A battery busbar welding device

Abstract

The present invention discloses a battery bus welding device, which belongs to the technical field of bus welding, and includes a frame device, the frame device is used to drive the battery to be welded to move, and the frame device is provided with two discharge devices and two resistance welding devices, the discharge device is used to discharge the bus to be welded onto the battery electrode, and the resistance welding device is used to weld the bus to the battery electrode. The conveying mechanism provided by the present invention conveys the battery, and the placement device and the resistance welding device automatically place the bus on the battery electrode, and then weld the bus to the electrode. At the same time, the battery is straightened by the limiting mechanism during the movement, and the bus is aligned with the electrode by the straightening mechanism, with high automation and good continuity; the positions of the placement frame, the placement frame, the welding frame, the lifting block, the slide frame and the lower pressure frame can be adjusted to realize welding of batteries of different sizes and buses of different lengths, and the adaptability is wide.

Description

Technical Field

[0001] The invention relates to the technical field of busbar welding, and in particular to a battery busbar welding device. Background Art

[0002] The battery bus is an important connecting component in the battery pack. It is mainly used to connect multiple batteries together in a specific way to achieve power distribution and management. The bus can also serve as a connection point between batteries, provide mechanical support, and ensure the safety of battery connection in design to prevent short circuits and electrical failures. Bus welding is an important technology for connecting the battery bus to the battery electrode to ensure the conductivity and stability of current when passing through the electrode. The battery bus welding in the prior art is mainly done by manually placing the bus on the electrode and then welding it with an automatic welding machine. The manual placement is labor-intensive, the placement accuracy is low, and the entire welding process cannot be carried out automatically. At the same time, it is usually carried out in the form of arc welding, which will produce a lot of dust and cause harm to personnel health. Summary of the invention

[0003] In view of the above technical problems, the technical solution adopted by the present invention is: a battery bus welding device, including a frame device, the frame device includes a frame, an upper plate is fixedly installed on the frame, the frame device is used to drive the battery to be welded to move, the frame device is provided with two discharge devices and two resistance welding devices, the discharge device includes a placement rack, the placement rack is fixedly installed on the upper plate, the discharge device is used to discharge the bus to be welded onto the electrode of the battery, the resistance welding device includes a slide, the slide is fixedly installed on the upper plate, and the resistance welding device is used to weld the bus to the electrode of the battery.

[0004] Furthermore, the frame device includes a bottom motor fixedly mounted on the frame, a motor wheel fixedly mounted on the motor shaft of the bottom motor, a long shaft rotatably mounted on the frame, an intermediate wheel and an outer wheel fixedly mounted on the long shaft, a bottom transmission belt wrapped around the intermediate wheel and the motor wheel, and a vertical transmission belt wrapped around the outer wheel.

[0005] Furthermore, a conveying mechanism is provided on the upper plate, and the conveying mechanism includes a conveying motor fixedly mounted on the upper plate, a motor gear is fixedly mounted on the motor shaft of the conveying motor, a driving wheel and a driven wheel are rotatably mounted on the upper plate, a conveying bevel gear is fixedly mounted on the driving wheel, the motor gear is meshed with the conveying bevel gear, a conveyor belt is wrapped around the driven wheel and the driving wheel, a plurality of supporting wheels are rotatably mounted on the upper plate for providing support for the conveyor belt, a battery is placed on the conveyor belt, six battery packs are arranged inside the battery, and two electrodes, namely a cathode and an anode, are fixedly mounted on the battery pack.

[0006] Furthermore, two sets of limiting mechanisms are arranged on the upper plate, and the limiting mechanisms include a centering frame fixedly mounted on the upper plate, a centering sliding column slidably mounted on the centering frame, a centering plate fixedly mounted on the centering sliding column, a centering spring arranged between the centering plate and the centering frame, and the battery is located between the two centering plates.

[0007] The motor wheel can be driven to rotate by rotating the bottom motor, the intermediate wheel, the long shaft and the outer wheel can be driven to rotate by the bottom transmission belt, and the screw wheel can be driven to rotate by the vertical transmission belt.

[0008] Place the battery on the conveyor belt. The rotation of the conveying motor drives the motor gear to rotate, thereby driving the conveying bevel gear and the driving wheel to rotate, thereby driving the conveyor belt to move. Due to the heavy weight of the battery, the conveyor belt is supported by the supporting wheel. The movement of the conveyor belt drives the battery to move, and the battery is centered by the centering plate. For batteries of different sizes, the centering plate and the centering slide column will be pushed to slide outward, and the centering spring will be compressed.

