A system and method for vehicle assembly may include a vehicle body sensing unit sensing positions of vehicle bodies conveyed at regular intervals along a vehicle body convey line, a tool sensing unit disposed on a fastening tool for assembling parts to a vehicle body and sensing movement displacement of the fastening tool with respect to an origin of the fastening tool, a tool controller that transmits a fastening torque value of a predetermined part to the fastening tool in accordance with the movement displacement of the fastening tool and records an accumulated value of the movement displacement of the fastening tool, and a main controller that stores a result value of fastening the part, corresponding to a vehicle number of the vehicle body, on the basis of the accumulated value of the movement displacement of the fastening tool and positional information of the vehicle body.

The present application discloses methods and apparatus for installing fitting components, such as a conduit gripping device, on a conduit to form an assembly. The assembly is joinable with at least one other fitting component to form a fitting. The present application also discloses methods and apparatus for evaluating characteristics of components of a mechanically attached connection. Characteristics that may be evaluated include, but are not limited to, the position of a conduit gripping device on a conduit, an amount of axial compression or stroke of the conduit gripping device, an amount of clamping force applied to the conduit gripping device as the conduit gripping device is compressed, and an amount of torque applied to members that compresses the conduit gripping device.

A bolt fastening drive device is disclosed. The bolt fastening drive device includes a rotary shaft coupled to a drive controller and rotated, a bit part in which a first end is coupled to the rotary shaft and a second end is coupled to a bolt so that the bolt is fastened to a fastening hole of a fastening member, a first bracket coupled to the rotary shaft, a sensor part coupled to an inner portion of the first bracket, and a second bracket in which a first portion is brought in contact with a bolt head of the bolt and a second portion is coupled to the sensor part.

A bolt fastening drive device is disclosed. The bolt fastening drive device includes a rotary shaft coupled to a drive controller and rotated, a bit part in which a first end is coupled to the rotary shaft and a second end is coupled to a bolt so that the bolt is fastened to a fastening hole of a fastening member, a first bracket coupled to the rotary shaft, a sensor part coupled to an inner portion of the first bracket, and a second bracket in which a first portion is brought in contact with a bolt head of the bolt and a second portion is coupled to the sensor part.