WO2013134795A1 - Appareil de fabrication de cylindres - Google Patents

Appareil de fabrication de cylindres Download PDF

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Publication number
WO2013134795A1
WO2013134795A1 PCT/AM2013/000002 AM2013000002W WO2013134795A1 WO 2013134795 A1 WO2013134795 A1 WO 2013134795A1 AM 2013000002 W AM2013000002 W AM 2013000002W WO 2013134795 A1 WO2013134795 A1 WO 2013134795A1
Authority
WO
WIPO (PCT)
Prior art keywords
cylinder
attached
making apparatus
support
loading
Prior art date
Application number
PCT/AM2013/000002
Other languages
English (en)
Inventor
Mekhak GABRIELYAN
Husik MARGARYAN
Rafayel ASATURYAN
Valeri SIMONYAN
Original Assignee
Gabrielyan Mekhak
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Gabrielyan Mekhak filed Critical Gabrielyan Mekhak
Publication of WO2013134795A1 publication Critical patent/WO2013134795A1/fr

Links

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
    • B21D51/00—Making hollow objects
    • B21D51/16—Making hollow objects characterised by the use of the objects
    • B21D51/24—Making hollow objects characterised by the use of the objects high-pressure containers, e.g. boilers, bottles
    • 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
    • B21D22/00—Shaping without cutting, by stamping, spinning, or deep-drawing
    • B21D22/14—Spinning
    • 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
    • B21D22/00—Shaping without cutting, by stamping, spinning, or deep-drawing
    • B21D22/14—Spinning
    • B21D22/16—Spinning over shaping mandrels or formers

