Machine vision image acquisition equipment

Abstract

The invention provides machine vision image acquisition equipment. The machine vision image acquisition equipment comprises a rack, a dust removal mechanism and an image acquisition mechanism, the dust removal mechanism comprises a dust removal device and a first conveying device for conveying the dust removal device, the first conveying device is arranged on the rack, and the dust removal mechanism removes dust on the surface of the battery through wind energy; the image acquisition mechanism is located at the lower station of the dust removal mechanism and comprises an image acquisition device, a clamping device and a second conveying device used for conveying the clamping device, the image acquisition device and the second conveying device are both installed on the rack, and the clamping device is used for clamping a battery; and the image acquisition device is used for acquiring and identifying image information of the battery clamped by the clamping device and sending the processed defect detection result information of the battery to the terminal. The system is reasonable in layout, small in occupied area and high in intelligent degree, manual labor is replaced, the image acquisition efficiency and accuracy are improved, the quality of the battery is improved, and the labor cost is reduced.

Description

Technical Field

[0001] The present invention relates to the field of image acquisition technology, and in particular to a machine vision image acquisition device. Background Art

[0002] As we all know, when industrial vehicles are produced and processed, robotic arms are used to realize the processing process. However, without image acquisition equipment, it is impossible to analyze the workpieces that need to be processed. Especially in the production process of new energy vehicles, batteries are the core of the core of new energy vehicles. Once in the production process, due to the process or process or the negligence or operation errors of the staff, it is easy to cause the surface of the battery of the new energy vehicle to be dented or damaged, which will cause huge safety hazards in the hands of consumers.

[0003] At present, manual quality control is mostly used in the production and processing process, and the battery is inspected manually. However, due to personnel problems, omissions often occur during manual inspection and quality control. Therefore, the current manual inspection of the battery surface cannot meet the needs of high-speed and efficient production. Summary of the invention

[0004] Based on this, in order to solve the problem that the surface defects of batteries of traditional new energy vehicles are manually inspected, resulting in low production efficiency and high error rate, the present invention provides a machine vision image acquisition device, and its specific technical solution is as follows:

[0005] A machine vision image acquisition device, comprising:

[0006] frame;

[0007] A dust removal mechanism, the dust removal mechanism comprising a dust removal device and a first conveying device for conveying the dust removal device, the first conveying device being installed on the frame, and the dust removal mechanism removing dust on the surface of the battery by wind energy;

[0008] An image acquisition mechanism, the image acquisition mechanism is located at the lower workstation of the dust removal mechanism, the image acquisition structure includes an image acquisition device, a clamping device and a second conveying device for conveying the clamping device, the image acquisition device and the second conveying device are both installed on the frame, the clamping device is used to clamp the battery, the image acquisition device is used to acquire and identify image information of the battery clamped by the clamping device, and send defect detection result information of the processed battery to the terminal.

[0009] The above-mentioned machine vision image acquisition device, by providing a frame, provides an installation foundation for the dust removal mechanism and the image acquisition mechanism; since the battery needs to go through multiple processing steps during the production process, the surface of the battery is easily covered with dust. The machine vision image acquisition device is provided with a dust removal mechanism, and the wind energy produced by the dust removal mechanism is used to contact the surface of the battery, thereby removing the dust on the surface of the battery. In this way, it can be avoided that the image acquisition and recognition of the image acquisition mechanism are affected by the dust problem, and the acquisition and recognition efficiency and accuracy of the image acquisition mechanism are guaranteed; by providing a clamping device for clamping the battery from the dust removal mechanism, the battery is clamped by the clamping device, and the stability of the battery is guaranteed, thereby ensuring the acquisition quality of the image acquisition device; by providing an image acquisition device, the defect detection result information of the battery is obtained and sent to the terminal. The machine vision image acquisition device has a reasonable layout, a small footprint and a high degree of intelligence. It replaces manual labor, improves the efficiency and accuracy of image acquisition, thereby improving the quality of the battery and reducing labor costs.

[0010] Furthermore, the machine vision image acquisition device also includes a transfer mechanism, which is used to transfer the battery located in the dust removal device to the clamping device; the transfer mechanism is installed on the frame.

[0011] Furthermore, the transfer mechanism includes a suction cup and a manipulator for controlling the reciprocating movement of the suction cup between the dust removal device and the clamping device; the suction cup is used to adsorb the battery; and the manipulator is installed on the frame.

