CN110890513A

CN110890513A - Sodium-nickel battery melt filling and testing line

Info

Publication number: CN110890513A
Application number: CN201811032658.5A
Authority: CN
Inventors: 祝海仕; 王伟; 马瑞
Original assignee: Bozhon Precision Industry Technology Co Ltd
Current assignee: Bozhon Precision Industry Technology Co Ltd
Priority date: 2018-09-05
Filing date: 2018-09-05
Publication date: 2020-03-17

Abstract

The invention relates to a sodium-nickel battery melt filling and testing line, which comprises a code scanning feeding robot, a melt filling machine, a filling position feeding and discharging robot, a sealing nail welding machine, a cooling furnace and a testing discharging machine, wherein the code scanning feeding robot is connected with the sealing nail welding machine; the method is characterized in that: the code scanning and feeding robot is provided with a battery clamping jaw and an eyebolt clamping jaw; a code scanning weighing defective product collecting station is also arranged between the code scanning feeding robot and the filling station feeding and discharging robot; a filling position feeding and discharging robot clamps a battery from a code scanning and weighing defective product collecting station and conveys the battery to the melt filling machine for filling; transferring the poured battery to the sealing nail welding machine; the sealing nail welding machine is butted with the cooling furnace; the outlet of the cooling furnace is provided with the test blanking machine; the air filter also comprises a control system and an air filtering system; the control system is connected to each unit through a serial bus on the basis of industrial Ethernet connection; the air filtering system comprises a filtering fan and a filtering medium which are arranged on each unit.

Description

Sodium-nickel battery melt filling and testing line

Technical Field

The invention relates to the field of battery filling processing equipment, in particular to a sodium-nickel battery melt filling and testing line.

Background

The traditional battery melt filling device is characterized in that a melt is pumped into a storage barrel behind the filling device, the melt is pumped into a measuring cup of the filling device through a pressure pump, redundant melt flows back to an acid storage barrel, and a new batch of melt can be placed into the storage barrel after the melt in the storage barrel is used up. The battery needs to be clamped and positioned in the process of melt filling, and then the interface is communicated with a filling mechanism through a filling port and is filled through a pressure pump. The price increasing structure for clamping and positioning the battery needs to perform accurate price increasing control on the battery so as to ensure that the battery can be in seamless butt joint on the filling structure.

The existing melt filling machine belongs to a semi-automatic structure, can fill the melt into a supplied material battery only by manual assistance, not only consumes manpower, has low efficiency and is difficult to maintain, but also is not safe enough for operators. For example, the chinese invention patent "a valve-regulated lead-acid battery filling system", application No. 201210087632.7, discloses a device comprising an acid storage tank and a plurality of quantitative measuring cups, wherein the quantitative measuring cups are placed in the acid storage tank and used for injecting acid into the valve-regulated lead-acid battery; the acid cooling device is connected with the filling device through an acid inlet pipe and is used for cooling the acid liquor to be within the threshold range of the valve-controlled lead-acid battery; and the acid pumping device is connected with the filling device through one end of the acid outlet pipe, and the other end of the acid pumping device is connected with the acid cooling device and used for pumping the acid liquid in the acid storage barrel of the filling device back to the acid cooling device. Although this structure can be fast effectual carry out the battery and fill, because sealed, pressure control's mode is simple, its filling effect is also not ideal, and the battery is inside because the space is narrow and small, and atmospheric pressure control unstability can lead to unable complete filling. Moreover, because the location of battery adopts general tool, its cooperation mode is simple, and the battery can't play sealed butt joint effect at the in-process that fills, brings a lot of inconveniences to filling.

The traditional battery testing equipment can quantitatively and accurately measure some basic parameters of the battery, can measure parameters such as open-circuit voltage, shape and size of the battery, greatly facilitates the production and pre-sale and post-sale service work of the battery, can visually judge the performance and the quality of the battery by adopting a plurality of simple steps, has the function of quick screening and improves the production efficiency.

The existing testing machine belongs to a semi-automatic structure, can complete testing on incoming batteries only by manual assistance, and is labor-consuming, low in efficiency and not safe enough for operators. For example, the invention patent of china, "square battery shaping detector", application No. 201511030561.7, discloses a mechanical structure including loading, unloading, battery appearance test, and battery performance test. Although the purpose of efficiently detecting the battery products is achieved, the structure of the device is complicated in equipment structure, feeding and processing are inconvenient, and the operation efficiency of the device is difficult to improve.

Disclosure of Invention

The invention relates to a sodium-nickel battery melt filling and testing line, which comprises a code scanning feeding robot, a melt filling machine, a filling position feeding and discharging robot, a sealing nail welding machine, a cooling furnace and a testing discharging machine, wherein the code scanning feeding robot is connected with the test feeding machine; the code scanning and feeding robot is provided with a battery clamping jaw and an eyebolt clamping jaw; a code scanning weighing defective product collecting station is also arranged between the code scanning feeding robot and the filling station feeding and discharging robot; a filling position feeding and discharging robot clamps a battery from a code scanning and weighing defective product collecting station and conveys the battery to the melt filling machine for filling; transferring the poured battery to the sealing nail welding machine; the sealing nail welding machine is butted with the cooling furnace; the outlet of the cooling furnace is provided with the test blanking machine;

the air filter also comprises a control system and an air filtering system; the control system is connected to each unit through a serial bus on the basis of industrial Ethernet connection; the air filtering system comprises a filtering fan and a filtering medium which are arranged on each unit.

