A lifting tool

Abstract

The utility model relates to a technical field of lifting appliance, concretely relates to a lifting appliance frock, including frame, hoist connecting portion, snatch mechanism and protection mechanism, the hoist connecting portion sets up in the frame, the hoist connecting portion is used for connecting with external lifting equipment, the snatch mechanism sets up in the lower part of hoist connecting portion, the snatch mechanism is used for grabbing the top and / or side of goods, the protection mechanism includes movable arm, is equipped with stop portion on movable arm, movable arm with frame swing joint, to make stop portion can move between protection area and avoiding area, the protection area is the area just below the goods that snatch mechanism grabbed, the avoiding area is other area except the protection area, the lifting appliance work that the utility model provides can improve the carrying efficiency and carrying security.

Description

Technical Field

[0001] This utility model relates to the field of lifting tool technology, and specifically to a lifting tool fixture. Background Technology

[0002] In the current production process of new energy electric vehicles, the hoisting and handling of target objects such as battery cell modules generally rely on traditional lifting tools and fixtures. Traditional lifting tools mostly use a single clamping or adsorption method, which makes it easy for battery cell modules to shift or slip during handling.

[0003] Therefore, existing lifting tools lack reliable fall protection mechanisms. Once the clamping fails or the air pressure fluctuates, the target object, such as the module, is at high risk of falling directly, which seriously threatens the safety of operation and the integrity of the equipment. There is an urgent need for a lifting tool with redundant protection. Utility Model Content

[0004] In view of the shortcomings of the prior art, the purpose of this utility model is to provide a lifting tool that can improve handling efficiency and handling safety.

[0005] To achieve the above and other related objectives, this utility model provides a lifting fixture, comprising:

[0006] frame;

[0007] A hoisting connection part is provided on the frame, and the hoisting connection part is used to connect with external lifting equipment;

[0008] A gripping mechanism is disposed at the lower part of the hoisting connection, and the gripping mechanism is used to grip the top and / or side of the goods;

[0009] The protective mechanism includes a movable arm, and the movable arm is provided with a stop.

[0010] The movable arm is movably connected to the frame so that the stop can move between a protected area and a clearance area. The protected area is the area directly below the cargo being gripped by the gripping mechanism, and the clearance area is any area other than the protected area.

[0011] In one embodiment of this utility model, the protective mechanism is provided in two sets, and the two sets of protective mechanisms are respectively symmetrically arranged on both sides of the frame;

[0012] The movable arm is driven manually or by a drive mechanism, enabling the stop to move between the protected area and the avoidance area.

[0013] In one embodiment of this utility model, the driving member drives the movable arm to move through the transmission member. The driving member includes a self-locking structure for locking its own output shaft. The position of the movable arm is maintained by the displacement of the transmission member driven by the driving member.

[0014] In one embodiment of the present invention, a positioning component connected to the frame is further included, the positioning component including at least one positioning element that matches and positions the goods or the pallet of the goods.

[0015] In one embodiment of the present invention, the movable arm includes at least two arm bodies arranged in parallel and spaced apart. One end of the two arm bodies is hinged or slidably connected to the frame through a movable member, and the other end of the two arm bodies is connected through the stop portion.

[0016] In one embodiment of the present invention, the positioning assembly further includes a bracket for connecting the positioning element and the frame;

[0017] The positioning component is located between the two arms of the movable arm, and the positioning element is suspended outside the frame by the bracket to avoid the movement trajectory of the two adjacent arms and the stop.

[0018] In one embodiment of the present invention, the frame includes two sets of guide rail structures, which are respectively axially symmetrically arranged on both sides of the gripping mechanism;

[0019] Each of the guide rail structures includes a first section of guide rail arranged along the height direction of the frame and a second section of guide rail arranged toward the gripping mechanism, and the movable component is slidably disposed in the guide rail structure.

[0020] In one embodiment of this utility model, the gripping mechanism includes:

[0021] A height adjustment assembly, located at the lower part of the frame, includes a power input unit and a linear displacement output unit;

[0022] The gripping component is connected to the linear displacement output unit.

[0023] In one embodiment of the present invention, the gripping component includes an adsorption unit for adsorbing the top of the goods and / or a clamping unit for clamping the sides of the goods.

[0024] In one embodiment of the present invention, the clamping unit includes two sets of side clamping components, and the two sets of side clamping components are axially symmetrically arranged on the other two sides of the frame;

[0025] The side clamping assembly includes a first driving unit and a clamping component, wherein the first driving unit is pulsatorically connected to the clamping component.

