CS258718B1 - Pipe bending equipment - Google Patents
Pipe bending equipment Download PDFInfo
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- CS258718B1 CS258718B1 CS864202A CS420286A CS258718B1 CS 258718 B1 CS258718 B1 CS 258718B1 CS 864202 A CS864202 A CS 864202A CS 420286 A CS420286 A CS 420286A CS 258718 B1 CS258718 B1 CS 258718B1
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- tube
- spring
- bending
- holder
- helical spring
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- Bending Of Plates, Rods, And Pipes (AREA)
Abstract
Zariadenie pre ohýbanie rúriek je vhodné pre ohýbanie rúriek hlavně kovových tenkostenných a rúriek z plastických látok jednoduchým a rýchlym spósobom pri použití menšieho počtu adaptérov pre rózne priemery ohýbaných rúriek. Funkcia zariadenia spočívá v tom, že skrutkovicová pružina opatřená na obidvoch koncoch držiakmi s puzdrami sa navlečie na rúrku do miesta budúceho ohybu rúrky. Otáčaním ramena s držlakom pravého konca pružiny v zmysle vinutia pružiny okolo osi rúrky a pružiny v potrebnom rozsahu otáčok dosiahne sa zovretie rúrky pružinou pri nehybnom držiaku. Následným ohnutím rúrky a pružiny okolo třňa vykoná sa neelastický ohyb rúrky. Aby sa dosiahlo optimálneho zovretia rúrky pružinou nie je skrutkovicová pružina vo voínom stave válcovitého tvaru, ale má plynule premenlivé priemery jednotlivých závitov.The tube bending device is suitable for bending mainly thin-walled metal tubes and plastic tubes in a simple and fast way using a smaller number of adapters for different diameters of bent tubes. The function of the device is that a helical spring equipped with holders with sleeves at both ends is threaded onto the tube to the place of the future tube bend. By rotating the arm with the holder of the right end of the spring in the sense of winding the spring around the axis of the tube and the spring in the required range of revolutions, the tube is clamped by the spring with a stationary holder. By subsequently bending the tube and the spring around the mandrel, an inelastic bending of the tube is performed. In order to achieve optimal clamping of the tube by the spring, the helical spring is not cylindrical in its free state, but has continuously variable diameters of individual turns.
Description
Vynález rieši zariadenie pre ohýbanie rúriek kruhového prierezu z kovu aj plastických látok.The invention provides a device for bending round tubes of metal and plastic.
Doposial' známe zariadenia pre ohýbanie rúriek musia ,mať pre každý priemer rúrky rozměrové ϊηθ adaptéry, aby sa zabránilo splošteniu rúrky v mieste ohybu. Tenkostenné rúrky sa musia ohýbat za tepla a před ohybom sa musia obyčajne plnit suchým píeskom proti splošteniu, pričom je to postup značné prácny. Rúrky z plastických látek sa ohýbajú za: tepla tak, že sa do ich vnútorného priemeru vklade jú válcové skrutkovicové pružiny do miesta budúceho ohybu a po ohnutí sa vyberajú. Vyberanie pružin je niekedy obtiažne a ohyby sú nekvalitně.Hitherto known tube bending devices must have dimensional θηθ adapters for each tube diameter to prevent flattening of the tube at the bend. Thin-walled tubes must be hot-bent and must be filled with a dry flattening pad prior to bending, a considerable laborious procedure. Pipes from plastic materials are bent for: heat so that in their inner diameter retain it cylindrical helical springs into place next bend after bend are selected. Removing springs is sometimes difficult and bends are poor.
Vyššie uvedené nedostatky odstraňuje zariadenie pre ohýbanie rúriek podlá vynálezu, ktorého podstatou je, že skrutkovicová pružina opatřená na obidvoch koncoch držiakmi sa navlieka na vonkajší priemer rúrky do miesta budúceho ohybu. Otáčaním jedného konca pružiny s držiakom, okolo osi pružiny a rúrky v zmysle vinutia pružiny sa dosiahne potřebného zovretia rúrky pružinou, u ktorej sa zvačší počet závitov a zmenší priemer. Druhý držiak pružiny je pri úkone nehybný. Rúrku je potom možné v mieste zovretia pružinou ohnúť okolo třňa, ktorého povrch může mať rozny tvar.The above-mentioned drawbacks are overcome by the tube bending apparatus according to the invention, which is based on the fact that a helical spring provided with holders at both ends is threaded to the outer diameter of the tube at the point of future bending. By rotating one end of the spring with the bracket about the axis of the spring and the tube in the sense of the spring winding, the necessary spring clamping of the tube is achieved, which increases the number of turns and reduces the diameter. The second spring holder is stationary during operation. The tube can then be bent around the mandrel at the point of spring clamping, the surface of which may have different shapes.
