Appearance detection machine for neodymium-iron-boron magnet

Abstract

The utility model relates to the technical field of appearance detection equipment, in particular to an appearance detection machine for neodymium-iron-boron magnets, which comprises a feeding channel and a feeding channel, a feeding vibrating disc is arranged at a feeding port of the feeding channel, and a CCD (charge coupled device) detection device and an NG (natural gas) product collection device are sequentially arranged beside the feeding channel. An OK product collecting box is arranged at the tail end of the feeding channel; the CCD detection device comprises a support, a lifting plate and a driving mechanism are arranged on the support, the lifting plate is provided with a first CCD detection camera, a second CCD detection camera is arranged in the middle of the support, the NG product collecting device comprises a pushing mechanism and an NG product collecting box, the NG product collecting box is arranged on the other side of the feeding channel, the NG product collecting box and the pushing mechanism are oppositely arranged, and the driving mechanism is arranged on the pushing mechanism. According to the utility model, 360-degree appearance detection is carried out on the neodymium-iron-boron magnet through the first CCD detection camera and the second CCD detection camera, so that time and labor are saved, the detection efficiency is high, and the factory automation requirement is met.

Description

Technical Field

[0001] The utility model relates to the technical field of appearance detection equipment, in particular to an appearance detection machine for neodymium iron boron magnets. Background Art

[0002] Neodymium magnets, also known as neodymium iron boron magnets, are a general term for strong magnets. They are permanent magnets with the strongest magnetic force at room temperature to date. They are mainly used in electronics, electrical appliances, packaging, motors, toys, leather goods, automotive machinery, etc.

[0003] If the surface of the NdFeB magnet is worn, it will seriously affect its performance. Therefore, before the NdFeB magnet leaves the factory, the appearance of the product needs to be inspected to ensure the stability of the quality of the NdFeB magnet leaving the factory. At present, the appearance inspection method of NdFeB magnets mostly relies on manual inspection, which is time-consuming and labor-intensive, with low inspection efficiency and does not meet the requirements of factory automation. The existing inspection equipment uses a vibration plate to load the materials. During the loading process, adjacent NdFeB magnets are close together. When performing appearance inspection, the NdFeB magnets that are close together will have a blind spot in the inspection. Part of the appearance of the NdFeB magnet will be blocked by another NdFeB magnet. The CCD lens cannot detect the blind spot. In addition, the existing inspection equipment only has a single lens for inspection, which cannot effectively perform all-round inspection of the NdFeB magnet. The NdFeB magnet cannot be calibrated during the loading process, affecting the inspection quality.

[0004] Therefore, there is an urgent need for an appearance inspection machine for NdFeB magnets. Utility Model Content

[0005] The purpose of the utility model is to provide an appearance inspection machine for NdFeB magnets to address the shortcomings of the existing technology. The utility model can realize the misalignment between NdFeB magnets, ensure that the NdFeB magnets are separated during the loading process, and have no detection blind spots. The first CCD detection camera and the second CCD detection camera are used to perform 360-degree appearance inspection on the NdFeB magnets. The inspection efficiency is high, and the posture of the NdFeB magnets can be calibrated. The number of OK products can be counted to meet the requirements of factory automation.

[0006] The present utility model is realized through the following technical scheme: a visual inspection machine for NdFeB magnets, comprising a loading channel and a feeding channel, a loading vibration disk is provided at the feeding port of the loading channel, the feeding channel is located directly below the discharging port of the loading channel, a CCD detection device and an NG product collection device are sequentially provided on the sides of the feeding channel, and an OK product collection box is provided at the end of the feeding channel; the CCD detection device comprises a bracket, a lifting plate and a driving mechanism for driving the lifting plate to move up and down along the Z axis are provided on the bracket, the lifting plate is provided with a first CCD detection camera, a second CCD detection camera is provided in the middle of the bracket, the first CCD detection camera and the second CCD detection camera are vertically arranged, the NG product collection device comprises a pushing mechanism and an NG product collection box, the NG product collection box is provided on the other side of the feeding channel, and the NG product collection box is arranged opposite to the pushing mechanism.

[0007] Preferably, the pushing mechanism includes a fixed platform, an air cylinder is provided above the fixed platform, and the air cylinder is provided with a blow needle.

