C-frame presses, also commonly referred to as gap frame presses, are characterized by their unique frame style, resulting in the formation of a “C” around the bolster plate. Beckwood offers C-frame presses in a variety of bed sizes and tonnages. Inherent to a typical C-frame design is a tendency for the machine to “yawn” or deflect as tonnages and bed sizes increase. Beckwood’s rigidly guided C-frame designs are engineered to resist deflection or “yawning” using gib-guided ram bolsters or precision graphite impregnated bronze bushings. While the three sided access to the forming area is appealing (or required) for many, C-frame presses are typically best suited for applications requiring smaller bed sizes and lower tonnages. Advantages of C-Frame Presses.
Three access points to the working area facilitate part loading and unloading as well as easy die maintenance and adjustments. More economical than a straight-side press. Machines with higher tonnages or larger bed sizes can use additional materials to reinforce the frame, counteracting deflection or “yawning”.
C-frame presses, also commonly referred to as gap frame presses, are characterized by their unique frame style, resulting in the formation of a “C” around the bolster plate. Beckwood offers C-frame presses in a variety of bed sizes and tonnages.
Inherent to a typical C-frame design is a tendency for the machine to “yawn” or deflect as tonnages and bed sizes increase. Beckwood’s rigidly guided C-frame designs are engineered to resist deflection or “yawning” using gib-guided ram bolsters or precision graphite impregnated bronze bushings. While the three sided access to the forming area is appealing (or required) for many, C-frame presses are typically best suited for applications requiring smaller bed sizes and lower tonnages. Advantages of C-Frame Presses. Three access points to the working area facilitate part loading and unloading as well as easy die maintenance and adjustments.
More economical than a straight-side press. Machines with higher tonnages or larger bed sizes can use additional materials to reinforce the frame, counteracting deflection or “yawning”.
C-frame presses, also commonly referred to as gap frame presses, are characterized by their unique frame style, resulting in the formation of a “C” around the bolster plate. Beckwood offers C-frame presses in a variety of bed sizes and tonnages.
Inherent to a typical C-frame design is a tendency for the machine to “yawn” or deflect as tonnages and bed sizes increase. Beckwood’s rigidly guided C-frame designs are engineered to resist deflection or “yawning” using gib-guided ram bolsters or precision graphite impregnated bronze bushings. While the three sided access to the forming area is appealing (or required) for many, C-frame presses are typically best suited for applications requiring smaller bed sizes and lower tonnages. Advantages of C-Frame Presses. Three access points to the working area facilitate part loading and unloading as well as easy die maintenance and adjustments. More economical than a straight-side press.
Machines with higher tonnages or larger bed sizes can use additional materials to reinforce the frame, counteracting deflection or “yawning”.
C-frame presses, also commonly referred to as gap frame presses, are characterized by their unique frame style, resulting in the formation of a “C” around the bolster plate. Beckwood offers C-frame presses in a variety of bed sizes and tonnages. Inherent to a typical C-frame design is a tendency for the machine to “yawn” or deflect as tonnages and bed sizes increase. Adobe flash player for nokia lumia 635.
Beckwood’s rigidly guided C-frame designs are engineered to resist deflection or “yawning” using gib-guided ram bolsters or precision graphite impregnated bronze bushings. While the three sided access to the forming area is appealing (or required) for many, C-frame presses are typically best suited for applications requiring smaller bed sizes and lower tonnages. Advantages of C-Frame Presses. Three access points to the working area facilitate part loading and unloading as well as easy die maintenance and adjustments. More economical than a straight-side press. Machines with higher tonnages or larger bed sizes can use additional materials to reinforce the frame, counteracting deflection or “yawning”.
It seems the majority of modern presses are plate side weldments and not very complex compared to the shaped castings on some old ones I've seen. This is well done and super simple to fab. Radius the inside corners gererously and don't weld right next to them. You said the press exists. And yet you have to design it.
I assume it's not quite tall enough openiing? Or not quite deep enough front to back? This will dictate your options. How about posting a pictue of the existing unit and describe what needs changed. Hey dsergison; following the image of my Press: Its a 120ton Press, it is made with 2 side by side 4' plates and 2 reinforcements in each side. The press is very expensive to fab. What I realy want is reduce material and fab cost.
Hydraulic C Frame Press
Thanks!If I understand what you have said, each side frame is 8' thick plus a reinforcement. This gives a total of 16' plus two thickness of reinforcements. For a 120 ton unit, this seems to be about 2-4 times heavier than I would expect based on prior sightings of similar sized presses. Is this a one off, or is it for production? Is it a punch press, or is it a hydraulic press? I cannot imagine your reinforcing plates adding anything at all in proportion to their cost. Their section area is dwarfed by the main plates, and they cause you to weld right in the most stressed areas.
What does your cost look like without them? Perhaps there is a way to nest the main plates more efficiently. (get the shapes to interlock so they can be cut out of the stock plate more efficiently) I would look into that first. If the shapes fit on the stock more efficiently you will see direct cost reduction. Some slight altering of the shapes may allow this? 2 engineering options- finite element analysis engineering software, or strain gage test one of your presses and then decide if it is overbuilt. Only you know your material, # of cycles, and allowable deflection.
A very simple FEA analysis will handle this simple shape. You could hire some experienced firm to do this. You could have some college kid do this, if you have the strain gage data to correlate to you could be confident in results of inexperienced analysis.
Comments are closed.
|
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |