| 摘要 |
A spindle tension testing kit designed to allow mill operators to quickly and easily determine the gripping or holding force of the coupler and drawbar assembly on a spindle against the tool holder used with a milling or other machine using this method of tool retention. In one embodiment, the kit includes a tool holder, an upper frame member, a transfer rod, a clevis member, and a modified pull stud, and a hydraulic piston. The upper frame member threadingly connects to the transfer rod that is longitudinally extended into the central bore formed in the tool holder. The frame member includes a central opening with a lower horizontal member designed to receive a clevis member. The clevis member is a U-shaped member disposed in an inverted, longitudinally aligned position over the lower horizontal member on the frame member so that its legs are adjacent to the top surface of the tool holder when assembled. Attached to the second end of the transfer rod that extends through the tool holder is the modified pull stud. During use, the hydraulic piston exerts a pulling force on the transfer rod which is measured by a pressure gauge to determine whether the connection between the coupler and the modified pull stud is within factory limits.
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