Skip to main content

DIFFERENTIATE BETWEEN CAPSTAN AND TURRET LATHE

DIFFERENTIATE BETWEEN CAPSTAN AND TURRET LATHE


TURRET LATHE
CAPSTAN LATHE
1. Turret tool head is directly fitted on the saddle and both of them appear like one unit.
1. Turret head is mounted on a slide called ram which is mounted on the saddle
2. Saddle is moved to provide feed to the tool.
2. To provide feed to the tool, saddle is locked at a particular point and the ram is moved.
3. It is difficult to move the saddle for feed.
3. It is easy to move the ram for feed.
4. As the saddle can be moved along the entire length of the bed, it is suitable for longer workpieces.
4. As the movement of the ram is limited, it is suitable for machining shorter workpieces only.
5. To index the turret tool head, a clamping lever is released and the turret is rotated manually.
5. When the handwheel for the ram is reversed, the turret tool head is indexed automatically.
6. Limit dogs are used to control the distance of tool movement.
6. To control the distance of tool movement, feed stop screws are provided at the rear side of the turret.
7. Some turret lathes have the facility of moving the turret at right angles to the lathe axis.
7. No such facility.
8. Heavy 
8. Lighter in construction.
9. Suitable for machining heavy and large workpieces.
9. Only small and light workpieces are machined.
10. Machining can be done by providing more depth of cut and feed.
10. Only limited amount of feed and depth of cut are provided for machining.




REFERRED BY : - ER. DINESH JAIN, A.P.,MECHANICAL ENGG. DEPTT., SGI
Labels:

Comments

Post a Comment

Popular posts from this blog

Boiler Mounting - Water Level Indicator

WATER LEVEL INDICATOR Function:   It is indicates the water level inside the boiler to an observer. Working:  The water of the boiler comes into the glass tube through the lower tube and the steam through the upper tube. The water then stands in the glass tube at the same level as in the boiler. Two cocks are used to control the passage of between the boiler and the glass tube while the third cock is in used to discharge some of the water from inside the boiler to see whether the gauge is in proper order or not. The glass tube is protected by means of a cover, made of specially toughened glass, which will prevent any accident that may happen due to breaking of glass tube. It is used for ordinary boilers. Image - Water Level Indicator Figure - Water Level Indicator
3 comments
Read more

Boiler Mounting - Blow off cock

BLOW OFF COCK Functions: ·         To discharge a portion of water when the boiler is in operation to blowout mud, scale or sediment periodically. ·         To empty the boiler, when necessary for cleaning, inspection & repair. ·         It is fitted on the boiler shell directly or to a short branch at the lowest part of the water space. This pipe is known as blow-down pipe. Working:   In order to operate the valve, the rectangular slot is brought in line with the passage of the body. This is possible by rotating the plug with the help of wheel. When the slot is placed in this position, the cock is opened and all the impurities, mud, sediments etc. Start flowing out of the boiler and they are removed. When the slot is brought at right angles to the passage of the body, the cock is closed. Image - Blow Off Cock Fig - Blow Off Cock...
Post a Comment
Read more

DOM MANUAL / B-TECH / MECHANICAL / KUK - TO FIND THE SPEED AND TORQUE OF DIFFERENT GEARS IN AN EPICYCLIC GEAR TRAIN.

OBJECTIVE: TO FIND THE SPEED AND TORQUE OF DIFFERENT GEARS IN AN EPICYCLIC GEAR TRAIN. SPECIFICATIONS : 1.       GEAR TRAIN : SUN GEAR : 14 TEETH 2.       PLANT GEAR: 21 TEETH (2 NOS.) 3.       INTERNAL GEAR WITH : 56 TEETH TORQUE MEASUREMENT ·          INPUT TORQUE – MOTOR CURRENT CALIBRATED FOR MOTOR TORQUE. ·          PLANT CARRIER - PULLEY OF 50 MM DIA AND SPRING BALANCE. ·          INTERNAL GEAR - PULLEY, 120 MM DIA AND SPRING BALANCES. Ø   BOTH PULLEYS ARE PROVIDED WITH ROPE OF 12 Ø   MM DIA Ø   DRIVE MOTOR - 1HP DC MOTOR RPM MOTOR OPERATING ON 220 VOLTS Ø   50 HZ SUPLLY, DRIVING THE SUN GEAR. CURRENT(AMPS) TORQUE 1.00 0.5 1.20 1.5 1.40 2.5 ...
357 comments
Read more