[0012] Further, a conveying direction of the first conveying device is parallel to a conveying direction of the second conveying device.

[0013] Furthermore, the dust removal device includes a base, a guide groove, a dust removal groove and a wind gun for providing wind energy; the wind gun, the guide groove and the dust removal groove are all installed on the base; the guide groove is connected to the dust removal groove; the opening of the guide groove and the opening of the dust removal groove are both arranged upward, and the guide groove and the dust removal groove cooperate to form a space for the longitudinal placement of the battery; a through hole is provided on the side wall of the dust removal groove, and the air outlet of the wind gun passes through the through hole toward the dust removal groove; the base is installed on the first conveying device.

[0014] Furthermore, there are a plurality of through holes located on two side walls of the dust removal slot, and each of the through holes corresponds to an air gun.

[0015] Furthermore, the dust removal device also includes a pressing device for abutting the battery in the space, and the pressing device includes a pressing block and a first driving device; the pressing block is located above the opening, and the pressing block is slidably connected to the base and can be lifted and lowered relative to the base; the first driving device is installed on the base and the telescopic end of the first driving device abuts against the base.

[0016] Furthermore, the image acquisition device includes a position information sensing module, an opening and closing module, an image acquisition module, a data storage module, an image processing module and an image recognition module; the position information sensing module is used to detect the position of the battery on the second conveyor belt, and when the battery enters a predetermined image acquisition area, a start signal is sent to the opening and closing module; when the battery leaves the predetermined image acquisition area, a close signal is sent to the opening and closing module; the opening and closing module is used to start the image acquisition module according to the start signal; the opening and closing module is used to close the image acquisition module according to the close signal; the data storage module is used to store the image acquired by the image acquisition module primary image information and a pre-stored standard image of the battery surface; the image acquisition module acquires the primary image information of the battery in a predetermined image acquisition area based on the start signal, and sends it to the data storage module; the image processing module is used to filter out the primary image information of the battery from the data storage module and synthesize the intermediate image information; the image processing module performs noise reduction and burr removal on the intermediate image information to obtain the surface image of the battery, and sends the surface image of the battery to the image recognition module; the image recognition module obtains the defect detection result information based on the comparison result between the standard image and the surface image, and sends the defect detection result information to the terminal.

[0017] Furthermore, the image acquisition device also includes a light source module, and the on-off module is electrically connected to the light source module. When the on-off module receives a start signal, the light source module is started; when the on-off module receives a shut-down signal, the light source module is shut down.

[0018] Furthermore, the image processing module is used to obtain the current position information and image acquisition position information of the battery, adjust the primary image information according to the current position information and image acquisition position information of the battery, extract each pixel value representing the battery from the adjusted primary image information, and average and synthesize the multiple pixel values ​​into corresponding intermediate image information. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention can be further understood from the following description in conjunction with the accompanying drawings. The components in the figures are not necessarily drawn to scale, but the emphasis is placed on illustrating the principles of the embodiments. In different views, the same reference numerals designate corresponding parts.

[0020] Figure 1 is a schematic diagram of the structure of a machine vision image acquisition device according to an embodiment of the present invention;

[0021] Figure 2 It is one of the structural schematic diagrams of the dust removal mechanism of the machine vision image acquisition device according to one embodiment of the present invention;

[0022] Figure 3 yes Figure 2 Schematic diagram of the local structure of A in FIG.

[0023] Figure 4 This is a second structural schematic diagram of a dust removal mechanism of a machine vision image acquisition device according to an embodiment of the present invention;

[0024] Figure 5 It is one of the structural schematic diagrams of the image acquisition mechanism of the machine vision image acquisition device according to one embodiment of the present invention;

[0025] Figure 6 yes Figure 5 Schematic diagram of the local structure of B in FIG.

[0026] Figure 7 This is a second structural schematic diagram of the image acquisition mechanism of the machine vision image acquisition device according to an embodiment of the present invention;

[0027] Figure 8 It is one of the structural schematic diagrams of the use state of the clamping device of the machine vision image acquisition device according to one embodiment of the present invention;

[0028] Fig. 9 This is a second structural schematic diagram of the use state of the clamping device of the machine vision image acquisition device according to an embodiment of the present invention;

[0029] Fig.10 is a schematic structural diagram of a clamping device of a machine vision image acquisition device according to an embodiment of the present invention;

[0030] Fig.11 yes Fig.10 Schematic diagram of the local structure of C in .

