WO2018235998A1 - Machine à souder par points par résistance électrique ayant une double pointe d'électrode composite - Google Patents

Machine à souder par points par résistance électrique ayant une double pointe d'électrode composite Download PDF

Info

Publication number
WO2018235998A1
WO2018235998A1 PCT/KR2017/011528 KR2017011528W WO2018235998A1 WO 2018235998 A1 WO2018235998 A1 WO 2018235998A1 KR 2017011528 W KR2017011528 W KR 2017011528W WO 2018235998 A1 WO2018235998 A1 WO 2018235998A1
Authority
WO
WIPO (PCT)
Prior art keywords
electrode tip
spot
spot welding
electrode
metal plate
Prior art date
Application number
PCT/KR2017/011528
Other languages
English (en)
Korean (ko)
Inventor
진인태
Original Assignee
부경대학교 산학협력단
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 부경대학교 산학협력단 filed Critical 부경대학교 산학협력단
Publication of WO2018235998A1 publication Critical patent/WO2018235998A1/fr

Links

Images

Classifications

    • 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
    • B23K11/10—Spot welding; Stitch welding
    • B23K11/11—Spot welding
    • B23K11/115—Spot welding by means of two electrodes placed opposite one another on both sides of the welded parts
    • 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
    • B23K11/16—Resistance welding; Severing by resistance heating taking account of the properties of the material to be welded
    • B23K11/20—Resistance welding; Severing by resistance heating taking account of the properties of the material to be welded of different metals
    • 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
    • B23K11/30—Features relating to electrodes
    • B23K11/3009—Pressure electrodes
    • 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
    • B23K11/30—Features relating to electrodes
    • B23K11/3054—Cooled electrodes
    • 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
    • B23K2103/00—Materials to be soldered, welded or cut
    • B23K2103/18—Dissimilar materials

