Automatic feeding and marking equipment for power battery cover plate

Abstract

The invention discloses automatic feeding and marking equipment for a power battery cover plate. The automatic feeding and marking equipment comprises a battery cover plate supply device and a battery cover plate marking device, the battery cover plate supply device comprises a cover plate conveying line, and a position degree identification mechanism is arranged on a conveying path of the cover plate conveying line; the battery cover plate marking device comprises a marking rotating tray, a cover plate feeding station, a cover plate marking station, a cover plate discharging station and a neutral gear station, a marking mechanism is arranged on the cover plate marking station; the cover plate unloading station comprises an NG unloading cabin and a turnover surface mechanism, a combined turnover mechanism is arranged on the neutral gear station, and the combined turnover mechanism comprises a linkage turnover seat carrying a first turnover part and a second turnover part. The battery cover plate automatic feeding device can meet the requirement for automatic feeding of marked battery cover plates, and online position degree recognition and overturning feeding are achieved. And the linkage transfer design is adopted, so that the cost is effectively controlled, and the equipment space layout is more compact. High-speed continuous production is achieved, and operation is smooth, stable and efficient.

Description

Technical Field

[0001] The invention relates to automatic feeding and marking equipment for a power battery cover plate, belonging to the technical field of battery production equipment. Background Art

[0002] The power battery system (power battery PACK, battery pack) is the core energy source for providing driving power for new energy vehicles and is one of the most critical components of new energy vehicles. The power battery system is mainly composed of battery modules, electrical systems, thermal management systems, shells, BMS and other components. The battery modules, electrical systems, thermal management systems and BMS are packaged in the shell to form the main body of the power battery system.

[0003] Power batteries generally include cylindrical batteries and blade batteries. Regardless of whether they are cylindrical batteries or blade batteries, they all have a battery cover with electrodes. The battery cover assembly includes the assembly of the battery cover, explosion-proof valve, plastic substrate, positive and negative electrode components, and requires welding inspection, internal resistance inspection, helium inspection, film pasting and other operations.

[0004] In the process of designing the production line of power battery cover, the front section, middle section and back section are generally divided according to the production line and the workstation. The front section will adopt a combination of battery cover loading, explosion-proof valve loading, welding and testing. Therefore, the front section at least includes the battery cover loading position, explosion-proof valve loading position, spot welding position, full welding position, shaping position, testing position, etc. Since the battery cover is a plate-like structure, it occupies a large space and it is difficult to use a horizontal rotating pallet for station distribution and switching. In the prior art, a linear assembly line is generally used for station arrangement.

[0005] With the demand for automated and intelligent production, it is necessary to build an MES traceability system to integrate with production. Therefore, it is necessary to track the traceability code on the original production line, and to build marking, identification, and tracking operations. It is difficult to add marking stations in traditional linear production lines. The main difficulty is that the intervals between assembly line stations are relatively compact and cannot meet the spatial layout requirements of marking equipment. In addition, the marking operation direction is opposite to the connection direction of the explosion-proof valve, and it is difficult to achieve online flip surface coordination.

[0006] In the prior art, there are also marking devices that use rotating pallets to code the surface of workpieces. However, due to the limitations of the production line layout of power batteries in the later stage, the spatial volume of traditional marking equipment is difficult to meet adaptability. In particular, there are a large number of turnover robotic arms, which not only causes space waste, but also its turnover feeding is difficult to meet the compatibility of the production line. Summary of the invention

[0007] The purpose of the present invention is to solve the deficiencies of the above-mentioned prior art. Aiming at the problems that traditional production lines are difficult to transform and existing marking equipment is difficult to be compatible with production lines, an automated loading and marking device for power battery cover plates is proposed.

[0008] In order to achieve the above object, the technical solution adopted by the present invention is: Automatic feeding and marking equipment for power battery cover, including battery cover supply device and battery cover marking device; The battery cover plate supply device comprises a cover plate conveying line for supplying battery cover plates to the battery cover plate marking device, and a position identification mechanism for identifying the direction and positive and negative directions of the battery cover plates is provided on the conveying path of the cover plate conveying line; The battery cover plate marking device comprises a marking rotating tray with a plurality of cover plate carriers, a cover plate loading station, a cover plate marking station, a cover plate unloading station, and an idle station arranged in sequence along the rotation direction of the marking rotating tray; The cover plate marking station is provided with a marking mechanism; The cover plate unloading station includes an NG unloading cabin and a flip surface mechanism for flipping the battery cover plate, and the flip surface mechanism includes a negative pressure adsorption loading platform with a receiving position located at the top of the NG unloading cabin and a flip unloading position that avoids flipping and unloading of the NG unloading cabin; A combined turnover mechanism is provided on the idle station, and the combined turnover mechanism includes a linkage turnover seat with linear displacement and lifting displacement; the linkage turnover seat is provided with a first turnover part for switching displacement between the cover plate conveying line and the cover plate loading station, and a second turnover part for switching displacement between the cover plate unloading station and the NG unloading chamber.

