Lifting and clamping machine and lifting and clamping method for bundling power battery modules

Abstract

The present invention provides a lifting and clamping machine and a lifting and clamping method for bundling power battery modules, the lifting and clamping machine for bundling power battery modules includes a lifting and clamping mechanism, the lifting and clamping mechanism includes a lifting component mounting frame, a lifting mechanism and a module clamping mechanism, the module clamping mechanism is connected to the lifting component mounting frame through the lifting mechanism, and also includes a special machine stand and a module conveying line, the lifting component mounting frame is movably connected to the special machine stand, and the module conveying line is connected to the lifting component mounting frame, wherein when the power battery module flows into the module conveying line, the lifting mechanism drives the module clamping mechanism to rise from the middle of the module conveying line and clamp the power battery module located on the module conveying line. The present invention integrates the nesting design of the lifting mechanism, the module clamping mechanism and the module conveying line, has the functions of clamping, lifting and lowering the power battery module at the same time, and moving with the process, and drives the clamped power battery module to enter the next process.

Description

Technical Field

[0001] The present invention relates to the technical field of power battery module production, and in particular to a special lifting and clamping machine for bundling power battery modules for mass production. The present invention also relates to a lifting and clamping method for power battery modules. Background Art

[0002] With the continuous development of science and technology, new energy vehicles have become the mainstream sales vehicles, and lithium battery modules have become the core and important structural components of new energy vehicles. Due to the high energy demand of electric power new energy vehicles, a single battery cell cannot meet it, so multiple batteries are needed to form a module, and then form a PACK package. The module composed of multiple batteries requires multiple processes. With the rapid development of my country's new energy industry, there are higher requirements for the bundling efficiency and consistency of bundling force of power battery modules. The traditional battery module clamping mechanism has low compatibility, inaccurate clamping force and clamping displacement, and can no longer meet the process requirements of automotive-grade equipment. Summary of the invention

[0003] The purpose of the present invention is to provide a special lifting and clamping machine for bundling power battery modules, which can realize the functions of clamping, lifting and lowering the power battery modules at the same time, and moving with the process.

[0004] In order to achieve the above-mentioned purpose, the present invention provides a special lifting and clamping machine for bundling power battery modules, including a lifting and clamping mechanism, which includes a lifting component mounting frame, a lifting mechanism and a module clamping mechanism, and the module clamping mechanism is connected to the lifting component mounting frame through the lifting mechanism, and also includes a special machine stand and a module conveying line, the lifting component mounting frame is movably connected to the special machine stand, and the module conveying line is connected to the lifting component mounting frame, wherein, when the power battery module flows into the module conveying line, the lifting mechanism drives the module clamping mechanism to rise from the middle of the module conveying line and clamp the power battery module located on the module conveying line.

[0005] In one embodiment of the above-mentioned special lifting and clamping machine for bundling power battery modules, the module conveyor line includes a first side frame, a second side frame and a conveying roller, the first side frame and the second side frame extend along the layout direction of the special machine stand, and the conveying roller is connected between the first side frame and the second side frame.

[0006] In one embodiment of the above-mentioned lifting and clamping machine for bundling power battery modules, the conveying roller includes a first notch and a second notch corresponding to the module clamping mechanism, and the lifting mechanism drives the module clamping mechanism to extend from the first notch and the second notch.

[0007] In one embodiment of the above-mentioned lifting and clamping machine for bundling power battery modules, the lifting mechanism includes a lifting servo motor and a screw lifter, and the lifting servo motor drives the screw lifter to drive the module clamping mechanism to lift and lower.

[0008] In one embodiment of the above-mentioned lifting and clamping machine for bundling power battery modules, the lifting assembly mounting frame includes a base frame and a lifting guide rod assembly connected to the base frame, there are multiple lifting guide rod assemblies, and the lifting mechanism has guide holes corresponding to the lifting guide rod assemblies.

[0009] In one embodiment of the above-mentioned lifting and clamping machine for bundling power battery modules, the module clamping mechanism includes two side clamping assemblies arranged opposite to each other, and the side clamping assemblies include a pressing head and a clamping servo motor for driving the pressing head to move.

[0010] In one embodiment of the above-mentioned lifting and clamping machine for bundling power battery modules, the pressing head member includes a pressing head mounting block and a clamping pressing head, the clamping pressing head is connected to one end of the corresponding power battery module of the pressing head mounting block, and the pressing head mounting block is movably connected to the lifting mechanism.

[0011] In one embodiment of the above-mentioned lifting and clamping machine for bundling power battery modules, the clamping head includes a head fixing plate, a pressure plate, a spring member and a pressure sensor. The head fixing plate and the pressure plate are arranged in parallel. The spring member and the pressure sensor are connected between the head fixing plate and the pressure plate. The pressure plate is arranged corresponding to the power battery module.

[0012] The lifting and clamping method of the power battery module of the present invention is performed by using the above-mentioned lifting and clamping machine for bundling the power battery module, and comprises the following steps:

[0013] S100, the power battery module flows into the module conveyor line and stops;

[0014] S200, the lifting mechanism drives the module clamping mechanism to rise from the middle of the module conveying line;

[0015] S300, the module clamping mechanism clamps the left and right sides of the power battery module according to a predetermined clamping force and clamping displacement stroke. After clamping in place, the clamping force and clamping displacement stroke data are uploaded.

[0016] In one embodiment of the above-mentioned method for lifting and clamping the power battery module, the lifting assembly mounting frame drives the lifting mechanism, module clamping mechanism, module conveyor line and the power battery module in the clamped state connected thereto to move along the dedicated machine frame to realize the process flow between different workstations.

[0017] The beneficial effect of the present invention is that the special lifting and clamping machine and the lifting and clamping method for bundling power battery modules of the present invention integrate the lifting mechanism, the module clamping mechanism and the nested design of the module conveyor line, and are designed as a left-right movable structure to drive the power battery module in the clamped state to enter the next process.

[0018] The present invention realizes fully automated production during battery module clamping, can greatly improve module bundling efficiency, improve module bundling force consistency, realize force control and size control of power battery modules, is compatible with multiple varieties of batteries, and the clamping process data is traceable.

[0019] The present invention is described in detail below with reference to the accompanying drawings and specific embodiments, but is not intended to limit the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a three-dimensional structural diagram of an embodiment of a lifting and clamping machine for bundling power battery modules of the present invention;

[0021] Figure 2 It is a three-dimensional structural diagram of an embodiment of the lifting and clamping mechanism of the lifting and clamping machine for bundling power battery modules of the present invention;

[0022] Figure 3 It is a three-dimensional structural diagram of an embodiment of a module conveying line of a special lifting and clamping machine for bundling power battery modules of the present invention;

[0023] Figure 4 It is a three-dimensional structural diagram of an embodiment of a special machine stand of a special lifting and clamping machine for bundling power battery modules of the present invention;

[0024] Figure 5 It is a three-dimensional structural diagram of an embodiment of a jacking assembly mounting frame of a jacking and clamping machine for bundling power battery modules of the present invention;

[0025] Figure 6 It is a three-dimensional structural diagram of an embodiment of the lifting mechanism of the lifting and clamping machine for bundling power battery modules of the present invention;

[0026] Figure 7 It is a three-dimensional structural diagram of an embodiment of the side clamping assembly of the lifting and clamping machine for bundling power battery modules of the present invention;

[0027] Figure 8 It is a three-dimensional structural diagram of an embodiment of a compression head of a special lifting and clamping machine for bundling power battery modules of the present invention.

