A large parallel system consists of a series of small independent assemblers. Each manipulator has a lead screw positioning system, and the manipulator has a camera and a device head. Each device head picks up components from several tape feeders and can perform devices for multiple partitions of multiple circuit boards. These boards were replaced on time by machines to adjust their viewing angles. For example, the FCM machine of Philips has 16 device heads, and the mounting speed is 0.0375 seconds per chip. However, for each device head, the mounting speed is about 0.6 seconds per chip, and there is still the possibility of ups and downs.
Because the turntable picks up the components and pastes them together, the pasting speed fluctuates greatly and makes great progress. This kind of high-speed muddler is the most popular in China, which is not only fast, but also very stable in function. For example, the pasting speed of Panasonic's MSH3 machine can reach 0.075 seconds per sheet. However, due to the limitation of mechanical layout, the mounting speed of this machine has reached the limit, and it is impossible to make great progress.
The boom machine has good accuracy and flexibility, and can be used for most parts. High-precision machine is usually of this type, but it is not as fast as compound, turntable and large parallel system. However, the layout of components is increasingly concentrated on active components, such as QFP and BGA array components with leads, and the device accuracy has a crucial impact on high yield. Compound, turntable and large parallel system are usually not suitable for this kind of component device. Movable arm machine can be divided into single-arm type and multi-arm type, and single-arm type is the first multifunctional mounter still in use today. The multi-arm mounter developed on the basis of single-arm mounter can double the working efficiency.
The compound machine is developed from the boom machine, which combines the characteristics of turntable and boom. The movable arm is equipped with a turntable. Because the compound machine can increase the speed by increasing the number of movable arms, it has great flexibility, so its development prospect is promising. For example, Siemens' latest HS50 machine is equipped with four such rotating heads, and the mounting speed can reach 50,000 pieces per hour.
Compound, turntable, large parallel mounter belongs to high-speed device system, and is usually used for small chip components. The turntable machine is also called "chip shooter" because it is usually used to assemble chip resistors and capacitors. Other such machines have the ability to shoot at high speed. Because the accuracy of passive components, "chips" and other lead elements is not high, the assembly of the filming machine can achieve high productivity. Because the layout of the high-speed machine is much messy and the quotation is much higher than that of the ordinary boom machine, this should be taken into account when selecting the equipment.
After the test, the assembly speed of turntable and coincidence machine is relatively high, generally 20 thousand to 50 thousand per hour; The accuracy of the movable arm machine parts is good, and the device speed is 5000 to 20000 yuan per hour, which is cph；; Large parallel mounter has the fastest assembly speed, which can reach 50,000 to100,000 per hour.