Zariadenie pre ohýbanie rúriek podlá vynálezu je velmi jednoduché, s výhodou sa může používat ako přenosné pri různých montážnych prácach. Vyžaduje menší počet adaptérov pre různé priemery rúriek, pretože rozsah zovretia může byť velký. Pracnost je nižšia a možno vyhotovit různé tvary ohybov. Ohyby sú kvalitně.The pipe bending apparatus according to the invention is very simple, and can advantageously be used as portable in various assembly work. It requires fewer adapters for different pipe diameters, as the clamping range can be large. The labor intensity is lower and different bends can be produced. The bends are good.
Princip zariadenia pre ohýbanie rúriek podía vynálezu je znázorněný na priloženom výkrese, kde na obr. 1 je poloha zariadenia po navlečení na rúrku a na obr. 2 je poloha zariadenia po zovretí rúrky skrutkovicovou pružinou před ohnutím.The principle of the tube bending apparatus according to the invention is shown in the accompanying drawing. 1 is the position of the device after threading on the tube; and FIG. 2 is the position of the device after clamping the tube by a helical spring before bending.
Na obr. 1 je 1'avé puzdro 2 opatřené držiakom 4, v ktorom je uchytený 1'avý koniec 3 skrutkovicovej pružiny 5. Otáčaním ramena 7 s držiakom 6 pravého konca pružiny 5 v zmysle vinutia pružiny 5 okolo osi rúrky 1 aj pružiny 5 v potrebnom rozsahu otáčiek v puzdre 8, dosiahne sa optimálně zovretie rúrky 1 pružinou 5 pri nehybnom držiaku 4. Aby zovretie rúrky 1 bolo po celej dížke optimálně nie je skrutkovicová pružina 5 v stave volnom válcovitého tvaru, ale má plynule premenlivé priemery jednotlivých závitov. Na obr. 1 je znázorněný tvar komolého kužela. Na obr. 2 je stav před ohnutím rúrky 1 okolo třňa 9. Uloženie puzdier 2 a 8 může mať velkú vůlu alebo může byť vyhotovené ako delená vložka.In FIG. 1, the left-hand sleeve 2 is provided with a holder 4 in which the left-hand end 3 of the helical spring 5 is retained. By rotating the arm 7 with the right-hand spring holder 6 in terms of winding the spring 5 about the axis of the tube 1 and the spring 5 In the housing 8, the spring 1 is optimally clamped by the spring 5 at the stationary holder 4. In order to clamp the pipe 1 over the entire length optimally the helical spring 5 is not in a cylindrical free state but has continuously variable diameters of the individual turns. In FIG. 1 shows the shape of a truncated cone. In FIG. 2 is a condition before the tube 1 is bent around the mandrel 9. The housing of the sleeves 2 and 8 may have a large clearance or be a split insert.
Claims (2)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CS864202A CS258718B1 (en) | 1986-06-09 | 1986-06-09 | Pipe bending equipment |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CS864202A CS258718B1 (en) | 1986-06-09 | 1986-06-09 | Pipe bending equipment |
Publications (2)
Publication Number | Publication Date |
---|---|
CS420286A1 CS420286A1 (en) | 1987-12-17 |
CS258718B1 true CS258718B1 (en) | 1988-09-16 |
Family
ID=5384228
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CS864202A CS258718B1 (en) | 1986-06-09 | 1986-06-09 | Pipe bending equipment |
Country Status (1)
Country | Link |
---|---|
CS (1) | CS258718B1 (en) |
-
1986
- 1986-06-09 CS CS864202A patent/CS258718B1/en unknown
Also Published As
Publication number | Publication date |
---|---|
CS420286A1 (en) | 1987-12-17 |
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