The servo position control module of the sawing machine system adopts position control combined with sampling interpolation and foresight control (the specific control is omitted), and decides to close the position of the feed cylinder so that the target position is reached when the feed cylinder is stopped. Due to the electromagnetic mechanical lag and motion inertia, it is almost impossible to control the feeding slide table to move by 0.1mm by “on” and “off”. In order to ensure the minimum feeding length and feeding accuracy, the rear clamp moves the feeding slide back to the LK position, and then moves forward to the predicted position LT to close the feeding solenoid valve. When the feed cylinder motion stops, the rear tongs clamp.
The main components of the sawing machine are bottom seat; bed, column; saw beam and transmission mechanism; guide device; workpiece clamping; tensioning device; feeding rack; hydraulic drive system; electrical control system; lubrication and cooling system;
Circular sawing machine Circular sawing machines are also called circular sawing machines, which are divided into fully automatic and semi-automatic. The circular saw blade performs a rotating cutting motion, and at the same time performs a feed motion with the saw box. The circular sawing machine is divided into horizontal (horizontal feed), vertical (vertical feed) and pendulum (swing feed around a point) according to the feeding direction of the saw blade. In addition, there are various special circular sawing machines, such as moving head sawing machines for cutting large casting feeders, and saw-drilling combined machine tools for rail sawing and drilling.
Band Saw The circular saw belt is tensioned on two saw wheels, and the saw belt drives the saw belt to cut. Band sawing machines are mainly vertical and horizontal. The saw frame of a vertical band sawing machine is set vertically. The workpiece moves during cutting to cut the curved contours of sheets and formed parts. The saw belt can also be replaced with a file chain or abrasive belt for file repair or polishing. The saw frame of the horizontal band sawing machine is arranged horizontally or obliquely, and feeds in the vertical direction or the direction of swinging around a point. The saw band is generally twisted by 40 ° to keep the saw teeth perpendicular to the workpiece. The horizontal type is further divided into scissors, double-column, and single-column band sawing machines; manual type (economical manual feeding and manual cutting of materials) and automatic type according to the use situation; manual type ( Semi-automatic manual feeding) Automatic type (automatic feeding and automatic cutting)
Bow saw The saw bow equipped with the saw blade reciprocates and feeds by swinging the saw frame around a point. The machine tool has a simple structure, small size, but low efficiency. There are two types of motion trajectories of bow saws: straight and arc. When the arc moves, the saw bow swings a small angle around a point. Each saw tooth has a large cutting amount, easy chip removal, and high efficiency. Most new bow saws use this method.