[0009] Preferably, the cover plate carrier comprises a carrier base block having a loading groove, and a plurality of guide pulleys are provided on the outer peripheral wall of the loading groove.

[0010] Preferably, a marking dust removal mechanism is provided on the cover plate marking station; The marking dust removal mechanism comprises a dust removal crimping cabin with lifting displacement arranged on the top of the cover plate carrier, the dust removal crimping cabin is connected to a dust removal air source and is provided with a marking through passage.

[0011] Preferably, the flipping surface mechanism includes a U-shaped carrier, a rotating shaft arranged on the U-shaped carrier, and a rotating driving source drivingly connected to the rotating shaft, and the negative pressure adsorption loading platform is arranged on the rotating shaft.

[0012] Preferably, the combined turnover mechanism includes a linkage carrier body, the linkage turnover seat includes a linear displacement slider with linear displacement arranged on the linkage carrier body, a lifting displacement carrier with lifting displacement arranged on the linear displacement slider, and a linkage bracket arranged on the lifting displacement carrier, and the first turnover part and the second turnover part are respectively arranged on the linkage bracket.

[0013] Preferably, a feed end of the cover plate conveyor line is connected to a pallet feeding device, and the pallet feeding device comprises a pallet feeding mechanism and a cover plate feeding turnover mechanism for circulating between the pallet feeding mechanism and the cover plate conveyor line.

[0014] Preferably, the battery cover is provided with a liquid injection hole; The position recognition mechanism includes a position recognition imaging unit for detecting the position of the liquid injection hole and determining the orientation and front and back of the battery cover, and a supplementary light source for supplementary light.

[0015] Preferably, the cover plate conveyor line comprises a full-length conveyor line with side guards, and a terminal positioning part for positioning the supply position of the battery cover plate is provided at the conveying terminal of the full-length conveyor line.

[0016] Preferably, the tray feeding mechanism comprises two tray feeding lines arranged in parallel and spaced apart along the direction of the cover plate conveying line, and any of the tray feeding lines is provided with a loading tray; The pallet feeding device is provided with a joint displacement carrier spanning the tops of the two pallet supply lines, and the joint displacement carrier is provided with the cover plate loading turnover mechanism and a loading pallet turnover mechanism for switching displacement between the two pallet supply lines to carry out loading pallet turnover.

[0017] Preferably, any of the tray supply lines is provided with a stacking area for stacking the loading trays, and the stacking area is provided with a tray support with lifting displacement.

[0018] The beneficial effects of the present invention are mainly reflected in: 1. It can meet the demand for automatic supply of marked battery covers and realize online position recognition and flip feeding.

[0019] 2. The linkage transfer design is adopted to effectively control costs and make the equipment space layout more compact.

[0020] 3. Realize high-speed continuous production, with smooth, stable and efficient operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Other features, objects and advantages of the present application will become more apparent by reading the detailed description of non-limiting embodiments made with reference to the following drawings: Figure 1It is a structural schematic diagram of the automatic feeding and marking equipment for the power battery cover plate of the present invention.

[0022] Figure 2 It is a schematic diagram of the top structure of the automatic feeding and marking equipment for the power battery cover plate of the present invention.

[0023] Figure 3 It is a structural schematic diagram of the cover plate conveying line in the present invention.

[0024] Figure 4 It is a structural schematic diagram of the position recognition mechanism in the present invention.

[0025] Figure 5 It is a structural schematic diagram of the marking mechanism in the present invention.

[0026] Figure 6 It is a structural schematic diagram of the flip surface mechanism in the present invention.

[0027] Figure 7 It is a structural schematic diagram of the combined turnover mechanism in the present invention.

[0028] Figure 8 It is a structural schematic diagram of the combined displacement carrier in the present invention.

