CN203679136U - Large-diameter rotating drum tire mold - Google Patents

Large-diameter rotating drum tire mold Download PDF

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Publication number
CN203679136U
CN203679136U CN201320824956.4U CN201320824956U CN203679136U CN 203679136 U CN203679136 U CN 203679136U CN 201320824956 U CN201320824956 U CN 201320824956U CN 203679136 U CN203679136 U CN 203679136U
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CN
China
Prior art keywords
mold
rotary drum
placenta
forging
pad
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN201320824956.4U
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Chinese (zh)
Inventor
韩越宁
占先德
邰长军
柏恩旗
李珵
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
CSSC Nanjing Luzhou Machine Co Ltd
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CSSC Nanjing Luzhou Machine Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
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Priority to CN201320824956.4U priority Critical patent/CN203679136U/en
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Abstract

The utility model relates to a large-diameter rotating drum tire mold which comprises a bottom pad and a cover mold, wherein the structure of the bottom pad is identical to that of a hollowing part of a discharged blank material; the peripheral structure of the cover mold is identical to that of the discharged blank material; the bottom pad and the cover mold are movably connected in a vertical fitting manner. The thermal treatment hardness of the tire mold is HRC45-47; the thermal shrinking percentage is 1.5%; the size of bore design is based on the forge piece size heating shrinking percentage. By adopting the mold, the problem that a batch of small blanks can be only forged into round cakes as rotating drums with the diameters of fai495-510 are various; by adopting universal tire mold forging, not only is the utilization rate of a material improved, but also distribution of fibers inside metal are well protected, and the service life of components is further prolonged. The mold adopts sealed type die forging, formed forge pieces are free of trimming and provided with outer edges identical in height, and the cutting is greatly facilitated.

Description

A kind of major diameter rotary drum body placenta
Technical field
The utility model relates to a kind of major diameter rotary drum body placenta, relates to the technical field of forging of metal forging.
Background technology
Diameter phi 495---510 rotary drum body parts have a common feature, are exactly that the end is thin, wall is thin, there is boss centre, and their shapes are substantially similar, concrete slightly difference of size, as shown in Figure 1; The rough forging of this class rotary drum body part at present main open die forging that adopts is produced, and as shown in Figure 2, forging bar weight is very large for forging shape, therefore, adopts open die forging to have following defect: 1) metallic fiber irrational distribution.Due to will be from solid disk-shaped forgings by the indent dimensioned of part out, the metallic fiber in centre be cut off, and affects the mechanical performance of part; Because open die forgings is thick large cake, forging internal modification amount is difficult to guarantee, and therefore, forging internal structural flaw is difficult for eliminating.Machined work amount is large, and stock utilization is low.In the time of processing parts each several part size, a large amount of metal materials are cut, and waste of material is serious.The change in size of forging is frequent, is unfavorable for production management.Adopt open die forging, the rotary drum body forging ' s block dimension of various models is determined according to accessory size separately, because appearance similar, size are close, is easy to obscure mutually between operation moves, and goes wrong.
Utility model content
Technical problem to be solved in the utility model is, overcomes the shortcoming of prior art, and a kind of simple in structure, easy to operate, major diameter rotary drum body placenta of saving material is provided.
In order to solve above technical problem, the utility model provides a kind of major diameter rotary drum body placenta, comprise heelpiece and cover die, described base mat structure with described in go out blank to rush sky part identical, and cross section is the pyramidal structure of W shape, described cover die with described in to go out the peripheral structure of blank identical, and be cylindrical structural, described heelpiece and cover die are by being connected up and down.
Described placenta heat treatment hardness is HRC45~47, and percent thermal shrinkage gets 1.5%, and impression design size is forging ' s block dimension heat shrink rate, get ± 0.1mm of impression dimensional tolerance, and impression surface roughness is Ra (U) 1.6.
The technical scheme that the utility model further limits is:
Further, for ensureing into shape Forging non-trimming and outer rim height is concordant, described rotary drum body placenta is closed type cover die.
Further, because forging process for fuel temperature is very high, be 5CrNiMo hot die steel for making loose tool have stronger resistance of deformation, the mold materials adopting in the time working, this is good red hardness for material tool, can resistance to rapid heat cycle.
Further, the diameter range of described rotary drum body is φ 495-510mm.
The beneficial effects of the utility model are: this utility model has solved diameter phi 495---510 rotary drum body are because of problem wide in variety, that the little blank of batch can only be swaged into cake; adopt general loose tool to forge the utilization rate that has not only improved material; and the distribution of the fiber of metal inside has obtained good protection, the service life of further having improved part.At present placenta mainly adopts open type cover die, becomes shape Forging outer rim height uneven, add and brought many troubles, and the utility model is to adopt closed type cover die to forge to machine, become shape Forging both non-trimming and outer rim height concordant, greatly facilitate machining.
Brief description of the drawings
Fig. 1 is the structure cutaway view of rotary drum body.
Fig. 2 is the structural representation of the utility model rotary drum body placenta.
Detailed description of the invention
embodiment 1
A kind of rotary drum body placenta that the present embodiment provides is closed type cover die.As shown in Figure 1, 2: comprise heelpiece 2 and cover die 1, heelpiece 2 structures with go out blank to rush sky part identical, and cross section is the pyramidal structure of W shape, cover die 1 is identical with the peripheral structure that goes out blank, and be cylindrical structural, heelpiece 2 and cover die 1 have coordinated loose tool to produce up and down.
The mold materials adopting is 5CrNiMo hot die steel, loose tool heat treatment hardness is HRC45~47, and percent thermal shrinkage gets 1.5%, and impression design size is forging ' s block dimension heat shrink rate, get ± 0.1mm of impression dimensional tolerance, impression surface roughness is Ra (U) 1.6.
To go out blank and be inverted on the interior heelpiece 2 of rotary drum body placenta, cover die 1 coordinates up and down ejection feed collet is fastened with heelpiece 2, and top is developed stewing shaping with corresponding dinking 3 to going out blank bottom impression.
In addition to the implementation, the utility model can also have other embodiments.All employings are equal to the technical scheme of replacement or equivalent transformation formation, all drop on the protection domain of the utility model requirement.

