Automatic dispensing and assembly equipment for positive and negative electrode concave pads of lithium batteries

Abstract

The present invention discloses an automatic glue dispensing assembly device for positive and negative electrode concave pads of lithium batteries, which includes a cover plate feeding and conveying device fixed on a frame, a four-station material displacement manipulator, a cover plate positioning device, a concave pad installation device, a glue dispensing device and a discharge device. The four-station material displacement manipulator transports the cover plate from the cover plate feeding and conveying device to the cover plate positioning device for positioning, the four-station material displacement manipulator transports the positioned cover plate to the concave pad installation device for installing the concave pad, the cover plate assembled with the concave pad is transported to the glue dispensing device for gluing, and the product after gluing is transported to the discharge device. Through the above manner, the present invention has a compact structure and stable operation, and can perform feeding and positioning, concave pad assembly, internal control application of insulating glue and air-drying and unloading processing on the lithium battery cover plate, integrating multiple functions into one, with high assembly efficiency and low cost.

Description

Technical Field

[0001] The invention relates to the technical field of mechanical assembly, and in particular to an automatic glue dispensing assembly device for positive and negative electrode concave pads of lithium batteries. Background Art

[0002] Positive and negative electrode pads need to be installed on the lithium battery cover. In order to ensure the installation strength and insulation, insulating glue needs to be applied to the pad installation holes of the cover. Currently, the glue dispensing on the market is aimed at the outer wall. There is no machine on the market that can apply glue to the inner wall of the hole. Manual operation can only be used. Manual operation is slow and labor-intensive. In addition, the glue needs to be air-dried after application. Only after air-drying can it be stored in a centralized manner. This requires multiple positioning of the product, and the production efficiency is low. Based on the above defects and deficiencies, it is necessary to improve the existing technology and design an automatic glue dispensing and assembly equipment for the positive and negative electrode pads of lithium batteries. Summary of the invention

[0003] The main technical problem solved by the present invention is to provide an automatic glue dispensing and assembly equipment for the positive and negative electrode concave pads of lithium batteries, which has a compact structure and stable operation. It can perform feeding positioning, concave pad assembly, internal control application of insulating glue and air-drying and unloading processing on the lithium battery cover plate. It integrates multiple functions in one, has high assembly efficiency and low cost.

[0004] In order to solve the above technical problems, a technical solution adopted by the present invention is: to provide an automatic glue dispensing assembly equipment for positive and negative electrode concave gaskets of lithium batteries, which automatic glue dispensing assembly equipment for positive and negative electrode concave gaskets of lithium batteries includes a cover plate feeding and conveying device fixed on a frame, a four-station material displacement robot, a cover plate positioning device, a concave gasket installation device, a glue dispensing device and a unloading device. The four-station material displacement robot transports the cover plate from the cover plate feeding and conveying device to the cover plate positioning device for positioning, the four-station material displacement robot transports the positioned cover plate to the concave gasket installation device to install the concave gasket, the cover plate assembled with the concave gasket is transported to the glue dispensing device for gluing, and the product after gluing is transported to the unloading device.

[0005] Preferably, the cover plate feeding and conveying device includes a loading conveyor line, a silo recovery conveyor line, a cover plate silo, a cover plate lifting and feeding assembly, a sub-silo assembly and a recovery pushing cylinder. The loading conveyor line and the silo recovery conveyor line arranged in opposite directions are arranged on a frame. The cover plate silo is conveyed on the loading conveyor line, and a cover plate lifting and feeding assembly is docked at the output end of the loading conveyor line. A sub-silo assembly used in conjunction with the cover plate silo is arranged at the bottom of the loading conveyor line. A recovery pushing cylinder cooperating with the silo recovery conveyor line is also installed on the frame.

[0006] Preferably, the material distribution bin assembly includes a blocking unit, a separation unit and a pushing unit fixed to the bottom of the feeding conveyor line, the blocking unit includes a blocking frame, a blocking cylinder, a lifting plate, a guide column and a blocking plate, the blocking frame is fixed to the bottom of the feeding conveyor line, the blocking frame is equipped with a blocking cylinder, the telescopic rod of the blocking cylinder is equipped with a lifting plate, two guide columns are installed on the lifting plate, and the blocking plate is installed on the top of the guide column, and the feeding conveyor line is provided with a blocking plate avoidance opening. The structure of the separation unit is the same as that of the blocking unit, and the pushing unit includes a pushing frame, a pushing cylinder, a linear slide rail, a pushing plate, a material diverting block and a torque spring, the pushing frame is fixed to the bottom of the feeding conveyor line, the pushing frame is equipped with a pushing cylinder, the telescopic rod of the pushing cylinder is equipped with a linear slide rail, the linear slide rail is slidably connected to the pushing frame through a slider, the protruding end of the linear slide rail is equipped with a pushing plate, the protruding end of the pushing plate is inserted with a rotatable material diverting block, the material diverting block is connected to the pushing plate through a torque spring, and the material diverting block can rotate along the pushing plate under pressure.

[0007] Preferably, the cover plate lifting and feeding assembly includes a single-axis drive, a movable plate, a lifting drive, a lifting frame and a photoelectric sensor. The single-axis drive is horizontally arranged perpendicular to the conveying direction of the feeding conveyor line. The movable plate is installed on the driving block of the single-axis drive. The lifting drive is arranged under the movable plate. The lifting frame is installed on the driving block of the lifting drive. The lifting frame passes through the movable plate and points to the cover plate silo. The photoelectric sensor is fixed to the frame by a bracket, and the photoelectric sensor points to the cover plate inside the cover plate silo.

[0008] Preferably, the cover plate positioning device includes a positioning bracket, an X-axis clamping assembly, a Y-axis clamping assembly, an inlay boss detection sensor and an anti-foolproofing sensing assembly. The lower end of the top plate of the positioning bracket is equipped with an X-axis clamping assembly and a Y-axis clamping assembly which are arranged perpendicular to each other. The clamping parts of the X-axis clamping assembly and the Y-axis clamping assembly pass through the top plate of the positioning bracket and the clamping parts are used to clamp the cover plate. Two groups of inlay boss detection sensors which are arranged diagonally are installed on the side ends of the top plate of the positioning bracket. The inlay boss detection sensors are used to detect the inlay bosses on the cover plate. Two groups of anti-foolproofing sensing assemblies are also installed on the positioning bracket, and the anti-foolproofing sensing assemblies are used in conjunction with two anti-foolproofing convex points at the bottom of the cover plate. The X-axis clamping assembly includes a clamping bracket, a two-way cylinder, a clamping push plate and a cam bearing. The clamping bracket is arranged at the bottom of the top plate of the positioning bracket, and a two-way cylinder is installed on the clamping bracket. The two sliding blocks of the two-way cylinder are respectively equipped with clamping push plates, and the two clamping push plates are arranged crosswise. Two groups of relatively The cam bearing of the Y-axis clamping assembly comprises a two-way positioning cylinder, a positioning push plate, a vertical plate and a positioning block, the two-way positioning cylinder is fixed to the bottom of the clamping bracket, and the two sliding blocks of the two-way positioning cylinder are equipped with a positioning push plate, and the protruding end of the positioning push plate is equipped with a vertical plate, and the upper end of the vertical plate is equipped with two positioning blocks, and the positioning block is opposite to the side of the cover plate; the anti-foolproofing sensing assembly comprises an anti-foolproofing seat, an anti-foolproofing block, a shading sheet and a slot-type photoelectric sensor, the anti-foolproofing seat is fixed to the top plate of the positioning bracket, and a rotatable anti-foolproofing block is inserted on the anti-foolproofing seat through a pin shaft, and the vertical end face of the anti-foolproofing block is used in conjunction with the anti-foolproofing convex point at the lower end of one side of the cover plate, and a shading sheet is installed on the horizontal protruding part of the anti-foolproofing block, and a slot-type photoelectric sensor used in conjunction with the shading sheet is installed on the clamping bracket. When the cover plate is correctly placed, the anti-foolproofing convex point of the cover plate presses the anti-foolproofing block, and the other end of the anti-foolproofing block is lifted. At this time, the slot-type photoelectric sensor cannot detect the shading sheet. At the same time, the inlay boss detection sensor can detect the inlay boss above the cover plate.

[0009] Preferably, the concave pad installation device includes a mounting bracket, a double-station cover plate mounting assembly, a concave pad direct vibration feeding mechanism, a cutting assembly and a pressure head assembly; a double-station cover plate mounting assembly is arranged below the mounting bracket, concave pad direct vibration feeding mechanisms are arranged on both sides of the mounting bracket, a cutting assembly matched with a discharge port of the concave pad direct vibration feeding mechanism is installed on the top plate of the mounting bracket, and a pressure head assembly is installed on the top plate of the mounting bracket above the cutting assembly; the double-station cover plate mounting assembly includes a cam divider, a rotating disk, a cover plate clamp, a blanking box, an in-place detection switch and a lifting cylinder; a rotating disk is installed at the output end of the cam divider, Two sets of cover plate clamps are installed on the rotating disk, and the cover plate clamps include a cover plate fixing plate, a guide rod, a guide sleeve and a connecting plate. A cover plate mounting groove is arranged on the upper end of the cover plate fixing plate, a guide rod is installed on the bottom of the cover plate fixing plate, a guide sleeve matching with the guide rod is arranged on the rotating disk, and a connecting plate is installed on the lower part of the guide sleeve through the guide rod, and an in-position detection switch opposite to the cover plate clamp is arranged on the side end of the cam divider, a blanking box is installed on both sides of the rotating disk, and a lifting cylinder matching with the cover plate clamp is arranged under the rotating disk; the cutting assembly includes a cutting bottom plate, a guide rail, an air blowing pipe, a cutting cylinder, a cutting plate and a blanking sleeve, and the The cutting base plate is fixed on the top plate of the mounting bracket, a guide track opposite to the discharge hole of the concave pad straight vibration feeding mechanism is installed on the cutting base plate, an air blowing pipe is installed on the cutting base plate, the air blowing port of the air blowing pipe is opposite to the guide track, a cutting cylinder is installed on the cutting base plate, a cutting plate is installed on the telescopic rod of the cutting cylinder, the movement direction of the cutting plate and the horizontal direction of the guide track are perpendicular to each other, a cutting opening opposite to the guide track is arranged on the cutting plate, a blanking sleeve is also installed on the cutting base plate, when the cutting cylinder is in a contracted state, the cutting opening is opposite to the upper and lower positions of the blanking sleeve, the blanking sleeve is provided with a blanking opening in the vertical direction, and a blanking opening is arranged on the top of the blanking opening The material blocking boss; the pressure head assembly includes a pressure head bracket, a downward pressure cylinder, a pressure sensor, a downward pressure frame, a downward pressure guide rod, a downward pressure guide sleeve, a rectangular spring, a lower pressure plate and a pressure rod. The pressure head bracket is fixed on the top plate of the mounting bracket, and the downward pressure cylinder is installed on the bottom plate of the pressure head bracket. The telescopic rod of the downward pressure cylinder is connected to the lower pressure frame through the pressure sensor, and the lower pressure frame is installed with a downward pressure guide rod. The pressure head bracket is provided with a downward pressure guide sleeve matching therewith, and the bottom surface of the top plate of the lower pressure frame is connected to the lower pressure plate through a rectangular spring. The lower pressure plate is located above the bottom plate of the lower pressure frame, and a pressure rod is installed at the bottom of the lower pressure plate. The pressure rod passes through the lower pressure frame and is opposite to the upper and lower positions of the blanking sleeve.

