Automobile battery pack packaging shell machining equipment and method

Abstract

The invention relates to automobile battery pack packaging shell machining equipment and method, and belongs to the technical field of automobile battery pack production, the automobile battery pack packaging shell machining equipment comprises a rack, a feeding mechanism, a punch forming mechanism, an edge cutting mechanism, a polishing mechanism, a detecting mechanism and a discharging mechanism are sequentially arranged on the rack, and all the mechanisms are connected through a conveying mechanism; the feeding mechanism is used for conveying the plate on the material roll placing shaft to the punch forming mechanism; the punch forming mechanism can carry out punch forming on the plate; the edge cutting mechanism is used for cutting edges of the plates; the polishing mechanism is used for polishing the trimmed plate; the detection mechanism is used for carrying out visual detection and size detection on the trimmed and polished plate; the stamping die has the beneficial effects that the stamping forming precision is improved, and the quality of the edge and the surface of the shell is guaranteed.

Description

Technical Field

[0001] This invention belongs to the field of automotive battery pack manufacturing technology, and specifically relates to an automotive battery pack packaging shell processing equipment and method. Background Technology

[0002] With the rapid development of new energy vehicles, the demand for automotive battery packs is increasing. As a crucial component protecting the battery pack, the processing quality of the battery pack casing directly affects the performance and safety of the battery pack. Currently, the processing of automotive battery pack casings is mostly done manually or with semi-automated equipment, resulting in low processing efficiency, unstable product quality, and high labor costs.

[0003] In terms of processing precision, traditional processing equipment, lacking precise positioning and control methods, struggles to guarantee the dimensional and shape accuracy of the casing. This results in some casings failing to perfectly match the battery pack, affecting its installation and use. Furthermore, different automotive battery pack models have varying casing sizes and shapes. Existing processing equipment typically only processes casings for specific models. Changing the processing model requires extensive adjustments to the equipment and replacement of components, making the process cumbersome, time-consuming, and lacking adaptability, thus failing to meet diverse production needs.

[0004] From an environmental perspective, some traditional processing techniques generate large amounts of dust, noise, and other pollutants, adversely affecting the working environment and the health of operators, and failing to meet the environmental protection requirements of modern industrial production. Furthermore, the identification and rejection of substandard products during processing largely relies on manual judgment, which is not only inefficient but also prone to misjudgment, leading to substandard products flowing into subsequent processes and affecting the quality of the final product.

[0005] In addition, the existing processing equipment has a low level of intelligence and cannot monitor and adjust various parameters in real time during the processing. When the equipment malfunctions or the processing parameters deviate from the set values, it cannot issue an alarm and handle the situation in time, which can easily lead to a large amount of waste and increase production costs. Summary of the Invention

[0006] This invention provides a processing equipment and method for automotive battery pack packaging shells, addressing the technical problem of low processing quality in existing automotive battery pack packaging shells. In the stamping forming mechanism, the upper die is equipped with positioning pins, and the lower die is equipped with positioning holes. The cooperation of the positioning pins and holes enables precise positioning of the sheet metal, improving the accuracy of stamping. A trimming mechanism cuts the edges of the shell to remove excess material. During trimming, a trimming hydraulic cylinder drives the upper cutter downwards, cooperating with the lower cutter to complete the cutting action. The trimmed shell edges are more regular, preparing for subsequent grinding processes. The trimmed shell is then conveyed to a grinding mechanism, where a grinding drive device drives a grinding wheel to rotate, grinding the edges and surface of the shell to make them smooth and flat. The trimmed shell is first coarsely ground by a coarse grinding wheel to remove burrs and protrusions from the edges and surface, ensuring the quality of the shell edges and surface.

[0007] To achieve the above objectives, the present invention is implemented through the following technical solution:

[0008] An automotive battery pack packaging casing processing equipment, comprising:

[0009] The frame is equipped with a feeding mechanism, a stamping mechanism, a trimming mechanism, a grinding mechanism, an inspection mechanism, and a blanking mechanism, which are connected to each other by a conveying mechanism.

[0010] The feeding mechanism includes a feeding frame, a material roll placement shaft and a feeding roller assembly mounted on the feeding frame. The feeding roller assembly is used to transport the sheet metal on the material roll placement shaft to the stamping mechanism.

[0011] The stamping forming mechanism includes a stamping frame, an upper die and a lower die set on the stamping frame, and the upper die and the lower die cooperate to achieve stamping forming of sheet metal;

[0012] The trimming mechanism includes a trimming frame, a cutter mounted on the trimming frame, and a trimming drive device for driving the cutter.

