Upper die for press-fitting of fan rotor and motor shaft

A fan rotor and motor shaft technology, applied in metal processing, metal processing equipment, manufacturing tools, etc., can solve the problems affecting the overall quality of the fan, large noise, etc., to achieve time-saving and convenient operation, ensure the overall quality, and not easy to move The effect of moving

Inactive Publication Date: 2014-10-15
NINGBO LIONBALL VENTILATOR
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] When the mold with the above structure is used to press-fit the fan rotor and motor shaft, in order to withstand the pressure of the punch of the punching machine, the upper mold is made of steel material as a whole. Although the bearing strength is high, the overall hardness is also very high. The high-

Method used

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Examples

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Example Embodiment

[0015] The present invention will be further described in detail below in conjunction with the drawings.

[0016] As shown in the figure, the upper die for press-fitting the fan rotor and the motor shaft of the present invention includes a steel upper die body 1, and the upper die body 1 is provided with an axial through hole 1.1.

[0017] The axial through hole 1.1 is sleeved with a combined rubber tube. The combined rubber tube consists of an inner layer of soft rubber tube 2.1 and an outer layer of hard rubber tube 2.2. The inner layer of soft rubber tube 2.1 and the outer layer of hard rubber tube 2.2 are made by injection molding. The outer side wall of the outer hard rubber tube 2.2 is provided with a plurality of axial ribs 2.21 distributed in the circumferential direction, and the inner side wall of the axial through hole 1.1 of the upper die body 1 is provided with a plurality of axial ribs 2.21. A card slot with one card.

[0018] The wall thickness of the upper end of the u

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PUM

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Abstract

An upper die for press-fitting of a fan rotor and a motor shaft comprises a steel upper die body (1), wherein the upper die body (1) is provided with an axial through hole (1.1), the axial through hole (1.1) is internally provided with a combined rubber tube in a sleeving way, the combined rubber tube is formed by an inner-layer soft rubber tube (2.1) and an outer-layer hard rubber tube (2.2), the inner-layer soft rubber tube (2.1) and the outer-layer hard rubber tube (2.2) are formed by injection molding with an injection mold, the outer side wall of the outer-layer hard rubber tube (2.2) is provided with multiple axial raised ribs (2.21) distributed along the circumference, and the inner side wall of the axial through hole (1.1) of the upper die body (1) is provided with multiple clamp slots clamped and matched with the axial raised ribs (2.21) one by one. By adopting the upper die, the motor shaft can be effectively prevented from being worn and scratched.

Description

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Claims

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Application Information

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Owner NINGBO LIONBALL VENTILATOR
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