Definitions

  • the present invention relates to an electric resistance spot welder having a double composite electrode tip, and more particularly, to an electric resistance spot welder having a double composite electrode which welds two metal plates by melting a contact surface at a predetermined position between metal plates in a state in which metal plates of different materials are overlapped, To an electric resistance spot welder having an electrode tip.
  • Electrical resistance spot welding is a technique of melting and welding the contact surfaces of two metal plates by heat generated by contact resistance at the contact surfaces between the metal plates by energizing a large amount of current by using electrodes on a part of two overlapping metal plates. This is a relatively tricky technique in which the welding characteristics such as the size, time, and pressing conditions of the current to be welded must be controlled according to the state of the contact surface.
  • a spot electrode having a double composite electrode tip including a tip is used to control the shape of the electrode tip, the amount of current supplied to the electrode tip, or the shape of the electrode tip according to the type and thickness of the dissimilar metal plate to enable spot welding of the dissimilar metal plate And an electric resistance spot welder having a double composite electrode tip.
  • an electric resistance spot detecting method comprising the steps of: placing a first metal plate material and a second metal plate material overlapping each other in a space therebetween and having a spot electrode having an electrode formed at one end thereof in contact with the metal plate material;
  • the spot welding rod may include a first spot welding support bar in the form of a bar supplied with power from the first power supply unit; A second spot welding support bar in the form of a rod receiving power from a second power supply and receiving the first spot welding support bar so as to be spaced apart from the first spot welding support bar; A first electrode tip coupled to an end of the first spot weld support bar; And a second electrode tip coupled to an end of the second spot weld support bar and receiving the first electrode therein.
  • first spot welding support bar and the second spot welding support bar may each be formed of a cylindrical bar, and the first spot welding support bar may be disposed concentrically within the second spot welding support bar.
  • the first electrode tip may be formed with an indentation groove at an end thereof so that the groove of the indentation may be extrapolated to an end of the first spot welding support rod so that the first electrode tip may be coupled to the first spot welding support rod .
  • a first inclined surface is formed on the outer surface of the end portion of the first spot welding support rod, and a second inclined surface corresponding to the first inclined surface is formed on the inner surface of the recessed groove of the first electrode tip, .
  • the end of the second electrode tip may be inserted into the inner surface of the end portion of the second spot welding support rod, and the second electrode tip may be coupled to the second spot welding support rod.
  • a fourth inclined surface corresponding to the third inclined surface may be formed on an end surface of the end portion of the second electrode tip so as to be inserted and coupled to the inner surface of the end portion of the second spot welding support rod.
  • a circular rod having a circular protruding section is formed in the lower part of the first electrode tip, and one end face of the circular rod of the first electrode tip is exposed under the second electrode tip, A hole through which the rod is inserted can be formed.
  • the first spot welding electrode and the second spot welding electrode which are disposed opposite to both sides of the overlapped metal plate, contact both surfaces of the metal plate, the first spot welding of the first power supply unit, A first electrode tip of the first spot-welding electrode, a first spot-welding support bar of the second spot-welding electrode, and a first waste-welding support rod of the first spot- A second electrode tip of the first spot welding electrode, a second electrode tip of the second spot welding electrode, a second spot welding electrode of the first spot welding electrode, And a second waste electrical circuit connected to the second power supply unit in order.
  • the first spot welding support rod may further include a cooling water inlet tube into which a sealed cooling water space for injecting cooling water is inserted, and a coolant injection pipe inserted into the cooling water space to inject cooling water.
  • one end surface of the first electrode tip and one end surface of the second electrode tip can simultaneously contact the metal plate.
  • the second electrode tip is formed of a material having a high resistance value, and when the current flows through the second power supply unit, resistance heat is generated to heat the metal plate.
  • the strength of the power supplied from the first power supply unit and the second power supply unit, the material of the first electrode tip and the second electrode tip, or the material of the first electrode tip and the second electrode tip It is possible to perform spot welding with respect to different types of metal plate by changing at least one of the contact area and the contact area.
  • the above object can also be achieved by a plasma processing apparatus comprising a spot electrode having a first metal plate and a second metal plate superimposed thereon and having an electrode formed at one end thereof in contact with the metal plate,
  • the spot electrode includes a rod-shaped spot welding support rod supplied with power from a power supply unit; A first electrode tip coupled to an end of the spot weld support bar; And a second electrode tip coupled to an end of the spot weld support bar and receiving the first electrode tip therein.
  • the spot welding support bar may have an annular groove formed at an end of the spot welding support rod, and the first electrode tip and the second electrode tip may be coupled to the annular groove.
  • the first electrode tip is formed with an engraved groove at an end thereof and the groove of the engraved first electrode tip is extrapolated to an inner side face of the annular groove so that the first electrode tip is coupled to the spot welding support rod .
  • the end of the second electrode tip may be inserted into the outer side surface of the annular groove, and the second electrode tip may be coupled to the spot welding support rod.
  • the above object can also be achieved by a plasma processing apparatus comprising a spot electrode having a first metal plate and a second metal plate superimposed thereon and having an electrode formed at one end thereof in contact with the metal plate,
  • the spot electrode includes a rod-shaped spot welding support rod supplied with power from a power supply unit; A connection portion coupled to the spot welding support bar; A first electrode tip coupled to an end of the spot weld support bar; And a second electrode tip coupled to an end of the connection and receiving the first electrode tip therein.
