A high-speed motor Hall effect speed measuring magnetic ring forming device

Abstract

This utility model discloses a high-speed motor Hall effect speed measuring magnetic ring forming device, which includes: a lower mold, a magnetic ring core installed on the top of the inner cavity of the lower mold, and abutments fixedly inserted on both sides of the bottom end of the lower mold. Two mounting plates are placed at the bottom of the magnetic ring core, and through holes are opened on both sides of the surface of the bottom mounting plates. Multiple ejection components are installed between the two mounting plates. The top of each abutment slides through the inner cavity of the through hole on the same side, and wedge-shaped positioning blocks are provided on both sides of each abutment. This utility model achieves modular assembly of the ejection module and the lower mold by combining the mounting plates and multiple ejection components, and cooperating with the wedge-shaped positioning blocks. When it is necessary to replace the ejection components, it is only necessary to release the wedge-shaped positioning blocks from limiting the ejection module, and then remove the ejection module from the inside of the lower mold, so that the workers can maintain and replace the ejection components from the outside of the lower mold.

Description

Technical Field

[0001] This utility model relates to the field of magnetic ring forming technology, and in particular to a high-speed motor Hall induction speed measuring magnetic ring forming device. Background Technology

[0002] The high-speed motor Hall induction speed measuring magnetic ring forming equipment is a special equipment used to manufacture Hall induction speed measuring magnetic rings for high-speed motors. Its purpose is to process magnetic materials into magnetic rings with specific magnetic pole distribution and size so that they can be used with Hall elements to realize motor speed detection.

[0003] The utility model patent with publication number CN219497540U discloses a multi-pole magnetic ring magnetization molding die. The upper die moves vertically downwards to compress rare earth elements within the multi-pole magnetic ring core. Under pressure, the multi-pole magnetic ring core slides vertically along a dovetail groove, applying vertical pressure to a ejector plate. This ejector plate causes the telescopic end of the telescopic column and the spring to contract simultaneously until the lower surface of the multi-pole magnetic ring core contacts the upper surface of the limiting column, at which point the downward movement stops. The upper die then continues to move downwards to compress and mold the rare earth elements within the multi-pole magnetic ring core. After the multi-pole magnetic ring is formed, the upper die moves vertically upwards out of the lower die. At this point, the spring's compression force causes the ejector plate to apply an upward force to the multi-pole magnetic ring core, causing the upper end of the multi-pole magnetic ring core to slide out of the lower die along the dovetail groove. The operator then removes the multi-pole magnetic ring core and tilts it out to remove the formed multi-pole magnetic ring. The device is easy to use for ejection. The multi-pole magnetic ring magnetization molding die produces multi-pole magnetic rings by magnetizing and pressing rare earth elements. After molding, the multi-pole magnetic ring is moved to the outer end of the die along with the mold core by the compression force of a spring, making it convenient for workers to remove the molded multi-pole magnetic ring. Although this solves the problem that "the multi-pole magnetic ring is in close contact with the mold cavity after molding, making the demolding operation inconvenient", this technical solution uses components such as springs to achieve the demolding operation of the magnetic ring mold core. During the repeated compression and reset process, the elastic coefficient of the spring will continuously decrease. This phenomenon is particularly obvious in high-frequency use scenarios of the mold, which will cause the magnetic ring mold core to be unable to be ejected smoothly, thus affecting the demolding efficiency. Since the spring is placed inside the lower mold, it is difficult for workers to replace it quickly, thus affecting the production efficiency of magnetic ring molding. To address this, a high-speed motor Hall sensor speed measurement magnetic ring molding device is proposed. Utility Model Content

[0004] Therefore, it is necessary to provide a high-speed motor Hall effect speed measuring magnetic ring forming device to address the above-mentioned technical problems.

[0005] To solve the above-mentioned technical problems, this utility model solves the problem that placing the spring inside the lower mold makes it difficult for workers to quickly replace it, thus affecting the production efficiency of magnetic ring forming.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A high-speed motor Hall effect speed measuring magnetic ring forming device, comprising:

[0008] The lower mold has a magnetic ring mold core installed at the top of its inner cavity, and abutment posts are fixedly inserted on both sides of the bottom end of the lower mold.

[0009] Two mounting discs are placed at the bottom of the magnetic ring mold core. Through holes are opened on both sides of the surface of the bottom mounting disc. Multiple mold release components are installed between the two mounting discs. The top of the abutment slides through the inner cavity of the through hole on the same side, and wedge-shaped positioning blocks are provided on both sides of it. A reset component is provided in the inner cavity of the abutment. A disassembly component is provided at the bottom of the lower mold.

