Plasma cutting device for battery processing

Abstract

The invention discloses a plasma cutting device for battery processing, and belongs to the technical field of plasma cutting, the plasma cutting device comprises a cutting mechanism for plasma cutting of batteries, and the cutting mechanism is provided with a rotating mechanism for driving the cut batteries to rotate and a placing mechanism for orderly placing the batteries; through cooperative work of the putting-in mechanism and the rotating mechanism which are integrally designed, automatic sorting, batched quantitative feeding and accurate positioning of the batteries are achieved. Nine batteries in three rows and three columns can be loaded and fixed at the same time at a time, when continuous feeding and cutting are achieved through periodic rotation of the material distributing roller, three welding guns can conduct synchronous plasma cutting on the three batteries in one row at the same time, and spiral cutting operation of multiple battery shells is completed at a time in combination with constant-speed rotation of the batteries. The whole process is automatically connected from feeding, cutting-off to discharging, interruption and waiting of traditional single-piece manual operation are avoided, and the capacity and the production takt of battery cutting-off operation are improved.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of plasma cutting, in particular to a plasma cutting device for battery processing. BACKGROUND

[0002] In the battery manufacturing process, especially for cylindrical lithium ion batteries, nickel hydrogen batteries and the like, the shell and the cover often need to be cut off efficiently and accurately. The traditional shell and cover cutting methods mainly include mechanical cutting and laser cutting. The mechanical cutting usually uses a high-speed rotating blade or sawtooth for ring cutting or longitudinal cutting. Although the equipment cost of this method is relatively low, it has obvious defects in actual application. Firstly, the cutter directly contacts the shell and the cover, which easily produces debris to pollute the internal materials of the battery, and the cutter wears out quickly, which needs to be replaced frequently, affecting the production continuity and increasing the maintenance cost. Secondly, for high-hardness alloy shells and covers, the mechanical cutting resistance is large, which easily leads to battery deformation or too many burrs on the cutting edge, affecting the subsequent process. Laser cutting, as a non-contact processing method, has the advantages of high precision and narrow cutting seam, but the equipment investment and operation cost are extremely high, and the cutting efficiency of some high-reflectivity metal materials is limited, the energy consumption is also large, and it is difficult to popularize on a large scale. Therefore, the plasma cutting technology, which has the advantages of fast cutting speed, strong adaptability and moderate comprehensive cost, is considered as a potential alternative.

[0003] In addition, there is also a wide range of precise cutting needs in the specialized production of battery shell and cover parts. The battery shell and cover, including the shell and the cover, are usually made of metal sheet through stamping forming. The initial shape often has process round corners or chamfers. Before final delivery, these arc chamfers often need to be cut into precise flat surfaces required for assembly according to customer drawings, or notches are cut at specific positions for shape modification. Another common scenario is the adjustment and reuse of inventory size. For example, if an order changes or the size is adjusted, the direct scrapping of a large number of produced shell and cover parts of a certain size (such as 70mm) will cause great waste. At this time, it is necessary to modify them into smaller size (such as 65mm or 60mm) parts through precise cutting, so as to realize material saving and flexible optimization of inventory. This kind of secondary finishing of formed metal shell and cover puts forward higher requirements on cutting efficiency, cutting quality, batch processing capacity and automation level.