[0028] Among them, the reference numerals

[0029] 100: Special machine stand

[0030] 110: Special machine welding frame

[0031] 120: Guide rail slider assembly

[0032] 130: Rack

[0033] 200: Lifting and clamping mechanism

[0034] 210: Lifting assembly mounting frame

[0035] 211: Chassis

[0036] 212: Guide rod support seat

[0037] 213: Lifting guide rod

[0038] 214: Linear bearings

[0039] 215: Guide rod mounting block

[0040] 216: Servo motor

[0041] 217: Gear

[0042] 220: Lifting mechanism

[0043] 220S: Guide hole

[0044] 221: Lifting servo motor

[0045] 222: Screw lift

[0046] 223: Coupling

[0047] 224: Connecting shaft

[0048] 225: Lifting frame

[0049] 226: Lifting support plate

[0050] 230: Module clamping mechanism

[0051] 230A, 230B: Side clamping assembly

[0052] 231: Clamping servo motor

[0053] 232: Pressure head

[0054] 2321: Pressure head mounting block

[0055] 2322: Press the pressure head

[0056] 2323: Guide rail slider

[0057] 23221: Press head fixing plate

[0058] 23222: Linear bearings

[0059] 23223: Guide shaft

[0060] 23224: Spring

[0061] 23225: Pressure Sensor

[0062] 23226: Pressure plate

[0063] 300: Module conveyor line

[0064] 310: First side frame

[0065] 320: Second side frame

[0066] 330: conveyor roller

[0067] 331: The first gap

[0068] 332: Second gap

[0069] 340: Conveyor line legs

[0070] 400: Power battery module DETAILED DESCRIPTION

[0071] The technical solution of the present invention is described in detail below in conjunction with the accompanying drawings and specific embodiments to further understand the purpose, solution and effect of the present invention, but it is not intended to limit the scope of protection of the claims attached to the present invention.

[0072] The lifting and clamping machine for bundling power battery modules of the present invention is mainly used for clamping control of groups of single cells, which is convenient for subsequent module bundling operations. Figures 1 to 3 As shown, the lifting and clamping machine for bundling power battery modules of the present invention comprises a special machine stand 100, a lifting and clamping mechanism 200 and a module conveyor line 300, wherein the lifting and clamping mechanism 200 is connected to the special machine stand 100, and the module conveyor line 300 is connected to the lifting and clamping mechanism 200. When the power battery module 400 flows into the module conveyor line 300, the lifting and clamping mechanism 200 rises from the middle of the module conveyor line 300 and clamps the power battery module 400 placed on the module conveyor line 300.

[0073] Combination Figure 1 and Figure 2The lifting and clamping mechanism 200 includes a lifting component mounting frame 210, a lifting mechanism 220 and a module clamping mechanism 230, wherein the module clamping mechanism 230 is connected to the lifting component mounting frame 210 through the lifting mechanism 220. The lifting component mounting frame 210 is movably connected to the special machine stand 100, and the module conveyor line 300 is connected to the lifting component mounting frame 210, wherein the lifting component mounting frame 210 is movably connected to the special machine stand 100 along the layout direction of the special machine stand 100. The lifting mechanism 220 drives the module clamping mechanism 230 to rise from the middle of the module conveyor line 300 and clamp the power battery module 400.

[0074] The present invention realizes reliable transfer of the power battery module 400 between two workstations of the special machine stand 100 in a clamped state. Specifically, the jacking assembly mounting frame 210 drives the lifting mechanism 220, the module clamping mechanism 230, the module conveyor line 300 and the power battery module 400 in a clamped state connected thereto to move along the layout direction of the special machine stand 100 to realize the process flow between different workstations. Figure 1 As shown, the lifting assembly mounting frame 210 is moved to the right side so that the clamped power battery module 400 can enter the subsequent operation process such as module bundling.

[0075] In addition, the lifting mechanism 220 and the module clamping mechanism 230 both use servo mechanisms, and the process data collection and tracing is extremely convenient. The present invention has powerful functions such as module lifting, module clamping, module movement, and easy data tracing, supports multi-function reuse, and can achieve multiple uses of one machine. At the same time, the present invention has typical technical characteristics such as high integration, good compatibility, easy to realize automation and intelligence, and high production efficiency, which can truly achieve the purpose of "machine replacement".