[0029] Fig. 9 It is a structural schematic diagram of the tray bracket in the present invention. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] The present application will be further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the relevant inventions, rather than to limit the inventions. It should also be noted that, for ease of description, only the parts related to the relevant inventions are shown in the accompanying drawings. It should be noted that, in the absence of conflict, the embodiments in the present application and the features in the embodiments can be combined with each other.

[0032] The present invention provides an automatic loading and marking device for a power battery cover plate, such as Figures 1 to 9 As shown, it includes a battery cover supply device 1 and a battery cover marking device 2.

[0033] The battery cover supply device 1 comprises a cover conveying line 3 for supplying battery cover 100 to the battery cover marking device. A position identification mechanism 4 for identifying the orientation and positive and negative directions of the battery cover is provided on the conveying path of the cover conveying line 3.

[0034] The battery cover marking device 2 comprises a marking rotating tray 5 having a plurality of cover carriers 50 , a cover loading station 21 , a cover marking station 22 , a cover unloading station 23 , and an idle station 24 arranged in sequence along the rotating direction of the marking rotating tray 5 .

[0035] The cover plate marking station 22 is provided with a marking mechanism 220; The cover plate unloading station 23 includes an NG unloading cabin 230 and a flipping surface mechanism 7 for flipping the battery cover plate. The flipping surface mechanism 7 includes a negative pressure adsorption loading platform 70 having a receiving position located at the top of the NG unloading cabin and a flipping unloading position to avoid flipping and unloading of the NG unloading cabin.

[0036] A combined turnover mechanism 6 is provided on the idle station 24, and the combined turnover mechanism 6 includes a linkage turnover seat 60 with linear displacement and lifting displacement; the linkage turnover seat 60 is provided with a first turnover part 61 for switching displacement between the cover plate conveying line and the cover plate loading station, and a second turnover part 62 for switching displacement between the cover plate unloading station and the NG unloading chamber.

[0037] Specific implementation process and principle description: The battery cover supply device 1 supplies the battery cover 100 to the battery cover marking device 2 through its cover conveyor line 3, and the orientation and forward and reverse directions of the battery cover are detected through the position recognition mechanism 4. When the orientation is wrong or the forward and reverse directions are wrong, no marking operation is performed when the rear end passes through the cover marking station 22, and unloading is carried out in the NG unloading cabin.

[0038] When the marking rotating tray 5 is running, the battery cover plate 100 with qualified position accuracy is switched from the cover plate loading station 21 to the cover plate marking station 22 for marking and then to the cover plate unloading station 23.

[0039] The turnover of the combined turnover mechanism 6 is explained. Since the battery cover 100 is relatively large in size, the requirements for the marking rotating tray 5 are relatively high, so it is obviously difficult to design more turnover positions on the platform.

[0040] The linkage revolving seat 60 can equidistantly link the first revolving part 61 and the second revolving part 62. The first revolving part 61 picks up the battery cover 100 on the cover conveyor line 3 and transfers it to the cover carrier 50 on the cover loading station 21, while the second revolving part 62 picks up the battery cover 100 on the cover unloading station 23 and transfers it to the top of the NG unloading cabin for unloading.

[0041] It should be noted that the negative pressure adsorption loading platform of the flip surface mechanism 7 has a receiving position and a flip unloading position, that is, the landing point of the second turnover part 62 is fixed, and the qualified products are dropped on the receiving position, and the finished products are unloaded at the flip unloading position through the flipping of the negative pressure adsorption loading platform. When encountering NG products, the negative pressure adsorption loading platform of the flip surface mechanism 7 is in the flip unloading position, and the dropped products of the second turnover part 62 fall directly into the NG unloading cabin.

[0042] Therefore, the equidistant linkage between the first turnover section 61 and the second turnover section 62 meets the double-position turnover switching requirement of a linear switching span, and its turnover is relatively smooth, and the rear-end material dropping meets the requirements of NG product collection and good product flipping and unloading.

[0043] In a specific embodiment, the cover plate carrier 50 includes a carrier base block having a loading slot 501 , and a plurality of guide pulleys 502 are disposed on the outer peripheral wall of the loading slot.

[0044] That is, when the battery cover 100 is loaded, the guide pulley 502 satisfies the requirement of guiding the battery cover 100 to slide down and be loaded into the loading slot 501, thereby meeting the requirements of smooth loading and reliable positioning.

[0045] In a specific embodiment, a marking dust removal mechanism 221 is provided on the cover plate marking station 22; in addition, the marking mechanism 220 has a post-marking code scanning unit 222.

