Ways to improve the speed of placement m

In view of the importance of mounting speed, manufacturers in every possible way to improve the speed of the placement machine, now choose to improve the speed of the placement machine mainly has the following several methods.

(1) Placement machine structure improvement

Select dual track to finish PCB patch on one track, and send board on the other track to reduce PCB delivery time and mounting head standby time;

Multi - head combination skill, now has double - headed and 4 - headed, 6 - headed, 8 - headed structures

The arch frame structure is driven at both ends to avoid the effect of cantilever beam and reduce the mechanical stability time.

Modular multi-unit structure, focusing on unit area mounting speed.

(2) attaching head and suction nozzle skills

Lightning mount head

Multiple suction nozzles - up to 30 suction nozzles per attached head。

Highly reliable and adaptable nozzles can be mounted from 0201 and 01005 elements to 30mm× 30mmqfp elements

Quick change nozzle

(3) Motor drive and linear motor skills

The selection of vague control skills, the movement process is divided into three segments of control, that is, "slow-fast-slow", showing "s" type change, so that the movement becomes both "soft", and fast;

X axis operation adopts the double servo motor drive system with completely synchronous control loop to speed up the movement speed

High positioning accuracy and repeat accuracy, high speed and acceleration, fast and stable (up to 55ms),

A patented linear motor with low working current and high precision control.

(4) quick detection skills

Laser and CCD application cooperation;

Dual camera - chip components and large scale IC are tested separately；

Fast image acquisition and conversion circuit

Advanced image processing and computing software.

(5) feeder skills

The feeding method of intelligent feeder can shorten the replacement time of components and human error.

Non-stop refueling

Double feeder

Large capacity feeder, some mounter can reach 256 8mm feeder capacity

Replaceable car

The device with more materials should be braided and packaged as far as possible

Efficient bulk feeding

(6) optimize placement procedures

Optimization criteria:

● minimum number of nozzle change;

● pick up, patch journey shortest

● long paste machine should also consider each time together to pick up the most

(7) operate the machine in accordance with the safe operation procedures and improve the maintenance level of the equipment

(8) software skills

● various forms of PCB files, directly optimize the generation of patch program files, reduce manual programming

● choose offline programming for small batch of multiple varieties;

● machine fault self-diagnosis system and large production induction system

● intelligent operation system.