  • connection portion is formed with a hollow and is coupled to an outer circumferential surface of the spot welding support rod and extends to surround and surround the end portion of the end portion of the spot welding support rod to form an annular groove at an end of the spot welding support rod and the connection portion, And the first electrode tip and the second electrode tip may be coupled to the annular groove.
  • a side slope is formed on the outer circumferential surface of the spot welding support bar, and an inner slope corresponding to the side slope is formed in the hollow inner side of the connection portion where the hollow is inserted to be inserted into the spot welding support rod, Can be inserted and bonded.
  • the first electrode tip is formed with an engraved groove at an end thereof and the groove of the engraved first electrode tip is extrapolated to an inner side face of the annular groove so that the first electrode tip is coupled to the spot welding support rod .
  • the end of the second electrode tip may be inserted into the outer side surface of the annular groove, and the second electrode tip may be coupled to the connection portion.
  • a circular rod having a circular protruding section is formed in the lower part of the first electrode tip, and one end face of the circular rod of the first electrode tip is exposed under the second electrode tip, A hole through which the rod is inserted can be formed.
  • a first inclined surface is formed on the inner side surface of the annular groove, and a second inclined surface corresponding to the first inclined surface is formed on the inner side surface of the depressed portion of the first electrode tip.
  • a third inclined surface is formed on the outer side surface in the annular groove, and a fourth inclined surface corresponding to the third inclined surface is formed on the outer surface of the end of the second electrode tip.
  • the spot welding support rod may further include a cooling water inlet tube into which a sealed cooling water space for injecting cooling water is inserted, and a cooling water injection pipe inserted into the cooling water space to inject cooling water.
  • one end surface of the first electrode tip and one end surface of the second electrode tip can simultaneously contact the metal plate.
  • the second electrode tip is formed of a material having a high resistance value, and when the current flows through the second power supply unit, resistance heat is generated to heat the metal plate.
  • the amount of current supplied to each electrode tip constituting the double composite electrode tip is controlled to be different from each other, and the spot weldability of the dissimilar metal plate material is controlled in accordance with the difference in amount of current supplied to each electrode tip, There is an advantage that the spot welding can be easily performed.
  • the spot weldability of the dissimilar metal plate can be controlled by changing the material constituting the double composite electrode tip or adjusting the contact area with the metal plate according to the shape of the electrode, There is an advantage that spot welding can be easily performed with respect to the welding wire.
  • FIG. 1 is a cross-sectional view showing a spot electrode of an electric resistance spot welder having a double composite electrode tip according to an embodiment of the present invention, disposed on both sides of a metal plate.
  • Fig. 2 is a partially cutaway perspective view of the double spot welding support bar of Fig. 1;
  • FIG. 3 is a partially cutaway perspective view of the first electrode tip of FIG.
  • FIG. 4 is a partially cutaway perspective view of the second electrode tip of FIG.
  • FIG. 5 is a partially cutaway perspective view showing a state where the first electrode tip and the second electrode tip are coupled to the double spot welding support rod.
  • Fig. 6 is a front view of Fig. 5 showing the contact surface of the double composite electrode tip with the metal plate.
  • FIG. 7 is a view showing a flow of a double current when spot welding is performed using an electric resistance spot welder having a double composite electrode tip according to an embodiment of the present invention.
  • FIG 8 is a view illustrating a process of performing welding using an electric resistance spot welder having a double composite electrode tip according to an embodiment of the present invention.
  • FIG. 9 is a cross-sectional view of a spot welding rod of an electric resistance spot welder having a double composite electrode tip according to another embodiment of the present invention.
  • Fig. 10 is a sectional view showing a modification of Fig. 9. Fig.
  • FIG. 1 is a cross-sectional view showing a spot electrode of an electric resistance spot welder having a double composite electrode tip according to an embodiment of the present invention disposed on both sides of a metal plate
  • FIG. 2 is a cross- 1 is a partial cutaway perspective view of the first electrode tip of FIG. 1
  • FIG. 4 is a partially cutaway perspective view of the second electrode tip of FIG. 1
  • FIG. 5 is a partial cutaway perspective view of the first electrode tip of FIG.
  • FIG. 6 is a front view of FIG. 5 showing a contact surface of a double composite electrode tip with a metal plate
  • the spot welding rod 100 of the electric resistance spot welder having the double composite electrode tip includes a first spot welding support rod 110, a second spot welding support rod 120, a first electrode tip 130, And a second electrode tip (140).
  • the first spot weld support bar 110 forms a double spot weld support bar together with the second spot weld support bar 120.
  • the first spot weld support bar 110 receives a power from an external first power supply unit in the form of a rod, So that current flows through the first electrode tip 130 coupled to one end of the first electrode tip 110.
  • the first spot weld support bar 110 may be formed of a cylindrical bar, but is not limited thereto.
  • the first spot welding support rod 110 is formed with a closed cooling water space 112 into which cooling water is injected and is connected to the cooling water space 112 and the first spot welding A cooling water injection pipe 114 connecting the outside of the support rod 110 may be formed.
  • the second spot welding support rod 120 is supplied with power from an external second power supply unit in the form of a rod and is electrically connected to a second electrode tip 140 coupled to one end of the second spot welding support rod 120 .
  • the second spot weld support bar 120 receives the first spot weld support bar 110 therein so as to be spaced apart from the first spot weld support bar 110,
  • the two spot welding support rods 120 are characterized in that the double spot welding support rods are formed so as not to contact each other. Therefore, the magnitude of the power supplied to the first spot welding support bar 110 through the first power supply unit and the magnitude of the power supplied to the second spot welding support bar 120 through the second power supply unit can be controlled to be different from each other .
