Visual detection device for battery shell

Abstract

A battery shell visual inspection device disclosed by the present invention comprises a stand column, a processing mechanism is arranged outside the stand column, the processing mechanism comprises a fixing plate, the outer surface of the fixing plate is fixedly connected with the top of the stand column, a body of the fixing plate is fixedly connected with lifting rods in a penetrating manner, and the lifting rods are arranged on the fixing plate at equal angles. Wherein the output end of one lifting rod is fixedly connected with a rotating cylinder, and the output end of the rotating cylinder is fixedly connected with a sliding rail, relates to the technical field of battery shell detection, and solves the problems that when an existing battery shell detection device is used, appearance detection is carried out through a visual sensor, high-precision imaging equipment and complex computing power support are needed, and the detection efficiency is high. The problems that the detection cost and the maintenance cost are increased, meanwhile, only a shell can be singly detected, and for a steel shell with a repairable defect, additional equipment is needed for repairing, transferring and re-detecting, so that the detection efficiency is further reduced are solved.

Description

Technical Field

[0001] This invention relates to the field of battery casing inspection technology, specifically to a battery casing visual inspection device. Background Technology

[0002] In traditional operations, manual inspection of the shape quality of cylindrical battery casings is not only time-consuming and labor-intensive, but also has poor inspection efficiency and accuracy. A utility model with announcement number CN220231519U discloses a rapid inspection device for cylindrical battery casings, including a conveying mechanism, a handling mechanism, and a vision inspection mechanism. The battery is conveyed to the vision inspection mechanism in an orderly manner for visual inspection. The entire inspection process is basically automated, requiring no manual intervention. The inspection process is fast, convenient, and highly accurate, thus improving work efficiency.

[0003] Although this device has the advantages mentioned above, it still has the following drawbacks in practical use: 1) The device detects the shape of the battery steel shell through a visual sensor, which requires high-precision imaging equipment and relatively complex computing power, thus increasing the detection and maintenance costs. 2) This device can only perform simple shape inspection on the battery steel shell. When there are repairable defects in the steel shell, it is still necessary to transfer the defective steel shell and process it through other equipment, and then conduct another inspection. This is not only time-consuming and labor-intensive, but also reduces the inspection efficiency.

[0004] Therefore, it is necessary to address the existing problems with current battery casing testing devices. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides a visual inspection device for battery casings. This device solves the problems of existing battery casing inspection devices, which require high-precision imaging equipment and complex computing power for shape inspection using visual sensors, increasing inspection and maintenance costs. Furthermore, these devices can only inspect a single type of casing, and for steel casings with repairable defects, additional equipment is needed for repair, transportation, and re-inspection, further reducing inspection efficiency.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a visual inspection device for battery casings, comprising a column, a processing mechanism disposed on the outside of the column, the processing mechanism comprising a fixed plate, the outer surface of the fixed plate being fixedly connected to the top of the column, a lifting rod being fixedly connected through the body of the fixed plate, the lifting rod being disposed at equal angles on the fixed plate, a rotary cylinder being fixedly connected to the output end of one of the lifting rods, a slide rail being fixedly connected to the output end of the rotary cylinder, two linear motors being slidably connected to the outer surface of the slide rail, spring rods being fixedly connected to the outer surfaces of both linear motors, a scraper being fixedly connected to the output end of one of the spring rods, a water-absorbing sleeve being sleeved on the outer surface of the scraper, and a brush roller being rotatably connected to the output end of the other spring rod, the brush roller being used to apply a detection liquid to the inner surface of the steel casing, and the water-absorbing sleeve being used to clean the detection liquid from the non-damaged surfaces inside and outside the steel casing.

[0007] Preferably, two telescopic rods are fixedly connected to the outer surface of the column, and the output ends of the two telescopic rods are respectively fixedly connected to a fixed cylinder and a fan. The fixed cylinder is sleeved on the outside of the brush roller, and the fan is located on one side of the outer surface of the water absorption sleeve.

