A detection device for alkaline hydrogen production bipolar plate

Abstract

This utility model relates to the field of bipolar plate detection technology, and in particular to a detection device for alkaline hydrogen production bipolar plates. It includes a base, on which a detection mechanism is mounted for detecting the bipolar plates. The detection mechanism includes: a main body assembly, comprising a frame fixed to the rear end of the top of the base, with a feeding conveyor belt and a discharging conveyor belt fixed to the left and right ends of the top of the frame, respectively; a pick-and-place assembly, comprising a base plate fixed to the middle of the front end of the frame, with a transverse slider slidably mounted on the front end of the base plate, and a longitudinal slider fixed to the front end of the transverse slider; and a flipping assembly, located in the middle of the top of the base for flipping the bipolar plates. The symmetrical dual suction cups enable parallel operations of feeding and discharging within one motion cycle, avoiding the time interval of sequential operation with a single suction cup, and ensuring the coordination and positioning accuracy of the dual-station operation through mechanical synchronization, significantly improving the operating efficiency and cycle time of the detection device.

Description

Technical Field

[0001] This utility model relates to the field of bipolar plate detection technology, specifically a detection device for alkaline hydrogen production bipolar plates. Background Technology

[0002] Alkaline water electrolysis hydrogen production technology is an efficient, clean, and green hydrogen energy production method. Its core component, the bipolar plate, is a key structural component of the electrolyzer, undertaking multiple functions such as conduction, gas conduction, sealing, and support. Its quality directly affects the operating efficiency, lifespan, and safety of the electrolyzer. According to CN217520443U, a scanning and inspection device for a hydrogen fuel bipolar plate production line is disclosed. This technology discloses a technical solution including "a base, two Y-axis modules mounted on the base, an X-axis module mounted between the two Y-axis modules, a scanning and inspection camera assembly mounted on the X-axis module, and a fixture platform located below the scanning and inspection camera assembly". It has the technical effect of "assembling the Y-axis module and the X-axis module into a dual-axis system, transporting and moving the scanning and inspection camera assembly fixed on the X-axis module, and scanning the product on the fixture platform. This inspection device can detect the glue path of the glued product and determine whether the glued product is qualified through an algorithm". Traditional designs employ a single pick-and-place mechanism that requires sequential completion of independent steps such as loading, inspection, flipping, and unloading. There are unavoidable waiting intervals between each step, making parallel operation impossible and resulting in an excessively long overall inspection cycle. Furthermore, repetitive positioning movements not only increase wear and tear on the mechanism but also waste energy, severely hindering the improvement of inspection efficiency on large-scale production lines. Utility Model Content

[0003] To address the shortcomings of existing technologies, this invention provides a detection device for alkaline hydrogen production bipolar plates. The symmetrical dual suction cups enable parallel operations of loading and unloading parts within one motion cycle. This not only avoids the time interval of sequential operation with a single suction cup, but also ensures the coordination and positioning accuracy of dual-station operation through mechanical synchronization, significantly improving the working efficiency and cycle time of the detection device.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a detection device for an alkaline hydrogen production bipolar plate, comprising a base, wherein a detection mechanism is disposed on the base for detecting the bipolar plate, the detection mechanism comprising: The main components include a frame fixed to the top rear end of the base, with a feeding conveyor belt and a discharging conveyor belt fixed to the left and right ends of the top of the frame, respectively; The pick-and-place assembly includes a base plate fixed to the middle of the front end of the frame. A horizontal slider is slidably mounted on the front end of the base plate. A vertical slider is fixed to the front end of the horizontal slider. A vertical plate is slidably mounted on the front end of the vertical slider. Suction cups are installed on both the left and right sides of the lower end of the vertical plate. A support arm is rotatably mounted on the front end of the base plate, and the other end of the support arm is rotatably connected to the upper end of the vertical plate. The flipping assembly is located at the top center of the base and is used to flip the bipolar plates.

[0005] Preferably, the pick-and-place assembly further includes a gear fixed to the rear end of the support arm, a guide groove fixed to the rear end of the base plate, a rack slidably installed inside the guide groove and meshing with the gear for transmission, and a first cylinder installed at one end of the base plate for driving the rack to move.

[0006] Preferably, the flipping assembly includes a mounting base fixed to the middle of the top of the base, with shaft brackets fixed to both the left and right ends of the top of the mounting base, and a frame rotatably mounted between the two shaft brackets. Clamping plates are slidably mounted on both the left and right ends inside the frame, and a second cylinder is mounted on both ends of the frame to drive the clamping plates to move.

