Work rest blades

• Introduction
  
• Types of work rest blades
  
• Number of seats
  
• Type of material
  
• Connection methods
  
• Work rest blades gallery
  

Centerless machines allow to grind many steps (cylindrical, cone, tapers, centers,) in one operation. As for semi product that is made in large quantities, it allows to produce product with prepared base (external centers) with “zero” run out in reference to other grinded steps like cylindrical (bearing bases or tool holder).

Centerless machine consists of grinding wheel, supporting wheel and workblade. From setting up view, very important is over center high “e” value, and angle of the work rest blade. The main advantage of this method is : • very fast grinding cycle • cheap grinding wheel • very large precision that allows to grind in class 4 or 5 • very small geometric errors like run out or cylindricity • possibility of using cheap loader ( stepper conveyer) • low pressure of cooling oil • possibility of grinding centers, tapers, cylindrical steps • low wheal consumption.

After years of experience of our stuff we are able to produce workblades for centerless machines. We can offer many kinds of work rest blades beginning from typical and ending on special design as per drawings delivered by customer. Because of many types of blanks that are grinded on this kind of machine, we presented below few groups of the most important types of work rest blades.

One radius blade It’s the most common shape of the work rest blade.		Two radius blade Second type of shape. It is used with smaller blanks to strengthen blade’s.
One radius blade with a cutted base (“Backpack”) This type of the blade is more effective with grinding parts where “centers” needs to be grinded.		V shape blade This shape allows to put a workpiece on the moving blade (when the workblade is a part of axis connected with diamond profiling system and moves out from machine – like in Tschudin machine). It requires a larger diameter of the blanks.
V shape with a stainless sheet plate (“Backpack”) In contrasts to V shape blade type there is a stainless plate(gray color) with width starting from 0.2 mm. It allows to work with smaller diameter blanks than in V shape blade type. The stainless plate have an option to move up and down, just as the blade is worn out (by lowering screw – green) diameter of the blanks.

Work rest blade with 3 seats, each seat has a melted in a carbide insert. Special design by GPsoft.

Solid metal seat – hardened to 63HRC		Melted in a tungsten carbide on a flat surface
Melted in a tungsten carbide on a rounded surface made by spherical cutter		Melted in a tungsten carbide on a “V” shape
Metal sheet (from 0.2mm) / stainless sheet / ampco sheet / silver sheet

• Centers are the tools that have been grounded to a point to accurately position a work piece in the axis.
  

Centers are used to: • mount part in concentricity and without run-out • allow the work piece to rotate with or without centers, in grinding or turning machines with high accuracy.


Centers can be internal or external made from:
• construction steel
• HSS steel
• tungsten carbide inserts
• diamond polycrystalline surface
• coated with PVD layers.

For internal centers we are able to do hole diameter from 0.2mm

Our gallery: