Lifting appliance and battery production line

Abstract

The utility model provides a lifting appliance and a battery production line, the lifting appliance is used for assembling batteries, and the lifting appliance comprises a frame body; the two first connecting devices are arranged on the frame body in a spaced mode and used for being connected with the two ends of a to-be-hoisted workpiece correspondingly; and the second connecting device is arranged on the frame body, and the second connecting device is located between the two first connecting devices and used for being connected with a workpiece to be hoisted. The two ends of the to-be-hoisted workpiece are lifted through the two first connecting devices arranged on the frame body, and the second connecting device arranged between the two first connecting devices lifts other positions of the to-be-hoisted workpiece, so that tensile force borne by the to-be-hoisted workpiece is uniform, the twisting degree of the to-be-hoisted workpiece under the action of gravity is reduced, and the hoisting efficiency of the to-be-hoisted workpiece is improved. Therefore, the technical problem that the to-be-hoisted workpiece is easy to break is solved.

Description

Technical Field

[0001] This utility model relates to the field of battery hoisting technology, specifically to a hoisting tool and a battery production line. Background Technology

[0002] When multiple battery cells are encapsulated together in a fixed structure and connected to the outside through a unified boundary, this forms a module. Placing the battery module into a casing then constitutes a power battery. Due to the large weight of the module, specially designed lifting equipment is usually required to lift it for assembly; this process is called hoisting.

[0003] Traditional hook-type lifting devices use hooks to engage with grooves at both ends of the battery module to complete the lifting process. However, for some large electrical equipment, the battery modules or battery packs are also large in size, weight and volume. When lifting such battery modules or battery packs, they are prone to twisting under the influence of gravity, which can cause them to break in the middle. Utility Model Content

[0004] The present invention provides a lifting device and a battery production line, which can improve the technical problem in related technologies that the workpiece to be lifted is prone to breakage during lifting.

[0005] In a first aspect, embodiments of this utility model provide a lifting device, comprising:

[0006] Frame;

[0007] Two first connecting devices are spaced apart on the frame for connecting to both ends of the workpiece to be hoisted, respectively; and,

[0008] A second connecting device is disposed on the frame and located between the two first connecting devices for connecting with the workpiece to be hoisted.

[0009] In one embodiment, the lifting device further includes a movable component connected to the frame, and the first connecting device is connected to the movable component so that the first connecting device can move along the extension direction of the frame.

[0010] In one embodiment, the movable component includes a slide rail and a sliding seat, the slide rail being disposed on the frame, the sliding seat being slidably connected to the slide rail, and the sliding seat also being connected to the first connecting device.

[0011] In one embodiment, the moving component further includes:

[0012] A first locking member, wherein the first locking component is disposed on the sliding seat; and

[0013] A second locking member is disposed on the frame and / or the slide rail. The second locking member can cooperate with the first locking member to lock the sliding seat to the frame.

[0014] In one embodiment, the sliding seat includes:

[0015] The connecting part is slidably connected to the slide rail; and,

[0016] The suspended part is connected to the connecting part to be mounted on the frame, and the suspended part is provided with a first through hole;

[0017] The first locking element is a pin that passes through the first through hole. The second locking element is a serrated part. When the serrated part is provided on the frame, it is located at the position of the frame corresponding to the first through hole, so that the pin can abut against the serrated part, thereby locking the relative position between the frame and the sliding seat.

[0018] In one embodiment, the movable component further includes at least one first limiting member disposed on the frame and located on the sliding path of the sliding seat to limit the sliding stroke of the sliding seat.

[0019] In one embodiment, the moving component further includes a positioning element, which is mounted on the first limiting element, and the positioning element is provided on at least one side of the sliding seat along the sliding direction, so that the positioning element can limit the sliding stroke of the sliding seat.

[0020] In one embodiment, the second connecting device includes an adsorption component disposed on the frame, the adsorption component being used to adsorb the workpiece to be hoisted.

[0021] In one embodiment, the adsorption component further includes:

[0022] Multiple suction cups, said suction cups being disposed on the frame; and,

[0023] Multiple vacuum valves are provided, each of which is connected to a suction cup, and the vacuum valves can display the vacuum level between the suction cup and the workpiece to be lifted.

[0024] In one embodiment, hook grooves are provided at both ends of the workpiece to be hoisted, and the first connecting device includes:

[0025] A fastener, one end of which is connected to the frame; and,

[0026] A hook-locking component is connected to the other end of the fixing component to engage the hook groove.

[0027] In one embodiment, the fixing member is provided with a second through hole, and the first connecting device further includes:

[0028] A second limiting member, which passes through the second through hole, has one end connected to the hook lock member and the other end provided with an abutment portion; and...

[0029] An elastic element is sleeved on the second limiting element and compressed between the abutting portion and the fixing element.

[0030] Secondly, embodiments of this utility model provide a battery production line, comprising:

[0031] The lifting device described in the foregoing embodiments; and,

[0032] A drive device, the drive end of which is connected to the lifting device to drive the lifting device to move.

[0033] The beneficial effects of the embodiments of this utility model are as follows:

[0034] In the embodiments of this utility model, by fixing two first connecting devices on the frame to both ends of the workpiece to be hoisted, and fixing a second connecting device between the two first connecting devices to the middle position of the workpiece to be hoisted, the tension on the workpiece to be hoisted is more uniform during the process of the hoisting device lifting the workpiece, thereby reducing the degree of twisting of the workpiece to be hoisted under the action of gravity and improving the technical problem that the workpiece to be hoisted is prone to breakage. Attached Figure Description

[0035] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0036] Figure 1 This is a schematic diagram of the working state of the lifting device provided in an embodiment of this utility model;

[0037] Figure 2 This is a partial structural schematic diagram of the lifting device provided in an embodiment of this utility model;

[0038] Figure 3 This is a partial structural schematic diagram of the lifting device provided in an embodiment of the present invention from another angle;

[0039] Figure 4 This is a left view of the lifting device provided in an embodiment of this utility model;

[0040] Figure 5 This is a partial structural schematic diagram of the lifting device provided in an embodiment of this utility model;

[0041] Figure 6 yes Figure 5 Enlarged view of point A in the middle;

[0042] Figure 7 This is a top view of the sliding seat provided in an embodiment of this utility model;

[0043] Figure 8 This is a three-dimensional schematic diagram of the lifting device provided in an embodiment of this utility model;

[0044] Figure 9 This is a partial structural schematic diagram of the lifting device and the workpiece to be lifted provided in an embodiment of this utility model;

[0045] Figure 10 This is an exploded view of the first connecting device provided in an embodiment of the present invention.

[0046] The labels in the diagram are as follows:

[0047] 1. Lifting gear;

[0048] 11. Frame; 111. Serrated section;

[0049] 12. First connecting device; 121. Fixing member; 1211. Second through hole; 122. Hook and lock member; 123. Second limiting member; 1231. Abutting part; 124. Elastic member;

[0050] 13. Second connecting device; 131. Adsorption assembly; 1311. Suction cup; 1312. Vacuum valve;

[0051] 14. Moving component; 141. Slide rail; 142. Sliding seat; 1421. Connecting part; 1422. Suspended part; 14221. First through hole; 143. Locking element; 144. First limiting element; 1441. Mounting element; 1442. Positioning element;

[0052] 2. Workpieces to be hoisted;

[0053] 21. Hook groove;

[0054] H1, the direction of the frame's extension. Detailed Implementation

[0055] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present utility model. In addition, it should be understood that the specific embodiments described herein are only for illustration and explanation of the present utility model and are not intended to limit the present utility model. In the present utility model, unless otherwise stated, directional terms such as "upper" and "lower" generally refer to the upper and lower positions of the device in actual use or operation, specifically the drawing directions in the accompanying drawings; while "inner" and "outer" refer to the outline of the device.

