CN202861357U - Die casting mold of car gearbox housing - Google Patents

Die casting mold of car gearbox housing Download PDF

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Publication number
CN202861357U
CN202861357U CN 201220516981 CN201220516981U CN202861357U CN 202861357 U CN202861357 U CN 202861357U CN 201220516981 CN201220516981 CN 201220516981 CN 201220516981 U CN201220516981 U CN 201220516981U CN 202861357 U CN202861357 U CN 202861357U
Authority
CN
China
Prior art keywords
die casting
core
gearbox housing
loose piece
car gearbox
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.)
Expired - Fee Related
Application number
CN 201220516981
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Chinese (zh)
Inventor
沈成溜
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.)
CHONGQING BAIJI SIXING CASTING Co Ltd
Original Assignee
CHONGQING BAIJI SIXING CASTING 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.)
Filing date
Publication date
Application filed by CHONGQING BAIJI SIXING CASTING Co Ltd filed Critical CHONGQING BAIJI SIXING CASTING Co Ltd
Priority to CN 201220516981 priority Critical patent/CN202861357U/en
Application granted granted Critical
Publication of CN202861357U publication Critical patent/CN202861357U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model belongs to the technical field of die casting molds, and particularly relates to a die casting mold of a car gearbox housing. The die casting mold of the car gearbox housing comprises a fixed mold frame and a fixed mold core, wherein a cross core-pulling part is arranged in the fixed mold core, a limited post is further arranged in the fixed mold core, and a loose piece is arranged between the limited post and the cross core-pulling part. The die casting mold of the car gearbox housing aims to solve problems that formed products with nonuniform wall thickness, the products are difficult to demold and the like caused by unreasonable structure design in the existing car gearbox housing molds.

Description

The automobile speed variator die casting
Technical field
The utility model belongs to the die casting technical field, is specifically related to the automobile speed variator die casting.
Background technology
The automobile speed variator of former domestic and international production adopts the black sand casting process mostly.The mould structure design comparison of this process using is complicated, uses very trouble.Along with the progress of Tool and Die Technology, someone begins to adopt extrusion process to substitute casting technique, and adopts die casting to produce case of transmission, and the structure that this has simplified mould to a certain extent uses more convenient.Yet, adopt this die casting, because the automobile speed variator inwall has three unsettled protuberances, need the mode processing and manufacturing by cross core-loosing.Three of this protuberances are unsettled, not only can't guarantee the uniformity of case of transmission wall thickness when die casting, and product stripping are very difficult.Not only greatly increased workman's the amount of labour, reduced operating efficiency, and the qualification rate of product is lower, greatly increased production cost, be unfavorable for very much long-run development and the progress of enterprise.
The utility model content
The purpose of this utility model: for solve existing automobile speed variator mould structure design unreasonable and bring the product wall unevenness of moulding even, the problems such as product stripping is difficult, and the automobile speed variator die casting is proposed.
The technical solution of the utility model: automobile speed variator die casting, comprise cover half frame and cover half core, described cover half in-core is provided with cross core-loosing section, and described cover half in-core also is provided with limited post, and card is placed with loose piece between described limited post and cross core-loosing section.
Automobile speed variator die casting of the present utility model during use, snaps in loose piece between limited post and the cross core-loosing section first, and then matched moulds begins die casting, and after die casting was finished, blank was taken out in first die sinking, then took out the loose piece in the blank for subsequent use.Such structural design, the wall thickness of moulding Rear Derailleur housing is very even, and the demoulding of product is also very convenient.Not only greatly reduce workman's the amount of labour, improved operating efficiency, and greatly improved the qualification rate of product, reduced production cost, be very beneficial for long-run development and the progress of enterprise.
Further, the position of the corresponding cover half frame of described loose piece is provided with loose piece and ejects the hole.
Loose piece ejects the setting in hole, so that after die casting finishes, can adopt liftout attachment to eject the hole by loose piece and the loose piece in the blank be ejected for subsequent use, not only very easy to use, and greatly reduces production cost.
Description of drawings
Fig. 1 is the structural representation of the embodiment of the utility model automobile speed variator die casting;
Fig. 2 is the enlarged drawing of A among Fig. 1.
The specific embodiment
As depicted in figs. 1 and 2, the utility model provides the automobile speed variator die casting, comprise cover half frame 1 and cover half core 2, be provided with cross core-loosing section 3 and limited post 5 in the cover half core 2, and card is placed with loose piece 4 between limited post 5 and cross core-loosing section 3, and the position of loose piece 4 corresponding cover half frames 1 is provided with loose piece and ejects the hole.
In the present embodiment, arranging of loose piece 4 is very crucial, and it can play the supporting role to cross core-loosing section 3 lower ends and cover half frame 1 inwall, thereby not only can guarantee that moulding Rear Derailleur housing wall thickness is even; And the demoulding is very convenient.Simultaneously, arranging of limited post 5 is extremely important, and it has played a supporting role to loose piece 4, thereby so that the process of die casting is smooth and easy, so that the transmission case weight after the moulding can guarantee.
In addition, loose piece ejects the setting in hole, mainly considers the convenience that loose piece 4 takes out, thereby has greatly reduced workman's the amount of labour, increases work efficiency.
During use, first loose piece 4 is snapped between limited post 5 and the cross core-loosing section 3, then matched moulds begins die casting, and after die casting was finished, blank was taken out in first die sinking, then adopts liftout attachment to eject the hole by loose piece and ejects the loose piece 4 in the blank for subsequent use.Such structural design, loose piece 4 can be reused, and greatly provides cost savings, and has simplified the structure of mould, and is very easy to use.
Above-described only is preferred embodiment of the present utility model, should be understood that for a person skilled in the art, under the prerequisite that does not break away from the utility model structure, can also make some distortion and improvement, these can not affect effect and practical applicability that the utility model is implemented.