[0007] Preferably, the flipping assembly further includes two rollers rotatably mounted at both ends of the clamping plate, and the rollers are located inside the frame.

[0008] Preferably, the flipping assembly further includes a stand at one end of the mounting base, on which a servo motor is mounted for driving the frame to rotate.

[0009] Preferably, the main component further includes a first industrial camera and a second industrial camera installed on the left and right sides of the front end of the frame.

[0010] Beneficial effects This invention provides a detection device for an alkaline hydrogen production bipolar plate. Compared with the prior art, it has the following advantages: 1. When the support arm rotates, its motion is transmitted through the mechanism and coordinated with the combined motion of the horizontal and vertical sliders to drive the vertical plate and the suction cups mounted at its lower end to perform precise up-down and left-right movement trajectories. This allows the suction cups mounted on the left side of the vertical plate to move above the loading conveyor belt, pick up the bipolar plates facing upwards, and transfer them to the flipping assembly for the flipping process. At the same time, the suction cups on the right side move synchronously above the flipping assembly, accurately grab the flipped bipolar plates facing downwards, and transfer them to the unloading conveyor belt. The symmetrical dual suction cups enable the parallel operation of loading and unloading parts within one motion cycle. This not only avoids the time interval of sequential operation of a single suction cup, but also ensures the coordination and positioning accuracy of the dual-station operation through mechanical synchronization, significantly improving the working efficiency and cycle time of the detection device.

[0011] 2. Once the bipolar plate is precisely positioned on the feeding conveyor belt, the first industrial camera immediately activates to acquire high-resolution images of its front side. Advanced image processing algorithms are used to detect surface scratches, dents, corrosion, and other defects in real time, completing a preliminary assessment of the front-side quality. Subsequently, the pick-and-place assembly transfers the workpiece to the flipping assembly for a precise 180-degree flip, and then smoothly transfers the flipped bipolar plate to the designated inspection station on the unloading conveyor belt. At this point, the second industrial camera automatically triggers to perform comprehensive image acquisition and defect analysis on the back side of the bipolar plate, achieving accurate inspection of the back-side quality. Attached Figure Description

[0012] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a schematic diagram of the front structure of the pick-and-place component in this utility model; Figure 3 This is a schematic diagram of the back of the pick-and-place component in this utility model; Figure 4 This is a schematic diagram of the flipping component in this utility model.

[0013] In the diagram: 1. Base; 2. Detection mechanism; 21. Main component; 211. Frame; 212. Loading conveyor belt; 213. Unloading conveyor belt; 214. First industrial camera; 215. Second industrial camera; 22. Picking and placing component; 221. Base plate; 222. Horizontal slider; 223. Vertical slider; 224. Vertical plate; 225. Suction cup; 226. Support arm; 227. Gear; 228. Guide groove; 229. Rack; 2210. First cylinder; 23. Tilting component; 231. Mounting base; 232. Shaft bracket; 233. Frame; 234. Clamping plate; 235. Second cylinder; 236. Roller; 237. Stand; 238. Servo motor. Detailed Implementation

[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0015] Please see Figure 1 - Figure 4 This utility model provides a technical solution: a detection device for an alkaline hydrogen production bipolar plate, including a base 1, on which a detection mechanism 2 is disposed and used to detect the bipolar plate, the detection mechanism 2 including: The main component 21 includes a frame 211 fixed to the top rear end of the base 1, with a feeding conveyor belt 212 and a discharging conveyor belt 213 fixed to the left and right ends of the top of the frame 211, respectively. The pick-and-place assembly 22 includes a base plate 221 fixed to the middle of the front end of the frame 211. A horizontal slider 222 is slidably mounted on the front end of the base plate 221. A vertical slider 223 is fixed to the front end of the horizontal slider 222. A vertical plate 224 is slidably mounted on the front end of the vertical slider 223. Suction cups 225 are mounted on both the left and right sides of the lower end of the vertical plate 224. A support arm 226 is rotatably mounted on the front end of the base plate 221, and the other end of the support arm 226 is rotatably connected to the upper end of the vertical plate 224. The flipping component 23 is located at the top center of the base 1 and is used to flip the bipolar plate.