[0026] In summary, this utility model's lifting fixture effectively solves the problem of slippage and fall risks during battery cell module handling caused by the combined operation of the gripping mechanism and the protective mechanism. The gripping mechanism ensures stable lifting of the module during the hoisting process. The protective mechanism, through the position switching of the stop, automatically or manually moves the stop to the protective area after the gripping mechanism completes the clamping, forming a redundant protection mechanism. Even if the gripping mechanism fails unexpectedly, the stop can still provide bottom support, significantly reducing the risk of module fall. In addition, the lifting fixture has a simple structure and can improve handling efficiency. Attached Figure Description

[0027] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art 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.

[0028] Figure 1 This is a front view of a lifting fixture according to an embodiment of the present invention, wherein the stop is located in the protected area;

[0029] Figure 2 This is a side view of the lifting fixture in one embodiment of the present utility model;

[0030] Figure 3 This is a front view of a lifting fixture according to an embodiment of the present invention, wherein the stop is located in the avoidance area;

[0031] Figure 4 This is a schematic diagram showing the arrangement of the guide rail structure on the frame in one embodiment of the present invention.

[0032] Figure 5 This is a three-dimensional structural diagram of the lifting tool in one angle state according to one embodiment of the present invention;

[0033] Figure 6 This is a three-dimensional structural diagram of the lifting tooling in another angle state according to one embodiment of the present invention;

[0034] Component labeling: Frame 1, Guide rail structure 11, Lifting connection 2, Gripping mechanism 3, Height adjustment assembly 31, Power input unit 311, Linear displacement output unit 312, Gripping assembly 32, Adsorption unit 321, Clamping unit 322, First drive unit 3221, Clamping component 3222, Protective mechanism 4, Movable arm 41, Arm body 411, Stop 42, Drive component 43, Movable component 45, Positioning assembly 5, Positioning element 51, Bracket 52, First section guide rail 111, Second section guide rail 112, Hinge rod 46, Limiting structure 461. Detailed Implementation

[0035] The following specific examples illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. This utility model can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this utility model. It should be noted that, in the absence of conflict, the following embodiments and features in the embodiments can be combined with each other. It should also be understood that the terminology used in the embodiments of this utility model is for describing specific implementation schemes and not for limiting the scope of protection of this utility model. Test methods in the following embodiments that do not specify specific conditions are generally performed under conventional conditions or according to the conditions recommended by the respective manufacturers.

[0036] Please see Figures 1 to 6 It should be understood that the structures, proportions, sizes, etc., depicted in the accompanying drawings are merely for illustrative purposes to aid those skilled in the art and are not intended to limit the scope of this invention. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to size, without affecting the effectiveness and purpose of this invention, should still fall within the scope of the technical content disclosed in this invention. Furthermore, the terms such as "upper," "lower," "left," "right," "middle," and "one" used in this specification are merely for clarity and are not intended to limit the scope of this invention. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of this invention.

[0037] When numerical ranges are given in the embodiments, it should be understood that, unless otherwise stated in this invention, both endpoints of each numerical range and any value between the two endpoints may be selected. Unless otherwise defined, all technical and scientific terms used in this invention, as well as the prior art known to those skilled in the art and the description of this invention, may be implemented using any prior art methods, devices, and materials similar to or equivalent to those described, used, or made of materials in the embodiments of this invention.

[0038] Please see Figure 1-6 This utility model provides a lifting fixture, including a frame 1, a lifting connection part 2, a gripping mechanism 3, and a protective mechanism 4. The lifting connection part 2 is disposed on the frame 1 and is used to connect with external lifting equipment. The gripping mechanism 3 is disposed at the lower part of the lifting connection part 2 and is used to grip the top and / or side of the goods. The protective mechanism 4 includes a movable arm 41, and a stop part 42 is provided on the movable arm 41. The movable arm 41 is movably connected to the frame 1 so that the stop part 42 can move between a protected area and a clearance area. The protected area is the area directly below the goods gripped by the gripping mechanism 3, and the clearance area is other areas besides the protected area.