[0009] Furthermore, the discharge device includes a placement motor fixedly mounted on a placement rack, the placement rack is provided with an adjustment slot, the placement rack is fixedly mounted on the upper plate by bolts and the adjustment slot, the installation position of the placement rack can be adjusted by the adjustment slot to adapt to batteries of different widths, a turntable is fixedly mounted on the motor shaft of the placement motor, an eccentric column is eccentrically fixedly mounted on the turntable, an adjustment bar is fixedly mounted on the placement rack, a long slot is provided on the adjustment bar, a placement frame is fixedly mounted in the long slot of the adjustment bar by bolts, a plurality of bus bars are placed in the placement frame, and the position of the placement frame relative to the adjustment bar can be adjusted according to different bus bar sizes.

[0010] Furthermore, a pushing mechanism is provided on the placement frame, and the pushing mechanism includes two pushing plates slidably installed in the placement frame, and avoidance grooves are provided on the pushing plates. A sliding column is fixedly installed on the pushing plates, and a slot frame is slidably installed outside the eccentric column. An upper slide is fixedly installed on the slot frame, and the eccentric column can slide and rotate in the slot of the slot frame. A slide groove is provided on the upper slide, and the sliding column slides in the slide groove.

[0011] Furthermore, a one-way swivel block is rotatably mounted on the placement frame, the one-way swivel block can only be swiveled outwards, and the width of the avoidance groove is greater than the width of the one-way swivel block.

[0012] When the storage battery and electrode where the busbar needs to be placed arrive under the placement frame, the placement motor rotates to drive the turntable to rotate, and the slot frame, the upper slide and the ejection plate are driven to slide back and forth along the inside and outside of the placement frame through the eccentric column, and the busbar at the bottom of the placement frame is brought out through the ejection plate. The busbar is located on the ejection plate, and during the outward movement of the ejection plate, the one-way rotating block is pushed to rotate outward by the busbar on the ejection plate, and then the ejection plate starts to move inward, driving the busbar to contact the one-way rotating block. At this time, the one-way rotating block cannot rotate inward, and the one-way rotating block blocks the busbar. The ejection plate will not be blocked by the one-way rotating block due to the avoidance groove. The push plate is then pushed back into the placement frame, and the bus is blocked by the one-way rotating block. The bus falls on two adjacent electrodes. After the push plate takes the bus out, the next bus will fall onto the push plate. Due to the presence of the placement frame, the bus will be blocked by the placement frame during the inward sliding of the push plate. The placement motor rotates to drive the turntable to rotate one circle to achieve one extension and retraction of the push plate, so that a bus is placed on the electrode. Except for the battery packs on both sides of the battery, buses are placed on adjacent electrodes of the other battery packs, and only one electrode of the battery packs on both sides has a bus placed on it.

[0013] Furthermore, the resistance welding device includes a screw rod rotatably mounted on a slide, a screw wheel fixedly mounted on the screw rod, a vertical transmission belt wrapped around the screw wheel and the outer wheel, a welding frame slidably mounted on the slide, the welding frame and the screw rod form a threaded transmission, an electric cylinder fixedly mounted on the welding frame, a lifting block fixedly mounted on the top of the electric cylinder, an observation instrument fixedly mounted on the lifting block, a vertical slide rail fixedly mounted on the welding frame, and the lifting block and the vertical slide rail are slidably mounted.

[0014] Furthermore, the welding frame is provided with a straightening mechanism, and the straightening mechanism includes a fixed guide frame fixedly mounted on the welding frame, an outer guide frame and an inner guide frame are slidably mounted on the fixed guide frame, an outer spring is provided between the outer guide frame and the fixed guide frame, and an inner spring is provided between the inner guide frame and the fixed guide frame.

[0015] Furthermore, the lifting block is provided with a hot melt mechanism, and the hot melt mechanism includes a horizontal slide rail fixedly installed on the lifting block, two adjusting screws are rotatably installed on the lifting block, and fine-tuning knobs are fixedly installed on the adjusting screws, a slide is slidably installed on the horizontal slide rail, two lower pressure racks are slidably installed on the slide, a heating block is fixedly installed at the bottom of the lower pressure rack, a pull rod is slidably installed on the slide, a pull rod spring is arranged between the pull rod and the slide, an internal thread card is fixedly installed on the pull rod, an internal thread is arranged on the internal thread card, and a threaded transmission is formed between the internal thread card and the adjusting screw, a slide rod is slidably installed on the slide, a card is fixedly installed on the slide, a slide rod spring is arranged between the card and the slide, and an eccentric card rod is eccentrically rotatably installed on the slide.

