Mechanical tube expander with four axis control

Details Mechanical tube expander with four axis control Mechanical tube expander with four axis control

1993-08-06

1994-10-11

Cuda, Irene

Metal working

Means to assemble or disassemble

Heat exchanger

29723, 29898047, B23P 1526

Patent

active

053534964

ABSTRACT:
A mechanical tube expander for simultaneously expanding plural hairpin tubes into interlocked relationship with plural fins which includes a frame on which is provided a receiver to support the bent portions of the hairpin tubes in an assembly of fins loosely stacked on the straight leg portions of the hairpin tubes. A support structure is also provided on the frame for engaging and supporting a first endmost fin that is oriented immediately adjacent to but spaced from the receiver. A pressure plate carrying a plurality of expander rods is provided and each of the expander rods is aligned with the hairpin tubes. A stripper plate structure having plural guide openings therethrough is also provided. The expander rods extend through the guide openings. Structure is provided on the stripper plate for engaging a second endmost sheet of the assembly of fins at an end thereof which is remote from the receiver. Separate drive devices are provided for effecting a selective and coordinated movement of each of the pressure plate, the stripper plate structure and the support structure relative to each other and in response to a movement of the expander rods and the tube expanding structure thereon into the straight leg portions of the hairpin tubes which effects an enlarging of the diameter of the straight leg portions to effect a fixing of each of the fins to the hairpin tubes.

REFERENCES:
patent: 3688533 (1972-09-01), Ames
patent: 4584765 (1986-04-01), Gray
patent: 4597171 (1986-07-01), Kitayama et al.
patent: 4780955 (1988-11-01), Stromp
patent: 4835828 (1989-06-01), York et al.
patent: 4839950 (1989-06-01), Stromp
patent: 5003691 (1991-04-01), Milliman et al.

Affiliated with

Also associated with

Rating

Mechanical tube expander with four axis control does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Mechanical tube expander with four axis control, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Mechanical tube expander with four axis control will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1649996