  • the first spot welding support bar 110 is formed as a cylindrical bar
  • the second spot welding support bar 120 is also preferably formed of a concentric circular cylindrical bar.
  • the first electrode tip 130 is coupled to one end of the first spot weld support bar 110 and contacts the metal plate 200 during spot welding. 3, the upper portion of the first electrode tip 130 is formed into a cylindrical shape having a recess 132 formed therein. The recess 132 is formed at the lower end of the first spot welding support rod 110, So that the first electrode tip 130 can be coupled to the first spot welding support bar 110.
  • the outer surface of the lower end portion of the first spot welding support rod 110 is formed with the inclined surface 111 so that the diameter of the cylindrical body is reduced downward,
  • An inclined surface 131 is formed on the inner surface of the groove 132 to correspond to the inclined surface 111 so that the first electrode tip 130 can be easily coupled to the first spot welded support bar 110.
  • a circular rod 134 protruding in a circular shape in section may be formed under the first electrode tip 130.
  • a circular rod 134 is inserted into a hole 144 of a second electrode tip 140 to be described later So that the first electrode tip 130 is brought into contact with the metal plate 200 to conduct electricity.
  • the second electrode tip 140 is coupled to one end of the second spot weld support bar 120 and contacts the metal plate 200 during spot welding. At this time, the second electrode tip 140 may be formed with a depression 142 corresponding to the shape of the first electrode tip 130 so as to receive the first electrode tip 130 therein. When the first electrode tip 130 is formed in a cylindrical shape, the second electrode tip 140 may be formed in a cylindrical shape having a corresponding depression 142 formed therein.
  • a hole 144 may be formed in the lower end of the second electrode tip 140 to allow the circular rod 134, which is the lower end of the first electrode tip 130, to be inserted. 6, one end face of the first electrode tip 130 may be exposed to the outside and may be in contact with the metal plate 200. In this case, the exposed first electrode tip contact surface 135 and the second electrode tip contact surface 145, which form the hole 144, are made to coincide with each other, so that when the spot welding is performed, The electrode tip 140 can be brought into contact with the metal plate 200 at the same time.
  • the upper end of the second electrode tip 140 is inserted into the inner surface of the lower end of the second spot welding support rod 120, so that the second electrode tip 140 is attached to the second spot welding support rod 120 Can be combined.
  • the inner surface of the lower end of the second spot welding support rod 120 is formed with the inclined surface 121 so as to increase the diameter of the inner surface toward the bottom, and the outer surface of the upper portion of the second electrode tip 140 has the inclined surface 121 So that the second electrode tip 140 can be easily coupled to the second spot welded support bar 120. As shown in FIG.
  • first electrode tip 130 is coupled to the first spot welding support rod 110 in an inclined plane and the second electrode tip 140 is coupled to the second spot welding support rod 120 in an inclined plane, , It is easy to replace the electrode tips 130 and 140 in the present invention.
  • the size of the power supplied to the first electrode tip 130 and the size of the power supplied to the second electrode tip 140 can be controlled differently so that the amount of the current supplied to the electrode tips 130 and 140 It is easy to adjust the spot weldability of the dissimilar metal plates 200a and 200b according to the difference.
  • the power supply unit includes a current control unit (not shown) And a power supply.
  • FIG 8 is a view illustrating a process of performing welding using an electric resistance spot welder having a double composite electrode tip according to an embodiment of the present invention.
  • the first metal plate 200a and the second metal plate 200b to be welded in the present invention are preferably formed of dissimilar metal plates 200a and 200b having different metal materials, It is not. That is, the electric resistance spot welder of the present invention may be used for welding a metal plate of the same kind.
  • the first spot welding rod 100a and the second spot welding rod 100b which are respectively disposed on the upper and lower portions of the overlapped different kinds of metal plates 200a and 200b,
  • the two spot electrode bars 100b are moved so that the double composite electrode tips 130a, 140a, 130b and 140b bonded to the ends of the spot electrode bars 100a and 100b are brought into contact with the metal plate members 200a and 200b (b).
  • the second electrode tip 140a of the first spot electrode rod 100a and the second electrode tip 140b of the second spot electrode rod 100b are formed of a material having a high resistance value .
  • the second electrode tips 140a and 140b are heated by resistance heating, and the heat is conducted to heat the metal plates 200a and 200b . More specifically, the resistance heating at the second electrode tip 140a of the first spot electrode rod 100a heats the first metal plate material 200a which is conductive and in contact with the second electrode strip 140a, Resistance heat generation at the electrode tip 140b causes the second metal plate 200b to be heated to be brought into contact with the electrode tip 140b.
  • a large amount of power is supplied from the first power supply unit to the first spot welding support rod 110a of the first spot welding rod 100a so that the first electrode tip 130a of the first spot welding rod 100a, So that current flows to the first electrode tip 130b of the first electrode 100b.
  • the current flows from the contact surfaces of the dissimilar metal plates 200a and 200b The contact surface can be heated by the heat generated by the contact resistance.
  • the contact resistance heat generated by the first electrode tips 130a and 130b and the heat conducted from the second electrode tips 140a and 140b act synergistically to melt the contact surfaces between the dissimilar metal plates 200a and 200b,
  • the metal plates 200a and 200b can be spot-welded.
  • the magnitude of the current flowing from the second electrode tip 140a of the first spot electrode rod 100a to the second electrode tip 140b of the second spot electrode rod 100b and the magnitude of the current flowing from the first spot electrode rod 100a can be controlled differently to control the size of the different current,
  • the metal plate members 200a and 200b can be easily spot-welded.
  • the second electrode tip 140a of the first spot welding rod 100a and the second electrode tip 140b of the second spot welding rod 100b can be made of a metal material having a different resistance value and the first spot electrode