[0004] However, when plasma cutting technology is applied to the mass cutting of battery casings and covers, a series of technical challenges still need to be addressed. First, at the level of automated production, existing technologies lack efficient automatic battery sorting, conveying, and positioning mechanisms, relying heavily on manual feeding of individual batteries or simple vibratory feeders. This is difficult to match the high-speed characteristics of plasma cutting, thus restricting overall production efficiency. Second, at the cutting process level, to achieve complete separation of the battery casing and cover, spiral or annular cutting is often required. This necessitates that the battery rotates at a constant speed during the cutting process, while the plasma welding torch moves smoothly along the axial direction. Existing devices typically use independent rotary motors and linear modules for separate driving, but their synchronous control is complex, and slippage between the battery and the drive roller is easy, resulting in uneven rotation speed. This ultimately causes cutting path deviation, inconsistent cutting depth, and even cutting through and damaging the internal cells, seriously affecting processing quality and yield. Third, regarding the long-term operational stability of the equipment, key components such as the lead screw and guide rail that drive the reciprocating motion of the cutting mechanism will generate frictional heat and wear under high-speed, high-frequency operation. Without continuous and effective automatic lubrication and protection, this will quickly lead to a decrease in motion accuracy, increased noise, and shortened lifespan, thereby affecting the accuracy of the cutting position and the overall reliability of the equipment. Summary of the Invention

[0005] To address the aforementioned technical problems, this invention discloses a battery-specific plasma cutting device that integrates automatic feeding, synchronous rotary cutting, and stable lubrication. The technical solution adopted by this invention is as follows: a plasma cutting device for battery processing, comprising a cutting mechanism for plasma cutting of batteries, the cutting mechanism comprising a housing, and the cutting mechanism being provided with a rotating mechanism for driving the cut battery to rotate and an insertion mechanism for neatly inserting the battery. The rotating mechanism includes a placement box fixedly installed inside the outer shell, a bottom blocking frame slidably installed below the placement box, a rolling motor fixedly installed inside the bottom blocking frame, a bottom rotating roller rotatably installed inside the bottom blocking frame, the bottom rotating roller being fixedly installed with the motor shaft of the rolling motor, and a rubber sleeve covering the outside of the bottom rotating roller.

[0006] Furthermore, the cutting mechanism includes a fixed frame fixedly installed inside the outer casing, a transverse block slidably installed inside the fixed frame, three welding torches fixedly installed vertically from top to bottom on the transverse block, and a moving block fixedly installed on the transverse block.

[0007] Furthermore, the cutting mechanism also includes a main motor fixedly mounted on the outer casing. A drive wheel is fixedly mounted on the motor shaft of the main motor. A lead screw fixing frame is fixedly mounted inside the outer casing. A transverse lead screw is rotatably mounted inside the lead screw fixing frame. A side bevel gear is fixedly mounted on the transverse lead screw. A lower driven wheel is rotatably mounted on the lead screw fixing frame. A lower bevel gear is fixedly mounted on the lower driven wheel. The lower bevel gear meshes with the side bevel gear. The moving block slides inside the lead screw fixing frame. The moving block and the transverse lead screw form a threaded transmission. A transmission belt is wound around the drive wheel and the lower driven wheel.

[0008] Furthermore, the cutting mechanism also includes an oil inlet pipe fixedly installed on the lead screw fixing frame, a lubricating oil cylinder fixedly installed on the oil inlet pipe, an inner oil passage provided in the moving block, the inner oil passage communicating with the oil inlet pipe, and the lubricating oil cylinder containing lubricating oil.

[0009] Furthermore, the cutting mechanism also includes a fixed column fixedly installed on the outer shell, a bottom plate fixedly installed below the fixed column, a plasma welding machine fixedly installed inside the outer shell, and the plasma welding machine connected to three welding guns.

[0010] The main motor drives the drive wheel to rotate, and the drive wheel drives the driven wheel and the lower bevel gear to rotate through the transmission belt. The lower bevel gear drives the side bevel gear and the transverse lead screw to rotate. The rotation of the transverse lead screw drives the moving block to slide along the lead screw fixed frame. The moving block, along with the transverse block and three welding torches, slides along the fixed frame.

[0011] Lubricating oil enters the inner oil passage from the lubricating oil cylinder through the oil inlet pipe, and then enters between the moving block and the lateral lead screw, ensuring that the moving block remains stable when sliding along the lead screw fixed frame, thereby ensuring that the lateral block remains stable when sliding along the fixed frame, allowing the three welding guns to slide horizontally and smoothly.

