Motor rotor magnetic tile automatic press fitting tool
By designing an automated pressing fixture, the problem of low efficiency in manual operation was solved, and the automated pressing of motor rotor magnets was realized, improving production efficiency and pressing accuracy.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHEJIANG DAYANG FAN CO LTD
- Filing Date
- 2025-06-24
- Publication Date
- 2026-06-23
AI Technical Summary
In the current motor rotor magnet assembly process, manual operation is inefficient and errors are difficult to control, resulting in low production efficiency.
An automatic pressing fixture was designed, comprising an upper tooling mold, a lower mold outer tooling, a tooling inner support, an electric cylinder connector, and a lower mold tooling pad. The fixture is connected to the inner support via a drive shaft to transmit power, and provides stable support through the modular design of the pressure cap connecting groove on the inner support body and the inner support pressure cap.
The automated pressing of motor rotor magnets has been achieved, improving production efficiency and ensuring pressing accuracy.
Smart Images

Figure CN224401342U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of motor assembly equipment technology, and relates to an automatic pressing fixture for motor rotor magnets. Background Technology
[0002] The automatic pressing fixture for motor rotor magnets uses mechanical pressure to precisely press the magnets into the slots of the rotor steel shell, completing the magnet assembly of the motor rotor. It is a key piece of equipment in the production of permanent magnet motors.
[0003] Chinese patent publication number CN218639455U discloses a tooling for bonding six magnetic tiles, including a base and a positioning seat. The base is a hollow cylindrical structure with an open top. The positioning seat is also a cylindrical structure. The lower section of the positioning seat is embedded in the opening of the base and fixed on both sides with fixing bolts. The diameter of the upper section of the positioning seat is smaller than that of the lower section. Multiple positioning bosses are arranged on the surface of the upper section of the positioning seat. The grooves formed between adjacent positioning bosses are inwardly recessed, which are the positioning grooves. A through hole is provided in the center of the positioning seat. An adjusting screw is provided in the through hole. The adjusting screw is threaded and passes through the bottom of the positioning seat. The connection between the lower section of the positioning seat and the fixing bolts is a planar structure.
[0004] The six-piece magnetic tile bonding fixture provided by this patent requires coating the magnetic tiles with AB glue and then placing them between the inner wall of the machine housing and the positioning groove. It mainly relies on manual operation to place the magnetic tiles and adjust the adjusting screw, resulting in low production efficiency and difficulty in controlling human operation errors. Utility Model Content
[0005] The purpose of this invention is to address the aforementioned problems in the existing technology by providing an automatic pressing fixture for motor rotor magnets.
[0006] The objective of this utility model can be achieved through the following technical solution: An automatic pressing fixture for motor rotor magnets includes an upper fixture mold, a lower outer fixture, an inner fixture support, an electric cylinder connector, and a lower fixture pad. The upper fixture mold and the lower outer fixture are generally cylindrical in shape, and through holes are provided inside the upper fixture mold, the lower outer fixture, and the lower fixture pad. A connecting concave ring and a connecting groove are provided at the end of the upper fixture mold, and a connecting convex ring and a connecting convex body are formed at one end of the lower outer fixture. The upper tooling mold and the lower outer tooling are connected by a connecting concave ring and a connecting groove, as well as a connecting convex ring and a connecting convex body. The tooling inner support is fixedly installed inside the lower outer tooling. One end of the tooling inner support has a transmission hole. The lower tooling pad is fixedly installed at the other end of the lower outer tooling. The electric cylinder connector is installed inside the lower outer tooling and the lower tooling pad. One end of the electric cylinder connector is provided with a transmission shaft. The transmission shaft extends into the transmission hole to connect the electric cylinder connector with the tooling inner support.
[0007] In the aforementioned automatic pressing fixture for motor rotor magnets, the inner support of the fixture includes an inner support body, an inner support cover, an inner support strip, and an inner support top ring. The surface of the inner support body is provided with a plurality of cover connecting grooves arranged in a circumferential array. The inner support cover is provided with a connecting hole, and the cover connecting groove is provided with an installation groove. The inner support cover is installed in the cover connecting groove. The inner support strip passes through the connecting hole and is fixed in the installation groove. The inner support strip is connected to the inner support body and the inner support cover. The inner support top ring is sleeved and fixed on the outside of the inner support body.
[0008] In the aforementioned automatic pressing fixture for motor rotor magnets, one end of the electric cylinder connector has several fixing holes.
[0009] In the aforementioned automatic pressing fixture for motor rotor magnets, a connecting retaining ring is formed in the through hole at one end of the upper fixture mold.
[0010] Compared with the prior art, the automatic pressing fixture for motor rotor magnets provided by this utility model has the following advantages: 1. Power transmission is achieved by the transmission shaft extending into the transmission hole of the fixture's inner support. This design can very conveniently integrate the electric cylinder, an automated actuator, with this utility model; 2. The inner support bars in the fixture's inner support are installed and fixed through the pressure cover connecting grooves arranged in a circular array on the inner support body and the inner support pressure cover, which can provide uniform and stable support for the rotor. Attached Figure Description
[0011] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0012] Figure 2 This is a schematic diagram of the exploded structure of this utility model;
[0013] Figure 3 This is a schematic diagram of the exploded structure of the internal support tooling.
