Neodymium iron boron magnet single side positioning and clamping tool

Abstract

This utility model provides a fixture for single-sided positioning and clamping of neodymium iron boron magnets, used to clamp the magnet for spraying treatment on the top surface of the magnet. It includes a base, a jig plate, an elastic element, and a locking device. The jig plate is laterally slidable on the base, and its top surface has a groove for accommodating the magnet. After the magnet is placed into the groove, its top surface is exposed on the top surface of the jig plate. The elastic element is mounted on the base and can elastically deform. The elastic element protrudes along the sliding path of the jig plate, and the groove facing the elastic element forms a clearance space, exposing the sidewall of the magnet. After the jig plate slides to a predetermined position, the elastic element abuts against the sidewall of the magnet through the clearance space, using elastic force to prevent the magnet from sliding out of the groove. The locking device locks the jig plate in a predetermined position, maintaining a tight contact between the elastic element and the magnet. This prevents the magnet from being pulled out of the groove when the PET film is peeled off.

Description

Technical Field

[0001] This utility model relates to the technical field of neodymium iron boron magnet spraying, and in particular to a tooling for single-sided positioning and clamping of neodymium iron boron magnets. Background Technology

[0002] When performing epoxy coating on neodymium iron boron (NdFeB) magnets, the magnets need to be placed in a fixture, and a PET protective film needs to be attached to their surface. Then, they are placed in epoxy coating equipment for preheating, plasma cleaning, and epoxy coating. After epoxy coating, the PET protective film needs to be removed. During this process, because the fixture's placement slot is larger than the NdFeB magnet, the magnets are prone to tilting or deflecting when the PET protective film is attached. Furthermore, the film can easily pull the magnets out of the fixture during removal, causing damage to the epoxy coating surface. Therefore, a clamping mechanism is needed. However, the space for clamping the magnets after placement in the slot is small, and traditional clamps cannot directly hold them. This is the basis of this invention. Utility Model Content

[0003] The purpose of this utility model is to provide a tooling for single-sided positioning and clamping of neodymium iron boron magnets. The technical problem to be solved is to provide a tooling that can be used to clamp and position magnets that are coated on the surface of the magnet.

[0004] To achieve the above objectives, the solution of this utility model is: a tooling for single-sided positioning and clamping of neodymium iron boron magnets, used to clamp the magnets to facilitate the spraying treatment of the top surface of the magnets, including a base, a jig plate, an elastic element and a locking device;

[0005] The jig plate is slidably mounted on the base. The top surface of the jig plate has a placement groove for accommodating magnets. After the magnets are placed into the placement groove, the top surface of the magnets is exposed on the top surface of the jig plate.

[0006] The elastic element is set on the base and can be elastically deformed. The elastic element protrudes on the sliding track of the jig plate. The placement groove forms a clearance space on the side of the elastic element, so that the side wall of the magnet is exposed. After the jig plate slides to the predetermined position, the elastic element abuts against the side wall of the magnet through the clearance space, so as to elastically restrict the magnet from sliding out of the placement groove.

[0007] The locking device can lock the jig plate in a predetermined position, keeping the elastic element and the magnet in a tight abutment.

[0008] Furthermore, the elastic element is an L-shaped spring.

[0009] Furthermore, the L-shaped spring has two sides, one of which is a horizontally extending fixed part and the other is a longitudinally extending deformable part. The fixed part is connected and fixed to the base, and the deformable part gradually tilts towards the magnet in the direction of the clearance space.

[0010] Furthermore, the included angle α between the two sides of the L-shaped spring is 80 degrees.

[0011] Furthermore, a bent portion is formed on the top side of the deformable portion, which is formed by bending the top side of the deformable portion in a direction away from the magnet.

[0012] Furthermore, the elastic element is made of manganese steel or stainless steel.

[0013] Furthermore, a limiting component is movably provided on the base. The limiting component protrudes on the sliding track of the fixture plate and is used to limit the fixture plate to one side. The limiting component can adjust the relative displacement between itself and the fixture plate to limit the fixture plate to slide to different predetermined positions, so that the elastic deformation degree after the elastic component comes into contact with the magnet is different.