[0056] According to the first aspect of this utility model, referring to Figure 1 This utility model embodiment provides a lifting device 1, comprising:

[0057] Frame 11;

[0058] Two first connecting devices 12 are spaced apart on the frame 11 for connecting to both ends of the workpiece 2 to be hoisted; and,

[0059] The second connecting device 13 is disposed on the frame 11 and is located between the two first connecting devices 12 for connecting with the workpiece 2 to be hoisted.

[0060] In this embodiment of the invention, the lifting device 1 is used to lift various workpieces 2 to be lifted, such as battery modules (or cell modules). For example, in use, the first connecting device 12 can be operated to connect to both ends of the workpiece 2 to be lifted, and the second connecting device 13 can be operated to connect to the middle position of the workpiece 2 to be lifted. The first connecting device 12 and the second connecting device 13 apply forces in the same direction to the workpiece 2 to be lifted, thereby facilitating the drive equipment to drive the lifting device 1 and move and place the workpiece 2 to be lifted into a suitable position.

[0061] The frame 11, serving as the structure supporting the first connecting device 12 and the second connecting device 13, can adopt various structural forms to adapt to different usage environments. For example, the frame 11 can adopt a rectangular frame structure, including two parallel long sides and two parallel short sides, where connecting the long and short sides in pairs forms a stable frame structure. Optionally, a reinforcing rod can be added in the middle of the frame structure to further enhance the overall structural strength of the frame 11 and reduce the probability of deformation during hoisting. The frame 11 is usually made of metal or alloy materials, such as iron, aluminum, steel, and aluminum alloys, which typically have high strength and toughness, thus ensuring that the lifting device 1 can withstand greater pressure.

[0062] The first connecting device 12 and the second connecting device 13 are used to connect the lifting device 1 to the workpiece 2 to be lifted. The first connecting device 12 and the second connecting device 13 can be installed on the frame 11 in a non-removable manner such as welding, bonding, or integral molding, or in a detachable manner such as bolt connection, snap-fit ​​connection, or pin connection. This embodiment of the invention does not impose any limitations on this. To ensure better connection between the first connecting device 12 and both ends of the workpiece 2, the distance between the two first connecting devices 12 can be controlled to be close to the length of the workpiece 2, thereby improving the stability of the connection between the first connecting device 12 and the workpiece 2. It is understood that the first connecting device 12 can be located at the end of the frame 11 or in the middle of the frame 11, depending on actual needs.

[0063] There are several ways to connect the first connecting device 12 and the second connecting device 13 to the workpiece 2 to be lifted. Taking the first connecting device 12 as an example, the first connecting device 12 can be a retaining ring device, which can be composed of two semi-circular rings. The two semi-circular rings can be closed by bolts or pins to form a closed ring. In specific use, the semi-circular rings are inserted into the connecting structure (e.g., lifting lug) of the workpiece 2 to be lifted, and then the bolts or pins are tightened to achieve the connection between the first connecting device 12 and the workpiece 2 to be lifted. The first connecting device 12 can also be a clamping device, which can be composed of two corresponding clamping plates and an adjusting component that can adjust the distance between the two clamping plates. In use, the workpiece 2 to be lifted is placed between the two clamping plates, and the distance between the two clamping plates is adjusted by the adjusting component. The first connecting device 12 is connected to the workpiece 2 to be lifted by relying on the friction between the clamping plates and the workpiece 2 to be lifted. The first connecting device 12 can also be a magnetic attraction device, such as an electromagnet. When it is necessary to connect the workpiece 2 to be hoisted, the workpiece 2 to be hoisted is attracted by the magnetic force generated by the electromagnet, thereby realizing the connection between the first connecting device 12 and the workpiece 2 to be hoisted.

[0064] The second connecting device 13 is configured similarly to the first connecting device 12, and will not be described again here. It is understood that the first connecting device 12 and the second connecting device 13 can have the same structure or different structures, depending on actual needs.

[0065] In this embodiment of the utility model, by setting two first connecting devices 12 on the frame 11 to lift the two ends of the workpiece 2 to be hoisted, and setting a second connecting device 13 between the two first connecting devices 12 to lift other positions of the workpiece 2 to be hoisted, the tension on the workpiece 2 to be hoisted is more uniform, the degree of twisting of the workpiece 2 to be hoisted under the action of gravity is reduced, thereby improving the technical problem that the workpiece 2 to be hoisted is prone to breakage.