[0013] The grinding mechanism includes a grinding frame, a grinding wheel mounted on the grinding frame, and a grinding drive device for driving the grinding wheel to rotate;

[0014] The testing facility includes a testing frame, a visual inspection device mounted on the testing frame, and a dimensional inspection device.

[0015] The unloading mechanism includes an unloading frame, a robotic arm mounted on the unloading frame, and an unloading conveyor belt;

[0016] The upper and lower dies work together to stamp the sheet metal, and the cutter cuts the edges of the stamped sheet metal to produce the car battery pack packaging shell.

[0017] Optionally, the feeding roller assembly includes a drive roller and a driven roller. The drive roller is driven to rotate by a feeding drive motor, and the driven roller cooperates with the drive roller to clamp the sheet metal.

[0018] Optionally, the upper die is connected to the stamping frame via a stamping hydraulic cylinder, which is fixed on the stamping frame. The stamping hydraulic cylinder drives the upper die to move up and down. The lower die is fixed on the stamping frame. The lower die is provided with a positioning pin, and the upper die is provided with a positioning hole. The upper die and the lower die are engaged and fitted together through the positioning pin of the upper die and the positioning hole of the lower die.

[0019] Optionally, the cutter includes an upper cutter and a lower cutter, and the edge-cutting drive device is an edge-cutting hydraulic cylinder. The upper cutter moves up and down by being driven by the edge-cutting hydraulic cylinder, which is fixed on the edge-cutting frame, and the lower cutter is fixed on the edge-cutting frame.

[0020] Optionally, the grinding wheels include coarse grinding wheels and fine grinding wheels. Both coarse grinding wheels and fine grinding wheels are driven to rotate by a grinding drive device, which is a grinding drive motor. The cut plate is then ground by the coarse grinding wheel and the fine grinding wheel in sequence.

[0021] Optionally, the vision inspection device includes an industrial camera and an image processing system for image inspection of the polished sheet material; the size inspection device is a laser rangefinder sensor for sensing and inspection of the polished sheet material.

[0022] A method for processing an automotive battery pack casing includes the following steps:

[0023] Step a: Feeding: The sheet material is installed on the material roll placement shaft of the feeding mechanism, and the sheet material is conveyed to the stamping and forming mechanism through the feeding roller group;

[0024] Step b: Stamping: The upper die of the stamping mechanism moves downward under the drive of the stamping hydraulic cylinder, and cooperates with the lower die to stamp the sheet metal to form the preliminary shape of the automotive battery pack packaging shell;

[0025] Step c: Edge trimming: The stamped shell is conveyed to the edge trimming mechanism. The edge trimming drive device drives the cutter to cut the edge of the shell and remove excess material from the edge of the shell.

[0026] Step d: Grinding: The cut-edge shell is conveyed to the grinding mechanism. The grinding drive device drives the grinding wheel to rotate, grinding the edges and surface of the shell to make it smooth and flat.

[0027] Step e: Inspection: The polished shell is transported to the inspection mechanism, where a visual inspection device inspects its appearance and a dimensional inspection device inspects its dimensions.

[0028] Step f: Unloading: For qualified shells, the unloading mechanism's robotic arm grabs the shells onto the unloading conveyor belt and transports them to the next process; for unqualified shells, they are rejected.

[0029] Optionally, in step a, the feeding speed of the feeding roller assembly is matched with the processing speed of the subsequent mechanisms.

[0030] Optionally, in step b, during the stamping process, the sheet metal is precisely positioned by the cooperation of the positioning pin and the positioning hole.

[0031] Optionally, in step d, the shell after edge trimming is first coarsely ground with a coarse grinding wheel, and then finely ground with a fine grinding wheel.

[0032] The beneficial effects of this invention are:

[0033] 1. This invention automates the process of automotive battery pack packaging shell from raw material feeding to finished product unloading by sequentially arranging a feeding mechanism, a stamping mechanism, a trimming mechanism, a grinding mechanism, a testing mechanism, and a unloading mechanism on a frame, and connecting these mechanisms through a conveying mechanism. This reduces manual intervention and improves processing efficiency.

[0034] 2. In the stamping forming mechanism of the present invention, the upper die is provided with a positioning post and the lower die is provided with a positioning hole. The cooperation of the positioning post and the positioning hole can realize the precise positioning of the sheet metal and improve the accuracy of stamping forming. The edge of the shell is cut by the edge trimming mechanism to remove excess material from the edge of the shell. During edge trimming, the edge trimming hydraulic cylinder drives the upper cutter to move downward and cooperates with the lower cutter to complete the cutting action. The edge of the shell after trimming is more regular, which prepares it for the subsequent grinding process. The shell after edge trimming is transported to the grinding mechanism. The grinding drive device drives the grinding wheel to rotate and grind the edge and surface of the shell to make it smooth and flat. The shell after edge trimming is first rough ground by the coarse grinding wheel to remove burrs, protrusions, etc. on the edge and surface, ensuring the quality of the edge and surface of the shell.