[0008] Preferably, the brush roller is provided with an auxiliary component, which includes a turntable. The body of the turntable is rotatably connected to the outer surface of the column. A fixed base is fixedly connected to the outer surface of the turntable at equal angles. Two arc-shaped clamping strips are provided on the top of the fixed base. Rotating strips are fixedly connected to the outer surfaces of the two clamping strips. A fixed strip is rotatably connected to one end of each of the two rotating strips. The outer surfaces of the two fixed strips are respectively fixedly connected to both sides of the outer surface of the fixed base. Adjusting rods are rotatably connected to both sides of the outer surface of the fixed base. The output ends of the two adjusting rods are respectively rotatably connected to the outer surfaces of the two rotating strips.

[0009] Preferably, the top of the base has a groove, a rotary motor is fixedly connected inside the groove, and a circular plate is fixedly connected to the output end of the rotary motor. The top of the circular plate is flush with the top of the base.

[0010] Preferably, a detection component is provided on the outside of the brush roller. The detection component includes two fixed frames. The outer surfaces of the two fixed frames are respectively fixedly connected to the output ends of two adjacent lifting rods. Two imaging modules are fixedly connected to the outer surface of one of the fixed frames. The two imaging modules are used to detect the inner and outer surfaces of the steel shell. Ultraviolet lamps are provided on the outer surfaces of the two imaging modules. The outer surfaces of the ultraviolet lamps on both sides are fixedly connected to the outer surface of one of the fixed frames.

[0011] Preferably, two laser rangefinders are fixedly connected to the outer surface of another of the brackets, and the two laser rangefinders are used to detect the thickness and roundness of the steel shell.

[0012] Preferably, the laser rangefinder is provided with a correction unit on its exterior. The correction unit includes a frame, the outer surface of which is fixedly connected to the output end of the lifting rod. A horizontal plate is fixedly connected to the outer surface of the frame. A sleeve is fixedly connected to the lower part of the horizontal plate by a connecting bar. A punching head is provided above the sleeve. A coil is sleeved on the outside of the sleeve. Two pins are fixedly connected to the outer surface of the coil. The outer surfaces of the two pins are slidably connected through the body of the horizontal plate.

[0013] Preferably, the body of the horizontal plate has a through groove, and two ball screws are movably connected inside the groove. Two push rods are rotatably connected to the top of the stamping head, and one end of each push rod is rotatably connected to the movable end of the two ball screws.

[0014] This invention provides a visual inspection device for battery casings. Compared with the prior art, it has the following advantages: (1) By setting up a processing mechanism, a linear motor is used to drive the scraper and the brush roller to move, so that the two can contact the inner and outer arc surfaces of the cylindrical battery steel shell respectively. Then, the two are driven to rotate by a rotary cylinder, and the rotation of the battery steel shell allows the brush roller to apply the detection liquid containing fluorescent agent to the inner and outer arc surfaces of the battery steel shell. The applied detection reagent can be cleaned by the scraper and the water-absorbing sleeve. Thus, the appearance of the battery steel shell can be detected by whether there is fluorescent agent on the inner and outer arc surfaces, thereby reducing the difficulty and cost of detection.

[0015] (2) By setting auxiliary components, the battery steel shell can be stably placed on the base by using clamping bars, and it can be transported by rotating the turntable, which facilitates continuous testing and improves the continuity and efficiency of the overall testing. At the same time, the battery steel shell can be rotated by using a rotary motor and a circular plate, which facilitates the pretreatment of the outer arc surface of the battery steel shell by the testing liquid.

[0016] (3) By setting up detection components, the imaging module and ultraviolet lamp are lowered by the action of the frame and placed inside and outside the battery steel shell respectively. The ultraviolet lamp can make the fluorescent agent emit fluorescence. The imaging module can judge whether the shape of the battery steel shell is standard by whether there is fluorescence, so as to reduce the difficulty and cost of detection. At the same time, the wall thickness and shape of the battery steel shell are imaged by the laser rangefinder, so that the correctable battery steel shell can be identified, further improving the detection accuracy and efficiency.

[0017] (4) By setting up a correction unit, the sleeve is lowered first and placed on the outside of the battery steel shell through the action of the connecting frame and the cross plate. Then, the battery steel shell can be stamped by the lowering of the stamping head, so that the battery steel shell with dents or other defects that can be easily corrected can be repaired, thereby avoiding the problems of transportation and additional processing, and further improving the detection efficiency. In addition, the battery steel shell can be heated by eddy current through the movement of the coil, which further facilitates the correction work. Attached Figure Description

[0018] Figure 1 This is a perspective view of the external structure of the present invention; Figure 2 This is a perspective view of the external structure of the brush roller of the present invention; Figure 3 This is a perspective view of the internal structure of the mounting base of the present invention; Figure 4 This is a perspective view of the external structure of the frame of the present invention; Figure 5 This is a perspective view of the external structure of the sleeve of the present invention.

