Magnetic declination testing device

Abstract

The utility model relates to the technical field of magnetic declination detection, in particular to a magnetic declination testing device which comprises a machine frame, a magnetic pole shaft detector arranged at the upper end of the machine frame, a placing table arranged inside the magnetic pole shaft detector, a fixing claw arranged at the lower end of the placing table, a lifting plate arranged at the upper end of a transverse moving plate, and a transverse moving plate arranged at the lower end of the transverse moving plate. The transverse moving plate is arranged at the upper end of the rack, the upper end of the magnetic pole shaft detector is provided with a mounting table, the upper end of the mounting table is movably provided with a laser head, one side of the magnetic pole shaft detector is provided with an image collector, one side of the image collector is provided with a swing arm, the front end of the swing arm is provided with a suction cup, and the upper end of the rack is provided with a conveying belt. According to the utility model, the laser head is designed, the position of the magnetic pole shaft detected by the magnetic pole shaft detector is marked, and the magnetic declination of the magnetic steel is calculated by matching with the image collector, so that the magnetic steel products are quickly screened.

Description

Technical Field

[0001] The utility model relates to the technical field of magnetic declination detection, in particular to a magnetic declination testing device. Background Art

[0002] The magnetic declination of a permanent magnet refers to the declination of the final magnetization vector direction of the permanent magnet. During the magnetic orientation forming process of the permanent magnet, the orientation direction of the product and the orientation magnetic field are not parallel, resulting in magnetic declination. The existence of magnetic declination causes the non-magnetization direction of the magnet to generate a magnetic field, forming a stray magnetic field. With the continuous deepening of the application of permanent magnets, magnetic declination has become an important factor affecting the performance of precision magnetic devices. Therefore, magnetic declination has become an important indicator for measuring the performance of permanent magnets, and the measurement of magnetic declination has received more and more attention.

[0003] The existing magnetic deflection detection device can accurately measure the offset angle, screen out qualified products, demagnetize and re-magnetize unqualified products, and conduct on-line detection until the angle standard is met. For magnetic steel products, the smaller the angle between the keyway and the magnetic pole axis, the better the quality of the magnetic steel. However, in some cases, the asymmetric position of the keyway is also one of the factors affecting the magnetic deflection detection, which is difficult to observe with the naked eye. For these products, even after magnetization, they cannot meet the requirements of qualified products. In actual production, these scrapped products are often mixed in with qualified products and reworked products, which has a certain impact on the overall qualified rate of the products.

[0004] Therefore, a magnetic declination testing device is proposed. Utility Model Content

[0005] The utility model aims to provide a magnetic deflection angle testing device to solve the problem that the magnetic deflection angle test results of some magnetic steel products mentioned in the above background technology meet the standards, but the key slots are asymmetrical and cannot be screened out.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a magnetic declination angle testing device, comprising a frame, a magnetic pole axis detector is arranged at the upper end of the frame, a placing table is arranged inside the magnetic pole axis detector, a fixing claw is arranged at the lower end of the placing table, the fixing claw is arranged at the upper end of the lifting plate, the lifting plate is arranged at the upper end of the transverse plate, the transverse plate is arranged at the upper end of the frame, a mounting table is arranged at the upper end of the magnetic pole axis detector, a laser head is movably arranged at the upper end of the mounting table, an image collector is arranged at one side of the magnetic pole axis detector, a swing arm is arranged at one side of the image collector, a suction cup is arranged at the front end of the swing arm, and a conveyor belt is arranged at the upper end of the frame.

[0007] Preferably, a driving frame is arranged at the upper end of the frame, and a transverse plate is movably arranged at the upper end of the driving frame, and the transverse plate is translated by a lead screw driven by a motor installed inside the driving frame.

[0008] Preferably, a second cylinder is arranged inside the transverse plate, and a lifting plate is arranged at the upper end of the second cylinder.

[0009] Preferably, a sliding rod is provided at the upper end of the lifting plate, a fixing claw is slidably provided on the outer side of the sliding rod, a third screw is provided inside the fixing claw, the third screw is provided at the upper end of the lifting plate, and a second motor is provided at one end of the third screw.

[0010] Preferably, two groups of first cylinders are arranged at the upper end of the frame, a placing table is arranged on one side of each of the first cylinders, and the middle part of the placing table is through-arranged.

[0011] Preferably, a moving table is provided at the upper end of the mounting table, a slide groove is provided at one end of the moving table, a first screw is provided at the other end of the moving table, the first screw is provided at the upper end of the mounting table, a driving motor is provided at one end of the first screw, a second screw is provided at the upper end of the moving table, the second screw is rotatably provided at the upper end of the laser head, and a first motor is provided at one end of the second screw.

[0012] Preferably, a slider is provided at the front end of the swing arm, a propulsion cylinder is provided on one side of the slider, the propulsion cylinder is provided at the upper end of the swing arm, a third cylinder is provided at the upper end of the slider, and a suction cup is provided at the lower end of the third cylinder.

[0013] Preferably, three groups of conveyor belts are provided, and the three groups of conveyor belts transport scrapped, reworked and normal materials separately, and a controller is provided at the upper end of the frame.

[0014] Beneficial effects of the utility model:

[0015] 1. The utility model designs a laser head to mark the position of the magnetic pole axis detected by the magnetic pole axis detector, cooperates with the image collector to calculate the magnetic declination of the magnetic steel, and quickly screens the magnetic steel products.

[0016] 2. The utility model designs a swing arm and cooperates with a suction cup to place the magnetic steel on the corresponding conveyor belt, and transports the scrapped, qualified and reworked magnetic steel products separately, avoiding the scrapped magnetic steel from being mixed into the reworked and qualified products. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only for the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 This is an overall stereogram of a magnetic declination testing device according to an embodiment of the utility model;

[0019] Figure 2 A magnetic declination test device according to an embodiment of the present invention Figure 1 Sectional view at AA;

[0020] Figure 3 A magnetic declination test device according to an embodiment of the present invention Figure 1 Sectional view at the middle BB;

[0021] Figure 4 A magnetic declination test device according to an embodiment of the present invention Figure 1 A magnified schematic diagram of the structure at C in the middle;

[0022] Figure 5 A magnetic declination test device according to an embodiment of the present invention Figure 3 Enlarged schematic diagram of the structure at point D in the middle.

[0023] The markings in the figure are: 1. frame; 2. magnetic pole axis detector; 3. mounting table; 4. first screw; 5. moving table; 6. second screw; 7. first motor; 8. first cylinder; 9. placing table; 10. lifting plate; 11. fixed claw; 12. third screw; 13. second motor; 14. sliding rod; 15. driving frame; 16. transverse plate; 17. second cylinder; 18. laser head; 19. image acquisition device; 20. swing arm; 21. slider; 22. third cylinder; 23. suction cup; 24. conveyor belt; 25. controller. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with specific embodiments.

[0025] It should be noted that, unless otherwise defined, the technical terms or scientific terms used in the present invention should be understood by people with ordinary skills in the field to which the present invention belongs. The words "first", "second" and similar words used in the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. "Include" or "comprise" and similar words mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and similar words are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0026] like Figures 1 to 5As shown, a specific embodiment of the utility model provides a magnetic declination testing device, including a frame 1, a magnetic pole axis detector 2 is arranged at the upper end of the frame 1, a placing table 9 is arranged inside the magnetic pole axis detector 2, a fixing claw 11 is arranged at the lower end of the placing table 9, the fixing claw 11 is arranged at the upper end of a lifting plate 10, the lifting plate 10 is arranged at the upper end of a transverse plate 16, the transverse plate 16 is arranged at the upper end of the frame 1, a mounting table 3 is arranged at the upper end of the magnetic pole axis detector 2, a laser head 18 is movably arranged at the upper end of the mounting table 3, an image collector 19 is arranged on one side of the magnetic pole axis detector 2, a swing arm 20 is arranged on one side of the image collector 19, a suction cup 23 is arranged at the front end of the swing arm 20, and a conveyor belt 24 is arranged at the upper end of the frame 1.

