US20060260374A1 - Hydroforming machine - Google Patents
Hydroforming machine Download PDFInfo
- Publication number
- US20060260374A1 US20060260374A1 US11/438,888 US43888806A US2006260374A1 US 20060260374 A1 US20060260374 A1 US 20060260374A1 US 43888806 A US43888806 A US 43888806A US 2006260374 A1 US2006260374 A1 US 2006260374A1
- Authority
- US
- United States
- Prior art keywords
- machine according
- hinge pin
- hydroforming machine
- dies
- die plate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D26/00—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces
- B21D26/02—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces by applying fluid pressure
- B21D26/033—Deforming tubular bodies
- B21D26/047—Mould construction
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D37/00—Tools as parts of machines covered by this subclass
- B21D37/02—Die constructions enabling assembly of the die parts in different ways
Abstract
A hydroforming machine is disclosed which includes a plurality of dies with each die having an upper die plate hingedly connectable to and lockable with a lower die plate. Each upper die plate and lower die plate include an opening therethrough which are substantially alignable with each other. The hydroforming machine also includes a spacing device. The spacing device is disposed in mechanical cooperation with each of the dies and maintains a desired distance between each of the dies. The spacing device includes a plurality of hinges which hingedly connect each die with an adjacent die.
Description
- This application claims the benefits of and priority to U.S. Provisional Patent Application Ser. No. 60/683,658 entitled “BELLOWS HYDROFORMING TOOLS,” which was filed on May 23, 2005, the entire contents of which are hereby incorporated by reference herein.
- The present disclosure relates to a hydroforming machine for forming a bellows and, more particularly relates to a hydroforming machine including a spacing device which allows for rapid changing of the spacing between adjacent dies.
- Hydroforming is one of several processes that may be used for forming pieces of metal into bellows. During hydroforming, a plurality of dies are positioned parallel and adjacent to one another. A hollow tube is inserted into openings of the dies and is held in position. Pressurized water is forced through the hollow tube and the water pressure that is forced against the tube expands the walls of the tube outwardly. The dies apply pressure against the walls of the tube at desired locations along the length of the tube so that the wall of the tube is only expanded between adjacent dies. The dies are compressed together for forcing the expanded sections of the wall into a corrugated pattern for forming bellows.
- The spacing between the dies determines the sizing of the bellows, thus it is typically desirable to be able to accurately and repeatably control and alter this spacing. It may also be desirable to change this spacing relatively quickly.
- The dies generally include an upper die plate and a lower die plate. Further, a locking mechanism is generally included to lock the upper die plate with the lower die plate while the pressurized water (or another liquid or gas) is forced through the tube.
- The present disclosure relates to a hydroforming machine. The hydroforming machine includes a plurality of dies with each die having an upper die plate hingedly connectable to and lockable with a lower die plate. Each upper die plate and lower die plate includes an opening therethrough which are substantially alignable with each other. The hydroforming machine also includes a spacing device. The spacing device is disposed in mechanical cooperation with each of the dies and maintains a desired distance between each of the dies. The spacing device includes a plurality of hinges which hingedly connect each die with an adjacent die.
- The present disclosure also relates to a hydroforming machine including a plurality of dies and a spacing device. Each die has an upper die plate hingedly moveable with respect to a lower die plate between an open position and a closed position. The distance between adjacent dies is adjustable while the upper die plates are in the open position, the closed position and any position therebetween.
- Embodiments of the present disclosure are described hereinbelow with reference to the figures wherein:
-
FIG. 1 is a perspective view of an embodiment of a hydroforming machine of the present disclosure; -
FIG. 2 is a front view of the hydroforming machine ofFIG. 1 ; -
FIG. 3 is an enlarged perspective view of a hinge mechanism of the hydroforming machine ofFIGS. 1 and 2 ; -
FIG. 4 is an enlarged perspective view of a locking mechanism of the hydroforming machine ofFIGS. 1-3 illustrated in an unlocked position; -
FIG. 5 is a partial front view of the hydroforming machine ofFIGS. 1-4 illustrated in a locked position; -
FIG. 6 is an enlarged perspective view of a spacing device of an embodiment of the hydroforming machine; -
FIG. 7 is a partial top view of the spacing device ofFIG. 6 ; -
FIG. 8 is a partial front view of the spacing device ofFIGS. 6 and 7 ; -
FIG. 9 is a partial top view of an embodiment of the spacing device ofFIGS. 6-8 ; -
FIG. 10 is several cross-sectional views a spacer bar as indicated by line 10-10 inFIG. 7 ; and -
FIG. 11 is a partial top view of an alternate embodiment of the spacing device ofFIGS. 6-9 . - Embodiments of the presently disclosed hydroforming machine are described in detail with reference to the drawings wherein like numerals designate identical or corresponding elements in each of the several views. As is common in the art, the term “proximal” refers to that part or component closer to the user or operator, while the term “distal” refers to that part or component farther away from the user.