Preferably, the melt-pouring machine comprises at least: a measurement chamber and a battery; each sealable container is butted with a pressure generating assembly; the measuring chamber is butted with the battery through a melt nozzle;

the seal nail welding machine at least comprises a first rotating disc, a second rotating disc and a third rotating disc, wherein the first rotating disc is arranged in the circumferential direction: the device comprises a first feeding robot, a sealing nail dust removal mechanism, a sealing nail feeding mechanism and a sealing nail welding mechanism;

the cooling furnace at least comprises a circulating feeding line arranged in the cooling room; an air inlet duct is arranged on the cooling room; the circulating feeding line is respectively provided with a robot for feeding and discharging materials;

the test blanking machine at least comprises a first rotary disc and a second rotary disc, wherein the first rotary disc is arranged in the circumferential direction: the device comprises a product dust removal mechanism, a thickness testing mechanism, an open-circuit voltage testing mechanism and a second feeding robot.

Preferably, the melt filling machine further comprises a positioning plate, a battery ejector rod and a positioning jig; the measuring chamber is arranged in the heat-preservation aluminum shell, and the battery is arranged in the vacuumizing sealing cover; the heat-preservation aluminum shell is also butted with a melt storage tank; a nozzle heater and a residual liquid cleaning module are arranged at the melt nozzle; the inner cavity of the positioning jig is coaxially communicated with the matching hole on the positioning plate; the positioning plate is vertically lifted by the pneumatic guide piece and is butted on the sealing container outside the battery; the upper end of the battery ejector rod penetrates through the positioning plate and is inserted into the inner cavity of the positioning jig, and the lower end of the battery ejector rod is movably matched with the middle part of the connecting rod; one end of the connecting rod is vertically pushed and pulled by aerodynamic force.

Preferably, the pressure generating assembly comprises a nitrogen tank and a vacuum pump; the nitrogen tank is connected with the vacuum pump in parallel and then is connected to the sealable container; a vacuum switch valve is arranged on the vacuum pump; a nitrogen switch valve is arranged on the nitrogen tank; the nozzle heater is a heating wire structure; a brush plate made of Teflon material extends out of the residual liquid cleaning module to clean the melt nozzle; the residual liquid cleaning module comprises a third cylinder and a Teflon brush plate; a third cylinder pushes a Teflon brush plate; the Teflon brush plate is matched with and penetrates through the vacuumizing sealing cover through a sealing piece.

Preferably, a plurality of jigs are arranged on the first rotating disc on the sealing nail welding machine; the sealing nail dust removal mechanism comprises an iron wire brush and a first dust absorption pipe; the sealing nail feeding mechanism comprises a vibrating disc, a direct vibrating feeder, a material grabbing module and a linear module; the sealing nail welding mechanism comprises a laser welding mechanism driven by a three-axis system moving module; the laser welding mechanism comprises a vision module, a prepressing module and a laser welding module.

Preferably, the circulating feeding line is formed by butting a full charging basket cooling line and an empty charging basket return line; a steering table for reversing feeding is arranged at the joint of the full charging basket cooling line and the empty charging basket return line; the steering surface of the steering table is connected with the feeding table or the discharging table; the feeding platform and the discharging platform are respectively matched with a feeding robot or a discharging robot; an inductor is arranged at the steering table; the feeding platform and the discharging platform are both provided with forward and backward feeding components.

Preferably, the test blanking machine further comprises a non-defective product blanking belt and a defective product blanking belt; a jig is also arranged on the second turntable; the product dust removing mechanism comprises a second dust collecting pipe and a dust removing fan; the thickness testing mechanism comprises a Z-axis linear module and a thickness measuring sensor; open circuit voltage testing mechanism includes voltage probe of vertical propelling movement of slip table cylinder

Preferably, a code scanning gun, a defective product collecting position, an eyebolt collecting box and a weighing position before pouring are arranged on the code scanning weighing defective product collecting station; four groups are arranged in the weighing positions before the perfusion.

Preferably, a plurality of melt filling machines are arranged on two sides of the feeding and discharging robot at the filling position; the melt filling machine is uniformly distributed on two sides of the feeding and discharging robot on the filling position.

The invention has the beneficial effects that: the utility model provides a sodium-nickel battery fuse-element is filled and test wire, it has following advantage:

1. compared with the existing equipment, the equipment has the advantages that the productivity and yield are greatly improved, and meanwhile, the manpower is effectively saved.

2. The whole line is controlled by a bus, and modules such as a servo system, a vision system, a robot and the like are connected by an industrial Ethernet, so that a high-speed and stable data communication function is realized, and the quick acquisition of equipment information and all control functions of each work station can also be realized. The specific work station is controlled by a substation or a remote I/O module, and the self-contained data tracking system has the functions of monitoring the operation quality in real time and tracing the complete product data and can be connected with an MES system.

3. The whole line has compact structure and reasonable layout, and corresponding safety protection measures are designed for areas with potential safety hazards; in addition, the production line is convenient for manual inspection and later maintenance during operation.

4. Aiming at harmful gas and dust generated during operation of partial stations, a high-efficiency filtering and dedusting system is designed, and corresponding protective measures are designed for places with potential safety hazards.

Drawings

FIG. 1 is a block diagram of a melt filling and testing line for a sodium nickel battery according to the present invention;

FIG. 2 is a block diagram of a melt-pouring machine;

FIG. 3 is a block diagram of a pour positioning module in a melt-filling machine;

FIG. 4 is a cross-sectional view of a pour positioning module in a melt-pouring machine;

FIG. 5 is an enlarged view of a portion of the structure of FIG. 4;

FIG. 6 is a block diagram of a melt pouring module in the melt pouring machine;

FIG. 7 is a schematic diagram of the construction of a pouring module in the melt pouring machine;

FIG. 8 is a block diagram of a seal nail welder;

FIG. 9 is a structure diagram of the cooperation of each station and the corresponding mechanism in the seal nail welding machine;

FIG. 10 is a block diagram of a seal nail mouth dust removal station in a seal nail welder;

FIG. 11 is a block diagram of a seal nail loading station in a seal nail welder;