[0039] It should be noted that the lifting connection part 2 serves as the interface between the lifting tooling and external lifting equipment (such as overhead cranes or hoists), and its function is to transmit lifting power and maintain structural stability. The lifting connection part 2 can, for example, use a hook-type connection, matching the external lifting chain through a hook-shaped structure; it can also use a ring-type connection, securing it to the lifting rope using ring fasteners; or it can use a quick connector, achieving quick assembly and disassembly with the lifting equipment through buckles or bolts. The gripping mechanism 3 is mainly used for fixing goods such as battery cell modules from multiple angles or from the top. For example, the gripping mechanism 3 is a suction cup or a combination of a suction cup and a clamping plate. The suction cup adheres to the top of the battery cell module through vacuum adsorption or electromagnetic force, and the clamping plate clamps the goods such as the battery cell module from both sides through side clamping components. Suction cups include, for example, vacuum suction cups and electromagnetic suction cups, suitable for modules with different surface materials; the clamping plate can be driven by a screw-nut pair, a rack and pinion mechanism, or a hydraulic cylinder, with the clamping force controlled by a manual crank or motor. Furthermore, the gripping mechanism 3 can be expanded into a simplified structure with only top adsorption or only side clamping to adapt to the handling needs of lightweight or small-sized modules. The gripping mechanism 3 enables rapid gripping of goods, thereby improving handling efficiency. The protective mechanism 4 is movably connected to the frame 1 via a movable arm 41. By moving the movable arm 41, the stop 42 switches between the protected area and the avoidance area. When the stop 42 is in the protected area, it provides dynamic protection for the lifting process. It should be understood that the movable arm 41 is movably connected to the frame 1, and the part of the lifting connection 2 or gripping mechanism 3 connected to the frame 1 can also be considered as part of the frame 1. This part is fixedly connected to the frame 1. Therefore, when the movable arm 41 is movably connected to the part of the lifting connection 2 or gripping mechanism 3 that is fixedly connected to the frame 1, it can be considered as movably connected to the frame 1. The movable connection includes hinged, sliding, or pivot connections. The switching mechanism of the stop part 42 can be realized in a variety of ways, such as a pneumatically controlled telescopic cylinder, which uses air pressure to drive the movable arm 41 to move the stop part 42 telescopically; the specific shape of the stop part 42 can be a flat support or an arc-shaped support structure to adapt to the shape characteristics of the bottom of different modules; when the stop part 42 is located in the protected area, it can be in a state of contact with the bottom of the goods or in a state of non-contact; the protective mechanism 4 can also integrate an anti-slip structure (such as a rubber coating or raised texture) to further enhance the protection capability of goods such as battery cell modules.

[0040] In this case, the lifting fixture further enhances safety through the combination of the gripping mechanism 3 and the protective mechanism 4. In the gripping mechanism 3, for example, the synergistic work of the suction cups and clamping plates forms a three-dimensional fixation of the battery cell module. The suction cups adhere to the module surface through vacuum or electromagnetic action, providing initial fixation; the clamping plates apply uniform clamping force to the sides of the battery cell module through screw drive or rocker wheel drive, eliminating positioning errors caused by dimensional deviations. The position switching of the stop part 42 of the protective mechanism 4 is achieved through the driving component 43 (such as a pneumatic or electric drive device). After the gripping mechanism 3 completes the module lifting, the stop part 42 automatically extends to the bottom of the module through mechanical linkage or pneumatic telescopic extension, forming a second protective barrier. This process, through physical isolation and force transmission mechanisms, ensures that the module can still be safely lifted in case of accidents, preventing direct falls.

[0041] Please see Figure 1-3 As an optional embodiment of this case, the protective mechanism 4 is provided in two sets, and the two sets of protective mechanisms 4 are respectively symmetrically arranged on both sides of the frame 1;

[0042] The movable arm 41 is driven manually or by the drive unit 43 so that the stop part 42 can move between the protected area and the avoidance area.

[0043] It should be noted that the stop 42 of the protective mechanism 4 is driven to move by the drive member 43 to support the bottom of the goods; the stop 42 can be reset to the avoidance area by the drive member 43 or by other reset units; wherein, the drive member 43 is, for example, a cylinder, an electric telescopic rod, or a motor; the drive member 43 can detect the clamping force state of the gripping mechanism 3 by a pressure sensor, or monitor the negative pressure state of the suction cup by an air pressure sensor, or the drive member 43 may also include a mechanical transmission component linked with the clamping component 3222, and drive the movable arm 41 to move by moving the clamping component 3222; when the pressure sensor detects that the clamping force is lower than a preset threshold or the air pressure sensor detects an abnormal negative pressure, the drive member 43 drives the movable arm 41, so that the stop 42 moves to the protective area. Alternatively, the distance state of the goods away from or near the ground can be detected by a distance sensor, and the external signal can be converted into mechanical motion to drive the stop 42 to move. The reset unit must ensure that the stop part 42 returns to its initial state after the risk is eliminated. For example, the elastic reset component pulls the stop part 42 back to its original position by the restoring force of the compression spring; the magnetic reset component uses the attraction force of a permanent magnet or electromagnet to attract the metal stop part 42 away from the clearance area; the movable arm 41 can also be driven to move manually. Generally, when moving manually, after the movable arm 41 moves to the predetermined position, the position of the movable arm 41 can be maintained by fixing the movable arm 41 to other fixed parts of the lifting fixture, such as the frame 1, by using pins or fasteners, so that the corresponding position of the movable arm 41 can be fixed.

