Electrophoretic hanger for bonding rare earth permanent magnet processing

Abstract

The utility model relates to rare earth permanent magnet surface treatment technical field discloses an electrophoresis hanger for bonding rare earth permanent magnet processing, including roof and fixed in its bottom end's side pole no.

Description

Technical Field

[0001] This utility model relates to the field of rare earth permanent magnet surface treatment technology, and in particular to an electrophoresis hanger for bonding rare earth permanent magnets. Background Technology

[0002] Due to their unique physicochemical properties, bonded rare earth permanent magnets usually require surface electrophoretic coating after production to improve their corrosion resistance and oxidation resistance. During the electrophoretic process, the hanger not only serves as a physical support tool for supporting a large number of small magnets, but is also a key component for conducting current during electrophoresis. The rationality of its structure and surface condition directly determine the coating quality and production efficiency of the magnets.

[0003] However, during continuous electrophoresis operations, the same electrophoretic paint as the workpiece will inevitably adhere to the surface of the hanger. With the increase in usage frequency, a thick paint film will accumulate on the surface of the hanger, especially at the contact points used to suspend the magnets. Since the electrophoretic paint film has extremely strong insulation after curing, this accumulation will seriously hinder the conduction of current between the hanger and the magnet, resulting in quality defects such as uneven painting, missed coating, or even inability to paint the magnets in subsequent processing. Therefore, it is necessary to regularly clean and maintain the hanger by removing the paint.

[0004] Most existing electrophoresis racks adopt an integral welded fixed frame structure. While this design ensures the overall strength of the rack to a certain extent, it is extremely cumbersome and inconvenient when facing paint removal and maintenance needs. Due to the large overall size of the rack, it is not only difficult to disassemble and move it off the production line, but it is also difficult to clean only the hook parts with heavy paint accumulation. Operators often need to handle the entire huge rack frame or use large cleaning equipment. This not only greatly increases energy consumption and maintenance costs, but also has low cleaning efficiency and makes it difficult to completely remove the insulation layer of key contact points, which seriously restricts the continuous and efficient production of rare earth permanent magnets.

[0005] Therefore, this utility model proposes an electrophoresis fixture for bonding rare earth permanent magnets to overcome the shortcomings of the prior art. Utility Model Content

[0006] To overcome the above shortcomings, this utility model provides an electrophoresis hanger for processing bonded rare earth permanent magnets, aiming to improve the problem that some existing electrophoresis hangers for processing bonded rare earth permanent magnets generally adopt an integral welded structure, which makes it difficult to specifically remove the insulating varnish film accumulated after long-term use.

[0007] This utility model provides an electrophoresis hanger for bonding rare earth permanent magnets, comprising: a top frame, a side rod one fixedly connected to the bottom end of the top frame, and a disassembly mechanism. The disassembly mechanism includes a second side rod, an extension rod, and a locking assembly. The second side rod is fixedly connected to the bottom end of the top frame and is positioned opposite the first side rod. The first and second side rods, together with the top frame, form the main frame of the hanger. The extension rod is laterally positioned between the first and second side rods, with the first side rod facing towards the top frame. The side wall of the second side rod has a clearance cavity for the insertion of the end of the extension rod. One end of the extension rod is slidably inserted into the clearance cavity, and the other end of the extension rod has an installation cavity. The locking assembly is movably installed in the installation cavity. The end of the locking assembly passes through the end face of the extension rod and is engaged in a locking hole in the side wall of the second side rod. The extension rod is locked onto the second side rod by the telescopic cooperation of the locking assembly, and the extension rod can be disassembled by utilizing the depth space of the clearance cavity.

[0008] Preferably, the locking assembly includes a fixing block, a spring, and a round-headed locking rod. The fixing block is fixedly connected to the inner wall of the mounting cavity, the round-headed locking rod is slidably engaged with the end of the extension rod, and the spring is disposed in the mounting cavity and sleeved on the outside of the round-headed locking rod.

[0009] Preferably, one end of the spring abuts against the side of the fixing block facing the second side rod, and the other end of the spring abuts against the end of the round-headed locking rod located in the mounting cavity. The end of the round-headed locking rod away from the spring naturally protrudes from the end face of the extension rod and extends into the interior of the second side rod. When the round-headed locking rod is pressed by an external force, it can compress the spring and retract into the interior of the extension rod, thereby releasing the lock on the second side rod.

[0010] Preferably, the depth of the clearance cavity inside the first side rod is greater than the length of the locking assembly extending from the end face of the extension rod. The depth is set so that after the locking assembly disengages from the second side rod, the extension rod can have sufficient travel to move towards the first side rod until one end of the extension rod is completely freed from the restraint of the second side rod.

[0011] Preferably, the disassembly mechanism further includes multiple suspension heads, which are fixedly connected to the outer wall of the extension rod at intervals along the length direction of the extension rod. The suspension heads are used to suspend the rare earth permanent magnets to be processed and can be cleaned independently after being disassembled with the extension rod.

[0012] Preferably, the top of the top frame is provided with a hook mechanism, which includes a first side ring and a second side ring. The first side ring and the second side ring are rotatably connected to the inner wall of the top beam of the top frame, and the top ends of the first side ring and the second side ring can rotate relative to each other and close together to form a closed suspension ring structure.

[0013] Preferably, the hook mechanism further includes alignment blocks, and a plurality of alignment blocks are fixedly connected to the outer surface of the second side ring in a toothed manner to provide multi-level snapping resistance and positioning reference.

[0014] Preferably, the hook mechanism further includes an outer plate, which is fixedly connected to the outside of the first side ring. The outer plate has a slot on the inner side wall of the second side ring that matches the shape of the aligning block. When the first side ring and the second side ring are closed, the outer plate can be locked on the outside of the aligning block to achieve interlocking and prevent the hook mechanism from opening accidentally.

[0015] This utility model has the following beneficial effects: 1. This utility model, by setting a detachable extension rod between the side rods, and utilizing the spring locking component built into the end of the extension rod to cooperate with the deep hole avoidance cavity reserved inside the side rod, realizes the quick assembly and disassembly of the extension rod. This solves the problem that the existing electrophoresis hangers, due to their integrated welding structure, are difficult to thoroughly clean after long-term use, resulting in poor conductive contact of the hanger and affecting the electrophoresis quality. The technical effects achieved are that the extension rod can be removed separately for convenient cleaning, the conductive performance of the suspension head is always stable, the service life of the hanger is effectively extended, and the difficulty of daily maintenance is significantly reduced.

[0016] 2. This utility model solves the problem that traditional hanger hooks are mostly simple curved hooks, which are prone to falling off the hanger during electrophoresis line transmission and lifting vibration. It achieves the technical effect of forming a stable closed-loop locking state, significantly improving the safety and stability of hanger suspension, and ensuring continuous and reliable operation of the electrophoresis processing process.

[0017] 3. This utility model, by adopting a rectangular frame structure composed of a top frame and two side rods, and by setting multiple suspension heads at intervals on the surface of multiple horizontal extension rods, solves the problems of small individual rare earth permanent magnet workpieces, low loading efficiency and easy mutual obstruction during batch processing. It achieves the technical effect of maximizing the single processing loading capacity within the limited space of the electrophoresis tank, and the workpieces are arranged neatly and orderly, which is conducive to ensuring the uniform thickness of the electrophoretic coating film. Attached Figure Description

[0018] Figure 1This is a three-dimensional schematic diagram of an electrophoretic coating fixture for bonding rare earth permanent magnets proposed in this utility model. Figure 2 This is a schematic diagram of the side rod 2 of an electrophoresis fixture for bonding rare earth permanent magnets proposed in this utility model; Figure 3 This is a schematic diagram of the suspension head of an electrophoresis fixture for processing rare earth permanent magnets proposed in this utility model. Figure 4 for Figure 3 Enlarged view of point A in the middle; Figure 5 for Figure 3 Enlarged view of point B in the middle.

[0019] Legend: 1. Side rod one; 2. Top frame; 3. Disassembly mechanism; 31. Side rod two; 32. Extension rod; 33. Locking assembly; 331. Fixing block; 332. Spring; 333. Round-headed locking rod; 34. Suspension head; 4. Hook mechanism; 41. Side ring one; 42. External plate; 43. Side ring two; 44. Alignment block. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model. Example

[0021] Reference Figures 1 to 5 This embodiment provides an electrophoresis hanger for bonding rare earth permanent magnets, aiming to solve the technical problems in the prior art where the integrated structure of the electrophoresis hanger leads to difficulties in cleaning the paint film, affects the conductivity, and the hook structure is simple and easy to fall off.

[0022] like Figure 1 and Figure 2 As shown, an electrophoresis hanger for bonding rare earth permanent magnets includes a top frame 2, a side rod 1 fixedly connected to one side of the bottom end of the top frame 2, and a disassembly mechanism 3 disposed on the other side of the bottom end of the top frame 2. The side rod 1 and the disassembly mechanism 3 are disposed opposite to each other and together with the top frame 2 form a rectangular support frame for the hanger.

[0023] The disassembly mechanism 3 includes a second side rod 31, an extension rod 32, and a locking assembly 33. The second side rod 31 is fixedly connected to the bottom end of the top frame 2 and is parallel to and opposite to the first side rod 1. The extension rod 32 is horizontally mounted between the first side rod 1 and the second side rod 31 to support the workpiece. The first side rod 1 has a deep clearance cavity on its inner wall facing the second side rod 31. One end of the extension rod 32 is slidably inserted into the clearance cavity, and the other end of the extension rod 32 has an installation cavity. The locking assembly 33 is movably installed in the installation cavity. The end of the locking assembly 33 passes through the end face of the extension rod 32 and is inserted into the locking hole on the side wall of the second side rod 31. The extension rod 32 is locked to the second side rod 31 by the elastic extension and contraction of the locking assembly 33.

[0024] Reference Figure 2 and Figure 4 The locking assembly 33 includes a fixing block 331, a spring 332, and a round-headed locking rod 333. The fixing block 331 is welded and fixed to the inner wall of the mounting cavity. The round-headed locking rod 333 is slidably fitted at the end opening of the extension rod 32. The spring 332 is disposed in the mounting cavity and sleeved on the outside of the round-headed locking rod 333. One end of the spring 332 abuts against the side of the fixing block 331 facing the side rod 31, and the other end of the spring 332 abuts against the end of the round-headed locking rod 333 located in the mounting cavity. The end of 333 away from spring 332 is pushed out by elastic force in its natural state, passing through the end face of extension rod 32 and extending into the internal locking hole of side rod 2 31, preventing extension rod 32 from falling off. The depth of the clearance cavity inside side rod 1 is greater than the length of round head locking rod 333 extending out of the end face of extension rod 32. This size design allows extension rod 32 to have enough stroke to move towards side rod 1 after round head locking rod 333 is fully retracted, so that the left end of extension rod 32 can be completely freed from the restraint of side rod 2 31.

[0025] like Figure 3 As shown, the disassembly mechanism 3 also includes multiple suspension heads 34. The multiple suspension heads 34 are welded and fixed to the outer wall of the extension rod 32 at intervals along the length direction of the extension rod 32. The suspension heads 34 are used to directly suspend and bond rare earth permanent magnets. The extension rod 32 is designed as a detachable structure, which facilitates the thorough cleaning of the insulating varnish film accumulated on the surface of the extension rod 32 and the suspension heads 34 after multiple electrophoresis, ensuring good conductivity between the suspension heads 34 and the workpiece. The top of the top frame 2 is provided with a hook mechanism 4.

[0026] like Figure 3 and Figure 5 As shown, the hook mechanism 4 includes a first side ring 41 and a second side ring 43. Both the first side ring 41 and the second side ring 43 are rotatably connected to the top crossbeam of the top frame 2, and the first side ring 41 and the second side ring 43 can come together to close and form a closed suspension ring.

[0027] The hook mechanism 4 also includes a reversing block 44 and an outer plate 42. Multiple reversing blocks 44 are fixedly connected to the outer surface of the second side ring 43. The reversing blocks 44 are distributed with tooth-like protrusions. The outer plate 42 is fixedly connected to the top of the outer side of the first side ring 41. The outer plate 42 has a slot that matches the shape of the reversing block 44 on the side facing the second side ring 43. When the first side ring 41 and the second side ring 43 are closed, the outer plate 42 covers the outer side of the second side ring 43 and locks itself by interlocking with the tooth-like structure of the reversing block 44 through the inner slot, thus preventing the first side ring 41 and the second side ring 43 from separating.

[0028] The implementation principle of this application embodiment is as follows: the electrophoresis hanger has a top frame 2 as the top, and side rods 1 are fixed on both sides of the bottom end. The side rods 2 and 31 cooperate with the side rods 1 to form an overall frame. The extension rod 32 can be removed by the disassembly mechanism 3 to clean the surface electrophoretic coating film. The top of the top frame 2 is equipped with a hook mechanism 4 to prevent the entire hanger from falling off when suspended.

[0029] Side rod 2 31 and side rod 1 are both fixed to the bottom of the top frame 2 and can be disassembled by locking assembly 33. Press the round head locking rod 333 in both directions to move it inward and compress the spring 332. The other end of the spring 332 abuts against the fixing block 331 fixed inside the extension rod 32. At this time, the round head locking rod 333 retracts into the extension rod 32. Pull the extension rod 32 to the right so that the right end continues to move into the excess empty end inside the side rod 1. At this time, the extension rod 32 can be removed for cleaning. Multiple suspension heads 34 are fixed on the surface of the extension rod 32. The rare earth permanent magnet is hung on the suspension head 34.