[0031] Description of reference numerals:

[0032] 1. Battery; 2. Dust removal mechanism; 21. Dust removal device; 211. Base; 212. Guide groove; 213. Air gun; 214. Pressing block; 215. First driving device; 216. First guide rail; 217. Limiting groove; 218. Protruding block; 219. Dust removal groove; 22. First conveying device; 3. Image acquisition mechanism; 31. Image acquisition device; 32. Clamping device; 321. Mounting frame; 322. Turntable ; 323, clamping assembly; 3231, frame; 3232, supporting device; 3233, fixing device; 32331, connecting frame; 32332, driving cylinder; 32333, abutment block; 324, second driving device; 325, limiting block; 326, lifting device; 33, second conveying device; 331, second guide rail; 332, second slider; 4, transfer mechanism; 41, suction cup; 42, manipulator. DETAILED DESCRIPTION

[0033] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with its embodiments. It should be understood that the specific implementation methods described herein are only used to explain the present invention and do not limit the protection scope of the present invention.

[0034] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation method.

[0035] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0036] The “first” and “second” mentioned in the present invention do not represent specific quantities and orders, but are merely used to distinguish names.

[0037] like Figures 1 to 11As shown, a machine vision image acquisition device in one embodiment of the present invention includes a frame, a dust removal mechanism 2 and an image acquisition mechanism 3; the dust removal mechanism 2 includes a dust removal device 21 and a first conveying device 22 for conveying the dust removal device 21, the first conveying device 22 is installed on the frame, and the dust removal mechanism 2 removes dust on the surface of the battery 1 by wind energy; the image acquisition mechanism 3 is located at the lower station of the dust removal mechanism 2, the image acquisition structure includes an image acquisition device 31, a clamping device 32 and a second conveying device 33 for conveying the clamping device 32, the image acquisition device 31 and the second conveying device 33 are both installed on the frame, the clamping device 32 is used to clamp the battery 1, and the image acquisition device 31 is used to collect and identify image information of the battery 1 clamped in the clamping device 32, and send the processed defect detection result information of the battery 1 to the terminal.

[0038] The above-mentioned machine vision image acquisition device, by providing a frame, provides an installation foundation for the dust removal mechanism 2 and the image acquisition mechanism 3; since the battery 1 needs to go through multiple processing steps during the production process, the surface of the battery 1 is easily covered with dust. The machine vision image acquisition device is provided with a dust removal mechanism 2, and the wind energy produced by the dust removal mechanism 2 is used to contact the surface of the battery 1, thereby removing the dust on the surface of the battery 1. In this way, it can be avoided that the image acquisition and recognition of the image acquisition mechanism 3 are affected by the dust problem, and the acquisition and recognition efficiency and accuracy of the image acquisition mechanism 3 are guaranteed; by providing a clamping device 32, it is used to clamp the battery 1 from the dust removal mechanism 2, and the battery 1 is clamped by the clamping device 32, so as to ensure the stability of the battery 1, and then ensure the acquisition quality of the image acquisition device 31; by providing an image acquisition device 31, the defect detection result information of the battery 1 is obtained and sent to the terminal. The machine vision image acquisition device has a reasonable layout, a small footprint and a high degree of intelligence, replaces manual labor, improves the efficiency and accuracy of image acquisition, thereby improving the quality of the battery 1 and reducing labor costs.

[0039] In one embodiment, the machine vision image acquisition device further includes a transfer mechanism 4, which is used to transfer the battery 1 located in the dust removal device 21 to the clamping device 32; the transfer mechanism 4 is installed on the frame. In this way, by providing the transfer mechanism 4, manual labor is replaced, and the transfer efficiency of the battery 1 is improved.

[0040] Furthermore, the transfer mechanism 4 includes a suction cup 41 and a manipulator 42 for controlling the reciprocating movement of the suction cup 41 between the dust removal device 21 and the clamping device 32; the suction cup 41 is used to absorb the battery 1; and the manipulator 42 is installed on the frame. In this way, the manipulator 42 is used to control the movement trajectory of the suction cup 41, and the suction cup 41 is used to absorb the battery 1, so that the manipulator 42 and the suction cup 41 cooperate to achieve the transfer of the battery 1.

[0041] In one embodiment, the suction cup 41 is replaced by a gripper, and the gripper is used to grip the battery 1. The gripper is a prior art and will not be described in detail here.

