Full-automatic welding device for storage battery cover plate

Abstract

The invention discloses a storage battery cover plate full-automatic welding device, and belongs to the technical field of storage battery cover plate welding, the storage battery cover plate full-automatic welding device comprises a plate feeding device, the plate feeding device is used for placing a to-be-machined storage battery cover plate, the plate feeding device is provided with a cutting device and a welding device, the cutting device is used for cutting the cover plate, and the welding device is used for welding the cover plate. And the welding device is used for welding and forming the storage battery cover plate. The plate feeding device can perform equal-length cutting on an aluminum plate through the cutting-off mechanism, the aluminum plate is automatically fed into the cutting device after the aluminum plate is cut, and the automation degree is high; the cutting device can synchronously cut off the four corners of an aluminum plate, the cut aluminum plate is fed into the welding device after cutting is completed, meanwhile, a next to-be-cut aluminum plate is fed, and the action continuity is good; the welding device firstly stamps the cut rear cover plate, presses the cut rear cover plate into a box shape, and then automatically welds the cut rear cover plate, so that the welding efficiency is high.

Description

Technical Field

[0001] The invention relates to the technical field of battery cover plate welding, and in particular to a battery cover plate full-automatic welding device. Background Art

[0002] With the popularity of electric vehicles and portable electronic devices, lithium batteries have become the mainstream energy storage technology. One of the important components of lithium batteries is the cover plate, which protects the internal components of the battery while bearing external pressure. It is a component that can protect and seal. The cover plate is generally made of high-purity aluminum as the base material. Aluminum has good corrosion resistance and high hardness, which is very suitable for use. In addition, the cover plate processing needs to be precise enough to ensure good sealing after installation; the processing of lithium battery cover plates requires first cutting the aluminum sheet into a specified size, then cutting off the aluminum sheet around, and then bending the aluminum sheet into a cover shape and welding. The battery cover plate welding device in the prior art is usually carried out by a robot, and it is impossible to cut the aluminum plate at the same time. The operation is complicated, and each structure is independent of each other and requires strict cooperation to work, and the degree of automation is low. Summary of the invention

[0003] In view of the above technical problems, the technical solution adopted by the present invention is: a fully automatic welding device for battery cover plates, including a plate feeding device, the plate feeding device includes a plate feeding box, the plate feeding device is used to put the battery cover plates to be processed, the plate feeding device is provided with a cutting device and a welding device, the cutting device includes a lifting frame, the lifting frame is slidably installed on the plate feeding box, the cutting device is used to cut the cover plates, the welding device includes an entry frame, the entry frame is fixedly installed with the plate feeding box, and the welding device is used to weld the battery cover plates into shape.

[0004] Furthermore, the board feeding device includes a motor arranged below the board feeding box, an internal gear is fixedly mounted on the motor shaft of the motor, an external gear is fixedly mounted on the internal gear, an eccentric gear is rotatably mounted on the board feeding box, an eccentric rotating rod is rotatably mounted on the eccentric gear, the internal gear is meshed with the eccentric gear, an internal cam is rotatably mounted on the board feeding box, a large cam, a small transmission wheel and a transmission gear are fixedly mounted on the internal cam, and an oblique transmission belt is wrapped around the transmission gear and the external gear.

[0005] Furthermore, a lifting mechanism is provided on the board feeding box, and the lifting mechanism includes a front shifting shaft rotatably mounted on the board feeding box, a front transfer gear, a front belt gear, a front friction wheel and an outer cam are fixedly mounted on the front shifting shaft, a front conveying wheel is rotatably mounted on the board feeding box, the front conveying wheel and the front friction wheel form a friction transmission, the outer cam cooperates with the lifting frame, and a shifting transmission belt is wrapped around the front belt gear and the small transmission wheel.

[0006] Furthermore, a cutting mechanism is provided on the board feeding box, and the cutting mechanism includes side rails and upper and lower frames fixedly installed on the board feeding box, a side slider is slidably installed on the side rails, a slider spring is provided between the side slider and the side rails, an upper rotating rod and a lower rotating rod are rotatably installed on the side slider, an upper cutting knife is rotatably installed on the upper rotating rod, and a lower cutting knife is rotatably installed on the lower rotating rod, the upper cutting knife and the lower cutting knife are respectively slidably installed with the upper and lower frames, and the lower cutting knife cooperates with a large cam.

