Halbach magnetic assembly bonding detection device and method

Abstract

The invention discloses a Halbach magnetic assembly bonding detection device and method. The device comprises a magnet conveying channel and a detection camera. The magnet conveying channel extends front and back and is provided with an arched part, each Halbach magnetic assembly is in a strip shape formed by sequentially bonding a plurality of magnets front and back, the multiple Halbach magnetic assemblies are sequentially magnetically attracted front and back to form a column, and the magnet conveying channel is used for enabling the column of Halbach magnetic assemblies to be conveyed forwards along the magnet conveying channel so as to sequentially pass through the arched part; the arching part is used for upwards supporting the middle part of the Halbach magnetic assembly passing through the arching part, so that the front end and the rear end of the Halbach magnetic assembly are warped and suspended; the detection camera is used for shooting the Halbach magnetic assembly located at the arched part. The method is applied to detection. The bonding detection efficiency of the Halbach magnetic assembly is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of magnetic assembly defect detection, in particular to a Halbach magnetic assembly bonding detection device and method. BACKGROUND

[0002] The Halbach magnetic assembly is formed by bonding multiple magnets, and after bonding, the bonding effect usually needs to be inspected to avoid poor opening of the adhesive. Since the adhesive joint after bonding is usually small, it is difficult to identify the poor opening of the adhesive by direct observation, and therefore the current operation requires the operator to pinch the two ends of the Halbach magnetic assembly to apply a bending force to the Halbach magnetic assembly, and then observe whether the adhesive joint and the magnets are separated to accurately identify the poor opening of the adhesive.

[0003] Since the above-mentioned manual detection process is low in efficiency, how to improve the bonding detection efficiency of the Halbach magnetic assembly needs to be solved. SUMMARY

[0004] The purpose of the present application is to provide a Halbach magnetic assembly bonding detection device and method, which solves the technical problem of how to improve the bonding detection efficiency of the Halbach magnetic assembly.

[0005] To achieve the above-mentioned purpose, the solution of the present application is: a Halbach magnetic assembly bonding detection device, comprising a magnet conveying channel and a detection camera; The magnet conveying channel extends forward and backward and has an arch portion, each Halbach magnetic assembly is formed by bonding multiple magnets in sequence in front and back into a long strip shape, multiple Halbach magnetic assemblies are sequentially magnetically attracted to form a row, and the magnet conveying channel is used to convey the row of Halbach magnetic assemblies forward along it to pass through the arch portion in sequence; The arch portion is used to lift the middle part of the Halbach magnetic assembly passing through it upward, so that the front and rear ends of the Halbach magnetic assembly are raised and suspended; The detection camera is used to take pictures of the Halbach magnetic assembly located at the arch portion.

[0006] Further, the magnet conveying channel comprises an uphill section and a downhill section, and the arch portion is a connecting transition position between the uphill section and the downhill section, so that the Halbach magnetic assembly at the arch portion is magnetically attracted forward and downward by the Halbach magnetic assembly located on its front side, and magnetically attracted backward and downward by the Halbach magnetic assembly located on its rear side.

[0007] Further, the uphill section extends in an arc shape with the middle part concave downward.

[0008] Further, a pushing rod assembly is further included, a discharging port is formed on one side wall of the magnet conveying channel, the discharging port is located at the position of the arch portion, the pushing rod assembly is located at the opposite side of the discharging port and faces the discharging port, and the pushing rod assembly is used for inserting into the magnet conveying channel to push the Halbach magnetic assembly at the arch portion into the discharging port or withdrawing from the magnet conveying channel to avoid the Halbach magnetic assembly passing through the arch portion.

[0009] Further, a controller is further arranged, the controller is communicatively connected with the detection camera and the pushing rod assembly, and is used for judging whether the Halbach magnetic assembly photographed by the detection camera has the open glue or not, so as to control the pushing rod assembly to push the Halbach magnetic assembly into the discharging port when the open glue exists.

[0010] Further, each Halbach magnetic assembly is composed of three magnets, and the arch portion supports the magnet in the middle upward to make the magnets on both sides suspended.

[0011] Further, the detection camera is located on the left side or the right side of the magnet conveying channel to make the shooting direction perpendicular to the bending surface of the Halbach magnetic assembly.

[0012] Further, the arch portion is arc-shaped and arches upward.