[0030] Both side ring 1 41 and side ring 2 43 rotate on the inner wall of the top frame 2. Multiple alignment blocks 44 are fixed on the outer surface of side ring 2 43. An outer plate 42 is fixed on the outer side of side ring 1 41. Multiple slots are opened on the inner side of the outer plate 42 to fit with the alignment blocks 44. By rotating side ring 1 41 and side ring 2 43, the two are brought into contact. The outer plate 42 and the alignment blocks 44 gradually come into contact and are locked on the outer side of the alignment blocks 44 until they are completely locked.

Claims

1. An electrophoresis fixture for bonding rare earth permanent magnets, comprising a top frame (2) and a side rod (1) fixedly connected to the bottom end of the top frame (2); Its features are, The electrophoretic coating fixture for bonding rare earth permanent magnets also includes a disassembly mechanism (3). The disassembly mechanism (3) includes a second side rod (31), an extension rod (32), and a locking assembly (33). The second side rod (31) is fixedly connected to the bottom end of the top frame (2) and is arranged opposite to the first side rod (1). The extension rod (32) is arranged laterally between the first side rod (1) and the second side rod (31). The first side rod (1) has a side wall facing the second side rod (31) for the extension rod to extend. The extension rod (32) is inserted into the clearance cavity at the end of the rod (32). One end of the extension rod (32) is slidably inserted into the clearance cavity. The other end of the extension rod (32) has an installation cavity. The locking assembly (33) is movably installed in the installation cavity. The end of the locking assembly (33) passes through the end face of the extension rod (32) and is inserted into the card hole opened on the side wall of the side rod (31). The extension rod (32) is locked on the side rod (31) by the extension and retraction of the locking assembly (33).

2. The electrophoretic coating fixture for bonding rare earth permanent magnets according to claim 1, characterized in that, The locking assembly (33) includes a fixing block (331), a spring (332), and a round-headed locking rod (333). The fixing block (331) is fixedly connected to the inner wall of the mounting cavity. The round-headed locking rod (333) is slidably engaged with the end of the extension rod (32). The spring (332) is disposed in the mounting cavity and sleeved on the outside of the round-headed locking rod (333).

3. The electrophoretic coating fixture for bonding rare earth permanent magnets according to claim 2, characterized in that, One end of the spring (332) abuts against the side of the fixing block (331) facing the side rod (31), and the other end of the spring (332) abuts against the end of the round-headed clamp (333) located in the mounting cavity. The end of the round-headed clamp (333) away from the spring (332) passes through the end face of the extension rod (32) and extends into the interior of the side rod (31). The round-headed clamp (333) can compress the spring (332) and retract into the interior of the extension rod (32) when subjected to force.

4. The electrophoretic coating fixture for bonding rare earth permanent magnets according to claim 1, characterized in that, The depth of the clearance cavity inside the side rod (1) is greater than the length of the locking assembly (33) extending out of the end face of the extension rod (32), so that after the locking assembly (33) disengages from the side rod (2) (31), the extension rod (32) can move and disassemble in the direction of the side rod (1).

5. The electrophoretic coating fixture for bonding rare earth permanent magnets according to claim 1, characterized in that, The disassembly mechanism (3) further includes multiple suspension heads (34), which are fixedly connected to the outer wall of the extension rod (32) at intervals along the length direction of the extension rod (32). The suspension heads (34) are used to suspend rare earth permanent magnets.

6. The electrophoretic coating fixture for bonding rare earth permanent magnets according to claim 1, characterized in that, The top of the top frame (2) is provided with a hook mechanism (4), which includes a side ring one (41) and a side ring two (43). The side ring one (41) and the side ring two (43) are rotatably connected to the inner wall of the top beam of the top frame (2), and the top ends of the side ring one (41) and the side ring two (43) can rotate and close to each other.

7. The electrophoretic coating fixture for bonding rare earth permanent magnets according to claim 6, characterized in that, The hook mechanism (4) further includes a counter-alignment block (44), and a plurality of the counter-alignment blocks (44) are fixedly connected to the outer surface of the second side ring (43), and the plurality of counter-alignment blocks (44) are arranged in a toothed interval.

8. The electrophoretic coating fixture for bonding rare earth permanent magnets according to claim 7, characterized in that, The hook mechanism (4) also includes an outer plate (42), which is fixedly connected to the outside of the first side ring (41). The outer plate (42) has a slot on the inner side wall of the second side ring (43) that matches the shape of the counter-block (44). When the first side ring (41) and the second side ring (43) are closed, the outer plate (42) can be locked on the outside of the counter-block (44).

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