EP0401373A1 - Dispositif de traitement de finissage par durcissement de surfaces de corps de revolution complexes - Google Patents

Dispositif de traitement de finissage par durcissement de surfaces de corps de revolution complexes Download PDF

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Publication number
EP0401373A1
EP0401373A1 EP89905367A EP89905367A EP0401373A1 EP 0401373 A1 EP0401373 A1 EP 0401373A1 EP 89905367 A EP89905367 A EP 89905367A EP 89905367 A EP89905367 A EP 89905367A EP 0401373 A1 EP0401373 A1 EP 0401373A1
Authority
EP
European Patent Office
Prior art keywords
roller
machined
workpiece
fork
toroidal
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.)
Withdrawn
Application number
EP89905367A
Other languages
German (de)
English (en)
Other versions
EP0401373A4 (en
Inventor
Petr Ivanovich Yascheritsyn
Valery Vasilievich Volchuga
Evgeny Iosifovich Pyatosin
Evgeny Ivanovich Glazunov
Alexandr Leonidovich Ganusevich
Boris Petrovich Rykovsky
Andrei Valentinovich Simonov
Mikhail Naumovich Vilner
Alexandr Alexandrovich Klochko
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.)
Fiziko Tekhnichesky Institut Akademii Nauk Belorusskoi SSR
Original Assignee
Fiziko Tekhnichesky Institut Akademii Nauk Belorusskoi SSR
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 Fiziko Tekhnichesky Institut Akademii Nauk Belorusskoi SSR filed Critical Fiziko Tekhnichesky Institut Akademii Nauk Belorusskoi SSR
Publication of EP0401373A1 publication Critical patent/EP0401373A1/fr
Publication of EP0401373A4 publication Critical patent/EP0401373A4/de
Withdrawn legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B39/00—Burnishing machines or devices, i.e. requiring pressure members for compacting the surface zone; Accessories therefor
    • B24B39/04—Burnishing machines or devices, i.e. requiring pressure members for compacting the surface zone; Accessories therefor designed for working external surfaces of revolution

