CN222509055U

CN222509055U - Lamination press mounting equipment for motor rotor

Info

Publication number: CN222509055U
Application number: CN202420212802.8U
Authority: CN
Inventors: 罗柏松; 李江; 王冬根
Original assignee: Zunyi Dadihe Electric Co ltd
Current assignee: Zunyi Dadihe Electric Co ltd
Priority date: 2024-01-29
Filing date: 2024-01-29
Publication date: 2025-02-18
Anticipated expiration: 2034-01-29

Abstract

This scheme discloses a motor rotor lamination press-fitting device in the field of motor parts assembly technology, including a pressing device, the pressing device includes a mounting platform, a lower mold body, a fixed sleeve, an upper mold body and a connecting plate, the lower mold body is provided with a fixing hole in the middle for inserting one end of the rotor shaft, and the lower mold body is installed on the mounting platform; the center of the upper mold body is provided with a first mold cavity for the stop washer to enter and a second mold cavity for inserting the other end of the shaft, the top of the upper mold body is slidably connected to the connecting plate through a sliding rod, and the connecting plate is connected to the working end of the hydraulic press; one end of the fixed sleeve is provided with a sink groove, and when the iron core is stacked, the sink groove on the fixed sleeve is stuck on the edge of the end plate, and the iron core is pre-tightened by pressing down the fixed sleeve. After each stacking of the iron core, the fixed sleeve is used to pre-tighten the iron core to avoid breakage, dislocation, etc. between the iron cores, and finally the rotor is pressed and fitted as a whole, without the need for manual tightening operations, thereby reducing labor intensity.

Description

Lamination press mounting equipment for motor rotor

Technical Field

The utility model belongs to the technical field of motor part assembly, and particularly relates to motor rotor lamination press-fitting equipment.

Background

In the prior art, the shaft of the rotor, the iron core, the end plate and the commutator are respectively pressed and assembled. The motor rotor core adopts silicon steel sheet riveting formula more, wholly divide into multistage combination, this puts forward very high requirement when rotor core and axle stack pressure equipment.

The traditional operation generally adopts a manual press-fitting mode, the press-fitting effect of an iron core cannot be guaranteed, the inner permanent magnet magnetic steel is cracked due to press-fitting transition, or the rotor length exceeds the design due to press-fitting failure, after the prior art is improved, a press is used for laminating the rotor iron core, a round nut above the laminated iron core is required to be matched with a stop washer to be screwed on a shaft for guaranteeing the press-fitting effect of the stop washer, even though the improved technology adopts manual screwing, the existing defects are that on one hand, the screwing in place cannot be guaranteed, on the other hand, the nut is large in size, the screwing torque is large, the operation labor intensity is also large, the whole assembly process is divided into a plurality of parts, not only manpower resources are wasted, but also the quality cannot be guaranteed.

Disclosure of utility model

The utility model aims to provide motor rotor lamination press-fitting equipment so as to solve the problems of low assembly efficiency and high labor intensity of workers of a press in the prior art.

The motor rotor lamination press mounting equipment comprises a fixing frame, a workbench arranged on the fixing frame, a back plate connected to one side of the fixing frame, a supporting table connected to the top of the back plate, an oil press arranged on the supporting table, and a pressing device, wherein the pressing device comprises a mounting table, a lower die body, a fixing sleeve, an upper die body and a connecting plate, a fixing hole for inserting one end of a shaft of a rotor is formed in the middle of the lower die body, the lower die body is arranged on the mounting table, and the mounting table is arranged on the workbench;

The center of the upper die body is provided with a first die cavity for the stop washer to enter and a second die cavity for the other end of the shaft to insert, the top of the upper die body is in sliding connection with a connecting plate through a sliding rod, the connecting plate is connected with the working end of the oil press, one end of the fixing sleeve is provided with a sinking groove, the sinking groove on the fixing sleeve is clamped at the edge of the end plate after the iron cores are overlapped, and the iron cores are pre-tightened by pressing the fixing sleeve.

The working principle of the scheme is that an end plate and an iron core at one end are overlapped and sleeved on a shaft, one end of the shaft is inserted into a fixing hole of a lower die body, a sinking groove of the fixing sleeve is used for clamping the edge of the uppermost iron core each time when the iron core is overlapped, then the fixing sleeve is pressed down to pre-tighten the overlapped iron cores, then other iron cores are overlapped, the fixing sleeve is required to be removed after pre-tightening, the uppermost end plate is sleeved on the shaft after the iron cores are overlapped, a stop washer is sleeved on the shaft, then an oil press is started to enable a connecting plate and an upper die body to move downwards until the upper end of the shaft is inserted into a second die cavity, the stop washer enters a first die cavity, pressure is continuously generated when the stop washer moves downwards to the whole assembled rotor, and the end plate, the iron cores and the stop washer are completely pressed together under the pressure. And then the connecting plate and the upper die body are moved upwards in the original way, and the pressed rotor is taken away.