  • the electrode tips 130a, 130b, 140a, and 140b can be made of metal materials having different resistance values at the first electrode tip 130a of the first spot electrode 100a and the first electrode tip 130b of the second spot electrode 100b.
  • 140b can be easily replaced by using the inclined surfaces 111, 121, 131, Accordingly, the material of the electrode tips 130a, 130b, 140a, 140b can be changed, and the different types of metal plates 200a, 200b having different melting temperatures can be easily spot-welded.
  • the size of the cross-sectional area of the second electrode tip 140a of the first spot electrode 100a in contact with the metal plate 200a and the size of the second electrode tip 140b of the second spot electrode rod 100b The size of the cross-sectional area of the first spot electrode 100a in contact with the metal plate 200a and the size of the cross-sectional area of the first spot electrode 100a in contact with the metal plate 200a,
  • the electrode tips 130a, 130b, 140a, and 140b having different shapes can be easily replaced with the inclined surfaces 111, 121, and 121b so that the tip 130b can have different cross- 131, and 141, respectively. Accordingly, the contact areas between the electrode tips 130a, 130b, 140a, 140b and the metal plates 200a, 200b can be changed, and the different types of metal plates 200a, 200b having different melting temperatures can be easily spot welded .
  • FIG. 9 is a cross-sectional view of a spot electrode of an electric resistance spot welder having a double composite electrode tip according to another embodiment of the present invention
  • FIG. 10 is a cross-sectional view showing a modification of FIG.
  • spot welding is performed by two spot welding rods 100a and 100b which are in contact with each other between the overlapped first metal plate 200a and the second metal plate 200b,
  • Each of the spot welding rods 100 includes a rod-shaped spot welding support rod 150 supplied with power from a power supply unit, a first electrode tip 130 and a spot welding support rod 150 coupled to ends of the spot welding support rod 150, And a second electrode tip 140 coupled to an end of the second electrode tip 140.
  • the first electrode tip 130 and the second electrode tip 140 are respectively coupled to the double spot welding support rods composed of the first spot welding support rod 110 and the second spot welding support rod 120 ,
  • the first electrode tip 130 and the second electrode tip 140 are coupled to the end of the single spot welding support rod 150 at the same time as shown in FIG. 9 in this embodiment.
  • the second electrode tip 140 is formed to receive the first electrode tip 130 therein so that the second electrode tip 140 can receive the first electrode tip 130 therein
  • an annular groove 152 (not shown) is formed at the end of the spot welding support rod 150 so that the first electrode tip 130 and the second electrode tip 140 can be coupled to the single spot welding support rod 150 Can be formed.
  • the shape of the first electrode tip 130 and the shape and structure of the second electrode tip 140 are the same as those in the previous embodiment and thus the inner side surface 153 in the annular groove formed in the end portion of the spot welding support rod 150,
  • the groove 132 of the first electrode tip 130 is extrapolated to the first electrode tip 130 so that the first electrode tip 130 can be coupled to the end of the spot welding support rod 150.
  • the inclined surface 153 is formed on the inner side surface 153 of the annular groove so that the diameter becomes smaller toward the bottom and the inclined surface 153 is formed on the inner side surface of the depressed groove 132 of the first electrode tip 130
  • the first electrode tip 130 can be easily coupled to the spot welding support rod 150 by forming the inclined surface 131 so as to correspond thereto.
  • the second electrode tip 140 is inserted into the spot welding support rod 150 so that the end of the second electrode tip 140 is inserted into the annular groove outer side surface 154 formed at the end of the spot welding support rod 150, Lt; / RTI >
  • the outer surface of the end of the second electrode tip 140 is formed with an inclined surface 154 corresponding to the inclined surface 154.
  • the inclined surface 154 is formed on the outer side surface 154 of the annular groove, The second electrode tip 140 can be easily coupled to the spot welding support rod 150.
  • the spot welding support rod 150 When a large amount of power is supplied from the power supply unit connected to the spot welding support rod 150, a part of the current flowing along the spot welding support rod 150 passes through the second electrode tip 140, The electrode tip 140 generates resistance and the heat is conducted to the metal plate 200 to heat the metal plate 200. The remaining current flowing along the spot welding support rod 150 flows to the contact surface of the dissimilar metal plates 200a and 200b through the first electrode tip 130 to heat the contact surface due to the heat generated by the contact resistance.
  • the heat generated by the second electrode tip 140 and the contact resistance generated by the first electrode tip 130 act upward to melt the contact surfaces between the dissimilar metal plates 200a and 200b to form the dissimilar metal plates 200a, 200b can be spot-welded.
  • Fig. 10 shows a modification of Fig. 9.
  • the spot welding rods 100 is provided with a rod-shaped spot welding support rod 160 to receive power from a power supply unit, a connection portion 164 to be coupled to the spot welding support rod 160
  • a first electrode tip 130 coupled to an end of the spot welding support rod 160 and a second electrode tip 140 coupled to an end of the connection portion 164.
  • connection portion 164 may be formed with a hollow portion and may be coupled to the outer circumferential surface of the spot welding support bar 160.
  • the connection portion 164 may extend to surround the outer surface of the end portion of the spot welding support bar 160,
  • the annular groove 162 is formed at the end of the annular groove. Accordingly, the first electrode tip 130 and the second electrode tip 140 can be coupled to each other in the same manner as in FIG.
  • the inner side surface of the connecting portion 164 is formed with an inner inclined surface 165 to correspond to the lower inclined surface 163 and the lower inclined surface 163 is formed on the outer surface of the middle portion of the cylindrical spot- And the connecting portion 164 can be easily coupled to the cylindrical spot-welding support bar 160.
  • the structure and the combination of the first electrode tip 130 and the second electrode tip 140 are the same as those of the embodiment of FIG.
  • the electric resistance spot welder of the double electrode according to the present invention can be easily formed by attaching the connecting portion 164 to the conventional spot electrode of the single electrode.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Resistance Welding (AREA)

