Patent ID: 8307522

Claim:
A machine tool having a pallet mounting table for placing a pallet thereon, wherein said pallet mounting table comprises a plurality of guide pins having tapered front ends proximal to the pallet placed on the pallet mounting table, an elevatable lift pin elevatable relative to a top surface of the pallet mounting table and having a spherical front end proximal to the pallet placed on the pallet mounting table, and a taper cone having a tapered outer peripheral surface; said pallet comprises top and bottom surfaces and two brackets provided on respective side surfaces of said pallet that join the top and bottom surfaces such that the two brackets laterally project in respective side directions from a respective one of the side surfaces of the pallet; wherein each bracket is formed with a guide hole into which a respective one of the guide pins is inserted for rough positioning of said pallet; and wherein the bottom surface of said pallet is formed with a locate hole having a tapered inner peripheral surface and engaging with said spherical front end of said lift pin for precision positioning of said pallet, and is formed with a taper hole having a complementary shape with said taper cone and engaging with said taper cone for final positioning of said pallet.