixture, a top plate and a positioning card plate, the bottom plate is installed on two relatively adjusting push plates, the EL lower power-on fixture is installed on the bottom plate, the EL lower power-on fixture is connected to the EL upper power-on fixture above it through a spring, a top plate is installed on the upper end of the EL upper power-on fixture, a positioning card plate is installed on the upper end of the top plate, the upper end of the positioning card plate is provided with a positioning card slot for positioning that cooperates with the grabbing profile, the EL lower power-on fixture and the EL upper power-on fixture are externally connected to an EL industrial computer, and the EL display displays the test results.

[0014] Preferably, the interchangeable double rework table mechanism comprises a guide linear slide rail, a lower rework table, a lower driving cylinder, an upper rework table, a connecting bracket, an upper driving cylinder and a hydraulic buffer; two mutually parallel guide linear slide rails are arranged on the workbench; the lower rework table is installed on the sliders of the two guide linear slide rails; a lower driving cylinder is installed on the workbench; a piston rod of the lower driving cylinder is fixedly connected to the lower rework table; an upper rework table is arranged above the lower rework table; the upper rework table is fixedly connected to another group of sliders on the two guide linear slide rails through a connecting bracket; the lower rework table and the upper rework table share a group of guide linear slide rails; upper driving cylinders are installed on the workbench on both sides of the lower driving cylinder; the piston rods of the two upper driving cylinders are connected to the upper rework table Fixedly connected, hydraulic buffers opposite to the rework table are installed on the front and rear sides of the workbench; the lower rework table includes a support plate, a rework table top, a heating silicone plate, lead wires, side guard bars and a steel ruler, the support plate is fixed on the slider of the guiding linear slide rail, the rework table top is installed on the support plate, the rework table top is made of aluminum sheet metal, the aluminum sheet metal is bent downward on all sides to provide a mounting portion, the mounting portion is locked to the support plate by screws, a heating silicone plate is pasted on the bottom surface of the rework table top, the heating silicone plate is energized by the lead wires, a side guard bar for positioning the battery string is installed on one side of the rework table top, and a steel ruler for employees to confirm the spacing between battery cells is installed on the other side of the rework table top; the structure of the upper rework table is the same as that of the lower rework table.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] The device has a compact structure and stable operation. It can integrate loading, transfer, detection, repair, output and buffering. After loading NG strings, the NG battery strings are repaired manually at the repair station. The equipment automatically completes the battery string detection and handling actions, and provides the repaired OK battery strings according to the requirements of the subsequent string-swinging machine. It has a high degree of automation and a fast repair rhythm. It is suitable for half-cell modules in the photovoltaic industry and is used for online manual repair of battery strings. Multiple NG battery strings can be placed manually at one time.

[0017] The equipment is equipped with two independent operating stations, which can distinguish different battery strings and load them according to A / B strings;

[0018] Position the battery string in two directions: the positioning block positions the long side of the battery string, and the cross cursor positions the short side of the battery string, ensuring that it is transferred to the EL detection area, and the EL fixture can accurately press the leads for detection;

[0019] The rework station has a preheating function, the temperature can be adjusted within an appropriate range, and the upper and lower rework stations can be switched to ensure the rework rhythm. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1It is a structural schematic diagram of a battery string EL repair machine.

[0021] Figure 2 This is a structural schematic diagram of a battery string EL repair machine from another perspective.

[0022] Figure 3 The figure is a schematic diagram of the structure of the NG string feeding and positioning mechanism of a battery string EL repair machine.

[0023] Figure 4 A side view of the NG string loading and positioning mechanism of a battery string EL repair machine.

[0024] Figure 5 The figure is a schematic diagram of the Y and Z axis transfer mechanism structure of a battery string EL repair machine.

[0025] Figure 6 This is a partial enlarged view of the Y and Z axis transfer mechanism of a battery string EL repair machine.

[0026] Figure 7 The figure is a schematic diagram of the structure of the EL detection mechanism of a battery string EL repair machine.

[0027] Figure 8 This is a partial enlarged view of the EL detection mechanism of a battery string EL repair machine.

[0028] Fig. 9 The figure is a schematic diagram of the structure of an interchangeable double rework station mechanism of a battery string EL rework machine.

[0029] Fig.10 This is a schematic diagram of the structure of the lower rework station of a battery string EL rework machine. DETAILED DESCRIPTION

[0030] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings so that the advantages and features of the invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the protection scope of the present invention.

