The cell phone flip cover test machine adopts LCD touch man-machine interface, the oversized interface is intuitive and generous; the control part adopts PLC, reliable performance; due to the use of stepping motor drive, the angle is accurate and convenient. The power supply system is rectified and set up, which greatly improves the service life and reliability of the circuit part of the machine. The cell phone flip cover life testing machine can realistically simulate the action of the cell phone in use due to the adoption of double motors driven separately in a single station. This machine can realize four cell phone flip cover life test at the same time, and do not interfere with each other, in the program also reflects the humanization of the design style, so that the operator, once you learn that will be. With the increase in the number of domestic cell phone users, cell phone manufacturers need more and more large-scale procurement of equipment, so that a large number of cell phone flip-top experimental machine manufacturers have emerged in the country. Because of this equipment on the control aspects and mechanical design requirements are relatively simple, so want to produce this equipment threshold is relatively low, resulting in the industry price competition is very fierce, the price is getting lower and lower. Moreover, this industry not only encounters the problem of price competition, but at the same time, the performance requirements of the equipment are getting higher and higher, especially the low-frequency vibration and noise of the stepping motors, which directly affects the customer's decision to purchase the equipment. By cooperating with the manufacturer of cell phone flip-top tester, Sansha stepping motor solved the problems of low-frequency vibration, noise and heat, which made their equipment more competitive in the market. Compared with the stepper motor they purchased before, the noise was reduced by 80%, the vibration was reduced by 30%, and the heat generation was reduced by 50%. The price is closer to the previous one, which maximizes customer satisfaction.
2. The way to solve the problem of low-frequency *** vibration
1: with servo motors Effective Cost is too high
2: with stepper motors plus gearboxes Effective General Cost is also relatively high
4: with the YAMAISHA stepping motors Effective Cost is low
3. Stepping motors and drives product features
YAMAISHA motors are made with the use of Permanent magnet silicon steel sheet and Japan NSK original bearing manufacturing, compared with other brands of stepping motor with high positioning accuracy, high output torque, high response frequency, low operating noise, good dynamic characteristics and other features and advantages. YAMASHE drive adopts the latest 32-bit DSP processor, including MD-2522, MD-2545, 2778 and other products, this series of stepping drive products to achieve a major revolutionary technological breakthroughs, to reach the international first-class level, to enhance the stepping system grade:
Low-frequency vibration is relatively low
Driver internal PID current control algorithms can reduce the low frequency vibration problem of the stepping motor. motor's low-frequency vibration problem.
Mid-speed anti-*** vibration technology
Because of the vector anti-*** vibration algorithm, the motor will not lose steps or oscillate at mid-speed anymore
High-speed torque enhancement technology
High-speed torque enhancement of more than 30%, with loaded operation up to more than 1500RPM.
Internal interpolation technology
Even if the control command is a low-frequency signal for a whole half-step and low interpolation, the internal operation is still based on high interpolation.
Low Noise Technology
The stepping motor operation noise is greatly reduced up to 70%;
Motor Low Temperature Technology
The motor temperature is greatly reduced by 10-20 degrees compared to the general driver, preventing the motor from aging and torque drop;
Driver Cooling Technology
The temperature of the driver is also very low, which increases the reliability and reduces the temperature inside the electronic control box.
Encoder control parameter self-tuning technology
Motor parameter identification and control parameter configuration by adjusting the encoder gear.
Product features:
Maximum supply voltage 75VDC each type of drive, maximum output peak phase current 7.8A;
Adopt magnetic chain vector anti-*** vibration algorithm and multiple harmonic compensation algorithms;
Motor parameter identification and control parameter auto-tuning;
Built-in micro-step subdivision algorithms to realize the low subdivision control instruction
Built-in micro-step interpolation algorithm to realize low-interpolation control instruction and high-interpolation operation effect;
Accepts differential and single-ended pulse/direction instruction;
Provides 8 regular current settings, and if other current values are needed, the user can set up the current arbitrarily within the range of the maximum operating current.
Provide 8 regular micro-step subdivision set value, the maximum subdivision is 256, if you need other micro-step subdivision, you can choose a different type of stepping motor driver;
High reliability, the use of optical coupling isolation technology and over-voltage, over-current, phase failure and other protection functions;
4. Market Feedback
The product was introduced to the market 4 years, not only in the cell phone flip life The product has been widely used not only in the mobile phone flip cover life industry, but also in other low-frequency **** vibration of the higher requirements of the test equipment, experimental equipment, medical equipment and other industries to get a high market share.