[0010] Preferably, the glue dispensing device includes a glue dispensing bracket, a cover plate fixing block, a glue dispensing head, a glue barrel, a quantitative glue valve, a glue dispensing sensor and a recycling block, two groups of cover plate fixing blocks are installed on the top plate of the glue dispensing bracket, a cover plate is placed on the upper end of one group of cover plate fixing blocks, two glue dispensing heads matching with the concave pad mounting holes are arranged on the glue dispensing bracket below the cover plate, a glue barrel and a quantitative glue valve are arranged on the bottom plate and side end of the glue dispensing bracket, the glue barrel is connected to the glue dispensing head feeding port through the quantitative glue valve, a glue dispensing sensor is also arranged on the side end of the glue dispensing bracket, the glue dispensing sensor points to the upper cover plate of the cover plate fixing block, a recycling block connected to the return port at the bottom of the glue dispensing head is installed at the bottom of the top plate of the glue dispensing bracket, and the return port of the recycling block is connected to the glue barrel through a pipeline; The dispensing head comprises a dispensing barrel, a feed joint, a rubber core and a plunger. The dispensing barrel is axially provided with a discharge hole, a feed joint connected to the discharge hole is installed at the side end of the dispensing barrel, a rubber core is installed in the discharge hole, a plunger is installed at the bottom of the rubber core, the upper part of the rubber core passes through the discharge hole, the lower part of the rubber core is matched with the discharge hole, the axial diameter of the rubber core part above the feed joint is increased, and the increasing axial diameter of the rubber core is convenient for uniform glue discharge from the upper part and a large glue discharge amount. If the axial diameter of the rubber core is consistent, the glue feeding is slow. A cap is provided at the protruding end of the rubber core, and the cap is consistent with the outer diameter of the discharge part at the top of the dispensing barrel. The gap between the cap and the dispensing barrel is an annular discharge channel; an annular groove is provided on the upper end surface of the dispensing barrel, and a recovery channel connected to the recovery block is provided at the bottom of the annular groove.

[0011] Preferably, the unloading device includes a chain transmission line, a fixed block, a material arrival sensor, a fan, a material guide chute, a unloading conveyor belt, a detection bracket, a defective product shading sheet and a falling material photoelectric sensor. The chain transmission line is arranged on a frame, and fixed blocks are equidistantly installed on the chain of the chain transmission line. Assembled products are placed on a relative group of fixed blocks. A material arrival sensor is installed at the upper end of the chain transmission line, and two rows of fans pointing to the products are arranged in the middle of the chain transmission line. A material guide chute is installed at the bottom of the chain transmission line, and a unloading conveyor belt is arranged obliquely at the outlet of the material guide chute. A detection bracket is also installed on the chain transmission line, and a defective product shading sheet is movably inserted at the lower end of the top plate of the detection bracket, and a falling material photoelectric sensor cooperating with the defective product shading sheet is provided on the detection bracket.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] The cover feeding and conveying device can feed materials in an orderly manner and can recycle the empty cover silo for recycling;

[0014] The cover plate positioning device can detect whether the cover plate is placed correctly, including front and back side placement and horizontal placement;

[0015] The concave pad installation device is set up in two stations, which can install the positive and negative concave pads on the cover in an orderly manner, and the operation is compact and orderly;

[0016] The glue dispensing device can apply insulating glue around the hole wall of the cover plate, filling the market gap, and can recycle excess insulating glue to save energy;

[0017] The unloading device can air-dry and recycle the products and detect defective products at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a structural schematic diagram of an automatic dispensing and assembly device for positive and negative electrode concave pads of lithium batteries.

[0019] Figure 2 The present invention is a structural schematic diagram of a cover plate feeding and conveying device of an automatic dispensing assembly device for positive and negative electrode concave pads of lithium batteries.

[0020] Figure 3 This is a schematic diagram of the structure of a material bin assembly for automatic dispensing and assembly equipment for positive and negative electrode concave pads of lithium batteries.

[0021] Figure 4 The present invention is a structural schematic diagram of a cover plate lifting and feeding assembly of an automatic dispensing assembly equipment for positive and negative electrode concave pads of lithium batteries.

[0022] Figure 5 The present invention is a structural schematic diagram of a cover plate positioning device of an automatic dispensing assembly equipment for positive and negative electrode concave pads of lithium batteries.

[0023] Figure 6 The present invention is a partial structural schematic diagram of a cover plate positioning device of an automatic dispensing assembly device for positive and negative electrode concave pads of lithium batteries.

[0024] Figure 7 This is a schematic diagram of the Y-axis clamping assembly of an automatic dispensing assembly device for positive and negative electrode pads of lithium batteries.

[0025] Figure 8 The present invention is a structural schematic diagram of a concave pad installation device of an automatic glue dispensing assembly equipment for positive and negative electrode concave pads of lithium batteries.

[0026] Fig. 9 This is a schematic diagram of the structure of a double-station cover plate installation component of an automatic dispensing assembly device for positive and negative electrode concave pads of lithium batteries.

[0027] Fig.10 This is a schematic diagram of the cutting component structure of an automatic dispensing assembly device for positive and negative electrode concave pads of lithium batteries.

[0028] Fig.11 The present invention is a schematic diagram of the blanking sleeve structure of an automatic dispensing assembly equipment for positive and negative electrode concave pads of lithium batteries.

[0029] Fig.12 This is a schematic diagram of the structure of a pressure head assembly for an automatic dispensing assembly device for positive and negative electrode concave pads of lithium batteries.

[0030] Fig.13The present invention is a structural schematic diagram of a dispensing device of an automatic dispensing assembly equipment for positive and negative electrode concave pads of lithium batteries.

[0031] Fig.14 The present invention is a partial structural schematic diagram of a dispensing device of an automatic dispensing assembly equipment for positive and negative electrode concave pads of a lithium battery.

[0032] Fig.15 This is a cross-sectional view of a dispensing head of an automatic dispensing assembly device for positive and negative electrode concave pads of a lithium battery.

[0033] Fig.16 The present invention is a schematic diagram of the dispensing barrel structure of an automatic dispensing assembly device for positive and negative electrode concave pads of lithium batteries.

[0034] Fig.17 The present invention is a schematic diagram of the structure of a discharging device of an automatic dispensing assembly equipment for positive and negative electrode concave pads of lithium batteries.

[0035] Fig.18 This is a partial structural schematic diagram of a discharge device of an automatic dispensing assembly equipment for positive and negative electrode concave pads of lithium batteries.

[0036] Fig.19 This is a schematic diagram of the product structure. DETAILED DESCRIPTION

[0037] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings so that the advantages and features of the invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the protection scope of the present invention.