[0007] Furthermore, a flipping mechanism is provided on the board entry box, a tipping plate is rotatably installed on the board entry box, a sliding block is slidably installed below the tipping plate, a lifting push column is rotatably installed on the sliding block, the lifting push column is slidably installed with the board entry box, and the lifting push column cooperates with the inner cam.

[0008] Manually insert the long aluminum sheet from the board feeding box, the long aluminum sheet passes between the upper cutter and the lower cutter, and the long aluminum sheet hits the front blocking plate. At this time, the long aluminum sheet cannot move forward, and the rotation of the motor drives the inner gear and the outer gear to rotate, thereby driving the eccentric gear to rotate, thereby driving the eccentric rotating rod to rotate eccentrically, and the outer gear drives the transmission gear to rotate through the oblique transmission belt, thereby driving the large cam, the inner cam and the small transmission wheel to rotate, and the small transmission wheel rotates by shifting the transmission belt to drive the front belt gear to rotate, thereby driving the front shifting shaft, the front transfer gear, the front friction wheel and the outer cam to rotate, and the front friction wheel drives the front conveying wheel to rotate, and the large cam rotates to lift the lower cutter, and the lower cutter drives the side slider to slide through the lower rotating rod, and the slider spring is compressed, thereby driving the upper cutter to descend through the upper rotating rod, so that the lower cutter rises while the upper cutter descends, and the long aluminum sheet is cut by the upper and lower cutters, and the cover plate formed after cutting is located on the dumping plate. After the outer cam is disengaged from the lifting frame, the lifting frame descends under the action of gravity, driving the end blocking plate to descend, blocking the cover plate, so that the cover plate is located between the end blocking plate and the front blocking plate, and when the cover plate reaches the bottom of the upper cutting frame, the end blocking plate is already located in front of the cover plate.

[0009] Furthermore, the cutting device includes an upper cutting frame fixedly mounted on the lifting frame, an upper rack fixedly mounted on the upper cutting frame, an intermediate gear rotatably mounted on the board feeding box, a lower cutting frame slidably mounted on the board feeding box, a lower rack fixedly mounted on the lower cutting frame, the lower rack meshes with the intermediate gear, the upper rack meshes with the intermediate gear, and an end blocking plate and a front blocking plate are arranged on the lifting frame.

[0010] Furthermore, four tangent motors are fixedly mounted on the upper cutting frame, and a tangent cutting wheel is fixedly mounted on the motor shaft of the tangent motor; four side cutting motors are fixedly mounted on the lower cutting frame, and a side cutting wheel is fixedly mounted on the motor shaft of the side cutting motor.

[0011] Furthermore, a delivery mechanism is arranged below the board feeding box, and the delivery mechanism includes a rear conveying shaft rotatably mounted on the board feeding box, a rear friction wheel and a rear belt gear are fixedly mounted on the rear conveying shaft, a transverse transmission belt is wound around the rear belt gear and the front transfer gear, and two rear conveying wheels are rotatably mounted on the board feeding box, and the rear conveying wheels and the rear friction wheels form a friction transmission.

[0012] The rotation of the front transmission gear drives the rear belt gear to rotate through the transverse transmission belt, thereby driving the rear conveying shaft and the rear friction wheel to rotate. The rotation of the rear friction wheel drives the cover plate to move, but the cover plate is blocked by the end blocking plate and cannot move forward. When the cover plate enters between the lifting frame and the board feeding box, the lifting frame and the upper cutting frame are in a raised state. When the outer cam is disengaged from the lifting frame, the lifting frame and the upper cutting frame are lowered under the action of gravity, thereby driving the positive cutting wheel to descend, and the upper rack is driven to descend through the lowering of the upper cutting frame, driving the middle gear to rotate, thereby driving the lower cutting frame and the lower cutting frame to rise, thereby driving the side cutting wheel to rise, and the rotation of the positive cutting motor and the side cutting motor respectively drives the positive cutting wheel and the side cutting wheel to rotate, cutting off the four corners of the cover plate to form a cut cover plate, and then when the lifting frame and the upper cutting frame rise again, the end blocking plate leaves the front of the cut cover plate, and the cut cover plate is transported to the entry frame through the rotation of the front conveying wheel and the rear conveying wheel.