[0012] Furthermore, the rotating mechanism also includes an opening electric cylinder fixedly installed on the placement box. An active lifting seat is fixedly installed on the output end of the opening electric cylinder. The active lifting seat slides along the placement box. A pull-out rotating rod is rotatably installed on the active lifting seat. The pull-out rotating rod is rotatably installed with the bottom blocking frame.

[0013] Furthermore, the rotating mechanism also includes two inner partition plates fixedly installed inside the placement box. The two inner partition plates divide the placement box into three identical spaces. Three transverse slots are provided on the inner side of the placement box. A drop-out hole is provided at the bottom of the placement box. The upper surface of the outer surface of the bottom rotating roller is higher than the upper surface of the bottom blocking frame. In the initial state, the bottom blocking frame and the bottom rotating roller are located above the drop-out hole.

[0014] After the placement mechanism puts the battery into the placement box, each space in the placement box contains three batteries from bottom to top. The bottom battery is located on the bottom rotating roller. At this time, the rolling motor rotates, driving the bottom rotating roller to rotate. The rubber sleeve on the bottom rotating roller increases the friction, and the bottom rotating roller drives the bottom battery to rotate through the friction. Due to the weight of the battery itself, the bottom battery drives the middle battery to rotate, and the middle battery drives the top battery to rotate, thus realizing that all the batteries rotate together.

[0015] The horizontally moving welding torches perform plasma cutting of the batteries through the transverse grooves. While the welding torches move horizontally, the batteries rotate at a constant speed. That is, as the three welding torches move horizontally, the battery casings are spirally cut, making it easier to remove the casings later. After the three welding torches have cut the casings of nine batteries, the casings are still attached to the surface, but can be easily removed later. Then, the electric cylinder is extended, driving the active lifting seat to descend. By pulling out the rotating rod, the bottom blocking frame moves outward, causing the bottom blocking frame and the bottom rotating roller to move away from the drop hole. Then, the batteries fall downward, through the drop hole into the discharge hopper, and then fall out of the discharge hopper.

[0016] Furthermore, the feeding mechanism includes a feeding hopper fixedly installed on the outer shell, a discharging hopper fixedly installed below the outer shell, the discharging hopper being located below the placement box, the feeding hopper being located above the placement box, a distributing motor fixedly installed on the feeding hopper, a distributing roller rotatably installed inside the feeding hopper, the distributing roller being fixedly installed with the motor shaft of the distributing motor, four distributing grooves evenly arranged on the circumference of the distributing roller, the groove width being the same as the groove width of the battery, and two upper partition plates fixedly installed inside the feeding hopper, the upper partition plates dividing the inside of the feeding hopper into three identical spaces.

[0017] In use, the batteries are placed into the feeding hopper. The batteries are divided into three rows by the upper partition plate. The batteries are then stacked in the feeding hopper. The distributing motor drives the distributing roller to rotate. When the distributing trough reaches the bottom of the batteries in the feeding hopper, only the bottom three batteries will enter the distributing trough. Then the distributing roller drives the three batteries to rotate. When the three batteries reach the top of the placement box, the three batteries fall into the placement box. Then the three batteries enter the three spaces in the placement box respectively, and are separated by the inner partition plate in pairs. Finally, the three rows and three columns of batteries are stacked in the placement box.

