CN2769024Y

CN2769024Y - Rim and retainer ring shrink-die capable of raising service life

Info

Publication number: CN2769024Y
Application number: CN 200420091568
Authority: CN
Inventors: 郑文举
Original assignee: Individual
Current assignee: Individual
Priority date: 2004-09-06
Filing date: 2004-09-06
Publication date: 2006-04-05
Anticipated expiration: 2014-09-06

Abstract

The utility model relates to a shrinking module for circular rims and retainer rings, which is capable of improving the service life and belongs to the wheel manufacture industry in the field of mechanical engineering. The technical scheme of the utility model can ensure that a shrinking block and a shrinking seat always keep a surface contact in the whole pressurizing process, the contact area is enlarged and the pressure intensity is decreased to lengthen the service life of a module. In the accompanying diagram of the summarization of the specification, a lower module part is substantially identical to the prior art, and designed and created improvement is an upper module part; corresponding to a plurality of shrinking blocks, sliding posts with the same number, which are uniformly distributed on a conical surface at the circumferential direction, and two conical surface flanges of an upper conical surface flange and a lower conical surface flange form the shrinking seat, and each shrinking block corresponds to one sliding post and keeps a movable fit with the post; one of the upper and the lower conical surface flanges is integral, and the other one is a splitting piece which can be connected with a connecting piece to form a whole body and is divided into equal parts with the same number at the circumferential direction; the shrinking blocks with the number, and holes with the same number, which are formed on the blocks and keep movable fits with the sliding posts with the same number, are divided into equal parts at the circumferential direction to realize the shrink of circular rims and retainer rings. The value of the number is decided by the diameter of circular rims and shield rings which are processed.

Description

Can improve wheel rim, the back-up ring shrinking die in service life

Technical field:

The application can improve wheel rim, the back-up ring shrinking die in service life, belongs to mechanical engineering field wheel manufacturing.

Background technology:

Manufacturing process for the multi-piece type wheel; wheel rim and back-up ring all need through shrinking this procedure of finishing; technological equipment wherein all needs shrinking die or claims die finish; wherein contraction block and contraction seat are two main members that cooperatively interact of this mould, and it is to finish by the inclined-plane that shrinks seat that contraction block inwardly tightens up motion.Early stage contraction die finish, the outer peripheral face of contraction block was positive 12 pyramidal surfaces before it is not divided into 12, and the outer peripheral face of its inner headed face and wheel rim or back-up ring conforms to substantially, the inner peripheral surface that shrinks seat also is positive 12 pyramidal surface, when this mould makes wheel rim or back-up ring be in the product just size, two corresponding 12 pyramidal surfaces of the contraction block of mould and contraction seat should be in complete mated condition, and both the oblique angle equates, each respective face is fitted.This just requires the manufacturing process of these two key components promptly will guarantee the equality that accurately guarantees each limit face again of calibration, guarantee simultaneously equating of oblique angle again, and these three to reach simultaneously be very difficult, so that processing cost is very expensive, technical economic benefit is low, so this structure has been eliminated now gradually.Existing another kind of organization plan is that contraction block and the mating surface that shrinks seat are taper seats, if the contraction block of mould and two corresponding taper seats that shrink seat are fitted fully, the cone angle of the two is equated, the respective diameters size is also necessary simultaneously equates.In the process of the manufacturing of this structure mold and use, find, guarantee that this point also is very difficult, even to remain the face contact in whole pressure process be impossible.Do not wait as cone angle or respective diameters size, situation shown in Figure 1 will appear, Fig. 1 is the drawing in side sectional elevation of this mold work state, part 20 is to shrink seat among the figure, part 21 and part 22 are respectively that the two states of contraction block under the situation that the respective diameters size is not waited is drawn in a situation on the figure, among the figure as seen, this two states of contraction block, one is that the contraction block diameter is less than the diameter (contraction block of the first half) that shrinks seat, another is that the contraction block diameter is greater than the diameter (contraction block of the latter half) that shrinks seat, two states all makes contraction block and shrinks the seat conical surface and can not get close applying, the former is a bus contact, the latter is the contacts of two buses, if cone angle does not wait yet simultaneously, then just become one or 2 contacted.Pressure was very big again when problem was work, the forcing press that uses generally is the forcing press of 315-500 ton force, like this because contact area is very little, so pressure is very big, mould uses soon will heavy wear, the long reason in service life of the shrinking die of this structure why that Here it is.

Summary of the invention:

The organization plan purpose that the application proposes be whenever can guarantee, contraction block all is that face contacts with shrinking in any case, thereby and increased contact area and reduced pressure, increase the service life.

Technical scheme is, corresponding n piece contraction block, by circumferentially be distributed on a traveller of the n on the taper seat and up and down two conical surface flanges constitute and shrink seat, the corresponding traveller of each contraction block also forms movingly with it.Up and down two conical surface flanges wherein one be whole, another part is whole processing and is divided into the n equal portions with doing to carry out circular dividing after locating hole and the fixing hole in advance with another connector, with after the assembling of n traveller again with the connector positioning and fixing, thereby realize the axial and circumferential positioning and fixing of n traveller.N contraction block and on a n traveller n movingly hole also be that circular dividing is divided into the n five equilibrium after the whole processing.The individual calibration in hole movingly of the whole processing of contraction block n, the contraction seat calibration of each n of conical surface flange pilot hole up and down can be finished with a general indexing fixture.The size of said n is by the diameter decision of processed wheel rim or back-up ring.

Beneficial effect is except that aforesaid raising die life, the mould of this structure is not difficult aspect processing technology and assembly technology yet simultaneously, as long as design, process passable in advance once the cover indexing fixture, and this sleeve clamp is all general for the shrinking die of wheel rim, the back-up ring of various models, size, so relative cost is very low.

Description of drawings:

Fig. 1 is the drawing in side sectional elevation that shows the existing shrinking die of background technology;

Part 20 wherein is to shrink seat, and part 21 is contraction blocks---functional diameter (FD) is less than the situation of shrinking seat, and part 22 is contraction blocks---, and functional diameter (FD) is greater than the situation of shrinking seat;

Fig. 2 is the front view of summary of the invention;

Fig. 3 is the cutaway view of A-A position among Fig. 2;

Fig. 4 is the profile of B-B position among Fig. 2;

Fig. 5 is for simplified structure is arranged on the inboard of traveller with dovetail key, saves contraction block lid and the feather key in it and fixedly after the alignment pin, screw of contraction block lid, circumferentially is divided into the drawing in side sectional elevation of each part of ten halves.

Wherein among Fig. 2 to Fig. 5, part 1 is a upper bolster, and part 2 is to go up conical surface flange, and part 3 is the alignment pins between upper bolster and the conical surface flange, part 4 is strippers, part 5 is material returned screws, and part 6 is travellers, and part 7 is the hold-down screws between upper bolster and the conical surface flange, part 8 is feather keys, part 9 is contraction blocks, and part 10 is following conical surface flanges, and part 11 is retaining pads, part 12 is the screws that tighten up the retaining pad, part 13 is outer covers, and part 14 is material returned springs, and part 15 is contraction block lids, part 16 is lubricating cups, part 17 is fixing screws of contraction block lid, and part 18 is alignment pins of contraction block lid, and part 19 is dovetail keies.

The specific embodiment:

Below in conjunction with Fig. 2,3,4,5 embodiment of this application on the wheel rim shrinking die is described:

Among the figure, part of the lower die and existing shrinking die basically identicals such as die shoe and punch.Innovation and creation are in the part of the upper die, part 6 is for circumferentially being distributed on a traveller on the taper seat, use for contraction block 9 directed slips, totally 12, part 2 and part 10 are respectively the upper and lower conical surface flanges of fixing 12 travellers 6, it is whole wherein descending conical surface flange 10, last conical surface flange 2 is that integral body is processed and done to be divided into 12 equal portions behind locating hole and the fixing hole together in advance with upper bolster 1 (double as connector), earlier each traveller 6 is fixed it with following conical surface flange 10 assemblings and with retaining pad 11 and screw 12 during general assembly, 12 piecemeals to going up conical surface flange again are successively by in advance location order and traveller 6 assemblings, and with two alignment pins 3 and three screws 7 the two are fixed respectively by prefabricated locating hole and fixing hole with upper bolster 1.Then material returned spring 14 and stripper 4 are installed, are assembled contraction block 9 afterwards with screw 5.12 contraction blocks 9 integral body add process and cover 15 fitting plane man-hour after, contraction block 9 and lid 15 usefulness pins 18 and screw 17 assembling backs by indexing fixture integral body boring 12 holes, are set in contraction block 9 on the traveller 6 with these holes.Part 8 is keys, and contraction block 9 tightens up or decontrols to slide up and down along traveller 6 and key 8 and finishes.Peripheral covering 13 is for dustproof and attractive in appearance.Part 16 is lubricating cups, and each covers and is provided with two, uses for giving the sliding surface apply oil.If dovetail key 19 is arranged on the inboard of traveller 6 and outer side switch 8 that need not be shown in Figure 4, then can save cover 15 and pin 18, screw 17 and need not, as shown in Figure 5.Structure decrease shown in Figure 5 part, but cost is also to have reduced contact area, thereby has strengthened pressure to a certain extent.

Claims

1. can improve the wheel rim in service life, the back-up ring shrinking die, comprise punch and die shoe, it is characterized in that its shrink seat by n traveller and up and down conical surface flange constitute, this n traveller central axis separately all is distributed on the same taper seat, it is respectively fixed by conical surface flange at two ends up and down, up and down two conical surface flanges one of them be whole, another is can link into an integrated entity but circumferentially be divided into n split part, by whole with another connector in advance before not cutting apart with system locating hole and screw fastener hole, n split part can be linked into an integrated entity with another connector, according to big or small n desirable 8---the integer between 15 of wheel rim that is retracted or back-up ring diameter.

2. the wheel rim that can improve service life according to claim 1, the back-up ring shrinking die, traveller number in it is characterized in that the contraction block number and shrinking seat equates, each contraction block and a lid are fixed together by alignment pin and screw, along the two contact-making surface place one hole is arranged, the central axis in hole is positioned in the middle of the contact-making surface, make it with shrink in the seat traveller movingly, have keyway in the outside of traveller and the half hole symmetry midline position of lid, key is fixed in the outer side slot of traveller, lid can slide along the key in traveller surface and its outer side slot together with contraction block, circular in the inside cross-section of all contraction blocks is formed, its longitudinal cross-section and wheel rim, the outer vertically section bus of back-up ring is substantially mutually attached.

3. according to claim 1 and described wheel rim, the back-up ring shrinking die that can improve service life of claim 2, it is characterized in that if the keyway on the traveller and interior key thereof are arranged on the inboard of traveller, and the cross section of key changes swallow-tail form into, symmetrical midline position at contraction block has dovetail groove, then contraction block can slide along traveller and dovetail key and can not break away from traveller again, and lid and pin, screw can save need not.