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WO2020257904A1 - Équipement et procédé de fabrication d'axe de véhicule, et axe de véhicule - Google Patents

Équipement et procédé de fabrication d'axe de véhicule, et axe de véhicule Download PDF

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Publication number
WO2020257904A1
WO2020257904A1 PCT/BR2020/050231 BR2020050231W WO2020257904A1 WO 2020257904 A1 WO2020257904 A1 WO 2020257904A1 BR 2020050231 W BR2020050231 W BR 2020050231W WO 2020257904 A1 WO2020257904 A1 WO 2020257904A1
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WO
WIPO (PCT)
Prior art keywords
plate
cylinder
equipment
vehicle
manufacturing
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.)
Ceased
Application number
PCT/BR2020/050231
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English (en)
Portuguese (pt)
Inventor
Rodrigo MALACARNE
Leandro PASQUALOTTO
Eduardo CARRARO
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Randon SA Implementos E Participacoes
Original Assignee
Randon SA Implementos E Participacoes
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 Randon SA Implementos E Participacoes filed Critical Randon SA Implementos E Participacoes
Publication of WO2020257904A1 publication Critical patent/WO2020257904A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES, PROFILES OR LIKE SEMI-MANUFACTURED PRODUCTS OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C37/00—Manufacture of metal sheets, rods, wire, tubes, profiles or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
    • B21C37/06—Manufacture of metal sheets, rods, wire, tubes, profiles or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes
    • B21C37/08—Making tubes with welded or soldered seams
    • 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
    • B21D22/02—Stamping using rigid devices or tools
    • 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
    • B21D5/00—Bending sheet metal along straight lines, e.g. to form simple curves

Definitions

  • the present invention describes a solution to the various difficulties of producing vehicle axles by means of flat plates, where the solution of the present invention comprises a vehicle axle manufacturing equipment that allows the manufacture of cylinders from thick plate homogeneous and circular cross section, a manufacturing process for cylinders from sheet metal for vehicle axles and a vehicle axle made from sheet metal, more specifically in the fields of mechanical forming, commercial vehicles, cargo transport vehicles, road implements, engineering mechanics and industrial production.
  • Vehicle axles must be capable of production according to demand and with a high degree of reliability, being one of the fundamental components of a vehicle, responsible for sustaining severe loads and multidirectional efforts during its use.
  • the document JP2003053455 presents a process and equipment for manufacturing tubes from sheet metal by stamping by making use of a cylindrical core that remains internal to the part and a lower matrix, where these promote a pre-molding of the U-sheet. Then, an upper matrix prints the plate in the cylindrical geometry and its close or in contact ends are then welded to form a tube.
  • the tube resulting from the process of this document JP2003053455 comprises a very small diameter and thickness, where its diameter / thickness ratio is around 100. In this way, JP2003053455 is intended for the manufacture of small diameter tubes, such as pipes, not allowing the manufacture of tubes from sheets of greater thickness, such as tubes with a diameter / thickness ratio less than or equal to 50.
  • the document US2013186165 presents an equipment for serial production of tubes from sheets, where the equipment is divided into two regions, the first region comprising a punch that promotes a folding of the U-plate when it is moved against the part bottom of the die and, in the second region, the part is U-shaped from the first region and receives a cylindrical male in its interior, then the conformation of the part in a cylindrical shape is promoted.
  • the tube manufactured through the document US2013186165 is of small diameter, not allowing to reach the solution for manufacturing tubes from sheets of greater thickness, such as tubes with a diameter / thickness ratio less than or equal to 50.
  • US2013186165 performs the positioning of the male in a radial manner, which takes longer to the process than the axial positioning proposed by the present invention.
  • the document CN102205372 presents a machine for manufacturing tubes from sheet metal by means of stamping, where the sheet is inserted into the machine, the movable part of its matrix moves against the sheet, forming it around a cylindrical male, promoting its pre-fold. Then, this whole set moves to the fixed part of the die, thus forming the piece in a cylindrical shape. The cylindrical male is rotated by means of a motor to homogenize the formed tube.
  • the CN102205372 document machine does not have a solution for manufacturing tubes with a thickness / diameter ratio less than or equal to 50, making it impossible to manufacture due to the efforts involved in this process and, even if possible, the low durability of the tool would make the process financially unfeasible.