[0016] The rotation of the screw wheel drives the screw rod to rotate, thereby driving the welding frame to slide along the slide seat, thereby adjusting the position of the welding frame to adapt to batteries of different sizes; the initial state of the slide rod spring is a compressed state, and the card presses the lower pressure frame on the slide frame. When the height position of the lower pressure frame needs to be adjusted, the eccentric clamping rod can be rotated, and the slide rod spring rebounds, so that the card no longer presses the lower pressure frame tightly. At this time, the lower pressure frame can be slid up and down to adjust the height of the lower pressure frame. After the adjustment is completed, the eccentric clamping rod is rotated, and the eccentric clamping rod drives the card to press the lower pressure frame on the slide frame, and the slide rod spring is compressed; when the specific distance between the two slides needs to be adjusted, the pull rod is pulled upward, the pull rod spring is compressed, and the internal thread card is separated from the adjusting screw rod. At this time, the position of the slide frame can be manually adjusted, and then the pull rod is released, and the pull rod spring rebounds to drive the internal thread card to descend, and the internal thread card cooperates with the adjusting screw rod again, and by rotating the fine-tuning knob and the adjusting screw rod, the internal thread card and the slide frame are driven to slide through the thread transmission, thereby fine-tuning the distance between the two slides.

[0017] When the battery moves to the inner guide frame and the outer guide frame, the bus contacts the inclined surfaces of the outer guide frame and the inner guide frame, and the edge of the bus is aligned with the edge of the electrode through the outer guide frame and the inner guide frame. The outer guide frame and the inner guide frame can slide relative to the fixed guide frame to adapt to buses of different sizes. When the bus and the electrode reach under the heating block, the electric cylinder contracts and drives the lifting block to descend, thereby driving the lower pressure frame and the heating block to descend. The heating block contacts the bus and the bus and the electrode are welded by heating the heating block. The observation instrument is used to determine whether the heating block is in contact with the bus. If there is no bus on the electrode under the heating block, the heating block will not start. When the welding of the bus and the electrode is completed, the conveyor belt drives the battery forward so that the next bus and electrode to be welded arrive under the heating block.

[0018] Compared with the prior art, the present invention has the following beneficial effects: (1) The conveying mechanism provided in the present invention can convey the battery, and after the bus is automatically placed on the electrode of the battery in cooperation with the placement device and the resistance welding device, the bus is welded to the electrode. At the same time, the battery is straightened by the limiting mechanism during the movement, and the bus is aligned with the electrode by the straightening mechanism. The automation degree is high, the continuity is good, and the positioning accuracy of the bus is high. (2) The positions of the placement rack, placement frame, welding rack, lifting block, slide and lower pressing rack provided in the present invention can be adjusted, so that the device can weld batteries of different sizes and buses of different lengths, and has wide adaptability. (3) When adjusting the slide provided in the present invention, it can be adjusted first by a coarse adjustment method, and then fine-tuned by a fine adjustment method, so that the position of the heating block is relative to the position of the bus and the electrode, and the adjustment is convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0020] Figure 2 The structure of the frame device of the present invention is shown in FIG. Figure 1 .

[0021] Figure 3 The structure of the frame device of the present invention is shown in FIG. Figure 2 .

[0022] Figure 4 The structure of the placement device of the present invention is shown in FIG. Figure 1 .

[0023] Figure 5 The structure of the placement device of the present invention is shown in FIG. Figure 2 .

[0024] Figure 6 For the present invention Figure 5 A local enlarged schematic diagram of point A in the middle.

[0025] Figure 7 The structure of the placement device of the present invention is shown in FIG. Figure 3 .

[0026] Figure 8 For the present invention Figure 7 A local enlarged schematic diagram of point B in the middle.

[0027] Fig. 9 The structure of the resistance welding device of the present invention is shown in FIG. Figure 1 .

[0028] Fig.10 The structure of the resistance welding device of the present invention is shown in FIG. Figure 2 .

[0029] Fig.11 The structure of the resistance welding device of the present invention is shown in FIG. Figure 3 .

[0030] Fig.12 It is a schematic diagram of the structure of the straightening mechanism of the present invention.

[0031] Fig.13 The structure of the resistance welding device of the present invention is shown in FIG. Figure 4 .

[0032] Fig.14 It is a schematic diagram of the hot melt mechanism structure of the present invention.

[0033] Figure numerals: 101-frame; 102-upper plate; 103-bottom motor; 104-motor wheel; 105-bottom transmission belt; 106-long shaft; 107-middle wheel; 108-outer wheel; 109-vertical transmission belt; 110-centering frame; 111-centering sliding column; 112-centering spring; 113-centering plate; 114-battery; 115-electrode; 116-transmission motor; 117-motor gear; 118-transmission bevel gear; 119-driving wheel; 120-driven wheel; 121-conveyor belt; 122-support wheel; 201-placing frame; 202-adjusting slot; 203-placing motor; 204-adjusting bar; 205-placing frame; 206-bus; 207-turntable; 208-eccentric column; 209-slot frame ;210-upper slide;211-ejection plate;212-slide column;213-one-way rotating block;214-avoidance groove;215-slide groove;301-slide seat;302-screw rod;303-screw rod wheel;304-welding frame;305-electric cylinder;306-lifting block;307-fixed guide frame;308-outer guide frame;309-inner guide frame;310-outer spring;311-inner spring;312-observation instrument;313-adjusting screw rod;314-vertical slide rail;315-fine-tuning knob;316-slide;317-pull rod;318-pull rod spring;319-horizontal slide rail;320-lower pressure frame;321-heating block;322-eccentric clamp rod;323-internal thread clamp;324-slide rod;325-card;326-slide rod spring. DETAILED DESCRIPTION

[0034] The specific implementation of the present invention will be further described below in conjunction with the accompanying drawings.