[0018] The beneficial effects of the present invention compared with the prior art are: (1) The present invention achieves automatic sorting, batch quantitative feeding and precise positioning of batteries by working together with the integrated design of the insertion mechanism and the rotation mechanism. Nine batteries in three rows and three columns can be loaded and fixed at the same time. The feeding is continuously achieved by the periodic rotation of the feeding roller. When cutting, the three welding guns can simultaneously perform plasma cutting on three batteries in a row. Combined with the uniform rotation of the battery itself, the spiral cutting operation of multiple battery shells is completed at one time. The entire process is automatically connected from feeding, cutting to unloading, avoiding the interruption and waiting of traditional single-piece manual operation, and improving the production capacity and production rhythm of battery cutting operation; (2) This invention achieves precise synchronization of battery rotation and welding gun translation. In the rotating mechanism, the bottom rotating roller driven by the rolling motor directly drives the bottom layer of batteries to rotate through the high friction rubber sleeve, and uses the gravity and friction of the stacked batteries to transmit torque layer by layer, so that all batteries in the same vertical column rotate synchronously at the same speed, ensuring the rotational stability of each battery. At the same time, the cutting mechanism is driven by a single main motor, and the power is transmitted to the transverse lead screw through the transmission belt and bevel gear pair, thereby driving the moving block and three welding guns. The gun moves smoothly and at a constant speed along the fixed frame, so that the horizontal moving speed of the welding gun and the circumferential rotation speed of the battery are kept in a constant ratio, thereby forming a spiral cutting seam with uniform pitch and consistent depth on the surface of the battery. The cut is clean and neat, laying a high-quality foundation for the subsequent complete peeling of the battery shell; (3) The present invention realizes the rapid and smooth discharge of the battery after cutting through the rotating mechanism and the feeding channel. When a batch of batteries is cut, the electric cylinder is started and the active lifting seat is driven to descend. Then, through the action of the connecting rod of the pull-out rotating rod, the bottom blocking frame and the bottom rotating roller are moved horizontally away from the drop-out hole position at the bottom of the placement box. At this time, all the batteries that have lost their support fall neatly into the discharge hopper below through the drop-out hole under the action of gravity, and finally slide out of the device. No additional power grabbing or pushing mechanism is required, which simplifies the equipment structure. The feeding link and the continuous feeding and cutting links are coordinated to form a complete, efficient and automated battery cutting production closed loop. Attached Figure Description

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

[0020] Figure 2 This is a schematic diagram of the cutting mechanism of the present invention. Figure One .

[0021] Figure 3 This is a schematic diagram of the cutting mechanism of the present invention. Figure Two .

[0022] Figure 4 This is a schematic diagram of the cutting mechanism of the present invention. Figure Three .

[0023] Figure 5 This is a schematic diagram of the cutting mechanism of the present invention. Figure Four .

[0024] Figure 6 This is a schematic diagram of the rotating mechanism structure of the present invention. Figure One .

[0025] Figure 7 This is a schematic diagram of the rotating mechanism structure of the present invention. Figure Two .

[0026] Figure 8 This is a schematic diagram of the rotating mechanism structure of the present invention. Figure Three .

[0027] Figure 9 This is a schematic diagram of the rotating mechanism structure of the present invention. Figure Four .

[0028] Figure 10 This is a schematic diagram of the mechanism structure of the present invention. Figure One .

[0029] Figure 11 This is a schematic diagram of the mechanism structure of the present invention. Figure Two .

[0030] Reference numerals: 101-Outer casing; 102-Fixed column; 103-Lower base plate; 104-Main motor; 105-Lubricating oil cylinder; 106-Plasma welding machine; 107-Lead screw fixing frame; 108-Fixed frame; 109-Driving wheel; 110-Transmission belt; 111-Moving block; 112-Transverse lead screw; 113-Oil inlet pipe; 114-Welding torch; 115-Lower driven wheel; 116-Lower bevel gear; 117-Side bevel gear; 118- 119 - Horizontal moving block; 201 - Inner oil passage; 202 - Placement box; 203 - Horizontal through groove; 204 - Inner partition plate; 205 - Opening electric cylinder; 206 - Active lifting seat; 207 - Pull-out rotating rod; 208 - Bottom blocking frame; 209 - Rolling motor; 210 - Bottom rotating roller; 301 - Drop-out hole; 302 - Feeding motor; 303 - Discharge hopper; 304 - Feeding roller; 305 - Feeding groove; 306 - Upper partition plate; 4 - Battery. Detailed Implementation

[0031] The specific embodiments of the present invention will be further described below with reference to the accompanying drawings.

