An industrial camera-based silicon steel sheet double-sided quality detection device

Abstract

The utility model discloses a kind of silicon steel sheet double-sided quality detection devices based on industrial camera, belong to silicon steel sheet surface quality detection technical field.The detection device includes visual inspection mechanism, conveying mechanism and turnover mechanism, conveying mechanism includes first conveying section and second conveying section;Turnover mechanism is set between first conveying section and second conveying section;Wherein, turnover mechanism includes clamping plate, pivot and turnover driving part, one end of clamping plate is fixedly installed in pivot, turnover driving part is used to drive pivot rotation to drive clamping plate and silicon steel sheet overturn to second conveying section;Wherein, clamping plate is equipped with the rectangular accommodating cavity of one end opening, the opening end of this rectangular accommodating cavity is towards first conveying section;The length of rectangular accommodating cavity is less than the length of silicon steel sheet, so that silicon steel sheet is partly exposed to rectangular accommodating cavity.The turnover mechanism in the detection device can drive silicon steel sheet to overturn, and structure is more simplified.In addition, cooperate visual inspection mechanism to detect the surface of silicon steel sheet.

Description

Technical Field

[0001] This utility model relates to the field of silicon steel sheet surface quality inspection technology, and more specifically, to a silicon steel sheet double-sided quality inspection device based on an industrial camera. Background Technology

[0002] Silicon steel sheets, also known as electrical steel, are an important electromagnetic material widely used in electrical equipment such as transformers and motors. Their surface quality directly affects the performance, efficiency, and reliability of the equipment. During the production process, silicon steel sheets may develop various defects such as scratches, holes, oxide scale, and coating defects. These defects can lead to problems such as localized overheating, decreased insulation performance, and increased losses during equipment operation, thereby affecting the equipment's service life and operational stability, and potentially even causing safety accidents. Therefore, surface quality inspection of silicon steel sheets is particularly important.

[0003] For example, Chinese patent application CN 113126005 A discloses a double-sided magnetic detection device, which includes a double-sided detection unit, a feeding mechanism, a flipping mechanism, and a receiving mechanism. The flipping mechanism includes a rotary cylinder, a turntable, and a rotating arm. The cylinder body of the rotary cylinder is mounted on a flipping mounting frame, and the maximum rotation angle of the rotary cylinder is 180°. The turntable is mounted on the piston rod of the rotary cylinder and is vertically positioned. The rotating arm is mounted on the turntable. The first surface of the rotating arm is flat, and a second material placement groove is formed on the first surface of the rotating arm. A vent hole is formed at the bottom of the second material placement groove, and the vent hole is connected to a negative pressure source. When the rotation angle of the rotary cylinder is 0 degrees, the rotating arm is close to the conveying mechanism of the first detection mechanism, and the first surface of the rotating arm is horizontally upward. The conveying mechanism transports the magnetic sheet that has been detected by the first detection mechanism to the second material placement groove. The second material placement groove holds the magnetic sheet in place by negative pressure to prevent the magnetic sheet from falling off during the flipping process. When the rotary cylinder rotates at 180°, the first side of the rotating arm faces downwards, and the second material trough is attached to the first material trough. At this time, the negative pressure source is disconnected, and the magnetic sheet in the second material trough enters the first material trough, and the magnetic sheet is flipped 180°.

[0004] Although this type of application can achieve double-sided inspection of magnetic sheets, the flipping mechanism used requires negative pressure adsorption to achieve stable flipping of the magnetic sheets, making this structure relatively complex. Utility Model Content

[0005] 1. Technical problems to be solved To address the relatively complex flipping mechanisms used in existing silicon steel sheet inspection processes, this invention provides a double-sided quality inspection device for silicon steel sheets based on an industrial camera. This invention optimizes the flipping mechanism's design based on the structural characteristics of silicon steel sheets, resulting in a simplified structure that not only enables the sheet to flip but also facilitates its rotation. Furthermore, by incorporating a vision inspection mechanism to inspect the surface of the silicon steel sheet, the requirements for accuracy during the flipping process and at the landing point are reduced.

[0006] 2. Technical solutions adopted To achieve the above objectives, the technical solution provided by this utility model is as follows: This invention discloses a double-sided quality inspection device for silicon steel sheets based on an industrial camera. The device includes a visual inspection mechanism, a conveying mechanism, and a flipping mechanism. The visual inspection mechanism performs double-sided visual inspection on the silicon steel sheets on the conveying mechanism. The conveying mechanism, comprising a first conveying section and a second conveying section, is used to transport the silicon steel sheets. The flipping mechanism, located between the first and second conveying sections, flips the silicon steel sheets from the first conveying section onto the second conveying section. The flipping mechanism includes a clamping plate, a rotating shaft, and a flipping drive component. One end of the clamping plate is fixedly mounted on the rotating shaft. The flipping drive component drives the rotating shaft to rotate, thereby flipping the clamping plate and the silicon steel sheets onto the second conveying section, thus achieving the flipping of the silicon steel sheets. The clamping plate has a rectangular receiving cavity with one open end, the opening of which faces the first conveying section for the silicon steel sheets to enter. The length of the rectangular receiving cavity is less than the length of the silicon steel sheets, allowing a portion of the silicon steel sheets to be exposed within the rectangular receiving cavity.