[0013] A Halbach magnetic assembly bonding detection method, the method comprises the following steps: S1, a row of Halbach magnetic assemblies are transmitted forward along a magnet conveying channel; S2, when one Halbach magnetic assembly reaches an arch portion, the transmission of the row of Halbach magnetic assemblies is stopped; S3, a detection camera photographs the Halbach magnetic assembly at the arch portion to identify whether the Halbach magnetic assembly has the open glue or not, and the Halbach magnetic assembly is taken out when the open glue exists; S4, the transmission of the row of Halbach magnetic assemblies is continued along the magnet conveying channel until the next Halbach magnetic assembly reaches the arch portion; S5, steps S2-S4 are repeated.

[0014] Further, in the step S2, when each Halbach magnetic assembly is at the arch portion, the middle part is supported upward by the arch portion, the front end bears the force to swing downward under the action of gravity and the magnetic adsorption of the front Halbach magnetic assembly, and the rear end bears the force to swing downward under the action of gravity and the magnetic adsorption of the rear Halbach magnetic assembly, so as to amplify the open glue between the adjacent magnets. In the step S3, the open glue between the adjacent magnets of the Halbach magnetic assembly is identified by whether the glue joint width exceeds a preset range, and / or the front and rear lengths exceed a preset range, and / or the bending angle exceeds a preset range, and / or whether the Halbach magnetic assembly is disconnected.

[0015] After the above scheme, the beneficial effects of the present application are that the magnet conveying channel extends before and after and has an arch part, each Halbach magnetic assembly is sequentially bonded into a long strip by a plurality of magnets before and after, a plurality of Halbach magnetic assemblies are sequentially magnetically attracted to form a column, the magnet conveying channel is used to convey the column of Halbach magnetic assemblies along it to sequentially pass through the arch part, the arch part is used to lift the middle part of the passing Halbach magnetic assembly upward to make the front and rear ends of the Halbach magnetic assembly cant and hang, when each Halbach magnetic assembly is at the arch part, the middle part is supported upward by the arch part, the front end is subjected to the force of turning downward under the action of gravity and the magnetic attraction of the front side Halbach magnetic assembly, and the rear end is subjected to the force of turning downward under the action of gravity and the magnetic attraction of the rear side Halbach magnetic assembly, to achieve the same effect as bending by hand, so as to enlarge the opening defect between adjacent magnets, at this time, the Halbach magnetic assembly at the arch part is photographed by the detection camera, the opening defect of the Halbach magnetic assembly is more easily identified, and the adhesion detection efficiency of the Halbach magnetic assembly is improved. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 is a perspective view of the present application; Figure 2 is a perspective view of the present application in which the upper cover is separated from the base to expose the magnet conveying channel; Figure 3 is Figure 2 is a local enlarged view of A in the middle; Figure 4 is a schematic view of three Halbach magnetic assemblies magnetically attracted to form a column; Figure 5 is a schematic view of one of the three Halbach magnetic assemblies in the middle of the arch part; Figure 6 is a perspective view of the present application in which the upper cover is removed and there is no Halbach magnetic assembly in the magnet conveying channel; Figure 7 is a schematic view of the communication connection of the controller; Figure 8 is a schematic view of the Halbach magnetic assemblies arranged in a straight line and magnetically attracted to each other; Figure 9 is a schematic view of the Halbach magnetic assemblies magnetically attracted to each other in the arch part; Figure 10 is a schematic view of the Halbach magnetic assemblies magnetically attracted to each other in the arch part.

[0017] Label explanation: 1-magnet conveying channel, 2-detection camera, 3-arched part, 4-Halbach magnetic assembly, 5-magnet, 6-uphill section, 7-downhill section, 8-pushing rod assembly, 9-discharge port, 10-controller, 11-upper cover, 12-pushing rod, 13-pushing rod telescopic cylinder, 14-base. DETAILED DESCRIPTION

[0018] The application will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0019] Embodiments of the present application will be described below with reference to the accompanying drawings. It should be noted that the present application can be implemented in different forms, and is not limited to the embodiments described herein. The embodiments are provided to make the present disclosure thorough and complete, and to fully convey the scope of the present application to those skilled in the art.