[0032] Example: Reference Figures 1-11 A plasma cutting device for battery processing includes a cutting mechanism for plasma cutting a battery 4. The cutting mechanism includes a housing 101, a rotating mechanism for driving the cut battery 4 to rotate, and an insertion mechanism for neatly inserting the battery 4. The rotating mechanism includes a placement box 201 fixedly installed inside the outer casing 101, a bottom blocking frame 207 slidably installed below the placement box 201, a rolling motor 208 fixedly installed inside the bottom blocking frame 207, a bottom rotating roller 209 rotatably installed inside the bottom blocking frame 207, the bottom rotating roller 209 is fixedly installed with the motor shaft of the rolling motor 208, and a rubber sleeve is fitted on the outside of the bottom rotating roller 209.

[0033] like Figures 2-5 As shown, the cutting mechanism includes a fixed frame 108 fixedly installed inside the outer casing 101, a transverse block 118 slidably installed inside the fixed frame 108, three welding guns 114 fixedly installed vertically from top to bottom on the transverse block 118, and a moving block 111 fixedly installed on the transverse block 118.

[0034] like Figures 2-5 As shown, the cutting mechanism also includes a main motor 104 fixedly mounted on the outer casing 101. A drive wheel 109 is fixedly mounted on the motor shaft of the main motor 104. A lead screw fixing frame 107 is fixedly mounted inside the outer casing 101. A transverse lead screw 112 is rotatably mounted inside the lead screw fixing frame 107. A side bevel gear 117 is fixedly mounted on the transverse lead screw 112. A lower driven wheel 115 is rotatably mounted on the lead screw fixing frame 107. A lower bevel gear 116 is fixedly mounted on the lower driven wheel 115. The lower bevel gear 116 meshes with the side bevel gear 117. A moving block 111 slides inside the lead screw fixing frame 107. The moving block 111 and the transverse lead screw 112 form a threaded transmission. A transmission belt 110 is wound around the drive wheel 109 and the lower driven wheel 115.

[0035] like Figures 2-5 As shown, the cutting mechanism also includes an oil inlet pipe 113 fixedly installed on the lead screw fixing frame 107. A lubricating oil cylinder 105 is fixedly installed on the oil inlet pipe 113. An inner oil passage 119 is provided in the moving block 111. The inner oil passage 119 is connected to the oil inlet pipe 113. The lubricating oil cylinder 105 is filled with lubricating oil.

[0036] like Figures 2-5 As shown, the cutting mechanism also includes a fixed column 102 fixedly installed on the outer shell 101, a lower base plate 103 fixedly installed below the fixed column 102, and a plasma welding machine 106 fixedly installed inside the outer shell 101. The plasma welding machine 106 is connected to three welding guns 114.

[0037] The main motor 104 drives the drive wheel 109 to rotate. The drive wheel 109 drives the driven wheel 115 and the lower bevel gear 116 to rotate via the transmission belt 110. The lower bevel gear 116 drives the side bevel gear 117 and the transverse lead screw 112 to rotate. The rotation of the transverse lead screw 112 drives the moving block 111 to slide along the lead screw fixing frame 107. The moving block 111, along with the transverse block 118 and the three welding torches 114, slides along the fixing frame 108.

[0038] Lubricating oil enters the inner oil passage 119 from the lubricating oil cylinder 105 through the oil inlet pipe 113. Then, the lubricating oil enters between the moving block 111 and the transverse lead screw 112, ensuring that the moving block 111 remains stable when sliding along the lead screw fixing frame 107, thereby ensuring that the transverse block 118 remains stable when sliding along the fixing frame 108, so that the three welding torches 114 can slide horizontally and smoothly.