[0007] Furthermore, the length dimension of the rectangular receiving cavity is 75% to 90% of the dimension of the silicon steel sheet in that direction, and the dimensions in other directions match the dimensions of the silicon steel sheet in the corresponding direction, so as to limit the silicon steel sheet.

[0008] Furthermore, the flipping drive component includes a second lateral movement part, a rack and a gear. The second lateral movement part is used to drive the rack to move, and the rack and gear mesh to transmit power. The gear is fixedly connected to one end of the rotating shaft to drive the rotating shaft to rotate around its axis.

[0009] Furthermore, the second transverse movement part includes a horizontally arranged first cylinder, one end of which is connected to one end of a rack to drive the rack to move, and a limiting sleeve is provided on the other end to limit the stroke of the first cylinder.

[0010] Furthermore, the output end of the first conveying section is also provided with a blocking mechanism. The blocking mechanism is used to block the silicon steel sheet from entering the output end of the first conveying section. It includes two blocking units symmetrically arranged on both sides of the first conveying section. Each blocking unit includes a fourth drive motor and a stop bar. The fourth drive motor is used to drive the stop bar to rotate.

[0011] Furthermore, the end of the first conveying section away from the second conveying section is provided with a single-piece transfer mechanism and a workpiece conveying groove. The single-piece transfer mechanism is used to pick up silicon steel sheets from the workpiece conveying groove and place them on the first conveying section. The single-piece transfer mechanism includes a first horizontal movement part, a first vertical movement part, and a vibrating suction cup. The first horizontal movement part and the first vertical movement part are used to drive the vibrating suction cup to move in a vertical plane, so that the vibrating suction cup picks up silicon steel sheets between the workpiece conveying groove and the first conveying section.

[0012] Furthermore, the workpiece conveying trough extends upward at an angle away from the single-piece transfer mechanism, and has a silicon steel sheet receiving bin at the other end; the silicon steel sheet receiving bin includes a first receiving trough and a first lifting mechanism; the first lifting mechanism is offset to one side of the first receiving trough and extends into the interior of the first receiving trough, and is used to lift the silicon steel sheet inside the first receiving trough; the top of the first receiving trough is provided with a first pushing mechanism and a discharge port facing the workpiece conveying trough, and the first pushing mechanism is used to push the silicon steel sheet from the first receiving trough onto the workpiece conveying trough.

[0013] Furthermore, the first pushing mechanism includes a roller and a second drive motor. The roller is rotatably positioned directly above the first storage slot. The second drive motor and the roller are connected in a transmission relationship. Under the action of the first lifting mechanism, the roller can contact the silicon steel sheet at the top of the first storage slot. The second drive motor drives the roller to rotate, thereby pushing the silicon steel sheet at the top of the first storage slot outward.

[0014] Furthermore, the lower part of the roller extends into the interior of the first receiving slot.

[0015] Furthermore, a silicon steel sheet unloading bin is provided at the end of the second conveying section away from the first conveying section; the silicon steel sheet unloading bin includes a second receiving slot and a second lifting mechanism. The second receiving slot is used to receive silicon steel sheets falling from the second conveying section; the second lifting mechanism is offset to one side of the second receiving slot and extends into the interior of the second receiving slot to adjust the relative falling height of the silicon steel sheets inside the second receiving slot.

[0016] Compared with the prior art, the technical solution provided by this utility model has the following advantages: (1) This utility model is optimized by combining the structural characteristics of silicon steel sheets. Specifically, the clamping plate is provided with a rectangular receiving cavity with one end open, and its open end is set towards the first conveying section for the silicon steel sheet to enter. The length of the rectangular receiving cavity is less than the length of the silicon steel sheet, so that part of the silicon steel sheet is exposed in the rectangular receiving cavity. This detection device utilizes the relative size relationship between the rectangular receiving cavity in the clamping plate and the silicon steel sheet to be picked up, and can realize the flipping of the silicon steel sheet by combining it with the commonly used first and second conveying sections. During the flipping process, the rectangular receiving cavity can wrap and support the silicon steel sheet, and the clamping plate does not need to loosen the silicon steel sheet in advance before flipping to the position. The structure of the flipping mechanism is greatly simplified and the stability of the flipping is improved to a certain extent. Furthermore, the silicon steel sheet is visually inspected by a vision inspection mechanism. This inspection method has relatively low requirements for the uniformity of the position and posture of the silicon steel sheet on the conveyor belt in the second conveying section, so it is particularly suitable for using machine vision to inspect the surface quality of the silicon steel sheet.

[0017] (2) This utility model further optimizes the material feeding method of silicon steel sheets in the first conveying section. Specifically, the single-sheet transfer mechanism includes a first horizontal moving part, a first vertical moving part, and a vibrating suction cup. The first horizontal moving part and the first vertical moving part are used to drive the vibrating suction cup to move in the vertical plane so that the vibrating suction cup can pick up silicon steel sheets between the workpiece conveying groove and the first conveying section. The vibrating suction cup is used to separate silicon steel sheets that may be stuck together by high-frequency vibration. During the vibration process, only the uppermost layer can stably bear the suction force of the suction cup. The gap generated by the vibration of the lower silicon steel sheets destroys the static friction between the two, so that the lower silicon steel sheets cannot be adsorbed, thereby realizing the separation of the stuck silicon steel sheets. That is, the single vibrating suction cup in the single-sheet transfer mechanism can only pick up a single silicon steel sheet from the workpiece conveying groove at a time.

