用于外转子电机贴磁钢的工装

Abstract

本实用新型涉及一种用于外转子电机贴磁钢的工装，其包括移动模座、固定模座以及预定位件，固定模座外壁上间隔设置有多个定位槽部，定位槽部靠近固定模座中心的内侧设置有吸附部；预定位件套设在固定模座的外侧，预定位件上设置有与定位槽部一一对应的进给部，进给部沿着预定位件的径向延伸至与定位槽部连通；其中，移动模座上还设置有与定位槽部一一对应的推杆，推杆被配置为用于将定位槽部内的磁钢推送至与外转子连接。移动模座的一次下压动作可以带动推杆下移，同时实现一个外转子内壁上全部磁钢的连接，装配效率高；各个推杆向下的作用力一致，使得磁钢与外转子的定位准确，有利于避免装配偏差，装配质量高。

Claims

1. A tooling for attaching magnets to an external rotor motor, characterized in that, include: Movable mold base; A fixed mold base has multiple positioning grooves spaced apart on its outer wall, and an adsorption part is provided on the inner side of the positioning grooves near the center of the fixed mold base. A prepositioning component is sleeved on the outside of the fixed mold base. The prepositioning component is provided with a feeding part that corresponds one-to-one with the positioning groove. The feeding part extends radially along the prepositioning component to communicate with the positioning groove. The movable mold base is also provided with push rods that correspond one-to-one with the positioning slots. The push rods are configured to push the magnets in the positioning slots to connect with the outer rotor.

2. The tooling for attaching magnets to an external rotor motor according to claim 1, characterized in that, The fixed mold base includes a support base and a mold core formed on the support base. The mold core is annular, the positioning groove is formed on the outer wall of the mold core, and the adsorption part is installed inside the mold core.

3. The tooling for attaching magnets to an external rotor motor according to claim 2, characterized in that, On the bottom wall of the positioning groove near the adsorption part, there is a relief recess extending along the axial direction of the mold core. The cross-sectional shape of the relief recess is arc-shaped, which is used to provide relief for the movement of the push rod.

4. The tooling for attaching magnets to an external rotor motor according to claim 2, characterized in that, The outer wall of the mold core is in contact with the inner wall of the prepositioning member, and a feeding gap is formed between the prepositioning member and the mold core so that the magnet moves downward through the feeding gap under the push of the push rod.

5. The tooling for attaching magnets to an external rotor motor according to claim 4, characterized in that, The widths of the feeding section and the positioning groove are both adapted to the width of the magnet, and the thickness of the blanking gap along the radial direction of the mold core is adapted to the thickness of the magnet.

6. The tooling for attaching magnets to an external rotor motor according to claim 2, characterized in that, The fixed mold base is also provided with a guide member, and the movable mold base moves up and down relative to the fixed mold base under the guidance of the guide member.

7. The tooling for attaching magnets to an external rotor motor according to claim 6, characterized in that, The guide component is a guide post extending upward on the supporting chassis. A guide rail is also formed on the outer side of the guide post. A guide hole is provided on the movable mold base. A guide groove that matches the shape of the guide rail is formed on the inner wall of the guide hole. The guide hole is sleeved on the guide post, and the guide rail is connected to the guide groove.

8. The tooling for attaching magnets to an external rotor motor according to claim 2, characterized in that, The prepositioning member is detachably connected to the fixed mold base. The prepositioning member is annular. One of the inner wall of the prepositioning member and the outer wall of the mold core is provided with a limiting recess, and the other is provided with a limiting protrusion. The limiting protrusion is connected to the corresponding limiting recess to limit the relative position between the prepositioning member and the fixed mold base.

9. The tooling for attaching magnets to an external rotor motor according to claim 1, characterized in that, The movable mold base has multiple connecting holes spaced apart along the circumferential direction. Internal threads are formed in the connecting holes. A threaded section is formed on the push rod, and the push rod is threadedly connected to the corresponding connecting hole.

10. The tooling for attaching magnets to an external rotor motor according to claim 2, characterized in that, The supporting chassis and / or the movable mold base are also provided with weight reduction holes.

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