Vertical Turret Lathes

Vertical Turret Lathes

Vertical Turret Lathes - Vertical turret lathes are designed for considerably larger and heavier work than is commonly associated with either type of horizontal turret lathes. Vertical lathes are utilized solely for complex chucking work, particularly for boring operations, and are not adapted to bar work.

 Vertical turret lathe closely resembles a vertical boring mill. It commonly has a rotating table ranging from 600 to 1200 mm in diameter, which is equipped with both remov­able chuck jaws and T-slots for clamping the work.

The main tool head is mounted on the cross rail 'c' along which it travels horizontally and with which it travels vertically. The five sided turret is mounted on a ram R which travels vertically in the cross rail tool head. This turret can be easily and quickly indexed from hole to hole and clamped with a lever.

Tools are clamped in the tool holes of the turret by the same type of holders as those used in horizontal turret lathes. Frequently, a second tool holder also is mounted on the cross rail. Each motion for successive tools can be controlled by means of stops so that duplicate work pieces can be machined with one tooling setup.

Tooling Equipment For Vertical Turret Lathe

All the cross rail tool heads and the side tool head have power feeds in the forward and reverse directions, as well as rapid traverse motions for tool approach and return motions. A five sided turret is available so the operations must be completed by five indexing of the turret. This necessitates multiple tool setting arranged as follows:

1. There are four tools in the holder No.1, first tool, left rough faces the top and then with a vertical feed rough turn the rim. The next two tools finish top and radius corner and the fourth tool skins the vanes which are at an angle.

2. Operation, 2, involves three tools to rough face: the boss at three different heights.

3. Operation number 3, finish machines the same faces;

4. Operation 4, one tool finish turns the outside rim with a vertical traverse, while the comers of the inside boss are radiused and chamfered by the two remaining tools.

5. The 5th operation is to rough and finish bore and to size the top recess of the bore.