Jakobs motorized turrets lathe tools

Login to Your Account. Remember Me? Register Forgot password? What's New? Likes: 0. Results 1 to 10 of Thread: Turret lathe box tools? Thread Tools Show Printable Version. Turret lathe box tools? Is there such a thing as a "large capacity" box tool for a small turret lathe? I realize some of that has to do with long parts needing clearance down the middle of a hollow shank.

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These stops enable different tools set at different stations. To move by a fixed amount for performing different operations on repetitive workpieces without measuring the length or diameter of the machined surface in each case. These special characteristics of a capstan and turret lathe enable it to perform a series of operations such as:.

The capstan or ram type lathe is shown in the figure. This machine carries the hexagonal turret on ram or a short slide. The ram slides longitudinally on a saddle positioned and clamped on lathe bedways. This type of machine is lighter in construction and is suitable for machining bar is smaller diameter.

The feeding movement is obtained when the ram moves from left to the right. And when the ram is moved backwards the turret indexes automatically. And the tool mounted on the next face comes into operation.

The turret lathe is another type of lathe machine. It is used for repetitive production of same duplicate parts, which by the nature of their cutting process are usually replaceable. The hexagonal turret as shown in the figure. It is mounted directly on a saddle and the whole unit moves back and forth on the bed-ways to apply feed. This type of turret lathe machine is heavier in construction.

It is particularly adapted for larger diameter bar work and chucking work. The machine can take in longer workpieces than that in a capstan lathe. The turret lathe has essentially the same parts as the engine lathe except for the turret.

And complex mechanism incorporated in it for making it suitable for mass production work. The bed is a long box like casting provided with accurate guideways upon which are mounted the carriage and turret saddle.

The bed is designed to ensure strength, rigidity and permanency of alignment under heavy duty services. The headstock is a made up of large casting. It is located at the left-hand end of the bed. The different types of headstocks in capstan and turret lathe are as follows:. This is the simplest type of headstock and is fitted with small capstan lathes.

Where the lathe is engaged in machining small and almost constant diameter of workpieces. Only three or four steps of the pulley can cater to the needs of the machine. The machine requires special countershaft unlike that of an engine lathe, where starting, stopping and reversing of the machine spindle can be affected by pressing a foot pedal. In an electric motor driven headstock, both spindles of the machine, and the armature shaft of the motor are one and the same.

Any speed difference or reversal is achieved by directly controlling the motor. Three or four are available and the machine is suitable for smaller diameter of workpieces rotated at high speeds. On the larger lathes, the headstocks are geared and the different mechanism is employed for speed changing by actuating levers.