CN-121261487-B - Motor stator core lamination equipment

Abstract

The invention relates to the technical field of lamination of stator cores of electric automobile motors, in particular to motor stator core lamination equipment, which comprises a frame, wherein a workbench is arranged on the frame, a positioning disc is arranged on the workbench, the positioning disc is used for bearing and positioning silicon steel sheets, a pressure dividing ring is arranged between N adjacent silicon steel sheets, and an elastic inclined plane is arranged on the end face of the pressure dividing ring.

Inventors

• TANG HAIJUN

Assignees

• 东莞市运成金属塑胶制品有限公司

Dates

Publication Date

20260512

Application Date

20251016

Claims (5)

1. 1. A motor stator core lamination apparatus, comprising: The stator comprises a frame, wherein a workbench is arranged on the frame, a positioning disc is arranged above the workbench and used for bearing and positioning silicon steel sheets, and a plurality of silicon steel sheets are mutually stacked to form a stator core; The press assembly is used for extruding the plurality of silicon steel sheets on the positioning disc so that the plurality of silicon steel sheets are mutually attached; The pressure dividing rings are positioned between N adjacent silicon steel sheets, N is a positive integer, the upper end face and the lower end face of each pressure dividing ring are elastic inclined planes, and the thickness of each pressure dividing ring is gradually increased along the radial direction from the inner diameter to the outer diameter; The pressure dividing ring comprises an inner layer hard ring and two outer layer elastic rings, wherein the outer Zhou Jun of the upper end face and the lower end face of the inner layer hard ring are connected with the outer layer elastic rings in a sealing way, a cavity is formed between the inner layer hard ring and the outer layer elastic rings, hydraulic oil is filled in the cavity, the vertical distance between the outer layer elastic rings and the inner layer hard ring is gradually increased along the radial direction from the inner diameter to the outer diameter, and the upper end face and the lower end face of the inner layer hard ring are provided with plane spiral grooves; three positioning rods sliding along the radial direction of the positioning disc are arranged on the positioning disc, the three positioning rods are uniformly distributed along the circumferential direction of the positioning disc, the diameter of the pressure dividing ring is the same as that of the silicon steel sheet, and the three positioning rods are positioned on the peripheries of the pressure dividing ring and the silicon steel sheet; The positioning device comprises a workbench, and is characterized in that a positioning ring frame is fixedly arranged on the workbench, three sliding plates are radially arranged on the positioning ring frame in a sliding manner, are uniformly distributed along the circumferential direction of the positioning ring frame, are fixedly connected with three positioning rods respectively, a vertically arranged telescopic cylinder is fixedly arranged on one of the three sliding plates, and the telescopic end of the telescopic cylinder is coaxial with and fixedly connected with one of the three positioning rods; the workbench is provided with a driving assembly, and the driving assembly can drive the three positioning rods to synchronously move along the radial direction; The driving assembly comprises a hydraulic ring and a rotating ring, the hydraulic ring is fixedly arranged on the workbench, the rotating ring is rotationally connected with the hydraulic ring, three inclined grooves are formed in the end face of the rotating ring and are uniformly distributed along the circumferential direction of the rotating ring, a sliding block which slides radially along the hydraulic ring is arranged on the workbench, one end of the sliding block is slidably arranged in the inclined groove, and the sliding block is connected with the positioning rod.
2. 2. The motor stator core lamination apparatus of claim 1, wherein two handles are fixedly disposed on an outer periphery of the inner rigid ring.
3. 3. The motor stator core laminating equipment according to claim 1, wherein a rotating sleeve is rotatably arranged in the hydraulic ring, a plurality of diagonal strips are fixedly arranged on the side wall of the rotating sleeve, the diagonal strips incline in the vertical direction, the top end of the rotating sleeve is meshed with the rotating ring, a sliding ring is axially arranged in the hydraulic ring in a sliding manner, a connecting diagonal block is arranged at the inner periphery of the sliding ring, the connecting diagonal block is identical to the diagonal strips in the inclination direction, the connecting diagonal block is positioned between two adjacent diagonal strips, a sealing cavity is formed between the sliding ring and the hydraulic ring, and hydraulic oil is filled in the sealing cavity.
4. 4. The motor stator core lamination apparatus of claim 3, wherein an oil inlet is provided at an outer periphery of the hydraulic ring, the oil inlet being in communication with the sealed cavity.
5. 5. The motor stator core lamination apparatus of claim 1, wherein the press assembly comprises a hydraulic cylinder and a top plate, the hydraulic cylinder is fixedly disposed on the frame, the hydraulic cylinder is vertically disposed, and a telescopic end of the hydraulic cylinder is connected to the top plate.