FIG. 12 is a block diagram of a seal welding station in a seal nail welder;

FIG. 13 is a structural view of a cooling furnace;

FIG. 14 is a butt-joint layout of full basket cooling lines and empty basket return lines in a cooling furnace;

FIG. 15 is a block diagram of a test feeder;

FIG. 16 is a specific layout of a test blanking machine;

FIG. 17 is a block diagram of a dust removal mechanism in the test feeder;

FIG. 18 is a block diagram of a thickness measuring mechanism in the test blanking machine;

FIG. 19 is a block diagram of an open circuit voltage test mechanism in the test blanking machine;

FIG. 20 is a block diagram of a loading and unloading robot at a filling station;

FIG. 21 is a block diagram of a sweep weigh bad product collection station;

the parts in the drawings are numbered as follows: 1. a melt filling machine; 11. a perfusion module; 12. a perfusion positioning module; 13. a melt storage tank; 15. a discharge pipe; 16. filling a control cabinet; 17. a touch screen; 18. an alarm light; 110. adjusting a valve; 111. a measurement chamber; 112. a melt nozzle; 1121. a nozzle heater; 1122. a temperature controller; 113. a nitrogen tank; 114. a vacuum pump; 115. a vacuum switching valve; 116. a nitrogen switch valve; 117. a heat-insulating aluminum shell; 118. a vacuum seal cover; 119. a melt switch valve; 11121. positioning a plate; 122. positioning a jig; 123. a battery ejector rod; 124. a telescopic shield; 125. a connecting rod; 126. a first bearing; 127. a support; 128. a second cylinder; 129. a seal ring; 1210. a first cylinder; 1211. a guide bar; 1212. a linear bearing; 1213. a guide sleeve; 1214. a tension spring; 1215. a second bearing; 131. a third cylinder; 132. a Teflon brush plate; 2. a sealing nail welding machine; 21. a first turntable; 22. a feeding robot; 23. a battery loading station; 24. sealing the nail mouth dust removal station; 25. a sealing nail feeding station; 26. sealing the welding station; 27. a robot material taking station; 241. an iron wire brush; 242. a dust collection pipe; 251. a vibrating pan; 252. a direct vibration feeder; 253. a material grabbing module; 254. a linear module; 261. an X-axis module; 262. a Y-axis module; 263. a Z-axis module; 264. a vision module; 265. a pre-pressing module; 266. a laser welding module; 31. a cooling room; 32. an exhaust fan; 33. a full basket cooling line; 34. an empty basket return line; 35. a feeding table; 36. a blanking table; 37. a robot; 38. an air inlet; 39. a cooling room control cabinet; 4. a blanking test machine; 41. a second feeding robot; 42. a dust removal mechanism; 43. a thickness testing mechanism; 44. an open circuit voltage testing mechanism; 45. a second turntable; 48. a control panel; 49. a display; 414. a good product blanking belt; 415. a defective product discharging belt; 416. a transfer basket; 418. a material receiving basket; 421. a dust collection pipe; 431. a Z-axis linear module; 432. a thickness measuring sensor; 433. a cross beam; 441. a sliding table cylinder; 442. a voltage probe; 443. a test board; 5. an air filtering system 6, a filling station loading and unloading robot; 61. a base; 62. a claw disk; 63. a battery clamping jaw; 64. an eyebolt jaw; 7. a code scanning and weighing defective product collecting station; 7. a code scanning and weighing defective product collecting station; 71. a code scanning gun; 72. a defective product collection station; 73. an eyebolt collection box; 74. weighing before perfusion; 8. a safety barrier; 9. a wire-passing ladder.

Detailed Description

The following detailed description of the preferred embodiments of the present invention, taken in conjunction with the accompanying drawings, will make the advantages and features of the invention easier to understand by those skilled in the art, and thus will clearly and clearly define the scope of the invention.

Referring to fig. 1 to 21, the present invention includes:

a sodium-nickel battery melt filling and testing line comprises a code scanning feeding robot 10, a melt filling machine 1, a filling position feeding and discharging robot, a sealing nail welding machine 2, a cooling furnace 3, a testing discharging machine 4, a control system and an air filtering system 5. The control system is connected to each unit through a serial bus on the basis of industrial Ethernet connection, the whole line is controlled by the bus, and modules such as a servo system, a vision system, a robot and the like are connected by the industrial Ethernet, so that a high-speed and stable data communication function is realized, and quick acquisition of equipment information and all control functions of each work station can also be realized. The specific work station is controlled by a substation or a remote I/O module, and the self-contained data tracking system has the functions of monitoring the operation quality in real time and tracing the complete product data and can be butted with an MES system

The air filtration system comprises a filter fan and a filter medium which are arranged on each unit, and is designed with a high-efficiency filtration and dust removal system aiming at harmful gas and dust generated during part of station operation, and corresponding protective measures are designed for places with potential safety hazards.

Sweep a yard material loading robot 6 and be six robots, its bottom is provided with base 61, and its arm end is provided with a claw dish 62, and claw dish 62 can be rotatory around its centre of a circle junction, has set up battery clamping jaw 63 and screw clamping jaw 64 with eyes on claw dish 62 respectively, and in this embodiment, battery clamping jaw 63 and screw clamping jaw 64 with eyes can once only press from both sides and get 4 work pieces respectively.

A code scanning and weighing defective product collecting station 7 is further arranged between the code scanning and feeding robot and the filling position feeding and discharging robot, a code scanning gun 71, a defective product collecting position 72, an eyebolt collecting box 73 and a filling front weighing position 74 are arranged on the code scanning and weighing defective product collecting station 7, and four groups of weighing positions 74 are arranged in parallel before filling.