[0038] See also Figures 1 to 19 , the embodiment of the present invention includes:

[0039] A lithium battery positive and negative electrode concave gasket automatic glue dispensing assembly equipment, the lithium battery positive and negative electrode concave gasket automatic glue dispensing assembly equipment comprises a cover feeding and conveying device 2 fixed on a frame 1, a four-station material displacement robot 3, a cover positioning device 4, a concave gasket installation device 5, a glue dispensing device 6 and a discharge device 7, the four-station material displacement robot 3 conveys the cover at the cover feeding and conveying device 2 to the cover positioning device 4 for positioning, the four-station material displacement robot 3 conveys the positioned cover to the concave gasket installation device 5 to install the concave gasket, the cover assembled with the concave gasket is conveyed to the glue dispensing device 6 for gluing, and the glued product is conveyed to the discharge device 7.

[0040] The cover plate feeding and conveying device 2 includes a loading conveyor line 21, a silo recovery conveyor line 22, a cover plate silo 23, a cover plate lifting and feeding assembly 24, a sub-silo assembly 25 and a recovery pushing cylinder 26. The loading conveyor line 21 and the silo recovery conveyor line 22 arranged in opposite directions are arranged on the frame 1. The cover plate silo 23 is conveyed on the loading conveyor line 21. The output end of the loading conveyor line 21 is connected to the cover plate lifting and feeding assembly 24. The bottom of the loading conveyor line 21 is provided with a sub-silo assembly 25 used in conjunction with the cover plate silo 23. The frame is also equipped with a recovery pushing cylinder 26 that cooperates with the silo recovery conveyor line 22.

[0041] The material distribution bin assembly 25 includes a blocking unit 251, a separation unit 252 and a pushing unit 253 fixed to the bottom of the feeding conveyor line 21. The blocking unit 251 includes a blocking frame 2511, a blocking cylinder 2512, a lifting plate 2513, a guide column 2514 and a blocking plate 2515. The blocking frame 2511 is fixed to the bottom of the feeding conveyor line 21. The blocking cylinder 2512 is installed on the blocking frame 2511. The lifting plate 2513 is installed on the telescopic rod of the blocking cylinder 2512. Two guide columns 2514 are installed on the lifting plate 2513. The top of the guide column 2514 is installed with a blocking plate 2515. The feeding conveyor line 21 is provided with a blocking plate 2515 to avoid the opening. The structure of the separation unit 252 is the same as that of the blocking unit 251. The pushing unit 253 includes a pushing frame 2531, a pushing cylinder 2532, a linear slide rail 2533, a pushing plate 2534, a material shifting block 2535 and a torque spring 2536. The pushing frame 2531 is fixed to the bottom of the feeding conveyor line 21. The pushing frame 2531 is equipped with a pushing cylinder 2532. The telescopic rod of the pushing cylinder 2532 is equipped with a linear slide rail 2533. The linear slide rail 2533 is slidably connected to the pushing frame 2531 through a slider. A pushing plate 2534 is installed at the protruding end of the linear slide rail 2533. A rotatable material shifting block 2535 is inserted at the protruding end of the pushing plate 2534. The material shifting block 2535 is connected to the pushing plate 2534 through a torque spring 2536. Under the action of pressure, the material shifting block 2535 can rotate along the pushing plate 2534.

[0042] The cover plate lifting and feeding assembly 24 includes a single-axis driver 241, a movable plate 242, a lifting driver 243, a lifting frame 244 and a photoelectric sensor 245. The single-axis driver 241 is horizontally arranged perpendicular to the conveying direction of the feeding conveyor line 21. The movable plate 242 is installed on the driving block of the single-axis driver 241. The lifting driver 243 is arranged below the movable plate 242. The driving block of the lifting driver 243 is installed with a lifting frame 244. The lifting frame 244 passes through the movable plate 242 and points to the cover plate bin 23. The photoelectric sensor 245 is fixed to the frame 1 through a bracket, and the photoelectric sensor 245 points to the inner cover of the cover plate bin 23.

[0043] The cover plate positioning device 4 comprises a positioning bracket 41, an X-axis clamping assembly 42, a Y-axis clamping assembly 43, an inlay boss detection sensor 44 and an anti-fool-proofing induction assembly 45. The lower end of the top plate of the positioning bracket 41 is provided with an X-axis clamping assembly 42 and a Y-axis clamping assembly 43 which are arranged perpendicular to each other. The clamping parts of the X-axis clamping assembly 42 and the Y-axis clamping assembly 43 pass through the top plate of the positioning bracket 41 and the clamping parts are used to clamp the cover plate. Two sets of inlay boss detection sensors 44 which are arranged diagonally are installed at the side end of the top plate of the positioning bracket 41. The inlay boss detection sensors 44 are used to detect the inlay bosses on the cover plate. The positioning bracket 41 is provided with a plurality of inlay boss detection sensors 44, each of which is used to detect the inlay bosses on the cover plate. 1 is also equipped with two groups of foolproof induction components 45, which are used in conjunction with the two foolproof convex points at the bottom of the cover plate. The X-direction clamping component 42 includes a clamping bracket 421, a two-way cylinder 422, a clamping push plate 423 and a cam bearing 424. The clamping bracket 421 is arranged at the bottom of the top plate of the positioning bracket 41, and a two-way cylinder 422 is installed on the clamping bracket 421. The two sliding blocks of the two-way cylinder 422 are respectively equipped with clamping push plates 423, and the two clamping push plates 423 are cross-matched. Two groups of opposite cam bearings 424 are installed on the two clamping push plates 423; the Y-direction clamping component 43 includes a bidirectional positioning cylinder 431, a positioning push plate 432, a vertical plate 433 and a positioning block 434. The bidirectional positioning cylinder 431 is fixed to the bottom of the clamping bracket 421. The positioning push plates 432 are installed on the two sliding blocks of the bidirectional positioning cylinder 431. The protruding end of the positioning push plate 432 is installed with a vertical plate 433. Two positioning blocks 434 are installed on the upper end of the vertical plate 433. The positioning blocks 434 are opposite to the side of the cover plate; the anti-foolproofing sensing component 45 includes an anti-foolproofing seat 451, an anti-foolproofing block 452, a light shielding sheet 453 and a slot-type photoelectric sensor 454. The anti-foolproofing seat 451 is fixed to the top of the positioning bracket 41 On the board, a rotatable fool-proofing block 452 is inserted on the fool-proofing seat 451 through a pin shaft, and the vertical end face of the fool-proofing block 452 is used in conjunction with the fool-proofing protrusion at the lower end of one side of the cover plate, and a shading sheet 453 is installed on the horizontal extension of the fool-proofing block 452. A slot-type photoelectric sensor 454 used in conjunction with the shading sheet 453 is installed on the clamping bracket 421. When the cover plate is correctly placed, the fool-proofing protrusion of the cover plate presses the fool-proofing block 452, and the other end of the fool-proofing block 452 is lifted. At this time, the slot-type photoelectric sensor 454 cannot detect the shading sheet 453. At the same time, the inlay boss detection sensor 44 can detect the inlay boss above the cover plate.