Claims (2)

1. automobile speed variator die casting, comprise cover half frame (1) and cover half core (2), be provided with cross core-loosing section (3) in the described cover half core (2), it is characterized in that: also be provided with limited post (5) in the described cover half core (2), and card is placed with loose piece (4) between described limited post (5) and cross core-loosing section (3).
2. automobile speed variator die casting according to claim 1, it is characterized in that: the position of the corresponding cover half frame of described loose piece (4) (1) is provided with loose piece and ejects the hole.
CN 201220516981 2012-10-10 2012-10-10 Die casting mold of car gearbox housing Expired - Fee Related CN202861357U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201220516981 CN202861357U (en) 2012-10-10 2012-10-10 Die casting mold of car gearbox housing

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201220516981 CN202861357U (en) 2012-10-10 2012-10-10 Die casting mold of car gearbox housing

Publications (1)

Publication Number Publication Date
CN202861357U true CN202861357U (en) 2013-04-10

Family

ID=48028115

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 201220516981 Expired - Fee Related CN202861357U (en) 2012-10-10 2012-10-10 Die casting mold of car gearbox housing

Country Status (1)

Country Link
CN (1) CN202861357U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102873298A (en) * 2012-10-10 2013-01-16 重庆百吉四兴压铸有限公司 Casting die for automobile speed changer shell
CN105033222A (en) * 2015-08-12 2015-11-11 重庆市合川区均恒金属加工厂 Die-casting mould for gearbox shell

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102873298A (en) * 2012-10-10 2013-01-16 重庆百吉四兴压铸有限公司 Casting die for automobile speed changer shell
CN102873298B (en) * 2012-10-10 2015-07-01 重庆凯拓科技发展有限公司 Casting die for automobile speed changer shell
CN105033222A (en) * 2015-08-12 2015-11-11 重庆市合川区均恒金属加工厂 Die-casting mould for gearbox shell

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Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
C17 Cessation of patent right
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20130410

Termination date: 20131010