Four -freedom degree parallel mechanism

The utility model provides a four -freedom degree parallel mechanism, include: quiet platform, the connecting rod moves platform and telescopic link, the central point of quiet platform puts and is provided with the removal guide slot, connecting rod one end is connected in removing the guide slot, the other end articulates the central point who moves the platform puts the department, quiet flat edge of table is provided with a pair of first pin joint and a pair of second pin joint, it is provided with a pair of third pin joint and a pair of fourth pin joint to move flat edge of table, a pair of first pin joint passes through the telescopic link is continuous with the third pin joint and the fourth pin joint of adjacent side respectively, a pair of second pin joint passes through the telescopic link is continuous with the third pin joint and the fourth pin joint of adjacent side respectively. The utility model discloses utilize telescopic link and connecting rod, couple together through articulating quiet pla