[0010] In a preferred embodiment of the high-speed motor Hall induction speed measuring magnetic ring forming device provided by this utility model, one side of the two wedge-shaped positioning blocks slides through the surface of the same side abutment column to its inner cavity, and the two mounting plates and multiple demolding components form a demolding module for the magnetic ring forming.

[0011] In a preferred embodiment of the high-speed motor Hall induction speed measuring magnetic ring forming device provided by this utility model, the reset component includes a limiting rod fixed to the top of the inner wall of the abutment column, and connecting blocks are slidably connected to both ends of the limiting rod. The bottom ends of the two connecting blocks are respectively fixedly connected to two wedge-shaped positioning blocks.

[0012] In a preferred embodiment of the high-speed motor Hall induction speed measuring magnetic ring forming device provided by this utility model, a pair of springs are connected between the two wedge-shaped positioning blocks on the same side.

[0013] In a preferred embodiment of the high-speed motor Hall induction speed measuring magnetic ring forming device provided by this utility model, an extrusion block is slidably connected to the bottom of the inner cavity of the support column, and the extrusion block is in contact with the chamfered edge of the wedge-shaped positioning block.

[0014] In a preferred embodiment of the high-speed motor Hall induction speed measuring magnetic ring forming device provided by this utility model, the easy-to-disassemble component includes a rotating cover that is threadedly connected to the bottom of the lower mold, and a rotating ring is rotatably connected to the middle of the inner wall of the rotating cover.

[0015] In a preferred embodiment of the high-speed motor Hall induction speed measuring magnetic ring forming device provided by this utility model, the rotating ring and the rotating cover are designed to be inseparable.

[0016] In a preferred embodiment of the high-speed motor Hall induction speed measuring magnetic ring forming device provided by this utility model, connecting rods are fixedly connected to both sides of the top end of the rotating ring, and the top ends of the two connecting rods extend into the inner cavity of the abutment and are fixedly connected to the extrusion block.

[0017] In a preferred embodiment of the high-speed motor Hall induction speed measuring magnetic ring forming device provided by this utility model, the top end of the mounting plate is in contact with the bottom end of the magnetic ring mold core, and the abutment and the demolding component are staggered.

[0018] In a preferred embodiment of the high-speed motor Hall induction speed measuring magnetic ring forming device provided by this utility model, the wedge-shaped positioning block is placed on the top of the bottom mounting plate, and the two wedge-shaped positioning blocks are symmetrically distributed.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] This utility model provides a high-speed motor Hall effect sensor magnetic ring forming device. By combining an installation plate with multiple demolding components to form a demolding module, and with the help of a wedge-shaped positioning block, the demolding module and the lower mold can be modularly assembled. When it is necessary to replace the demolding component, simply release the wedge-shaped positioning block from limiting the demolding module and remove the demolding module from the inside of the lower mold. This allows workers to maintain and replace the demolding component from the outside of the lower mold, solving the problem of inconvenient disassembly and maintenance of the demolding component inside the lower mold cavity, and ensuring the continuous production efficiency of the high-speed motor Hall effect sensor magnetic ring.

[0021] This utility model provides a high-speed motor Hall sensor speed measuring magnetic ring forming device. By setting up a disassembly part, when it is necessary to release the limit of the mold release module, rotating the rotating cover causes the connecting rod to drive the extrusion block to move downward, thereby causing the wedge positioning block to lose the extrusion force. Under the action of the spring, it moves and retracts into the inner cavity of the abutment column, no longer protruding from the surface of the abutment column. This realizes the synchronous unlocking of the wedge positioning blocks on the two abutment columns. The operation is simple and the convenience of releasing the limit of the mold release module is high. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 A schematic diagram of the overall structure of this utility model;

[0024] Figure 2 This utility model provides a structural schematic diagram showing the separation of the lower mold and the rotating cover;

[0025] Figure 3 A cross-sectional view provided for this utility model;

[0026] Figure 4 Provided for this utility model Figure 3 A schematic diagram of the partially disassembled structure;

[0027] Figure 5 A partial structural schematic diagram is provided for this utility model;

[0028] Figure 6 Provided for this utility model Figure 5 A partial sectional view.