[0019] In the diagram: 1. Column; 2. Fixed plate; 3. Lifting rod; 4. Rotary cylinder; 5. Slide rail; 6. Linear motor; 7. Spring rod; 8. Auxiliary component; 81. Turntable; 82. Fixed base; 83. Clamping bar; 84. Rotating bar; 85. Fixed bar; 86. Adjusting rod; 87. Groove; 88. Rotary motor; 89. Circular plate; 9. Detection component; 91. Fixed frame; 92. Imaging module; 93. Ultraviolet lamp; 94. Laser rangefinder; 95. Correction unit; 951. Connecting frame; 952. Horizontal plate; 953. Connecting bar; 954. Sleeve; 955. Punch head; 956. Coil; 957. Pin; 958. Slide groove; 959. Ball screw; 9510. Push bar; 10. Scraper; 11. Water suction sleeve; 12. Brush roller; 13. Telescopic rod; 14. Fixed cylinder; 15. Fan. Detailed Implementation

[0020] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0021] Please see Figure 1-5 The present invention provides a technical solution: a visual inspection device for battery casings. The system includes a column 1, which is fixed to the ground at its base by a triangular plate. A processing mechanism is installed on the exterior of the column 1. This mechanism includes a fixed plate 2 with multiple ends arranged at equal angles to provide multiple processing stations. The outer surface of the fixed plate 2 is fixedly connected to the top of the column 1. A lifting rod 3 is fixedly connected through the body of the fixed plate 2. The lifting rod 3 is made of an electric push rod and is electrically connected to an external control circuit. The lifting rod 3 is arranged at equal angles on the fixed plate 2. A rotary cylinder 4 is fixedly connected to the output end of one of the lifting rods 3. The rotary cylinder 4 is electrically connected to an external control circuit, and a rotary electrical contact element can be installed on its output end. Both the input and output ends of the adapter electrical component are equipped with drag chain structures. The drag chain structures on both sides are used for electrical connection to the external control circuit and the linear motor 6, respectively. The output end of the rotary cylinder 4 is fixedly connected to the slide rail 5. Two linear motors 6 are slidably connected to the outer surface of the slide rail 5. The linear motors 6 have a self-locking function to maintain positional stability. The linear motor 6 is mainly composed of a slider, a moving module, and a stator module. The moving module is mounted on the slider and fixed to the slide rail 5. The stator module is fixed to the outside of the slide rail 5. The stator module is composed of a permanent magnet array with the magnetic poles of the permanent magnets arranged alternately with N and S poles. A periodic magnetic field is formed. The moving module consists of an armature winding, which is made of multi-phase winding embedded in an iron core. The principle of the linear motor 6 sliding on the slide rail 5 is as follows: when an alternating current is applied to the armature winding, a traveling wave magnetic field is generated. The traveling wave magnetic field interacts with the static magnetic field of the permanent magnet, and through the Lorentz force, an axial linear thrust is directly generated, which pushes the moving module to drive the slider to move linearly along the slide rail 5. Spring rods 7 are fixedly connected to the outer surfaces of both linear motors 6. The spring rods 7 are elastically telescopic to provide adjustable space. A scraper 10 is fixedly connected to the output end of one side of the spring rod 7. The scraper 10 is made of a material with high hardness, wear resistance and good adhesion. Made of a gel-like material for scraping off the test liquid, the outer surface of the scraper 10 is fitted with a water-absorbing sleeve 11. The water-absorbing sleeve 11 is made of fibers with good absorbency and can be fixed to the outside of the scraper 10 by a Velcro structure for easy disassembly and replacement. At the same time, neither the water-absorbing sleeve 11 nor the scraper 10 is deformable. The output end of another spring rod 7 is rotatably connected to a brush roller 12. The brush roller 12 is made of sponge with good absorbency and deformability or a material with the same function, so as to facilitate the application of the test liquid to the battery steel shell. The brush roller 12 is used to apply the test liquid to the inner surface of the steel shell, and the water-absorbing sleeve 11 is used to clean the test liquid on the undamaged surfaces inside and outside the steel shell.

