Neodymium-iron-boron magnet anti-corrosion insulating coating testing and positioning device

Abstract

The utility model relates to a neodymium-iron-boron magnet anti-corrosion insulation coating test positioning device which comprises a base, a protective cover is clamped on the base, a positioning plate is clamped on the base, a magnet is placed at the top end of the positioning plate, a test pull head is placed at the top end of the magnet, a positioning structure is arranged on the protective cover, and the test pull head is arranged at the top end of the positioning plate. The positioning structure comprises connecting pieces and guide columns, the two connecting pieces are fixedly connected to the inner side of the protective cover, the guide columns are fixedly connected to the connecting pieces, the same pressing plate is slidably connected between the two guide columns, screw rods are fixedly connected to the connecting pieces, and the two screw rods penetrate through the pressing plate. A rotary knob is in threaded connection with the screw rod, the rotary knob abuts against a pressing plate, and the pressing plate abuts against the top end of the testing pull head. The device has the advantages that the testing pull head can be positioned in the glue solidification process, deflection of the testing pull head is avoided, and the accuracy of subsequent experiments is guaranteed.

Description

TECHNICAL FIELD

[0001] The application relates to the field of test positioning devices, in particular to a test positioning device for a corrosion-resistant insulating coating of a Nd-Fe-B magnet. BACKGROUND

[0002] The Nd-Fe-B magnet is generally subjected to corrosion-resistant insulating coating electroplating treatment. The electroplating treatment can prevent the surface of the Nd-Fe-B magnet from being oxidized, corroded and worn, which helps to prolong the service life of the Nd-Fe-B magnet. After the magnet electroplating is completed, the magnet coating bonding force needs to be tested to determine whether the coating meets the requirements. The test method is generally to set the magnet on the product positioning plate through glue dispensing, and set a test puller in cooperation, then position the product positioning plate through the positioning device and cooperate with the universal testing machine to test the bonding force. After bonding, the test puller and the surface of the magnet product need to be perpendicular to ensure that the bonding force test result is accurate.

[0003] However, since the glue has a certain flowability and needs a long time to completely solidify, the test puller may be inclined during the glue solidification process, so that when the test puller is tested in cooperation with the universal testing machine, the vertical upward force during the pulling movement cannot be guaranteed, thereby affecting the accuracy of the bonding force test. Therefore, there is room for improvement. CONTENT OF THE INVENTION

[0004] In order to position the test puller during the glue solidification process and avoid the inclination of the test puller, the accuracy of the subsequent test is ensured. The application provides a test positioning device for a corrosion-resistant insulating coating of a Nd-Fe-B magnet.

[0005] The application provides a test positioning device for a corrosion-resistant insulating coating of a Nd-Fe-B magnet, which adopts the following technical scheme:

[0006] A test positioning device for a corrosion-resistant insulating coating of a Nd-Fe-B magnet, comprising a base, a protective cover is clamped on the base, a positioning plate is clamped on the base, a magnet is placed at the top end of the positioning plate, a test puller is placed at the top end of the magnet, a positioning structure is arranged on the protective cover, the positioning structure comprises a connecting piece and a guide column, two connecting pieces are fixedly connected to the inner side of the protective cover, a guide column is fixedly connected to the connecting piece, a same pressing plate is slidably connected between the two guide columns, a screw rod is fixedly connected to the connecting piece, two screw rods penetrate the pressing plate, a knob is threadedly connected to the screw rod, the knob abuts against the pressing plate, and the pressing plate abuts against the top end of the test puller.

[0007] By adopting the technical scheme, one side of the magnet is bonded between the positioning plate and the adhesive, and the other side is bonded between the test puller and the adhesive. After the preliminary bonding is completed, the positioning plate is placed on the base, and then the protective cover can be moved to be clamped between the base. The protective cover can shield the test puller during the curing of the adhesive, avoiding displacement of the test puller due to impact, thereby improving the stability of use. Then, the pressing plate can be in contact with the top end of the test puller. When the pressing plate is in contact with the top end of the test puller, the two knobs can be rotated to be in close contact with the pressing plate, thereby positioning the test puller between the pressing plate and the test puller. This effectively avoids the test puller from being skewed during the curing of the adhesive, thereby ensuring the accuracy of subsequent experiments.

[0008] Optionally, the pressing plate is parallel to the positioning plate, and the screw rod is parallel to the guide column.