[0013] Furthermore, the welding device includes a welding box fixedly installed under the entry frame, an insertion plate is slidably installed on the welding box, the insertion plate is rotatably installed with the eccentric rotating rod, one end of a pull rope is fixedly installed on the insertion plate, a lower pulley and an upper pulley are rotatably installed on the entry frame, a gravity frame is slidably installed on the entry frame, the pull rope passes around the lower pulley and the upper pulley, and the other end of the pull rope is fixedly installed on the gravity frame, four welding guns are fixedly installed on the gravity frame, two sliding frames are slidably installed on the gravity frame, a lower pressure plate is fixedly installed on the sliding frame, a strong spring is arranged between the lower pressure plate and the gravity frame, and the cover plate after cutting forms a cut cover plate and falls onto the entry frame.

[0014] As the eccentric rotating rod rotates, the insert plate is driven to slide toward the welding box. Under the gravity of the gravity frame, the gravity frame and the lower pressure plate descend. After the lower pressure plate descends, the middle part of the cut cover plate is pressed down onto the insert plate, and the cut cover plate is folded up around. After the lower pressure plate presses the cut cover plate against the insert plate, the gravity frame continues to descend, so that the sliding frame slides along the gravity frame, the strong spring is compressed, and the welding gun begins to weld with the butt welds of the folded parts of the cut cover plate and the center of the cut cover plate. As the eccentric rotating rod continues to rotate, it drives the insert plate to slide outside the welding box, pulls the pull rope, and pulls the gravity frame to the initial position. When the insert plate completely leaves the welding box, the welded battery cover plate falls out.

[0015] Compared with the prior art, the present invention has the following advantages: (1) the plate feeding device provided in the present invention can cut the aluminum plate to equal length through the cutting mechanism, and automatically feed the aluminum plate into the cutting device after the aluminum plate cutting is completed, and the degree of automation is high; (2) the cutting device provided in the present invention can synchronously cut off the four corners of the aluminum plate, and feed the cut cover plate into the welding device after cutting is completed, and the next aluminum plate to be cut is fed in at the same time, and the action continuity is good; (3) the welding device provided in the present invention first punches the cut cover plate to press it into a box shape, and then automatically welds it, and the welding efficiency is high. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0017] Figure 2 The structure of the plate feeding device of the present invention is shown in FIG. Figure 1 .

[0018] Figure 3 The structure of the plate feeding device of the present invention is shown in FIG. Figure 2 .

[0019] Figure 4 It is a schematic diagram of the structure of the lifting mechanism of the present invention.

[0020] Figure 5 It is a schematic diagram of the structure of the turning mechanism of the present invention.

[0021] Figure 6 The structure of the cutting device of the present invention is shown in FIG. Figure 1 .

[0022] Figure 7 The structure of the cutting device of the present invention is shown in FIG. Figure 2 .

[0023] Figure 8 The structure of the cutting device of the present invention is shown in FIG. Figure 3 .

[0024] Fig. 9 The structure of the welding device of the present invention is shown in FIG. Figure 1 .

[0025] Fig.10 The structure of the welding device of the present invention is shown in FIG. Figure 2 .

[0026] Figure numbers: 101-board feeding box; 102-side rail plate; 103-side slider; 104-upper rotating rod; 105-upper cutting knife; 106-lower rotating rod; 107-lower cutting knife; 108-slider spring; 109-upper and lower racks; 110-dumping plate; 111-motor; 112-internal gear; 113-external gear; 114-eccentric gear; 115-eccentric rotating rod; 116-oblique transmission belt; 117-transmission gear; 118-large cam; 119-internal cam; 120-small transmission wheel; 121-shifting transmission belt; 122-front shifting shaft; 123-front transmission gear; 124-front belt gear; 125-front friction wheel; 126-front conveying wheel; 127-external cam; 128-lifting Push column; 129-sliding block; 201-lifting frame; 202-upper cutting frame; 203-upper rack; 204-middle gear; 205-lower rack; 206-lower cutting frame; 207-end blocking plate; 208-front blocking plate; 209-rear conveying wheel; 210-side cutting wheel; 211-front cutting wheel; 212-rear belt gear; 213-rear conveying shaft; 214-rear friction wheel; 215-horizontal transmission belt; 301-entry frame; 302-welding box; 303-insertion plate; 304-pull rope; 305-lower pulley; 306-upper pulley; 307-gravity frame; 308-welding gun; 309-sliding frame; 310-lower pressure plate; 311-strong spring; 312-rear cover plate. DETAILED DESCRIPTION

[0027] The specific implementation of the present invention will be further described below in conjunction with the accompanying drawings.

