What Is A Floating Chuck?

In the process of mechanical machining, the machining of holes has always been a key and difficult point in the entire machining engineering. Usually, drilling tools such as drills, drill chucks, reamers, honing rods, etc. are used. Floating fixtures are generally not mentioned in the industry, but it is often heard that workers talk about floating chucks. So what is a floating chuck?

What is a Drillstar floating fixture:

A floating holder refers to a tool that can float along an axis parallel to the tool axis, swing at an angle in vertical space, or have both types of float simultaneously.

Why use floating fixtures

In the manufacturing process of mechanical components, there is often a large demand for high-precision and high surface quality hole machining, and hole machining has always been a difficult and key point in mechanical machining. The use of high-precision honing after drilling and reaming is undoubtedly the most important and common machining method.

The single stroke honing process of Drillstar Machine maintains a high level of precision while completing a series of precision machining, including surface roughness, cylindricity, etc., in a single reciprocating motion. Its inherent requirements for the straightness of the spindle and workpiece are also quite high.

If a honing machine is used, due to the special assembly of the floating spindle and following motor, high-quality universal joints can generally be used to achieve high-efficiency single stroke honing.

Machining center

Although domestic machine tool manufacturers are constantly striving to improve their product quality and accuracy to meet various precision requirements, it is still difficult to achieve straightness between the spindle of the machine tool and the hole to be honed, as this involves decades of research and development level of the manufacturer, as well as the upstream and downstream supply chain level of any part in the machine tool.

You cannot request a domestically produced machine tool or machining center worth over 100000 yuan to reach the same level as an imported machine tool with three times their selling price; So achieving high center and cylindricity of the inner hole is still a very tricky problem.

In addition, another important and most difficult reason to solve the poor linearity between the spindle and the workpiece is the heat generated by the machine tool bearings, which leads to the concentricity deviation of the spindle, which is almost an unavoidable factor.

As you know, in order to achieve high-precision concentricity between the hole and the machine spindle, it is necessary to make the honing rod perfectly extend into the hole and ensure that it is not subjected to any radial force. The floating fixture is designed to achieve this goal.

At the same time, the floating fixture also compensates for errors in workpiece installation, honing rods, etc. in the horizontal axis or vertical space.

Whether it is a domestic machine tool or an imported high-precision CNC machine tool, the improvement of the straightness and cylindricity of the hole by the floating fixture is decisive!

The characteristics of the Drillstar floating fixture:

1. Radial amplitude suppression at 5 μ Below m

2. Less investment but able to achieve higher precision processing than before

3. Reduce tool replacement time and improve production efficiency

4. Eliminating deviations caused by cutting resistance

5. Suppress unstable quality, reduce defective products, and repair workpieces

6. Correct the hole machining deviation in the previous process

Floating fixtures are used in machining machinery such as drilling machines, vertical machining centers, honing machines, etc.

Application tools: diamond honing rods, reamers, taps, rolling cutters, etc.

The application areas include: automotive engines, marine engines, as well as mechanical component manufacturing in various fields such as hydraulic, medical, energy, and aviation.