Description

Motor stator core lamination equipment Technical Field The invention relates to the technical field of lamination of motor stator cores of electric automobiles, in particular to lamination equipment of motor stator cores. Background The electric automobile motor is used as a core component of a new energy automobile, the technical development of the electric automobile motor directly influences the performance, energy efficiency and cost of the automobile, the power supply provides electric energy for a driving motor of the electric automobile, the electric automobile motor converts the electric energy of the power supply into mechanical energy, and wheels and a working device are directly driven through a transmission device or directly. The motor stator iron core lamination is a key process in motor manufacturing, the traditional iron core is formed by laminating silicon steel sheets formed by stamping, the purpose of reducing eddy current loss and improving magnetic conductivity is achieved, the early lamination process is fixed through riveting or welding, but deformation or insulation damage of the iron core is easy to cause, along with technological progress, the self-adhesive coating silicon steel sheets and the laser welding technology are gradually applied, and lamination precision and mechanical strength are improved. At present, a high-precision motor generally adopts a sectional lamination method, namely, a layer of less silicon steel sheets are laminated firstly, and then a plurality of layers of silicon steel sheets are laminated into a whole, and a small number of lamination sheets at the first layer of the method can be positioned accurately, so that the accumulated error of subsequent lamination sheets can be reduced effectively, the magnetic circuit distribution is improved, the eddy current loss and noise of an iron core are reduced, the uneven stress or the damage of an insulating layer of the silicon steel sheets caused by the integral one-time lamination are avoided, and the sectional assembly and the quality control in the automatic production are facilitated. However, the existing sectional laminating equipment is generally characterized in that each section is laminated independently, the subsequent multi-section assembly is laminated again, repeated laminating operation is needed, time is wasted, laminating faces are laminated simultaneously during laminating, empty bubbles are easily formed at the middle position of the laminating faces, and the problems of loose contact, damage to the silicon steel sheet insulating layer and the like are caused. Disclosure of Invention Based on the above, it is necessary to provide a motor stator core lamination device for solving the problems that the lamination efficiency of the current sectional lamination device is low and the lamination surface is easy to generate empty bubbles. The above purpose is achieved by the following technical scheme: a motor stator core lamination apparatus comprising: The stator comprises a frame, wherein a workbench is arranged on the frame, a positioning disc is arranged above the workbench and used for bearing and positioning silicon steel sheets, and a plurality of silicon steel sheets are mutually stacked to form a stator core; The press assembly is used for extruding the plurality of silicon steel sheets on the positioning disc so that the plurality of silicon steel sheets are mutually attached; The pressure dividing ring is positioned between the adjacent N silicon steel sheets, N is a positive integer, the upper end face and the lower end face of the pressure dividing ring are elastic inclined planes, and the thickness of the pressure dividing ring is gradually increased along the radial direction from the inner diameter to the outer diameter. Further, the partial pressure ring includes inlayer stereoplasm ring and two outer elastic ring, the outer Zhou Jun sealing connection of the upper and lower both ends face of inlayer stereoplasm ring outer elastic ring forms the cavity between inlayer stereoplasm ring and the outer elastic ring, the cavity intussuseption is filled with hydraulic oil, perpendicular distance between inlayer stereoplasm ring and the inlayer stereoplasm ring increases along radial direction from the internal diameter gradually, plane helical groove has all been seted up to the both ends face about the inlayer stereoplasm ring. Further, two handles are fixedly arranged on the periphery of the inner hard ring. Further, three positioning rods sliding along the radial direction of the positioning disc are arranged on the positioning disc, the three positioning rods are uniformly distributed along the circumferential direction of the positioning disc, the diameter of the pressure dividing ring is the same as that of the silicon steel sheet, and the three positioning rods are positioned on the peripheries of the pressure dividing ring and the silicon steel sheet. Further, the workbench is fixe