[0028] Example: Reference Figure 1-Figure 10 A fully automatic welding device for battery cover plates, including a plate feeding device, the plate feeding device includes a plate feeding box 101, the plate feeding device is used to put the battery cover plates to be processed, the plate feeding device is provided with a cutting device and a welding device, the cutting device includes a lifting frame 201, the lifting frame 201 is slidably mounted on the plate feeding box 101, the cutting device is used to cut the cover plates, the welding device includes an entry frame 301, the entry frame 301 is fixedly mounted on the plate feeding box 101, and the welding device is used to weld the battery cover plates into shape.

[0029] like Figure 2-Figure 5As shown, the board feeding device includes a motor 111 arranged below the board feeding box 101, an internal gear 112 is fixedly mounted on the motor shaft of the motor 111, an external gear 113 is fixedly mounted on the internal gear 112, an eccentric gear 114 is rotatably mounted on the board feeding box 101, an eccentric rotating rod 115 is rotatably mounted on the eccentric gear 114, the internal gear 112 is meshed with the eccentric gear 114, an inner cam 119 is rotatably mounted on the board feeding box 101, a large cam 118, a small transmission wheel 120 and a transmission gear 117 are fixedly mounted on the inner cam 119, and an oblique transmission belt 116 is wound around the transmission gear 117 and the external gear 113.

[0030] like Figure 2-Figure 5 As shown, a lifting mechanism is provided on the board input box 101, and the lifting mechanism includes a front toggle shaft 122 rotatably mounted on the board input box 101, and a front transfer gear 123, a front belt gear 124, a front friction wheel 125 and an outer cam 127 are fixedly mounted on the front toggle shaft 122, and a front conveying wheel 126 is rotatably mounted on the board input box 101, and the front conveying wheel 126 forms a friction transmission with the front friction wheel 125, and the outer cam 127 cooperates with the lifting frame 201, and a toggle transmission belt 121 is wound around the front belt gear 124 and the small transmission wheel 120.

[0031] like Figure 2-Figure 5 As shown, a cutting mechanism is provided on the board feeding box 101, and the cutting mechanism includes a side rail plate 102 and an upper and lower frame 109 fixedly installed on the board feeding box 101, a side slider 103 is slidably installed on the side rail plate 102, a slider spring 108 is provided between the side slider 103 and the side rail plate 102, an upper rotating rod 104 and a lower rotating rod 106 are rotatably installed on the side slider 103, an upper cutting knife 105 is rotatably installed on the upper rotating rod 104, and a lower cutting knife 107 is rotatably installed on the lower rotating rod 106, the upper cutting knife 105 and the lower cutting knife 107 are slidably installed on the upper and lower frames 109 respectively, and the lower cutting knife 107 cooperates with the large cam 118.

[0032] like Figure 2-Figure 5 As shown, a flipping mechanism is provided on the board entry box 101, a tipping plate 110 is rotatably installed on the board entry box 101, a sliding block 129 is slidably installed below the tipping plate 110, a lifting push column 128 is rotatably installed on the sliding block 129, the lifting push column 128 is slidably installed with the board entry box 101, and the lifting push column 128 cooperates with the inner cam 119.