[0008] Preferably, the feeding channel is provided with a feeding groove.

[0009] Preferably, enclosure plates are provided on both sides of the feeding channel.

[0010] Preferably, the driving mechanism is a screw transmission mechanism.

[0011] Preferably, a counting device is further provided at the end of the feeding channel, and the counting device includes a first sensor and a second sensor, and the first sensor and the second sensor are respectively located on both sides of the feeding channel.

[0012] Preferably, the bottom of the OK product collection box and the bottom of the NG product collection box are both provided with flexible cushions.

[0013] The beneficial effects of the present invention are as follows: the NdFeB magnets are first loaded into the loading channel through the loading vibration plate, and then fall into the feeding channel through the loading channel. The loading channel and the feeding channel of the present invention are both conveyor belt mechanisms, and the misalignment of the NdFeB magnets can be achieved by adjusting the transmission speed of the loading channel and the feeding channel, as well as the time when the NdFeB magnets fall from the loading channel into the feeding channel; when the NdFeB magnets pass through the CCD detection device, the first CCD detection camera and the second CCD detection camera take pictures of the NdFeB magnets for detection, and the first CCD detection camera detects whether there are scratches on the surface of the NdFeB magnets, and whether there are any peripheral defects. Whether there is a cloak and the size, the second CCD detection camera detects the flatness of the NdFeB magnet, and the OK products flow directly into the end of the feeding channel and fall into the OK product collection box. NG products will be forced to fall into the NG product collection box when passing through the pushing mechanism; the utility model can realize the misalignment between NdFeB magnets, and ensure that the NdFeB magnets are separated during the feeding process, without detection blind spots, and perform 360-degree appearance inspection of the NdFeB magnet through the first CCD detection camera and the second CCD detection camera, with high detection efficiency, and can calibrate the posture of the NdFeB magnet, and can count the number of OK products to meet the requirements of factory automation. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model.

[0015] Figure 2 It is a schematic diagram of the three-dimensional structure of the CCD detection device of the utility model.

[0016] Figure 3 This is a schematic structural diagram of the NG product collection device of the present invention.

[0017] Figure 4 It is a schematic diagram of the cross-sectional structure of the loading channel and the feeding channel of the present invention.

[0018] Figure 5 It is a structural schematic diagram of the counting device of the present utility model. DETAILED DESCRIPTION

[0019] The following is combined with Figure 1 To the attached Figure 5 , and specific implementation methods are used to further illustrate the utility model.

[0020] like Figures 1 to 2As shown, a visual inspection machine for NdFeB magnets comprises a loading channel 1 and a feeding channel 2, wherein a loading vibration plate 3 is provided at the feeding port of the loading channel 1, and the feeding channel 2 is located directly below the discharging port of the loading channel 1, and a CCD detection device 4 and an NG product collection device 5 are sequentially provided on the sides of the feeding channel 2, and an OK product collection box 6 is provided at the end of the feeding channel 2; the CCD detection device 4 comprises a bracket 41, on which a lifting plate 42 and a driving mechanism 43 for driving the lifting plate 42 to move up and down along the Z axis are provided, the lifting plate 42 is provided with a first CCD detection camera 44, and a second CCD detection camera 45 is provided in the middle of the bracket 41, and the first CCD detection camera 44 and the second CCD detection camera 45 are arranged vertically, and the NG product collection device 5 comprises a pushing mechanism 51 and an NG product collection box 52, and the NG product collection box 52 is provided on the other side of the feeding channel 2, and the NG product collection box 52 is arranged opposite to the pushing mechanism 51.

[0021] In this embodiment, the NdFeB magnet is first loaded into the loading channel 1 through the loading vibration plate 3, and then falls into the feeding channel 2 through the loading channel 1. The loading channel 1 and the feeding channel 2 of the utility model are both conveyor belt mechanisms. By adjusting the different transmission speeds of the loading channel 1 and the feeding channel 2, as well as the time when the NdFeB magnet falls from the loading channel 1 to the feeding channel 2, the misalignment between the NdFeB magnets can be achieved; when the NdFeB magnet passes through the CCD detection device 4, the first CCD detection camera 44 and the second CCD detection camera 45 take pictures of the NdFeB magnet for detection. The first CCD inspection camera 44 detects whether there are scratches on the surface of the NdFeB magnet, whether there is a cloak around it, and its size. The second CCD inspection camera 45 detects the flatness of the NdFeB magnet. OK products flow directly into the end of the feeding channel 2 and fall into the OK product collection box 6. NG products will be forced to fall into the NG product collection box 52 when passing through the pushing mechanism 51. The utility model uses the first CCD inspection camera 44 and the second CCD inspection camera 45 to perform 360-degree appearance inspection on the NdFeB magnet, which saves time and effort, has high inspection efficiency, and meets factory automation requirements.