[0044] The concave pad installation device 5 includes a mounting bracket 51, a double-station cover plate mounting assembly 52, a concave pad direct vibration feeding mechanism 53, a cutting assembly 54 and a pressure head assembly 55. The double-station cover plate mounting assembly 52 is arranged below the mounting bracket 51, and the concave pad direct vibration feeding mechanism 53 is arranged on both sides of the mounting bracket 51. The cutting assembly 54 that cooperates with the discharge port of the concave pad direct vibration feeding mechanism 53 is installed on the top plate of the mounting bracket 51, and the pressure head assembly 55 is installed on the top plate of the mounting bracket 51 above the cutting assembly 54. The double-station cover plate mounting assembly 52 includes a cam divider 521, a rotating disk 522, a cover plate clamp 523, a blanking box 524, and a material separator 521. , an in-position detection switch 525 and a lifting cylinder 526, a rotating disk 522 is installed at the output end of the cam divider 521, and two sets of cover plate clamps 523 are installed on the rotating disk 522, and the cover plate clamps 523 include a cover plate fixing plate 5231, a guide rod 5232, a guide sleeve 5233 and a connecting plate 5234, a cover plate fixing plate 5231 is provided with a cover plate mounting groove at the upper end, a guide rod 5232 is installed at the bottom of the cover plate fixing plate 5231, a guide sleeve 5233 matched with the guide rod 5232 is provided on the rotating disk 522, and the guide rod 5232 passes through the lower part of the guide sleeve 5233 and is installed with a connecting plate 5234, and the cam The wheel divider 521 is provided with an in-position detection switch 524 opposite to the cover plate clamp 523 at the side end, and blanking boxes 525 are installed at both sides of the rotating disk 522. A lifting cylinder 526 cooperating with the cover plate clamp 523 is provided below the rotating disk 522; the cutting assembly 54 includes a cutting bottom plate 541, a guide rail 542, an air blowing pipe 543, a cutting cylinder 544, a cutting plate 545 and a blanking sleeve 546. The cutting bottom plate 541 is fixed to the top plate of the mounting bracket 51, and a guide rail 542 opposite to the discharge hole of the concave pad straight vibration feeding mechanism 53 is installed on the cutting bottom plate 541. The air blowing pipe 543 is installed on the cutting bottom plate 541 , the blowing port of the blowing pipe 543 is opposite to the guide track 542, a cutting cylinder 544 is installed on the cutting bottom plate 541, a cutting plate 545 is installed on the telescopic rod of the cutting cylinder 544, the movement direction of the cutting plate 545 is perpendicular to the horizontal direction of the guide track 542, the cutting plate 545 is provided with a cutting opening 5450 opposite to the guide track 542, and a blanking sleeve 546 is also installed on the cutting bottom plate 541. When the cutting cylinder 544 is in a contracted state, the cutting opening 5450 and the blanking sleeve 546 are opposite in upper and lower positions, and the blanking sleeve 546 is provided with a blanking opening in the vertical direction, and a blocking boss 5460 is provided on the top of the blanking opening;The pressure head assembly 55 includes a pressure head bracket 551, a downward pressure cylinder 552, a pressure sensor 553, a downward pressure frame 554, a downward pressure guide rod 555, a downward pressure guide sleeve 556, a rectangular spring 557, a downward pressure plate 558 and a pressure rod 559. The pressure head bracket 551 is fixed on the top plate of the mounting bracket 51, and the downward pressure cylinder 552 is installed on the bottom plate of the pressure head bracket 551. The telescopic rod of the downward pressure cylinder 552 is connected to the downward pressure frame 554 through the pressure sensor 553. The downward pressure guide rod 555 is installed on the lower pressure frame 554. The pressure head bracket 551 is provided with a downward pressure guide sleeve 556 that cooperates with it. The bottom surface of the top plate of the lower pressure frame 554 is connected to the downward pressure plate 558 through the rectangular spring 557. The lower pressure plate 558 is located above the bottom plate of the lower pressure frame 554. A pressure rod 559 is installed at the bottom of the lower pressure plate 558. The pressure rod 559 passes through the lower pressure frame 554 and is opposite to the upper and lower positions of the blanking sleeve 546. ;

[0045] The dispensing device 6 includes a dispensing bracket 61, a cover plate fixing block 62, a dispensing head 63, a glue barrel 64, a quantitative glue valve 65, a dispensing sensor 66 and a recovery block 67. Two groups of cover plate fixing blocks 62 are installed on the top plate of the dispensing bracket 61. A cover plate is placed on the upper end of one group of cover plate fixing blocks 62. Two dispensing heads 63 that match the concave pad mounting holes are arranged on the dispensing bracket 61 under the cover plate. The bottom plate and side end of the dispensing bracket 61 are provided with a glue barrel 64 and a quantitative glue valve 65. The glue barrel 64 is connected to the feeding port of the glue dispensing head 63 through the quantitative glue valve 65. The side end of the glue dispensing bracket 61 is also provided with a glue dispensing sensor 66, which points to the upper cover plate of the cover plate fixing block 62. The bottom of the top plate of the glue dispensing bracket 61 is installed with a recovery block 67 connected to the return port at the bottom of the glue dispensing head 63. The return port of the recovery block 67 is connected to the glue barrel 64 through a pipeline; the glue dispensing head 63 includes a glue dispensing barrel 631, a feeding connector 632, a glue core 633 and The dispensing barrel 631 is provided with a discharge hole 6310 in the axial direction, and a feed connector 632 communicating with the discharge hole 6310 is installed at the side end of the dispensing barrel 631. A rubber core 633 is installed in the discharge hole 6310, and a plunger 634 is installed at the bottom of the rubber core 633. The upper part of the rubber core 633 passes through the discharge hole 6310, and the lower part of the rubber core 633 is in clearance with the discharge hole 6310. The axial diameter of the rubber core 633 above the feed connector 632 is increased, and the rubber core 633 is provided with a plug. The increasing shaft diameter 33 facilitates uniform glue discharge from the top and a large amount of glue discharge. If the shaft diameter of the rubber core 633 is consistent, the glue feeding is slow. The protruding end of the rubber core 633 is provided with a cap 6330, and the cap 6330 is consistent with the outer diameter of the top discharge part of the glue dispensing barrel 631. The gap between the cap 6330 and the glue dispensing barrel 631 is an annular discharge channel; the upper end surface of the glue dispensing barrel 631 is provided with an annular groove 6311, and the bottom of the annular groove 6311 is provided with a recovery channel 6312 communicated with the recovery block 67.

