Adjustable clamping length's fixture device

The utility model discloses an adjustable clamping length's fixture device. A workstation side end face is equipped with the end cover, move grain -clamping table setting inslot in the workstation andjust move grain -clamping table along workstation internal groove sidewall removal, fixed centre gripping platform is fixed in workstation opposite side upper end, it is equipped with the briquettingwith fixed centre gripping bench end to move the grain -clamping table, the briquetting passes screw hole III with the removal grain -clamping table through clamping screw in proper order, the screwhole cooperation of removing on the grain -clamping table is in the same place, the briquetting passes screw hole III with fixed centre gripping platform through clamping screw in proper order, the screw hole cooperation of fixed centre gripping bench together, the sand grip that fixed centre gripping bench portion and removal grain -clamping table upper portion were equipped with adopts the modeof line contact to press fro