[0022] like Figure 3 As shown, in this embodiment, the pushing mechanism 51 includes a fixed platform 511, and an air cylinder 512 is provided above the fixed platform 511. The air cylinder 512 is provided with a blow needle 513, and the blow needle 513 blows air to drop NG products into the NG product collection box 52.

[0023] like Figure 4As shown, in this embodiment, the feeding channel 2 is provided with a feeding groove 21. When the NdFeB magnet is being fed on the loading channel 1, it is in a horizontal state. The NdFeB magnet falls from the loading channel 1 into the feeding channel 2 in a vertical state. The bottom of the NdFeB magnet is located in the feeding groove 21. In this embodiment, the depth of the feeding groove 21 is one fifth of the length of the NdFeB magnet, which will not affect the NG products from falling into the NG product collection box 52.

[0024] In this embodiment, enclosure plates 11 are provided on both sides of the feeding channel 1 to prevent the NdFeB magnets from falling from the feeding channel 1 .

[0025] In this embodiment, the driving mechanism 43 is a screw transmission mechanism, which has precise positioning.

[0026] like Figure 5 As shown, in this embodiment, a counting device 7 is further provided at the end of the feeding channel 2, and the counting device 7 includes a first sensor 71 and a second sensor 72. The first sensor 71 and the second sensor 72 are respectively located on both sides of the feeding channel 2. An induction infrared ray is formed between the first sensor 71 and the second sensor 72. When OK products pass through the induction infrared ray, the system will automatically count.

[0027] In this embodiment, the bottom of the OK product collection box 6 and the bottom of the NG product collection box 52 are both provided with flexible cushions to prevent the NdFeB magnets from being damaged.

[0028] The above contents are only preferred embodiments of the present invention. For ordinary technicians in this field, according to the concept of the present invention, there may be changes in the specific implementation methods and application scope. The content of this specification should not be understood as limiting the present invention.

Claims

1. An appearance inspection machine for NdFeB magnets, characterized by: The material collecting device comprises a loading channel and a feeding channel, wherein a loading vibration disk is provided at the feeding port of the loading channel, the feeding channel is located directly below the discharging port of the loading channel, a CCD detection device and an NG product collecting device are sequentially provided on the sides of the feeding channel, and an OK product collection box is provided at the end of the feeding channel; the CCD detection device comprises a bracket, a lifting plate and a driving mechanism for driving the lifting plate to move up and down along the Z axis are provided on the bracket, the lifting plate is provided with a first CCD detection camera, a second CCD detection camera is provided in the middle of the bracket, the first CCD detection camera and the second CCD detection camera are vertically arranged, the NG product collection device comprises a pushing mechanism and an NG product collection box, the NG product collection box is arranged on the other side of the feeding channel, and the NG product collection box is arranged opposite to the pushing mechanism; the feeding channel is provided with a feeding groove; a counting device is also provided at the end of the feeding channel, the counting device comprises a first sensor and a second sensor, and the first sensor and the second sensor are respectively located on both sides of the feeding channel.

2. The appearance inspection machine for NdFeB magnets according to claim 1, characterized in that: The pushing mechanism comprises a fixed platform, an air cylinder is arranged above the fixed platform, and the air cylinder is provided with a blow needle.

3. The appearance inspection machine for NdFeB magnets according to claim 1, characterized in that: Enclosures are provided on both sides of the feeding channel.

4. The appearance inspection machine for NdFeB magnets according to claim 1, characterized in that: The driving mechanism is a screw transmission mechanism.

5. The appearance inspection machine for NdFeB magnets according to claim 1, characterized in that: The bottom of the OK product collection box and the bottom of the NG product collection box are both provided with flexible cushions.

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