Fill position unloading robot 6 and get the battery and deliver to and fill on the fuse-element filling machine 1 from sweeping sign indicating number defective products collection station 7 upward clamp, fill position unloading robot 6 and be ordinary six robots, it has possessed rotation and clamping function, can set for according to the procedure and rotate. A plurality of melt filling machines 1 are arranged on two sides of the feeding and discharging robot 6 at the filling position; the melt filling machines 1 are uniformly distributed on two sides of the feeding and discharging robot on the filling position. Safety guardrails 8 are arranged around the mechanical feeding and feeding structure and the high-temperature pouring structure, so that the operation safety of the equipment is improved.

The melt filling machine 1 comprises a filling module 11, a filling positioning module 12 and a melt storage tank 13. The battery is clamped on the filling positioning module, and the filling module 11 is used for filling the melt into the battery. The perfusion module 11 and the perfusion positioning module 12 are both arranged on the frame, the perfusion positioning module 12 is installed on a workbench of the frame, and the perfusion module 11 is suspended above the perfusion positioning module 12 through the frame. The frame is formed by section bar and panel beating concatenation, and one side of frame is fuse-element storage jar 13, and fuse-element storage jar 13 is connected to filling module 11 through fuse-element discharging pipe 15. The other side of the rack is a filling control cabinet 16, the filling control cabinet 16 is connected with each electric control unit through a circuit, and a touch screen 17 and an alarm lamp 18 are also arranged on the filling control cabinet. The control circuit of the melt filling machine 1 is controlled by a bus, the filling modules are connected by an industrial Ethernet, the high-speed and stable data communication function is realized, and the self-contained data tracking system has the functions of monitoring the operation quality in real time and tracing the complete product data and can be butted with an MES system.

An air filtering system 5 is also arranged in the frame, and the air filtering system 5 covers the perfusion module 11 and the perfusion positioning module 12; the air filtration system 5 includes at least a filter fan and a filter medium. In the embodiment, a common air filtering system is selected and used, and the adsorption filtration is carried out through a filter fan, an air pipe and a filter screen.

The pouring positioning module comprises a positioning plate 121, a positioning fixture 122, a battery ejector rod 123 and a telescopic shield 124. A positioning fixture 122 is fixed on the positioning plate 121, in this embodiment, the positioning plate 121 is a rectangular plate, and the positioning fixture 122 is disposed at the center of the positioning plate 121. The center of the positioning plate 121 is provided with a vertical matching hole, a battery is placed in the inner cavity of the positioning jig 122, and the matching hole is coaxially communicated with the inner cavity of the positioning jig.

The battery post rod 123 is fitted in the fitting hole through the guide sleeve 1213, the upper end of the battery post rod 123 passes through the guide sleeve and is inserted into the inner cavity of the positioning jig 122, and the lower end of the battery post rod 123 is movably fitted to the middle of the connecting rod 125. The middle part of the connecting rod 125 is provided with a long circular groove, the lower end of the battery ejector rod 123 is provided with a first bearing 126, and the first bearing 126 is matched in the long circular groove. A support 127 and a second cylinder 128 are further disposed on the lower surface of the positioning plate 121, and the support 127 and the second cylinder 128 are respectively located at two sides of the mating hole. One end of the connecting rod 125 is hinged to the support 127, and the other end thereof is connected to the piston rod of the second cylinder 128 through a second bearing 1215. The second cylinder 128 pushes and pulls the end of the connecting rod 125 vertically, the other end of the connecting rod 125 rotates around the joint, and the battery post rod 123 movably fitted in the middle of the connecting rod 125 can generate a relatively flexible vertical pushing and pulling motion, which can prevent the hard contact between the battery and the nozzle. Not only eliminates the potential damage of hard contact to the battery, but also leads the contact sealing performance of the battery and the nozzle to be better.

The positioning plate 121 is also movable as a whole, and the positioning plate 121 is used for butting against the corresponding sealable container, which must have a sealing connection effect. Meanwhile, a sealing ring 129 is disposed on the upper surface of the positioning plate 121, and the sealing ring 129 is centered on the positioning jig 122 and is embedded on the surface of the positioning plate 121.

The positioning plate 121 is vertically lifted by the first cylinder 1210, and the positioning plate 121 is also vertically movably guided by the guide 1211. Two guide rods 1211 are disposed on the lower surface of the positioning plate 121, and linear bearings 1212 are fitted over the guide rods 1211. The linear bearing 1212 is fixed relatively, and the guide rod 1211 drives the positioning plate 121 to vertically move up and down. The piston rod of the first cylinder 1210 acts directly on the lower surface of the positioning plate 121, and when the first cylinder 1210 is pushed up, the positioning plate 121 rises with all the members fixed thereto. In order to make the battery ejector rod 123 have a certain pretightening force and restoring force, a tension spring 1214 is arranged between the guide sleeve 1213 and the lower end of the electromagnetic ejector rod 123.

In order to protect the transmission and guide structure, a telescopic shield sleeve 124 is mounted on the lower side of the positioning plate, and the upper port of the telescopic shield 124 is fixedly connected with the positioning plate 121.

The perfusion module 11 includes a measurement chamber 111, a melt nozzle 112 and a pressure generating assembly. The cell is clamped in the positioning fixture 122, the measuring chamber 111 is butted with the cell through a melt nozzle, and the melt in the measuring chamber 111 is injected into the cell by the pressure generating assembly.

The nitrogen tank 113 and the vacuum pump 114 are connected in parallel to form a pressure generating assembly, the vacuum pump 114 is provided with a vacuum switch valve 115, and the nitrogen tank 113 is provided with a nitrogen switch valve 116.