Abstract

L'invention concerne une machine à souder par points par résistance électrique ayant une double pointe d'électrode composite. Selon l'invention, cette machine à souder, qui accomplit un soudage par points, comprend des baguettes de soudage par points encadrant une première plaque métallique et une seconde plaque métallique qui se chevauchent et comportent une électrode formée à une extrémité, en contact avec les plaques métalliques. La baguette de soudage par points comprend: une première baguette de support de soudage par points en forme de tige qui reçoit de l'énergie fournie par un premier module d'alimentation électrique; une seconde baguette de support de soudage par points en forme de tige qui reçoit de l'énergie fournie par un second module d'alimentation électrique, et loge la première baguette de support de soudage par points dont elle est espacée; une première pointe d'électrode couplée à une extrémité de la première baguette de support de soudage par points; et une seconde pointe d'électrode couplée à une extrémité de la seconde baguette de support de soudage par points et logeant la première électrode.
PCT/KR2017/011528 2017-06-19 2017-10-18 Machine à souder par points par résistance électrique ayant une double pointe d'électrode composite WO2018235998A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR10-2017-0077301 2017-06-19
KR1020170077301A KR101923667B1 (ko) 2017-06-19 2017-06-19 이중복합 전극팁을 가지는 전기저항 스폿용접기

Publications (1)

Publication Number Publication Date
WO2018235998A1 true WO2018235998A1 (fr) 2018-12-27

Family

ID=60922380

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/KR2017/011528 WO2018235998A1 (fr) 2017-06-19 2017-10-18 Machine à souder par points par résistance électrique ayant une double pointe d'électrode composite