[0016] In this embodiment, when the support arm 226 rotates, its motion is transmitted through the mechanism and coordinated with the combined motion of the transverse slider 222 and the longitudinal slider 223 to drive the upright plate 224 and the suction cup 225 installed at its lower end to perform precise up-down and left-right movement trajectories. This allows the suction cup 225 installed on the left side of the upright plate 224 to move above the loading conveyor belt 212, pick up the bipolar plate with the front facing up, and transfer it to the flipping assembly 23 for the flipping process. At the same time, the suction cup 225 on the right side moves synchronously above the flipping assembly 23, accurately grabs the bipolar plate with the back facing up that has been flipped, and transfers it to the unloading conveyor belt 213. The symmetrical dual suction cups realize the parallel operation of loading and unloading parts within one motion cycle, which not only avoids the time interval of the sequential operation of a single suction cup, but also ensures the coordination and positioning accuracy of the dual-station operation through mechanical synchronization, significantly improving the working efficiency and operating cycle of the detection device.

[0017] Specifically, the pick-and-place assembly 22 also includes a gear 227 fixed to the rear end of the support arm 226, a guide groove 228 fixed to the rear end of the base plate 221, a rack 229 slidably installed inside the guide groove 228 and meshing with the gear 227 for transmission, and a first cylinder 2210 installed at one end of the base plate 221 for driving the rack 229 to move.

[0018] In this embodiment, the first cylinder 2210 serves as a power source to drive the rack 229 to perform precise linear reciprocating motion within the guide groove 228. The linear motion is converted into rotational motion by the gear 227 meshing with the rack 229, thereby driving the support arm 226 fixed to the front end of the gear 227 to rotate.

[0019] Specifically, the flipping assembly 23 includes a mounting base 231 fixed in the middle of the top of the base 1. The mounting base 231 has a shaft bracket 232 fixed at both the left and right ends. A frame 233 is rotatably mounted between the two shaft brackets 232. The frame 233 has a clamping plate 234 slidably mounted at both the left and right ends. A second cylinder 235 is mounted at both ends of the frame 233 and is used to drive the clamping plate 234 to move.

[0020] In this embodiment, when the bipolar plate is moved into the frame 233, the second cylinders 235 installed at both ends of the frame 233 operate synchronously, driving the clamping plates 234 on both sides to slide in opposite directions along the internal track of the frame 233, thereby reliably clamping and fixing the bipolar plate from the left and right sides.

[0021] Specifically, the flipping assembly 23 also includes two rollers 236 that are rotatably mounted at both ends of the clamping plate 234, and the rollers 236 are located inside the frame 233.

[0022] In this embodiment, when the second cylinder 235 drives the clamping plate 234 to slide in opposite directions within the frame 233, the roller 236 rolls accordingly, transforming the sliding friction between the clamping plate 234 and the frame 233 into rolling friction. This design significantly reduces the frictional resistance when the clamping plate 234 moves, making the movement of the second cylinder 235 easier and smoother.

[0023] Specifically, the flipping assembly 23 also includes a stand 237 disposed at one end of the mounting base 231, on which a servo motor 238 is mounted and used to drive the frame 233 to rotate.

[0024] In this embodiment, when the bipolar plate needs to be flipped, the servo motor 238 receives a control signal and starts to rotate the drive frame 233 180 degrees around the support axis of the shaft frame 232 through high-precision angle control, so as to ensure that the bipolar plate can accurately complete the conversion between the front and back sides.

[0025] Specifically, the main component 21 also includes a first industrial camera 214 and a second industrial camera 215 installed on the left and right sides of the front end of the frame 211.

[0026] In this embodiment, after the bipolar plate is precisely positioned on the feeding conveyor belt 212, the first industrial camera 214 is immediately activated to acquire high-resolution images of its front side. Through advanced image processing algorithms, surface scratches, pits, corrosion and other defects are detected in real time to complete the preliminary assessment of the front quality. Subsequently, the pick-and-place assembly 22 transfers the workpiece to the flipping assembly 23 for a precise 180-degree flip, and then smoothly transfers the flipped bipolar plate to the predetermined inspection station on the unloading conveyor belt 213. At this time, the second industrial camera 215 is automatically triggered to perform comprehensive image acquisition and defect analysis on the back side of the bipolar plate, thereby achieving accurate detection of the back quality.