[0035] Example: Reference Figure 1-Figure 14 A battery bus welding device includes a frame device, the frame device includes a frame 101, an upper plate 102 is fixedly mounted on the frame 101, the frame device is used to drive the battery to be welded to move, the frame device is provided with two discharge devices and two resistance welding devices, the discharge device includes a placement rack 201, the placement rack 201 is fixedly mounted on the upper plate 102, the discharge device is used to discharge the bus to be welded onto the battery electrode, the resistance welding device includes a slide 301, the slide 301 is fixedly mounted on the upper plate 102, and the resistance welding device is used to weld the bus to the battery electrode.

[0036] like Figure 2 , Figure 3As shown, the frame device includes a bottom motor 103 fixedly mounted on the frame 101, a motor wheel 104 is fixedly mounted on the motor shaft of the bottom motor 103, a long shaft 106 is rotatably mounted on the frame 101, an intermediate wheel 107 and an outer wheel 108 are fixedly mounted on the long shaft 106, a bottom transmission belt 105 is wound around the intermediate wheel 107 and the motor wheel 104, and a vertical transmission belt 109 is wound around the outer wheel 108.

[0037] like Figure 2 , Figure 3 As shown, a conveying mechanism is arranged on the upper plate 102, and the conveying mechanism includes a conveying motor 116 fixedly mounted on the upper plate 102, a motor gear 117 is fixedly mounted on the motor shaft of the conveying motor 116, a driving wheel 119 and a driven wheel 120 are rotatably mounted on the upper plate 102, a conveying bevel gear 118 is fixedly mounted on the driving wheel 119, the motor gear 117 is meshed with the conveying bevel gear 118, a conveying belt 121 is wound around the driven wheel 120 and the driving wheel 119, a plurality of supporting wheels 122 are rotatably mounted on the upper plate 102 for providing support for the conveying belt 121, a storage battery 114 is placed on the conveying belt 121, six groups of battery packs are arranged inside the storage battery 114, and two electrodes 115, which are cathode and anode, are fixedly mounted on the battery pack.

[0038] like Figure 2 , Figure 3 As shown, two sets of limiting mechanisms are arranged on the upper plate 102, and the limiting mechanisms include a centering frame 110 fixedly mounted on the upper plate 102, a centering sliding column 111 is slidably mounted on the centering frame 110, a centering plate 113 is fixedly mounted on the centering sliding column 111, a centering spring 112 is arranged between the centering plate 113 and the centering frame 110, and a battery 114 is located between the two centering plates 113.

[0039] The motor wheel 104 can be driven to rotate by the bottom motor 103 , and the intermediate wheel 107 , the long shaft 106 and the outer wheel 108 can be driven to rotate by the bottom transmission belt 105 , thereby driving the screw wheel 303 to rotate by the vertical transmission belt 109 .

[0040] The battery 114 is placed on the conveyor belt 121. The conveying motor 116 rotates to drive the motor gear 117 to rotate, thereby driving the conveying bevel gear 118 and the driving wheel 119 to rotate, thereby driving the conveyor belt 121 to move. Due to the heavy weight of the battery 114, the conveyor belt 121 is supported by the support wheel 122. The movement of the conveyor belt 121 drives the battery 114 to move, and the battery 114 is centered by the centering plate 113. For batteries 114 of different sizes, the centering plate 113 and the centering slide column 111 will be pushed to slide outward, and the centering spring 112 will be compressed.

[0041] like Figure 4-Figure 8As shown, the discharge device includes a placement motor 203 fixedly mounted on a placement rack 201, an adjustment slot 202 is provided on the placement rack 201, the placement rack 201 is fixedly mounted on the upper plate 102 by bolts and the adjustment slot 202, the installation position of the placement rack 201 can be adjusted by adjusting the slot 202 to adapt to batteries 114 of different widths, a turntable 207 is fixedly mounted on the motor shaft of the placement motor 203, an eccentric column 208 is eccentrically fixedly mounted on the turntable 207, an adjustment bar 204 is fixedly mounted on the placement rack 201, a long slot is provided on the adjustment bar 204, a placement frame 205 is fixedly mounted in the long slot of the adjustment bar 204 by bolts, a plurality of bus bars 206 are placed in the placement frame 205, and the position of the placement frame 205 relative to the adjustment bar 204 can be adjusted according to different bus bar 206 sizes.