[0046] The unloading device 7 includes a chain transmission line 71, a fixed block 72, a material arrival sensor 73, a fan 74, a material guide chute 75, a unloading conveyor belt 76, a detection bracket 77, a defective product shading sheet 78 and a falling material photoelectric sensor 79. The chain transmission line 71 is arranged on the frame 1, and fixed blocks 72 are equidistantly installed on the chain of the chain transmission line 71, and assembled products are placed on a relative group of fixed blocks 72. A material arrival sensor 73 is installed on the upper end of the chain transmission line 71, and two rows of fans 74 pointing to the products are arranged in the middle of the chain transmission line 71. A material guide chute 75 is installed at the bottom of the chain transmission line 71, and a unloading conveyor belt 76 is arranged obliquely at the discharge port of the material guide chute 75. A detection bracket 77 is also installed on the chain transmission line 71, and a defective product shading sheet 78 is movably inserted at the lower end of the top plate of the detection bracket 77. A falling material photoelectric sensor 79 cooperating with the defective product shading sheet 78 is provided on the detection bracket 77.

[0047] When the automatic dispensing assembly equipment for positive and negative electrode concave pads of a lithium battery of the present invention is working, the cover plate bin 23 is transported to the feeding conveyor line 21 by the manipulator, and the feeding conveyor line 21 transports the cover plate bin 23 to the sub-bin assembly 25 in sequence. Under the action of pressure, the material shifting block 2535 can rotate to the horizontal along the pushing plate 2534, that is, on the right side of the pushing unit 253, and the blocking unit 251 and the separation unit 252 are raised in sequence to block the next cover plate bin 23. The pushing unit 253 works, and at this time, the material shifting block 2535 is rotated to the vertical state under the elastic force of the torque spring 2536, and the piston rod of the pushing cylinder 2532 is contracted to drive the material shifting block 2535 to push the cover plate bin 23, and the cover plate bin 23 is pushed to the movable plate 242 of the cover plate lifting and feeding assembly 24. The lifting driver 243 drives the lifting frame 244 to move upward, and the lifting frame 244 drives the top cover of the cover bin 23 to move to the grabbing plane. After the photoelectric sensor 245 detects the cover, the four-station displacement manipulator 3 conveys the cover at the cover feeding and conveying device 2 to the cover positioning device 4. After all the covers in the cover bin 23 are taken away, the single-axis driver 241 conveys the empty cover bin 23 to the side end of the bin recovery conveyor line 22, and the recovery push cylinder 26 pushes the empty cover bin 23 to the bin recovery conveyor line 22. The cover is placed on the top plate of the positioning bracket 41, and the X-axis clamping component 42 and the Y-axis clamping component 43 are used together to clamp and position the cover in the X and Y directions. When the inlaid boss detection sensor 44 can detect the top of the cover Inlaid boss, the front of the cover is placed correctly, otherwise the cover is installed upside down, when the cover anti-fool convex point presses the anti-fool block 452, the other end of the anti-fool block 452 is lifted, at this time the slot-type photoelectric sensor 454 cannot detect the shading sheet 453, the cover is installed correctly, otherwise the cover needs to be rotated 180 degrees, after the positioning is completed, the four-station displacement manipulator 3 will transport the positioned cover to the concave pad installation device 5, at this time the cover is placed on the cover fixture 523 of the double-station cover installation assembly 52, after the in-place detection switch 525 detects the cover, the cam divider 521 drives the cover fixture 523 to rotate to the bottom of the cutting assembly 54, the lifting cylinder 526 extends to lift the cover fixture 523, and the positive and negative concave pads in the concave pad direct vibration feeding mechanism 53 are transported to the cutting assembly 54 for guidance. Track 542, the concave pad moves to the cutting opening 5450 of the cutting plate 545, the telescopic rod of the cutting cylinder 544 contracts to drive the concave pad to move above the blanking sleeve 546, the pressure head assembly 55 works, the telescopic rod of the down-pressing cylinder 552 extends to drive the down-pressing frame 554 to move down, the upper pressure rod 559 of the down-pressing frame 554 moves down to press the concave pad onto the cover plate inlay boss, the upper pressure rod 559 is elastically set to avoid damaging the product, the cam divider 521 continues to drive the cover plate fixture 523 to rotate out, the cover plate assembled with the concave pad is transported to the dispensing device 6 by the four-station displacement manipulator 3, the glue barrel 64 quantitatively dispenses glue to the dispensing head 63 through the quantitative glue valve 65, the insulating glue is transported to the discharge hole 6310 by the feed joint 632, and the shaft diameter of the glue core 633 above the material joint 632 increases.The increasing diameter of the rubber core 633 is convenient for uniform glue discharge from the top, and the glue discharge amount is large. The insulating glue is applied to the mounting hole of the cover plate inlay boss through the annular discharge channel formed by the gap between the cap 6330 and the dispensing barrel 631. The excess insulating glue is recovered into the rubber barrel 64 through the recovery channel 6312 through the recovery block 67. After the insulating glue is applied, the product is transported to the upper fixed block 72 of the unloading device 7 by the four-station displacement manipulator 3. The chain transmission line 71 drives the product to rotate for one circle, and the fan 74 blows to the product to dry the insulating glue. The dried product passes through the guide chute 75 and falls to the unloading conveyor belt conveyor 76 for output. If the product does not fall, two products will be stacked on the fixed block 72 in the next cycle. The product is too high to drive the defective product shading sheet 78 to rotate. At this time, the photoelectric sensor 79 for dropping materials cannot detect the defective product shading sheet 78, and the equipment alarms and stops for inspection.