[0031] See also Figures 1 to 10 , the embodiment of the present invention includes:

[0032] A battery string EL rework machine comprises a frame 1, an NG string loading and positioning mechanism 2, a Y and Z axis transfer mechanism 3, an EL detection mechanism 4, an interchangeable double rework table mechanism 5, a battery string conveying mechanism 6, a foot pedal 7 and an EL display 8. A double-station NG string loading and positioning mechanism 2 is installed on the working rear side of the frame 1, a Y and Z axis transfer mechanism 3 is installed on the frame 1 above the NG string loading and positioning mechanism 2, the Y and Z axis transfer mechanism 3 moves the NG string to an EL detection mechanism 4 arranged on the workbench for testing, an interchangeable double rework table mechanism 5 for receiving NG products is installed on the workbench on the front side of the EL detection mechanism 4, a battery string conveying mechanism 6 for receiving OK products is installed on the workbench on the rear side of the EL detection mechanism 4, a foot pedal 7 is arranged on the front side of the frame 1, and an EL display 8 electrically connected to the EL detection mechanism 4 is installed on the frame 1.

[0033] The NG string loading positioning mechanism 2 includes an NG string box loading tray 21, an OK string box tray 22, a cross laser 23 and a positioning bar 24. The NG string box loading tray 21 and the OK string box tray 22 are arranged on a workbench. A cross laser 23 is installed on the frame 1 above the NG string box loading tray 21. The cross laser 23 emits a cross cursor positioning ray for locating the short side position of the battery string toward the NG string box loading tray 21. A positioning bar 24 for locating the long side position of the battery string is installed on one side of the long side direction of the NG string box loading tray 21. The positioning bar 24 is provided with an inclined surface on the side facing the battery string. The inclined surface prevents the battery string from scratching the bar and causing hidden cracks during the rising process of the suction cup taking the string.

[0034] The Y and Z axis transfer mechanism 3 includes a Y axis gear rack drive module 31, a transfer frame 32, a Z axis servo drive module 33, a grabbing profile 34, a suction cup mounting plate 35 and a suction cup 36. The Y axis gear rack drive module 31 is arranged on the frame 1. The Y axis gear rack drive module 31 drives the transfer frame 32 to move in the horizontal Y axis direction. The transfer frame 32 is installed with a Z axis servo drive module 33. The Z axis servo drive module 33 drives the grabbing profile 34 to move in the vertical direction of the Z axis. The lower end array of the grabbing profile 34 is installed with a suction cup mounting plate 35. Suction cups 36 are installed at the two protruding ends of the suction cup mounting plate 35. The suction cup mounting plate 35 is provided with a mounting waist-shaped hole for adjusting the mounting position of the suction cup 36. The relative distance between the two suction cups 36 is adjustable, which is suitable for battery strings of different widths.

[0035] The Y-axis gear rack drive module 31 includes a Y-axis linear slide 311, a transfer plate 312, a motor mounting frame 313, a reduction motor 314, a gear 315, a rack 316, a pad 317 and a guide drag chain 318. The two Y-axis linear slides 311 are installed on the frame 1. The transfer plate 312 is installed on the slider of the Y-axis linear slide 311. The two transfer plates 312 are equipped with a transfer frame 32. One of the transfer plates 312 is equipped with a motor mounting frame 313, and the reduction motor 314 is installed on the motor mounting frame 314. The reduction motor 314 drives the gear 315 to rotate. A rack 316 meshing with the gear 315 is provided below the gear 315. The rack 316 is installed on the frame 1 through the pad 317, and the other transfer plate 312 is connected to the frame 1 through the guide drag chain 318.

[0036] The Z-axis servo drive module 33 includes a Z-axis mounting plate 331, a servo electric cylinder 332, a lifting plate 333, a guide shaft 334, a guide sleeve 335, a limit bolt 336 and a pressure sensor 337. The Z-axis mounting plate 331 is installed at the bottom of the transfer rack 32. The servo electric cylinder 332 is installed on the Z-axis mounting plate 331. The lifting plate 333 is installed on the piston rod of the servo electric cylinder 332. Two guide shafts 334 are installed on the lifting plate 333. The Z-axis mounting plate 331 is installed with a guide sleeve 335 that cooperates with the guide shaft 334. The Z-axis mounting plate 331 is installed with a vertically arranged limit bolt 336, and the lifting plate 333 is installed with a pressure sensor 337.