[0076] Combination Figure 1 and Figure 3 The module conveyor line 300 includes a first side frame 310, a second side frame 320 and a conveying roller 330. The first side frame 310 and the second side frame 320 extend along the layout direction of the special machine stand 100, and the conveying roller 330 is connected between the first side frame 310 and the second side frame 320. The extension direction of the module conveyor line 300 is the same as the extension direction of the special machine stand 100.

[0077] Furthermore, the conveying roller 330 includes a first notch 331 and a second notch 332 corresponding to the die clamping mechanism 230 , and the lifting mechanism 320 drives the die clamping mechanism 230 to extend out of the first notch 331 and the second notch 332 of the conveying roller 330 .

[0078] The module conveyor line 300 also includes a conveyor line support leg 340 , which supports the first side frame 310 , the second side frame 320 and the conveying roller 330 thereon, and the conveyor line support leg 340 is connected to the jacking component mounting frame 210 of the jacking clamping mechanism 200 .

[0079] Before the power battery module 400 flows into the conveying roller 330 of the module conveying line 300, the lifting mechanism 220 together with the module clamping mechanism 230 is located below the conveying roller 330 of the roller conveying line 300. When the power battery module 400 flows onto the conveying roller 330 of the module conveying line 300, the lifting mechanism 220 drives the module clamping mechanism 230 to rise, and extends from the first notch 331 and the second notch 332 and corresponds to the two sides of the power battery module 400, and the module clamping mechanism 230 operates to clamp the power battery module 400 located on the conveying roller 330.

[0080] In the present invention, the lifting and clamping mechanism 200 and the module conveying line 300 are driven by a servo motor, a gear rack assembly, and a linear guide assembly. Figure 4 As shown, the special machine stand 100 includes a special machine welding frame 110, a guide rail slider assembly 120 and a rack 130, the guide rail slider assembly 120 is respectively fixed on the special machine welding frame 110, and the rack 130 is fixed on the special machine welding frame 110.

[0081] like Figure 5 As shown, the lifting assembly mounting frame 210 includes a base frame 211 and a lifting guide rod assembly connected to the base frame 211, there are multiple lifting guide rod assemblies, and the lifting mechanism 220 has guide holes corresponding to the lifting guide rod assemblies.

[0082] In detail, the lifting guide rod assembly includes a guide rod support seat 212, a lifting guide rod 213, a linear bearing 214 and a guide rod mounting block 215. The lifting assembly mounting frame 211 is fixed on the guide rail slider assembly 120 of the special machine stand 100, the guide rod support seat 212 is mounted on the lifting assembly mounting frame 211, the lifting guide rod 213 is mounted on the guide rod support seat 212, the linear bearing 214 is mounted on the lifting guide rod 213, and the guide rod mounting block 215 is mounted on the lifting guide rod 213. The number of lifting guide rod assemblies is not limited. In this embodiment, it is set to four, which are used for guiding when the lifting mechanism 220 is lifted. Correspondingly, the lifting mechanism 220 has four guide holes 220S corresponding to the lifting guide rod assemblies.

[0083] The lifting assembly mounting frame 210 further includes a servo motor 216 and a gear 217. The servo motor 216 is mounted on the base frame 211. The gear 217 is mounted on the servo motor 216 and meshes with the rack 130 of the special machine stand 100. The servo motor 216 drives the gear 217 to rotate, and the gear 217 meshes with the rack 130 to drive the lifting assembly mounting frame 210 and the lifting mechanism 220, the module clamping mechanism 230, the module conveyor line 300 and the power battery module 400 in the clamped state connected thereto to move along the layout direction of the special machine stand 100.

[0084] like Figure 6 As shown, the lifting mechanism 220 includes a lifting servo motor 221 and a screw lifter 222 . The lifting servo motor 221 drives the screw lifter 222 to drive the module clamping mechanism 230 to move up and down.

[0085] The lifting mechanism 220 also includes a coupling 223, a connecting shaft 224, a lifting frame 225 and a lifting support plate 226, wherein the lifting servo motor 221 is fixed on the base frame 211, the spiral lifter 222 is fixed on the base frame 211, the coupling 223 is installed on the spiral lifter 222, the connecting shaft 224 is fixed on the coupling 223, the lifting frame 225 is installed on the nut of the spiral lifter 222, and the lifting support plate 226 is installed on the bearing at the top of the screw of the spiral lifter 222.