[0039] like Figures 6-9 As shown, the rotating mechanism also includes an opening electric cylinder 204 fixedly installed on the placement box 201. An active lifting seat 205 is fixedly installed on the output end of the opening electric cylinder 204. The active lifting seat 205 slides along the placement box 201. A pull-out rotating rod 206 is rotatably installed on the active lifting seat 205. The pull-out rotating rod 206 is rotatably installed with the bottom blocking frame 207.

[0040] like Figures 6-9 As shown, the rotating mechanism also includes two inner partition plates 203 fixedly installed inside the placement box 201. The two inner partition plates 203 divide the placement box 201 into three identical spaces. Three transverse slots 202 are provided on the inner side of the placement box 201. A drop hole 210 is provided at the bottom of the placement box 201. The upper surface of the outer surface of the bottom rotating roller 209 is higher than the upper surface of the bottom blocking frame 207. In the initial state, the bottom blocking frame 207 and the bottom rotating roller 209 are located above the drop hole 210.

[0041] After the placement mechanism puts the battery 4 into the placement box 201, each space in the placement box 201 contains three batteries 4 from bottom to top. The bottom battery 4 is located on the bottom roller 209. At this time, the rolling motor 208 rotates, driving the bottom roller 209 to rotate. The rubber sleeve on the bottom roller 209 increases the friction. The bottom roller 209 drives the bottom battery 4 to rotate through the friction. Since the battery 4 has its own gravity, the bottom battery 4 drives the middle battery 4 to rotate, and the middle battery 4 drives the top battery 4 to rotate, thus realizing that all the batteries 4 rotate together.

[0042] The horizontally moving welding torch 114 performs plasma cutting on the battery 4 through the transverse groove 202. While the welding torch 114 moves horizontally, the battery 4 rotates at a constant speed. That is, when the three welding torches 114 move horizontally, the outer skin of the battery 4 is spirally cut, making it easier to remove the outer skin of the battery 4 later. After the three welding torches 114 have cut the outer skin of the nine batteries 4, the outer skin of the battery 4 is still attached to the surface, but it can be easily removed later. Then, the electric cylinder 204 is extended, which drives the active lifting seat 205 to descend. By pulling out the rotating rod 206, the bottom blocking frame 207 moves outward, so that the bottom blocking frame 207 and the bottom rotating roller 209 are away from the drop hole 210. Then the battery 4 falls downward and falls into the discharge hopper 303 through the drop hole 210, and then falls out of the discharge hopper 303.

[0043] like Figure 10 , Figure 11 As shown, the feeding mechanism includes a feeding hopper 301 fixedly installed on the outer casing 101, a discharging hopper 303 fixedly installed below the outer casing 101, the discharging hopper 303 being located below the placement box 201, and the feeding hopper 301 being located above the placement box 201. A distributing motor 302 is fixedly installed on the feeding hopper 301, and a distributing roller 304 is rotatably installed inside the feeding hopper 301. The distributing roller 304 is fixedly installed on the motor shaft of the distributing motor 302. Four distributing grooves 305 are evenly arranged on the circumference of the distributing roller 304. The groove width of the distributing grooves 305 is the same as the groove width of the battery 4. Two upper partition plates 306 are fixedly installed inside the feeding hopper 301, dividing the inside of the feeding hopper 301 into three identical spaces.

[0044] In use, the battery 4 is placed into the feeding hopper 301. The battery 4 is divided into three rows by the upper partition plate 306. The distributing motor 302 drives the distributing roller 304 to rotate. When the distributing trough 305 reaches the bottom of the battery 4 in the feeding hopper 301, only the bottom three batteries 4 will enter the distributing trough 305. Then the distributing roller 304 drives the three batteries 4 to rotate. When the three batteries 4 reach the top of the placement box 201, the three batteries 4 fall into the placement box 201. Then the three batteries 4 enter the three spaces in the placement box 201 respectively, and are separated by the inner partition plate 203. Then the three rows and three columns of batteries 4 are stacked in the placement box 201.