[0037] The EL detection mechanism 4 includes a supporting profile 41, a camera holder 42, an EL camera 43, a movable adjustment component 44 and an EL test fixture component 45. The supporting profile 41 is arranged on a workbench, two camera holders 42 are installed on the supporting profile 41, an EL camera 43 is installed on the camera holder 42, two movable adjustment components 44 are arranged above the EL camera 43, an EL test fixture component 45 is installed on the adjustment push plate 443 of the movable adjustment component 44, the distance between the two EL test fixture components 45 is adjusted according to the length of the battery string, and a waist-shaped hole 420 for adjusting the installation position is provided on the camera holder 42.

[0038] The movable adjustment component 44 includes a linear slide rail 441, a mounting sheet metal 442, an adjustment push plate 443, a locking screw 444 and a baffle 445. The side ends of the two parallel linear slide rails 441 are fixed to the frame 1 through the mounting sheet metal 442. An adjustment push plate 443 is installed on the slider of the linear slide rail 441. A locking screw 444 is vertically installed on the adjustment push plate 443. The locking screw 444 is opposite to the linear slide rail 441. The position of the adjustment push plate 443 on the linear slide rail 441 is manually adjusted and the locking screw 444 is manually adjusted to lock. Baffles 445 for preventing falling are installed at both ends of the linear slide rail 441.

[0039] The EL test fixture assembly 45 includes a bottom plate 451, an EL lower power-on fixture 452, a spring 45, an EL upper power-on fixture 454, a top plate 455 and a positioning card plate 456. The bottom plate 451 is installed on two relatively adjusting push plates 443. The bottom plate 451 is installed with the EL lower power-on fixture 452, which is connected to the EL upper power-on fixture 454 above it through the spring 45. The top plate 455 is installed on the upper end of the EL upper power-on fixture 454, and the positioning card plate 456 is installed on the upper end of the top plate 455. The upper end of the positioning card plate 456 is provided with a positioning card slot 4560 for positioning and cooperating with the grabbing profile. The EL lower power-on fixture 452 and the EL upper power-on fixture 454 are externally connected to the EL industrial computer, and the EL display 8 displays the test results.

[0040] The interchangeable double rework table mechanism 5 includes a guide linear slide 51, a lower rework table 52, a lower driving cylinder 53, an upper rework table 54, a connecting bracket 55, an upper driving cylinder 56 and an oil pressure buffer 57. Two mutually parallel guide linear slides 51 are arranged on a workbench. The lower rework table 52 is installed on the sliders of the two guide linear slides 51. The lower driving cylinder 53 is installed on the workbench. The piston rod of the lower driving cylinder 53 is fixedly connected to the lower rework table 52. An upper rework table 54 is arranged above the lower rework table 52. The upper rework table 54 is fixedly connected to another group of sliders on the two guide linear slides 51 through a connecting bracket 55. The lower rework table 52 and the upper rework table 54 share a group of guide linear slides 51. Upper driving cylinders 56 are installed on the workbench on both sides of the lower driving cylinder 53. The piston rods of the two upper driving cylinders 56 are fixedly connected to the upper rework table 54. Oil pressure buffers 57 are installed on the front and rear sides opposite to the rework station; the lower rework station 52 includes a support plate 521, a rework table 522, a heating silicone plate, a lead wire 523, a side stop bar 524 and a steel ruler 525. The support plate 521 is fixed on the slider of the guide linear slide rail 51, and the rework table 522 is installed on the support plate 521. The rework table 522 is made of aluminum sheet metal. The aluminum sheet metal is bent downward around and provided with a mounting portion 5221. The mounting portion 5221 is screwed to the support plate 521. A heating silicone plate is pasted on the bottom surface of the rework table 522, and the heating silicone plate is energized through the lead wire 523. A side stop bar for locating the battery string is installed on one side of the rework table 522, and a steel ruler 525 for employees to confirm the spacing between battery cells is installed on the other side of the rework table 522; the structure of the upper rework table 54 is the same as that of the lower rework table 52.

