CN201720382U - Mold cavity for forging inner and outer star wheels - Google Patents

Mold cavity for forging inner and outer star wheels Download PDF

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Publication number
CN201720382U
CN201720382U CN2010202709772U CN201020270977U CN201720382U CN 201720382 U CN201720382 U CN 201720382U CN 2010202709772 U CN2010202709772 U CN 2010202709772U CN 201020270977 U CN201020270977 U CN 201020270977U CN 201720382 U CN201720382 U CN 201720382U
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CN
China
Prior art keywords
groove
wheel
terminal
described terminal
star
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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.)
Expired - Lifetime
Application number
CN2010202709772U
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Chinese (zh)
Inventor
伏中夏
陆文渊
缪桃生
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Shanghai Aichi Forging Co Ltd
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Shanghai Aichi Forging Co Ltd
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Priority to CN2010202709772U priority Critical patent/CN201720382U/en
Application granted granted Critical
Publication of CN201720382U publication Critical patent/CN201720382U/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Abstract

The utility model discloses a mold cavity for forging inner and outer star wheels. The mold cavity comprises a terminal upper mold and a terminal lower mold, a cavity capable of forging the inner and the outer star wheels in a complete set is formed at the center of a space surrounded by the lower end surface of the terminal upper mold and the upper end surface of the terminal lower mold, an outer groove is upwardly recessed from the center of the lower end surface of the terminal upper mold, an inner groove, of which the diameter is identical to the outer diameter of the outer star wheel, is further upwardly recessed from the center of the outer groove, and a flange, of which the outer diameter is identical to the inner diameter of the outer star wheel, protrudes downwardly from the center of the bottom surface of the inner groove; and a primary stepped groove which is large at the top and small at the bottom is recessed downwardly from the center of the upper end surface of the terminal lower mold, the diameter of the upper groove of the stepped groove is identical to the diameter the inner groove of the terminal upper mold, and the diameter of the lower groove of the stepped groove is identical to the outer diameter of the inner star wheel. The mold cavity for forging inner and outer star wheels has the benefits of higher utilization ratio of materials used in products, reduction of manufacturing cost and improvement on production efficiency.