[0018] (3) This utility model further optimizes the design of the material receiving and unloading of the workpiece conveying trough after visual inspection. Specifically, the workpiece conveying trough extends upward at an incline, and a silicon steel sheet receiving bin is provided at the other end. The first lifting mechanism is used to lift the silicon steel sheet inside the first receiving trough. The top of the first receiving trough is provided with a first pushing mechanism and a discharge port facing the workpiece conveying trough. The first pushing mechanism is used to push the silicon steel sheet from the first receiving trough onto the workpiece conveying trough, thereby realizing automatic feeding of the workpiece conveying trough. Furthermore, a silicon steel sheet unloading bin is provided at the end of the second conveying section away from the first conveying section. The silicon steel sheet unloading bin includes a second receiving trough and a second lifting mechanism. The second receiving trough is used to collect the silicon steel sheet falling from the second conveying section. The second lifting mechanism is offset to one side of the second receiving trough and extends into the interior of the second receiving trough to adjust the falling height of the silicon steel sheet inside the second receiving trough, thereby realizing automatic unloading and collection of the silicon steel sheet after double-sided inspection. In summary, the automation level of this inspection device is improved. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of a silicon steel sheet double-sided quality inspection device based on an industrial camera, according to an embodiment of this utility model.

[0020] Figure 2 This is a three-dimensional structural schematic diagram of the silicon steel sheet double-sided quality inspection device based on an industrial camera, representing another embodiment of this utility model.

[0021] Figure 3 This is a schematic diagram of the planar structure of the silicon steel sheet double-sided quality inspection device based on an industrial camera, according to an embodiment of this utility model.

[0022] Figure 4 This is a partial three-dimensional structural diagram of the single-piece transfer mechanism in an embodiment of this utility model.

[0023] Figure 5 This is a partial three-dimensional structural diagram of the flipping mechanism in an embodiment of this utility model.

[0024] Figure 6 This is a partial three-dimensional structural diagram of the silicon steel sheet receiving hopper in an embodiment of this utility model.

[0025] Figure 7 This is a partial three-dimensional structural diagram of the silicon steel sheet receiving hopper from another perspective in an embodiment of this utility model.

[0026] Label Explanation: 100. Silicon steel sheet receiving hopper; 101. First drive motor; 102. Coupling; 103. Ball screw; 104. Slide table; 105. Storage slot; 106. Second drive motor; 107. Roller; 108. First upright plate; 109. Connecting rod; 200. Workpiece transfer groove; 300. Single-piece transfer mechanism; 301. First vertical moving part; 302. Vibrating suction cup; 303. First horizontal moving part; 400. Visual inspection mechanism; 401. First visual inspection camera; 402. Second visual inspection camera; 500. First conveyor section; 501. Fourth drive motor; 502. Stop bar; 600. Second conveyor section; 601. Rotating roller section; 602. Synchronous belt conveyor section; 700. Silicon steel sheet feeding bin; 701. Second vertical plate; 702. Second ball screw; 703. Second slide table; 704. Handle; 705. Second storage slot; 706. Third drive motor; 800. Tilting mechanism; 801. First cylinder; 802. Rack; 803. Gear; 804. Rotating shaft; 805. Support shaft seat; 806. Clamping plate; 807. Limiting sleeve; 808. Guide groove; 900. Support base. Detailed Implementation

[0027] To further understand the content of this utility model, a detailed description of this utility model will be provided in conjunction with the accompanying drawings and embodiments.

[0028] The structures, proportions, and sizes illustrated in the accompanying drawings are merely for illustrative purposes and to aid those skilled in the art in understanding and reading the invention. They are not intended to limit the scope of the invention and therefore have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to size, without affecting the effectiveness and purpose of the invention, should still fall within the scope of the technical content disclosed in this utility model. Furthermore, terms such as "upper," "lower," "left," "right," and "middle" used in this specification are merely for clarity and not intended to limit the scope of implementation. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of the invention's implementation.

[0029] Regarding the direction, the length direction referred to in this utility model refers to the direction of movement of the conveyor belt in the first conveying section 500, and the horizontal direction perpendicular to this direction of movement is called the width direction.

[0030] This embodiment provides a double-sided quality inspection device for silicon steel sheets based on an industrial camera, referencing... Figure 1 , Figure 2 , Figure 5 As shown, the device includes a visual inspection mechanism 400, a conveying mechanism, and a flipping mechanism 800. The visual inspection mechanism 400 is used to perform double-sided visual inspection on the silicon steel sheets on the conveying mechanism. The conveying mechanism is used to transport the silicon steel sheets and includes a first conveying section 500 and a second conveying section 600. The flipping mechanism 800 is disposed between the first conveying section 500 and the second conveying section 600 and is used to flip the silicon steel sheets on the first conveying section 500 onto the second conveying section 600. The flipping mechanism 800 includes a clamping plate 806 and a rotating... The shaft 804 and the flipping drive component are used to drive the shaft 804 to rotate, thereby flipping the clamping plate 806 and the silicon steel sheet onto the second conveying section 600, thus realizing the flipping of the silicon steel sheet. The clamping plate 806 is provided with a rectangular receiving cavity with one open end, the open end of which faces the first conveying section 500 for the silicon steel sheet to enter. The length of the rectangular receiving cavity is less than the length of the silicon steel sheet, so that part of the silicon steel sheet is exposed outside the rectangular receiving cavity.

