Polishing and grinding device for maintaining electrode column of solid-state battery

Abstract

The invention belongs to the technical field of polishing equipment, and particularly relates to a polishing and grinding device for solid-state battery electrode column maintenance, which comprises a processing table and a controller mounted on one side of the end face of the processing table, and further comprises two grinding discs, the two grinding discs are both arranged above the processing table, the processing table is provided with a driving unit, and the driving unit is connected with the controller. The driving unit drives the two grinding discs to rotate, and the opposite ends of the two grinding discs are each provided with two semi-annular grinding sand discs. The two ends of the solid-state battery electrode columns can be synchronously polished and ground, crossed polishing and grinding lines can be formed at the ends of the electrode columns, the surface flatness deviation of the electrode columns is effectively reduced, the polishing and grinding efficiency and quality are improved, the polishing and grinding pressure on the electrode columns can be flexibly regulated and controlled according to the contact resistance of the ends of the electrode columns, and the polishing and grinding efficiency is improved. Meanwhile, whether polishing and grinding of the electrode column are finished or not can be automatically judged based on the contact resistance of the electrode column, and whether a polishing piece needs to be replaced or not is calculated.

Description

Technical Field

[0001] The invention belongs to the technical field of polishing equipment, and in particular relates to a polishing device for maintaining a solid-state battery electrode column. Background Art

[0002] By polishing the electrode column of the solid-state battery, the bad layer on the surface of the electrode column can be removed, the flatness and conductivity can be restored, the resistance can be reduced, the charging and discharging performance of the solid-state battery can be improved, the service life can be extended, and the stability and reliability of the solid-state battery can be guaranteed.

[0003] At present, the conventional battery electrode column is susceptible to corrosion by liquid electrolyte during use, causing the conductivity of the electrode column to gradually deteriorate, which may even affect the normal use of the battery. Therefore, the electrode column needs to be maintained and polished, such as a power battery electrode column maintenance polishing device disclosed in patent announcement number CN213531872U. However, the electrode column of a solid-state battery is different from the electrode column of a conventional battery. During use, it is not susceptible to corrosion by the solid electrolyte, and the overall performance will remain relatively stable.

[0004] However, during the production of solid-state batteries, since the electrode columns are prepared separately, in order to prevent the electrode columns from being oxidized before assembly, their surfaces are generally coated with an anti-oxidation coating. Then, before assembling the electrode columns, the anti-oxidation coating at both ends of the electrode columns is generally polished and removed (especially the end where the electrode column is connected to the solid-state battery cell). This can reduce the resistance at the connection end between the electrode column and the solid-state battery cell, thereby avoiding excessive contact resistance, which leads to excessive heat generation at the contact position between the solid-state battery cell and the electrode column (due to the high charging and discharging power of solid-state batteries and concentrated energy, even a smaller contact resistance can easily lead to excessive heat generation). When polishing the electrode column before assembly, the electrode column is generally polished at both ends in two actions, which is inefficient. Secondly, since the polishing turntable rotates in one direction, the polishing abrasive always maintains a single track in contact with the electrode column, which will result in poor flatness of the electrode column surface, insufficient removal of the anti-oxidation coating or the oxidized layer, and poor use effect. Summary of the invention

[0005] The purpose of the present invention is to provide a polishing device for maintaining a solid-state battery electrode column in view of the above-mentioned problems.

[0006] To achieve the above object, the present invention adopts the following technical scheme: A polishing device for maintaining a solid-state battery electrode column, comprising a processing table and a controller installed on one side of the end surface of the processing table, and also comprising:

[0007] Two grinding discs are arranged above the processing table. The processing table is equipped with a driving unit, and the driving unit drives the two grinding discs to rotate. Two semi-annular grinding discs are installed at the opposite ends of the two grinding discs, and the two semi-annular grinding discs on the same side are enclosed together to form a ring shape;

[0008] A mounting plate is arranged above the processing table, and one end of the mounting plate extends between the two grinding plates. A plurality of electrode column mounting holes are provided on the end surface of the mounting plate. The processing table is provided with a transmission mechanism, and the driving unit drives the mounting plate to rotate through the transmission mechanism.

[0009] A pressurized polishing unit is disposed between the two polishing discs, and the pressurized polishing unit can absorb the two polishing discs and move them toward each other;

[0010] An electrode column detection unit is arranged above the processing table;

[0011] A recording and resistance adjustment unit is installed on the end surface of the processing table, and the electrode column detection unit is electrically connected to the recording and resistance adjustment unit through a controller, and the recording and resistance adjustment unit is electrically connected to the pressure polishing unit through the controller;

[0012] A stop trigger unit is arranged below the processing table and is used to remind personnel that the polishing work is finished.

[0013] Preferably, the driving unit includes a driving shaft rotatably arranged on the end surface of the processing table, the two grinding discs are slidably mounted on the outside of the driving shaft, the inner walls of the two grinding discs are fixedly mounted with sliders, and the shaft walls of the driving shafts are provided with sliding grooves matching the sliders, a driving motor is fixedly mounted on the bottom of the processing table, and the output end of the driving motor is transmission-connected to the driving shaft, and the driving motor is electrically connected to the controller.