[0009] By adopting the technical scheme, the orientation of the pressing plate can be limited by the two guide columns, so that it is always parallel to the positioning plate. Therefore, when it is in contact with the test puller, it can always ensure that the test puller is in a vertical state with the magnet.

[0010] Optionally, the base is provided with a placement groove, and the positioning plate is located inside the placement groove.

[0011] By adopting the technical scheme, the positioning plate can be positioned by the placement groove.

[0012] Optionally, the base is provided with a positioning groove, and the bottom end of the protective cover is located inside the positioning groove.

[0013] By adopting the technical scheme, the protective cover can be positioned by the positioning groove.

[0014] Optionally, two fans are installed on both sides of the protective cover, and the two fans are symmetrically arranged about the middle part of the protective cover.

[0015] By adopting the technical scheme, the speed of air circulation around the adhesive can be accelerated, and the curing time of the adhesive can be shortened.

[0016] Optionally, the horizontal cross section of the protective cover as a whole is in the shape of a "mouth" character, and the vertical cross section of the bottom end of one side of the protective cover is in the shape of an L.

[0017] By adopting the technical scheme, the protection range of the protective cover is increased, and better protection effect is achieved.

[0018] Optionally, two rotating shafts are rotatably connected to the base, and a stop block is fixedly connected to the rotating shaft. The stop block is in contact with the bottom end of the protective cover.

[0019] By adopting the technical scheme, the two blocks resist the bottom end of the protective cover through rotating the rotating shafts, so that the protective cover is prevented from being separated from the base, thereby improving the stability in use.

[0020] Optionally, the blocks are perpendicular to the rotating shafts, and the two rotating shafts are symmetrically arranged about the middle part of the base.

[0021] By adopting the technical scheme, the two rotating shafts and the two blocks are used in cooperation, so that the two sides of the protective cover are simultaneously pressed, thereby improving the installation stability.

[0022] In summary, the present application has at least one of the following beneficial technical effects:

[0023] 1. In use, one side of the magnet is bonded between the positioning plate and the adhesive, and the other side is bonded between the test puller and the adhesive. After the preliminary bonding is completed, the positioning plate is placed on the base, and then the protective cover is moved to be clamped with the base.

[0024] 2. The protective cover can shield the test puller during the curing process of the adhesive, preventing the test puller from being displaced due to impact, thereby improving the stability in use, and then the pressing plate can be pressed against the top end of the test puller.

[0025] 3. The two guide columns are arranged to limit the orientation of the pressing plate, so that it is always parallel to the positioning plate. Therefore, when it is pressed against the test puller, it can always ensure that the test puller is vertical to the magnet.

[0026] 4. When the pressing plate is pressed against the top end of the test puller, the two knobs can be rotated simultaneously to press against the pressing plate, thereby pressing the pressing plate against the test puller to position the test puller. This effectively prevents the test puller from being skewed during the curing process of the adhesive, thereby ensuring the accuracy of subsequent experiments. Moreover, the test puller presses the magnet, eliminating the need for the arm to continuously press the magnet, thereby reducing the workload of the operator. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 It is a schematic view of the overall structure of the present application.

[0028] Figure 2 It is a schematic view of the connection between the connecting piece and the guide column of the present application.

[0029] Figure 3 It is Figure 2 the enlarged schematic view of part A shown in the figure.

[0030] Figure 4The utility model discloses a connecting structure diagram of the pivot and the stopper

[0031] Figure 5 It is the vertical section view of the middle part of the whole device of the utility model.

[0032] Fig. 1, base; 2, protective cover; 3, positioning structure; 301, connecting piece; 302, guide column; 303, pressing plate; 304, screw rod; 305, knob; 4, positioning plate; 5, magnet; 6, test puller; 7, fan; 8, pivot; 9, stopper; 10, placing groove; 11, positioning groove. PREFERRED EMBODIMENT

[0033] The following will be combined with the drawings Figure 1-5 The application is further described in detail.