[0045] The working principle of the plasma cutting device for battery processing disclosed in this invention is as follows: When in use, the battery 4 is placed into the feeding hopper 301. The battery 4 is divided into three rows by the upper partition plate 306. The distributing motor 302 drives the distributing roller 304 to rotate. When the distributing groove 305 reaches the bottom of the battery 4 in the feeding hopper 301, only the bottom three batteries 4 will enter the distributing groove 305. Then the distributing roller 304 drives the three batteries 4 to rotate. When the three batteries 4 reach the top of the placement box 201, the three batteries 4 fall into the placement box 201. Then the three batteries 4 enter the three spaces in the placement box 201 respectively, and are separated by the inner partition plate 203 in pairs. Then the three rows and three columns of batteries 4 are stacked in the placement box 201.

[0046] After the placement mechanism puts the battery 4 into the placement box 201, each space in the placement box 201 contains three batteries 4 from bottom to top. The bottom battery 4 is located on the bottom roller 209. At this time, the rolling motor 208 rotates, driving the bottom roller 209 to rotate. The rubber sleeve on the bottom roller 209 increases the friction. The bottom roller 209 drives the bottom battery 4 to rotate through the friction. Since the battery 4 has its own gravity, the bottom battery 4 drives the middle battery 4 to rotate, and the middle battery 4 drives the top battery 4 to rotate, thus realizing that all the batteries 4 rotate together.

[0047] The main motor 104 drives the drive wheel 109 to rotate. The drive wheel 109 drives the driven wheel 115 and the lower bevel gear 116 to rotate via the transmission belt 110. The lower bevel gear 116 drives the side bevel gear 117 and the transverse lead screw 112 to rotate. The rotation of the transverse lead screw 112 causes the moving block 111 to slide along the lead screw fixing frame 107. The moving block 111, along with the transverse moving block 118 and the three welding torches 114, slides along the fixing frame 108. Lubricating oil enters the inner oil passage 119 from the lubricating oil cylinder 105 through the oil inlet pipe 113. Then, the lubricating oil enters between the moving block 111 and the transverse lead screw 112, ensuring that the moving block 111 remains stable when sliding along the lead screw fixing frame 107, thereby ensuring that the transverse moving block 118 remains stable when sliding along the fixing frame 108, and allowing the three welding torches 114 to slide horizontally and smoothly.

[0048] The horizontally moving welding torch 114 performs plasma cutting on the battery 4 through the transverse groove 202. While the welding torch 114 moves horizontally, the battery 4 rotates at a constant speed. That is, when the three welding torches 114 move horizontally, the outer skin of the battery 4 is spirally cut, making it easier to remove the outer skin of the battery 4 later. After the three welding torches 114 have cut the outer skin of the nine batteries 4, the outer skin of the battery 4 is still attached to the surface, but it can be easily removed later. Then, the electric cylinder 204 is extended, which drives the active lifting seat 205 to descend. By pulling out the rotating rod 206, the bottom blocking frame 207 moves outward, so that the bottom blocking frame 207 and the bottom rotating roller 209 are away from the drop hole 210. Then the battery 4 falls downward and falls into the discharge hopper 303 through the drop hole 210, and then falls out of the discharge hopper 303.

[0049] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the present invention based on the technical solution and inventive concept of the present invention should be covered within the scope of protection of the present invention.

Claims

1. A plasma cutting apparatus for battery processing, comprising a cutting mechanism for plasma cutting of a battery (4), characterized by: The cutting mechanism includes a housing (101), and a rotating mechanism for rotating the cut battery (4) and a placing mechanism for placing the battery (4) neatly are arranged on the cutting mechanism; The rotating mechanism includes a placing box (201) fixedly installed in the housing (101), a bottom blocking frame (207) slidably installed below the placing box (201), a rolling motor (208) fixedly installed in the bottom blocking frame (207), and a bottom rotating roller (209) rotatably installed in the bottom blocking frame (207), wherein the bottom rotating roller (209) is fixedly installed with a motor shaft of the rolling motor (208).