Definitions

  • the present disclosure relates generally to devices for producing pressure cylinders and, more particularly, devices for producing pressure cylinders by means of roll bending.
  • the closest analogue to the present invention is the cylinder-making apparatus as disclosed in Patent RU 2048945 CI (B21D 51/24, 1993.07.08) that has a support, workpiece loading, compression, roll bending and end product ejection mechanisms successively set on the support and a heating unit in the form of a circular inductor, while the roll bending mechanism has kinematically attached shaping and holding pulley mechanisms.
  • the shaping device needs to perform multiple passages while making a cylinder
  • the present invention has been developed in response to the present state of the art, and in particular, in response to the problems and needs in the art that have not yet been fully solved by currently available devices for producing pressure cylinders.
  • the present invention seeks to enhance the productivity and reliability of a device for producing pressure cylinders and reduce the manufacturing costs.
  • the cylinder-making apparatus disclosed herein comprises a support, loading, compression, roll bending and ejection mechanisms successively set on the support and a heating unit in the form of a circular inductor, wherein the apparatus further includes an electronic control system for performance management of the apparatus and mechanisms and a second heating unit for maintaining the workpiece temperature during the shaping of a cylinder,
  • the loading mechanism comprises a frame and a sliding mechanism moveably attached to the frame, the sliding mechanism has a drive
  • the compression mechanism comprises a five-jaw chuck with compressing jaws operated through a wedge-shaped mechanism
  • the roll bending mechanism has a shaping device fixed onto a block rocking against the workpiece and mounted on the support of the apparatus.
  • a second feature of the present invention is that the sliding mechanism of the loading mechanism comprises a dovetail linear guide which is set asymmetrically to the vertical plane; furthermore, its left plane is set against the horizontal plane at a smaller angle than the right side.
  • a third feature of the present invention is that the loading mechanism comprises rolling bearings for transforming sliding friction into rolling friction which are mounted on the left plane of the dovetail linear guide.
  • a fourth feature of the present invention is that the drive of the sliding mechanism of the loading mechanism comprises a hydraulic motor attached to the sliding mechanism, a reduction gear and a rack and pinion mechanism, wherein the input shaft of the reduction gear is attached to the axle of the hydraulic motor, the gear of the rack and pinion mechanism is attached to the output shaft of the reduction gear and the rack and pinion mechanism is attached to the frame of the loading mechanism.
  • a fifth feature of the present invention is that the wedges of the wedge-shaped mechanism operating the compressing jaws of the five-jaw chuck are implemented at a ten- degree angle.
  • a sixth feature of the present invention is that the five-jaw chuck of the compression mechanism comprises self-centric spherical jaws.
  • a seventh and the last feature of the present invention is that the second heating unit comprises a moveable block turnably attached to the support, a gas burner fixed on the moveable block, an electromotor and a power screw transmission, wherein the electromotor is turnably attached to the support, the screw of the power screw transmission is attached to the axle of the electromotor while the nut is turnably attached to the moveable block.
  • FIG. 1 illustrates a front schematic view of one embodiment of a cylinder-making apparatus in accordance with the present invention
  • FIG. 2 provides a top schematic view of one embodiment of a cylinder-making apparatus in accordance with the present invention
  • FIG. 3 shows a front schematic view of one embodiment of the workpiece loading mechanism of the cylinder-making apparatus in accordance with the present invention
  • FIG. 4 provides a top schematic view of the workpiece loading mechanism of one embodiment of the cylinder-making apparatus in accordance with the present invention
  • FIG. 5 shows a side schematic view of the loading mechanism of one embodiment of the cylinder-making apparatus in accordance with the present invention
  • FIG. 6 provides a schematic view of a five-jaw chuck of the compression mechanism of one embodiment of the cylinder-making apparatus in accordance with the present invention
  • FIG. 7 shows a cross-sectional view of a five-jaw chuck of the compression mechanism of one embodiment of the cylinder-making apparatus in accordance with the present invention
  • FIG. 8 illustrates a schematic view of the second heating unit of one embodiment of the cylinder- making apparatus in accordance with the present invention.
  • the cylinder-making apparatus disclosed herein comprises a support 1, a workpiece loading mechanism 2, a compression mechanism 3, a roll bending mechanism 4 and an end product ejection mechanism 5 successively set on the support 1 and a heating unit 6 in the form of a circular inductor, as can be seen in FIGS. 1 and 2.
  • the apparatus further includes a second heating unit 7 for maintaining the workpiece temperature during the shaping of a cylinder and an electronic control system 8 for performance management of the apparatus and mechanisms.
  • the loading mechanism 2 is intended to transfer the workpiece, which has already been heated to a temperature necessary for roll bending in the heating unit 6, to the compression mechanism 3.
  • the loading mechanism 2 comprises a frame 9 upon which a sliding mechanism 10 is moveably attached, as illustrated in FIGS 4 and 5.
  • the sliding mechanism 10 has a drive which comprises a hydraulic motor 1 1 and a reduction gear 12.
  • the gear 13 which is attached to the output shaft of the reduction gear 12, and the rack and pinion mechanism 14 which is attached to the frame 9, form a rack and pinion mechanism and enable the movement of the sliding mechanism 10 along the frame 9.
  • a dovetail linear guide 15, intended for ensuring the initial alignment of the workpiece with the compression mechanism 3, is set on the frame 9.
  • a pneumocylinder 16 is mounted at the end of the sliding mechanism 10 by means of which the final alignment of the workpiece within the compression mechanism 3 is done.
  • the workpiece is adjusted within the compression mechanism 3 in two stages.
  • the first stage the workpiece is transferred to the compression mechanism 3 by means of the sliding mechanism 10, the hydraulic motor 1 1, the reduction gear 12, the gear 13 and the rack and pinion mechanism 14.