[0022] Two telescopic rods 13 are fixedly connected to the outer surface of the column 1. The telescopic rods 13 are made of electric push rods and are electrically connected to an external control circuit. The output ends of the two telescopic rods 13 are respectively fixedly connected to a fixed cylinder 14 and a fan 15. The fixed cylinder 14 is filled with a detection liquid containing fluorescent agent and is connected to an external detection liquid supply device through a spring tube. The fan 15 has a heating function and is electrically connected to an external control circuit for drying the water absorption sleeve 11. The fixed cylinder 14 is sleeved on the outside of the brush roller 12, and the fan 15 is located on one side of the outer surface of the water absorption sleeve 11.

[0023] By setting up a processing mechanism, a linear motor 6 drives the scraper 10 and the brush roller 12 to move, so that they can contact the inner and outer arc surfaces of the cylindrical battery steel shell respectively. Then, the rotary cylinder 4 drives the two to rotate, and the rotation of the battery steel shell allows the brush roller 12 to apply the detection liquid containing fluorescent agent to the inner and outer arc surfaces of the battery steel shell. The scraper 10 and the water-absorbing sleeve 11 can clean up the applied detection reagent. Thus, the appearance of the battery steel shell can be detected by whether there is fluorescent agent on the inner and outer arc surfaces, thereby reducing the difficulty and cost of detection.

[0024] An auxiliary component 8 is provided on the outside of the brush roller 12. The auxiliary component 8 includes a turntable 81. A drive device is provided at the bottom of the turntable 81 for rotation. The drive device includes a gear ring, gears, and a drive motor connected to each other. The drive motor is electrically connected to an external control circuit. A rotating electrical connection element is provided on the turntable 81 to supply power to the adjusting rod 86 and the rotary motor 88. At the same time, multiple belt conveyors and robotic arms (not shown in the figure) are provided on the outside of the turntable 81 for feeding the battery steel shells to be inspected and unloading qualified and defective steel shells. The body of the turntable 81 is rotatably connected to the outer surface of the column 1. A fixed base 82 is fixedly connected to the outer surface of the turntable 81 at equal angles. Two arc-shaped clamping strips 83 are provided on the top of the fixed base 82. The arc shape matches the outer arc of the standard battery steel shell, which is used to improve the stability of the battery steel shell on the base 82. There is a gap between the two clamping strips 83, and the scraper 10 and brush roller 12 are respectively located between the two sides of the gap between the two clamping strips 83. The outer surfaces of the two clamping strips 83 are fixedly connected to the rotating strips 84. One end of the two rotating strips 84 is rotatably connected to the fixed strip 85. The fixed strip 85 limits and supports the rotating strips 84 through the rotating shaft. The outer surfaces of the two fixed strips 85 are fixedly connected to the two sides of the outer surface of the base 82. The two sides of the outer surface of the base 82 are rotatably connected to the adjusting rods 86. The adjusting rods 86 are made of electric push rods and are electrically connected to the external control circuit. The output ends of the two adjusting rods 86 are rotatably connected to the outer surfaces of the two rotating strips 84 respectively.

[0025] The top of the base 82 is provided with a groove 87, which saves space. A rotary motor 88 is fixedly connected inside the groove 87. The rotary motor 88 can drive the battery steel shell to rotate. A circular plate 89 is fixedly connected to the output end of the rotary motor 88. The circular plate 89 is made of a rubber material with high hardness, good sealing and good friction, and is used to support the battery steel shell. The top of the circular plate 89 is flush with the top of the base 82.

[0026] By setting up auxiliary component 8, the battery steel shell can be stably placed on the base 82 using clamping bar 83, and can be transferred by rotating turntable 81, which facilitates continuous testing and improves the overall continuity and efficiency of testing. At the same time, the battery steel shell is rotated by rotating motor 88 and circular plate 89, which facilitates the pretreatment of the outer arc surface of the battery steel shell by testing liquid.