[0031] In this testing device, the flipping mechanism uses the rectangular receiving cavity inside the clamping plate 806 to pick up the silicon steel sheet located on the first conveying section 500. The silicon steel sheet moves with the first conveying section 500. When it moves to the output end of the first conveying section 500, the silicon steel sheet enters the interior of the clamping plate 806 from the opening end of the rectangular receiving cavity. The flipping drive component drives the rotating shaft 804 to rotate, thereby causing the clamping plate 806 to flip 180°, flipping the silicon steel sheet inside the clamping plate 806 so that its other opposite side faces upward.

[0032] This solution utilizes the relative dimensional relationship between the rectangular receiving cavity inside the clamping plate 806 and the silicon steel sheet to be picked up. Combined with the commonly used first conveyor section 500 and second conveyor section 600, the silicon steel sheet can be flipped. During the flipping process, the rectangular receiving cavity can wrap and support the silicon steel sheet, which to a certain extent improves the stability of the flipping. The clamping plate 806 does not need to loosen the silicon steel sheet before it is flipped into place. After flipping, the portion of the silicon steel sheet exposed in the rectangular receiving cavity contacts the conveyor belt in the second conveyor section 600. The second conveyor section 600 pulls the exposed portion of the silicon steel sheet away from the rectangular receiving cavity, and then the silicon steel sheet continues to move with the second conveyor section 600. Compared to the flipping mechanism mentioned in the background art, this flipping method eliminates the need for a negative pressure adsorption component to ensure the stability of the silicon steel sheet during flipping, thus greatly simplifying the structure.

[0033] It should be noted that the present invention uses machine vision to inspect silicon steel sheets. This inspection method has relatively low requirements for the uniformity of the position and posture of the silicon steel sheets on the conveyor belt in the second conveying section 600 after they have been flipped. Therefore, machine vision is particularly suitable for inspecting the surface quality of silicon steel sheets.

[0034] Specifically, the length dimension of the rectangular receiving cavity is 75% to 90% of the dimension of the silicon steel sheet in that direction, and the dimensions in the remaining directions match the dimensions of the silicon steel sheet in the corresponding directions to limit the silicon steel sheet. As described above, the length of the silicon steel sheet exposed outside the rectangular receiving cavity is approximately 10% to 25% of the silicon steel sheet's length. After the clamping plate 806 flips to the side where the second conveying section 600 is located, this portion of the silicon steel sheet contacts the second conveying section 600, allowing the second conveying section 600 to move the silicon steel sheet away from the rectangular receiving cavity. The dimensions in the remaining directions of the rectangular receiving cavity match the dimensions of the silicon steel sheet in the corresponding directions, facilitating the positioning of the silicon steel sheet during the flipping process. In some specific embodiments, the height of the rectangular receiving cavity in the clamping plate 806 is slightly larger than the thickness of the silicon steel sheet; preferably, the height of the rectangular receiving cavity is approximately 3 mm greater than the thickness of the silicon steel sheet. The width dimension of the rectangular receiving cavity is slightly larger than the dimension of the silicon steel sheet in that direction; preferably, the width dimension of the rectangular receiving cavity is 3-5 mm greater than the width of the silicon steel sheet. By limiting the dimensions mentioned above, it is possible to effectively prevent the silicon steel sheets from shaking violently within the clamping plate 806, ensuring the stability of the silicon steel sheets during transmission, and reducing the degree of difference in position and orientation of the silicon steel sheets on the conveyor belt in the second transmission section 600 after flipping.

[0035] For more specific details, please refer to Figure 5 It is known that there is a gap along the length direction between the clamping plate 806 and the output end of the first conveyor section 500. When the clamping plate 806 is waiting for the silicon steel sheet to arrive at the output end of the first conveyor section 500, it can effectively avoid wear caused by direct contact between the bottom of the clamping plate 806 and the first conveyor section 500. Preferably, the bottom end of the rectangular receiving cavity in the clamping plate 806 is equal to or slightly lower than the height of the conveyor belt in the first conveyor section 500, so as to facilitate the smooth entry of the silicon steel sheet into the interior of the clamping plate 806.

[0036] The visual inspection mechanism 400 includes a first visual inspection camera 401 and a second visual inspection camera 402. The first visual inspection camera 401 and the second visual inspection camera 402 are respectively set above the first conveying section 500 and the second conveying section 600 via inspection brackets. The first visual inspection camera 401 and the second visual inspection camera 402 are used to inspect one side of the silicon steel sheet and the other opposite side after flipping, that is, to inspect the front and back sides of the silicon steel sheet.

[0037] The visual inspection mechanism 400 also includes detection light sources and corresponding image processing systems that are respectively matched with the first visual inspection camera 401 and the second visual inspection camera 402. The overall structure of the visual inspection mechanism 400 adopts existing technology and will not be described in detail here.

[0038] For more specific details, please refer to Figure 5As shown, the flipping drive component includes a second lateral movement part, a rack 802 and a gear 803. The second lateral movement part is used to drive the rack 802 to move. The rack 802 and the gear 803 mesh and drive each other. The gear 803 is fixedly connected to one end of the rotating shaft 804 and is used to drive the rotating shaft 804 to rotate around its axis.