[0033] The long aluminum sheet is manually inserted from the board feeding box 101, and the long aluminum sheet passes between the upper cutter 105 and the lower cutter 107, and the long aluminum sheet hits the front blocking plate 208. At this time, the long aluminum sheet cannot continue to move forward, and the motor 111 rotates to drive the inner gear 112 and the outer gear 113 to rotate, thereby driving the eccentric gear 114 to rotate, thereby driving the eccentric rotating rod 115 to rotate eccentrically, and the outer gear 113 drives the transmission gear 117 to rotate through the oblique transmission belt 116, thereby driving the large cam 118, the inner cam 119 and the small transmission wheel 120 to rotate, and the small transmission wheel 120 rotates to drive the front belt gear by toggling the transmission belt 121 The wheel 124 rotates, thereby driving the front toggle shaft 122, the front transmission gear 123, the front friction wheel 125 and the outer cam 127 to rotate, the front friction wheel 125 drives the front conveying wheel 126 to rotate, the large cam 118 rotates to lift the lower cutter 107, the lower cutter 107 drives the side slider 103 to slide through the lower rotating rod 106, the slider spring 108 is compressed, and the upper cutter 105 is driven to descend through the upper rotating rod 104, so that the lower cutter 107 rises while the upper cutter 105 descends, and the long aluminum sheet is cut by the upper cutter 105 and the lower cutter 107, and the cover plate formed after cutting is located at the dumping position. The cover plate 110 is on the upper surface of the cover plate 110. Since the front end of the cover plate is against the front blocking plate 208 at this time, the size of the cover plate is the same after each cutting. When the large cam 118 lifts the lower cutter 107 to complete the cutting, the notch of the large cam 118 is in the state where the lower cutter 107 disengages, and the slider spring 108 rebounds, driving the lower cutter 107 to descend and the upper cutter 105 to rise and reset. At this time, the inner cam 119 begins to drive the lifting push column 128 to rise, thereby driving the rotating slider 129 to rise. The rotating slider 129 slides along the tipping plate 110 to drive the tipping plate 110 to rotate, so that the tipping plate 110 slopes toward the lifting frame 201. At the same time, the outer cam 12 7 starts to drive the lifting frame 201 to rise, thereby driving the front blocking plate 208 to rise. At this time, the front blocking plate 208 no longer blocks the cover plate, and cooperates with the inclination of the tipping plate 110 and the rotation of the front conveying wheel 126 to convey the cover plate to the bottom of the upper cutting frame 202. When the outer cam 127 is separated from the lifting frame 201, the lifting frame 201 descends under the action of gravity, driving the end blocking plate 207 to descend, blocking the cover plate, so that the cover plate is located between the end blocking plate 207 and the front blocking plate 208. When the cover plate arrives under the upper cutting frame 202, the end blocking plate 207 is already located in front of the cover plate.

[0034] like Figure 6-Figure 8 As shown, the cutting device includes an upper cutting frame 202 fixedly mounted on a lifting frame 201, an upper rack 203 fixedly mounted on the upper cutting frame 202, an intermediate gear 204 rotatably mounted on the board feeding box 101, a lower cutting frame 206 slidably mounted on the board feeding box 101, a lower rack 205 fixedly mounted on the lower cutting frame 206, the lower rack 205 meshes with the intermediate gear 204, the upper rack 203 meshes with the intermediate gear 204, and an end blocking plate 207 and a front blocking plate 208 are provided on the lifting frame 201.

[0035] like Figure 6-Figure 8 As shown, four tangent motors are fixedly mounted on the upper cutting frame 202, and a tangent wheel 211 is fixedly mounted on the motor shaft of the tangent motor; four side cutting motors are fixedly mounted on the lower cutting frame 206, and a side cutting wheel 210 is fixedly mounted on the motor shaft of the side cutting motor.

[0036] like Figure 6-Figure 8 As shown, a delivery mechanism is arranged below the board input box 101, and the delivery mechanism includes a rear conveying shaft 213 rotatably mounted on the board input box 101, a rear friction wheel 214 and a rear belt gear 212 are fixedly mounted on the rear conveying shaft 213, a horizontal transmission belt 215 is wound around the rear belt gear 212 and the front transfer gear 123, and two rear conveying wheels 209 are rotatably mounted on the board input box 101, and the rear conveying wheel 209 forms a friction transmission with the rear friction wheel 214.

[0037] The front transmission gear 123 rotates through the transverse transmission belt 215 to drive the rear belt gear 212 to rotate, thereby driving the rear conveying shaft 213 and the rear friction wheel 214 to rotate. The rear friction wheel 214 rotates to drive the cover plate to move, but the cover plate is blocked by the end blocking plate 207 and cannot move forward. When the cover plate enters between the lifting frame 201 and the board feeding box 101, the lifting frame 201 and the upper cutting frame 202 are in a raised state. When the outer cam 127 is separated from the lifting frame 201, the lifting frame 201 and the upper cutting frame 202 descend under the action of gravity, thereby driving the positive cutting wheel 211 to descend, and passing through the upper cutting frame 2 02 descends, driving the upper rack 203 to descend, driving the middle gear 204 to rotate, thereby driving the lower cutting frame 206 and the lower cutting frame 206 to rise, thereby driving the side cutting wheel 210 to rise, and the rotation of the tangent motor and the side cutting motor respectively drives the tangent wheel 211 and the side cutting wheel 210 to rotate, cutting off the four corners of the cover plate to form a cut cover plate 312, and then when the lifting frame 201 and the upper cutting frame 202 rise again, the end blocking plate 207 leaves the front of the cut cover plate 312, and the cut cover plate 312 is transported to the entry frame 301 through the rotation of the front conveying wheel 126 and the rear conveying wheel 209.

