Machine Shop DCS PDF

# Workshop Layout and Machine Descriptions ## Workshop Layout The following is a description of the workshop layout: * **E:** Gate * **E1 & E2:** Entry Point * **CT:** Computer Table * **A & A2:** Almirah * **B & B2:** Teacher tables * **T, T1, T2, T3 & T4:** Student Tables * **1:** Lathe Machine...

# Workshop Layout and Machine Descriptions ## Workshop Layout The following is a description of the workshop layout: * **E:** Gate * **E1 & E2:** Entry Point * **CT:** Computer Table * **A & A2:** Almirah * **B & B2:** Teacher tables * **T, T1, T2, T3 & T4:** Student Tables * **1:** Lathe Machine * **2:** Milling Machine * **3:** Shaper Machine * **4:** Slating Machine * **5:** Surface Grinder * **6:** Power Hacksaw * **7 & 8:** Drill Machine * **9:** Power Grinder * **10 & 11:** Unknown * **12 & 13:** Unknown ## Workshop Equipment List | Quantity No. | Quantity Name | |---|---| |1, 2, 3, 4 & 5 | Lathe machine | |6 | Milling machine | |7 & 8 | Shaper machine | |9 | Slating machine | |10 | Surface grinder | |11 | Power hacksaw | |12 | Drill machine | |13 | Power grinder | |T | Student table | |T2 & T3 | Work table | |B & B2 | Teacher Table | |A, and A2 | Almirah | |CT | Computer table | |E1 & E2 | Entry Point | |G1 & G2 | Gate | ## Lathe Machine **Description:** The lathe machine is used to remove metal pieces to give a desired shape and size. It holds the workpiece and performs various metal removal operations. **Work Principle:** The lathe machine holds a workpiece between two rigid supports called the center or in the chuck on the faceplate. It rotates the cutting tools parallel or at right angles to the axis of the workpiece. **List of Operations Performed:** * Turning * Threading * Facing * Drilling * Grooving * Boring and Internal * Taper Turning * Threading knurling * Cutting off **Main Parts:** * **Head Stock:** Contains the spindle and chuck * **Tail Stock:** Provides support to the workpiece * **Bed:** Supports the lathe machine * **Tool Post:** Holds the cutting tools * **Carriage:** Moves the tool post along the bed * **Compound Rest:** Used to angle the tool * **Cross Slide:** Used to move the tool transversely * **Leg:** Supports the lathe machine ## Drill Machine **Description:** The drill machine is used to produce circular holes by removing metal from the workpiece using a cutting tool called a twist drill. Cutting fluids facilitate the process. **Working Principle:** The rotating edge of the drill enters the workpiece and the metal removal occurs through shearing and extrusion. **List of Operations Performed:** * Drilling * Facing * Reaming * Boring * Tapping * Spoting **Main Parts:** * **Base:** Supports the drill machine * **Table:** Supports the workpiece * **Spindle:** Holds the drill * **Hand Feed:** Allows the drill to be moved manually * **Machine Vice:** Secures the workpiece to the table * **Drill Head:** Contains the drill bit ## Shaper Machine **Description:** The shaper machine is used to create flat plane surfaces on workpieces, including horizontal, vertical, and angular shapes. It can also produce complex contours. **Working Principle:** The workpiece is securely held in a machine vice while the ram reciprocates back and forth. The tool is mounted on the ram and only cuts during the forward stroke. **List of Operations Performed:** * Machining Horizontal Surfaces * Machining Vertical Surfaces * Machining Angular Surfaces * Slot Cutting * Keyway Cutting **Main Parts:** * **Base:** Supports the shaper machine * **Column:** Supports the ram and tool slide * **Ram:** Holds the tool slide * **Tool Slide:** Slides along the ram and holds the cutting tool * **Clapper Box:** Allows the tool head to return quickly to its starting position * **Tool Post:** Holds the cutting tool * **Tool Head:** Contains the cutting tool * **Cross Rail:** Moves the table horizontally and vertically * **Elevating Screw:** Adjusts the height of the table ## Horizontal Milling Machine **Description:** The horizontal milling machine removes metal from the workpiece by feeding the material against a multi-toothed cutter. **Working Principle:** The workpiece is held on a table that moves in various directions. The cutter spindle rotates at high speed to remove material. **List of Operations Performed:** * Face milling * Gear Cutting * Slot or Slab Milling * Profile Milling * Slitting * Angular Milling **Main Parts:** * **Base:** Supports the milling machine * **Column:** Supports the overarm, spindle, and arbor * **Knee:** Adjusts the vertical position of the table * **Saddle:** Slides along the knee and supports the table * **Table:** Holds the workpiece * **Overarm:** Carries the spindle * **Spindle:** Holds the cutter * **Arbor:** Supports the cutter * **Arbor Support:** Supports the arbor * **Elevating Screw:** Allows the knee to be raised and lowered ## Operations Performed On A Lathe Machine **Material Used:** Mild steel of 25mm x 100mm **1. Plain Turning:** Removes excess material from the cylindrical surface of a workpiece. **2. Step Turning:** Creates steps of different diameters on a workpiece. **3. Taper turning:** Creates a conical shape on a workpiece by gradually reducing the diameter. **4. Facing:** Creates a flat end on a workpiece by removing material. **5. Knurling:** Embosses a diamond or straight-line pattern into the workpiece. **6. Grooving:** Creates grooves of reduced diameter on a workpiece. **7. Drilling:** Creates a cylindrical hole in a workpiece.