[0034] The embodiment of the application discloses a neodymium-iron-boron magnet anticorrosion insulation plating layer test positioning device. Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 A neodymium-iron-boron magnet anticorrosion insulation plating layer test positioning device includes a base 1, the base 1 is clamped with a protective cover 2, the base 1 is clamped with a positioning plate 4, the top end of the positioning plate 4 is placed with a magnet 5, the top end of the magnet 5 is placed with a test puller 6, the protective cover 2 is provided with a positioning structure 3, the positioning structure 3 includes a connecting piece 301 and a guide column 302, the inner side of the protective cover 2 is fixedly connected with two connecting pieces 301, the connecting piece 301 is fixedly connected with a guide column 302, the same pressing plate 303 is slidably connected between the two guide columns 302, the connecting piece 301 is fixedly connected with a screw rod 304, the two screw rods 304 penetrate the pressing plate 303, the screw rod 304 is threadedly connected with a knob 305, the knob 305 abuts the pressing plate 303, the pressing plate 303 abuts the top end of the test puller 6, the pressing plate 303 is parallel to the positioning plate 4, and the screw rod 304 is parallel to the guide column 302. In the process of using, one side of the magnet 5 is bonded between the positioning plate 4 by glue, and the other side is bonded between the test puller 6 by glue, when the preliminary bonding is completed, the positioning plate 4 is placed on the base 1, then the pressing plate 303 can abut the top end of the test puller 6;

[0035] By setting two guide columns 302, the direction of the pressing plate 303 can be limited, so that it is always parallel to the positioning plate 4, so when it abuts the test puller 6, it can always ensure that the test puller 6 and the magnet 5 are in a vertical state, and by adjusting the height of the pressing plate 303 through the screw rod 304, it can also cope with magnets of different thicknesses;

[0036] When the pressure plate 303 contacts the top of the test slider 6, the two knobs 305 can be rotated simultaneously to make it press against the pressure plate 303, so that the pressure plate 303 and the test slider 6 are pressed against each other to achieve the positioning of the test slider 6, effectively avoiding the test slider 6 from tilting during the glue solidification process, thereby ensuring the accuracy of subsequent experiments.

[0037] Reference Figure 4 , the base 1 is provided with a placement groove 10, the positioning plate 4 is located inside the placement groove 10, the base 1 is provided with a positioning groove 11, and the bottom end of the protective cover 2 is located inside the positioning groove 11;

[0038] The positioning plate 4 can be positioned by placing the groove 10, and then the protective cover 2 can be moved to engage with the base 1. The protective cover 2 can be positioned by the positioning groove 11, and the two blocks 9 can be used to resist the bottom end of the protective cover 2 by rotating the rotating shaft 8, thereby preventing the protective cover 2 from detaching from the base 1.

[0039] Reference Figure 1 , two fans 7 are installed on both sides of the protective cover 2, and the two fans 7 are symmetrically arranged about the middle of the protective cover 2;

[0040] The protective cover 2 can shield the test slider 6 during the solidification process of the glue to prevent the test slider 6 from being displaced by impact, thereby improving the stability of use. In the process of solidification of the glue, the two fans 7 can be started. Under the action of the fans 7, the speed of air flow around the glue can be increased, thereby accelerating the solidification speed of the glue and effectively improving the practicality.

[0041] Reference Figure 1 and Figure 3 The horizontal cross-section of the protective cover 2 as a whole is in the shape of a Chinese character "口", and the vertical cross-section of the bottom end of one side of the protective cover 2 is in the shape of an L. The base 1 is rotatably connected to two rotating shafts 8, and the rotating shafts 8 are fixedly connected to the stoppers 9. The stoppers 9 are in contact with the bottom end of the protective cover 2, and the stoppers 9 are perpendicular to the rotating shafts 8. The two rotating shafts 8 are symmetrically arranged about the middle of the base 1.

[0042] The protective cover 2 can be blocked by the stopper 9 to prevent the protective cover 2 from being separated from the base 1 .