[0044] Please see Figure 1-3 As an optional embodiment of this case, the driving member 43 drives the movable arm 41 to move through the transmission member. The driving member 43 includes a self-locking structure for locking its own output shaft. The position of the movable arm 41 is maintained by the displacement of the driving member 43 driving the transmission member.

[0045] It should be noted that the driving component 43 drives the movable arm 41 to move through the transmission component. When the driving component 43 is a servo motor or stepper motor with a self-locking function, the transmission component can be a gear transmission assembly. The driving component 43 drives the movable arm 41, which is hinged to the frame 1, to rotate through the transmission component. When the driving component 43 stops driving, the movable arm 41 stops rotating and remains in its current position. When the driving component 43 is a telescopic cylinder or an electric telescopic rod, the transmission component is a telescopic rod. The movable arm 41 is hinged to the frame 1 through the movable component 45, such as a rotating shaft. One end of the rod is fixedly connected to the rotating shaft, and the other end is hinged to the output shaft of the driving component 43. The transmission component is fixed to the frame 1. The transmission component drives the rod to move, causing the movable arm 41 to rotate around the rotating shaft hinged to the frame 1 to achieve position switching. In addition, the self-locking structure is, for example, an electromagnetic brake. The electromagnetic brake automatically locks the output shaft when the power is off, which can effectively prevent the movable arm 41 from accidentally displacing in the non-driving state and ensure that the movable arm 41 is stably locked in the target position.

[0046] Traditional drive mechanisms, lacking a self-locking function, are prone to causing the movable arm 41 to deviate during power interruptions or sudden load changes, leading to the failure of the protective mechanism 4 or the falling of goods. This invention effectively solves the above problems by integrating a self-locking structure into the drive component 43. The self-locking structure automatically locks the output shaft after the drive component 43 stops, preventing the movable arm 41 from disengaging from its target position due to inertia or external forces, thus ensuring safety during cargo lifting.

[0047] Please see Figure 1 and 5 As an optional embodiment of this case, the lifting tooling further includes a positioning component 5 connected to the frame 1, the positioning component 5 including at least one positioning element 51 that matches and positions the goods or the pallet of the goods.

[0048] It should be noted that the positioning element 51 can be designed to adapt to the positioning features of different modules and pallets. The pallet and the goods have a positioning relationship. In this case, the positioning element 51 can match the positioning holes or bosses of the goods or the pallet through pins, buckles, or guide blocks. For example, a tapered guide pin can be inserted by being guided by an inclined surface, or a guide block can be embedded in the pallet groove, or a magnetic attraction device can be used to track metal parts. Furthermore, the positioning assembly 5 can limit displacement through physical contact mechanical positioning, such as pins or wedges; it can also achieve dynamic calibration through non-contact detection such as photoelectric sensors or visual recognition modules; and it can attract or track the metal frame through electromagnetic positioning, such as permanent magnet arrays or electromagnet combinations. The positioning assembly 5 described in this case, by using the positioning element 51 set on the side or bottom of the frame 1, can correct the positional deviation of the battery cell module during the hoisting process, improving the gripping accuracy before hoisting and the assembly accuracy after hoisting. Positioning component 5 establishes a spatial position benchmark between the lifting device and the goods by matching and positioning with the goods or their pallets, eliminating degree-of-freedom deviations and significantly improving the accuracy of the gripping mechanism 3 in gripping the goods before lifting. Alternatively, it improves the alignment accuracy between the battery cell module and the battery casing after lifting the battery cell module, reducing the risk of assembly interference, lowering the frequency of adjustments by operators, and enhancing the automation level of the production line.

[0049] Please see Figure 1 and Figure 5 As an optional embodiment of this case, the movable arm 41 includes at least two arm bodies 411 arranged in parallel and spaced apart. One end of the two arm bodies 411 is hinged or slidably connected to the frame 1 through a movable member 45, and the other end of the two arm bodies 411 is connected through the stop part 42.

[0050] It should be noted that the two arms 411 can be integrated or separate. One end of each arm 411 is connected to the frame 1 via a movable member 45, which can be a hinged or sliding connection structure. Hinged connections include pin hinges, rotating shaft connections, or ball joint connections; sliding connections can be achieved through two linear or arc-shaped guide rails cooperating with a slider assembly. The other end of each arm 411 is connected via a stop 42, the size of which needs to be adapted to the protection requirements of modules of different widths.

[0051] Please see Figure 1 and Figure 5 As an optional embodiment of this case, the positioning component 5 further includes a bracket 52 for connecting the positioning element 51 and the frame 1;

[0052] The positioning component 5 is located between the two arm bodies 411 of the movable arm 41, and the positioning element 51 extends out of the frame 1 through the bracket 52 to avoid the movement trajectory of the two adjacent arm bodies 411 and the stop part 42.

