Magnet pressing tool for coil assembly

Abstract

The invention relates to the technical field of coil assemblies, in particular to a coil assembly magnet pressing tool which comprises a coil assembly and magnets, the coil assembly is of a rotor structure, a plurality of diagonal grooves are axially formed in the coil assembly, the magnets are fixedly installed in the diagonal grooves, and the coil assembly magnet pressing tool further comprises a base plate and a positioning clamp. Through combination of rigid constraint of the positioning frame and rolling adsorption of the strong magnetic restoration shaft, the magnetic attraction offset force is counteracted, and axial centering of the magnets is ensured; and a dual cleaning mechanism of the gluing layer and the comb tooth pieces is adopted, so that chip pollution is eliminated, and the cracking risk is reduced. The air groove guide surface accurately guides the air flow into the mounting gap to form an air floatation effect to reduce the frictional resistance; and the tips secondarily adsorb and transfer scraps to the comb tooth pieces, dynamic self-cleaning in the installation process is achieved, and the insulation reliability is improved. A magnetic strip adsorption type carrying frame is matched with a 0-90-degree turnover mechanism, so that seamless connection from coarse positioning to fine decoration of multiple sections of magnets is realized; the pressing rod torsion groove is designed to automatically avoid / press down, so that the single-section installation time is shortened, and the yield is improved.

Claims

1. A coil assembly pressing magnet tooling, comprising a coil assembly (1) and a magnet (2), characterized in that: The coil assembly (1) is a rotor structure. Multiple diagonal grooves (11) are axially formed in the coil assembly (1). The magnet (2) is fixedly installed in the diagonal grooves (11). In addition, it further includes a substrate (3). The coil assembly (1) is fixedly installed in the middle of the substrate (3). Base columns (31) are fixedly installed at the four peripheral positions of the substrate (3). A pressure rod (32) is movably installed in the base column (31) by means of hydraulic pressure. The pressure rod (32) contacts the magnet (2). Positioning clips (4). The positioning clips (4) are slidably installed on the substrate (3). There are multiple positioning clips (4), which are arranged in a "U" shape and straddle both sides of the diagonal groove (11). A positioning frame (42) is fixedly installed on the positioning clip (4) through a branch pipe (41).

2. The coil assembly pressing magnet tooling according to claim 1, characterized in that: The inner wall of the positioning frame (42) is adapted to the inner wall of the diagonal groove (11). The magnet (2) enters the diagonal groove (11) from the position of the positioning frame (42).

3. The coil assembly pressing magnet tooling according to claim 1, characterized in that: A correction shaft (43) made of a strong magnetic material is installed at the upper end of the positioning frame (42) by means of rotational fit. The outer contour of the correction shaft (43) includes an adhesive coating (431).

4. The coil assembly pressing magnet tooling according to claim 1, characterized in that: Air grooves (44) are circumferentially formed in the inner wall of the positioning frame (42). An air duct (45) connected to a number of the air grooves (44) is arranged inside the positioning frame (42), and the air duct (45) is connected to the branch pipe (41).

5. The coil assembly pressing magnet tooling according to claim 1, characterized in that: One end of the air groove (44) close to the diagonal groove (11) is provided with a guiding surface (441) for guiding air flow into the gap of the diagonal groove (11).

6. The coil assembly pressing magnet tooling according to claim 3, characterized in that: The upper end of the positioning frame (42) is provided with a conical tip (46) facing the axis direction of the correction shaft (43), and the tip (46) is also made of a strong magnetic material.

7. The coil assembly pressing magnet tooling according to claim 3, characterized in that: A comb-shaped sheet (421) is fixedly installed at the outer wall position of the positioning frame (42). The upper part of the comb-shaped sheet (421) is resiliently bent and adhered to the surface of the adhesive coating (431).

8. The coil assembly pressing magnet tooling according to claim 1, characterized in that: A "C"-shaped carrier frame (47) is rotatably installed on the positioning frame (42). The carrier frame (47) can deflect within 0 to 90 degrees on the positioning frame (42). The magnet (2) is placed in the carrier frame (47).

9. The coil assembly pressing magnet tooling according to claim 8, characterized in that: The carrier frame (47) is made of a non-magnetic material. A magnetic strip (471) magnetically adsorbed to the magnet (2) is arranged on the inner wall of the middle upper part of the carrier frame (47). Ball-shaped grooves for installing balls (472) are uniformly formed at the lower part of the carrier frame (47).

10. The coil assembly pressing magnet tooling according to claim 1, characterized in that: The end of the pressure rod (32) is provided with a flat downward pressing surface matching the end of the magnet (2). A torsion groove (33) is formed in the outer wall of the telescopic part of the pressure rod (32). A protrusion matching the torsion groove (33) is fixedly arranged at the inner wall position of the base column (31).

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