[0086] like Figure 1 , Figure 2 and Figure 7 As shown, the module clamping mechanism 230 includes two side clamping assemblies 230A and 230B, and the side clamping assemblies 230A and 230B are arranged opposite to each other. When the lifting mechanism 220 drives the module clamping mechanism 230 to rise, the side clamping assemblies 230A and 230B extend from the first notch 331 and the second notch 332 of the module conveying line 300 respectively and correspond to the two sides of the power battery module 400, and the side clamping assemblies 230A and 230B clamp the power battery module 400.

[0087] The side clamping assembly 230A and the side clamping assembly 230B are two symmetrically arranged components with the same structure. Taking the side clamping assembly 230B as an example, in detail, the side clamping assembly 230B includes a clamping servo motor 231 and a pressing head 232, and the clamping servo motor 231 drives the pressing head 232 to move. That is, the clamping drive motor of the side clamping assembly 230A drives the pressing head to move to the right, and the clamping drive motor of the side clamping assembly 230B drives the pressing head to move to the left, so as to clamp the power battery module 400 located between the side clamping assembly 230A and the side clamping assembly 230B.

[0088] Furthermore, the pressing head member 232 includes a pressing head mounting block 2321 and a clamping pressing head 2322, the clamping pressing head 2322 is connected to one end of the pressing head mounting block 2321 corresponding to the power battery module 400, the pressing head mounting block 2321 is slidably connected to the lifting frame 225 of the lifting mechanism 220 through the guide rail slider 2323, and the clamping servo motor 231 is fixed to the lifting frame 225 of the lifting mechanism 220. When the clamping servo motor 231 is actuated, it drives the pressing head mounting block 2321 to slide and move on the lifting frame 225, and the clamping pressing head 2322 moves toward or separates from the power battery module 400 along with the pressing head mounting block 2321.

[0089] Combination Figure 8 The clamping head 2322 includes a head fixing plate 23221, a linear bearing 23222, a guide shaft 23223, a spring 23224, a pressure sensor 23225 and a pressing plate 23226. The head fixing plate 23221 is fixed on the head mounting block 2321, the linear bearing 23222 is mounted on the head fixing plate 23221, the guide shaft 23223 is mounted on the linear bearing 23222, the spring 23224 is mounted on the guide shaft 23223, the pressure sensor 23225 is mounted on the head fixing plate 23221, and the pressing plate 23226 is mounted on the guide shaft 23223. The pressure sensor 23225 is provided to sense the magnitude of the clamping force, and the spring 23224 is provided to enable the pressing plate 23226 to have a certain buffer force, and reset at the end of the clamping process.

[0090] The present invention is used for the clamping process before bundling the power battery module. It adopts a modular structural design, integrates roller conveying positioning, lateral translation of the mechanism, worm gear servo lifting and lowering, and bidirectional servo clamping to achieve automatic clamping of the module, and supports online and offline use. The servo motor drives the meshing of the rack and pinion to achieve reliable transmission of the power battery module between the two stations of the special machine stand in a clamped state. The lifting mechanism of the jacking clamping mechanism is driven by a servo motor and a double-linked spiral lifter assembly, which can lift the module clamping mechanism to a specific height. The module clamping mechanism is driven by a servo electric cylinder, which can match power battery modules of different specifications, and can perform torque control and displacement control during clamping. The patented equipment of the present invention has the process characteristics of full automation, good flexibility, and high precision, and realizes the force control, size control, and process data traceability of the power battery module.

[0091] In summary, the lifting and clamping method of the power battery module of the present invention comprises the following steps:

[0092] S100, the power battery module flows into the module conveyor line and stops;

[0093] S200, the lifting mechanism drives the module clamping mechanism to rise from the middle of the module conveying line;

[0094] S300, the module clamping mechanism clamps the left and right sides of the power battery module according to a predetermined clamping force and clamping displacement stroke. After clamping in place, the clamping force and clamping displacement stroke data are uploaded.