[0053] It should be noted that the bracket 52 can adopt a rigid cantilever structure or an adjustable support frame. For example, the L-shaped welded bracket 52 is fixed to the side wall of the frame 1 by bolts, or the telescopic bracket 52 can be adjusted in length by a slide rail and a locking device to adapt to the positioning requirements of different positions. Alternatively, the bracket 52 can be a plate directly welded to the frame 1. The positioning element 51 can be a mechanical limit block, a positioning pin, or a positioning rod. The positioning assembly 5 is located between the two arm bodies 411 of the movable arm 41. The cantilever design of the bracket 52 extends the positioning element 51 to the outside of the frame 1, thereby avoiding interference between the positioning assembly 5 and the movement trajectory of the arm body 411 and the stop part 42, ensuring the normal operation of the lifting device.

[0054] Please see Figure 4 As an optional embodiment of this case, the frame 1 includes two sets of guide rail structures 11, which are respectively axially symmetrically arranged on both sides of the gripping mechanism 3;

[0055] Each of the guide rail structures 11 includes a first section of guide rail 111 arranged along the height direction of the frame 1 and a second section of guide rail 112 arranged toward the gripping mechanism 3, and the movable member 45 is slidably disposed in the guide rail structure 11.

[0056] It should be noted that the first guide rail 111 extends vertically, and the second guide rail 112 extends horizontally from the end of the first guide rail towards the gripping mechanism 3. The two guide rails are continuously connected by an arc-shaped transition section. Each set of guide rail structures 11 includes a first guide rail 111 arranged along the height direction of the frame 1 and a second guide rail 112 facing the gripping mechanism 3. The two can be connected by welding, bolting, or integral molding. The first guide rail 111 is used to guide the vertical lifting movement of the movable part 45, for example, by using a T-slot guide rail in conjunction with a slider assembly; the second guide rail 112 is used to control the horizontal displacement of the movable part 45, for example, by using an L-shaped guide rail in conjunction with a roller mechanism. The movable part 45 can be a slider assembly, a roller mechanism, or a rotating shaft, as long as it can satisfy the requirement that the movable arm 41 drives the stop part 42 to move between the protected area and the avoidance area.

[0057] For example, when the movable component 45 is a rotating shaft, the rotating shaft can slide along the guide rail structure 11 and rotate around its own axis. In this scheme, the driving component 43 is a linear telescopic driving component mounted on the frame 1, such as a telescopic cylinder. The telescopic rod of the driving component 43 is arranged vertically downward. One end of the telescopic rod of the driving component 43 is hinged to the rotating shaft through a hinge rod 46, and the other end of the hinge rod 46 is also hinged to the telescopic rod. When the linear telescopic driving component 43 extends or retracts, it can drive the rotating shaft to move in the first section of the guide rail 111 and the second section of the guide rail 112 through the hinge rod 46. The rotating shaft drives the movable arm 41 to move, and the movable arm 41 carries... The movable stop 42 can move, thereby enabling the stop 42 to switch between the protected area and the avoidance area. It should be understood that, in order to prevent the stop 42 from failing during protection, a limit structure 461 can be provided on the side of the hinge rod 46 away from the stop 42. When the drive member 43 stops driving and self-locks, the position of the hinge rod 46 will be fixed. Since the movable arm 41 is hinged to the hinge rod 46, the limit structure 461 restricts the range of movement of the movable arm 41, ensuring that the stop 42 remains in the protected area after reaching the protected area and will not detach due to the downward pressure of the weight of the goods.

[0058] Please see Figure 1 and Figure 5 As an optional embodiment of this case, the gripping mechanism 3 includes a height adjustment component 31 and a gripping component 32;

[0059] The height adjustment component 31 is located at the lower part of the frame 1 and includes a power input unit 311 and a linear displacement output unit 312; the gripping component 32 is connected to the linear displacement output unit 312.

[0060] It should be noted that the height adjustment component 31 mainly provides height-adjustable structural support and power for the gripping component 32. The height adjustment component 31 needs to balance accuracy and load-bearing capacity. The power input unit 311, such as the handwheel drive, transmits torque through manual rotation and is suitable for miniaturized or low-frequency adjustment scenarios. The motor drive achieves automated control through servo motors or stepper motors and is suitable for high-precision or large-scale production lines. The hydraulic drive provides greater thrust through hydraulic cylinders and oil circuit systems and is suitable for lifting heavy modules. The specific implementation of the linear displacement output unit 312 includes a screw-nut pair (achieving linear displacement through threaded transmission), a gear and rack mechanism (driving rack movement through gear rotation), and a hydraulic cylinder (directly outputting displacement through piston rod extension and retraction). The above structures can be used independently or in combination. In the vacuum suction cup scenario, the height adjustment component 31 presses the suction cup down to fit against the top of the module and then activates the vacuum generator. At this time, the edge sealing ring of the suction cup deforms due to vertical pressure to enhance airtightness. For battery cell modules with large height deviations, the height adjustment component 31 can expand the adjustment range through multiple multi-stage telescopic structures (such as nested sleeves or folding linkages); in addition, the height adjustment component 31 can also integrate position sensors or limit switches to provide real-time feedback on displacement status to enhance control accuracy.

