Centre gripping type point gum machine

The utility model relates to a point gum machine, especially centre gripping type point gum machine. This point gum machine includes work platform, a supporting plate, the reference column, the locating plate, the sliding sleeve, the head is glued with the point to the telescopic link, be equipped with the backup pad on the workstation, be equipped with the reference column in the backup pad, work platform side section is perpendicular continuous with the locating plate, the locating plate top is equipped with the sliding sleeve, the sliding sleeve passes through the telescopic link and glues first fixed connection with the point, reference column and backup pad sliding connection, the reference column top connects with the dead lever hinge, be equipped with the spout in the backup pad, the reference column is arranged in the spout through the slider of its bottom, realize the sliding connection with the backup pad, establish rubber sleeve on the dead lever absolutely, the centre gripping to the work piece can be adjusted to this point gum machine, thereby adapt to various work piece shapes, and save cost, shortens testing periods.