  • Document US6782921 presents a process for manufacturing cylinders from sheet metal, following a series of pre-bending steps such as: the sheet being folded in C, then the part in C being folded in U, the part in U be bent in O, its ends close or in contact are welded to form the tube and then, finally, the tube is expanded in order to homogenize the manufactured tube.
  • a series of pre-bending steps such as: the sheet being folded in C, then the part in C being folded in U, the part in U be bent in O, its ends close or in contact are welded to form the tube and then, finally, the tube is expanded in order to homogenize the manufactured tube.
  • Document W02020017955 presents a method of manufacturing a suspension axle for heavy vehicles from a stamped cylindrical tube made of sheet metal. This document W02020017955 describes a pre-bend in C, a final bend and welding of formed tabs. However, the solution presented by document W02020017955 has significant difficulty and high cost, since it demands considerable conformation in a long and thick plate edge, in addition to the internal welding that the state of the art equipment does not present sufficient quality in the weld for the app.
  • the present invention solves the problems of the state of the art from a vehicle axis made from plate, equipment and process for its manufacture, so that its geometry is designed and appropriate to support all the efforts of severe application of vehicle axles for commercial vehicles, in addition to the manufacturing process of said vehicle axle to allow fast and safe manufacturing with energy demand reduced, which results in increased efficiency in the manufacture of vehicle axles, in addition to geometric precision.
  • a male is associated inside the tube for modeling during stamping, so that the geometry of the tool used is designed according to the thickness and material of the plate, preventing distortion of the shaft geometry in function of the elasticity of the piece after the application of force by the equipment ceased during manufacture, resulting in homogeneity of the thickness of the cylinder and circular cross section, thus solving problems of the antecedents.
  • the present invention features a vehicle shaft manufacturing equipment from sheet metal comprising at least one stamping tool comprising: a first printing region; a second printing region; at least one modeling male; and at least one modeling male positioning device; wherein, the plate is positioned between the first region and the second printing region; the modeling male is positioned close to the plate by means of the device; at least one of the stamping regions is associated with at least one power supply equipment; and the first region and the second region are mobile relative to each other, in which at least one transfers a portion of energy to the plate.
  • the present invention presents a process for manufacturing a vehicle axle from a plate comprising at least the steps of: positioning at least one plate in a vehicle axle manufacturing equipment; at least one pre-molding of the plate by means of energy supply conducted by the vehicle axis manufacturing equipment, forming a pre-folded plate; association of at least one male to a pre-folded plate in an X direction; at least one stamping of the pre-folded sheet by means of energy supply conducted by the vehicle axis manufacturing equipment, forming a cylinder; removing at least one male from the inside of the cylinder; and withdrawal cylinder inside the vehicle axle manufacturing equipment.
  • the present invention features a vehicle axle comprising a cylinder manufactured from sheet metal using at least one vehicle axle manufacturing equipment from sheet metal and / or manufactured using an axle manufacturing process serve from sheet metal.
  • Figure 1 shows an embodiment of a stamping tool (10) of the vehicle axis manufacturing equipment of the present invention, where the device (12) is in a closed state and the first region (13) and the second are highlighted region (14) of the stamping tool (10).
  • Figure 2 shows an embodiment of the stamping tool (10) of the vehicle axle manufacturing equipment of the present invention, where the side devices (12) are in an open state and the taps (11) are shown for molding cylinder (15) from pre-folded sheet metal (16b), as well as the first region (13) and the second region (14) of the stamping tool (10).
  • Figure 3 shows an embodiment of the vehicle axle of the present invention, where the cylinder (15) from plate (16a) associated with a brake, suspension and wheels system is illustrated. It is worth mentioning that the tube manufactured by the present invention is applicable to several models of axes and can be associated with several components in addition to the one illustrated in figure 3.
  • Figure 4 shows an embodiment of the cylinder (15) from the metal sheet of the present invention after the steps of the manufacturing process of the present invention, including completion steps.
  • Figure 5 shows an embodiment of the preforming of the plate (16a) metallic, forming a plate with a cross section in the shape of a “C”.
  • Figure 6 shows an embodiment of the pre-folding of the pre-folded sheet (16b), where the pre-folded sheet (16b) has its ends folded and its base rounded, acquiring an approximate shape of a "U", preparing it for the stamping step of the present invention.
  • Figure 7 shows an embodiment of a backing positioning device of the present invention.
  • the present invention features a vehicle shaft manufacturing equipment from sheet metal comprising at least one stamping tool that comprises: a first printing region; a second printing region; at least one modeling male; and at least one modeling male positioning device; wherein, the plate is positioned between the first region and the second printing region; the modeling male is positioned close to the plate by means of the device; at least one of the stamping regions is associated with at least one power supply equipment; and the first region and the second region are mobile relative to each other in depending on the energy received from the power supply equipment, transferring at least a part of said energy to the plate.
  • the stamping regions (13), (14) and the tap (11) comprise roughness, ridges and cavities projected according to the material and the geometry of the plate (16a). Due to the thickness of the plate (16a) and the material of the same, the geometry of the tool of the present invention is designed in order to consider the elasticity of the material, so that after its manufacture, when the material undergoes a slight return due to its elasticity, the final geometry is the desired geometry, thanks to the combination of roughness, shoulders and cavities of the present invention.
  • the stamping tool (10) comprises two molding cores (11) and two lateral devices (12) positioned longitudinally opposite each other along the X direction, so that the lateral devices (12 ) move in the X direction, axial direction of the cylinder (15), moving the taps (11) axially into the stamping tool (10) or removing the taps (11) from the inside of the stamping tool (10).
  • the axial movement of the taps (11) of the present invention results in a great gain in productivity, reducing the time of execution of the process, being this one of the main characteristics that differentiates it from the antecedents, since the tap is positioned radially in the anteriorities.
  • the vehicle axle manufacturing equipment comprises two devices (12), where one device (12) comprises mobility and the other device (12) is inert.
  • the two devices (12) comprise mobility towards the X axis shown in figure 1.
  • the two devices (12) have an inert state.
  • the device (12) comprises positioning the male (11) on the equipment laterally. In another embodiment, the device (12) comprises positioning the male (11) in the equipment from the front and / or rear region. In an embodiment where a combination of devices (12) is used, the positioning of the male (11) is lateral. In an embodiment where a combination of devices (12) is used, the positioning of the male (11) is front and / or rear.
  • the plate (16a) comprises pre-molding by means of the energy transferred by the equipment of the present invention. After pre-molding, the core (11) is positioned axially inside the pre-folded sheet (16b).
  • the energy supply equipment is a press, where the press transfers energy to the tool of the present invention and this energy is transferred to the plate, applying pressure to it and promoting its mechanical conformation.
  • the stamping tool (10) of the vehicle shaft manufacturing equipment is associated with at least one press, where the first region (13) of the stamping tool (10) is associated with the press hammer and the second region (14) of the stamping tool (10) is associated with the press table.
  • the term axially positioned refers to the positioning of the male (11) in the direction of the axial axis of the plate (16b), that is, in the direction of the axial axis where the cylinder (15 ) and, later, the vehicular axis, this being the X direction illustrated in figures 1 and 2.
  • pre-molding is a preparation step that precedes the manufacture of a material by means of molding and comprises the molding of at least one metallic plate (16a) so that its ends are bent, facilitating the subsequent steps, reducing energy demand and tool wear.
  • the cylinder (15) resulting from the pre-folded plate (16b), manufactured by the equipment of the present invention comprises homogeneous thickness along its length, constant circular cross section along its length.
  • the cylinder (15) can only reach homogeneous thickness along its length and circular cross section thanks to the geometry and components of the equipment of the present invention.
  • the cylinder (15) manufactured by the present invention comprises a diameter / thickness ratio in a range between 1 to 50. In one embodiment, the diameter / thickness ratio of the cylinder (15) is a range between 1 to 30. In a embodiment, the diameter / thickness ratio of the cylinder (15) manufactured by the present invention is less than or equal to 20.
  • the combination of the geometry of the core (11) and the regions (13, 14) of the present invention, as well as the use of pre-bending and axial positioning of the tap (11) are the fundamental technical characteristics that allow the manufacture of a cylinder (15) with a low diameter / thickness ratio, such as a ratio less than or equal to 50.
  • homogeneous thickness describes an approximately constant thickness, so that it can present minor irregularities, which are inconsiderable, since they do not structurally or geometrically affect the vehicle axis of the present invention.
  • the thickness and the cross section of the axis of the present invention can be considered constant along its length.