[0042] like Figure 4-Figure 8 As shown, a pushing mechanism is provided on the placement frame 205, and the pushing mechanism includes two pushing plates 211 slidably installed in the placement frame 205, and an avoidance groove 214 is provided on the pushing plates 211. A sliding column 212 is fixedly installed on the pushing plates 211, and a slot frame 209 is slidably installed outside the eccentric column 208. An upper slide 210 is fixedly installed on the slot frame 209. The eccentric column 208 can slide and rotate in the slot of the slot frame 209. A slide groove 215 is provided on the upper slide 210, and the sliding column 212 slides in the slide groove 215.

[0043] like Figure 4-Figure 8 As shown, a one-way rotating block 213 is rotatably mounted on the placement frame 205 . The one-way rotating block 213 can only rotate outwards, and the width of the avoidance groove 214 is greater than the width of the one-way rotating block 213 .

[0044] When the storage battery 114 and the electrode 115 on which the busbar 206 needs to be placed arrive under the placement frame 205, the placement motor 203 rotates to drive the turntable 207 to rotate, and drives the slot frame 209, the upper slide 210 and the ejection plate 211 to slide back and forth along the placement frame 205 through the eccentric column 208, and the busbar 206 at the bottom of the placement frame 205 is brought out by the ejection plate 211. The busbar 206 is located on the ejection plate 211. During the outward movement of the ejection plate 211, the busbar 206 on the ejection plate 211 pushes the one-way rotating block 213 to rotate outward, and then the ejection plate 211 starts to move inward, driving the busbar 206 to contact the one-way rotating block 213. At this time, the one-way rotating block 213 cannot rotate inward, and the one-way rotating block 213 blocks the busbar 206. The ejection plate 211 is Because it will not be blocked by the one-way rotating block 213, the ejection plate 211 then returns to the placement frame 205, and the bus 206 is blocked by the one-way rotating block 213. The bus 206 falls on two adjacent electrodes 115. After the ejection plate 211 brings out the bus 206, the next bus 206 will fall on the ejection plate 211. Due to the existence of the placement frame 205, when the ejection plate 211 slides inward, the bus 206 will be blocked by the placement frame 205. The placement motor 203 rotates and drives the turntable 207 to rotate one circle to achieve one extension and retraction of the ejection plate 211, so that a bus 206 is placed on the electrode 115. Except for the battery packs on both sides of the battery 114, the buses 206 are placed on the adjacent electrodes 115 of the other battery packs, and only one electrode 115 of the battery packs on both sides has a bus 206 placed on it.

[0045] like Figure 9-14 As shown, the resistance welding device includes a screw rod 302 rotatably mounted on a slide 301, a screw wheel 303 is fixedly mounted on the screw rod 302, a vertical transmission belt 109 is wound around the screw wheel 303 and the outer wheel 108, a welding frame 304 is slidably mounted on the slide 301, the welding frame 304 and the screw rod 302 form a threaded transmission, an electric cylinder 305 is fixedly mounted on the welding frame 304, a lifting block 306 is fixedly mounted on the top of the electric cylinder 305, an observation instrument 312 is fixedly mounted on the lifting block 306, a vertical slide rail 314 is fixedly mounted on the welding frame 304, and the lifting block 306 and the vertical slide rail 314 are slidably mounted.

[0046] like Figure 9-14 As shown, the welding frame 304 is provided with a straightening mechanism, which includes a fixed guide frame 307 fixedly mounted on the welding frame 304, an outer guide frame 308 and an inner guide frame 309 slidably mounted on the fixed guide frame 307, an outer spring 310 is provided between the outer guide frame 308 and the fixed guide frame 307, and an inner spring 311 is provided between the inner guide frame 309 and the fixed guide frame 307.

[0047] like Figure 9-14As shown, a hot melt mechanism is provided on the lifting block 306, and the hot melt mechanism includes a horizontal slide rail 319 fixedly installed on the lifting block 306, two adjusting screw rods 313 are rotatably installed on the lifting block 306, and a fine adjustment knob 315 is fixedly installed on the adjusting screw rods 313, a slide 316 is slidably installed on the horizontal slide rail 319, and two lower pressure racks 320 are slidably installed on the slide 316, and a heating block 321 is fixedly installed at the bottom of the lower pressure rack 320, and a pull rod 31 is slidably installed on the slide 316. 7. A pull rod spring 318 is provided between the pull rod 317 and the slide 316. An internal thread clamp 323 is fixedly installed on the pull rod 317. The internal thread clamp 323 is provided with an internal thread. The internal thread clamp 323 and the adjusting screw 313 form a threaded transmission. A slide rod 324 is slidably installed on the slide 316. A card 325 is fixedly installed on the slide rod 324. A slide rod spring 326 is provided between the card 325 and the slide 316. An eccentric clamp rod 322 is eccentrically rotated on the slide rod 324.