[0046] The marking dust removal mechanism 221 comprises a dust removal crimping cabin with lifting displacement arranged on the top of the cover plate carrier, the dust removal crimping cabin is connected to a dust removal air source and a marking through passage is opened thereon.

[0047] Specifically, the marking surface of the battery cover can be dusted by the marking dust removal mechanism 221, and the reliability of marking is guaranteed after dust removal. At the same time, after marking, the marking code scanning unit 222 is used to perform mark scanning and detection at the same workstation, which saves workstations and utilizes the material turnover operation time without affecting the production line speed.

[0048] In a specific embodiment, the flipping surface mechanism 7 includes a U-shaped carrier 71, a rotating shaft 72 arranged on the U-shaped carrier, and a rotating driving source 73 connected to the rotating shaft in a transmission manner, and the negative pressure adsorption loading platform 70 is arranged on the rotating shaft.

[0049] Specifically, when in the material receiving position, the negative pressure adsorption loading platform 70 is located at the top of the NG unloading chamber, and it receives the forward material. After the rotary drive source 73 drives the rotating shaft to rotate, the flipping unloading position is realized. At this time, the negative pressure adsorption loading platform 70 faces the bottom and performs unloading with the air supply cut off, thereby meeting the requirements of flipping unloading.

[0050] In a specific embodiment, the combined turnover mechanism 6 includes a linkage carrier body 63, and the linkage turnover seat 60 includes a linear displacement slider 601 with linear displacement arranged on the linkage carrier body 63, a lifting displacement carrier 602 with lifting displacement arranged on the linear displacement slider, and a linkage bracket 603 arranged on the lifting displacement carrier, and the first turnover part and the second turnover part are respectively arranged on the linkage bracket.

[0051] Such a design satisfies the linkage and coordination requirements of the first circulating part and the second circulating part.

[0052] In a specific embodiment, the feed end of the cover plate conveyor line 3 is connected to a pallet feeding device 8, and the pallet feeding device 8 includes a pallet feeding mechanism 81 and a cover plate feeding turnover mechanism 82 for circulating between the pallet feeding mechanism and the cover plate conveyor line.

[0053] Specifically, the tray feeding mechanism 81 is used to supply the battery cover plates on the tray 200 , and the cover plate loading and unloading operation is performed by the cover plate loading and unloading mechanism 82 .

[0054] In a specific embodiment, a liquid injection hole 110 is provided on the battery cover 100 .

[0055] The position recognition mechanism 4 includes a position recognition imaging unit 41 for detecting the position of the liquid filling hole and determining the orientation and front and back of the battery cover, and a supplementary light source 42 for supplementary light.

[0056] That is, based on the eccentricity and deflection position of the liquid injection hole 110 on the battery cover 100, a rapid judgment of feature recognition is performed, and the production line runs efficiently and smoothly.

[0057] In a specific embodiment, the cover plate conveyor line 3 includes a whole conveyor line 32 with a side stop 31, and a terminal positioning part 33 for positioning the supply position of the battery cover plate is provided at the conveying end of the whole conveyor line.

[0058] It meets the demand for accurate positioning of material feeding and the rear-end material transfer is accurately positioned.

[0059] In a specific embodiment, the tray feeding mechanism 81 includes two tray supply lines 811 arranged in parallel and spaced apart along the direction of the cover plate conveying line, and a loading tray 812 is provided on any tray supply line.

[0060] The pallet feeding device 8 is provided with a joint displacement carrier 9 spanning the tops of the two pallet supply lines, and the joint displacement carrier is provided with a cover plate loading turnover mechanism 82 and a loading pallet turnover mechanism 90 for switching displacement between the two pallet supply lines to perform loading pallet turnover.

[0061] In this way, the coordination needs of pallet switching turnover and material turnover are met, and production is continuous and reliable.

[0062] In a specific embodiment, any tray supply line is provided with a stacking area for stacking loading trays, and the stacking area is provided with a tray support 813 with lifting displacement.

[0063] In this way, the supply demand of lifting pallets is met, and the continuous production time of one supply cycle is significantly increased.

[0064] From the above description, we can find that it can meet the demand for automatic supply of battery cover plates for marking, and realize online position recognition and flip feeding. The linkage transfer design is adopted to effectively control the cost and make the equipment space layout more compact. It realizes high-speed continuous production, and the operation is smooth, stable and efficient.

[0065] The term "comprise" or any other similar term is intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus / device that includes a list of elements includes not only those elements but also other elements not expressly listed, or also includes elements inherent to such process, method, article, or apparatus / device.

