The design principle of the hardware parts processing punch press is to convert circular motion into linear motion, the main motor outputs power to drive the flywheel, and the clutch drives the gear, crankshaft (or eccentric gear), connecting The rod and so on run to achieve the linear motion of the slider, and the motion from the main motor to the connecting rod is a circular motion.

There needs to be a transfer point for circular motion and linear motion between the connecting rod and the slider. There are roughly two types of mechanisms in its design, one is spherical and the other is Pin type (cylindrical type), through this mechanism, the circular motion is converted into the linear motion of the slider.

The punch presses the material to plastically deform it to obtain the required shape and precision. Therefore, it must be matched with a set of molds (the upper mold and the lower mold). The material is placed in it, and the pressure is applied by the machine to deform it. The reaction force caused by the force applied to the material during processing is absorbed by the machine body of the punch press.

The punch press for hardware accessories processing is a stamping press. In national production, the stamping process saves materials and energy compared with traditional machining, has high efficiency, does not require high technical requirements for operators, and can make products that cannot be achieved by machining through various mold applications. Its uses are getting wider and wider.

Design hardware accessories must meet product technical performance:

1. The designed hardware accessories must meet the product use and technical performance, and be easy to assemble and repair.

2. The designed hardware accessories must be conducive to improving the utilization rate of metal materials, reducing the variety and specifications of materials, and reducing material consumption as much as possible. Use low-cost materials where possible, and make parts as scrap-free and blank as possible.

3. The designed stamping parts must be simple in shape and reasonable in structure, so as to simplify the mold structure and simplify the number of processes, that is, use the least and simplest stamping process to complete the whole part. Processing, reduce the use of other methods for processing, and facilitate stamping operations, facilitate the organization of mechanized and automated production, and improve labor productivity.

4. For the designed hardware accessories processing parts, under the condition of ensuring normal use, the hardware accessories processing should try to make the dimensional accuracy grade and surface roughness grade requirements lower, and it is beneficial to Exchange of products, reduce waste and ensure stable product quality.

The designed stamping parts should be conducive to the use of existing equipment, process equipment and process flow as much as possible to process them, and to prolong the service life of the die. extend.

Although aluminum alloy die-casting sells well in China, it does not mean that it sells well in foreign countries. Foreign markets have their own special needs and consumption habits different from domestic ones. , which is an indisputable fact. Mold-related experts believe that the main reasons for restricting the development of my country's current die-casting mold industry are:

1. Domestic aluminum alloy die-casting die-casting molds still have many shortcomings in the use of raw materials;

2. The backwardness of technology has greatly hindered the development of my country's die-casting mold industry;

3. The supporting system of my country's aluminum alloy die-casting die-casting mold industry is not perfect. These factors are the bottleneck restricting the development of my country's aluminum alloy die-casting mold industry. Only by breaking through this big bottleneck, increasing R&D efforts, and constantly adjusting the development mode, my country's aluminum die-casting mold industry can occupy a place in the international market.