[0014] Preferably, the transmission mechanism includes a protective cover fixedly mounted on the end surface of the processing table, the drive shaft is rotatably connected to the top of the protective cover, a transmission gear assembly is rotatably provided inside the protective cover, and the transmission gear assembly is transmission-connected to the drive shaft through a belt drive assembly, a rotating rod is fixedly mounted on the bottom of the mounting plate, and the rotating rod is rotatably connected to the end surfaces of the processing table and the protective cover, and the rotating rod is transmission-connected to the drive shaft through a transmission gear assembly and a belt drive assembly.

[0015] Preferably, the pressurized polishing unit includes a magnetic isolation ring fixedly mounted on the outside of the driving shaft, and the magnetic isolation ring is arranged between two grinding discs, an annular cavity is opened inside the magnetic isolation ring, and the upper and lower cavity walls of the annular cavity are opened with a plurality of through holes evenly distributed in an annular shape, a plurality of iron pillars are fixedly installed at the facing ends of the two grinding discs, and each iron pillar is slidably connected to the corresponding through hole, an annular electromagnetic plate is fixedly installed inside the annular cavity, and a plurality of supporting springs are fixedly installed between the two grinding discs and the magnetic isolation ring.

[0016] Preferably, the electrode column detection unit includes a support sleeve rotatably mounted on the outside of the rotating rod, and a U-shaped plate is fixedly installed on the side wall of the support sleeve, the U-shaped plate is arc-shaped, and the upper and lower ends of the U-shaped plate are fixedly plugged with detection electromagnetic push rods, and the telescopic ends of the two detection electromagnetic push rods are installed with arc-shaped insulating plates, and the facing ends of the two arc-shaped insulating plates are fixedly installed with arc-shaped conductive strips, and the two arc-shaped conductive strips are respectively arranged on the upper and lower sides of the mounting plate, the end surface of the protective cover is fixedly installed with a side plate, and the same reset spring is fixedly provided between the side plate and the side wall of the support sleeve, and the detection electromagnetic push rod and the two arc-shaped conductive strips are electrically connected to the controller.

[0017] Preferably, the recording resistance adjustment unit includes an insulating cover fixedly mounted on the end surface of the processing table, and two recording electromagnetic push rods are fixedly mounted inside the insulating cover, the telescopic ends of the two recording electromagnetic push rods are fixedly connected with movable insulating blocks, the side walls of the two movable insulating blocks are fixedly inserted with conductive rings, the inner wall of the insulating cover is fixedly mounted with two resistance rods, and the two resistance rods are in sliding contact with the inner walls of the corresponding conductive rings, an iron plate is fixedly mounted at a position between the two recording electromagnetic push rods inside the insulating cover, magnetic isolation blocks are fixedly mounted on the opposite ends of the two movable insulating blocks, and electromagnetic blocks are fixedly mounted on the side walls of the two magnetic isolation blocks, the ends of the two electromagnetic blocks are in sliding contact with the side walls of the iron plate, the two arc-shaped conductive strips are electrically connected to the recording electromagnetic push rods through the controller, and the two electromagnetic blocks are electrically connected to the controller.

[0018] Preferably, the stop trigger unit includes an air pump arranged under the processing table, the air outlet end of the air pump is equipped with an air outlet pipe, and the pipe end of the air outlet pipe is equipped with a hollow block, both side walls of the hollow block are provided with exhaust holes, and the first normally open solenoid valves are installed inside the two exhaust holes, and two pressure switches are fixedly installed on the inner wall of the insulating cover on the side away from the recording electromagnetic push rod, and the two pressure switches are electrically connected to the corresponding first normally open solenoid valves through the controller, and an air pressure automatic switch is installed inside the hollow block, and the controller reminds the personnel that the polishing work is completed according to the electrical signal output by the air pressure automatic switch.

[0019] Preferably, a collecting box is fixedly installed at the lower end of the processing table, and an adsorption tube is fixedly inserted into the upper end surface of the collecting box, the air inlet end of the adsorption tube extends to one side of the staggered position of the mounting plate and the grinding plate, the air suction end of the air pump is connected to the interior of the collecting box, and a filter is fixedly provided inside the collecting box between the air suction end of the air pump and the adsorption tube.

[0020] Preferably, a shunt pipe is fixedly inserted into the pipe wall of the outlet pipe, a normally closed solenoid valve is installed inside the shunt pipe, a second normally open solenoid valve is installed inside the outlet pipe near the outlet end, a gas flow meter is installed at the outlet end of the shunt pipe, the conductive ring and the resistor rod are electrically connected to the normally closed solenoid valve and the second normally open solenoid valve through a controller, and the gas flow meter is electrically connected to the controller.

[0021] Compared with the existing technology, the advantages of a polishing device for maintaining solid-state battery electrode columns are:

[0022] 1. Through the cooperation of the processing table, controller, grinding disc, drive unit, semi-circular grinding sand disc, mounting disc, electrode column mounting hole, transmission mechanism and pressurized polishing unit, the upper and lower ends of multiple solid-state battery electrode columns can be polished at the same time through two grinding discs, and the electrode column and the grinding disc are driven to rotate in opposite directions through the mounting disc, so that the electrode column moves in an arc shape on the grinding disc. With the rotation of the grinding disc, cross-polishing lines can be formed at the end of the electrode column, which effectively reduces the flatness deviation of the electrode column surface and improves the polishing efficiency and polishing quality.

