USED ​​LORENZ GEAR CUTTING MACHINES

Description

I AM SELLING A USED, WORKING SERIES OF LORENZ GEAR CUTTING MACHINES. THEY COME FROM THE SAME SYSTEM. PARALLEL MACHINING FOR VARIOUS GEAR SIZES. PRICE ONLY ON REQUEST.

A gear cutting machine is a machine tool used to produce gears, such as gears and cogwheels. Lorenz brand gear cutting machines are particularly renowned for their quality and precision in the gear manufacturing industry.

What is a Tooth Grinding Machine?

A gear hobbing machine is a machine tool that creates toothed profiles on metal workpieces, usually for producing gears. There are several types of gear hobbing machines, including hobbing machines (for cylindrical teeth), knife hobbing machines (for non-cylindrical teeth), and shaping machines (for internal teeth).

How to Use a Gear Hobbing Machine

The gear hobbing machine works through a synchronized movement between the tool (which can be a hob or another type of cutting tool) and the workpiece. During the process, the tool removes material from the workpiece, creating teeth with the desired shape.

Materials Used

Gear hobbing machines are primarily used to machine metals, especially steel, cast iron, and aluminum alloys. They can also machine other metallic materials depending on the specific needs of the finished product.

Main Industrial Sectors

Gear cutting machines are essential in various industrial sectors, including:

Automotive industry : for the production of transmission gears.
Aerospace industry : for the production of critical components.
Precision mechanics industry : to produce gears for watches, machine tools, and other devices.
Wind energy : for the production of large gears for wind turbines.

Calculations and Formulas to Optimize Use

Optimizing the use of gear hobbing involves several calculations, including:

Calculating the module : $\frac{d}{z}$ $m$ $=$ $z$ $d$ , $m$ is the module, $d$ is the pitch diameter, and $z$ is the number of teeth.
Pressure angle calculation : necessary to define the shape of the tooth.
Cutting speed : $Vc=π⋅D⋅nV_c = \pi \cdot D \cdot n$ $V$ $_{c}$ $π$ $\cdot$ $D$ $\cdot$ $n$ , where $V_c$ $V$ $_{c}$ is $D$ is the tool diameter, and $n$ is the rotational speed.

Optimal use of the gear hobbing machine also requires careful selection of machining parameters, such as cutting speed, depth of cut, and the type of tool to be used.

Types of Gear Cutting Machines

Hobbing machines : for external cylindrical gears.
Shaping machines : for internal gears.
Knife gear cutters : for special or non-cylindrical teeth.
CNC gear hobbing machines : numerically controlled machines for high-precision and repeatable production.

Alternatives

Alternatives to the denture include:

Milling machines : used with specific accessories to produce teeth.
Electrical Discharge Machining (EDM) : For complex gears or difficult-to-machine materials.
Hot or cold forging : for mass production of simpler gears.

Why It's Worth Buying a Used Lorenz Gear Hobbing Machine

Lorenz gear hobbing machines are known for their robustness and precision. Buying a used model can be advantageous because:

Durability : Lorenz machines are built to last over time, maintaining high performance.
Cost savings : The cost of a used gear hobbing machine is lower than that of a new one, but with proper maintenance, it can offer similar performance.
Reliability : Lorenz is a historic brand, with a long tradition of excellence in the production of gear machines, so even the older models tend to be reliable.

In summary, a used Lorenz brand gear hobbing machine can offer excellent value for money for those who require precision and robustness in gear production.