[0014] Furthermore, a limiting component is provided on the base, and the limiting component and the locking device are respectively located at both ends of the sliding trajectory of the fixture plate. The locking device includes a push rod, which can extend or retract toward the fixture plate so that when the push rod extends, the fixture plate is locked between the limiting component and the locking device, and when the push rod retracts, the fixture plate is in an unlocked state.

[0015] Furthermore, the sliding direction of the jig plate is the first horizontal direction, and the jig plate is provided with multiple placement slots at intervals along the first horizontal direction. Each placement slot corresponds to a magnet. The number of elastic elements is the same as the placement slots. Multiple elastic elements are provided at intervals along the first horizontal direction on the base, and their positions correspond one-to-one with the placement slots.

[0016] Furthermore, the clearance space extends longitudinally through the fixture plate, with the elastic element located below the fixture plate and extending upward into the clearance space, directly opposite the side wall of the magnet.

[0017] After adopting the above solution, the beneficial effects of this utility model are as follows: by setting an elastic element on the base, the elastic element protrudes from the sliding trajectory of the jig plate, and the jig plate has a clearance area facing the direction of the elastic element. This clearance area exposes the side of the magnet. When the jig plate slides towards the elastic element, the elastic element can abut against the side wall of the magnet through the clearance area, causing the elastic element to undergo elastic deformation and generate elastic force. This elastic force acts on the side wall of the magnet, pressing the opposite side wall of the magnet against the placement groove, forming a single-sided positioning and clamping, and preventing the magnet from sliding out of the placement groove. Attached Figure Description

[0018] Figure 1 This is a three-dimensional exploded structural diagram of the present invention.

[0019] Figure 2 This is a schematic diagram of the structure of the base and locking device of this utility model.

[0020] Figure 3This is a cross-sectional structural diagram of the fixture plate in the unlocked state of this utility model.

[0021] Figure 4 yes Figure 3 Enlarged view of part A.

[0022] Figure 5 This is a three-dimensional cross-sectional structural diagram of the fixture plate in the locked state of this utility model.

[0023] Figure 6 This is a cross-sectional structural diagram of the fixture plate in the locked state of this utility model.

[0024] Figure 7 yes Figure 6 Enlarged view of part B.

[0025] Figure 8 This is a structural schematic diagram of the elastic element of this utility model.

[0026] Label Explanation:

[0027] 100-Magnet, 1-Base, 2-Jig plate, 3-Elastic element, 4-Locking device, 5-Limiting element, 6-PET film layer, 11-First sidewall, 12-Second sidewall, 13-Third sidewall, 21-Placement groove, 22-Leaving space, 23-Positioning post, 31-Fixing part, 32-Deformable part, 33-Bending part, 41-Top rod, 42-Rotating handle, 43-Connecting rod, 44-Mounting base, 45-Mounting part, 61-Spraying hole, 62-Positioning hole, 421-First pivot point, 422-Second pivot point, 423-Drive end. Detailed Implementation

[0028] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0029] Unless otherwise expressly defined, the use of directional terms such as "center," "lateral," "longitudinal," "horizontal," "vertical," "top," "bottom," "inner," "outer," "upper," "lower," "front," "rear," "left," "right," "clockwise," and "counterclockwise" in the claims, description, and accompanying drawings of this utility model is merely for the convenience of describing the utility model and simplifying the description, and is not intended to indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation. Therefore, it should not be construed as limiting the specific protection scope of this utility model.

[0030] like Figures 1 to 8As shown in the figure, this utility model provides a fixture for single-sided positioning and clamping of a neodymium iron boron magnet, used to clamp the magnet 100 to facilitate the spraying treatment of the top surface of the magnet 100. The magnet 100 is an unmagnetized neodymium iron boron magnet. The fixture includes a base 1, a jig plate 2, an elastic element 3, and a locking device 4. The jig plate 2 is laterally slidably disposed on the base 1. A placement groove 21 for accommodating the magnet 100 is formed on the top surface of the jig plate 2. After the magnet 100 is placed into the placement groove 21, the top surface of the magnet 100 is exposed on the top surface of the jig plate 2. The elastic element 3 is disposed on the base 1. The elastic element 3 can be a compression spring or a sheet, without specific limitations. The elastic element 3 protrudes on the sliding track of the fixture plate 2. The placement groove 21 forms a clearance space 22 on the side facing the elastic element 3, so that the side wall of the magnet 100 is exposed. After the fixture plate 2 slides to the predetermined position, the elastic element 3 can abut against the side wall of the magnet 100 through the clearance space 22, so as to restrict the magnet 100 from sliding out of the placement groove 21 with elastic force. The locking device 4 can lock the fixture plate 2 in the predetermined position, so that the elastic element 3 and the magnet 100 are kept in a tight abutment state.

