级进模模具设计英文文献和翻译(3)
(5) Mold degree of standardization
The country level is to improve their standards together, our standards of the mold using coverage has reached 30% or so foreign countries. in general, about 80%。
(6) High quality material and advanced surface treatment technology
Use high-quality steel and application of the surface treatment technology for improving the life of the machine mold is necessary to mold and surface treatment. treatment is full of mold steel material performance of the key link。Mold heat treatment is development direction of the treatment a vacuum. mold surface treatment should be developed in the process of the sedimentary (tin, for the tic), plasma spray application for。
(7) Mold lapping will be automated, intellectualized
Mold surface to mold the quality of life, a look of the quality as a greater impact and automation, intellectualized abrasive and polishing way substitute for existing hand to improve the quality of the machine mold is an important trend。
(8) Stencil processing system of automatic
This is our long-term development objectives. stencil an automatic processing system should be more reasonable the combination ； machine with a means or location of the corporation, a complete ； tool digit control machine tool ； a whole library system digit control machine tool the synchronization ； quality monitoring and control systems。
2 More station level in our country also developing a few questions
Level in the design and manufacture of mould, in recent years in many businesses in both the quantity or quality, we also have a relatively rapid growth. but at the same time, to meet the types of machine stamp out the material requirements, and steps into the course of construction and manufacturing process, we must be more high value and seriously, because this is the advanced level in technical can be adopted and its economic performance.
2.1 Level in the course of the equipment required for medium pressure (m.p.)
Production of 100 tons of small and medium pressures and mechanical decades structure no big change. most of the change button or the market in the clutch and the sexual bias wo lun shi leather machine tools, not only the noise and vibration, and could not achieve the slider inch of the journey and transient emergency brake. sliders guidance precision is low, the ability to withstand the force, the majority or adjustable for use. this level in the course of production is not an ideal。Mainly embodied in the next several areas：
(1) Level in the course will inevitably there are different levels of stress and to the force center is not only wish to stress that the accuracy, strong, and the slider to long withstand the big to force。
(2) In successive steps in the course of production, in order to avoid parts of the material to, or a larger place, and partial offset the machine mold is abnormal for a stamp out of the mold damage, when the tool set on the protection and safety inspection unit。If all the above-mentioned, the machine can turn on a brief moment to ask (usually in the 100 ～ 200 ms) stop movement. this requires the pressure of a corporation has stopped functioning.
As shown in figure 1, for example, when the material was sent to the correct location, this club, he can't enter the section had been rushed out of the hole. then the measuring rod was the material against and overcome stress on the up ramp, the use of the top and promote the switch and is made, and thereby the pressure of the control box to a request for urgent up electrical signal. for the rate of around 100 at times of stress, as long as the testing of the relable accuracy and fit, may be in zhi。
我国多工位级进模发展中的几个问题
级进模的设计与制造，近几年来在许多企业里无论是数量还是质量水平上,都已经有了一个较快的发展。但在此同时，与之相适应的冲压机床种类，对冲压料的要求，以及级进模选用的结构类型和制造工艺等都必须更加引起我们的高重视和认真对待，因为这是先进的级进模技术赖以采用，并得以充分发挥效益的基础。
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