[0061] In this case, the gripping component 32, through the coordinated operation of the height adjustment component 31 and the gripping component 32, significantly improves the adaptability and operational accuracy of the lifting fixture for battery cell modules of different heights. The height adjustment component 31 drives the linear displacement output unit 312 through the power input unit 311, enabling the gripping component 32 to flexibly adjust to the optimal gripping position for the goods, avoiding adsorption offset or insecure clamping due to height errors. When the gripping component 32 uses the adsorption unit 321, the precise displacement control of the height adjustment component 31 ensures a tight fit between the suction cup and the module surface, reducing the risk of adsorption failure due to air pressure fluctuations or surface unevenness.

[0062] Please see Figure 1 and Figure 5 As an optional embodiment of this case, the gripping component 32 includes an adsorption unit 321 for adsorbing the top of the goods and / or a clamping unit 322 for clamping the sides of the goods.

[0063] It should be noted that the gripping component 32 can be designed to meet diverse gripping needs according to actual requirements. When the adsorption unit 321 is used, the vacuum suction cup adsorbs the surface of the battery cell module through negative pressure, which is suitable for flat or non-metallic materials; the electromagnetic suction cup adsorbs the metal surface through magnetic force, which is suitable for battery cell modules with iron shells. The layout of the adsorption unit 321 can be a single suction cup for centralized adsorption or multiple suction cups for distributed adsorption, the latter further improving stability by dispersing the force points. If the gripping component 32 uses the clamping unit 322, it can be fixed to the side through the clamping plates. The driving methods of the clamping unit 322 include manual control by a screw and rocker wheel, motor-driven synchronous belt or linkage mechanism, and pneumatic push rod for rapid response, thereby driving the two clamping plates to clamp the two sides of the goods; the gripping component 32 can be modularly designed to allow flexible replacement of the adsorption or clamping unit 322 according to the characteristics of the module. For example, in the case of fragile battery cell modules, a suction cup with a buffer layer can be selected, or in the case of irregularly shaped modules, an adaptive gripper can be selected.

[0064] Please see Figure 1 and Figure 5 As an optional embodiment of this case, the clamping unit 322 includes two sets of side clamping components, and the two sets of side clamping components are axially symmetrically arranged on the other two sides of the frame 1.

[0065] The side clamping assembly includes a first driving unit 3221 and a clamping component 3222, wherein the first driving unit 3221 is connected to the clamping component 3222 in a transmission manner.

[0066] It should be noted that the side clamping assembly can be, for example, a clamping plate driven independently by dual motors on both sides, a single cylinder controlling dual pneumatic push rods via a pressure divider valve, or a hydraulic system synchronously driving hydraulic cylinders on both sides via a flow divider valve. Furthermore, the symmetrical layout can be expanded to multiple clamping units 322 distributed along a ring or rectangle to adapt to the clamping requirements of cylindrical or irregularly shaped modules. The first drive unit 3221, as the power source for the side clamping assembly, can be implemented in various ways. For example, the electric drive unit can use a servo motor or stepper motor, achieving closed-loop control through an encoder; the pneumatic drive unit drives the cylinder piston movement via compressed air, suitable for fast-response scenarios; the hydraulic drive unit drives the hydraulic cylinder via hydraulic oil pressure, suitable for high-load conditions. Alternative solutions include manual drive (such as a handwheel with a worm gear mechanism) or electromagnetic drive (such as a linear motor directly outputting linear displacement). These solutions can be selected according to the working conditions; for example, pneumatic drive is suitable for explosion-proof environments, while electric drive is suitable for high-precision control. The clamping component 3222 is, for example, a rigid clamping plate (such as a composite structure of steel plate and epoxy board) or an adaptive clamp (such as a linkage-type multi-joint gripper). The transmission connection between the first drive unit 3221 and the clamping component 3222 adopts a mechanical structure such as a lead screw-nut pair, gear rack, or synchronous belt-pulley, which converts the input power of the drive unit into the linear motion of the clamping unit 322. For example, when the motor drives the lead screw to rotate, the nut moves along the lead screw axis and pushes the clamping unit 322 to close, thereby forming a wrap-around clamping of the module. The symmetrically arranged side clamping components in this invention can apply a balanced clamping force synchronously during the gripping process, avoiding deformation or slippage of the battery cell module due to excessive local pressure, and significantly improving the stability and safety of the handling operation.