[0031] In this specific embodiment, the sliding direction of the jig plate 2 is the first horizontal direction (X direction). The jig plate 2 is provided with a plurality of placement slots 21 at parallel intervals along the first horizontal direction. The plurality of placement slots 21 are arranged in a row, and one magnet 100 is placed in each placement slot 21. The number of elastic members 3 is the same as that of the placement slots 21. The plurality of elastic members 3 are provided with a plurality of elastic members 3 at parallel intervals along the first horizontal direction on the base 1, and their positions correspond one-to-one with the placement slots 21. In addition, at least two rows of placement slots 21 are arrayed along the second horizontal direction (Y direction). The first horizontal direction and the second horizontal direction are perpendicular. Those skilled in the art can set the number of placement slots 21 according to the specific situation.

[0032] Key points combined Figure 1-3 as well as Figure 8 As shown, the clearance space 22 extends longitudinally through the fixture plate 2, and the elastic element 3 is located below the fixture plate 2. The elastic element 3 is an L-shaped spring sheet with two sides. One side is a horizontally extending fixed part 31, and the other side is a longitudinally extending deformable part 32. The fixed part 31 is connected and fixed to the base 1, and the deformable part 32 gradually tilts towards the magnet 100 in the direction of the clearance space 22.

[0033] Key points combined Figure 1As shown, before spraying the top surface of the magnet 100, a PET film layer 6 needs to be pasted onto the fixture plate 2. Spraying holes 61 corresponding to the position and number of the placement groove 21 are formed on the PET film layer 6. Positioning posts 23 are formed at all four corners of the fixture plate 2. Positioning holes 62 corresponding to the positions of the positioning posts 23 are formed on the PET film layer 6. The positioning holes 62 are fitted onto the positioning posts 23 so that the spraying holes 61 correspond to the positions of the placement groove 21 on the fixture plate 2, avoiding skewing. After spraying, the PET film layer 6 needs to be peeled off. In order to prevent the magnet 100 from being pulled out of the placement groove 21 when the PET film layer 6 is peeled off, preferably, the included angle α between the two sides of the L-shaped spring is 80 degrees, so as to ensure that after the L-shaped spring abuts against the magnet 100, it can exert a downward force on the magnet 100, preventing the magnet 100 from slipping out of the placement groove 21. At the same time, by clamping the magnet 100, it is convenient to peel off the film, which improves the efficiency of peeling off the film.

[0034] Key points combined Figure 8 As shown, a bent portion 33 is formed on the top side of the deformable portion 32. The bent portion 33 is formed by bending the top side of the deformable portion 32 away from the magnet 100. The top side of the deformable portion 32 is used to abut against the side of the magnet 100. The deformable portion 32 can enhance the strength of the top side of the deformable portion 32.

[0035] In this specific embodiment, the elastic element 3 is made of manganese steel or stainless steel.