[0029] The markings in the diagram are explained as follows:

[0030] 1. Lower mold; 2. Magnetic ring mold core; 3. Support column; 4. Mounting plate; 5. Through hole; 6. Demolding component; 7. Wedge positioning block; 8. Reset component; 81. Limiting rod; 82. Connecting block; 83. Spring; 84. Extrusion block; 9. Easy-to-remove component; 91. Rotating cover; 92. Rotating ring; 93. Connecting rod. Detailed Implementation

[0031] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention 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 invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention. Example

[0032] Please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 A high-speed motor Hall sensor speed measuring magnetic ring forming device includes a lower mold 1. A magnetic ring core 2 is installed on the top of the inner cavity of the lower mold 1, which directly carries rare earth magnetic powder. It is formed by extrusion in cooperation with the upper mold. The shape of its inner wall determines the outer diameter, thickness and magnetic pole distribution slot of the magnetic ring. Abutment 3 is fixedly inserted on both sides of the bottom end of the lower mold 1.

[0033] Two mounting plates 4 are placed at the bottom of the magnetic ring mold core 2. Both sides of the bottom mounting plate 4 are provided with through holes 5. Multiple demolding components 6 are installed between the two mounting plates 4. Refer to the demolding mechanism in CN219497540U for comparison. The top of the abutment 3 slides through the inner cavity of the through hole 5 on the same side, and wedge-shaped positioning blocks 7 are provided on both sides. When extended, it is locked into the edge of the through hole 5 of the bottom mounting plate 4 to lock the demolding module. When retracted, the limit is released. The inner cavity of the abutment 3 is provided with a reset component 8, and the bottom of the lower mold 1 is provided with a disassembly component 9.

[0034] Preferably, one side of each of the two wedge-shaped positioning blocks 7 slides through the surface of the same side abutment 3 to its inner cavity. The two mounting plates 4 and multiple demolding components 6 form a demolding module for the magnetic ring after molding. The top end of the top mounting plate 4 contacts the bottom end of the magnetic ring mold core 2. The abutment 3 and the demolding components 6 are staggered. The wedge-shaped positioning blocks 7 are placed on the top of the bottom mounting plate 4. The two wedge-shaped positioning blocks 7 are symmetrically distributed.

[0035] Preferably, the reset component 8 includes a limiting rod 81 fixed to the top of the inner wall of the abutment 3, which restricts the movement trajectory of the connecting block 82, ensures that the wedge-shaped positioning block 7 slides horizontally, and avoids displacement. Both ends of the limiting rod 81 are slidably connected to the connecting block 82. The bottom ends of the two connecting blocks 82 are respectively fixedly connected to the two wedge-shaped positioning blocks 7. A pair of springs 83 are connected between the two wedge-shaped positioning blocks 7 on the same side to provide reset pull force. When the pressing block 84 moves down, it pulls the wedge-shaped positioning block 7 back into the inner cavity of the abutment 3. The bottom of the inner cavity of the abutment 3 is slidably connected to the pressing block 84, which is driven up and down by the connecting rod 93. When pressing, it pushes the wedge-shaped positioning blocks 7 to move in opposite directions. The pressing block 84 contacts the chamfered edge of the wedge-shaped positioning block 7.

[0036] Preferably, the easy-to-disassemble part 9 includes a rotating cover 91 that is threaded to the bottom of the lower mold 1. When rotating and moving up and down, the two extrusion blocks 84 move up and down synchronously through the connecting rod 93, which is used to control the lifting and lowering of the extrusion blocks 84. A rotating ring 92 is rotatably connected to the middle of the inner wall of the rotating cover 91. The rotating ring 92 and the rotating cover 91 are designed to be inseparable. Connecting rods 93 are fixedly connected to both sides of the top of the rotating ring 92. The tops of the two connecting rods 93 extend to the inner cavity of the abutment 3 and are fixedly connected to the extrusion blocks 84.

[0037] The operation process of the high-speed motor Hall effect speed measuring magnetic ring forming device provided by this utility model is as follows: When the operator operates, the demolding module, which consists of two mounting plates 4 and a demolding component 6, is first placed inside the lower mold 1. The tops of the two abutments 3 pass through the two through holes 5 of the bottom mounting plate 4. At this time, the wedge-shaped positioning block 7 is higher than the bottom mounting plate 4. Then, the operator rotates the rotating cover 91, which drives the rotating ring 92 and the connecting rod 93 to move upward, thereby causing the extrusion block 84 in the inner cavity of the abutment 3 to move upward. The inclined plane pushes the two wedge-shaped positioning blocks 7 to move relative to each other, protruding from the surface of the abutment 3, thus fixing the demolding module. Then, the magnetic ring mold core 2 is placed, and the top mounting plate 4 is connected to it. During the magnetic ring forming stage, the upper mold presses down to compress the rare earth magnetic powder inside the magnetic ring core 2, causing the magnetic ring core 2 to move downwards until the top mounting plate 4 abuts against the abutment post 3. The upper mold then presses down further to form the magnetic ring. After forming, the upper mold moves upwards, and the demolding component 6 pushes part of the magnetic ring core 2 out of the lower mold 1. Then, the staff removes the magnetic ring core 2 and the magnetic ring. When maintenance is required, the rotating cover 91 at the bottom of the lower mold 1 is rotated again, causing the extrusion block 84 to move downwards synchronously, releasing the pressure on the wedge-shaped positioning block 7. The spring 83 pulls the wedge-shaped positioning block 7 back into the cavity of the abutment post 3, simultaneously unlocking the demolding module. After removal, the demolding component 6 is maintained or replaced.

