Abstract: A precision alignment apparatus that automatically welds together the parts of a cut-apart torque converter. A precision cast and machined frame is provided onto which are mounted a spindle assembly, a double-end air cylinder and a turntable which are aligned within a close tolerance along a longitudinal axis. The spindle assembly grabs and aligns the upper half of the torque converter. The double-end air cylinder moves the spindle assembly along the longitudinal axis and provides for the longitudinal alignment of the torque converter parts. The turntable supports and aligns the lower torque converter half. The apparatus provides for automatic welding of the first part to the second part while alignment is maintained by the spindle assembly and the turntable. During welding the turntable and the spindle assembly rotate about the longitudinal axis to move the torque converter past the stationary welding device.

Abstract: A mechanism for heat bonding a mastic coated opened band to a heat conductive hub which utilizes a mandrel sized to fit within the hub. The mandrel itself is formed of heat conductive material and includes cavities for carrying heating elements. The hub is mounted on a mandrel while the mastic coated band is held tightly to the external surface of the hub. Heating elements transfer heat to the mastic on the bands and permit the same to be fixed to the hub when cooled.

Abstract: An automatic welding turntable for welding together the cut-apart halves of a reconditioned torque converter is tilted to cause the bead of weld to fill the crack between the halves of the torque converter. A motor rotates the torque converter in a first direction while wire is fed to the stinger of a wire-fed arc welder. A sensor and a control circuit cause the torque converter to rotate 360.degree. plus a predetermined increment, stop welding, counter-rotate the predetermined increments, and shut down so that the turntable is set up to complete the next weld of 360.degree. plus the predetermined increment.

Abstract: A test stand for pressure testing rebuilt torque converters includes a retainer frame assembly for supportably receiving the torque converter and a plug assembly for sealing and pressurizing the interior of the torque converter. The retainer frame assembly includes a cup for receiving the pilot hub of the torque converter and a locking bar with safety latches for retaining the plug assembly in the central aperture of the torque converter when the interior of the torque converter is pressurized. The retainer frame assembly is mounted on a vertical support stand and can pivot 90 degrees with respect to the support stand to change the central axis of the torque converter from vertical to horizontal. The retainer frame assembly is also capable of rotating 360 degrees with respect to the support stand. The torque converter may be installed in the retainer frame assembly when the retainer frame is oriented with the cup facing upwardly so that the retainer frame assembly supports the torque converter.