[0014] In the diagram: 1. Upper tooling mold; 11. Connecting concave ring; 12. Connecting groove; 13. Connecting retaining ring; 2. Lower mold outer tooling; 21. Connecting convex ring; 22. Connecting convex body; 3. Tooling inner support; 31. Inner support body; 311. Transmission hole; 312. Pressure cap connecting groove; 313. Mounting groove; 32. Inner support pressure cap; 321. Connecting hole; 33. Inner support strip; 34. Inner support top ring; 4. Electric cylinder connector; 41. Transmission shaft; 42. Fixing hole; 5. Lower mold tooling pad block. Detailed Implementation
[0015] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.
[0016] like Figures 1 to 3As shown, this embodiment includes an upper tooling mold 1, a lower outer tooling 2, a tooling inner support 3, an electric cylinder connector 4, and a lower tooling pad 5. The upper tooling mold 1 and the lower outer tooling 2 are cylindrical in shape, and through holes are provided inside the upper tooling mold 1, the lower outer tooling 2, and the lower tooling pad 5. A connecting concave ring 11 and a connecting groove 12 are provided at the end of the upper tooling mold 1, and a connecting convex ring 21 and a connecting protrusion 22 are formed at one end of the lower outer tooling 2. The upper tooling mold 1 and the lower outer tooling 2 are connected by the connecting concave ring 11 and the connecting groove 12 to the connecting convex ring 21 and the connecting protrusion 22 to achieve fast and accurate docking.
[0017] like Figures 1 to 3 As shown, the tooling inner support 3 is fixedly installed inside the lower mold outer tooling 2, and a transmission hole 311 is opened at one end. The lower mold tooling pad 5 is fixedly installed at the other end of the lower mold outer tooling 2. The electric cylinder connector 4 is installed inside the lower mold outer tooling 2 and the lower mold tooling pad 5. The transmission shaft 41 at one end of the electric cylinder connector 4 extends into the transmission hole 311, so that the electric cylinder connector 4 is connected to the tooling inner support 3, thus constructing a power transmission path.
[0018] like Figures 2 to 3 As shown, the tooling inner support 3 further includes an inner support body 31, an inner support cover 32, an inner support strip 33, and an inner support top ring 34. The inner support body 31 has several cover connecting grooves 312 arranged in a circumferential array on its surface. The inner support cover 32 has connecting holes 321. The cover connecting grooves 312 have mounting grooves 313. The inner support cover 32 is installed in the cover connecting grooves 312. The inner support strip 33 passes through the connecting holes 321 and is fixed in the mounting grooves 313, and is connected to the inner support body 31 and the inner support cover 32 as a whole. The inner support top ring 34 is sleeved and fixed on the outside of the inner support body 31. Through modular component design, the assembly convenience and structural stability are improved.
[0019] To elaborate further, such as Figure 2 As shown, one end of the electric cylinder connector 4 has several fixing holes 42 for connecting and fixing with external electric cylinders and other power components.
[0020] To elaborate further, such as Figure 1 As shown, a connecting retaining ring 13 is formed in the through hole at one end of the upper tooling mold 1, which can assist in the positioning and installation of workpieces such as magnetic tiles and ensure the pressing accuracy.
[0021] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.
[0022] Although this document uses a variety of terms, the possibility of using other terms is not excluded. These terms are used merely for the convenience of describing and explaining the essence of this invention; interpreting them as any additional limitation would contradict the spirit of this invention.
Claims
1. An automatic pressing fixture for motor rotor magnets, comprising an upper fixture mold (1), a lower outer fixture (2), a fixture inner support (3), an electric cylinder connector (4), and a lower fixture pad (5), characterized in that: The upper tooling mold (1) and the lower outer tooling (2) are cylindrical in shape, and through holes are provided inside the upper tooling mold (1), the lower outer tooling (2), and the lower tooling pad (5). The upper tooling mold (1) has a connecting concave ring (11) and a connecting groove (12) at one end, and a connecting convex ring (21) and a connecting convex body (22) are formed at one end of the lower outer tooling (2). The upper tooling mold (1) and the lower outer tooling (2) are connected by the connecting concave ring (11) and the connecting groove (12), as well as the connecting convex ring (21) and the connecting convex body (22). The body (22) is connected, the tooling inner support (3) is fixedly installed inside the lower mold outer tooling (2), one end of the tooling inner support (3) is provided with a transmission hole (311), the lower mold tooling pad (5) is fixedly installed at the other end of the lower mold outer tooling (2), the electric cylinder connector (4) is installed inside the lower mold outer tooling (2) and the lower mold tooling pad (5), one end of the electric cylinder connector (4) is provided with a transmission shaft (41), the transmission shaft (41) extends into the transmission hole (311) so that the electric cylinder connector (4) is connected to the tooling inner support (3).
2. The automatic pressing fixture for motor rotor magnets according to claim 1, characterized in that: The tooling inner support (3) includes an inner support body (31), an inner support cover (32), an inner support strip (33), and an inner support top ring (34). The inner support body (31) has several cover connecting grooves (312) arranged in a circular array on its surface. The inner support cover (32) has a connecting hole (321) and an installation groove (313) in the cover connecting groove (312). The inner support cover (32) is installed in the cover connecting groove (312). The inner support strip (33) passes through the connecting hole (321) and is fixed in the installation groove (313). The inner support strip (33) is connected to the inner support body (31) and the inner support cover (32). The inner support top ring (34) is sleeved and fixed on the outside of the inner support body (31).
3. The automatic pressing fixture for motor rotor magnets according to claim 1, characterized in that: The electric cylinder connector (4) has several fixing holes (42) at one end.
4. The automatic pressing fixture for motor rotor magnets according to claim 1, characterized in that: A connecting retaining ring (13) is formed in the through hole at one end of the upper tooling mold (1).