[0038] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0039] Obviously, the embodiments described above are only some embodiments of this utility model, not all embodiments. The accompanying drawings show preferred embodiments of this utility model, but do not limit the patent scope of this utility model. This utility model can be implemented in many different forms; rather, the purpose of providing these embodiments is to provide a more thorough and comprehensive understanding of the disclosure of this utility model. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing specific embodiments, or make equivalent substitutions for some of the technical features. Any equivalent structures made using the content of this utility model specification and drawings, directly or indirectly applied to other related technical fields, are similarly within the patent protection scope of this utility model.

Claims

1. A high-speed motor Hall induction speed measurement magnetic ring forming device, characterized in that, It includes: The lower mold (1) has a magnetic ring mold core (2) installed on the top of the inner cavity of the lower mold (1), and abutment pillars (3) are fixedly inserted on both sides of the bottom end of the lower mold (1). Two mounting discs (4) are placed at the bottom of the magnetic ring mold core (2). Through holes (5) are provided on both sides of the surface of the bottom mounting disc (4). Multiple demolding components (6) are installed between the two mounting discs (4). The top of the abutment (3) slides through the inner cavity of the through hole (5) on the same side, and wedge-shaped positioning blocks (7) are provided on both sides. The inner cavity of the abutment (3) is provided with a reset component (8). The bottom of the lower mold (1) is provided with a disassembly component (9).

2. The high-speed motor Hall induction speed measuring magnetic ring forming equipment according to claim 1, characterized in that, One side of each of the two wedge-shaped positioning blocks (7) slides through the surface of the same side abutment (3) to its inner cavity. The two mounting discs (4) and multiple demolding components (6) form a demolding module for the magnetic ring after molding.

3. The high-speed motor Hall induction speed measuring magnetic ring forming device according to claim 1, characterized in that, The reset component (8) includes a limiting rod (81) fixed to the top of the inner wall of the abutment (3). Both ends of the limiting rod (81) are slidably connected to connecting blocks (82). The bottom ends of the two connecting blocks (82) are respectively fixedly connected to the two wedge-shaped positioning blocks (7).

4. The high-speed motor Hall induction speed measuring magnetic ring forming device according to claim 1, characterized in that, A pair of springs (83) are connected between the two wedge-shaped positioning blocks (7) on the same side.

5. The high-speed motor Hall induction speed measuring magnetic ring forming apparatus according to claim 1, characterized in that, The bottom of the inner cavity of the abutment (3) is slidably connected to an extrusion block (84), which is in contact with the chamfered edge of the wedge-shaped positioning block (7).

6. The high-speed motor Hall effect speed measuring magnetic ring forming device according to claim 1, characterized in that, The disassembly component (9) includes a rotating cover (91) that is threaded to the bottom of the lower mold (1), and a rotating ring (92) is rotatably connected to the middle of the inner wall of the rotating cover (91).

7. The high-speed motor Hall induction speed measuring magnetic ring forming apparatus according to claim 6, characterized in that, The rotating ring (92) and the rotating cover (91) are designed to be inseparable.

8. The high-speed motor Hall induction speed measuring magnetic ring forming apparatus according to claim 6, characterized in that, Connecting rods (93) are fixedly connected to both sides of the top of the rotating ring (92). The tops of the two connecting rods (93) extend into the inner cavity of the abutment (3) and are fixedly connected to the extrusion block (84).

9. The high-speed motor Hall induction speed measuring magnetic ring forming apparatus according to claim 1, characterized in that, The top end of the mounting plate (4) is in contact with the bottom end of the magnetic ring mold core (2), and the abutment (3) and the demolding component (6) are staggered.

10. The high-speed motor Hall induction speed measuring magnetic ring forming apparatus according to claim 1, characterized in that, The wedge-shaped positioning block (7) is placed on top of the bottom mounting plate (4), and the two wedge-shaped positioning blocks (7) are symmetrically distributed.

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