[0067] Please see Figure 1 and Figure 5 As an optional embodiment of this case, the clamping component 3222 includes a clamping plate, and the length of the clamping plate is less than or equal to the length of the clamped surface of the goods along the length direction of the clamping plate.

[0068] It should be noted that in this case, when the clamping plate tightens the module, the module elastically contracts under lateral pressure, for example, by 1-3 mm, which precisely compensates for the misfit between the module and the battery casing. The timing and sequence of releasing the clamping force need to be coordinated with the assembly process: for example, after the lower end or bottom of the module is inserted into the battery casing, the clamping plate is slowly released to allow the module to elastically recover, thereby forming a tight contact with the inner wall of the battery casing. Subsequently, after the clamping plate is removed, the exposed cell module is pressed into the battery casing manually or by equipment. This solves the technical problem that the cell module requires interference fit but is difficult to install accurately or conveniently into the battery casing due to dimensional deviations. The large flat surface of the clamping plate fits the cell module, improving the yield rate of mass production through mechanical consistency. The interference fit between the cell module and the battery casing makes the formed battery pack less prone to shaking when the vehicle is in motion, thus ensuring the safety of the battery pack. In addition, the clamping unit 322 can integrate limit switches or position sensors to trigger the release of the clamping plate after detecting the insertion depth of the module; or it can link the clamping mechanism and the lifting device through a timing controller to ensure the continuity of the action, or it can be manually controlled, thus providing a variety of solutions.

[0069] As an optional embodiment of this case, the rack 1 includes at least one of the following structures: a rigid frame, an adjustable frame, and a modular frame;

[0070] The rigid frame is secured to its components by welding or riveting; for example, a cast aluminum alloy frame. The adjustable frame includes telescopic rods and locking bolts to adjust the structural dimensions. The telescopic rods include sleeve type (inner and outer tubes nested and sliding) and folding linkage type (hinged multi-section rods unfolding). The modular frame assembles multiple independent units through standardized interfaces. Standardized interfaces include mechanical interfaces (such as dovetail grooves, T-slots, or flanges). The specific form of the independent unit can be a gripping mechanism module 3 (integrating suction cups and clamping components), a protective mechanism module 4 (including a stop part 42 and a buffer structure), or a sensing module (such as a positioning sensor and a force feedback unit).

[0071] As an optional embodiment of this case, the goods are battery cell modules.

[0072] It should be noted that the battery cell modules have characteristics such as uneven weight distribution, fragile surfaces, and high assembly precision requirements. Traditional lifting tools, due to their general-purpose design, cannot meet their special handling needs. This invention optimizes the compatibility of the gripping module's adsorption and side clamping components, as well as the redundant protection structure of the protective mechanism 4, based on the physical characteristics of the battery cell modules (such as brittle electrodes, metal / composite material shells, and interference fit assembly requirements). This significantly improves the stability of module handling and assembly efficiency. For example, the synergistic effect of the suction cups and clamps can avoid or reduce scratches on the module surface, while the adjustable frame can match the dimensional tolerances of different module models. This not only solves the problems of module slippage, deformation, and assembly misalignment during lifting, but also ensures the high-efficiency operation and safety of the battery production line. The battery cell modules can be, for example, square, cylindrical, or pouch cell modules. The functional modules of the lifting tooling can be flexibly configured for the above types, for example, an arc-shaped clamp and distributed suction cups can be designed for cylindrical modules. The goods may also be energy storage battery modules, precision electronic devices, industrial machinery parts, medical equipment modules, aerospace components, or other goods that can be lifted by the lifting equipment in this case.

[0073] Work process:

[0074] The process of clamping the battery cell module is as follows: First, the operator manually lifts the lifting device to a position directly above the battery cell module using the lifting connection 2 (e.g., a lifting rope). Then, the positioning element 51 (e.g., a positioning pin) is inserted into the positioning lock hole of the battery cell module or pallet to ensure alignment between the lifting device and the goods. After positioning, the linear displacement output unit 312 (e.g., a Z-axis lead screw) is driven by the rotating power input unit 311 (e.g., a rocker wheel), causing the gripping component 32 (e.g., a suction cup) to descend until it is in close contact with the surface of the battery cell module, activating the adsorption function and forming a preliminary fixation. Next, the clamping unit 322 is driven by the first drive unit 3221 (e.g., a rotating rocker wheel), and the clamping plate is simultaneously subjected to clamping force from both sides via a lead screw transmission mechanism. This forces the lateral dimension of the battery cell module to shrink laterally by 2-3 mm within the elastic deformation range to accommodate the interference fit requirements of the subsequent battery casing. After clamping, the overhead crane is used to lift the lifting device, and the stop part 42 of the protective mechanism 4 is immediately released to the protective area after lifting to form redundant protection and ensure the stability and safety of the module during the lifting process.