- Referring to
FIG. 1 , a hydroforming machine is shown and is generally referred to byreference numeral 100. This embodiment ofhydroforming machine 100 includes a plurality ofdies 110, ahinge mechanism 160, alocking mechanism 180 and aspacing device 200. Each die 110 includes anupper die plate 120 and alower die plate 140, which are hingedly connected to each other viahinge mechanism 160. Anupper opening 130 a is disposed in eachupper die plate 120 and alower opening 130 b is disposed inlower die plate 140. Whenupper die plates 120 andlower die plates 140 are approximated,upper opening 130 a andlower opening 130 b form a generallycircular opening 130. - In use, a ram (not explicitly shown in this embodiment) retracts dies 110 as far as
spacing device 200 allows. Whenupper die plates 120 are open (i.e., not approximated with lower dies plates 140), a hollow tube (not explicitly shown) is placed ontolower opening 130 b oflower die plates 140. Upper dieplates 120 are approximated towards lower dieplates 120 via rotation abouthinge mechanism 160. Once fully approximated,upper die plates 120 and lower dieplates 140 are locked together vialocking mechanism 180, thus locking hollow tube therebetween. The hollow tube, which may include a plug (not shown), is generally filled and pressurized with a liquid (e.g., water). Such pressurization causes the hollow tube to bulge into areas betweendies 110.Dies 110 are then collapsed axially by compression exerted by the ram. Dies 110 are forced together so that each die 110 contacts an adjacent die 110.Locking mechanism 180 is then released,upper dies plates 120 are opened and the formed bellow or bellows can be removed. The ram is then retracted, causingdies 110 to be drawn apart fromadjacent dies 110. - With reference to
FIGS. 2 and 3 ,hinge mechanism 160 is illustrated (locking mechanism 180 andspacing device 200 are not illustrated in these figures). In this embodiment,hinge mechanism 160 includes anupper aperture 162 in each ofupper die plates 120 and alower aperture 164 in each oflower die plates 140.Upper apertures 162 andlower apertures 164 at least partially align to formhinge aperture 165. A hinge pin 166 (and/or keeper shaft 167) is insertable throughhinge aperture 165. In the illustrated example,apertures respective plates die 110 is damaged or is in need of repair, it can be removed fromhydroforming machine 100 and anadditional die 110 ordie plate plates upper die plates 120 and lowerdie plates 140 that overlap each other as part of (and possibly adjacent)hinge mechanism 160. It is also envisioned to machine a relief (not explicitly shown) to allow for leaves (not explicitly shown) ofhinge pin 166. - Now referring to
FIGS. 4 and 5 ,locking mechanism 180 is illustrated.Locking mechanism 180 includes a lock aperture 182 and alock shuttle 184. Lock aperture is made up ofupper lock apertures 182 a disposed in each ofupper die plates 120 andlower lock apertures 182 b disposed in each oflower die plates 140. In its unlocked (or first) position (illustrated inFIG. 4 ),lock shuttle 184 is disposed substantially withinlower lock apertures 182 b. When upper dieplates 120 are approximated withlower die plates 140,upper lock apertures 182 a substantially align withlower lock apertures 182 b. Here,lock shuttle 184 is then slidable into its locked (or second) position (illustrated inFIG. 5 ) wherelock shuttle 184 engages bothupper lock aperture 182 a andlower lock aperture 182 b, thus lockingupper die plates 120 andlower die plates 140 together. - To unlock die
plates lock shuttle 184 is returned to its first position. It is envisioned that a lower surface 183 ofupper lock aperture 182 a is titled downward at an angle α towardslower lock aperture 182 b (seeFIG. 5 ) to help ensure dieplates plates upper die plates 120 and/or lower dieplates 140 include at least oneguide aperture 170 extending therethrough. Guide aperture(s) 170 may be provided for primary shaft(s) (not explicitly shown) to extend through. The ram axially pushes dies 110, which ride on the primary shaft(s). -
FIGS. 6-11 illustrate aspacing device 200.Spacing device 200 includes spacer hinges 300 and a spacer bar 310 (or spacers 312). Spacer hinges 300 include aninner hinge pin 302 and anouter hinge pin 304, which are linked together bylinkage 306. Generally, spacer hinges 300 are affixed adjacent an edge (or both edges) ofupper die plates 120 and/or lower dieplates 140. (FIG. 8 illustrateshinges 300 affixed adjacent an edge oflower die plates 140.) More specifically,inner hinge pin 302 is affixed to dieplates outer hinge pin 304 viahinge linkage 306.Spacer bar 310 is disposed betweeninner pin 302 andouter pin 304. More specifically,spacer bar 310 may be disposed between an edge (or shoulder) ofdie 110 andouter pin 304. - With continued reference to