[0066] In some embodiments, refer to Figure 2 The lifting device 1 also includes a moving component 14, which is connected to the frame 11. A first connecting device 12 is connected to the moving component 14 so that the first connecting device 12 can move along the extension direction H1 of the frame.

[0067] In use, the workpiece 2 to be lifted is placed between the two first connecting devices 12. Then, the position of the first connecting devices 12 is adjusted according to the size of the workpiece 2, so that the first connecting devices 12 move along the extension direction H1 of the frame to the vicinity of the workpiece 2. This allows the first connecting devices 12 to better cooperate with the workpiece 2, improving the versatility and applicability of the lifting device 1. It is understood that only one moving component 14 can be provided, with either of the two first connecting devices 12 connected to the moving component 14; alternatively, two moving components 14 can be provided, with each first connecting device 12 connected to one moving component 14, thereby increasing the adjustment range of the distance between the two first connecting devices 12 and further improving the applicability of the lifting device 1.

[0068] Taking the first connecting device 12 as an example, the moving component 14 can be a lead screw arranged along the extending direction of the frame 11. The first connecting device 12 is sleeved on the lead screw, so that when the lead screw rotates, the first connecting device 12 will also move along the extending direction of the frame 11. The moving component 14 can also be a gear and rack transmission structure, wherein the gear is rotatably connected to the frame 11, the rack is connected to the first connecting device 12, and the gear and rack mesh. When the gear rotates, it can drive the rack to move, thereby driving the first connecting device 12 to move. It is understood that the moving component 14 can also be other structures that can move the first connecting device 12 or the second connecting device 13, and this embodiment of the utility model does not limit this.

[0069] By connecting the movable component 14 to the first connecting device 12, the first connecting device 12 can adapt to workpieces 2 of different lengths and sizes to be lifted, reducing the cost and time of changing different lifting tools 1 due to changes in the size of the workpieces 2 to be lifted, thereby improving the production efficiency of battery modules.

[0070] In some embodiments, refer to Figure 3 The moving component 14 includes a slide rail 141 and a sliding seat 142. The slide rail 141 is disposed on the frame 11, and the sliding seat 142 is slidably connected to the slide rail 141. The sliding seat 142 is also connected to the first connecting device 12.

[0071] By setting a sliding seat 142 and a slide rail 141 that can slide relative to each other, and setting the first connecting device 12 on the sliding seat 142, when it is necessary to lift workpieces 2 of different sizes, the operator can determine the working position of the first connecting device 12 according to the length and position of the workpiece 2 to be lifted, and then control the sliding seat 142 to drive the first connecting device 12 to move relative to the slide rail 141, and move the first connecting device 12 to the working position, thereby completing the stable connection between the first connecting device 12 and the workpiece 2 to be lifted.

[0072] The slide rail 141 and sliding seat 142 are typically made of alloy materials, such as aluminum alloy or stainless steel, which offer good strength and corrosion resistance, thus extending the service life of the lifting device 1. The bottom of the sliding seat 142 can be designed with a groove that matches the slide rail 141, allowing the sliding seat 142 to slide smoothly on the slide rail 141. A driving component can also be installed on the frame 11 or the slide rail 141 to drive the movement of the sliding seat 142 on the slide rail 141, enabling the operator to remotely control the movement of the first connecting device 12, further improving operational portability and work efficiency. The driving component can be a cylinder, motor, or other similar structure; this embodiment of the invention does not impose any limitations on this.

[0073] In some embodiments, refer to Figures 4-6 The moving component 14 also includes at least one first limiting member 144, which is disposed on the frame 11 and located on the sliding path of the sliding seat 142 to limit the sliding stroke of the sliding seat 142.

