Stroke length depends on the length of job. The base is rigidly built and is cast integral with column. When a keyway is cut at the middle of the shaft, holes are drilled at both ends of the keyway. For the woodworking tool, see Wood shaper. From Wikipedia, the free encyclopedia.
Ppt of Shaper
Angle covered by the crank is more in cutting stroke. Less time is required to setting the job. Documents Similar To Ppt of Shaper. Set the work piece in the vise with parallel blocks at the bottom. The height of the table can be adjusted to suit this workpiece, and the table can traverse sideways underneath the reciprocating tool, which is mounted on the ram.
The Shaping Machine
The table may be supported at the outer end. The ram is adjustable for stroke and, due to the geometry of the linkage, it moves faster on the return non-cutting stroke than on the forward, cutting stroke. Machine is similar to a Slotter.
Operations Performed in Shaping Machine Education Discussion
Shaper machine is used for generating flat surfaces. Stroke length can be adjusted to a value less than maximum. For other uses, see Shaper disambiguation. By changing the length of crank, ram stroke can be changed. The table is not moved vertically for this purpose.
The top of the bed and the front face of the vertical column are accurately to provide guide ways for the saddle and ram. The ram slides back and forth above the work. This type of machine permits machining of wide work pieces. It is use for small size and light work piece.
Clapper Box Clapper box helps to avoid damage to machined surface during the return stroke of tool. Tool feed is given after completing one stroke. More than one tool can used simultaneously. Internal keyways are cut inside the holes of gears and pulleys.
Cutting stroke is slower than the idle return stroke. The snout bar is directly fitted on the the clapper block. Table reciprocates Used for larger sizes of jobs Less accurate than shaper. Initially a round nose tool is used and then a square nose tool is used to finish the operation.
Apart from machining horizontal, vertical and vertical flat surfaces, the shaping machine can do some special machining operations. Shaping Machine Uploaded by katakamharish. Operations Performed in Shaping Machine Different types of operations are performed in a shaping machine. The workpiece mounts on a rigid, harp sheet music pdf box-shaped table in front of the machine. They are broadly classified as.
Machining dove tail groove. More time is required to setting the job.
Ppt of Shaper
Leave a Reply Cancel reply Your email address will not be published. In other projects Wikimedia Commons. The length of the stroke is also large. Machining external keyways refers to the cutting of long slots along the length of cylindrical rods.
Pit type planer is preferred for very large work, where the weight of the work piece and the tool required table would make reciprocating movement difficult. Machine and metalworking tools. The feed is given to the tool by rotating the downfeed screw of the vertical slide. The most common use is to machine straight, flat surfaces, but with ingenuity and some accessories a wide range of work can be done. Related Posts From Education Discussion.
This adjustability, coupled with the use of specialized cutters and toolholders, enable the operator to cut internal and external gear tooth. Horizontal surfaces are machined by moving the work mounted on the machine table at a cross direction with respect to the ram movement. In a standard shaper, cutting of material takes place during the forward stroke of the ram the backward stroke remains idle. Machining Angular Surfaces If the surface to be machined is neither horizontal nor perpendicular, the surface is called inclined surface.
The work piece is rigidly held in a vice or clamped directly on the table. This arrangement enables the tool to lift automatically during the return stroke.
Vertical shapers are generally fitted with a rotary table to enable curved surfaces to be machined same idea as in helical planing. The ram reciprocates and thus cutting tool held in tool holder moves forwards and backwards over the work piece. The clapper box can be set vertical or slightly inclined towards the uncut surface. Tool should be clamped properly with adequate support.
It is also provides vertical and angular feed movement of the tool and allow tool to lift automatically to provide relief during idle stroke. Then, the groove is further machined with a form tool conforming the shape of the teeth. Machining the inclined angular surfaces can be done in several ways. At its bottoms it carries the cutting tool.
This is the common type of slotter used for general production work. The rotary table is a circular table mounted on the top of the cross-slide.
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