[0023] 2. Through the cooperation of the electrode column detection unit and the recording and adjusting resistance unit, the grinding pressure of the electrode column can be adjusted in real time based on the contact resistance of the electrode column during the grinding process, thereby further improving the polishing efficiency of the electrode column and maintaining the suitability of the polishing of the electrode column, thereby achieving a good polishing effect.

[0024] 3. Through the set stop trigger unit, the polishing work can be automatically stopped after the polishing of all electrode columns is completed, thus reducing time waste. Secondly, with the cooperation of the set collection box, adsorption tube and filter, the waste chips in the polishing process can be adsorbed and collected. At the same time, with the set shunt pipe, normally closed solenoid valve, second normally open solenoid valve and gas flow meter, the personnel can be reminded to replace the semi-annular grinding sand disc. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a structural schematic diagram of a polishing device for maintaining a solid-state battery electrode column provided by the present invention;

[0026] Figure 2 It is a schematic cross-sectional structure diagram of a polishing device for maintaining a solid-state battery electrode column provided by the present invention;

[0027] Figure 3 It is a schematic diagram of the connection structure of two semi-annular grinding sand discs of a polishing device for maintaining a solid-state battery electrode column provided by the present invention;

[0028] Figure 4 The present invention provides a solid-state battery electrode column maintenance polishing device Figure 2 A magnified view of the structure of part A;

[0029] Figure 5 It is a structural schematic diagram of an electrode column detection unit of a polishing device for maintaining a solid-state battery electrode column provided by the present invention;

[0030] Figure 6 It is a schematic diagram of a top view of the connection structure of a U-shaped plate and a rotating rod of a polishing device for maintaining a solid-state battery electrode column provided by the present invention;

[0031] Figure 7 It is a schematic diagram of the internal top view structure of an insulating cover of a polishing device for maintaining a solid-state battery electrode column provided by the present invention;

[0032] Figure 8 It is a schematic diagram of the internal structure of a collection box of a polishing device for maintaining a solid-state battery electrode column provided by the present invention;

[0033] Fig. 9 The present invention is a schematic diagram of the top view of the grinding disc and the mounting disc of a polishing device for maintaining a solid-state battery electrode column provided by the present invention.

[0034] In the figure: 1 processing table, 2 controller, 3 grinding disc, 4 driving unit, 41 driving shaft, 42 slider, 43 slide, 44 driving motor, 5 semi-circular grinding sand disc, 6 mounting disc, 7 electrode column mounting hole, 8 transmission mechanism, 81 protective cover, 82 transmission gear assembly, 83 belt transmission assembly, 84 rotating rod, 9 pressurized polishing unit, 91 magnetic isolation ring, 92 annular cavity, 93 through hole, 94 iron column, 95 annular electromagnetic plate, 96 supporting spring, 10 electrode column detection unit, 101 supporting sleeve, 102 U-shaped plate, 103 detection electromagnetic push rod, 104 arc insulating plate, 105 arc conductive strip, 106 side plate, 107 return spring, 11 record resistance adjustment unit, 111 insulation cover, 112 record electromagnetic push rod, 113 movable insulation block, 114 conductive ring, 115 resistance rod, 116 iron plate, 117 magnetic isolation block, 118 electromagnetic block, 12 stop trigger unit, 121 air pump, 122 air outlet pipe, 123 hollow block, 124 exhaust hole, 125 first normally open electromagnetic valve, 126 pressure switch, 127 air pressure automatic switch, 13 collection box, 14 adsorption tube, 15 filter, 16 diversion pipe, 17 normally closed electromagnetic valve, 18 second normally open electromagnetic valve, 19 gas flow meter. DETAILED DESCRIPTION

[0035] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0036] like Figure 1-Figure 9 As shown, a polishing device for maintaining a solid-state battery electrode column comprises a processing table 1 and a controller 2 installed on one side of the end face of the processing table 1, and also comprises: two grinding discs 3, both of which are arranged above the processing table 1, the processing table 1 is equipped with a driving unit 4, and the driving unit 4 drives the two grinding discs 3 to rotate, two semi-annular grinding sand discs 5 are installed on the opposite ends of the two grinding discs 3, and the two semi-annular grinding sand discs 5 on the same side are together enclosed in a ring shape, the driving unit 4 comprises a driving shaft 41 rotatably arranged on the end face of the processing table 1, the two grinding discs 3 are slidably sleeved on the outer side of the driving shaft 41, the inner walls of the two grinding discs 3 are fixedly installed with sliders 42, and the shaft walls of the driving shaft 41 are provided with sliding grooves 43 matching the sliders 42, a driving motor 44 is fixedly installed on the bottom of the processing table 1, and the output end of the driving motor 44 is transmission-connected to the driving shaft 41, and the driving motor 44 is electrically connected to the controller 2.