The technical scheme has the beneficial effects that the fixed sleeve is used for pre-tightening the iron cores after the iron cores are stacked each time, the situation that the later pressing is broken, misplaced and the like due to magnetic repulsion is avoided, the first die cavity for the stop washer to enter and the second die cavity for the other end of the shaft to be inserted are formed in the upper die body, the parts are pressed and attached under the action of pressure after being matched, round nuts are not needed, the tightening operation is carried out by means of manual work, and the labor intensity is reduced.

Further, a spring is arranged between the top of the upper die body and the connecting plate.

Further, an observation port is formed in one side of the fixing sleeve. The relative position of the sinking groove and the edge of the iron core is convenient to observe, so that the iron core is fast clamped.

Further, the upper die body and the lower die body are in a cylindrical shape, and the outer diameters of the upper die body and the lower die body are larger than the diameter of the iron core.

Further, the fixing sleeve is made of plastic materials.

Drawings

FIG. 1 is a schematic diagram of a motor rotor lamination press-fitting apparatus of the present utility model;

FIG. 2 is a schematic view of the structure of a fixing sleeve in the lamination press-fitting apparatus of the motor rotor of the present utility model;

fig. 3 is a partial structural sectional view of the motor rotor lamination press-fitting apparatus of the present utility model.

Detailed Description

The following is a further detailed description of the embodiments:

The reference numerals in the drawings of the specification comprise a fixed frame 1, a workbench 2, a back plate 3, a supporting table 4, an oil press 5, a connecting plate 6, a spring 7, a slide bar 8, an upper die body 9, a second die cavity 901, a first die cavity 902, a fixed sleeve 10, an observation port 101, a sinking groove 102, a rotor 11, a shaft 110, a lower die body 12 and a mounting table 13.

The embodiment is basically as shown in figures 1, 2 and 3, and comprises a fixing frame 1, wherein a workbench 2 is arranged on the fixing frame 1, one side of the fixing frame 1 is connected with a backboard 3, the top of the backboard 3 is connected with a supporting table 4, and an oil press 5 is arranged on the supporting table 4.

The device also comprises a pressing device, the pressing device comprises an installation table 13, a lower die body 12, a fixing sleeve 10, an upper die body 9 and a connecting plate 6, a fixing hole for inserting one end of a shaft 110 of a rotor 11 is formed in the middle of the lower die body 12, the lower die body 12 is installed on the installation table 13, and the installation table 13 is installed on the workbench 2. The upper die body 9 and the lower die body 12 are in a cylindrical shape, and the outer diameters of the upper die body 9 and the lower die body 12 are larger than the diameter of the iron core.

The center of the upper die body 9 is provided with a first die cavity 902 for a stop washer to enter and a second die cavity 901 for the other end of the shaft 110 to insert, the top of the upper die body 9 is in sliding connection with the connecting plate 6 through a sliding rod 8, a spring 7 is arranged between the top of the upper die body 9 and the connecting plate 6, the connecting plate 6 is connected with the working end of the oil press 5, and the oil press 5 drives the connecting plate 6 to linearly reciprocate in the vertical direction.

One end of the fixing sleeve 10 is provided with a sinking groove 102, when the iron cores are overlapped, the sinking groove 102 on the fixing sleeve 10 is clamped at the edge of the end plate, and the iron cores are pre-tightened by pressing down the fixing sleeve 10. One side of the fixing sleeve 10 is provided with an observation port 101, and the fixing sleeve 10 is made of plastic materials.

The concrete implementation process comprises the following steps of overlapping an end plate and an iron core at one end on a shaft 110, inserting one end of the shaft 110 into a fixing hole of a lower die body 12, clamping the sinking groove 102 of the fixing sleeve 10 at the edge of the uppermost iron core each time when the iron core is overlapped, pressing down the fixing sleeve 10 to pre-tighten the overlapped iron core, overlapping the iron core again, removing the fixing sleeve 10 after pre-tightening (drawing the fixing sleeve 10 for representing the whole in fig. 1), sleeving the uppermost end plate on the shaft 110 until the iron core is overlapped, sleeving a stop washer on the shaft 110, starting an oil press 5 to enable the connecting plate 6 and the upper die body 9 to move downwards until the upper end of the shaft 110 is inserted into a second die cavity 901, enabling the stop washer to enter a first die cavity 902, continuing to move downwards to generate pressure on the whole of the assembled rotor 11, and enabling the end plate, the iron core and the stop washer to be completely pressed together. And then the connecting plate 6 and the upper die body 9 are moved upwards in the original way, and the pressed rotor 11 is taken away.

Claims

1. The motor rotor lamination press-mounting equipment comprises a fixing frame, a workbench arranged on the fixing frame, a back plate connected to one side of the fixing frame, and a supporting table connected to the top of the back plate, wherein an oil press is mounted on the supporting table;

2. The motor rotor lamination press-fitting equipment of claim 1, wherein a spring is arranged between the top of the upper die body and the connecting plate.

3. The motor rotor lamination press-fitting equipment of claim 2, wherein an observation port is formed in one side of the fixing sleeve.

4. The apparatus of claim 3, wherein the upper and lower mold bodies are cylindrical, and the outer diameters of the upper and lower mold bodies are larger than the diameter of the iron core.

5. The apparatus of claim 4, wherein the stationary sleeve is made of a plastic material.