  • the second stage the workpiece is set into the compression mechanism 3 by means of the pneumocylinder 16.
  • Rolling bearings 17 are mounted on the left plane of the dovetail linear guide 15 which are intended for transformation of sliding friction between the workpiece and the dovetail linear guide 15 into rolling friction.
  • the compression mechanism 3 comprises a hydrocylinder 18 to the piston shaft of which a tube-shaped linear guide 19 is attached (FIG. 7).
  • Driving wedges 20 are set on the end of the tube-shaped linear guide 19 and convey the movement of the piston shaft of the hydrocylinder 18 to the compressing jaws 23 of the five-jaw chuck 22 mounted on the axis 21 of the cylinder- making apparatus.
  • driven wedges 24 are designed on the edges of the compressing jaws 23. Both driving 20 and driven 24 wedges are implemented at a ten-degree wedging angle which is close to their friction angle.
  • Such a selection of a wedging angle degree enables transmission of the movement from the driving 20 to the driven wedges 24, and subsequently to the compressing jaws 23 of the five-jaw chuck 22, while preventing transmission of the countermovement from the driven 24 to the driving wedges 20.
  • Coupling elements 25 are designed on the ends of the compressing jaws 23 which form self-centric spherical couples together with compressing jaws 23.
  • the compression mechanism 3 comprises an axis drive 26 to transmit rotation to the axis 21.
  • the roll bending mechanism 4 comprises a block 27 turnably mounted on the support 1 of the apparatus and a shaping device 28 is fixed onto the block 27, as illustrated in FIGS. 1 and 2.
  • the roll bending mechanism 4 further comprises a hydrocylinder 29 to enable the block 27 and the shaping device 28 to turn relative to the support 1.
  • the frame of the hydrocylinder 29 is turnably mounted on the support 1 while the piston shaft is turnably attached to the block 27.
  • the roll bending mechanism 4 also includes a regulator valve to regulate the speed of movement of the shaping device 28 while a workpiece is being shaped.
  • the end product ejection mechanism 5 comprises a pneumocylinder 30 (FIG. 1) by means of which the end product is transferred from the five-jaw chuck 22 onto the dovetail linear guide 15 and then is removed from the cylinder-making apparatus.
  • the second heating unit 7 is arranged on the support 1, adjacent to the workpiece shaping sector, and is intended for maintaining the temperature of the workpiece area to be roll-bent at the required level during the shaping of a cylinder.
  • the second heating unit 7 comprises a moveable block 31 to which a gas burner 32 is fixed.
  • the nut 33 is also turnably mounted on the moveable block 31 (FIG. 8).
  • An electromotor 34 is turnably attached to the support 1 and a screw 36 is attached to the shaft of the electromotor 34 by means of a socket 35.
  • the screw 36 and the nut 33 form a power screw transmission.
  • the electromotor 34, the moveable block 31 and the power screw transmission form a four bar mechanism.
  • the cylinder-making apparatus works in the following way.
  • the workpiece is pre-heated to a temperature necessary for roll bending in the heating unit 6 and transferred onto the dovetail linear guide 15 of the loading mechanism 2, as can be seen in FIGS. 1 and 2.
  • the hydraulic motor 1 1 is turned on and the movement is transmitted to the gear 13 by means of the reduction gear 12.
  • the gear 13 starts to move along the rack and pinion mechanism 14 attached to the frame 9, simultaneously transferring the sliding mechanism 10, which in its turn slides the workpiece on the dovetail linear guide 15.
  • the hydraulic motor 1 1 is turned off and the pneumocylinder 16 attached to the sliding mechanism 10 is turned on.
  • the pneumocylinder 16 transfers the workpiece into the five-jaw chuck 22 by means of the piston shaft.
  • the two-stage operation of the loading mechanism 2 ensures a smooth and shock- free transfer for the workpiece.
  • the hydrocy Under 18 of the compression mechanism 3 is turned on.
  • the piston shaft of the hydrocylinder 18 moves codirectionally, simultaneously moving the tube-shaped linear guide 19 and the driving wedges 20 (FIG. 7).
  • the compressing jaws 23 close around the workpiece by means of the driven wedges 24 implemented on their edges.
  • the workpiece is compressed within the five-jaw chuck 22 by means of the coupling elements 25.
  • the illustrated quantity of the compressing jaws 23 of the five-jaw chuck 22 is proposed due to the force needed to compress the workpiece, while spherical couples designed between the coupling elements 25 and the compressing jaws 23 ensure the radial direction of the compression force.
  • the drive 26 of the axis 21 is turned on and transmits rotation to the axis 21 and the workpiece compressed within the five-jaw chuck 22, as illustrated in FIGS. 1 and 2. While the axis 21 rotates, the following processes occur in the mechanisms of the cylinder-making apparatus:
  • the roll bending mechanism 4 is operated after the necessary temperature is achieved on the workpiece area to be roll-bent.
  • the hydrocylinder 29 transmits a rocking movement to the shaping device 28 and the rate of such movement is regulated by the regulator valve. It should be noted that roll bending process is complete with a single passage of the shaping device 28.
  • the gas burner 32 continues to burn during the shaping of a cylinder, with the operation of the electromotor 34 executing a turn together with the moveable block 31 by means of the screw 36 and the nut 33 and following the relief of the workpiece area to be roll-bent (FIG. 8).
  • the shaping device 28 After the shaping process is complete, the shaping device 28 returns to its starting position by means of the hydrocylinder 29.
  • the gas burner 32 is turned off and returned to its starting position by means of the electromotor 34 (FIG. 8). Due to the reverse movement of the piston shaft of the hydrocylinder 18, the tube-shaped linear guide 19, the driving 20 and the driven wedges 24, the compression force between the workpiece and the compressing jaws 23 is released.
  • the end product is transferred onto the dovetail linear guide 15 by means of the pneumocylinder 30 of the ejection mechanism 5 and removed from the cylinder-making apparatus.
  • An increase in the efficiency of the apparatus is ensured by forming a cylinder with a single passage of the shaping device and further heating of the area to be roll-bent during the shaping of a cylinder.
  • the reliability of the apparatus is further enhanced through new structures of workpiece loading and compression mechanisms.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)
  • Forging (AREA)