[0037] The mounting disk 6 is arranged above the processing table 1, and one end of the mounting disk 6 extends between the two grinding disks 3. A plurality of electrode column mounting holes 7 are provided on the end surface of the mounting disk 6. The processing table 1 is provided with a transmission mechanism 8. The driving unit 4 drives the mounting disk 6 to rotate through the transmission mechanism 8. The transmission mechanism 8 includes a protective cover 81 fixedly mounted on the end surface of the processing table 1. The driving shaft 41 is rotationally connected to the top of the protective cover 81. A transmission gear assembly 82 is provided for internal rotation of the protective cover 81, and the transmission gear assembly 82 is transmission-connected to the driving shaft 41 through a belt transmission assembly 83. A rotating rod 84 is fixedly mounted on the bottom of the mounting disk 6, and the rotating rod 84 is rotationally connected to the end surfaces of the processing table 1 and the protective cover 81. The rotating rod 84 is transmission-connected to the driving shaft 41 through the transmission gear assembly 82 and the belt transmission assembly 83.

[0038] The pressurized polishing unit 9 is arranged between the two polishing discs 3, and the pressurized polishing unit 9 can adsorb the two polishing discs 3 and move toward each other. The pressurized polishing unit 9 includes a magnetic isolation ring 91 fixedly mounted on the outside of the driving shaft 41, and the magnetic isolation ring 91 is arranged between the two polishing discs 3. An annular cavity 92 is opened inside the magnetic isolation ring 91, and the upper and lower cavity walls of the annular cavity 92 are opened with a plurality of through holes 93 evenly distributed in an annular shape. A plurality of iron pillars 94 are fixedly installed at the facing ends of the two polishing discs 3, and each iron pillar 94 is slidably connected to the corresponding through hole 93. An annular electromagnetic plate 95 is fixedly installed inside the annular cavity 92, and a plurality of support springs 96 are fixedly provided between the two polishing discs 3 and the magnetic isolation ring 91.

[0039] The electrode column detection unit 10 is arranged above the processing table 1, and the electrode column detection unit 10 includes a support sleeve 101 rotatably sleeved on the outside of the rotating rod 84, and a U-shaped plate 102 is fixedly installed on the side wall of the support sleeve 101, and the U-shaped plate 102 is arc-shaped. The upper and lower ends of the U-shaped plate 102 are fixedly plugged with detection electromagnetic push rods 103, and the telescopic ends of the two detection electromagnetic push rods 103 are installed with arc-shaped insulating plates 104, and the facing ends of the two arc-shaped insulating plates 104 are fixedly installed with arc-shaped conductive strips 105, and the two arc-shaped conductive strips 105 are respectively arranged on the upper and lower sides of the mounting plate 6, and the end surface of the protective cover 81 is fixedly installed with a side plate 106, and the same reset spring 107 is fixedly provided between the side plate 106 and the side wall of the support sleeve 101, and the detection electromagnetic push rod 103 and the two arc-shaped conductive strips 105 are electrically connected to the controller 2.

[0040] The recording and adjusting resistance unit 11 is installed on the end surface of the processing table 1, and the electrode column detection unit 10 is electrically connected to the recording and adjusting resistance unit 11 through the controller 2. The recording and adjusting resistance unit 11 is electrically connected to the pressure polishing unit 9 through the controller 2. The recording and adjusting resistance unit 11 includes an insulating cover 111 fixedly installed on the end surface of the processing table 1, and two recording electromagnetic push rods 112 are fixedly installed inside the insulating cover 111. The telescopic ends of the two recording electromagnetic push rods 112 are fixedly connected with movable insulating blocks 113. The side walls of the two movable insulating blocks 113 are fixedly plugged with conductive rings 114. Two resistance rods 115 are fixedly installed on the inner wall of the insulating cover 111, and the two resistance rods 115 are in sliding contact with the inner walls of the corresponding conductive rings 114. The interior of the insulating cover 111 is located between the two recording electromagnetic push rods. An iron plate 116 is fixedly installed at the position between 112, and a magnetic isolation block 117 is fixedly installed at the opposite ends of the two movable insulating blocks 113, and an electromagnetic block 118 is fixedly installed on the side walls of the two magnetic isolation blocks 117. The ends of the two electromagnetic blocks 118 are in sliding contact with the side walls of the iron plate 116, and the two arc-shaped conductive strips 105 are electrically connected to the recording electromagnetic push rod 112 through the controller 2. The two electromagnetic blocks 118 are electrically connected to the controller 2. After the electromagnetic block 118 is energized, it will immediately be adsorbed and fixed to the iron plate 116. At this time, the telescopic end of the recording electromagnetic push rod 112 cannot retract and move. In order to prevent the electromagnetic block 118 and the iron plate 116 from being worn and affecting the adsorption and fixing effect, an elastic structure is installed at the electromagnetic block 118 so that the electromagnetic block 118 has a certain telescopic displacement.

