FR2952317A1 - Manufacturing a swivel control rod having a sphere at its upper end, comprises producing transverse plate zone on end of the rod, and separately producing rod and sphere and then joining chamfered ends of rod and sphere by fusion welding - Google Patents

Manufacturing a swivel control rod having a sphere at its upper end, comprises producing transverse plate zone on end of the rod, and separately producing rod and sphere and then joining chamfered ends of rod and sphere by fusion welding Download PDF

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Publication number
FR2952317A1
FR2952317A1 FR0957937A FR0957937A FR2952317A1 FR 2952317 A1 FR2952317 A1 FR 2952317A1 FR 0957937 A FR0957937 A FR 0957937A FR 0957937 A FR0957937 A FR 0957937A FR 2952317 A1 FR2952317 A1 FR 2952317A1
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France
Prior art keywords
rod
sphere
manufacturing
zone
process according
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Granted
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FR0957937A
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French (fr)
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FR2952317B1 (en
Inventor
Pierre Rossignol
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Rossignol Technology Sas Fr
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Individual
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Priority to FR0957937A priority Critical patent/FR2952317B1/en
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
    • B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K11/00—Resistance welding; Severing by resistance heating
    • B23K11/002—Resistance welding; Severing by resistance heating specially adapted for particular articles or work
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T11/00—Transmitting braking action from initiating means to ultimate brake actuator without power assistance or drive or where such assistance or drive is irrelevant
    • B60T11/10—Transmitting braking action from initiating means to ultimate brake actuator without power assistance or drive or where such assistance or drive is irrelevant transmitting by fluid means, e.g. hydraulic
    • B60T11/16—Master control, e.g. master cylinders
    • B60T11/18—Connection thereof to initiating means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
    • B23P2700/00—Indexing scheme relating to the articles being treated, e.g. manufactured, repaired, assembled, connected or other operations covered in the subgroups
    • B23P2700/11—Joints, e.g. ball joints, universal joints
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C11/00—Pivots; Pivotal connections
    • F16C11/04—Pivotal connections
    • F16C11/06—Ball-joints; Other joints having more than one degree of angular freedom, i.e. universal joints
    • F16C11/0604—Construction of the male part
    • F16C11/0609—Construction of the male part made from two or more parts
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C7/00—Connecting-rods or like links pivoted at both ends; Construction of connecting-rod heads
    • F16C7/02—Constructions of connecting-rods with constant length

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Transportation (AREA)
  • Pressure Welding/Diffusion-Bonding (AREA)

Abstract

The process of manufacturing a swivel control rod (2) having a sphere (3) at its upper end, comprises producing a transverse plate zone on end of the rod, separately producing the rod and the sphere and then joining their chamfered ends by fusion welding, and annealing the weld joint to relax the internal tension and transform Martin zone into pearlitic zone. Back edge (5a, 5b) of the rod is contacted with the end of the sphere of the rod using an electrode. The back edge of the rod and the electrode are supplied with electric current (C) to provide fusion of the contact materials.

Description

PROCEDE DE FABRICATION D'UNE TIGE DE COMMANDE A ROTULE. La présente invention concerne un procédé de fabrication d'une tige de commande comprenant à son extrémité une sphère destinée à coopérer avec un logement de forme et de dimensions correspondantes pour constituer une rotule. METHOD FOR MANUFACTURING A ROD CONTROL ROD The present invention relates to a method of manufacturing a control rod comprising at its end a sphere intended to cooperate with a housing of shape and corresponding dimensions to form a ball joint.

L'invention trouve une application particulièrement avantageuse, mais non exclusive, dans le domaine des pièces d'équipement pour véhicules automobiles. C'est par exemple le cas des tiges de commande qui relient la pédale de frein au groupe hydraulique de commande du circuit de freinage. The invention finds a particularly advantageous, but not exclusive, application in the field of motor vehicle equipment parts. This is for example the case of the control rods which connect the brake pedal to the hydraulic control unit of the brake system.