[0027] The brush roller 12 is equipped with a detection component 9. The detection component 9 includes two fixed frames 91. The outer surfaces of the two fixed frames 91 are fixedly connected to the output ends of two adjacent lifting rods 3. Two imaging modules 92 are fixedly connected to the outer surface of one of the fixed frames 91. The imaging modules 92 can be made of camera imaging modules and are electrically connected to an external control circuit. The two imaging modules 92 are used to detect the inner and outer surfaces of the steel shell. The outer surfaces of the two imaging modules 92 are equipped with ultraviolet lamps 93. The ultraviolet lamps 93 are electrically connected to an external control circuit. They emit ultraviolet light to make the fluorescent agent in the detection liquid fluoresce. They are made of 365nm ultraviolet flashlights, which emit ultraviolet light with higher purity and more precise wavelength, resulting in a very obvious fluorescence effect and less background light interference. The outer surfaces of the ultraviolet lamps 93 on both sides are fixedly connected to the outer surface of one of the fixed frames 91.

[0028] Two laser rangefinders 94 are fixedly connected to the outer surface of another frame 91. The laser rangefinders 94 are connected to the back-end terminal and fixed in a radial position above the circular plate 89. The two laser rangefinders 94 are used to detect the thickness and roundness of the steel shell.

[0029] By setting up the detection component 9, the imaging module 92 and the ultraviolet lamp 93 are lowered by the bracket 91 and positioned inside and outside the battery steel shell, respectively. The ultraviolet lamp 93 causes the fluorescent agent to fluoresce, and the imaging module 92 images the battery steel shell to determine whether its shape is standard by observing the presence or absence of fluorescence, thereby reducing the difficulty and cost of detection. At the same time, the laser rangefinder 94 images the wall thickness and shape of the battery steel shell, thereby enabling the identification of correctable battery steel shells, further improving the accuracy and efficiency of detection.

[0030] The laser rangefinder 94 is externally equipped with a correction unit 95, which includes a connecting frame 951. The connecting frame 951 provides space for the stamping motion. The outer surface of the connecting frame 951 is fixedly connected to the output end of the lifting rod 3. A horizontal plate 952 is fixedly connected to the outer surface of the connecting frame 951. The horizontal plate 952 serves as a connection and support. A sleeve 954 is fixedly connected to the bottom of the horizontal plate 952 via a connecting bar 953. The sleeve 954 is made of a material that is pressure-resistant, wear-resistant, high-temperature resistant, and has good heat dissipation. At the same time, its inner diameter is adapted to the outer dimensions of a standard battery steel shell to act as a stamping die. The connecting bar 953 facilitates the movement space of the stamping head 955 between the top of the horizontal plate 952 and the sleeve 954. A stamping head 955 is provided above 4. The stamping head 955 is spherical or cylindrical with a chamfered bottom. As a preferred method, spherical and chamfered cylindrical stamping heads 955 can be provided on adjacent processing stations to facilitate corresponding correction processing according to the actual defects of the battery steel shell. A coil 956 is sleeved on the outside of the sleeve 954. The coil 956 is electrically connected to an external control circuit and can heat the battery steel shell by eddy current heating. Two pins 957 are fixedly connected to the outer surface of the coil 956. The sliding action of the pins 957 causes the coil 956 to descend and be heated before the sleeve 954. The outer surfaces of the two pins 957 are slidably connected to the body of the horizontal plate 952.

[0031] The body of the horizontal plate 952 has a through groove 958. Two ball screws 959 are movably connected inside the groove 958. The ball screws 959 are made by an external servo motor, and the servo motor is electrically connected to an external control circuit. Two push bars 9510 are rotatably connected to the top of the punch head 955. The linkage action of the push bars 9510 can reduce the occupation of longitudinal space. One end of the two push bars 9510 is rotatably connected to the movable end of the two ball screws 959 respectively.

[0032] By setting up the correction unit 95, and through the action of the connecting frame 951 and the cross plate 952, the sleeve 954 first descends and fits onto the outside of the battery steel shell. Then, the stamping head 955 descends to stamp the battery steel shell, thereby repairing the battery steel shell with dents or other easily correctable defects. This avoids the problems of transportation and additional processing, further improving the detection efficiency. Furthermore, through the movement of the coil 956, the battery steel shell can be heated by eddy current, further facilitating the correction work.