FIGS. 6-11 , when dies 110 are compressed together, outer hinge pins 304 are moved outwardly with respect to inner pins 302 (i.e., outer hinge pins 304 are move away from die 110). Accordingly, when dies 110 are separated from each other,outer pins 304 move inwardly with respect to inner pins 302 (i.e., towards die 110). SeeFIG. 9 . As can be appreciated by referencingFIGS. 6-9 and 11, spacer bar 310 (or spacers 312) limits the inward travel ofouter pins 304 when dies 110 are separated from each other. Thus, altering the width “w” (FIG. 7 ) ofspacer bar 310 changes the distances that dies 110 may move apart from anadjacent die 110. - Using
spacing device 200 ofFIGS. 6-11 , a user is able to remove and replace spacer bar 310 (orspacers upper die plates 120 are approximated withlower die plates 140, or at any time in between. Thus, to change the desired distance between dies 110, a user can easily and quickly removespacer bar 310 and replacespacer bar 310 with a differentsized spacer bar 310. Further, as can be appreciated, a user may perform such a replacement without the use of any tools. - With reference to
FIG. 7 ,spacing device 200 is illustrated adjacent both edge ofdie plates FIG. 7 also illustrates spacer bar 310 (twospacer bars 310 are illustrated) having a substantially constant width “w” along its length. This constant width “w” creates a uniform spacing between eachadjacent die 110. -
FIG. 9 illustratesspacing device 200 having aspacer bar 310 that has a varying width. More specifically,spacer bar 310 is illustrated being stepped with two different widths, w1 and w2. This steppedspacer bar 310 corresponds to different distances between adjacent dies 110, d1 and d2, respectively. Depending on the desired product, aspacer bar 310 having a constant width or a varied width may be used. - Now referring to
FIG. 10 , different cross-sections ofspacer bar 310 indicated by line 10-10 inFIG. 7 are illustrated. While a circular (including oval) and rectangular cross-section are shown, the cross-section ofspacer bar 310 may be any suitable regular or non-regular shape. - With reference to
FIG. 11 ,spacing device 200 having a plurality of spacers 312 is illustrated. In this embodiment, spacers 312 having substantially the same or different shapes may be used to provide proper spacing for adjacent dies 110. Here, at least a portion of circular-shapeddisc 312 a is positioned betweeninner hinge pin 302 andouter hinge pin 304. Included in this embodiment, is a portion of spacer 312 positioned betweenouter hinge pin 304 and an edge ofdie 110. In addition to circular-shapeddisc 312 a, arectangular spacer 312 b is illustrated. Spacer 312 may have any suitable regular or irregular shape. It is also envisioned that spacer 312 is positioned between a head of outer (or inner)hinge pin 304 and a portion oflinkage 306. It is further envisioned that spacer (e.g., 312 a) will be vertically spaced apart from an adjacent spacer (e.g., 312 b) to enable dies 110 to be compressed withoutadjacent spacers - While several embodiments of the disclosure have been shown in the figures, it is not intended that the disclosure be limited thereto, as it is intended that the disclosure be as broad in scope as the art will allow and that the specification be read likewise. Therefore, the above description should not be construed as limiting, but merely as exemplifications of various embodiments. For example, it is envisioned that objects other than bellows may be created from such a hydroforming machine. Those skilled in the art will envision other modifications within the scope and spirit the claims appended hereto.
Claims (20)
1. A hydroforming machine, comprising:
a plurality of dies, each die including an upper die plate hingedly connectable to a lower die plate via a hinge mechanism and lockable with the lower die plate via a locking mechanism, each upper die plate and each lower die plate including an opening therethrough which are substantially alignable with respect to each other; and
a spacing device disposed in mechanical cooperation with each of the dies for maintaining a desired distance therebetween, the spacing device including a plurality of hinges which hingedly connect each die with an adjacent die.
2. The hydroforming machine according to claim 1 , wherein the spacing device further includes a spacer bar.
3. The hydroforming machine according to claim 1 , wherein each of the plurality of hinges comprises an inner hinge pin, an outer hinge pin and a linkage including a first opening for receiving the inner hinge pin and a second opening for receiving the outer hinge pin.