The measuring chamber 111 and the battery are respectively arranged in the inner cavity of the sealable container: the measuring chamber 111 is a quantitative filling chamber, measuring chambers of different scales can be selected according to the type of the battery and the processing requirements, and a sealable container outside the measuring chamber 111 is a heat-insulating aluminum shell 117; the sealable container outside the cell is an evacuated sealed enclosure 118. The heat-insulating aluminum shell 117 and the vacuumizing sealing cover 118 are respectively connected with a pressure generating assembly, the heat-insulating aluminum shell 117 and the pressure generating assembly are matched to realize the conveying of the melt and the pressure filling of the melt, and the vacuumizing sealing cover 118 and the pressure generating assembly are matched to realize the maintenance of the battery filling environment, so that air is prevented from entering and polluting the melt.

The measuring chamber 111 is fixedly arranged in the heat-insulating aluminum shell 117 in a coaxial position relationship, a pressure generating assembly on the heat-insulating aluminum shell 117 is butted on the top of the heat-insulating aluminum shell 117, and the melt storage tank 13 is communicated with the bottom of the heat-insulating aluminum shell 117 through a melt discharge pipe 15. And a level switch 1123 is also provided in the heat-insulating aluminum shell 117, and the level switch 118 must be higher than the measuring chamber 111 to ensure that the entire measuring chamber 111 can be filled with melt when the melt is loaded.

The lower end face of the heat-insulating aluminum shell 117 is fixedly connected with a nozzle assembly, and the axis of the nozzle assembly is provided with a melt nozzle 112. The melt nozzle 112 is provided with a melt switch valve 119 and a regulating valve 110, and the melt nozzle 112 leads to a battery in an evacuated sealed housing 118. The melt nozzle 112 is provided with a nozzle heater 1121 and a temperature controller 1122, the nozzle heater 1121 is mainly composed of an electric heating wire, and the temperature controller 1122 is also provided in contact with the melt nozzle. Because the melt can be poured into the battery only when the temperature of the melt is 200 +/-2 ℃ and the melt can be solidified when the temperature of the melt is 167 ℃, the whole system is provided with a heating and temperature control device and corresponding heat preservation measures to meet the characteristic of high-temperature pouring of the melt.

The vacuum-pumping sealing cover 118 is coaxially sleeved outside the battery, and the upper end of the vacuum-pumping sealing cover 118 is hermetically fixed to the nozzle assembly. The lower end of the vacuumizing seal cover 118 is matched with the surface of the positioning plate 121 through the seal ring 129, and the butt joint of the melt nozzle 112 and the battery adopts a high-temperature-resistant corrosion-resistant sealing structure, so that the sealing property between the melt nozzle 112 and the battery can be improved, the leakage of melt generated due to poor sealing during pouring can be prevented, and the hidden danger of damage to the battery caused by hard contact of the melt nozzle 112 and the battery can be avoided.

A residual liquid cleaning module is also arranged on the vacuumizing sealing cover 118 and comprises a third cylinder 131 and a Teflon brush plate 132; the third cylinder 131 pushes the teflon brush plate 132; the teflon brush plate 132 fits through the evacuated seal 118 housing with a seal. The third cylinder 131 pushes the teflon brush plate 132 horizontally, and the teflon brush plate 132 automatically cleans the residual liquid at the melt nozzle 112, so as to avoid the pollution of the residual liquid to the battery and the environment.

In operation, because the temperature of the melt to be poured is 200 +/-2 ℃, the positioning lifting system of the melt pouring machine ensures the characteristic of high temperature resistance from the aspects of overall structure, standard part selection and workpiece material selection. Meanwhile, the melt to be poured has strong corrosiveness, so that good corrosion resistance is ensured in the aspects of the whole structure, the type selection of the standard part and the material selection of the workpiece.

The filled battery is transferred to the seal nail welding machine 2, the battery is clamped on the first rotating disc 21, and the first rotating disc 21 rotates and enables the battery to pass through each processing station in sequence. The first rotary table 21 is driven by servo power, the first rotary table 21 rotates around the center point, and the first rotary table 21 is arranged around the first rotary table 21 and along the rotation circumferential direction of the first rotary table 21: a battery loading station 23, a sealing nail mouth dust removal station 24, a sealing nail loading station 25, a sealing welding station 26 and a robot material taking station 27. And the sealing nail mouth dust removal station 24, the sealing nail feeding station 25 and the sealing welding station 26 are respectively provided with a sealing nail dust removal mechanism, a sealing nail feeding mechanism and a sealing nail welding mechanism.

A first feeding robot 22 is further arranged on one side of the first rotary disc 21, the first feeding robot 22 grabs the processed battery from the basket outside the lower rack, and a safety guardrail for protecting the basket and the first feeding robot 22 is further arranged on the rear side of the rack.

The turntable 21 is provided with a plurality of jigs for clamping the battery, and the jigs rotate to each station along with the turntable. This tool is common battery clamping tool, and it possesses basic location and presss from both sides tight function.

The first feeding robot 22 is also a conventional robot structure, and includes a robot arm that rotates around a base point, and a gripper is provided on the robot arm. When the first feeding robot 22 moves among the incoming basket, the battery loading station 23 and the robot taking station 27, the feeding robot 22 places the processed battery in a jig on the battery loading station 23, and the jig with the clamped battery enters the sealed nail mouth dust removing station 24, the sealed nail loading station 25 and the sealed nail welding station 26 in sequence along with the rotation of the first turntable 21 according to a path set by a program; the processed battery is rotated to the battery loading station 23 again, the first feeding robot 22 sends the processed battery to the robot material taking station 27, a jig is also arranged on the robot material taking station 27, and the battery is subjected to feeding or material taking station connection transition on the robot material taking station 27 to wait for the battery to be taken away.

