CN103697840A

CN103697840A - Virtual box closing verification method in casting process

Info

Publication number: CN103697840A
Application number: CN201310731641.XA
Authority: CN
Inventors: 郭小利; 唐钟雪; 何启良; 谢厚霓
Original assignee: Kocel Group Co Ltd
Current assignee: Kocel Group Co Ltd
Priority date: 2013-12-27
Filing date: 2013-12-27
Publication date: 2014-04-02

Abstract

The invention relates to a box closing verification method, in particular to a virtual box closing verification method in a casting process, wherein the virtual box closing verification method is used for judging possible mistakes or defects existing in core molding of a sand core and a mold cavity. The method comprises the steps of establishing a cube with a size which is consistent with the size of a sand box in three-dimensional software, differencing the cube and an outer skin model and establishing the cavity; in the process of sand core movement, assembling the core head of the sand core at a core head positioning position in the cavity, setting a key frame at the position and producing a movement animation; starting an interference detection mode and a gap detection mode of the software; under the situation that the sizes are correctly matched, assembling the core head at the core head positioning position in a reasonable way that the size of a gap meets the requirement; when the size of the sand core is not matched with the size of the cavity, making a judgment according to two situations. The virtual box closing verification method in the casting process has the advantages that the method is unique, the mold rejection rate is reduced, the production cost is saved and the goals of smoothly setting the core and closing the box are realized.

Description

Virtual mould assembling verification method in a kind of casting process

Technical field

The present invention relates to a kind of mould assembling verification method, especially relate to a kind of for judging the virtual mould assembling verification method in wrong or not enough a kind of casting process that core and die cavity may exist in cored-up mould.

Background technology

When cast product adopts cored-up mould, in die cavity, conventionally need to place a plurality of cores, the designing quality of core and die cavity is subject to size, core location, pattern draft, model scale etc. compared with multifactor impact.And in traditional cored-up mould, core digital-to-analogue is mated checking with die cavity digital-to-analogue, designed rear direct mfg. moulding die, can not find in advance the wrong or not enough of design, in actual production, easily there is following problem: 1) core and cavity dimension design mistake, that reduced scale adds is inconsistent, it is unreasonable to mate, and causes product size bigger than normal or less than normal; 2) design of core shape is incorrect, and lower core process has interference, stops situation, cannot play core mould assembling.

Up to the present, also there is no a kind of method that overcomes above-mentioned defect.

Summary of the invention

The object of the invention is to overcome the defect of prior art, a kind of method uniqueness is provided, reduces mould scrappage, thus the virtual mould assembling verification method in a kind of casting process of the smoothly lower core mould assembling of realization that saves production cost.

The present invention realizes by the following method:

A virtual mould assembling verification method in casting process, is characterized in that: the method comprises the steps:

A. in three-dimensional software, set up and sandbox cube of the same size, ask poor with crust model, set up die cavity;

B. the sand core head of core is assembled to the place, core print location in above-mentioned die cavity, setting position key frame, makes motion animation herein;

C. in the process of described core motion, open software and interfere detecting pattern and gap detection pattern, the in the situation that of the correct coupling of size, described sand core head is assembled to place, described core print location, and the gap length at position, gap meets the requirements, and is rationally;

When d. the size of described core and the size of die cavity are not mated, judge in two kinds of situation;

Described two kinds of situations are as follows:

A. described core size is bigger than normal, runs into interference and collision in motion process, is interfering the automatic stop motion in position, and high brightness demonstration colliding part, can judge that core or die cavity exist dimensional problem;

B. described core size is less than normal, and excesssive gap between die cavity, at position, gap high brightness, shows excesssive gap position, can judge that core or die cavity exist dimensional problem;

Described three-dimensional software is NX software.

The present invention has following effect:

1) method is unique, by virtual emulation, simulate, in the design phase, just can find the above-mentioned mistake that may exist or problem, carrying out in time core and cavity design revises, avoid making a mistake in follow-up practical operation, thereby realize smoothly lower core mould assembling: the virtual mould assembling verification method in a kind of casting process provided by the invention, adopt virtual software to interfere inspection side, its detection method is: core is positioned in die cavity in assembling mode, in moving process, enable the gap detection pattern of software and interfere detecting pattern, when detecting gap or interfering, core stops mobile, light form shows gap or interferes position.Thereby find out size gap or interference and collision between core and die cavity, carry out in time core and cavity design and revise.

2) reduce mould scrappage, save production cost: method provided by the invention is compared with direct mfg. moulding die after traditional design completes, and the mould that method provided by the invention can reduce to cause such as does over again, reprocesses at the workload.And can simulate mistake or the problem of finding existence in design, time update design proposal, reduces mould scrappage, saves production cost.

Accompanying drawing explanation

Fig. 1 interferes detection figure in mould assembling process of the present invention.

Embodiment

A virtual mould assembling verification method in casting process, as shown in Figure 1: the method comprises the steps:

A. in three-dimensional software, set up and sandbox cube of the same size, ask poor with crust model, set up die cavity 2;

B. the core print sand core head of core 34 being assembled in above-mentioned die cavity 2 is located 5 places, and setting position key frame, makes motion animation herein;

C. in the process of described core 3 motions, open software and interfere detecting pattern and gap detection pattern, the in the situation that of the correct coupling of size, described sand core head 4 is assembled to described core print and locates 5 places, and the gap length at position, gap 7 meets the requirements, be rationally;

When d. the size of described core 3 is not mated with the size of die cavity 2, judge in two kinds of situation.

Described two kinds of situations are as follows:

A. described core 3 sizes are bigger than normal, run into interference and collision in motion process, interfering the position automatic stop motion in 6 places, and high brightness demonstration colliding part, can judge that core or die cavity exist dimensional problem;

B. described core 3 sizes are less than normal, and excesssive gap between die cavity 2, and at position, gap, 7 place's high brightness show excesssive gap position, can judge that core or die cavity exist dimensional problem.

Described three-dimensional software is NX software.

Claims

1. the virtual mould assembling verification method in casting process, is characterized in that: the method comprises the steps:

A. in three-dimensional software, set up and sandbox cube of the same size, ask poor with crust model, set up die cavity (2);

B. the core print location (5) sand core head of core (3) (4) being assembled in above-mentioned die cavity (2) is located, and setting position key frame, makes motion animation herein;

C. in the process of described core (3) motion, open software and interfere detecting pattern and gap detection pattern, the in the situation that of the correct coupling of size, described sand core head (4) is assembled to described core print location (5) and locates, and the gap length of position, gap (7) meets the requirements, be rationally;

When d. the size of described core (3) is not mated with the size of die cavity (2), judge in two kinds of situation.

2. the virtual mould assembling verification method in a kind of casting process as claimed in claim 1, is characterized in that: described two kinds of situations are as follows:

A. described core (3) size is bigger than normal, runs into interference and collision in motion process, is interfering position (6) to locate automatic stop motion, and high brightness demonstration colliding part, can judge that core or die cavity exist dimensional problem;

B. described core (3) size is less than normal, and excesssive gap between die cavity (2), locates high brightness show excesssive gap position in position, gap (7), can judge that core or die cavity exist dimensional problem.

3. the virtual mould assembling verification method in a kind of casting process as claimed in claim 1, is characterized in that: described three-dimensional software is NX software.