4. The hydroforming machine according to claim 3 , wherein the inner hinge pin extends through at least a portion of a die.
5. The hydroforming machine according to claim 3 , further comprising a spacer bar being positionable between the inner hinge pin and the outer hinge pin.
6. The hydroforming machine according to claim 1 , further comprising another spacing device, one spacing device being positioned adjacent one edge of dies and another spacing device being positioned adjacent another edge of dies.
7. The hydroforming machine according to claim 2 , wherein the spacer bar has a substantially constant width along its length.
8. The hydroforming machine according to claim 2 , wherein the spacer bar has more than one size width along its length.
9. The hydroforming machine according to claim 2 , wherein the spacer bar is stepped.
10. The hydroforming machine according to claim 2 , wherein a cross section of the spacer bar at least one of circular and rectangular.
11. The hydroforming machine according to claim 3 , wherein the spacing device further includes a plurality of spacers, each spacer being positionable adjacent an outer hinge pin.
12. The hydroforming machine according to claim 3 , wherein the spacing device further includes a plurality of spacers, at least a portion of each spacer being positionable between an outer hinge pin and an inner hinge pin.
13. The hydroforming machine according to claim 11 , wherein the spacers are discs.
14. The hydroforming machine according to claim 1 , wherein the locking mechanism includes a lock shuttle being slidable between a first position where the lock shuttle engages an upper lock aperture disposed in at least an upper die plate or a lower lock aperture disposed in at least a lower die plate and a second position where the lock shuttle engages the upper lock aperture and the lower lock aperture.
15. The hydroforming machine according to claim 14 , wherein the upper lock aperture includes a lower surface which is titled downward towards the lower lock aperture at an angle α, wherein α is in the range of about 0.5 degrees to about 5 degrees.
16. The hydroforming machine according to claim 14 , wherein the lock shuttle is removable.
17. A hydroforming machine, comprising:
a plurality of dies, each die including an upper die plate hingedly moveable with respect to a lower die plate between an open position where upper die plate is in a spaced relation with lower die plate and a closed position where upper die plate is approximated with lower die plate;
a spacing device disposed in mechanical cooperation with the plurality of dies for maintaining a desired distance between adjacent dies; and
wherein the distance between adjacent dies is adjustable while the upper die plates are in the open position, the closed position and any position therebetween.
18. The hydroforming machine according to claim 17 , wherein the spacing device includes a plurality of hinges which hingedly connect each die with an adjacent die
19. The hydroforming machine according to claim 18 , wherein each of the plurality of hinges comprises an inner hinge pin, an outer hinge pin and a linkage including a first opening for receiving the inner hinge pin and a second opening for receiving the outer hinge pin.
20. The hydroforming machine according to claim 19 , wherein the spacing device includes a spacer bar which is positionable between at least one inner hinge pin and at least one outer hinge pin.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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US11/438,888 US20060260374A1 (en) | 2005-05-23 | 2006-05-23 | Hydroforming machine |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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US68365805P | 2005-05-23 | 2005-05-23 | |
US11/438,888 US20060260374A1 (en) | 2005-05-23 | 2006-05-23 | Hydroforming machine |
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US20060260374A1 true US20060260374A1 (en) | 2006-11-23 |
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ID=37447060
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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US11/438,888 Abandoned US20060260374A1 (en) | 2005-05-23 | 2006-05-23 | Hydroforming machine |
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102310135A (en) * | 2011-09-05 | 2012-01-11 | 沈阳黎明航空发动机(集团)有限责任公司 | Process device for high-pressure formation in turbine blade diversion pipe |
JP2016128192A (en) * | 2011-07-15 | 2016-07-14 | 株式会社昭和螺旋管製作所 | Metal bellows molding method for bulge processing, and metal bellows molding apparatus |
CN117066370A (en) * | 2023-10-16 | 2023-11-17 | 江苏贺邦科技有限公司 | Unmanned car apron forming die |
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Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2016128192A (en) * | 2011-07-15 | 2016-07-14 | 株式会社昭和螺旋管製作所 | Metal bellows molding method for bulge processing, and metal bellows molding apparatus |
CN102310135A (en) * | 2011-09-05 | 2012-01-11 | 沈阳黎明航空发动机(集团)有限责任公司 | Process device for high-pressure formation in turbine blade diversion pipe |
CN117066370A (en) * | 2023-10-16 | 2023-11-17 | 江苏贺邦科技有限公司 | Unmanned car apron forming die |
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