Tapdog

Tapdog (also sometimes stylized as TapDog or TAP DOG) is a type of specialized, automated tapping machine primarily used in manufacturing, particularly in metalworking. These machines are designed to precisely and efficiently create threaded holes in various materials. Unlike manual tapping, which relies on human control and can be prone to errors such as over-threading or cross-threading, a tapdog utilizes a controlled mechanical process.

The core function of a tapdog is to hold and rotate a tap (a tool used for cutting threads) while simultaneously applying downward pressure. The process is typically automated, allowing for consistent and repeatable thread creation. They are often used in high-volume production environments to increase efficiency and reduce the risk of human error.

Key components of a tapdog typically include a motor to drive the tap, a mechanism to control the downward pressure (often pneumatic or hydraulic), a fixture to hold the workpiece securely, and a control system to manage the tapping cycle. Some tapdogs may also include features such as depth control, torque monitoring, and automatic lubrication.

The term "tapdog" is considered somewhat industry-specific jargon, and the machines might be more generically referred to as automatic tapping machines or power tapping machines. The advantages of using a tapdog include increased speed and accuracy, reduced operator fatigue, and improved consistency in the quality of the threads produced.