[0039] The axis of the rotating shaft 804 is horizontally set and perpendicular to the dimension of the movement direction of the first conveying section 500. Both ends of the rotating shaft 804 are respectively installed in two spaced support shaft seats 805 through rolling bearings, and one end is set through the support shaft seat 805, and a gear 803 is sleeved on the outside of this end. The rack 802 is located below the gear 803. The second transverse part drives the rack 802 to move. Through the meshing transmission between the rack 802 and the gear 803, the rotating shaft 804 is driven to rotate, thereby causing the clamping plate 806 to flip.

[0040] In a preferred embodiment of the second lateral movement section, the second lateral movement section includes a horizontally arranged first cylinder 801. One end of the cylinder rod of the first cylinder 801 is connected to one end of the rack 802, and a limiting sleeve 807 is sleeved on the outside of the other end to limit the stroke of the first cylinder 801.

[0041] In order to improve the stability of the movement of the rack 802, a guide groove 808 is provided below the rack 802. The guide groove 808 has a groove parallel to the cylinder rod axis of the first cylinder 801. The rack 802 is nested in the groove of the guide groove 808 through a connecting block, thereby guiding the extension and retraction of the first cylinder 801 or the direction of movement of the rack 802.

[0042] To prevent the clamping plate 806 from overturning, a limiting sleeve 807 is provided at the other end of the cylinder rod in the first cylinder 801. When the limiting sleeve 807 contacts the cylinder body of the first cylinder 801, it restricts the lever in the first cylinder 801 from continuing to move, thereby limiting the flipping angle of the clamping plate 806.

[0043] As a preferred embodiment of the first conveying segment 500, the output end of the first conveying segment 500 is also provided with a blocking mechanism. The blocking mechanism is used to prevent the silicon steel sheet from entering the output end of the first conveying segment 500. It includes two blocking units symmetrically arranged on both sides of the first conveying segment 500. Each blocking unit includes a fourth drive motor 501 and a stop bar 502. The fourth drive motor 501 is used to drive the stop bar 502 to rotate.

[0044] Initially, the baffles 502 in the blocking units on both sides rotate toward the side where the second conveyor section 600 is located, with a relatively large distance between the two baffles 502. The specific operation process of this blocking mechanism is as follows: When there is a silicon steel sheet at the output end of the first conveyor section 500, the fourth drive motor 501 drives the baffles 502 to rotate away from the second conveyor section 600, and the distance between the two baffles 502 gradually decreases, that is, the two baffles 502 gradually move closer together. Correspondingly, the subsequent silicon steel sheets are blocked and cannot continue to move with the first conveyor section 500 to its output end. After the silicon steel sheet at the output end of the first conveyor section 500 leaves, the blocking mechanism allows the subsequent silicon steel sheets to pass in sequence. The specific process is as follows: When the silicon steel sheet at the output end of the first conveyor section 500 is flipped into place by the clamping plate 806 and the clamping plate 806 returns to its original position, the two baffles 502 move away from each other to make room for the subsequent silicon steel sheets to enter the output end of the first conveyor section 500. The timing of the blocking mechanism's release of subsequent silicon steel sheets can be automatically adjusted as needed to ensure that subsequent silicon steel sheets can stably enter the rectangular receiving cavity in the clamping plate 806.

[0045] As a preferred embodiment of the second transmission segment 600, refer to Figure 5 As shown, the second conveying section 600 is a split type, which also includes a rotating roller section 601 and a synchronous belt conveying section 602. The rotating roller section 601 is set close to the flipping mechanism 800. The rotating roller section 601 is driven by a motor. After the clamping plate 806 flips, the silicon steel sheet exposed in the rectangular receiving cavity comes into contact with the rotating roller section 601. Using the friction between the silicon steel sheet and the rotating roller section 601, the silicon steel sheet is driven to leave the rectangular receiving cavity and then moves to the synchronous belt conveying section 602 via the rotating roller section 601.

[0046] As an extension option, refer to Figure 2 , Figure 4 As shown, the first conveying section 500, located away from the second conveying section 600, is equipped with a single-piece transfer mechanism 300 and a workpiece transfer groove 200. The single-piece transfer mechanism 300 is used to pick up silicon steel sheets from the workpiece transfer groove 200 and place them onto the first conveying section 500. The single-piece transfer mechanism 300 includes a first horizontal movement part 303, a first vertical movement part 301, and a vibrating suction cup 302. The first horizontal movement part 303 and the first vertical movement part 301 drive the vibrating suction cup 302 to move in a vertical plane, so that the vibrating suction cup 302 picks up silicon steel sheets between the workpiece transfer groove 200 and the first conveying section 500.

[0047] Preferably, the first horizontal moving part 303 is mounted on the transfer bracket, the first vertical moving part 301 is mounted on the output end of the first horizontal moving part 303, and the vibration suction cup 302 is mounted on the output end of the first vertical moving part 301.

[0048] More preferably, the output end of the first vertical moving part 301 is provided with two symmetrically arranged vibrating suction cups 302, thereby improving the picking efficiency of the single-piece transfer mechanism 300.

