1, the cutting die is-hardware die; Refers to the mold that punches out the product material according to the product shape.
2. "Interference" in the mold refers to the distance of the metal mold. That is, the ranking of the mold involved; And how many millimeters the cutting distance is.
What is the meaning of assembly interference in mold design? Thank you.
Interference refers to whether parts overlap each other.
What is interference in injection mold? 5 points
Bullshit! I don't listen in class. I can't even ask questions.
What is the mold for?
As a special mechanical product, the mold industry can't produce parts or mechanical products by developing and manufacturing mechanical products like other mechanical industries & mechanical products. Only through the designer's theoretical design can we basically ensure the required functions and use requirements that will be achieved in the end. That is to say, for most other mechanical products, if the processing technology can completely or as far as possible meet the design accuracy and requirements, the final product will not deviate too much from the original design purpose. That is to say, a perfect design can produce a perfect product under the guarantee of processing conditions. At the same time, the theoretical basis of the design of this kind of products, such as various machine tools and power equipment, has become very mature, perfect and practical after decades of continuous research in some old capitalist countries and even hundreds of years of non-development.
Mold products are different, because no matter injection molding, die casting, high-temperature flow molding or normal-temperature stamping plastic molding, although there are decades of research and application history, there are still great uncertainties because the basic theory and mathematical model are not perfect and accurate, especially in China, most of them still rely on the experience of on-site debugging to make the mold products as perfect as possible and the products produced meet the requirements of users, so at the design stage, most of them are currently. ! In other words, the quality of the mold usually depends on the technology of the fitter. The final confrontation of mold products from different manufacturers may be a fitter's skill contest. In this line, designers and pre-processors can only play a supporting role in the confrontation.
I don't know, I didn't say whether the majority of colleagues agree or not, but it is a fact. No matter how perfect the mold design is, no matter how good the drawings are, no matter how expensive the equipment is, at present, it is ultimately up to the die fitter to reflect the former's labor and wisdom. Without them, our design is probably a pile of scrap metal! ! !
In addition, at present, our research on remodeling structures, especially complex mechanical structures (such as various wedge-shaped linkage mechanisms in automobile molds) is not deep enough, and there is no technology or even patent that can lead the world. Some advanced and complex structures are mainly designed with reference to foreign precedents, and the level of independent research and development is relatively weak. On the contrary, assemblers may be better at reassembling and debugging these mechanisms than abroad.
As mentioned above, the imperfect plastic forming theory and mathematical modeling lead to the imperfect analysis and formulation of stamping process in the design stage, which requires a lot of debugging in the later stage of fitter. There may not be an immediate solution to this problem for the time being, and designers have reason to appropriately shirk their responsibilities. However, the mechanical structure of the mold is not good, and we seem a little sorry for this "hard injury". Of course, I think this is also caused by many reasons.
First of all, the relatively high-end mold mechanical structure is usually only used for more complicated parts and processes, such as the pressing of side plates, fenders and hoods of automobiles. Because most domestic automobile manufacturers are Sino-foreign joint ventures and other reasons, it is difficult for domestic mold enterprises to manufacture molds for such products, and they rarely talk about similar parts of brand-new models, so our actual combat opportunities are few. Some powerful manufacturers may have carried out practical theoretical design in production tasks. Finally,!
Second, even in this difficult opportunity, most manufacturers may search for foreign original drawings and then design them. The final mechanical structure may be improved and perfected, and become a mold product with China characteristics, or even exported to these countries, but it is difficult to really brand it as "Made in China" in the end. Foreign drawings and Sinosteel can be put together without panic, hehe.
Therefore, our mold industry, no matter from design, research and development or machining, has inherent defects of lack of originality and independent technology. The only innate advantage may be that the skills of die fitters evolved from the superb skills of our ancestors. On that day, the world die fitter competition was held, and the voice of our players to win the championship may be higher than that of * * * to step down. Use me in the first battle and win with me! !
What is the mold for?
Mold is a tool or equipment for curing the shape or structure of filler.
For example, water is a cylinder in a round cup and a cuboid in a square cup.
This cup is like a mold.
Another example: patterns that can't be printed by different stamps,
This stamp acts like a mold.
There are many molds in production and life, such as:
Moon cake mold, cake mold and popsicle mold can all make the same cake.
Injection mold, pouring mold and stamping mold can all make exactly the same workpiece.
In the same word, mold refers to mold.
What do you mean by avoidance and foolproof in the mold?
Appropriately giving way in the unsealed part (which not only ensures the line position but also does not affect the fit) is called avoiding gaps. The main purpose is to reduce the interference between the slide blocks of the mold core, so as to better fit the mold or reduce unnecessary complicated processing, especially in the mold core with the requirement of slide block fit or the mold core with pillow position.
Foolproof is to prevent some mold personnel from assembling some mold parts by mistake in the process of assembly, maintenance and mold trial. For example, if you design a square insert, you can make three corners and one corner at right angles, and the corresponding position of the template is the same, so it won't be wrong.
Interference problem of die inclined top
I'm a stamping die, and I don't know much about it, but I know this kind of person can do the draft angle to pull the core. In this way, there will be interference, and the bumps will become smaller or offset to avoid interference.
What is the mold for?
Mold )( mújù) refers to various molds and tools used in industrial production, and the required products are obtained through injection molding, blow molding, extrusion, die casting or forging, melting and stamping.
In short, molds are tools used to make molded products. This tool is composed of various parts, and different molds are composed of different parts. It mainly realizes the processing of the shape of the article by changing the physical state of the molding material. Known as the "mother of industry".
What does it mean to reverse the inside of the mold?
That is, the area that interferes with the mold opening direction is called backstepping. Generally speaking, these areas can be clearly found by detecting the sketches of 3D models with software.
If the product is inverted, there will usually be a corresponding inversion processing system when making the mold, such as sliding block tilting.