Description

A kind of mold cavity that forges inside and outside star-wheel
Technical field
The utility model relates to a kind of mold cavity, is specifically related to a kind of mold cavity that forges inside and outside star-wheel.
Background technology
Inside and outside star-wheel belongs to the parts (seeing Fig. 1 a and Fig. 1 b) on the automobile differential, the inner diameter d 1 of out star wheel 10 is slightly larger than the outside diameter d 2 of star-wheel 20, the thickness H of out star wheel 10 is greater than the thickness h of star-wheel 20, and the material unanimity of two series products, inside and outside in the past star-wheel is offered mould usually respectively and is separately forged when forging, and the inner chamber waste material of out star wheel does not utilize (see figure 1).Original technology is out star wheel to be placed on adopt open type to forge production on the crank press.Star-wheel then is to produce on the high speed upsetter.Two kinds of product needed heat respectively, therefore, high material consumption not only, energy loss is also big.
The utility model content
The purpose of this utility model is in order to overcome the defective of prior art, a kind of mold cavity that forges inside and outside star-wheel to be provided, and it can improve the stock utilization of product, reduces production costs, and enhances productivity.
The technical scheme that realizes above-mentioned purpose is: a kind of mold cavity that forges inside and outside star-wheel, comprise terminal patrix and terminal counterdie, wherein, be formed centrally a die cavity that can completely forge described inside and outside star-wheel in after the upper surface of the lower surface of described terminal patrix and described terminal counterdie surrounds.
The mold cavity of the above-mentioned inside and outside star-wheel of forging, wherein, the boss of the external diameter coupling of down prominent external diameter of the lower surface central authorities of described terminal patrix and described out star wheel, the prominent downwards again flange that the internal diameter coupling of an external diameter and described out star wheel is arranged of the bottom surface central authorities of this boss; The groove of the boss external diameter of recessed diameter of the upper surface mediad of described terminal counterdie and described terminal patrix coupling, the degree of depth of this groove deduct the thickness that equals described out star wheel behind the height of boss of described terminal patrix.
The mold cavity of the above-mentioned inside and outside star-wheel of forging, wherein, the bottom surface axis of centres of the groove of described terminal counterdie is to offering a push-rod hole.
The mold cavity of the above-mentioned inside and outside star-wheel of forging, wherein, recessed one outer groove on the lower surface mediad of described terminal patrix, make progress the again inner groovy of external diameter coupling of a recessed diameter and described out star wheel of the central authorities of this groove, the flange that the internal diameter of the down prominent external diameter of the bottom surface central authorities of this inner groovy and described out star wheel mates; The one-level step groove that the upper surface mediad recessed of described terminal counterdie is up big and down small, the equal diameters of the inner groovy of the diameter of the upper groove of this step groove and described terminal patrix, the diameter of the low groove of described step groove and the external diameter of described star-wheel coupling; The degree of depth sum of the inner groovy of the degree of depth of the upper groove of described terminal counterdie and described terminal patrix equals the thickness of described out star wheel, and the degree of depth sum of the low groove of the degree of depth of the upper groove of described terminal counterdie and described terminal counterdie equals the thickness sum of the thickness and the described out star wheel of described star-wheel; The height of the flange of described terminal patrix equals the degree of depth of the upper groove of described terminal counterdie.
The mold cavity of the above-mentioned inside and outside star-wheel of forging, wherein, the bottom surface axis of centres of the low groove of described terminal counterdie is to offering a push-rod hole.
The technical scheme of the mold cavity of the inside and outside star-wheel of forging of the present utility model, the mould that forges inside and outside star-wheel is merged into one pair, promptly forge inside and outside star-wheel simultaneously, the out star wheel waste material is transformed into a part of material on the star-wheel in the cover mode of beating, thus the utilization rate of raising material.Feed consumption only needs 2.45kg, and promptly a cover product can be saved 0.73kg, by price more than the 6000 yuan of calculating per ton of this material at that time, can reduce 3 yuan of costs/cover at least.Simultaneously,, reduced starting of energy consumption and equipment, thereby reduced production cost, improved production efficiency owing to be on a production line, to produce two products simultaneously.
Description of drawings
Fig. 1 a and Fig. 1 b are respectively the profile of inside and outside star-wheel;
A kind of structural representation of the mold cavity of the inside and outside star-wheel of Fig. 2 a forging of the present utility model;
The structural representation of the forging blank of the inside and outside star-wheel that Fig. 2 b forges out for the mold cavity among Fig. 2 a;