[0027] By adopting the above technical scheme, the utility model is designed with a laser head 18, and the magnetic pole axis detector 2 uploads the detected data to the controller 25. The position of the magnetic pole axis of the magnetic steel is calculated by an algorithm and the running trajectory is simulated to control the movement of the laser head 18, and a line is burned on the surface of the magnetic steel. The magnetic steel is moved to the detection station through the transverse plate 16, and the image information taken by the image collector 19 is uploaded to the controller 25, the keyway position and the burned line are identified, and the offset calculation of the angle is performed. The magnetic steel is classified into qualified, reworked and scrapped products according to whether the calculated angle and the keyway opening position are symmetrical, and the magnetic steel is placed on the corresponding conveyor belt 24 through the movement of the swing arm 20 and the movement and lifting of the suction cup 23.

[0028] Specifically, Figure 1 and Figure 2 As shown, a driving frame 15 is disposed at the upper end of the frame 1 , and a transverse plate 16 is movably disposed at the upper end of the driving frame 15 . The transverse plate 16 is driven by a motor screw installed inside the driving frame 15 to achieve translation.

[0029] By adopting the above technical solution, the transverse moving plate 16 can translate and transport the magnetic steel to connect with each workstation.

[0030] Specifically, Figure 2 As shown, a second cylinder 17 is disposed inside the transverse plate 16 , and a lifting plate 10 is disposed at the upper end of the second cylinder 17 .

[0031] By adopting the above technical solution, the second cylinder 17 is telescopically operated to realize the lifting and lowering of the lifting plate 10 on the upper end of the transverse plate 16, so as to cooperate with the fixed claw 11 to automatically remove the detected magnetic steel from the placement table 9.

[0032] Specifically, Figure 5 As shown, a slide rod 14 is provided at the upper end of the lifting plate 10, a fixing claw 11 is slidably provided on the outer side of the slide rod 14, a third screw rod 12 is provided inside the fixing claw 11, the third screw rod 12 is provided at the upper end of the lifting plate 10, and a second motor 13 is provided at one end of the third screw rod 12.

[0033] By adopting the above technical solution, the upper end of the fixing claw 11 moves into the central circular hole of the magnetic steel, and the third screw 12 is driven to rotate by the second motor 13 to realize the movement of the fixing claw 11 to both sides, thereby firmly clamping the magnetic steel.

[0034] Specifically, Figure 4 As shown, two groups of first cylinders 8 are arranged at the upper end of the frame 1, and a placement platform 9 is arranged on one side of the first cylinder 8, and the middle part of the placement platform 9 is through-set.

[0035] By adopting the above technical solution, the first cylinder 8 contracts and the placement table 9 moves to both ends. The magnet placed on the placement table 9 falls onto the fixed claw 11 due to gravity. In conjunction with the contraction of the second cylinder 17, the magnet moves downward to avoid the magnet being too high and hindering the lateral movement to the detection station.

[0036] Specifically, Figure 4 As shown, a moving platform 5 is provided at the upper end of the mounting platform 3, a slide groove is provided at one end of the moving platform 5, a first screw 4 is provided at the other end of the moving platform 5, the first screw 4 is provided at the upper end of the mounting platform 3, a driving motor is provided at one end of the first screw 4, a second screw 6 is provided at the upper end of the moving platform 5, the second screw 6 is rotatably provided at the upper end of the laser head 18, and a first motor 7 is provided at one end of the second screw 6.

[0037] By adopting the above technical solution, the first screw 4 is rotated to achieve the forward and backward translation of the movable table 5, and the second screw 6 is rotated to achieve the left and right translation of the laser head 18, so that the laser head 18 can move along the X-axis and Y-axis to mark the magnetic pole axis of the magnet.

[0038] Specifically, Figure 1 and Figure 2 As shown, a slider 21 is provided at the front end of the swing arm 20, a propulsion cylinder is provided on one side of the slider 21, the propulsion cylinder is provided at the upper end of the swing arm 20, a third cylinder 22 is provided at the upper end of the slider 21, and a suction cup 23 is provided at the lower end of the third cylinder 22.

[0039] By adopting the above technical solution, the thrust cylinder can push the slider 21 to slide on the swing arm 20, and the third cylinder 22 can realize the lifting and lowering of the suction cup 23 through telescopic operation, so as to suck up the magnetic steel and place it on the conveyor belt 24.

