Metro segment's special fixture

The utility model provides a metro segment's special fixture, including base and chuck, the chuck includes arc steel sheet and connection stem stem, and arc steel sheet vertical welding has the connection stem stem, two parts about the connection stem stem is separated to become by the arc steel sheet, it is less than the lower part external diameter to connect stem stem upper portion external diameter, lower part cavity and can supply to connect stem stem upper portion and insert, arc steel sheet up end are connected with antiskid rubber gasket, have the locating hole that a plurality of slope set up on the base, connect the stem stem lower extreme and can insert in the locating hole. This special fixture is used for a plurality of metro segment of centre gripping for can not swing around about curved metro segment, the condition can not appear empting, be equipped with the arc steel sheet between about moreover, can not take place extrusion or collision. Wooden preparation can be used to the base, prevents