Precise control production process of automobile airbag cover

An airbag and precise technology, applied in the field of manufacturing, can solve the problem that the thickness accuracy of the mold cavity cannot meet the requirements, affect the relative position accuracy of the mold, and affect the service life of the mold, so as to achieve controllable production process, accurate adjustment process, and prolong service life. Effect

Active Publication Date: 2019-07-23
FOSHAN NANHAI HUADA TAKAGI MOLD CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This process will affect the thickness of the skin texture due to the operation of different technicians and different batches of the same technician, which will further affect the relative position accuracy of the mold, that is, the accuracy of the cavity thickness cannot meet the requirements.
In the prior art, the mold is only adjusted according to the size of the trial-produced product through repeated assembly of the mold, and multiple adjustments are made to meet the requirements of the production process, thus wasting a lot of manpower and material resources and affecting the service life of the mold

Method used

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  • Precise control production process of automobile airbag cover
  • Precise control production process of automobile airbag cover
  • Precise control production process of automobile airbag cover

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0055] In order to produce an airbag cover applied to the rear seat of a car, the Figure 4 Shown is an airbag cover mold with increased precision, the airbag cover mold comprising:

[0056] The fixed mold insert 1 and the movable mold insert 3, the fixed mold insert 1 and the movable mold insert 3 are relatively free to approach and leave, and form a mold cavity when the mold is closed, and the mold cavity is used to shape the rubber material , the airbag cover product 2 is obtained; the shape and dimension accuracy of the mold cavity after mold closing controls the shape, size and precision of the airbag cover product 2;

[0057] The inner surface of the mold cavity is provided with skin texture, which is used to form skin texture on the surface of the airbag cover product 2 after injection molding;

[0058] The inner surface of the mold cavity is also provided with a blasting groove, which is used to form a preset weak portion on the outer surface of the air bag cover prod...

Embodiment 2

[0074] A kind of precise control technology of automobile air bag cover, adopts the air bag cover mold that embodiment 1 provides, with reference to Figure 7 , its specific process steps are as follows:

[0075] 1) Machining mold components (including fixed mold insert 1, movable mold insert 3, inclined push piece group 4, straight push piece set 5, thimble plate 6, bottom plate 7, and adjustment backing plate 8) according to the design size, so that the mold The dimensions of the components meet the tolerance requirements;

[0076] 2) The first grinding and matching; said grinding and matching refers to the use of grinding machine fine grinding, oil stone grinding, grinding paste grinding, etc., to make the cooperation of the punch and die in each mold part, the cooperation of the guide post and the guide sleeve Wait for the required cooperation relationship to be achieved;

[0077] 3) Assemble the mold components into an airbag cover mold, fix and adjust the backing plate...

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Abstract

The invention relates to the field of manufacturing, and particularly discloses an accurate control production technology for an automobile airbag cover. The technology includes the steps that scientific and reasonable detection data are obtained by detecting the assembling dimensions of a die so as to accurately adjust the die in the subsequent process; precision adjustment is made through arrangement of an adjusting base plate so as to make up for errors happening because of the uncontrollable thickness of leather stripes, the precision requirement for the dimensions of the leather stripes is lowered, and therefore the production technology is made controllable and a large-scale die manufacturing technology can be better formed. The burn-in and cutting technologies and the like of the die are avoided, die deformation is evaded, the adjusting process is made more accurate, realization is easy, the final technological requirement can be met at a time, technological cost is reduced, working efficiency is improved, the influence on the dimensional precision and combination precision of the die in the repeated assembling and disassembling processes is avoided, and the service life ofthe die is prolonged.

Description

technical field [0001] The invention belongs to the field of manufacturing, and in particular relates to a precisely controlled production process for an automobile airbag cover. Background technique [0002] The airbag system (SRS) is a protection device that prevents the occupants of the car from being subjected to secondary collisions in an emergency, and is usually used in conjunction with seat belts. It includes airbags, storage devices for storing airbags, sensing devices and related control systems, etc. When the impact sensor detects the impact, the relevant control system will judge the degree of the collision, and automatically trigger the inflation, complete the inflation process of the airbag in an instant (within about 25-35 milliseconds), and open the storage device, so that the airbag can be released from the storage device. pops up. In order to enable the airbag to pop out smoothly and quickly, those skilled in the art usually provide a special airbag cover...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23P15/24
CPCB23P15/24
Inventor 何益林
Owner FOSHAN NANHAI HUADA TAKAGI MOLD CO LTD
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