[0066] So far, the technical solutions of the present invention have been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present invention.

Claims

1. Automatic feeding and marking equipment for power battery cover, characterized by: It includes a battery cover supply device and a battery cover marking device; The battery cover plate supply device comprises a cover plate conveying line for supplying battery cover plates to the battery cover plate marking device, and a position identification mechanism for identifying the direction and positive and negative directions of the battery cover plates is provided on the conveying path of the cover plate conveying line; The battery cover plate marking device comprises a marking rotating tray with a plurality of cover plate carriers, a cover plate loading station, a cover plate marking station, a cover plate unloading station, and an idle station arranged in sequence along the rotation direction of the marking rotating tray; The cover plate marking station is provided with a marking mechanism; The cover plate unloading station includes an NG unloading cabin and a flip surface mechanism for flipping the battery cover plate, and the flip surface mechanism includes a negative pressure adsorption loading platform with a receiving position located at the top of the NG unloading cabin and a flip unloading position that avoids flipping and unloading of the NG unloading cabin; A combined turnover mechanism is provided on the idle station, and the combined turnover mechanism includes a linkage turnover seat with linear displacement and lifting displacement; the linkage turnover seat is provided with a first turnover part for switching displacement between the cover plate conveying line and the cover plate loading station, and a second turnover part for switching displacement between the cover plate unloading station and the NG unloading chamber.

2. The automatic loading and marking equipment for the power battery cover according to claim 1 is characterized in that: The cover plate carrier comprises a carrier base block provided with a loading groove, and a plurality of guide pulleys are arranged on the outer peripheral wall of the loading groove.

3. The automatic loading and marking equipment for the power battery cover according to claim 1 is characterized in that: The cover plate marking station is provided with a marking dust removal mechanism; The marking dust removal mechanism comprises a dust removal crimping cabin with lifting displacement arranged on the top of the cover plate carrier, the dust removal crimping cabin is connected to a dust removal air source and is provided with a marking through passage.

4. The automatic loading and marking equipment for the power battery cover plate according to claim 1 is characterized in that: The flipping surface mechanism includes a U-shaped carrier, a rotating shaft arranged on the U-shaped carrier, and a rotating driving source connected to the rotating shaft in a transmission manner, and the negative pressure adsorption loading platform is arranged on the rotating shaft.

5. The automatic loading and marking equipment for the power battery cover according to claim 1 is characterized in that: The combined turnover mechanism includes a linkage carrier body, the linkage turnover seat includes a linear displacement slider with linear displacement arranged on the linkage carrier body, a lifting displacement carrier with lifting displacement arranged on the linear displacement slider, and a linkage bracket arranged on the lifting displacement carrier, and the first turnover part and the second turnover part are respectively arranged on the linkage bracket.

6. The automatic loading and marking equipment for power battery cover plates according to any one of claims 1 to 5, characterized in that: The feed end of the cover plate conveyor line is connected to a tray feeding device, and the tray feeding device includes a tray feeding mechanism and a cover plate feeding turnover mechanism for circulating between the tray feeding mechanism and the cover plate conveyor line.

7. The automatic loading and marking equipment for the power battery cover plate according to claim 6, characterized in that: The battery cover is provided with a liquid injection hole; The position recognition mechanism includes a position recognition imaging unit for detecting the position of the liquid injection hole and determining the orientation and front and back of the battery cover, and a supplementary light source for supplementary light.

8. The automatic loading and marking equipment for power battery cover according to claim 6 is characterized in that: The cover plate conveying line comprises a full-length conveying line provided with a side guard, and a terminal positioning part for positioning the supply position of the battery cover plate is provided at the conveying terminal of the full-length conveying line.

9. The automatic loading and marking equipment for power battery cover plates according to claim 6, characterized in that: The tray feeding mechanism comprises two tray feeding lines arranged in parallel and spaced apart along the direction of the cover plate conveying line, and any of the tray feeding lines is provided with a loading tray; The pallet feeding device is provided with a joint displacement carrier spanning the tops of the two pallet supply lines, and the joint displacement carrier is provided with the cover plate loading turnover mechanism and a loading pallet turnover mechanism for switching displacement between the two pallet supply lines to carry out loading pallet turnover.

10. The automatic loading and marking equipment for power battery cover plates according to claim 9, characterized in that: Any of the tray supply lines is provided with a stacking area for stacking the loading trays, and the stacking area is provided with a tray bracket with lifting displacement.

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