[0033] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

[0034] Working principle: First, the battery steel shell to be tested is transported to the outside of the turntable 81 by the belt conveyor. Then, the robotic arm picks up the battery steel shell and places it on the circular plate 89. Then, the output ends of the adjusting rods 86 on both sides retract, so that the rotating bar 84 drives the clamping bar 83 to move to clamp the battery steel shell. Then, the turntable 81 rotates and drives the battery steel shell to move to the bottom of the rotating cylinder 4. Meanwhile, the output end of the telescopic rod 13 extends, so that the fixed cylinder 14 is directly below the brush roller 12. Then, the lifting rod 3 drives the brush roller 12 to descend into the interior of the fixed cylinder 14, so that the brush roller 12 adsorbs the detection liquid containing fluorescent agent. Then, the brush roller 12 and the fixed cylinder 14 are reset in sequence and descend again synchronously with the scraper 10. During the descent, the linear motor 6 slides along the slide rail 5 to adjust the position of the two, so that the two enter the interior of the battery steel shell. Then, the rotary cylinder 4 drives the two to rotate, and the two move by the action of centrifugal force. The output end of the compression spring rod 7 contacts the inner wall of the battery steel shell. The brush roller 12 then applies the detection liquid to the normal inner wall and the defective areas through deformation. The scraper 10 absorbs and cleans the detection liquid in contact with the accessible areas through the water suction sleeve 11. After a single treatment, the water suction sleeve 11 is dried by the fan 15. After the water suction sleeve 11 reaches full adsorption, it is disassembled and replaced to avoid affecting the cleaning effect of the detection liquid. After the internal processing is completed, the scraper 10 and brush roller 12 move from inside the battery steel shell to the outside. Then, the position is adjusted by the linear motor 6 so that the scraper 10 and the water-absorbing sleeve 11 are at the standard outer diameter of the steel shell, while the brush roller 12 is attached to the outside of the battery steel shell by extrusion deformation. Then, the rotary motor 88 drives the battery steel shell to rotate through the circular plate 89. During this process, the clamping bar 83 improves its stability, and through the action of centrifugal force, the convex defect pushes against the scraper 10 and brush roller 12, so that the detection liquid remains at the defect. After the battery steel shell is processed with testing liquid, the turntable 81 moves it to the bottom of the side frame 91. Then, the lifting rod 3 drives the two imaging modules 92 and the ultraviolet lamp 93 to descend through the frame 91, so that the two imaging modules 92 and the ultraviolet lamp 93 are respectively positioned inside and outside the battery steel shell. Then, the ultraviolet lamp 93 emits ultraviolet light to irradiate the inner and outer curved surfaces of the steel shell, and then the imaging module 92 forms an image. Subsequently, the back-end terminal checks whether there is fluorescence on the image to determine whether the shape of the battery steel shell is qualified. If it is qualified, it is transferred by the turntable 81 and unloaded by one of the belt conveyors. If it fails to meet the requirements, the steel shell moves to the bottom of another fixed frame 91, and then the fixed frame 91 drives the two laser rangefinders 94 to descend. During this process, the steel shell maintains a constant speed of rotation. By detecting the distance between the inner and outer arc surfaces of the steel shell and the two laser rangefinders 94, the specific characteristics of the steel shell are identified. If there are cracks or defects that cannot be easily corrected, the steel shell is unloaded by another belt conveyor for recycling and recasting or complex repair. If the steel shell can be easily straightened, it is moved to the lower part of the sleeve 954 by the turntable 81. Then, the corresponding lifting rod 3 drives the sleeve 954 to descend through the connecting frame 951 and the horizontal plate 952. During this process, the coil 956 descends first through the action of the pin 957. Depending on the actual straightening situation, it is determined whether the steel shell is heated by eddy current through the coil 956. After the coil 956 and the sleeve 954 are in contact with the fixed seat 82, the servo motor drives the ball screw 959 to move, thereby pushing the stamping head 955 to descend and enter the interior of the battery steel shell through the action of the push bar 9510. The battery steel shell is then straightened by stamping. After straightening, the above steps are repeated to re-inspect the steel shell to determine whether there is any breakage or incomplete straightening during the straightening process.