Be provided with iron wire brush 241 and first dust absorption pipe 242 on sealed nail mouth dust removal station 24, iron wire brush 241 sets firmly in the tool upside with the vertical mode of axis, iron wire brush 241 and coaxial arrangement in the pivot of motor. The motor is driven by the fourth cylinder to vertically lift, and when the battery is rotated to the lower side of the iron wire brush 241, the fourth cylinder descends to enable the iron wire brush 241 to clean the battery; after cleaning, the cylinder moves upwards, and the iron wire brush 241 rises to avoid collision with the moving battery. In addition, a first dust suction pipe 242 is provided at one side of the wire brush 241, and the wire brush 241 is located at an inlet of the first dust suction pipe 242. When the iron wire brush is rotating for cleaning, the first dust suction pipe 242 sucks away dust or particles through negative pressure, thereby achieving the cleaning effect. The first dust suction pipe 242 is externally connected with a filtering and dust removing system 5, the filtering and dust removing system 5 is of a common filtering structure, and at least comprises an air duct and a filtering medium arranged in the air duct, and the filtering medium can be a filtering net, a filtering grille and the like.

The seal nail feeding station 25 is provided with a vibration disc 251, a straight vibration feeder 252, a material grabbing module 253 and a linear module 254, the vibration type components are relatively common feeding structures, the vibration disc 251 is generally used for feeding materials through a spiral cavity channel with a certain spiral angle, and small or small-sized and light-weight workpieces are conveyed forwards through vibration force. The straight vibrating feeder 252 has the same principle as the vibrating disk 251, and the feeding line is straight, so that the straight vibrating feeder achieves the functions of guiding and controlling the flow. The outlet of the vibrating plate 251 is abutted against the direct vibration feeder 252, and the direct vibration feeder 252 is transited to the linear module 254 through the material grabbing module 253. The material grabbing module 253 comprises a clamping assembly and a guiding assembly, the clamping assembly is generally a starting chuck or a starting tong, and the guiding assembly is generally implemented by a straight guiding structure through a straight rail or a guide rod or a screw rod and the like. The working process is as follows: the gripping assembly is powered to grab the material along the guide assembly and feed it to the linear module 254. Finally, linear module 254 selects the straight line feeding subassembly, generally selects rolling belt or cylinder group to realize, and the sealed nail falls on linear module one by one, and linear module continues to operate and makes sealed nail send the tool on the carousel in.

The seal nail welding station 26 is provided with a laser welding mechanism driven by a three-axis system moving module, and the three-axis system moving module comprises an X-axis module 261, a Y-axis module 262 and a Z-axis module 263. The X-axis module 261 is a horizontal X-axis slide rail which is vertically supported, and the Y-axis module 262 is matched on the X-axis slide rail through a slide block; the Y-axis module 262 also comprises a Y-axis slide rail, and the Y-axis slide rail is matched with the Z-axis module 263 through a slide block; the Z-axis module 263 includes a vertical Z-axis slide, and the laser welding mechanism is coupled to the Z-axis module via a slider. The laser welding mechanism comprises a vision module 264, a pre-pressing module 265 and a laser welding module 266; the vision module 264 includes a camera for monitoring the real-time status of the welding position and feeding back the monitoring picture thereof in time. The laser welding module 266 includes a laser generator that is aimed at the interface of the cell end and the seal pin to achieve fusion welding by laser generating a transient high temperature. The pre-pressing module 265 includes vertical flexible elasticity cylinder spare, generally chooses for use cylinder and spring cooperation, and it acts on battery tip from vertical direction, compresses tightly sealed nail and battery through the pre-pressing module in the welding process, has played the welding auxiliary effect.

The sealing nail welding machine is also connected with a control system connected with an industrial Ethernet, and the control system can be externally connected with an MES system. The control system also comprises a servo control unit, a visual feedback unit, a data communication unit and a data tracking unit. The servo control unit is used for carrying out signal control on servo power, the visual feedback unit is used for carrying out signal transmission control on a visual module in the laser welding mechanism, and the data communication unit and the data tracking unit are used for carrying out feedback control on processing data of each station. The whole equipment is controlled by a bus, the high-speed and stable data communication function is realized, and the self-contained data tracking system has the functions of monitoring the operation quality in real time and tracing the complete product data.

The sealed nail welding machine is butted with a cooling furnace, the cooling furnace comprises a cooling room 31 and an exhaust fan 32, and a full charging basket cooling line 33 and an empty charging basket return line 34 are arranged in the cooling room 31. Full charging basket cooling line 33 and empty charging basket return line 34 all include the high temperature resistant cylinder of stainless steel of setting on the platform, and full charging basket cooling line 33 and empty charging basket return line 34 are driven by servo power, and its control accuracy is higher.

The full basket cooling line 33 and the empty basket return line 34 are butted to form a closed circulating feeding line, the batteries are fed from the feeding position and are cooled at normal temperature while being fed by the full basket cooling line 33, the baskets with the stacked batteries are discharged at the discharging position of the full basket cooling line 33 terminal point, and the empty baskets are returned to the feeding position by the empty basket return line 34.

And a steering table for reversing feeding is arranged at the joint of the full-basket cooling line 33 and the empty-basket return line 34, and the steering table can change the moving direction of the conveyed object. A general steering table adopts a ball type feeding table, balls arranged at intervals are divided into two groups, each group of balls has a fixed feeding direction, and one group of balls can be suspended to realize the feeding in the other direction during reversing. Or the reversing roller is adopted to realize steering, the feeding direction is changed through the jacking roller, and the structure of the reversing roller must meet the matching requirement. Most of the reversing feeding is common, and the prior art is mature. The turning surface of the turning table is connected with the feeding table 35 or the discharging table 36 outside the cooling room 31: the function of the turning table is to change the feeding direction of the charging basket, the full basket on the full-loaded cooling basket line 33 turns to the discharging table 36, and the unloaded charging basket turns to the empty charging basket return line 34 from the discharging table 36; empty baskets are diverted from empty basket return line 34 to loading station 35 and full baskets are diverted from loading station 35 to full basket cooling line 33.