[0042] In one embodiment, the conveying direction of the first conveying device 22 is parallel to the conveying direction of the second conveying device 33. In this way, the floor space is reduced, making the structure of the machine vision image acquisition device more reasonable and compact.

[0043] Preferably, the first conveying device 22 is a conveyor belt.

[0044] In one embodiment, the dust removal device 21 includes a base 211, a guide groove 212, a dust removal groove 219 and a wind gun 213 for providing wind energy; the wind gun 213, the guide groove 212 and the dust removal groove 219 are all installed on the base 211; the guide groove 212 is connected to the dust removal groove 219; the opening of the guide groove 212 and the opening of the dust removal groove 219 are both arranged upward, and the guide groove 212 and the dust removal groove 219 cooperate to form a space for longitudinal placement of the battery 1; a through hole is provided on the side wall of the dust removal groove 219, and the air outlet of the wind gun 213 passes through the through hole toward the dust removal groove 219; the base 211 is installed on the first conveying device 22.

[0045] In this way, by providing a base 211, a mounting base is provided for the guide groove 212, the dust removal groove 219 and the air gun 213, and the base 211 is installed on the first conveying device 22, so that the base 211 is transported to the side of the transfer mechanism 4 through the first conveying device 22, satisfying the transfer mechanism 4's transfer requirements for the battery 1. By providing a guide groove 212, the guide groove 212 can accommodate multiple batteries 1, increasing the number of batteries 1 that can be carried. By providing a dust removal groove 219 and the dust removal groove 219 is connected to the guide groove 212

[0046] During use, the battery 1 can be arranged in the guide groove 212 by manual or mechanical equipment, and then the battery 1 can be pushed to the dust outlet groove by manual or mechanical equipment.

[0047] In one embodiment, the number of the through holes is multiple and they are located on both side walls of the dust removal slot 219, and each through hole corresponds to a wind gun 213. In this way, it is ensured that the battery 1 can be fully exposed to the wind, and the dust on the surface of the battery 1 is separated from the surface of the battery 1 as much as possible.

[0048] Preferably, the depth of the dust removal groove 219 is greater than or equal to the longitudinal height of the battery 1. In this way, the battery 1 is ensured to be fully exposed to the wind energy and the dust on the surface of the battery 1 is removed.

[0049] In one embodiment, the dust removal device 21 further includes a pressing device for abutting the battery 1 in the space, and the pressing device includes a pressing block 214 and a first driving device 215; the pressing block 214 is located above the opening, and the pressing block 214 is slidably connected to the base 211 and can move up and down relative to the base 211; the first driving device 215 is installed on the base 211 and the telescopic end of the first driving device 215 abuts against the base 211. In this way, by providing a pressing device, the batteries 1 located in the guide groove 212 are controlled to enter the dust removal groove 219 one by one, thereby avoiding serious collisions between the batteries 1.

[0050] Furthermore, a first guide rail 216 is disposed on the base 211 , and a first slider is slidably connected to the first guide rail 216 , and the first slider is connected to the pressing block 214 .

[0051] In one embodiment, the pressing block 214 is provided with a limiting groove 217, and the first driving device 215 is provided with a protruding block 218 matching the limiting groove 217 at the telescopic end. When the protruding block 218 is embedded in the limiting groove 217, the pressing block 214 realizes a lifting movement relative to the base 211 along with the telescopic movement of the first driving device 215.

[0052] Preferably, the outer contour of the pressing block 214 is arranged in a plate-like structure and is placed in a vertical direction, and the vertical projection surface of the pressing block 214 is located in the space.

[0053] Preferably, there are multiple dust removal devices 21, which improves the dust removal efficiency of the battery 1 and ensures that the battery 1 is continuously transported to the side of the transfer mechanism 4.

