Figure 4: TX drill bit 3. Precision hole machining tool The rapid development of modern industry puts higher requirements on the dimensional accuracy, geometry and surface roughness of the hole, especially in the automotive industry, which requires high precision and requires large quantities, so there is an urgent need for high-efficiency precision hole machining tools. Diamond reamer is a precision tool developed to meet this need. In the cylinder head production line conduit and the seat bottom hole, etc., Kennametal blade integrated welding PCD reamer was used; the cylinder head cover positioning hole was finished, and Kenner Bencere split type indexable PCD reamer was used. High-speed and high-efficiency cutting has been realized, and the performance of the high-speed machining center has been fully utilized, which has greatly improved the processing efficiency. The actual sampling of some products in the field? 8, 10 and 13 three sets of holes, the size range of variation within 0.014, the maximum dimensional accuracy error is less than 60% of the tolerance, the average error is less than 0.005mm, the surface roughness of the hole <Ra0. 8. The cylinder crankshaft hole finishing and the cylinder head camshaft hole finishing use the Kennamese Bencere QUATTRO-CUT tool, and the 4-blade indexable insert is mounted in a high-precision sawtooth pocket with dimensional accuracy controlled at μ level. Compared to conventional split indexable tools, the QUATTRO-CUT tool only needs to adjust the radial height of the insert, eliminating the need to adjust the blade back cone and reducing the adjustment time. According to the sampling record, the crankshaft hole is finely tuned. Dimensional accuracy machining error <0.018mm, coaxiality error <0.016mm, minimum error only 0.0021mm, roughness <Ra1.6; fine camshaft hole, coaxiality error <0.007, minimum error 0.0014mm, roundness The error is <0.002mm, the position error is <0.063, the minimum error is 0.0148mm, the dimensional accuracy deviation is <0.018mm, and the minimum deviation is 0.0044mm. The processing of the two sets of holes can meet the beat requirements, and the trial processing has produced hundreds of pieces so far, with good results. 4. Cylinder bore and crankshaft machining tool The cylinder block of the cylinder production line of the Great Wall Company, the cast iron cylinder liner of the cylinder hole cast, the rough machining of the cylinder hole is a large amount of cast iron processing, which requires high strength and toughness of the knife. The Kenner Fix-Perfect tool is carefully considered. . The Fix-Perfect tooling system is a product line with different positive and negative angle combinations. It features a negative radial rake angle and a positive axial rake angle. The positive axial rake angle reduces the axial cutting force and The negative radial rake angle creates a good shearing effect for chip breaking. The positive axial rake angle causes the cutting force to be directed toward the main shaft, which makes the milling cutter work more stable. Moreover, the negative radial rake angle can make the earliest "impact point" that cuts into the workpiece away from the cutting edge and protect the cutting edge. The blade is vertically mounted, and the lower part of the blade has a strong physical support, which increases the strength of the blade. Fix-Perfect tool processing accuracy, surface roughness are good, the only drawback is that the life is too low. Previous page next page Heavy Duty wheels,Industrial Fixed Caster,Pvc Cater Wheel,Caster Wheel BENYU CASTERS & WHEELS CO.,LTD , https://www.benyucaster.com