[0095] Among them, the jacking component mounting frame drives the lifting mechanism, module clamping mechanism, module conveyor line and the power battery module in the clamped state connected thereon to move along the special machine stand to realize the process flow between different workstations.

[0096] Of course, the present invention may have many other embodiments. Without departing from the spirit and essence of the present invention, those skilled in the art may make various corresponding changes and modifications based on the present invention, but these corresponding changes and modifications should all fall within the scope of protection of the claims attached to the present invention.

Claims

1. A lifting and clamping machine for bundling power battery modules, comprising a lifting and clamping mechanism, the lifting and clamping mechanism comprising a lifting component mounting frame, a lifting mechanism and a module clamping mechanism, the module clamping mechanism is connected to the lifting component mounting frame through the lifting mechanism, characterized in that: Also includes: A special machine stand, on which the jacking assembly mounting frame is movably connected; as well as A module conveyor line is connected to the jacking assembly mounting frame, the module conveyor line comprises a first side frame body, a second side frame body and a conveyor roller, and the conveyor roller comprises a first notch and a second notch corresponding to the module clamping mechanism; When the power battery module flows into the module conveying line, the lifting mechanism drives the module clamping mechanism to extend from the first notch and the second notch and clamp the power battery module on the module conveying line.

2. The lifting and clamping machine for bundling power battery modules according to claim 1 is characterized in that: The first side frame and the second side frame extend along the layout direction of the special machine stand, and the conveying roller is connected between the first side frame and the second side frame.

3. The lifting and clamping machine for bundling power battery modules according to claim 1 is characterized in that: The lifting mechanism includes a lifting servo motor and a spiral lifter. The lifting servo motor drives the spiral lifter to drive the module clamping mechanism to lift and lower.

4. The lifting and clamping machine for bundling power battery modules according to claim 1 is characterized in that: The jacking assembly mounting frame comprises a base frame and a lifting guide rod assembly connected to the base frame, the lifting guide rod assembly is multiple, and the lifting mechanism has guide holes corresponding to the lifting guide rod assemblies.

5. The lifting and clamping machine for bundling power battery modules according to claim 1 is characterized in that: The die set clamping mechanism comprises two side clamping assemblies arranged opposite to each other, and the side clamping assemblies comprise a pressing head and a clamping servo motor for driving the pressing head to move.

6. The lifting and clamping machine for bundling power battery modules according to claim 5 is characterized in that: The pressing head member includes a pressing head mounting block and a pressing head. The pressing head is connected to one end of the pressing head mounting block corresponding to the power battery module. The pressing head mounting block is movably connected to the lifting mechanism.

7. The lifting and clamping machine for bundling power battery modules according to claim 6 is characterized in that: The pressing head includes a pressure head fixing plate, a pressure plate, a spring member and a pressure sensor. The pressure head fixing plate and the pressure plate are arranged in parallel. The spring member and the pressure sensor are connected between the pressure head fixing plate and the pressure plate. The pressure plate is arranged corresponding to the power battery module.

8. A lifting and clamping method for a power battery module, characterized in that: The method is carried out using the lifting and clamping machine for bundling power battery modules as claimed in any one of claims 1 to 7, comprising the following steps: S100, the power battery module flows into the module conveyor line and stops; S200, the lifting mechanism drives the module clamping mechanism to extend out from the first notch and the second notch; S300, the module clamping mechanism clamps the left and right sides of the power battery module according to a predetermined clamping force and clamping displacement stroke. After clamping in place, the clamping force and clamping displacement stroke data are uploaded.

9. The lifting and clamping method of a power battery module according to claim 8, characterized in that: The jacking assembly mounting frame drives the lifting mechanism, module clamping mechanism, module conveyor line and the power battery module in the clamped state connected thereto to move along the dedicated machine stand to realize the process flow between different workstations.

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