There are vertical shapers that are specially designed for machining internal keyways. Large internal and external gears may also be machined by the indexing arrangement of the rotary table. Vertical shapers are very convenient for machining internal surfaces, keyways, slots, or groves. The tool used on a vertical shaper is entirely different from that used on a horizontal shaper. The worktable of a vertical shaper can be given cross, longitudinal, and rotary movement. Vertical shapers may be crank driven, rack driven, screw-driven, or hydraulic power-driven. In some of the vertical machines provision is made to allow adjustment of the ram to an angle of about 10 degrees from the vertical position. In a vertical shaper, the ram holding the tool reciprocates in a vertical axis. Horizontal shapers are mainly used to produce flat surfaces. In a horizontal shaper, the ram holding the tool reciprocates in a horizontal axis. According to the position and travel of the ram: Hydraulic shapers are high power machines and are used for heavy-duty work.Ģ. As the oil pushes the piston, the ram reciprocates. Oil at high pressure is pumped to the cylinder of the hydraulic system. The ram of a hydraulic shaper is connected to a piston. According to the reciprocating motion to the ram: When an inclined surface is machined, the vertical slide of the tool head is swiveled to the required angle and the feed is given to the tool by rotating the down feed handwheel.ġ.
In a shaping machine, a flat horizontal surface is machined by moving the work mounted on the table in a cross direction to the tool movement. It is possible by the ‘Quick return mechanism’. Though the distances of ram movement during the forward and return stroke remain the same, the time taken by the return stroke is less as it is faster.But during the return stroke, the ram moves at a faster speed.
The ram moves at a slow speed during the forward stroke. On the return stroke, metal is not removed. When the ram moves horizontally in the forward direction, the tool removes metal from the work. A single point cutting tool is attached to the ram. The work is held firmly on the table and the ram is allowed to reciprocate over it.A shaping machine is a reciprocating type of machine tool. Shaping is a process of machining a flat surface which may be horizontal, vertical, inclined, concave, or convex using a reciprocating single point tool.
The drive type (crank, gear, or hydraulic type).The following represents the specification of a shaper machine: Types of shaping machines based on the cutting stroke: Various types of shaping machines are classified into four such motion types (a driving mechanism), ram travel, table design, and the type of cutting stroke: Types of shaping machines based on driving mechanism: Read: Different Types of Shaping machine and their classifications Cutting tools might break during the cutting.The process is slow due to the straight-line forward and backward movement for a stroke to be completed.The following stated below are the disadvantages of a shaper machine: A bench vise is used to hold the workpiece.ĭespite the great advantages of a shaper machine, some limitations still occur.The setup is fast and easy, making the change from one job to another easier.The cutting stroke has a definite stopping point.Workpiece can be easily held on a shaper machine.The following represent the benefits of a shaper machine: Gear teeth and internal splines can be produced with a shaper machine.Īdvantages and disadvantages of shaping machine: Advantages.Straight and flat surfaces can also be created.It is used on applications on parts that needed a dovetail slide.A Shaper machine is used to generate smooth rough surfaces.The following stated below are the areas where the shaping machine is used:
0 kommentar(er)