[0040] Specifically, Figure 1 As shown, three groups of conveyor belts 24 are provided, and the three groups of conveyor belts 24 transport scrapped, reworked and normal materials separately. A controller 25 is provided at the upper end of the frame 1.

[0041] By adopting the above technical solution, in some cases, the angle between the magnetic pole axis and the keyway meets the requirements of qualified products, but the position of the keyway is offset, which is considered as scrap material. The scrapped products can be screened out and scrapped with the image collector 19 to avoid rework and magnetization.

[0042] Those skilled in the art should understand that the discussion of any of the above embodiments is merely illustrative and is not intended to imply that the scope of the present invention (including the claims) is limited to these examples. In line with the concept of the present invention, the technical features in the above embodiments or in different embodiments may be combined, the steps may be implemented in any order, and there are many other variations of the different aspects of the present invention as described above, which are not provided in detail for the sake of simplicity.

[0043] The utility model is intended to cover all such substitutions, modifications and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the utility model should be included in the scope of protection of the utility model.

Claims

1. A magnetic declination testing device, comprising a frame (1), characterized in that: A magnetic pole axis detector (2) is arranged at the upper end of the frame (1), a placement table (9) is arranged inside the magnetic pole axis detector (2), a fixing claw (11) is arranged at the lower end of the placement table (9), the fixing claw (11) is arranged at the upper end of a lifting plate (10), the lifting plate (10) is arranged at the upper end of a transverse plate (16), and the transverse plate (16) is arranged at the upper end of the frame (1); The upper end of the magnetic pole axis detector (2) is provided with a mounting platform (3), the upper end of the mounting platform (3) is movably provided with a laser head (18), one side of the magnetic pole axis detector (2) is provided with an image collector (19), one side of the image collector (19) is provided with a swing arm (20), the front end of the swing arm (20) is provided with a suction cup (23), and the upper end of the frame (1) is provided with a conveyor belt (24).

2. A magnetic declination testing device according to claim 1, characterized in that: A driving frame (15) is arranged at the upper end of the frame (1), and a transverse plate (16) is movably arranged at the upper end of the driving frame (15). The transverse plate (16) is driven by a motor screw rod installed inside the driving frame (15) to achieve translation.

3. A magnetic declination testing device according to claim 2, characterized in that: A second cylinder (17) is arranged inside the transverse plate (16), and a lifting plate (10) is arranged at the upper end of the second cylinder (17).

4. A magnetic declination testing device according to claim 3, characterized in that: A sliding rod (14) is arranged at the upper end of the lifting plate (10), a fixing claw (11) is slidably arranged on the outer side of the sliding rod (14), a third screw rod (12) is arranged inside the fixing claw (11), the third screw rod (12) is arranged at the upper end of the lifting plate (10), and a second motor (13) is arranged at one end of the third screw rod (12).

5. The magnetic declination testing device according to claim 1, characterized in that: Two groups of first cylinders (8) are arranged at the upper end of the frame (1), a placement platform (9) is arranged on one side of each of the first cylinders (8), and the middle part of the placement platform (9) is through-set.

6. A magnetic declination testing device according to claim 1, characterized in that: A moving platform (5) is arranged at the upper end of the mounting platform (3), a slide groove is arranged at one end of the moving platform (5), a first screw rod (4) is arranged at the other end of the moving platform (5), the first screw rod (4) is arranged at the upper end of the mounting platform (3), a driving motor is arranged at one end of the first screw rod (4), a second screw rod (6) is arranged at the upper end of the moving platform (5), the second screw rod (6) is rotatably arranged at the upper end of the laser head (18), and a first motor (7) is arranged at one end of the second screw rod (6).

7. A magnetic declination testing device according to claim 1, characterized in that: A slider (21) is provided at the front end of the swing arm (20), a propulsion cylinder is provided on one side of the slider (21), the propulsion cylinder is provided at the upper end of the swing arm (20), a third cylinder (22) is provided at the upper end of the slider (21), and a suction cup (23) is provided at the lower end of the third cylinder (22).

8. A magnetic declination testing device according to claim 1, characterized in that: The conveyor belts (24) are provided in three groups, and the three groups of conveyor belts (24) transport scrapped, reworked and normal materials separately. A controller (25) is provided at the upper end of the frame (1).

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