[0048] The invention discloses an automatic glue dispensing and assembling device for positive and negative electrode concave pads of a lithium battery, which has a compact structure and stable operation, and can perform feeding and positioning, concave pad assembly, internal control coating of insulating glue, and air-drying and unloading processing on a lithium battery cover plate, integrating multiple functions in one, with high assembly efficiency and low cost.

[0049] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. An automatic dispensing and assembly equipment for positive and negative electrode concave pads of lithium batteries, characterized by: The automatic glue dispensing and assembly equipment for positive and negative concave pads of lithium batteries includes a cover plate feeding and conveying device fixed on a frame, a four-station material displacement manipulator, a cover plate positioning device, a concave pad installation device, a glue dispensing device and a discharge device. The four-station material displacement manipulator conveys the cover plate from the cover plate feeding and conveying device to the cover plate positioning device for positioning, the four-station material displacement manipulator conveys the positioned cover plate to the concave pad installation device for installing the concave pad, the cover plate assembled with the concave pad is conveyed to the glue dispensing device for gluing, and the glued product is conveyed to the discharge device; The cover plate feeding and conveying device comprises a feeding conveying line, a silo recovery conveying line, a cover plate silo, a cover plate lifting feeding assembly, a sub-silo assembly and a recovery pushing cylinder. The feeding conveying line and the silo recovery conveying line arranged in two opposite directions are arranged on the frame. The cover plate silo is conveyed on the feeding conveying line. The output end of the feeding conveying line is connected with the cover plate lifting feeding assembly. The sub-silo assembly used in conjunction with the cover plate silo is arranged at the bottom of the feeding conveying line. The recovery pushing cylinder matched with the silo recovery conveying line is also installed on the frame. The cover plate positioning device includes a positioning bracket, an X-axis clamping assembly, a Y-axis clamping assembly, an inlay boss detection sensor and an anti-foolproofing induction assembly. The lower end of the top plate of the positioning bracket is equipped with an X-axis clamping assembly and a Y-axis clamping assembly arranged perpendicular to each other. The clamping parts of the X-axis clamping assembly and the Y-axis clamping assembly pass through the top plate of the positioning bracket and the clamping parts are used to clamp the cover plate. Two groups of inlay boss detection sensors arranged diagonally are installed on the side end of the top plate of the positioning bracket. The inlay boss detection sensors are used to detect the inlay bosses on the cover plate. Two groups of anti-foolproofing induction assemblies are also installed on the positioning bracket. The anti-foolproofing induction assemblies are used in conjunction with the two anti-foolproofing convex points at the bottom of the cover plate. The X-axis clamping assembly includes a clamping bracket, a bidirectional cylinder, a clamping push plate and a cam bearing. The clamping bracket is arranged at the bottom of the top plate of the positioning bracket. The clamping bracket is equipped with a bidirectional cylinder and two sliding blocks of the bidirectional cylinder. The two clamping push plates are respectively installed on the top and the bottom, and the two clamping push plates are cross-coordinated and arranged, and two sets of opposite cam bearings are installed on the two clamping push plates; the Y-axis clamping assembly comprises a two-way positioning cylinder, a positioning push plate, a vertical plate and a positioning block, the two-way positioning cylinder is fixed to the bottom of the clamping bracket, and the two sliding blocks of the two-way positioning cylinder are installed with a positioning push plate, the protruding end of the positioning push plate is installed with a vertical plate, and two positioning blocks are installed on the upper end of the vertical plate, and the positioning blocks are opposite to the side edges of the cover plate; the fool-proofing sensing assembly comprises a fool-proofing seat, a fool-proofing block, a shading sheet and a slot-type photoelectric sensor, the fool-proofing seat is fixed to the top plate of the positioning bracket, and a rotatable fool-proofing block is inserted on the fool-proofing seat through a pin shaft, the vertical end face of the fool-proofing block is used in conjunction with the fool-proofing convex point at the lower end of one side of the cover plate, the horizontal protruding part of the fool-proofing block is installed with a shading sheet, and the clamping bracket is installed with a slot-type photoelectric sensor used in conjunction with the shading sheet; The concave pad installation device includes a mounting bracket, a double-station cover plate mounting assembly, a concave pad direct vibration feeding mechanism, a cutting assembly and a pressure head assembly. A double-station cover plate mounting assembly is arranged below the mounting bracket, and concave pad direct vibration feeding mechanisms are arranged on both sides of the mounting bracket. A cutting assembly that cooperates with the discharge port of the concave pad direct vibration feeding mechanism is installed on the top plate of the mounting bracket, and a pressure head assembly is installed on the top plate of the mounting bracket above the cutting assembly. The double-station cover plate mounting assembly includes a cam divider, a rotating disk, a cover plate clamp, a blanking box, an in-place detection switch and a lifting cylinder. A rotating disk is installed at the output end of the cam divider, and a rotating disk is installed on the rotating disk. Two sets of cover plate clamps are installed, and the cover plate clamps include a cover plate fixing plate, a guide rod, a guide sleeve and a connecting plate. A cover plate mounting groove is arranged on the upper end of the cover plate fixing plate, a guide rod is installed on the bottom of the cover plate fixing plate, a guide sleeve matching with the guide rod is arranged on the rotating disk, a connecting plate is installed on the lower part of the guide sleeve through the guide rod, an in-place detection switch opposite to the cover plate clamp is arranged on the side end of the cam divider, a blanking box is installed on both sides of the rotating disk, and a lifting cylinder matching with the cover plate clamp is arranged under the rotating disk; the cutting assembly includes a cutting bottom plate, a guide rail, an air blowing pipe, a cutting cylinder, a cutting plate and a blanking sleeve, and the cutting The bottom plate is fixed on the top plate of the mounting bracket, a guide track opposite to the discharge hole of the concave pad straight vibration feeding mechanism is installed on the cutting bottom plate, an air blowing pipe is installed on the cutting bottom plate, the air blowing port of the air blowing pipe is opposite to the guide track, a cutting cylinder is installed on the cutting bottom plate, a cutting plate is installed on the telescopic rod of the cutting cylinder, the movement direction of the cutting plate and the horizontal direction of the guide track are perpendicular to each other, a cutting opening opposite to the guide track is provided on the cutting plate, a blanking sleeve is also installed on the cutting bottom plate, when the cutting cylinder is in a contracted state, the cutting opening is opposite to the upper and lower positions of the blanking sleeve, the blanking sleeve is provided with a blanking opening in the vertical direction, and a baffle is provided on the top of the blanking opening Material boss; the pressure head assembly includes a pressure head bracket, a downward pressure cylinder, a pressure sensor, a downward pressure frame, a downward pressure guide rod, a downward pressure guide sleeve, a rectangular spring, a downward pressure plate and a pressure rod. The pressure head bracket is fixed on the top plate of the mounting bracket, and the downward pressure cylinder is installed on the bottom plate of the pressure head bracket. The telescopic rod of the downward pressure cylinder is connected to the downward pressure frame through the pressure sensor, and the downward pressure guide rod is installed on the lower pressure frame. The pressure head bracket is provided with a downward pressure guide sleeve matching therewith. The bottom surface of the top plate of the lower pressure frame is connected to the lower pressure plate through a rectangular spring. The lower pressure plate is located above the bottom plate of the lower pressure frame, and a pressure rod is installed at the bottom of the lower pressure plate. The pressure rod passes through the lower pressure frame and is opposite to the upper and lower positions of the blanking sleeve.