[0074] The locking component 143 is used to switch between the locked and unlocked states of the sliding seat 142 and the frame 11. This ensures that during the hoisting operation, when the operator moves the sliding seat 142 to a suitable position, the sliding seat 142 can be firmly locked onto the frame 11, reducing the probability of the sliding seat 142 moving unexpectedly due to external forces or other factors, thereby ensuring the stability and safety of the hoisting operation. When it is necessary to continuously hoist workpieces 2 of different sizes, the operator can operate the locking component 143 to unlock the sliding seat 142 from the frame 11, so as to move the position of the sliding seat 142 and ensure the stability during hoisting.

[0075] The locking element 143 can have various possible structures. For example, the locking element 143 can be a screw passing through the sliding seat 142, allowing the operator to control the screw to connect with the threaded hole after the sliding seat 142 has moved to the appropriate position, thereby locking the sliding seat 142 and the frame 11. The threaded connection also ensures the stability of the lock. Alternatively, the first locking element 143 can be in the form of a pin, with multiple pin holes spaced apart on the frame 11 or the slide rail 141. When locking is required, the pin is inserted into the pin holes, causing the sliding seat 142 and the frame 11 to fit tightly, achieving the purpose of locking. When it is necessary to loosen the sliding seat 142 and the frame 11, the pin can be pulled out, making operation convenient.

[0076] In this embodiment of the utility model, the locking member 143 is used to lock the sliding seat 142 to the frame 11, which effectively reduces the probability of the sliding seat 142 moving unexpectedly during hoisting due to factors such as vibration and external impact, thereby ensuring the stability of the connection between the lifting device 1 and the workpiece 2 to be hoisted and improving the safety of operation; in addition, the locking member 143 has a simple structure, is easy to install, and has a low learning cost for operators, thereby improving the convenience of operation and thus improving the work efficiency of hoisting operation.

[0077] In some embodiments, refer to Figure 6 and Figure 7 The sliding seat 142 includes:

[0078] Connecting part 1421, the connecting part 1421 is slidably connected to the slide rail 141; and,

[0079] The suspended part 1422 is connected to the connecting part 1421 to be mounted on the frame 11. The suspended part 1422 is provided with a first through hole 14221.

[0080] The locking member 143 is installed in the first through hole 14221, and the frame 11 is provided with a serrated part 111 at the first through hole 14221 so that the locking member 143 can abut against the serrated part 111, thereby locking the relative position between the frame 11 and the sliding seat 142.

[0081] The movement of the locking member 143 is restricted by the friction between the locking member 143 and the serrated part 111, thereby restricting the movement of the sliding seat 142 and the first connecting device 12 and / or the second connecting device 13 connected to the sliding seat 142, thereby improving the stability of the connection between the lifting device 1 and the workpiece 2 to be lifted.

[0082] The sliding seat 142 is divided into a connecting part 1421 and a suspended part 1422. The connecting part 1421 can be provided with a structure that cooperates with the slide rail 141, so that the sliding seat 142 can be slidably connected with the slide rail 141. The suspended part 1422 is mounted on the frame 11, that is, the suspended part 1422 and the frame 11 are spaced apart, so that the operator can easily observe the state of the locking member 143 after passing through the suspended part 1422, and judge whether the locking member 143 and the sawtooth part 111 are locked in place. The sawtooth part 111 is provided on the frame 11, and is usually composed of multiple evenly distributed sawtooths with a certain inclination angle. The height of each sawtooth can be between 2mm and 15mm, and the inclination angle of the sawtooth can be between 20° and 80°, which can be set according to actual needs to ensure that there is sufficient friction between the locking member 143 and the sawtooth. Furthermore, since the serrations in the serrated part 111 are continuous, the locking member 143 can be connected to any position in the serrated part 111 to achieve locking, which makes the movement of the first connecting device 12 and / or the second connecting device 13 more accurate, and further improves the stability of the connection between the lifting device 1 and the workpiece 2 to be lifted.

[0083] In this embodiment of the present invention, the locking member 143 can be a pin. The pin and the first through hole 14221 can be slidably connected, making the connection and disconnection between the pin and the serrated portion 111 more convenient. Alternatively, the pin and the first through hole 14221 can be threadedly connected, allowing the pin to apply greater pressure to the serrated portion 111 when connected, thereby increasing the friction between the pin and the serrated portion 111 and reducing the probability of the sliding seat 142 shifting due to accident. It is understood that the shape and size of the locking member 143 can be set according to actual needs, as long as it can cooperate with the serrated portion 111; this embodiment of the present invention does not impose any limitations in this regard.

[0084] In some embodiments, refer to Figure 3 The moving component 14 also includes at least one first limiting member 144, which is disposed on the frame 11 and located on the sliding path of the sliding seat 142 to limit the sliding stroke of the sliding seat 142.

[0085] By setting the first limiting member 144, when the sliding seat 142 moves to a certain position on the slide rail 141, the sliding seat 142 abuts against the first limiting member 144, thereby preventing the sliding seat 142 from continuing to move and preventing the sliding seat 142 from falling off the slide rail 141, which could cause damage to the lifting device 1 or the workpiece 2 to be lifted.

[0086] The first limiting member 144 can be a fixedly installed block or boss, the shape and size of which can be set as needed. The first limiting member 144 is positioned around the end of the slide rail 141. When the sliding seat 142 slides to a predetermined position, the block or boss will prevent the sliding seat 142 from continuing to move forward, thereby limiting its sliding stroke. In this case, the first limiting member 144 can be installed on the frame 11 through a non-removable connection method such as welding, bonding, or integral molding. Alternatively, the first limiting member 144 can be installed on the frame 11 through a detachable connection method such as snap-fit ​​or threaded connection. This embodiment of the invention does not impose any limitations on this method.

[0087] The first limiting member 144 can also be in the form of a movable setting, such as a lifting cylinder. When the driving end of the lifting cylinder is raised, it will prevent the sliding seat 142 from moving. When the driving end of the lifting cylinder is lowered, the sliding seat 142 can move freely, which makes it convenient for operators to replace, clean and maintain the sliding seat 142.

[0088] In some embodiments, refer to Figure 3 At least one first limiting member 144 includes:

[0089] Mounting component 1441 is fixedly connected to frame 11; and,

[0090] Positioning element 1442 is adjustablely mounted on mounting element 1441. Positioning element 1442 is used to abut against sliding seat 142 to limit the sliding stroke of sliding seat 142.

[0091] In practical use, after the operator controls the sliding seat 142 to slide to a suitable working position, the operator can control the relative movement between the positioning part 1442 and the mounting part 1441, so that the positioning part 1442 abuts against the sliding seat 142, thereby reducing the probability of the sliding seat 142 moving when the lifting device 1 is lifting the workpiece 2 to be lifted, and improving the stability of the lifting device 1.

[0092] The mounting component 1441 is fixed to the frame 11, serving as a load-bearing structure and preventing the sliding seat 142 from dislodging from the slide rail 141. The positioning component 1442 can be a rod-shaped component threadedly connected to the mounting component 1441. The relative movement between the positioning component 1442 and the mounting component 1441 can be achieved by rotating in the forward or reverse direction. It is understandable that positioning components 1442 can be set on both sides of the sliding direction of the sliding seat 142, thereby further improving the stability of the lifting device 1 during lifting.

[0093] In some embodiments, refer to Figure 5 The second connecting device 13 includes an adsorption component 131 disposed on the frame 11, which is used to adsorb the workpiece 2 to be hoisted.

[0094] In practical operation, since the second connecting device 13 is usually connected to the middle position of the workpiece 2 to be lifted, and the middle position of the workpiece 2 to be lifted in related technologies is usually not provided with a connecting structure, in this embodiment of the utility model, the second connecting device 13 is tightly connected to the workpiece 2 to be lifted by adsorption. It is only necessary to align the second connecting device 13 with a relatively flat surface on the workpiece 2 to satisfy the adsorption between the second connecting device 13 and the workpiece 2 to be lifted, thereby avoiding the need to set an additional connecting structure on the workpiece 2 to cooperate with the second connecting device 13, and improving the adaptability of this lifting device 1. The adsorption component 131 can be an electromagnet, a suction cup 1311, etc., and can be set according to actual needs. This embodiment of the utility model does not limit this.