[0036] In this specific embodiment, a limiting member 5 is movably disposed on the base 1. The limiting member 5 protrudes from the sliding trajectory of the fixture plate 2 and is used to limit the fixture plate 2 to one side. The limiting member 5 can adjust the relative displacement between itself and the fixture plate 2 to limit the fixture plate 2 to slide to different predetermined positions, so that the elastic deformation degree of the elastic member 3 after contacting the magnet 100 is different, and thus the elastic force generated when the elastic member 3 contacts the magnet 100 is different. This is particularly important in conjunction with... Figure 2As shown, the base 1 has first sidewalls 11 on both sides of the sliding track of the fixture plate 2, a second sidewall 12 at the starting end of the sliding track of the fixture plate 2, and a third sidewall 13 at the end of the sliding track of the fixture plate 2. The distance between the two first sidewalls 11 is the same as the width of the fixture plate 2, which is used to restrict the sliding track of the fixture plate 2 on both sides. When the fixture plate 2 slides, it slides from the second sidewall 12 toward the third sidewall 13. A bolt hole is passed through the third sidewall 13, and an adjusting bolt is screwed into the bolt hole. The adjusting bolt is the limiting member 5. The end of the adjusting bolt is used to abut against one end of the fixture plate 2 to restrict the fixture plate 2 from continuing to slide. Tightening the adjusting bolt causes it to extend or retract relative to the third sidewall 13. When tightening, the adjusting bolt extends or retracts relative to the third sidewall 13. Side 13 extends out, causing the limit position of the fixture plate 2 abutting the end of the adjusting bolt to move away from the third side 13. When screwed out, the adjusting bolt retracts relative to the third side 13, causing the limit position of the fixture plate 2 abutting the end of the adjusting bolt to move closer to the third side 13. By rotating the screwing distance of the adjusting bolt, the distance between the fixture plate 2 and the third side 13 in the locked state can be adjusted, thereby changing the degree of elastic deformation of the elastic element 3 after it abuts the magnet 100. Of course, in other embodiments, a groove can be provided on the base 1, and the limiting element 5 can be a slider. The relative displacement between the slider and the fixture plate 2 can be adjusted by sliding the slider at different positions in the groove. Preferably, there are two limiting elements 5, which abut against the two sides of the fixture plate 2 respectively, making the structure more stable.

[0037] In this specific embodiment, the limiting member 5 and the locking device 4 are located at both ends of the sliding trajectory of the fixture plate 2. The locking device 4 includes a push rod 41, which can extend or retract toward the fixture plate 2. When the push rod 41 extends, it approaches and pushes against the fixture plate 2 to slide, so that the fixture plate 2 is locked between the limiting member 5 and the locking device 4. When the push rod 41 retracts, the fixture plate 2 is in the unlocked state.

[0038] Key points combined Figure 3As shown, the locking device 4 also includes a rotating handle 42, a connecting rod 43, and a mounting base 44. One end of the mounting base 44 is mounted on the bottom side of the base 1, and the other end is a free end that extends to one side of the fixture plate 2, located on the side of the starting end of the sliding trajectory of the fixture plate 2. A mounting part 45 is provided on the free end of the mounting base 44. The rotating handle 42 has a first pivot point 421, a second pivot point 422, and a driving end 423. The driving end 423 and the first pivot point 421 are located at opposite ends of the rotating handle 42. The second pivot point 422 and the first pivot point 421 are spaced apart and positioned close to the first pivot point 421. The rotating handle 42 is pivotally connected to the mounting base 44 via the first pivot point 421. On part 45, the pivot axis of the first pivot point 421 extends horizontally and is perpendicular to the sliding trajectory of the fixture plate 2. The rotating handle 42 can rotate toward the fixture plate 2 or away from it. The push rod 41 extends along the sliding trajectory of the fixture plate 2, with one end facing the fixture plate 2 for pushing against it. Specifically, a clearance area is formed on the second sidewall 12 for the push rod 41 to be inserted. The other end of the push rod 41 is connected to the rotating handle 42 via a connecting rod 43. The connecting rod 43 has an arc-shaped structure, with one end fixedly connected to the push rod 41 and the other end pivotally connected to the second pivot point 422 of the rotating handle 42. During use, the key is to combine... Figure 5-7 As shown, the drive end 423 is rotated around the pivot shaft towards the fixture plate 2, causing the second pivot point 422 to approach the fixture plate 2. This causes the connecting rod 43 to drive the push rod 41 to approach the fixture plate 2 and push it against the fixture plate 2 to slide until the fixture plate 2 slides to the predetermined position and abuts against the limiting member 5, locking the fixture plate 2. When unlocking, the focus is on the engagement. Figure 3-4 As shown, the drive end 423 is rotated away from the fixture plate 2, so that the second pivot point 422 moves away from the fixture plate 2, thereby causing the connecting rod 43 to drive the push rod 41 away from the fixture plate 2, thus unlocking the fixture plate 2. In addition, a limiting hole is formed on the mounting base 44 for the push rod 41 to pass through, so as to limit the sliding trajectory of the push rod 41.

[0039] The above description is only a preferred embodiment of this utility model and is not intended to limit the design of this case. All equivalent changes made based on the key design of this case shall fall within the protection scope of this case.