[0041] The stop trigger unit 12 is arranged below the processing table 1, and is used to remind the personnel that the polishing work is finished. The stop trigger unit 12 includes an air pump 121 arranged below the processing table 1, and an air outlet pipe 122 is installed at the air outlet end of the air pump 121, and a hollow block 123 is installed at the pipe end of the air outlet pipe 122. Exhaust holes 124 are opened on both side walls of the hollow block 123, and first normally open solenoid valves 125 are installed inside the two exhaust holes 124. Two pressure switches 126 are fixedly installed on the inner wall of the side of the insulating cover 111 away from the recording electromagnetic push rod 112. The two pressure switches 126 are electrically connected to the corresponding first normally open solenoid valves 125 through the controller 2. An air pressure automatic switch 127 is installed inside the hollow block 123, and the controller 2 reminds the personnel that the polishing work is finished according to the electrical signal output by the air pressure automatic switch 127. Under the action of air pressure, the moving contact of the air pressure automatic switch 127 will be pushed closed by air, and when the air pressure is restored, the moving contact will immediately rebound and reset.

[0042] A collecting box 13 is fixedly installed at the lower end of the processing table 1, and an adsorption tube 14 is fixedly inserted on the upper end surface of the collecting box 13, the air inlet end of the adsorption tube 14 extends to one side of the staggered position of the mounting plate 6 and the grinding plate 3, the suction end of the air pump 121 is connected to the interior of the collecting box 13, and a filter screen 15 is fixedly provided inside the collecting box 13 between the suction end of the air pump 121 and the adsorption tube 14, the side wall of the collecting box 13 is provided with an opening, and a cover plate is installed at the opening for transferring waste chips inside the collecting box 13.

[0043] A shunt pipe 16 is fixedly inserted into the pipe wall of the air outlet pipe 122, and a normally closed solenoid valve 17 is installed inside the shunt pipe 16. A second normally open solenoid valve 18 is installed inside the air outlet pipe 122 near the air outlet end, and a gas flow meter 19 is installed at the air outlet end of the shunt pipe 16. The conductive ring 114 and the resistor rod 115 are electrically connected to the normally closed solenoid valve 17 and the second normally open solenoid valve 18 through the controller 2. The gas flow meter 19 is electrically connected to the controller 2. The gas flow meter 19 can detect the gas flow and immediately output an electrical signal to the controller 2 after the gas flow reaches the set value. This is an existing mature technology, so it will not be elaborated here.

[0044] The operating principle of the present invention is described as follows: Insert the electrode column to be polished into each electrode column mounting hole 7 (refer to Figure 1 , Figure 1 The dotted line part is the electrode column, and the arrow direction is the plug-in direction. The electrode column can be installed by manual plug-in or by a robotic arm. When the robotic arm is installed, the robotic arm is controlled by the controller 2. The robotic arm can take and place the electrode column by receiving the command of the controller 2. Then, the controller 2 is started;

[0045] After the controller 2 is started, it will immediately control the drive motor 44 to work. The drive motor 44 can drive the two grinding discs 3 to rotate clockwise through the drive shaft 41, the slider 42 and the slide groove 43. At the same time, with the cooperation of the belt drive assembly 83 and the transmission gear assembly 82, the rotating rod 84 can drive the mounting disc 6 to rotate counterclockwise. After the controller 2 is started, the two detection electromagnetic push rods 103 are controlled to work for 1 second every 2 seconds. After the detection electromagnetic push rods 103 are energized, they will immediately push the two arc-shaped insulating plates 104 to move toward each other, so that the two arc-shaped conductive strips 105 can contact the electrode column rotated to that side (and the electrode column is located between the two arc-shaped conductive strips 105). At the same time, the controller 2 starts After the electromagnetic push rod 103 is moved, power will be simultaneously supplied to the connection circuit between the arc-shaped conductive strip 105 and the recording electromagnetic push rod 112 on the left. Since the electrode column is in contact with the two arc-shaped conductive strips 105 at this time, the connection circuit between the arc-shaped conductive strip 105, the electrode column and the recording electromagnetic push rod 112 on the left remains in a conducting state. When the roughness of the end of the electrode column is relatively large and the thickness of the anti-oxidation coating layer is relatively thick, the contact resistance of the electrode column is relatively large. At this time, the current passed into the recording electromagnetic push rod 112 on the left is relatively small, so the moving distance of the recording electromagnetic push rod 112 pushing the movable insulating block 113 on the same side is relatively small. After the controller 2 supplies power to the connection circuit of the arc-shaped conductive strip 105 for 0.5 seconds, the controller 2 will immediately That is, the electromagnetic block 118 on this side is started. At this time, the electromagnetic block 118 is magnetically fixed to the iron plate 116. When the connection circuit between the recording electromagnetic push rod 112 on the left and the arc-shaped conductive strip 105 and the electrode column is disconnected, the telescopic end of the recording electromagnetic push rod 112 on the left cannot be retracted and moved under the magnetic fixing effect between the electromagnetic block 118 and the iron plate 116, that is, the position of the conductive ring 114 on the left will not move back and reset. At the same time, since the arc-shaped conductive strip 105 is in contact with the electrode column, the support sleeve 101 rotates synchronously with the electrode column to ensure stable contact between the arc-shaped conductive strip 105 and the electrode column. At this time, the support sleeve 101 will stretch the reset spring 107, and when the detection electromagnetic push rod 103 is timed to work for 1 second After the end, since the arc-shaped conductive strip 105 is separated from the electrode column, under the action of the reset spring 107, the support sleeve 101 will drive the U-shaped plate 102 to rotate and reset immediately, until after an interval of 2 seconds, the detection electromagnetic push rod 103 is energized again, at this time, the arc-shaped conductive strip 105 will contact the next electrode column, and at the same time, the controller 2 connects the right recording electromagnetic push rod 112 with the connection circuit of the arc-shaped conductive strip 105 and the electrode column, and after powering on for 0.5 seconds, controls the right recording electromagnetic push rod 112 to be energized, and the left recording electromagnetic push rod 112 and electromagnetic block 118 and the right recording electromagnetic push rod 112 and electromagnetic block 118 are alternately connected to the connection circuit of the arc-shaped conductive strip 105 through the controller 2;

