Automotive hub locally plates zinc-nickel tooling
Technical field
The present invention relates to a kind of plating zinc-nickel toolings more particularly to a kind of automotive hub locally to plate zinc-nickel tooling.
Background technology
Truck drive shaft connect spline position with wheel hub and does not need coating, common surface treatment method be to wheel hub half at
Product reprocess splined section after being integrally electroplated.But in post-production wheel hub, damage is easy in frock clamp and process
Hinder wheel hub, destroy the existing coating in surface, causes coating peeling and coining wound, directly result in loss and increase, the production cost increases.
Accordingly, it is desirable to provide a kind of new technical solution solves the above problems.
Invention content
The technical problem to be solved by the present invention is to overcome the plating of wheel hub semi-finished product to reprocess later, one kind is provided
To the protecting tool set-up of wheel hub parcel plating, to which finished product can be being directly obtained after surface treatment.
In order to solve the above technical problems, the automotive hub of the present invention locally plates zinc-nickel tooling, it includes internal protective cover, outer guarantor
Sheath and sealing element, the outer jointing jacket set are attached to outside wheel hub spline endoporus, and the internal protective cover is placed in wheel hub spline endoporus
In, the internal protective cover is assigned in outer jointing jacket, is connected by fastener between the internal protective cover and outer jointing jacket.
Further, the outer jointing jacket by rubber seal in wheel hub spline endoporus outer surface, the internal protective cover
Inner face be placed in wheel hub spline endoporus, be sealed with O-ring on the outer end face of the internal protective cover.
Further, the fastener is hex nut and hex bolts, and the hex nut is installed in internal protective cover,
The hex bolts is installed in outer jointing jacket.
In the above-mentioned technical solutions, the internal protective cover, outer jointing jacket material be polypropylene material.
Beneficial effects of the present invention:Inside and outside protective case mating connection is installed on wheel hub spline endoporus, in conjunction with sealing element to vapour
Wheel hub endoporus and splined section are protected, and achieve the purpose that parcel plating, will not destroy the existing coating of hub surface.
Description of the drawings
Fig. 1 is the schematic diagram that present invention plating needs automotive hub to be protected.
Fig. 2 is the structural schematic diagram of tooling of the present invention.
Fig. 3 is the structural schematic diagram of fastener in tooling of the present invention.
Fig. 4 is the schematic diagram that the tooling assembled is loaded on hanger.
Wherein:1, internal protective cover, 2, outer jointing jacket, 3, wheel hub spline endoporus, 4, rubber pad, 5, O-ring, 6, hexagonal spiral shell
Mother, 7, hex bolts, 8, hanger.
Specific implementation mode
In order to deepen the understanding of the present invention, below in conjunction with embodiment and attached drawing, the invention will be further described, should
Embodiment is only used for explaining the present invention, does not restrict the protection scope of the present invention.
Automotive hub in Fig. 1, region is protection zone at A, the local plating zinc-nickel tooling of automotive hub of the invention, can be with
Region at A is protected, the existing coating in surface will not be destroyed.
Shown in Fig. 2, the local plating zinc-nickel tooling of automotive hub of the invention, it includes internal protective cover 1, outer jointing jacket 2 and close
Sealing, outer jointing jacket 2 are sheathed on outside wheel hub spline endoporus 3 outside, and internal protective cover 1 is placed in wheel hub spline endoporus 3, internal protective cover 1
It assigns in outer jointing jacket 2, is connected by fastener between internal protective cover 1 and outer jointing jacket 2.
Outer jointing jacket 2 is sealed in 3 outer surface of wheel hub spline endoporus by rubber pad 4, and the inner face of internal protective cover 1 is placed in
In wheel hub spline endoporus 3, O-ring 5 is sealed on the outer end face of internal protective cover 1.
Shown in Fig. 3, fastener is hex nut 6 and hex bolts 7, and hex nut 6 is installed in internal protective cover 1, hexagonal
Bolt 7 is installed in outer jointing jacket 2.
Inside and outside protective case 1,2 peripheral parts are polypropylene material.It is steady using strength of PP, hardness, heat resistance, chemistry
It is qualitative to get well and be molded easy characteristic, molding die is designed by the requirement of wheel hub protection zone, first fastener(Hex nut 6
With hex bolts 7)It is cooled and shaped fixed to polypropylene in shaping mould, is reinjected.Because polypropylene shrinking percentage is big, Ying Jiang
It is impregnated 30 minutes or more into the water reuses.Sealing element selects tartan product, to obtain good leakproofness
Energy.
As shown in Fig. 2, first by sealing element(Rubber pad 4, O-ring 5)Fixed to corresponding position, then by inside and outside protective case 1,2
It is put into wheel hub spline endoporus 3, using manpower or by spanner, driver, is fastened by the connection of bolt, nut and twists protective case
Tightly, reach parcel plating purpose, finally the tooling assembled is loaded on hanger 8(Shown in Fig. 4), it is put into coating bath and carries out electricity
Plating.
Compared with common process for treating surface scheme, the present invention has following obvious advantages:
(1)Wheel hub finished product can be electroplated using tooling, the semi-finished product electroplating efficiency that compares improves 1 times or more;
(2)Parcel plating tooling technology, which can be eliminated, reprocesses caused harmful effect after wheel hub semi-finished product are integrally electroplated;
(3)From the surface treatment that is worked into of wheel hub, whole process is connected more smooth, saves the time, production efficiency carries
It is high.