Claims

1. A fixture for single-sided positioning and clamping of a neodymium iron boron magnet, used to clamp the magnet (100) to facilitate spraying treatment on the top surface of the magnet (100), characterized in that: It includes a base (1), a jig plate (2), an elastic element (3), and a locking device (4); The jig plate (2) is slidably mounted on the base (1). The top surface of the jig plate (2) has a placement groove (21) for accommodating the magnet (100). After the magnet (100) is placed into the placement groove (21), the top surface of the magnet (100) is exposed on the top surface of the jig plate (2). The elastic element (3) is set on the base (1) and can be elastically deformed. The elastic element (3) protrudes on the sliding track of the jig plate (2). The placement groove (21) forms a clearance space (22) on the side facing the elastic element (3), so that the side wall of the magnet (100) is exposed. After the jig plate (2) slides to the predetermined position, the elastic element (3) abuts against the side wall of the magnet (100) through the clearance space (22) so as to elastically restrict the magnet (100) from sliding out of the placement groove (21). The locking device (4) can lock the jig plate (2) in a predetermined position, so that the elastic element (3) and the magnet (100) remain in a tight state.

2. The tooling for single-sided positioning and clamping of neodymium iron boron magnets as described in claim 1, characterized in that: The elastic element (3) is an L-shaped spring sheet.

3. The tooling for single-sided positioning and clamping of neodymium iron boron magnets as described in claim 2, characterized in that: The L-shaped spring has two sides, one side being a horizontally extending fixed part (31) and the other side being a longitudinally extending deformable part (32). The fixed part (31) is connected and fixed on the base (1), and the deformable part (32) gradually tilts towards the magnet (100) in the direction of the clearance space (22).

4. The tooling for single-sided positioning and clamping of neodymium iron boron magnets as described in claim 2, characterized in that: The included angle α between the two sides of the L-shaped spring is 80 degrees.

5. The tooling for single-sided positioning and clamping of neodymium iron boron magnets as described in claim 3, characterized in that: A bent portion (33) is formed on the top side of the deformable portion (32), and the bent portion (33) is formed by bending the top side of the deformable portion (32) in a direction away from the magnet (100).

6. The fixture for single-sided positioning and clamping of neodymium iron boron magnets as described in claim 1, characterized in that: The elastic element (3) is made of manganese steel or stainless steel.

7. The tooling for single-sided positioning and clamping of neodymium iron boron magnets as described in claim 1, characterized in that: The base (1) is movably provided with a limiting member (5). The limiting member (5) protrudes on the sliding track of the fixture plate (2) and is used to limit the fixture plate (2) to one side. The limiting member (5) can adjust the relative displacement between itself and the fixture plate (2) to limit the fixture plate (2) to slide to different predetermined positions, so that the elastic deformation degree after the elastic member (3) comes into contact with the magnet (100) is different.

8. The tooling for single-sided positioning and clamping of neodymium iron boron magnets as described in claim 1, characterized in that: The base (1) is provided with a limiting member (5), and the limiting member (5) and the locking device (4) are located at both ends of the sliding trajectory of the fixture plate (2). The locking device (4) includes a push rod (41), which can extend or retract toward the fixture plate (2) so that when the push rod (41) extends, the fixture plate (2) is locked between the limiting member (5) and the locking device (4), and when the push rod (41) retracts, the fixture plate (2) is in the unlocked state.

9. The tooling for single-sided positioning and clamping of neodymium iron boron magnets as described in claim 1, characterized in that: The sliding direction of the fixture plate (2) is the first horizontal direction. The fixture plate (2) is provided with multiple placement slots (21) at intervals along the first horizontal direction. One placement slot (21) corresponds to one magnet (100). The number of elastic elements (3) is the same as that of the placement slots (21). Multiple elastic elements (3) are provided at intervals along the first horizontal direction on the base (1), and their positions correspond one-to-one with the placement slots (21).

10. The tooling for single-sided positioning and clamping of neodymium iron boron magnets as described in claim 1, characterized in that: The clearance space (22) extends longitudinally through the fixture plate (2), and the elastic element (3) is located below the fixture plate (2) and extends upward into the clearance space (22), directly opposite the side wall of the magnet (100).

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