In this informational article, we will examine the significance of proper leveling procedures for a Weinig R 960 moulding knife-grinding machine, these leveling procedures will benefit all makes and models of profile knife grinders manufactured while increasing the service life of the machinery.
Let proceed with some brief explanations of why a profile knife grinder should be absolutely level prior to installation and checked for levelness periodically during the lifespan of the machinery.
Lineal bearings which allows smooth movement both radially and axially of the grinding arbor carriage can be affected and eventually cause flat or dead spots in the roller bearings and cage’s themselves, lineal bearing are expensive and require an experienced service technician to be properly replaced.
Dovetail slides are another thing that comes to mind, these cast iron slide ways that enable the grinding machine operator to change back clearance knife grinding angles can be worn prematurely causing differences in rough and finish grinding accuracy over time, these slide ways are also very expensive and time consuming to replace.
Proper water filtration is essential on knife grinder machinery, water seeks its own level, a profile grinder that is not leveled properly will hinder the machines ability to filter and reuse the grinding coolant water.
Most moulding knife grinders come with four leveling pads made of cast iron to absorb any vibrations, four 19mm leveling bolts, eight flat washers, and eight 19mm nuts to secure the leveling bolts once the machine is level. The image located above illustrates the proper assembly of a single leveling bolt and leveling pad on one of four corners of a Weinig R 960 profile grinder.
Starting with placement of the Weinig R 960 on a hard, stable surface, preferably cement, all moulding knife grinding machinery ought to be level in both directions front to rear, and side-to-side to obtain proper functionality of the equipment in service. When beginning to level the machinery choose one direction first, front to rear or side to side, making sure all leveling bolts carry equal amount of weight load. A quality machinist level is required to perform the leveling task efficiently; a duel level (levels in both directions at once) works best to reduce the time it takes to accomplish the job.
Place a grinding spindle arbor in the carriage assembly, clamp into place, next place the machinist level on top of grinding spindle as illustrated in image above, then adjust the leveling bolts on one side or the other depending on which movement is required to obtain levelness.
The images above illustrate an excellent area for leveling the machine from front to rear, place the level up against the tool rest-mounting bracket, this area is the most desirable section of the sheet metal water-recycling tray, next adjust leveling bolts located in front or behind machine depending on which direction you need to adjust to levelness.
The final technical steps are as follows, check once again in each direction as illustrated to fine-tune the adjustments made earlier, lastly lock all the 19mm nuts in place using two wrenches, one on the 19mm nut on top and one on the 19mm nut below (see first image), this action will keep from moving the 19mm adjusting bolt.
We trust we have helped you accomplish the simple but important task of leveling your profile grinder with minimal effort, please check the level of your profile grinder and moulder periodically to assure levelness of all machinery owned.
We have other important profile grinder informational articles located on our website for your convenience, if we can be of any further assistance with any of these subjects please feel free to contact us.