[0049] The single-piece transfer mechanism 300 in this detection device is mainly used to solve the technical problem of silicon steel sheets that may stick together on the workpiece transfer groove 200. The single-piece transfer mechanism 300 uses a vibrating suction cup 302 to separate the silicon steel sheets that may stick together through high frequency. The process is as follows: When there are stacked silicon steel sheets, i.e., stuck silicon steel sheets, on the workpiece transfer groove 200, the vibrating suction cup 302 picks up the silicon steel sheet on the top layer through negative pressure and transmits high frequency vibration. The high frequency vibration causes the stacked silicon steel sheets to produce rapid micro-displacement. Each layer of silicon steel sheets in the stuck silicon steel sheets gains inertial force due to vibration. During the vibration process, only the top layer of silicon steel sheets can stably withstand the suction force of the suction cup and the gap created with the silicon steel sheets below, thereby destroying the static friction between the two, causing the silicon steel sheets below to be unable to be attracted, and thus achieving the separation of the stuck silicon steel sheets. That is, the single vibrating suction cup 302 in the single-piece transfer mechanism 300 can pick up a single silicon steel sheet from the workpiece transfer groove 200 in one go. The silicon steel sheet at the bottom of the stacked silicon steel sheets remains on the workpiece transfer groove 200, waiting for the next pick-up.

[0050] It should be noted that the single-piece transfer mechanism 300 can be implemented using various other structures. The method of using a vibrating suction cup 302 is relatively simple, and the sheet-like silicon steel sheet is particularly suitable for picking up by suction.

[0051] As a further expansion plan, refer to Figure 2 As shown, the workpiece conveying trough 200 extends upward at an angle away from the single-piece transfer mechanism 300, and the other end is provided with a silicon steel sheet receiving bin 100; the silicon steel sheet receiving bin 100 includes a first receiving trough 105 and a first lifting mechanism; the first lifting mechanism is offset to one side of the first receiving trough 105 and extends into the interior of the first receiving trough 105, and is used to lift the silicon steel sheet inside the first receiving trough 105; the top of the first receiving trough 105 is provided with a first pushing mechanism and has a discharge port facing the workpiece conveying trough 200, and the first pushing mechanism is used to push the silicon steel sheet from the first receiving trough 105 onto the workpiece conveying trough 200.

[0052] As can be seen from the above description, the workpiece conveying trough 200 is sloping, and the workpiece conveying trough 200 is provided with an inlet end corresponding to the outlet in the silicon steel sheet receiving bin 100. By utilizing the slope of the workpiece conveying trough 200 itself, the silicon steel sheet entering it is directed downward toward the side where the single sheet transfer mechanism 300 is located. The adaptability angle of the slope can be obtained through a limited number of experiments. This is existing technology and will not be described in detail here.

[0053] The silicon steel sheets are neatly stacked in the first storage groove 105. The inner cavity shape of the first storage groove 105 matches the shape of the silicon steel sheets. The inner cavity is made of a material with good wear resistance and anti-slip properties, which can ensure that the silicon steel sheets remain stable during the transportation process, avoid detection errors caused by shaking or displacement, and protect the surface quality of the silicon steel sheets.

[0054] Generally, in order to better support the bottom of the stacked silicon steel sheets inside the first storage groove 105, a support plate is provided at one end inside the first storage groove 105. The shape of the support plate matches the inner cavity of the first storage groove 105 and can slide vertically along the inner cavity of the first storage groove 105.

[0055] Among them, reference Figure 6 , Figure 7 As shown, the first lifting mechanism includes a first vertical plate 108, a first drive motor 101, and a ball screw 103. The first vertical plate 108 is vertically arranged. The housing of the first drive motor 101 is mounted on the first vertical plate 108. The ball screw 103 is rotatably mounted on the first vertical plate 108. The output end of the first drive motor 101 is connected to the ball screw 103 via a coupling 102. A slide table 104 is rotatably mounted on the ball screw 103 to convert the rotation of the ball screw 103 into movement. The side of the slide table 104 away from the first vertical plate 108 is connected to one end of a connecting rod 109. The side of the first storage groove 105 near the ball screw 103 is provided with an open groove corresponding to the connecting rod 109. The other end of the connecting rod 109 passes through the open groove and extends into the interior of the first storage groove 105, and a support plate inside the first storage groove 105 is fixedly connected. By cooperating with the open slide in the first storage groove 105, the silicon steel sheet inside the first storage groove 105 can be lifted, and the movement of the slide table 104 can be guided.

[0056] Furthermore, the first drive motor 101 is preferably a stepper motor.

[0057] To further improve the stability of the slide table 104 movement, a guide component can be added between the slide table 104 and the first vertical plate 108.

[0058] In other embodiments, the first pushing mechanism includes a roller 107 and a second drive motor 106. The roller 107 is rotatably positioned directly above the first storage groove 105. The second drive motor 106 and the roller 107 are connected in a transmission manner. Under the action of the first lifting mechanism, the roller 107 can contact the silicon steel sheet at the top of the first storage groove 105. The second drive motor 106 drives the roller 107 to rotate, thereby pushing the silicon steel sheet at the top of the first storage groove 105 outward.

[0059] The second drive motor 106 drives the roller 107 to rotate, and the friction between the roller 107 and the silicon steel sheet pushes the silicon steel sheet outward onto the workpiece conveying groove 200. Preferably, the outer surface of the roller 107 is covered with a rubber sleeve, which not only increases the friction between it and the silicon steel sheet to facilitate the removal of the silicon steel sheet, but also reduces damage to the surface of the silicon steel sheet.

[0060] The second drive motor 106 is preferably a servo motor.

[0061] To improve the stability of the roller 107 pushing the silicon steel sheet outward from the inside of the first storage groove 105, the lower part of the roller 107 extends into the inside of the first storage groove 105.

[0062] As a further preferred embodiment of any of the above embodiments, refer to Figure 3 As shown, a silicon steel sheet unloading bin 700 is provided at the end of the second conveying section 600 away from the first conveying section 500; the silicon steel sheet unloading bin 700 includes a second receiving groove 705 and a second lifting mechanism for receiving silicon steel sheets falling from the second conveying section 600; the second lifting mechanism is offset to one side of the second receiving groove 705 and extends into the interior of the second receiving groove 705 for adjusting the relative falling height of the silicon steel sheets inside the second receiving groove 705.

[0063] In a preferred embodiment of the second lifting mechanism, the second lifting mechanism includes a second vertical plate 701, a third drive motor 706, and a second ball screw 702. The second vertical plate 701 is vertically arranged, the housing of the third drive motor 706 is mounted on the second vertical plate 701, the second ball screw 702 is rotatably mounted on the second vertical plate 701, the output end of the third drive motor 706 is connected to the second ball screw 702 for transmission, and a second slide 703 is rotatably mounted on the second ball screw 702 to convert the rotation of the second ball screw 702 into movement. The side of the second slide 703 away from the second vertical plate 701 is fixedly connected to a support plate located inside the second storage groove 705 to drive the support plate to move up and down relative to the second storage groove 705.

[0064] The third drive motor 706 drives the second ball screw 702 to rotate, thereby causing the support plate located inside the second storage groove 705 to slide vertically relative to the second storage groove 705. This adjusts the height of the support plate inside the second storage groove 705, thus providing better support for the silicon steel sheets falling into the second storage groove 705. By setting the downward speed of the support plate driven by the third drive motor 706, the height of the support plate in the second storage groove 705 is dynamically adjusted to control the falling stroke of the silicon steel sheets inside the second storage groove 705, thereby reducing new damage or deformation caused by collisions between the silicon steel sheets inside the second storage groove 705.

[0065] Furthermore, to facilitate the removal of silicon steel sheets from the second storage slot 705, a clutch is added between the third drive motor 706 and one end of the second ball screw 702 to control the on / off connection of the transmission between them. The other end of the second ball screw 702 is connected to a handle 704, which drives the second ball screw 702 to rotate. When the clutch disengages the transmission between the third drive motor 706 and the second ball screw 702, rotating the handle 704 causes the support plate in the second storage slot 705 to move upward, thus facilitating the removal of the silicon steel sheets from the second storage slot 705.

[0066] Furthermore, the second storage tank 705 is also equipped with a transparent observation window on its side, through which the operator can clearly see the collection of silicon steel sheets inside the second storage tank 705.

[0067] Initially, the opening end of the clamping plate 806 of the flipping mechanism faces the first conveying section 500, waiting for the silicon steel sheet to enter the clamping plate 806. The overall working process of the device is as follows: The silicon steel sheets are neatly stacked in the first receiving groove 105. The first lifting mechanism drives the silicon steel sheets inside the first receiving groove 105 to move upward. The first pushing mechanism pushes the silicon steel sheets at the top of the first receiving groove 105 to the workpiece conveying groove 200. The silicon steel sheets move downward with the workpiece conveying groove 200. The single-piece transfer mechanism 300 picks up the silicon steel sheets from the output end of the workpiece conveying groove 200 and places them in the first conveying section 500. The silicon steel sheets continue to move with the first conveying section 500 to its output end, and then enter the clamping plate 806 of the flipping mechanism. The flipping drive component drives the clamping plate 806 to flip towards the second conveying section 600. The part of the silicon steel sheet exposed outside the rectangular receiving cavity contacts the second conveying section 600. The second conveying section 600 drives the silicon steel sheet to detach from the rectangular receiving cavity through this part, and then the silicon steel sheet moves with the second conveying section 600. The silicon steel sheet moves to its output end with the second conveyor section 600 and finally enters the silicon steel sheet unloading bin 700.

[0068] In this process, on the first conveying section 500, the vision inspection mechanism 400 inspects one side of the silicon steel sheet, and on the second conveying section 600, the vision inspection mechanism 400 inspects the other opposite side of the silicon steel sheet.