[0020] In the claims, specification, and above drawings of the present application, unless otherwise expressly specified, the orientation words such as the terms "center", "transverse", "longitudinal", "horizontal", "vertical", "top", "bottom", "inner", "outer", "upper", "lower", "front", "back", "left", "right", "clockwise", "counterclockwise", etc. indicate the orientation or positional relationship only for the purpose of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation or be constructed and operated in a particular orientation, so it cannot be understood as limiting the specific protection scope of the present application.

[0021] The present application provides a kind of Halbach magnetic assembly bonding detection device, such as Figures 1-7As shown, it comprises a magnet conveying channel 1 and a detection camera 2; the magnet conveying channel 1 extends front and back and has an arch part 3, each Halbach magnetic assembly 4 is formed into a long strip by sequentially bonding a plurality of magnets 5 front and back, and a plurality of Halbach magnetic assemblies 4 are sequentially magnetically attracted to form a row (i.e. the rear end of the Halbach magnetic assembly 4 on the front side is magnetically attracted to the front end of the Halbach magnetic assembly 4 on the back side), the magnet conveying channel 1 is used to convey the row of Halbach magnetic assemblies 4 forward along it to sequentially pass through the arch part 3; the arch part 3 is used to lift the middle part of each Halbach magnetic assembly 4 passing through it upward to make the front and back ends of the Halbach magnetic assembly 4 cantilevered, and then when each Halbach magnetic assembly 4 is at the arch part 3, the middle part is supported upward by the arch part 3, the front end is subjected to a force that makes it swing downward and forward under the action of gravity and the magnetic attraction of the Halbach magnetic assembly 4 on the front side, and the rear end is subjected to a force that makes it swing downward and backward under the action of gravity and the magnetic attraction of the Halbach magnetic assembly 4 on the back side, so as to amplify the poor opening of the adjacent magnets 5; in particular, each Halbach magnetic assembly 4 in this embodiment is composed of three magnets 5, and the arch part 3 lifts the magnet 5 in the middle upward to make the magnets 5 on both sides cantilevered; the arch part 3 is arc-shaped and arches upward; the detection camera 2 is used to take pictures of the Halbach magnetic assembly 4 at the arch part 3 to identify poor opening, which can be manual identification after shooting, of course, it is preferred to automatically identify the product by the camera, and those skilled in the art can also achieve it by combining with the conventional technical means in the field, and it will not be described further in this embodiment.

[0022] In a specific embodiment, the magnet conveying channel 1 is in the form of a groove with an open top, which is provided on the base 14, and the left and right ends of the Halbach magnetic assembly 4 abut against the left and right side walls of the magnet conveying channel 1, and the bottom side wall of the magnet conveying channel 1 supports the Halbach magnetic assembly 4, and further comprises a cover 11 covering the top side of the magnet conveying channel 1 to prevent the magnets from falling out of the magnet conveying channel 1 during conveying.

[0023] In a more preferred and specific embodiment, the magnet conveying channel 1 comprises an uphill section 6 and a downhill section 7, and the arch part 3 is a connecting transition position between the uphill section 6 and the downhill section 7, so that the Halbach magnetic assembly 4 at the arch part 3 is magnetically attracted forward and downward by the Halbach magnetic assembly 4 on the front side thereof and magnetically attracted backward and downward by the Halbach magnetic assembly 4 on the back side thereof, to ensure that the Halbach magnetic assembly 4 at the arch part 3 forms a sufficient angle with the Halbach magnetic assemblies 4 on the front and back sides thereof, forms a sufficient magnetic attraction force component, and provides sufficient bending force to the Halbach magnetic assembly 4 at the arch part 3. More preferably, the uphill section 6 extends in an arc shape with a concave middle part to reversely bend the Halbach magnetic assembly 4 before detection, which is more conducive to identifying defects during detection.

[0024] In order to be able to detect the poor opening of the glue and directly remove the poor Halbach magnetic assembly 4, the preferred embodiment further comprises a pushing rod assembly 8, and a discharge port 9 is formed on one side wall of the magnet conveying channel 1, and the discharge port 9 is located at the position of the arch portion 3, and the pushing rod assembly 8 is located on the opposite side of the discharge port 9 and faces the discharge port 9, used for inserting into the magnet conveying channel 1, pushing the Halbach magnetic assembly 4 at the arch portion 3 into the discharge port 9, or withdrawing from the magnet conveying channel 1 to avoid the Halbach magnetic assembly 4 passing through the arch portion 3. The specific pushing rod assembly 8 comprises a push rod 12 and a telescopic cylinder 13, and the push rod 12 is used for inserting and withdrawing from the magnet conveying channel 1, and the telescopic cylinder 13 is used for driving the push rod 12 to act.

