| 摘要 |
A jig assembly (1) which includes a universal joint (3) to enable three- dimensional movement of a workpiece or handling device attached thereto. The assembly is particularly useful for enabling translation and rotational movement of heavy machinery a nd components for servicing and maintenance. The jig assembly (1) may comprise one or more ball joints (3) which may be moved by actuators such as hydraulic cylinder (7,8). The assembly (1) may be provided on its own movable frame (4), or it may be attached to a front e nd of a loader. |