[0095] In some embodiments, refer to Figure 5 and Figure 8 The adsorption component 131 also includes:

[0096] Multiple suction cups 1311 are disposed on the frame 11; and,

[0097] Multiple vacuum valves 1312 are provided, each vacuum valve 1312 is connected to a suction cup 1311, and the vacuum valve 1312 can display the vacuum level between the suction cup 1311 and the workpiece 2 to be lifted.

[0098] Multiple suction cups 1311 can evenly connect to the workpiece 2 to be lifted, thereby providing uniform tension and allowing the workpiece 2 to move more smoothly, further reducing the probability of breakage. A vacuum valve 1312 corresponds to each suction cup 1311, serving as an on / off switch for each suction cup 1311 and determining the vacuum level between the suction cup 1311 and the workpiece 2 based on the air pressure at the suction cup 1311, thus facilitating the operator's judgment of the connection status. The vacuum level refers to the degree of rarefaction of gas under vacuum conditions, typically expressed as a pressure value.

[0099] Since the workpiece 2 to be lifted is usually a cell module or battery module, the number of suction cups 1311 can be controlled to be the same as the number of cells or batteries, and they can be made to correspond one-to-one, thereby improving the uniformity and stability of the suction force of the second connecting device 13 on the cell module or battery module.

[0100] Understandably, an external vacuum pump is typically required and connected to the vacuum valve 1312 to create a negative pressure at the suction cup 1311, thereby connecting the suction cup 1311 to the workpiece 2 to be lifted. However, the vacuum pump is not the subject of this embodiment and will not be described in detail here.

[0101] In some embodiments, refer to Figure 9Both ends of the workpiece 2 to be hoisted are provided with hook grooves 21, and the first connecting device 12 includes:

[0102] Fastener 121, one end of fastener 121 is connected to frame 11; and,

[0103] Hook lock 122 is connected to the other end of the fixing member 121 to engage with hook groove 21.

[0104] In practical use, the workpiece 2 to be hoisted is first placed between the two first connecting devices 12, and the hook groove 21 is oriented toward the hook locking part 122. Then, the hook locking part 122 and the hook groove 21 are controlled to cooperate with each other to realize the connection between the hoisting device 1 and the workpiece to be hoisted, so as to facilitate the subsequent hoisting and movement of the workpiece 2.

[0105] One end of the hook-lock component 122 is typically designed to be curved, allowing it to hook and connect with a pre-set hook groove 21 on the workpiece 2 to be lifted. The end of the hook-lock component 122 connected to the workpiece 2 to be lifted may also be provided with multiple hook portions to accommodate situations where the workpiece 2 to be lifted has multiple hook grooves 21. At the same time, multiple hook portions can also provide a more uniform pulling force, improving the stability of the lifting device 1.

[0106] In some embodiments, refer to Figure 10 The fastener 121 is provided with a second through hole 1211, and the first connecting device 12 further includes:

[0107] The second limiting member 123 passes through the second through hole 1211. One end of the second limiting member 123 is connected to the hook lock member 122, and the other end of the second limiting member 123 is provided with an abutment portion 1231; and...

[0108] The elastic element 124 is sleeved on the second limiting element 123 and compressed between the abutment part 1231 and the fixing element 121.

[0109] Due to the existence of errors and differences in models, the size of the hook groove 21 and the hook locking component 122 cannot be perfectly matched. Therefore, in this embodiment of the invention, an elastic component 124 is provided. When it is necessary to control the connection between the hook locking component 122 and the workpiece 2 to be hoisted, the operator can pull down the hook locking component 122, causing the second limiting component 123 to move downwards and further compress the elastic component 124. After the hook locking component 122 and the hook groove 21 are engaged, the compressed elastic component 124 provides elastic force, causing the second limiting component 123 to move upwards, thereby driving the hook locking component 122 to move upwards, so that the hook locking component 122 and the hook groove 21 are firmly abutted together, improving the stability of the connection between the two. The elastic component 124 can be a spring, rubber ring, or other structure, and this embodiment of the invention does not limit this.