[0046] As for the electrode column that has just been separated from the arc-shaped conductive strip 105, the electrode column will immediately enter the position between the two grinding discs 3, and the controller 2 will connect the connection circuit of the conductive ring 114 and the resistor rod 115 corresponding to the electrode column with the annular electromagnetic plate 95 (for example, when the electrode column contacts the arc-shaped conductive strip 105, the controller 2 controls the connection circuit of the recording electromagnetic push rod 112 on the left to connect with the electrode column. At this time, the controller 2 controls the connection circuit of the conductive ring 114 and the resistor rod 115 on the left to connect with the annular electromagnetic plate 95). For the electrode column with a large contact resistance, since the contact resistance of the electrode column is large, the current passed into the corresponding recording electromagnetic push rod 112 is small, so the distance that the conductive ring 114 is pushed and displaced is small. At this time, the length of the resistor rod 115 connected to the connection circuit between the conductive ring 114 and the annular electromagnetic plate 95 is short, so the connection circuit resistance of the resistor rod 115, the conductive ring 114 and the annular electromagnetic plate 95 is small, and the connection circuit between the conductive ring 114 and the annular electromagnetic plate 95 is short. 5 has a relatively large current inside. At this time, the magnetic attraction force generated by the annular electromagnetic plate 95 on each iron column 94 is relatively large, so the two grinding discs 3 drive the semi-annular grinding sand disc 5 to apply a relatively large grinding pressure on the electrode column. Therefore, for an electrode column with a larger contact resistance, the grinding pressure of the semi-annular grinding sand disc 5 on the electrode column is greater, and the polishing removal amount of the electrode column end is increased, thereby ensuring the grinding efficiency of the electrode column. On the contrary, reducing the grinding pressure on the electrode column can not only avoid excessive grinding of the electrode column, but also reduce the wear of the semi-annular grinding sand disc 5. The conductive ring 114 and the resistor rod 115 on the left side and the conductive ring 114 and the resistor rod 115 on the right side are alternately connected to the connection circuit of the annular electromagnetic plate 95 through the controller 2. When the electrode column being polished leaves the grinding sand disc, the next electrode column begins to enter the position between the two grinding discs 3. At this time, the controller 2 controls the annular electromagnetic plate 95 to connect with the corresponding conductive ring 114 and the resistor rod 115.

[0047] After the controller 2 is started, it will synchronously control the air pump 121 to work. The air suction end of the air pump 121 can generate negative pressure suction at the air inlet end of the adsorption tube 14 through the collection box 13, so that the waste chips generated by grinding can be sucked into the collection box 13 through the adsorption tube 14 as much as possible, and the waste chips are trapped in the collection box 13 through the filter 15, and the air delivered by the air pump 121 is discharged through the air outlet pipe 122 and the two exhaust holes 124 of the hollow block 123;

[0048] As the electrode columns are polished, the roughness and unevenness at the ends of each electrode column, the anti-oxidation coating, etc. are polished away, and the contact resistance of the electrode column is qualified. At this time, the current passed into the recording electromagnetic push rod 112 is large enough, so the displacement distance of the movable insulating block 113 is large enough. At this time, the movable insulating block 113 will press and close the moving contact of the pressure switch 126 on the same side. At this time, the controller 2 will control the first normally open solenoid valve 125 corresponding to the closed pressure switch 126 to be energized and closed, so the air delivered to the inside of the hollow block 123 by the air pump 121 can only be discharged through the other exhaust hole 124. When all the electrode columns are polished, the two movable insulating blocks 113 will simultaneously press and close the pressure switch 126 on the same side. At this time, the first normally open solenoid valves 125 in the two exhaust holes 124 are The air pump 121 will close, so the air delivered to the inside of the hollow block 123 by the air pump 121 cannot be discharged, and the air pressure inside the hollow block 123 will rise rapidly. Under the action of the air pressure, the moving contact of the air pressure automatic switch 127 will be pushed closed by the air, and after the controller 2 receives the closing electrical signal of the air pressure automatic switch 127, it will immediately control the drive motor 44 to stop working (an angle detection sensor is installed on the drive shaft 41. When the controller 2 receives the closing electrical signal of the air pressure automatic switch 127, the controller 2 will control the drive motor 44 to make the drive shaft 41 rotate to a specific angle and then stop working. The specific angle is the initial position of the drive shaft 41 when the electrode column is initially installed, which is convenient for taking out each electrode column). Then, each electrode column is taken out manually or by an external robotic arm.