Definitions

  • the present invention relates to the field of metalworking by plastic surface deformation and relates in particular to a device for finishing and deep-rolling the surfaces of rotating bodies of complicated shape.
  • the present invention is suitable for use in the solidifying finishing dimensioning of machine parts in the motor vehicle, aircraft, electrotechnical industry, in the construction of hydraulic devices, in the manufacture of fittings, household appliances and in textile machine construction.
  • This invention can be most effectively used for surface hardening high strength bolts and wheel drums used in the aircraft industry.
  • a device for solidifying fillets on workpieces is widely known.
  • the device can only be used to machine the fillet zone of a workpiece.
  • the processing is carried out when the roll is rolled with axial infeed while the rolling force remains the same.
  • the duty cycle number of each point of this surface must be large, in some cases there must be twenty or more duty cycles.
  • this device is not universal because it is suitable for machining only one area of the workpiece, i.e. his groove.
  • One of these devices is used to machine cylindrical outer surfaces of workpieces, which includes a mandrel to which a body with two deformation rollers and three or four rollers supporting it is attached, and a rolling force generating means for rolling cylindrical surfaces.
  • This device is only suitable for machining the cylindrical region of a workpiece, metal beads being displaced when any occurs by displacing the metal during surface machining of the workpiece Approach remain on this workpiece.
  • Each of the devices described is not universal, i.e. you have to use several devices to machine different areas of the same workpiece. However, this deteriorates the quality of the workpiece and reduces the machining performance.
  • a device for finishing and deep rolling the surfaces of rotating bodies is known (SU, A, 931426).
  • This device contains a mandrel with a hinged fork-shaped handle that carries two rollers, each of which has a toroidal surface.
  • the device has a holder which contains a body with a means for generating the radial force of the roller acting on the surface to be machined.
  • this device is not universal, i.e. you can only machine workpieces of a certain shape with this device.
  • the invention has for its object to provide a device for finishing and deep rolling the surfaces of rotating bodies of complicated shape, the structural design of which would ensure the uninterrupted successive processing of surfaces of complicated shape, the workmanship of the workpiece to be increased and the technological application possibilities to expand this device.
  • the structural design of the device according to the invention results in an alignment of the roll with respect to the surface to be machined during the finishing and deep rolling of the workpiece in such a way that a new physical nature of the workpiece machining process arises.
  • This new being consists in the fact that the sliding line field of the metal and its flow zone are distributed and aligned in the deformation center so that the metal flows only to the side of the unprocessed surface (in front of the roll) and no flow of the metal towards the surface to be processed (behind the role) takes place. Because of the above, an axial elastoplastic shaft is created in front of the roll in the direction of the pre-rolling of the workpiece during the finishing and deep rolling.
  • the factor also plays a determining role that the main toroidal surface of the roller is continuously conjugated with the secondary toroidal surface, the generating surface of which is described with the radius of the circle, the center of which is on the axis of the articulation of the forked arm with the Sliding shoe lies.
  • This embodiment of the device prevents the part of the elastoplastic shaft which runs ahead of the roll from tearing off and being displaced behind the roll.
  • the slide shoe can expediently be T-shaped, wherein at one end of its horizontal flange a spring and near the other end on the same flange the axis of the joint are arranged, which produce the connection of the slide shoe with the fork-shaped handle.
  • the radius of the toroidal surface of the roller can advantageously be 0.3 to 0.4 mm smaller than the small radius of the surface of the rotating body to be machined.
  • this has the advantage that the cutting effect, i.e. the metal removal on the surface to be machined instead of solidifying the same can be avoided, and the formation of the wave of the pressed metal on the machined surface can be prevented, whereby the surface can be obtained with improved quality characteristics.
  • the device according to the invention for the finishing and deep rolling of rotary bodies of complicated shape thus has, as follows from the above explanation, the universality, is simple to manufacture and can increase the quality of the surface of the workpiece to be machined.
  • the device for finishing and deep rolling the surfaces of rotating bodies of complicated shape contains a fork-shaped handle I (Fig. 1;).
  • a roller 2 is rotatably mounted with respect to its longitudinal axis.
  • the device for finishing and deep-rolling the surfaces of rotary bodies also contains a holder 3, in the body 4 of which a means for generating the radial force of the roller 2 is arranged on the surface of the rotary body to be machined.
  • the means for generating the radial force of the roller 2 on the Zä machining surface of the rotary body is in the example given a rod 5 which is cushioned by a spring 6.
  • the slide shoe 8 is T-shaped. At one end 9 of its horizontal flange 10 there is a plate spring II and near the other end I2 on the same flange 10 there is an axis 13 of the articulated connection of the sliding thrust 8 with the fork-shaped handle 1. At the very end 12 of the horizontal flange 10 of the sliding block 8 is one Bore near the axis 13 of the articulated connection of the sliding block 8 with the fork-shaped handle I is provided, in which hole a screw 14 is seated, which swivels the fork-shaped handle I on the axis I3 of the articulated connection of the sliding block 8 with the fork-shaped handle 1 from one side limited here.
  • a bore is made in alignment with the plate spring II attached to the slide shoe 8, in which bore a screw 15 is arranged.
  • This screw 15 is in contact with the plate spring II and limits the pivoting of the fork-shaped arm I on the axis II from the other side.