[0048] The screw wheel 303 rotates to drive the screw rod 302 to rotate, thereby driving the welding frame 304 to slide along the slide seat 301, so as to adjust the position of the welding frame 304 to adapt to batteries 114 of different sizes; the slide rod spring 326 is initially in a compressed state, and the card 325 presses the lower pressure frame 320 onto the slide 316. When the height of the lower pressure frame 320 needs to be adjusted, the eccentric clamping rod 322 can be rotated, and the slide rod spring 326 rebounds, so that the card 325 no longer presses the lower pressure frame 320. At this time, the lower pressure frame 320 can be slid up and down to adjust the height of the lower pressure frame 320. After the adjustment is completed, the eccentric clamping rod 322 is rotated, and the eccentric clamping rod 322 drives the card 3 25 Press the lower pressure frame 320 against the slide 316, and the slide spring 326 is compressed; when the distance between the two slides 316 needs to be adjusted, pull the pull rod 317 upwards, the pull rod spring 318 is compressed, so that the internal thread clamp 323 is separated from the adjusting screw 313, and the position of the slide 316 can be manually adjusted at this time, and then the pull rod 317 is released, the pull rod spring 318 rebounds and drives the internal thread clamp 323 to descend, and the internal thread clamp 323 cooperates with the adjusting screw 313 again, and by turning the fine-tuning knob 315 and the adjusting screw 313, the internal thread clamp 323 and the slide 316 are driven to slide through the thread transmission, thereby fine-tuning the distance between the two slides 316.

[0049] When the battery 114 moves to the inner guide frame 309 and the outer guide frame 308, the bus 206 contacts the inclined surfaces of the outer guide frame 308 and the inner guide frame 309, and the edge of the bus 206 is aligned with the edge of the electrode 115 through the outer guide frame 308 and the inner guide frame 309. The outer guide frame 308 and the inner guide frame 309 can slide relative to the fixed guide frame 307 to accommodate buses 206 of different sizes. When the bus 206 and the electrode 115 reach the bottom of the heating block 321, the electric cylinder 305 contracts to drive the lifting block 306 to descend, thereby driving the lower pressing frame 320 and the heating block 321 descend, the heating block 321 contacts the bus 206, and the bus 206 and the electrode 115 are welded by heating with the heating block 321. The observation instrument 312 determines whether the heating block 321 contacts the bus 206. If there is no bus 206 on the electrode 115 below the heating block 321, the heating block 321 is not started. After the welding of the bus 206 and the electrode 115 is completed, the conveyor belt 121 drives the battery 114 forward, so that the next bus 206 and electrode 115 to be welded arrive under the heating block 321.

[0050] The working principle of a battery bus welding device disclosed in the present invention is: the motor wheel 104 can be driven to rotate by rotating the bottom motor 103, and the intermediate wheel 107, the long shaft 106 and the outer wheel 108 can be driven to rotate by the bottom transmission belt 105, thereby driving the screw wheel 303 to rotate by the vertical transmission belt 109. The screw wheel 303 rotates to drive the screw rod 302 to rotate, thereby driving the welding frame 304 to slide along the slide seat 301, so as to adjust the position of the welding frame 304 to adapt to batteries 114 of different sizes; the slide rod spring 326 is initially in a compressed state, and the card 325 presses the lower pressure frame 320 onto the slide 316. When the height of the lower pressure frame 320 needs to be adjusted, the eccentric clamping rod 322 can be rotated, and the slide rod spring 326 rebounds, so that the card 325 no longer presses the lower pressure frame 320. At this time, the lower pressure frame 320 can be slid up and down to adjust the height of the lower pressure frame 320. After the adjustment is completed, the eccentric clamping rod 322 is rotated, and the eccentric clamping rod 322 drives the card 3 25 Press the lower pressure frame 320 against the slide 316, and the slide spring 326 is compressed; when the distance between the two slides 316 needs to be adjusted, pull the pull rod 317 upwards, the pull rod spring 318 is compressed, so that the internal thread clamp 323 is separated from the adjusting screw 313, and the position of the slide 316 can be manually adjusted at this time, and then the pull rod 317 is released, the pull rod spring 318 rebounds and drives the internal thread clamp 323 to descend, and the internal thread clamp 323 cooperates with the adjusting screw 313 again, and by turning the fine-tuning knob 315 and the adjusting screw 313, the internal thread clamp 323 and the slide 316 are driven to slide through the thread transmission, thereby fine-tuning the distance between the two slides 316.