2. The automatic dispensing assembly equipment for positive and negative electrode concave pads of lithium batteries according to claim 1, characterized in that: The material distribution bin assembly includes a blocking unit, a separation unit and a pushing unit fixed to the bottom of the feeding conveyor line, the blocking unit includes a blocking frame, a blocking cylinder, a lifting plate, a guide column and a blocking plate, the blocking frame is fixed to the bottom of the feeding conveyor line, the blocking frame is equipped with a blocking cylinder, the telescopic rod of the blocking cylinder is equipped with a lifting plate, two guide columns are installed on the lifting plate, the blocking plate is installed on the top of the guide column, and a blocking plate avoidance opening is installed on the feeding conveyor line. The structure of the separation unit is the same as that of the blocking unit. The pushing unit includes a pushing frame, a pushing cylinder, a linear slide rail, a pushing plate, a material diverting block and a torque spring. The pushing frame is fixed to the bottom of the feeding conveyor line, the pushing frame is equipped with a pushing cylinder, the telescopic rod of the pushing cylinder is equipped with a linear slide rail, the linear slide rail is slidably connected to the pushing frame through a slider, a pushing plate is installed at the protruding end of the linear slide rail, a rotatable material diverting block is inserted at the protruding end of the pushing plate, and the material diverting block is connected to the pushing plate through a torque spring.

3. The automatic dispensing assembly equipment for positive and negative electrode concave pads of lithium batteries according to claim 1, characterized in that: The cover plate lifting and feeding assembly includes a single-axis drive, a movable plate, a lifting drive, a lifting frame and a photoelectric sensor. The single-axis drive is horizontally arranged perpendicular to the conveying direction of the feeding conveyor line. The movable plate is installed on the driving block of the single-axis drive. The lifting drive is arranged under the movable plate. The lifting frame is installed on the driving block of the lifting drive. The lifting frame passes through the movable plate and points to the cover plate bin. The photoelectric sensor is fixed to the frame by a bracket, and the photoelectric sensor points to the cover plate in the cover plate bin.

4. The automatic dispensing assembly equipment for positive and negative electrode concave pads of lithium batteries according to claim 1, characterized in that: The dispensing device includes a dispensing bracket, a cover plate fixing block, a dispensing head, a glue barrel, a quantitative glue valve, a dispensing sensor and a recycling block. Two groups of cover plate fixing blocks are installed on the top plate of the dispensing bracket, and a cover plate is placed on the upper end of one group of cover plate fixing blocks. Two dispensing heads that match the concave pad mounting holes are arranged on the dispensing bracket under the cover plate. The bottom plate and side end of the dispensing bracket are provided with a glue barrel and a quantitative glue valve. The glue barrel is connected to the dispensing head feeding port through the quantitative glue valve. A dispensing sensor is also arranged on the side end of the dispensing bracket. The dispensing sensor points to the upper cover plate of the cover plate fixing block. A recycling block that communicates with the return port at the bottom of the dispensing head is installed at the bottom of the top plate of the dispensing bracket. The recycling block The reflux port is connected to the glue barrel through a pipeline; the glue dispensing head includes a glue dispensing barrel, a feed joint, a glue core and a plunger; the glue dispensing barrel is axially provided with a discharge hole; a feed joint communicating with the discharge hole is installed at the side end of the glue dispensing barrel; a glue core is installed in the discharge hole; a plunger is installed at the bottom of the glue core; the upper part of the glue core passes through the discharge hole; the lower part of the glue core is matched with the gap of the discharge hole; the axial diameter of the glue core part above the feed joint is increased; a cap is provided at the protruding end of the glue core; the cap is consistent with the outer diameter of the discharge part at the top of the glue dispensing barrel; the gap between the cap and the glue dispensing barrel is an annular discharge channel; an annular groove is provided on the upper end surface of the glue dispensing barrel; a recovery channel communicating with the recovery block is provided at the bottom of the annular groove.

5. The automatic dispensing assembly equipment for positive and negative electrode concave pads of lithium batteries according to claim 1, characterized in that: The unloading device includes a chain transmission line, a fixed block, a material arrival sensor, a fan, a material guide chute, a unloading conveyor belt, a detection bracket, a defective product shading sheet and a falling material photoelectric sensor. The chain transmission line is arranged on a frame, and fixed blocks are equidistantly installed on the chain of the chain transmission line. Assembled products are placed on a relative group of fixed blocks. A material arrival sensor is installed at the upper end of the chain transmission line, and two rows of fans pointing to the products are arranged in the middle of the chain transmission line. A material guide chute is installed at the bottom of the chain transmission line, and a unloading conveyor belt is arranged obliquely at the material guide chute outlet. A detection bracket is also installed on the chain transmission line, and a defective product shading sheet is movably inserted at the lower end of the top plate of the detection bracket, and a falling material photoelectric sensor cooperating with the defective product shading sheet is provided on the detection bracket.

Images