  • the spring II can also have a different design. In this case, the screw 15 must be prepared for contact with the spring II.
  • Such an embodiment allows the process of finishing and deep rolling various surfaces of rotating bodies of complex shape to be carried out continuously in one operation, which increases the quality of the surface of the workpiece to be machined and the processing power, as well as expanding the technological possibilities of the device according to the invention.
  • the sliding block 8 is arranged with its lower part 16 in the upper part of the body 4 of the holder 3 such that it can come into contact with the rod 5 of the means for generating the radial force of the roller 2 on the surface of the rotary body to be machined.
  • the roller 2 has a toroidal main surface 17 and a toroidal secondary surface 18 which is continuously conjugated therewith.
  • This toroidal secondary surface 18 is designed such that its generatrix is described with the radius R of the circle, the center 0 of which lies on the axis 13 of the articulated connection of the sliding block 8 with the fork-shaped handle I.
  • Such a formation of the toroidal secondary surface can prevent the elastoplastic Shaft, which runs ahead of roll 2, is displaced behind roll 2 onto the machined surface during surface machining of the workpiece.
  • the radius "R" of the toroidal secondary surface 18 of the roller 2 is designed on the basis of the design considerations when planning the device according to the invention, ie it depends on the dimensions of the workpiece to be machined, its material, the dimensions of the bearings and the machine tool in which it is located Device is included, etc. from.
  • the radius "r" of the toroidal main surface 17 of the roller 2 is determined from the condition of free rolling of the fillet of the workpiece to be machined without jamming. It is sufficient to dimension this radius 0.3 to 0.4 mm smaller than the small radius of any of the fillets of the workpiece to be machined.
  • the high universality of the device according to the invention should be emphasized. If e.g. the radius "r" of the main toroidal surface 17 of the roller 2 is 0.7 mm, the workpieces can be solidified with fillets of one, two, three, four mm and more, which is not possible with any of the known tools for these small fillet values can be made of workpieces.
  • the small values of the fillets on workpieces are most widespread in mechanical engineering.
  • radius "r" of the main toroidal surface 17 of the roller 2 is not desirable to select the radius "r" of the main toroidal surface 17 of the roller 2 to be less than 0.3 to 0.4 mm depending on the properties of the material to be machined, because with smaller values, a wave will form on the machined surface of the workpiece fillet of the pressed metal begins to form or a cutting effect occurs.
  • the elastoplastic shaft of the pressed metal is always in front of the end face of the roller 2 when machining all surfaces of the workpiece with the fillets.
  • the workpiece 19 to be machined with the fillet 20 can be machined with the roller 2 continuously backwards and forwards under optimal operating conditions of the deformation center.
  • the spot 21 For a cylindrical surface 24 (rod) it is the elliptical spot 21; for the fillet 20 (torus) the spot changes constantly and gradually changes from the elliptical spot 21 with a large longitudinal axis into the elliptical spot 22 with a small longitudinal axis and then into the teardrop-shaped spot 23, for a flat surface 25 (end face) it is the teardrop-shaped spot 23.
  • the device for finishing and deep rolling the surfaces of rotating bodies works forgivingly.
  • the device is clamped in the support of a lathe (not shown in the drawing) by means of the holder 3.
  • the screws 14 and 15 produce an axial preload by acting on the plate spring II.
  • an optimal deformation spot is formed for each of these surfaces when touching the roller 2.
  • Each type of touch pad 21, 22, 23 is optimal for processing the above-mentioned surfaces.
  • the torus is particularly noteworthy.
  • the touch spot 21 has an elliptical shape with a large longitudinal axis. This prevents the metal from flowing toward the machined surface and forming a wave of the squeezed metal on that surface.
  • the plate spring II which increases the axial force, begins to compress.
  • the roller 2 turns continuously, reducing the longitudinal axis and the area of the contact spot 21.
  • the radial feed is switched on and simultaneously the axial feed is switched off at this machining stage.
  • the touch pad 21, 22, 23 passes through the three stages mentioned above. It should be emphasized that the feed is always present during the entire surface treatment. The feed ensures the constant displacement of the shaft of the pressed metal in front of the roller 2, which improves the processing quality of the surface of a rotating body of complicated shape.
  • the process is set at the end of the processing by removing the roll 2 from the processing zone with a rapid decrease in the rolling force from the optimum value to the zero value.
  • the size of the elastoplastic shaft which arises in front of the end face of the roll 2 and which determines the machining quality of the workpiece 19 depends on the geometric dimensions of the roll 2, the technological control of the rolling, the physico-mechanical properties of the material of the workpiece 19 and the mutual Location of the roller 2 and the workpiece 19 to be machined in the process of finishing and deep rolling, ie on the size of the deformation center in the dynamics of the process.
  • the technological uses of the device according to the invention are always related to the machining quality of the workpiece 19, the latter having priority.
  • the technological possible uses of the device according to the invention depend on the geometric dimensions, the shape and the material of the workpiece and on the characteristics of the machine tool used.
  • the present invention can be used in the solidification finishing finishing of machine parts in the motor vehicle aircraft industry and other branches of industry.
  • this invention can be used to solidify the surfaces of high strength bolts and wheel drums in the aircraft industry.
  • the durability of these workpieces is 80% higher than that which is processed with the known devices.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
  • Nitrogen And Oxygen Or Sulfur-Condensed Heterocyclic Ring Systems (AREA)