Robots 37 for clamping batteries are matched at the positions of the feeding platform 35 and the discharging platform 36, the robots at the positions of the feeding platform 35 are used for feeding, and the robots at the positions of the discharging platform 36 are used for discharging. The feeding table 35 and the discharging table 36 are both provided with forward and backward feeding components, and the forward and backward feeding components generally comprise stainless steel rollers driven by servo power. Because the charging basket is different according to the transshipment, reverse transportation power needs to be generated when the charging basket reflows.

In order to match the operation of the steering table, an inductor is arranged at the steering table and used for sensing the loading condition of the charging basket by using a visual sensing device or a weight sensing device. Therefore, when the sensor of the steering table at the loading table 35 senses an empty basket, the steering table at this position can steer the empty basket to the loading table 35, the loading table 35 is turned over, and the empty basket is conveyed to the robot for loading. Otherwise, when the sensor of the steering table at the position of the discharging table 36 senses a full-load basket, the steering table can steer the full-load basket to the discharging table 36, the discharging table 36 is turned over after discharging to enable an empty basket to flow back, at the moment, the sensor senses the empty basket, and the steering table sends the empty basket to the empty basket return line 34.

A plurality of air inlets 38 are arranged on the cooling room 31, in this embodiment, four air inlets 38 are arranged, and the exhaust fan 32 is arranged at the top of the cooling room 31, and the exhaust fan 32 extracts air from the cooling room to form convection. The air inlets 38 on the cooling room 31 are arranged along the flow direction of the full basket cooling line 33 and the empty basket return line 34, and the circulation of air is accelerated after external air enters the cooling room, so that the cooling efficiency is improved. The exhaust fan 32 is connected to a filtering and dust removing system, which at least includes a filter medium disposed in the air duct, and the filter medium includes a filter net or a filter layer.

The entry that has set up cooperation material loading platform 35 or unloading platform 36 on cooling room 31 all is provided with safety barrier around material loading platform 35 and the unloading platform 36, and its security that can ensure operational environment also can prevent the external influence to the product, ensures processing normal clear. The wire passing ladder 9 is erected above the feeding table 35, so that manual inspection and maintenance can be facilitated. A cooling room control cabinet 39 is further arranged on one side of the cooling room 31, and control circuits inside the cooling room control cabinet are connected with responses in the straight cooling room 31 and can control the equipment integrally.

And a test blanking machine 4 is arranged at an outlet of the cooling furnace 3 and comprises a feeding station, a detection station and a discharging station. The feeding station is provided with a second feeding robot 41 which can rotate around the reference axis to take the battery, and the second feeding robot 41 takes the battery out of the material basket 418 and feeds the battery into the detection station. The material loading station is surrounded by a safety guardrail with a right-angle corner, so that the safe operation index is improved. The second feeding robot 41 includes a robot arm, the lower end of the robot arm is driven by rotational power, and the upper end of the robot arm is provided with two clamping jaws, which are clamped by a transmission member and a transmission force. Two clamping jaws are arranged in parallel, and the machining efficiency can be improved in the working process.

The detection station is provided with a second rotating disc 45 which horizontally rotates by taking the circle center as a base point, and the second rotating disc 45 is arranged on a workbench. The worktable is also provided with a dust removal mechanism 42, a thickness testing mechanism 43 and an open-circuit voltage testing mechanism 44 which are distributed along the rotation circumference of the turntable. The surface of the second turntable 45 is also provided with a fixture for clamping the battery, and the battery to be tested is clamped in the fixture. The bottom of the second turntable 45 is provided with a driving force, and the second turntable 45 rotates at a fixed point and enables the battery on the jig to pass through the dust removal mechanism, the thickness testing mechanism and the open-circuit voltage testing mechanism. The workbench is also provided with a sheet metal machine cover, the sheet metal machine cover is provided with a control panel 48 and a display 49, and an operator can carry out system control on the whole machine only through the control panel 48 and the display 49. Meanwhile, an alarm lamp is matched in a control system of the equipment, once an alarm condition in a preset program occurs, the alarm lamp can give out visual alarm signals so as to facilitate operators to solve problems in time and avoid unnecessary conditions.

The dust removing mechanism 42 includes a second dust suction pipe 421 and a dust removing fan, and the second dust suction pipe 421 is fixed above the jig on the second turntable 45 through a section bar. The lower port of the second dust suction pipe 421 faces the battery, and the upper port of the second dust suction pipe 421 is connected with an air filtering system.

The thickness measuring mechanism 43 comprises a Z-axis linear module 431 and a thickness measuring sensor 432, wherein the Z-axis linear module 431 is a linear guide structure. The Z-axis linear module 431 is vertically fixed, a beam 433 is installed on the Z-axis linear module 431, and the beam 433 can slide up and down on the Z-axis linear module 431. The Z-axis linear module 431 is provided with a power capable of driving the beam 433 to ascend and descend, and the beam 433 slides along the Z-axis linear module 431 under the driving of the power. Two thickness measuring sensors 432 which are subjected to correlation induction are arranged on the cross beam 433, one thickness measuring sensor 432 is fixed at each of two ends of the cross beam 433, and when the cross beam 433 is lowered, the battery on the jig is located in the detection range of the two thickness measuring sensors 432, and the two thickness measuring sensors 432 can detect the thickness size of the battery.

The open circuit voltage testing mechanism 44 includes a voltage probe 442 vertically pushed by a slide cylinder 441, the slide cylinder 441 is vertically supported, the slide cylinder 441 pushes a testing board 443, and the voltage probe 442 is mounted on the testing board 443. When the testing device works, the sliding table cylinder 441 drives the testing plate 443 to descend to the end face of the battery on the jig, the voltage probe 442 is externally connected to voltage testing equipment, and the voltage probe can test the open-circuit voltage of the battery.