Les tiges de commande du type de celle décrite précédemment sont actuellement et de façon traditionnelle réalisée par usinage, en partant d'une barre d'acier. On comprendra que ce type de procédé n'est pas satisfaisant. En effet procédé qui est un usinage dans une barre d'acier est particulièrement coûteux, car il prend du temps et crée une quantité importante de copeaux. De plus la sphère réalisée par usinage ne peut être aussi parfaite, tant dans ses dimensions, dans ses formes que dans son état de surface The control rods of the type of that described above are currently and traditionally made by machining, starting from a steel bar. It will be understood that this type of method is not satisfactory. Indeed process which is a machining in a steel bar is particularly expensive because it takes time and creates a significant amount of chips. In addition, the sphere produced by machining can not be so perfect, both in its dimensions, in its forms and in its surface state.

La présente invention veut donc résoudre les inconvénients du 25 procédé traditionnel en proposant un procédé particulièrement simple et peu coûteux. The present invention therefore seeks to overcome the disadvantages of the traditional process by providing a particularly simple and inexpensive method.

Ainsi, le procédé de fabrication selon l'invention, d'une tige de commande à rotule constituée d'une tige portant à son extrémité une 30 sphère, est caractérisé en ce qu'il consiste à réaliser séparément la tige et la sphère puis en rendant solidaire de l'extrémité de la tige, la sphère par une opération de soudage. Thus, the manufacturing method according to the invention, of a rod of control ball joint consists of a rod carrying at its end a sphere, is characterized in that it consists in separately making the rod and the sphere and then in making the end of the rod integral with the sphere by a welding operation.

Selon une caractéristique complémentaire, dans une étape 5 préalable, on réalise une zone plate transversale en extrémité de tige, ainsi qu'un chanfrein d'extrémité. According to a complementary characteristic, in a preliminary step, a transverse flat area is formed at the end of the rod, as well as an end chamfer.

Selon une autre étape du procédé avant l'opération de soudage il a procédé à un lavage des pièces, tandis que pour l'opération de soudage 10 par fusion, l'on maintien la tige grâce à des mors et on vient mettre en contact la sphère avec l'extrémité de la tige, grâce à une électrode, sachant que les mors et l'électrode sont alimentés en courant électrique, ainsi, là où les courants se rejoignent c'est-à-dire là où les zones en contact se rejoignent, il y a fusion de la matière en contact, ce qui provoque la 15 soudure et l'adhérence par soudure des deux pièces en contact. According to another step of the process before the welding operation, the parts were washed, whereas for the fusion welding operation, the rod is held by jaws and the sphere with the end of the rod, thanks to an electrode, knowing that the jaws and the electrode are supplied with electric current, thus, where the currents meet, that is to say where the areas in contact with each other join, there is melting of the material in contact, which causes the welding and the adhesion by welding of the two parts in contact.

Selon une autre étape complémentaire, après l'opération de soudage il est procédé à un recuit de la soudure afin de détendre les tensions internes et transformer la zone Martin en zone Perlitique. La description qui va suivre qui est donnée à titre d'exemple non limitatif, fera mieux comprendre comment l'invention peut être réalisée, en référence aux dessins annexés sur lesquels: In another complementary step, after the welding operation, the solder is annealed in order to relax the internal tensions and transform the Martin zone into a Perlitic zone. The following description which is given by way of nonlimiting example, will better understand how the invention can be made, with reference to the accompanying drawings in which:

25 La figure 1 est une vue externe d'une la tige réalisée selon l'invention. La figure 2 est une vue avant la solidarisation de la sphère en extrémité de tige. 20 Les figures 3a, 3b, illustrent les étapes préalables de réalisation des éléments. La figure 4 illustre schématiquement l'étape avant soudure de 5 lavage des pièces. La figure 5 illustre de façon schématique l'opération principale de soudage par fusion. 10 La tige de commande, portant la référence générale (1) réalisée selon le procédé de l'invention, est constituée d'une tige (2) portant à son extrémité une sphère (3). Comme nous l'avons dit précédemment, la tige de commande est 15 par exemple celle qui relie la pédale de frein au groupe hydraulique de commande du circuit de freinage, tandis que la sphère d'extrémité est destinée à coopérer avec un logement de forme et de dimensions correspondantes pour constituer une rotule. 20 Selon le procédé de l'invention, la tige de commande (1) est réalisée en réalisant séparément la tige (2) et la sphère (3), et en rendant ladite sphère solidaire de I'extrémité (20) de la tige (2) par soudure (4). Selon l'invention la soudure est une soudure par fusion entre 25 l'extrémité de la tige (2) et la sphère (3). La fusion des matières dans les zones de contact se faisant grâce à un courant électrique (C). Ainsi dans une étape préalable, on réalise la tige (2) proprement dite en réalisant en extrémité (20) une zone plate transversale (21) et un 30 chanfrein (21). La tige peut être réalisée par usinage ou frappe ou tout autre moyen approprié. Par ailleurs on procède à la réalisation de la Figure 1 is an external view of a rod made according to the invention. Figure 2 is a view before the joining of the sphere at the end of the rod. Figures 3a, 3b illustrate the prior steps of making the elements. Figure 4 schematically illustrates the step prior to welding the parts. Figure 5 schematically illustrates the main operation of fusion welding. The control rod, bearing the general reference (1) made according to the method of the invention, consists of a rod (2) carrying at its end a sphere (3). As we said above, the control rod is for example that which connects the brake pedal to the hydraulic control unit of the braking circuit, while the end sphere is intended to cooperate with a housing of form and of corresponding dimensions to form a ball joint. According to the method of the invention, the control rod (1) is made by separately producing the rod (2) and the sphere (3), and by making said sphere integral with the end (20) of the rod ( 2) by welding (4). According to the invention the weld is a fusion weld between the end of the rod (2) and the sphere (3). The melting of the materials in the contact zones is done by means of an electric current (C). Thus, in a prior step, the rod (2) itself is produced by producing at the end (20) a transverse flat area (21) and a chamfer (21). The rod can be made by machining or striking or any other suitable means. In addition, we proceed to the realization of

sphère (3), destinée à venir être appliquée sur la zone transversale plate de l'extrémité de la tige. sphere (3), intended to be applied to the flat transverse zone of the end of the rod.

Avant l'opération de soudage on procède à un lavage (L) de la tige et de la sphère pour éviter notamment la présence d'inclusions au sein du joint de soudure. Le lavage pouvant être réalisé par pulvérisation ou trempage suivi d'un séchage éventuel. Before the welding operation is carried out a washing (L) of the rod and the sphere to avoid in particular the presence of inclusions within the weld joint. The washing can be carried out by spraying or soaking followed by a possible drying.

Ensuite on procède à la soudure proprement dite l0 Selon le procédé, on maintien la tige (2) grâce par exemple à des mors (5a, 5b) et on vient mettre en contact la sphère (3) avec l'extrémité de la tige, grâce par exemple à une électrode (6), sachant que les mors (5a, 5b) et l'électrode (6) sont alimentés en courant électrique. A savoir que 15 l'électrode (6) est reliée à la borne positive (+) d'une alimentation (A), tandis que les mors (5a, 5b) sont connectés à la borne négative (-). Then the actual welding is carried out. According to the method, the rod (2) is held for example by means of jaws (5a, 5b) and the sphere (3) is brought into contact with the end of the rod. thanks for example to an electrode (6), knowing that the jaws (5a, 5b) and the electrode (6) are supplied with electric current. That is, the electrode (6) is connected to the positive (+) terminal of a power supply (A), while the jaws (5a, 5b) are connected to the negative (-) terminal.

Ainsi, là où les courants se rejoignent c'est-à-dire là où les zones en contact se rejoignent, il y a fusion de la matière en contact, ce qui 20 provoque la soudure (4) et l'adhérence par soudure des deux pièces en contact (2 et 3). Thus, where the currents meet, i.e. where the contacting zones meet, the material in contact is fused, causing the solder (4) and the solder adhesion to form. two pieces in contact (2 and 3).

Après l'opération de soudage il est procédé à un recuit de la soudure afin de détendre les tensions internes et transformer la zone 25 Martin en zone Perlitique. After the welding operation, the solder is annealed in order to relax the internal tensions and transform the Martin zone into a Perlitic zone.