[0069] The present invention and its embodiments have been described above illustratively. This description is not restrictive, and the figures shown are only one embodiment of the present invention; the actual structure is not limited thereto. Therefore, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A double-sided quality inspection device for silicon steel sheets based on an industrial camera, characterized in that, The inspection device includes a vision inspection mechanism (400), a conveying mechanism and a flipping mechanism (800). The vision inspection mechanism (400) is used to perform double-sided vision inspection on the silicon steel sheet on the conveying mechanism. The conveying mechanism is used to transport silicon steel sheets and includes a first conveying section (500) and a second conveying section (600). The flipping mechanism (800) is disposed between the first conveying section (500) and the second conveying section (600) for flipping the silicon steel sheet on the first conveying section (500) onto the second conveying section (600); The flipping mechanism (800) includes a clamping plate (806), a rotating shaft (804), and a flipping drive component. One end of the clamping plate (806) is fixedly installed on the rotating shaft (804). The flipping drive component is used to drive the rotating shaft (804) to rotate so as to flip the clamping plate (806) and the silicon steel sheet onto the second conveying section (600), thereby realizing the flipping of the silicon steel sheet. The clamping plate (806) is provided with a rectangular receiving cavity with one end open. The opening end of the rectangular receiving cavity faces the first conveying section (500) for the silicon steel sheet to enter. The length of the rectangular receiving cavity is less than the length of the silicon steel sheet, so that part of the silicon steel sheet is exposed outside the rectangular receiving cavity.

2. The double-sided quality inspection device for silicon steel sheets based on an industrial camera according to claim 1, characterized in that, The length dimension of the rectangular receiving cavity is 75% to 90% of the dimension of the silicon steel sheet in that direction, and the dimensions in other directions match the dimensions of the silicon steel sheet in the corresponding direction, so as to limit the silicon steel sheet.

3. The double-sided quality inspection device for silicon steel sheets based on an industrial camera according to claim 1, characterized in that, The flipping drive component includes a second lateral movement part, a rack (802) and a gear (803). The second lateral movement part is used to drive the rack (802) to move. The rack (802) and the gear (803) mesh and drive each other. The gear (803) is fixedly connected to one end of the rotating shaft (804) and is used to drive the rotating shaft (804) to rotate around its axis.

4. The double-sided quality inspection device for silicon steel sheets based on an industrial camera according to claim 3, characterized in that, The second transverse part includes a horizontally arranged first cylinder (801), one end of the cylinder rod of the first cylinder (801) is connected to one end of the rack (802), and the other end is fitted with a limiting sleeve (807) to limit the stroke of the first cylinder (801).

5. The double-sided quality inspection device for silicon steel sheets based on an industrial camera according to any one of claims 1-4, characterized in that, The output end of the first conveying section (500) is also provided with a blocking mechanism. The blocking mechanism is used to block the silicon steel sheet from entering the output end of the first conveying section (500). It includes two blocking units symmetrically arranged on both sides of the first conveying section (500). Each blocking unit includes a fourth drive motor (501) and a stop bar (502). The fourth drive motor (501) is used to drive the stop bar (502) to rotate.

6. The double-sided quality inspection device for silicon steel sheets based on an industrial camera according to any one of claims 1-4, characterized in that, The first conveying section (500) is provided with a single-piece transfer mechanism (300) and a workpiece transfer groove (200) at the end away from the second conveying section (600). The single-piece transfer mechanism (300) is used to pick up silicon steel sheets from the workpiece transfer groove (200) and place them on the first conveying section (500). The single-piece transfer mechanism (300) includes a first horizontal transfer part (303), a first vertical transfer part (301), and a vibrating suction cup (302). The first horizontal transfer part (303) and the first vertical transfer part (301) are used to drive the vibrating suction cup (302) to move in a vertical plane so that the vibrating suction cup (302) can pick up silicon steel sheets between the workpiece transfer groove (200) and the first transfer section (500).

7. The double-sided quality inspection device for silicon steel sheets based on an industrial camera according to claim 6, characterized in that, The workpiece conveying trough (200) extends upward at an angle away from the single-piece transfer mechanism (300), and the other end is provided with a silicon steel sheet receiving hopper (100). The silicon steel sheet receiving hopper (100) includes a first receiving trough (105) and a first lifting mechanism; the first lifting mechanism is offset to one side of the first receiving trough (105) and extends into the interior of the first receiving trough (105) to drive the silicon steel sheet inside the first receiving trough (105) to lift; the top of the first receiving trough (105) is provided with a first pushing mechanism and a discharge port facing the workpiece conveying trough (200); the first pushing mechanism is used to push the silicon steel sheet from the first receiving trough (105) to the workpiece conveying trough (200).

8. The double-sided quality inspection device for silicon steel sheets based on an industrial camera according to claim 7, characterized in that, The first pushing mechanism includes a roller (107) and a second drive motor (106). The roller (107) is rotatably positioned directly above the first storage groove (105). The second drive motor (106) and the roller (107) are connected in transmission. Under the action of the first lifting mechanism, the roller (107) can contact the silicon steel sheet at the top of the first storage groove (105). The second drive motor (106) drives the roller (107) to push the silicon steel sheet at the top of the first storage groove (105) outward.

9. The double-sided quality inspection device for silicon steel sheets based on an industrial camera according to claim 8, characterized in that, The lower part of the roller (107) extends into the interior of the first storage slot (105).

10. The double-sided quality inspection device for silicon steel sheets based on an industrial camera according to any one of claims 1-4, characterized in that, The second conveying section (600) is provided with a silicon steel sheet feeding bin (700) at the end away from the first conveying section (500); The silicon steel sheet unloading bin (700) includes a second receiving groove (705) and a second lifting mechanism. The second receiving groove (705) is used to receive silicon steel sheets falling from the second conveying section (600). The second lifting mechanism is offset to one side of the second receiving groove (705) and extends into the interior of the second receiving groove (705) to adjust the relative falling height of the silicon steel sheets inside the second receiving groove (705).

Images