[0054] In one embodiment, the image acquisition device 31 includes a position information sensing module, an opening and closing module, an image acquisition module, a data storage module, an image processing module and an image recognition module; the position information sensing module is used to detect the position of the battery 1 on the second conveyor belt, and when the battery 1 enters a predetermined image acquisition area, a start signal is sent to the opening and closing module; when the battery 1 leaves the predetermined image acquisition area, a shutdown signal is sent to the opening and closing module; the opening and closing module is used to start the image acquisition module according to the start signal; the opening and closing module is used to close the image acquisition module according to the shutdown signal; the data storage module is used to store the image acquired by the image acquisition module The primary image information collected and the pre-stored standard image of the surface of the battery 1 are collected; the image acquisition module collects the primary image information of the battery 1 in the predetermined image acquisition area based on the start signal, and sends it to the data storage module; the image processing module is used to filter out the primary image information of the battery 1 from the data storage module and synthesize the intermediate image information; the image processing module performs noise reduction and burr removal on the intermediate image information to obtain the surface image of the battery 1, and sends the surface image of the battery 1 to the image recognition module, and the image recognition module obtains the defect detection result information based on the comparison result between the standard image and the surface image, and sends the defect detection result information to the terminal. In this way, manual work is replaced, work efficiency is improved, and labor costs are reduced.

[0055] In one embodiment, the image acquisition device 31 further includes a light source module, the on / off module is electrically connected to the light source module, and when the on / off module receives a start signal, the light source module is started; when the on / off module receives a shutdown signal, the light source module is shut down. In this way, by providing the light source module, it is ensured that the image acquisition module captures the image more clearly.

[0056] In one of the embodiments, the image processing module is used to obtain the current position information and image acquisition position information of the battery 1, adjust the primary image information according to the current position information and image acquisition position information of the battery 1, extract each pixel value representing the battery 1 from the adjusted primary image information, and average and synthesize the corresponding intermediate image information with multiple pixel values.

[0057] In one embodiment, the second conveying device 33 includes a second guide rail 331 and a second slider 332 slidably connected to the second guide rail 331 , and the second guide rail 331 is installed on the frame; the guiding direction of the second guide rail 331 is parallel to the conveying line of the first conveying device 22 .

[0058] In one embodiment, the second conveying device 33 can be replaced by a direct module, and the moving end of the second conveying device 33 is connected to the clamping device 32 .

[0059] In one embodiment, the clamping device 32 includes a mounting frame 321, a turntable 322, a clamping assembly 323 and a second driving device 324 for controlling the rotation of the turntable 322; the turntable 322 and the second driving device 324 are both mounted on the mounting frame 321, and the turntable 322 can rotate relative to the mounting frame 321; the mounting frame 321 is connected to the second slider 332; and the clamping assembly 323 is mounted on the turntable 322.

[0060] Preferably, the second driving device 324 is a rotary motor.

[0061] In this way, the second driving device 324 drives the turntable 322 to rotate, so that the clamping assembly 323 rotates together with the turntable 322, ensuring that the image acquisition device 31 can acquire multiple images at multiple angles and ensure the accuracy of image acquisition.

[0062] In one embodiment, the frame is provided with a limit block 325, the limit block 325 is provided with a positioning groove, the mounting frame 321 is provided with a lifting device 326, and the lifting device 326 controls the movement state of the clamping device 32 by controlling its moving end to reciprocate in and out of the positioning groove.

[0063] Wherein, the opening of the positioning groove is arranged upward.

[0064] That is, when the clamping device 32 is required to be in a stationary state, the lifting device 326 controls the moving end to be inserted into the positioning slot, so as to prevent the clamping device 32 from being offset when the image acquisition device 31 is acquiring images. When the clamping device 32 is required to continue to move, the lifting device 326 controls the moving end to be separated from the positioning slot.

[0065] like Figure 8 to Figure 11 As shown, in one embodiment, the clamping assembly 323 includes a frame 3231, a plurality of supporting devices 3232 and a plurality of fixing devices 3233; the clamping device 32 and the fixing device 3233 are both mounted on the frame 3231; the plurality of supporting devices 3232 are used to support the battery 1, and the plurality of fixing devices 3233 are used to press the battery 1 onto the frame 3231; the frame 3231 is mounted on the turntable 322.

[0066] Furthermore, the plurality of fixing devices 3233 enclose a limiting area for placing the battery 1 , and the supporting device 3232 is located in the limiting area.

[0067] Furthermore, the fixing device 3233 includes a connecting frame 32331, a driving cylinder 32332 and abutment block 32333; the connecting frame 32331 is connected to the frame 3231, the abutment block 32333 is hinged to the connecting frame 32331, and the output end of the driving cylinder 32332 is hinged to the abutment block 32333 and is used to control the abutment block 32333 to rotate, press and move away from the battery 1.

[0068] In this way, by providing a plurality of supporting devices 3232 and a plurality of fixing devices 3233 , the battery 1 is ensured to be firmly fixed on the frame 3231 by utilizing the cooperation between the supporting devices 3232 and the fixing devices 3233 .