Abstract

Le dispositif comprend un balancier à coulisse (1) en forme de fourche dans lequel est monté rotatif un cylindre (2) présentant une surface toroïdale principale (17) ainsi qu'une surface toroïdale supplémentaire (18) conjuguée graduellement avec la surface précédente. Le dispositif comprend également un moyen créant une pression radiale du cylindre (2) sur la surface traitée du corps de révolution, ainsi qu'une coulisse (8) sollicitée par un ressort, reliée par charnière au balancier à coulisse (1) en forme de fourche et coopérant avec le moyen créant la pression radiale. La génératrice de ladite surface toroïdale supplémentaire (18) est limitée par un rayon (R) centré sur l'axe (13) de la liaison à charnière entre le balancier à coulisse (1) et ladite coulisse (8).
EP19890905367 1988-12-20 1988-12-20 Device for finishing hardening treatment of complexe body-of-revolution surfaces Withdrawn EP0401373A4 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/SU1988/000273 WO1990006835A1 (fr) 1988-12-20 1988-12-20 Dispositif de traitement de finissage par durcissement de surfaces de corps de revolution complexes

Publications (2)

Publication Number Publication Date
EP0401373A1 true EP0401373A1 (fr) 1990-12-12
EP0401373A4 EP0401373A4 (en) 1991-07-24

Family

ID=21617368

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19890905367 Withdrawn EP0401373A4 (en) 1988-12-20 1988-12-20 Device for finishing hardening treatment of complexe body-of-revolution surfaces

Country Status (3)

Country Link
EP (1) EP0401373A4 (fr)
JP (1) JPH03504575A (fr)
WO (1) WO1990006835A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3106935A1 (fr) * 2015-06-16 2016-12-21 Nivarox-FAR S.A. Procédé de fabrication d'une pièce comportant une étape de brunissage modifiée

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6495798B2 (ja) * 2015-10-20 2019-04-03 株式会社スギノマシン バニシング加工方法並びにローラ及びローラバニシング工具
RU2657263C1 (ru) * 2017-05-31 2018-06-09 федеральное государственное бюджетное образовательное учреждение высшего образования "Иркутский национальный исследовательский технический университет" (ФГБОУ ВО "ИРНИТУ") Способ поверхностного пластического деформирования
RU177508U1 (ru) * 2017-07-05 2018-02-28 федеральное государственное автономное образовательное учреждение высшего образования "Южный федеральный университет" (Южный федеральный университет) Устройство для упрочняющей обработки плоских поверхностей деталей
RU190964U1 (ru) * 2019-03-22 2019-07-17 федеральное государственное бюджетное образовательное учреждение высшего образования "Донской государственный технический университет" (ДГТУ) Устройство для упрочняющей обработки плоских поверхностей деталей
RU2757643C1 (ru) * 2021-02-04 2021-10-19 федеральное государственное бюджетное образовательное учреждение высшего образования "Иркутский национальный исследовательский технический университет" (ФГБОУ ВО "ИРНИТУ") Способ поверхностно-пластического деформирования наружной поверхности детали в виде тела вращения

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE426020C (de) * 1924-12-28 1926-03-03 Deutsch Luxemburgische Bergwer Vorrichtung zum Praegepolieren von Achszapfen mittels abrollender Polierwerkzeuge
DE810590C (de) * 1949-09-17 1951-08-13 Wilhelm Hegenscheidt K G Vorrichtung zum Praegepolieren von Seitenflaechen bei Drehkoerpern, insbesondere beiAchsbunden von Radsaetzen
GB1113089A (en) * 1966-03-22 1968-05-08 Viktor Langen Improvements in methods for cutting and burnishing spherical surfaces and apparatus therefor
SU1323354A2 (ru) * 1986-04-21 1987-07-15 В.К. Ионов Инструмент дл чистовой обработки поверхностей

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
Keine Entgegenhaltungen. *
See also references of WO9006835A1 *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3106935A1 (fr) * 2015-06-16 2016-12-21 Nivarox-FAR S.A. Procédé de fabrication d'une pièce comportant une étape de brunissage modifiée
EP3112955A1 (fr) * 2015-06-16 2017-01-04 Nivarox-FAR S.A. Procédé de fabrication d'une piéce comportant une étape de brunissage modifiée
US10564606B2 (en) 2015-06-16 2020-02-18 Nivarox-Far S.A. Component fabrication method including a modified burnishing step

Also Published As

Publication number Publication date
WO1990006835A1 (fr) 1990-06-28
EP0401373A4 (en) 1991-07-24
JPH03504575A (ja) 1991-10-09

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