The products suitable for automatic assembly line are usually:
Bearing, gear transmission, cigarette, computer hard disk, computer optical disk drive, electrical switch, relay, light bulb, lock, pen, printed circuit board, small motor, micro pump, food packaging, etc.
The structure and principle of automatic assembly line is very similar to that of automatic machining production line and manual assembly line, except that the operators on manual assembly line are workers, the operators on automatic mechanical processing production line are all kinds of workstations or automatic machine tools, while in automatic assembly line, various automatic assembly machines are used to complete various kinds of assembly workers Art.
In order to simplify the structure, the automatic loading and unloading manipulator is usually directly designed as a part of the special machine in the design of automatic special machine, and the normal loading and unloading operation only needs two directions of movement.
Therefore, this manipulator uses the matching linear guide mechanism and cylinder to form a linear motion system in two directions, up and down, horizontal. The end of the upper and lower motion arm is assumed to be suction cup or pneumatic finger.
For some simple process operations, the special machine does not need to remove the workpiece from the conveying line, but can be directly carried out in the conveying process of the workpiece on the conveying line, such as spray code marking and barcode labeling operation, which greatly simplifies the structure of the special machine; some processes need to make the workpiece in the static state, so it is necessary to stop the workpiece on the conveying line, And then go straight ahead.
However, some processes not only require the workpiece to be carried out in a static state, but also need a certain precision, such as laser marking operation. At this time, it is not enough to stop the workpiece on the conveyor line, because the conveyor line is usually continuous operation, and the workpiece will still produce slight shaking under the action of the conveyor line. Therefore, it is necessary to design a pneumatic mechanism to lift the workpiece upward for a certain distance After the workpiece is separated from the conveyor belt or conveyor chain plate, the process operation is carried out, and after the operation is completed, the workpiece is put down on the conveyor belt or conveyor chain plate to continue conveying.
In addition to the typical straight line form, in order to minimize the use of space, sometimes a circular form can be used, as shown in Figure 2. Because the flat top chain conveyor line can turn freely, it is very suitable as the conveying system of this kind of circular production line.