Track unit position detection device

The utility model discloses a track unit position detection device which is used for detecting whether a position of a track unit is accurate. The track unit position detection device comprises a base plate and a detection rack. A track is disposed on the detection rack. The track unit is placed inside the track. A transverse column is disposed above the track and is connected with the base plate through a pillar. A detection column is arranged on the transverse column. The track unit is at least provided with two detection holes used for being detected by the detection column. The detection column and the transverse column are connected via an elastic member. Through arrangement of the detection column on the track, the detection holes on the track unit are detected. When the detection column can respectively fall into all detection holes on the track unit, positions of the detection holes on the track unit are proved to be right and then the next operation can be conducted. Otherwise, the position of the tr