Country Status (2)

Country Link
KR (1) KR101923667B1 (fr)
WO (1) WO2018235998A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101949368B1 (ko) * 2018-11-15 2019-02-18 부경대학교 산학협력단 삼중 복합 전극팁 및 병렬형 삼중 가압에 의한 전기저항 스폿용접기

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06179082A (ja) * 1992-12-14 1994-06-28 Furukawa Alum Co Ltd 複動型抵抗スポット溶接用電極
KR100902767B1 (ko) * 2008-01-02 2009-06-15 한종공업 주식회사 냉각수 과열 방지 장치가 구비된 너트용 스폿 용접기
JP2010082665A (ja) * 2008-09-30 2010-04-15 Neturen Co Ltd 金属材の溶接装置
KR20140030644A (ko) * 2012-09-03 2014-03-12 진인태 보조가열전극이 부착된 스폿용접기 및 이를 이용한 스폿용접방법
KR20150087061A (ko) * 2014-01-21 2015-07-29 주식회사 성우하이텍 진동 스폿 용접장치 및 진동 스폿 용접방법

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06179082A (ja) * 1992-12-14 1994-06-28 Furukawa Alum Co Ltd 複動型抵抗スポット溶接用電極
KR100902767B1 (ko) * 2008-01-02 2009-06-15 한종공업 주식회사 냉각수 과열 방지 장치가 구비된 너트용 스폿 용접기
JP2010082665A (ja) * 2008-09-30 2010-04-15 Neturen Co Ltd 金属材の溶接装置
KR20140030644A (ko) * 2012-09-03 2014-03-12 진인태 보조가열전극이 부착된 스폿용접기 및 이를 이용한 스폿용접방법
KR20150087061A (ko) * 2014-01-21 2015-07-29 주식회사 성우하이텍 진동 스폿 용접장치 및 진동 스폿 용접방법

Also Published As

Publication number Publication date
KR20170134275A (ko) 2017-12-06
KR101923667B1 (ko) 2018-11-29

Similar Documents

Publication Publication Date Title
JP4109540B2 (ja) 樹脂チューブの溶着装置
WO2020036249A1 (fr) Machine de soudage par fil par résistance électrique et machine de soudage par points par résistance électrique de feuilles métalliques superposées par chauffage par induction et frottement de surface rotatif
WO2018235998A1 (fr) Machine à souder par points par résistance électrique ayant une double pointe d'électrode composite
WO2020017690A1 (fr) Dispositif de soudage par points à résistance électrique à double électrode composite à chauffage par induction
WO2019098436A1 (fr) Machine permettant d'effectuer un soudage par points par résistance électrique en délivrant de multiples courants électriques et en effectuant de multiples pressurisations
JPS58225598A (ja) ア−ク炉用の電極
CN107252961A (zh) 一种螺柱焊接方法及焊接装置
JPS6343675B2 (fr)
WO2012165767A2 (fr) Batterie secondaire, et procédé de fabrication associé
WO2021002595A1 (fr) Élément de raccordement pour élément chauffant en céramique
JPH04217783A (ja) 炉底電極を備えた直流電気炉
JPS6418583A (en) Method for welding al plate or the like
CN220155770U (zh) 一种充电桩枪头多点温控保护结构
WO2020052042A1 (fr) Appareil de détection de qualité de soudage et dispositif de soudage
WO2020017691A1 (fr) Machine à souder par points à résistance électrique utilisant un chauffage par induction, un multi-courant et une multi-pression
CN217825417U (zh) 一种防止金属硅炉内电极熔断的装置
JPS6171188A (ja) 積層板の抵抗溶接方法
US4296303A (en) Method for making intercell connections in multi-cell storage battery
KR101949368B1 (ko) 삼중 복합 전극팁 및 병렬형 삼중 가압에 의한 전기저항 스폿용접기
KR20180075804A (ko) 배터리 모듈 및 이를 제조하는 방법
CN117655483A (zh) 螺柱电阻焊工装及焊接方法
CN116598809A (zh) 一种充电桩枪头多点温控保护结构
JP3109139B2 (ja) 直流ア−ク炉の炉底構造
JPH0219538Y2 (fr)
JPS6282696A (ja) アーク又は抵抗溶解炉の接触電極装置への電流及び冷却媒体の供給装置

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 17915020

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 17915020

Country of ref document: EP

Kind code of ref document: A1