The another kind of structural representation of the mold cavity of the inside and outside star-wheel of Fig. 3 a forging of the present utility model;
The structural representation of the forging blank of the inside and outside star-wheel that Fig. 3 b forges out for the mold cavity among Fig. 3 a.
The specific embodiment
In order to understand the technical solution of the utility model better, also be described in detail in conjunction with the accompanying drawings below by specific embodiment:
See also Fig. 2 a and Fig. 3 a, a kind of mold cavity that forges inside and outside star-wheel of the present utility model, comprise terminal patrix 1 and terminal counterdie 2, be formed centrally a die cavity that can completely forge inside and outside star-wheel in after the upper surface of the lower surface of terminal patrix 1 and terminal counterdie 2 surrounds.
(see also Fig. 2 a) in one embodiment also in conjunction with consulting Fig. 1 a and Fig. 1 b, the boss 11 of outer diameter D 1 coupling of down prominent external diameter of the lower surface central authorities of terminal patrix 1 and out star wheel 10, the prominent downwards again flange 12 that inner diameter d 1 coupling of an external diameter and out star wheel 10 is arranged of the bottom surface central authorities of this boss 11; The groove 21 of boss 11 external diameters of recessed diameter of the upper surface mediad of terminal counterdie 2 and terminal patrix 1 coupling, the degree of depth of this groove 21 deduct the thickness H that equals out star wheel 10 behind the height of boss 11 of terminal patrix 1.The bottom surface axis of centres of the groove 21 of terminal counterdie 2 is to offering the push-rod hole 22 of a diameter less than the inner diameter d 2 of star-wheel 20.
Above-mentioned mould is when forging, the boss 11 of terminal patrix 1 enters in the groove 21 of terminal counterdie 2, groove 21 end faces up to terminal counterdie 2 are attached on boss 11 bottom surfaces of terminal patrix 1, at this moment, the two sides of the end face of the boss 11 of the two sides of the groove 21 of terminal counterdie 2 and bottom surface and terminal patrix 1, flange 12 and end face are enclosed a die cavity that can completely forge inside and outside star-wheel.
The blank that above-mentioned mould forges out (seeing also Fig. 2 b) is as long as just can obtain the forging blank of outside out star wheel 10 and the forging blank of inner star-wheel 20 from central authorities according to the cutting of the internal diameter of out star wheel 10.This mould structure is simple, manufactures and designs conveniently, and forging quality is controlled easily, and the equipment needed thereby tonnage is little, small investment.
In another kind of embodiment, (see also Fig. 3 a) also in conjunction with consulting Fig. 1 a and Fig. 1 b, recessed one outer groove 13 on the lower surface mediad of terminal patrix 1, the flange 15 that make progress the again inner groovy 14 of outer diameter D 1 coupling of a recessed diameter and out star wheel 10 of the central authorities of this groove 13, the down prominent external diameter of the bottom surface central authorities of this inner groovy 14 and the inner diameter d 1 of out star wheel 10 mate.The one-level step groove that the upper surface mediad recessed of terminal counterdie 2 is up big and down small, the equal diameters of the diameter of the upper groove 23 of this step groove and the inner groovy 14 of terminal patrix, the diameter of the low groove 24 of step groove and the outer diameter D of star-wheel 20 2 couplings.The degree of depth sum of the degree of depth of the upper groove 23 of terminal counterdie 2 and the inner groovy 14 of terminal patrix 1 equals the thickness H of out star wheel 10, and the degree of depth sum of the low groove 24 of the degree of depth of the upper groove 23 of terminal counterdie 20 and terminal counterdie 2 equals the thickness h of star-wheel 20 and the thickness H sum of out star wheel 10.The height of the flange 15 of terminal patrix 1 equals the degree of depth of the upper groove 23 of terminal counterdie 2.The bottom surface axis of centres of the low groove 24 of terminal counterdie 2 is to offering inner diameter d 2 push-rod holes 22 of a diameter less than star-wheel 20.
Above-mentioned mould is when forging, terminal counterdie 2 enters in the outer groove 13 of terminal patrix 1, be attached to the bottom surface of the outer groove 13 of terminal patrix 1 up to the end face of the step groove of terminal counterdie 2, at this moment, a die cavity that can completely forge inside and outside star-wheel is enclosed in the two sides of the two sides of the upper groove 23 of the two sides of the flange 15 of the two sides of the inner groovy 14 of terminal patrix 1 and bottom surface, terminal patrix 1 and end face, terminal counterdie 2 and bottom surface and low groove 24 and bottom surface.
The blank that above-mentioned mould forges out sees also Fig. 3 b, as long as just can obtain the forging blank of the star-wheel 20 of the forging blank of out star wheel 10 on top and bottom along the downward cutting of recess walls of central authorities.This mould shearing force of becoming a partner requires lessly, and stock utilization is than higher.
Those of ordinary skill in the art will be appreciated that, above embodiment is used for illustrating the utility model, and be not to be used as qualification of the present utility model, as long as in connotation scope of the present utility model, all will drop in claims scope of the present utility model variation, the modification of the above embodiment.