[0025] In order to be able to automatically remove the poor Halbach magnetic assembly 4 when the poor opening of the glue is identified, the more preferred embodiment further comprises a controller 10, which can be any existing programmable controller such as mcu or plc, and the controller 10 is communicatively connected with the detection camera 2 and the pushing rod assembly 8, used for determining whether the Halbach magnetic assembly 4 photographed by the detection camera 2 has the poor opening of the glue, so as to control the pushing rod assembly 8 to push the Halbach magnetic assembly 4 into the discharge port 9 when the poor opening of the glue exists.

[0026] In order to make the automatic identification more efficient and reduce the operation pressure of the controller 10 in the identification process, the poor opening between the adjacent magnets 5 of the Halbach magnetic assembly 4 is identified by the width of the glue joint of the Halbach magnetic assembly 4 exceeding the preset range, and / or the length in front and back exceeding the preset range, and / or the bending angle exceeding the preset range. Since the poor opening is enlarged, the poor opening can also be identified by these easily measured parameters. In addition to the above accurate measurement values, it is also easier to identify the poor opening according to whether the Halbach magnetic assembly 4 is disconnected (as shown in Figures 8-10 More preferably, the detection camera 2 is located on the left side or the right side of the magnet conveying channel 1, so that the shooting direction is perpendicular to the bending surface of the Halbach magnetic assembly 4, thereby more easily identifying the width of the glue joint, the length of the Halbach magnetic assembly 4 and the bending angle size of the Halbach magnetic assembly 4.

[0027] A Halbach magnetic assembly bonding detection method is applied to the Halbach magnetic assembly bonding detection device as described above, and the method comprises the following steps: S1, conveying a row of Halbach magnetic assemblies 4 along the magnet conveying channel 1; S2, when one Halbeke magnetic assembly 4 reaches the arch 3, stop the continuous transmission of the one line of Halbeke magnetic assemblies 4; when each Halbeke magnetic assembly 4 is in the arch 3, the middle part is supported upward by the arch 3, while the front end is subjected to the force of swinging downward and forward under the action of gravity and the magnetic adsorption of the front Halbeke magnetic assembly 4, and the rear end is subjected to the force of swinging downward and backward under the action of gravity and the magnetic adsorption of the rear Halbeke magnetic assembly 4, so as to enlarge the poor opening between adjacent magnets 5; S3, by detecting the Halbeke magnetic assembly 4 located at the arch 3 by the camera 2, identify whether the Halbeke magnetic assembly 4 has poor opening, if there is poor opening, take out the Halbeke magnetic assembly 4; preferably, by the width of the joint of the Halbeke magnetic assembly 4 exceeding the preset range, and / or the length in front and back exceeding the preset range, and / or the bending angle exceeding the preset range, and / or whether it is disconnected (such as Figures 8-10 , to identify the poor opening between adjacent magnets 5 of the Halbeke magnetic assembly 4; and in the preferred embodiment, after the automatic determination by the controller 10, the defective product is automatically pushed out by the pushing rod assembly 8; S4, continue to transmit the one line of Halbeke magnetic assemblies 4 along the magnet conveying channel 1 until the next Halbeke magnetic assembly 4 reaches the arch 3.

[0028] The above is only the preferred embodiment of the present application, and is not a limitation on the design of the present application. Any equivalent changes made according to the key design of the present application fall within the scope of protection of the present application.

Claims

1. A Heilbeck magnetic component bonding detection device, characterized in that: It includes a magnet conveying channel (1) and a detection camera (2); The magnet transport channel (1) extends back and forth and has an arch (3). Each Heilbeck magnetic component (4) is made of multiple magnets (5) bonded together in a long strip. Multiple Heilbeck magnetic components (4) are magnetically attracted to form a row. The magnet transport channel (1) is used to transport the row of Heilbeck magnetic components (4) forward along it so that they pass through the arch (3) in sequence. The arched part (3) is used to support the middle part of the Heilbeck magnetic assembly (4) passing through it, so that the front and rear ends of the Heilbeck magnetic assembly (4) are raised and suspended in the air; The detection camera (2) is used to photograph the Heilbeck magnetic assembly (4) located at the arch (3).