[0041] When the EL repair machine for a battery string of the present invention is working, the NG battery string box is manually placed on the NG battery string box loading tray 21, and the NG battery string is accurately positioned by the cross cursor positioning ray emitted by the cross laser 23 and the positioning bar 24, and the error is within the allowable range. The positioning bar 24 is designed with a suitable inclined surface to prevent the battery string from scratching the positioning bar 24 and causing hidden cracks during the ascending process of the suction cup to take the string. The Y and Z axis transfer mechanism 3 moves the NG battery string to the EL detection mechanism 4 for detection, and the positioning card slot 4560 at the upper end of the positioning card mounting plate 456 clamps the grabbing profile 34. The NG battery string adsorbed by the suction cup 36 is located between the two EL test fixture assemblies 45, and the lead wire on the NG battery string is located between the EL lower power fixture 452 and the EL upper power fixture 454. The Z axis servo drive module 33 drives the grabbing profile 34 to move vertically along the Z axis. Move to the right, at this time, the EL upper power-on clamp 454 moves down, and the lead-out wire is clamped by the upper and lower power-on clamps of the EL, and the EL industrial computer starts power-on detection, and transmits the detection result to the EL display 8 and displays it. After the detection is completed, the Y, Z axis transfer mechanism 3 transfers the battery string to the upper and lower rework tables of the interchangeable double rework table mechanism 5, and the rework table is switched to the outside, and the manual rework is performed standing on the foot pedal 7, such as replacing damaged battery cells, processing poor welding of the string welding machine, and cleaning up contamination. After the rework is OK, the OK string is switched to the inside of the equipment with the rework table, and the OK battery string is moved from the Y, Z axis transfer mechanism 3 to the EL detection mechanism 4 for detection. If the detection is OK, it is transferred and transported to the battery string conveying mechanism 6 for output or placed on the OK string box tray 22 for cache. If the detection is NG, it continues to be placed on the rework table, and the above operations are repeated until the detection is OK or scrapped.

[0042] The present invention discloses an EL repair machine for battery strings. After NG battery strings are centrally loaded, the NG battery strings are repaired manually at a repair station. The equipment automatically completes battery string detection and handling actions, and provides OK battery strings after repair according to the requirements of a subsequent string-swinging machine. The battery strings can be distinguished and loaded according to A / B strings, and the battery strings can be positioned in two directions. Leads can be accurately pressed together for detection. The repair station has a preheating function, and the upper and lower rework stations can be switched to ensure the repair rhythm.

[0043] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A battery string EL repair machine, characterized by: The battery string EL rework machine includes a frame, an NG string loading and positioning mechanism, a Y and Z axis transfer mechanism, an EL detection mechanism, an interchangeable double rework table mechanism, a battery string conveying mechanism, a foot pedal and an EL display. A double-station NG string loading and positioning mechanism is installed on the working rear side of the frame. The frame above the NG string loading and positioning mechanism is installed with a Y and Z axis transfer mechanism. The Y and Z axis transfer mechanism moves the NG string to the EL detection mechanism set on the workbench for testing. An interchangeable double rework table mechanism for receiving NG products is installed on the workbench on the front side of the EL detection mechanism. A battery string conveying mechanism for receiving OK products is installed on the workbench on the rear side of the EL detection mechanism. A foot pedal is set on the front side of the frame. An EL display electrically connected to the EL detection mechanism is installed on the frame. The NG string loading positioning mechanism includes an NG string box loading tray, an OK string box tray, a cross laser and a positioning bar. The NG string box loading tray and the OK string box tray are arranged on a workbench. A cross laser is installed on a frame above the NG string box loading tray. The cross laser emits a cross cursor positioning ray for locating the short side position of the battery string toward the NG string box loading tray. A positioning bar for locating the long side position of the battery string is installed on one side of the long side direction of the NG string box loading tray. The positioning bar is provided with an inclined surface on a side facing the battery string. The interchangeable double rework table mechanism comprises a guide linear slide rail, a lower rework table, a lower driving cylinder, an upper rework table, a connecting bracket, an upper driving cylinder and a hydraulic buffer; two mutually parallel guide linear slide rails are arranged on the workbench; the lower rework table is installed on the sliders of the two guide linear slide rails; a lower driving cylinder is installed on the workbench; a piston rod of the lower driving cylinder is fixedly connected to the lower rework table; an upper rework table is arranged above the lower rework table; the upper rework table is fixedly connected to another group of sliders on the two guide linear slide rails through a connecting bracket; the lower rework table and the upper rework table share a group of guide linear slide rails; upper driving cylinders are installed on the workbench on both sides of the lower driving cylinder; the piston rods of the two upper driving cylinders are fixedly connected to the upper rework table The workbench is connected, and hydraulic buffers opposite to the rework table are installed on the front and rear sides of the workbench; the lower rework table includes a support plate, a rework table top, a heating silicone plate, lead wires, side guard bars and a steel ruler, the support plate is fixed on the slider of the guiding linear slide rail, the rework table top is installed on the support plate, the rework table top is made of aluminum sheet metal, the aluminum sheet metal is bent downward around and has a mounting portion, the mounting portion is locked to the support plate by screws, a heating silicone plate is pasted on the bottom surface of the rework table top, the heating silicone plate is energized by the lead wires, a side guard bar for positioning the battery string is installed on one side of the rework table top, and a steel ruler for employees to confirm the spacing between battery cells is installed on the other side of the rework table top; the structure of the upper rework table is the same as that of the lower rework table.