[0035] 3. The entire processing is highly automated, which reduces labor costs. At the same time, the coordinated operation of various mechanisms makes the processing more continuous and stable, which is conducive to large-scale production. Attached Figure Description

[0036] To more clearly illustrate the technical solutions in the embodiments of the present invention 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 the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0037] Figure 1This is a schematic diagram of the device structure of the present invention;

[0038] Figure 2 This is a flowchart of the process of the present invention. Detailed Implementation

[0039] The embodiments of this application will now be described in detail with reference to the accompanying drawings.

[0040] In the description of this application, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0041] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0042] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to welding, bolting, or riveting; they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0043] Example 1

[0044] like Figure 1 As shown, this embodiment provides an automotive battery pack packaging shell processing equipment, including:

[0045] The frame is equipped with a feeding mechanism, a stamping mechanism, a trimming mechanism, a grinding mechanism, a testing mechanism, and a blanking mechanism. The mechanisms are connected by a conveying mechanism. Through the coordinated work of the mechanisms, the automated processing of the automotive battery pack packaging shell is achieved.

[0046] The feeding mechanism includes a feeding frame, a material roll placement shaft mounted on the feeding frame, and a feeding roller assembly. The feeding roller assembly is used to transport the sheet metal on the material roll placement shaft to the stamping and forming mechanism. It can ensure the stability and continuity of sheet metal conveying, and the feeding speed can be controlled by adjusting the speed of the feeding drive motor.

[0047] The stamping forming mechanism includes a stamping frame, an upper die and a lower die set on the stamping frame, and the upper die and the lower die cooperate to achieve stamping forming of sheet metal;

[0048] The trimming mechanism includes a trimming frame, a cutter mounted on the trimming frame, and a trimming drive device for driving the cutter.

[0049] The grinding mechanism includes a grinding frame, a grinding wheel mounted on the grinding frame, and a grinding drive device for driving the grinding wheel to rotate;

[0050] The testing facility includes a testing frame, a visual inspection device mounted on the testing frame, and a dimensional inspection device.

[0051] The unloading mechanism includes an unloading frame, a robotic arm mounted on the unloading frame, and an unloading conveyor belt;

[0052] The upper and lower dies work together to stamp the sheet metal, and the cutter cuts the edges of the stamped sheet metal to produce the car battery pack packaging shell.

[0053] The feeding roller assembly includes a drive roller and a driven roller. The drive roller is driven to rotate by a feeding drive motor, and the driven roller cooperates with the drive roller to clamp the sheet metal.

[0054] The upper die is connected to the stamping frame via a hydraulic cylinder, which is fixed to the stamping frame. The hydraulic cylinder drives the upper die to move up and down. The lower die is fixed to the stamping frame and has positioning pins on it. The upper die has positioning holes. The positioning pins on the upper die and the positioning holes on the lower die enable the upper and lower dies to close together. Specifically, the positioning pins on the lower die and the positioning holes on the upper die enable the upper and lower dies to close together. During the stamping process, the hydraulic cylinder drives the upper die to move downwards and close with the lower die, stamping the sheet metal to form the preliminary shape of the automotive battery pack casing. The cooperation of the positioning pins and positioning holes ensures the precise positioning of the upper and lower dies, improving the accuracy of the stamping process.

[0055] The cutter includes an upper cutter and a lower cutter. The edge-cutting drive device is an edge-cutting hydraulic cylinder. The upper cutter moves up and down as driven by the edge-cutting hydraulic cylinder, which is fixed to the edge-cutting frame. The lower cutter is also fixed to the edge-cutting frame. When the stamped sheet is conveyed to the edge-cutting mechanism, the edge-cutting hydraulic cylinder drives the upper cutter to move downward, cooperating with the lower cutter to cut the edge of the shell and remove excess material.

[0056] The grinding wheels include coarse grinding wheels and fine grinding wheels. Both wheels are driven to rotate by a grinding drive device, which is a grinding drive motor. The cut sheet material is then ground sequentially by the coarse and fine grinding wheels. The coarse grinding wheel quickly removes rough parts from the edges and surface of the casing, while the fine grinding wheel further polishes it, making it smoother and flatter, thus improving the surface quality of the casing.