[0027] The working principle and usage process of this utility model are as follows: First, after the bipolar plate is precisely positioned on the feeding conveyor belt 212, the first industrial camera 214 is immediately activated to acquire high-resolution images of its front side. Through advanced image processing algorithms, surface scratches, pits, corrosion and other defects are detected in real time to complete the preliminary assessment of the front side quality. Then, the first cylinder 2210, as a power source, drives the rack 229 to perform precise linear reciprocating motion in the guide groove 228. The linear motion is converted into rotational motion by the gear 227 meshing with the rack 229, thereby driving the support arm 226 fixed at the front end of the gear 227 to rotate. When the support arm 226 rotates, its motion is transmitted through the mechanism and coordinated with the combined motion of the horizontal slider 222 and the vertical slider 223 to jointly drive the vertical plate 224 and the suction cup 225 installed at its lower end to perform precise up-down and left-right movement trajectories. This allows the suction cup 225 installed on the left side of the vertical plate 224 to move to the top of the feeding conveyor belt 212, pick up the bipolar plate with the front side facing up and transfer it to the flipping assembly 23 for the flipping process. At the same time, the suction cup 225 on the right side moves synchronously to the top of the flipping assembly 23, accurately grabs the bipolar plate with the back side facing up that has been flipped, and transfers it to the unloading conveyor belt 213. When the bipolar plate is moved into the frame 233, the second cylinders 235 installed at both ends of the frame 233 act synchronously, driving the clamping plates 234 on both sides to slide in opposite directions along the internal track of the frame 233, thereby reliably clamping and fixing the bipolar plate from the left and right sides; the servo motor 238 is activated after receiving the control signal, and drives the frame 233 to rotate 180 degrees around the support axis of the shaft frame 232 through high-precision angle control, ensuring that the bipolar plate can accurately complete the conversion between the front and back sides; Finally, the flipped bipolar plate is smoothly transferred to the predetermined inspection station on the unloading conveyor belt 213; at this time, the second industrial camera 215 is automatically triggered to perform comprehensive image acquisition and defect analysis on the back of the bipolar plate, so as to achieve accurate inspection of the back quality.

[0028] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0029] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A detection device for an alkaline hydrogen production bipolar plate, comprising a base (1), characterized in that: The base (1) is provided with a detection mechanism (2) for detecting bipolar plates. The detection mechanism (2) includes: The main component (21) includes a frame (211) fixed to the top rear end of the base (1), and a feeding conveyor belt (212) and a discharging conveyor belt (213) are fixed to the left and right ends of the top of the frame (211). The pick-and-place assembly (22) includes a base plate (221) fixed at the middle of the front end of the frame (211). A horizontal slider (222) is slidably mounted on the front end of the base plate (221). A vertical slider (223) is fixed on the front end of the horizontal slider (222). A vertical plate (224) is slidably mounted on the front end of the vertical slider (223). Suction cups (225) are mounted on both the left and right sides of the lower end of the vertical plate (224). A support arm (226) is rotatably mounted on the front end of the base plate (221), and the other end of the support arm (226) is rotatably connected to the upper end of the vertical plate (224). The flipping component (23) is set at the top center of the base (1) and is used to flip the bipolar plate.

2. The detection device of the alkaline hydrogen generation bipolar plate according to claim 1, characterized in that: The pick-and-place assembly (22) also includes a gear (227) fixed to the rear end of the support arm (226), a guide groove (228) fixed to the rear end of the base plate (221), a rack (229) is slidably installed inside the guide groove (228) and meshes with the gear (227) for transmission, and a first cylinder (2210) is installed at one end of the base plate (221) for driving the rack (229) to move.

3. The device for detecting a basic hydrogen production bipolar plate according to claim 1, characterized in that: The flipping assembly (23) includes a mounting base (231) fixed in the middle of the top of the base (1). The mounting base (231) has a shaft bracket (232) fixed at both the left and right ends. A frame (233) is rotatably mounted between the two shaft brackets (232). The frame (233) has a clamping plate (234) slidably mounted at both the left and right ends. A second cylinder (235) is mounted at both ends of the frame (233) and is used to drive the clamping plate (234) to move.

4. The device for detecting a basic hydrogen production bipolar plate according to claim 3, characterized in that: The flipping assembly (23) also includes two rollers (236) rotatably mounted at both ends of the clamp (234), and the rollers (236) are located inside the frame (233).

5. The device for detecting a basic hydrogen production bipolar plate according to claim 3, characterized in that: The flipping assembly (23) also includes a stand (237) set at one end of the mounting base (231), on which a servo motor (238) is mounted and used to drive the frame (233) to rotate.

6. The device for detecting a basic hydrogen production bipolar plate according to claim 1, characterized in that: The main component (21) also includes a first industrial camera (214) and a second industrial camera (215) installed on the left and right sides of the front end of the frame (211).

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