  • the present invention presents a process of manufacturing a vehicle axis from plate (16a) comprising at least the steps of: positioning at least one plate (16a) in a vehicle axis manufacturing equipment ; at least one pre-molding of the plate (16a) by means of energy supply conducted by the vehicle axis manufacturing equipment; associating at least one male (11) with a pre-folded plate (16b) in an X direction; stamping of the pre-folded sheet (16b) by means of energy supply conducted by the vehicle axis manufacturing equipment, forming a cylinder (15); removing at least one male (11) from inside the cylinder (15); and removal of cylinder (15) from inside the vehicle axle manufacturing equipment.
  • the pre-molding step comprises at least two subsequent pre-molding steps, so that a flat plate (16a) is formed on a “C” plate; and conformation of a “C” plate into a pre-folded plate (16b) in a “U” shape.
  • the vehicle axle manufacturing process comprises at least one subsequent stage of cylinder completion (15).
  • the cylinder finalization step (15) comprises reinforcement by welding the sides close to or in contact with the cylinder (15).
  • the close or in contact sides of the cylinder (15) are defined as two opposite ends of the plate (16a), and after stamping the plate (16a) to form the cylinder (15), two ends are close or in contact and the two other ends remain opposite in the X direction.
  • welding is done by at least one weld bead.
  • the joining of the opposite ends of the welded folded sheet is made by a single weld bead.
  • the connection is made by two weld beads.
  • more than one weld bead is made in a single pass. The weld is not visible on the vehicle axis.
  • the stage of finalizing the cylinder (15) comprises at least one substep between: leveling the surface of the cylinder (15); sanding the cylinder (15); removal of impurities such as greases; and coating the cylinder (15) with paints and protective elements.
  • the weld bead is visually invisible, ensuring visual, commercial and functional advantages to the vehicle axis of the present invention.
  • the substep of removing excess weld through sanding is used for visual improvement, but mainly to provide adequate seating of other components that interface with the shaft, such as the brake and suspension.
  • the step of sanding the cylinder (15) comprises at least one process between machining, polishing, or any other mechanical process of removing excess weld.
  • the removal of impurities is done by electrolysis.
  • the coating of the cylindrical tube is carried out by means of paint.
  • the present invention features a vehicle axis comprising cylinder (15) manufactured from plate (16a) by means of at least one vehicle axis manufacturing equipment as defined above and / or by being manufactured through of a vehicle axle manufacturing process as defined above.
  • the axis of the present invention is manufactured by means of at least one vehicle axis manufacturing equipment from sheet (16a) comprising at least one stamping tool (10) comprising: a first region ( 13) stamping; a second embossing region (14); at least one modeling male (11); and at least one modeling positioning device (12) (11); wherein, the plate is positioned between the first stamping region (13) and the second stamping region (14); the molding male (11) is positioned close to the plate by means of the device (12); at least one of the stamping regions (13), (14) is associated with at least one power supply equipment; and the first region (13) and the second region (14) are mobile relative to each other depending on the energy received from the power supply equipment, transferring said energy to the plate (16a), in which the cylinder comprises thickness homogeneous along its length.
  • stamping tool 10 comprising: a first region ( 13) stamping; a second embossing region (14); at least one modeling male (11); and at least one modeling positioning device (12) (11);
  • the vehicle axle of the present invention comprises running system (corresponding to the wheel hub, brake drum, bearings, etc.) associated with the cylinder (15) and / or brake system associated with the cylinder (15) and / or suspension associated with the cylinder (15).
  • running system corresponding to the wheel hub, brake drum, bearings, etc.
  • the vehicle axis of the present invention comprises excellent mechanical properties such as, for example, fatigue resistance, long service life and has reduced production time and cost, thanks to the objects of the present invention.
  • the present invention presents a considerable number of technical improvements compared to the previous ones, for example: homogeneity of thickness along the length of the metallic cylinder and circular cross section, weight and cost of manufacture reduced in relation to to the antecedents, circumferential and longitudinal uniformity, reduction of investments in machinery necessary for manufacturing, allowing greater availability in the market at a lower price, in addition to its application for vehicle axles to allow the vehicle to carry more cargo, since the axle weight can be reduced compared to the antecedents.
  • a metal plate (16a) is used, where this plate (16a) is positioned in the vehicle axis manufacturing equipment as illustrated in figure 5, where said equipment is associated with a press.