[0038] like Fig. 9 , Fig.10As shown, the welding device includes a welding box 302 fixedly installed below the entry frame 301, an insert plate 303 is slidably installed on the welding box 302, the insert plate 303 is rotatably installed with the eccentric rotating rod 115, one end of a pull rope 304 is fixedly installed on the insert plate 303, a lower pulley 305 and an upper pulley 306 are rotatably installed on the entry frame 301, a gravity frame 307 is slidably installed on the entry frame 301, the pull rope 304 passes around the lower pulley 305 and the upper pulley 306, and the other end of the pull rope 304 is fixedly installed with the gravity frame 307, four welding guns 308 are fixedly installed on the gravity frame 307, two sliding frames 309 are slidably installed on the gravity frame 307, a lower pressure plate 310 is fixedly installed on the sliding frame 309, a strong spring 311 is arranged between the lower pressure plate 310 and the gravity frame 307, and the cover plate after cutting forms a cut cover plate 312 which falls onto the entry frame 301.

[0039] As the eccentric rotating rod 115 rotates, the insert plate 303 slides toward the welding box 302. Under the gravity of the gravity frame 307, the gravity frame 307 and the lower pressing plate 310 descend. After the lower pressing plate 310 descends, the middle part of the cut cover plate 312 is pressed down onto the insert plate 303, and the cut cover plate 312 is folded around. After the lower pressing plate 310 presses the cut cover plate 312 tightly onto the insert plate 303, the gravity frame 307 continues to descend, so that the sliding frame 307 is 09 slides along the gravity frame 307, the strong spring 311 is compressed, and the welding gun 308 starts to weld with the butt welds of the folded four sides of the cut cover plate 312 and the center of the cut cover plate 312. As the eccentric rotating rod 115 continues to rotate, the insert plate 303 is driven to slide toward the outside of the welding box 302, and the pull rope 304 is pulled to pull the gravity frame 307 to the initial position. When the insert plate 303 completely leaves the welding box 302, the welded battery cover plate falls out.

