working principle of Shaper machine

Principle of operation working principle of Shaper machine It is a reciprocating machine tool used for flat machining working principle of Shaper machine. single point cutting tool is used and placed on the ram. Ram performs horizontally. The work item is placed on the table. Metal is removed while moving forward. Feed is supplied at the end of the cutting stroke. As the ram reacts against the workpiece, metal is cut and removed by the tool. Format Types working principle of Shaper machine The forms are classified as follows: By Type of Driving Mechanism a) Cracked and Slotted Link Drive b) White Worth Mechanism c) Hydraulic Drive According to the travel of ram a) Horizontal pattern b) Vertical pattern According to table type a) Fixed or simple shaper b) Universal shaper By type of cutting a) Push cut shaper b) Draw cut shaper. Standard Format: Area: Foundation: It is made of CI and bears the entire load. Column: It is a hollow box and made of CI. It is placed on the base. It has a quick return mechanism for RAM and navigation modes. The top of the line ram is fixed by dovetail guide systems Cross Rail: It is mounted on the column. Horizontal guide ways are provided and are called saddles The table slides over the saddle. The cross rail raising screw is provided with vertical movement desk: It is a rectangular and plain CI block. working principle of Shaper machine This is a slide on guiding methods. It is supported by an adjustable table support and has T slots for clamping operation The table is moved horizontally by rotating the cross feed screw. The table is rotated vertically by turning the elevating screw to beat: It holds the tool head at the front end. Rama guides the path of the dove’s tail at the top of the pillar. It is associated with quick return mechanism. The stroke length of the ram is adjusted by rotating the hand wheel on the ram. Tool head: It consists of equipment. It has a vertical slide and a revolving base. The tool can be rotated in the vertical direction by turning the feed screw downwards at the required angle. Can give vertical and angular feed to tool head. Apron is fitted and can be tilted as per requirement The shield has a clapper box and the tool block is inside it. Tools module contains tools. During the cutting stroke, the tool block fits firmly Inside the clapper box. During the return stroke, the tool block moves out of the clapper box. It is Prevents tool rubbing at work. Format Specifications: Maximum stroke length Maximum horizontal movement of table Maximum vertical speed of table Motor power Type of driving mechanism Ratio of cutting stroke time to go back stroke time Type of pattern – plain or universal Net weight of shaper Floor space Quick Withdrawal Mechanism: Forward cutting stroke cuts into the metal workpiece. working principle of Shaper machine During return stroke, no metal is cut, it can called passive stroke. Idle stroke time is essential to reduce overall machining time to reduce For this the return stroke can made faster than the cutting stroke and can done by A mechanism called the quick withdrawal mechanism. A quick return of RAM can achieved through the following quick return mechanism. Mechanism Crank and slotted linkage mechanism Whitworth mechanism Hydraulic mechanism Crank and slotted link mechanism:   An electric motor can used to drive the driving pinion at constant speed. The bull rotates the gear at a constant speed. Pull gear can a large gear and can mounted inside the column. working principle of Shaper machine A slide can also attached Diameter on face of bull gear. Pull gear sliding block can slide on the pull gear slide. Its position can adjusted radially by rotating the stroke adjustment screw. This can done by rotating the bevel gear with a handle from the outside. A crank pin can mounted on the pull gear sliding block. The rocker arm sliding block can mounted independently on the crank pin. The end can pivoted under a slotted link or rocker arm. The upper end of the rocker arm can shaped like a fork. It can independently connected to the RAM module by a pin. working principle of Shaper machine Perforated links have a slot along the length. The rocker arm sliding block fits into this slot. When the pull gear rotates, the crank pin also rotates. The rocker arm sliding block rotates in the crank pin circle. At this point this sliding block slides up and down in the slot of the slotted link (rocker arm). It gives swinging motion to the rocker arm. It responds to RAM. When the slotted connector is in the PA position, the RAM is in the back position (at the end of the page). When the link is in BB, the RAM is in the forward position. PA and PB are tangent to the crank pin circle. The forward cutting stroke occurs when the crank pin angle rotates through C1KC2. working principle of Shaper machine The return stroke occurs when the crank pin angle rotates through C2LC1. Angle C1KC2 is greater than angle C2LC1. Bull gear has the same speed. The stroke length is same during forward stroke and return stroke. So the return stroke takes less time. Cutting speed is not uniform throughout the stroke length. This is the minimum working principle of Shaper machine It is the maximum in the middle Paralysis. To correct the stroke condition: The clamping manage on the ram can loosened first. working principle of Shaper machine There is a screw inside the ram The stroking position adjustment knob should can rotated. Now the ram moves forward or backward. After adjusting the RAM status, The clamping handle can tightened Whitworth quick withdrawal mechanism An electric motor rotates the driving gear at constant speed and this gear rotates the pull gear at constant speed. 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