The discharging station comprises a good product discharging belt 414 and a bad product discharging belt 415, and the rotating covering surface of the second feeding robot 41 comprises a feeding station, a detection station and a storage station, so that the second feeding robot 41 can take off the finished product on the detection station and send the finished product to the corresponding belt. The good product discharging belt 414 and the defective product discharging belt 415 are arranged in parallel, the two belts lead to a manual visual inspection area outside the sheet metal machine cover, and an operator only needs to stack the good products in the manual visual inspection area into the transfer basket 416 to complete processing.

In order to avoid the influence of particles and dust generated in the detection process on the working environment and operators, the dust suction pipe is connected into the air filtering system 5, the air filtering system 5 is connected with the filtering fan, the dust particles are adsorbed onto the filtering net by the filtering fan, the dust particles are further filtered by the filtering net and then discharged, and the air pollution is reduced as far as possible.

The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by the present specification, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims

1. A sodium nickel battery melt filling and testing line, the unit of which comprises: a code scanning feeding robot, a melt filling machine, a filling position feeding and discharging robot, a sealing nail welding machine, a cooling furnace and a test discharging machine; the method is characterized in that: the code scanning and feeding robot is provided with a battery clamping jaw and an eyebolt clamping jaw; a code scanning weighing defective product collecting station is also arranged between the code scanning feeding robot and the filling station feeding and discharging robot; a filling position feeding and discharging robot clamps a battery from a code scanning and weighing defective product collecting station and conveys the battery to the melt filling machine for filling; transferring the poured battery to the sealing nail welding machine; the sealing nail welding machine is butted with the cooling furnace; the outlet of the cooling furnace is provided with the test blanking machine;

2. The melt filling and testing line for sodium nickel batteries according to claim 1, characterized in that: the melt filling machine at least comprises the following components which are respectively arranged in different sealable containers: a measurement chamber and a battery; each sealable container is butted with a pressure generating assembly; the measuring chamber is butted with the battery through a melt nozzle;

3. The melt filling and testing line for sodium nickel batteries according to claim 2, wherein: the melt filling machine also comprises a positioning plate, a battery ejector rod and a positioning jig; the measuring chamber is arranged in the heat-preservation aluminum shell, and the battery is arranged in the vacuumizing sealing cover; the heat-preservation aluminum shell is also butted with a melt storage tank; a nozzle heater and a residual liquid cleaning module are arranged at the melt nozzle; the inner cavity of the positioning jig is coaxially communicated with the matching hole on the positioning plate; the positioning plate is vertically lifted by the pneumatic guide piece and is butted on the sealing container outside the battery; the upper end of the battery ejector rod penetrates through the positioning plate and is inserted into the inner cavity of the positioning jig, and the lower end of the battery ejector rod is movably matched with the middle part of the connecting rod; one end of the connecting rod is vertically pushed and pulled by aerodynamic force.

4. The melt filling and testing line for sodium nickel batteries according to claim 3, wherein: the pressure generating assembly comprises a nitrogen tank and a vacuum pump; the nitrogen tank is connected with the vacuum pump in parallel and then is connected to the sealable container; a vacuum switch valve is arranged on the vacuum pump; a nitrogen switch valve is arranged on the nitrogen tank; the nozzle heater is a heating wire structure; a brush plate made of Teflon material extends out of the residual liquid cleaning module to clean the melt nozzle; the residual liquid cleaning module comprises a third cylinder and a Teflon brush plate; a third cylinder pushes a Teflon brush plate; the Teflon brush plate is matched with and penetrates through the vacuumizing sealing cover through a sealing piece.

5. The melt filling and testing line for sodium nickel batteries according to claim 2 or 4, characterized in that: on the sealing nail welding machine, a plurality of jigs are arranged on the first turntable; the sealing nail dust removal mechanism comprises an iron wire brush and a first dust absorption pipe; the sealing nail feeding mechanism comprises a vibrating disc, a direct vibrating feeder, a material grabbing module and a linear module; the sealing nail welding mechanism comprises a laser welding mechanism driven by a three-axis system moving module; the laser welding mechanism comprises a vision module, a prepressing module and a laser welding module.

6. The melt filling and testing line for sodium nickel batteries according to claim 5, wherein: the circulating feeding line is formed by butting a full charging basket cooling line and an empty charging basket return line; a steering table for reversing feeding is arranged at the joint of the full charging basket cooling line and the empty charging basket return line; the steering surface of the steering table is connected with the feeding table or the discharging table; the feeding platform and the discharging platform are respectively matched with a feeding robot or a discharging robot; an inductor is arranged at the steering table; the feeding platform and the discharging platform are both provided with forward and backward feeding components.

7. The melt filling and testing line for sodium nickel batteries according to claim 2 or 6, characterized in that: the test blanking machine also comprises a non-defective product blanking belt and a defective product blanking belt; a jig is also arranged on the second turntable; the product dust removing mechanism comprises a second dust collecting pipe and a dust removing fan; the thickness testing mechanism comprises a Z-axis linear module and a thickness measuring sensor; open circuit voltage accredited testing organization includes the voltage probe of the vertical propelling movement of slip table cylinder.

8. The melt filling and testing line for sodium nickel batteries according to claim 7, wherein: a code scanning gun, a defective product collecting position, an eyebolt collecting box and a weighing position before pouring are arranged on the code scanning weighing defective product collecting station; four groups are arranged in the weighing positions before the perfusion.

9. The melt filling and testing line for sodium nickel batteries according to claim 8, wherein: a plurality of melt filling machines are arranged on two sides of the feeding and discharging robot at the filling position; the melt filling machine is uniformly distributed on two sides of the feeding and discharging robot on the filling position.