[0040] The working principle of the fully automatic welding device for a battery cover disclosed in the present invention is as follows: manually insert a long aluminum sheet from a plate feeding box 101, the long aluminum sheet passes between an upper cutter 105 and a lower cutter 107, and the long aluminum sheet hits a front blocking plate 208. At this time, the long aluminum sheet cannot continue to move forward, and the motor 111 rotates to drive the inner gear 112 and the outer gear 113 to rotate, thereby driving the eccentric gear 114 to rotate, thereby driving the eccentric rotating rod 115 to rotate eccentrically, and the outer gear 113 drives the transmission gear 117 to rotate through an oblique transmission belt 116, thereby driving the large cam 118, the inner cam 119 and the small transmission wheel 120 to rotate, and the small transmission wheel The rotation of the transmission belt 120 drives the front belt gear 124 to rotate through the toggle transmission belt 121, thereby driving the front toggle shaft 122, the front transfer gear 123, the front friction wheel 125 and the outer cam 127 to rotate, the front friction wheel 125 drives the front conveying wheel 126 to rotate, the large cam 118 rotates to lift the lower cutter 107, the lower cutter 107 drives the side slider 103 to slide through the lower rotating rod 106, the slider spring 108 is compressed, and the upper cutter 105 is driven to descend through the upper rotating rod 104, so that the lower cutter 107 rises while the upper cutter 105 descends, and the long aluminum sheet is cut by the upper cutter 105 and the lower cutter 107. The cover plate formed after cutting is located on the dumping plate 110. Since the front end of the cover plate is against the front blocking plate 208 at this time, the size of the cover plate is the same after each cutting. When the large cam 118 lifts the lower cutter 107 to complete the cutting, the notch of the large cam 118 is in the state where the lower cutter 107 disengages, and the slider spring 108 rebounds, driving the lower cutter 107 to descend and the upper cutter 105 to rise and reset. At this time, the inner cam 119 begins to drive the lifting push column 128 to rise, thereby driving the rotating slider 129 to rise. The rotating slider 129 slides along the dumping plate 110 to drive the dumping plate 110 to rotate, so that the dumping plate 110 slopes toward the lifting frame 201. At the same time, the outer cam 127 starts to drive the lifting frame 201 to rise, thereby driving the front blocking plate 208 to rise. At this time, the front blocking plate 208 no longer blocks the cover plate, and cooperates with the inclination of the tipping plate 110 and the rotation of the front conveying wheel 126 to convey the cover plate to the bottom of the upper cutting frame 202. When the outer cam 127 is separated from the lifting frame 201, the lifting frame 201 descends under the action of gravity, driving the end blocking plate 207 to descend, blocking the cover plate, so that the cover plate is located between the end blocking plate 207 and the front blocking plate 208. When the cover plate arrives under the upper cutting frame 202, the end blocking plate 207 is already located in front of the cover plate.The front transmission gear 123 rotates through the transverse transmission belt 215 to drive the rear belt gear 212 to rotate, thereby driving the rear conveying shaft 213 and the rear friction wheel 214 to rotate. The rear friction wheel 214 rotates to drive the cover plate to move, but the cover plate is blocked by the end blocking plate 207 and cannot move forward. When the cover plate enters between the lifting frame 201 and the board feeding box 101, the lifting frame 201 and the upper cutting frame 202 are in a raised state. When the outer cam 127 is separated from the lifting frame 201, the lifting frame 201 and the upper cutting frame 202 descend under the action of gravity, thereby driving the positive cutting wheel 211 to descend, and passing through the upper cutting frame 2 02 descends, driving the upper rack 203 to descend, driving the middle gear 204 to rotate, thereby driving the lower cutting frame 206 and the lower cutting frame 206 to rise, thereby driving the side cutting wheel 210 to rise, and the rotation of the tangent motor and the side cutting motor respectively drives the tangent wheel 211 and the side cutting wheel 210 to rotate, cutting off the four corners of the cover plate to form a cut cover plate 312, and then when the lifting frame 201 and the upper cutting frame 202 rise again, the end blocking plate 207 leaves the front of the cut cover plate 312, and the cut cover plate 312 is transported to the entry frame 301 through the rotation of the front conveying wheel 126 and the rear conveying wheel 209. As the eccentric rotating rod 115 rotates, the insert plate 303 slides toward the welding box 302. Under the gravity of the gravity frame 307, the gravity frame 307 and the lower pressing plate 310 descend. After the lower pressing plate 310 descends, the middle part of the cut cover plate 312 is pressed down onto the insert plate 303, and the cut cover plate 312 is folded around. After the lower pressing plate 310 presses the cut cover plate 312 tightly onto the insert plate 303, the gravity frame 307 continues to descend, so that the sliding frame 307 is 09 slides along the gravity frame 307, the strong spring 311 is compressed, and the welding gun 308 starts to weld with the butt welds of the folded four sides of the cut cover plate 312 and the center of the cut cover plate 312. As the eccentric rotating rod 115 continues to rotate, the insert plate 303 is driven to slide toward the outside of the welding box 302, and the pull rope 304 is pulled to pull the gravity frame 307 to the initial position. When the insert plate 303 completely leaves the welding box 302, the welded battery cover plate falls out.

[0041] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A fully automatic welding device for a battery cover, including a plate feeding device, characterized in that: The plate feeding device comprises a plate feeding box (101), the plate feeding device is used to place the battery cover plate to be processed, the plate feeding device is provided with a cutting device and a welding device, the cutting device comprises a lifting frame (201), the lifting frame (201) is slidably mounted on the plate feeding box (101), the cutting device is used to cut the cover plate, the welding device comprises an entry frame (301), the entry frame (301) is fixedly mounted on the plate feeding box (101), and the welding device is used to weld the battery cover plate into shape; The board feeding device comprises a motor (111) arranged below the board feeding box (101); an internal gear (112) is fixedly mounted on the motor shaft of the motor (111); an external gear (113) is fixedly mounted on the internal gear (112); an eccentric gear (114) is rotatably mounted on the board feeding box (101); an eccentric rotating rod (115) is rotatably mounted on the eccentric gear (114); the internal gear (112) meshes with the eccentric gear (114); an internal cam (119) is rotatably mounted on the board feeding box (101); a large cam (118), a small transmission wheel (120) and a transmission gear (117) are fixedly mounted on the internal cam (119); an oblique transmission belt (116) is wound around the transmission gear (117) and the external gear (113).