Abstract

L'invention porte sur un appareil destiné à produire des cylindres à pression, qui comprend un support (1), des mécanismes de chargement (2), de compression (3), de roulage (4) et d'éjection (5) montés les uns à la suite des autres sur le support (1), une unité de chauffage (6) sous la forme d'un inducteur circulaire, un système de commande électronique (8) pour la gestion de performance et une seconde unité de chauffage (7) destinée à maintenir la température de la pièce pendant le façonnage d'un cylindre. Le mécanisme de chargement (2) comprend un châssis (9) et un mécanisme coulissant (10) attaché de façon mobile au châssis (9), le mécanisme coulissant (10) ayant un entraînement (11, 12). Le mécanisme de compression (3) comprend un mandrin à cinq mâchoires (22) comprenant des mâchoires de compression (23) actionnées par l'intermédiaire d'un mécanisme en forme de coin (20). Le mécanisme de roulage (4) comporte un dispositif de façonnage (28) fixé sur un bloc (27) qui oscille contre la pièce et est monté sur le support (1) de l'appareil. La productivité et la fiabilité d'un dispositif pour produire des cylindres à pression sont améliorées et les coûts de fabrication sont réduits.
PCT/AM2013/000002 2012-03-13 2013-03-07 Appareil de fabrication de cylindres WO2013134795A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AMAM20120042 2012-03-13
AM20120042 2012-03-13

Publications (1)

Publication Number Publication Date
WO2013134795A1 true WO2013134795A1 (fr) 2013-09-19

Family

ID=48142571

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/AM2013/000002 WO2013134795A1 (fr) 2012-03-13 2013-03-07 Appareil de fabrication de cylindres

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WO (1) WO2013134795A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104084503A (zh) * 2014-05-30 2014-10-08 江苏尚诚精密模具科技有限公司 一种自动折边扣模一体机

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3793863A (en) * 1971-07-09 1974-02-26 D Groppini Device for the manufacture of metal cylinders
EP0081700A1 (fr) * 1981-11-20 1983-06-22 Air Products And Chemicals, Inc. Formage par emboutissage
DE4318754A1 (de) * 1993-06-05 1994-12-08 Hahn Industrieprodukte Gmbh Verfahren zum Fertigen eines Bodens an einem Flaschenrohling
RU2048945C1 (ru) 1993-07-08 1995-11-27 Государственное научно-производственное предприятие "Сплав" Установка для изготовления баллонов

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3793863A (en) * 1971-07-09 1974-02-26 D Groppini Device for the manufacture of metal cylinders
EP0081700A1 (fr) * 1981-11-20 1983-06-22 Air Products And Chemicals, Inc. Formage par emboutissage
DE4318754A1 (de) * 1993-06-05 1994-12-08 Hahn Industrieprodukte Gmbh Verfahren zum Fertigen eines Bodens an einem Flaschenrohling
RU2048945C1 (ru) 1993-07-08 1995-11-27 Государственное научно-производственное предприятие "Сплав" Установка для изготовления баллонов

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104084503A (zh) * 2014-05-30 2014-10-08 江苏尚诚精密模具科技有限公司 一种自动折边扣模一体机

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