[0043] The implementation principle of the neodymium iron boron magnet corrosion-resistant insulation coating test positioning device is that one side of the magnet 5 is bonded between the positioning plate 4 and the adhesive, and the other side is bonded between the test pull head 6 and the adhesive. After the preliminary bonding is completed, the positioning plate 4 is placed on the base 1. The positioning plate 4 can be positioned by the placement groove 10. Then the protective cover 2 can be moved to be clamped between the base 1. The protective cover 2 can be positioned by the positioning groove 11. The two stop blocks 9 can resist the bottom end of the protective cover 2 by rotating the shaft 8, so that the protective cover 2 can be prevented from being separated from the base 1. The test pull head 6 can be shielded by the protective cover 2 during the curing process of the adhesive, so that the test pull head 6 is prevented from being displaced due to impact, thereby improving the stability of use. Then the pressing plate 303 can be in contact with the top end of the test pull head 6. The orientation of the pressing plate 303 can be limited by the two guide columns 302, so that it is always parallel to the positioning plate 4. Therefore, when it is in contact with the test pull head 6, the test pull head 6 and the magnet 5 can always be in a vertical state. When the pressing plate 303 is in contact with the top end of the test pull head 6, the two knobs 305 can be simultaneously rotated to make them tightly contact with the pressing plate 303. By controlling the rotation angle of the two knobs 305, the pressure intensity on both sides can be accurately realized, so that the pressing plate 303 and the test pull head 6 are tightly contacted to realize the positioning of the test pull head 6. The test pull head 6 is effectively prevented from being skewed during the curing process of the adhesive, thereby ensuring the accuracy of subsequent experiments. During the curing process of the adhesive, the two fans 7 can be started. Under the action of the fan 7, the air flow speed around the adhesive can be increased, thereby accelerating the curing speed of the adhesive, effectively improving the practicability. After the magnet 5 is fixed, the entire protective cover 2 can be removed, and then the base 1 is installed on the machine table. The lower pull head of the universal testing machine is lowered to the same horizontal height as the test pull head 6 hole, and then the test is performed after parallel placement and insertion of the latch. When the product positioning plate of other sizes is replaced, the above operation can be repeated to realize positioning adjustment.

[0044] The above are preferred embodiments of the present application, which do not limit the protection scope of the present application. Therefore, equivalent changes made on the basis of the structure, shape, and principle of the present application should be covered within the protection scope of the present application.

Claims

1. A device for testing and positioning an anti-corrosion insulation coating of a neodymium iron boron magnet, comprising a base (1), characterized in that: The base (1) is clamped with a protective cover (2), the base (1) is clamped with a positioning plate (4), the top of the positioning plate (4) is provided with a magnet (5), the top of the magnet (5) is provided with a test pull head (6), the protective cover (2) is provided with a positioning structure (3), the positioning structure (3) includes a connecting piece (301) and a guide column (302), the inner side of the protective cover (2) is fixedly connected with two connecting pieces (301), the connecting piece (302) is fixedly connected to the inner side of the protective cover (2), and the connecting piece (301) is fixedly connected to the guide column (302). 1) is fixedly connected with a guide column (302), a same pressing plate (303) is slidably connected between the two guide columns (302), a screw rod (304) is fixedly connected to the connecting piece (301), the two screw rods (304) pass through the pressing plate (303), a knob (305) is threadedly connected to the screw rod (304), the knob (305) contacts the pressing plate (303), and the pressing plate (303) contacts the top end of the test slider (6).

2. The NdFeB magnet anti-corrosion insulation coating testing and positioning device according to claim 1, characterized in that: The pressing plate (303) is parallel to the positioning plate (4), and the screw rod (304) is parallel to the guide column (302).

3. The NdFeB magnet anti-corrosion insulation coating testing and positioning device according to claim 1, characterized in that: The base (1) is provided with a placement groove (10), and the positioning plate (4) is located inside the placement groove (10).

4. The NdFeB magnet anti-corrosion insulation coating testing and positioning device according to claim 1, characterized in that: A positioning groove (11) is provided on the base (1), and the bottom end of the protective cover (2) is located inside the positioning groove (11).

5. The NdFeB magnet anti-corrosion insulation coating testing and positioning device according to claim 1, characterized in that: Two fans (7) are installed on both sides of the protective cover (2), and the two fans (7) are symmetrically arranged with respect to the middle of the protective cover (2).

6. The NdFeB magnet anti-corrosion insulation coating testing and positioning device according to claim 1, characterized in that: The overall horizontal cross-section of the protective cover (2) is in the shape of a "mouth", and the vertical cross-section at the bottom end of one side of the protective cover (2) is in the shape of an L.

7. The NdFeB magnet anti-corrosion insulation coating testing and positioning device according to claim 6, characterized in that: Two rotating shafts (8) are rotatably connected to the base (1), and a stopper (9) is fixedly connected to the rotating shaft (8), and the stopper (9) is in contact with the bottom end of the protective cover (2).

8. The NdFeB magnet anti-corrosion insulation coating testing and positioning device according to claim 7, characterized in that: The stopper (9) is perpendicular to the rotating shaft (8), and the two rotating shafts (8) are symmetrically arranged about the middle of the base (1).

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