2. The apparatus according to claim 1, wherein: The cutting mechanism includes a fixed frame (108) fixedly installed in the housing (101), a horizontal moving block (118) slidably installed in the fixed frame (108), at least one welding gun (114) fixedly installed on the horizontal moving block (118), and a moving block (111) fixedly installed on the horizontal moving block (118).

3. The apparatus of claim 2 wherein: The cutting mechanism further includes a main motor (104) fixedly installed on the housing (101), a driving wheel (109) fixedly installed on a motor shaft of the main motor (104), a screw rod fixed frame (107) fixedly installed in the housing (101), a horizontal screw rod (112) rotatably installed in the screw rod fixed frame (107), a side bevel gear (117) fixedly installed on the horizontal screw rod (112), a lower driven wheel (115) rotatably installed on the screw rod fixed frame (107), a lower bevel gear (116) fixedly installed on the lower driven wheel (115), and the lower bevel gear (116) is engaged with the side bevel gear (117), wherein the moving block (111) slides in the screw rod fixed frame (107), the moving block (111) is in threaded transmission with the horizontal screw rod (112), and the driving wheel (109) and the lower driven wheel (115) are externally wound with a transmission belt (110).

4. The apparatus according to claim 3, wherein: The cutting mechanism further includes an oil inlet pipe (113) fixedly installed on the screw rod fixed frame (107), a lubricating oil cylinder (105) fixedly installed on the oil inlet pipe (113), an inner oil channel (119) arranged in the moving block (111), and the inner oil channel (119) is in communication with the oil inlet pipe (113), and the lubricating oil cylinder (105) contains lubricating oil.

5. The apparatus of claim 4 wherein: The cutting mechanism further includes a fixed stand (102) fixedly installed on the housing (101), a lower bottom plate (103) fixedly installed below the fixed stand (102), a plasma welding machine (106) fixedly installed in the housing (101), and the plasma welding machine (106) is in communication with the welding gun (114).

6. The apparatus of claim 1 wherein: The rotating mechanism further comprises an opening electric cylinder (204) fixedly installed on the placing box (201), an output end of the opening electric cylinder (204) is fixedly installed with a driving lifting seat (205), the driving lifting seat (205) slides along the placing box (201), the driving lifting seat (205) is rotationally installed with a pulling-out rotating rod (206), and the pulling-out rotating rod (206) is rotationally installed with the bottom blocking frame (207).

7. The apparatus of claim 6 wherein: The rotating mechanism further comprises at least one inner partition plate (203) fixedly installed in the placing box (201), the inner partition plate (203) divides the placing box (201) into at least two same spaces, at least one horizontal through slot (202) is arranged on the inner side of the placing box (201), a drop hole (210) is arranged below the placing box (201), an outer surface of the bottom rotating roller (209) is higher than an upper surface of the bottom blocking frame (207), and in the initial state, the bottom blocking frame (207) and the bottom rotating roller (209) are located above the drop hole (210).

8. The apparatus of claim 1 wherein: The putting mechanism comprises a feeding hopper (301) fixedly installed on an outer shell (101), a discharging hopper (303) is fixedly installed below the outer shell (101), the discharging hopper (303) is located below the placing box (201), the feeding hopper (301) is located above the placing box (201), a distributing motor (302) is fixedly installed on the feeding hopper (301), a distributing roller (304) is rotationally installed in the feeding hopper (301), the distributing roller (304) is fixedly installed with a motor shaft of the distributing motor (302), four distributing grooves (305) are uniformly arranged on the distributing roller (304), a groove width of the distributing groove (305) is same as a groove width of the battery (4), at least one upper partition plate (306) is fixedly installed in the feeding hopper (301), and the upper partition plate (306) divides the feeding hopper (301) into at least two same spaces.

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