[0035] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A visual inspection device for battery casings, comprising a column (1), characterized in that: The column (1) is provided with a processing mechanism, which includes a fixed plate (2). The outer surface of the fixed plate (2) is fixedly connected to the top of the column (1). The body of the fixed plate (2) is fixedly connected with a lifting rod (3). The lifting rod (3) is set at equal angles on the fixed plate (2). One of the lifting rods (3) is fixedly connected to a rotary cylinder (4). The output end of the rotary cylinder (4) is fixedly connected to a slide rail (5). The outer surface of the slide rail (5) is slidably connected to two linear motors (6). The outer surfaces of the two linear motors (6) are fixedly connected to spring rods (7). The output end of one spring rod (7) is fixedly connected to a scraper (10). The outer surface of the scraper (10) is fitted with a water-absorbing sleeve (11). The output end of the other spring rod (7) is rotatably connected to a brush roller (12). The brush roller (12) is used to apply the detection liquid to the inner surface of the steel shell. The water-absorbing sleeve (11) is used to clean the detection liquid on the non-damaged surfaces inside and outside the steel shell. The brush roller (12) is provided with a detection component (9) on its outside. The detection component (9) includes two frames (91). The outer surfaces of the two frames (91) are fixedly connected to the output ends of two adjacent lifting rods (3). Two imaging modules (92) are fixedly connected to the outer surface of one of the frames (91). The two imaging modules (92) are used to detect the inner and outer surfaces of the steel shell. Ultraviolet lamps (93) are provided on the outer surfaces of the two imaging modules (92). The outer surfaces of the ultraviolet lamps (93) on both sides are fixedly connected to the outer surface of one of the frames (91). Two laser rangefinders (94) are fixedly connected to the outer surface of the other frame (91). The two laser rangefinders (94) are used to detect the thickness and roundness of the steel shell. The laser rangefinder (94) is externally equipped with a correction unit (95). The correction unit (95) includes a connecting frame (951). The outer surface of the connecting frame (951) is fixedly connected to the output end of the lifting rod (3). A horizontal plate (952) is fixedly connected to the outer surface of the connecting frame (951). A sleeve (954) is fixedly connected to the lower part of the horizontal plate (952) via a connecting bar (953). A punch head (955) is provided above the sleeve (954). A coil (956) is sleeved on the outside of the sleeve (954). Two pins (957) are fixedly connected to the outer surface of the coil (956). The outer surfaces of the two pins (957) are slidably connected to the body of the horizontal plate (952). The body of the horizontal plate (952) has a through groove (958). Two ball screws (959) are movably connected inside the groove (958). Two push bars (9510) are rotatably connected to the top of the punch head (955). One end of the two push bars (9510) is rotatably connected to the movable end of the two ball screws (959).

2. The battery casing visual inspection device according to claim 1, characterized in that: Two telescopic rods (13) are fixedly connected to the outer surface of the column (1). The output ends of the two telescopic rods (13) are respectively fixedly connected to a fixed cylinder (14) and a fan (15). The fixed cylinder (14) is sleeved on the outside of the brush roller (12), and the fan (15) is set on one side of the outer surface of the water absorption sleeve (11).

3. The battery casing visual inspection device according to claim 1, characterized in that: An auxiliary component (8) is provided on the outside of the brush roller (12). The auxiliary component (8) includes a turntable (81). The body of the turntable (81) is rotatably connected to the outer surface of the column (1). A base (82) is fixedly connected to the outer surface of the turntable (81) at equal angles. Two arc-shaped clamping strips (83) are provided on the top of the base (82). Rotating strips (84) are fixedly connected to the outer surfaces of the two clamping strips (83). A fixed strip (85) is rotatably connected to one end of the two rotating strips (84). The outer surfaces of the two fixed strips (85) are fixedly connected to both sides of the outer surface of the base (82). Adjusting rods (86) are rotatably connected to both sides of the outer surface of the base (82). The output ends of the two adjusting rods (86) are rotatably connected to the outer surfaces of the two rotating strips (84).

4. The battery casing visual inspection device according to claim 3, characterized in that: The top of the base (82) is provided with a groove (87), and a rotary motor (88) is fixedly connected inside the groove (87). A circular plate (89) is fixedly connected to the output end of the rotary motor (88), and the top of the circular plate (89) is flush with the top of the base (82).

Images