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Engine fan bracket shell assembly bushing press-fit tooling

An engine and bushing technology, which is applied in the field of press-fitting tooling for the bushing of the engine fan bracket shell assembly, can solve the problems of bushing overload fracturing, low efficiency, and undetectable pressing force, so as to ensure the accuracy of the interface position , high efficiency effect

Active Publication Date: 2017-12-12
杭州德曼汽车零部件有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Disadvantages: First, the technology requires 100% inspection of the press-in force of the bushing, which cannot be detected, otherwise the press-in force will cause the bush to be overloaded and fractured, or the press-in force will not be in place due to insufficient press-in force; The position accuracy of the oil hole interface is affected by the assembly process of the tooling, so it is difficult to guarantee the position accuracy of the oil hole interface; the third is that the installation and conversion of the workpiece is labor-intensive and time-consuming, and the bushing fracturing scrap rate is high and the efficiency is low

Method used

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  • Engine fan bracket shell assembly bushing press-fit tooling
  • Engine fan bracket shell assembly bushing press-fit tooling
  • Engine fan bracket shell assembly bushing press-fit tooling

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0011] Embodiment 1: with reference to attached Figure 1-Figure 4 . An engine fan bracket shell assembly bushing press-fit tooling, including a lifting hydraulic machine and a base 1, the base 1 is located directly below the hydraulic lifting rod 2 in the lifting hydraulic machine, and the lower end of the hydraulic lifting rod 2 is vertical The floating pressure block 3 and the angular limiter 4 are arranged directly, and the angular limiter 4 is installed on the lower end surface of the floating pressure block 3, so that the upper end surface of the floating pressure block 3 is connected with the lower end surface of the hydraulic lifting rod 2, and the lower end surface is connected with the lower end surface of the oil pressure lifting rod 2. The upper end face of the angular limiter 4 is connected, the base 1 is equipped with a cylindrical pin positioning seat 5 and the upper end face of the cylindrical pin positioning seat 5 is directly opposite to the lower end face of...

Embodiment 2

[0012] Embodiment 2: On the basis of Embodiment 1, a press-fitting method for the bushing of the engine fan bracket housing assembly is firstly fitted with the lower end of the workpiece on the cylindrical pin positioning seat and placed on the low pillar. The bush guide diamond-shaped positioning pin is fixedly connected with the A hole in the workpiece, and the upper bush is installed on the angular stopper, and the angular stopper is turned to press the upper bush into the upper hole of the workpiece and then the oil hole in the upper bushing Connect with the upper interface of the oblique oil hole inside the workpiece, start the lifting hydraulic press to press the upper bushing into the upper hole of the workpiece; after the upper bushing is pressed into the workpiece, turn the workpiece over and put the workpiece on the cylindrical pin positioning seat with the upper end of the center hole and set the height The guide diamond-shaped positioning pin of the bushing on the p...

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Abstract

The invention relates to a lining press-fitting jig for an engine blower bracket housing assembly capable of not only quickly finishing the prelocalization of a work-piece press-fitting lining, but also realizing the stable pressed force of a lining. The lining press-fitting jig comprises a lifting oil press and a base, wherein the base is located just below an oil pressure lifting rod located in the lifting oil press, the lower end of the oil pressure lifting rod is vertically provided with a floating press block and an angular limiter, and the angular limiter is arranged on the lower end face of the floating press block; the base is provided with a round pin locating seat, the upper end face of the round pin locating seat directly faces the lower end face of the angular limiter, a low support and a high support are adjacently fixed on the base and the upper end faces of the low support and the high support are provided with lining-guided rhombic locating pins. The lining press-fitting jig has the advantages that firstly, labor is saving, time is saving and high efficiency can be realized; and secondly, a technology of limiting by two pins on one surface of the lining and the angular limiter is used for locating to guarantee the precision of the position of a connector between a lining oil line hole and a work-piece oil line hole after the lining is pressed into an appointed hole site of a work-piece.

Description

technical field [0001] The invention relates to a press-fit tooling tool for an engine fan bracket shell assembly bushing that can not only quickly complete the positioning of the workpiece before pressing the bushing, but also has a stable pressing force of the bushing, and belongs to the bushing assembly of the engine fan bracket shell Press-fitting equipment manufacturing field. Background technique [0002] The bushing of the existing fan bracket housing assembly is press-fitted using a hand-held tool for positioning, tapping and press-fitting. For example CN202745986U, the name "a kind of engine fan bracket", includes pulley, rotating shaft, oil seal spacer, skeleton oil seal, spacer, first rolling bearing, second rolling bearing, fan bracket shell, circlip for hole, straight-through type Pressure injection oil cup; the rotating shaft is fixed inside the fan bracket housing, and the rotating shaft is provided with an oil seal spacer, a first rolling bearing, a spacer, ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23P19/027
CPCB23P19/027
Inventor 沈国民
Owner 杭州德曼汽车零部件有限公司