Mechatronics Canada

MC-4-SCHUNK-ROTATHW3-400.jpgMarch 18, 2021

If you want to manufacture turned parts more efficiently, low-maintenance and fail-safe precision clamping devices are required. These can be quickly and easily converted, and, if necessary, can also be used for automatic loading. The SCHUNK ROTA THW3 chuck with quick-change jaws and patented sealing of the chuck mechanism has been designed for with this in mind. Users benefit from a permanently high process reliability, constant clamping forces and long maintenance intervals.

The all-rounder for different applications

Equipped with a quick-change jaw system, the ROTA THW3 can be quickly converted for a new range of parts on CNC lathes, pick-up lathes and turn/mill centers, and has an excellent jaw repeat accuracy of up to < 0.02 mm. Previously turned out sets of jaws can be repeatedly used, even for applications where the tolerances are challenging. The jaw stroke of the straight-serrated base jaws amounts to 6.7 mm to 10.5 mm – depending on the jaw size. A ring piston transmits the force transmission directly and therefore ensures a high degree of efficiency: The clamping force of the smallest size, the ROTA THW3 200 is 64 kN, and as of size 400, the chuck achieves a clamping force of 240 kN. The chuck’s base body is hardened and extremely rigid, and even in case of heavy-duty machining precise and reliable machining results can be achieved. Due to the optimized outside contour, the chuck is perfectly designed for milling tasks. Versatile use of the chuck is ensured: it has a large through-hole of 52 mm (size 200) up to 165 mm (size 630), center sleeves that can be exchanged from the front, and the option of I.D. and O.D. clamping. Furthermore, the power lathe chuck can also be complemented with an adjustable workpiece stop.

Quickfinder for chuck jaws

Searching for the matching chuck jaws for the SCHUNK ROTA THW3 chuck is child’s play with the jaw quickfinder: It takes just four clicks to get to chuck manufacturer, chuck type, chuck size and product details. The user receives a list of all matching chuck jaws from over 1,200 jaw types of the world’s largest standard chuck jaw program from SCHUNK. The matching chuck jaws can be directly selected within the quickfinder.

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Featured Article

MC What to Consider When Choosing a New Motion Control Solution 1 400x275

When it’s time to consider a new motion control solution for your application, rule #1 is “Solve the problem, then worry about the design.”

This is easier said than done, but not if you apply a disciplined, time-tested framework. First, you must clearly understand the problem and the local environment. Failure to do so often results in a suboptimal motion control solution or complete failure.

Secondly, the designer should evaluate the application in light of proven existing motion control solutions. The engineer must also take stock of their skills and the expertise of the team in order to effectively choose the right options and to accurately anticipate development time and resources.

Before choosing any motion control products, the design engineer needs a set of principles to guide his or her selection. Long term experience and common sense has taught us seven important, but often overlooked, principles. 

These key learning have been encapsulated in a simple notion known as the SHAIRED paradigm:

  • •Simplicity of design to reduce problem-causing complexity and cost
  • Homework; calculate the required torque, inertia, duty cycle, etc.
  • Analysis of the application and alternatives must be thorough
  • Integration of the system into existing factory automation
  • Redundancy built in to a system to exceed performance expectations and deal with unexpected changed in load and operating parameters
  • Economical solution for the short and long term.
  • Development time must be accurately estimated

Using the above guidelines during motion control system design, evaluation of alternatives, and final product selection will help increase the odds of application success.

To read more, click here 


 

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