High-speed precision presses play an important role in the production process. High-Speed precision stamping is a high technology in the field of stamping. In all kinds of electromechanical and home appliance manufacturing enterprises, if their products reach a moderate economic production scale for mass production, the reasonable application of fine stamping technology can obtain good technical-economic and occupational safety benefits. High-speed precision stamping technology involves many fields such as machinery, electronics, materials, optics, computer, precision inspection, information network and management technology, and is a multidisciplinary system engineering.
The mold materials required for different products are also different. Suitable mold materials should be selected according to the product characteristics, such as mold shank, upper cover plate and upper male clamp, stripper plate, lower template, pad and base plate.
After choosing the material, use the milling machine to do preliminary machining on the plane and side. Usually you need to use the male clamp, stripper plate, lower template and pad, bottom plate, upper cover plate and top material plate.
It is necessary to use the grinder to process the plane and hit the right angle of the four corners. Grind the plane of the male clamping plate, stripping plate, lower template and pad and then hit the right angle, and then grind the plane of the bottom plate and the top cover plate.
Place the mold plate that has been ground and right-angled after fine processing on the scribing table, and scribe it with a scribing height ruler according to the mold making drawings, and finally, the scribed mold plate will be punctured, drilled and tapped.
The plate of the lower template and the module that needs heat treatment to improve the hardness will be quenched at high temperature, tempered, tempered and annealed, and then further refined, the plate will be ground flat and played at right angles, and then processed by wire cutting.
Choose mold frame or matching guide pillar and guide bush to complete the mold assembly, and install the assembled mold on the press machine for debugging stamping, and finally measure the punch out to confirm whether it meets the product requirements and complete the whole stamping process.
Before starting the work, the operator should check and organize the press and work site: check whether the precision terminal punching die is clean; check the fastening of the die and the fixing on the press; check the material thickness and surface cleanliness; check the press lubrication and prepare the scrap box, and put the precision stamping parts and precision terminal blanks in the designated position for easy access.
When working, always observe the safety regulations. Such as when stamping, always carry out all the safety systems stipulated; wear overalls and work cap when working, work carefully, always stick to the post and concentrate your thoughts to prevent personal accidents.
Operate strictly according to the precision stamping parts and precision terminal process procedures, and work with concentrated mind. Precision stamping parts, precision terminal first piece must be checked and qualified before production, stamping process, should always be self-inspection and special inspection, and the host can not put double material, timely clean-up of waste. When a fault occurs, it should stop immediately, report to the relevant department in time and restored to normal before starting the production. 4. After the work is finished, first of all, turn off the power switch. Wipe the press and precision stamping parts, precision terminal punching die, apply lubricant to the working parts of the die, and sort out the parts, scrap and waste.
High-speed precision stamping technology is an advanced manufacturing technology for modern stamping production, which integrates high-speed precision press technology, high precision variable stamping die technology, high-quality product material technology, intelligent control technology and green as an integrated high-tech. The application of High-speed Precision Press technology for mass production of products has the characteristics of high production efficiency, high quality, high consistency, energy saving, labor saving, cost reduction and safe production, etc. Therefore, it has been paid more and more attention by all industrial production sectors of national economy. At present, modern advanced manufacturing technology is the theme of research and development in the world, especially in today's highly developed market economy, it occupies a very important position.
High-speed precision stamping die technology is mainly based on the use of plate processing products, and consists of three basic elements: high-speed press equipment, precision stamping die and high-quality coil material, and is connected with the uncoiling device, leveling device, feeding device, material lubrication device, discharging device, managing device and receiving device of the automation peripheral equipment, and is a kind of stamping automation production line which is combined according to the stamping process.
Stamping automation can not only greatly increase labor productivity, improve labor conditions and reduce costs, but also effectively ensure personal safety in stamping production and fundamentally change the face of stamping production, so it is widely used in the fields of electronics, communications, automobiles, machinery, military industry, light industry, electrical appliances, instruments and meters, medical equipment, automation equipment and home appliances manufacturing. It is also being used more and more widely in the manufacturing fields of rail transportation, aerospace, new energy and other products.
With the rapid development of the technology of products such as electronic communication, electrical appliances, automobiles and home appliances, the demand for precision stamping parts is getting bigger and bigger, and the technical requirements are getting higher and higher, and the applications are getting wider and wider, so in mass production and super mass production, ordinary presses can no longer meet the production and technical requirements. Adopting high-speed precision presses for high speed, automation and continuous stamping is an effective way to improve stamping productivity. Since the number of ram strokes per minute of high-speed precision presses is more than 5 times higher than that of ordinary presses with similar tonnage, high-speed precision presses not only have high precision and good surface quality of stamped parts, but also have long die life.
In recent years, stamping technology has been developing in the direction of high speed, precision and intelligence, which has promoted the momentum of development of high speed presses, and therefore many high speed precision presses and super high speed precision presses have emerged. The number of strokes can reach 2,000 times/minute, 3,000 times/minute and 4,000 times/minute respectively. Under load, it can also reach the extra precision requirement in its standard. This marks the development of high-speed precision press technology to the ultra-high-speed ultra-precision technology stage.
Some foreign companies of small tonnage high-speed precision presses are divided into four speed levels according to the number of slider strokes: normal speed ≦ 250 times / min, 250 ~ 400 times / min, high-speed 400 ~ 1,000 times / min, ultra-high-speed ≧ 1,000 times / min. Large tonnage high-speed precision presses slide stroke number is relatively low, such as 300 tons of large high-speed precision presses, the slide stroke number range is only about 160 ~ 400 times / min, 100 tons of fins special high-speed precision presses, the slide stroke number range is generally about 150 ~ 250 times / min.
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