[0075] The process of lowering the battery cell module: When the battery cell module needs to be placed in the target position (such as the battery casing or flatbed trolley), the operator manipulates the lifting rope to move the lifting device to a height of 15 cm to 30 cm above the target position, and manually releases the supporting state of the stop part 42; then, the lifting device is slowly lowered so that the lower end of the battery cell module is aligned with the battery casing inlet or the moving trolley, and longitudinal pressure is applied by the height adjustment component 31 (such as the Z-axis lead screw or hydraulic cylinder) in the gripping mechanism 3, thereby gradually pressing the module into the battery casing until the interference fit is completed. After confirming that the module is in place, the suction function of the gripping component 32 (such as the suction cup) is turned off, and the first drive unit 3221 (such as the rocker wheel) is rotated in the opposite direction to release the clamping force of the clamping plate. Finally, the lifting device is slowly lifted off the module by the lifting rope to complete the entire lifting operation. It should be understood that when the module is gradually pressed into the battery casing, it is necessary to rotate the rocker wheel in the opposite direction to release the clamping force of the clamping plate to avoid the clamping plate interfering with the module installation process. This process is generally not required when placing the module on the moving trolley.

[0076] In summary, this utility model effectively overcomes some practical problems in the prior art, thus having high utilization value and significance.

[0077] The above embodiments are merely illustrative of the principles and effects of this utility model and are not intended to limit the scope of this utility model. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.

Claims

1. A spreader tool, characterized in that, include: frame; A hoisting connection part is provided on the frame, and the hoisting connection part is used to connect with external lifting equipment; A gripping mechanism is disposed at the lower part of the hoisting connection, and the gripping mechanism is used to grip the top and / or side of the goods; The protective mechanism includes a movable arm, and the movable arm is provided with a stop. The movable arm is movably connected to the frame so that the stop can move between a protected area and a clearance area. The protected area is the area directly below the cargo being gripped by the gripping mechanism, and the clearance area is any area other than the protected area.

2. The spreader tool of claim 1, wherein, The protective mechanism is provided in two sets, and the two sets of protective mechanisms are respectively symmetrically arranged on both sides of the frame; The movable arm is driven manually or by a drive mechanism, enabling the stop to move between the protected area and the avoidance area.

3. The lifting fixture according to claim 2, characterized in that, The driving component drives the movable arm to move via the transmission component. The driving component includes a self-locking structure for locking its own output shaft. The position of the movable arm is maintained by the displacement of the transmission component driven by the driving component.

4. The lifting fixture according to claim 1, characterized in that, It also includes a positioning assembly connected to the frame, the positioning assembly including at least one positioning element that matches and positions the goods or the pallet of the goods.

5. The lifting fixture according to claim 4, characterized in that, The movable arm includes at least two arm bodies arranged in parallel and spaced apart. One end of each arm body is hinged or slidably connected to the frame via a movable component, and the other end of each arm body is connected via the stop portion.

6. The lifting fixture according to claim 5, characterized in that, The positioning assembly also includes a bracket for connecting the positioning element and the frame; The positioning component is located between the two arms of the movable arm, and the positioning element is suspended outside the frame by the bracket to avoid the movement trajectory of the two adjacent arms and the stop.

7. The lifting fixture according to claim 5, characterized in that, The frame includes two sets of guide rail structures, which are symmetrically arranged on both sides of the gripping mechanism. Each of the guide rail structures includes a first section of guide rail arranged along the height direction of the frame and a second section of guide rail arranged toward the gripping mechanism, and the movable component is slidably disposed in the guide rail structure.

8. The lifting fixture according to claim 1, characterized in that, The grasping mechanism includes: A height adjustment assembly, located at the lower part of the frame, includes a power input unit and a linear displacement output unit; The gripping component is connected to the linear displacement output unit.

9. The lifting fixture according to claim 8, characterized in that, The gripping assembly includes an adsorption unit for adsorbing the top of the cargo and / or a clamping unit for holding the sides of the cargo.

10. The lifting fixture according to claim 9, characterized in that, The clamping unit includes two sets of side clamping components, which are symmetrically arranged on the other two sides of the frame. The side clamping assembly includes a first driving unit and a clamping component, wherein the first driving unit is pulsatorically connected to the clamping component.

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