2. A battery string EL repair machine according to claim 1, characterized in that: The Y and Z axis transfer mechanism includes a Y axis rack and pinion drive module, a transfer frame, a Z axis servo drive module, a grabbing profile, a suction cup mounting plate and a suction cup. The Y axis rack and pinion drive module is arranged on the frame. The Y axis rack and pinion drive module drives the transfer frame to move horizontally in the Y axis direction. The transfer frame is equipped with a Z axis servo drive module. The Z axis servo drive module drives the grabbing profile to move in the vertical direction of the Z axis. A suction cup mounting plate is installed in an array at the lower end of the grabbing profile. Suction cups are installed at both protruding ends of the suction cup mounting plate. The suction cup mounting plate is provided with mounting waist-shaped holes for adjusting the mounting position of the suction cup.

3. A battery string EL repair machine according to claim 2, characterized in that: The Y-axis gear rack drive module includes a Y-axis linear slide, a transfer plate, a motor mounting frame, a reduction motor, a gear, a rack, a pad and a guide drag chain. Two Y-axis linear slides are installed on the frame, and a transfer plate is installed on the slider of the Y-axis linear slide. The transfer frame is installed on the two transfer plates. One of the transfer plates is installed with a motor mounting frame on which a reduction motor is installed. The reduction motor drives the gear to rotate. A rack meshing with the gear is provided under the gear. The rack is installed on the frame through a pad, and the other transfer plate is connected to the frame through a guide drag chain.

4. A battery string EL repair machine according to claim 2, characterized in that: The Z-axis servo drive module includes a Z-axis mounting plate, a servo electric cylinder, a lifting plate, a guide shaft, a guide sleeve, a limit bolt and a pressure sensor. The Z-axis mounting plate is installed at the bottom of the transfer rack, the servo electric cylinder is installed on the Z-axis mounting plate, the lifting plate is installed on the piston rod of the servo electric cylinder, two guide shafts are installed on the lifting plate, the Z-axis mounting plate is installed with a guide sleeve matching the guide shaft, the Z-axis mounting plate is installed with a vertically arranged limit bolt, and the pressure sensor is installed on the lifting plate.

5. The battery string EL repair machine according to claim 1, characterized in that: The EL detection mechanism includes a supporting profile, a camera holder, an EL camera, a movable adjustment component and an EL test fixture component. The supporting profile is arranged on a workbench, two camera holders are installed on the supporting profile, an EL camera is installed on the camera holder, two movable adjustment components are arranged above the EL camera, an EL test fixture component is installed on the adjustment push plate of the movable adjustment component, the distance between the two EL test fixture components is adjusted according to the length of the battery string, and a waist-shaped hole for adjusting the installation position is provided on the camera holder.

6. A battery string EL repair machine according to claim 5, characterized in that: The movable adjustment component includes a linear slide rail, a mounting sheet metal, an adjustment push plate, a locking screw and a baffle. The side ends of two parallel linear slide rails are fixed to the frame through the mounting sheet metal. An adjustment push plate is installed on the slider of the linear slide rail. A locking screw is vertically installed on the adjustment push plate. The locking screw is opposite to the linear slide rail. Baffles for preventing falling are installed at both ends of the linear slide rail.

7. The battery string EL repair machine according to claim 5, characterized in that: The EL test fixture assembly includes a bottom plate, an EL lower power-on fixture, a spring, an EL upper power-on fixture, a top plate and a positioning card mounting plate. The bottom plate is installed on two relatively adjusting push plates. The EL lower power-on fixture is installed on the bottom plate. The EL lower power-on fixture is connected to the EL upper power-on fixture above it through a spring. A top plate is installed on the upper end of the EL upper power-on fixture. A positioning card mounting plate is installed on the upper end of the top plate. The upper end of the positioning card mounting plate is provided with a positioning card slot for positioning that cooperates with the grabbing profile. The EL lower power-on fixture and the EL upper power-on fixture are externally connected to an EL industrial computer, and the EL display displays the test results.

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