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Rotary iron core lamination press-fitting die and press-fitting method

A technology of lamination of iron cores and press-fit molds, which is applied in the directions of forming tools, manufacturing tools, metal processing equipment, etc. The problem of uneven thickness error, etc., can overcome the uneven height of the iron core, overcome the large total height error, and reduce the total height error.

Active Publication Date: 2021-04-30
JIANGYIN HUAXIN PRECISION TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] First, there is a certain thickness unevenness error in the silicon steel strip used for stamping, which causes the upper and lower planes of the iron core to be non-parallel after the silicon steel sheets are stacked into an iron core, and the overall height and dimension error of the iron core is also relatively large;
[0005] Second, the plane deformation of the silicon steel strip used for stamping in the length direction and the width direction is inconsistent, which also causes the upper and lower planes of the iron core to be non-parallel after the silicon steel sheets are stacked into an iron core, and the overall height dimension of the iron core The error is also large

Method used

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  • Rotary iron core lamination press-fitting die and press-fitting method
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  • Rotary iron core lamination press-fitting die and press-fitting method

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Experimental program
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Effect test

Embodiment 1

[0039] like Figures 1 to 3 Shown is an embodiment of a rotary iron core lamination press-fitting die and a press-fitting method of the present invention, including a rotary tightening ring assembly and a rotary top pressing assembly disposed below the rotating tightening ring assembly , the rotary tightening ring assembly includes a lower die base 1 arranged on the punch press, a rotating sleeve 2 rotatably arranged on the lower die base 1, and the upper end of the rotating sleeve 2 is provided with an outer flange 3, so The upper end of the inner hole of the rotating sleeve 2 is provided with a positioning stop, and a blanking die 5 for blanking the iron core punch 4 is fixedly installed in the positioning stop. The inner hole of the rotating sleeve 2 is provided with a tightening hole. Ring 6, the blanking die 5 is connected up and down with the tightening ring 6, a driven synchronizing gear 7 is connected to the outer circle of the lower end of the rotating sleeve 2, and t...

Embodiment 2

[0052] A press-fitting method using the rotary iron core lamination press-fitting die of Embodiment 1, comprising the following steps:

[0053] (1) Component installation: a rotary tightening ring component for iron core laminations is installed below the blanking station of the punch press, and a rotary top pressure component is installed below the rotating tightening ring component;

[0054] (2) Pre-positioning of the rotary top pressing assembly: According to the total thickness H after the lamination of the iron core, the position of the telescopic rod 24 of the electric push rod 23 is controlled so that the upper end surface of the rotating plate 25 at the front end of the telescopic rod 24 is 6 times away from the tightening ring The distance between the end faces is L=H / 3~H / 4, and the position of the upper end face of the rotating disk 25 is just at the position where the silicon steel sheet is in contact with the rotating disk 25 when it stays;

[0055] (3) Punching of...

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Abstract

The invention discloses a rotary iron core lamination press-fitting die and a press-fitting method. The press-fitting die comprises a rotary tightening ring assembly and a rotary jacking and pressing assembly arranged below the rotary tightening ring assembly. The rotary tightening ring assembly comprises a lower die base arranged on a punching machine and a rotary sleeve rotationally arranged on the lower die base, and an outer flange is arranged at the upper end of the rotary sleeve. A positioning spigot is formed in the upper end of an inner hole of the rotary sleeve, a blanking female die used for blanking of an iron core punching sheet is fixedly installed in the positioning spigot, a tightening ring is arranged in the inner hole of the rotary sleeve, the blanking female die and the tightening ring are connected in an up-down butt joint mode, and a driven synchronous gear is connected to the outer circle of the lower end of the rotary sleeve. A servo motor is further arranged on the lower die base, a motor shaft of the servo motor is connected with a driving synchronous gear, and a synchronous transmission belt is connected between the driven synchronous gear and the driving synchronous gear. According to the invention, the precision of iron core lamination is improved.

Description

technical field [0001] The invention relates to the technical field of molds, in particular to a rotary iron core lamination press-fitting mold and a press-fitting method. Background technique [0002] The iron core of the stator and rotor of the motor is made of silicon steel sheets (punched sheets). Silicon steel sheets are usually stamped on a punching machine with a progressive die. In order to realize the integrated operation of stamping and stacking of silicon steel sheets, in addition to the stamping die (progressive die), the punching machine is usually equipped with a supporting Stacking molds for silicon steel sheets. The main body of the stacking die is a tightening ring. During stamping, the punching force of the blanking punch on the die and the precise stamping step distance are used. Each time a silicon steel sheet is punched, the blanking punch presses the silicon steel sheet into the tightening ring. In the middle, there is an interference fit between the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21D39/02B21D37/10B21D37/00
CPCB21D39/02B21D37/10B21D37/00Y02P70/10
Inventor 郭斌周宜存赵来远
Owner JIANGYIN HUAXIN PRECISION TECH CO LTD