[0110] According to a second aspect of the present invention, a battery production line is provided, comprising:

[0111] The lifting device 1 in the aforementioned embodiments; and,

[0112] A drive unit, the drive end of which is connected to the lifting device 1 to drive the lifting device 1 to move.

[0113] Since the battery production line includes the aforementioned lifting device 1, it possesses all the beneficial effects of the lifting device 1, which will not be elaborated further in this embodiment. The drive device can be a motor drive, a hydraulic drive, a pneumatic drive, etc., selected according to actual needs; this embodiment does not impose any limitations on this.

[0114] The embodiments of this utility model have been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of this utility model. The description of the above embodiments is only for the purpose of helping to understand the method and core ideas of this utility model. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of this utility model. Therefore, the content of this specification should not be construed as a limitation of this utility model.

Claims

1. A lifting device for assembling batteries, characterized in that, include: Frame; Two first connecting devices are spaced apart on the frame to be connected to both ends of the workpiece to be hoisted, respectively. and, A second connecting device is disposed on the frame and located between the two first connecting devices for connecting with the workpiece to be hoisted.

2. The lifting device according to claim 1, characterized in that, The lifting device also includes a movable component connected to the frame, and a first connecting device connected to the movable component so that the first connecting device can move along the extension direction of the frame.

3. The lifting device according to claim 2, characterized in that, The moving component includes a slide rail and a sliding seat. The slide rail is disposed on the frame, and the sliding seat is slidably connected to the slide rail. The sliding seat is also connected to the first connecting device.

4. The lifting device according to claim 3, characterized in that, One of the moving component and the frame is further provided with a locking element for locking the sliding seat to the frame.

5. The lifting device according to claim 4, characterized in that, The sliding seat includes: The connecting part is slidably connected to the slide rail; and, The suspended part is connected to the connecting part to be mounted on the frame, and the suspended part is provided with a first through hole; The locking member is installed in the first through hole, and the frame body is provided with a serrated part corresponding to the first through hole, so that the locking member can abut against the serrated part, thereby locking the relative position between the frame body and the sliding seat.

6. The lifting device according to claim 3, characterized in that, The moving component further includes at least one first limiting member disposed on the frame and located on the sliding path of the sliding seat to limit the sliding stroke of the sliding seat.

7. The lifting device according to claim 6, characterized in that, At least one of the first limiting members includes: Mounting component, the mounting component being fixedly connected to the frame; and, A positioning element is adjustablely mounted on the mounting element and is used to abut against the sliding seat to limit the sliding stroke of the sliding seat.

8. The lifting device according to any one of claims 1-7, characterized in that, The second connecting device includes an adsorption component disposed on the frame, the adsorption component being used to adsorb the workpiece to be hoisted.

9. The lifting device according to claim 8, characterized in that, The adsorption assembly further includes: Multiple suction cups, said suction cups being disposed on the frame; and, Multiple vacuum valves are provided, each of which is connected to a suction cup, and the vacuum valves can display the vacuum level between the suction cup and the workpiece to be lifted.

10. The lifting device according to any one of claims 1-7, characterized in that, Both ends of the workpiece to be hoisted are provided with hook grooves, and the first connecting device includes: A fastener, one end of which is connected to the frame; and, A hook-locking component is connected to the other end of the fixing component to engage the hook groove.

11. The lifting device according to claim 10, characterized in that, The fastener is provided with a second through hole, and the first connecting device further includes: A second limiting member, which passes through the second through hole, has one end connected to the hook lock member and the other end provided with an abutment portion; and... An elastic element is sleeved on the second limiting element and compressed between the abutting portion and the fixing element.

12. A battery production line, characterized in that, include: The lifting device as described in any one of claims 1-11; and, A drive device, the drive end of which is connected to the lifting device to drive the lifting device to move.

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