[0057] The visual inspection device includes an industrial camera and an image processing system, used for image inspection of the polished sheet metal, and can detect whether there are appearance defects such as scratches, dents and deformations on the surface of the shell; the size inspection device is a laser range sensor, used to sense and detect the polished sheet metal, such as length, width and height, to ensure that the dimensions of the shell meet the design requirements.

[0058] For the unloading mechanism: Qualified casings are picked up by the robotic arm and placed onto the unloading conveyor belt for transport to the next process; unqualified casings are picked up by the robotic arm and moved to a designated waste area for rejection. The robotic arm's movements are precise and efficient, enabling rapid unloading and sorting of casings.

[0059] A conveying mechanism is installed between various mechanisms to transport sheet metal or processed casings from one mechanism to the next. Conveying mechanisms can take the form of conveyor belts, conveyor rollers, etc., and their conveying speed is matched to the processing speed of each mechanism to ensure the continuity and stability of production.

[0060] Example 2

[0061] Based on Example 1, such as Figure 2 As shown, this embodiment provides a method for processing an automotive battery pack packaging shell, including the following steps:

[0062] Step a: Feeding: The sheet material is mounted on the material roll placement shaft of the feeding mechanism, and the sheet is conveyed to the stamping and forming mechanism by the feeding roller assembly. During the feeding process, the feeding speed of the feeding roller assembly is matched with the processing speed of each subsequent mechanism to ensure that the sheet material can be delivered to each processing step in a timely and accurate manner, avoiding accumulation or insufficient supply. The driving roller of the feeding roller assembly rotates under the drive of the feeding drive motor, and works with the driven roller to clamp the sheet material, achieving stable conveying of the sheet material.

[0063] Step b: Stamping: The upper die of the stamping mechanism moves downward under the drive of the stamping hydraulic cylinder, cooperating with the lower die to stamp the sheet metal, forming the preliminary shape of the automotive battery pack casing. During the stamping process, the sheet metal is precisely positioned through the cooperation of positioning pins and positioning holes. The positioning pins are inserted into the positioning holes to ensure that the sheet metal does not shift during the stamping process, improving the accuracy and consistency of stamping. After stamping is completed, the stamping hydraulic cylinder drives the upper die to move upward, awaiting the next stamping.

[0064] Step c: Edge trimming: The stamped shell is conveyed to the edge trimming mechanism. The edge trimming drive device drives the cutter to cut the edge of the shell, removing excess material. During edge trimming, the edge trimming hydraulic cylinder drives the upper cutter downwards, cooperating with the lower cutter to complete the cutting action. The trimmed shell edges are more regular, preparing it for the subsequent polishing process.

[0065] Step d: Grinding: The trimmed outer shell is conveyed to the grinding mechanism. The grinding drive device drives the grinding wheel to rotate, grinding the edges and surface of the outer shell to make it smooth and flat. The trimmed outer shell is first coarsely ground by a coarse grinding wheel to remove burrs, protrusions, etc. from the edges and surface; then it is finely ground by a fine grinding wheel to further improve the surface finish of the outer shell. The grinding drive motor drives the grinding wheel to rotate at high speed, and the grinding effect is achieved through contact friction with the outer shell.

[0066] Step e: Inspection: The polished shell is transported to the inspection mechanism. A vision inspection device inspects its appearance, and a dimensional inspection device inspects its dimensions. The industrial camera of the vision inspection device captures images of the shell, and the image processing system analyzes and processes the images to determine whether there are any appearance defects. The laser rangefinder of the dimensional inspection device measures various dimensional parameters of the shell by emitting a laser beam and compares them with preset standard dimensions to determine whether the shell dimensions are qualified.

[0067] Step f: Unloading: For qualified shells, the robotic arm of the unloading mechanism picks them up and places them onto the unloading conveyor belt for transport to the next process; for unqualified shells, they are rejected. The robotic arm performs corresponding actions based on the inspection results of the inspection mechanism, realizing automatic sorting and unloading of shells, improving the automation level and efficiency of production.

[0068] This invention involves simultaneously detecting and verifying the tangential quality of the cut parts during the cutting process of the battery pack packaging shell, ensuring better quality of the final product.