[0049] During the polishing process, when the roughness of the electrode column is relatively large, the polishing pressure applied by the semi-annular polishing sand disc 5 to the electrode column is relatively large. At this time, the semi-annular polishing sand disc 5 is subjected to greater wear, and when the roughness of the electrode column is relatively large, the length of the resistor rod 115 connected to the conductive ring 114, the normally closed solenoid valve 17 and the second normally open solenoid valve 18 is relatively short, so the current passed into the resistor rod 115, the conductive ring 114, the normally closed solenoid valve 17 and the second normally open solenoid valve 18 is relatively large. At this time, since a large current is passed through the normally closed solenoid valve 17, the electromagnetic component adsorption valve plate inside it is opened to a large extent, while the electromagnetic component adsorption valve plate inside the second normally open solenoid valve 18 is opened to a smaller extent due to a large current passed through it, so most of the airflow passing through the outlet pipe 122 will be discharged through the shunt pipe 16. Therefore, after passing There is more gas at the gas flow meter 19. On the contrary, as the electrode column is gradually polished and smooth, the wear of the semi-annular grinding sand disk 5 gradually decreases. At this time, the gas passing through the gas flow meter 19 is relatively small. When the gas flow meter 19 detects that the gas flow has reached the set value, the gas flow meter 19 will output an electrical signal to the controller 2, and the controller 2 will immediately issue an alarm prompt through its own alarm module (such as a buzzer). After receiving the alarm information, the staff should immediately replace the semi-annular grinding sand disk 5. Among them, since the electrode column is polished, the valve plate of the normally closed solenoid valve 17 is opened to a small extent at this time. Therefore, when the two first normally open solenoid valves 125 are energized and closed, the air pressure inside the hollow block 123 will still rise rapidly, and will not affect the normal closure of the automatic air pressure switch 127.

[0050] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A polishing device for maintaining a solid-state battery electrode column, comprising a processing table (1) and a controller (2) mounted on one side of an end surface of the processing table (1), characterized in that: Also includes: Two grinding discs (3) are both arranged above the processing table (1); the processing table (1) is equipped with a driving unit (4), and the driving unit (4) drives the two grinding discs (3) to rotate; two semi-annular grinding discs (5) are installed at the opposite ends of the two grinding discs (3), and the two semi-annular grinding discs (5) on the same side are enclosed together to form a ring shape; A mounting plate (6) is arranged above the processing table (1), and one end of the mounting plate (6) extends between the two grinding plates (3); a plurality of electrode column mounting holes (7) are provided on the end surface of the mounting plate (6); a transmission mechanism (8) is installed on the processing table (1), and the driving unit (4) drives the mounting plate (6) to rotate via the transmission mechanism (8); A pressurized polishing unit (9) is arranged between the two polishing discs (3), and the pressurized polishing unit (9) is capable of adsorbing the two polishing discs (3) to move toward each other; An electrode column detection unit (10) is arranged above the processing table (1); A recording and resistance adjustment unit (11) is installed on the end surface of the processing table (1), and the electrode column detection unit (10) is electrically connected to the recording and resistance adjustment unit (11) through the controller (2), and the recording and resistance adjustment unit (11) is electrically connected to the pressure polishing unit (9) through the controller (2); A stop trigger unit (12) is arranged below the processing table (1) and is used to remind personnel that the polishing work is finished.

2. A solid-state battery electrode column maintenance polishing device according to claim 1, characterized in that: The driving unit (4) comprises a driving shaft (41) rotatably arranged on the end surface of the processing table (1); the two grinding discs (3) are slidably sleeved on the outer side of the driving shaft (41); the inner walls of the two grinding discs (3) are fixedly mounted with sliders (42); and the shaft wall of the driving shaft (41) is provided with sliding grooves (43) matching the sliders (42); a driving motor (44) is fixedly mounted on the bottom of the processing table (1); and the output end of the driving motor (44) is transmission-connected to the driving shaft (41); and the driving motor (44) is electrically connected to the controller (2).

3. A solid-state battery electrode column maintenance polishing device according to claim 2, characterized in that: The transmission mechanism (8) comprises a protective cover (81) fixedly mounted on the end surface of the processing table (1); the driving shaft (41) is rotatably connected to the top of the protective cover (81); a transmission gear assembly (82) is rotatably provided inside the protective cover (81); and the transmission gear assembly (82) is transmission-connected to the driving shaft (41) via a belt transmission assembly (83); a rotating rod (84) is fixedly mounted on the bottom of the mounting plate (6); and the rotating rod (84) is rotatably connected to the end surfaces of the processing table (1) and the protective cover (81); and the rotating rod (84) is transmission-connected to the driving shaft (41) via the transmission gear assembly (82) and the belt transmission assembly (83).