[0051] The battery 114 is placed on the conveyor belt 121. The conveying motor 116 rotates to drive the motor gear 117 to rotate, thereby driving the conveying bevel gear 118 and the driving wheel 119 to rotate, thereby driving the conveyor belt 121 to move. Due to the heavy weight of the battery 114, the conveyor belt 121 is supported by the support wheel 122. The movement of the conveyor belt 121 drives the battery 114 to move, and the battery 114 is centered by the centering plate 113. For batteries 114 of different sizes, the centering plate 113 and the centering slide column 111 will be pushed to slide outward, and the centering spring 112 will be compressed. When the storage battery 114 and the electrode 115 on which the busbar 206 needs to be placed arrive under the placement frame 205, the placement motor 203 rotates to drive the turntable 207 to rotate, and drives the slot frame 209, the upper slide 210 and the ejection plate 211 to slide back and forth along the placement frame 205 through the eccentric column 208, and the busbar 206 at the bottom of the placement frame 205 is brought out by the ejection plate 211. The busbar 206 is located on the ejection plate 211. During the outward movement of the ejection plate 211, the busbar 206 on the ejection plate 211 pushes the one-way rotating block 213 to rotate outward, and then the ejection plate 211 starts to move inward, driving the busbar 206 to contact the one-way rotating block 213. At this time, the one-way rotating block 213 cannot rotate inward, and the one-way rotating block 213 blocks the busbar 206. The ejection plate 211 is Because it will not be blocked by the one-way rotating block 213, the ejection plate 211 then returns to the placement frame 205, and the bus 206 is blocked by the one-way rotating block 213. The bus 206 falls on two adjacent electrodes 115. After the ejection plate 211 brings out the bus 206, the next bus 206 will fall on the ejection plate 211. Due to the existence of the placement frame 205, when the ejection plate 211 slides inward, the bus 206 will be blocked by the placement frame 205. The placement motor 203 rotates and drives the turntable 207 to rotate one circle to achieve one extension and retraction of the ejection plate 211, so that a bus 206 is placed on the electrode 115. Except for the battery packs on both sides of the battery 114, the buses 206 are placed on the adjacent electrodes 115 of the other battery packs, and only one electrode 115 of the battery packs on both sides has a bus 206 placed on it.When the battery 114 moves to the inner guide frame 309 and the outer guide frame 308, the bus 206 contacts the inclined surfaces of the outer guide frame 308 and the inner guide frame 309, and the edge of the bus 206 is aligned with the edge of the electrode 115 through the outer guide frame 308 and the inner guide frame 309. The outer guide frame 308 and the inner guide frame 309 can slide relative to the fixed guide frame 307 to accommodate buses 206 of different sizes. When the bus 206 and the electrode 115 reach the bottom of the heating block 321, the electric cylinder 305 contracts to drive the lifting block 306 to descend, thereby driving the lower pressing frame 320 and the heating block 321 descend, the heating block 321 contacts the bus 206, and the bus 206 and the electrode 115 are welded by heating with the heating block 321. The observation instrument 312 determines whether the heating block 321 contacts the bus 206. If there is no bus 206 on the electrode 115 below the heating block 321, the heating block 321 is not started. After the welding of the bus 206 and the electrode 115 is completed, the conveyor belt 121 drives the battery 114 forward, so that the next bus 206 and electrode 115 to be welded arrive under the heating block 321.

[0052] 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 battery busbar welding device, comprising a frame device, characterized in that: The frame device comprises a frame (101), an upper plate (102) is fixedly mounted on the frame (101), the frame device is used to drive the battery to be welded to move, the frame device is provided with two discharge devices and two resistance welding devices, the discharge device comprises a placement rack (201), the placement rack (201) is fixedly mounted on the upper plate (102), the discharge device is used to discharge the busbar to be welded onto the electrode of the battery, the resistance welding device comprises a slide seat (301), the slide seat (301) is fixedly mounted on the upper plate (102), and the resistance welding device is used to weld the busbar to the electrode of the battery; The frame device comprises a bottom motor (103) fixedly mounted on the frame (101), a motor wheel (104) fixedly mounted on the motor shaft of the bottom motor (103), a long shaft (106) rotatably mounted on the frame (101), an intermediate wheel (107) and an outer wheel (108) fixedly mounted on the long shaft (106), a bottom transmission belt (105) wound around the intermediate wheel (107) and the motor wheel (104), and a vertical transmission belt (109) wound around the outer wheel (108); The resistance welding device comprises a screw rod (302) rotatably mounted on a slide (301), a screw rod wheel (303) fixedly mounted on the screw rod (302), a vertical transmission belt (109) wound around the screw rod wheel (303) and an outer wheel (108), a welding frame (304) slidably mounted on the slide (301), the welding frame (304) and the screw rod (302) forming a threaded transmission, an electric cylinder (305) fixedly mounted on the welding frame (304), a lifting block (306) fixedly mounted on the top of the electric cylinder (305), an observation instrument (312) fixedly mounted on the lifting block (306), a vertical slide rail (314) fixedly mounted on the welding frame (304), and the lifting block (306) and the vertical slide rail (314) slidably mounted; The lifting block (306) is provided with a hot melt mechanism, and the hot melt mechanism includes a horizontal slide rail (319) fixedly mounted on the lifting block (306), two adjusting screw rods (313) are rotatably mounted on the lifting block (306), and a fine-tuning knob (315) is fixedly mounted on the adjusting screw rods (313), a slide (316) is slidably mounted on the horizontal slide rail (319), and two lower pressure racks (320) are slidably mounted on the slide (316), a heating block (321) is fixedly mounted at the bottom of the lower pressure rack (320), and a pull rod (317) is slidably mounted on the slide (316). ), a pull rod spring (318) is arranged between the pull rod (317) and the slide (316), an internal thread clamp (323) is fixedly installed on the pull rod (317), an internal thread is arranged on the internal thread clamp (323), the internal thread clamp (323) and the adjusting screw rod (313) form a threaded transmission, a slide rod (324) is slidably installed on the slide (316), a card (325) is fixedly installed on the slide rod (324), a slide rod spring (326) is arranged between the card (325) and the slide (316), and an eccentric clamp rod (322) is eccentrically rotatably installed on the slide rod (324).

