Advantages of Using Dual-Servo Drilling Heads for Valve Stem and Valve Core Micro-Hole Machining

Published:

2026-07-11

The advantages of using the YSA dual-servo drilling power head for valve stem machining include high efficiency and high flexibility. In the dual-servo tapping control program, detailed parameters such as spindle speed,

1. Overview of Tire Valve:
The function of a tire valve is to inflate and deflate the tire and maintain the seal after inflation. A standard tire valve consists of three main parts: the valve body, the valve core, and the valve cap.

2. Function of Tire Valve:
A one-way valve (check valve) used for inflating and deflating tires with gas or liquid, and for maintaining and monitoring internal pressure. For tube tires, it is installed on the inner tube; for tubeless tires, it is installed on the rim.

3. Classification of Tire Valves:

Tire valves can be classified in many ways, roughly as follows: 1. By application:

Tire valves for bicycles, motorcycles/electric vehicles, passenger cars, truck (Baxi) tires, agricultural/construction vehicles, and special-purpose vehicles. 2. By tube type: Tube valve and tubeless valve. 3. By assembly method: Screw-on universal valve, clamp-in valve, and snap-in valve. 4. By core chamber size:

Ordinary core chamber valve and large core chamber valve. 5. By valve core type:

Dunlop/Woods valve (English type), Schrader valve (American type), Presta valve (French type), German type, and Italian type. Tire valves can be classified by structure into rubber-metal valves and metal valves with rubber pads. The former is used for passenger car tire inner tubes, while the latter is mainly used for heavy-duty tire inner tubes. The internal structure of tubeless tire valves is the same as that of standard valves.

4. What are the technical requirements for machining the tiny hole of the valve core using a drilling power head, and for machining extremely fine holes with a spindle power head?

1. Uses YSA drilling and tapping power head to process the vent hole of the valve core, ensuring good surface finish. This is achieved through a stable dual-servo drilling and tapping control program and an adjustable spindle drilling speed, which adapts well to the surface finish requirements of brass valve core materials.

2. Consistent and stable concentricity of the valve core air hole, ensured by the precision of the platform fixture feeding mechanism. The spindle tapping power head has almost no displacement error, guaranteeing consistent concentricity of the valve core hole during drilling and tapping, with high stability.

3. High efficiency and high flexibility.
Drilling and tapping power head
In the dual-servo tapping control program, detailed parameters such as spindle speed, feed rate, and drilling size can be set in the program without replacing other components. The program settings can perfectly achieve drilling parameters for various specifications of valve core air holes.

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Features and Key Points of Dual Servo Power Head Tapping and Threading

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Features and Key Points of Dual Servo Power Head Tapping and Threading

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