Processing custom plastic molds, producing precision manufacturing plastic molds, custom-designed injection mold processing plants
Do you still know the common processing methods of precision molds?
The improvement of living standards has driven the development of industry, which has made the quality requirements of the industry higher and higher, but it is also for the sake of our safety. Regarding precision mold processing, we briefly listed a few, and hope to help you.
No matter what kind of precision molds are manufactured, processing equipment is inseparable. The main processes of precision mold manufacturing include CNC milling, slow wire cutting, EDM, grinding, turning, measurement, automation, etc.
One, CNC milling processing
The main cavity and surface of the plastic mold are completed by CNC milling. The rapid development of rubber mold manufacturing is mainly due to the innovation of CNC milling technology.
2. Slow walking wire cutting processing
The slow wire cutting process is mainly used to process two-dimensional and three-dimensional regular surface parts, such as various molds, plastic molds and powder metallurgy molds. Among them, the proportion of processing stamping dies is the largest. The processing of many precision holes, such as stamping dies, punching dies, punching fixing plates, dies and unloading plates, is an indispensable key technology for slow wire cutting. In the manufacture of injection molds, common applications include jacks, thimble holes, inclined top holes, clear cavities and sliders. Generally, the processing accuracy is not as high as that of a stamping die.
Slow wire processing is a high-precision processing method. The machining accuracy of high-end machine tools is less than 3 microns, and the surface roughness can reach Ra0.05 microns. At present, automatic wire cutting of 0.02-0.03_ electrode wire can be realized. The actual cutting efficiency can reach about 200mm_2/min.
3. Grinding machine processing
A grinder is a device for finishing the surface of a part,
Small surface grinders are mainly used to process small mold parts, such as precision inserts, precision molds, sliders, etc., and large water grinders are often used for processing large templates. At present, the high-speed movement of the grinding wheel and the worktable has become a common trend. Due to the use of advanced functional components such as linear guides, linear motors, and hydrostatic screws, the speed of the grinding wheel has been greatly improved, and the grinding wheel dressing technology has also been continuously improved.
Four, CNC lathe
CNC lathes are also often used in mold workshops. Its processing range covers all gyro components. Due to the high development of numerical control technology, the rotation of complex shapes can be easily realized by programming, and the machine tool can automatically change the tools, which greatly improves the production efficiency. The machining accuracy and manufacturing technology of CNC lathes are improving day by day, and there is even a trend of using lathes for grinding. Commonly used to process round inserts, supports, positioning rings and other parts in molds. It is widely used in pen molds and bottle molds. In fact, the functions of advanced CNC lathes are no longer limited to "cars". It has been expanded into a compound machine tool for milling and milling. A complex, multi-process part can even be processed at once.
From the digital drawing involved in the initial design of the mold to the measurement of the mold processing, the acceptance measurement of the mold and the measurement of the later mold repair, high-precision measurement equipment plays an important role.
6. Quick clamping positioning system and automation
Mold parts usually require various processes to manufacture. In this process, parts are constantly clamped and corrected, which requires a lot of time. The machine tools are also idle, and the processing capacity of expensive equipment is not fully utilized. With the increasing competition in the manufacturing industry. The shortening of production cycle is a trend. Foreign fixture manufacturers have adopted a stable and accurate benchmark system to achieve a unified benchmark exchange for milling, rolling, measurement, and EDM. The machine tool can quickly complete the installation and calibration of the electrode in one minute. The accuracy of repeated positioning is within 3μm, which reduces the setting time and greatly improves the actual running time of the machine tool. This has proven to be a necessary condition for modern production.