2. The fully automatic welding device for a battery cover according to claim 1 is characterized in that: The board entry box (101) is provided with a lifting mechanism, and the lifting mechanism comprises a front shifting shaft (122) rotatably mounted on the board entry box (101), a front transmission gear (123), a front belt gear (124), a front friction wheel (125) and an external cam (127) being fixedly mounted on the front shifting shaft (122), a front conveying wheel (126) being rotatably mounted on the board entry box (101), the front conveying wheel (126) and the front friction wheel (125) forming a friction transmission, the external cam (127) cooperating with the lifting frame (201), and a shifting transmission belt (121) being wound around the front belt gear (124) and the small transmission wheel (120).

3. The fully automatic welding device for a battery cover according to claim 1 is characterized in that: The board inlet box (101) is provided with a cutting mechanism, and the cutting mechanism comprises a side rail plate (102) and an upper and lower frame (109) fixedly mounted on the board inlet box (101); a side slider (103) is slidably mounted on the side rail plate (102); a slider spring (108) is arranged between the side slider (103) and the side rail plate (102); an upper rotating rod (104) and a lower rotating rod (106) are rotatably mounted on the side slider (103); an upper cutting knife (105) is rotatably mounted on the upper rotating rod (104); a lower cutting knife (107) is rotatably mounted on the lower rotating rod (106); the upper cutting knife (105) and the lower cutting knife (107) are slidably mounted on the upper and lower frames (109) respectively, and the lower cutting knife (107) cooperates with a large cam (118).

4. The fully automatic welding device for a battery cover according to claim 1 is characterized in that: The board entry box (101) is provided with a turnover mechanism, a tipping plate (110) is rotatably mounted on the board entry box (101), a rotating slider (129) is slidably mounted below the tipping plate (110), a lifting push column (128) is rotatably mounted on the rotating slider (129), the lifting push column (128) is slidably mounted on the board entry box (101), and the lifting push column (128) cooperates with the inner cam (119).

5. The fully automatic welding device for a battery cover according to claim 1 is characterized in that: The cutting device comprises an upper cutting frame (202) fixedly mounted on a lifting frame (201), an upper rack (203) fixedly mounted on the upper cutting frame (202), an intermediate gear (204) rotatably mounted on a board feeding box (101), a lower cutting frame (206) slidably mounted on the board feeding box (101), a lower rack (205) fixedly mounted on the lower cutting frame (206), the lower rack (205) meshing with the intermediate gear (204), the upper rack (203) meshing with the intermediate gear (204), and an end blocking plate (207) and a front blocking plate (208) are provided on the lifting frame (201).

6. A fully automatic welding device for a battery cover according to claim 5, characterized in that: Four tangent motors are fixedly mounted on the upper cutting frame (202), and tangent wheels (211) are fixedly mounted on the motor shafts of the tangent motors. Four side cutting motors are fixedly mounted on the lower cutting frame (206), and side cutting wheels (210) are fixedly mounted on the motor shafts of the side cutting motors.

7. The fully automatic welding device for a battery cover according to claim 5 is characterized in that: A delivery mechanism is arranged below the board entry box (101), and the delivery mechanism comprises a rear conveying shaft (213) rotatably mounted on the board entry box (101), a rear friction wheel (214) and a rear belt gear (212) being fixedly mounted on the rear conveying shaft (213), a transverse transmission belt (215) being wound around the rear belt gear (212) and the front transmission gear (123), and two rear conveying wheels (209) being rotatably mounted on the board entry box (101), and the rear conveying wheels (209) and the rear friction wheels (214) forming a friction transmission.

8. The fully automatic welding device for a battery cover according to claim 1 is characterized in that: The welding device comprises a welding box (302) fixedly mounted below an entry frame (301), an insertion plate (303) slidably mounted on the welding box (302), the insertion plate (303) and the eccentric rotating rod (115) being rotatably mounted, one end of a pull rope (304) being fixedly mounted on the insertion plate (303), a lower pulley (305) and an upper pulley (306) being rotatably mounted on the entry frame (301), a gravity frame (307) being slidably mounted on the entry frame (301), the pull rope (304) passing around the lower pulley ( The pull rope (304) is fixedly mounted on a gravity frame (307), and four welding guns (308) are fixedly mounted on the gravity frame (307). Two sliding frames (309) are slidably mounted on the gravity frame (307). A lower pressing plate (310) is fixedly mounted on the sliding frame (309). A strong spring (311) is arranged between the lower pressing plate (310) and the gravity frame (307). The cover plate after cutting forms a cut cover plate (312) and falls onto the entry frame (301).

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