Lathe Carriage | Lathe Carriage Assembly | Lathe Carriage Mechanism | Carriage Parts | Carriage
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Carriage
The carriage is the part of the lathe which slides over the bed-ways between the headstock and the tail stock.
It provides various movements for the cutting tool manually as well as by power feed. The carriage can be locked on the bed at any desired position by tightening the carriage lock screw. The tool is provided with the following three movements by the carriage.
Longitudinal feed - with the help of the carriage movement (parallel to the axis of work).
Cross-feed - with the help of the cross-slide movement (perpendicular to the axis of the work).
Cross Slide
The bottom of the cross-slide has got a dovetail groove machined, which corresponds to the external dovetail machined on the saddle. The cross-slide is assembled to the saddle with the help of a tapered jib. The adjustment of the jib facilitates the required fit for the movement of the
cross-slide on the saddle. The cross-slide functions perpendicular to the lathe axis either by hand feed or by automatic feed.
A left-hand square or acme thread screw-rod fitted with a hand wheel helps in the manual movement of the cross-slide. The automatic feeding is achieved through gearing. A graduated collar mounted on the screw-rod along with the hand wheel helps to set the fine, movements of the cross slide.
Compound slide or Compound rest
Compound rest is made of two parts.
• The swivel base
• The top slide
The swivel base is assembled to the top of the cross-slide and may be clamped at any required position between 0° to 360° by tightening the T’ bolts. The head of the bolts moves in the T slot groove on the top of the cross-slide. The swivel base is provided with a dovetail on its top surface
and the top slide has a corresponding dovetail groove. The assembly of the top slide to the swivel base is done by a tapered jib which can be adjusted to control the top slide movement. The sliding of the top slide on the swivel base is accomplished by the help of a screw-rod fitted with a hand wheel and a graduated collar. Only manual operation is possible for the top slide. The top slide assists in feeding the tool to the work.
What topics are covered in this video?
Main parts of lathe machine
1. Carriage
a. Saddle
b. Cross slide
c. Compound slide
d. Tool post
2. Method of feed to lathe carriage
a. Automatic feed
b. Manual feed
3. Relation of lead screw & feed rod to lathe carriage
कैरेज लेथ मशीन का मुख्य अंग है जिस पर टूल को कंट्रोल करने वाले पार्ट्स फिट रहते है | कैरेज, लेथ मशीन के बेड पर हेड स्टाक और टेल स्टाक के बीच चलाया जाता है, इसका मुख्य कार्य टूल का सही पोजीशन में बनाये रखना तथा फीड कंट्रोल करना है |
लेथ कैरेज के मुख्य भाग सैडल, क्रास स्लाइड, एप्रन, टॉप स्लाइड और टूल पोस्ट है | सैडल को ऑटोमेटिक तथा मैन्युअल दोनों प्रकार से चलाया जा सकता है, मैन्युअल चलने के लिए हैण्ड व्हील तथा ऑटोमेटिक चलने के लिए फीड रॉड की व्यवस्था होती है, यहाँ ध्यान देने योग्य बात यह है की फीड रॉड और लीड स्क्रू दोनों अलग-अलग भाग होते है, फीड रोड का इस्तेमाल थ्रेड कटिंग के दौरान किया जाता है|
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