2. The Heilbeck magnetic component bonding detection device as described in claim 1, characterized in that: The magnet conveying channel (1) includes an uphill section (6) and a downhill section (7). The arched part (3) is the connecting transition position between the uphill section (6) and the downhill section (7), so that the front part of the Heilbeck magnetic assembly (4) at the arched part (3) is magnetically attracted forward and downward by the Heilbeck magnetic assembly (4) located on its front side, and the rear part is magnetically attracted backward and downward by the Heilbeck magnetic assembly (4) located on its rear side.

3. The Heilbeck magnetic component bonding detection device as described in claim 2, characterized in that: The uphill section (6) extends in an arc shape with a concave center.

4. The Heilbeck magnetic component bonding detection device as described in claim 1, characterized in that: It also includes a push rod assembly (8), on one side wall of the magnet conveying channel (1) a discharge port (9) is formed, the discharge port (9) is located at the arch (3), the push rod assembly (8) is located on the opposite side of the discharge port (9), directly facing the discharge port (9), and is used to insert into the magnet conveying channel (1) to push the Heilbeck magnetic assembly (4) located at the arch (3) into the discharge port (9), or to exit the magnet conveying channel (1) to avoid the Heilbeck magnetic assembly (4) passing through the arch (3).

5. The Heilbeck magnetic component bonding detection device as described in claim 4, characterized in that: A controller (10) is also provided, which is communicatively connected to the detection camera (2) and the push rod assembly (8) to determine whether the Heilbeck magnetic component (4) captured by the detection camera (2) has delamination, so that when delamination exists, the push rod assembly (8) is controlled to push the Heilbeck magnetic component (4) into the discharge port (9).

6. The Heilbeck magnetic component bonding detection device as described in claim 1, characterized in that: Each Heilbeck magnetic assembly (4) consists of three magnets (5), with the arch (3) supporting the middle magnet (5) upwards, leaving the magnets (5) on both sides suspended.

7. The Heilbeck magnetic component bonding detection device as described in claim 1, characterized in that: The detection camera (2) is located on the left or right side of the magnet delivery channel (1) so that the shooting orientation is perpendicular to the bending surface of the Heilbeck magnetic assembly (4).

8. The Heilbeck magnetic component bonding detection device as described in claim 1, characterized in that: The arched part (3) arches upward in an arc shape.

9. A method for detecting the adhesion of Heilbeck magnetic components, characterized in that, The method using the Heilbeck magnetic component bonding detection device as described in any one of claims 1-8 includes the following steps: S1. A column of Heilbeck magnetic components (4) is conveyed forward along the magnet conveying channel (1); S2. When a Hellbeck magnetic assembly (4) reaches the arch (3), stop that column of Hellbeck magnetic assemblies (4) from continuing to move forward; S3. Use the detection camera (2) to take a picture of the Heilbeck magnetic component (4) located at the arch (3) to identify whether the Heilbeck magnetic component (4) has poor glue separation. If there is poor glue separation, remove the Heilbeck magnetic component (4). S4. Continue to move the column of Heilbeck magnetic components (4) forward along the magnet conveying channel (1) until the next Heilbeck magnetic component (4) reaches the arch (3). S5. Repeat steps S2-S4.

10. The method for detecting the bonding of Heilbeck magnetic components as described in claim 9, characterized in that: In step S2, when each Heilbeck magnetic component (4) is in the arched part (3), the middle part is supported upward by the arched part (3), while the front end is subjected to the force of swinging forward and downward under the action of gravity and the magnetic attraction of the front Heilbeck magnetic component (4), and the rear end is subjected to the force of swinging backward and downward under the action of gravity and the magnetic attraction of the rear Heilbeck magnetic component (4), thereby amplifying the poor glue separation between adjacent magnets (5); In step S3, the poor glue separation between adjacent magnets (5) of the Heilbeck magnetic assembly (4) is identified by whether the glue seam width of the Heilbeck magnetic assembly (4) exceeds the preset range, and / or the front and rear length exceeds the preset range, and / or the bending angle exceeds the preset range, and / or whether it is broken.

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