3, performance characteristics (1). It can achieve precise control of the striking energy. By precisely controlling the closing time of the striking valve, the programmable hammer not only ensures the energy required for the forging, but also does not generate additional impact kinetic energy, so the life of some key components such as the hammer, the hammer and the upper and lower molds is greatly improved. (2). The return speed is very fast. Since the lower chamber of the main cylinder always passes the accumulator, once the upper chamber is relieved, the hammer can be lifted quickly, so the contact time of the mold is short. This performance combined with the precise control of energy can increase the service life of the forging die by more than one time. (3). High precision for forging: Since the guide rail adopts an "X"-shaped structure, the gap of the guide rail can be adjusted very small, and the forged piece produced is highly accurate. (4). High material utilization rate Since the energy can be controlled, the precision of the blank is very high, the forgings of the forged parts are relatively uniform, and because the forging precision is high, the upper and lower molds do not have a wrong mold phenomenon, so the material utilization rate is high, which lays a foundation for less cutting. (5). Low noise Since the product is a combat energy programmable device, a program is programmed to make the forged piece, but not much energy is left, so the noise is small. The operator of the traditional forging hammer relies on the sound of the mold to judge whether the forging is made, sometimes the judgment is not allowed, and it is accustomed to play a few more times, which is actually redundant. (6). No collision phenomenon By accurately calculating and designing the size of the orifice and the orifice in the hydraulic system, the hammer head is cushioned to the top, which is smooth and has no roofing phenomenon. (7). Low vibration Because the product can be controlled by the impact energy, no excess energy is generated, and the filter body is equipped with German brand technology to produce the brand-name vibration isolator, which has no influence on the surrounding machine tools and residential areas. (8). Environmental protection: Because the product has small impact noise, shock absorber and low vibration during the impact process, it is an environmentally friendly product. (9). Forging quality is relatively stable Thanks to the control of the program controller, the forging process of various forgings can be stored in the program and can be transferred up and used as needed. Therefore, the same forging can obtain consistent strike energy and number of strikes, avoiding the diversity of manual operations. Therefore, the quality of forgings is relatively stable. Fourth, manual full hydraulic die forging hammer 1, the principle: The basic principle of manual full hydraulic die forging hammer is: using oil pump-accumulator drive, through a manual slide valve to act as a pilot valve to control four large-diameter cartridge valves to achieve lifting hammer, suspension hammer, slow drop, Strike and other actions. 2. Advantages and disadvantages compared with programmable hammers: advantage: (1). The operating mechanism can be operated manually or pedaled. The energy is realized by the operator controlling the stroke of the hammer, and the operation is relatively flexible. (2). The structure is simple and easy to maintain. (1). Energy can not be precisely controlled, it is difficult to achieve precision forging; (2). Because the oil pressure is smaller than the programmable hammer, the stroke is longer, the striking frequency is smaller, and the production efficiency is lower. Chevron Conveyor Belt,Patterned Conveyor Belts,Chevron Pattern Conveyor Belt Hanbang Rubber Belt Co., Ltd. , http://www.nbconveyorbelt.com
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Development and Innovation of Modern Forging Hammer Technology (3)