+ Talking about the application of motors in the electronics manufacturing industry

Speaking of electronics manufacturing, we must first mention electronic components. Electronic components generally refer to electronic components with certain functions. Common electronic components include: resistive, capacitive, inductive devices, electronic diodes, triodes, and integrated circuits composed of the above devices. Electronic components are the basic materials for manufacturing and producing electronic products.

The miniaturization of electronic components is not limited to itself, but can also further reduce the size of its integrated circuits. Taking TDK multilayer ceramic chip capacitors as an example, its size is only 1/100 of the previous products, and high-density integration of circuits can be achieved. This trend will have two effects on the electronics processing industry:

1. Electronic components are smaller, thinner and more easily damaged. On the premise of ensuring output and comprehensive production capacity, it makes the transfer of processing techniques and techniques more difficult. For example, end effectors such as clamping, suction, pushing, and pressing are also developing in the direction of small size, light weight, simple structure, and high integration;

2. The denser the circuit, the more difficult it is to align, patch, connect, dispense, and solder. In the production process, the single-line displacement distance of the processing unit is very small, and the distance between the solder joints of adjacent pins is often less than 1mm. In the motion control program, the motor is almost in the state of frequent start and stop. This poses a severe challenge to the motion state control of the motor. Even in the current environment where the multi-station and multi-batch processing technology is relatively mature, there will still be some bad problems, such as component displacement and pin floating.

Due to the above reasons, miniaturized motor products have been widely used in the electronics manufacturing industry with their own advantages.

One is due to its small size, more compact mechanical structure, and higher equipment integration;

Secondly, the weight is light, and the inertia of the mechanism is small. Inertia is the value of inertia of an object's motion, which is proportional to the mass of the object. Inertia is an important indicator of a motor. In general, the smaller the inertia, the faster the response of the motor to start, accelerate and stop, and the easier it is to control the motion state.

The use of the motor directly reduces the volume and weight of the processing unit of the electronic manufacturing equipment, and further improves the processing performance of the whole machine.

At present, servo motors and stepper motors are widely used in general motion control products. In addition, there are some expensive voice coil motors and linear motors. Commonly used servo motor bases (motor size) are 40, 60 and 80. From the perspective of the body shape, only some end effectors with low space requirements can use 40-base servos, such as scribing or CCD inspection equipment. For devices with compact installation space and high integration, such as wafer sorting and chip mounting mechanisms, more Mini drive motors are required. Optional products are 28 (nema11), 20 (nema8), 14 (nema6) stepper motors.

Although traditional stepper motor products are not as good as servo acceleration in a single machine, they have a wealth of sizes and specifications, and have many options. They will not shake when starting and stopping, and they do not need to be adjusted in motion according to changes in load. These advantages are conducive to the design and selection of equipment manufacturers, simplify motion control programming instructions, and facilitate on-site installation and debugging. Equipped with high-resolution encoder and closed-loop control technology (current loop, position loop, speed loop), which not only continues the advantages of stepper motors without dynamic settings and chattering, but also has the advantages of stepper motors