2. A battery busbar welding device according to claim 1, characterized in that: The upper plate (102) is provided with a conveying mechanism, the conveying mechanism comprising a conveying motor (116) fixedly mounted on the upper plate (102), a motor gear (117) fixedly mounted on the motor shaft of the conveying motor (116), a driving wheel (119) and a driven wheel (120) rotatably mounted on the upper plate (102), a conveying bevel gear (118) fixedly mounted on the driving wheel (119), the motor gear (117) meshing with the conveying bevel gear (118), a conveying belt (121) wound around the driven wheel (120) and the driving wheel (119), a plurality of supporting wheels (122) rotatably mounted on the upper plate (102) for providing support for the conveying belt (121), a storage battery (114) placed on the conveying belt (121), six battery packs arranged inside the storage battery (114), two electrodes (115) fixedly mounted on the battery pack, which are a cathode and an anode.

3. A battery busbar welding device according to claim 1, characterized in that: Two sets of limiting mechanisms are arranged on the upper plate (102), and the limiting mechanisms include a centering frame (110) fixedly mounted on the upper plate (102), a centering sliding column (111) slidably mounted on the centering frame (110), a centering plate (113) fixedly mounted on the centering sliding column (111), a centering spring (112) arranged between the centering plate (113) and the centering frame (110), and a storage battery (114) located between the two centering plates (113).

4. A battery busbar welding device according to claim 2, characterized in that: The unloading device comprises a placing motor (203) fixedly mounted on a placing frame (201); an adjusting slot (202) is provided on the placing frame (201); the placing frame (201) is fixedly mounted on the upper plate (102) via bolts and the adjusting slot (202); the mounting position of the placing frame (201) can be adjusted via the adjusting slot (202) to accommodate storage batteries (114) of different widths; a rotating disk (203) is fixedly mounted on the motor shaft of the placing motor (203); 07), an eccentric column (208) is eccentrically fixedly installed on the turntable (207), an adjustment bar (204) is fixedly installed on the placement frame (201), a long slot hole is provided on the adjustment bar (204), a placement frame (205) is fixedly installed in the long slot hole of the adjustment bar (204) by means of bolts, a plurality of bus bars (206) are placed in the placement frame (205), and the position of the placement frame (205) relative to the adjustment bar (204) can be adjusted according to different sizes of the bus bars (206).

5. A battery busbar welding device according to claim 4, characterized in that: The placing frame (205) is provided with a material pushing mechanism, which comprises two pushing plates (211) slidably mounted in the placing frame (205), the pushing plates (211) are provided with avoidance grooves (214), a sliding column (212) is fixedly mounted on the pushing plates (211), a slot frame (209) is slidably mounted outside the eccentric column (208), an upper slide frame (210) is fixedly mounted on the slot frame (209), the eccentric column (208) can slide and rotate in the slot of the slot frame (209), a slide groove (215) is provided on the upper slide frame (210), and the sliding column (212) slides in the slide groove (215).

6. A battery busbar welding device according to claim 5, characterized in that: A one-way rotating block (213) is rotatably mounted on the placement frame (205), and the one-way rotating block (213) can only rotate outwards. The width of the avoidance groove (214) is greater than the width of the one-way rotating block (213).

7. A battery busbar welding device according to claim 1, characterized in that: The welding frame (304) is provided with a swaying mechanism, the swaying mechanism comprising a fixed guide frame (307) fixedly mounted on the welding frame (304), an outer guide frame (308) and an inner guide frame (309) slidably mounted on the fixed guide frame (307), an outer spring (310) is provided between the outer guide frame (308) and the fixed guide frame (307), and an inner spring (311) is provided between the inner guide frame (309) and the fixed guide frame (307).

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