4. A solid-state battery electrode column maintenance polishing device according to claim 2, characterized in that: The pressurized polishing unit (9) includes a magnetic isolation ring (91) fixedly mounted on the outside of the driving shaft (41), and the magnetic isolation ring (91) is arranged between two grinding discs (3). An annular cavity (92) is provided inside the magnetic isolation ring (91), and the upper and lower cavity walls of the annular cavity (92) are provided with a plurality of through holes (93) evenly distributed in an annular shape. A plurality of iron pillars (94) are fixedly installed at the facing ends of the two grinding discs (3), and each iron pillar (94) is slidably connected to the corresponding through hole (93). An annular electromagnetic plate (95) is fixedly installed inside the annular cavity (92), and a plurality of supporting springs (96) are fixedly installed between the two grinding discs (3) and the magnetic isolation ring (91).

5. A solid-state battery electrode column maintenance polishing device according to claim 3, characterized in that: The electrode column detection unit (10) comprises a support sleeve (101) rotatably sleeved on the outside of a rotating rod (84), and a U-shaped plate (102) is fixedly mounted on the side wall of the support sleeve (101), the U-shaped plate (102) is arc-shaped, and detection electromagnetic push rods (103) are fixedly plugged at both upper and lower ends of the U-shaped plate (102), and arc-shaped insulating plates (104) are installed at the telescopic ends of the two detection electromagnetic push rods (103), and the two arc-shaped insulating plates (104) are fixedly plugged at both upper and lower ends of the U-shaped plate (102). 4) An arc-shaped conductive strip (105) is fixedly installed at one end facing each other, and the two arc-shaped conductive strips (105) are respectively arranged on the upper and lower sides of the mounting plate (6), a side plate (106) is fixedly installed on the end surface of the protective cover (81), and a same return spring (107) is fixedly installed between the side plate (106) and the side wall of the support sleeve (101), and the detection electromagnetic push rod (103) and the two arc-shaped conductive strips (105) are electrically connected to the controller (2).

6. A solid-state battery electrode column maintenance polishing device according to claim 5, characterized in that: The recording resistance adjustment unit (11) comprises an insulating cover (111) fixedly mounted on the end surface of the processing table (1), and two recording electromagnetic push rods (112) are fixedly mounted inside the insulating cover (111), the telescopic ends of the two recording electromagnetic push rods (112) are fixedly connected to movable insulating blocks (113), the side walls of the two movable insulating blocks (113) are fixedly plugged with conductive rings (114), the inner wall of the insulating cover (111) is fixedly mounted with two resistance rods (115), and the two resistance rods (115) are in sliding contact with the inner walls of the corresponding conductive rings (114), and the insulating An iron plate (116) is fixedly installed at a position between the two recording electromagnetic push rods (112) inside the cover (111), a magnetic isolation block (117) is fixedly installed at the opposite ends of the two movable insulating blocks (113), and an electromagnetic block (118) is fixedly installed on the side walls of the two magnetic isolation blocks (117), the ends of the two electromagnetic blocks (118) are in sliding contact with the side walls of the iron plate (116), the two arc-shaped conductive strips (105) are electrically connected to the recording electromagnetic push rod (112) through the controller (2), and the two electromagnetic blocks (118) are electrically connected to the controller (2).

7. A solid-state battery electrode column maintenance polishing device according to claim 6, characterized in that: The stop trigger unit (12) comprises an air pump (121) arranged below the processing table (1); an air outlet pipe (122) is installed at the air outlet end of the air pump (121); and a hollow block (123) is installed at the pipe end of the air outlet pipe (122); exhaust holes (124) are provided on both side walls of the hollow block (123); and first normally open electromagnetic valves (125) are installed inside the two exhaust holes (124); two pressure switches (126) are fixedly installed on the inner wall of the insulating cover (111) on a side away from the recording electromagnetic push rod (112); the two pressure switches (126) are electrically connected to the corresponding first normally open electromagnetic valves (125) through the controller (2); an air pressure automatic switch (127) is installed inside the hollow block (123); and the controller (2) reminds the personnel that the polishing work is finished according to the electrical signal output by the air pressure automatic switch (127).

8. A solid-state battery electrode column maintenance polishing device according to claim 7, characterized in that: A collecting box (13) is fixedly mounted on the lower end of the processing table (1), and an adsorption tube (14) is fixedly plugged into the upper end surface of the collecting box (13); an air inlet end of the adsorption tube (14) extends to one side of the staggered position of the mounting plate (6) and the grinding plate (3); an air suction end of the air pump (121) is connected to the interior of the collecting box (13), and a filter screen (15) is fixedly mounted inside the collecting box (13) between the air suction end of the air pump (121) and the adsorption tube (14).

9. A solid-state battery electrode column maintenance polishing device according to claim 7, characterized in that: A shunt pipe (16) is fixedly inserted into the pipe wall of the outlet pipe (122), a normally closed solenoid valve (17) is installed inside the shunt pipe (16), a second normally open solenoid valve (18) is installed inside the outlet pipe (122) near the outlet end, a gas flow meter (19) is installed at the outlet end of the shunt pipe (16), the conductive ring (114) and the resistor rod (115) are electrically connected to the normally closed solenoid valve (17) and the second normally open solenoid valve (18) through the controller (2), and the gas flow meter (19) is electrically connected to the controller (2).

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