  • the first stamping region (13) of at least one stamping tool (10) of the vehicle shaft manufacturing equipment is associated with the press hammer and the second stamping region (14) is associated with the press table.
  • the press transfers energy by applying pressure on the plate (16a) against the table, causing the ends of the plate (16a) to be bent, so that the plate (16a) comprises the “C” shape and then the next stage of molding, from which pressure is applied by the press through the first and second parts (13), (14), making the “C” plate have its rounded base, as shown in figure 6, acquiring the shape of the pre-folded plate ( 16b) “U” shape.
  • two molding cores (1 1) are positioned by moving two lateral devices (12) along the X direction, changing from the open position, as shown in figure 2, to the closed position, as shown in figure 1.
  • the upper part (13) is moved towards the lower part (14), leading to the pre-folded plate (16b) pressure originating from the press and shaping it.
  • the pre-folded plate (16b) takes on the shape of a folded plate.
  • the pressure is then removed and the taps (11) are then removed by means of the lateral devices (12), so that the elasticity of the plate material (16a) causes the folded plate to deform, resulting in the geometry of the cylinder (15), after which the cylinder (15) of the vehicle axis manufacturing equipment is removed.
  • the cylinder geometry (15) only acquires homogeneous thickness along its longitudinal length and circular cross section thanks to the geometry projected for the upper (13) and lower (14) parts and for the male (1 1), which compensate for the elasticity of the plate material (12a).
  • a cylinder (15) with sides that are close to or in contact, but not permanently joined, is used.
  • the permanent joining of the close or in contact sides of a cylinder (15) is carried out by means of welding.
  • the cylinder (15) used can be manufactured by the above-mentioned steps or not, as well as an equipment as described above or not. The origin of the cylinder (15) does not interfere with the satisfactory welding result of the present invention.
  • a backing is then positioned inside the cylinder (15) by means of a backing positioning device, as illustrated in figure 7, so that the backing is positioned on the device and then the device is inserted inside the tube.
  • a device mechanism allows its expansion, so that the backing remains pressed against the inside of the cylinder (15), in the region of the chamfer.
  • the sides of the cylinder (15) are welded by a MIG / MAG pass with a double torch, permanently joining the sides that are close to or in contact with the cylinder (15).
  • the cylinder (15) is welded by a welding station with a single weld bead, coming from a single passage of the assembly with two torches aligned in sequence.
  • the cylinder (15) is finished, leveling the excess weld with the surface of the cylinder (15), sanding the cylindrical (15) and cleaning, making its shape with homogeneous thickness along its longitudinal length and circular cross section that can be considered constant, as shown in figure 4.
  • the cylinder (15) is then associated with brake systems, running system, suspension, among others, as shown in figure 3, allowing its use on vehicle axles of commercial vehicles, such as road implements.
  • Example 3 Completion of vehicle axis with joint follower
  • a joint follower is implemented in order to make the torches vary the welding parameters adapting them to the dimensional variations of the chamfer, thus guaranteeing the quality of the weld, where this joint follower it comprises an electronic device that operates next to the first torch and / or next to the second and / or both torches at the welding station and reads the chamfer dimensions immediately before welding, along the entire length of the pipe.
  • this joint follower comprises an electronic device that operates next to the first torch and / or next to the second and / or both torches at the welding station and reads the chamfer dimensions immediately before welding, along the entire length of the pipe.
  • the control system of the joint follower is designed in order to guarantee the weld always aligned with the chamfer, with sufficient amount of addition metal, with adequate fusion, among other welding parameters.
  • the vehicle axles whose chamfer is measured and identified as being outside the acceptable standards, the cylinder (15) is scrapped without welding, promoting gains in expenses with raw materials.
  • the process can be summarized as: conforms to “C” then to “U”, then to “O”, position the backing on the backing device, insert the device with the backing inside the “O” , perform the welding (this corresponds to a single operation, where the follower reads the dimensions of the chamfer, the first torch makes a pass and the second torch makes another pass, but a single pass of the set is performed. Then, it is removed the backing device inside the now tube (the backing is inside the tube, because it is soldered.
  • the cylinder (15) is welded by a welding station with a single weld bead. Then, the cylinder (15) is finished, leveling the excess weld with the surface of the cylinder (15), sanding the cylindrical (15) and cleaning, making its shape with homogeneous thickness along its longitudinal length and circular cross section, as illustrated in figure 4.
