1. Align and clamp the platform first according to the processing line that has been drawn on the end face and upper plane of the cast iron surface plate.
2. Use a grooving knife to make a right-angle groove. If the T-slot is small (the groove width is less than 100mm), the top right-angle groove is not required for high accuracy, and it can be cut out in one pass to make its width equal to the width of the T-slot. If the T-slot is small and the notch accuracy is high or the T-slot is large, the right-angle grooves are planed twice by rough planing and fine planing.
3. Plan the left and right grooves on the side. Before processing, use a cast iron square ruler or a cast iron square ruler to check whether the cutting edge of the elbow cutter is perpendicular to the top surface of the cast iron plate (a small angle ε is allowed, generally ε=25'~30' to resist the cutting resistance. If it is not vertical, the tool should be readjusted until it is vertical. Then use an elbow cutter to plan the grooves on the left and right sides respectively.
4. Chamfering. Use two pointed planers with 45° entering angles for chamfering.
cast iron surface plate
Note the following points:
1. When planing the grooves of T-slots with cast iron plates, the cutting amount is required, and manual cutting should be used to avoid damaging the cutting tools and workpieces.
2. In the process of planing T-slots, pay attention to the non-cutting part of the tool not to rub or collide with the cast iron plate, so as to avoid accidents or waste products.
3. At the end of each cutting stroke and the beginning of the return stroke, the planer should be lifted out of the groove. Therefore, the front and rear over travel should be appropriately enlarged, so that there is ample room and space to lift or drop the knife.
Slot processing can generally use a planer or milling machine. For those who are not very strict in size requirements, we can use a planer to process by scribing to improve production efficiency.