Claims (4)

1. a major diameter rotary drum body placenta, is characterized in that: comprise heelpiece and cover die, described base mat structure with go out blank to rush sky part identical, and cross section is the pyramidal structure of W shape; Described cover die with described in to go out the peripheral structure of blank identical, and be cylindrical structural, described heelpiece and cover die are by being connected up and down;
Described get ± 0.1mm of placenta impression dimensional tolerance, impression surface roughness is Ra (U) 1.6.
2. major diameter rotary drum body placenta according to claim 1, is characterized in that: described rotary drum body placenta is closed type cover die.
3. major diameter rotary drum body placenta according to claim 1, is characterized in that: the mold materials adopting is 5CrNiMo hot die steel.
4. major diameter rotary drum body placenta according to claim 1, is characterized in that: the diameter range of described rotary drum body is φ 495-φ 510mm.
CN201320824956.4U 2013-12-12 2013-12-12 Large-diameter rotating drum tire mold Active CN203679136U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201320824956.4U CN203679136U (en) 2013-12-12 2013-12-12 Large-diameter rotating drum tire mold

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201320824956.4U CN203679136U (en) 2013-12-12 2013-12-12 Large-diameter rotating drum tire mold

Publications (1)

Publication Number Publication Date
CN203679136U true CN203679136U (en) 2014-07-02

Family

ID=51001096

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201320824956.4U Active CN203679136U (en) 2013-12-12 2013-12-12 Large-diameter rotating drum tire mold

Country Status (1)

Country Link
CN (1) CN203679136U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107186148A (en) * 2017-07-13 2017-09-22 苏州昆仑重型装备制造有限公司 The mould of rotary drum is forged on common hydraulic press

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107186148A (en) * 2017-07-13 2017-09-22 苏州昆仑重型装备制造有限公司 The mould of rotary drum is forged on common hydraulic press

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