  • the cylinder (15) can then be associated with brake systems, wheels, suspension, among others, for use on vehicle axles, as illustrated in figure 3.
  • Example 4 Vehicle axle manufacturing process comprising completion
  • a metal plate (16a) is used, where that plate (16a) is positioned in the vehicle axis manufacturing equipment of the present invention, as illustrated in figure 5, where said equipment is associated with a press.
  • the first stamping region (13) of at least one stamping tool (10) of the vehicle shaft manufacturing equipment is associated with the press hammer and the second stamping region (14) is associated with the press table.
  • the press transfers energy by applying pressure on the plate (16a) against the table, causing the ends of the plate (16a) to be bent, so that the plate (16a) comprises the “C” shape and then the next molding step is carried out, from which pressure is applied by the press, making the plate comprising the shape of “C” with its rounded base as shown in figure 6, acquiring the shape of a pre-folded plate (16b) of "U" shape.
  • two molding cores (1 1) are positioned by through the movement of two lateral devices (12) along the X direction, changing from the open position, as shown in figure 2, to the closed position, as shown in figure 1. Then, the upper part (13) is moved in towards the bottom (14), supplying pressure energy to the pre-folded plate (16b) originating from the press and shaping it.
  • the pre-folded sheet (16b) takes on the form of folded sheet.
  • the pressure is then removed and the taps (11) are then removed by means of the side devices (12), so that the folded plate takes on the shape of a cylinder (15).
  • the cylinder (15) is then removed from the vehicle axle manufacturing equipment and taken to completion stages.
  • the sides near or in contact with the cylinder (15), which form a chamfer, are welded by two passes in MIG / MAG with double torch, permanently joining the nearby sides or in contact of the cylinder (15) with a single weld bead.
  • the cylinder (15) is finished, leveling the excess weld with the cylinder surface (15), sanding the cylindrical (15) and cleaning.
  • the cylinder (15) thanks to the process of the present invention and / or thanks to the equipment of the present invention, has homogeneous thickness along its longitudinal length and constant circular cross section, as illustrated in figure 4.
  • the cylinder (15) can then be associated with brake systems, wheels, suspension, among others, for use on vehicle axles of commercial vehicles, as illustrated in figure 3.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Vehicle Body Suspensions (AREA)
  • Shaping Metal By Deep-Drawing, Or The Like (AREA)
  • Forging (AREA)

Abstract

La présente invention concerne une solution au problème de fabrication d'axes de véhicule de diamètres réduits et d'épaisseurs supérieures, la solution selon la présente invention décrivant des moyens de fabrication d'un cylindre à partir d'une plaque, ainsi que ledit cylindre obtenu à partir d'une plaque et son utilisation pour un axe de véhicule. Plus particulièrement, la présente invention comprend un équipement de fabrication d'un axe de véhicule permettant la fabrication de cylindres à partir d'une plaque d'épaisseur homogène et de section transversale circulaire. En outre, la présente invention concerne un procédé de fabrication d'un axe de véhicule ainsi qu'un axe de véhicule obtenu à partir d'une plaque. La présente invention relève des domaines du génie automobile, de la conception de véhicules, des véhicules routiers, du génie mécanique et de la production industrielle.
PCT/BR2020/050231 2019-06-27 2020-06-29 Équipement et procédé de fabrication d'axe de véhicule, et axe de véhicule Ceased WO2020257904A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
BR102019013355-4 2019-06-27
BR102019013355A BR102019013355A2 (pt) 2019-06-27 2019-06-27 ferramenta, processo e sistema de fabricação de cilindro a partir de chapa, eixo veicular e cilindro a partir de chapa

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WO2020257904A1 true WO2020257904A1 (fr) 2020-12-30

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Citations (11)

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JP2003053455A (ja) * 2001-08-09 2003-02-26 Yamamoto Denki:Kk 溶着パイプ体の連続成形方法と連続成形装置
JP2007007682A (ja) * 2005-06-29 2007-01-18 Isel Co Ltd 円筒成形溶接機
CN101905409A (zh) * 2010-08-13 2010-12-08 方盛车桥（柳州）有限公司 汽车冲焊桥壳加强圈的生产工艺
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