[0069] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope described in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A processing equipment for automotive battery pack packaging shells, characterized in that, include: The frame is provided with a feeding mechanism, a stamping mechanism, a trimming mechanism, a grinding mechanism, a testing mechanism, and a unloading mechanism arranged in sequence, and the mechanisms are connected to each other by a conveying mechanism. The feeding mechanism includes a feeding frame, a material roll placement shaft and a feeding roller assembly mounted on the feeding frame. The feeding roller assembly is used to transport the sheet metal on the material roll placement shaft to the stamping and forming mechanism. The stamping forming mechanism includes a stamping frame, an upper die and a lower die disposed on the stamping frame, the upper die and the lower die cooperating to achieve stamping forming of sheet metal; The edge trimming mechanism includes an edge trimming frame, a cutter mounted on the edge trimming frame, and an edge trimming drive device for driving the cutter. The polishing mechanism includes a polishing frame, a polishing wheel mounted on the polishing frame, and a polishing drive device for driving the polishing wheel to rotate. The testing mechanism includes a testing frame, a visual inspection device and a size inspection device mounted on the testing frame; The unloading mechanism includes an unloading frame, a robotic arm mounted on the unloading frame, and an unloading conveyor belt; The upper and lower dies work together to stamp the sheet metal, and the cutter cuts the edges of the stamped sheet metal to produce the car battery pack packaging shell.

2. The automotive battery pack packaging shell processing equipment according to claim 1, characterized in that, The feeding roller assembly includes a driving roller and a driven roller. The driving roller is driven to rotate by a feeding drive motor, and the driven roller cooperates with the driving roller to clamp the plate.

3. The automotive battery pack packaging shell processing equipment according to claim 1, characterized in that, The upper die is connected to the stamping frame via a stamping hydraulic cylinder, which is fixed on the stamping frame. The stamping hydraulic cylinder drives the upper die to move up and down. The lower die is fixed on the stamping frame. The lower die is provided with a positioning post, and the upper die is provided with a positioning hole. The upper die and the lower die are engaged and fitted together through the positioning post of the upper die and the positioning hole of the lower die.

4. The automotive battery pack packaging shell processing equipment according to claim 1, characterized in that, The cutter includes an upper cutter and a lower cutter. The edge-cutting drive device is an edge-cutting hydraulic cylinder. The upper cutter moves up and down by being driven by the edge-cutting hydraulic cylinder. The edge-cutting hydraulic cylinder is fixed on the edge-cutting frame, and the lower cutter is fixed on the edge-cutting frame.

5. The automotive battery pack packaging shell processing equipment according to claim 1, characterized in that, The grinding wheel includes a coarse grinding wheel and a fine grinding wheel. Both the coarse grinding wheel and the fine grinding wheel are driven to rotate by the grinding drive device, which is a grinding drive motor. The cut plate is ground by the coarse grinding wheel and the fine grinding wheel in sequence.

6. The automotive battery pack packaging shell processing equipment according to claim 1, characterized in that, The visual inspection device includes an industrial camera and an image processing system for image inspection of the polished sheet material; the size detection device is a laser rangefinder sensor for sensing and detecting the polished sheet material.

7. A method for processing an automotive battery pack casing, using the automotive battery pack casing processing equipment as described in any one of claims 1-6, characterized in that, Includes the following steps: Step a: Feeding: The sheet material is mounted on the material roll placement shaft of the feeding mechanism, and the sheet material is conveyed to the stamping and forming mechanism through the feeding roller group; Step b: Stamping: The upper die of the stamping mechanism moves downward under the drive of the stamping hydraulic cylinder, and cooperates with the lower die to stamp the sheet metal to form the preliminary shape of the automotive battery pack packaging shell; Step c: Edge trimming: The stamped shell is conveyed to the edge trimming mechanism. The edge trimming drive device drives the cutter to cut the edge of the shell and remove excess material from the edge of the shell. Step d: Grinding: The cut-edge shell is conveyed to the grinding mechanism. The grinding drive device drives the grinding wheel to rotate, grinding the edges and surface of the shell to make it smooth and flat. Step e: Inspection: The polished shell is transported to the inspection mechanism, where a visual inspection device inspects its appearance and a dimensional inspection device inspects its dimensions. Step f: Unloading: For qualified shells, the unloading mechanism's robotic arm grabs the shells onto the unloading conveyor belt and transports them to the next process; for unqualified shells, they are rejected.

8. A method for processing an automotive battery pack casing according to claim 7, characterized in that, In step a, the feeding speed of the feeding roller assembly is matched with the processing speed of the subsequent mechanisms.

9. A method for processing an automotive battery pack casing according to claim 7, characterized in that, In step b, during the stamping process, the sheet metal is precisely positioned by the cooperation of the positioning pins and positioning holes.

10. A method for processing an automotive battery pack casing according to claim 7, characterized in that, In step d, the shell after the edges are cut is first coarsely ground with a coarse grinding wheel, and then finely ground with a fine grinding wheel.

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