[0069] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0070] The above-mentioned embodiments only express several implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. A machine vision image acquisition device, characterized in that: include: frame; A dust removal mechanism, the dust removal mechanism comprising a dust removal device and a first conveying device for conveying the dust removal device, the first conveying device being installed on the frame, and the dust removal mechanism removing dust on the surface of the battery by wind energy; An image acquisition mechanism, the image acquisition mechanism is located at the lower workstation of the dust removal mechanism, the image acquisition structure includes an image acquisition device, a clamping device and a second conveying device for conveying the clamping device, the image acquisition device and the second conveying device are both installed on the frame, the clamping device is used to clamp the battery, the image acquisition device is used to acquire and identify image information of the battery clamped by the clamping device, and send defect detection result information of the processed battery to the terminal.

2. The machine vision image acquisition device according to claim 1, characterized in that: It also includes a transfer mechanism, which is used to transfer the battery located in the dust removal device to the clamping device; the transfer mechanism is installed on the frame.

3. The machine vision image acquisition device according to claim 2, characterized in that: The transfer mechanism includes a suction cup and a manipulator for controlling the reciprocating movement of the suction cup between the dust removal device and the clamping device; the suction cup is used to adsorb the battery; and the manipulator is installed on the frame.

4. The machine vision image acquisition device according to claim 1 or 2, characterized in that: A conveying direction of the first conveying device is parallel to a conveying direction of the second conveying device.

5. The machine vision image acquisition device according to claim 1, characterized in that: The dust removal device includes a base, a guide groove, a dust removal groove and a wind gun for providing wind energy; the wind gun, the guide groove and the dust removal groove are all installed on the base; the guide groove is connected to the dust removal groove; the opening of the guide groove and the opening of the dust removal groove are both arranged upward, and the guide groove and the dust removal groove cooperate to form a space for the battery to be placed longitudinally; a through hole is provided on the side wall of the dust removal groove, and the air outlet of the wind gun passes through the through hole toward the dust removal groove; the base is installed on the first conveying device.

6. The machine vision image acquisition device according to claim 5, characterized in that: There are multiple through holes located on both side walls of the dust removal slot, and each through hole corresponds to an air gun.

7. The machine vision image acquisition device according to claim 5, characterized in that: The dust removal device also includes a pressing device for abutting the battery in the space, the pressing device includes a pressing block and a first driving device; the pressing block is located above the opening, the pressing block is slidably connected to the base and can move up and down relative to the base; The first driving device is installed on the base and the telescopic end of the first driving device abuts against the base.

8. The machine vision image acquisition device according to claim 1, characterized in that: The image acquisition device includes a position information sensing module, an opening and closing module, an image acquisition module, a data storage module, an image processing module and an image recognition module; the position information sensing module is used to detect the position of the battery on the second conveyor belt, and when the battery enters a predetermined image acquisition area, a start signal is sent to the opening and closing module; when the battery leaves the predetermined image acquisition area, a close signal is sent to the opening and closing module; the opening and closing module is used to start the image acquisition module according to the start signal; the opening and closing module is used to close the image acquisition module according to the close signal; the data storage module is used to store the primary image information acquired by the image acquisition module and the pre-stored standard image of the battery surface; Based on the start signal, the image acquisition module acquires primary image information of the battery in a predetermined image acquisition area and sends it to the data storage module; the image processing module is used to filter out the primary image information of the battery from the data storage module and synthesize intermediate image information; the image processing module performs noise reduction and burr removal on the intermediate image information to obtain a surface image of the battery, and sends the surface image of the battery to the image recognition module; the image recognition module obtains defect detection result information based on the comparison result between the standard image and the surface image, and sends the defect detection result information to the terminal.

9. The machine vision image acquisition device according to claim 8, characterized in that: The image acquisition device also includes a light source module, and the on-off module is electrically connected to the light source module. When the on-off module receives a start signal, the light source module is started; when the on-off module receives a shut-down signal, the light source module is shut down.

10. The machine vision image acquisition device according to claim 9, characterized in that: The image processing module is used to obtain the current position information and image acquisition position information of the battery, adjust the primary image information according to the current position information and image acquisition position information of the battery, extract each pixel value representing the battery from the adjusted primary image information, and average multiple pixel values ​​to synthesize corresponding intermediate image information.

Images