Abstract: A work support includes a mounting plate and a mechanical lock coupled to the mounting plate. The mechanical lock includes a base coupled to the mounting plate and a support pin. The support pin is movably coupled to the base. As such, the support pin can move relative to the base. The work support further includes a locking collar at least partly disposed inside the base. The locking collar surrounds the support pin and includes a first collar portion disposed around the support pin. The first collar portion has an outer tapered surface facing away from the support pin. The locking collar further includes a second collar portion disposed around the support pin. The second collar portion has an inner tapered surface facing toward the support pin and can move relative to the first collar between an unlocked position and a locked position.

Abstract: A work support includes a mounting plate and a mechanical lock coupled to the mounting plate. The mechanical lock includes a base coupled to the mounting plate and a support pin. The support pin is movably coupled to the base. As such, the support pin can move relative to the base. The work support further includes a locking collar at least partly disposed inside the base. The locking collar surrounds the support pin and includes a first collar portion disposed around the support pin. The first collar portion has an outer tapered surface facing away from the support pin. The locking collar further includes a second collar portion disposed around the support pin. The second collar portion has an inner tapered surface facing toward the support pin and can move relative to the first collar between an unlocked position and a locked position.

Abstract: A plate assembly can support a cylinder head and includes a frame. The frame includes a frame body and a supporting wall extending from the frame body. The frame body defines an inner frame surface. The inner frame surface and the supporting wall jointly define a frame cavity. The plate assembly also includes an insert configured to support the cylinder head. The insert is sized to be received in the frame cavity and includes an insert body. The insert body defines a top insert surface, a bottom insert surface opposite to the top insert surface, and a lateral insert surface interconnecting the top and bottom insert surfaces. The supporting wall supports the insert such that the inner frame surface surrounds the lateral insert surface and the supporting wall contacts the insert bottom surface when the insert is disposed in the frame cavity.

Abstract: A plate assembly can support a cylinder head and includes a frame. The frame includes a frame body and a supporting wall extending from the frame body. The frame body defines an inner frame surface. The inner frame surface and the supporting wall jointly define a frame cavity. The plate assembly also includes an insert configured to support the cylinder head. The insert is sized to be received in the frame cavity and includes an insert body. The insert body defines a top insert surface, a bottom insert surface opposite to the top insert surface, and a lateral insert surface interconnecting the top and bottom insert surfaces. The supporting wall supports the insert such that the inner frame surface surrounds the lateral insert surface and the supporting wall contacts the insert bottom surface when the insert is disposed in the frame cavity.