Claims (5)

1. a mold cavity that forges inside and outside star-wheel comprises terminal patrix and terminal counterdie, it is characterized in that, is formed centrally a die cavity that can completely forge described inside and outside star-wheel in after the upper surface of the lower surface of described terminal patrix and described terminal counterdie surrounds.
2. the mold cavity of the inside and outside star-wheel of forging according to claim 1 is characterized in that,
The boss of the external diameter coupling of down prominent external diameter of the lower surface central authorities of described terminal patrix and described out star wheel, the prominent downwards again flange that the internal diameter coupling of an external diameter and described out star wheel is arranged of the bottom surface central authorities of this boss;
The groove of the boss external diameter of recessed diameter of the upper surface mediad of described terminal counterdie and described terminal patrix coupling, the degree of depth of this groove deduct the thickness that equals described out star wheel behind the height of boss of described terminal patrix.
3. the mold cavity of the inside and outside star-wheel of forging according to claim 2 is characterized in that, the bottom surface axis of centres of the groove of described terminal counterdie is to offering a push-rod hole.
4. the mold cavity of the inside and outside star-wheel of forging according to claim 1 is characterized in that,
Recessed one outer groove on the lower surface mediad of described terminal patrix, make progress the again inner groovy of external diameter coupling of a recessed diameter and described out star wheel of the central authorities of this groove, the flange that the internal diameter of the down prominent external diameter of the bottom surface central authorities of this inner groovy and described out star wheel mates;
The one-level step groove that the upper surface mediad recessed of described terminal counterdie is up big and down small, the equal diameters of the inner groovy of the diameter of the upper groove of this step groove and described terminal patrix, the diameter of the low groove of described step groove and the external diameter of described star-wheel coupling;
The degree of depth sum of the inner groovy of the degree of depth of the upper groove of described terminal counterdie and described terminal patrix equals the thickness of described out star wheel, and the degree of depth sum of the low groove of the degree of depth of the upper groove of described terminal counterdie and described terminal counterdie equals the thickness sum of the thickness and the described out star wheel of described star-wheel;
The height of the flange of described terminal patrix equals the degree of depth of the upper groove of described terminal counterdie.
5. the mold cavity of the inside and outside star-wheel of forging according to claim 4 is characterized in that, the bottom surface axis of centres of the low groove of described terminal counterdie is to offering a push-rod hole.
CN2010202709772U 2010-07-26 2010-07-26 Mold cavity for forging inner and outer star wheels Expired - Lifetime CN201720382U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2010202709772U CN201720382U (en) 2010-07-26 2010-07-26 Mold cavity for forging inner and outer star wheels

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2010202709772U CN201720382U (en) 2010-07-26 2010-07-26 Mold cavity for forging inner and outer star wheels

Publications (1)

Publication Number Publication Date
CN201720382U true CN201720382U (en) 2011-01-26

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104014705A (en) * 2014-05-13 2014-09-03 盐城理研精密锻造有限公司 Inner star wheel forming die
CN106141058A (en) * 2015-04-15 2016-11-23 昌利锻造有限公司 One combines gear ring forging mold
CN106391967A (en) * 2016-09-30 2017-02-15 浙江德福精密驱动制造有限公司 Forming die of transmission shaft external star-wheel forged piece
CN106694789A (en) * 2017-02-21 2017-05-24 上海交大中京锻压有限公司 Die forging process and equipment of besides-star wheel and star wheel blanks for automobile drive shaft

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104014705A (en) * 2014-05-13 2014-09-03 盐城理研精密锻造有限公司 Inner star wheel forming die
CN104014705B (en) * 2014-05-13 2016-03-16 盐城理研精密锻造有限公司 A kind of star-wheel mould
CN106141058A (en) * 2015-04-15 2016-11-23 昌利锻造有限公司 One combines gear ring forging mold
CN106391967A (en) * 2016-09-30 2017-02-15 浙江德福精密驱动制造有限公司 Forming die of transmission shaft external star-wheel forged piece
CN106694789A (en) * 2017-02-21 2017-05-24 上海交大中京锻压有限公司 Die forging process and equipment of besides-star wheel and star wheel blanks for automobile drive shaft

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Granted publication date: 20110126

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