CN101417304A - Method for producing sample-piece mold using cement - Google Patents

Abstract

The invention relates to a method for manufacturing an automobile sample mould by cement, which is used for automobiles and includes the following steps: a. a simple convex model is processed by using the traditional method and a wax sheet with the same thickness of a stamping plate material is pasted on the convex model; b. a concave model matrix is casted, a space about 30mm is reserved as the space for filling post cement; c. the upper surface and the lower surface of the casted concave model matrix is flat-processed to be parallel; d. the concave model matrix is placed on a platform, and the convex model pasted with the wax sheet is buckled on the concave model matrix so as to form an assembly by connection and fixing, and then the assembly is turned over; e. high-strong alumina cement is used for pouring; and f. the assembly is placed for a period of time, and after the solidification formation of the cement, the convex model is detached, the modeled surface of the cement is polished, and then a concave model body with the matrix of casting and modeled surface of cement is obtained The method shortens the manufacturing period of the mould and reduces costs of manufacturing and materials.

Description

Utilize cement to make the method for sample-piece mold

Technical field

The present invention relates to the automobile die manufacturing, particularly utilize cement to make the method for the simple and easy moulding class of automobile exemplar mould.

Background technology

Most of automobile all will be made sample car and carry out many tests such as road examination, collision before formally entering production, utilize test data to revise the design parameter of car load.Just require fabrication cycle weak point, simple structure, characteristics such as with low cost at the sample-piece mold of sample car exploitation.At present the common way in the industry is only to do moulding class simple die, and other operations are finished exemplar and made by laser cutting, manual mode such as auxiliary.The basic skills that present most of automobile die manufacturer makes simple and easy moulding class mould be take whole cast iron, machinable resin to make profile, low-melting alloy is made these three kinds of modes of profile.The cast iron sample-piece mold has long advantage of life-span, but exist the cycle long, must carry out complete digital control processing to the punch-die profile, the shortcoming that manufacturing cost is high; The machinable resin exists the cycle short, but resin price is relatively more expensive, need the shortcoming of complete profile digital control processing equally.Though the low-melting alloy sample-piece mold without the digital control processing profile, exists low-melting alloy cost costliness, manufacturing process to need heating, and general Production of Stamping Die producer does not possess the firing equipment of having, and is not easy to extensive popularization.

Summary of the invention

In order to address the above problem, the present invention has announced a kind of method of utilizing cement to make the simple and easy moulding class of exemplar mould, and this method comprises the steps:

A. process simple convex with conventional method, and stick wax disk(-sc) with pressed sheet material uniform thickness in the punch profile;

B. cast the die matrix, reserve the packing space of space, the 30mm left and right sides during casting as follow-up cement;

C. it is parallel to cast the flat processing in die matrix top and bottom;

D. the die matrix is placed on the horizontal stand, and the punch that will post wax disk(-sc) is buckled on the die matrix, is connected into an assembly, again with its whole upset;

E. use the high-strength, quick-drying cement casting;

F. after placing the moulding that thes cement solidifies such as a period of time, the polishing cement type surface, obtaining matrix is the die body of cement for casting, profile.

The present invention utilizes cast iron to make the die of the simple and easy moulding class of automobile exemplar mould as die matrix, cement as the die profile, and employing the invention has the beneficial effects as follows: 1. material is easy to buying, is easy to buying as the cement of construction material on market; 2. cement price is cheap; 3. only need digital control processing punch profile, the die profile adopts casting to form, and has reduced the digital control processing workload; 4. shorten the manufacturing cycle greatly; 5. effectively reduce the simple and easy moulding class of exemplar mould development cost.

The specific embodiment

The invention discloses a kind of method of utilizing cement to make the simple and easy moulding class of automobile exemplar mould, this method material is easy to buying, the cycle is fast, cost is low.

At first, adopt the way of digital control processing to process simple convex, on punch, stick wax disk(-sc) then with pressed sheet material uniform thickness.Then cast the die matrix, reserve the packing space of space, the 30mm left and right sides during casting as follow-up cement.Afterwards that the flat processing in the die matrix top and bottom that cast out is parallel, place the die matrix on horizontal stand, the die matrix is placed on the platform.And the punch that will post wax disk(-sc) is buckled on the die matrix, is connected into an assembly, again with its whole upset.Pour into a mould with high-strength, quick-drying cement then.With after the moulding that the cement solidifies such as its placement a period of time, dismantle punch behind the casting complete.The polishing cement type surface as: casting burr, casting defect, molding concave die oral area fillet etc., obtaining matrix is the die body of cement for casting, profile.Suppress the sample car part on this basis.

Claims (1)

1. method of utilizing cement to make the simple and easy moulding class of automobile exemplar mould is characterized in that this method is carried out as follows:

A. process simple convex with conventional method, and on convex model, stick the wax disk(-sc) with pressed sheet material uniform thickness;

B. cast the die matrix, reserve the packing space of space, the 30mm left and right sides during casting as follow-up cement;

C. the flat processing in the die matrix top and bottom that cast out is parallel;

D. the die matrix is placed on the platform, and the punch that will post wax disk(-sc) is buckled on the die matrix, is connected into an assembly, again with its whole upset;

E. use the high-strength, quick-drying cement casting;

F. after placing the moulding that thes cement solidifies such as a period of time, the polishing cement type surface, obtaining matrix is the die body of cement for casting, profile.