Claims (6)

REVENDICATIONS1. Procédé de fabrication d'une tige de commande à rotule (1) constituée d'une tige (2) portant à son extrémité (20) une sphère (3), caractérisé en ce qu'il consiste à réaliser séparément la tige (2) et la sphère (3) puis en rendant solidaire de I'extrémité de la tige, la sphère par une opération de soudage. REVENDICATIONS1. Method for manufacturing a ball-and-socket control rod (1) consisting of a rod (2) carrying at its end (20) a sphere (3), characterized in that it consists of separately producing the rod (2) and the sphere (3) then by making integral with the end of the rod, the sphere by a welding operation. 2. Procédé de fabrication selon la revendication 1, caractérisé en ce que dans une étape préalable, on réalise une zone plate transversale (21) en extrémité de tige. 2. Manufacturing process according to claim 1, characterized in that in a prior step, a transverse flat area (21) is formed at the end of the rod. 3. Procédé de fabrication selon la revendication 2, caractérisé en ce dans une étape préalable, on réalise un chanfrein d'extrémité (21). 3. Manufacturing process according to claim 2, characterized in that in a preliminary step, an end chamfer (21) is made. 4. Procédé de fabrication selon la revendication 3, caractérisé en ce qu'avant l'opération de soudage il est procédé à un lavage des pièces. 4. Manufacturing process according to claim 3, characterized in that before the welding operation is carried out a parts washing. 5. Procédé de fabrication selon la revendication précédente, caractérisé en ce qu'il est ensuite procédé à l'opération de soudage par fusion, l'on maintien la tige (2) grâce à des mors (5a, 5b) et on vient mettre en contact la sphère (3) avec l'extrémité de la tige, grâce à une électrode (6), sachant que les mors (5a, 5b) et l'électrode (6) sont alimentés en courant électrique, ainsi, là où les courants se rejoignent c'est-à-dire là où les zones en contact se rejoignent, il y a fusion de la matière en contact, ce qui provoque la soudure (4) et l'adhérence par soudure des deux pièces en contact (2 et 3). 5. Manufacturing process according to the preceding claim, characterized in that it is then carried out the fusion welding operation, the rod (2) is held by jaws (5a, 5b) and it comes to put in contact with the sphere (3) with the end of the rod, thanks to an electrode (6), knowing that the jaws (5a, 5b) and the electrode (6) are supplied with electric current, thus, where the The currents meet, that is to say, where the contacting areas meet, there is melting of the material in contact, which causes the welding (4) and the adhesion by welding of the two parts in contact (2). and 3). 6. Procédé de fabrication selon la revendication précédente, caractérisé en ce qu'après l'opération de soudage il est procédé à un recuit de la soudure afin de détendre les tensions internes et transformer la zone Martin en zone Perlitique. 6. Manufacturing process according to the preceding claim, characterized in that after the welding operation is annealed the weld to relax the internal tensions and transform the Martin zone into a Perlitic zone.
FR0957937A 2009-11-10 2009-11-10 METHOD FOR MANUFACTURING A ROD CONTROL STICK Expired - Fee Related FR2952317B1 (en)

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FR0957937A FR2952317B1 (en) 2009-11-10 2009-11-10 METHOD FOR MANUFACTURING A ROD CONTROL STICK

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FR2952317A1 true FR2952317A1 (en) 2011-05-13
FR2952317B1 FR2952317B1 (en) 2012-02-24

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1039661A (en) * 1963-01-30 1966-08-17 Danfoss As Improvements in or relating to the manufacture of connecting rods e.g., for compressors
JPS62288716A (en) * 1986-06-03 1987-12-15 Hiroshi Teramachi Ball joint and its manufacture
EP0257440A2 (en) * 1986-08-25 1988-03-02 Nihon Radiator Co., Ltd. Method and apparatus for manufacturing piston rod
EP0623762A1 (en) * 1993-05-04 1994-11-09 KNORR-BREMSE SYSTEME FÜR NUTZFAHRZEUGE GmbH Pneumatically actuated disc brake
US5996226A (en) * 1997-12-23 1999-12-07 Itt Manufacturing Enterprises, Inc. Method of manufacturing push rod balls

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1039661A (en) * 1963-01-30 1966-08-17 Danfoss As Improvements in or relating to the manufacture of connecting rods e.g., for compressors
JPS62288716A (en) * 1986-06-03 1987-12-15 Hiroshi Teramachi Ball joint and its manufacture
EP0257440A2 (en) * 1986-08-25 1988-03-02 Nihon Radiator Co., Ltd. Method and apparatus for manufacturing piston rod
EP0623762A1 (en) * 1993-05-04 1994-11-09 KNORR-BREMSE SYSTEME FÜR NUTZFAHRZEUGE GmbH Pneumatically actuated disc brake
US5996226A (en) * 1997-12-23 1999-12-07 Itt Manufacturing Enterprises, Inc. Method of manufacturing push rod balls

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